diff options
Diffstat (limited to 'drivers/scsi')
109 files changed, 11618 insertions, 2798 deletions
diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c index 82abfce1cb42..a209c3418898 100644 --- a/drivers/scsi/53c700.c +++ b/drivers/scsi/53c700.c @@ -299,7 +299,7 @@ NCR_700_detect(struct scsi_host_template *tpnt, memory = dma_alloc_noncoherent(hostdata->dev, TOTAL_MEM_SIZE, &pScript, GFP_KERNEL); if(memory == NULL) { - printk(KERN_ERR "53c700: Failed to allocate memory for driver, detatching\n"); + printk(KERN_ERR "53c700: Failed to allocate memory for driver, detaching\n"); return NULL; } diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig index 456e1567841c..95f7a76cfafc 100644 --- a/drivers/scsi/Kconfig +++ b/drivers/scsi/Kconfig @@ -345,6 +345,7 @@ source "drivers/scsi/cxgbi/Kconfig" source "drivers/scsi/bnx2i/Kconfig" source "drivers/scsi/bnx2fc/Kconfig" source "drivers/scsi/be2iscsi/Kconfig" +source "drivers/scsi/cxlflash/Kconfig" config SGIWD93_SCSI tristate "SGI WD93C93 SCSI Driver" diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile index 91209e3d27e3..1a8c9b53fafa 100644 --- a/drivers/scsi/Makefile +++ b/drivers/scsi/Makefile @@ -102,6 +102,7 @@ obj-$(CONFIG_SCSI_7000FASST) += wd7000.o obj-$(CONFIG_SCSI_EATA) += eata.o obj-$(CONFIG_SCSI_DC395x) += dc395x.o obj-$(CONFIG_SCSI_AM53C974) += esp_scsi.o am53c974.o +obj-$(CONFIG_CXLFLASH) += cxlflash/ obj-$(CONFIG_MEGARAID_LEGACY) += megaraid.o obj-$(CONFIG_MEGARAID_NEWGEN) += megaraid/ obj-$(CONFIG_MEGARAID_SAS) += megaraid/ @@ -171,6 +172,7 @@ scsi_mod-$(CONFIG_SYSCTL) += scsi_sysctl.o scsi_mod-$(CONFIG_SCSI_PROC_FS) += scsi_proc.o scsi_mod-y += scsi_trace.o scsi_logging.o scsi_mod-$(CONFIG_PM) += scsi_pm.o +scsi_mod-$(CONFIG_SCSI_DH) += scsi_dh.o hv_storvsc-y := storvsc_drv.o diff --git a/drivers/scsi/a100u2w.c b/drivers/scsi/a100u2w.c index cac6b37d7b1b..8086bd0ac9fd 100644 --- a/drivers/scsi/a100u2w.c +++ b/drivers/scsi/a100u2w.c @@ -888,7 +888,7 @@ static int inia100_build_scb(struct orc_host * host, struct orc_scb * scb, struc scb->sense_len = SENSE_SIZE; scb->cdb_len = cmd->cmd_len; if (scb->cdb_len >= IMAX_CDB) { - printk("max cdb length= %x\b", cmd->cmd_len); + printk("max cdb length= %x\n", cmd->cmd_len); scb->cdb_len = IMAX_CDB; } scb->ident = (u8)(cmd->device->lun & 0xff) | DISC_ALLOW; diff --git a/drivers/scsi/aic7xxx/aic7xxx_core.c b/drivers/scsi/aic7xxx/aic7xxx_core.c index c4829d84b335..64ab9eaec428 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_core.c +++ b/drivers/scsi/aic7xxx/aic7xxx_core.c @@ -79,7 +79,7 @@ struct ahc_hard_error_entry { static const struct ahc_hard_error_entry ahc_hard_errors[] = { { ILLHADDR, "Illegal Host Access" }, - { ILLSADDR, "Illegal Sequencer Address referrenced" }, + { ILLSADDR, "Illegal Sequencer Address referenced" }, { ILLOPCODE, "Illegal Opcode in sequencer program" }, { SQPARERR, "Sequencer Parity Error" }, { DPARERR, "Data-path Parity Error" }, diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c index 4b135cca42a1..f6c336b05d5b 100644 --- a/drivers/scsi/aic94xx/aic94xx_init.c +++ b/drivers/scsi/aic94xx/aic94xx_init.c @@ -100,15 +100,11 @@ static int asd_map_memio(struct asd_ha_struct *asd_ha) pci_name(asd_ha->pcidev)); goto Err; } - if (io_handle->flags & IORESOURCE_CACHEABLE) - io_handle->addr = ioremap(io_handle->start, - io_handle->len); - else - io_handle->addr = ioremap_nocache(io_handle->start, - io_handle->len); + io_handle->addr = ioremap(io_handle->start, io_handle->len); if (!io_handle->addr) { asd_printk("couldn't map MBAR%d of %s\n", i==0?0:1, pci_name(asd_ha->pcidev)); + err = -ENOMEM; goto Err_unreq; } } diff --git a/drivers/scsi/aic94xx/aic94xx_sds.c b/drivers/scsi/aic94xx/aic94xx_sds.c index edb43fda9f36..c831e30411fa 100644 --- a/drivers/scsi/aic94xx/aic94xx_sds.c +++ b/drivers/scsi/aic94xx/aic94xx_sds.c @@ -983,7 +983,7 @@ static int asd_process_ctrl_a_user(struct asd_ha_struct *asd_ha, { int err, i; u32 offs, size; - struct asd_ll_el *el; + struct asd_ll_el *el = NULL; struct asd_ctrla_phy_settings *ps; struct asd_ctrla_phy_settings dflt_ps; @@ -1004,6 +1004,7 @@ static int asd_process_ctrl_a_user(struct asd_ha_struct *asd_ha, size = sizeof(struct asd_ctrla_phy_settings); ps = &dflt_ps; + goto out_process; } if (size == 0) @@ -1028,7 +1029,7 @@ static int asd_process_ctrl_a_user(struct asd_ha_struct *asd_ha, ASD_DPRINTK("couldn't find ctrla phy settings struct\n"); goto out2; } - +out_process: err = asd_process_ctrla_phy_settings(asd_ha, ps); if (err) { ASD_DPRINTK("couldn't process ctrla phy settings\n"); diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c index 914c39f9f388..333db5953607 100644 --- a/drivers/scsi/arcmsr/arcmsr_hba.c +++ b/drivers/scsi/arcmsr/arcmsr_hba.c @@ -259,10 +259,7 @@ static bool arcmsr_remap_pciregion(struct AdapterControlBlock *acb) addr = (unsigned long)pci_resource_start(pdev, 0); range = pci_resource_len(pdev, 0); flags = pci_resource_flags(pdev, 0); - if (flags & IORESOURCE_CACHEABLE) - mem_base0 = ioremap(addr, range); - else - mem_base0 = ioremap_nocache(addr, range); + mem_base0 = ioremap(addr, range); if (!mem_base0) { pr_notice("arcmsr%d: memory mapping region fail\n", acb->host->host_no); @@ -3264,7 +3261,7 @@ static int arcmsr_iop_confirm(struct AdapterControlBlock *acb) reg->doneq_index = 0; writel(ARCMSR_MESSAGE_SET_POST_WINDOW, reg->drv2iop_doorbell); if (!arcmsr_hbaB_wait_msgint_ready(acb)) { - printk(KERN_NOTICE "arcmsr%d:can not set diver mode\n", \ + printk(KERN_NOTICE "arcmsr%d: cannot set driver mode\n", \ acb->host->host_no); return 1; } diff --git a/drivers/scsi/bfa/bfa_ioc.c b/drivers/scsi/bfa/bfa_ioc.c index 315d6d6dcfc8..98f7e8cca52d 100644 --- a/drivers/scsi/bfa/bfa_ioc.c +++ b/drivers/scsi/bfa/bfa_ioc.c @@ -3665,19 +3665,19 @@ bfa_cb_sfp_state_query(struct bfa_sfp_s *sfp) if (sfp->state_query_cbfn) sfp->state_query_cbfn(sfp->state_query_cbarg, sfp->status); - sfp->media = NULL; - } + sfp->media = NULL; + } - if (sfp->portspeed) { - sfp->status = bfa_sfp_speed_valid(sfp, sfp->portspeed); - if (sfp->state_query_cbfn) - sfp->state_query_cbfn(sfp->state_query_cbarg, - sfp->status); - sfp->portspeed = BFA_PORT_SPEED_UNKNOWN; - } + if (sfp->portspeed) { + sfp->status = bfa_sfp_speed_valid(sfp, sfp->portspeed); + if (sfp->state_query_cbfn) + sfp->state_query_cbfn(sfp->state_query_cbarg, + sfp->status); + sfp->portspeed = BFA_PORT_SPEED_UNKNOWN; + } - sfp->state_query_lock = 0; - sfp->state_query_cbfn = NULL; + sfp->state_query_lock = 0; + sfp->state_query_cbfn = NULL; } /* @@ -3878,7 +3878,7 @@ bfa_sfp_show_comp(struct bfa_sfp_s *sfp, struct bfi_mbmsg_s *msg) bfa_trc(sfp, sfp->data_valid); if (sfp->data_valid) { u32 size = sizeof(struct sfp_mem_s); - u8 *des = (u8 *) &(sfp->sfpmem); + u8 *des = (u8 *)(sfp->sfpmem); memcpy(des, sfp->dbuf_kva, size); } /* diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c index 7223b0006740..8367c11d554b 100644 --- a/drivers/scsi/bfa/bfad_im.c +++ b/drivers/scsi/bfa/bfad_im.c @@ -851,6 +851,8 @@ bfad_im_module_exit(void) if (bfad_im_scsi_vport_transport_template) fc_release_transport(bfad_im_scsi_vport_transport_template); + + idr_destroy(&bfad_im_port_index); } void diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c index 98d06d151958..d5cdc4776707 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -2051,9 +2051,49 @@ static int bnx2fc_disable(struct net_device *netdev) return rc; } +static uint bnx2fc_npiv_create_vports(struct fc_lport *lport, + struct cnic_fc_npiv_tbl *npiv_tbl) +{ + struct fc_vport_identifiers vpid; + uint i, created = 0; + + if (npiv_tbl->count > MAX_NPIV_ENTRIES) { + BNX2FC_HBA_DBG(lport, "Exceeded count max of npiv table\n"); + goto done; + } + + /* Sanity check the first entry to make sure it's not 0 */ + if (wwn_to_u64(npiv_tbl->wwnn[0]) == 0 && + wwn_to_u64(npiv_tbl->wwpn[0]) == 0) { + BNX2FC_HBA_DBG(lport, "First NPIV table entries invalid.\n"); + goto done; + } + + vpid.roles = FC_PORT_ROLE_FCP_INITIATOR; + vpid.vport_type = FC_PORTTYPE_NPIV; + vpid.disable = false; + + for (i = 0; i < npiv_tbl->count; i++) { + vpid.node_name = wwn_to_u64(npiv_tbl->wwnn[i]); + vpid.port_name = wwn_to_u64(npiv_tbl->wwpn[i]); + scnprintf(vpid.symbolic_name, sizeof(vpid.symbolic_name), + "NPIV[%u]:%016llx-%016llx", + created, vpid.port_name, vpid.node_name); + if (fc_vport_create(lport->host, 0, &vpid)) + created++; + else + BNX2FC_HBA_DBG(lport, "Failed to create vport\n"); + } +done: + return created; +} + static int __bnx2fc_enable(struct fcoe_ctlr *ctlr) { struct bnx2fc_interface *interface = fcoe_ctlr_priv(ctlr); + struct bnx2fc_hba *hba; + struct cnic_fc_npiv_tbl npiv_tbl; + struct fc_lport *lport; if (interface->enabled == false) { if (!ctlr->lp) { @@ -2064,6 +2104,32 @@ static int __bnx2fc_enable(struct fcoe_ctlr *ctlr) interface->enabled = true; } } + + /* Create static NPIV ports if any are contained in NVRAM */ + hba = interface->hba; + lport = ctlr->lp; + + if (!hba) + goto done; + + if (!hba->cnic) + goto done; + + if (!lport) + goto done; + + if (!lport->host) + goto done; + + if (!hba->cnic->get_fc_npiv_tbl) + goto done; + + memset(&npiv_tbl, 0, sizeof(npiv_tbl)); + if (hba->cnic->get_fc_npiv_tbl(hba->cnic, &npiv_tbl)) + goto done; + + bnx2fc_npiv_create_vports(lport, &npiv_tbl); +done: return 0; } diff --git a/drivers/scsi/cxlflash/Kconfig b/drivers/scsi/cxlflash/Kconfig new file mode 100644 index 000000000000..c052104e523e --- /dev/null +++ b/drivers/scsi/cxlflash/Kconfig @@ -0,0 +1,11 @@ +# +# IBM CXL-attached Flash Accelerator SCSI Driver +# + +config CXLFLASH + tristate "Support for IBM CAPI Flash" + depends on PCI && SCSI && CXL && EEH + default m + help + Allows CAPI Accelerated IO to Flash + If unsure, say N. diff --git a/drivers/scsi/cxlflash/Makefile b/drivers/scsi/cxlflash/Makefile new file mode 100644 index 000000000000..9e39866d473b --- /dev/null +++ b/drivers/scsi/cxlflash/Makefile @@ -0,0 +1,2 @@ +obj-$(CONFIG_CXLFLASH) += cxlflash.o +cxlflash-y += main.o superpipe.o lunmgt.o vlun.o diff --git a/drivers/scsi/cxlflash/common.h b/drivers/scsi/cxlflash/common.h new file mode 100644 index 000000000000..1c56037146e1 --- /dev/null +++ b/drivers/scsi/cxlflash/common.h @@ -0,0 +1,208 @@ +/* + * CXL Flash Device Driver + * + * Written by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>, IBM Corporation + * Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation + * + * Copyright (C) 2015 IBM Corporation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#ifndef _CXLFLASH_COMMON_H +#define _CXLFLASH_COMMON_H + +#include <linux/list.h> +#include <linux/types.h> +#include <scsi/scsi.h> +#include <scsi/scsi_device.h> + + +#define MAX_CONTEXT CXLFLASH_MAX_CONTEXT /* num contexts per afu */ + +#define CXLFLASH_BLOCK_SIZE 4096 /* 4K blocks */ +#define CXLFLASH_MAX_XFER_SIZE 16777216 /* 16MB transfer */ +#define CXLFLASH_MAX_SECTORS (CXLFLASH_MAX_XFER_SIZE/512) /* SCSI wants + max_sectors + in units of + 512 byte + sectors + */ + +#define NUM_RRQ_ENTRY 16 /* for master issued cmds */ +#define MAX_RHT_PER_CONTEXT (PAGE_SIZE / sizeof(struct sisl_rht_entry)) + +/* AFU command retry limit */ +#define MC_RETRY_CNT 5 /* sufficient for SCSI check and + certain AFU errors */ + +/* Command management definitions */ +#define CXLFLASH_NUM_CMDS (2 * CXLFLASH_MAX_CMDS) /* Must be a pow2 for + alignment and more + efficient array + index derivation + */ + +#define CXLFLASH_MAX_CMDS 16 +#define CXLFLASH_MAX_CMDS_PER_LUN CXLFLASH_MAX_CMDS + + +static inline void check_sizes(void) +{ + BUILD_BUG_ON_NOT_POWER_OF_2(CXLFLASH_NUM_CMDS); +} + +/* AFU defines a fixed size of 4K for command buffers (borrow 4K page define) */ +#define CMD_BUFSIZE SIZE_4K + +/* flags in IOA status area for host use */ +#define B_DONE 0x01 +#define B_ERROR 0x02 /* set with B_DONE */ +#define B_TIMEOUT 0x04 /* set with B_DONE & B_ERROR */ + +enum cxlflash_lr_state { + LINK_RESET_INVALID, + LINK_RESET_REQUIRED, + LINK_RESET_COMPLETE +}; + +enum cxlflash_init_state { + INIT_STATE_NONE, + INIT_STATE_PCI, + INIT_STATE_AFU, + INIT_STATE_SCSI +}; + +enum cxlflash_state { + STATE_NORMAL, /* Normal running state, everything good */ + STATE_LIMBO, /* Limbo running state, trying to reset/recover */ + STATE_FAILTERM /* Failed/terminating state, error out users/threads */ +}; + +/* + * Each context has its own set of resource handles that is visible + * only from that context. + */ + +struct cxlflash_cfg { + struct afu *afu; + struct cxl_context *mcctx; + + struct pci_dev *dev; + struct pci_device_id *dev_id; + struct Scsi_Host *host; + + ulong cxlflash_regs_pci; + + struct work_struct work_q; + enum cxlflash_init_state init_state; + enum cxlflash_lr_state lr_state; + int lr_port; + + struct cxl_afu *cxl_afu; + + struct pci_pool *cxlflash_cmd_pool; + struct pci_dev *parent_dev; + + atomic_t recovery_threads; + struct mutex ctx_recovery_mutex; + struct mutex ctx_tbl_list_mutex; + struct ctx_info *ctx_tbl[MAX_CONTEXT]; + struct list_head ctx_err_recovery; /* contexts w/ recovery pending */ + struct file_operations cxl_fops; + + atomic_t num_user_contexts; + + /* Parameters that are LUN table related */ + int last_lun_index[CXLFLASH_NUM_FC_PORTS]; + int promote_lun_index; + struct list_head lluns; /* list of llun_info structs */ + + wait_queue_head_t tmf_waitq; + bool tmf_active; + wait_queue_head_t limbo_waitq; + enum cxlflash_state state; +}; + +struct afu_cmd { + struct sisl_ioarcb rcb; /* IOARCB (cache line aligned) */ + struct sisl_ioasa sa; /* IOASA must follow IOARCB */ + spinlock_t slock; + struct completion cevent; + char *buf; /* per command buffer */ + struct afu *parent; + int slot; + atomic_t free; + + u8 cmd_tmf:1; + + /* As per the SISLITE spec the IOARCB EA has to be 16-byte aligned. + * However for performance reasons the IOARCB/IOASA should be + * cache line aligned. + */ +} __aligned(cache_line_size()); + +struct afu { + /* Stuff requiring alignment go first. */ + + u64 rrq_entry[NUM_RRQ_ENTRY]; /* 128B RRQ */ + /* + * Command & data for AFU commands. + */ + struct afu_cmd cmd[CXLFLASH_NUM_CMDS]; + + /* Beware of alignment till here. Preferably introduce new + * fields after this point + */ + + /* AFU HW */ + struct cxl_ioctl_start_work work; + struct cxlflash_afu_map *afu_map; /* entire MMIO map */ + struct sisl_host_map *host_map; /* MC host map */ + struct sisl_ctrl_map *ctrl_map; /* MC control map */ + + ctx_hndl_t ctx_hndl; /* master's context handle */ + u64 *hrrq_start; + u64 *hrrq_end; + u64 *hrrq_curr; + bool toggle; + bool read_room; + atomic64_t room; + u64 hb; + u32 cmd_couts; /* Number of command checkouts */ + u32 internal_lun; /* User-desired LUN mode for this AFU */ + + char version[8]; + u64 interface_version; + + struct cxlflash_cfg *parent; /* Pointer back to parent cxlflash_cfg */ + +}; + +static inline u64 lun_to_lunid(u64 lun) +{ + u64 lun_id; + + int_to_scsilun(lun, (struct scsi_lun *)&lun_id); + return swab64(lun_id); +} + +int cxlflash_send_cmd(struct afu *, struct afu_cmd *); +void cxlflash_wait_resp(struct afu *, struct afu_cmd *); +int cxlflash_afu_reset(struct cxlflash_cfg *); +struct afu_cmd *cxlflash_cmd_checkout(struct afu *); +void cxlflash_cmd_checkin(struct afu_cmd *); +int cxlflash_afu_sync(struct afu *, ctx_hndl_t, res_hndl_t, u8); +void cxlflash_list_init(void); +void cxlflash_term_global_luns(void); +void cxlflash_free_errpage(void); +int cxlflash_ioctl(struct scsi_device *, int, void __user *); +void cxlflash_stop_term_user_contexts(struct cxlflash_cfg *); +int cxlflash_mark_contexts_error(struct cxlflash_cfg *); +void cxlflash_term_local_luns(struct cxlflash_cfg *); +void cxlflash_restore_luntable(struct cxlflash_cfg *); + +#endif /* ifndef _CXLFLASH_COMMON_H */ diff --git a/drivers/scsi/cxlflash/lunmgt.c b/drivers/scsi/cxlflash/lunmgt.c new file mode 100644 index 000000000000..d98ad0ff64c1 --- /dev/null +++ b/drivers/scsi/cxlflash/lunmgt.c @@ -0,0 +1,266 @@ +/* + * CXL Flash Device Driver + * + * Written by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>, IBM Corporation + * Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation + * + * Copyright (C) 2015 IBM Corporation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#include <misc/cxl.h> +#include <asm/unaligned.h> + +#include <scsi/scsi_host.h> +#include <uapi/scsi/cxlflash_ioctl.h> + +#include "sislite.h" +#include "common.h" +#include "vlun.h" +#include "superpipe.h" + +/** + * create_local() - allocate and initialize a local LUN information structure + * @sdev: SCSI device associated with LUN. + * @wwid: World Wide Node Name for LUN. + * + * Return: Allocated local llun_info structure on success, NULL on failure + */ +static struct llun_info *create_local(struct scsi_device *sdev, u8 *wwid) +{ + struct llun_info *lli = NULL; + + lli = kzalloc(sizeof(*lli), GFP_KERNEL); + if (unlikely(!lli)) { + pr_err("%s: could not allocate lli\n", __func__); + goto out; + } + + lli->sdev = sdev; + lli->newly_created = true; + lli->host_no = sdev->host->host_no; + lli->in_table = false; + + memcpy(lli->wwid, wwid, DK_CXLFLASH_MANAGE_LUN_WWID_LEN); +out: + return lli; +} + +/** + * create_global() - allocate and initialize a global LUN information structure + * @sdev: SCSI device associated with LUN. + * @wwid: World Wide Node Name for LUN. + * + * Return: Allocated global glun_info structure on success, NULL on failure + */ +static struct glun_info *create_global(struct scsi_device *sdev, u8 *wwid) +{ + struct glun_info *gli = NULL; + + gli = kzalloc(sizeof(*gli), GFP_KERNEL); + if (unlikely(!gli)) { + pr_err("%s: could not allocate gli\n", __func__); + goto out; + } + + mutex_init(&gli->mutex); + memcpy(gli->wwid, wwid, DK_CXLFLASH_MANAGE_LUN_WWID_LEN); +out: + return gli; +} + +/** + * refresh_local() - find and update local LUN information structure by WWID + * @cfg: Internal structure associated with the host. + * @wwid: WWID associated with LUN. + * + * When the LUN is found, mark it by updating it's newly_created field. + * + * Return: Found local lun_info structure on success, NULL on failure + * If a LUN with the WWID is found in the list, refresh it's state. + */ +static struct llun_info *refresh_local(struct cxlflash_cfg *cfg, u8 *wwid) +{ + struct llun_info *lli, *temp; + + list_for_each_entry_safe(lli, temp, &cfg->lluns, list) + if (!memcmp(lli->wwid, wwid, DK_CXLFLASH_MANAGE_LUN_WWID_LEN)) { + lli->newly_created = false; + return lli; + } + + return NULL; +} + +/** + * lookup_global() - find a global LUN information structure by WWID + * @wwid: WWID associated with LUN. + * + * Return: Found global lun_info structure on success, NULL on failure + */ +static struct glun_info *lookup_global(u8 *wwid) +{ + struct glun_info *gli, *temp; + + list_for_each_entry_safe(gli, temp, &global.gluns, list) + if (!memcmp(gli->wwid, wwid, DK_CXLFLASH_MANAGE_LUN_WWID_LEN)) + return gli; + + return NULL; +} + +/** + * find_and_create_lun() - find or create a local LUN information structure + * @sdev: SCSI device associated with LUN. + * @wwid: WWID associated with LUN. + * + * The LUN is kept both in a local list (per adapter) and in a global list + * (across all adapters). Certain attributes of the LUN are local to the + * adapter (such as index, port selection mask etc.). + * The block allocation map is shared across all adapters (i.e. associated + * wih the global list). Since different attributes are associated with + * the per adapter and global entries, allocate two separate structures for each + * LUN (one local, one global). + * + * Keep a pointer back from the local to the global entry. + * + * Return: Found/Allocated local lun_info structure on success, NULL on failure + */ +static struct llun_info *find_and_create_lun(struct scsi_device *sdev, u8 *wwid) +{ + struct llun_info *lli = NULL; + struct glun_info *gli = NULL; + struct Scsi_Host *shost = sdev->host; + struct cxlflash_cfg *cfg = shost_priv(shost); + + mutex_lock(&global.mutex); + if (unlikely(!wwid)) + goto out; + + lli = refresh_local(cfg, wwid); + if (lli) + goto out; + + lli = create_local(sdev, wwid); + if (unlikely(!lli)) + goto out; + + gli = lookup_global(wwid); + if (gli) { + lli->parent = gli; + list_add(&lli->list, &cfg->lluns); + goto out; + } + + gli = create_global(sdev, wwid); + if (unlikely(!gli)) { + kfree(lli); + lli = NULL; + goto out; + } + + lli->parent = gli; + list_add(&lli->list, &cfg->lluns); + + list_add(&gli->list, &global.gluns); + +out: + mutex_unlock(&global.mutex); + pr_debug("%s: returning %p\n", __func__, lli); + return lli; +} + +/** + * cxlflash_term_local_luns() - Delete all entries from local LUN list, free. + * @cfg: Internal structure associated with the host. + */ +void cxlflash_term_local_luns(struct cxlflash_cfg *cfg) +{ + struct llun_info *lli, *temp; + + mutex_lock(&global.mutex); + list_for_each_entry_safe(lli, temp, &cfg->lluns, list) { + list_del(&lli->list); + kfree(lli); + } + mutex_unlock(&global.mutex); +} + +/** + * cxlflash_list_init() - initializes the global LUN list + */ +void cxlflash_list_init(void) +{ + INIT_LIST_HEAD(&global.gluns); + mutex_init(&global.mutex); + global.err_page = NULL; +} + +/** + * cxlflash_term_global_luns() - frees resources associated with global LUN list + */ +void cxlflash_term_global_luns(void) +{ + struct glun_info *gli, *temp; + + mutex_lock(&global.mutex); + list_for_each_entry_safe(gli, temp, &global.gluns, list) { + list_del(&gli->list); + cxlflash_ba_terminate(&gli->blka.ba_lun); + kfree(gli); + } + mutex_unlock(&global.mutex); +} + +/** + * cxlflash_manage_lun() - handles LUN management activities + * @sdev: SCSI device associated with LUN. + * @manage: Manage ioctl data structure. + * + * This routine is used to notify the driver about a LUN's WWID and associate + * SCSI devices (sdev) with a global LUN instance. Additionally it serves to + * change a LUN's operating mode: legacy or superpipe. + * + * Return: 0 on success, -errno on failure + */ +int cxlflash_manage_lun(struct scsi_device *sdev, + struct dk_cxlflash_manage_lun *manage) +{ + int rc = 0; + struct llun_info *lli = NULL; + u64 flags = manage->hdr.flags; + u32 chan = sdev->channel; + + lli = find_and_create_lun(sdev, manage->wwid); + pr_debug("%s: ENTER: WWID = %016llX%016llX, flags = %016llX li = %p\n", + __func__, get_unaligned_le64(&manage->wwid[0]), + get_unaligned_le64(&manage->wwid[8]), + manage->hdr.flags, lli); + if (unlikely(!lli)) { + rc = -ENOMEM; + goto out; + } + + if (flags & DK_CXLFLASH_MANAGE_LUN_ENABLE_SUPERPIPE) { + if (lli->newly_created) + lli->port_sel = CHAN2PORT(chan); + else + lli->port_sel = BOTH_PORTS; + /* Store off lun in unpacked, AFU-friendly format */ + lli->lun_id[chan] = lun_to_lunid(sdev->lun); + sdev->hostdata = lli; + } else if (flags & DK_CXLFLASH_MANAGE_LUN_DISABLE_SUPERPIPE) { + if (lli->parent->mode != MODE_NONE) + rc = -EBUSY; + else + sdev->hostdata = NULL; + } + +out: + pr_debug("%s: returning rc=%d\n", __func__, rc); + return rc; +} diff --git a/drivers/scsi/cxlflash/main.c b/drivers/scsi/cxlflash/main.c new file mode 100644 index 000000000000..3e3ccf16e7c2 --- /dev/null +++ b/drivers/scsi/cxlflash/main.c @@ -0,0 +1,2494 @@ +/* + * CXL Flash Device Driver + * + * Written by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>, IBM Corporation + * Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation + * + * Copyright (C) 2015 IBM Corporation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#include <linux/delay.h> +#include <linux/list.h> +#include <linux/module.h> +#include <linux/pci.h> + +#include <asm/unaligned.h> + +#include <misc/cxl.h> + +#include <scsi/scsi_cmnd.h> +#include <scsi/scsi_host.h> +#include <uapi/scsi/cxlflash_ioctl.h> + +#include "main.h" +#include "sislite.h" +#include "common.h" + +MODULE_DESCRIPTION(CXLFLASH_ADAPTER_NAME); +MODULE_AUTHOR("Manoj N. Kumar <manoj@linux.vnet.ibm.com>"); +MODULE_AUTHOR("Matthew R. Ochs <mrochs@linux.vnet.ibm.com>"); +MODULE_LICENSE("GPL"); + + +/** + * cxlflash_cmd_checkout() - checks out an AFU command + * @afu: AFU to checkout from. + * + * Commands are checked out in a round-robin fashion. Note that since + * the command pool is larger than the hardware queue, the majority of + * times we will only loop once or twice before getting a command. The + * buffer and CDB within the command are initialized (zeroed) prior to + * returning. + * + * Return: The checked out command or NULL when command pool is empty. + */ +struct afu_cmd *cxlflash_cmd_checkout(struct afu *afu) +{ + int k, dec = CXLFLASH_NUM_CMDS; + struct afu_cmd *cmd; + + while (dec--) { + k = (afu->cmd_couts++ & (CXLFLASH_NUM_CMDS - 1)); + + cmd = &afu->cmd[k]; + + if (!atomic_dec_if_positive(&cmd->free)) { + pr_debug("%s: returning found index=%d\n", + __func__, cmd->slot); + memset(cmd->buf, 0, CMD_BUFSIZE); + memset(cmd->rcb.cdb, 0, sizeof(cmd->rcb.cdb)); + return cmd; + } + } + + return NULL; +} + +/** + * cxlflash_cmd_checkin() - checks in an AFU command + * @cmd: AFU command to checkin. + * + * Safe to pass commands that have already been checked in. Several + * internal tracking fields are reset as part of the checkin. Note + * that these are intentionally reset prior to toggling the free bit + * to avoid clobbering values in the event that the command is checked + * out right away. + */ +void cxlflash_cmd_checkin(struct afu_cmd *cmd) +{ + cmd->rcb.scp = NULL; + cmd->rcb.timeout = 0; + cmd->sa.ioasc = 0; + cmd->cmd_tmf = false; + cmd->sa.host_use[0] = 0; /* clears both completion and retry bytes */ + + if (unlikely(atomic_inc_return(&cmd->free) != 1)) { + pr_err("%s: Freeing cmd (%d) that is not in use!\n", + __func__, cmd->slot); + return; + } + + pr_debug("%s: released cmd %p index=%d\n", __func__, cmd, cmd->slot); +} + +/** + * process_cmd_err() - command error handler + * @cmd: AFU command that experienced the error. + * @scp: SCSI command associated with the AFU command in error. + * + * Translates error bits from AFU command to SCSI command results. + */ +static void process_cmd_err(struct afu_cmd *cmd, struct scsi_cmnd *scp) +{ + struct sisl_ioarcb *ioarcb; + struct sisl_ioasa *ioasa; + + if (unlikely(!cmd)) + return; + + ioarcb = &(cmd->rcb); + ioasa = &(cmd->sa); + + if (ioasa->rc.flags & SISL_RC_FLAGS_UNDERRUN) { + pr_debug("%s: cmd underrun cmd = %p scp = %p\n", + __func__, cmd, scp); + scp->result = (DID_ERROR << 16); + } + + if (ioasa->rc.flags & SISL_RC_FLAGS_OVERRUN) { + pr_debug("%s: cmd underrun cmd = %p scp = %p\n", + __func__, cmd, scp); + scp->result = (DID_ERROR << 16); + } + + pr_debug("%s: cmd failed afu_rc=%d scsi_rc=%d fc_rc=%d " + "afu_extra=0x%X, scsi_entra=0x%X, fc_extra=0x%X\n", + __func__, ioasa->rc.afu_rc, ioasa->rc.scsi_rc, + ioasa->rc.fc_rc, ioasa->afu_extra, ioasa->scsi_extra, + ioasa->fc_extra); + + if (ioasa->rc.scsi_rc) { + /* We have a SCSI status */ + if (ioasa->rc.flags & SISL_RC_FLAGS_SENSE_VALID) { + memcpy(scp->sense_buffer, ioasa->sense_data, + SISL_SENSE_DATA_LEN); + scp->result = ioasa->rc.scsi_rc; + } else + scp->result = ioasa->rc.scsi_rc | (DID_ERROR << 16); + } + + /* + * We encountered an error. Set scp->result based on nature + * of error. + */ + if (ioasa->rc.fc_rc) { + /* We have an FC status */ + switch (ioasa->rc.fc_rc) { + case SISL_FC_RC_LINKDOWN: + scp->result = (DID_REQUEUE << 16); + break; + case SISL_FC_RC_RESID: + /* This indicates an FCP resid underrun */ + if (!(ioasa->rc.flags & SISL_RC_FLAGS_OVERRUN)) { + /* If the SISL_RC_FLAGS_OVERRUN flag was set, + * then we will handle this error else where. + * If not then we must handle it here. + * This is probably an AFU bug. We will + * attempt a retry to see if that resolves it. + */ + scp->result = (DID_ERROR << 16); + } + break; + case SISL_FC_RC_RESIDERR: + /* Resid mismatch between adapter and device */ + case SISL_FC_RC_TGTABORT: + case SISL_FC_RC_ABORTOK: + case SISL_FC_RC_ABORTFAIL: + case SISL_FC_RC_NOLOGI: + case SISL_FC_RC_ABORTPEND: + case SISL_FC_RC_WRABORTPEND: + case SISL_FC_RC_NOEXP: + case SISL_FC_RC_INUSE: + scp->result = (DID_ERROR << 16); + break; + } + } + + if (ioasa->rc.afu_rc) { + /* We have an AFU error */ + switch (ioasa->rc.afu_rc) { + case SISL_AFU_RC_NO_CHANNELS: + scp->result = (DID_MEDIUM_ERROR << 16); + break; + case SISL_AFU_RC_DATA_DMA_ERR: + switch (ioasa->afu_extra) { + case SISL_AFU_DMA_ERR_PAGE_IN: + /* Retry */ + scp->result = (DID_IMM_RETRY << 16); + break; + case SISL_AFU_DMA_ERR_INVALID_EA: + default: + scp->result = (DID_ERROR << 16); + } + break; + case SISL_AFU_RC_OUT_OF_DATA_BUFS: + /* Retry */ + scp->result = (DID_ALLOC_FAILURE << 16); + break; + default: + scp->result = (DID_ERROR << 16); + } + } +} + +/** + * cmd_complete() - command completion handler + * @cmd: AFU command that has completed. + * + * Prepares and submits command that has either completed or timed out to + * the SCSI stack. Checks AFU command back into command pool for non-internal + * (rcb.scp populated) commands. + */ +static void cmd_complete(struct afu_cmd *cmd) +{ + struct scsi_cmnd *scp; + u32 resid; + ulong lock_flags; + struct afu *afu = cmd->parent; + struct cxlflash_cfg *cfg = afu->parent; + bool cmd_is_tmf; + + spin_lock_irqsave(&cmd->slock, lock_flags); + cmd->sa.host_use_b[0] |= B_DONE; + spin_unlock_irqrestore(&cmd->slock, lock_flags); + + if (cmd->rcb.scp) { + scp = cmd->rcb.scp; + if (unlikely(cmd->sa.rc.afu_rc || + cmd->sa.rc.scsi_rc || + cmd->sa.rc.fc_rc)) + process_cmd_err(cmd, scp); + else + scp->result = (DID_OK << 16); + + resid = cmd->sa.resid; + cmd_is_tmf = cmd->cmd_tmf; + cxlflash_cmd_checkin(cmd); /* Don't use cmd after here */ + + pr_debug("%s: calling scsi_set_resid, scp=%p " + "result=%X resid=%d\n", __func__, + scp, scp->result, resid); + + scsi_set_resid(scp, resid); + scsi_dma_unmap(scp); + scp->scsi_done(scp); + + if (cmd_is_tmf) { + spin_lock_irqsave(&cfg->tmf_waitq.lock, lock_flags); + cfg->tmf_active = false; + wake_up_all_locked(&cfg->tmf_waitq); + spin_unlock_irqrestore(&cfg->tmf_waitq.lock, + lock_flags); + } + } else + complete(&cmd->cevent); +} + +/** + * send_tmf() - sends a Task Management Function (TMF) + * @afu: AFU to checkout from. + * @scp: SCSI command from stack. + * @tmfcmd: TMF command to send. + * + * Return: + * 0 on success + * SCSI_MLQUEUE_HOST_BUSY when host is busy + */ +static int send_tmf(struct afu *afu, struct scsi_cmnd *scp, u64 tmfcmd) +{ + struct afu_cmd *cmd; + + u32 port_sel = scp->device->channel + 1; + short lflag = 0; + struct Scsi_Host *host = scp->device->host; + struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)host->hostdata; + ulong lock_flags; + int rc = 0; + + cmd = cxlflash_cmd_checkout(afu); + if (unlikely(!cmd)) { + pr_err("%s: could not get a free command\n", __func__); + rc = SCSI_MLQUEUE_HOST_BUSY; + goto out; + } + + /* If a Task Management Function is active, do not send one more. + */ + spin_lock_irqsave(&cfg->tmf_waitq.lock, lock_flags); + if (cfg->tmf_active) + wait_event_interruptible_locked_irq(cfg->tmf_waitq, + !cfg->tmf_active); + cfg->tmf_active = true; + cmd->cmd_tmf = true; + spin_unlock_irqrestore(&cfg->tmf_waitq.lock, lock_flags); + + cmd->rcb.ctx_id = afu->ctx_hndl; + cmd->rcb.port_sel = port_sel; + cmd->rcb.lun_id = lun_to_lunid(scp->device->lun); + + lflag = SISL_REQ_FLAGS_TMF_CMD; + + cmd->rcb.req_flags = (SISL_REQ_FLAGS_PORT_LUN_ID | + SISL_REQ_FLAGS_SUP_UNDERRUN | lflag); + + /* Stash the scp in the reserved field, for reuse during interrupt */ + cmd->rcb.scp = scp; + + /* Copy the CDB from the cmd passed in */ + memcpy(cmd->rcb.cdb, &tmfcmd, sizeof(tmfcmd)); + + /* Send the command */ + rc = cxlflash_send_cmd(afu, cmd); + if (unlikely(rc)) { + cxlflash_cmd_checkin(cmd); + spin_lock_irqsave(&cfg->tmf_waitq.lock, lock_flags); + cfg->tmf_active = false; + spin_unlock_irqrestore(&cfg->tmf_waitq.lock, lock_flags); + goto out; + } + + spin_lock_irqsave(&cfg->tmf_waitq.lock, lock_flags); + wait_event_interruptible_locked_irq(cfg->tmf_waitq, !cfg->tmf_active); + spin_unlock_irqrestore(&cfg->tmf_waitq.lock, lock_flags); +out: + return rc; +} + +/** + * cxlflash_driver_info() - information handler for this host driver + * @host: SCSI host associated with device. + * + * Return: A string describing the device. + */ +static const char *cxlflash_driver_info(struct Scsi_Host *host) +{ + return CXLFLASH_ADAPTER_NAME; +} + +/** + * cxlflash_queuecommand() - sends a mid-layer request + * @host: SCSI host associated with device. + * @scp: SCSI command to send. + * + * Return: + * 0 on success + * SCSI_MLQUEUE_HOST_BUSY when host is busy + */ +static int cxlflash_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *scp) +{ + struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)host->hostdata; + struct afu *afu = cfg->afu; + struct pci_dev *pdev = cfg->dev; + struct afu_cmd *cmd; + u32 port_sel = scp->device->channel + 1; + int nseg, i, ncount; + struct scatterlist *sg; + ulong lock_flags; + short lflag = 0; + int rc = 0; + + pr_debug("%s: (scp=%p) %d/%d/%d/%llu cdb=(%08X-%08X-%08X-%08X)\n", + __func__, scp, host->host_no, scp->device->channel, + scp->device->id, scp->device->lun, + get_unaligned_be32(&((u32 *)scp->cmnd)[0]), + get_unaligned_be32(&((u32 *)scp->cmnd)[1]), + get_unaligned_be32(&((u32 *)scp->cmnd)[2]), + get_unaligned_be32(&((u32 *)scp->cmnd)[3])); + + /* If a Task Management Function is active, wait for it to complete + * before continuing with regular commands. + */ + spin_lock_irqsave(&cfg->tmf_waitq.lock, lock_flags); + if (cfg->tmf_active) { + spin_unlock_irqrestore(&cfg->tmf_waitq.lock, lock_flags); + rc = SCSI_MLQUEUE_HOST_BUSY; + goto out; + } + spin_unlock_irqrestore(&cfg->tmf_waitq.lock, lock_flags); + + switch (cfg->state) { + case STATE_LIMBO: + dev_dbg_ratelimited(&cfg->dev->dev, "%s: device in limbo!\n", + __func__); + rc = SCSI_MLQUEUE_HOST_BUSY; + goto out; + case STATE_FAILTERM: + dev_dbg_ratelimited(&cfg->dev->dev, "%s: device has failed!\n", + __func__); + scp->result = (DID_NO_CONNECT << 16); + scp->scsi_done(scp); + rc = 0; + goto out; + default: + break; + } + + cmd = cxlflash_cmd_checkout(afu); + if (unlikely(!cmd)) { + pr_err("%s: could not get a free command\n", __func__); + rc = SCSI_MLQUEUE_HOST_BUSY; + goto out; + } + + cmd->rcb.ctx_id = afu->ctx_hndl; + cmd->rcb.port_sel = port_sel; + cmd->rcb.lun_id = lun_to_lunid(scp->device->lun); + + if (scp->sc_data_direction == DMA_TO_DEVICE) + lflag = SISL_REQ_FLAGS_HOST_WRITE; + else + lflag = SISL_REQ_FLAGS_HOST_READ; + + cmd->rcb.req_flags = (SISL_REQ_FLAGS_PORT_LUN_ID | + SISL_REQ_FLAGS_SUP_UNDERRUN | lflag); + + /* Stash the scp in the reserved field, for reuse during interrupt */ + cmd->rcb.scp = scp; + + nseg = scsi_dma_map(scp); + if (unlikely(nseg < 0)) { + dev_err(&pdev->dev, "%s: Fail DMA map! nseg=%d\n", + __func__, nseg); + rc = SCSI_MLQUEUE_HOST_BUSY; + goto out; + } + + ncount = scsi_sg_count(scp); + scsi_for_each_sg(scp, sg, ncount, i) { + cmd->rcb.data_len = sg_dma_len(sg); + cmd->rcb.data_ea = sg_dma_address(sg); + } + + /* Copy the CDB from the scsi_cmnd passed in */ + memcpy(cmd->rcb.cdb, scp->cmnd, sizeof(cmd->rcb.cdb)); + + /* Send the command */ + rc = cxlflash_send_cmd(afu, cmd); + if (unlikely(rc)) { + cxlflash_cmd_checkin(cmd); + scsi_dma_unmap(scp); + } + +out: + return rc; +} + +/** + * cxlflash_eh_device_reset_handler() - reset a single LUN + * @scp: SCSI command to send. + * + * Return: + * SUCCESS as defined in scsi/scsi.h + * FAILED as defined in scsi/scsi.h + */ +static int cxlflash_eh_device_reset_handler(struct scsi_cmnd *scp) +{ + int rc = SUCCESS; + struct Scsi_Host *host = scp->device->host; + struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)host->hostdata; + struct afu *afu = cfg->afu; + int rcr = 0; + + pr_debug("%s: (scp=%p) %d/%d/%d/%llu " + "cdb=(%08X-%08X-%08X-%08X)\n", __func__, scp, + host->host_no, scp->device->channel, + scp->device->id, scp->device->lun, + get_unaligned_be32(&((u32 *)scp->cmnd)[0]), + get_unaligned_be32(&((u32 *)scp->cmnd)[1]), + get_unaligned_be32(&((u32 *)scp->cmnd)[2]), + get_unaligned_be32(&((u32 *)scp->cmnd)[3])); + + switch (cfg->state) { + case STATE_NORMAL: + rcr = send_tmf(afu, scp, TMF_LUN_RESET); + if (unlikely(rcr)) + rc = FAILED; + break; + case STATE_LIMBO: + wait_event(cfg->limbo_waitq, cfg->state != STATE_LIMBO); + if (cfg->state == STATE_NORMAL) + break; + /* fall through */ + default: + rc = FAILED; + break; + } + + pr_debug("%s: returning rc=%d\n", __func__, rc); + return rc; +} + +/** + * cxlflash_eh_host_reset_handler() - reset the host adapter + * @scp: SCSI command from stack identifying host. + * + * Return: + * SUCCESS as defined in scsi/scsi.h + * FAILED as defined in scsi/scsi.h + */ +static int cxlflash_eh_host_reset_handler(struct scsi_cmnd *scp) +{ + int rc = SUCCESS; + int rcr = 0; + struct Scsi_Host *host = scp->device->host; + struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)host->hostdata; + + pr_debug("%s: (scp=%p) %d/%d/%d/%llu " + "cdb=(%08X-%08X-%08X-%08X)\n", __func__, scp, + host->host_no, scp->device->channel, + scp->device->id, scp->device->lun, + get_unaligned_be32(&((u32 *)scp->cmnd)[0]), + get_unaligned_be32(&((u32 *)scp->cmnd)[1]), + get_unaligned_be32(&((u32 *)scp->cmnd)[2]), + get_unaligned_be32(&((u32 *)scp->cmnd)[3])); + + switch (cfg->state) { + case STATE_NORMAL: + cfg->state = STATE_LIMBO; + scsi_block_requests(cfg->host); + cxlflash_mark_contexts_error(cfg); + rcr = cxlflash_afu_reset(cfg); + if (rcr) { + rc = FAILED; + cfg->state = STATE_FAILTERM; + } else + cfg->state = STATE_NORMAL; + wake_up_all(&cfg->limbo_waitq); + scsi_unblock_requests(cfg->host); + break; + case STATE_LIMBO: + wait_event(cfg->limbo_waitq, cfg->state != STATE_LIMBO); + if (cfg->state == STATE_NORMAL) + break; + /* fall through */ + default: + rc = FAILED; + break; + } + + pr_debug("%s: returning rc=%d\n", __func__, rc); + return rc; +} + +/** + * cxlflash_change_queue_depth() - change the queue depth for the device + * @sdev: SCSI device destined for queue depth change. + * @qdepth: Requested queue depth value to set. + * + * The requested queue depth is capped to the maximum supported value. + * + * Return: The actual queue depth set. + */ +static int cxlflash_change_queue_depth(struct scsi_device *sdev, int qdepth) +{ + + if (qdepth > CXLFLASH_MAX_CMDS_PER_LUN) + qdepth = CXLFLASH_MAX_CMDS_PER_LUN; + + scsi_change_queue_depth(sdev, qdepth); + return sdev->queue_depth; +} + +/** + * cxlflash_show_port_status() - queries and presents the current port status + * @dev: Generic device associated with the host owning the port. + * @attr: Device attribute representing the port. + * @buf: Buffer of length PAGE_SIZE to report back port status in ASCII. + * + * Return: The size of the ASCII string returned in @buf. + */ +static ssize_t cxlflash_show_port_status(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)shost->hostdata; + struct afu *afu = cfg->afu; + + char *disp_status; + int rc; + u32 port; + u64 status; + u64 *fc_regs; + + rc = kstrtouint((attr->attr.name + 4), 10, &port); + if (rc || (port >= NUM_FC_PORTS)) + return 0; + + fc_regs = &afu->afu_map->global.fc_regs[port][0]; + status = + (readq_be(&fc_regs[FC_MTIP_STATUS / 8]) & FC_MTIP_STATUS_MASK); + + if (status == FC_MTIP_STATUS_ONLINE) + disp_status = "online"; + else if (status == FC_MTIP_STATUS_OFFLINE) + disp_status = "offline"; + else + disp_status = "unknown"; + + return snprintf(buf, PAGE_SIZE, "%s\n", disp_status); +} + +/** + * cxlflash_show_lun_mode() - presents the current LUN mode of the host + * @dev: Generic device associated with the host. + * @attr: Device attribute representing the lun mode. + * @buf: Buffer of length PAGE_SIZE to report back the LUN mode in ASCII. + * + * Return: The size of the ASCII string returned in @buf. + */ +static ssize_t cxlflash_show_lun_mode(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)shost->hostdata; + struct afu *afu = cfg->afu; + + return snprintf(buf, PAGE_SIZE, "%u\n", afu->internal_lun); +} + +/** + * cxlflash_store_lun_mode() - sets the LUN mode of the host + * @dev: Generic device associated with the host. + * @attr: Device attribute representing the lun mode. + * @buf: Buffer of length PAGE_SIZE containing the LUN mode in ASCII. + * @count: Length of data resizing in @buf. + * + * The CXL Flash AFU supports a dummy LUN mode where the external + * links and storage are not required. Space on the FPGA is used + * to create 1 or 2 small LUNs which are presented to the system + * as if they were a normal storage device. This feature is useful + * during development and also provides manufacturing with a way + * to test the AFU without an actual device. + * + * 0 = external LUN[s] (default) + * 1 = internal LUN (1 x 64K, 512B blocks, id 0) + * 2 = internal LUN (1 x 64K, 4K blocks, id 0) + * 3 = internal LUN (2 x 32K, 512B blocks, ids 0,1) + * 4 = internal LUN (2 x 32K, 4K blocks, ids 0,1) + * + * Return: The size of the ASCII string returned in @buf. + */ +static ssize_t cxlflash_store_lun_mode(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)shost->hostdata; + struct afu *afu = cfg->afu; + int rc; + u32 lun_mode; + + rc = kstrtouint(buf, 10, &lun_mode); + if (!rc && (lun_mode < 5) && (lun_mode != afu->internal_lun)) { + afu->internal_lun = lun_mode; + cxlflash_afu_reset(cfg); + scsi_scan_host(cfg->host); + } + + return count; +} + +/** + * cxlflash_show_ioctl_version() - presents the current ioctl version of the host + * @dev: Generic device associated with the host. + * @attr: Device attribute representing the ioctl version. + * @buf: Buffer of length PAGE_SIZE to report back the ioctl version. + * + * Return: The size of the ASCII string returned in @buf. + */ +static ssize_t cxlflash_show_ioctl_version(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return scnprintf(buf, PAGE_SIZE, "%u\n", DK_CXLFLASH_VERSION_0); +} + +/** + * cxlflash_show_dev_mode() - presents the current mode of the device + * @dev: Generic device associated with the device. + * @attr: Device attribute representing the device mode. + * @buf: Buffer of length PAGE_SIZE to report back the dev mode in ASCII. + * + * Return: The size of the ASCII string returned in @buf. + */ +static ssize_t cxlflash_show_dev_mode(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct scsi_device *sdev = to_scsi_device(dev); + + return snprintf(buf, PAGE_SIZE, "%s\n", + sdev->hostdata ? "superpipe" : "legacy"); +} + +/** + * cxlflash_wait_for_pci_err_recovery() - wait for error recovery during probe + * @cxlflash: Internal structure associated with the host. + */ +static void cxlflash_wait_for_pci_err_recovery(struct cxlflash_cfg *cfg) +{ + struct pci_dev *pdev = cfg->dev; + + if (pci_channel_offline(pdev)) + wait_event_timeout(cfg->limbo_waitq, + !pci_channel_offline(pdev), + CXLFLASH_PCI_ERROR_RECOVERY_TIMEOUT); +} + +/* + * Host attributes + */ +static DEVICE_ATTR(port0, S_IRUGO, cxlflash_show_port_status, NULL); +static DEVICE_ATTR(port1, S_IRUGO, cxlflash_show_port_status, NULL); +static DEVICE_ATTR(lun_mode, S_IRUGO | S_IWUSR, cxlflash_show_lun_mode, + cxlflash_store_lun_mode); +static DEVICE_ATTR(ioctl_version, S_IRUGO, cxlflash_show_ioctl_version, NULL); + +static struct device_attribute *cxlflash_host_attrs[] = { + &dev_attr_port0, + &dev_attr_port1, + &dev_attr_lun_mode, + &dev_attr_ioctl_version, + NULL +}; + +/* + * Device attributes + */ +static DEVICE_ATTR(mode, S_IRUGO, cxlflash_show_dev_mode, NULL); + +static struct device_attribute *cxlflash_dev_attrs[] = { + &dev_attr_mode, + NULL +}; + +/* + * Host template + */ +static struct scsi_host_template driver_template = { + .module = THIS_MODULE, + .name = CXLFLASH_ADAPTER_NAME, + .info = cxlflash_driver_info, + .ioctl = cxlflash_ioctl, + .proc_name = CXLFLASH_NAME, + .queuecommand = cxlflash_queuecommand, + .eh_device_reset_handler = cxlflash_eh_device_reset_handler, + .eh_host_reset_handler = cxlflash_eh_host_reset_handler, + .change_queue_depth = cxlflash_change_queue_depth, + .cmd_per_lun = 16, + .can_queue = CXLFLASH_MAX_CMDS, + .this_id = -1, + .sg_tablesize = SG_NONE, /* No scatter gather support. */ + .max_sectors = CXLFLASH_MAX_SECTORS, + .use_clustering = ENABLE_CLUSTERING, + .shost_attrs = cxlflash_host_attrs, + .sdev_attrs = cxlflash_dev_attrs, +}; + +/* + * Device dependent values + */ +static struct dev_dependent_vals dev_corsa_vals = { CXLFLASH_MAX_SECTORS }; + +/* + * PCI device binding table + */ +static struct pci_device_id cxlflash_pci_table[] = { + {PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CORSA, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, (kernel_ulong_t)&dev_corsa_vals}, + {} +}; + +MODULE_DEVICE_TABLE(pci, cxlflash_pci_table); + +/** + * free_mem() - free memory associated with the AFU + * @cxlflash: Internal structure associated with the host. + */ +static void free_mem(struct cxlflash_cfg *cfg) +{ + int i; + char *buf = NULL; + struct afu *afu = cfg->afu; + + if (cfg->afu) { + for (i = 0; i < CXLFLASH_NUM_CMDS; i++) { + buf = afu->cmd[i].buf; + if (!((u64)buf & (PAGE_SIZE - 1))) + free_page((ulong)buf); + } + + free_pages((ulong)afu, get_order(sizeof(struct afu))); + cfg->afu = NULL; + } +} + +/** + * stop_afu() - stops the AFU command timers and unmaps the MMIO space + * @cxlflash: Internal structure associated with the host. + * + * Safe to call with AFU in a partially allocated/initialized state. + */ +static void stop_afu(struct cxlflash_cfg *cfg) +{ + int i; + struct afu *afu = cfg->afu; + + if (likely(afu)) { + for (i = 0; i < CXLFLASH_NUM_CMDS; i++) + complete(&afu->cmd[i].cevent); + + if (likely(afu->afu_map)) { + cxl_psa_unmap((void *)afu->afu_map); + afu->afu_map = NULL; + } + } +} + +/** + * term_mc() - terminates the master context + * @cxlflash: Internal structure associated with the host. + * @level: Depth of allocation, where to begin waterfall tear down. + * + * Safe to call with AFU/MC in partially allocated/initialized state. + */ +static void term_mc(struct cxlflash_cfg *cfg, enum undo_level level) +{ + int rc = 0; + struct afu *afu = cfg->afu; + + if (!afu || !cfg->mcctx) { + pr_err("%s: returning from term_mc with NULL afu or MC\n", + __func__); + return; + } + + switch (level) { + case UNDO_START: + rc = cxl_stop_context(cfg->mcctx); + BUG_ON(rc); + case UNMAP_THREE: + cxl_unmap_afu_irq(cfg->mcctx, 3, afu); + case UNMAP_TWO: + cxl_unmap_afu_irq(cfg->mcctx, 2, afu); + case UNMAP_ONE: + cxl_unmap_afu_irq(cfg->mcctx, 1, afu); + case FREE_IRQ: + cxl_free_afu_irqs(cfg->mcctx); + case RELEASE_CONTEXT: + cfg->mcctx = NULL; + } +} + +/** + * term_afu() - terminates the AFU + * @cxlflash: Internal structure associated with the host. + * + * Safe to call with AFU/MC in partially allocated/initialized state. + */ +static void term_afu(struct cxlflash_cfg *cfg) +{ + term_mc(cfg, UNDO_START); + + if (cfg->afu) + stop_afu(cfg); + + pr_debug("%s: returning\n", __func__); +} + +/** + * cxlflash_remove() - PCI entry point to tear down host + * @pdev: PCI device associated with the host. + * + * Safe to use as a cleanup in partially allocated/initialized state. + */ +static void cxlflash_remove(struct pci_dev *pdev) +{ + struct cxlflash_cfg *cfg = pci_get_drvdata(pdev); + ulong lock_flags; + + /* If a Task Management Function is active, wait for it to complete + * before continuing with remove. + */ + spin_lock_irqsave(&cfg->tmf_waitq.lock, lock_flags); + if (cfg->tmf_active) + wait_event_interruptible_locked_irq(cfg->tmf_waitq, + !cfg->tmf_active); + spin_unlock_irqrestore(&cfg->tmf_waitq.lock, lock_flags); + + cfg->state = STATE_FAILTERM; + cxlflash_stop_term_user_contexts(cfg); + + switch (cfg->init_state) { + case INIT_STATE_SCSI: + cxlflash_term_local_luns(cfg); + scsi_remove_host(cfg->host); + scsi_host_put(cfg->host); + /* Fall through */ + case INIT_STATE_AFU: + term_afu(cfg); + case INIT_STATE_PCI: + pci_release_regions(cfg->dev); + pci_disable_device(pdev); + case INIT_STATE_NONE: + flush_work(&cfg->work_q); + free_mem(cfg); + break; + } + + pr_debug("%s: returning\n", __func__); +} + +/** + * alloc_mem() - allocates the AFU and its command pool + * @cxlflash: Internal structure associated with the host. + * + * A partially allocated state remains on failure. + * + * Return: + * 0 on success + * -ENOMEM on failure to allocate memory + */ +static int alloc_mem(struct cxlflash_cfg *cfg) +{ + int rc = 0; + int i; + char *buf = NULL; + + /* This allocation is about 12K, i.e. only 1 64k page + * and upto 4 4k pages + */ + cfg->afu = (void *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, + get_order(sizeof(struct afu))); + if (unlikely(!cfg->afu)) { + pr_err("%s: cannot get %d free pages\n", + __func__, get_order(sizeof(struct afu))); + rc = -ENOMEM; + goto out; + } + cfg->afu->parent = cfg; + cfg->afu->afu_map = NULL; + + for (i = 0; i < CXLFLASH_NUM_CMDS; buf += CMD_BUFSIZE, i++) { + if (!((u64)buf & (PAGE_SIZE - 1))) { + buf = (void *)__get_free_page(GFP_KERNEL | __GFP_ZERO); + if (unlikely(!buf)) { + pr_err("%s: Allocate command buffers fail!\n", + __func__); + rc = -ENOMEM; + free_mem(cfg); + goto out; + } + } + + cfg->afu->cmd[i].buf = buf; + atomic_set(&cfg->afu->cmd[i].free, 1); + cfg->afu->cmd[i].slot = i; + } + +out: + return rc; +} + +/** + * init_pci() - initializes the host as a PCI device + * @cxlflash: Internal structure associated with the host. + * + * Return: + * 0 on success + * -EIO on unable to communicate with device + * A return code from the PCI sub-routines + */ +static int init_pci(struct cxlflash_cfg *cfg) +{ + struct pci_dev *pdev = cfg->dev; + int rc = 0; + + cfg->cxlflash_regs_pci = pci_resource_start(pdev, 0); + rc = pci_request_regions(pdev, CXLFLASH_NAME); + if (rc < 0) { + dev_err(&pdev->dev, + "%s: Couldn't register memory range of registers\n", + __func__); + goto out; + } + + rc = pci_enable_device(pdev); + if (rc || pci_channel_offline(pdev)) { + if (pci_channel_offline(pdev)) { + cxlflash_wait_for_pci_err_recovery(cfg); + rc = pci_enable_device(pdev); + } + + if (rc) { + dev_err(&pdev->dev, "%s: Cannot enable adapter\n", + __func__); + cxlflash_wait_for_pci_err_recovery(cfg); + goto out_release_regions; + } + } + + rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); + if (rc < 0) { + dev_dbg(&pdev->dev, "%s: Failed to set 64 bit PCI DMA mask\n", + __func__); + rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); + } + + if (rc < 0) { + dev_err(&pdev->dev, "%s: Failed to set PCI DMA mask\n", + __func__); + goto out_disable; + } + + pci_set_master(pdev); + + if (pci_channel_offline(pdev)) { + cxlflash_wait_for_pci_err_recovery(cfg); + if (pci_channel_offline(pdev)) { + rc = -EIO; + goto out_msi_disable; + } + } + + rc = pci_save_state(pdev); + + if (rc != PCIBIOS_SUCCESSFUL) { + dev_err(&pdev->dev, "%s: Failed to save PCI config space\n", + __func__); + rc = -EIO; + goto cleanup_nolog; + } + +out: + pr_debug("%s: returning rc=%d\n", __func__, rc); + return rc; + +cleanup_nolog: +out_msi_disable: + cxlflash_wait_for_pci_err_recovery(cfg); +out_disable: + pci_disable_device(pdev); +out_release_regions: + pci_release_regions(pdev); + goto out; + +} + +/** + * init_scsi() - adds the host to the SCSI stack and kicks off host scan + * @cxlflash: Internal structure associated with the host. + * + * Return: + * 0 on success + * A return code from adding the host + */ +static int init_scsi(struct cxlflash_cfg *cfg) +{ + struct pci_dev *pdev = cfg->dev; + int rc = 0; + + rc = scsi_add_host(cfg->host, &pdev->dev); + if (rc) { + dev_err(&pdev->dev, "%s: scsi_add_host failed (rc=%d)\n", + __func__, rc); + goto out; + } + + scsi_scan_host(cfg->host); + +out: + pr_debug("%s: returning rc=%d\n", __func__, rc); + return rc; +} + +/** + * set_port_online() - transitions the specified host FC port to online state + * @fc_regs: Top of MMIO region defined for specified port. + * + * The provided MMIO region must be mapped prior to call. Online state means + * that the FC link layer has synced, completed the handshaking process, and + * is ready for login to start. + */ +static void set_port_online(u64 *fc_regs) +{ + u64 cmdcfg; + + cmdcfg = readq_be(&fc_regs[FC_MTIP_CMDCONFIG / 8]); + cmdcfg &= (~FC_MTIP_CMDCONFIG_OFFLINE); /* clear OFF_LINE */ + cmdcfg |= (FC_MTIP_CMDCONFIG_ONLINE); /* set ON_LINE */ + writeq_be(cmdcfg, &fc_regs[FC_MTIP_CMDCONFIG / 8]); +} + +/** + * set_port_offline() - transitions the specified host FC port to offline state + * @fc_regs: Top of MMIO region defined for specified port. + * + * The provided MMIO region must be mapped prior to call. + */ +static void set_port_offline(u64 *fc_regs) +{ + u64 cmdcfg; + + cmdcfg = readq_be(&fc_regs[FC_MTIP_CMDCONFIG / 8]); + cmdcfg &= (~FC_MTIP_CMDCONFIG_ONLINE); /* clear ON_LINE */ + cmdcfg |= (FC_MTIP_CMDCONFIG_OFFLINE); /* set OFF_LINE */ + writeq_be(cmdcfg, &fc_regs[FC_MTIP_CMDCONFIG / 8]); +} + +/** + * wait_port_online() - waits for the specified host FC port come online + * @fc_regs: Top of MMIO region defined for specified port. + * @delay_us: Number of microseconds to delay between reading port status. + * @nretry: Number of cycles to retry reading port status. + * + * The provided MMIO region must be mapped prior to call. This will timeout + * when the cable is not plugged in. + * + * Return: + * TRUE (1) when the specified port is online + * FALSE (0) when the specified port fails to come online after timeout + * -EINVAL when @delay_us is less than 1000 + */ +static int wait_port_online(u64 *fc_regs, u32 delay_us, u32 nretry) +{ + u64 status; + + if (delay_us < 1000) { + pr_err("%s: invalid delay specified %d\n", __func__, delay_us); + return -EINVAL; + } + + do { + msleep(delay_us / 1000); + status = readq_be(&fc_regs[FC_MTIP_STATUS / 8]); + } while ((status & FC_MTIP_STATUS_MASK) != FC_MTIP_STATUS_ONLINE && + nretry--); + + return ((status & FC_MTIP_STATUS_MASK) == FC_MTIP_STATUS_ONLINE); +} + +/** + * wait_port_offline() - waits for the specified host FC port go offline + * @fc_regs: Top of MMIO region defined for specified port. + * @delay_us: Number of microseconds to delay between reading port status. + * @nretry: Number of cycles to retry reading port status. + * + * The provided MMIO region must be mapped prior to call. + * + * Return: + * TRUE (1) when the specified port is offline + * FALSE (0) when the specified port fails to go offline after timeout + * -EINVAL when @delay_us is less than 1000 + */ +static int wait_port_offline(u64 *fc_regs, u32 delay_us, u32 nretry) +{ + u64 status; + + if (delay_us < 1000) { + pr_err("%s: invalid delay specified %d\n", __func__, delay_us); + return -EINVAL; + } + + do { + msleep(delay_us / 1000); + status = readq_be(&fc_regs[FC_MTIP_STATUS / 8]); + } while ((status & FC_MTIP_STATUS_MASK) != FC_MTIP_STATUS_OFFLINE && + nretry--); + + return ((status & FC_MTIP_STATUS_MASK) == FC_MTIP_STATUS_OFFLINE); +} + +/** + * afu_set_wwpn() - configures the WWPN for the specified host FC port + * @afu: AFU associated with the host that owns the specified FC port. + * @port: Port number being configured. + * @fc_regs: Top of MMIO region defined for specified port. + * @wwpn: The world-wide-port-number previously discovered for port. + * + * The provided MMIO region must be mapped prior to call. As part of the + * sequence to configure the WWPN, the port is toggled offline and then back + * online. This toggling action can cause this routine to delay up to a few + * seconds. When configured to use the internal LUN feature of the AFU, a + * failure to come online is overridden. + * + * Return: + * 0 when the WWPN is successfully written and the port comes back online + * -1 when the port fails to go offline or come back up online + */ +static int afu_set_wwpn(struct afu *afu, int port, u64 *fc_regs, u64 wwpn) +{ + int ret = 0; + + set_port_offline(fc_regs); + + if (!wait_port_offline(fc_regs, FC_PORT_STATUS_RETRY_INTERVAL_US, + FC_PORT_STATUS_RETRY_CNT)) { + pr_debug("%s: wait on port %d to go offline timed out\n", + __func__, port); + ret = -1; /* but continue on to leave the port back online */ + } + + if (ret == 0) + writeq_be(wwpn, &fc_regs[FC_PNAME / 8]); + + set_port_online(fc_regs); + + if (!wait_port_online(fc_regs, FC_PORT_STATUS_RETRY_INTERVAL_US, + FC_PORT_STATUS_RETRY_CNT)) { + pr_debug("%s: wait on port %d to go online timed out\n", + __func__, port); + ret = -1; + + /* + * Override for internal lun!!! + */ + if (afu->internal_lun) { + pr_debug("%s: Overriding port %d online timeout!!!\n", + __func__, port); + ret = 0; + } + } + + pr_debug("%s: returning rc=%d\n", __func__, ret); + + return ret; +} + +/** + * afu_link_reset() - resets the specified host FC port + * @afu: AFU associated with the host that owns the specified FC port. + * @port: Port number being configured. + * @fc_regs: Top of MMIO region defined for specified port. + * + * The provided MMIO region must be mapped prior to call. The sequence to + * reset the port involves toggling it offline and then back online. This + * action can cause this routine to delay up to a few seconds. An effort + * is made to maintain link with the device by switching to host to use + * the alternate port exclusively while the reset takes place. + * failure to come online is overridden. + */ +static void afu_link_reset(struct afu *afu, int port, u64 *fc_regs) +{ + u64 port_sel; + + /* first switch the AFU to the other links, if any */ + port_sel = readq_be(&afu->afu_map->global.regs.afu_port_sel); + port_sel &= ~(1ULL << port); + writeq_be(port_sel, &afu->afu_map->global.regs.afu_port_sel); + cxlflash_afu_sync(afu, 0, 0, AFU_GSYNC); + + set_port_offline(fc_regs); + if (!wait_port_offline(fc_regs, FC_PORT_STATUS_RETRY_INTERVAL_US, + FC_PORT_STATUS_RETRY_CNT)) + pr_err("%s: wait on port %d to go offline timed out\n", + __func__, port); + + set_port_online(fc_regs); + if (!wait_port_online(fc_regs, FC_PORT_STATUS_RETRY_INTERVAL_US, + FC_PORT_STATUS_RETRY_CNT)) + pr_err("%s: wait on port %d to go online timed out\n", + __func__, port); + + /* switch back to include this port */ + port_sel |= (1ULL << port); + writeq_be(port_sel, &afu->afu_map->global.regs.afu_port_sel); + cxlflash_afu_sync(afu, 0, 0, AFU_GSYNC); + + pr_debug("%s: returning port_sel=%lld\n", __func__, port_sel); +} + +/* + * Asynchronous interrupt information table + */ +static const struct asyc_intr_info ainfo[] = { + {SISL_ASTATUS_FC0_OTHER, "other error", 0, CLR_FC_ERROR | LINK_RESET}, + {SISL_ASTATUS_FC0_LOGO, "target initiated LOGO", 0, 0}, + {SISL_ASTATUS_FC0_CRC_T, "CRC threshold exceeded", 0, LINK_RESET}, + {SISL_ASTATUS_FC0_LOGI_R, "login timed out, retrying", 0, 0}, + {SISL_ASTATUS_FC0_LOGI_F, "login failed", 0, CLR_FC_ERROR}, + {SISL_ASTATUS_FC0_LOGI_S, "login succeeded", 0, 0}, + {SISL_ASTATUS_FC0_LINK_DN, "link down", 0, 0}, + {SISL_ASTATUS_FC0_LINK_UP, "link up", 0, 0}, + {SISL_ASTATUS_FC1_OTHER, "other error", 1, CLR_FC_ERROR | LINK_RESET}, + {SISL_ASTATUS_FC1_LOGO, "target initiated LOGO", 1, 0}, + {SISL_ASTATUS_FC1_CRC_T, "CRC threshold exceeded", 1, LINK_RESET}, + {SISL_ASTATUS_FC1_LOGI_R, "login timed out, retrying", 1, 0}, + {SISL_ASTATUS_FC1_LOGI_F, "login failed", 1, CLR_FC_ERROR}, + {SISL_ASTATUS_FC1_LOGI_S, "login succeeded", 1, 0}, + {SISL_ASTATUS_FC1_LINK_DN, "link down", 1, 0}, + {SISL_ASTATUS_FC1_LINK_UP, "link up", 1, 0}, + {0x0, "", 0, 0} /* terminator */ +}; + +/** + * find_ainfo() - locates and returns asynchronous interrupt information + * @status: Status code set by AFU on error. + * + * Return: The located information or NULL when the status code is invalid. + */ +static const struct asyc_intr_info *find_ainfo(u64 status) +{ + const struct asyc_intr_info *info; + + for (info = &ainfo[0]; info->status; info++) + if (info->status == status) + return info; + + return NULL; +} + +/** + * afu_err_intr_init() - clears and initializes the AFU for error interrupts + * @afu: AFU associated with the host. + */ +static void afu_err_intr_init(struct afu *afu) +{ + int i; + u64 reg; + + /* global async interrupts: AFU clears afu_ctrl on context exit + * if async interrupts were sent to that context. This prevents + * the AFU form sending further async interrupts when + * there is + * nobody to receive them. + */ + + /* mask all */ + writeq_be(-1ULL, &afu->afu_map->global.regs.aintr_mask); + /* set LISN# to send and point to master context */ + reg = ((u64) (((afu->ctx_hndl << 8) | SISL_MSI_ASYNC_ERROR)) << 40); + + if (afu->internal_lun) + reg |= 1; /* Bit 63 indicates local lun */ + writeq_be(reg, &afu->afu_map->global.regs.afu_ctrl); + /* clear all */ + writeq_be(-1ULL, &afu->afu_map->global.regs.aintr_clear); + /* unmask bits that are of interest */ + /* note: afu can send an interrupt after this step */ + writeq_be(SISL_ASTATUS_MASK, &afu->afu_map->global.regs.aintr_mask); + /* clear again in case a bit came on after previous clear but before */ + /* unmask */ + writeq_be(-1ULL, &afu->afu_map->global.regs.aintr_clear); + + /* Clear/Set internal lun bits */ + reg = readq_be(&afu->afu_map->global.fc_regs[0][FC_CONFIG2 / 8]); + reg &= SISL_FC_INTERNAL_MASK; + if (afu->internal_lun) + reg |= ((u64)(afu->internal_lun - 1) << SISL_FC_INTERNAL_SHIFT); + writeq_be(reg, &afu->afu_map->global.fc_regs[0][FC_CONFIG2 / 8]); + + /* now clear FC errors */ + for (i = 0; i < NUM_FC_PORTS; i++) { + writeq_be(0xFFFFFFFFU, + &afu->afu_map->global.fc_regs[i][FC_ERROR / 8]); + writeq_be(0, &afu->afu_map->global.fc_regs[i][FC_ERRCAP / 8]); + } + + /* sync interrupts for master's IOARRIN write */ + /* note that unlike asyncs, there can be no pending sync interrupts */ + /* at this time (this is a fresh context and master has not written */ + /* IOARRIN yet), so there is nothing to clear. */ + + /* set LISN#, it is always sent to the context that wrote IOARRIN */ + writeq_be(SISL_MSI_SYNC_ERROR, &afu->host_map->ctx_ctrl); + writeq_be(SISL_ISTATUS_MASK, &afu->host_map->intr_mask); +} + +/** + * cxlflash_sync_err_irq() - interrupt handler for synchronous errors + * @irq: Interrupt number. + * @data: Private data provided at interrupt registration, the AFU. + * + * Return: Always return IRQ_HANDLED. + */ +static irqreturn_t cxlflash_sync_err_irq(int irq, void *data) +{ + struct afu *afu = (struct afu *)data; + u64 reg; + u64 reg_unmasked; + + reg = readq_be(&afu->host_map->intr_status); + reg_unmasked = (reg & SISL_ISTATUS_UNMASK); + + if (reg_unmasked == 0UL) { + pr_err("%s: %llX: spurious interrupt, intr_status %016llX\n", + __func__, (u64)afu, reg); + goto cxlflash_sync_err_irq_exit; + } + + pr_err("%s: %llX: unexpected interrupt, intr_status %016llX\n", + __func__, (u64)afu, reg); + + writeq_be(reg_unmasked, &afu->host_map->intr_clear); + +cxlflash_sync_err_irq_exit: + pr_debug("%s: returning rc=%d\n", __func__, IRQ_HANDLED); + return IRQ_HANDLED; +} + +/** + * cxlflash_rrq_irq() - interrupt handler for read-response queue (normal path) + * @irq: Interrupt number. + * @data: Private data provided at interrupt registration, the AFU. + * + * Return: Always return IRQ_HANDLED. + */ +static irqreturn_t cxlflash_rrq_irq(int irq, void *data) +{ + struct afu *afu = (struct afu *)data; + struct afu_cmd *cmd; + bool toggle = afu->toggle; + u64 entry, + *hrrq_start = afu->hrrq_start, + *hrrq_end = afu->hrrq_end, + *hrrq_curr = afu->hrrq_curr; + + /* Process however many RRQ entries that are ready */ + while (true) { + entry = *hrrq_curr; + + if ((entry & SISL_RESP_HANDLE_T_BIT) != toggle) + break; + + cmd = (struct afu_cmd *)(entry & ~SISL_RESP_HANDLE_T_BIT); + cmd_complete(cmd); + + /* Advance to next entry or wrap and flip the toggle bit */ + if (hrrq_curr < hrrq_end) + hrrq_curr++; + else { + hrrq_curr = hrrq_start; + toggle ^= SISL_RESP_HANDLE_T_BIT; + } + } + + afu->hrrq_curr = hrrq_curr; + afu->toggle = toggle; + + return IRQ_HANDLED; +} + +/** + * cxlflash_async_err_irq() - interrupt handler for asynchronous errors + * @irq: Interrupt number. + * @data: Private data provided at interrupt registration, the AFU. + * + * Return: Always return IRQ_HANDLED. + */ +static irqreturn_t cxlflash_async_err_irq(int irq, void *data) +{ + struct afu *afu = (struct afu *)data; + struct cxlflash_cfg *cfg; + u64 reg_unmasked; + const struct asyc_intr_info *info; + struct sisl_global_map *global = &afu->afu_map->global; + u64 reg; + u8 port; + int i; + + cfg = afu->parent; + + reg = readq_be(&global->regs.aintr_status); + reg_unmasked = (reg & SISL_ASTATUS_UNMASK); + + if (reg_unmasked == 0) { + pr_err("%s: spurious interrupt, aintr_status 0x%016llX\n", + __func__, reg); + goto out; + } + + /* it is OK to clear AFU status before FC_ERROR */ + writeq_be(reg_unmasked, &global->regs.aintr_clear); + + /* check each bit that is on */ + for (i = 0; reg_unmasked; i++, reg_unmasked = (reg_unmasked >> 1)) { + info = find_ainfo(1ULL << i); + if ((reg_unmasked & 0x1) || !info) + continue; + + port = info->port; + + pr_err("%s: FC Port %d -> %s, fc_status 0x%08llX\n", + __func__, port, info->desc, + readq_be(&global->fc_regs[port][FC_STATUS / 8])); + + /* + * do link reset first, some OTHER errors will set FC_ERROR + * again if cleared before or w/o a reset + */ + if (info->action & LINK_RESET) { + pr_err("%s: FC Port %d: resetting link\n", + __func__, port); + cfg->lr_state = LINK_RESET_REQUIRED; + cfg->lr_port = port; + schedule_work(&cfg->work_q); + } + + if (info->action & CLR_FC_ERROR) { + reg = readq_be(&global->fc_regs[port][FC_ERROR / 8]); + + /* + * since all errors are unmasked, FC_ERROR and FC_ERRCAP + * should be the same and tracing one is sufficient. + */ + + pr_err("%s: fc %d: clearing fc_error 0x%08llX\n", + __func__, port, reg); + + writeq_be(reg, &global->fc_regs[port][FC_ERROR / 8]); + writeq_be(0, &global->fc_regs[port][FC_ERRCAP / 8]); + } + } + +out: + pr_debug("%s: returning rc=%d, afu=%p\n", __func__, IRQ_HANDLED, afu); + return IRQ_HANDLED; +} + +/** + * start_context() - starts the master context + * @cxlflash: Internal structure associated with the host. + * + * Return: A success or failure value from CXL services. + */ +static int start_context(struct cxlflash_cfg *cfg) +{ + int rc = 0; + + rc = cxl_start_context(cfg->mcctx, + cfg->afu->work.work_element_descriptor, + NULL); + + pr_debug("%s: returning rc=%d\n", __func__, rc); + return rc; +} + +/** + * read_vpd() - obtains the WWPNs from VPD + * @cxlflash: Internal structure associated with the host. + * @wwpn: Array of size NUM_FC_PORTS to pass back WWPNs + * + * Return: + * 0 on success + * -ENODEV when VPD or WWPN keywords not found + */ +static int read_vpd(struct cxlflash_cfg *cfg, u64 wwpn[]) +{ + struct pci_dev *dev = cfg->parent_dev; + int rc = 0; + int ro_start, ro_size, i, j, k; + ssize_t vpd_size; + char vpd_data[CXLFLASH_VPD_LEN]; + char tmp_buf[WWPN_BUF_LEN] = { 0 }; + char *wwpn_vpd_tags[NUM_FC_PORTS] = { "V5", "V6" }; + + /* Get the VPD data from the device */ + vpd_size = pci_read_vpd(dev, 0, sizeof(vpd_data), vpd_data); + if (unlikely(vpd_size <= 0)) { + pr_err("%s: Unable to read VPD (size = %ld)\n", + __func__, vpd_size); + rc = -ENODEV; + goto out; + } + + /* Get the read only section offset */ + ro_start = pci_vpd_find_tag(vpd_data, 0, vpd_size, + PCI_VPD_LRDT_RO_DATA); + if (unlikely(ro_start < 0)) { + pr_err("%s: VPD Read-only data not found\n", __func__); + rc = -ENODEV; + goto out; + } + + /* Get the read only section size, cap when extends beyond read VPD */ + ro_size = pci_vpd_lrdt_size(&vpd_data[ro_start]); + j = ro_size; + i = ro_start + PCI_VPD_LRDT_TAG_SIZE; + if (unlikely((i + j) > vpd_size)) { + pr_debug("%s: Might need to read more VPD (%d > %ld)\n", + __func__, (i + j), vpd_size); + ro_size = vpd_size - i; + } + + /* + * Find the offset of the WWPN tag within the read only + * VPD data and validate the found field (partials are + * no good to us). Convert the ASCII data to an integer + * value. Note that we must copy to a temporary buffer + * because the conversion service requires that the ASCII + * string be terminated. + */ + for (k = 0; k < NUM_FC_PORTS; k++) { + j = ro_size; + i = ro_start + PCI_VPD_LRDT_TAG_SIZE; + + i = pci_vpd_find_info_keyword(vpd_data, i, j, wwpn_vpd_tags[k]); + if (unlikely(i < 0)) { + pr_err("%s: Port %d WWPN not found in VPD\n", + __func__, k); + rc = -ENODEV; + goto out; + } + + j = pci_vpd_info_field_size(&vpd_data[i]); + i += PCI_VPD_INFO_FLD_HDR_SIZE; + if (unlikely((i + j > vpd_size) || (j != WWPN_LEN))) { + pr_err("%s: Port %d WWPN incomplete or VPD corrupt\n", + __func__, k); + rc = -ENODEV; + goto out; + } + + memcpy(tmp_buf, &vpd_data[i], WWPN_LEN); + rc = kstrtoul(tmp_buf, WWPN_LEN, (ulong *)&wwpn[k]); + if (unlikely(rc)) { + pr_err("%s: Fail to convert port %d WWPN to integer\n", + __func__, k); + rc = -ENODEV; + goto out; + } + } + +out: + pr_debug("%s: returning rc=%d\n", __func__, rc); + return rc; +} + +/** + * cxlflash_context_reset() - timeout handler for AFU commands + * @cmd: AFU command that timed out. + * + * Sends a reset to the AFU. + */ +void cxlflash_context_reset(struct afu_cmd *cmd) +{ + int nretry = 0; + u64 rrin = 0x1; + u64 room = 0; + struct afu *afu = cmd->parent; + ulong lock_flags; + + pr_debug("%s: cmd=%p\n", __func__, cmd); + + spin_lock_irqsave(&cmd->slock, lock_flags); + + /* Already completed? */ + if (cmd->sa.host_use_b[0] & B_DONE) { + spin_unlock_irqrestore(&cmd->slock, lock_flags); + return; + } + + cmd->sa.host_use_b[0] |= (B_DONE | B_ERROR | B_TIMEOUT); + spin_unlock_irqrestore(&cmd->slock, lock_flags); + + /* + * We really want to send this reset at all costs, so spread + * out wait time on successive retries for available room. + */ + do { + room = readq_be(&afu->host_map->cmd_room); + atomic64_set(&afu->room, room); + if (room) + goto write_rrin; + udelay(nretry); + } while (nretry++ < MC_ROOM_RETRY_CNT); + + pr_err("%s: no cmd_room to send reset\n", __func__); + return; + +write_rrin: + nretry = 0; + writeq_be(rrin, &afu->host_map->ioarrin); + do { + rrin = readq_be(&afu->host_map->ioarrin); + if (rrin != 0x1) + break; + /* Double delay each time */ + udelay(2 ^ nretry); + } while (nretry++ < MC_ROOM_RETRY_CNT); +} + +/** + * init_pcr() - initialize the provisioning and control registers + * @cxlflash: Internal structure associated with the host. + * + * Also sets up fast access to the mapped registers and initializes AFU + * command fields that never change. + */ +void init_pcr(struct cxlflash_cfg *cfg) +{ + struct afu *afu = cfg->afu; + struct sisl_ctrl_map *ctrl_map; + int i; + + for (i = 0; i < MAX_CONTEXT; i++) { + ctrl_map = &afu->afu_map->ctrls[i].ctrl; + /* disrupt any clients that could be running */ + /* e. g. clients that survived a master restart */ + writeq_be(0, &ctrl_map->rht_start); + writeq_be(0, &ctrl_map->rht_cnt_id); + writeq_be(0, &ctrl_map->ctx_cap); + } + + /* copy frequently used fields into afu */ + afu->ctx_hndl = (u16) cxl_process_element(cfg->mcctx); + /* ctx_hndl is 16 bits in CAIA */ + afu->host_map = &afu->afu_map->hosts[afu->ctx_hndl].host; + afu->ctrl_map = &afu->afu_map->ctrls[afu->ctx_hndl].ctrl; + + /* Program the Endian Control for the master context */ + writeq_be(SISL_ENDIAN_CTRL, &afu->host_map->endian_ctrl); + + /* initialize cmd fields that never change */ + for (i = 0; i < CXLFLASH_NUM_CMDS; i++) { + afu->cmd[i].rcb.ctx_id = afu->ctx_hndl; + afu->cmd[i].rcb.msi = SISL_MSI_RRQ_UPDATED; + afu->cmd[i].rcb.rrq = 0x0; + } +} + +/** + * init_global() - initialize AFU global registers + * @cxlflash: Internal structure associated with the host. + */ +int init_global(struct cxlflash_cfg *cfg) +{ + struct afu *afu = cfg->afu; + u64 wwpn[NUM_FC_PORTS]; /* wwpn of AFU ports */ + int i = 0, num_ports = 0; + int rc = 0; + u64 reg; + + rc = read_vpd(cfg, &wwpn[0]); + if (rc) { + pr_err("%s: could not read vpd rc=%d\n", __func__, rc); + goto out; + } + + pr_debug("%s: wwpn0=0x%llX wwpn1=0x%llX\n", __func__, wwpn[0], wwpn[1]); + + /* set up RRQ in AFU for master issued cmds */ + writeq_be((u64) afu->hrrq_start, &afu->host_map->rrq_start); + writeq_be((u64) afu->hrrq_end, &afu->host_map->rrq_end); + + /* AFU configuration */ + reg = readq_be(&afu->afu_map->global.regs.afu_config); + reg |= SISL_AFUCONF_AR_ALL|SISL_AFUCONF_ENDIAN; + /* enable all auto retry options and control endianness */ + /* leave others at default: */ + /* CTX_CAP write protected, mbox_r does not clear on read and */ + /* checker on if dual afu */ + writeq_be(reg, &afu->afu_map->global.regs.afu_config); + + /* global port select: select either port */ + if (afu->internal_lun) { + /* only use port 0 */ + writeq_be(PORT0, &afu->afu_map->global.regs.afu_port_sel); + num_ports = NUM_FC_PORTS - 1; + } else { + writeq_be(BOTH_PORTS, &afu->afu_map->global.regs.afu_port_sel); + num_ports = NUM_FC_PORTS; + } + + for (i = 0; i < num_ports; i++) { + /* unmask all errors (but they are still masked at AFU) */ + writeq_be(0, &afu->afu_map->global.fc_regs[i][FC_ERRMSK / 8]); + /* clear CRC error cnt & set a threshold */ + (void)readq_be(&afu->afu_map->global. + fc_regs[i][FC_CNT_CRCERR / 8]); + writeq_be(MC_CRC_THRESH, &afu->afu_map->global.fc_regs[i] + [FC_CRC_THRESH / 8]); + + /* set WWPNs. If already programmed, wwpn[i] is 0 */ + if (wwpn[i] != 0 && + afu_set_wwpn(afu, i, + &afu->afu_map->global.fc_regs[i][0], + wwpn[i])) { + pr_err("%s: failed to set WWPN on port %d\n", + __func__, i); + rc = -EIO; + goto out; + } + /* Programming WWPN back to back causes additional + * offline/online transitions and a PLOGI + */ + msleep(100); + + } + + /* set up master's own CTX_CAP to allow real mode, host translation */ + /* tbls, afu cmds and read/write GSCSI cmds. */ + /* First, unlock ctx_cap write by reading mbox */ + (void)readq_be(&afu->ctrl_map->mbox_r); /* unlock ctx_cap */ + writeq_be((SISL_CTX_CAP_REAL_MODE | SISL_CTX_CAP_HOST_XLATE | + SISL_CTX_CAP_READ_CMD | SISL_CTX_CAP_WRITE_CMD | + SISL_CTX_CAP_AFU_CMD | SISL_CTX_CAP_GSCSI_CMD), + &afu->ctrl_map->ctx_cap); + /* init heartbeat */ + afu->hb = readq_be(&afu->afu_map->global.regs.afu_hb); + +out: + return rc; +} + +/** + * start_afu() - initializes and starts the AFU + * @cxlflash: Internal structure associated with the host. + */ +static int start_afu(struct cxlflash_cfg *cfg) +{ + struct afu *afu = cfg->afu; + struct afu_cmd *cmd; + + int i = 0; + int rc = 0; + + for (i = 0; i < CXLFLASH_NUM_CMDS; i++) { + cmd = &afu->cmd[i]; + + init_completion(&cmd->cevent); + spin_lock_init(&cmd->slock); + cmd->parent = afu; + } + + init_pcr(cfg); + + /* initialize RRQ pointers */ + afu->hrrq_start = &afu->rrq_entry[0]; + afu->hrrq_end = &afu->rrq_entry[NUM_RRQ_ENTRY - 1]; + afu->hrrq_curr = afu->hrrq_start; + afu->toggle = 1; + + rc = init_global(cfg); + + pr_debug("%s: returning rc=%d\n", __func__, rc); + return rc; +} + +/** + * init_mc() - create and register as the master context + * @cxlflash: Internal structure associated with the host. + * + * Return: + * 0 on success + * -ENOMEM when unable to obtain a context from CXL services + * A failure value from CXL services. + */ +static int init_mc(struct cxlflash_cfg *cfg) +{ + struct cxl_context *ctx; + struct device *dev = &cfg->dev->dev; + struct afu *afu = cfg->afu; + int rc = 0; + enum undo_level level; + + ctx = cxl_get_context(cfg->dev); + if (unlikely(!ctx)) + return -ENOMEM; + cfg->mcctx = ctx; + + /* Set it up as a master with the CXL */ + cxl_set_master(ctx); + + /* During initialization reset the AFU to start from a clean slate */ + rc = cxl_afu_reset(cfg->mcctx); + if (unlikely(rc)) { + dev_err(dev, "%s: initial AFU reset failed rc=%d\n", + __func__, rc); + level = RELEASE_CONTEXT; + goto out; + } + + rc = cxl_allocate_afu_irqs(ctx, 3); + if (unlikely(rc)) { + dev_err(dev, "%s: call to allocate_afu_irqs failed rc=%d!\n", + __func__, rc); + level = RELEASE_CONTEXT; + goto out; + } + + rc = cxl_map_afu_irq(ctx, 1, cxlflash_sync_err_irq, afu, + "SISL_MSI_SYNC_ERROR"); + if (unlikely(rc <= 0)) { + dev_err(dev, "%s: IRQ 1 (SISL_MSI_SYNC_ERROR) map failed!\n", + __func__); + level = FREE_IRQ; + goto out; + } + + rc = cxl_map_afu_irq(ctx, 2, cxlflash_rrq_irq, afu, + "SISL_MSI_RRQ_UPDATED"); + if (unlikely(rc <= 0)) { + dev_err(dev, "%s: IRQ 2 (SISL_MSI_RRQ_UPDATED) map failed!\n", + __func__); + level = UNMAP_ONE; + goto out; + } + + rc = cxl_map_afu_irq(ctx, 3, cxlflash_async_err_irq, afu, + "SISL_MSI_ASYNC_ERROR"); + if (unlikely(rc <= 0)) { + dev_err(dev, "%s: IRQ 3 (SISL_MSI_ASYNC_ERROR) map failed!\n", + __func__); + level = UNMAP_TWO; + goto out; + } + + rc = 0; + + /* This performs the equivalent of the CXL_IOCTL_START_WORK. + * The CXL_IOCTL_GET_PROCESS_ELEMENT is implicit in the process + * element (pe) that is embedded in the context (ctx) + */ + rc = start_context(cfg); + if (unlikely(rc)) { + dev_err(dev, "%s: start context failed rc=%d\n", __func__, rc); + level = UNMAP_THREE; + goto out; + } +ret: + pr_debug("%s: returning rc=%d\n", __func__, rc); + return rc; +out: + term_mc(cfg, level); + goto ret; +} + +/** + * init_afu() - setup as master context and start AFU + * @cxlflash: Internal structure associated with the host. + * + * This routine is a higher level of control for configuring the + * AFU on probe and reset paths. + * + * Return: + * 0 on success + * -ENOMEM when unable to map the AFU MMIO space + * A failure value from internal services. + */ +static int init_afu(struct cxlflash_cfg *cfg) +{ + u64 reg; + int rc = 0; + struct afu *afu = cfg->afu; + struct device *dev = &cfg->dev->dev; + + cxl_perst_reloads_same_image(cfg->cxl_afu, true); + + rc = init_mc(cfg); + if (rc) { + dev_err(dev, "%s: call to init_mc failed, rc=%d!\n", + __func__, rc); + goto err1; + } + + /* Map the entire MMIO space of the AFU. + */ + afu->afu_map = cxl_psa_map(cfg->mcctx); + if (!afu->afu_map) { + rc = -ENOMEM; + term_mc(cfg, UNDO_START); + dev_err(dev, "%s: call to cxl_psa_map failed!\n", __func__); + goto err1; + } + + /* don't byte reverse on reading afu_version, else the string form */ + /* will be backwards */ + reg = afu->afu_map->global.regs.afu_version; + memcpy(afu->version, ®, 8); + afu->interface_version = + readq_be(&afu->afu_map->global.regs.interface_version); + pr_debug("%s: afu version %s, interface version 0x%llX\n", + __func__, afu->version, afu->interface_version); + + rc = start_afu(cfg); + if (rc) { + dev_err(dev, "%s: call to start_afu failed, rc=%d!\n", + __func__, rc); + term_mc(cfg, UNDO_START); + cxl_psa_unmap((void *)afu->afu_map); + afu->afu_map = NULL; + goto err1; + } + + afu_err_intr_init(cfg->afu); + atomic64_set(&afu->room, readq_be(&afu->host_map->cmd_room)); + + /* Restore the LUN mappings */ + cxlflash_restore_luntable(cfg); +err1: + pr_debug("%s: returning rc=%d\n", __func__, rc); + return rc; +} + +/** + * cxlflash_send_cmd() - sends an AFU command + * @afu: AFU associated with the host. + * @cmd: AFU command to send. + * + * Return: + * 0 on success + * -1 on failure + */ +int cxlflash_send_cmd(struct afu *afu, struct afu_cmd *cmd) +{ + struct cxlflash_cfg *cfg = afu->parent; + int nretry = 0; + int rc = 0; + u64 room; + long newval; + + /* + * This routine is used by critical users such an AFU sync and to + * send a task management function (TMF). Thus we want to retry a + * bit before returning an error. To avoid the performance penalty + * of MMIO, we spread the update of 'room' over multiple commands. + */ +retry: + newval = atomic64_dec_if_positive(&afu->room); + if (!newval) { + do { + room = readq_be(&afu->host_map->cmd_room); + atomic64_set(&afu->room, room); + if (room) + goto write_ioarrin; + udelay(nretry); + } while (nretry++ < MC_ROOM_RETRY_CNT); + + pr_err("%s: no cmd_room to send 0x%X\n", + __func__, cmd->rcb.cdb[0]); + + goto no_room; + } else if (unlikely(newval < 0)) { + /* This should be rare. i.e. Only if two threads race and + * decrement before the MMIO read is done. In this case + * just benefit from the other thread having updated + * afu->room. + */ + if (nretry++ < MC_ROOM_RETRY_CNT) { + udelay(nretry); + goto retry; + } + + goto no_room; + } + +write_ioarrin: + writeq_be((u64)&cmd->rcb, &afu->host_map->ioarrin); +out: + pr_debug("%s: cmd=%p len=%d ea=%p rc=%d\n", __func__, cmd, + cmd->rcb.data_len, (void *)cmd->rcb.data_ea, rc); + return rc; + +no_room: + afu->read_room = true; + schedule_work(&cfg->work_q); + rc = SCSI_MLQUEUE_HOST_BUSY; + goto out; +} + +/** + * cxlflash_wait_resp() - polls for a response or timeout to a sent AFU command + * @afu: AFU associated with the host. + * @cmd: AFU command that was sent. + */ +void cxlflash_wait_resp(struct afu *afu, struct afu_cmd *cmd) +{ + ulong timeout = jiffies + (cmd->rcb.timeout * 2 * HZ); + + timeout = wait_for_completion_timeout(&cmd->cevent, timeout); + if (!timeout) + cxlflash_context_reset(cmd); + + if (unlikely(cmd->sa.ioasc != 0)) + pr_err("%s: CMD 0x%X failed, IOASC: flags 0x%X, afu_rc 0x%X, " + "scsi_rc 0x%X, fc_rc 0x%X\n", __func__, cmd->rcb.cdb[0], + cmd->sa.rc.flags, cmd->sa.rc.afu_rc, cmd->sa.rc.scsi_rc, + cmd->sa.rc.fc_rc); +} + +/** + * cxlflash_afu_sync() - builds and sends an AFU sync command + * @afu: AFU associated with the host. + * @ctx_hndl_u: Identifies context requesting sync. + * @res_hndl_u: Identifies resource requesting sync. + * @mode: Type of sync to issue (lightweight, heavyweight, global). + * + * The AFU can only take 1 sync command at a time. This routine enforces this + * limitation by using a mutex to provide exlusive access to the AFU during + * the sync. This design point requires calling threads to not be on interrupt + * context due to the possibility of sleeping during concurrent sync operations. + * + * AFU sync operations are only necessary and allowed when the device is + * operating normally. When not operating normally, sync requests can occur as + * part of cleaning up resources associated with an adapter prior to removal. + * In this scenario, these requests are simply ignored (safe due to the AFU + * going away). + * + * Return: + * 0 on success + * -1 on failure + */ +int cxlflash_afu_sync(struct afu *afu, ctx_hndl_t ctx_hndl_u, + res_hndl_t res_hndl_u, u8 mode) +{ + struct cxlflash_cfg *cfg = afu->parent; + struct afu_cmd *cmd = NULL; + int rc = 0; + int retry_cnt = 0; + static DEFINE_MUTEX(sync_active); + + if (cfg->state != STATE_NORMAL) { + pr_debug("%s: Sync not required! (%u)\n", __func__, cfg->state); + return 0; + } + + mutex_lock(&sync_active); +retry: + cmd = cxlflash_cmd_checkout(afu); + if (unlikely(!cmd)) { + retry_cnt++; + udelay(1000 * retry_cnt); + if (retry_cnt < MC_RETRY_CNT) + goto retry; + pr_err("%s: could not get a free command\n", __func__); + rc = -1; + goto out; + } + + pr_debug("%s: afu=%p cmd=%p %d\n", __func__, afu, cmd, ctx_hndl_u); + + memset(cmd->rcb.cdb, 0, sizeof(cmd->rcb.cdb)); + + cmd->rcb.req_flags = SISL_REQ_FLAGS_AFU_CMD; + cmd->rcb.port_sel = 0x0; /* NA */ + cmd->rcb.lun_id = 0x0; /* NA */ + cmd->rcb.data_len = 0x0; + cmd->rcb.data_ea = 0x0; + cmd->rcb.timeout = MC_AFU_SYNC_TIMEOUT; + + cmd->rcb.cdb[0] = 0xC0; /* AFU Sync */ + cmd->rcb.cdb[1] = mode; + + /* The cdb is aligned, no unaligned accessors required */ + *((u16 *)&cmd->rcb.cdb[2]) = swab16(ctx_hndl_u); + *((u32 *)&cmd->rcb.cdb[4]) = swab32(res_hndl_u); + + rc = cxlflash_send_cmd(afu, cmd); + if (unlikely(rc)) + goto out; + + cxlflash_wait_resp(afu, cmd); + + /* set on timeout */ + if (unlikely((cmd->sa.ioasc != 0) || + (cmd->sa.host_use_b[0] & B_ERROR))) + rc = -1; +out: + mutex_unlock(&sync_active); + if (cmd) + cxlflash_cmd_checkin(cmd); + pr_debug("%s: returning rc=%d\n", __func__, rc); + return rc; +} + +/** + * cxlflash_afu_reset() - resets the AFU + * @cxlflash: Internal structure associated with the host. + * + * Return: + * 0 on success + * A failure value from internal services. + */ +int cxlflash_afu_reset(struct cxlflash_cfg *cfg) +{ + int rc = 0; + /* Stop the context before the reset. Since the context is + * no longer available restart it after the reset is complete + */ + + term_afu(cfg); + + rc = init_afu(cfg); + + pr_debug("%s: returning rc=%d\n", __func__, rc); + return rc; +} + +/** + * cxlflash_worker_thread() - work thread handler for the AFU + * @work: Work structure contained within cxlflash associated with host. + * + * Handles the following events: + * - Link reset which cannot be performed on interrupt context due to + * blocking up to a few seconds + * - Read AFU command room + */ +static void cxlflash_worker_thread(struct work_struct *work) +{ + struct cxlflash_cfg *cfg = container_of(work, struct cxlflash_cfg, + work_q); + struct afu *afu = cfg->afu; + int port; + ulong lock_flags; + + /* Avoid MMIO if the device has failed */ + + if (cfg->state != STATE_NORMAL) + return; + + spin_lock_irqsave(cfg->host->host_lock, lock_flags); + + if (cfg->lr_state == LINK_RESET_REQUIRED) { + port = cfg->lr_port; + if (port < 0) + pr_err("%s: invalid port index %d\n", __func__, port); + else { + spin_unlock_irqrestore(cfg->host->host_lock, + lock_flags); + + /* The reset can block... */ + afu_link_reset(afu, port, + &afu->afu_map-> + global.fc_regs[port][0]); + spin_lock_irqsave(cfg->host->host_lock, lock_flags); + } + + cfg->lr_state = LINK_RESET_COMPLETE; + } + + if (afu->read_room) { + atomic64_set(&afu->room, readq_be(&afu->host_map->cmd_room)); + afu->read_room = false; + } + + spin_unlock_irqrestore(cfg->host->host_lock, lock_flags); +} + +/** + * cxlflash_probe() - PCI entry point to add host + * @pdev: PCI device associated with the host. + * @dev_id: PCI device id associated with device. + * + * Return: 0 on success / non-zero on failure + */ +static int cxlflash_probe(struct pci_dev *pdev, + const struct pci_device_id *dev_id) +{ + struct Scsi_Host *host; + struct cxlflash_cfg *cfg = NULL; + struct device *phys_dev; + struct dev_dependent_vals *ddv; + int rc = 0; + + dev_dbg(&pdev->dev, "%s: Found CXLFLASH with IRQ: %d\n", + __func__, pdev->irq); + + ddv = (struct dev_dependent_vals *)dev_id->driver_data; + driver_template.max_sectors = ddv->max_sectors; + + host = scsi_host_alloc(&driver_template, sizeof(struct cxlflash_cfg)); + if (!host) { + dev_err(&pdev->dev, "%s: call to scsi_host_alloc failed!\n", + __func__); + rc = -ENOMEM; + goto out; + } + + host->max_id = CXLFLASH_MAX_NUM_TARGETS_PER_BUS; + host->max_lun = CXLFLASH_MAX_NUM_LUNS_PER_TARGET; + host->max_channel = NUM_FC_PORTS - 1; + host->unique_id = host->host_no; + host->max_cmd_len = CXLFLASH_MAX_CDB_LEN; + + cfg = (struct cxlflash_cfg *)host->hostdata; + cfg->host = host; + rc = alloc_mem(cfg); + if (rc) { + dev_err(&pdev->dev, "%s: call to scsi_host_alloc failed!\n", + __func__); + rc = -ENOMEM; + goto out; + } + + cfg->init_state = INIT_STATE_NONE; + cfg->dev = pdev; + + /* + * The promoted LUNs move to the top of the LUN table. The rest stay + * on the bottom half. The bottom half grows from the end + * (index = 255), whereas the top half grows from the beginning + * (index = 0). + */ + cfg->promote_lun_index = 0; + cfg->last_lun_index[0] = CXLFLASH_NUM_VLUNS/2 - 1; + cfg->last_lun_index[1] = CXLFLASH_NUM_VLUNS/2 - 1; + + cfg->dev_id = (struct pci_device_id *)dev_id; + cfg->mcctx = NULL; + + init_waitqueue_head(&cfg->tmf_waitq); + init_waitqueue_head(&cfg->limbo_waitq); + + INIT_WORK(&cfg->work_q, cxlflash_worker_thread); + cfg->lr_state = LINK_RESET_INVALID; + cfg->lr_port = -1; + mutex_init(&cfg->ctx_tbl_list_mutex); + mutex_init(&cfg->ctx_recovery_mutex); + INIT_LIST_HEAD(&cfg->ctx_err_recovery); + INIT_LIST_HEAD(&cfg->lluns); + + pci_set_drvdata(pdev, cfg); + + /* Use the special service provided to look up the physical + * PCI device, since we are called on the probe of the virtual + * PCI host bus (vphb) + */ + phys_dev = cxl_get_phys_dev(pdev); + if (!dev_is_pci(phys_dev)) { + pr_err("%s: not a pci dev\n", __func__); + rc = -ENODEV; + goto out_remove; + } + cfg->parent_dev = to_pci_dev(phys_dev); + + cfg->cxl_afu = cxl_pci_to_afu(pdev); + + rc = init_pci(cfg); + if (rc) { + dev_err(&pdev->dev, "%s: call to init_pci " + "failed rc=%d!\n", __func__, rc); + goto out_remove; + } + cfg->init_state = INIT_STATE_PCI; + + rc = init_afu(cfg); + if (rc) { + dev_err(&pdev->dev, "%s: call to init_afu " + "failed rc=%d!\n", __func__, rc); + goto out_remove; + } + cfg->init_state = INIT_STATE_AFU; + + + rc = init_scsi(cfg); + if (rc) { + dev_err(&pdev->dev, "%s: call to init_scsi " + "failed rc=%d!\n", __func__, rc); + goto out_remove; + } + cfg->init_state = INIT_STATE_SCSI; + +out: + pr_debug("%s: returning rc=%d\n", __func__, rc); + return rc; + +out_remove: + cxlflash_remove(pdev); + goto out; +} + +/** + * cxlflash_pci_error_detected() - called when a PCI error is detected + * @pdev: PCI device struct. + * @state: PCI channel state. + * + * Return: PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT + */ +static pci_ers_result_t cxlflash_pci_error_detected(struct pci_dev *pdev, + pci_channel_state_t state) +{ + int rc = 0; + struct cxlflash_cfg *cfg = pci_get_drvdata(pdev); + struct device *dev = &cfg->dev->dev; + + dev_dbg(dev, "%s: pdev=%p state=%u\n", __func__, pdev, state); + + switch (state) { + case pci_channel_io_frozen: + cfg->state = STATE_LIMBO; + + /* Turn off legacy I/O */ + scsi_block_requests(cfg->host); + rc = cxlflash_mark_contexts_error(cfg); + if (unlikely(rc)) + dev_err(dev, "%s: Failed to mark user contexts!(%d)\n", + __func__, rc); + term_mc(cfg, UNDO_START); + stop_afu(cfg); + + return PCI_ERS_RESULT_NEED_RESET; + case pci_channel_io_perm_failure: + cfg->state = STATE_FAILTERM; + wake_up_all(&cfg->limbo_waitq); + scsi_unblock_requests(cfg->host); + return PCI_ERS_RESULT_DISCONNECT; + default: + break; + } + return PCI_ERS_RESULT_NEED_RESET; +} + +/** + * cxlflash_pci_slot_reset() - called when PCI slot has been reset + * @pdev: PCI device struct. + * + * This routine is called by the pci error recovery code after the PCI + * slot has been reset, just before we should resume normal operations. + * + * Return: PCI_ERS_RESULT_RECOVERED or PCI_ERS_RESULT_DISCONNECT + */ +static pci_ers_result_t cxlflash_pci_slot_reset(struct pci_dev *pdev) +{ + int rc = 0; + struct cxlflash_cfg *cfg = pci_get_drvdata(pdev); + struct device *dev = &cfg->dev->dev; + + dev_dbg(dev, "%s: pdev=%p\n", __func__, pdev); + + rc = init_afu(cfg); + if (unlikely(rc)) { + dev_err(dev, "%s: EEH recovery failed! (%d)\n", __func__, rc); + return PCI_ERS_RESULT_DISCONNECT; + } + + return PCI_ERS_RESULT_RECOVERED; +} + +/** + * cxlflash_pci_resume() - called when normal operation can resume + * @pdev: PCI device struct + */ +static void cxlflash_pci_resume(struct pci_dev *pdev) +{ + struct cxlflash_cfg *cfg = pci_get_drvdata(pdev); + struct device *dev = &cfg->dev->dev; + + dev_dbg(dev, "%s: pdev=%p\n", __func__, pdev); + + cfg->state = STATE_NORMAL; + wake_up_all(&cfg->limbo_waitq); + scsi_unblock_requests(cfg->host); +} + +static const struct pci_error_handlers cxlflash_err_handler = { + .error_detected = cxlflash_pci_error_detected, + .slot_reset = cxlflash_pci_slot_reset, + .resume = cxlflash_pci_resume, +}; + +/* + * PCI device structure + */ +static struct pci_driver cxlflash_driver = { + .name = CXLFLASH_NAME, + .id_table = cxlflash_pci_table, + .probe = cxlflash_probe, + .remove = cxlflash_remove, + .err_handler = &cxlflash_err_handler, +}; + +/** + * init_cxlflash() - module entry point + * + * Return: 0 on success / non-zero on failure + */ +static int __init init_cxlflash(void) +{ + pr_info("%s: IBM Power CXL Flash Adapter: %s\n", + __func__, CXLFLASH_DRIVER_DATE); + + cxlflash_list_init(); + + return pci_register_driver(&cxlflash_driver); +} + +/** + * exit_cxlflash() - module exit point + */ +static void __exit exit_cxlflash(void) +{ + cxlflash_term_global_luns(); + cxlflash_free_errpage(); + + pci_unregister_driver(&cxlflash_driver); +} + +module_init(init_cxlflash); +module_exit(exit_cxlflash); diff --git a/drivers/scsi/cxlflash/main.h b/drivers/scsi/cxlflash/main.h new file mode 100644 index 000000000000..cf0e80938b13 --- /dev/null +++ b/drivers/scsi/cxlflash/main.h @@ -0,0 +1,108 @@ +/* + * CXL Flash Device Driver + * + * Written by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>, IBM Corporation + * Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation + * + * Copyright (C) 2015 IBM Corporation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#ifndef _CXLFLASH_MAIN_H +#define _CXLFLASH_MAIN_H + +#include <linux/list.h> +#include <linux/types.h> +#include <scsi/scsi.h> +#include <scsi/scsi_device.h> + +#define CXLFLASH_NAME "cxlflash" +#define CXLFLASH_ADAPTER_NAME "IBM POWER CXL Flash Adapter" +#define CXLFLASH_DRIVER_DATE "(August 13, 2015)" + +#define PCI_DEVICE_ID_IBM_CORSA 0x04F0 +#define CXLFLASH_SUBS_DEV_ID 0x04F0 + +/* Since there is only one target, make it 0 */ +#define CXLFLASH_TARGET 0 +#define CXLFLASH_MAX_CDB_LEN 16 + +/* Really only one target per bus since the Texan is directly attached */ +#define CXLFLASH_MAX_NUM_TARGETS_PER_BUS 1 +#define CXLFLASH_MAX_NUM_LUNS_PER_TARGET 65536 + +#define CXLFLASH_PCI_ERROR_RECOVERY_TIMEOUT (120 * HZ) + +#define NUM_FC_PORTS CXLFLASH_NUM_FC_PORTS /* ports per AFU */ + +/* FC defines */ +#define FC_MTIP_CMDCONFIG 0x010 +#define FC_MTIP_STATUS 0x018 + +#define FC_PNAME 0x300 +#define FC_CONFIG 0x320 +#define FC_CONFIG2 0x328 +#define FC_STATUS 0x330 +#define FC_ERROR 0x380 +#define FC_ERRCAP 0x388 +#define FC_ERRMSK 0x390 +#define FC_CNT_CRCERR 0x538 +#define FC_CRC_THRESH 0x580 + +#define FC_MTIP_CMDCONFIG_ONLINE 0x20ULL +#define FC_MTIP_CMDCONFIG_OFFLINE 0x40ULL + +#define FC_MTIP_STATUS_MASK 0x30ULL +#define FC_MTIP_STATUS_ONLINE 0x20ULL +#define FC_MTIP_STATUS_OFFLINE 0x10ULL + +/* TIMEOUT and RETRY definitions */ + +/* AFU command timeout values */ +#define MC_AFU_SYNC_TIMEOUT 5 /* 5 secs */ + +/* AFU command room retry limit */ +#define MC_ROOM_RETRY_CNT 10 + +/* FC CRC clear periodic timer */ +#define MC_CRC_THRESH 100 /* threshold in 5 mins */ + +#define FC_PORT_STATUS_RETRY_CNT 100 /* 100 100ms retries = 10 seconds */ +#define FC_PORT_STATUS_RETRY_INTERVAL_US 100000 /* microseconds */ + +/* VPD defines */ +#define CXLFLASH_VPD_LEN 256 +#define WWPN_LEN 16 +#define WWPN_BUF_LEN (WWPN_LEN + 1) + +enum undo_level { + RELEASE_CONTEXT = 0, + FREE_IRQ, + UNMAP_ONE, + UNMAP_TWO, + UNMAP_THREE, + UNDO_START +}; + +struct dev_dependent_vals { + u64 max_sectors; +}; + +struct asyc_intr_info { + u64 status; + char *desc; + u8 port; + u8 action; +#define CLR_FC_ERROR 0x01 +#define LINK_RESET 0x02 +}; + +#ifndef CONFIG_CXL_EEH +#define cxl_perst_reloads_same_image(_a, _b) do { } while (0) +#endif + +#endif /* _CXLFLASH_MAIN_H */ diff --git a/drivers/scsi/cxlflash/sislite.h b/drivers/scsi/cxlflash/sislite.h new file mode 100644 index 000000000000..63bf394fe78c --- /dev/null +++ b/drivers/scsi/cxlflash/sislite.h @@ -0,0 +1,472 @@ +/* + * CXL Flash Device Driver + * + * Written by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>, IBM Corporation + * Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation + * + * Copyright (C) 2015 IBM Corporation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#ifndef _SISLITE_H +#define _SISLITE_H + +#include <linux/types.h> + +typedef u16 ctx_hndl_t; +typedef u32 res_hndl_t; + +#define SIZE_4K 4096 +#define SIZE_64K 65536 + +/* + * IOARCB: 64 bytes, min 16 byte alignment required, host native endianness + * except for SCSI CDB which remains big endian per SCSI standards. + */ +struct sisl_ioarcb { + u16 ctx_id; /* ctx_hndl_t */ + u16 req_flags; +#define SISL_REQ_FLAGS_RES_HNDL 0x8000U /* bit 0 (MSB) */ +#define SISL_REQ_FLAGS_PORT_LUN_ID 0x0000U + +#define SISL_REQ_FLAGS_SUP_UNDERRUN 0x4000U /* bit 1 */ + +#define SISL_REQ_FLAGS_TIMEOUT_SECS 0x0000U /* bits 8,9 */ +#define SISL_REQ_FLAGS_TIMEOUT_MSECS 0x0040U +#define SISL_REQ_FLAGS_TIMEOUT_USECS 0x0080U +#define SISL_REQ_FLAGS_TIMEOUT_CYCLES 0x00C0U + +#define SISL_REQ_FLAGS_TMF_CMD 0x0004u /* bit 13 */ + +#define SISL_REQ_FLAGS_AFU_CMD 0x0002U /* bit 14 */ + +#define SISL_REQ_FLAGS_HOST_WRITE 0x0001U /* bit 15 (LSB) */ +#define SISL_REQ_FLAGS_HOST_READ 0x0000U + + union { + u32 res_hndl; /* res_hndl_t */ + u32 port_sel; /* this is a selection mask: + * 0x1 -> port#0 can be selected, + * 0x2 -> port#1 can be selected. + * Can be bitwise ORed. + */ + }; + u64 lun_id; + u32 data_len; /* 4K for read/write */ + u32 ioadl_len; + union { + u64 data_ea; /* min 16 byte aligned */ + u64 ioadl_ea; + }; + u8 msi; /* LISN to send on RRQ write */ +#define SISL_MSI_CXL_PFAULT 0 /* reserved for CXL page faults */ +#define SISL_MSI_SYNC_ERROR 1 /* recommended for AFU sync error */ +#define SISL_MSI_RRQ_UPDATED 2 /* recommended for IO completion */ +#define SISL_MSI_ASYNC_ERROR 3 /* master only - for AFU async error */ + + u8 rrq; /* 0 for a single RRQ */ + u16 timeout; /* in units specified by req_flags */ + u32 rsvd1; + u8 cdb[16]; /* must be in big endian */ + struct scsi_cmnd *scp; +} __packed; + +struct sisl_rc { + u8 flags; +#define SISL_RC_FLAGS_SENSE_VALID 0x80U +#define SISL_RC_FLAGS_FCP_RSP_CODE_VALID 0x40U +#define SISL_RC_FLAGS_OVERRUN 0x20U +#define SISL_RC_FLAGS_UNDERRUN 0x10U + + u8 afu_rc; +#define SISL_AFU_RC_RHT_INVALID 0x01U /* user error */ +#define SISL_AFU_RC_RHT_UNALIGNED 0x02U /* should never happen */ +#define SISL_AFU_RC_RHT_OUT_OF_BOUNDS 0x03u /* user error */ +#define SISL_AFU_RC_RHT_DMA_ERR 0x04u /* see afu_extra + may retry if afu_retry is off + possible on master exit + */ +#define SISL_AFU_RC_RHT_RW_PERM 0x05u /* no RW perms, user error */ +#define SISL_AFU_RC_LXT_UNALIGNED 0x12U /* should never happen */ +#define SISL_AFU_RC_LXT_OUT_OF_BOUNDS 0x13u /* user error */ +#define SISL_AFU_RC_LXT_DMA_ERR 0x14u /* see afu_extra + may retry if afu_retry is off + possible on master exit + */ +#define SISL_AFU_RC_LXT_RW_PERM 0x15u /* no RW perms, user error */ + +#define SISL_AFU_RC_NOT_XLATE_HOST 0x1au /* possible if master exited */ + + /* NO_CHANNELS means the FC ports selected by dest_port in + * IOARCB or in the LXT entry are down when the AFU tried to select + * a FC port. If the port went down on an active IO, it will set + * fc_rc to =0x54(NOLOGI) or 0x57(LINKDOWN) instead. + */ +#define SISL_AFU_RC_NO_CHANNELS 0x20U /* see afu_extra, may retry */ +#define SISL_AFU_RC_CAP_VIOLATION 0x21U /* either user error or + afu reset/master restart + */ +#define SISL_AFU_RC_OUT_OF_DATA_BUFS 0x30U /* always retry */ +#define SISL_AFU_RC_DATA_DMA_ERR 0x31U /* see afu_extra + may retry if afu_retry is off + */ + + u8 scsi_rc; /* SCSI status byte, retry as appropriate */ +#define SISL_SCSI_RC_CHECK 0x02U +#define SISL_SCSI_RC_BUSY 0x08u + + u8 fc_rc; /* retry */ + /* + * We should only see fc_rc=0x57 (LINKDOWN) or 0x54(NOLOGI) for + * commands that are in flight when a link goes down or is logged out. + * If the link is down or logged out before AFU selects the port, either + * it will choose the other port or we will get afu_rc=0x20 (no_channel) + * if there is no valid port to use. + * + * ABORTPEND/ABORTOK/ABORTFAIL/TGTABORT can be retried, typically these + * would happen if a frame is dropped and something times out. + * NOLOGI or LINKDOWN can be retried if the other port is up. + * RESIDERR can be retried as well. + * + * ABORTFAIL might indicate that lots of frames are getting CRC errors. + * So it maybe retried once and reset the link if it happens again. + * The link can also be reset on the CRC error threshold interrupt. + */ +#define SISL_FC_RC_ABORTPEND 0x52 /* exchange timeout or abort request */ +#define SISL_FC_RC_WRABORTPEND 0x53 /* due to write XFER_RDY invalid */ +#define SISL_FC_RC_NOLOGI 0x54 /* port not logged in, in-flight cmds */ +#define SISL_FC_RC_NOEXP 0x55 /* FC protocol error or HW bug */ +#define SISL_FC_RC_INUSE 0x56 /* tag already in use, HW bug */ +#define SISL_FC_RC_LINKDOWN 0x57 /* link down, in-flight cmds */ +#define SISL_FC_RC_ABORTOK 0x58 /* pending abort completed w/success */ +#define SISL_FC_RC_ABORTFAIL 0x59 /* pending abort completed w/fail */ +#define SISL_FC_RC_RESID 0x5A /* ioasa underrun/overrun flags set */ +#define SISL_FC_RC_RESIDERR 0x5B /* actual data len does not match SCSI + reported len, possbly due to dropped + frames */ +#define SISL_FC_RC_TGTABORT 0x5C /* command aborted by target */ +}; + +#define SISL_SENSE_DATA_LEN 20 /* Sense data length */ + +/* + * IOASA: 64 bytes & must follow IOARCB, min 16 byte alignment required, + * host native endianness + */ +struct sisl_ioasa { + union { + struct sisl_rc rc; + u32 ioasc; +#define SISL_IOASC_GOOD_COMPLETION 0x00000000U + }; + u32 resid; + u8 port; + u8 afu_extra; + /* when afu_rc=0x04, 0x14, 0x31 (_xxx_DMA_ERR): + * afu_exta contains PSL response code. Useful codes are: + */ +#define SISL_AFU_DMA_ERR_PAGE_IN 0x0A /* AFU_retry_on_pagein Action + * Enabled N/A + * Disabled retry + */ +#define SISL_AFU_DMA_ERR_INVALID_EA 0x0B /* this is a hard error + * afu_rc Implies + * 0x04, 0x14 master exit. + * 0x31 user error. + */ + /* when afu rc=0x20 (no channels): + * afu_extra bits [4:5]: available portmask, [6:7]: requested portmask. + */ +#define SISL_AFU_NO_CLANNELS_AMASK(afu_extra) (((afu_extra) & 0x0C) >> 2) +#define SISL_AFU_NO_CLANNELS_RMASK(afu_extra) ((afu_extra) & 0x03) + + u8 scsi_extra; + u8 fc_extra; + u8 sense_data[SISL_SENSE_DATA_LEN]; + + /* These fields are defined by the SISlite architecture for the + * host to use as they see fit for their implementation. + */ + union { + u64 host_use[4]; + u8 host_use_b[32]; + }; +} __packed; + +#define SISL_RESP_HANDLE_T_BIT 0x1ULL /* Toggle bit */ + +/* MMIO space is required to support only 64-bit access */ + +/* + * This AFU has two mechanisms to deal with endian-ness. + * One is a global configuration (in the afu_config) register + * below that specifies the endian-ness of the host. + * The other is a per context (i.e. application) specification + * controlled by the endian_ctrl field here. Since the master + * context is one such application the master context's + * endian-ness is set to be the same as the host. + * + * As per the SISlite spec, the MMIO registers are always + * big endian. + */ +#define SISL_ENDIAN_CTRL_BE 0x8000000000000080ULL +#define SISL_ENDIAN_CTRL_LE 0x0000000000000000ULL + +#ifdef __BIG_ENDIAN +#define SISL_ENDIAN_CTRL SISL_ENDIAN_CTRL_BE +#else +#define SISL_ENDIAN_CTRL SISL_ENDIAN_CTRL_LE +#endif + +/* per context host transport MMIO */ +struct sisl_host_map { + __be64 endian_ctrl; /* Per context Endian Control. The AFU will + * operate on whatever the context is of the + * host application. + */ + + __be64 intr_status; /* this sends LISN# programmed in ctx_ctrl. + * Only recovery in a PERM_ERR is a context + * exit since there is no way to tell which + * command caused the error. + */ +#define SISL_ISTATUS_PERM_ERR_CMDROOM 0x0010ULL /* b59, user error */ +#define SISL_ISTATUS_PERM_ERR_RCB_READ 0x0008ULL /* b60, user error */ +#define SISL_ISTATUS_PERM_ERR_SA_WRITE 0x0004ULL /* b61, user error */ +#define SISL_ISTATUS_PERM_ERR_RRQ_WRITE 0x0002ULL /* b62, user error */ + /* Page in wait accessing RCB/IOASA/RRQ is reported in b63. + * Same error in data/LXT/RHT access is reported via IOASA. + */ +#define SISL_ISTATUS_TEMP_ERR_PAGEIN 0x0001ULL /* b63, can be generated + * only when AFU auto + * retry is disabled. + * If user can determine + * the command that + * caused the error, it + * can be retried. + */ +#define SISL_ISTATUS_UNMASK (0x001FULL) /* 1 means unmasked */ +#define SISL_ISTATUS_MASK ~(SISL_ISTATUS_UNMASK) /* 1 means masked */ + + __be64 intr_clear; + __be64 intr_mask; + __be64 ioarrin; /* only write what cmd_room permits */ + __be64 rrq_start; /* start & end are both inclusive */ + __be64 rrq_end; /* write sequence: start followed by end */ + __be64 cmd_room; + __be64 ctx_ctrl; /* least signiifcant byte or b56:63 is LISN# */ + __be64 mbox_w; /* restricted use */ +}; + +/* per context provisioning & control MMIO */ +struct sisl_ctrl_map { + __be64 rht_start; + __be64 rht_cnt_id; + /* both cnt & ctx_id args must be ULL */ +#define SISL_RHT_CNT_ID(cnt, ctx_id) (((cnt) << 48) | ((ctx_id) << 32)) + + __be64 ctx_cap; /* afu_rc below is when the capability is violated */ +#define SISL_CTX_CAP_PROXY_ISSUE 0x8000000000000000ULL /* afu_rc 0x21 */ +#define SISL_CTX_CAP_REAL_MODE 0x4000000000000000ULL /* afu_rc 0x21 */ +#define SISL_CTX_CAP_HOST_XLATE 0x2000000000000000ULL /* afu_rc 0x1a */ +#define SISL_CTX_CAP_PROXY_TARGET 0x1000000000000000ULL /* afu_rc 0x21 */ +#define SISL_CTX_CAP_AFU_CMD 0x0000000000000008ULL /* afu_rc 0x21 */ +#define SISL_CTX_CAP_GSCSI_CMD 0x0000000000000004ULL /* afu_rc 0x21 */ +#define SISL_CTX_CAP_WRITE_CMD 0x0000000000000002ULL /* afu_rc 0x21 */ +#define SISL_CTX_CAP_READ_CMD 0x0000000000000001ULL /* afu_rc 0x21 */ + __be64 mbox_r; +}; + +/* single copy global regs */ +struct sisl_global_regs { + __be64 aintr_status; + /* In cxlflash, each FC port/link gets a byte of status */ +#define SISL_ASTATUS_FC0_OTHER 0x8000ULL /* b48, other err, + FC_ERRCAP[31:20] */ +#define SISL_ASTATUS_FC0_LOGO 0x4000ULL /* b49, target sent FLOGI/PLOGI/LOGO + while logged in */ +#define SISL_ASTATUS_FC0_CRC_T 0x2000ULL /* b50, CRC threshold exceeded */ +#define SISL_ASTATUS_FC0_LOGI_R 0x1000ULL /* b51, login state mechine timed out + and retrying */ +#define SISL_ASTATUS_FC0_LOGI_F 0x0800ULL /* b52, login failed, + FC_ERROR[19:0] */ +#define SISL_ASTATUS_FC0_LOGI_S 0x0400ULL /* b53, login succeeded */ +#define SISL_ASTATUS_FC0_LINK_DN 0x0200ULL /* b54, link online to offline */ +#define SISL_ASTATUS_FC0_LINK_UP 0x0100ULL /* b55, link offline to online */ + +#define SISL_ASTATUS_FC1_OTHER 0x0080ULL /* b56 */ +#define SISL_ASTATUS_FC1_LOGO 0x0040ULL /* b57 */ +#define SISL_ASTATUS_FC1_CRC_T 0x0020ULL /* b58 */ +#define SISL_ASTATUS_FC1_LOGI_R 0x0010ULL /* b59 */ +#define SISL_ASTATUS_FC1_LOGI_F 0x0008ULL /* b60 */ +#define SISL_ASTATUS_FC1_LOGI_S 0x0004ULL /* b61 */ +#define SISL_ASTATUS_FC1_LINK_DN 0x0002ULL /* b62 */ +#define SISL_ASTATUS_FC1_LINK_UP 0x0001ULL /* b63 */ + +#define SISL_FC_INTERNAL_UNMASK 0x0000000300000000ULL /* 1 means unmasked */ +#define SISL_FC_INTERNAL_MASK ~(SISL_FC_INTERNAL_UNMASK) +#define SISL_FC_INTERNAL_SHIFT 32 + +#define SISL_ASTATUS_UNMASK 0xFFFFULL /* 1 means unmasked */ +#define SISL_ASTATUS_MASK ~(SISL_ASTATUS_UNMASK) /* 1 means masked */ + + __be64 aintr_clear; + __be64 aintr_mask; + __be64 afu_ctrl; + __be64 afu_hb; + __be64 afu_scratch_pad; + __be64 afu_port_sel; +#define SISL_AFUCONF_AR_IOARCB 0x4000ULL +#define SISL_AFUCONF_AR_LXT 0x2000ULL +#define SISL_AFUCONF_AR_RHT 0x1000ULL +#define SISL_AFUCONF_AR_DATA 0x0800ULL +#define SISL_AFUCONF_AR_RSRC 0x0400ULL +#define SISL_AFUCONF_AR_IOASA 0x0200ULL +#define SISL_AFUCONF_AR_RRQ 0x0100ULL +/* Aggregate all Auto Retry Bits */ +#define SISL_AFUCONF_AR_ALL (SISL_AFUCONF_AR_IOARCB|SISL_AFUCONF_AR_LXT| \ + SISL_AFUCONF_AR_RHT|SISL_AFUCONF_AR_DATA| \ + SISL_AFUCONF_AR_RSRC|SISL_AFUCONF_AR_IOASA| \ + SISL_AFUCONF_AR_RRQ) +#ifdef __BIG_ENDIAN +#define SISL_AFUCONF_ENDIAN 0x0000ULL +#else +#define SISL_AFUCONF_ENDIAN 0x0020ULL +#endif +#define SISL_AFUCONF_MBOX_CLR_READ 0x0010ULL + __be64 afu_config; + __be64 rsvd[0xf8]; + __be64 afu_version; + __be64 interface_version; +}; + +#define CXLFLASH_NUM_FC_PORTS 2 +#define CXLFLASH_MAX_CONTEXT 512 /* how many contexts per afu */ +#define CXLFLASH_NUM_VLUNS 512 + +struct sisl_global_map { + union { + struct sisl_global_regs regs; + char page0[SIZE_4K]; /* page 0 */ + }; + + char page1[SIZE_4K]; /* page 1 */ + + /* pages 2 & 3 */ + __be64 fc_regs[CXLFLASH_NUM_FC_PORTS][CXLFLASH_NUM_VLUNS]; + + /* pages 4 & 5 (lun tbl) */ + __be64 fc_port[CXLFLASH_NUM_FC_PORTS][CXLFLASH_NUM_VLUNS]; + +}; + +/* + * CXL Flash Memory Map + * + * +-------------------------------+ + * | 512 * 64 KB User MMIO | + * | (per context) | + * | User Accessible | + * +-------------------------------+ + * | 512 * 128 B per context | + * | Provisioning and Control | + * | Trusted Process accessible | + * +-------------------------------+ + * | 64 KB Global | + * | Trusted Process accessible | + * +-------------------------------+ +*/ +struct cxlflash_afu_map { + union { + struct sisl_host_map host; + char harea[SIZE_64K]; /* 64KB each */ + } hosts[CXLFLASH_MAX_CONTEXT]; + + union { + struct sisl_ctrl_map ctrl; + char carea[cache_line_size()]; /* 128B each */ + } ctrls[CXLFLASH_MAX_CONTEXT]; + + union { + struct sisl_global_map global; + char garea[SIZE_64K]; /* 64KB single block */ + }; +}; + +/* + * LXT - LBA Translation Table + * LXT control blocks + */ +struct sisl_lxt_entry { + u64 rlba_base; /* bits 0:47 is base + * b48:55 is lun index + * b58:59 is write & read perms + * (if no perm, afu_rc=0x15) + * b60:63 is port_sel mask + */ +}; + +/* + * RHT - Resource Handle Table + * Per the SISlite spec, RHT entries are to be 16-byte aligned + */ +struct sisl_rht_entry { + struct sisl_lxt_entry *lxt_start; + u32 lxt_cnt; + u16 rsvd; + u8 fp; /* format & perm nibbles. + * (if no perm, afu_rc=0x05) + */ + u8 nmask; +} __packed __aligned(16); + +struct sisl_rht_entry_f1 { + u64 lun_id; + union { + struct { + u8 valid; + u8 rsvd[5]; + u8 fp; + u8 port_sel; + }; + + u64 dw; + }; +} __packed __aligned(16); + +/* make the fp byte */ +#define SISL_RHT_FP(fmt, perm) (((fmt) << 4) | (perm)) + +/* make the fp byte for a clone from a source fp and clone flags + * flags must be only 2 LSB bits. + */ +#define SISL_RHT_FP_CLONE(src_fp, cln_flags) ((src_fp) & (0xFC | (cln_flags))) + +#define RHT_PERM_READ 0x01U +#define RHT_PERM_WRITE 0x02U +#define RHT_PERM_RW (RHT_PERM_READ | RHT_PERM_WRITE) + +/* extract the perm bits from a fp */ +#define SISL_RHT_PERM(fp) ((fp) & RHT_PERM_RW) + +#define PORT0 0x01U +#define PORT1 0x02U +#define BOTH_PORTS (PORT0 | PORT1) + +/* AFU Sync Mode byte */ +#define AFU_LW_SYNC 0x0U +#define AFU_HW_SYNC 0x1U +#define AFU_GSYNC 0x2U + +/* Special Task Management Function CDB */ +#define TMF_LUN_RESET 0x1U +#define TMF_CLEAR_ACA 0x2U + + +#define SISLITE_MAX_WS_BLOCKS 512 + +#endif /* _SISLITE_H */ diff --git a/drivers/scsi/cxlflash/superpipe.c b/drivers/scsi/cxlflash/superpipe.c new file mode 100644 index 000000000000..f1b62cea75b1 --- /dev/null +++ b/drivers/scsi/cxlflash/superpipe.c @@ -0,0 +1,2084 @@ +/* + * CXL Flash Device Driver + * + * Written by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>, IBM Corporation + * Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation + * + * Copyright (C) 2015 IBM Corporation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#include <linux/delay.h> +#include <linux/file.h> +#include <linux/syscalls.h> +#include <misc/cxl.h> +#include <asm/unaligned.h> + +#include <scsi/scsi.h> +#include <scsi/scsi_host.h> +#include <scsi/scsi_cmnd.h> +#include <scsi/scsi_eh.h> +#include <uapi/scsi/cxlflash_ioctl.h> + +#include "sislite.h" +#include "common.h" +#include "vlun.h" +#include "superpipe.h" + +struct cxlflash_global global; + +/** + * marshal_rele_to_resize() - translate release to resize structure + * @rele: Source structure from which to translate/copy. + * @resize: Destination structure for the translate/copy. + */ +static void marshal_rele_to_resize(struct dk_cxlflash_release *release, + struct dk_cxlflash_resize *resize) +{ + resize->hdr = release->hdr; + resize->context_id = release->context_id; + resize->rsrc_handle = release->rsrc_handle; +} + +/** + * marshal_det_to_rele() - translate detach to release structure + * @detach: Destination structure for the translate/copy. + * @rele: Source structure from which to translate/copy. + */ +static void marshal_det_to_rele(struct dk_cxlflash_detach *detach, + struct dk_cxlflash_release *release) +{ + release->hdr = detach->hdr; + release->context_id = detach->context_id; +} + +/** + * cxlflash_free_errpage() - frees resources associated with global error page + */ +void cxlflash_free_errpage(void) +{ + + mutex_lock(&global.mutex); + if (global.err_page) { + __free_page(global.err_page); + global.err_page = NULL; + } + mutex_unlock(&global.mutex); +} + +/** + * cxlflash_stop_term_user_contexts() - stops/terminates known user contexts + * @cfg: Internal structure associated with the host. + * + * When the host needs to go down, all users must be quiesced and their + * memory freed. This is accomplished by putting the contexts in error + * state which will notify the user and let them 'drive' the tear-down. + * Meanwhile, this routine camps until all user contexts have been removed. + */ +void cxlflash_stop_term_user_contexts(struct cxlflash_cfg *cfg) +{ + struct device *dev = &cfg->dev->dev; + int i, found; + + cxlflash_mark_contexts_error(cfg); + + while (true) { + found = false; + + for (i = 0; i < MAX_CONTEXT; i++) + if (cfg->ctx_tbl[i]) { + found = true; + break; + } + + if (!found && list_empty(&cfg->ctx_err_recovery)) + return; + + dev_dbg(dev, "%s: Wait for user contexts to quiesce...\n", + __func__); + wake_up_all(&cfg->limbo_waitq); + ssleep(1); + } +} + +/** + * find_error_context() - locates a context by cookie on the error recovery list + * @cfg: Internal structure associated with the host. + * @rctxid: Desired context by id. + * @file: Desired context by file. + * + * Return: Found context on success, NULL on failure + */ +static struct ctx_info *find_error_context(struct cxlflash_cfg *cfg, u64 rctxid, + struct file *file) +{ + struct ctx_info *ctxi; + + list_for_each_entry(ctxi, &cfg->ctx_err_recovery, list) + if ((ctxi->ctxid == rctxid) || (ctxi->file == file)) + return ctxi; + + return NULL; +} + +/** + * get_context() - obtains a validated and locked context reference + * @cfg: Internal structure associated with the host. + * @rctxid: Desired context (raw, un-decoded format). + * @arg: LUN information or file associated with request. + * @ctx_ctrl: Control information to 'steer' desired lookup. + * + * NOTE: despite the name pid, in linux, current->pid actually refers + * to the lightweight process id (tid) and can change if the process is + * multi threaded. The tgid remains constant for the process and only changes + * when the process of fork. For all intents and purposes, think of tgid + * as a pid in the traditional sense. + * + * Return: Validated context on success, NULL on failure + */ +struct ctx_info *get_context(struct cxlflash_cfg *cfg, u64 rctxid, + void *arg, enum ctx_ctrl ctx_ctrl) +{ + struct device *dev = &cfg->dev->dev; + struct ctx_info *ctxi = NULL; + struct lun_access *lun_access = NULL; + struct file *file = NULL; + struct llun_info *lli = arg; + u64 ctxid = DECODE_CTXID(rctxid); + int rc; + pid_t pid = current->tgid, ctxpid = 0; + + if (ctx_ctrl & CTX_CTRL_FILE) { + lli = NULL; + file = (struct file *)arg; + } + + if (ctx_ctrl & CTX_CTRL_CLONE) + pid = current->parent->tgid; + + if (likely(ctxid < MAX_CONTEXT)) { + while (true) { + rc = mutex_lock_interruptible(&cfg->ctx_tbl_list_mutex); + if (rc) + goto out; + + ctxi = cfg->ctx_tbl[ctxid]; + if (ctxi) + if ((file && (ctxi->file != file)) || + (!file && (ctxi->ctxid != rctxid))) + ctxi = NULL; + + if ((ctx_ctrl & CTX_CTRL_ERR) || + (!ctxi && (ctx_ctrl & CTX_CTRL_ERR_FALLBACK))) + ctxi = find_error_context(cfg, rctxid, file); + if (!ctxi) { + mutex_unlock(&cfg->ctx_tbl_list_mutex); + goto out; + } + + /* + * Need to acquire ownership of the context while still + * under the table/list lock to serialize with a remove + * thread. Use the 'try' to avoid stalling the + * table/list lock for a single context. + * + * Note that the lock order is: + * + * cfg->ctx_tbl_list_mutex -> ctxi->mutex + * + * Therefore release ctx_tbl_list_mutex before retrying. + */ + rc = mutex_trylock(&ctxi->mutex); + mutex_unlock(&cfg->ctx_tbl_list_mutex); + if (rc) + break; /* got the context's lock! */ + } + + if (ctxi->unavail) + goto denied; + + ctxpid = ctxi->pid; + if (likely(!(ctx_ctrl & CTX_CTRL_NOPID))) + if (pid != ctxpid) + goto denied; + + if (lli) { + list_for_each_entry(lun_access, &ctxi->luns, list) + if (lun_access->lli == lli) + goto out; + goto denied; + } + } + +out: + dev_dbg(dev, "%s: rctxid=%016llX ctxinfo=%p ctxpid=%u pid=%u " + "ctx_ctrl=%u\n", __func__, rctxid, ctxi, ctxpid, pid, + ctx_ctrl); + + return ctxi; + +denied: + mutex_unlock(&ctxi->mutex); + ctxi = NULL; + goto out; +} + +/** + * put_context() - release a context that was retrieved from get_context() + * @ctxi: Context to release. + * + * For now, releasing the context equates to unlocking it's mutex. + */ +void put_context(struct ctx_info *ctxi) +{ + mutex_unlock(&ctxi->mutex); +} + +/** + * afu_attach() - attach a context to the AFU + * @cfg: Internal structure associated with the host. + * @ctxi: Context to attach. + * + * Upon setting the context capabilities, they must be confirmed with + * a read back operation as the context might have been closed since + * the mailbox was unlocked. When this occurs, registration is failed. + * + * Return: 0 on success, -errno on failure + */ +static int afu_attach(struct cxlflash_cfg *cfg, struct ctx_info *ctxi) +{ + struct device *dev = &cfg->dev->dev; + struct afu *afu = cfg->afu; + struct sisl_ctrl_map *ctrl_map = ctxi->ctrl_map; + int rc = 0; + u64 val; + + /* Unlock cap and restrict user to read/write cmds in translated mode */ + readq_be(&ctrl_map->mbox_r); + val = (SISL_CTX_CAP_READ_CMD | SISL_CTX_CAP_WRITE_CMD); + writeq_be(val, &ctrl_map->ctx_cap); + val = readq_be(&ctrl_map->ctx_cap); + if (val != (SISL_CTX_CAP_READ_CMD | SISL_CTX_CAP_WRITE_CMD)) { + dev_err(dev, "%s: ctx may be closed val=%016llX\n", + __func__, val); + rc = -EAGAIN; + goto out; + } + + /* Set up MMIO registers pointing to the RHT */ + writeq_be((u64)ctxi->rht_start, &ctrl_map->rht_start); + val = SISL_RHT_CNT_ID((u64)MAX_RHT_PER_CONTEXT, (u64)(afu->ctx_hndl)); + writeq_be(val, &ctrl_map->rht_cnt_id); +out: + dev_dbg(dev, "%s: returning rc=%d\n", __func__, rc); + return rc; +} + +/** + * read_cap16() - issues a SCSI READ_CAP16 command + * @sdev: SCSI device associated with LUN. + * @lli: LUN destined for capacity request. + * + * Return: 0 on success, -errno on failure + */ +static int read_cap16(struct scsi_device *sdev, struct llun_info *lli) +{ + struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)sdev->host->hostdata; + struct device *dev = &cfg->dev->dev; + struct glun_info *gli = lli->parent; + u8 *cmd_buf = NULL; + u8 *scsi_cmd = NULL; + u8 *sense_buf = NULL; + int rc = 0; + int result = 0; + int retry_cnt = 0; + u32 tout = (MC_DISCOVERY_TIMEOUT * HZ); + +retry: + cmd_buf = kzalloc(CMD_BUFSIZE, GFP_KERNEL); + scsi_cmd = kzalloc(MAX_COMMAND_SIZE, GFP_KERNEL); + sense_buf = kzalloc(SCSI_SENSE_BUFFERSIZE, GFP_KERNEL); + if (unlikely(!cmd_buf || !scsi_cmd || !sense_buf)) { + rc = -ENOMEM; + goto out; + } + + scsi_cmd[0] = SERVICE_ACTION_IN_16; /* read cap(16) */ + scsi_cmd[1] = SAI_READ_CAPACITY_16; /* service action */ + put_unaligned_be32(CMD_BUFSIZE, &scsi_cmd[10]); + + dev_dbg(dev, "%s: %ssending cmd(0x%x)\n", __func__, + retry_cnt ? "re" : "", scsi_cmd[0]); + + result = scsi_execute(sdev, scsi_cmd, DMA_FROM_DEVICE, cmd_buf, + CMD_BUFSIZE, sense_buf, tout, 5, 0, NULL); + + if (driver_byte(result) == DRIVER_SENSE) { + result &= ~(0xFF<<24); /* DRIVER_SENSE is not an error */ + if (result & SAM_STAT_CHECK_CONDITION) { + struct scsi_sense_hdr sshdr; + + scsi_normalize_sense(sense_buf, SCSI_SENSE_BUFFERSIZE, + &sshdr); + switch (sshdr.sense_key) { + case NO_SENSE: + case RECOVERED_ERROR: + /* fall through */ + case NOT_READY: + result &= ~SAM_STAT_CHECK_CONDITION; + break; + case UNIT_ATTENTION: + switch (sshdr.asc) { + case 0x29: /* Power on Reset or Device Reset */ + /* fall through */ + case 0x2A: /* Device capacity changed */ + case 0x3F: /* Report LUNs changed */ + /* Retry the command once more */ + if (retry_cnt++ < 1) { + kfree(cmd_buf); + kfree(scsi_cmd); + kfree(sense_buf); + goto retry; + } + } + break; + default: + break; + } + } + } + + if (result) { + dev_err(dev, "%s: command failed, result=0x%x\n", + __func__, result); + rc = -EIO; + goto out; + } + + /* + * Read cap was successful, grab values from the buffer; + * note that we don't need to worry about unaligned access + * as the buffer is allocated on an aligned boundary. + */ + mutex_lock(&gli->mutex); + gli->max_lba = be64_to_cpu(*((u64 *)&cmd_buf[0])); + gli->blk_len = be32_to_cpu(*((u32 *)&cmd_buf[8])); + mutex_unlock(&gli->mutex); + +out: + kfree(cmd_buf); + kfree(scsi_cmd); + kfree(sense_buf); + + dev_dbg(dev, "%s: maxlba=%lld blklen=%d rc=%d\n", + __func__, gli->max_lba, gli->blk_len, rc); + return rc; +} + +/** + * get_rhte() - obtains validated resource handle table entry reference + * @ctxi: Context owning the resource handle. + * @rhndl: Resource handle associated with entry. + * @lli: LUN associated with request. + * + * Return: Validated RHTE on success, NULL on failure + */ +struct sisl_rht_entry *get_rhte(struct ctx_info *ctxi, res_hndl_t rhndl, + struct llun_info *lli) +{ + struct sisl_rht_entry *rhte = NULL; + + if (unlikely(!ctxi->rht_start)) { + pr_debug("%s: Context does not have allocated RHT!\n", + __func__); + goto out; + } + + if (unlikely(rhndl >= MAX_RHT_PER_CONTEXT)) { + pr_debug("%s: Bad resource handle! (%d)\n", __func__, rhndl); + goto out; + } + + if (unlikely(ctxi->rht_lun[rhndl] != lli)) { + pr_debug("%s: Bad resource handle LUN! (%d)\n", + __func__, rhndl); + goto out; + } + + rhte = &ctxi->rht_start[rhndl]; + if (unlikely(rhte->nmask == 0)) { + pr_debug("%s: Unopened resource handle! (%d)\n", + __func__, rhndl); + rhte = NULL; + goto out; + } + +out: + return rhte; +} + +/** + * rhte_checkout() - obtains free/empty resource handle table entry + * @ctxi: Context owning the resource handle. + * @lli: LUN associated with request. + * + * Return: Free RHTE on success, NULL on failure + */ +struct sisl_rht_entry *rhte_checkout(struct ctx_info *ctxi, + struct llun_info *lli) +{ + struct sisl_rht_entry *rhte = NULL; + int i; + + /* Find a free RHT entry */ + for (i = 0; i < MAX_RHT_PER_CONTEXT; i++) + if (ctxi->rht_start[i].nmask == 0) { + rhte = &ctxi->rht_start[i]; + ctxi->rht_out++; + break; + } + + if (likely(rhte)) + ctxi->rht_lun[i] = lli; + + pr_debug("%s: returning rhte=%p (%d)\n", __func__, rhte, i); + return rhte; +} + +/** + * rhte_checkin() - releases a resource handle table entry + * @ctxi: Context owning the resource handle. + * @rhte: RHTE to release. + */ +void rhte_checkin(struct ctx_info *ctxi, + struct sisl_rht_entry *rhte) +{ + u32 rsrc_handle = rhte - ctxi->rht_start; + + rhte->nmask = 0; + rhte->fp = 0; + ctxi->rht_out--; + ctxi->rht_lun[rsrc_handle] = NULL; + ctxi->rht_needs_ws[rsrc_handle] = false; +} + +/** + * rhte_format1() - populates a RHTE for format 1 + * @rhte: RHTE to populate. + * @lun_id: LUN ID of LUN associated with RHTE. + * @perm: Desired permissions for RHTE. + * @port_sel: Port selection mask + */ +static void rht_format1(struct sisl_rht_entry *rhte, u64 lun_id, u32 perm, + u32 port_sel) +{ + /* + * Populate the Format 1 RHT entry for direct access (physical + * LUN) using the synchronization sequence defined in the + * SISLite specification. + */ + struct sisl_rht_entry_f1 dummy = { 0 }; + struct sisl_rht_entry_f1 *rhte_f1 = (struct sisl_rht_entry_f1 *)rhte; + + memset(rhte_f1, 0, sizeof(*rhte_f1)); + rhte_f1->fp = SISL_RHT_FP(1U, 0); + dma_wmb(); /* Make setting of format bit visible */ + + rhte_f1->lun_id = lun_id; + dma_wmb(); /* Make setting of LUN id visible */ + + /* + * Use a dummy RHT Format 1 entry to build the second dword + * of the entry that must be populated in a single write when + * enabled (valid bit set to TRUE). + */ + dummy.valid = 0x80; + dummy.fp = SISL_RHT_FP(1U, perm); + dummy.port_sel = port_sel; + rhte_f1->dw = dummy.dw; + + dma_wmb(); /* Make remaining RHT entry fields visible */ +} + +/** + * cxlflash_lun_attach() - attaches a user to a LUN and manages the LUN's mode + * @gli: LUN to attach. + * @mode: Desired mode of the LUN. + * @locked: Mutex status on current thread. + * + * Return: 0 on success, -errno on failure + */ +int cxlflash_lun_attach(struct glun_info *gli, enum lun_mode mode, bool locked) +{ + int rc = 0; + + if (!locked) + mutex_lock(&gli->mutex); + + if (gli->mode == MODE_NONE) + gli->mode = mode; + else if (gli->mode != mode) { + pr_debug("%s: LUN operating in mode %d, requested mode %d\n", + __func__, gli->mode, mode); + rc = -EINVAL; + goto out; + } + + gli->users++; + WARN_ON(gli->users <= 0); +out: + pr_debug("%s: Returning rc=%d gli->mode=%u gli->users=%u\n", + __func__, rc, gli->mode, gli->users); + if (!locked) + mutex_unlock(&gli->mutex); + return rc; +} + +/** + * cxlflash_lun_detach() - detaches a user from a LUN and resets the LUN's mode + * @gli: LUN to detach. + * + * When resetting the mode, terminate block allocation resources as they + * are no longer required (service is safe to call even when block allocation + * resources were not present - such as when transitioning from physical mode). + * These resources will be reallocated when needed (subsequent transition to + * virtual mode). + */ +void cxlflash_lun_detach(struct glun_info *gli) +{ + mutex_lock(&gli->mutex); + WARN_ON(gli->mode == MODE_NONE); + if (--gli->users == 0) { + gli->mode = MODE_NONE; + cxlflash_ba_terminate(&gli->blka.ba_lun); + } + pr_debug("%s: gli->users=%u\n", __func__, gli->users); + WARN_ON(gli->users < 0); + mutex_unlock(&gli->mutex); +} + +/** + * _cxlflash_disk_release() - releases the specified resource entry + * @sdev: SCSI device associated with LUN. + * @ctxi: Context owning resources. + * @release: Release ioctl data structure. + * + * For LUNs in virtual mode, the virtual LUN associated with the specified + * resource handle is resized to 0 prior to releasing the RHTE. Note that the + * AFU sync should _not_ be performed when the context is sitting on the error + * recovery list. A context on the error recovery list is not known to the AFU + * due to reset. When the context is recovered, it will be reattached and made + * known again to the AFU. + * + * Return: 0 on success, -errno on failure + */ +int _cxlflash_disk_release(struct scsi_device *sdev, + struct ctx_info *ctxi, + struct dk_cxlflash_release *release) +{ + struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)sdev->host->hostdata; + struct device *dev = &cfg->dev->dev; + struct llun_info *lli = sdev->hostdata; + struct glun_info *gli = lli->parent; + struct afu *afu = cfg->afu; + bool put_ctx = false; + + struct dk_cxlflash_resize size; + res_hndl_t rhndl = release->rsrc_handle; + + int rc = 0; + u64 ctxid = DECODE_CTXID(release->context_id), + rctxid = release->context_id; + + struct sisl_rht_entry *rhte; + struct sisl_rht_entry_f1 *rhte_f1; + + dev_dbg(dev, "%s: ctxid=%llu rhndl=0x%llx gli->mode=%u gli->users=%u\n", + __func__, ctxid, release->rsrc_handle, gli->mode, gli->users); + + if (!ctxi) { + ctxi = get_context(cfg, rctxid, lli, CTX_CTRL_ERR_FALLBACK); + if (unlikely(!ctxi)) { + dev_dbg(dev, "%s: Bad context! (%llu)\n", + __func__, ctxid); + rc = -EINVAL; + goto out; + } + + put_ctx = true; + } + + rhte = get_rhte(ctxi, rhndl, lli); + if (unlikely(!rhte)) { + dev_dbg(dev, "%s: Bad resource handle! (%d)\n", + __func__, rhndl); + rc = -EINVAL; + goto out; + } + + /* + * Resize to 0 for virtual LUNS by setting the size + * to 0. This will clear LXT_START and LXT_CNT fields + * in the RHT entry and properly sync with the AFU. + * + * Afterwards we clear the remaining fields. + */ + switch (gli->mode) { + case MODE_VIRTUAL: + marshal_rele_to_resize(release, &size); + size.req_size = 0; + rc = _cxlflash_vlun_resize(sdev, ctxi, &size); + if (rc) { + dev_dbg(dev, "%s: resize failed rc %d\n", __func__, rc); + goto out; + } + + break; + case MODE_PHYSICAL: + /* + * Clear the Format 1 RHT entry for direct access + * (physical LUN) using the synchronization sequence + * defined in the SISLite specification. + */ + rhte_f1 = (struct sisl_rht_entry_f1 *)rhte; + + rhte_f1->valid = 0; + dma_wmb(); /* Make revocation of RHT entry visible */ + + rhte_f1->lun_id = 0; + dma_wmb(); /* Make clearing of LUN id visible */ + + rhte_f1->dw = 0; + dma_wmb(); /* Make RHT entry bottom-half clearing visible */ + + if (!ctxi->err_recovery_active) + cxlflash_afu_sync(afu, ctxid, rhndl, AFU_HW_SYNC); + break; + default: + WARN(1, "Unsupported LUN mode!"); + goto out; + } + + rhte_checkin(ctxi, rhte); + cxlflash_lun_detach(gli); + +out: + if (put_ctx) + put_context(ctxi); + dev_dbg(dev, "%s: returning rc=%d\n", __func__, rc); + return rc; +} + +int cxlflash_disk_release(struct scsi_device *sdev, + struct dk_cxlflash_release *release) +{ + return _cxlflash_disk_release(sdev, NULL, release); +} + +/** + * destroy_context() - releases a context + * @cfg: Internal structure associated with the host. + * @ctxi: Context to release. + * + * Note that the rht_lun member of the context was cut from a single + * allocation when the context was created and therefore does not need + * to be explicitly freed. Also note that we conditionally check for the + * existence of the context control map before clearing the RHT registers + * and context capabilities because it is possible to destroy a context + * while the context is in the error state (previous mapping was removed + * [so we don't have to worry about clearing] and context is waiting for + * a new mapping). + */ +static void destroy_context(struct cxlflash_cfg *cfg, + struct ctx_info *ctxi) +{ + struct afu *afu = cfg->afu; + + WARN_ON(!list_empty(&ctxi->luns)); + + /* Clear RHT registers and drop all capabilities for this context */ + if (afu->afu_map && ctxi->ctrl_map) { + writeq_be(0, &ctxi->ctrl_map->rht_start); + writeq_be(0, &ctxi->ctrl_map->rht_cnt_id); + writeq_be(0, &ctxi->ctrl_map->ctx_cap); + } + + /* Free memory associated with context */ + free_page((ulong)ctxi->rht_start); + kfree(ctxi->rht_needs_ws); + kfree(ctxi->rht_lun); + kfree(ctxi); + atomic_dec_if_positive(&cfg->num_user_contexts); +} + +/** + * create_context() - allocates and initializes a context + * @cfg: Internal structure associated with the host. + * @ctx: Previously obtained CXL context reference. + * @ctxid: Previously obtained process element associated with CXL context. + * @adap_fd: Previously obtained adapter fd associated with CXL context. + * @file: Previously obtained file associated with CXL context. + * @perms: User-specified permissions. + * + * The context's mutex is locked when an allocated context is returned. + * + * Return: Allocated context on success, NULL on failure + */ +static struct ctx_info *create_context(struct cxlflash_cfg *cfg, + struct cxl_context *ctx, int ctxid, + int adap_fd, struct file *file, + u32 perms) +{ + struct device *dev = &cfg->dev->dev; + struct afu *afu = cfg->afu; + struct ctx_info *ctxi = NULL; + struct llun_info **lli = NULL; + bool *ws = NULL; + struct sisl_rht_entry *rhte; + + ctxi = kzalloc(sizeof(*ctxi), GFP_KERNEL); + lli = kzalloc((MAX_RHT_PER_CONTEXT * sizeof(*lli)), GFP_KERNEL); + ws = kzalloc((MAX_RHT_PER_CONTEXT * sizeof(*ws)), GFP_KERNEL); + if (unlikely(!ctxi || !lli || !ws)) { + dev_err(dev, "%s: Unable to allocate context!\n", __func__); + goto err; + } + + rhte = (struct sisl_rht_entry *)get_zeroed_page(GFP_KERNEL); + if (unlikely(!rhte)) { + dev_err(dev, "%s: Unable to allocate RHT!\n", __func__); + goto err; + } + + ctxi->rht_lun = lli; + ctxi->rht_needs_ws = ws; + ctxi->rht_start = rhte; + ctxi->rht_perms = perms; + + ctxi->ctrl_map = &afu->afu_map->ctrls[ctxid].ctrl; + ctxi->ctxid = ENCODE_CTXID(ctxi, ctxid); + ctxi->lfd = adap_fd; + ctxi->pid = current->tgid; /* tgid = pid */ + ctxi->ctx = ctx; + ctxi->file = file; + mutex_init(&ctxi->mutex); + INIT_LIST_HEAD(&ctxi->luns); + INIT_LIST_HEAD(&ctxi->list); /* initialize for list_empty() */ + + atomic_inc(&cfg->num_user_contexts); + mutex_lock(&ctxi->mutex); +out: + return ctxi; + +err: + kfree(ws); + kfree(lli); + kfree(ctxi); + ctxi = NULL; + goto out; +} + +/** + * _cxlflash_disk_detach() - detaches a LUN from a context + * @sdev: SCSI device associated with LUN. + * @ctxi: Context owning resources. + * @detach: Detach ioctl data structure. + * + * As part of the detach, all per-context resources associated with the LUN + * are cleaned up. When detaching the last LUN for a context, the context + * itself is cleaned up and released. + * + * Return: 0 on success, -errno on failure + */ +static int _cxlflash_disk_detach(struct scsi_device *sdev, + struct ctx_info *ctxi, + struct dk_cxlflash_detach *detach) +{ + struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)sdev->host->hostdata; + struct device *dev = &cfg->dev->dev; + struct llun_info *lli = sdev->hostdata; + struct lun_access *lun_access, *t; + struct dk_cxlflash_release rel; + bool put_ctx = false; + + int i; + int rc = 0; + int lfd; + u64 ctxid = DECODE_CTXID(detach->context_id), + rctxid = detach->context_id; + + dev_dbg(dev, "%s: ctxid=%llu\n", __func__, ctxid); + + if (!ctxi) { + ctxi = get_context(cfg, rctxid, lli, CTX_CTRL_ERR_FALLBACK); + if (unlikely(!ctxi)) { + dev_dbg(dev, "%s: Bad context! (%llu)\n", + __func__, ctxid); + rc = -EINVAL; + goto out; + } + + put_ctx = true; + } + + /* Cleanup outstanding resources tied to this LUN */ + if (ctxi->rht_out) { + marshal_det_to_rele(detach, &rel); + for (i = 0; i < MAX_RHT_PER_CONTEXT; i++) { + if (ctxi->rht_lun[i] == lli) { + rel.rsrc_handle = i; + _cxlflash_disk_release(sdev, ctxi, &rel); + } + + /* No need to loop further if we're done */ + if (ctxi->rht_out == 0) + break; + } + } + + /* Take our LUN out of context, free the node */ + list_for_each_entry_safe(lun_access, t, &ctxi->luns, list) + if (lun_access->lli == lli) { + list_del(&lun_access->list); + kfree(lun_access); + lun_access = NULL; + break; + } + + /* Tear down context following last LUN cleanup */ + if (list_empty(&ctxi->luns)) { + ctxi->unavail = true; + mutex_unlock(&ctxi->mutex); + mutex_lock(&cfg->ctx_tbl_list_mutex); + mutex_lock(&ctxi->mutex); + + /* Might not have been in error list so conditionally remove */ + if (!list_empty(&ctxi->list)) + list_del(&ctxi->list); + cfg->ctx_tbl[ctxid] = NULL; + mutex_unlock(&cfg->ctx_tbl_list_mutex); + mutex_unlock(&ctxi->mutex); + + lfd = ctxi->lfd; + destroy_context(cfg, ctxi); + ctxi = NULL; + put_ctx = false; + + /* + * As a last step, clean up external resources when not + * already on an external cleanup thread, i.e.: close(adap_fd). + * + * NOTE: this will free up the context from the CXL services, + * allowing it to dole out the same context_id on a future + * (or even currently in-flight) disk_attach operation. + */ + if (lfd != -1) + sys_close(lfd); + } + +out: + if (put_ctx) + put_context(ctxi); + dev_dbg(dev, "%s: returning rc=%d\n", __func__, rc); + return rc; +} + +static int cxlflash_disk_detach(struct scsi_device *sdev, + struct dk_cxlflash_detach *detach) +{ + return _cxlflash_disk_detach(sdev, NULL, detach); +} + +/** + * cxlflash_cxl_release() - release handler for adapter file descriptor + * @inode: File-system inode associated with fd. + * @file: File installed with adapter file descriptor. + * + * This routine is the release handler for the fops registered with + * the CXL services on an initial attach for a context. It is called + * when a close is performed on the adapter file descriptor returned + * to the user. Programmatically, the user is not required to perform + * the close, as it is handled internally via the detach ioctl when + * a context is being removed. Note that nothing prevents the user + * from performing a close, but the user should be aware that doing + * so is considered catastrophic and subsequent usage of the superpipe + * API with previously saved off tokens will fail. + * + * When initiated from an external close (either by the user or via + * a process tear down), the routine derives the context reference + * and calls detach for each LUN associated with the context. The + * final detach operation will cause the context itself to be freed. + * Note that the saved off lfd is reset prior to calling detach to + * signify that the final detach should not perform a close. + * + * When initiated from a detach operation as part of the tear down + * of a context, the context is first completely freed and then the + * close is performed. This routine will fail to derive the context + * reference (due to the context having already been freed) and then + * call into the CXL release entry point. + * + * Thus, with exception to when the CXL process element (context id) + * lookup fails (a case that should theoretically never occur), every + * call into this routine results in a complete freeing of a context. + * + * As part of the detach, all per-context resources associated with the LUN + * are cleaned up. When detaching the last LUN for a context, the context + * itself is cleaned up and released. + * + * Return: 0 on success + */ +static int cxlflash_cxl_release(struct inode *inode, struct file *file) +{ + struct cxl_context *ctx = cxl_fops_get_context(file); + struct cxlflash_cfg *cfg = container_of(file->f_op, struct cxlflash_cfg, + cxl_fops); + struct device *dev = &cfg->dev->dev; + struct ctx_info *ctxi = NULL; + struct dk_cxlflash_detach detach = { { 0 }, 0 }; + struct lun_access *lun_access, *t; + enum ctx_ctrl ctrl = CTX_CTRL_ERR_FALLBACK | CTX_CTRL_FILE; + int ctxid; + + ctxid = cxl_process_element(ctx); + if (unlikely(ctxid < 0)) { + dev_err(dev, "%s: Context %p was closed! (%d)\n", + __func__, ctx, ctxid); + goto out; + } + + ctxi = get_context(cfg, ctxid, file, ctrl); + if (unlikely(!ctxi)) { + ctxi = get_context(cfg, ctxid, file, ctrl | CTX_CTRL_CLONE); + if (!ctxi) { + dev_dbg(dev, "%s: Context %d already free!\n", + __func__, ctxid); + goto out_release; + } + + dev_dbg(dev, "%s: Another process owns context %d!\n", + __func__, ctxid); + put_context(ctxi); + goto out; + } + + dev_dbg(dev, "%s: close(%d) for context %d\n", + __func__, ctxi->lfd, ctxid); + + /* Reset the file descriptor to indicate we're on a close() thread */ + ctxi->lfd = -1; + detach.context_id = ctxi->ctxid; + list_for_each_entry_safe(lun_access, t, &ctxi->luns, list) + _cxlflash_disk_detach(lun_access->sdev, ctxi, &detach); +out_release: + cxl_fd_release(inode, file); +out: + dev_dbg(dev, "%s: returning\n", __func__); + return 0; +} + +/** + * unmap_context() - clears a previously established mapping + * @ctxi: Context owning the mapping. + * + * This routine is used to switch between the error notification page + * (dummy page of all 1's) and the real mapping (established by the CXL + * fault handler). + */ +static void unmap_context(struct ctx_info *ctxi) +{ + unmap_mapping_range(ctxi->file->f_mapping, 0, 0, 1); +} + +/** + * get_err_page() - obtains and allocates the error notification page + * + * Return: error notification page on success, NULL on failure + */ +static struct page *get_err_page(void) +{ + struct page *err_page = global.err_page; + + if (unlikely(!err_page)) { + err_page = alloc_page(GFP_KERNEL); + if (unlikely(!err_page)) { + pr_err("%s: Unable to allocate err_page!\n", __func__); + goto out; + } + + memset(page_address(err_page), -1, PAGE_SIZE); + + /* Serialize update w/ other threads to avoid a leak */ + mutex_lock(&global.mutex); + if (likely(!global.err_page)) + global.err_page = err_page; + else { + __free_page(err_page); + err_page = global.err_page; + } + mutex_unlock(&global.mutex); + } + +out: + pr_debug("%s: returning err_page=%p\n", __func__, err_page); + return err_page; +} + +/** + * cxlflash_mmap_fault() - mmap fault handler for adapter file descriptor + * @vma: VM area associated with mapping. + * @vmf: VM fault associated with current fault. + * + * To support error notification via MMIO, faults are 'caught' by this routine + * that was inserted before passing back the adapter file descriptor on attach. + * When a fault occurs, this routine evaluates if error recovery is active and + * if so, installs the error page to 'notify' the user about the error state. + * During normal operation, the fault is simply handled by the original fault + * handler that was installed by CXL services as part of initializing the + * adapter file descriptor. The VMA's page protection bits are toggled to + * indicate cached/not-cached depending on the memory backing the fault. + * + * Return: 0 on success, VM_FAULT_SIGBUS on failure + */ +static int cxlflash_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf) +{ + struct file *file = vma->vm_file; + struct cxl_context *ctx = cxl_fops_get_context(file); + struct cxlflash_cfg *cfg = container_of(file->f_op, struct cxlflash_cfg, + cxl_fops); + struct device *dev = &cfg->dev->dev; + struct ctx_info *ctxi = NULL; + struct page *err_page = NULL; + enum ctx_ctrl ctrl = CTX_CTRL_ERR_FALLBACK | CTX_CTRL_FILE; + int rc = 0; + int ctxid; + + ctxid = cxl_process_element(ctx); + if (unlikely(ctxid < 0)) { + dev_err(dev, "%s: Context %p was closed! (%d)\n", + __func__, ctx, ctxid); + goto err; + } + + ctxi = get_context(cfg, ctxid, file, ctrl); + if (unlikely(!ctxi)) { + dev_dbg(dev, "%s: Bad context! (%d)\n", __func__, ctxid); + goto err; + } + + dev_dbg(dev, "%s: fault(%d) for context %d\n", + __func__, ctxi->lfd, ctxid); + + if (likely(!ctxi->err_recovery_active)) { + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); + rc = ctxi->cxl_mmap_vmops->fault(vma, vmf); + } else { + dev_dbg(dev, "%s: err recovery active, use err_page!\n", + __func__); + + err_page = get_err_page(); + if (unlikely(!err_page)) { + dev_err(dev, "%s: Could not obtain error page!\n", + __func__); + rc = VM_FAULT_RETRY; + goto out; + } + + get_page(err_page); + vmf->page = err_page; + vma->vm_page_prot = pgprot_cached(vma->vm_page_prot); + } + +out: + if (likely(ctxi)) + put_context(ctxi); + dev_dbg(dev, "%s: returning rc=%d\n", __func__, rc); + return rc; + +err: + rc = VM_FAULT_SIGBUS; + goto out; +} + +/* + * Local MMAP vmops to 'catch' faults + */ +static const struct vm_operations_struct cxlflash_mmap_vmops = { + .fault = cxlflash_mmap_fault, +}; + +/** + * cxlflash_cxl_mmap() - mmap handler for adapter file descriptor + * @file: File installed with adapter file descriptor. + * @vma: VM area associated with mapping. + * + * Installs local mmap vmops to 'catch' faults for error notification support. + * + * Return: 0 on success, -errno on failure + */ +static int cxlflash_cxl_mmap(struct file *file, struct vm_area_struct *vma) +{ + struct cxl_context *ctx = cxl_fops_get_context(file); + struct cxlflash_cfg *cfg = container_of(file->f_op, struct cxlflash_cfg, + cxl_fops); + struct device *dev = &cfg->dev->dev; + struct ctx_info *ctxi = NULL; + enum ctx_ctrl ctrl = CTX_CTRL_ERR_FALLBACK | CTX_CTRL_FILE; + int ctxid; + int rc = 0; + + ctxid = cxl_process_element(ctx); + if (unlikely(ctxid < 0)) { + dev_err(dev, "%s: Context %p was closed! (%d)\n", + __func__, ctx, ctxid); + rc = -EIO; + goto out; + } + + ctxi = get_context(cfg, ctxid, file, ctrl); + if (unlikely(!ctxi)) { + dev_dbg(dev, "%s: Bad context! (%d)\n", __func__, ctxid); + rc = -EIO; + goto out; + } + + dev_dbg(dev, "%s: mmap(%d) for context %d\n", + __func__, ctxi->lfd, ctxid); + + rc = cxl_fd_mmap(file, vma); + if (likely(!rc)) { + /* Insert ourself in the mmap fault handler path */ + ctxi->cxl_mmap_vmops = vma->vm_ops; + vma->vm_ops = &cxlflash_mmap_vmops; + } + +out: + if (likely(ctxi)) + put_context(ctxi); + return rc; +} + +/* + * Local fops for adapter file descriptor + */ +static const struct file_operations cxlflash_cxl_fops = { + .owner = THIS_MODULE, + .mmap = cxlflash_cxl_mmap, + .release = cxlflash_cxl_release, +}; + +/** + * cxlflash_mark_contexts_error() - move contexts to error state and list + * @cfg: Internal structure associated with the host. + * + * A context is only moved over to the error list when there are no outstanding + * references to it. This ensures that a running operation has completed. + * + * Return: 0 on success, -errno on failure + */ +int cxlflash_mark_contexts_error(struct cxlflash_cfg *cfg) +{ + int i, rc = 0; + struct ctx_info *ctxi = NULL; + + mutex_lock(&cfg->ctx_tbl_list_mutex); + + for (i = 0; i < MAX_CONTEXT; i++) { + ctxi = cfg->ctx_tbl[i]; + if (ctxi) { + mutex_lock(&ctxi->mutex); + cfg->ctx_tbl[i] = NULL; + list_add(&ctxi->list, &cfg->ctx_err_recovery); + ctxi->err_recovery_active = true; + ctxi->ctrl_map = NULL; + unmap_context(ctxi); + mutex_unlock(&ctxi->mutex); + } + } + + mutex_unlock(&cfg->ctx_tbl_list_mutex); + return rc; +} + +/* + * Dummy NULL fops + */ +static const struct file_operations null_fops = { + .owner = THIS_MODULE, +}; + +/** + * cxlflash_disk_attach() - attach a LUN to a context + * @sdev: SCSI device associated with LUN. + * @attach: Attach ioctl data structure. + * + * Creates a context and attaches LUN to it. A LUN can only be attached + * one time to a context (subsequent attaches for the same context/LUN pair + * are not supported). Additional LUNs can be attached to a context by + * specifying the 'reuse' flag defined in the cxlflash_ioctl.h header. + * + * Return: 0 on success, -errno on failure + */ +static int cxlflash_disk_attach(struct scsi_device *sdev, + struct dk_cxlflash_attach *attach) +{ + struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)sdev->host->hostdata; + struct device *dev = &cfg->dev->dev; + struct afu *afu = cfg->afu; + struct llun_info *lli = sdev->hostdata; + struct glun_info *gli = lli->parent; + struct cxl_ioctl_start_work *work; + struct ctx_info *ctxi = NULL; + struct lun_access *lun_access = NULL; + int rc = 0; + u32 perms; + int ctxid = -1; + u64 rctxid = 0UL; + struct file *file; + + struct cxl_context *ctx; + + int fd = -1; + + /* On first attach set fileops */ + if (atomic_read(&cfg->num_user_contexts) == 0) + cfg->cxl_fops = cxlflash_cxl_fops; + + if (attach->num_interrupts > 4) { + dev_dbg(dev, "%s: Cannot support this many interrupts %llu\n", + __func__, attach->num_interrupts); + rc = -EINVAL; + goto out; + } + + if (gli->max_lba == 0) { + dev_dbg(dev, "%s: No capacity info for this LUN (%016llX)\n", + __func__, lli->lun_id[sdev->channel]); + rc = read_cap16(sdev, lli); + if (rc) { + dev_err(dev, "%s: Invalid device! (%d)\n", + __func__, rc); + rc = -ENODEV; + goto out; + } + dev_dbg(dev, "%s: LBA = %016llX\n", __func__, gli->max_lba); + dev_dbg(dev, "%s: BLK_LEN = %08X\n", __func__, gli->blk_len); + } + + if (attach->hdr.flags & DK_CXLFLASH_ATTACH_REUSE_CONTEXT) { + rctxid = attach->context_id; + ctxi = get_context(cfg, rctxid, NULL, 0); + if (!ctxi) { + dev_dbg(dev, "%s: Bad context! (%016llX)\n", + __func__, rctxid); + rc = -EINVAL; + goto out; + } + + list_for_each_entry(lun_access, &ctxi->luns, list) + if (lun_access->lli == lli) { + dev_dbg(dev, "%s: Already attached!\n", + __func__); + rc = -EINVAL; + goto out; + } + } + + lun_access = kzalloc(sizeof(*lun_access), GFP_KERNEL); + if (unlikely(!lun_access)) { + dev_err(dev, "%s: Unable to allocate lun_access!\n", __func__); + rc = -ENOMEM; + goto out; + } + + lun_access->lli = lli; + lun_access->sdev = sdev; + + /* Non-NULL context indicates reuse */ + if (ctxi) { + dev_dbg(dev, "%s: Reusing context for LUN! (%016llX)\n", + __func__, rctxid); + list_add(&lun_access->list, &ctxi->luns); + fd = ctxi->lfd; + goto out_attach; + } + + ctx = cxl_dev_context_init(cfg->dev); + if (unlikely(IS_ERR_OR_NULL(ctx))) { + dev_err(dev, "%s: Could not initialize context %p\n", + __func__, ctx); + rc = -ENODEV; + goto err0; + } + + ctxid = cxl_process_element(ctx); + if (unlikely((ctxid > MAX_CONTEXT) || (ctxid < 0))) { + dev_err(dev, "%s: ctxid (%d) invalid!\n", __func__, ctxid); + rc = -EPERM; + goto err1; + } + + file = cxl_get_fd(ctx, &cfg->cxl_fops, &fd); + if (unlikely(fd < 0)) { + rc = -ENODEV; + dev_err(dev, "%s: Could not get file descriptor\n", __func__); + goto err1; + } + + /* Translate read/write O_* flags from fcntl.h to AFU permission bits */ + perms = SISL_RHT_PERM(attach->hdr.flags + 1); + + ctxi = create_context(cfg, ctx, ctxid, fd, file, perms); + if (unlikely(!ctxi)) { + dev_err(dev, "%s: Failed to create context! (%d)\n", + __func__, ctxid); + goto err2; + } + + work = &ctxi->work; + work->num_interrupts = attach->num_interrupts; + work->flags = CXL_START_WORK_NUM_IRQS; + + rc = cxl_start_work(ctx, work); + if (unlikely(rc)) { + dev_dbg(dev, "%s: Could not start context rc=%d\n", + __func__, rc); + goto err3; + } + + rc = afu_attach(cfg, ctxi); + if (unlikely(rc)) { + dev_err(dev, "%s: Could not attach AFU rc %d\n", __func__, rc); + goto err4; + } + + /* + * No error paths after this point. Once the fd is installed it's + * visible to user space and can't be undone safely on this thread. + * There is no need to worry about a deadlock here because no one + * knows about us yet; we can be the only one holding our mutex. + */ + list_add(&lun_access->list, &ctxi->luns); + mutex_unlock(&ctxi->mutex); + mutex_lock(&cfg->ctx_tbl_list_mutex); + mutex_lock(&ctxi->mutex); + cfg->ctx_tbl[ctxid] = ctxi; + mutex_unlock(&cfg->ctx_tbl_list_mutex); + fd_install(fd, file); + +out_attach: + attach->hdr.return_flags = 0; + attach->context_id = ctxi->ctxid; + attach->block_size = gli->blk_len; + attach->mmio_size = sizeof(afu->afu_map->hosts[0].harea); + attach->last_lba = gli->max_lba; + attach->max_xfer = (sdev->host->max_sectors * 512) / gli->blk_len; + +out: + attach->adap_fd = fd; + + if (ctxi) + put_context(ctxi); + + dev_dbg(dev, "%s: returning ctxid=%d fd=%d bs=%lld rc=%d llba=%lld\n", + __func__, ctxid, fd, attach->block_size, rc, attach->last_lba); + return rc; + +err4: + cxl_stop_context(ctx); +err3: + put_context(ctxi); + destroy_context(cfg, ctxi); + ctxi = NULL; +err2: + /* + * Here, we're overriding the fops with a dummy all-NULL fops because + * fput() calls the release fop, which will cause us to mistakenly + * call into the CXL code. Rather than try to add yet more complexity + * to that routine (cxlflash_cxl_release) we should try to fix the + * issue here. + */ + file->f_op = &null_fops; + fput(file); + put_unused_fd(fd); + fd = -1; +err1: + cxl_release_context(ctx); +err0: + kfree(lun_access); + goto out; +} + +/** + * recover_context() - recovers a context in error + * @cfg: Internal structure associated with the host. + * @ctxi: Context to release. + * + * Restablishes the state for a context-in-error. + * + * Return: 0 on success, -errno on failure + */ +static int recover_context(struct cxlflash_cfg *cfg, struct ctx_info *ctxi) +{ + struct device *dev = &cfg->dev->dev; + int rc = 0; + int old_fd, fd = -1; + int ctxid = -1; + struct file *file; + struct cxl_context *ctx; + struct afu *afu = cfg->afu; + + ctx = cxl_dev_context_init(cfg->dev); + if (unlikely(IS_ERR_OR_NULL(ctx))) { + dev_err(dev, "%s: Could not initialize context %p\n", + __func__, ctx); + rc = -ENODEV; + goto out; + } + + ctxid = cxl_process_element(ctx); + if (unlikely((ctxid > MAX_CONTEXT) || (ctxid < 0))) { + dev_err(dev, "%s: ctxid (%d) invalid!\n", __func__, ctxid); + rc = -EPERM; + goto err1; + } + + file = cxl_get_fd(ctx, &cfg->cxl_fops, &fd); + if (unlikely(fd < 0)) { + rc = -ENODEV; + dev_err(dev, "%s: Could not get file descriptor\n", __func__); + goto err1; + } + + rc = cxl_start_work(ctx, &ctxi->work); + if (unlikely(rc)) { + dev_dbg(dev, "%s: Could not start context rc=%d\n", + __func__, rc); + goto err2; + } + + /* Update with new MMIO area based on updated context id */ + ctxi->ctrl_map = &afu->afu_map->ctrls[ctxid].ctrl; + + rc = afu_attach(cfg, ctxi); + if (rc) { + dev_err(dev, "%s: Could not attach AFU rc %d\n", __func__, rc); + goto err3; + } + + /* + * No error paths after this point. Once the fd is installed it's + * visible to user space and can't be undone safely on this thread. + */ + old_fd = ctxi->lfd; + ctxi->ctxid = ENCODE_CTXID(ctxi, ctxid); + ctxi->lfd = fd; + ctxi->ctx = ctx; + ctxi->file = file; + + /* + * Put context back in table (note the reinit of the context list); + * we must first drop the context's mutex and then acquire it in + * order with the table/list mutex to avoid a deadlock - safe to do + * here because no one can find us at this moment in time. + */ + mutex_unlock(&ctxi->mutex); + mutex_lock(&cfg->ctx_tbl_list_mutex); + mutex_lock(&ctxi->mutex); + list_del_init(&ctxi->list); + cfg->ctx_tbl[ctxid] = ctxi; + mutex_unlock(&cfg->ctx_tbl_list_mutex); + fd_install(fd, file); + + /* Release the original adapter fd and associated CXL resources */ + sys_close(old_fd); +out: + dev_dbg(dev, "%s: returning ctxid=%d fd=%d rc=%d\n", + __func__, ctxid, fd, rc); + return rc; + +err3: + cxl_stop_context(ctx); +err2: + fput(file); + put_unused_fd(fd); +err1: + cxl_release_context(ctx); + goto out; +} + +/** + * check_state() - checks and responds to the current adapter state + * @cfg: Internal structure associated with the host. + * + * This routine can block and should only be used on process context. + * Note that when waking up from waiting in limbo, the state is unknown + * and must be checked again before proceeding. + * + * Return: 0 on success, -errno on failure + */ +static int check_state(struct cxlflash_cfg *cfg) +{ + struct device *dev = &cfg->dev->dev; + int rc = 0; + +retry: + switch (cfg->state) { + case STATE_LIMBO: + dev_dbg(dev, "%s: Limbo, going to wait...\n", __func__); + rc = wait_event_interruptible(cfg->limbo_waitq, + cfg->state != STATE_LIMBO); + if (unlikely(rc)) + break; + goto retry; + case STATE_FAILTERM: + dev_dbg(dev, "%s: Failed/Terminating!\n", __func__); + rc = -ENODEV; + break; + default: + break; + } + + return rc; +} + +/** + * cxlflash_afu_recover() - initiates AFU recovery + * @sdev: SCSI device associated with LUN. + * @recover: Recover ioctl data structure. + * + * Only a single recovery is allowed at a time to avoid exhausting CXL + * resources (leading to recovery failure) in the event that we're up + * against the maximum number of contexts limit. For similar reasons, + * a context recovery is retried if there are multiple recoveries taking + * place at the same time and the failure was due to CXL services being + * unable to keep up. + * + * Because a user can detect an error condition before the kernel, it is + * quite possible for this routine to act as the kernel's EEH detection + * source (MMIO read of mbox_r). Because of this, there is a window of + * time where an EEH might have been detected but not yet 'serviced' + * (callback invoked, causing the device to enter limbo state). To avoid + * looping in this routine during that window, a 1 second sleep is in place + * between the time the MMIO failure is detected and the time a wait on the + * limbo wait queue is attempted via check_state(). + * + * Return: 0 on success, -errno on failure + */ +static int cxlflash_afu_recover(struct scsi_device *sdev, + struct dk_cxlflash_recover_afu *recover) +{ + struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)sdev->host->hostdata; + struct device *dev = &cfg->dev->dev; + struct llun_info *lli = sdev->hostdata; + struct afu *afu = cfg->afu; + struct ctx_info *ctxi = NULL; + struct mutex *mutex = &cfg->ctx_recovery_mutex; + u64 ctxid = DECODE_CTXID(recover->context_id), + rctxid = recover->context_id; + long reg; + int lretry = 20; /* up to 2 seconds */ + int rc = 0; + + atomic_inc(&cfg->recovery_threads); + rc = mutex_lock_interruptible(mutex); + if (rc) + goto out; + + dev_dbg(dev, "%s: reason 0x%016llX rctxid=%016llX\n", + __func__, recover->reason, rctxid); + +retry: + /* Ensure that this process is attached to the context */ + ctxi = get_context(cfg, rctxid, lli, CTX_CTRL_ERR_FALLBACK); + if (unlikely(!ctxi)) { + dev_dbg(dev, "%s: Bad context! (%llu)\n", __func__, ctxid); + rc = -EINVAL; + goto out; + } + + if (ctxi->err_recovery_active) { +retry_recover: + rc = recover_context(cfg, ctxi); + if (unlikely(rc)) { + dev_err(dev, "%s: Recovery failed for context %llu (rc=%d)\n", + __func__, ctxid, rc); + if ((rc == -ENODEV) && + ((atomic_read(&cfg->recovery_threads) > 1) || + (lretry--))) { + dev_dbg(dev, "%s: Going to try again!\n", + __func__); + mutex_unlock(mutex); + msleep(100); + rc = mutex_lock_interruptible(mutex); + if (rc) + goto out; + goto retry_recover; + } + + goto out; + } + + ctxi->err_recovery_active = false; + recover->context_id = ctxi->ctxid; + recover->adap_fd = ctxi->lfd; + recover->mmio_size = sizeof(afu->afu_map->hosts[0].harea); + recover->hdr.return_flags |= + DK_CXLFLASH_RECOVER_AFU_CONTEXT_RESET; + goto out; + } + + /* Test if in error state */ + reg = readq_be(&afu->ctrl_map->mbox_r); + if (reg == -1) { + dev_dbg(dev, "%s: MMIO read fail! Wait for recovery...\n", + __func__); + mutex_unlock(&ctxi->mutex); + ctxi = NULL; + ssleep(1); + rc = check_state(cfg); + if (unlikely(rc)) + goto out; + goto retry; + } + + dev_dbg(dev, "%s: MMIO working, no recovery required!\n", __func__); +out: + if (likely(ctxi)) + put_context(ctxi); + mutex_unlock(mutex); + atomic_dec_if_positive(&cfg->recovery_threads); + return rc; +} + +/** + * process_sense() - evaluates and processes sense data + * @sdev: SCSI device associated with LUN. + * @verify: Verify ioctl data structure. + * + * Return: 0 on success, -errno on failure + */ +static int process_sense(struct scsi_device *sdev, + struct dk_cxlflash_verify *verify) +{ + struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)sdev->host->hostdata; + struct device *dev = &cfg->dev->dev; + struct llun_info *lli = sdev->hostdata; + struct glun_info *gli = lli->parent; + u64 prev_lba = gli->max_lba; + struct scsi_sense_hdr sshdr = { 0 }; + int rc = 0; + + rc = scsi_normalize_sense((const u8 *)&verify->sense_data, + DK_CXLFLASH_VERIFY_SENSE_LEN, &sshdr); + if (!rc) { + dev_err(dev, "%s: Failed to normalize sense data!\n", __func__); + rc = -EINVAL; + goto out; + } + + switch (sshdr.sense_key) { + case NO_SENSE: + case RECOVERED_ERROR: + /* fall through */ + case NOT_READY: + break; + case UNIT_ATTENTION: + switch (sshdr.asc) { + case 0x29: /* Power on Reset or Device Reset */ + /* fall through */ + case 0x2A: /* Device settings/capacity changed */ + rc = read_cap16(sdev, lli); + if (rc) { + rc = -ENODEV; + break; + } + if (prev_lba != gli->max_lba) + dev_dbg(dev, "%s: Capacity changed old=%lld " + "new=%lld\n", __func__, prev_lba, + gli->max_lba); + break; + case 0x3F: /* Report LUNs changed, Rescan. */ + scsi_scan_host(cfg->host); + break; + default: + rc = -EIO; + break; + } + break; + default: + rc = -EIO; + break; + } +out: + dev_dbg(dev, "%s: sense_key %x asc %x ascq %x rc %d\n", __func__, + sshdr.sense_key, sshdr.asc, sshdr.ascq, rc); + return rc; +} + +/** + * cxlflash_disk_verify() - verifies a LUN is the same and handle size changes + * @sdev: SCSI device associated with LUN. + * @verify: Verify ioctl data structure. + * + * Return: 0 on success, -errno on failure + */ +static int cxlflash_disk_verify(struct scsi_device *sdev, + struct dk_cxlflash_verify *verify) +{ + int rc = 0; + struct ctx_info *ctxi = NULL; + struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)sdev->host->hostdata; + struct device *dev = &cfg->dev->dev; + struct llun_info *lli = sdev->hostdata; + struct glun_info *gli = lli->parent; + struct sisl_rht_entry *rhte = NULL; + res_hndl_t rhndl = verify->rsrc_handle; + u64 ctxid = DECODE_CTXID(verify->context_id), + rctxid = verify->context_id; + u64 last_lba = 0; + + dev_dbg(dev, "%s: ctxid=%llu rhndl=%016llX, hint=%016llX, " + "flags=%016llX\n", __func__, ctxid, verify->rsrc_handle, + verify->hint, verify->hdr.flags); + + ctxi = get_context(cfg, rctxid, lli, 0); + if (unlikely(!ctxi)) { + dev_dbg(dev, "%s: Bad context! (%llu)\n", __func__, ctxid); + rc = -EINVAL; + goto out; + } + + rhte = get_rhte(ctxi, rhndl, lli); + if (unlikely(!rhte)) { + dev_dbg(dev, "%s: Bad resource handle! (%d)\n", + __func__, rhndl); + rc = -EINVAL; + goto out; + } + + /* + * Look at the hint/sense to see if it requires us to redrive + * inquiry (i.e. the Unit attention is due to the WWN changing). + */ + if (verify->hint & DK_CXLFLASH_VERIFY_HINT_SENSE) { + rc = process_sense(sdev, verify); + if (unlikely(rc)) { + dev_err(dev, "%s: Failed to validate sense data (%d)\n", + __func__, rc); + goto out; + } + } + + switch (gli->mode) { + case MODE_PHYSICAL: + last_lba = gli->max_lba; + break; + case MODE_VIRTUAL: + /* Cast lxt_cnt to u64 for multiply to be treated as 64bit op */ + last_lba = ((u64)rhte->lxt_cnt * MC_CHUNK_SIZE * gli->blk_len); + last_lba /= CXLFLASH_BLOCK_SIZE; + last_lba--; + break; + default: + WARN(1, "Unsupported LUN mode!"); + } + + verify->last_lba = last_lba; + +out: + if (likely(ctxi)) + put_context(ctxi); + dev_dbg(dev, "%s: returning rc=%d llba=%llX\n", + __func__, rc, verify->last_lba); + return rc; +} + +/** + * decode_ioctl() - translates an encoded ioctl to an easily identifiable string + * @cmd: The ioctl command to decode. + * + * Return: A string identifying the decoded ioctl. + */ +static char *decode_ioctl(int cmd) +{ + switch (cmd) { + case DK_CXLFLASH_ATTACH: + return __stringify_1(DK_CXLFLASH_ATTACH); + case DK_CXLFLASH_USER_DIRECT: + return __stringify_1(DK_CXLFLASH_USER_DIRECT); + case DK_CXLFLASH_USER_VIRTUAL: + return __stringify_1(DK_CXLFLASH_USER_VIRTUAL); + case DK_CXLFLASH_VLUN_RESIZE: + return __stringify_1(DK_CXLFLASH_VLUN_RESIZE); + case DK_CXLFLASH_RELEASE: + return __stringify_1(DK_CXLFLASH_RELEASE); + case DK_CXLFLASH_DETACH: + return __stringify_1(DK_CXLFLASH_DETACH); + case DK_CXLFLASH_VERIFY: + return __stringify_1(DK_CXLFLASH_VERIFY); + case DK_CXLFLASH_VLUN_CLONE: + return __stringify_1(DK_CXLFLASH_VLUN_CLONE); + case DK_CXLFLASH_RECOVER_AFU: + return __stringify_1(DK_CXLFLASH_RECOVER_AFU); + case DK_CXLFLASH_MANAGE_LUN: + return __stringify_1(DK_CXLFLASH_MANAGE_LUN); + } + + return "UNKNOWN"; +} + +/** + * cxlflash_disk_direct_open() - opens a direct (physical) disk + * @sdev: SCSI device associated with LUN. + * @arg: UDirect ioctl data structure. + * + * On successful return, the user is informed of the resource handle + * to be used to identify the direct lun and the size (in blocks) of + * the direct lun in last LBA format. + * + * Return: 0 on success, -errno on failure + */ +static int cxlflash_disk_direct_open(struct scsi_device *sdev, void *arg) +{ + struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)sdev->host->hostdata; + struct device *dev = &cfg->dev->dev; + struct afu *afu = cfg->afu; + struct llun_info *lli = sdev->hostdata; + struct glun_info *gli = lli->parent; + + struct dk_cxlflash_udirect *pphys = (struct dk_cxlflash_udirect *)arg; + + u64 ctxid = DECODE_CTXID(pphys->context_id), + rctxid = pphys->context_id; + u64 lun_size = 0; + u64 last_lba = 0; + u64 rsrc_handle = -1; + u32 port = CHAN2PORT(sdev->channel); + + int rc = 0; + + struct ctx_info *ctxi = NULL; + struct sisl_rht_entry *rhte = NULL; + + pr_debug("%s: ctxid=%llu ls=0x%llx\n", __func__, ctxid, lun_size); + + rc = cxlflash_lun_attach(gli, MODE_PHYSICAL, false); + if (unlikely(rc)) { + dev_dbg(dev, "%s: Failed to attach to LUN! (PHYSICAL)\n", + __func__); + goto out; + } + + ctxi = get_context(cfg, rctxid, lli, 0); + if (unlikely(!ctxi)) { + dev_dbg(dev, "%s: Bad context! (%llu)\n", __func__, ctxid); + rc = -EINVAL; + goto err1; + } + + rhte = rhte_checkout(ctxi, lli); + if (unlikely(!rhte)) { + dev_dbg(dev, "%s: too many opens for this context\n", __func__); + rc = -EMFILE; /* too many opens */ + goto err1; + } + + rsrc_handle = (rhte - ctxi->rht_start); + + rht_format1(rhte, lli->lun_id[sdev->channel], ctxi->rht_perms, port); + cxlflash_afu_sync(afu, ctxid, rsrc_handle, AFU_LW_SYNC); + + last_lba = gli->max_lba; + pphys->hdr.return_flags = 0; + pphys->last_lba = last_lba; + pphys->rsrc_handle = rsrc_handle; + +out: + if (likely(ctxi)) + put_context(ctxi); + dev_dbg(dev, "%s: returning handle 0x%llx rc=%d llba %lld\n", + __func__, rsrc_handle, rc, last_lba); + return rc; + +err1: + cxlflash_lun_detach(gli); + goto out; +} + +/** + * ioctl_common() - common IOCTL handler for driver + * @sdev: SCSI device associated with LUN. + * @cmd: IOCTL command. + * + * Handles common fencing operations that are valid for multiple ioctls. Always + * allow through ioctls that are cleanup oriented in nature, even when operating + * in a failed/terminating state. + * + * Return: 0 on success, -errno on failure + */ +static int ioctl_common(struct scsi_device *sdev, int cmd) +{ + struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)sdev->host->hostdata; + struct device *dev = &cfg->dev->dev; + struct llun_info *lli = sdev->hostdata; + int rc = 0; + + if (unlikely(!lli)) { + dev_dbg(dev, "%s: Unknown LUN\n", __func__); + rc = -EINVAL; + goto out; + } + + rc = check_state(cfg); + if (unlikely(rc) && (cfg->state == STATE_FAILTERM)) { + switch (cmd) { + case DK_CXLFLASH_VLUN_RESIZE: + case DK_CXLFLASH_RELEASE: + case DK_CXLFLASH_DETACH: + dev_dbg(dev, "%s: Command override! (%d)\n", + __func__, rc); + rc = 0; + break; + } + } +out: + return rc; +} + +/** + * cxlflash_ioctl() - IOCTL handler for driver + * @sdev: SCSI device associated with LUN. + * @cmd: IOCTL command. + * @arg: Userspace ioctl data structure. + * + * Return: 0 on success, -errno on failure + */ +int cxlflash_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) +{ + typedef int (*sioctl) (struct scsi_device *, void *); + + struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)sdev->host->hostdata; + struct device *dev = &cfg->dev->dev; + struct afu *afu = cfg->afu; + struct dk_cxlflash_hdr *hdr; + char buf[sizeof(union cxlflash_ioctls)]; + size_t size = 0; + bool known_ioctl = false; + int idx; + int rc = 0; + struct Scsi_Host *shost = sdev->host; + sioctl do_ioctl = NULL; + + static const struct { + size_t size; + sioctl ioctl; + } ioctl_tbl[] = { /* NOTE: order matters here */ + {sizeof(struct dk_cxlflash_attach), (sioctl)cxlflash_disk_attach}, + {sizeof(struct dk_cxlflash_udirect), cxlflash_disk_direct_open}, + {sizeof(struct dk_cxlflash_release), (sioctl)cxlflash_disk_release}, + {sizeof(struct dk_cxlflash_detach), (sioctl)cxlflash_disk_detach}, + {sizeof(struct dk_cxlflash_verify), (sioctl)cxlflash_disk_verify}, + {sizeof(struct dk_cxlflash_recover_afu), (sioctl)cxlflash_afu_recover}, + {sizeof(struct dk_cxlflash_manage_lun), (sioctl)cxlflash_manage_lun}, + {sizeof(struct dk_cxlflash_uvirtual), cxlflash_disk_virtual_open}, + {sizeof(struct dk_cxlflash_resize), (sioctl)cxlflash_vlun_resize}, + {sizeof(struct dk_cxlflash_clone), (sioctl)cxlflash_disk_clone}, + }; + + /* Restrict command set to physical support only for internal LUN */ + if (afu->internal_lun) + switch (cmd) { + case DK_CXLFLASH_RELEASE: + case DK_CXLFLASH_USER_VIRTUAL: + case DK_CXLFLASH_VLUN_RESIZE: + case DK_CXLFLASH_VLUN_CLONE: + dev_dbg(dev, "%s: %s not supported for lun_mode=%d\n", + __func__, decode_ioctl(cmd), afu->internal_lun); + rc = -EINVAL; + goto cxlflash_ioctl_exit; + } + + switch (cmd) { + case DK_CXLFLASH_ATTACH: + case DK_CXLFLASH_USER_DIRECT: + case DK_CXLFLASH_RELEASE: + case DK_CXLFLASH_DETACH: + case DK_CXLFLASH_VERIFY: + case DK_CXLFLASH_RECOVER_AFU: + case DK_CXLFLASH_USER_VIRTUAL: + case DK_CXLFLASH_VLUN_RESIZE: + case DK_CXLFLASH_VLUN_CLONE: + dev_dbg(dev, "%s: %s (%08X) on dev(%d/%d/%d/%llu)\n", + __func__, decode_ioctl(cmd), cmd, shost->host_no, + sdev->channel, sdev->id, sdev->lun); + rc = ioctl_common(sdev, cmd); + if (unlikely(rc)) + goto cxlflash_ioctl_exit; + + /* fall through */ + + case DK_CXLFLASH_MANAGE_LUN: + known_ioctl = true; + idx = _IOC_NR(cmd) - _IOC_NR(DK_CXLFLASH_ATTACH); + size = ioctl_tbl[idx].size; + do_ioctl = ioctl_tbl[idx].ioctl; + + if (likely(do_ioctl)) + break; + + /* fall through */ + default: + rc = -EINVAL; + goto cxlflash_ioctl_exit; + } + + if (unlikely(copy_from_user(&buf, arg, size))) { + dev_err(dev, "%s: copy_from_user() fail! " + "size=%lu cmd=%d (%s) arg=%p\n", + __func__, size, cmd, decode_ioctl(cmd), arg); + rc = -EFAULT; + goto cxlflash_ioctl_exit; + } + + hdr = (struct dk_cxlflash_hdr *)&buf; + if (hdr->version != DK_CXLFLASH_VERSION_0) { + dev_dbg(dev, "%s: Version %u not supported for %s\n", + __func__, hdr->version, decode_ioctl(cmd)); + rc = -EINVAL; + goto cxlflash_ioctl_exit; + } + + if (hdr->rsvd[0] || hdr->rsvd[1] || hdr->rsvd[2] || hdr->return_flags) { + dev_dbg(dev, "%s: Reserved/rflags populated!\n", __func__); + rc = -EINVAL; + goto cxlflash_ioctl_exit; + } + + rc = do_ioctl(sdev, (void *)&buf); + if (likely(!rc)) + if (unlikely(copy_to_user(arg, &buf, size))) { + dev_err(dev, "%s: copy_to_user() fail! " + "size=%lu cmd=%d (%s) arg=%p\n", + __func__, size, cmd, decode_ioctl(cmd), arg); + rc = -EFAULT; + } + + /* fall through to exit */ + +cxlflash_ioctl_exit: + if (unlikely(rc && known_ioctl)) + dev_err(dev, "%s: ioctl %s (%08X) on dev(%d/%d/%d/%llu) " + "returned rc %d\n", __func__, + decode_ioctl(cmd), cmd, shost->host_no, + sdev->channel, sdev->id, sdev->lun, rc); + else + dev_dbg(dev, "%s: ioctl %s (%08X) on dev(%d/%d/%d/%llu) " + "returned rc %d\n", __func__, decode_ioctl(cmd), + cmd, shost->host_no, sdev->channel, sdev->id, + sdev->lun, rc); + return rc; +} diff --git a/drivers/scsi/cxlflash/superpipe.h b/drivers/scsi/cxlflash/superpipe.h new file mode 100644 index 000000000000..d7dc88bc64a4 --- /dev/null +++ b/drivers/scsi/cxlflash/superpipe.h @@ -0,0 +1,147 @@ +/* + * CXL Flash Device Driver + * + * Written by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>, IBM Corporation + * Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation + * + * Copyright (C) 2015 IBM Corporation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#ifndef _CXLFLASH_SUPERPIPE_H +#define _CXLFLASH_SUPERPIPE_H + +extern struct cxlflash_global global; + +/* + * Terminology: use afu (and not adapter) to refer to the HW. + * Adapter is the entire slot and includes PSL out of which + * only the AFU is visible to user space. + */ + +/* Chunk size parms: note sislite minimum chunk size is + 0x10000 LBAs corresponding to a NMASK or 16. +*/ +#define MC_CHUNK_SIZE (1 << MC_RHT_NMASK) /* in LBAs */ + +#define MC_DISCOVERY_TIMEOUT 5 /* 5 secs */ + +#define CHAN2PORT(_x) ((_x) + 1) +#define PORT2CHAN(_x) ((_x) - 1) + +enum lun_mode { + MODE_NONE = 0, + MODE_VIRTUAL, + MODE_PHYSICAL +}; + +/* Global (entire driver, spans adapters) lun_info structure */ +struct glun_info { + u64 max_lba; /* from read cap(16) */ + u32 blk_len; /* from read cap(16) */ + enum lun_mode mode; /* NONE, VIRTUAL, PHYSICAL */ + int users; /* Number of users w/ references to LUN */ + + u8 wwid[16]; + + struct mutex mutex; + + struct blka blka; + struct list_head list; +}; + +/* Local (per-adapter) lun_info structure */ +struct llun_info { + u64 lun_id[CXLFLASH_NUM_FC_PORTS]; /* from REPORT_LUNS */ + u32 lun_index; /* Index in the LUN table */ + u32 host_no; /* host_no from Scsi_host */ + u32 port_sel; /* What port to use for this LUN */ + bool newly_created; /* Whether the LUN was just discovered */ + bool in_table; /* Whether a LUN table entry was created */ + + u8 wwid[16]; /* Keep a duplicate copy here? */ + + struct glun_info *parent; /* Pointer to entry in global LUN structure */ + struct scsi_device *sdev; + struct list_head list; +}; + +struct lun_access { + struct llun_info *lli; + struct scsi_device *sdev; + struct list_head list; +}; + +enum ctx_ctrl { + CTX_CTRL_CLONE = (1 << 1), + CTX_CTRL_ERR = (1 << 2), + CTX_CTRL_ERR_FALLBACK = (1 << 3), + CTX_CTRL_NOPID = (1 << 4), + CTX_CTRL_FILE = (1 << 5) +}; + +#define ENCODE_CTXID(_ctx, _id) (((((u64)_ctx) & 0xFFFFFFFF0) << 28) | _id) +#define DECODE_CTXID(_val) (_val & 0xFFFFFFFF) + +struct ctx_info { + struct sisl_ctrl_map *ctrl_map; /* initialized at startup */ + struct sisl_rht_entry *rht_start; /* 1 page (req'd for alignment), + alloc/free on attach/detach */ + u32 rht_out; /* Number of checked out RHT entries */ + u32 rht_perms; /* User-defined permissions for RHT entries */ + struct llun_info **rht_lun; /* Mapping of RHT entries to LUNs */ + bool *rht_needs_ws; /* User-desired write-same function per RHTE */ + + struct cxl_ioctl_start_work work; + u64 ctxid; + int lfd; + pid_t pid; + bool unavail; + bool err_recovery_active; + struct mutex mutex; /* Context protection */ + struct cxl_context *ctx; + struct list_head luns; /* LUNs attached to this context */ + const struct vm_operations_struct *cxl_mmap_vmops; + struct file *file; + struct list_head list; /* Link contexts in error recovery */ +}; + +struct cxlflash_global { + struct mutex mutex; + struct list_head gluns;/* list of glun_info structs */ + struct page *err_page; /* One page of all 0xF for error notification */ +}; + +int cxlflash_vlun_resize(struct scsi_device *, struct dk_cxlflash_resize *); +int _cxlflash_vlun_resize(struct scsi_device *, struct ctx_info *, + struct dk_cxlflash_resize *); + +int cxlflash_disk_release(struct scsi_device *, struct dk_cxlflash_release *); +int _cxlflash_disk_release(struct scsi_device *, struct ctx_info *, + struct dk_cxlflash_release *); + +int cxlflash_disk_clone(struct scsi_device *, struct dk_cxlflash_clone *); + +int cxlflash_disk_virtual_open(struct scsi_device *, void *); + +int cxlflash_lun_attach(struct glun_info *, enum lun_mode, bool); +void cxlflash_lun_detach(struct glun_info *); + +struct ctx_info *get_context(struct cxlflash_cfg *, u64, void *, enum ctx_ctrl); +void put_context(struct ctx_info *); + +struct sisl_rht_entry *get_rhte(struct ctx_info *, res_hndl_t, + struct llun_info *); + +struct sisl_rht_entry *rhte_checkout(struct ctx_info *, struct llun_info *); +void rhte_checkin(struct ctx_info *, struct sisl_rht_entry *); + +void cxlflash_ba_terminate(struct ba_lun *); + +int cxlflash_manage_lun(struct scsi_device *, struct dk_cxlflash_manage_lun *); + +#endif /* ifndef _CXLFLASH_SUPERPIPE_H */ diff --git a/drivers/scsi/cxlflash/vlun.c b/drivers/scsi/cxlflash/vlun.c new file mode 100644 index 000000000000..6155cb1d4ed3 --- /dev/null +++ b/drivers/scsi/cxlflash/vlun.c @@ -0,0 +1,1243 @@ +/* + * CXL Flash Device Driver + * + * Written by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>, IBM Corporation + * Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation + * + * Copyright (C) 2015 IBM Corporation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#include <linux/syscalls.h> +#include <misc/cxl.h> +#include <asm/unaligned.h> +#include <asm/bitsperlong.h> + +#include <scsi/scsi_cmnd.h> +#include <scsi/scsi_host.h> +#include <uapi/scsi/cxlflash_ioctl.h> + +#include "sislite.h" +#include "common.h" +#include "vlun.h" +#include "superpipe.h" + +/** + * marshal_virt_to_resize() - translate uvirtual to resize structure + * @virt: Source structure from which to translate/copy. + * @resize: Destination structure for the translate/copy. + */ +static void marshal_virt_to_resize(struct dk_cxlflash_uvirtual *virt, + struct dk_cxlflash_resize *resize) +{ + resize->hdr = virt->hdr; + resize->context_id = virt->context_id; + resize->rsrc_handle = virt->rsrc_handle; + resize->req_size = virt->lun_size; + resize->last_lba = virt->last_lba; +} + +/** + * marshal_clone_to_rele() - translate clone to release structure + * @clone: Source structure from which to translate/copy. + * @rele: Destination structure for the translate/copy. + */ +static void marshal_clone_to_rele(struct dk_cxlflash_clone *clone, + struct dk_cxlflash_release *release) +{ + release->hdr = clone->hdr; + release->context_id = clone->context_id_dst; +} + +/** + * ba_init() - initializes a block allocator + * @ba_lun: Block allocator to initialize. + * + * Return: 0 on success, -errno on failure + */ +static int ba_init(struct ba_lun *ba_lun) +{ + struct ba_lun_info *bali = NULL; + int lun_size_au = 0, i = 0; + int last_word_underflow = 0; + u64 *lam; + + pr_debug("%s: Initializing LUN: lun_id = %llX, " + "ba_lun->lsize = %lX, ba_lun->au_size = %lX\n", + __func__, ba_lun->lun_id, ba_lun->lsize, ba_lun->au_size); + + /* Calculate bit map size */ + lun_size_au = ba_lun->lsize / ba_lun->au_size; + if (lun_size_au == 0) { + pr_debug("%s: Requested LUN size of 0!\n", __func__); + return -EINVAL; + } + + /* Allocate lun information container */ + bali = kzalloc(sizeof(struct ba_lun_info), GFP_KERNEL); + if (unlikely(!bali)) { + pr_err("%s: Failed to allocate lun_info for lun_id %llX\n", + __func__, ba_lun->lun_id); + return -ENOMEM; + } + + bali->total_aus = lun_size_au; + bali->lun_bmap_size = lun_size_au / BITS_PER_LONG; + + if (lun_size_au % BITS_PER_LONG) + bali->lun_bmap_size++; + + /* Allocate bitmap space */ + bali->lun_alloc_map = kzalloc((bali->lun_bmap_size * sizeof(u64)), + GFP_KERNEL); + if (unlikely(!bali->lun_alloc_map)) { + pr_err("%s: Failed to allocate lun allocation map: " + "lun_id = %llX\n", __func__, ba_lun->lun_id); + kfree(bali); + return -ENOMEM; + } + + /* Initialize the bit map size and set all bits to '1' */ + bali->free_aun_cnt = lun_size_au; + + for (i = 0; i < bali->lun_bmap_size; i++) + bali->lun_alloc_map[i] = 0xFFFFFFFFFFFFFFFFULL; + + /* If the last word not fully utilized, mark extra bits as allocated */ + last_word_underflow = (bali->lun_bmap_size * BITS_PER_LONG); + last_word_underflow -= bali->free_aun_cnt; + if (last_word_underflow > 0) { + lam = &bali->lun_alloc_map[bali->lun_bmap_size - 1]; + for (i = (HIBIT - last_word_underflow + 1); + i < BITS_PER_LONG; + i++) + clear_bit(i, (ulong *)lam); + } + + /* Initialize high elevator index, low/curr already at 0 from kzalloc */ + bali->free_high_idx = bali->lun_bmap_size; + + /* Allocate clone map */ + bali->aun_clone_map = kzalloc((bali->total_aus * sizeof(u8)), + GFP_KERNEL); + if (unlikely(!bali->aun_clone_map)) { + pr_err("%s: Failed to allocate clone map: lun_id = %llX\n", + __func__, ba_lun->lun_id); + kfree(bali->lun_alloc_map); + kfree(bali); + return -ENOMEM; + } + + /* Pass the allocated lun info as a handle to the user */ + ba_lun->ba_lun_handle = bali; + + pr_debug("%s: Successfully initialized the LUN: " + "lun_id = %llX, bitmap size = %X, free_aun_cnt = %llX\n", + __func__, ba_lun->lun_id, bali->lun_bmap_size, + bali->free_aun_cnt); + return 0; +} + +/** + * find_free_range() - locates a free bit within the block allocator + * @low: First word in block allocator to start search. + * @high: Last word in block allocator to search. + * @bali: LUN information structure owning the block allocator to search. + * @bit_word: Passes back the word in the block allocator owning the free bit. + * + * Return: The bit position within the passed back word, -1 on failure + */ +static int find_free_range(u32 low, + u32 high, + struct ba_lun_info *bali, int *bit_word) +{ + int i; + u64 bit_pos = -1; + ulong *lam, num_bits; + + for (i = low; i < high; i++) + if (bali->lun_alloc_map[i] != 0) { + lam = (ulong *)&bali->lun_alloc_map[i]; + num_bits = (sizeof(*lam) * BITS_PER_BYTE); + bit_pos = find_first_bit(lam, num_bits); + + pr_devel("%s: Found free bit %llX in lun " + "map entry %llX at bitmap index = %X\n", + __func__, bit_pos, bali->lun_alloc_map[i], + i); + + *bit_word = i; + bali->free_aun_cnt--; + clear_bit(bit_pos, lam); + break; + } + + return bit_pos; +} + +/** + * ba_alloc() - allocates a block from the block allocator + * @ba_lun: Block allocator from which to allocate a block. + * + * Return: The allocated block, -1 on failure + */ +static u64 ba_alloc(struct ba_lun *ba_lun) +{ + u64 bit_pos = -1; + int bit_word = 0; + struct ba_lun_info *bali = NULL; + + bali = ba_lun->ba_lun_handle; + + pr_debug("%s: Received block allocation request: " + "lun_id = %llX, free_aun_cnt = %llX\n", + __func__, ba_lun->lun_id, bali->free_aun_cnt); + + if (bali->free_aun_cnt == 0) { + pr_debug("%s: No space left on LUN: lun_id = %llX\n", + __func__, ba_lun->lun_id); + return -1ULL; + } + + /* Search to find a free entry, curr->high then low->curr */ + bit_pos = find_free_range(bali->free_curr_idx, + bali->free_high_idx, bali, &bit_word); + if (bit_pos == -1) { + bit_pos = find_free_range(bali->free_low_idx, + bali->free_curr_idx, + bali, &bit_word); + if (bit_pos == -1) { + pr_debug("%s: Could not find an allocation unit on LUN:" + " lun_id = %llX\n", __func__, ba_lun->lun_id); + return -1ULL; + } + } + + /* Update the free_curr_idx */ + if (bit_pos == HIBIT) + bali->free_curr_idx = bit_word + 1; + else + bali->free_curr_idx = bit_word; + + pr_debug("%s: Allocating AU number %llX, on lun_id %llX, " + "free_aun_cnt = %llX\n", __func__, + ((bit_word * BITS_PER_LONG) + bit_pos), ba_lun->lun_id, + bali->free_aun_cnt); + + return (u64) ((bit_word * BITS_PER_LONG) + bit_pos); +} + +/** + * validate_alloc() - validates the specified block has been allocated + * @ba_lun_info: LUN info owning the block allocator. + * @aun: Block to validate. + * + * Return: 0 on success, -1 on failure + */ +static int validate_alloc(struct ba_lun_info *bali, u64 aun) +{ + int idx = 0, bit_pos = 0; + + idx = aun / BITS_PER_LONG; + bit_pos = aun % BITS_PER_LONG; + + if (test_bit(bit_pos, (ulong *)&bali->lun_alloc_map[idx])) + return -1; + + return 0; +} + +/** + * ba_free() - frees a block from the block allocator + * @ba_lun: Block allocator from which to allocate a block. + * @to_free: Block to free. + * + * Return: 0 on success, -1 on failure + */ +static int ba_free(struct ba_lun *ba_lun, u64 to_free) +{ + int idx = 0, bit_pos = 0; + struct ba_lun_info *bali = NULL; + + bali = ba_lun->ba_lun_handle; + + if (validate_alloc(bali, to_free)) { + pr_debug("%s: The AUN %llX is not allocated on lun_id %llX\n", + __func__, to_free, ba_lun->lun_id); + return -1; + } + + pr_debug("%s: Received a request to free AU %llX on lun_id %llX, " + "free_aun_cnt = %llX\n", __func__, to_free, ba_lun->lun_id, + bali->free_aun_cnt); + + if (bali->aun_clone_map[to_free] > 0) { + pr_debug("%s: AUN %llX on lun_id %llX has been cloned. Clone " + "count = %X\n", __func__, to_free, ba_lun->lun_id, + bali->aun_clone_map[to_free]); + bali->aun_clone_map[to_free]--; + return 0; + } + + idx = to_free / BITS_PER_LONG; + bit_pos = to_free % BITS_PER_LONG; + + set_bit(bit_pos, (ulong *)&bali->lun_alloc_map[idx]); + bali->free_aun_cnt++; + + if (idx < bali->free_low_idx) + bali->free_low_idx = idx; + else if (idx > bali->free_high_idx) + bali->free_high_idx = idx; + + pr_debug("%s: Successfully freed AU at bit_pos %X, bit map index %X on " + "lun_id %llX, free_aun_cnt = %llX\n", __func__, bit_pos, idx, + ba_lun->lun_id, bali->free_aun_cnt); + + return 0; +} + +/** + * ba_clone() - Clone a chunk of the block allocation table + * @ba_lun: Block allocator from which to allocate a block. + * @to_free: Block to free. + * + * Return: 0 on success, -1 on failure + */ +static int ba_clone(struct ba_lun *ba_lun, u64 to_clone) +{ + struct ba_lun_info *bali = ba_lun->ba_lun_handle; + + if (validate_alloc(bali, to_clone)) { + pr_debug("%s: AUN %llX is not allocated on lun_id %llX\n", + __func__, to_clone, ba_lun->lun_id); + return -1; + } + + pr_debug("%s: Received a request to clone AUN %llX on lun_id %llX\n", + __func__, to_clone, ba_lun->lun_id); + + if (bali->aun_clone_map[to_clone] == MAX_AUN_CLONE_CNT) { + pr_debug("%s: AUN %llX on lun_id %llX hit max clones already\n", + __func__, to_clone, ba_lun->lun_id); + return -1; + } + + bali->aun_clone_map[to_clone]++; + + return 0; +} + +/** + * ba_space() - returns the amount of free space left in the block allocator + * @ba_lun: Block allocator. + * + * Return: Amount of free space in block allocator + */ +static u64 ba_space(struct ba_lun *ba_lun) +{ + struct ba_lun_info *bali = ba_lun->ba_lun_handle; + + return bali->free_aun_cnt; +} + +/** + * cxlflash_ba_terminate() - frees resources associated with the block allocator + * @ba_lun: Block allocator. + * + * Safe to call in a partially allocated state. + */ +void cxlflash_ba_terminate(struct ba_lun *ba_lun) +{ + struct ba_lun_info *bali = ba_lun->ba_lun_handle; + + if (bali) { + kfree(bali->aun_clone_map); + kfree(bali->lun_alloc_map); + kfree(bali); + ba_lun->ba_lun_handle = NULL; + } +} + +/** + * init_vlun() - initializes a LUN for virtual use + * @lun_info: LUN information structure that owns the block allocator. + * + * Return: 0 on success, -errno on failure + */ +static int init_vlun(struct llun_info *lli) +{ + int rc = 0; + struct glun_info *gli = lli->parent; + struct blka *blka = &gli->blka; + + memset(blka, 0, sizeof(*blka)); + mutex_init(&blka->mutex); + + /* LUN IDs are unique per port, save the index instead */ + blka->ba_lun.lun_id = lli->lun_index; + blka->ba_lun.lsize = gli->max_lba + 1; + blka->ba_lun.lba_size = gli->blk_len; + + blka->ba_lun.au_size = MC_CHUNK_SIZE; + blka->nchunk = blka->ba_lun.lsize / MC_CHUNK_SIZE; + + rc = ba_init(&blka->ba_lun); + if (unlikely(rc)) + pr_debug("%s: cannot init block_alloc, rc=%d\n", __func__, rc); + + pr_debug("%s: returning rc=%d lli=%p\n", __func__, rc, lli); + return rc; +} + +/** + * write_same16() - sends a SCSI WRITE_SAME16 (0) command to specified LUN + * @sdev: SCSI device associated with LUN. + * @lba: Logical block address to start write same. + * @nblks: Number of logical blocks to write same. + * + * Return: 0 on success, -errno on failure + */ +static int write_same16(struct scsi_device *sdev, + u64 lba, + u32 nblks) +{ + u8 *cmd_buf = NULL; + u8 *scsi_cmd = NULL; + u8 *sense_buf = NULL; + int rc = 0; + int result = 0; + int ws_limit = SISLITE_MAX_WS_BLOCKS; + u64 offset = lba; + int left = nblks; + u32 tout = sdev->request_queue->rq_timeout; + struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)sdev->host->hostdata; + struct device *dev = &cfg->dev->dev; + + cmd_buf = kzalloc(CMD_BUFSIZE, GFP_KERNEL); + scsi_cmd = kzalloc(MAX_COMMAND_SIZE, GFP_KERNEL); + sense_buf = kzalloc(SCSI_SENSE_BUFFERSIZE, GFP_KERNEL); + if (unlikely(!cmd_buf || !scsi_cmd || !sense_buf)) { + rc = -ENOMEM; + goto out; + } + + while (left > 0) { + + scsi_cmd[0] = WRITE_SAME_16; + put_unaligned_be64(offset, &scsi_cmd[2]); + put_unaligned_be32(ws_limit < left ? ws_limit : left, + &scsi_cmd[10]); + + result = scsi_execute(sdev, scsi_cmd, DMA_TO_DEVICE, cmd_buf, + CMD_BUFSIZE, sense_buf, tout, 5, 0, NULL); + if (result) { + dev_err_ratelimited(dev, "%s: command failed for " + "offset %lld result=0x%x\n", + __func__, offset, result); + rc = -EIO; + goto out; + } + left -= ws_limit; + offset += ws_limit; + } + +out: + kfree(cmd_buf); + kfree(scsi_cmd); + kfree(sense_buf); + pr_debug("%s: returning rc=%d\n", __func__, rc); + return rc; +} + +/** + * grow_lxt() - expands the translation table associated with the specified RHTE + * @afu: AFU associated with the host. + * @sdev: SCSI device associated with LUN. + * @ctxid: Context ID of context owning the RHTE. + * @rhndl: Resource handle associated with the RHTE. + * @rhte: Resource handle entry (RHTE). + * @new_size: Number of translation entries associated with RHTE. + * + * By design, this routine employs a 'best attempt' allocation and will + * truncate the requested size down if there is not sufficient space in + * the block allocator to satisfy the request but there does exist some + * amount of space. The user is made aware of this by returning the size + * allocated. + * + * Return: 0 on success, -errno on failure + */ +static int grow_lxt(struct afu *afu, + struct scsi_device *sdev, + ctx_hndl_t ctxid, + res_hndl_t rhndl, + struct sisl_rht_entry *rhte, + u64 *new_size) +{ + struct sisl_lxt_entry *lxt = NULL, *lxt_old = NULL; + struct llun_info *lli = sdev->hostdata; + struct glun_info *gli = lli->parent; + struct blka *blka = &gli->blka; + u32 av_size; + u32 ngrps, ngrps_old; + u64 aun; /* chunk# allocated by block allocator */ + u64 delta = *new_size - rhte->lxt_cnt; + u64 my_new_size; + int i, rc = 0; + + /* + * Check what is available in the block allocator before re-allocating + * LXT array. This is done up front under the mutex which must not be + * released until after allocation is complete. + */ + mutex_lock(&blka->mutex); + av_size = ba_space(&blka->ba_lun); + if (unlikely(av_size <= 0)) { + pr_debug("%s: ba_space error: av_size %d\n", __func__, av_size); + mutex_unlock(&blka->mutex); + rc = -ENOSPC; + goto out; + } + + if (av_size < delta) + delta = av_size; + + lxt_old = rhte->lxt_start; + ngrps_old = LXT_NUM_GROUPS(rhte->lxt_cnt); + ngrps = LXT_NUM_GROUPS(rhte->lxt_cnt + delta); + + if (ngrps != ngrps_old) { + /* reallocate to fit new size */ + lxt = kzalloc((sizeof(*lxt) * LXT_GROUP_SIZE * ngrps), + GFP_KERNEL); + if (unlikely(!lxt)) { + mutex_unlock(&blka->mutex); + rc = -ENOMEM; + goto out; + } + + /* copy over all old entries */ + memcpy(lxt, lxt_old, (sizeof(*lxt) * rhte->lxt_cnt)); + } else + lxt = lxt_old; + + /* nothing can fail from now on */ + my_new_size = rhte->lxt_cnt + delta; + + /* add new entries to the end */ + for (i = rhte->lxt_cnt; i < my_new_size; i++) { + /* + * Due to the earlier check of available space, ba_alloc + * cannot fail here. If it did due to internal error, + * leave a rlba_base of -1u which will likely be a + * invalid LUN (too large). + */ + aun = ba_alloc(&blka->ba_lun); + if ((aun == -1ULL) || (aun >= blka->nchunk)) + pr_debug("%s: ba_alloc error: allocated chunk# %llX, " + "max %llX\n", __func__, aun, blka->nchunk - 1); + + /* select both ports, use r/w perms from RHT */ + lxt[i].rlba_base = ((aun << MC_CHUNK_SHIFT) | + (lli->lun_index << LXT_LUNIDX_SHIFT) | + (RHT_PERM_RW << LXT_PERM_SHIFT | + lli->port_sel)); + } + + mutex_unlock(&blka->mutex); + + /* + * The following sequence is prescribed in the SISlite spec + * for syncing up with the AFU when adding LXT entries. + */ + dma_wmb(); /* Make LXT updates are visible */ + + rhte->lxt_start = lxt; + dma_wmb(); /* Make RHT entry's LXT table update visible */ + + rhte->lxt_cnt = my_new_size; + dma_wmb(); /* Make RHT entry's LXT table size update visible */ + + cxlflash_afu_sync(afu, ctxid, rhndl, AFU_LW_SYNC); + + /* free old lxt if reallocated */ + if (lxt != lxt_old) + kfree(lxt_old); + *new_size = my_new_size; +out: + pr_debug("%s: returning rc=%d\n", __func__, rc); + return rc; +} + +/** + * shrink_lxt() - reduces translation table associated with the specified RHTE + * @afu: AFU associated with the host. + * @sdev: SCSI device associated with LUN. + * @rhndl: Resource handle associated with the RHTE. + * @rhte: Resource handle entry (RHTE). + * @ctxi: Context owning resources. + * @new_size: Number of translation entries associated with RHTE. + * + * Return: 0 on success, -errno on failure + */ +static int shrink_lxt(struct afu *afu, + struct scsi_device *sdev, + res_hndl_t rhndl, + struct sisl_rht_entry *rhte, + struct ctx_info *ctxi, + u64 *new_size) +{ + struct sisl_lxt_entry *lxt, *lxt_old; + struct llun_info *lli = sdev->hostdata; + struct glun_info *gli = lli->parent; + struct blka *blka = &gli->blka; + ctx_hndl_t ctxid = DECODE_CTXID(ctxi->ctxid); + bool needs_ws = ctxi->rht_needs_ws[rhndl]; + bool needs_sync = !ctxi->err_recovery_active; + u32 ngrps, ngrps_old; + u64 aun; /* chunk# allocated by block allocator */ + u64 delta = rhte->lxt_cnt - *new_size; + u64 my_new_size; + int i, rc = 0; + + lxt_old = rhte->lxt_start; + ngrps_old = LXT_NUM_GROUPS(rhte->lxt_cnt); + ngrps = LXT_NUM_GROUPS(rhte->lxt_cnt - delta); + + if (ngrps != ngrps_old) { + /* Reallocate to fit new size unless new size is 0 */ + if (ngrps) { + lxt = kzalloc((sizeof(*lxt) * LXT_GROUP_SIZE * ngrps), + GFP_KERNEL); + if (unlikely(!lxt)) { + rc = -ENOMEM; + goto out; + } + + /* Copy over old entries that will remain */ + memcpy(lxt, lxt_old, + (sizeof(*lxt) * (rhte->lxt_cnt - delta))); + } else + lxt = NULL; + } else + lxt = lxt_old; + + /* Nothing can fail from now on */ + my_new_size = rhte->lxt_cnt - delta; + + /* + * The following sequence is prescribed in the SISlite spec + * for syncing up with the AFU when removing LXT entries. + */ + rhte->lxt_cnt = my_new_size; + dma_wmb(); /* Make RHT entry's LXT table size update visible */ + + rhte->lxt_start = lxt; + dma_wmb(); /* Make RHT entry's LXT table update visible */ + + if (needs_sync) + cxlflash_afu_sync(afu, ctxid, rhndl, AFU_HW_SYNC); + + if (needs_ws) { + /* + * Mark the context as unavailable, so that we can release + * the mutex safely. + */ + ctxi->unavail = true; + mutex_unlock(&ctxi->mutex); + } + + /* Free LBAs allocated to freed chunks */ + mutex_lock(&blka->mutex); + for (i = delta - 1; i >= 0; i--) { + /* Mask the higher 48 bits before shifting, even though + * it is a noop + */ + aun = (lxt_old[my_new_size + i].rlba_base & SISL_ASTATUS_MASK); + aun = (aun >> MC_CHUNK_SHIFT); + if (needs_ws) + write_same16(sdev, aun, MC_CHUNK_SIZE); + ba_free(&blka->ba_lun, aun); + } + mutex_unlock(&blka->mutex); + + if (needs_ws) { + /* Make the context visible again */ + mutex_lock(&ctxi->mutex); + ctxi->unavail = false; + } + + /* Free old lxt if reallocated */ + if (lxt != lxt_old) + kfree(lxt_old); + *new_size = my_new_size; +out: + pr_debug("%s: returning rc=%d\n", __func__, rc); + return rc; +} + +/** + * _cxlflash_vlun_resize() - changes the size of a virtual lun + * @sdev: SCSI device associated with LUN owning virtual LUN. + * @ctxi: Context owning resources. + * @resize: Resize ioctl data structure. + * + * On successful return, the user is informed of the new size (in blocks) + * of the virtual lun in last LBA format. When the size of the virtual + * lun is zero, the last LBA is reflected as -1. See comment in the + * prologue for _cxlflash_disk_release() regarding AFU syncs and contexts + * on the error recovery list. + * + * Return: 0 on success, -errno on failure + */ +int _cxlflash_vlun_resize(struct scsi_device *sdev, + struct ctx_info *ctxi, + struct dk_cxlflash_resize *resize) +{ + struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)sdev->host->hostdata; + struct llun_info *lli = sdev->hostdata; + struct glun_info *gli = lli->parent; + struct afu *afu = cfg->afu; + bool put_ctx = false; + + res_hndl_t rhndl = resize->rsrc_handle; + u64 new_size; + u64 nsectors; + u64 ctxid = DECODE_CTXID(resize->context_id), + rctxid = resize->context_id; + + struct sisl_rht_entry *rhte; + + int rc = 0; + + /* + * The requested size (req_size) is always assumed to be in 4k blocks, + * so we have to convert it here from 4k to chunk size. + */ + nsectors = (resize->req_size * CXLFLASH_BLOCK_SIZE) / gli->blk_len; + new_size = DIV_ROUND_UP(nsectors, MC_CHUNK_SIZE); + + pr_debug("%s: ctxid=%llu rhndl=0x%llx, req_size=0x%llx," + "new_size=%llx\n", __func__, ctxid, resize->rsrc_handle, + resize->req_size, new_size); + + if (unlikely(gli->mode != MODE_VIRTUAL)) { + pr_debug("%s: LUN mode does not support resize! (%d)\n", + __func__, gli->mode); + rc = -EINVAL; + goto out; + + } + + if (!ctxi) { + ctxi = get_context(cfg, rctxid, lli, CTX_CTRL_ERR_FALLBACK); + if (unlikely(!ctxi)) { + pr_debug("%s: Bad context! (%llu)\n", __func__, ctxid); + rc = -EINVAL; + goto out; + } + + put_ctx = true; + } + + rhte = get_rhte(ctxi, rhndl, lli); + if (unlikely(!rhte)) { + pr_debug("%s: Bad resource handle! (%u)\n", __func__, rhndl); + rc = -EINVAL; + goto out; + } + + if (new_size > rhte->lxt_cnt) + rc = grow_lxt(afu, sdev, ctxid, rhndl, rhte, &new_size); + else if (new_size < rhte->lxt_cnt) + rc = shrink_lxt(afu, sdev, rhndl, rhte, ctxi, &new_size); + + resize->hdr.return_flags = 0; + resize->last_lba = (new_size * MC_CHUNK_SIZE * gli->blk_len); + resize->last_lba /= CXLFLASH_BLOCK_SIZE; + resize->last_lba--; + +out: + if (put_ctx) + put_context(ctxi); + pr_debug("%s: resized to %lld returning rc=%d\n", + __func__, resize->last_lba, rc); + return rc; +} + +int cxlflash_vlun_resize(struct scsi_device *sdev, + struct dk_cxlflash_resize *resize) +{ + return _cxlflash_vlun_resize(sdev, NULL, resize); +} + +/** + * cxlflash_restore_luntable() - Restore LUN table to prior state + * @cfg: Internal structure associated with the host. + */ +void cxlflash_restore_luntable(struct cxlflash_cfg *cfg) +{ + struct llun_info *lli, *temp; + u32 chan; + u32 lind; + struct afu *afu = cfg->afu; + struct sisl_global_map *agm = &afu->afu_map->global; + + mutex_lock(&global.mutex); + + list_for_each_entry_safe(lli, temp, &cfg->lluns, list) { + if (!lli->in_table) + continue; + + lind = lli->lun_index; + + if (lli->port_sel == BOTH_PORTS) { + writeq_be(lli->lun_id[0], &agm->fc_port[0][lind]); + writeq_be(lli->lun_id[1], &agm->fc_port[1][lind]); + pr_debug("%s: Virtual LUN on slot %d id0=%llx, " + "id1=%llx\n", __func__, lind, + lli->lun_id[0], lli->lun_id[1]); + } else { + chan = PORT2CHAN(lli->port_sel); + writeq_be(lli->lun_id[chan], &agm->fc_port[chan][lind]); + pr_debug("%s: Virtual LUN on slot %d chan=%d, " + "id=%llx\n", __func__, lind, chan, + lli->lun_id[chan]); + } + } + + mutex_unlock(&global.mutex); +} + +/** + * init_luntable() - write an entry in the LUN table + * @cfg: Internal structure associated with the host. + * @lli: Per adapter LUN information structure. + * + * On successful return, a LUN table entry is created. + * At the top for LUNs visible on both ports. + * At the bottom for LUNs visible only on one port. + * + * Return: 0 on success, -errno on failure + */ +static int init_luntable(struct cxlflash_cfg *cfg, struct llun_info *lli) +{ + u32 chan; + u32 lind; + int rc = 0; + struct afu *afu = cfg->afu; + struct sisl_global_map *agm = &afu->afu_map->global; + + mutex_lock(&global.mutex); + + if (lli->in_table) + goto out; + + if (lli->port_sel == BOTH_PORTS) { + /* + * If this LUN is visible from both ports, we will put + * it in the top half of the LUN table. + */ + if ((cfg->promote_lun_index == cfg->last_lun_index[0]) || + (cfg->promote_lun_index == cfg->last_lun_index[1])) { + rc = -ENOSPC; + goto out; + } + + lind = lli->lun_index = cfg->promote_lun_index; + writeq_be(lli->lun_id[0], &agm->fc_port[0][lind]); + writeq_be(lli->lun_id[1], &agm->fc_port[1][lind]); + cfg->promote_lun_index++; + pr_debug("%s: Virtual LUN on slot %d id0=%llx, id1=%llx\n", + __func__, lind, lli->lun_id[0], lli->lun_id[1]); + } else { + /* + * If this LUN is visible only from one port, we will put + * it in the bottom half of the LUN table. + */ + chan = PORT2CHAN(lli->port_sel); + if (cfg->promote_lun_index == cfg->last_lun_index[chan]) { + rc = -ENOSPC; + goto out; + } + + lind = lli->lun_index = cfg->last_lun_index[chan]; + writeq_be(lli->lun_id[chan], &agm->fc_port[chan][lind]); + cfg->last_lun_index[chan]--; + pr_debug("%s: Virtual LUN on slot %d chan=%d, id=%llx\n", + __func__, lind, chan, lli->lun_id[chan]); + } + + lli->in_table = true; +out: + mutex_unlock(&global.mutex); + pr_debug("%s: returning rc=%d\n", __func__, rc); + return rc; +} + +/** + * cxlflash_disk_virtual_open() - open a virtual disk of specified size + * @sdev: SCSI device associated with LUN owning virtual LUN. + * @arg: UVirtual ioctl data structure. + * + * On successful return, the user is informed of the resource handle + * to be used to identify the virtual lun and the size (in blocks) of + * the virtual lun in last LBA format. When the size of the virtual lun + * is zero, the last LBA is reflected as -1. + * + * Return: 0 on success, -errno on failure + */ +int cxlflash_disk_virtual_open(struct scsi_device *sdev, void *arg) +{ + struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)sdev->host->hostdata; + struct device *dev = &cfg->dev->dev; + struct llun_info *lli = sdev->hostdata; + struct glun_info *gli = lli->parent; + + struct dk_cxlflash_uvirtual *virt = (struct dk_cxlflash_uvirtual *)arg; + struct dk_cxlflash_resize resize; + + u64 ctxid = DECODE_CTXID(virt->context_id), + rctxid = virt->context_id; + u64 lun_size = virt->lun_size; + u64 last_lba = 0; + u64 rsrc_handle = -1; + + int rc = 0; + + struct ctx_info *ctxi = NULL; + struct sisl_rht_entry *rhte = NULL; + + pr_debug("%s: ctxid=%llu ls=0x%llx\n", __func__, ctxid, lun_size); + + mutex_lock(&gli->mutex); + if (gli->mode == MODE_NONE) { + /* Setup the LUN table and block allocator on first call */ + rc = init_luntable(cfg, lli); + if (rc) { + dev_err(dev, "%s: call to init_luntable failed " + "rc=%d!\n", __func__, rc); + goto err0; + } + + rc = init_vlun(lli); + if (rc) { + dev_err(dev, "%s: call to init_vlun failed rc=%d!\n", + __func__, rc); + rc = -ENOMEM; + goto err0; + } + } + + rc = cxlflash_lun_attach(gli, MODE_VIRTUAL, true); + if (unlikely(rc)) { + dev_err(dev, "%s: Failed to attach to LUN! (VIRTUAL)\n", + __func__); + goto err0; + } + mutex_unlock(&gli->mutex); + + ctxi = get_context(cfg, rctxid, lli, 0); + if (unlikely(!ctxi)) { + dev_err(dev, "%s: Bad context! (%llu)\n", __func__, ctxid); + rc = -EINVAL; + goto err1; + } + + rhte = rhte_checkout(ctxi, lli); + if (unlikely(!rhte)) { + dev_err(dev, "%s: too many opens for this context\n", __func__); + rc = -EMFILE; /* too many opens */ + goto err1; + } + + rsrc_handle = (rhte - ctxi->rht_start); + + /* Populate RHT format 0 */ + rhte->nmask = MC_RHT_NMASK; + rhte->fp = SISL_RHT_FP(0U, ctxi->rht_perms); + + /* Resize even if requested size is 0 */ + marshal_virt_to_resize(virt, &resize); + resize.rsrc_handle = rsrc_handle; + rc = _cxlflash_vlun_resize(sdev, ctxi, &resize); + if (rc) { + dev_err(dev, "%s: resize failed rc %d\n", __func__, rc); + goto err2; + } + last_lba = resize.last_lba; + + if (virt->hdr.flags & DK_CXLFLASH_UVIRTUAL_NEED_WRITE_SAME) + ctxi->rht_needs_ws[rsrc_handle] = true; + + virt->hdr.return_flags = 0; + virt->last_lba = last_lba; + virt->rsrc_handle = rsrc_handle; + +out: + if (likely(ctxi)) + put_context(ctxi); + pr_debug("%s: returning handle 0x%llx rc=%d llba %lld\n", + __func__, rsrc_handle, rc, last_lba); + return rc; + +err2: + rhte_checkin(ctxi, rhte); +err1: + cxlflash_lun_detach(gli); + goto out; +err0: + /* Special common cleanup prior to successful LUN attach */ + cxlflash_ba_terminate(&gli->blka.ba_lun); + mutex_unlock(&gli->mutex); + goto out; +} + +/** + * clone_lxt() - copies translation tables from source to destination RHTE + * @afu: AFU associated with the host. + * @blka: Block allocator associated with LUN. + * @ctxid: Context ID of context owning the RHTE. + * @rhndl: Resource handle associated with the RHTE. + * @rhte: Destination resource handle entry (RHTE). + * @rhte_src: Source resource handle entry (RHTE). + * + * Return: 0 on success, -errno on failure + */ +static int clone_lxt(struct afu *afu, + struct blka *blka, + ctx_hndl_t ctxid, + res_hndl_t rhndl, + struct sisl_rht_entry *rhte, + struct sisl_rht_entry *rhte_src) +{ + struct sisl_lxt_entry *lxt; + u32 ngrps; + u64 aun; /* chunk# allocated by block allocator */ + int i, j; + + ngrps = LXT_NUM_GROUPS(rhte_src->lxt_cnt); + + if (ngrps) { + /* allocate new LXTs for clone */ + lxt = kzalloc((sizeof(*lxt) * LXT_GROUP_SIZE * ngrps), + GFP_KERNEL); + if (unlikely(!lxt)) + return -ENOMEM; + + /* copy over */ + memcpy(lxt, rhte_src->lxt_start, + (sizeof(*lxt) * rhte_src->lxt_cnt)); + + /* clone the LBAs in block allocator via ref_cnt */ + mutex_lock(&blka->mutex); + for (i = 0; i < rhte_src->lxt_cnt; i++) { + aun = (lxt[i].rlba_base >> MC_CHUNK_SHIFT); + if (ba_clone(&blka->ba_lun, aun) == -1ULL) { + /* free the clones already made */ + for (j = 0; j < i; j++) { + aun = (lxt[j].rlba_base >> + MC_CHUNK_SHIFT); + ba_free(&blka->ba_lun, aun); + } + + mutex_unlock(&blka->mutex); + kfree(lxt); + return -EIO; + } + } + mutex_unlock(&blka->mutex); + } else { + lxt = NULL; + } + + /* + * The following sequence is prescribed in the SISlite spec + * for syncing up with the AFU when adding LXT entries. + */ + dma_wmb(); /* Make LXT updates are visible */ + + rhte->lxt_start = lxt; + dma_wmb(); /* Make RHT entry's LXT table update visible */ + + rhte->lxt_cnt = rhte_src->lxt_cnt; + dma_wmb(); /* Make RHT entry's LXT table size update visible */ + + cxlflash_afu_sync(afu, ctxid, rhndl, AFU_LW_SYNC); + + pr_debug("%s: returning\n", __func__); + return 0; +} + +/** + * cxlflash_disk_clone() - clone a context by making snapshot of another + * @sdev: SCSI device associated with LUN owning virtual LUN. + * @clone: Clone ioctl data structure. + * + * This routine effectively performs cxlflash_disk_open operation for each + * in-use virtual resource in the source context. Note that the destination + * context must be in pristine state and cannot have any resource handles + * open at the time of the clone. + * + * Return: 0 on success, -errno on failure + */ +int cxlflash_disk_clone(struct scsi_device *sdev, + struct dk_cxlflash_clone *clone) +{ + struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)sdev->host->hostdata; + struct llun_info *lli = sdev->hostdata; + struct glun_info *gli = lli->parent; + struct blka *blka = &gli->blka; + struct afu *afu = cfg->afu; + struct dk_cxlflash_release release = { { 0 }, 0 }; + + struct ctx_info *ctxi_src = NULL, + *ctxi_dst = NULL; + struct lun_access *lun_access_src, *lun_access_dst; + u32 perms; + u64 ctxid_src = DECODE_CTXID(clone->context_id_src), + ctxid_dst = DECODE_CTXID(clone->context_id_dst), + rctxid_src = clone->context_id_src, + rctxid_dst = clone->context_id_dst; + int adap_fd_src = clone->adap_fd_src; + int i, j; + int rc = 0; + bool found; + LIST_HEAD(sidecar); + + pr_debug("%s: ctxid_src=%llu ctxid_dst=%llu adap_fd_src=%d\n", + __func__, ctxid_src, ctxid_dst, adap_fd_src); + + /* Do not clone yourself */ + if (unlikely(rctxid_src == rctxid_dst)) { + rc = -EINVAL; + goto out; + } + + if (unlikely(gli->mode != MODE_VIRTUAL)) { + rc = -EINVAL; + pr_debug("%s: Clone not supported on physical LUNs! (%d)\n", + __func__, gli->mode); + goto out; + } + + ctxi_src = get_context(cfg, rctxid_src, lli, CTX_CTRL_CLONE); + ctxi_dst = get_context(cfg, rctxid_dst, lli, 0); + if (unlikely(!ctxi_src || !ctxi_dst)) { + pr_debug("%s: Bad context! (%llu,%llu)\n", __func__, + ctxid_src, ctxid_dst); + rc = -EINVAL; + goto out; + } + + if (unlikely(adap_fd_src != ctxi_src->lfd)) { + pr_debug("%s: Invalid source adapter fd! (%d)\n", + __func__, adap_fd_src); + rc = -EINVAL; + goto out; + } + + /* Verify there is no open resource handle in the destination context */ + for (i = 0; i < MAX_RHT_PER_CONTEXT; i++) + if (ctxi_dst->rht_start[i].nmask != 0) { + rc = -EINVAL; + goto out; + } + + /* Clone LUN access list */ + list_for_each_entry(lun_access_src, &ctxi_src->luns, list) { + found = false; + list_for_each_entry(lun_access_dst, &ctxi_dst->luns, list) + if (lun_access_dst->sdev == lun_access_src->sdev) { + found = true; + break; + } + + if (!found) { + lun_access_dst = kzalloc(sizeof(*lun_access_dst), + GFP_KERNEL); + if (unlikely(!lun_access_dst)) { + pr_err("%s: Unable to allocate lun_access!\n", + __func__); + rc = -ENOMEM; + goto out; + } + + *lun_access_dst = *lun_access_src; + list_add(&lun_access_dst->list, &sidecar); + } + } + + if (unlikely(!ctxi_src->rht_out)) { + pr_debug("%s: Nothing to clone!\n", __func__); + goto out_success; + } + + /* User specified permission on attach */ + perms = ctxi_dst->rht_perms; + + /* + * Copy over checked-out RHT (and their associated LXT) entries by + * hand, stopping after we've copied all outstanding entries and + * cleaning up if the clone fails. + * + * Note: This loop is equivalent to performing cxlflash_disk_open and + * cxlflash_vlun_resize. As such, LUN accounting needs to be taken into + * account by attaching after each successful RHT entry clone. In the + * event that a clone failure is experienced, the LUN detach is handled + * via the cleanup performed by _cxlflash_disk_release. + */ + for (i = 0; i < MAX_RHT_PER_CONTEXT; i++) { + if (ctxi_src->rht_out == ctxi_dst->rht_out) + break; + if (ctxi_src->rht_start[i].nmask == 0) + continue; + + /* Consume a destination RHT entry */ + ctxi_dst->rht_out++; + ctxi_dst->rht_start[i].nmask = ctxi_src->rht_start[i].nmask; + ctxi_dst->rht_start[i].fp = + SISL_RHT_FP_CLONE(ctxi_src->rht_start[i].fp, perms); + ctxi_dst->rht_lun[i] = ctxi_src->rht_lun[i]; + + rc = clone_lxt(afu, blka, ctxid_dst, i, + &ctxi_dst->rht_start[i], + &ctxi_src->rht_start[i]); + if (rc) { + marshal_clone_to_rele(clone, &release); + for (j = 0; j < i; j++) { + release.rsrc_handle = j; + _cxlflash_disk_release(sdev, ctxi_dst, + &release); + } + + /* Put back the one we failed on */ + rhte_checkin(ctxi_dst, &ctxi_dst->rht_start[i]); + goto err; + } + + cxlflash_lun_attach(gli, gli->mode, false); + } + +out_success: + list_splice(&sidecar, &ctxi_dst->luns); + sys_close(adap_fd_src); + + /* fall through */ +out: + if (ctxi_src) + put_context(ctxi_src); + if (ctxi_dst) + put_context(ctxi_dst); + pr_debug("%s: returning rc=%d\n", __func__, rc); + return rc; + +err: + list_for_each_entry_safe(lun_access_src, lun_access_dst, &sidecar, list) + kfree(lun_access_src); + goto out; +} diff --git a/drivers/scsi/cxlflash/vlun.h b/drivers/scsi/cxlflash/vlun.h new file mode 100644 index 000000000000..8b29a74946e4 --- /dev/null +++ b/drivers/scsi/cxlflash/vlun.h @@ -0,0 +1,86 @@ +/* + * CXL Flash Device Driver + * + * Written by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>, IBM Corporation + * Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation + * + * Copyright (C) 2015 IBM Corporation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#ifndef _CXLFLASH_VLUN_H +#define _CXLFLASH_VLUN_H + +/* RHT - Resource Handle Table */ +#define MC_RHT_NMASK 16 /* in bits */ +#define MC_CHUNK_SHIFT MC_RHT_NMASK /* shift to go from LBA to chunk# */ + +#define HIBIT (BITS_PER_LONG - 1) + +#define MAX_AUN_CLONE_CNT 0xFF + +/* + * LXT - LBA Translation Table + * + * +-------+-------+-------+-------+-------+-------+-------+---+---+ + * | RLBA_BASE |LUN_IDX| P |SEL| + * +-------+-------+-------+-------+-------+-------+-------+---+---+ + * + * The LXT Entry contains the physical LBA where the chunk starts (RLBA_BASE). + * AFU ORes the low order bits from the virtual LBA (offset into the chunk) + * with RLBA_BASE. The result is the physical LBA to be sent to storage. + * The LXT Entry also contains an index to a LUN TBL and a bitmask of which + * outgoing (FC) * ports can be selected. The port select bit-mask is ANDed + * with a global port select bit-mask maintained by the driver. + * In addition, it has permission bits that are ANDed with the + * RHT permissions to arrive at the final permissions for the chunk. + * + * LXT tables are allocated dynamically in groups. This is done to avoid + * a malloc/free overhead each time the LXT has to grow or shrink. + * + * Based on the current lxt_cnt (used), it is always possible to know + * how many are allocated (used+free). The number of allocated entries is + * not stored anywhere. + * + * The LXT table is re-allocated whenever it needs to cross into another group. +*/ +#define LXT_GROUP_SIZE 8 +#define LXT_NUM_GROUPS(lxt_cnt) (((lxt_cnt) + 7)/8) /* alloc'ed groups */ +#define LXT_LUNIDX_SHIFT 8 /* LXT entry, shift for LUN index */ +#define LXT_PERM_SHIFT 4 /* LXT entry, shift for permission bits */ + +struct ba_lun_info { + u64 *lun_alloc_map; + u32 lun_bmap_size; + u32 total_aus; + u64 free_aun_cnt; + + /* indices to be used for elevator lookup of free map */ + u32 free_low_idx; + u32 free_curr_idx; + u32 free_high_idx; + + u8 *aun_clone_map; +}; + +struct ba_lun { + u64 lun_id; + u64 wwpn; + size_t lsize; /* LUN size in number of LBAs */ + size_t lba_size; /* LBA size in number of bytes */ + size_t au_size; /* Allocation Unit size in number of LBAs */ + struct ba_lun_info *ba_lun_handle; +}; + +/* Block Allocator */ +struct blka { + struct ba_lun ba_lun; + u64 nchunk; /* number of chunks */ + struct mutex mutex; +}; + +#endif /* ifndef _CXLFLASH_SUPERPIPE_H */ diff --git a/drivers/scsi/device_handler/Kconfig b/drivers/scsi/device_handler/Kconfig index 69abd0ad48e2..e5647d59224f 100644 --- a/drivers/scsi/device_handler/Kconfig +++ b/drivers/scsi/device_handler/Kconfig @@ -3,7 +3,7 @@ # menuconfig SCSI_DH - tristate "SCSI Device Handlers" + bool "SCSI Device Handlers" depends on SCSI default n help diff --git a/drivers/scsi/device_handler/Makefile b/drivers/scsi/device_handler/Makefile index e1d2ea083e15..09866c50fbb4 100644 --- a/drivers/scsi/device_handler/Makefile +++ b/drivers/scsi/device_handler/Makefile @@ -1,7 +1,6 @@ # # SCSI Device Handler # -obj-$(CONFIG_SCSI_DH) += scsi_dh.o obj-$(CONFIG_SCSI_DH_RDAC) += scsi_dh_rdac.o obj-$(CONFIG_SCSI_DH_HP_SW) += scsi_dh_hp_sw.o obj-$(CONFIG_SCSI_DH_EMC) += scsi_dh_emc.o diff --git a/drivers/scsi/device_handler/scsi_dh.c b/drivers/scsi/device_handler/scsi_dh.c deleted file mode 100644 index 1efebc9eedfb..000000000000 --- a/drivers/scsi/device_handler/scsi_dh.c +++ /dev/null @@ -1,621 +0,0 @@ -/* - * SCSI device handler infrastruture. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - * - * Copyright IBM Corporation, 2007 - * Authors: - * Chandra Seetharaman <sekharan@us.ibm.com> - * Mike Anderson <andmike@linux.vnet.ibm.com> - */ - -#include <linux/slab.h> -#include <linux/module.h> -#include <scsi/scsi_dh.h> -#include "../scsi_priv.h" - -static DEFINE_SPINLOCK(list_lock); -static LIST_HEAD(scsi_dh_list); - -static struct scsi_device_handler *get_device_handler(const char *name) -{ - struct scsi_device_handler *tmp, *found = NULL; - - spin_lock(&list_lock); - list_for_each_entry(tmp, &scsi_dh_list, list) { - if (!strncmp(tmp->name, name, strlen(tmp->name))) { - found = tmp; - break; - } - } - spin_unlock(&list_lock); - return found; -} - -/* - * device_handler_match_function - Match a device handler to a device - * @sdev - SCSI device to be tested - * - * Tests @sdev against the match function of all registered device_handler. - * Returns the found device handler or NULL if not found. - */ -static struct scsi_device_handler * -device_handler_match_function(struct scsi_device *sdev) -{ - struct scsi_device_handler *tmp_dh, *found_dh = NULL; - - spin_lock(&list_lock); - list_for_each_entry(tmp_dh, &scsi_dh_list, list) { - if (tmp_dh->match && tmp_dh->match(sdev)) { - found_dh = tmp_dh; - break; - } - } - spin_unlock(&list_lock); - return found_dh; -} - -/* - * device_handler_match - Attach a device handler to a device - * @scsi_dh - The device handler to match against or NULL - * @sdev - SCSI device to be tested against @scsi_dh - * - * Tests @sdev against the device handler @scsi_dh or against - * all registered device_handler if @scsi_dh == NULL. - * Returns the found device handler or NULL if not found. - */ -static struct scsi_device_handler * -device_handler_match(struct scsi_device_handler *scsi_dh, - struct scsi_device *sdev) -{ - struct scsi_device_handler *found_dh; - - found_dh = device_handler_match_function(sdev); - - if (scsi_dh && found_dh != scsi_dh) - found_dh = NULL; - - return found_dh; -} - -/* - * scsi_dh_handler_attach - Attach a device handler to a device - * @sdev - SCSI device the device handler should attach to - * @scsi_dh - The device handler to attach - */ -static int scsi_dh_handler_attach(struct scsi_device *sdev, - struct scsi_device_handler *scsi_dh) -{ - struct scsi_dh_data *d; - - if (sdev->scsi_dh_data) { - if (sdev->scsi_dh_data->scsi_dh != scsi_dh) - return -EBUSY; - - kref_get(&sdev->scsi_dh_data->kref); - return 0; - } - - if (!try_module_get(scsi_dh->module)) - return -EINVAL; - - d = scsi_dh->attach(sdev); - if (IS_ERR(d)) { - sdev_printk(KERN_ERR, sdev, "%s: Attach failed (%ld)\n", - scsi_dh->name, PTR_ERR(d)); - module_put(scsi_dh->module); - return PTR_ERR(d); - } - - d->scsi_dh = scsi_dh; - kref_init(&d->kref); - d->sdev = sdev; - - spin_lock_irq(sdev->request_queue->queue_lock); - sdev->scsi_dh_data = d; - spin_unlock_irq(sdev->request_queue->queue_lock); - return 0; -} - -static void __detach_handler (struct kref *kref) -{ - struct scsi_dh_data *scsi_dh_data = - container_of(kref, struct scsi_dh_data, kref); - struct scsi_device_handler *scsi_dh = scsi_dh_data->scsi_dh; - struct scsi_device *sdev = scsi_dh_data->sdev; - - scsi_dh->detach(sdev); - - spin_lock_irq(sdev->request_queue->queue_lock); - sdev->scsi_dh_data = NULL; - spin_unlock_irq(sdev->request_queue->queue_lock); - - sdev_printk(KERN_NOTICE, sdev, "%s: Detached\n", scsi_dh->name); - module_put(scsi_dh->module); -} - -/* - * scsi_dh_handler_detach - Detach a device handler from a device - * @sdev - SCSI device the device handler should be detached from - * @scsi_dh - Device handler to be detached - * - * Detach from a device handler. If a device handler is specified, - * only detach if the currently attached handler matches @scsi_dh. - */ -static void scsi_dh_handler_detach(struct scsi_device *sdev, - struct scsi_device_handler *scsi_dh) -{ - if (!sdev->scsi_dh_data) - return; - - if (scsi_dh && scsi_dh != sdev->scsi_dh_data->scsi_dh) - return; - - if (!scsi_dh) - scsi_dh = sdev->scsi_dh_data->scsi_dh; - - if (scsi_dh) - kref_put(&sdev->scsi_dh_data->kref, __detach_handler); -} - -/* - * Functions for sysfs attribute 'dh_state' - */ -static ssize_t -store_dh_state(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) -{ - struct scsi_device *sdev = to_scsi_device(dev); - struct scsi_device_handler *scsi_dh; - int err = -EINVAL; - - if (sdev->sdev_state == SDEV_CANCEL || - sdev->sdev_state == SDEV_DEL) - return -ENODEV; - - if (!sdev->scsi_dh_data) { - /* - * Attach to a device handler - */ - if (!(scsi_dh = get_device_handler(buf))) - return err; - err = scsi_dh_handler_attach(sdev, scsi_dh); - } else { - scsi_dh = sdev->scsi_dh_data->scsi_dh; - if (!strncmp(buf, "detach", 6)) { - /* - * Detach from a device handler - */ - scsi_dh_handler_detach(sdev, scsi_dh); - err = 0; - } else if (!strncmp(buf, "activate", 8)) { - /* - * Activate a device handler - */ - if (scsi_dh->activate) - err = scsi_dh->activate(sdev, NULL, NULL); - else - err = 0; - } - } - - return err<0?err:count; -} - -static ssize_t -show_dh_state(struct device *dev, struct device_attribute *attr, char *buf) -{ - struct scsi_device *sdev = to_scsi_device(dev); - - if (!sdev->scsi_dh_data) - return snprintf(buf, 20, "detached\n"); - - return snprintf(buf, 20, "%s\n", sdev->scsi_dh_data->scsi_dh->name); -} - -static struct device_attribute scsi_dh_state_attr = - __ATTR(dh_state, S_IRUGO | S_IWUSR, show_dh_state, - store_dh_state); - -/* - * scsi_dh_sysfs_attr_add - Callback for scsi_init_dh - */ -static int scsi_dh_sysfs_attr_add(struct device *dev, void *data) -{ - struct scsi_device *sdev; - int err; - - if (!scsi_is_sdev_device(dev)) - return 0; - - sdev = to_scsi_device(dev); - - err = device_create_file(&sdev->sdev_gendev, - &scsi_dh_state_attr); - - return 0; -} - -/* - * scsi_dh_sysfs_attr_remove - Callback for scsi_exit_dh - */ -static int scsi_dh_sysfs_attr_remove(struct device *dev, void *data) -{ - struct scsi_device *sdev; - - if (!scsi_is_sdev_device(dev)) - return 0; - - sdev = to_scsi_device(dev); - - device_remove_file(&sdev->sdev_gendev, - &scsi_dh_state_attr); - - return 0; -} - -/* - * scsi_dh_notifier - notifier chain callback - */ -static int scsi_dh_notifier(struct notifier_block *nb, - unsigned long action, void *data) -{ - struct device *dev = data; - struct scsi_device *sdev; - int err = 0; - struct scsi_device_handler *devinfo = NULL; - - if (!scsi_is_sdev_device(dev)) - return 0; - - sdev = to_scsi_device(dev); - - if (action == BUS_NOTIFY_ADD_DEVICE) { - err = device_create_file(dev, &scsi_dh_state_attr); - /* don't care about err */ - devinfo = device_handler_match(NULL, sdev); - if (devinfo) - err = scsi_dh_handler_attach(sdev, devinfo); - } else if (action == BUS_NOTIFY_DEL_DEVICE) { - device_remove_file(dev, &scsi_dh_state_attr); - scsi_dh_handler_detach(sdev, NULL); - } - return err; -} - -/* - * scsi_dh_notifier_add - Callback for scsi_register_device_handler - */ -static int scsi_dh_notifier_add(struct device *dev, void *data) -{ - struct scsi_device_handler *scsi_dh = data; - struct scsi_device *sdev; - - if (!scsi_is_sdev_device(dev)) - return 0; - - if (!get_device(dev)) - return 0; - - sdev = to_scsi_device(dev); - - if (device_handler_match(scsi_dh, sdev)) - scsi_dh_handler_attach(sdev, scsi_dh); - - put_device(dev); - - return 0; -} - -/* - * scsi_dh_notifier_remove - Callback for scsi_unregister_device_handler - */ -static int scsi_dh_notifier_remove(struct device *dev, void *data) -{ - struct scsi_device_handler *scsi_dh = data; - struct scsi_device *sdev; - - if (!scsi_is_sdev_device(dev)) - return 0; - - if (!get_device(dev)) - return 0; - - sdev = to_scsi_device(dev); - - scsi_dh_handler_detach(sdev, scsi_dh); - - put_device(dev); - - return 0; -} - -/* - * scsi_register_device_handler - register a device handler personality - * module. - * @scsi_dh - device handler to be registered. - * - * Returns 0 on success, -EBUSY if handler already registered. - */ -int scsi_register_device_handler(struct scsi_device_handler *scsi_dh) -{ - - if (get_device_handler(scsi_dh->name)) - return -EBUSY; - - if (!scsi_dh->attach || !scsi_dh->detach) - return -EINVAL; - - spin_lock(&list_lock); - list_add(&scsi_dh->list, &scsi_dh_list); - spin_unlock(&list_lock); - - bus_for_each_dev(&scsi_bus_type, NULL, scsi_dh, scsi_dh_notifier_add); - printk(KERN_INFO "%s: device handler registered\n", scsi_dh->name); - - return SCSI_DH_OK; -} -EXPORT_SYMBOL_GPL(scsi_register_device_handler); - -/* - * scsi_unregister_device_handler - register a device handler personality - * module. - * @scsi_dh - device handler to be unregistered. - * - * Returns 0 on success, -ENODEV if handler not registered. - */ -int scsi_unregister_device_handler(struct scsi_device_handler *scsi_dh) -{ - - if (!get_device_handler(scsi_dh->name)) - return -ENODEV; - - bus_for_each_dev(&scsi_bus_type, NULL, scsi_dh, - scsi_dh_notifier_remove); - - spin_lock(&list_lock); - list_del(&scsi_dh->list); - spin_unlock(&list_lock); - printk(KERN_INFO "%s: device handler unregistered\n", scsi_dh->name); - - return SCSI_DH_OK; -} -EXPORT_SYMBOL_GPL(scsi_unregister_device_handler); - -/* - * scsi_dh_activate - activate the path associated with the scsi_device - * corresponding to the given request queue. - * Returns immediately without waiting for activation to be completed. - * @q - Request queue that is associated with the scsi_device to be - * activated. - * @fn - Function to be called upon completion of the activation. - * Function fn is called with data (below) and the error code. - * Function fn may be called from the same calling context. So, - * do not hold the lock in the caller which may be needed in fn. - * @data - data passed to the function fn upon completion. - * - */ -int scsi_dh_activate(struct request_queue *q, activate_complete fn, void *data) -{ - int err = 0; - unsigned long flags; - struct scsi_device *sdev; - struct scsi_device_handler *scsi_dh = NULL; - struct device *dev = NULL; - - spin_lock_irqsave(q->queue_lock, flags); - sdev = q->queuedata; - if (!sdev) { - spin_unlock_irqrestore(q->queue_lock, flags); - err = SCSI_DH_NOSYS; - if (fn) - fn(data, err); - return err; - } - - if (sdev->scsi_dh_data) - scsi_dh = sdev->scsi_dh_data->scsi_dh; - dev = get_device(&sdev->sdev_gendev); - if (!scsi_dh || !dev || - sdev->sdev_state == SDEV_CANCEL || - sdev->sdev_state == SDEV_DEL) - err = SCSI_DH_NOSYS; - if (sdev->sdev_state == SDEV_OFFLINE) - err = SCSI_DH_DEV_OFFLINED; - spin_unlock_irqrestore(q->queue_lock, flags); - - if (err) { - if (fn) - fn(data, err); - goto out; - } - - if (scsi_dh->activate) - err = scsi_dh->activate(sdev, fn, data); -out: - put_device(dev); - return err; -} -EXPORT_SYMBOL_GPL(scsi_dh_activate); - -/* - * scsi_dh_set_params - set the parameters for the device as per the - * string specified in params. - * @q - Request queue that is associated with the scsi_device for - * which the parameters to be set. - * @params - parameters in the following format - * "no_of_params\0param1\0param2\0param3\0...\0" - * for example, string for 2 parameters with value 10 and 21 - * is specified as "2\010\021\0". - */ -int scsi_dh_set_params(struct request_queue *q, const char *params) -{ - int err = -SCSI_DH_NOSYS; - unsigned long flags; - struct scsi_device *sdev; - struct scsi_device_handler *scsi_dh = NULL; - - spin_lock_irqsave(q->queue_lock, flags); - sdev = q->queuedata; - if (sdev && sdev->scsi_dh_data) - scsi_dh = sdev->scsi_dh_data->scsi_dh; - if (scsi_dh && scsi_dh->set_params && get_device(&sdev->sdev_gendev)) - err = 0; - spin_unlock_irqrestore(q->queue_lock, flags); - - if (err) - return err; - err = scsi_dh->set_params(sdev, params); - put_device(&sdev->sdev_gendev); - return err; -} -EXPORT_SYMBOL_GPL(scsi_dh_set_params); - -/* - * scsi_dh_handler_exist - Return TRUE(1) if a device handler exists for - * the given name. FALSE(0) otherwise. - * @name - name of the device handler. - */ -int scsi_dh_handler_exist(const char *name) -{ - return (get_device_handler(name) != NULL); -} -EXPORT_SYMBOL_GPL(scsi_dh_handler_exist); - -/* - * scsi_dh_attach - Attach device handler - * @q - Request queue that is associated with the scsi_device - * the handler should be attached to - * @name - name of the handler to attach - */ -int scsi_dh_attach(struct request_queue *q, const char *name) -{ - unsigned long flags; - struct scsi_device *sdev; - struct scsi_device_handler *scsi_dh; - int err = 0; - - scsi_dh = get_device_handler(name); - if (!scsi_dh) - return -EINVAL; - - spin_lock_irqsave(q->queue_lock, flags); - sdev = q->queuedata; - if (!sdev || !get_device(&sdev->sdev_gendev)) - err = -ENODEV; - spin_unlock_irqrestore(q->queue_lock, flags); - - if (!err) { - err = scsi_dh_handler_attach(sdev, scsi_dh); - put_device(&sdev->sdev_gendev); - } - return err; -} -EXPORT_SYMBOL_GPL(scsi_dh_attach); - -/* - * scsi_dh_detach - Detach device handler - * @q - Request queue that is associated with the scsi_device - * the handler should be detached from - * - * This function will detach the device handler only - * if the sdev is not part of the internal list, ie - * if it has been attached manually. - */ -void scsi_dh_detach(struct request_queue *q) -{ - unsigned long flags; - struct scsi_device *sdev; - struct scsi_device_handler *scsi_dh = NULL; - - spin_lock_irqsave(q->queue_lock, flags); - sdev = q->queuedata; - if (!sdev || !get_device(&sdev->sdev_gendev)) - sdev = NULL; - spin_unlock_irqrestore(q->queue_lock, flags); - - if (!sdev) - return; - - if (sdev->scsi_dh_data) { - scsi_dh = sdev->scsi_dh_data->scsi_dh; - scsi_dh_handler_detach(sdev, scsi_dh); - } - put_device(&sdev->sdev_gendev); -} -EXPORT_SYMBOL_GPL(scsi_dh_detach); - -/* - * scsi_dh_attached_handler_name - Get attached device handler's name - * @q - Request queue that is associated with the scsi_device - * that may have a device handler attached - * @gfp - the GFP mask used in the kmalloc() call when allocating memory - * - * Returns name of attached handler, NULL if no handler is attached. - * Caller must take care to free the returned string. - */ -const char *scsi_dh_attached_handler_name(struct request_queue *q, gfp_t gfp) -{ - unsigned long flags; - struct scsi_device *sdev; - const char *handler_name = NULL; - - spin_lock_irqsave(q->queue_lock, flags); - sdev = q->queuedata; - if (!sdev || !get_device(&sdev->sdev_gendev)) - sdev = NULL; - spin_unlock_irqrestore(q->queue_lock, flags); - - if (!sdev) - return NULL; - - if (sdev->scsi_dh_data) - handler_name = kstrdup(sdev->scsi_dh_data->scsi_dh->name, gfp); - - put_device(&sdev->sdev_gendev); - return handler_name; -} -EXPORT_SYMBOL_GPL(scsi_dh_attached_handler_name); - -static struct notifier_block scsi_dh_nb = { - .notifier_call = scsi_dh_notifier -}; - -static int __init scsi_dh_init(void) -{ - int r; - - r = bus_register_notifier(&scsi_bus_type, &scsi_dh_nb); - - if (!r) - bus_for_each_dev(&scsi_bus_type, NULL, NULL, - scsi_dh_sysfs_attr_add); - - return r; -} - -static void __exit scsi_dh_exit(void) -{ - bus_for_each_dev(&scsi_bus_type, NULL, NULL, - scsi_dh_sysfs_attr_remove); - bus_unregister_notifier(&scsi_bus_type, &scsi_dh_nb); -} - -module_init(scsi_dh_init); -module_exit(scsi_dh_exit); - -MODULE_DESCRIPTION("SCSI device handler"); -MODULE_AUTHOR("Chandra Seetharaman <sekharan@us.ibm.com>"); -MODULE_LICENSE("GPL"); diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c index 854b568b9931..cc2773b5de68 100644 --- a/drivers/scsi/device_handler/scsi_dh_alua.c +++ b/drivers/scsi/device_handler/scsi_dh_alua.c @@ -62,7 +62,6 @@ #define ALUA_OPTIMIZE_STPG 1 struct alua_dh_data { - struct scsi_dh_data dh_data; int group_id; int rel_port; int tpgs; @@ -86,11 +85,6 @@ struct alua_dh_data { static char print_alua_state(int); static int alua_check_sense(struct scsi_device *, struct scsi_sense_hdr *); -static inline struct alua_dh_data *get_alua_data(struct scsi_device *sdev) -{ - return container_of(sdev->scsi_dh_data, struct alua_dh_data, dh_data); -} - static int realloc_buffer(struct alua_dh_data *h, unsigned len) { if (h->buff && h->buff != h->inq) @@ -708,7 +702,7 @@ out: */ static int alua_set_params(struct scsi_device *sdev, const char *params) { - struct alua_dh_data *h = get_alua_data(sdev); + struct alua_dh_data *h = sdev->handler_data; unsigned int optimize = 0, argc; const char *p = params; int result = SCSI_DH_OK; @@ -746,7 +740,7 @@ MODULE_PARM_DESC(optimize_stpg, "Allow use of a non-optimized path, rather than static int alua_activate(struct scsi_device *sdev, activate_complete fn, void *data) { - struct alua_dh_data *h = get_alua_data(sdev); + struct alua_dh_data *h = sdev->handler_data; int err = SCSI_DH_OK; int stpg = 0; @@ -804,7 +798,7 @@ out: */ static int alua_prep_fn(struct scsi_device *sdev, struct request *req) { - struct alua_dh_data *h = get_alua_data(sdev); + struct alua_dh_data *h = sdev->handler_data; int ret = BLKPREP_OK; if (h->state == TPGS_STATE_TRANSITIONING) @@ -819,23 +813,18 @@ static int alua_prep_fn(struct scsi_device *sdev, struct request *req) } -static bool alua_match(struct scsi_device *sdev) -{ - return (scsi_device_tpgs(sdev) != 0); -} - /* * alua_bus_attach - Attach device handler * @sdev: device to be attached to */ -static struct scsi_dh_data *alua_bus_attach(struct scsi_device *sdev) +static int alua_bus_attach(struct scsi_device *sdev) { struct alua_dh_data *h; int err; h = kzalloc(sizeof(*h) , GFP_KERNEL); if (!h) - return ERR_PTR(-ENOMEM); + return -ENOMEM; h->tpgs = TPGS_MODE_UNINITIALIZED; h->state = TPGS_STATE_OPTIMIZED; h->group_id = -1; @@ -848,11 +837,11 @@ static struct scsi_dh_data *alua_bus_attach(struct scsi_device *sdev) if (err != SCSI_DH_OK && err != SCSI_DH_DEV_OFFLINED) goto failed; - sdev_printk(KERN_NOTICE, sdev, "%s: Attached\n", ALUA_DH_NAME); - return &h->dh_data; + sdev->handler_data = h; + return 0; failed: kfree(h); - return ERR_PTR(-EINVAL); + return -EINVAL; } /* @@ -861,10 +850,11 @@ failed: */ static void alua_bus_detach(struct scsi_device *sdev) { - struct alua_dh_data *h = get_alua_data(sdev); + struct alua_dh_data *h = sdev->handler_data; if (h->buff && h->inq != h->buff) kfree(h->buff); + sdev->handler_data = NULL; kfree(h); } @@ -877,7 +867,6 @@ static struct scsi_device_handler alua_dh = { .check_sense = alua_check_sense, .activate = alua_activate, .set_params = alua_set_params, - .match = alua_match, }; static int __init alua_init(void) diff --git a/drivers/scsi/device_handler/scsi_dh_emc.c b/drivers/scsi/device_handler/scsi_dh_emc.c index 6ed1caadbc6a..e6fb97cb12f4 100644 --- a/drivers/scsi/device_handler/scsi_dh_emc.c +++ b/drivers/scsi/device_handler/scsi_dh_emc.c @@ -72,7 +72,6 @@ static const char * lun_state[] = }; struct clariion_dh_data { - struct scsi_dh_data dh_data; /* * Flags: * CLARIION_SHORT_TRESPASS @@ -114,13 +113,6 @@ struct clariion_dh_data { int current_sp; }; -static inline struct clariion_dh_data - *get_clariion_data(struct scsi_device *sdev) -{ - return container_of(sdev->scsi_dh_data, struct clariion_dh_data, - dh_data); -} - /* * Parse MODE_SELECT cmd reply. */ @@ -450,7 +442,7 @@ static int clariion_check_sense(struct scsi_device *sdev, static int clariion_prep_fn(struct scsi_device *sdev, struct request *req) { - struct clariion_dh_data *h = get_clariion_data(sdev); + struct clariion_dh_data *h = sdev->handler_data; int ret = BLKPREP_OK; if (h->lun_state != CLARIION_LUN_OWNED) { @@ -533,7 +525,7 @@ retry: static int clariion_activate(struct scsi_device *sdev, activate_complete fn, void *data) { - struct clariion_dh_data *csdev = get_clariion_data(sdev); + struct clariion_dh_data *csdev = sdev->handler_data; int result; result = clariion_send_inquiry(sdev, csdev); @@ -574,7 +566,7 @@ done: */ static int clariion_set_params(struct scsi_device *sdev, const char *params) { - struct clariion_dh_data *csdev = get_clariion_data(sdev); + struct clariion_dh_data *csdev = sdev->handler_data; unsigned int hr = 0, st = 0, argc; const char *p = params; int result = SCSI_DH_OK; @@ -622,42 +614,14 @@ done: return result; } -static const struct { - char *vendor; - char *model; -} clariion_dev_list[] = { - {"DGC", "RAID"}, - {"DGC", "DISK"}, - {"DGC", "VRAID"}, - {NULL, NULL}, -}; - -static bool clariion_match(struct scsi_device *sdev) -{ - int i; - - if (scsi_device_tpgs(sdev)) - return false; - - for (i = 0; clariion_dev_list[i].vendor; i++) { - if (!strncmp(sdev->vendor, clariion_dev_list[i].vendor, - strlen(clariion_dev_list[i].vendor)) && - !strncmp(sdev->model, clariion_dev_list[i].model, - strlen(clariion_dev_list[i].model))) { - return true; - } - } - return false; -} - -static struct scsi_dh_data *clariion_bus_attach(struct scsi_device *sdev) +static int clariion_bus_attach(struct scsi_device *sdev) { struct clariion_dh_data *h; int err; h = kzalloc(sizeof(*h) , GFP_KERNEL); if (!h) - return ERR_PTR(-ENOMEM); + return -ENOMEM; h->lun_state = CLARIION_LUN_UNINITIALIZED; h->default_sp = CLARIION_UNBOUND_LU; h->current_sp = CLARIION_UNBOUND_LU; @@ -675,18 +639,19 @@ static struct scsi_dh_data *clariion_bus_attach(struct scsi_device *sdev) CLARIION_NAME, h->current_sp + 'A', h->port, lun_state[h->lun_state], h->default_sp + 'A'); - return &h->dh_data; + + sdev->handler_data = h; + return 0; failed: kfree(h); - return ERR_PTR(-EINVAL); + return -EINVAL; } static void clariion_bus_detach(struct scsi_device *sdev) { - struct clariion_dh_data *h = get_clariion_data(sdev); - - kfree(h); + kfree(sdev->handler_data); + sdev->handler_data = NULL; } static struct scsi_device_handler clariion_dh = { @@ -698,7 +663,6 @@ static struct scsi_device_handler clariion_dh = { .activate = clariion_activate, .prep_fn = clariion_prep_fn, .set_params = clariion_set_params, - .match = clariion_match, }; static int __init clariion_init(void) diff --git a/drivers/scsi/device_handler/scsi_dh_hp_sw.c b/drivers/scsi/device_handler/scsi_dh_hp_sw.c index 485d99544a15..9406d5f4a3d3 100644 --- a/drivers/scsi/device_handler/scsi_dh_hp_sw.c +++ b/drivers/scsi/device_handler/scsi_dh_hp_sw.c @@ -38,7 +38,6 @@ #define HP_SW_PATH_PASSIVE 1 struct hp_sw_dh_data { - struct scsi_dh_data dh_data; unsigned char sense[SCSI_SENSE_BUFFERSIZE]; int path_state; int retries; @@ -50,11 +49,6 @@ struct hp_sw_dh_data { static int hp_sw_start_stop(struct hp_sw_dh_data *); -static inline struct hp_sw_dh_data *get_hp_sw_data(struct scsi_device *sdev) -{ - return container_of(sdev->scsi_dh_data, struct hp_sw_dh_data, dh_data); -} - /* * tur_done - Handle TEST UNIT READY return status * @sdev: sdev the command has been sent to @@ -267,7 +261,7 @@ static int hp_sw_start_stop(struct hp_sw_dh_data *h) static int hp_sw_prep_fn(struct scsi_device *sdev, struct request *req) { - struct hp_sw_dh_data *h = get_hp_sw_data(sdev); + struct hp_sw_dh_data *h = sdev->handler_data; int ret = BLKPREP_OK; if (h->path_state != HP_SW_PATH_ACTIVE) { @@ -292,7 +286,7 @@ static int hp_sw_activate(struct scsi_device *sdev, activate_complete fn, void *data) { int ret = SCSI_DH_OK; - struct hp_sw_dh_data *h = get_hp_sw_data(sdev); + struct hp_sw_dh_data *h = sdev->handler_data; ret = hp_sw_tur(sdev, h); @@ -311,43 +305,14 @@ static int hp_sw_activate(struct scsi_device *sdev, return 0; } -static const struct { - char *vendor; - char *model; -} hp_sw_dh_data_list[] = { - {"COMPAQ", "MSA1000 VOLUME"}, - {"COMPAQ", "HSV110"}, - {"HP", "HSV100"}, - {"DEC", "HSG80"}, - {NULL, NULL}, -}; - -static bool hp_sw_match(struct scsi_device *sdev) -{ - int i; - - if (scsi_device_tpgs(sdev)) - return false; - - for (i = 0; hp_sw_dh_data_list[i].vendor; i++) { - if (!strncmp(sdev->vendor, hp_sw_dh_data_list[i].vendor, - strlen(hp_sw_dh_data_list[i].vendor)) && - !strncmp(sdev->model, hp_sw_dh_data_list[i].model, - strlen(hp_sw_dh_data_list[i].model))) { - return true; - } - } - return false; -} - -static struct scsi_dh_data *hp_sw_bus_attach(struct scsi_device *sdev) +static int hp_sw_bus_attach(struct scsi_device *sdev) { struct hp_sw_dh_data *h; int ret; h = kzalloc(sizeof(*h), GFP_KERNEL); if (!h) - return ERR_PTR(-ENOMEM); + return -ENOMEM; h->path_state = HP_SW_PATH_UNINITIALIZED; h->retries = HP_SW_RETRIES; h->sdev = sdev; @@ -359,17 +324,18 @@ static struct scsi_dh_data *hp_sw_bus_attach(struct scsi_device *sdev) sdev_printk(KERN_INFO, sdev, "%s: attached to %s path\n", HP_SW_NAME, h->path_state == HP_SW_PATH_ACTIVE? "active":"passive"); - return &h->dh_data; + + sdev->handler_data = h; + return 0; failed: kfree(h); - return ERR_PTR(-EINVAL); + return -EINVAL; } static void hp_sw_bus_detach( struct scsi_device *sdev ) { - struct hp_sw_dh_data *h = get_hp_sw_data(sdev); - - kfree(h); + kfree(sdev->handler_data); + sdev->handler_data = NULL; } static struct scsi_device_handler hp_sw_dh = { @@ -379,7 +345,6 @@ static struct scsi_device_handler hp_sw_dh = { .detach = hp_sw_bus_detach, .activate = hp_sw_activate, .prep_fn = hp_sw_prep_fn, - .match = hp_sw_match, }; static int __init hp_sw_init(void) diff --git a/drivers/scsi/device_handler/scsi_dh_rdac.c b/drivers/scsi/device_handler/scsi_dh_rdac.c index b46ace3d4bf0..361358134315 100644 --- a/drivers/scsi/device_handler/scsi_dh_rdac.c +++ b/drivers/scsi/device_handler/scsi_dh_rdac.c @@ -181,7 +181,6 @@ struct c2_inquiry { }; struct rdac_dh_data { - struct scsi_dh_data dh_data; struct rdac_controller *ctlr; #define UNINITIALIZED_LUN (1 << 8) unsigned lun; @@ -260,11 +259,6 @@ do { \ sdev_printk(KERN_INFO, sdev, RDAC_NAME ": " f "\n", ## arg); \ } while (0); -static inline struct rdac_dh_data *get_rdac_data(struct scsi_device *sdev) -{ - return container_of(sdev->scsi_dh_data, struct rdac_dh_data, dh_data); -} - static struct request *get_rdac_req(struct scsi_device *sdev, void *buffer, unsigned buflen, int rw) { @@ -544,7 +538,7 @@ static int mode_select_handle_sense(struct scsi_device *sdev, { struct scsi_sense_hdr sense_hdr; int err = SCSI_DH_IO, ret; - struct rdac_dh_data *h = get_rdac_data(sdev); + struct rdac_dh_data *h = sdev->handler_data; ret = scsi_normalize_sense(sensebuf, SCSI_SENSE_BUFFERSIZE, &sense_hdr); if (!ret) @@ -589,7 +583,7 @@ static void send_mode_select(struct work_struct *work) container_of(work, struct rdac_controller, ms_work); struct request *rq; struct scsi_device *sdev = ctlr->ms_sdev; - struct rdac_dh_data *h = get_rdac_data(sdev); + struct rdac_dh_data *h = sdev->handler_data; struct request_queue *q = sdev->request_queue; int err, retry_cnt = RDAC_RETRY_COUNT; struct rdac_queue_data *tmp, *qdata; @@ -648,7 +642,7 @@ static int queue_mode_select(struct scsi_device *sdev, if (!qdata) return SCSI_DH_RETRY; - qdata->h = get_rdac_data(sdev); + qdata->h = sdev->handler_data; qdata->callback_fn = fn; qdata->callback_data = data; @@ -667,7 +661,7 @@ static int queue_mode_select(struct scsi_device *sdev, static int rdac_activate(struct scsi_device *sdev, activate_complete fn, void *data) { - struct rdac_dh_data *h = get_rdac_data(sdev); + struct rdac_dh_data *h = sdev->handler_data; int err = SCSI_DH_OK; int act = 0; @@ -702,7 +696,7 @@ done: static int rdac_prep_fn(struct scsi_device *sdev, struct request *req) { - struct rdac_dh_data *h = get_rdac_data(sdev); + struct rdac_dh_data *h = sdev->handler_data; int ret = BLKPREP_OK; if (h->state != RDAC_STATE_ACTIVE) { @@ -716,7 +710,7 @@ static int rdac_prep_fn(struct scsi_device *sdev, struct request *req) static int rdac_check_sense(struct scsi_device *sdev, struct scsi_sense_hdr *sense_hdr) { - struct rdac_dh_data *h = get_rdac_data(sdev); + struct rdac_dh_data *h = sdev->handler_data; RDAC_LOG(RDAC_LOG_SENSE, sdev, "array %s, ctlr %d, " "I/O returned with sense %02x/%02x/%02x", @@ -778,56 +772,7 @@ static int rdac_check_sense(struct scsi_device *sdev, return SCSI_RETURN_NOT_HANDLED; } -static const struct { - char *vendor; - char *model; -} rdac_dev_list[] = { - {"IBM", "1722"}, - {"IBM", "1724"}, - {"IBM", "1726"}, - {"IBM", "1742"}, - {"IBM", "1745"}, - {"IBM", "1746"}, - {"IBM", "1813"}, - {"IBM", "1814"}, - {"IBM", "1815"}, - {"IBM", "1818"}, - {"IBM", "3526"}, - {"SGI", "TP9"}, - {"SGI", "IS"}, - {"STK", "OPENstorage D280"}, - {"STK", "FLEXLINE 380"}, - {"SUN", "CSM"}, - {"SUN", "LCSM100"}, - {"SUN", "STK6580_6780"}, - {"SUN", "SUN_6180"}, - {"SUN", "ArrayStorage"}, - {"DELL", "MD3"}, - {"NETAPP", "INF-01-00"}, - {"LSI", "INF-01-00"}, - {"ENGENIO", "INF-01-00"}, - {NULL, NULL}, -}; - -static bool rdac_match(struct scsi_device *sdev) -{ - int i; - - if (scsi_device_tpgs(sdev)) - return false; - - for (i = 0; rdac_dev_list[i].vendor; i++) { - if (!strncmp(sdev->vendor, rdac_dev_list[i].vendor, - strlen(rdac_dev_list[i].vendor)) && - !strncmp(sdev->model, rdac_dev_list[i].model, - strlen(rdac_dev_list[i].model))) { - return true; - } - } - return false; -} - -static struct scsi_dh_data *rdac_bus_attach(struct scsi_device *sdev) +static int rdac_bus_attach(struct scsi_device *sdev) { struct rdac_dh_data *h; int err; @@ -836,7 +781,7 @@ static struct scsi_dh_data *rdac_bus_attach(struct scsi_device *sdev) h = kzalloc(sizeof(*h) , GFP_KERNEL); if (!h) - return ERR_PTR(-ENOMEM); + return -ENOMEM; h->lun = UNINITIALIZED_LUN; h->state = RDAC_STATE_ACTIVE; @@ -861,7 +806,8 @@ static struct scsi_dh_data *rdac_bus_attach(struct scsi_device *sdev) RDAC_NAME, h->lun, mode[(int)h->mode], lun_state[(int)h->lun_state]); - return &h->dh_data; + sdev->handler_data = h; + return 0; clean_ctlr: spin_lock(&list_lock); @@ -870,12 +816,12 @@ clean_ctlr: failed: kfree(h); - return ERR_PTR(-EINVAL); + return -EINVAL; } static void rdac_bus_detach( struct scsi_device *sdev ) { - struct rdac_dh_data *h = get_rdac_data(sdev); + struct rdac_dh_data *h = sdev->handler_data; if (h->ctlr && h->ctlr->ms_queued) flush_workqueue(kmpath_rdacd); @@ -884,6 +830,7 @@ static void rdac_bus_detach( struct scsi_device *sdev ) if (h->ctlr) kref_put(&h->ctlr->kref, release_controller); spin_unlock(&list_lock); + sdev->handler_data = NULL; kfree(h); } @@ -895,7 +842,6 @@ static struct scsi_device_handler rdac_dh = { .attach = rdac_bus_attach, .detach = rdac_bus_detach, .activate = rdac_activate, - .match = rdac_match, }; static int __init rdac_init(void) diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c index f35ed53adaac..d4cda5e9600e 100644 --- a/drivers/scsi/dpt_i2o.c +++ b/drivers/scsi/dpt_i2o.c @@ -1924,6 +1924,9 @@ static void adpt_alpha_info(sysInfo_S* si) #endif #if defined __i386__ + +#include <uapi/asm/vm86.h> + static void adpt_i386_info(sysInfo_S* si) { // This is all the info we need for now diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c index ec193a8357d7..d3eb80c46bbe 100644 --- a/drivers/scsi/fcoe/fcoe.c +++ b/drivers/scsi/fcoe/fcoe.c @@ -364,7 +364,7 @@ static int fcoe_interface_setup(struct fcoe_interface *fcoe, * on the ethertype for the given device */ fcoe->fcoe_packet_type.func = fcoe_rcv; - fcoe->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE); + fcoe->fcoe_packet_type.type = htons(ETH_P_FCOE); fcoe->fcoe_packet_type.dev = netdev; dev_add_pack(&fcoe->fcoe_packet_type); diff --git a/drivers/scsi/fcoe/fcoe_transport.c b/drivers/scsi/fcoe/fcoe_transport.c index bdc89899561a..d7597c08fa11 100644 --- a/drivers/scsi/fcoe/fcoe_transport.c +++ b/drivers/scsi/fcoe/fcoe_transport.c @@ -58,7 +58,7 @@ MODULE_PARM_DESC(show, " Show attached FCoE transports"); module_param_call(create, fcoe_transport_create, NULL, (void *)FIP_MODE_FABRIC, S_IWUSR); __MODULE_PARM_TYPE(create, "string"); -MODULE_PARM_DESC(create, " Creates fcoe instance on a ethernet interface"); +MODULE_PARM_DESC(create, " Creates fcoe instance on an ethernet interface"); module_param_call(create_vn2vn, fcoe_transport_create, NULL, (void *)FIP_MODE_VN2VN, S_IWUSR); @@ -68,15 +68,15 @@ MODULE_PARM_DESC(create_vn2vn, " Creates a VN_node to VN_node FCoE instance " module_param_call(destroy, fcoe_transport_destroy, NULL, NULL, S_IWUSR); __MODULE_PARM_TYPE(destroy, "string"); -MODULE_PARM_DESC(destroy, " Destroys fcoe instance on a ethernet interface"); +MODULE_PARM_DESC(destroy, " Destroys fcoe instance on an ethernet interface"); module_param_call(enable, fcoe_transport_enable, NULL, NULL, S_IWUSR); __MODULE_PARM_TYPE(enable, "string"); -MODULE_PARM_DESC(enable, " Enables fcoe on a ethernet interface."); +MODULE_PARM_DESC(enable, " Enables fcoe on an ethernet interface."); module_param_call(disable, fcoe_transport_disable, NULL, NULL, S_IWUSR); __MODULE_PARM_TYPE(disable, "string"); -MODULE_PARM_DESC(disable, " Disables fcoe on a ethernet interface."); +MODULE_PARM_DESC(disable, " Disables fcoe on an ethernet interface."); /* notification function for packets from net device */ static struct notifier_block libfcoe_notifier = { diff --git a/drivers/scsi/fnic/fnic.h b/drivers/scsi/fnic/fnic.h index 26270c351624..ce129e595b55 100644 --- a/drivers/scsi/fnic/fnic.h +++ b/drivers/scsi/fnic/fnic.h @@ -39,7 +39,7 @@ #define DRV_NAME "fnic" #define DRV_DESCRIPTION "Cisco FCoE HBA Driver" -#define DRV_VERSION "1.6.0.17" +#define DRV_VERSION "1.6.0.17a" #define PFX DRV_NAME ": " #define DFX DRV_NAME "%d: " diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c index 155b286f1a9d..25436cd2860c 100644 --- a/drivers/scsi/fnic/fnic_scsi.c +++ b/drivers/scsi/fnic/fnic_scsi.c @@ -425,6 +425,7 @@ static int fnic_queuecommand_lck(struct scsi_cmnd *sc, void (*done)(struct scsi_ unsigned long ptr; struct fc_rport_priv *rdata; spinlock_t *io_lock = NULL; + int io_lock_acquired = 0; if (unlikely(fnic_chk_state_flags_locked(fnic, FNIC_FLAGS_IO_BLOCKED))) return SCSI_MLQUEUE_HOST_BUSY; @@ -518,6 +519,7 @@ static int fnic_queuecommand_lck(struct scsi_cmnd *sc, void (*done)(struct scsi_ spin_lock_irqsave(io_lock, flags); /* initialize rest of io_req */ + io_lock_acquired = 1; io_req->port_id = rport->port_id; io_req->start_time = jiffies; CMD_STATE(sc) = FNIC_IOREQ_CMD_PENDING; @@ -571,7 +573,7 @@ out: (((u64)CMD_FLAGS(sc) >> 32) | CMD_STATE(sc))); /* if only we issued IO, will we have the io lock */ - if (CMD_FLAGS(sc) & FNIC_IO_INITIALIZED) + if (io_lock_acquired) spin_unlock_irqrestore(io_lock, flags); atomic_dec(&fnic->in_flight); diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 1dafeb43333b..40669f8dd0df 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -1,6 +1,7 @@ /* * Disk Array driver for HP Smart Array SAS controllers - * Copyright 2000, 2014 Hewlett-Packard Development Company, L.P. + * Copyright 2014-2015 PMC-Sierra, Inc. + * Copyright 2000,2009-2015 Hewlett-Packard Development Company, L.P. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -11,11 +12,7 @@ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or * NON INFRINGEMENT. See the GNU General Public License for more details. * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - * Questions/Comments/Bugfixes to iss_storagedev@hp.com + * Questions/Comments/Bugfixes to storagedev@pmcs.com * */ @@ -132,6 +129,11 @@ static const struct pci_device_id hpsa_pci_device_id[] = { {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21CD}, {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21CE}, {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0580}, + {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0581}, + {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0582}, + {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0583}, + {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0584}, + {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0585}, {PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x0076}, {PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x0087}, {PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x007D}, @@ -190,6 +192,11 @@ static struct board_type products[] = { {0x21CD103C, "Smart Array", &SA5_access}, {0x21CE103C, "Smart HBA", &SA5_access}, {0x05809005, "SmartHBA-SA", &SA5_access}, + {0x05819005, "SmartHBA-SA 8i", &SA5_access}, + {0x05829005, "SmartHBA-SA 8i8e", &SA5_access}, + {0x05839005, "SmartHBA-SA 8e", &SA5_access}, + {0x05849005, "SmartHBA-SA 16i", &SA5_access}, + {0x05859005, "SmartHBA-SA 4i4e", &SA5_access}, {0x00761590, "HP Storage P1224 Array Controller", &SA5_access}, {0x00871590, "HP Storage P1224e Array Controller", &SA5_access}, {0x007D1590, "HP Storage P1228 Array Controller", &SA5_access}, @@ -267,6 +274,7 @@ static int hpsa_scsi_ioaccel_queue_command(struct ctlr_info *h, static void hpsa_command_resubmit_worker(struct work_struct *work); static u32 lockup_detected(struct ctlr_info *h); static int detect_controller_lockup(struct ctlr_info *h); +static int is_ext_target(struct ctlr_info *h, struct hpsa_scsi_dev_t *device); static inline struct ctlr_info *sdev_to_hba(struct scsi_device *sdev) { @@ -325,7 +333,7 @@ static int check_for_unit_attention(struct ctlr_info *h, decode_sense_data(c->err_info->SenseInfo, sense_len, &sense_key, &asc, &ascq); - if (sense_key != UNIT_ATTENTION || asc == -1) + if (sense_key != UNIT_ATTENTION || asc == 0xff) return 0; switch (asc) { @@ -717,12 +725,107 @@ static ssize_t host_show_hp_ssd_smart_path_enabled(struct device *dev, return snprintf(buf, 20, "%d\n", offload_enabled); } +#define MAX_PATHS 8 +#define PATH_STRING_LEN 50 + +static ssize_t path_info_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct ctlr_info *h; + struct scsi_device *sdev; + struct hpsa_scsi_dev_t *hdev; + unsigned long flags; + int i; + int output_len = 0; + u8 box; + u8 bay; + u8 path_map_index = 0; + char *active; + unsigned char phys_connector[2]; + unsigned char path[MAX_PATHS][PATH_STRING_LEN]; + + memset(path, 0, MAX_PATHS * PATH_STRING_LEN); + sdev = to_scsi_device(dev); + h = sdev_to_hba(sdev); + spin_lock_irqsave(&h->devlock, flags); + hdev = sdev->hostdata; + if (!hdev) { + spin_unlock_irqrestore(&h->devlock, flags); + return -ENODEV; + } + + bay = hdev->bay; + for (i = 0; i < MAX_PATHS; i++) { + path_map_index = 1<<i; + if (i == hdev->active_path_index) + active = "Active"; + else if (hdev->path_map & path_map_index) + active = "Inactive"; + else + continue; + + output_len = snprintf(path[i], + PATH_STRING_LEN, "[%d:%d:%d:%d] %20.20s ", + h->scsi_host->host_no, + hdev->bus, hdev->target, hdev->lun, + scsi_device_type(hdev->devtype)); + + if (is_ext_target(h, hdev) || + (hdev->devtype == TYPE_RAID) || + is_logical_dev_addr_mode(hdev->scsi3addr)) { + output_len += snprintf(path[i] + output_len, + PATH_STRING_LEN, "%s\n", + active); + continue; + } + + box = hdev->box[i]; + memcpy(&phys_connector, &hdev->phys_connector[i], + sizeof(phys_connector)); + if (phys_connector[0] < '0') + phys_connector[0] = '0'; + if (phys_connector[1] < '0') + phys_connector[1] = '0'; + if (hdev->phys_connector[i] > 0) + output_len += snprintf(path[i] + output_len, + PATH_STRING_LEN, + "PORT: %.2s ", + phys_connector); + if (hdev->devtype == TYPE_DISK && + hdev->expose_state != HPSA_DO_NOT_EXPOSE) { + if (box == 0 || box == 0xFF) { + output_len += snprintf(path[i] + output_len, + PATH_STRING_LEN, + "BAY: %hhu %s\n", + bay, active); + } else { + output_len += snprintf(path[i] + output_len, + PATH_STRING_LEN, + "BOX: %hhu BAY: %hhu %s\n", + box, bay, active); + } + } else if (box != 0 && box != 0xFF) { + output_len += snprintf(path[i] + output_len, + PATH_STRING_LEN, "BOX: %hhu %s\n", + box, active); + } else + output_len += snprintf(path[i] + output_len, + PATH_STRING_LEN, "%s\n", active); + } + + spin_unlock_irqrestore(&h->devlock, flags); + return snprintf(buf, output_len+1, "%s%s%s%s%s%s%s%s", + path[0], path[1], path[2], path[3], + path[4], path[5], path[6], path[7]); +} + static DEVICE_ATTR(raid_level, S_IRUGO, raid_level_show, NULL); static DEVICE_ATTR(lunid, S_IRUGO, lunid_show, NULL); static DEVICE_ATTR(unique_id, S_IRUGO, unique_id_show, NULL); static DEVICE_ATTR(rescan, S_IWUSR, NULL, host_store_rescan); static DEVICE_ATTR(hp_ssd_smart_path_enabled, S_IRUGO, host_show_hp_ssd_smart_path_enabled, NULL); +static DEVICE_ATTR(path_info, S_IRUGO, path_info_show, NULL); static DEVICE_ATTR(hp_ssd_smart_path_status, S_IWUSR|S_IRUGO|S_IROTH, host_show_hp_ssd_smart_path_status, host_store_hp_ssd_smart_path_status); @@ -744,6 +847,7 @@ static struct device_attribute *hpsa_sdev_attrs[] = { &dev_attr_lunid, &dev_attr_unique_id, &dev_attr_hp_ssd_smart_path_enabled, + &dev_attr_path_info, &dev_attr_lockup_detected, NULL, }; @@ -1083,17 +1187,19 @@ static int hpsa_scsi_add_entry(struct ctlr_info *h, int hostno, /* This is a non-zero lun of a multi-lun device. * Search through our list and find the device which - * has the same 8 byte LUN address, excepting byte 4. + * has the same 8 byte LUN address, excepting byte 4 and 5. * Assign the same bus and target for this new LUN. * Use the logical unit number from the firmware. */ memcpy(addr1, device->scsi3addr, 8); addr1[4] = 0; + addr1[5] = 0; for (i = 0; i < n; i++) { sd = h->dev[i]; memcpy(addr2, sd->scsi3addr, 8); addr2[4] = 0; - /* differ only in byte 4? */ + addr2[5] = 0; + /* differ only in byte 4 and 5? */ if (memcmp(addr1, addr2, 8) == 0) { device->bus = sd->bus; device->target = sd->target; @@ -1286,8 +1392,9 @@ static inline int device_updated(struct hpsa_scsi_dev_t *dev1, return 1; if (dev1->offload_enabled != dev2->offload_enabled) return 1; - if (dev1->queue_depth != dev2->queue_depth) - return 1; + if (!is_logical_dev_addr_mode(dev1->scsi3addr)) + if (dev1->queue_depth != dev2->queue_depth) + return 1; return 0; } @@ -1376,17 +1483,23 @@ static void hpsa_show_volume_status(struct ctlr_info *h, h->scsi_host->host_no, sd->bus, sd->target, sd->lun); break; + case HPSA_LV_NOT_AVAILABLE: + dev_info(&h->pdev->dev, + "C%d:B%d:T%d:L%d Volume is waiting for transforming volume.\n", + h->scsi_host->host_no, + sd->bus, sd->target, sd->lun); + break; case HPSA_LV_UNDERGOING_RPI: dev_info(&h->pdev->dev, - "C%d:B%d:T%d:L%d Volume is undergoing rapid parity initialization process.\n", + "C%d:B%d:T%d:L%d Volume is undergoing rapid parity init.\n", h->scsi_host->host_no, sd->bus, sd->target, sd->lun); break; case HPSA_LV_PENDING_RPI: dev_info(&h->pdev->dev, - "C%d:B%d:T%d:L%d Volume is queued for rapid parity initialization process.\n", - h->scsi_host->host_no, - sd->bus, sd->target, sd->lun); + "C%d:B%d:T%d:L%d Volume is queued for rapid parity initialization process.\n", + h->scsi_host->host_no, + sd->bus, sd->target, sd->lun); break; case HPSA_LV_ENCRYPTED_NO_KEY: dev_info(&h->pdev->dev, @@ -2585,34 +2698,6 @@ out: return rc; } -static int hpsa_bmic_ctrl_mode_sense(struct ctlr_info *h, - unsigned char *scsi3addr, unsigned char page, - struct bmic_controller_parameters *buf, size_t bufsize) -{ - int rc = IO_OK; - struct CommandList *c; - struct ErrorInfo *ei; - - c = cmd_alloc(h); - if (fill_cmd(c, BMIC_SENSE_CONTROLLER_PARAMETERS, h, buf, bufsize, - page, scsi3addr, TYPE_CMD)) { - rc = -1; - goto out; - } - rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, - PCI_DMA_FROMDEVICE, NO_TIMEOUT); - if (rc) - goto out; - ei = c->err_info; - if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) { - hpsa_scsi_interpret_error(h, c); - rc = -1; - } -out: - cmd_free(h, c); - return rc; -} - static int hpsa_send_reset(struct ctlr_info *h, unsigned char *scsi3addr, u8 reset_type, int reply_queue) { @@ -2749,11 +2834,10 @@ static int hpsa_do_reset(struct ctlr_info *h, struct hpsa_scsi_dev_t *dev, lockup_detected(h)); if (unlikely(lockup_detected(h))) { - dev_warn(&h->pdev->dev, - "Controller lockup detected during reset wait\n"); - mutex_unlock(&h->reset_mutex); - rc = -ENODEV; - } + dev_warn(&h->pdev->dev, + "Controller lockup detected during reset wait\n"); + rc = -ENODEV; + } if (unlikely(rc)) atomic_set(&dev->reset_cmds_out, 0); @@ -3186,6 +3270,7 @@ static int hpsa_volume_offline(struct ctlr_info *h, /* Keep volume offline in certain cases: */ switch (ldstat) { case HPSA_LV_UNDERGOING_ERASE: + case HPSA_LV_NOT_AVAILABLE: case HPSA_LV_UNDERGOING_RPI: case HPSA_LV_PENDING_RPI: case HPSA_LV_ENCRYPTED_NO_KEY: @@ -3562,29 +3647,6 @@ static u8 *figure_lunaddrbytes(struct ctlr_info *h, int raid_ctlr_position, return NULL; } -static int hpsa_hba_mode_enabled(struct ctlr_info *h) -{ - int rc; - int hba_mode_enabled; - struct bmic_controller_parameters *ctlr_params; - ctlr_params = kzalloc(sizeof(struct bmic_controller_parameters), - GFP_KERNEL); - - if (!ctlr_params) - return -ENOMEM; - rc = hpsa_bmic_ctrl_mode_sense(h, RAID_CTLR_LUNID, 0, ctlr_params, - sizeof(struct bmic_controller_parameters)); - if (rc) { - kfree(ctlr_params); - return rc; - } - - hba_mode_enabled = - ((ctlr_params->nvram_flags & HBA_MODE_ENABLED_FLAG) != 0); - kfree(ctlr_params); - return hba_mode_enabled; -} - /* get physical drive ioaccel handle and queue depth */ static void hpsa_get_ioaccel_drive_info(struct ctlr_info *h, struct hpsa_scsi_dev_t *dev, @@ -3615,6 +3677,31 @@ static void hpsa_get_ioaccel_drive_info(struct ctlr_info *h, atomic_set(&dev->reset_cmds_out, 0); } +static void hpsa_get_path_info(struct hpsa_scsi_dev_t *this_device, + u8 *lunaddrbytes, + struct bmic_identify_physical_device *id_phys) +{ + if (PHYS_IOACCEL(lunaddrbytes) + && this_device->ioaccel_handle) + this_device->hba_ioaccel_enabled = 1; + + memcpy(&this_device->active_path_index, + &id_phys->active_path_number, + sizeof(this_device->active_path_index)); + memcpy(&this_device->path_map, + &id_phys->redundant_path_present_map, + sizeof(this_device->path_map)); + memcpy(&this_device->box, + &id_phys->alternate_paths_phys_box_on_port, + sizeof(this_device->box)); + memcpy(&this_device->phys_connector, + &id_phys->alternate_paths_phys_connector, + sizeof(this_device->phys_connector)); + memcpy(&this_device->bay, + &id_phys->phys_bay_in_box, + sizeof(this_device->bay)); +} + static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno) { /* the idea here is we could get notified @@ -3637,7 +3724,6 @@ static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno) int ncurrent = 0; int i, n_ext_target_devs, ndevs_to_allocate; int raid_ctlr_position; - int rescan_hba_mode; DECLARE_BITMAP(lunzerobits, MAX_EXT_TARGETS); currentsd = kzalloc(sizeof(*currentsd) * HPSA_MAX_DEVICES, GFP_KERNEL); @@ -3653,17 +3739,6 @@ static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno) } memset(lunzerobits, 0, sizeof(lunzerobits)); - rescan_hba_mode = hpsa_hba_mode_enabled(h); - if (rescan_hba_mode < 0) - goto out; - - if (!h->hba_mode_enabled && rescan_hba_mode) - dev_warn(&h->pdev->dev, "HBA mode enabled\n"); - else if (h->hba_mode_enabled && !rescan_hba_mode) - dev_warn(&h->pdev->dev, "HBA mode disabled\n"); - - h->hba_mode_enabled = rescan_hba_mode; - if (hpsa_gather_lun_info(h, physdev_list, &nphysicals, logdev_list, &nlogicals)) goto out; @@ -3739,9 +3814,6 @@ static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno) /* do not expose masked devices */ if (MASKED_DEVICE(lunaddrbytes) && i < nphysicals + (raid_ctlr_position == 0)) { - if (h->hba_mode_enabled) - dev_warn(&h->pdev->dev, - "Masked physical device detected\n"); this_device->expose_state = HPSA_DO_NOT_EXPOSE; } else { this_device->expose_state = @@ -3761,30 +3833,21 @@ static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno) ncurrent++; break; case TYPE_DISK: - if (i >= nphysicals) { - ncurrent++; - break; - } - - if (h->hba_mode_enabled) - /* never use raid mapper in HBA mode */ + if (i < nphysicals + (raid_ctlr_position == 0)) { + /* The disk is in HBA mode. */ + /* Never use RAID mapper in HBA mode. */ this_device->offload_enabled = 0; - else if (!(h->transMethod & CFGTBL_Trans_io_accel1 || - h->transMethod & CFGTBL_Trans_io_accel2)) - break; - - hpsa_get_ioaccel_drive_info(h, this_device, - lunaddrbytes, id_phys); - atomic_set(&this_device->ioaccel_cmds_out, 0); + hpsa_get_ioaccel_drive_info(h, this_device, + lunaddrbytes, id_phys); + hpsa_get_path_info(this_device, lunaddrbytes, + id_phys); + } ncurrent++; break; case TYPE_TAPE: case TYPE_MEDIUM_CHANGER: - ncurrent++; - break; case TYPE_ENCLOSURE: - if (h->hba_mode_enabled) - ncurrent++; + ncurrent++; break; case TYPE_RAID: /* Only present the Smartarray HBA as a RAID controller. @@ -5104,7 +5167,7 @@ static int hpsa_eh_device_reset_handler(struct scsi_cmnd *scsicmd) int rc; struct ctlr_info *h; struct hpsa_scsi_dev_t *dev; - char msg[40]; + char msg[48]; /* find the controller to which the command to be aborted was sent */ h = sdev_to_hba(scsicmd->device); @@ -5122,16 +5185,18 @@ static int hpsa_eh_device_reset_handler(struct scsi_cmnd *scsicmd) /* if controller locked up, we can guarantee command won't complete */ if (lockup_detected(h)) { - sprintf(msg, "cmd %d RESET FAILED, lockup detected", - hpsa_get_cmd_index(scsicmd)); + snprintf(msg, sizeof(msg), + "cmd %d RESET FAILED, lockup detected", + hpsa_get_cmd_index(scsicmd)); hpsa_show_dev_msg(KERN_WARNING, h, dev, msg); return FAILED; } /* this reset request might be the result of a lockup; check */ if (detect_controller_lockup(h)) { - sprintf(msg, "cmd %d RESET FAILED, new lockup detected", - hpsa_get_cmd_index(scsicmd)); + snprintf(msg, sizeof(msg), + "cmd %d RESET FAILED, new lockup detected", + hpsa_get_cmd_index(scsicmd)); hpsa_show_dev_msg(KERN_WARNING, h, dev, msg); return FAILED; } @@ -5145,7 +5210,8 @@ static int hpsa_eh_device_reset_handler(struct scsi_cmnd *scsicmd) /* send a reset to the SCSI LUN which the command was sent to */ rc = hpsa_do_reset(h, dev, dev->scsi3addr, HPSA_RESET_TYPE_LUN, DEFAULT_REPLY_QUEUE); - sprintf(msg, "reset %s", rc == 0 ? "completed successfully" : "failed"); + snprintf(msg, sizeof(msg), "reset %s", + rc == 0 ? "completed successfully" : "failed"); hpsa_show_dev_msg(KERN_WARNING, h, dev, msg); return rc == 0 ? SUCCESS : FAILED; } @@ -7989,7 +8055,6 @@ reinit_after_soft_reset: pci_set_drvdata(pdev, h); h->ndevices = 0; - h->hba_mode_enabled = 0; spin_lock_init(&h->devlock); rc = hpsa_put_ctlr_into_performant_mode(h); @@ -8054,7 +8119,7 @@ reinit_after_soft_reset: rc = hpsa_kdump_soft_reset(h); if (rc) /* Neither hard nor soft reset worked, we're hosed. */ - goto clean9; + goto clean7; dev_info(&h->pdev->dev, "Board READY.\n"); dev_info(&h->pdev->dev, @@ -8100,8 +8165,6 @@ reinit_after_soft_reset: h->heartbeat_sample_interval); return 0; -clean9: /* wq, sh, perf, sg, cmd, irq, shost, pci, lu, aer/h */ - kfree(h->hba_inquiry_data); clean7: /* perf, sg, cmd, irq, shost, pci, lu, aer/h */ hpsa_free_performant_mode(h); h->access.set_intr_mask(h, HPSA_INTR_OFF); @@ -8209,6 +8272,14 @@ static void hpsa_remove_one(struct pci_dev *pdev) destroy_workqueue(h->rescan_ctlr_wq); destroy_workqueue(h->resubmit_wq); + /* + * Call before disabling interrupts. + * scsi_remove_host can trigger I/O operations especially + * when multipath is enabled. There can be SYNCHRONIZE CACHE + * operations which cannot complete and will hang the system. + */ + if (h->scsi_host) + scsi_remove_host(h->scsi_host); /* init_one 8 */ /* includes hpsa_free_irqs - init_one 4 */ /* includes hpsa_disable_interrupt_mode - pci_init 2 */ hpsa_shutdown(pdev); @@ -8217,8 +8288,6 @@ static void hpsa_remove_one(struct pci_dev *pdev) kfree(h->hba_inquiry_data); /* init_one 10 */ h->hba_inquiry_data = NULL; /* init_one 10 */ - if (h->scsi_host) - scsi_remove_host(h->scsi_host); /* init_one 8 */ hpsa_free_ioaccel2_sg_chain_blocks(h); hpsa_free_performant_mode(h); /* init_one 7 */ hpsa_free_sg_chain_blocks(h); /* init_one 6 */ diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h index 6ee4da6b1153..27debb363529 100644 --- a/drivers/scsi/hpsa.h +++ b/drivers/scsi/hpsa.h @@ -1,6 +1,7 @@ /* * Disk Array driver for HP Smart Array SAS controllers - * Copyright 2000, 2014 Hewlett-Packard Development Company, L.P. + * Copyright 2014-2015 PMC-Sierra, Inc. + * Copyright 2000,2009-2015 Hewlett-Packard Development Company, L.P. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -11,11 +12,7 @@ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or * NON INFRINGEMENT. See the GNU General Public License for more details. * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - * Questions/Comments/Bugfixes to iss_storagedev@hp.com + * Questions/Comments/Bugfixes to storagedev@pmcs.com * */ #ifndef HPSA_H @@ -53,6 +50,11 @@ struct hpsa_scsi_dev_t { * device via "ioaccel" path. */ u32 ioaccel_handle; + u8 active_path_index; + u8 path_map; + u8 bay; + u8 box[8]; + u16 phys_connector[8]; int offload_config; /* I/O accel RAID offload configured */ int offload_enabled; /* I/O accel RAID offload enabled */ int offload_to_be_enabled; @@ -114,7 +116,6 @@ struct bmic_controller_parameters { u8 automatic_drive_slamming; u8 reserved1; u8 nvram_flags; -#define HBA_MODE_ENABLED_FLAG (1 << 3) u8 cache_nvram_flags; u8 drive_config_flags; u16 reserved2; @@ -153,7 +154,6 @@ struct ctlr_info { unsigned int msi_vector; int intr_mode; /* either PERF_MODE_INT or SIMPLE_MODE_INT */ struct access_method access; - char hba_mode_enabled; /* queue and queue Info */ unsigned int Qdepth; diff --git a/drivers/scsi/hpsa_cmd.h b/drivers/scsi/hpsa_cmd.h index c601622cc98e..47c756ba8dce 100644 --- a/drivers/scsi/hpsa_cmd.h +++ b/drivers/scsi/hpsa_cmd.h @@ -1,6 +1,7 @@ /* * Disk Array driver for HP Smart Array SAS controllers - * Copyright 2000, 2014 Hewlett-Packard Development Company, L.P. + * Copyright 2014-2015 PMC-Sierra, Inc. + * Copyright 2000,2009-2015 Hewlett-Packard Development Company, L.P. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -11,11 +12,7 @@ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or * NON INFRINGEMENT. See the GNU General Public License for more details. * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - * Questions/Comments/Bugfixes to iss_storagedev@hp.com + * Questions/Comments/Bugfixes to storagedev@pmcs.com * */ #ifndef HPSA_CMD_H @@ -167,6 +164,7 @@ /* Logical volume states */ #define HPSA_VPD_LV_STATUS_UNSUPPORTED 0xff #define HPSA_LV_OK 0x0 +#define HPSA_LV_NOT_AVAILABLE 0x0b #define HPSA_LV_UNDERGOING_ERASE 0x0F #define HPSA_LV_UNDERGOING_RPI 0x12 #define HPSA_LV_PENDING_RPI 0x13 diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c index e995218476ed..a83f705ed8a5 100644 --- a/drivers/scsi/hptiop.c +++ b/drivers/scsi/hptiop.c @@ -1,6 +1,6 @@ /* * HighPoint RR3xxx/4xxx controller driver for Linux - * Copyright (C) 2006-2012 HighPoint Technologies, Inc. All Rights Reserved. + * Copyright (C) 2006-2015 HighPoint Technologies, Inc. All Rights Reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -42,7 +42,7 @@ MODULE_DESCRIPTION("HighPoint RocketRAID 3xxx/4xxx Controller Driver"); static char driver_name[] = "hptiop"; static const char driver_name_long[] = "RocketRAID 3xxx/4xxx Controller driver"; -static const char driver_ver[] = "v1.8"; +static const char driver_ver[] = "v1.10.0"; static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec); static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag, @@ -764,9 +764,7 @@ static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag, scsi_set_resid(scp, scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length)); scp->result = SAM_STAT_CHECK_CONDITION; - memcpy(scp->sense_buffer, &req->sg_list, - min_t(size_t, SCSI_SENSE_BUFFERSIZE, - le32_to_cpu(req->dataxfer_length))); + memcpy(scp->sense_buffer, &req->sg_list, SCSI_SENSE_BUFFERSIZE); goto skip_resid; break; @@ -1037,8 +1035,9 @@ static int hptiop_queuecommand_lck(struct scsi_cmnd *scp, scp->result = 0; - if (scp->device->channel || scp->device->lun || - scp->device->id > hba->max_devices) { + if (scp->device->channel || + (scp->device->id > hba->max_devices) || + ((scp->device->id == (hba->max_devices-1)) && scp->device->lun)) { scp->result = DID_BAD_TARGET << 16; free_req(hba, _req); goto cmd_done; @@ -1168,6 +1167,14 @@ static struct device_attribute *hptiop_attrs[] = { NULL }; +static int hptiop_slave_config(struct scsi_device *sdev) +{ + if (sdev->type == TYPE_TAPE) + blk_queue_max_hw_sectors(sdev->request_queue, 8192); + + return 0; +} + static struct scsi_host_template driver_template = { .module = THIS_MODULE, .name = driver_name, @@ -1179,6 +1186,7 @@ static struct scsi_host_template driver_template = { .use_clustering = ENABLE_CLUSTERING, .proc_name = driver_name, .shost_attrs = hptiop_attrs, + .slave_configure = hptiop_slave_config, .this_id = -1, .change_queue_depth = hptiop_adjust_disk_queue_depth, }; @@ -1323,6 +1331,7 @@ static int hptiop_probe(struct pci_dev *pcidev, const struct pci_device_id *id) } hba = (struct hptiop_hba *)host->hostdata; + memset(hba, 0, sizeof(struct hptiop_hba)); hba->ops = iop_ops; hba->pcidev = pcidev; @@ -1336,7 +1345,7 @@ static int hptiop_probe(struct pci_dev *pcidev, const struct pci_device_id *id) init_waitqueue_head(&hba->reset_wq); init_waitqueue_head(&hba->ioctl_wq); - host->max_lun = 1; + host->max_lun = 128; host->max_channel = 0; host->io_port = 0; host->n_io_port = 0; @@ -1428,34 +1437,33 @@ static int hptiop_probe(struct pci_dev *pcidev, const struct pci_device_id *id) dprintk("req_size=%d, max_requests=%d\n", req_size, hba->max_requests); hba->req_size = req_size; - start_virt = dma_alloc_coherent(&pcidev->dev, - hba->req_size*hba->max_requests + 0x20, - &start_phy, GFP_KERNEL); + hba->req_list = NULL; - if (!start_virt) { - printk(KERN_ERR "scsi%d: fail to alloc request mem\n", - hba->host->host_no); - goto free_request_irq; - } + for (i = 0; i < hba->max_requests; i++) { + start_virt = dma_alloc_coherent(&pcidev->dev, + hba->req_size + 0x20, + &start_phy, GFP_KERNEL); + + if (!start_virt) { + printk(KERN_ERR "scsi%d: fail to alloc request mem\n", + hba->host->host_no); + goto free_request_mem; + } - hba->dma_coherent = start_virt; - hba->dma_coherent_handle = start_phy; + hba->dma_coherent[i] = start_virt; + hba->dma_coherent_handle[i] = start_phy; - if ((start_phy & 0x1f) != 0) { - offset = ((start_phy + 0x1f) & ~0x1f) - start_phy; - start_phy += offset; - start_virt += offset; - } + if ((start_phy & 0x1f) != 0) { + offset = ((start_phy + 0x1f) & ~0x1f) - start_phy; + start_phy += offset; + start_virt += offset; + } - hba->req_list = NULL; - for (i = 0; i < hba->max_requests; i++) { hba->reqs[i].next = NULL; hba->reqs[i].req_virt = start_virt; hba->reqs[i].req_shifted_phy = start_phy >> 5; hba->reqs[i].index = i; free_req(hba, &hba->reqs[i]); - start_virt = (char *)start_virt + hba->req_size; - start_phy = start_phy + hba->req_size; } /* Enable Interrupt and start background task */ @@ -1474,11 +1482,16 @@ static int hptiop_probe(struct pci_dev *pcidev, const struct pci_device_id *id) return 0; free_request_mem: - dma_free_coherent(&hba->pcidev->dev, - hba->req_size * hba->max_requests + 0x20, - hba->dma_coherent, hba->dma_coherent_handle); + for (i = 0; i < hba->max_requests; i++) { + if (hba->dma_coherent[i] && hba->dma_coherent_handle[i]) + dma_free_coherent(&hba->pcidev->dev, + hba->req_size + 0x20, + hba->dma_coherent[i], + hba->dma_coherent_handle[i]); + else + break; + } -free_request_irq: free_irq(hba->pcidev->irq, hba); unmap_pci_bar: @@ -1546,6 +1559,7 @@ static void hptiop_remove(struct pci_dev *pcidev) { struct Scsi_Host *host = pci_get_drvdata(pcidev); struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; + u32 i; dprintk("scsi%d: hptiop_remove\n", hba->host->host_no); @@ -1555,10 +1569,15 @@ static void hptiop_remove(struct pci_dev *pcidev) free_irq(hba->pcidev->irq, hba); - dma_free_coherent(&hba->pcidev->dev, - hba->req_size * hba->max_requests + 0x20, - hba->dma_coherent, - hba->dma_coherent_handle); + for (i = 0; i < hba->max_requests; i++) { + if (hba->dma_coherent[i] && hba->dma_coherent_handle[i]) + dma_free_coherent(&hba->pcidev->dev, + hba->req_size + 0x20, + hba->dma_coherent[i], + hba->dma_coherent_handle[i]); + else + break; + } hba->ops->internal_memfree(hba); @@ -1653,6 +1672,14 @@ static struct pci_device_id hptiop_id_table[] = { { PCI_VDEVICE(TTI, 0x3020), (kernel_ulong_t)&hptiop_mv_ops }, { PCI_VDEVICE(TTI, 0x4520), (kernel_ulong_t)&hptiop_mvfrey_ops }, { PCI_VDEVICE(TTI, 0x4522), (kernel_ulong_t)&hptiop_mvfrey_ops }, + { PCI_VDEVICE(TTI, 0x3610), (kernel_ulong_t)&hptiop_mvfrey_ops }, + { PCI_VDEVICE(TTI, 0x3611), (kernel_ulong_t)&hptiop_mvfrey_ops }, + { PCI_VDEVICE(TTI, 0x3620), (kernel_ulong_t)&hptiop_mvfrey_ops }, + { PCI_VDEVICE(TTI, 0x3622), (kernel_ulong_t)&hptiop_mvfrey_ops }, + { PCI_VDEVICE(TTI, 0x3640), (kernel_ulong_t)&hptiop_mvfrey_ops }, + { PCI_VDEVICE(TTI, 0x3660), (kernel_ulong_t)&hptiop_mvfrey_ops }, + { PCI_VDEVICE(TTI, 0x3680), (kernel_ulong_t)&hptiop_mvfrey_ops }, + { PCI_VDEVICE(TTI, 0x3690), (kernel_ulong_t)&hptiop_mvfrey_ops }, {}, }; diff --git a/drivers/scsi/hptiop.h b/drivers/scsi/hptiop.h index 020619d60b08..4d1c51153b70 100644 --- a/drivers/scsi/hptiop.h +++ b/drivers/scsi/hptiop.h @@ -1,6 +1,6 @@ /* * HighPoint RR3xxx/4xxx controller driver for Linux - * Copyright (C) 2006-2012 HighPoint Technologies, Inc. All Rights Reserved. + * Copyright (C) 2006-2015 HighPoint Technologies, Inc. All Rights Reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -327,8 +327,8 @@ struct hptiop_hba { struct hptiop_request reqs[HPTIOP_MAX_REQUESTS]; /* used to free allocated dma area */ - void *dma_coherent; - dma_addr_t dma_coherent_handle; + void *dma_coherent[HPTIOP_MAX_REQUESTS]; + dma_addr_t dma_coherent_handle[HPTIOP_MAX_REQUESTS]; atomic_t reset_count; atomic_t resetting; diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index 882744852aac..b62836ddbbee 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -599,9 +599,10 @@ static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd, { struct ipr_trace_entry *trace_entry; struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; + unsigned int trace_index; - trace_entry = &ioa_cfg->trace[atomic_add_return - (1, &ioa_cfg->trace_index)%IPR_NUM_TRACE_ENTRIES]; + trace_index = atomic_add_return(1, &ioa_cfg->trace_index) & IPR_TRACE_INDEX_MASK; + trace_entry = &ioa_cfg->trace[trace_index]; trace_entry->time = jiffies; trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0]; trace_entry->type = type; @@ -1051,10 +1052,15 @@ static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd, static int ipr_get_hrrq_index(struct ipr_ioa_cfg *ioa_cfg) { + unsigned int hrrq; + if (ioa_cfg->hrrq_num == 1) - return 0; - else - return (atomic_add_return(1, &ioa_cfg->hrrq_index) % (ioa_cfg->hrrq_num - 1)) + 1; + hrrq = 0; + else { + hrrq = atomic_add_return(1, &ioa_cfg->hrrq_index); + hrrq = (hrrq % (ioa_cfg->hrrq_num - 1)) + 1; + } + return hrrq; } /** @@ -1159,7 +1165,8 @@ static void ipr_init_res_entry(struct ipr_resource_entry *res, if (ioa_cfg->sis64) { proto = cfgtew->u.cfgte64->proto; - res->res_flags = cfgtew->u.cfgte64->res_flags; + res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags); + res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags); res->qmodel = IPR_QUEUEING_MODEL64(res); res->type = cfgtew->u.cfgte64->res_type; @@ -1307,8 +1314,8 @@ static void ipr_update_res_entry(struct ipr_resource_entry *res, int new_path = 0; if (res->ioa_cfg->sis64) { - res->flags = cfgtew->u.cfgte64->flags; - res->res_flags = cfgtew->u.cfgte64->res_flags; + res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags); + res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags); res->type = cfgtew->u.cfgte64->res_type; memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data, @@ -1894,7 +1901,7 @@ static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg, * Return value: * none **/ -static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len) +static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, __be32 *data, int len) { int i; @@ -2264,7 +2271,7 @@ static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg, ((unsigned long)fabric + be16_to_cpu(fabric->length)); } - ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len); + ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len); } /** @@ -2358,7 +2365,7 @@ static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg, ((unsigned long)fabric + be16_to_cpu(fabric->length)); } - ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len); + ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len); } /** @@ -4449,7 +4456,7 @@ static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *a spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); res = (struct ipr_resource_entry *)sdev->hostdata; if (res && ioa_cfg->sis64) - len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->dev_id); + len = snprintf(buf, PAGE_SIZE, "0x%llx\n", be64_to_cpu(res->dev_id)); else if (res) len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn); @@ -4548,7 +4555,7 @@ static ssize_t ipr_store_raw_mode(struct device *dev, spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); res = (struct ipr_resource_entry *)sdev->hostdata; if (res) { - if (ioa_cfg->sis64 && ipr_is_af_dasd_device(res)) { + if (ipr_is_af_dasd_device(res)) { res->raw_mode = simple_strtoul(buf, NULL, 10); len = strlen(buf); if (res->sdev) @@ -6263,21 +6270,23 @@ static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd) struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); - unsigned long hrrq_flags; + unsigned long lock_flags; scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len)); if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) { scsi_dma_unmap(scsi_cmd); - spin_lock_irqsave(ipr_cmd->hrrq->lock, hrrq_flags); + spin_lock_irqsave(ipr_cmd->hrrq->lock, lock_flags); list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); scsi_cmd->scsi_done(scsi_cmd); - spin_unlock_irqrestore(ipr_cmd->hrrq->lock, hrrq_flags); + spin_unlock_irqrestore(ipr_cmd->hrrq->lock, lock_flags); } else { - spin_lock_irqsave(ipr_cmd->hrrq->lock, hrrq_flags); + spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); + spin_lock(&ipr_cmd->hrrq->_lock); ipr_erp_start(ioa_cfg, ipr_cmd); - spin_unlock_irqrestore(ipr_cmd->hrrq->lock, hrrq_flags); + spin_unlock(&ipr_cmd->hrrq->_lock); + spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); } } @@ -6374,9 +6383,13 @@ static int ipr_queuecommand(struct Scsi_Host *shost, (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) { ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; } - if (res->raw_mode && ipr_is_af_dasd_device(res)) + if (res->raw_mode && ipr_is_af_dasd_device(res)) { ioarcb->cmd_pkt.request_type = IPR_RQTYPE_PIPE; + if (scsi_cmd->underflow == 0) + ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; + } + if (ioa_cfg->sis64) rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd); else diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h index 73790a1d0969..e4fb17a58649 100644 --- a/drivers/scsi/ipr.h +++ b/drivers/scsi/ipr.h @@ -39,8 +39,8 @@ /* * Literals */ -#define IPR_DRIVER_VERSION "2.6.1" -#define IPR_DRIVER_DATE "(March 12, 2015)" +#define IPR_DRIVER_VERSION "2.6.2" +#define IPR_DRIVER_DATE "(June 11, 2015)" /* * IPR_MAX_CMD_PER_LUN: This defines the maximum number of outstanding @@ -1005,13 +1005,13 @@ struct ipr_hostrcb_type_24_error { struct ipr_hostrcb_type_07_error { u8 failure_reason[64]; struct ipr_vpd vpd; - u32 data[222]; + __be32 data[222]; }__attribute__((packed, aligned (4))); struct ipr_hostrcb_type_17_error { u8 failure_reason[64]; struct ipr_ext_vpd vpd; - u32 data[476]; + __be32 data[476]; }__attribute__((packed, aligned (4))); struct ipr_hostrcb_config_element { @@ -1289,18 +1289,17 @@ struct ipr_resource_entry { (((res)->bus << 24) | ((res)->target << 8) | (res)->lun) u8 ata_class; - - u8 flags; - __be16 res_flags; - u8 type; + u16 flags; + u16 res_flags; + u8 qmodel; struct ipr_std_inq_data std_inq_data; __be32 res_handle; __be64 dev_id; - __be64 lun_wwn; + u64 lun_wwn; struct scsi_lun dev_lun; u8 res_path[8]; @@ -1486,6 +1485,7 @@ struct ipr_ioa_cfg { #define IPR_NUM_TRACE_INDEX_BITS 8 #define IPR_NUM_TRACE_ENTRIES (1 << IPR_NUM_TRACE_INDEX_BITS) +#define IPR_TRACE_INDEX_MASK (IPR_NUM_TRACE_ENTRIES - 1) #define IPR_TRACE_SIZE (sizeof(struct ipr_trace_entry) * IPR_NUM_TRACE_ENTRIES) char trace_start[8]; #define IPR_TRACE_START_LABEL "trace" diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c index 1b3a09473452..30f9ef0c0d4f 100644 --- a/drivers/scsi/libfc/fc_exch.c +++ b/drivers/scsi/libfc/fc_exch.c @@ -733,8 +733,6 @@ static bool fc_invoke_resp(struct fc_exch *ep, struct fc_seq *sp, if (resp) { resp(sp, fp, arg); res = true; - } else if (!IS_ERR(fp)) { - fc_frame_free(fp); } spin_lock_bh(&ep->ex_lock); @@ -1596,7 +1594,8 @@ static void fc_exch_recv_seq_resp(struct fc_exch_mgr *mp, struct fc_frame *fp) * If new exch resp handler is valid then call that * first. */ - fc_invoke_resp(ep, sp, fp); + if (!fc_invoke_resp(ep, sp, fp)) + fc_frame_free(fp); fc_exch_release(ep); return; @@ -1695,7 +1694,8 @@ static void fc_exch_abts_resp(struct fc_exch *ep, struct fc_frame *fp) fc_exch_hold(ep); if (!rc) fc_exch_delete(ep); - fc_invoke_resp(ep, sp, fp); + if (!fc_invoke_resp(ep, sp, fp)) + fc_frame_free(fp); if (has_rec) fc_exch_timer_set(ep, ep->r_a_tov); fc_exch_release(ep); diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c index c6795941b45d..5121272f28fd 100644 --- a/drivers/scsi/libfc/fc_fcp.c +++ b/drivers/scsi/libfc/fc_fcp.c @@ -191,7 +191,7 @@ static void fc_fcp_pkt_hold(struct fc_fcp_pkt *fsp) } /** - * fc_fcp_pkt_destory() - Release hold on a fcp_pkt + * fc_fcp_pkt_destroy() - Release hold on a fcp_pkt * @seq: The sequence that the FCP packet is on (required by destructor API) * @fsp: The FCP packet to be released * @@ -1039,11 +1039,26 @@ restart: fc_fcp_pkt_hold(fsp); spin_unlock_irqrestore(&si->scsi_queue_lock, flags); - if (!fc_fcp_lock_pkt(fsp)) { + spin_lock_bh(&fsp->scsi_pkt_lock); + if (!(fsp->state & FC_SRB_COMPL)) { + fsp->state |= FC_SRB_COMPL; + /* + * TODO: dropping scsi_pkt_lock and then reacquiring + * again around fc_fcp_cleanup_cmd() is required, + * since fc_fcp_cleanup_cmd() calls into + * fc_seq_set_resp() and that func preempts cpu using + * schedule. May be schedule and related code should be + * removed instead of unlocking here to avoid scheduling + * while atomic bug. + */ + spin_unlock_bh(&fsp->scsi_pkt_lock); + fc_fcp_cleanup_cmd(fsp, error); + + spin_lock_bh(&fsp->scsi_pkt_lock); fc_io_compl(fsp); - fc_fcp_unlock_pkt(fsp); } + spin_unlock_bh(&fsp->scsi_pkt_lock); fc_fcp_pkt_release(fsp); spin_lock_irqsave(&si->scsi_queue_lock, flags); diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index bb5ca7f3d16d..33c74d3436c9 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -2938,10 +2938,10 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn) { struct iscsi_conn *conn = cls_conn->dd_data; struct iscsi_session *session = conn->session; - unsigned long flags; del_timer_sync(&conn->transport_timer); + mutex_lock(&session->eh_mutex); spin_lock_bh(&session->frwd_lock); conn->c_stage = ISCSI_CONN_CLEANUP_WAIT; if (session->leadconn == conn) { @@ -2953,28 +2953,6 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn) } spin_unlock_bh(&session->frwd_lock); - /* - * Block until all in-progress commands for this connection - * time out or fail. - */ - for (;;) { - spin_lock_irqsave(session->host->host_lock, flags); - if (!atomic_read(&session->host->host_busy)) { /* OK for ERL == 0 */ - spin_unlock_irqrestore(session->host->host_lock, flags); - break; - } - spin_unlock_irqrestore(session->host->host_lock, flags); - msleep_interruptible(500); - iscsi_conn_printk(KERN_INFO, conn, "iscsi conn_destroy(): " - "host_busy %d host_failed %d\n", - atomic_read(&session->host->host_busy), - session->host->host_failed); - /* - * force eh_abort() to unblock - */ - wake_up(&conn->ehwait); - } - /* flush queued up work because we free the connection below */ iscsi_suspend_tx(conn); @@ -2991,6 +2969,7 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn) if (session->leadconn == conn) session->leadconn = NULL; spin_unlock_bh(&session->frwd_lock); + mutex_unlock(&session->eh_mutex); iscsi_destroy_conn(cls_conn); } diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c index ce96d5bf8ae7..759cbebed7c7 100644 --- a/drivers/scsi/lpfc/lpfc_hbadisc.c +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c @@ -701,7 +701,7 @@ lpfc_work_done(struct lpfc_hba *phba) HA_RXMASK)); } } - if ((phba->sli_rev == LPFC_SLI_REV4) & + if ((phba->sli_rev == LPFC_SLI_REV4) && (!list_empty(&pring->txq))) lpfc_drain_txq(phba); /* diff --git a/drivers/scsi/lpfc/lpfc_mbox.c b/drivers/scsi/lpfc/lpfc_mbox.c index eb627724417e..4abb93a83e0f 100644 --- a/drivers/scsi/lpfc/lpfc_mbox.c +++ b/drivers/scsi/lpfc/lpfc_mbox.c @@ -2284,7 +2284,7 @@ lpfc_mbx_cmpl_rdp_page_a2(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox) (struct lpfc_rdp_context *)(mbox->context2); if (bf_get(lpfc_mqe_status, &mbox->u.mqe)) - goto error; + goto error_mbuf_free; lpfc_sli_bemem_bcopy(mp->virt, &rdp_context->page_a2, DMP_SFF_PAGE_A2_SIZE); @@ -2299,13 +2299,14 @@ lpfc_mbx_cmpl_rdp_page_a2(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox) mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_link_stat; mbox->context2 = (struct lpfc_rdp_context *) rdp_context; if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) == MBX_NOT_FINISHED) - goto error; + goto error_cmd_free; return; -error: +error_mbuf_free: lpfc_mbuf_free(phba, mp->virt, mp->phys); kfree(mp); +error_cmd_free: lpfc_sli4_mbox_cmd_free(phba, mbox); rdp_context->cmpl(phba, rdp_context, FAILURE); } diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c index bc7b34c02723..9d05302a3bcd 100644 --- a/drivers/scsi/megaraid.c +++ b/drivers/scsi/megaraid.c @@ -268,8 +268,8 @@ mega_query_adapter(adapter_t *adapter) raw_mbox[2] = NC_SUBOP_PRODUCT_INFO; /* i.e. 0x0E */ if ((retval = issue_scb_block(adapter, raw_mbox))) - printk(KERN_WARNING - "megaraid: Product_info cmd failed with error: %d\n", + dev_warn(&adapter->dev->dev, + "Product_info cmd failed with error: %d\n", retval); pci_unmap_single(adapter->dev, prod_info_dma_handle, @@ -334,7 +334,7 @@ mega_query_adapter(adapter_t *adapter) adapter->bios_version[4] = 0; } - printk(KERN_NOTICE "megaraid: [%s:%s] detected %d logical drives.\n", + dev_notice(&adapter->dev->dev, "[%s:%s] detected %d logical drives\n", adapter->fw_version, adapter->bios_version, adapter->numldrv); /* @@ -342,7 +342,7 @@ mega_query_adapter(adapter_t *adapter) */ adapter->support_ext_cdb = mega_support_ext_cdb(adapter); if (adapter->support_ext_cdb) - printk(KERN_NOTICE "megaraid: supports extended CDBs.\n"); + dev_notice(&adapter->dev->dev, "supports extended CDBs\n"); return 0; @@ -678,11 +678,11 @@ mega_build_cmd(adapter_t *adapter, Scsi_Cmnd *cmd, int *busy) if(!(adapter->flag & (1L << cmd->device->channel))) { - printk(KERN_NOTICE - "scsi%d: scanning scsi channel %d ", + dev_notice(&adapter->dev->dev, + "scsi%d: scanning scsi channel %d " + "for logical drives\n", adapter->host->host_no, cmd->device->channel); - printk("for logical drives.\n"); adapter->flag |= (1L << cmd->device->channel); } @@ -983,11 +983,11 @@ mega_prepare_passthru(adapter_t *adapter, scb_t *scb, Scsi_Cmnd *cmd, case READ_CAPACITY: if(!(adapter->flag & (1L << cmd->device->channel))) { - printk(KERN_NOTICE - "scsi%d: scanning scsi channel %d [P%d] ", + dev_notice(&adapter->dev->dev, + "scsi%d: scanning scsi channel %d [P%d] " + "for physical devices\n", adapter->host->host_no, cmd->device->channel, channel); - printk("for physical devices.\n"); adapter->flag |= (1L << cmd->device->channel); } @@ -1045,11 +1045,11 @@ mega_prepare_extpassthru(adapter_t *adapter, scb_t *scb, Scsi_Cmnd *cmd, case READ_CAPACITY: if(!(adapter->flag & (1L << cmd->device->channel))) { - printk(KERN_NOTICE - "scsi%d: scanning scsi channel %d [P%d] ", + dev_notice(&adapter->dev->dev, + "scsi%d: scanning scsi channel %d [P%d] " + "for physical devices\n", adapter->host->host_no, cmd->device->channel, channel); - printk("for physical devices.\n"); adapter->flag |= (1L << cmd->device->channel); } @@ -1241,7 +1241,7 @@ issue_scb_block(adapter_t *adapter, u_char *raw_mbox) return mbox->m_in.status; bug_blocked_mailbox: - printk(KERN_WARNING "megaraid: Blocked mailbox......!!\n"); + dev_warn(&adapter->dev->dev, "Blocked mailbox......!!\n"); udelay (1000); return -1; } @@ -1454,9 +1454,8 @@ mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status) * Make sure f/w has completed a valid command */ if( !(scb->state & SCB_ISSUED) || scb->cmd == NULL ) { - printk(KERN_CRIT - "megaraid: invalid command "); - printk("Id %d, scb->state:%x, scsi cmd:%p\n", + dev_crit(&adapter->dev->dev, "invalid command " + "Id %d, scb->state:%x, scsi cmd:%p\n", cmdid, scb->state, scb->cmd); continue; @@ -1467,8 +1466,8 @@ mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status) */ if( scb->state & SCB_ABORT ) { - printk(KERN_WARNING - "megaraid: aborted cmd [%x] complete.\n", + dev_warn(&adapter->dev->dev, + "aborted cmd [%x] complete\n", scb->idx); scb->cmd->result = (DID_ABORT << 16); @@ -1486,8 +1485,8 @@ mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status) */ if( scb->state & SCB_RESET ) { - printk(KERN_WARNING - "megaraid: reset cmd [%x] complete.\n", + dev_warn(&adapter->dev->dev, + "reset cmd [%x] complete\n", scb->idx); scb->cmd->result = (DID_RESET << 16); @@ -1553,8 +1552,7 @@ mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status) if( sg_page(sgl) ) { c = *(unsigned char *) sg_virt(&sgl[0]); } else { - printk(KERN_WARNING - "megaraid: invalid sg.\n"); + dev_warn(&adapter->dev->dev, "invalid sg\n"); c = 0; } @@ -1902,11 +1900,10 @@ megaraid_reset(struct scsi_cmnd *cmd) mc.opcode = MEGA_RESET_RESERVATIONS; if( mega_internal_command(adapter, &mc, NULL) != 0 ) { - printk(KERN_WARNING - "megaraid: reservation reset failed.\n"); + dev_warn(&adapter->dev->dev, "reservation reset failed\n"); } else { - printk(KERN_INFO "megaraid: reservation reset.\n"); + dev_info(&adapter->dev->dev, "reservation reset\n"); } #endif @@ -1939,7 +1936,7 @@ megaraid_abort_and_reset(adapter_t *adapter, Scsi_Cmnd *cmd, int aor) struct list_head *pos, *next; scb_t *scb; - printk(KERN_WARNING "megaraid: %s cmd=%x <c=%d t=%d l=%d>\n", + dev_warn(&adapter->dev->dev, "%s cmd=%x <c=%d t=%d l=%d>\n", (aor == SCB_ABORT)? "ABORTING":"RESET", cmd->cmnd[0], cmd->device->channel, cmd->device->id, (u32)cmd->device->lun); @@ -1963,8 +1960,8 @@ megaraid_abort_and_reset(adapter_t *adapter, Scsi_Cmnd *cmd, int aor) */ if( scb->state & SCB_ISSUED ) { - printk(KERN_WARNING - "megaraid: %s[%x], fw owner.\n", + dev_warn(&adapter->dev->dev, + "%s[%x], fw owner\n", (aor==SCB_ABORT) ? "ABORTING":"RESET", scb->idx); @@ -1976,8 +1973,8 @@ megaraid_abort_and_reset(adapter_t *adapter, Scsi_Cmnd *cmd, int aor) * Not yet issued! Remove from the pending * list */ - printk(KERN_WARNING - "megaraid: %s-[%x], driver owner.\n", + dev_warn(&adapter->dev->dev, + "%s-[%x], driver owner\n", (aor==SCB_ABORT) ? "ABORTING":"RESET", scb->idx); @@ -2197,7 +2194,7 @@ proc_show_rebuild_rate(struct seq_file *m, void *v) if( mega_adapinq(adapter, dma_handle) != 0 ) { seq_puts(m, "Adapter inquiry failed.\n"); - printk(KERN_WARNING "megaraid: inquiry failed.\n"); + dev_warn(&adapter->dev->dev, "inquiry failed\n"); goto free_inquiry; } @@ -2241,7 +2238,7 @@ proc_show_battery(struct seq_file *m, void *v) if( mega_adapinq(adapter, dma_handle) != 0 ) { seq_puts(m, "Adapter inquiry failed.\n"); - printk(KERN_WARNING "megaraid: inquiry failed.\n"); + dev_warn(&adapter->dev->dev, "inquiry failed\n"); goto free_inquiry; } @@ -2350,7 +2347,7 @@ proc_show_pdrv(struct seq_file *m, adapter_t *adapter, int channel) if( mega_adapinq(adapter, dma_handle) != 0 ) { seq_puts(m, "Adapter inquiry failed.\n"); - printk(KERN_WARNING "megaraid: inquiry failed.\n"); + dev_warn(&adapter->dev->dev, "inquiry failed\n"); goto free_inquiry; } @@ -2525,7 +2522,7 @@ proc_show_rdrv(struct seq_file *m, adapter_t *adapter, int start, int end ) if( mega_adapinq(adapter, dma_handle) != 0 ) { seq_puts(m, "Adapter inquiry failed.\n"); - printk(KERN_WARNING "megaraid: inquiry failed.\n"); + dev_warn(&adapter->dev->dev, "inquiry failed\n"); goto free_inquiry; } @@ -2799,7 +2796,7 @@ mega_create_proc_entry(int index, struct proc_dir_entry *parent) dir = adapter->controller_proc_dir_entry = proc_mkdir_data(string, 0, parent, adapter); if(!dir) { - printk(KERN_WARNING "\nmegaraid: proc_mkdir failed\n"); + dev_warn(&adapter->dev->dev, "proc_mkdir failed\n"); return; } @@ -2807,7 +2804,7 @@ mega_create_proc_entry(int index, struct proc_dir_entry *parent) de = proc_create_data(f->name, S_IRUSR, dir, &mega_proc_fops, f->show); if (!de) { - printk(KERN_WARNING "\nmegaraid: proc_create failed\n"); + dev_warn(&adapter->dev->dev, "proc_create failed\n"); return; } @@ -2874,9 +2871,9 @@ megaraid_biosparam(struct scsi_device *sdev, struct block_device *bdev, return rval; } - printk(KERN_INFO - "megaraid: invalid partition on this disk on channel %d\n", - sdev->channel); + dev_info(&adapter->dev->dev, + "invalid partition on this disk on channel %d\n", + sdev->channel); /* Default heads (64) & sectors (32) */ heads = 64; @@ -2936,7 +2933,7 @@ mega_init_scb(adapter_t *adapter) scb->sgl = (mega_sglist *)scb->sgl64; if( !scb->sgl ) { - printk(KERN_WARNING "RAID: Can't allocate sglist.\n"); + dev_warn(&adapter->dev->dev, "RAID: Can't allocate sglist\n"); mega_free_sgl(adapter); return -1; } @@ -2946,7 +2943,7 @@ mega_init_scb(adapter_t *adapter) &scb->pthru_dma_addr); if( !scb->pthru ) { - printk(KERN_WARNING "RAID: Can't allocate passthru.\n"); + dev_warn(&adapter->dev->dev, "RAID: Can't allocate passthru\n"); mega_free_sgl(adapter); return -1; } @@ -2956,8 +2953,8 @@ mega_init_scb(adapter_t *adapter) &scb->epthru_dma_addr); if( !scb->epthru ) { - printk(KERN_WARNING - "Can't allocate extended passthru.\n"); + dev_warn(&adapter->dev->dev, + "Can't allocate extended passthru\n"); mega_free_sgl(adapter); return -1; } @@ -3154,8 +3151,8 @@ megadev_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) * Do we support this feature */ if( !adapter->support_random_del ) { - printk(KERN_WARNING "megaraid: logdrv "); - printk("delete on non-supporting F/W.\n"); + dev_warn(&adapter->dev->dev, "logdrv " + "delete on non-supporting F/W\n"); return (-EINVAL); } @@ -3179,7 +3176,7 @@ megadev_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) if( uioc.uioc_rmbox[0] == MEGA_MBOXCMD_PASSTHRU64 || uioc.uioc_rmbox[0] == MEGA_MBOXCMD_EXTPTHRU ) { - printk(KERN_WARNING "megaraid: rejected passthru.\n"); + dev_warn(&adapter->dev->dev, "rejected passthru\n"); return (-EINVAL); } @@ -3683,11 +3680,11 @@ mega_enum_raid_scsi(adapter_t *adapter) for( i = 0; i < adapter->product_info.nchannels; i++ ) { if( (adapter->mega_ch_class >> i) & 0x01 ) { - printk(KERN_INFO "megaraid: channel[%d] is raid.\n", + dev_info(&adapter->dev->dev, "channel[%d] is raid\n", i); } else { - printk(KERN_INFO "megaraid: channel[%d] is scsi.\n", + dev_info(&adapter->dev->dev, "channel[%d] is scsi\n", i); } } @@ -3893,7 +3890,7 @@ mega_do_del_logdrv(adapter_t *adapter, int logdrv) /* log this event */ if(rval) { - printk(KERN_WARNING "megaraid: Delete LD-%d failed.", logdrv); + dev_warn(&adapter->dev->dev, "Delete LD-%d failed", logdrv); return rval; } @@ -4161,7 +4158,7 @@ mega_internal_command(adapter_t *adapter, megacmd_t *mc, mega_passthru *pthru) * this information. */ if (rval && trace_level) { - printk("megaraid: cmd [%x, %x, %x] status:[%x]\n", + dev_info(&adapter->dev->dev, "cmd [%x, %x, %x] status:[%x]\n", mc->cmd, mc->opcode, mc->subopcode, rval); } @@ -4244,11 +4241,8 @@ megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) subsysvid = pdev->subsystem_vendor; subsysid = pdev->subsystem_device; - printk(KERN_NOTICE "megaraid: found 0x%4.04x:0x%4.04x:bus %d:", - id->vendor, id->device, pci_bus); - - printk("slot %d:func %d\n", - PCI_SLOT(pci_dev_func), PCI_FUNC(pci_dev_func)); + dev_notice(&pdev->dev, "found 0x%4.04x:0x%4.04x\n", + id->vendor, id->device); /* Read the base port and IRQ from PCI */ mega_baseport = pci_resource_start(pdev, 0); @@ -4259,14 +4253,13 @@ megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) flag |= BOARD_MEMMAP; if (!request_mem_region(mega_baseport, 128, "megaraid")) { - printk(KERN_WARNING "megaraid: mem region busy!\n"); + dev_warn(&pdev->dev, "mem region busy!\n"); goto out_disable_device; } mega_baseport = (unsigned long)ioremap(mega_baseport, 128); if (!mega_baseport) { - printk(KERN_WARNING - "megaraid: could not map hba memory\n"); + dev_warn(&pdev->dev, "could not map hba memory\n"); goto out_release_region; } } else { @@ -4285,7 +4278,7 @@ megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) adapter = (adapter_t *)host->hostdata; memset(adapter, 0, sizeof(adapter_t)); - printk(KERN_NOTICE + dev_notice(&pdev->dev, "scsi%d:Found MegaRAID controller at 0x%lx, IRQ:%d\n", host->host_no, mega_baseport, irq); @@ -4323,21 +4316,20 @@ megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) adapter->mega_buffer = pci_alloc_consistent(adapter->dev, MEGA_BUFFER_SIZE, &adapter->buf_dma_handle); if (!adapter->mega_buffer) { - printk(KERN_WARNING "megaraid: out of RAM.\n"); + dev_warn(&pdev->dev, "out of RAM\n"); goto out_host_put; } adapter->scb_list = kmalloc(sizeof(scb_t) * MAX_COMMANDS, GFP_KERNEL); if (!adapter->scb_list) { - printk(KERN_WARNING "megaraid: out of RAM.\n"); + dev_warn(&pdev->dev, "out of RAM\n"); goto out_free_cmd_buffer; } if (request_irq(irq, (adapter->flag & BOARD_MEMMAP) ? megaraid_isr_memmapped : megaraid_isr_iomapped, IRQF_SHARED, "megaraid", adapter)) { - printk(KERN_WARNING - "megaraid: Couldn't register IRQ %d!\n", irq); + dev_warn(&pdev->dev, "Couldn't register IRQ %d!\n", irq); goto out_free_scb_list; } @@ -4357,9 +4349,9 @@ megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) if (!strcmp(adapter->fw_version, "3.00") || !strcmp(adapter->fw_version, "3.01")) { - printk( KERN_WARNING - "megaraid: Your card is a Dell PERC " - "2/SC RAID controller with " + dev_warn(&pdev->dev, + "Your card is a Dell PERC " + "2/SC RAID controller with " "firmware\nmegaraid: 3.00 or 3.01. " "This driver is known to have " "corruption issues\nmegaraid: with " @@ -4390,12 +4382,12 @@ megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) if (!strcmp(adapter->fw_version, "H01.07") || !strcmp(adapter->fw_version, "H01.08") || !strcmp(adapter->fw_version, "H01.09") ) { - printk(KERN_WARNING - "megaraid: Firmware H.01.07, " + dev_warn(&pdev->dev, + "Firmware H.01.07, " "H.01.08, and H.01.09 on 1M/2M " "controllers\n" - "megaraid: do not support 64 bit " - "addressing.\nmegaraid: DISABLING " + "do not support 64 bit " + "addressing.\nDISABLING " "64 bit support.\n"); adapter->flag &= ~BOARD_64BIT; } @@ -4503,8 +4495,8 @@ megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) */ adapter->has_cluster = mega_support_cluster(adapter); if (adapter->has_cluster) { - printk(KERN_NOTICE - "megaraid: Cluster driver, initiator id:%d\n", + dev_notice(&pdev->dev, + "Cluster driver, initiator id:%d\n", adapter->this_id); } #endif @@ -4571,7 +4563,7 @@ __megaraid_shutdown(adapter_t *adapter) issue_scb_block(adapter, raw_mbox); if (atomic_read(&adapter->pend_cmds) > 0) - printk(KERN_WARNING "megaraid: pending commands!!\n"); + dev_warn(&adapter->dev->dev, "pending commands!!\n"); /* * Have a delibrate delay to make sure all the caches are diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index 71b884dae27c..eaa81e552fd2 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -216,7 +216,7 @@ struct megasas_cmd *megasas_get_cmd(struct megasas_instance struct megasas_cmd, list); list_del_init(&cmd->list); } else { - printk(KERN_ERR "megasas: Command pool empty!\n"); + dev_err(&instance->pdev->dev, "Command pool empty!\n"); } spin_unlock_irqrestore(&instance->mfi_pool_lock, flags); @@ -273,6 +273,7 @@ static inline void megasas_enable_intr_xscale(struct megasas_instance *instance) { struct megasas_register_set __iomem *regs; + regs = instance->reg_set; writel(0, &(regs)->outbound_intr_mask); @@ -289,6 +290,7 @@ megasas_disable_intr_xscale(struct megasas_instance *instance) { struct megasas_register_set __iomem *regs; u32 mask = 0x1f; + regs = instance->reg_set; writel(mask, ®s->outbound_intr_mask); /* Dummy readl to force pci flush */ @@ -313,6 +315,7 @@ megasas_clear_intr_xscale(struct megasas_register_set __iomem * regs) { u32 status; u32 mfiStatus = 0; + /* * Check if it is our interrupt */ @@ -348,6 +351,7 @@ megasas_fire_cmd_xscale(struct megasas_instance *instance, struct megasas_register_set __iomem *regs) { unsigned long flags; + spin_lock_irqsave(&instance->hba_lock, flags); writel((frame_phys_addr >> 3)|(frame_count), &(regs)->inbound_queue_port); @@ -364,15 +368,16 @@ megasas_adp_reset_xscale(struct megasas_instance *instance, { u32 i; u32 pcidata; + writel(MFI_ADP_RESET, ®s->inbound_doorbell); for (i = 0; i < 3; i++) msleep(1000); /* sleep for 3 secs */ pcidata = 0; pci_read_config_dword(instance->pdev, MFI_1068_PCSR_OFFSET, &pcidata); - printk(KERN_NOTICE "pcidata = %x\n", pcidata); + dev_notice(&instance->pdev->dev, "pcidata = %x\n", pcidata); if (pcidata & 0x2) { - printk(KERN_NOTICE "mfi 1068 offset read=%x\n", pcidata); + dev_notice(&instance->pdev->dev, "mfi 1068 offset read=%x\n", pcidata); pcidata &= ~0x2; pci_write_config_dword(instance->pdev, MFI_1068_PCSR_OFFSET, pcidata); @@ -383,9 +388,9 @@ megasas_adp_reset_xscale(struct megasas_instance *instance, pcidata = 0; pci_read_config_dword(instance->pdev, MFI_1068_FW_HANDSHAKE_OFFSET, &pcidata); - printk(KERN_NOTICE "1068 offset handshake read=%x\n", pcidata); + dev_notice(&instance->pdev->dev, "1068 offset handshake read=%x\n", pcidata); if ((pcidata & 0xffff0000) == MFI_1068_FW_READY) { - printk(KERN_NOTICE "1068 offset pcidt=%x\n", pcidata); + dev_notice(&instance->pdev->dev, "1068 offset pcidt=%x\n", pcidata); pcidata = 0; pci_write_config_dword(instance->pdev, MFI_1068_FW_HANDSHAKE_OFFSET, pcidata); @@ -402,7 +407,6 @@ static int megasas_check_reset_xscale(struct megasas_instance *instance, struct megasas_register_set __iomem *regs) { - if ((instance->adprecovery != MEGASAS_HBA_OPERATIONAL) && (le32_to_cpu(*instance->consumer) == MEGASAS_ADPRESET_INPROG_SIGN)) @@ -433,7 +437,7 @@ static struct megasas_instance_template megasas_instance_template_xscale = { /** * The following functions are defined for ppc (deviceid : 0x60) -* controllers +* controllers */ /** @@ -444,6 +448,7 @@ static inline void megasas_enable_intr_ppc(struct megasas_instance *instance) { struct megasas_register_set __iomem *regs; + regs = instance->reg_set; writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear); @@ -462,6 +467,7 @@ megasas_disable_intr_ppc(struct megasas_instance *instance) { struct megasas_register_set __iomem *regs; u32 mask = 0xFFFFFFFF; + regs = instance->reg_set; writel(mask, ®s->outbound_intr_mask); /* Dummy readl to force pci flush */ @@ -522,6 +528,7 @@ megasas_fire_cmd_ppc(struct megasas_instance *instance, struct megasas_register_set __iomem *regs) { unsigned long flags; + spin_lock_irqsave(&instance->hba_lock, flags); writel((frame_phys_addr | (frame_count<<1))|1, &(regs)->inbound_queue_port); @@ -566,6 +573,7 @@ static inline void megasas_enable_intr_skinny(struct megasas_instance *instance) { struct megasas_register_set __iomem *regs; + regs = instance->reg_set; writel(0xFFFFFFFF, &(regs)->outbound_intr_mask); @@ -584,6 +592,7 @@ megasas_disable_intr_skinny(struct megasas_instance *instance) { struct megasas_register_set __iomem *regs; u32 mask = 0xFFFFFFFF; + regs = instance->reg_set; writel(mask, ®s->outbound_intr_mask); /* Dummy readl to force pci flush */ @@ -634,8 +643,8 @@ megasas_clear_intr_skinny(struct megasas_register_set __iomem *regs) writel(status, ®s->outbound_intr_status); /* - * dummy read to flush PCI - */ + * dummy read to flush PCI + */ readl(®s->outbound_intr_status); return mfiStatus; @@ -654,6 +663,7 @@ megasas_fire_cmd_skinny(struct megasas_instance *instance, struct megasas_register_set __iomem *regs) { unsigned long flags; + spin_lock_irqsave(&instance->hba_lock, flags); writel(upper_32_bits(frame_phys_addr), &(regs)->inbound_high_queue_port); @@ -706,6 +716,7 @@ static inline void megasas_enable_intr_gen2(struct megasas_instance *instance) { struct megasas_register_set __iomem *regs; + regs = instance->reg_set; writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear); @@ -725,6 +736,7 @@ megasas_disable_intr_gen2(struct megasas_instance *instance) { struct megasas_register_set __iomem *regs; u32 mask = 0xFFFFFFFF; + regs = instance->reg_set; writel(mask, ®s->outbound_intr_mask); /* Dummy readl to force pci flush */ @@ -750,6 +762,7 @@ megasas_clear_intr_gen2(struct megasas_register_set __iomem *regs) { u32 status; u32 mfiStatus = 0; + /* * Check if it is our interrupt */ @@ -786,6 +799,7 @@ megasas_fire_cmd_gen2(struct megasas_instance *instance, struct megasas_register_set __iomem *regs) { unsigned long flags; + spin_lock_irqsave(&instance->hba_lock, flags); writel((frame_phys_addr | (frame_count<<1))|1, &(regs)->inbound_queue_port); @@ -800,10 +814,10 @@ static int megasas_adp_reset_gen2(struct megasas_instance *instance, struct megasas_register_set __iomem *reg_set) { - u32 retry = 0 ; - u32 HostDiag; - u32 __iomem *seq_offset = ®_set->seq_offset; - u32 __iomem *hostdiag_offset = ®_set->host_diag; + u32 retry = 0 ; + u32 HostDiag; + u32 __iomem *seq_offset = ®_set->seq_offset; + u32 __iomem *hostdiag_offset = ®_set->host_diag; if (instance->instancet == &megasas_instance_template_skinny) { seq_offset = ®_set->fusion_seq_offset; @@ -821,10 +835,10 @@ megasas_adp_reset_gen2(struct megasas_instance *instance, HostDiag = (u32)readl(hostdiag_offset); - while ( !( HostDiag & DIAG_WRITE_ENABLE) ) { + while (!(HostDiag & DIAG_WRITE_ENABLE)) { msleep(100); HostDiag = (u32)readl(hostdiag_offset); - printk(KERN_NOTICE "RESETGEN2: retry=%x, hostdiag=%x\n", + dev_notice(&instance->pdev->dev, "RESETGEN2: retry=%x, hostdiag=%x\n", retry, HostDiag); if (retry++ >= 100) @@ -832,17 +846,17 @@ megasas_adp_reset_gen2(struct megasas_instance *instance, } - printk(KERN_NOTICE "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag); + dev_notice(&instance->pdev->dev, "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag); writel((HostDiag | DIAG_RESET_ADAPTER), hostdiag_offset); ssleep(10); HostDiag = (u32)readl(hostdiag_offset); - while ( ( HostDiag & DIAG_RESET_ADAPTER) ) { + while (HostDiag & DIAG_RESET_ADAPTER) { msleep(100); HostDiag = (u32)readl(hostdiag_offset); - printk(KERN_NOTICE "RESET_GEN2: retry=%x, hostdiag=%x\n", + dev_notice(&instance->pdev->dev, "RESET_GEN2: retry=%x, hostdiag=%x\n", retry, HostDiag); if (retry++ >= 1000) @@ -904,7 +918,6 @@ int megasas_issue_polled(struct megasas_instance *instance, struct megasas_cmd *cmd) { int seconds; - struct megasas_header *frame_hdr = &cmd->frame->hdr; frame_hdr->cmd_status = MFI_CMD_STATUS_POLL_MODE; @@ -940,6 +953,7 @@ megasas_issue_blocked_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, int timeout) { int ret = 0; + cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS; instance->instancet->issue_dcmd(instance, cmd); @@ -1120,7 +1134,7 @@ static u32 megasas_get_frame_count(struct megasas_instance *instance, int num_cnt; int sge_bytes; u32 sge_sz; - u32 frame_count=0; + u32 frame_count = 0; sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) : sizeof(struct megasas_sge32); @@ -1151,14 +1165,14 @@ static u32 megasas_get_frame_count(struct megasas_instance *instance, num_cnt = sge_count - 3; } - if(num_cnt>0){ + if (num_cnt > 0) { sge_bytes = sge_sz * num_cnt; frame_count = (sge_bytes / MEGAMFI_FRAME_SIZE) + ((sge_bytes % MEGAMFI_FRAME_SIZE) ? 1 : 0) ; } /* Main frame */ - frame_count +=1; + frame_count += 1; if (frame_count > 7) frame_count = 8; @@ -1215,9 +1229,9 @@ megasas_build_dcdb(struct megasas_instance *instance, struct scsi_cmnd *scp, memcpy(pthru->cdb, scp->cmnd, scp->cmd_len); /* - * If the command is for the tape device, set the - * pthru timeout to the os layer timeout value. - */ + * If the command is for the tape device, set the + * pthru timeout to the os layer timeout value. + */ if (scp->device->type == TYPE_TAPE) { if ((scp->request->timeout / HZ) > 0xFFFF) pthru->timeout = cpu_to_le16(0xFFFF); @@ -1241,7 +1255,7 @@ megasas_build_dcdb(struct megasas_instance *instance, struct scsi_cmnd *scp, &pthru->sgl); if (pthru->sge_count > instance->max_num_sge) { - printk(KERN_ERR "megasas: DCDB two many SGE NUM=%x\n", + dev_err(&instance->pdev->dev, "DCDB too many SGE NUM=%x\n", pthru->sge_count); return 0; } @@ -1382,7 +1396,7 @@ megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp, ldio->sge_count = megasas_make_sgl32(instance, scp, &ldio->sgl); if (ldio->sge_count > instance->max_num_sge) { - printk(KERN_ERR "megasas: build_ld_io: sge_count = %x\n", + dev_err(&instance->pdev->dev, "build_ld_io: sge_count = %x\n", ldio->sge_count); return 0; } @@ -1435,7 +1449,7 @@ inline int megasas_cmd_type(struct scsi_cmnd *cmd) /** * megasas_dump_pending_frames - Dumps the frame address of all pending cmds - * in FW + * in FW * @instance: Adapter soft state */ static inline void @@ -1449,63 +1463,60 @@ megasas_dump_pending_frames(struct megasas_instance *instance) u32 sgcount; u32 max_cmd = instance->max_fw_cmds; - printk(KERN_ERR "\nmegasas[%d]: Dumping Frame Phys Address of all pending cmds in FW\n",instance->host->host_no); - printk(KERN_ERR "megasas[%d]: Total OS Pending cmds : %d\n",instance->host->host_no,atomic_read(&instance->fw_outstanding)); + dev_err(&instance->pdev->dev, "[%d]: Dumping Frame Phys Address of all pending cmds in FW\n",instance->host->host_no); + dev_err(&instance->pdev->dev, "[%d]: Total OS Pending cmds : %d\n",instance->host->host_no,atomic_read(&instance->fw_outstanding)); if (IS_DMA64) - printk(KERN_ERR "\nmegasas[%d]: 64 bit SGLs were sent to FW\n",instance->host->host_no); + dev_err(&instance->pdev->dev, "[%d]: 64 bit SGLs were sent to FW\n",instance->host->host_no); else - printk(KERN_ERR "\nmegasas[%d]: 32 bit SGLs were sent to FW\n",instance->host->host_no); + dev_err(&instance->pdev->dev, "[%d]: 32 bit SGLs were sent to FW\n",instance->host->host_no); - printk(KERN_ERR "megasas[%d]: Pending OS cmds in FW : \n",instance->host->host_no); + dev_err(&instance->pdev->dev, "[%d]: Pending OS cmds in FW : \n",instance->host->host_no); for (i = 0; i < max_cmd; i++) { cmd = instance->cmd_list[i]; - if(!cmd->scmd) + if (!cmd->scmd) continue; - printk(KERN_ERR "megasas[%d]: Frame addr :0x%08lx : ",instance->host->host_no,(unsigned long)cmd->frame_phys_addr); + dev_err(&instance->pdev->dev, "[%d]: Frame addr :0x%08lx : ",instance->host->host_no,(unsigned long)cmd->frame_phys_addr); if (megasas_cmd_type(cmd->scmd) == READ_WRITE_LDIO) { ldio = (struct megasas_io_frame *)cmd->frame; mfi_sgl = &ldio->sgl; sgcount = ldio->sge_count; - printk(KERN_ERR "megasas[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x," + dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x," " lba lo : 0x%x, lba_hi : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n", instance->host->host_no, cmd->frame_count, ldio->cmd, ldio->target_id, le32_to_cpu(ldio->start_lba_lo), le32_to_cpu(ldio->start_lba_hi), le32_to_cpu(ldio->sense_buf_phys_addr_lo), sgcount); - } - else { + } else { pthru = (struct megasas_pthru_frame *) cmd->frame; mfi_sgl = &pthru->sgl; sgcount = pthru->sge_count; - printk(KERN_ERR "megasas[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x, " + dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x, " "lun : 0x%x, cdb_len : 0x%x, data xfer len : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n", instance->host->host_no, cmd->frame_count, pthru->cmd, pthru->target_id, pthru->lun, pthru->cdb_len, le32_to_cpu(pthru->data_xfer_len), le32_to_cpu(pthru->sense_buf_phys_addr_lo), sgcount); } - if(megasas_dbg_lvl & MEGASAS_DBG_LVL){ - for (n = 0; n < sgcount; n++){ - if (IS_DMA64) - printk(KERN_ERR "megasas: sgl len : 0x%x, sgl addr : 0x%llx ", - le32_to_cpu(mfi_sgl->sge64[n].length), - le64_to_cpu(mfi_sgl->sge64[n].phys_addr)); - else - printk(KERN_ERR "megasas: sgl len : 0x%x, sgl addr : 0x%x ", - le32_to_cpu(mfi_sgl->sge32[n].length), - le32_to_cpu(mfi_sgl->sge32[n].phys_addr)); + if (megasas_dbg_lvl & MEGASAS_DBG_LVL) { + for (n = 0; n < sgcount; n++) { + if (IS_DMA64) + dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%llx\n", + le32_to_cpu(mfi_sgl->sge64[n].length), + le64_to_cpu(mfi_sgl->sge64[n].phys_addr)); + else + dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%x\n", + le32_to_cpu(mfi_sgl->sge32[n].length), + le32_to_cpu(mfi_sgl->sge32[n].phys_addr)); } } - printk(KERN_ERR "\n"); } /*for max_cmd*/ - printk(KERN_ERR "\nmegasas[%d]: Pending Internal cmds in FW : \n",instance->host->host_no); + dev_err(&instance->pdev->dev, "[%d]: Pending Internal cmds in FW : \n",instance->host->host_no); for (i = 0; i < max_cmd; i++) { cmd = instance->cmd_list[i]; - if(cmd->sync_cmd == 1){ - printk(KERN_ERR "0x%08lx : ", (unsigned long)cmd->frame_phys_addr); - } + if (cmd->sync_cmd == 1) + dev_err(&instance->pdev->dev, "0x%08lx : ", (unsigned long)cmd->frame_phys_addr); } - printk(KERN_ERR "megasas[%d]: Dumping Done.\n\n",instance->host->host_no); + dev_err(&instance->pdev->dev, "[%d]: Dumping Done\n\n",instance->host->host_no); } u32 @@ -1623,7 +1634,7 @@ megasas_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd) } if (instance->instancet->build_and_issue_cmd(instance, scmd)) { - printk(KERN_ERR "megasas: Err returned from build_and_issue_cmd\n"); + dev_err(&instance->pdev->dev, "Err returned from build_and_issue_cmd\n"); return SCSI_MLQUEUE_HOST_BUSY; } @@ -1651,8 +1662,8 @@ static struct megasas_instance *megasas_lookup_instance(u16 host_no) static int megasas_slave_configure(struct scsi_device *sdev) { /* - * The RAID firmware may require extended timeouts. - */ + * The RAID firmware may require extended timeouts. + */ blk_queue_rq_timeout(sdev->request_queue, MEGASAS_DEFAULT_CMD_TIMEOUT * HZ); @@ -1661,8 +1672,9 @@ static int megasas_slave_configure(struct scsi_device *sdev) static int megasas_slave_alloc(struct scsi_device *sdev) { - u16 pd_index = 0; + u16 pd_index = 0; struct megasas_instance *instance ; + instance = megasas_lookup_instance(sdev->host->host_no); if (sdev->channel < MEGASAS_MAX_PD_CHANNELS) { /* @@ -1728,8 +1740,7 @@ void megaraid_sas_kill_hba(struct megasas_instance *instance) (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA) || (instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) || (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY)) { - writel(MFI_STOP_ADP, - &instance->reg_set->doorbell); + writel(MFI_STOP_ADP, &instance->reg_set->doorbell); /* Flush */ readl(&instance->reg_set->doorbell); if (instance->mpio && instance->requestorId) @@ -1783,7 +1794,7 @@ static void megasas_complete_cmd_dpc(unsigned long instance_addr) unsigned long flags; /* If we have already declared adapter dead, donot complete cmds */ - if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR ) + if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) return; spin_lock_irqsave(&instance->completion_lock, flags); @@ -1794,7 +1805,7 @@ static void megasas_complete_cmd_dpc(unsigned long instance_addr) while (consumer != producer) { context = le32_to_cpu(instance->reply_queue[consumer]); if (context >= instance->max_fw_cmds) { - printk(KERN_ERR "Unexpected context value %x\n", + dev_err(&instance->pdev->dev, "Unexpected context value %x\n", context); BUG(); } @@ -1873,8 +1884,8 @@ static int megasas_get_ld_vf_affiliation_111(struct megasas_instance *instance, cmd = megasas_get_cmd(instance); if (!cmd) { - printk(KERN_DEBUG "megasas: megasas_get_ld_vf_affiliation_111:" - "Failed to get cmd for scsi%d.\n", + dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation_111:" + "Failed to get cmd for scsi%d\n", instance->host->host_no); return -ENOMEM; } @@ -1882,8 +1893,8 @@ static int megasas_get_ld_vf_affiliation_111(struct megasas_instance *instance, dcmd = &cmd->frame->dcmd; if (!instance->vf_affiliation_111) { - printk(KERN_WARNING "megasas: SR-IOV: Couldn't get LD/VF " - "affiliation for scsi%d.\n", instance->host->host_no); + dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF " + "affiliation for scsi%d\n", instance->host->host_no); megasas_return_cmd(instance, cmd); return -ENOMEM; } @@ -1897,8 +1908,8 @@ static int megasas_get_ld_vf_affiliation_111(struct megasas_instance *instance, sizeof(struct MR_LD_VF_AFFILIATION_111), &new_affiliation_111_h); if (!new_affiliation_111) { - printk(KERN_DEBUG "megasas: SR-IOV: Couldn't allocate " - "memory for new affiliation for scsi%d.\n", + dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate " + "memory for new affiliation for scsi%d\n", instance->host->host_no); megasas_return_cmd(instance, cmd); return -ENOMEM; @@ -1929,14 +1940,14 @@ static int megasas_get_ld_vf_affiliation_111(struct megasas_instance *instance, dcmd->sgl.sge32[0].length = cpu_to_le32( sizeof(struct MR_LD_VF_AFFILIATION_111)); - printk(KERN_WARNING "megasas: SR-IOV: Getting LD/VF affiliation for " + dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for " "scsi%d\n", instance->host->host_no); megasas_issue_blocked_cmd(instance, cmd, 0); if (dcmd->cmd_status) { - printk(KERN_WARNING "megasas: SR-IOV: LD/VF affiliation DCMD" - " failed with status 0x%x for scsi%d.\n", + dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD" + " failed with status 0x%x for scsi%d\n", dcmd->cmd_status, instance->host->host_no); retval = 1; /* Do a scan if we couldn't get affiliation */ goto out; @@ -1947,9 +1958,8 @@ static int megasas_get_ld_vf_affiliation_111(struct megasas_instance *instance, for (ld = 0 ; ld < new_affiliation_111->vdCount; ld++) if (instance->vf_affiliation_111->map[ld].policy[thisVf] != new_affiliation_111->map[ld].policy[thisVf]) { - printk(KERN_WARNING "megasas: SR-IOV: " - "Got new LD/VF affiliation " - "for scsi%d.\n", + dev_warn(&instance->pdev->dev, "SR-IOV: " + "Got new LD/VF affiliation for scsi%d\n", instance->host->host_no); memcpy(instance->vf_affiliation_111, new_affiliation_111, @@ -1985,8 +1995,8 @@ static int megasas_get_ld_vf_affiliation_12(struct megasas_instance *instance, cmd = megasas_get_cmd(instance); if (!cmd) { - printk(KERN_DEBUG "megasas: megasas_get_ld_vf_affiliation12: " - "Failed to get cmd for scsi%d.\n", + dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation12: " + "Failed to get cmd for scsi%d\n", instance->host->host_no); return -ENOMEM; } @@ -1994,8 +2004,8 @@ static int megasas_get_ld_vf_affiliation_12(struct megasas_instance *instance, dcmd = &cmd->frame->dcmd; if (!instance->vf_affiliation) { - printk(KERN_WARNING "megasas: SR-IOV: Couldn't get LD/VF " - "affiliation for scsi%d.\n", instance->host->host_no); + dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF " + "affiliation for scsi%d\n", instance->host->host_no); megasas_return_cmd(instance, cmd); return -ENOMEM; } @@ -2010,8 +2020,8 @@ static int megasas_get_ld_vf_affiliation_12(struct megasas_instance *instance, sizeof(struct MR_LD_VF_AFFILIATION), &new_affiliation_h); if (!new_affiliation) { - printk(KERN_DEBUG "megasas: SR-IOV: Couldn't allocate " - "memory for new affiliation for scsi%d.\n", + dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate " + "memory for new affiliation for scsi%d\n", instance->host->host_no); megasas_return_cmd(instance, cmd); return -ENOMEM; @@ -2042,14 +2052,14 @@ static int megasas_get_ld_vf_affiliation_12(struct megasas_instance *instance, dcmd->sgl.sge32[0].length = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) * sizeof(struct MR_LD_VF_AFFILIATION)); - printk(KERN_WARNING "megasas: SR-IOV: Getting LD/VF affiliation for " + dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for " "scsi%d\n", instance->host->host_no); megasas_issue_blocked_cmd(instance, cmd, 0); if (dcmd->cmd_status) { - printk(KERN_WARNING "megasas: SR-IOV: LD/VF affiliation DCMD" - " failed with status 0x%x for scsi%d.\n", + dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD" + " failed with status 0x%x for scsi%d\n", dcmd->cmd_status, instance->host->host_no); retval = 1; /* Do a scan if we couldn't get affiliation */ goto out; @@ -2057,8 +2067,8 @@ static int megasas_get_ld_vf_affiliation_12(struct megasas_instance *instance, if (!initial) { if (!new_affiliation->ldCount) { - printk(KERN_WARNING "megasas: SR-IOV: Got new LD/VF " - "affiliation for passive path for scsi%d.\n", + dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF " + "affiliation for passive path for scsi%d\n", instance->host->host_no); retval = 1; goto out; @@ -2123,8 +2133,8 @@ static int megasas_get_ld_vf_affiliation_12(struct megasas_instance *instance, } out: if (doscan) { - printk(KERN_WARNING "megasas: SR-IOV: Got new LD/VF " - "affiliation for scsi%d.\n", instance->host->host_no); + dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF " + "affiliation for scsi%d\n", instance->host->host_no); memcpy(instance->vf_affiliation, new_affiliation, new_affiliation->size); retval = 1; @@ -2164,8 +2174,8 @@ int megasas_sriov_start_heartbeat(struct megasas_instance *instance, cmd = megasas_get_cmd(instance); if (!cmd) { - printk(KERN_DEBUG "megasas: megasas_sriov_start_heartbeat: " - "Failed to get cmd for scsi%d.\n", + dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_sriov_start_heartbeat: " + "Failed to get cmd for scsi%d\n", instance->host->host_no); return -ENOMEM; } @@ -2178,9 +2188,9 @@ int megasas_sriov_start_heartbeat(struct megasas_instance *instance, sizeof(struct MR_CTRL_HB_HOST_MEM), &instance->hb_host_mem_h); if (!instance->hb_host_mem) { - printk(KERN_DEBUG "megasas: SR-IOV: Couldn't allocate" - " memory for heartbeat host memory for " - "scsi%d.\n", instance->host->host_no); + dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate" + " memory for heartbeat host memory for scsi%d\n", + instance->host->host_no); retval = -ENOMEM; goto out; } @@ -2200,7 +2210,7 @@ int megasas_sriov_start_heartbeat(struct megasas_instance *instance, dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(instance->hb_host_mem_h); dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM)); - printk(KERN_WARNING "megasas: SR-IOV: Starting heartbeat for scsi%d\n", + dev_warn(&instance->pdev->dev, "SR-IOV: Starting heartbeat for scsi%d\n", instance->host->host_no); if (instance->ctrl_context && !instance->mask_interrupts) @@ -2236,7 +2246,7 @@ void megasas_sriov_heartbeat_handler(unsigned long instance_addr) mod_timer(&instance->sriov_heartbeat_timer, jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF); } else { - printk(KERN_WARNING "megasas: SR-IOV: Heartbeat never " + dev_warn(&instance->pdev->dev, "SR-IOV: Heartbeat never " "completed for scsi%d\n", instance->host->host_no); schedule_work(&instance->work_init); } @@ -2274,7 +2284,7 @@ static int megasas_wait_for_outstanding(struct megasas_instance *instance) &clist_local); spin_unlock_irqrestore(&instance->hba_lock, flags); - printk(KERN_NOTICE "megasas: HBA reset wait ...\n"); + dev_notice(&instance->pdev->dev, "HBA reset wait ...\n"); for (i = 0; i < wait_time; i++) { msleep(1000); spin_lock_irqsave(&instance->hba_lock, flags); @@ -2285,28 +2295,28 @@ static int megasas_wait_for_outstanding(struct megasas_instance *instance) } if (adprecovery != MEGASAS_HBA_OPERATIONAL) { - printk(KERN_NOTICE "megasas: reset: Stopping HBA.\n"); + dev_notice(&instance->pdev->dev, "reset: Stopping HBA.\n"); spin_lock_irqsave(&instance->hba_lock, flags); - instance->adprecovery = MEGASAS_HW_CRITICAL_ERROR; + instance->adprecovery = MEGASAS_HW_CRITICAL_ERROR; spin_unlock_irqrestore(&instance->hba_lock, flags); return FAILED; } - reset_index = 0; + reset_index = 0; while (!list_empty(&clist_local)) { - reset_cmd = list_entry((&clist_local)->next, + reset_cmd = list_entry((&clist_local)->next, struct megasas_cmd, list); list_del_init(&reset_cmd->list); if (reset_cmd->scmd) { reset_cmd->scmd->result = DID_RESET << 16; - printk(KERN_NOTICE "%d:%p reset [%02x]\n", + dev_notice(&instance->pdev->dev, "%d:%p reset [%02x]\n", reset_index, reset_cmd, reset_cmd->scmd->cmnd[0]); reset_cmd->scmd->scsi_done(reset_cmd->scmd); megasas_return_cmd(instance, reset_cmd); } else if (reset_cmd->sync_cmd) { - printk(KERN_NOTICE "megasas:%p synch cmds" + dev_notice(&instance->pdev->dev, "%p synch cmds" "reset queue\n", reset_cmd); @@ -2315,7 +2325,7 @@ static int megasas_wait_for_outstanding(struct megasas_instance *instance) reset_cmd->frame_phys_addr, 0, instance->reg_set); } else { - printk(KERN_NOTICE "megasas: %p unexpected" + dev_notice(&instance->pdev->dev, "%p unexpected" "cmds lst\n", reset_cmd); } @@ -2326,14 +2336,13 @@ static int megasas_wait_for_outstanding(struct megasas_instance *instance) } for (i = 0; i < resetwaittime; i++) { - int outstanding = atomic_read(&instance->fw_outstanding); if (!outstanding) break; if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) { - printk(KERN_NOTICE "megasas: [%2d]waiting for %d " + dev_notice(&instance->pdev->dev, "[%2d]waiting for %d " "commands to complete\n",i,outstanding); /* * Call cmd completion routine. Cmd to be @@ -2365,10 +2374,8 @@ static int megasas_wait_for_outstanding(struct megasas_instance *instance) i++; } while (i <= 3); - if (atomic_read(&instance->fw_outstanding) && - !kill_adapter_flag) { + if (atomic_read(&instance->fw_outstanding) && !kill_adapter_flag) { if (instance->disableOnlineCtrlReset == 0) { - megasas_do_ocr(instance); /* wait for 5 secs to let FW finish the pending cmds */ @@ -2384,11 +2391,11 @@ static int megasas_wait_for_outstanding(struct megasas_instance *instance) if (atomic_read(&instance->fw_outstanding) || (kill_adapter_flag == 2)) { - printk(KERN_NOTICE "megaraid_sas: pending cmds after reset\n"); + dev_notice(&instance->pdev->dev, "pending cmds after reset\n"); /* - * Send signal to FW to stop processing any pending cmds. - * The controller will be taken offline by the OS now. - */ + * Send signal to FW to stop processing any pending cmds. + * The controller will be taken offline by the OS now. + */ if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || (instance->pdev->device == @@ -2401,12 +2408,12 @@ static int megasas_wait_for_outstanding(struct megasas_instance *instance) } megasas_dump_pending_frames(instance); spin_lock_irqsave(&instance->hba_lock, flags); - instance->adprecovery = MEGASAS_HW_CRITICAL_ERROR; + instance->adprecovery = MEGASAS_HW_CRITICAL_ERROR; spin_unlock_irqrestore(&instance->hba_lock, flags); return FAILED; } - printk(KERN_NOTICE "megaraid_sas: no pending cmds after reset\n"); + dev_notice(&instance->pdev->dev, "no pending cmds after reset\n"); return SUCCESS; } @@ -2430,16 +2437,15 @@ static int megasas_generic_reset(struct scsi_cmnd *scmd) scmd->cmnd[0], scmd->retries); if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) { - printk(KERN_ERR "megasas: cannot recover from previous reset " - "failures\n"); + dev_err(&instance->pdev->dev, "cannot recover from previous reset failures\n"); return FAILED; } ret_val = megasas_wait_for_outstanding(instance); if (ret_val == SUCCESS) - printk(KERN_NOTICE "megasas: reset successful \n"); + dev_notice(&instance->pdev->dev, "reset successful\n"); else - printk(KERN_ERR "megasas: failed to do reset\n"); + dev_err(&instance->pdev->dev, "failed to do reset\n"); return ret_val; } @@ -2481,14 +2487,10 @@ blk_eh_timer_return megasas_reset_timer(struct scsi_cmnd *scmd) */ static int megasas_reset_device(struct scsi_cmnd *scmd) { - int ret; - /* * First wait for all commands to complete */ - ret = megasas_generic_reset(scmd); - - return ret; + return megasas_generic_reset(scmd); } /** @@ -2498,6 +2500,7 @@ static int megasas_reset_bus_host(struct scsi_cmnd *scmd) { int ret; struct megasas_instance *instance; + instance = (struct megasas_instance *)scmd->device->host->hostdata; /* @@ -2516,7 +2519,7 @@ static int megasas_reset_bus_host(struct scsi_cmnd *scmd) /** * megasas_bios_param - Returns disk geometry for a disk - * @sdev: device handle + * @sdev: device handle * @bdev: block device * @capacity: drive capacity * @geom: geometry parameters @@ -2529,6 +2532,7 @@ megasas_bios_param(struct scsi_device *sdev, struct block_device *bdev, int sectors; sector_t cylinders; unsigned long tmp; + /* Default heads (64) & sectors (32) */ heads = 64; sectors = 32; @@ -2575,6 +2579,7 @@ static void megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd) { unsigned long flags; + /* * Don't signal app if it is just an aborted previously registered aen */ @@ -2595,9 +2600,10 @@ megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd) if ((instance->unload == 0) && ((instance->issuepend_done == 1))) { struct megasas_aen_event *ev; + ev = kzalloc(sizeof(*ev), GFP_ATOMIC); if (!ev) { - printk(KERN_ERR "megasas_service_aen: out of memory\n"); + dev_err(&instance->pdev->dev, "megasas_service_aen: out of memory\n"); } else { ev->instance = instance; instance->ev = ev; @@ -2654,8 +2660,7 @@ megasas_fw_crash_buffer_show(struct device *cdev, buff_addr = (unsigned long) buf; - if (buff_offset > - (instance->fw_crash_buffer_size * dmachunk)) { + if (buff_offset > (instance->fw_crash_buffer_size * dmachunk)) { dev_err(&instance->pdev->dev, "Firmware crash dump offset is out of range\n"); spin_unlock_irqrestore(&instance->crashdump_lock, flags); @@ -2667,7 +2672,7 @@ megasas_fw_crash_buffer_show(struct device *cdev, src_addr = (unsigned long)instance->crash_buf[buff_offset / dmachunk] + (buff_offset % dmachunk); - memcpy(buf, (void *)src_addr, size); + memcpy(buf, (void *)src_addr, size); spin_unlock_irqrestore(&instance->crashdump_lock, flags); return size; @@ -2727,6 +2732,7 @@ megasas_fw_crash_state_show(struct device *cdev, struct Scsi_Host *shost = class_to_shost(cdev); struct megasas_instance *instance = (struct megasas_instance *) shost->hostdata; + return snprintf(buf, PAGE_SIZE, "%d\n", instance->fw_crash_state); } @@ -2811,8 +2817,6 @@ megasas_complete_abort(struct megasas_instance *instance, cmd->cmd_status_drv = 0; wake_up(&instance->abort_cmd_wait_q); } - - return; } /** @@ -2820,10 +2824,10 @@ megasas_complete_abort(struct megasas_instance *instance, * @instance: Adapter soft state * @cmd: Command to be completed * @alt_status: If non-zero, use this value as status to - * SCSI mid-layer instead of the value returned - * by the FW. This should be used if caller wants - * an alternate status (as in the case of aborted - * commands) + * SCSI mid-layer instead of the value returned + * by the FW. This should be used if caller wants + * an alternate status (as in the case of aborted + * commands) */ void megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, @@ -2847,10 +2851,10 @@ megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, MR_DCMD_CTRL_EVENT_GET_INFO left over from the main kernel when booting the kdump kernel. Ignore this command to prevent a kernel panic on shutdown of the kdump kernel. */ - printk(KERN_WARNING "megaraid_sas: MFI_CMD_INVALID command " - "completed.\n"); - printk(KERN_WARNING "megaraid_sas: If you have a controller " - "other than PERC5, please upgrade your firmware.\n"); + dev_warn(&instance->pdev->dev, "MFI_CMD_INVALID command " + "completed\n"); + dev_warn(&instance->pdev->dev, "If you have a controller " + "other than PERC5, please upgrade your firmware\n"); break; case MFI_CMD_PD_SCSI_IO: case MFI_CMD_LD_SCSI_IO: @@ -2918,7 +2922,7 @@ megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, break; default: - printk(KERN_DEBUG "megasas: MFI FW status %#x\n", + dev_printk(KERN_DEBUG, &instance->pdev->dev, "MFI FW status %#x\n", hdr->cmd_status); cmd->scmd->result = DID_ERROR << 16; break; @@ -2944,8 +2948,7 @@ megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, if (cmd->frame->hdr.cmd_status != 0) { if (cmd->frame->hdr.cmd_status != MFI_STAT_NOT_FOUND) - printk(KERN_WARNING "megasas: map sync" - "failed, status = 0x%x.\n", + dev_warn(&instance->pdev->dev, "map syncfailed, status = 0x%x\n", cmd->frame->hdr.cmd_status); else { megasas_return_cmd(instance, cmd); @@ -2997,7 +3000,7 @@ megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, break; default: - printk("megasas: Unknown command completed! [0x%X]\n", + dev_info(&instance->pdev->dev, "Unknown command completed! [0x%X]\n", hdr->cmd); break; } @@ -3005,7 +3008,7 @@ megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, /** * megasas_issue_pending_cmds_again - issue all pending cmds - * in FW again because of the fw reset + * in FW again because of the fw reset * @instance: Adapter soft state */ static inline void @@ -3023,19 +3026,19 @@ megasas_issue_pending_cmds_again(struct megasas_instance *instance) spin_unlock_irqrestore(&instance->hba_lock, flags); while (!list_empty(&clist_local)) { - cmd = list_entry((&clist_local)->next, + cmd = list_entry((&clist_local)->next, struct megasas_cmd, list); list_del_init(&cmd->list); if (cmd->sync_cmd || cmd->scmd) { - printk(KERN_NOTICE "megaraid_sas: command %p, %p:%d" - "detected to be pending while HBA reset.\n", + dev_notice(&instance->pdev->dev, "command %p, %p:%d" + "detected to be pending while HBA reset\n", cmd, cmd->scmd, cmd->sync_cmd); cmd->retry_for_fw_reset++; if (cmd->retry_for_fw_reset == 3) { - printk(KERN_NOTICE "megaraid_sas: cmd %p, %p:%d" + dev_notice(&instance->pdev->dev, "cmd %p, %p:%d" "was tried multiple times during reset." "Shutting down the HBA\n", cmd, cmd->scmd, cmd->sync_cmd); @@ -3048,18 +3051,18 @@ megasas_issue_pending_cmds_again(struct megasas_instance *instance) if (cmd->sync_cmd == 1) { if (cmd->scmd) { - printk(KERN_NOTICE "megaraid_sas: unexpected" + dev_notice(&instance->pdev->dev, "unexpected" "cmd attached to internal command!\n"); } - printk(KERN_NOTICE "megasas: %p synchronous cmd" + dev_notice(&instance->pdev->dev, "%p synchronous cmd" "on the internal reset queue," "issue it again.\n", cmd); cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS; instance->instancet->fire_cmd(instance, - cmd->frame_phys_addr , + cmd->frame_phys_addr, 0, instance->reg_set); } else if (cmd->scmd) { - printk(KERN_NOTICE "megasas: %p scsi cmd [%02x]" + dev_notice(&instance->pdev->dev, "%p scsi cmd [%02x]" "detected on the internal queue, issue again.\n", cmd, cmd->scmd->cmnd[0]); @@ -3068,22 +3071,22 @@ megasas_issue_pending_cmds_again(struct megasas_instance *instance) cmd->frame_phys_addr, cmd->frame_count-1, instance->reg_set); } else { - printk(KERN_NOTICE "megasas: %p unexpected cmd on the" + dev_notice(&instance->pdev->dev, "%p unexpected cmd on the" "internal reset defer list while re-issue!!\n", cmd); } } if (instance->aen_cmd) { - printk(KERN_NOTICE "megaraid_sas: aen_cmd in def process\n"); + dev_notice(&instance->pdev->dev, "aen_cmd in def process\n"); megasas_return_cmd(instance, instance->aen_cmd); - instance->aen_cmd = NULL; + instance->aen_cmd = NULL; } /* - * Initiate AEN (Asynchronous Event Notification) - */ + * Initiate AEN (Asynchronous Event Notification) + */ seq_num = instance->last_seq_num; class_locale.members.reserved = 0; class_locale.members.locale = MR_EVT_LOCALE_ALL; @@ -3110,17 +3113,17 @@ megasas_internal_reset_defer_cmds(struct megasas_instance *instance) u32 defer_index; unsigned long flags; - defer_index = 0; + defer_index = 0; spin_lock_irqsave(&instance->mfi_pool_lock, flags); for (i = 0; i < max_cmd; i++) { cmd = instance->cmd_list[i]; if (cmd->sync_cmd == 1 || cmd->scmd) { - printk(KERN_NOTICE "megasas: moving cmd[%d]:%p:%d:%p" + dev_notice(&instance->pdev->dev, "moving cmd[%d]:%p:%d:%p" "on the defer queue as internal\n", defer_index, cmd, cmd->sync_cmd, cmd->scmd); if (!list_empty(&cmd->list)) { - printk(KERN_NOTICE "megaraid_sas: ERROR while" + dev_notice(&instance->pdev->dev, "ERROR while" " moving this cmd:%p, %d %p, it was" "discovered on some list?\n", cmd, cmd->sync_cmd, cmd->scmd); @@ -3145,13 +3148,13 @@ process_fw_state_change_wq(struct work_struct *work) unsigned long flags; if (instance->adprecovery != MEGASAS_ADPRESET_SM_INFAULT) { - printk(KERN_NOTICE "megaraid_sas: error, recovery st %x \n", + dev_notice(&instance->pdev->dev, "error, recovery st %x\n", instance->adprecovery); return ; } if (instance->adprecovery == MEGASAS_ADPRESET_SM_INFAULT) { - printk(KERN_NOTICE "megaraid_sas: FW detected to be in fault" + dev_notice(&instance->pdev->dev, "FW detected to be in fault" "state, restarting it...\n"); instance->instancet->disable_intr(instance); @@ -3159,21 +3162,21 @@ process_fw_state_change_wq(struct work_struct *work) atomic_set(&instance->fw_reset_no_pci_access, 1); instance->instancet->adp_reset(instance, instance->reg_set); - atomic_set(&instance->fw_reset_no_pci_access, 0 ); + atomic_set(&instance->fw_reset_no_pci_access, 0); - printk(KERN_NOTICE "megaraid_sas: FW restarted successfully," + dev_notice(&instance->pdev->dev, "FW restarted successfully," "initiating next stage...\n"); - printk(KERN_NOTICE "megaraid_sas: HBA recovery state machine," + dev_notice(&instance->pdev->dev, "HBA recovery state machine," "state 2 starting...\n"); - /*waitting for about 20 second before start the second init*/ + /* waiting for about 20 second before start the second init */ for (wait = 0; wait < 30; wait++) { msleep(1000); } if (megasas_transition_to_ready(instance, 1)) { - printk(KERN_NOTICE "megaraid_sas:adapter not ready\n"); + dev_notice(&instance->pdev->dev, "adapter not ready\n"); atomic_set(&instance->fw_reset_no_pci_access, 1); megaraid_sas_kill_hba(instance); @@ -3200,15 +3203,14 @@ process_fw_state_change_wq(struct work_struct *work) megasas_issue_pending_cmds_again(instance); instance->issuepend_done = 1; } - return ; } /** * megasas_deplete_reply_queue - Processes all completed commands * @instance: Adapter soft state * @alt_status: Alternate status to be returned to - * SCSI mid-layer instead of the status - * returned by the FW + * SCSI mid-layer instead of the status + * returned by the FW * Note: this must be called with hba lock held */ static int @@ -3238,13 +3240,13 @@ megasas_deplete_reply_queue(struct megasas_instance *instance, instance->reg_set) & MFI_STATE_MASK; if (fw_state != MFI_STATE_FAULT) { - printk(KERN_NOTICE "megaraid_sas: fw state:%x\n", + dev_notice(&instance->pdev->dev, "fw state:%x\n", fw_state); } if ((fw_state == MFI_STATE_FAULT) && (instance->disableOnlineCtrlReset == 0)) { - printk(KERN_NOTICE "megaraid_sas: wait adp restart\n"); + dev_notice(&instance->pdev->dev, "wait adp restart\n"); if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) || @@ -3265,14 +3267,14 @@ megasas_deplete_reply_queue(struct megasas_instance *instance, atomic_set(&instance->fw_outstanding, 0); megasas_internal_reset_defer_cmds(instance); - printk(KERN_NOTICE "megasas: fwState=%x, stage:%d\n", + dev_notice(&instance->pdev->dev, "fwState=%x, stage:%d\n", fw_state, instance->adprecovery); schedule_work(&instance->work_init); return IRQ_HANDLED; } else { - printk(KERN_NOTICE "megasas: fwstate:%x, dis_OCR=%x\n", + dev_notice(&instance->pdev->dev, "fwstate:%x, dis_OCR=%x\n", fw_state, instance->disableOnlineCtrlReset); } } @@ -3288,13 +3290,13 @@ static irqreturn_t megasas_isr(int irq, void *devp) struct megasas_irq_context *irq_context = devp; struct megasas_instance *instance = irq_context->instance; unsigned long flags; - irqreturn_t rc; + irqreturn_t rc; if (atomic_read(&instance->fw_reset_no_pci_access)) return IRQ_HANDLED; spin_lock_irqsave(&instance->hba_lock, flags); - rc = megasas_deplete_reply_queue(instance, DID_OK); + rc = megasas_deplete_reply_queue(instance, DID_OK); spin_unlock_irqrestore(&instance->hba_lock, flags); return rc; @@ -3322,7 +3324,7 @@ megasas_transition_to_ready(struct megasas_instance *instance, int ocr) fw_state = abs_state & MFI_STATE_MASK; if (fw_state != MFI_STATE_READY) - printk(KERN_INFO "megasas: Waiting for FW to come to ready" + dev_info(&instance->pdev->dev, "Waiting for FW to come to ready" " state\n"); while (fw_state != MFI_STATE_READY) { @@ -3330,7 +3332,7 @@ megasas_transition_to_ready(struct megasas_instance *instance, int ocr) switch (fw_state) { case MFI_STATE_FAULT: - printk(KERN_DEBUG "megasas: FW in FAULT state!!\n"); + dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW in FAULT state!!\n"); if (ocr) { max_wait = MEGASAS_RESET_WAIT_TIME; cur_state = MFI_STATE_FAULT; @@ -3469,7 +3471,7 @@ megasas_transition_to_ready(struct megasas_instance *instance, int ocr) break; default: - printk(KERN_DEBUG "megasas: Unknown state 0x%x\n", + dev_printk(KERN_DEBUG, &instance->pdev->dev, "Unknown state 0x%x\n", fw_state); return -ENODEV; } @@ -3491,7 +3493,7 @@ megasas_transition_to_ready(struct megasas_instance *instance, int ocr) * Return error if fw_state hasn't changed after max_wait */ if (curr_abs_state == abs_state) { - printk(KERN_DEBUG "FW state [%d] hasn't changed " + dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW state [%d] hasn't changed " "in %d secs\n", fw_state, max_wait); return -ENODEV; } @@ -3499,7 +3501,7 @@ megasas_transition_to_ready(struct megasas_instance *instance, int ocr) abs_state = curr_abs_state; fw_state = curr_abs_state & MFI_STATE_MASK; } - printk(KERN_INFO "megasas: FW now in Ready state\n"); + dev_info(&instance->pdev->dev, "FW now in Ready state\n"); return 0; } @@ -3570,9 +3572,8 @@ static int megasas_create_frame_pool(struct megasas_instance *instance) sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) : sizeof(struct megasas_sge32); - if (instance->flag_ieee) { + if (instance->flag_ieee) sge_sz = sizeof(struct megasas_sge_skinny); - } /* * For MFI controllers. @@ -3594,7 +3595,7 @@ static int megasas_create_frame_pool(struct megasas_instance *instance) instance->pdev, total_sz, 256, 0); if (!instance->frame_dma_pool) { - printk(KERN_DEBUG "megasas: failed to setup frame pool\n"); + dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup frame pool\n"); return -ENOMEM; } @@ -3602,7 +3603,7 @@ static int megasas_create_frame_pool(struct megasas_instance *instance) instance->pdev, 128, 4, 0); if (!instance->sense_dma_pool) { - printk(KERN_DEBUG "megasas: failed to setup sense pool\n"); + dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup sense pool\n"); pci_pool_destroy(instance->frame_dma_pool); instance->frame_dma_pool = NULL; @@ -3630,7 +3631,7 @@ static int megasas_create_frame_pool(struct megasas_instance *instance) * whatever has been allocated */ if (!cmd->frame || !cmd->sense) { - printk(KERN_DEBUG "megasas: pci_pool_alloc failed \n"); + dev_printk(KERN_DEBUG, &instance->pdev->dev, "pci_pool_alloc failed\n"); megasas_teardown_frame_pool(instance); return -ENOMEM; } @@ -3656,6 +3657,7 @@ static int megasas_create_frame_pool(struct megasas_instance *instance) void megasas_free_cmds(struct megasas_instance *instance) { int i; + /* First free the MFI frame pool */ megasas_teardown_frame_pool(instance); @@ -3708,7 +3710,7 @@ int megasas_alloc_cmds(struct megasas_instance *instance) instance->cmd_list = kcalloc(max_cmd, sizeof(struct megasas_cmd*), GFP_KERNEL); if (!instance->cmd_list) { - printk(KERN_DEBUG "megasas: out of memory\n"); + dev_printk(KERN_DEBUG, &instance->pdev->dev, "out of memory\n"); return -ENOMEM; } @@ -3744,7 +3746,7 @@ int megasas_alloc_cmds(struct megasas_instance *instance) * Create a frame pool and assign one frame to each cmd */ if (megasas_create_frame_pool(instance)) { - printk(KERN_DEBUG "megasas: Error creating frame DMA pool\n"); + dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error creating frame DMA pool\n"); megasas_free_cmds(instance); } @@ -3773,7 +3775,7 @@ megasas_get_pd_list(struct megasas_instance *instance) cmd = megasas_get_cmd(instance); if (!cmd) { - printk(KERN_DEBUG "megasas (get_pd_list): Failed to get cmd\n"); + dev_printk(KERN_DEBUG, &instance->pdev->dev, "(get_pd_list): Failed to get cmd\n"); return -ENOMEM; } @@ -3783,7 +3785,7 @@ megasas_get_pd_list(struct megasas_instance *instance) MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST), &ci_h); if (!ci) { - printk(KERN_DEBUG "Failed to alloc mem for pd_list\n"); + dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc mem for pd_list\n"); megasas_return_cmd(instance, cmd); return -ENOMEM; } @@ -3811,12 +3813,12 @@ megasas_get_pd_list(struct megasas_instance *instance) ret = megasas_issue_polled(instance, cmd); /* - * the following function will get the instance PD LIST. - */ + * the following function will get the instance PD LIST. + */ pd_addr = ci->addr; - if ( ret == 0 && + if (ret == 0 && (le32_to_cpu(ci->count) < (MEGASAS_MAX_PD_CHANNELS * MEGASAS_MAX_DEV_PER_CHANNEL))) { @@ -3868,7 +3870,7 @@ megasas_get_ld_list(struct megasas_instance *instance) cmd = megasas_get_cmd(instance); if (!cmd) { - printk(KERN_DEBUG "megasas_get_ld_list: Failed to get cmd\n"); + dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_list: Failed to get cmd\n"); return -ENOMEM; } @@ -3879,7 +3881,7 @@ megasas_get_ld_list(struct megasas_instance *instance) &ci_h); if (!ci) { - printk(KERN_DEBUG "Failed to alloc mem in get_ld_list\n"); + dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc mem in get_ld_list\n"); megasas_return_cmd(instance, cmd); return -ENOMEM; } @@ -3954,8 +3956,8 @@ megasas_ld_list_query(struct megasas_instance *instance, u8 query_type) cmd = megasas_get_cmd(instance); if (!cmd) { - printk(KERN_WARNING - "megasas:(megasas_ld_list_query): Failed to get cmd\n"); + dev_warn(&instance->pdev->dev, + "megasas_ld_list_query: Failed to get cmd\n"); return -ENOMEM; } @@ -3965,8 +3967,8 @@ megasas_ld_list_query(struct megasas_instance *instance, u8 query_type) sizeof(struct MR_LD_TARGETID_LIST), &ci_h); if (!ci) { - printk(KERN_WARNING - "megasas: Failed to alloc mem for ld_list_query\n"); + dev_warn(&instance->pdev->dev, + "Failed to alloc mem for ld_list_query\n"); megasas_return_cmd(instance, cmd); return -ENOMEM; } @@ -4052,11 +4054,11 @@ static void megasas_update_ext_vd_details(struct megasas_instance *instance) instance->supportmax256vd ? "Extended VD(240 VD)firmware" : "Legacy(64 VD) firmware"); - old_map_sz = sizeof(struct MR_FW_RAID_MAP) + + old_map_sz = sizeof(struct MR_FW_RAID_MAP) + (sizeof(struct MR_LD_SPAN_MAP) * (instance->fw_supported_vd_count - 1)); - new_map_sz = sizeof(struct MR_FW_RAID_MAP_EXT); - fusion->drv_map_sz = sizeof(struct MR_DRV_RAID_MAP) + + new_map_sz = sizeof(struct MR_FW_RAID_MAP_EXT); + fusion->drv_map_sz = sizeof(struct MR_DRV_RAID_MAP) + (sizeof(struct MR_LD_SPAN_MAP) * (instance->drv_supported_vd_count - 1)); @@ -4067,7 +4069,6 @@ static void megasas_update_ext_vd_details(struct megasas_instance *instance) fusion->current_map_sz = new_map_sz; else fusion->current_map_sz = old_map_sz; - } /** @@ -4093,7 +4094,7 @@ megasas_get_ctrl_info(struct megasas_instance *instance) cmd = megasas_get_cmd(instance); if (!cmd) { - printk(KERN_DEBUG "megasas: Failed to get a free cmd\n"); + dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a free cmd\n"); return -ENOMEM; } @@ -4103,7 +4104,7 @@ megasas_get_ctrl_info(struct megasas_instance *instance) sizeof(struct megasas_ctrl_info), &ci_h); if (!ci) { - printk(KERN_DEBUG "Failed to alloc mem for ctrl info\n"); + dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc mem for ctrl info\n"); megasas_return_cmd(instance, cmd); return -ENOMEM; } @@ -4214,9 +4215,7 @@ static int megasas_issue_init_mfi(struct megasas_instance *instance) { __le32 context; - struct megasas_cmd *cmd; - struct megasas_init_frame *init_frame; struct megasas_init_queue_info *initq_info; dma_addr_t init_frame_h; @@ -4269,7 +4268,7 @@ megasas_issue_init_mfi(struct megasas_instance *instance) */ if (megasas_issue_polled(instance, cmd)) { - printk(KERN_ERR "megasas: Failed to init firmware\n"); + dev_err(&instance->pdev->dev, "Failed to init firmware\n"); megasas_return_cmd(instance, cmd); goto fail_fw_init; } @@ -4342,7 +4341,7 @@ megasas_init_adapter_mfi(struct megasas_instance *instance) &instance->reply_queue_h); if (!instance->reply_queue) { - printk(KERN_DEBUG "megasas: Out of DMA mem for reply queue\n"); + dev_printk(KERN_DEBUG, &instance->pdev->dev, "Out of DMA mem for reply queue\n"); goto fail_reply_queue; } @@ -4361,7 +4360,7 @@ megasas_init_adapter_mfi(struct megasas_instance *instance) (instance->instancet->read_fw_status_reg(reg_set) & 0x04000000); - printk(KERN_NOTICE "megasas_init_mfi: fw_support_ieee=%d", + dev_notice(&instance->pdev->dev, "megasas_init_mfi: fw_support_ieee=%d", instance->fw_support_ieee); if (instance->fw_support_ieee) @@ -4505,7 +4504,7 @@ static int megasas_init_fw(struct megasas_instance *instance) instance->bar = find_first_bit(&bar_list, sizeof(unsigned long)); if (pci_request_selected_regions(instance->pdev, instance->bar, "megasas: LSI")) { - printk(KERN_DEBUG "megasas: IO memory region busy!\n"); + dev_printk(KERN_DEBUG, &instance->pdev->dev, "IO memory region busy!\n"); return -EBUSY; } @@ -4513,7 +4512,7 @@ static int megasas_init_fw(struct megasas_instance *instance) instance->reg_set = ioremap_nocache(base_addr, 8192); if (!instance->reg_set) { - printk(KERN_DEBUG "megasas: Failed to map IO mem\n"); + dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to map IO mem\n"); goto fail_ioremap; } @@ -4551,7 +4550,7 @@ static int megasas_init_fw(struct megasas_instance *instance) (instance, instance->reg_set); atomic_set(&instance->fw_reset_no_pci_access, 0); dev_info(&instance->pdev->dev, - "megasas: FW restarted successfully from %s!\n", + "FW restarted successfully from %s!\n", __func__); /*waitting for about 30 second before retry*/ @@ -4652,16 +4651,15 @@ static int megasas_init_fw(struct megasas_instance *instance) instance->instancet->enable_intr(instance); - printk(KERN_ERR "megasas: INIT adapter done\n"); + dev_err(&instance->pdev->dev, "INIT adapter done\n"); /** for passthrough - * the following function will get the PD LIST. - */ - - memset(instance->pd_list, 0 , + * the following function will get the PD LIST. + */ + memset(instance->pd_list, 0, (MEGASAS_MAX_PD * sizeof(struct megasas_pd_list))); if (megasas_get_pd_list(instance) < 0) { - printk(KERN_ERR "megasas: failed to get PD list\n"); + dev_err(&instance->pdev->dev, "failed to get PD list\n"); goto fail_get_pd_list; } @@ -4686,7 +4684,7 @@ static int megasas_init_fw(struct megasas_instance *instance) le16_to_cpu(ctrl_info->max_strips_per_io); max_sectors_2 = le32_to_cpu(ctrl_info->max_request_size); - tmp_sectors = min_t(u32, max_sectors_1 , max_sectors_2); + tmp_sectors = min_t(u32, max_sectors_1, max_sectors_2); instance->disableOnlineCtrlReset = ctrl_info->properties.OnOffProperties.disableOnlineCtrlReset; @@ -4960,7 +4958,7 @@ megasas_register_aen(struct megasas_instance *instance, u32 seq_num, aen_cmd, 30); if (ret_val) { - printk(KERN_DEBUG "megasas: Failed to abort " + dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to abort " "previous AEN command\n"); return ret_val; } @@ -5051,7 +5049,7 @@ static int megasas_start_aen(struct megasas_instance *instance) static int megasas_io_attach(struct megasas_instance *instance) { struct Scsi_Host *host = instance->host; - u32 error; + u32 error; /* * Export parameters required by SCSI mid-layer @@ -5079,7 +5077,7 @@ static int megasas_io_attach(struct megasas_instance *instance) (max_sectors <= MEGASAS_MAX_SECTORS)) { instance->max_sectors_per_req = max_sectors; } else { - printk(KERN_INFO "megasas: max_sectors should be > 0" + dev_info(&instance->pdev->dev, "max_sectors should be > 0" "and <= %d (or < 1MB for GEN2 controller)\n", instance->max_sectors_per_req); } @@ -5126,7 +5124,7 @@ static int megasas_set_dma_mask(struct pci_dev *pdev) { /* - * All our contollers are capable of performing 64-bit DMA + * All our controllers are capable of performing 64-bit DMA */ if (IS_DMA64) { if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) { @@ -5206,13 +5204,13 @@ static int megasas_probe_one(struct pci_dev *pdev, sizeof(struct megasas_instance)); if (!host) { - printk(KERN_DEBUG "megasas: scsi_host_alloc failed\n"); + dev_printk(KERN_DEBUG, &pdev->dev, "scsi_host_alloc failed\n"); goto fail_alloc_instance; } instance = (struct megasas_instance *)host->hostdata; memset(instance, 0, sizeof(*instance)); - atomic_set( &instance->fw_reset_no_pci_access, 0 ); + atomic_set(&instance->fw_reset_no_pci_access, 0); instance->pdev = pdev; switch (instance->pdev->device) { @@ -5226,7 +5224,7 @@ static int megasas_probe_one(struct pci_dev *pdev, instance->ctrl_context = (void *)__get_free_pages(GFP_KERNEL, instance->ctrl_context_pages); if (!instance->ctrl_context) { - printk(KERN_DEBUG "megasas: Failed to allocate " + dev_printk(KERN_DEBUG, &pdev->dev, "Failed to allocate " "memory for Fusion context info\n"); goto fail_alloc_dma_buf; } @@ -5245,7 +5243,7 @@ static int megasas_probe_one(struct pci_dev *pdev, &instance->consumer_h); if (!instance->producer || !instance->consumer) { - printk(KERN_DEBUG "megasas: Failed to allocate" + dev_printk(KERN_DEBUG, &pdev->dev, "Failed to allocate" "memory for producer, consumer\n"); goto fail_alloc_dma_buf; } @@ -5276,7 +5274,7 @@ static int megasas_probe_one(struct pci_dev *pdev, CRASH_DMA_BUF_SIZE, &instance->crash_dump_h); if (!instance->crash_dump_buf) - dev_err(&instance->pdev->dev, "Can't allocate Firmware " + dev_err(&pdev->dev, "Can't allocate Firmware " "crash dump DMA buffer\n"); megasas_poll_wait_aen = 0; @@ -5292,7 +5290,7 @@ static int megasas_probe_one(struct pci_dev *pdev, &instance->evt_detail_h); if (!instance->evt_detail) { - printk(KERN_DEBUG "megasas: Failed to allocate memory for " + dev_printk(KERN_DEBUG, &pdev->dev, "Failed to allocate memory for " "event detail structure\n"); goto fail_alloc_dma_buf; } @@ -5356,7 +5354,7 @@ static int megasas_probe_one(struct pci_dev *pdev, pci_alloc_consistent(pdev, sizeof(struct MR_LD_VF_AFFILIATION_111), &instance->vf_affiliation_111_h); if (!instance->vf_affiliation_111) - printk(KERN_WARNING "megasas: Can't allocate " + dev_warn(&pdev->dev, "Can't allocate " "memory for VF affiliation buffer\n"); } else { instance->vf_affiliation = @@ -5365,7 +5363,7 @@ static int megasas_probe_one(struct pci_dev *pdev, sizeof(struct MR_LD_VF_AFFILIATION), &instance->vf_affiliation_h); if (!instance->vf_affiliation) - printk(KERN_WARNING "megasas: Can't allocate " + dev_warn(&pdev->dev, "Can't allocate " "memory for VF affiliation buffer\n"); } } @@ -5399,7 +5397,7 @@ static int megasas_probe_one(struct pci_dev *pdev, * Initiate AEN (Asynchronous Event Notification) */ if (megasas_start_aen(instance)) { - printk(KERN_DEBUG "megasas: start aen failed\n"); + dev_printk(KERN_DEBUG, &pdev->dev, "start aen failed\n"); goto fail_start_aen; } @@ -5409,8 +5407,8 @@ static int megasas_probe_one(struct pci_dev *pdev, return 0; - fail_start_aen: - fail_io_attach: +fail_start_aen: +fail_io_attach: megasas_mgmt_info.count--; megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = NULL; megasas_mgmt_info.max_index--; @@ -5428,7 +5426,7 @@ static int megasas_probe_one(struct pci_dev *pdev, if (instance->msix_vectors) pci_disable_msix(instance->pdev); fail_init_mfi: - fail_alloc_dma_buf: +fail_alloc_dma_buf: if (instance->evt_detail) pci_free_consistent(pdev, sizeof(struct megasas_evt_detail), instance->evt_detail, @@ -5442,8 +5440,8 @@ fail_init_mfi: instance->consumer_h); scsi_host_put(host); - fail_alloc_instance: - fail_set_dma_mask: +fail_alloc_instance: +fail_set_dma_mask: pci_disable_device(pdev); return -ENODEV; @@ -5485,8 +5483,6 @@ static void megasas_flush_cache(struct megasas_instance *instance) " from %s\n", __func__); megasas_return_cmd(instance, cmd); - - return; } /** @@ -5532,8 +5528,6 @@ static void megasas_shutdown_controller(struct megasas_instance *instance, "from %s\n", __func__); megasas_return_cmd(instance, cmd); - - return; } #ifdef CONFIG_PM @@ -5607,7 +5601,7 @@ megasas_resume(struct pci_dev *pdev) rval = pci_enable_device_mem(pdev); if (rval) { - printk(KERN_ERR "megasas: Enable device failed\n"); + dev_err(&pdev->dev, "Enable device failed\n"); return rval; } @@ -5686,7 +5680,7 @@ megasas_resume(struct pci_dev *pdev) * Initiate AEN (Asynchronous Event Notification) */ if (megasas_start_aen(instance)) - printk(KERN_ERR "megasas: Start AEN failed\n"); + dev_err(&instance->pdev->dev, "Start AEN failed\n"); return 0; @@ -5839,8 +5833,6 @@ static void megasas_detach_one(struct pci_dev *pdev) scsi_host_put(host); pci_disable_device(pdev); - - return; } /** @@ -5909,11 +5901,11 @@ static unsigned int megasas_mgmt_poll(struct file *file, poll_table *wait) { unsigned int mask; unsigned long flags; + poll_wait(file, &megasas_poll_wait, wait); spin_lock_irqsave(&poll_aen_lock, flags); if (megasas_poll_wait_aen) - mask = (POLLIN | POLLRDNORM); - + mask = (POLLIN | POLLRDNORM); else mask = 0; megasas_poll_wait_aen = 0; @@ -5927,8 +5919,7 @@ static unsigned int megasas_mgmt_poll(struct file *file, poll_table *wait) * @cmd: MFI command frame */ -static int megasas_set_crash_dump_params_ioctl( - struct megasas_cmd *cmd) +static int megasas_set_crash_dump_params_ioctl(struct megasas_cmd *cmd) { struct megasas_instance *local_instance; int i, error = 0; @@ -5982,14 +5973,14 @@ megasas_mgmt_fw_ioctl(struct megasas_instance *instance, memset(kbuff_arr, 0, sizeof(kbuff_arr)); if (ioc->sge_count > MAX_IOCTL_SGE) { - printk(KERN_DEBUG "megasas: SGE count [%d] > max limit [%d]\n", + dev_printk(KERN_DEBUG, &instance->pdev->dev, "SGE count [%d] > max limit [%d]\n", ioc->sge_count, MAX_IOCTL_SGE); return -EINVAL; } cmd = megasas_get_cmd(instance); if (!cmd) { - printk(KERN_DEBUG "megasas: Failed to get a cmd packet\n"); + dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a cmd packet\n"); return -ENOMEM; } @@ -6034,8 +6025,8 @@ megasas_mgmt_fw_ioctl(struct megasas_instance *instance, ioc->sgl[i].iov_len, &buf_handle, GFP_KERNEL); if (!kbuff_arr[i]) { - printk(KERN_DEBUG "megasas: Failed to alloc " - "kernel SGL buffer for IOCTL \n"); + dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc " + "kernel SGL buffer for IOCTL\n"); error = -ENOMEM; goto out; } @@ -6108,7 +6099,7 @@ megasas_mgmt_fw_ioctl(struct megasas_instance *instance, if (copy_to_user((void __user *)((unsigned long)(*sense_ptr)), sense, ioc->sense_len)) { - printk(KERN_ERR "megasas: Failed to copy out to user " + dev_err(&instance->pdev->dev, "Failed to copy out to user " "sense data\n"); error = -EFAULT; goto out; @@ -6120,11 +6111,11 @@ megasas_mgmt_fw_ioctl(struct megasas_instance *instance, */ if (copy_to_user(&user_ioc->frame.hdr.cmd_status, &cmd->frame->hdr.cmd_status, sizeof(u8))) { - printk(KERN_DEBUG "megasas: Error copying out cmd_status\n"); + dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error copying out cmd_status\n"); error = -EFAULT; } - out: +out: if (sense) { dma_free_coherent(&instance->pdev->dev, ioc->sense_len, sense, sense_handle); @@ -6180,7 +6171,7 @@ static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg) } if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) { - printk(KERN_ERR "Controller in crit error\n"); + dev_err(&instance->pdev->dev, "Controller in crit error\n"); error = -ENODEV; goto out_kfree_ioc; } @@ -6205,7 +6196,7 @@ static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg) spin_unlock_irqrestore(&instance->hba_lock, flags); if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) { - printk(KERN_NOTICE "megasas: waiting" + dev_notice(&instance->pdev->dev, "waiting" "for controller reset to finish\n"); } @@ -6216,7 +6207,7 @@ static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg) if (instance->adprecovery != MEGASAS_HBA_OPERATIONAL) { spin_unlock_irqrestore(&instance->hba_lock, flags); - printk(KERN_ERR "megaraid_sas: timed out while" + dev_err(&instance->pdev->dev, "timed out while" "waiting for HBA to recover\n"); error = -ENODEV; goto out_up; @@ -6224,10 +6215,10 @@ static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg) spin_unlock_irqrestore(&instance->hba_lock, flags); error = megasas_mgmt_fw_ioctl(instance, user_ioc, ioc); - out_up: +out_up: up(&instance->ioctl_sem); - out_kfree_ioc: +out_kfree_ioc: kfree(ioc); return error; } @@ -6275,7 +6266,7 @@ static int megasas_mgmt_ioctl_aen(struct file *file, unsigned long arg) spin_unlock_irqrestore(&instance->hba_lock, flags); if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) { - printk(KERN_NOTICE "megasas: waiting for" + dev_notice(&instance->pdev->dev, "waiting for" "controller reset to finish\n"); } @@ -6285,8 +6276,8 @@ static int megasas_mgmt_ioctl_aen(struct file *file, unsigned long arg) spin_lock_irqsave(&instance->hba_lock, flags); if (instance->adprecovery != MEGASAS_HBA_OPERATIONAL) { spin_unlock_irqrestore(&instance->hba_lock, flags); - printk(KERN_ERR "megaraid_sas: timed out while waiting" - "for HBA to recover.\n"); + dev_err(&instance->pdev->dev, "timed out while waiting" + "for HBA to recover\n"); return -ENODEV; } spin_unlock_irqrestore(&instance->hba_lock, flags); @@ -6462,7 +6453,8 @@ static ssize_t megasas_sysfs_set_dbg_lvl(struct device_driver *dd, const char *buf, size_t count) { int retval = count; - if(sscanf(buf,"%u",&megasas_dbg_lvl)<1){ + + if (sscanf(buf, "%u", &megasas_dbg_lvl) < 1) { printk(KERN_ERR "megasas: could not set dbg_lvl\n"); retval = -EINVAL; } @@ -6502,7 +6494,7 @@ megasas_aen_polling(struct work_struct *work) if (instance->adprecovery == MEGASAS_HBA_OPERATIONAL) break; if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) { - printk(KERN_NOTICE "megasas: %s waiting for " + dev_notice(&instance->pdev->dev, "%s waiting for " "controller reset to finish for scsi%d\n", __func__, instance->host->host_no); } @@ -6524,14 +6516,12 @@ megasas_aen_polling(struct work_struct *work) pd_index = (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j; - sdev1 = - scsi_device_lookup(host, i, j, 0); + sdev1 = scsi_device_lookup(host, i, j, 0); if (instance->pd_list[pd_index].driveState == MR_PD_STATE_SYSTEM) { - if (!sdev1) { + if (!sdev1) scsi_add_device(host, i, j, 0); - } if (sdev1) scsi_device_put(sdev1); @@ -6552,14 +6542,12 @@ megasas_aen_polling(struct work_struct *work) pd_index = (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j; - sdev1 = - scsi_device_lookup(host, i, j, 0); + sdev1 = scsi_device_lookup(host, i, j, 0); if (instance->pd_list[pd_index].driveState == MR_PD_STATE_SYSTEM) { - if (sdev1) { + if (sdev1) scsi_device_put(sdev1); - } } else { if (sdev1) { scsi_remove_device(sdev1); @@ -6644,13 +6632,13 @@ megasas_aen_polling(struct work_struct *work) break; } } else { - printk(KERN_ERR "invalid evt_detail!\n"); + dev_err(&instance->pdev->dev, "invalid evt_detail!\n"); kfree(ev); return; } if (doscan) { - printk(KERN_INFO "megaraid_sas: scanning for scsi%d...\n", + dev_info(&instance->pdev->dev, "scanning for scsi%d...\n", instance->host->host_no); if (megasas_get_pd_list(instance) == 0) { for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) { @@ -6705,7 +6693,7 @@ megasas_aen_polling(struct work_struct *work) } } - if ( instance->aen_cmd != NULL ) { + if (instance->aen_cmd != NULL) { kfree(ev); return ; } @@ -6722,7 +6710,7 @@ megasas_aen_polling(struct work_struct *work) mutex_unlock(&instance->aen_mutex); if (error) - printk(KERN_ERR "register aen failed error %x\n", error); + dev_err(&instance->pdev->dev, "register aen failed error %x\n", error); kfree(ev); } diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c index 46a0f8f4f677..f0837cc3b163 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fusion.c +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c @@ -221,7 +221,7 @@ static void megasas_teardown_frame_pool_fusion( struct megasas_cmd_fusion *cmd; if (!fusion->sg_dma_pool || !fusion->sense_dma_pool) { - printk(KERN_ERR "megasas: dma pool is null. SG Pool %p, " + dev_err(&instance->pdev->dev, "dma pool is null. SG Pool %p, " "sense pool : %p\n", fusion->sg_dma_pool, fusion->sense_dma_pool); return; @@ -332,8 +332,7 @@ static int megasas_create_frame_pool_fusion(struct megasas_instance *instance) total_sz_chain_frame, 4, 0); if (!fusion->sg_dma_pool) { - printk(KERN_DEBUG "megasas: failed to setup request pool " - "fusion\n"); + dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup request pool fusion\n"); return -ENOMEM; } fusion->sense_dma_pool = pci_pool_create("megasas sense pool fusion", @@ -341,8 +340,7 @@ static int megasas_create_frame_pool_fusion(struct megasas_instance *instance) SCSI_SENSE_BUFFERSIZE, 64, 0); if (!fusion->sense_dma_pool) { - printk(KERN_DEBUG "megasas: failed to setup sense pool " - "fusion\n"); + dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup sense pool fusion\n"); pci_pool_destroy(fusion->sg_dma_pool); fusion->sg_dma_pool = NULL; return -ENOMEM; @@ -366,7 +364,7 @@ static int megasas_create_frame_pool_fusion(struct megasas_instance *instance) * whatever has been allocated */ if (!cmd->sg_frame || !cmd->sense) { - printk(KERN_DEBUG "megasas: pci_pool_alloc failed\n"); + dev_printk(KERN_DEBUG, &instance->pdev->dev, "pci_pool_alloc failed\n"); megasas_teardown_frame_pool_fusion(instance); return -ENOMEM; } @@ -412,7 +410,7 @@ megasas_alloc_cmds_fusion(struct megasas_instance *instance) &fusion->req_frames_desc_phys, GFP_KERNEL); if (!fusion->req_frames_desc) { - printk(KERN_ERR "megasas; Could not allocate memory for " + dev_err(&instance->pdev->dev, "Could not allocate memory for " "request_frames\n"); goto fail_req_desc; } @@ -423,7 +421,7 @@ megasas_alloc_cmds_fusion(struct megasas_instance *instance) fusion->reply_alloc_sz * count, 16, 0); if (!fusion->reply_frames_desc_pool) { - printk(KERN_ERR "megasas; Could not allocate memory for " + dev_err(&instance->pdev->dev, "Could not allocate memory for " "reply_frame pool\n"); goto fail_reply_desc; } @@ -432,7 +430,7 @@ megasas_alloc_cmds_fusion(struct megasas_instance *instance) pci_pool_alloc(fusion->reply_frames_desc_pool, GFP_KERNEL, &fusion->reply_frames_desc_phys); if (!fusion->reply_frames_desc) { - printk(KERN_ERR "megasas; Could not allocate memory for " + dev_err(&instance->pdev->dev, "Could not allocate memory for " "reply_frame pool\n"); pci_pool_destroy(fusion->reply_frames_desc_pool); goto fail_reply_desc; @@ -449,7 +447,7 @@ megasas_alloc_cmds_fusion(struct megasas_instance *instance) fusion->io_frames_alloc_sz, 16, 0); if (!fusion->io_request_frames_pool) { - printk(KERN_ERR "megasas: Could not allocate memory for " + dev_err(&instance->pdev->dev, "Could not allocate memory for " "io_request_frame pool\n"); goto fail_io_frames; } @@ -458,7 +456,7 @@ megasas_alloc_cmds_fusion(struct megasas_instance *instance) pci_pool_alloc(fusion->io_request_frames_pool, GFP_KERNEL, &fusion->io_request_frames_phys); if (!fusion->io_request_frames) { - printk(KERN_ERR "megasas: Could not allocate memory for " + dev_err(&instance->pdev->dev, "Could not allocate memory for " "io_request_frames frames\n"); pci_pool_destroy(fusion->io_request_frames_pool); goto fail_io_frames; @@ -473,7 +471,7 @@ megasas_alloc_cmds_fusion(struct megasas_instance *instance) * max_cmd, GFP_KERNEL); if (!fusion->cmd_list) { - printk(KERN_DEBUG "megasas: out of memory. Could not alloc " + dev_printk(KERN_DEBUG, &instance->pdev->dev, "out of memory. Could not alloc " "memory for cmd_list_fusion\n"); goto fail_cmd_list; } @@ -483,7 +481,7 @@ megasas_alloc_cmds_fusion(struct megasas_instance *instance) fusion->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd_fusion), GFP_KERNEL); if (!fusion->cmd_list[i]) { - printk(KERN_ERR "Could not alloc cmd list fusion\n"); + dev_err(&instance->pdev->dev, "Could not alloc cmd list fusion\n"); for (j = 0; j < i; j++) kfree(fusion->cmd_list[j]); @@ -527,7 +525,7 @@ megasas_alloc_cmds_fusion(struct megasas_instance *instance) * Create a frame pool and assign one frame to each cmd */ if (megasas_create_frame_pool_fusion(instance)) { - printk(KERN_DEBUG "megasas: Error creating frame DMA pool\n"); + dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error creating frame DMA pool\n"); megasas_free_cmds_fusion(instance); goto fail_req_desc; } @@ -613,7 +611,7 @@ megasas_ioc_init_fusion(struct megasas_instance *instance) cmd = megasas_get_cmd(instance); if (!cmd) { - printk(KERN_ERR "Could not allocate cmd for INIT Frame\n"); + dev_err(&instance->pdev->dev, "Could not allocate cmd for INIT Frame\n"); ret = 1; goto fail_get_cmd; } @@ -624,7 +622,7 @@ megasas_ioc_init_fusion(struct megasas_instance *instance) &ioc_init_handle, GFP_KERNEL); if (!IOCInitMessage) { - printk(KERN_ERR "Could not allocate memory for " + dev_err(&instance->pdev->dev, "Could not allocate memory for " "IOCInitMessage\n"); ret = 1; goto fail_fw_init; @@ -714,7 +712,7 @@ megasas_ioc_init_fusion(struct megasas_instance *instance) ret = 1; goto fail_fw_init; } - printk(KERN_ERR "megasas:IOC Init cmd success\n"); + dev_err(&instance->pdev->dev, "Init cmd success\n"); ret = 0; @@ -757,7 +755,7 @@ megasas_get_ld_map_info(struct megasas_instance *instance) cmd = megasas_get_cmd(instance); if (!cmd) { - printk(KERN_DEBUG "megasas: Failed to get cmd for map info.\n"); + dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get cmd for map info\n"); return -ENOMEM; } @@ -776,7 +774,7 @@ megasas_get_ld_map_info(struct megasas_instance *instance) ci_h = fusion->ld_map_phys[(instance->map_id & 1)]; if (!ci) { - printk(KERN_DEBUG "Failed to alloc mem for ld_map_info\n"); + dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc mem for ld_map_info\n"); megasas_return_cmd(instance, cmd); return -ENOMEM; } @@ -851,8 +849,7 @@ megasas_sync_map_info(struct megasas_instance *instance) cmd = megasas_get_cmd(instance); if (!cmd) { - printk(KERN_DEBUG "megasas: Failed to get cmd for sync" - "info.\n"); + dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get cmd for sync info\n"); return -ENOMEM; } @@ -1097,7 +1094,7 @@ megasas_init_adapter_fusion(struct megasas_instance *instance) &fusion->ld_map_phys[i], GFP_KERNEL); if (!fusion->ld_map[i]) { - printk(KERN_ERR "megasas: Could not allocate memory " + dev_err(&instance->pdev->dev, "Could not allocate memory " "for map info\n"); goto fail_map_info; } @@ -1162,7 +1159,7 @@ map_cmd_status(struct megasas_cmd_fusion *cmd, u8 status, u8 ext_status) cmd->scmd->result = DID_IMM_RETRY << 16; break; default: - printk(KERN_DEBUG "megasas: FW status %#x\n", status); + dev_printk(KERN_DEBUG, &cmd->instance->pdev->dev, "FW status %#x\n", status); cmd->scmd->result = DID_ERROR << 16; break; } @@ -1851,7 +1848,7 @@ megasas_build_io_fusion(struct megasas_instance *instance, &io_request->SGL, cmd); if (sge_count > instance->max_num_sge) { - printk(KERN_ERR "megasas: Error. sge_count (0x%x) exceeds " + dev_err(&instance->pdev->dev, "Error. sge_count (0x%x) exceeds " "max (0x%x) allowed\n", sge_count, instance->max_num_sge); return 1; @@ -1885,7 +1882,7 @@ megasas_get_request_descriptor(struct megasas_instance *instance, u16 index) struct fusion_context *fusion; if (index >= instance->max_fw_cmds) { - printk(KERN_ERR "megasas: Invalid SMID (0x%x)request for " + dev_err(&instance->pdev->dev, "Invalid SMID (0x%x)request for " "descriptor for scsi%d\n", index, instance->host->host_no); return NULL; @@ -1927,7 +1924,7 @@ megasas_build_and_issue_cmd_fusion(struct megasas_instance *instance, if (megasas_build_io_fusion(instance, scmd, cmd)) { megasas_return_cmd_fusion(instance, cmd); - printk(KERN_ERR "megasas: Error building command.\n"); + dev_err(&instance->pdev->dev, "Error building command\n"); cmd->request_desc = NULL; return 1; } @@ -1937,7 +1934,7 @@ megasas_build_and_issue_cmd_fusion(struct megasas_instance *instance, if (cmd->io_request->ChainOffset != 0 && cmd->io_request->ChainOffset != 0xF) - printk(KERN_ERR "megasas: The chain offset value is not " + dev_err(&instance->pdev->dev, "The chain offset value is not " "correct : %x\n", cmd->io_request->ChainOffset); /* @@ -2025,7 +2022,7 @@ complete_cmd_fusion(struct megasas_instance *instance, u32 MSIxIndex) if (reply_descript_type == MPI2_RPY_DESCRIPT_FLAGS_SCSI_IO_SUCCESS) { if (megasas_dbg_lvl == 5) - printk(KERN_ERR "\nmegasas: FAST Path " + dev_err(&instance->pdev->dev, "\nFAST Path " "IO Success\n"); } /* Fall thru and complete IO */ @@ -2186,7 +2183,7 @@ irqreturn_t megasas_isr_fusion(int irq, void *devp) else if (fw_state == MFI_STATE_FAULT) schedule_work(&instance->work_init); } else if (fw_state == MFI_STATE_FAULT) { - printk(KERN_WARNING "megaraid_sas: Iop2SysDoorbellInt" + dev_warn(&instance->pdev->dev, "Iop2SysDoorbellInt" "for scsi%d\n", instance->host->host_no); schedule_work(&instance->work_init); } @@ -2269,7 +2266,7 @@ build_mpt_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd) u16 index; if (build_mpt_mfi_pass_thru(instance, cmd)) { - printk(KERN_ERR "Couldn't build MFI pass thru cmd\n"); + dev_err(&instance->pdev->dev, "Couldn't build MFI pass thru cmd\n"); return NULL; } @@ -2303,7 +2300,7 @@ megasas_issue_dcmd_fusion(struct megasas_instance *instance, req_desc = build_mpt_cmd(instance, cmd); if (!req_desc) { - printk(KERN_ERR "Couldn't issue MFI pass thru cmd\n"); + dev_err(&instance->pdev->dev, "Couldn't issue MFI pass thru cmd\n"); return; } megasas_fire_cmd_fusion(instance, req_desc); @@ -2413,7 +2410,7 @@ int megasas_wait_for_outstanding_fusion(struct megasas_instance *instance, fw_state = instance->instancet->read_fw_status_reg( instance->reg_set) & MFI_STATE_MASK; if (fw_state == MFI_STATE_FAULT) { - printk(KERN_WARNING "megasas: Found FW in FAULT state," + dev_warn(&instance->pdev->dev, "Found FW in FAULT state," " will reset adapter scsi%d.\n", instance->host->host_no); retval = 1; @@ -2436,7 +2433,7 @@ int megasas_wait_for_outstanding_fusion(struct megasas_instance *instance, hb_seconds_missed++; if (hb_seconds_missed == (MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF/HZ)) { - printk(KERN_WARNING "megasas: SR-IOV:" + dev_warn(&instance->pdev->dev, "SR-IOV:" " Heartbeat never completed " " while polling during I/O " " timeout handling for " @@ -2454,7 +2451,7 @@ int megasas_wait_for_outstanding_fusion(struct megasas_instance *instance, goto out; if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) { - printk(KERN_NOTICE "megasas: [%2d]waiting for %d " + dev_notice(&instance->pdev->dev, "[%2d]waiting for %d " "commands to complete for scsi%d\n", i, outstanding, instance->host->host_no); megasas_complete_cmd_dpc_fusion( @@ -2464,7 +2461,7 @@ int megasas_wait_for_outstanding_fusion(struct megasas_instance *instance, } if (atomic_read(&instance->fw_outstanding)) { - printk("megaraid_sas: pending commands remain after waiting, " + dev_err(&instance->pdev->dev, "pending commands remain after waiting, " "will reset adapter scsi%d.\n", instance->host->host_no); retval = 1; @@ -2564,7 +2561,7 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int iotimeout) mutex_lock(&instance->reset_mutex); if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) { - printk(KERN_WARNING "megaraid_sas: Hardware critical error, " + dev_warn(&instance->pdev->dev, "Hardware critical error, " "returning FAILED for scsi%d.\n", instance->host->host_no); mutex_unlock(&instance->reset_mutex); @@ -2618,7 +2615,7 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int iotimeout) if (megasas_wait_for_outstanding_fusion(instance, iotimeout, &convert)) { instance->adprecovery = MEGASAS_ADPRESET_SM_INFAULT; - printk(KERN_WARNING "megaraid_sas: resetting fusion " + dev_warn(&instance->pdev->dev, "resetting fusion " "adapter scsi%d.\n", instance->host->host_no); if (convert) iotimeout = 0; @@ -2645,7 +2642,7 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int iotimeout) if (instance->disableOnlineCtrlReset || (abs_state == MFI_STATE_FAULT && !reset_adapter)) { /* Reset not supported, kill adapter */ - printk(KERN_WARNING "megaraid_sas: Reset not supported" + dev_warn(&instance->pdev->dev, "Reset not supported" ", killing adapter scsi%d.\n", instance->host->host_no); megaraid_sas_kill_hba(instance); @@ -2663,7 +2660,7 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int iotimeout) instance->hb_host_mem->HB.driverCounter)) { instance->hb_host_mem->HB.driverCounter = instance->hb_host_mem->HB.fwCounter; - printk(KERN_WARNING "megasas: SR-IOV:" + dev_warn(&instance->pdev->dev, "SR-IOV:" "Late FW heartbeat update for " "scsi%d.\n", instance->host->host_no); @@ -2679,8 +2676,8 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int iotimeout) abs_state = status_reg & MFI_STATE_MASK; if (abs_state == MFI_STATE_READY) { - printk(KERN_WARNING "megasas" - ": SR-IOV: FW was found" + dev_warn(&instance->pdev->dev, + "SR-IOV: FW was found" "to be in ready state " "for scsi%d.\n", instance->host->host_no); @@ -2689,7 +2686,7 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int iotimeout) msleep(20); } if (abs_state != MFI_STATE_READY) { - printk(KERN_WARNING "megasas: SR-IOV: " + dev_warn(&instance->pdev->dev, "SR-IOV: " "FW not in ready state after %d" " seconds for scsi%d, status_reg = " "0x%x.\n", @@ -2731,7 +2728,7 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int iotimeout) host_diag = readl(&instance->reg_set->fusion_host_diag); if (retry++ == 100) { - printk(KERN_WARNING "megaraid_sas: " + dev_warn(&instance->pdev->dev, "Host diag unlock failed! " "for scsi%d\n", instance->host->host_no); @@ -2754,7 +2751,7 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int iotimeout) host_diag = readl(&instance->reg_set->fusion_host_diag); if (retry++ == 1000) { - printk(KERN_WARNING "megaraid_sas: " + dev_warn(&instance->pdev->dev, "Diag reset adapter never " "cleared for scsi%d!\n", instance->host->host_no); @@ -2777,7 +2774,7 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int iotimeout) instance->reg_set) & MFI_STATE_MASK; } if (abs_state <= MFI_STATE_FW_INIT) { - printk(KERN_WARNING "megaraid_sas: firmware " + dev_warn(&instance->pdev->dev, "firmware " "state < MFI_STATE_FW_INIT, state = " "0x%x for scsi%d\n", abs_state, instance->host->host_no); @@ -2786,7 +2783,7 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int iotimeout) /* Wait for FW to become ready */ if (megasas_transition_to_ready(instance, 1)) { - printk(KERN_WARNING "megaraid_sas: Failed to " + dev_warn(&instance->pdev->dev, "Failed to " "transition controller to ready " "for scsi%d.\n", instance->host->host_no); @@ -2795,7 +2792,7 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int iotimeout) megasas_reset_reply_desc(instance); if (megasas_ioc_init_fusion(instance)) { - printk(KERN_WARNING "megaraid_sas: " + dev_warn(&instance->pdev->dev, "megasas_ioc_init_fusion() failed!" " for scsi%d\n", instance->host->host_no); @@ -2836,7 +2833,7 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int iotimeout) } /* Adapter reset completed successfully */ - printk(KERN_WARNING "megaraid_sas: Reset " + dev_warn(&instance->pdev->dev, "Reset " "successful for scsi%d.\n", instance->host->host_no); @@ -2852,7 +2849,7 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int iotimeout) goto out; } /* Reset failed, kill the adapter */ - printk(KERN_WARNING "megaraid_sas: Reset failed, killing " + dev_warn(&instance->pdev->dev, "Reset failed, killing " "adapter scsi%d.\n", instance->host->host_no); megaraid_sas_kill_hba(instance); instance->skip_heartbeat_timer_del = 1; diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c index 11248de92b3b..c167911221e9 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_base.c +++ b/drivers/scsi/mpt2sas/mpt2sas_base.c @@ -112,9 +112,12 @@ _scsih_set_fwfault_debug(const char *val, struct kernel_param *kp) if (ret) return ret; + /* global ioc spinlock to protect controller list on list operations */ printk(KERN_INFO "setting fwfault_debug(%d)\n", mpt2sas_fwfault_debug); + spin_lock(&gioc_lock); list_for_each_entry(ioc, &mpt2sas_ioc_list, list) ioc->fwfault_debug = mpt2sas_fwfault_debug; + spin_unlock(&gioc_lock); return 0; } @@ -1557,7 +1560,8 @@ mpt2sas_base_map_resources(struct MPT2SAS_ADAPTER *ioc) goto out_fail; } - for (i = 0, memap_sz = 0, pio_sz = 0 ; i < DEVICE_COUNT_RESOURCE; i++) { + for (i = 0, memap_sz = 0, pio_sz = 0; (i < DEVICE_COUNT_RESOURCE) && + (!memap_sz || !pio_sz); i++) { if (pci_resource_flags(pdev, i) & IORESOURCE_IO) { if (pio_sz) continue; @@ -1572,16 +1576,17 @@ mpt2sas_base_map_resources(struct MPT2SAS_ADAPTER *ioc) chip_phys = (u64)ioc->chip_phys; memap_sz = pci_resource_len(pdev, i); ioc->chip = ioremap(ioc->chip_phys, memap_sz); - if (ioc->chip == NULL) { - printk(MPT2SAS_ERR_FMT "unable to map " - "adapter memory!\n", ioc->name); - r = -EINVAL; - goto out_fail; - } } } } + if (ioc->chip == NULL) { + printk(MPT2SAS_ERR_FMT "unable to map adapter memory! " + "or resource not found\n", ioc->name); + r = -EINVAL; + goto out_fail; + } + _base_mask_interrupts(ioc); r = _base_get_ioc_facts(ioc, CAN_SLEEP); @@ -4435,6 +4440,8 @@ mpt2sas_base_free_resources(struct MPT2SAS_ADAPTER *ioc) dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__)); + /* synchronizing freeing resource with pci_access_mutex lock */ + mutex_lock(&ioc->pci_access_mutex); if (ioc->chip_phys && ioc->chip) { _base_mask_interrupts(ioc); ioc->shost_recovery = 1; @@ -4454,6 +4461,7 @@ mpt2sas_base_free_resources(struct MPT2SAS_ADAPTER *ioc) pci_disable_pcie_error_reporting(pdev); pci_disable_device(pdev); } + mutex_unlock(&ioc->pci_access_mutex); return; } diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.h b/drivers/scsi/mpt2sas/mpt2sas_base.h index caff8d10cca4..97ea360c6920 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_base.h +++ b/drivers/scsi/mpt2sas/mpt2sas_base.h @@ -238,6 +238,7 @@ * @flags: MPT_TARGET_FLAGS_XXX flags * @deleted: target flaged for deletion * @tm_busy: target is busy with TM request. + * @sdev: The sas_device associated with this target */ struct MPT2SAS_TARGET { struct scsi_target *starget; @@ -248,6 +249,7 @@ struct MPT2SAS_TARGET { u32 flags; u8 deleted; u8 tm_busy; + struct _sas_device *sdev; }; @@ -376,8 +378,24 @@ struct _sas_device { u8 phy; u8 responding; u8 pfa_led_on; + struct kref refcount; }; +static inline void sas_device_get(struct _sas_device *s) +{ + kref_get(&s->refcount); +} + +static inline void sas_device_free(struct kref *r) +{ + kfree(container_of(r, struct _sas_device, refcount)); +} + +static inline void sas_device_put(struct _sas_device *s) +{ + kref_put(&s->refcount, sas_device_free); +} + /** * struct _raid_device - raid volume link list * @list: sas device list @@ -799,6 +817,12 @@ typedef void (*MPT2SAS_FLUSH_RUNNING_CMDS)(struct MPT2SAS_ADAPTER *ioc); * @delayed_tr_list: target reset link list * @delayed_tr_volume_list: volume target reset link list * @@temp_sensors_count: flag to carry the number of temperature sensors + * @pci_access_mutex: Mutex to synchronize ioctl,sysfs show path and + * pci resource handling. PCI resource freeing will lead to free + * vital hardware/memory resource, which might be in use by cli/sysfs + * path functions resulting in Null pointer reference followed by kernel + * crash. To avoid the above race condition we use mutex syncrhonization + * which ensures the syncrhonization between cli/sysfs_show path */ struct MPT2SAS_ADAPTER { struct list_head list; @@ -1015,6 +1039,7 @@ struct MPT2SAS_ADAPTER { u8 mfg_pg10_hide_flag; u8 hide_drives; + struct mutex pci_access_mutex; }; typedef u8 (*MPT_CALLBACK)(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, @@ -1023,6 +1048,17 @@ typedef u8 (*MPT_CALLBACK)(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, /* base shared API */ extern struct list_head mpt2sas_ioc_list; +/* spinlock on list operations over IOCs + * Case: when multiple warpdrive cards(IOCs) are in use + * Each IOC will added to the ioc list stucture on initialization. + * Watchdog threads run at regular intervals to check IOC for any + * fault conditions which will trigger the dead_ioc thread to + * deallocate pci resource, resulting deleting the IOC netry from list, + * this deletion need to protected by spinlock to enusre that + * ioc removal is syncrhonized, if not synchronized it might lead to + * list_del corruption as the ioc list is traversed in cli path + */ +extern spinlock_t gioc_lock; void mpt2sas_base_start_watchdog(struct MPT2SAS_ADAPTER *ioc); void mpt2sas_base_stop_watchdog(struct MPT2SAS_ADAPTER *ioc); @@ -1095,11 +1131,12 @@ struct _sas_node *mpt2sas_scsih_expander_find_by_handle(struct MPT2SAS_ADAPTER * u16 handle); struct _sas_node *mpt2sas_scsih_expander_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc, u64 sas_address); -struct _sas_device *mpt2sas_scsih_sas_device_find_by_sas_address( +struct _sas_device *mpt2sas_get_sdev_by_addr( + struct MPT2SAS_ADAPTER *ioc, u64 sas_address); +struct _sas_device *__mpt2sas_get_sdev_by_addr( struct MPT2SAS_ADAPTER *ioc, u64 sas_address); void mpt2sas_port_enable_complete(struct MPT2SAS_ADAPTER *ioc); - void mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase); /* config shared API */ diff --git a/drivers/scsi/mpt2sas/mpt2sas_ctl.c b/drivers/scsi/mpt2sas/mpt2sas_ctl.c index 4e509604b571..3694b63bd993 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_ctl.c +++ b/drivers/scsi/mpt2sas/mpt2sas_ctl.c @@ -427,13 +427,16 @@ static int _ctl_verify_adapter(int ioc_number, struct MPT2SAS_ADAPTER **iocpp) { struct MPT2SAS_ADAPTER *ioc; - + /* global ioc lock to protect controller on list operations */ + spin_lock(&gioc_lock); list_for_each_entry(ioc, &mpt2sas_ioc_list, list) { if (ioc->id != ioc_number) continue; + spin_unlock(&gioc_lock); *iocpp = ioc; return ioc_number; } + spin_unlock(&gioc_lock); *iocpp = NULL; return -1; } @@ -522,10 +525,15 @@ _ctl_poll(struct file *filep, poll_table *wait) poll_wait(filep, &ctl_poll_wait, wait); + /* global ioc lock to protect controller on list operations */ + spin_lock(&gioc_lock); list_for_each_entry(ioc, &mpt2sas_ioc_list, list) { - if (ioc->aen_event_read_flag) + if (ioc->aen_event_read_flag) { + spin_unlock(&gioc_lock); return POLLIN | POLLRDNORM; + } } + spin_unlock(&gioc_lock); return 0; } @@ -2168,16 +2176,23 @@ _ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg, if (_ctl_verify_adapter(ioctl_header.ioc_number, &ioc) == -1 || !ioc) return -ENODEV; + /* pci_access_mutex lock acquired by ioctl path */ + mutex_lock(&ioc->pci_access_mutex); if (ioc->shost_recovery || ioc->pci_error_recovery || - ioc->is_driver_loading) - return -EAGAIN; + ioc->is_driver_loading || ioc->remove_host) { + ret = -EAGAIN; + goto out_unlock_pciaccess; + } state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING : BLOCKING; if (state == NON_BLOCKING) { - if (!mutex_trylock(&ioc->ctl_cmds.mutex)) - return -EAGAIN; + if (!mutex_trylock(&ioc->ctl_cmds.mutex)) { + ret = -EAGAIN; + goto out_unlock_pciaccess; + } } else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex)) { - return -ERESTARTSYS; + ret = -ERESTARTSYS; + goto out_unlock_pciaccess; } switch (cmd) { @@ -2258,6 +2273,8 @@ _ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg, } mutex_unlock(&ioc->ctl_cmds.mutex); +out_unlock_pciaccess: + mutex_unlock(&ioc->pci_access_mutex); return ret; } @@ -2711,6 +2728,12 @@ _ctl_BRM_status_show(struct device *cdev, struct device_attribute *attr, "warpdrive\n", ioc->name, __func__); goto out; } + /* pci_access_mutex lock acquired by sysfs show path */ + mutex_lock(&ioc->pci_access_mutex); + if (ioc->pci_error_recovery || ioc->remove_host) { + mutex_unlock(&ioc->pci_access_mutex); + return 0; + } /* allocate upto GPIOVal 36 entries */ sz = offsetof(Mpi2IOUnitPage3_t, GPIOVal) + (sizeof(u16) * 36); @@ -2749,6 +2772,7 @@ _ctl_BRM_status_show(struct device *cdev, struct device_attribute *attr, out: kfree(io_unit_pg3); + mutex_unlock(&ioc->pci_access_mutex); return rc; } static DEVICE_ATTR(BRM_status, S_IRUGO, _ctl_BRM_status_show, NULL); diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index 3f26147bbc64..0ad09b2bff9c 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -79,7 +79,8 @@ static int _scsih_scan_finished(struct Scsi_Host *shost, unsigned long time); /* global parameters */ LIST_HEAD(mpt2sas_ioc_list); - +/* global ioc lock for list operations */ +DEFINE_SPINLOCK(gioc_lock); /* local parameters */ static u8 scsi_io_cb_idx = -1; static u8 tm_cb_idx = -1; @@ -176,9 +177,37 @@ struct fw_event_work { u8 VP_ID; u8 ignore; u16 event; + struct kref refcount; char event_data[0] __aligned(4); }; +static void fw_event_work_free(struct kref *r) +{ + kfree(container_of(r, struct fw_event_work, refcount)); +} + +static void fw_event_work_get(struct fw_event_work *fw_work) +{ + kref_get(&fw_work->refcount); +} + +static void fw_event_work_put(struct fw_event_work *fw_work) +{ + kref_put(&fw_work->refcount, fw_event_work_free); +} + +static struct fw_event_work *alloc_fw_event_work(int len) +{ + struct fw_event_work *fw_event; + + fw_event = kzalloc(sizeof(*fw_event) + len, GFP_ATOMIC); + if (!fw_event) + return NULL; + + kref_init(&fw_event->refcount); + return fw_event; +} + /* raid transport support */ static struct raid_template *mpt2sas_raid_template; @@ -293,8 +322,10 @@ _scsih_set_debug_level(const char *val, struct kernel_param *kp) return ret; printk(KERN_INFO "setting logging_level(0x%08x)\n", logging_level); + spin_lock(&gioc_lock); list_for_each_entry(ioc, &mpt2sas_ioc_list, list) ioc->logging_level = logging_level; + spin_unlock(&gioc_lock); return 0; } module_param_call(logging_level, _scsih_set_debug_level, param_get_int, @@ -526,8 +557,61 @@ _scsih_determine_boot_device(struct MPT2SAS_ADAPTER *ioc, } } +static struct _sas_device * +__mpt2sas_get_sdev_from_target(struct MPT2SAS_ADAPTER *ioc, + struct MPT2SAS_TARGET *tgt_priv) +{ + struct _sas_device *ret; + + assert_spin_locked(&ioc->sas_device_lock); + + ret = tgt_priv->sdev; + if (ret) + sas_device_get(ret); + + return ret; +} + +static struct _sas_device * +mpt2sas_get_sdev_from_target(struct MPT2SAS_ADAPTER *ioc, + struct MPT2SAS_TARGET *tgt_priv) +{ + struct _sas_device *ret; + unsigned long flags; + + spin_lock_irqsave(&ioc->sas_device_lock, flags); + ret = __mpt2sas_get_sdev_from_target(ioc, tgt_priv); + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + + return ret; +} + + +struct _sas_device * +__mpt2sas_get_sdev_by_addr(struct MPT2SAS_ADAPTER *ioc, + u64 sas_address) +{ + struct _sas_device *sas_device; + + assert_spin_locked(&ioc->sas_device_lock); + + list_for_each_entry(sas_device, &ioc->sas_device_list, list) + if (sas_device->sas_address == sas_address) + goto found_device; + + list_for_each_entry(sas_device, &ioc->sas_device_init_list, list) + if (sas_device->sas_address == sas_address) + goto found_device; + + return NULL; + +found_device: + sas_device_get(sas_device); + return sas_device; +} + /** - * mpt2sas_scsih_sas_device_find_by_sas_address - sas device search + * mpt2sas_get_sdev_by_addr - sas device search * @ioc: per adapter object * @sas_address: sas address * Context: Calling function should acquire ioc->sas_device_lock @@ -536,24 +620,44 @@ _scsih_determine_boot_device(struct MPT2SAS_ADAPTER *ioc, * object. */ struct _sas_device * -mpt2sas_scsih_sas_device_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc, +mpt2sas_get_sdev_by_addr(struct MPT2SAS_ADAPTER *ioc, u64 sas_address) { struct _sas_device *sas_device; + unsigned long flags; + + spin_lock_irqsave(&ioc->sas_device_lock, flags); + sas_device = __mpt2sas_get_sdev_by_addr(ioc, + sas_address); + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + + return sas_device; +} + +static struct _sas_device * +__mpt2sas_get_sdev_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle) +{ + struct _sas_device *sas_device; + + assert_spin_locked(&ioc->sas_device_lock); list_for_each_entry(sas_device, &ioc->sas_device_list, list) - if (sas_device->sas_address == sas_address) - return sas_device; + if (sas_device->handle == handle) + goto found_device; list_for_each_entry(sas_device, &ioc->sas_device_init_list, list) - if (sas_device->sas_address == sas_address) - return sas_device; + if (sas_device->handle == handle) + goto found_device; return NULL; + +found_device: + sas_device_get(sas_device); + return sas_device; } /** - * _scsih_sas_device_find_by_handle - sas device search + * mpt2sas_get_sdev_by_handle - sas device search * @ioc: per adapter object * @handle: sas device handle (assigned by firmware) * Context: Calling function should acquire ioc->sas_device_lock @@ -562,19 +666,16 @@ mpt2sas_scsih_sas_device_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc, * object. */ static struct _sas_device * -_scsih_sas_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle) +mpt2sas_get_sdev_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle) { struct _sas_device *sas_device; + unsigned long flags; - list_for_each_entry(sas_device, &ioc->sas_device_list, list) - if (sas_device->handle == handle) - return sas_device; - - list_for_each_entry(sas_device, &ioc->sas_device_init_list, list) - if (sas_device->handle == handle) - return sas_device; + spin_lock_irqsave(&ioc->sas_device_lock, flags); + sas_device = __mpt2sas_get_sdev_by_handle(ioc, handle); + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); - return NULL; + return sas_device; } /** @@ -583,7 +684,7 @@ _scsih_sas_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle) * @sas_device: the sas_device object * Context: This function will acquire ioc->sas_device_lock. * - * Removing object and freeing associated memory from the ioc->sas_device_list. + * If sas_device is on the list, remove it and decrement its reference count. */ static void _scsih_sas_device_remove(struct MPT2SAS_ADAPTER *ioc, @@ -594,9 +695,15 @@ _scsih_sas_device_remove(struct MPT2SAS_ADAPTER *ioc, if (!sas_device) return; + /* + * The lock serializes access to the list, but we still need to verify + * that nobody removed the entry while we were waiting on the lock. + */ spin_lock_irqsave(&ioc->sas_device_lock, flags); - list_del(&sas_device->list); - kfree(sas_device); + if (!list_empty(&sas_device->list)) { + list_del_init(&sas_device->list); + sas_device_put(sas_device); + } spin_unlock_irqrestore(&ioc->sas_device_lock, flags); } @@ -620,6 +727,7 @@ _scsih_sas_device_add(struct MPT2SAS_ADAPTER *ioc, sas_device->handle, (unsigned long long)sas_device->sas_address)); spin_lock_irqsave(&ioc->sas_device_lock, flags); + sas_device_get(sas_device); list_add_tail(&sas_device->list, &ioc->sas_device_list); spin_unlock_irqrestore(&ioc->sas_device_lock, flags); @@ -659,6 +767,7 @@ _scsih_sas_device_init_add(struct MPT2SAS_ADAPTER *ioc, sas_device->handle, (unsigned long long)sas_device->sas_address)); spin_lock_irqsave(&ioc->sas_device_lock, flags); + sas_device_get(sas_device); list_add_tail(&sas_device->list, &ioc->sas_device_init_list); _scsih_determine_boot_device(ioc, sas_device, 0); spin_unlock_irqrestore(&ioc->sas_device_lock, flags); @@ -1208,12 +1317,15 @@ _scsih_change_queue_depth(struct scsi_device *sdev, int qdepth) goto not_sata; if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) goto not_sata; + spin_lock_irqsave(&ioc->sas_device_lock, flags); - sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, - sas_device_priv_data->sas_target->sas_address); - if (sas_device && sas_device->device_info & - MPI2_SAS_DEVICE_INFO_SATA_DEVICE) - max_depth = MPT2SAS_SATA_QUEUE_DEPTH; + sas_device = __mpt2sas_get_sdev_from_target(ioc, sas_target_priv_data); + if (sas_device) { + if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE) + max_depth = MPT2SAS_SATA_QUEUE_DEPTH; + + sas_device_put(sas_device); + } spin_unlock_irqrestore(&ioc->sas_device_lock, flags); not_sata: @@ -1271,18 +1383,20 @@ _scsih_target_alloc(struct scsi_target *starget) /* sas/sata devices */ spin_lock_irqsave(&ioc->sas_device_lock, flags); rphy = dev_to_rphy(starget->dev.parent); - sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, + sas_device = __mpt2sas_get_sdev_by_addr(ioc, rphy->identify.sas_address); if (sas_device) { sas_target_priv_data->handle = sas_device->handle; sas_target_priv_data->sas_address = sas_device->sas_address; + sas_target_priv_data->sdev = sas_device; sas_device->starget = starget; sas_device->id = starget->id; sas_device->channel = starget->channel; if (test_bit(sas_device->handle, ioc->pd_handles)) sas_target_priv_data->flags |= MPT_TARGET_FLAGS_RAID_COMPONENT; + } spin_unlock_irqrestore(&ioc->sas_device_lock, flags); @@ -1324,13 +1438,21 @@ _scsih_target_destroy(struct scsi_target *starget) spin_lock_irqsave(&ioc->sas_device_lock, flags); rphy = dev_to_rphy(starget->dev.parent); - sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, - rphy->identify.sas_address); + sas_device = __mpt2sas_get_sdev_from_target(ioc, sas_target_priv_data); if (sas_device && (sas_device->starget == starget) && (sas_device->id == starget->id) && (sas_device->channel == starget->channel)) sas_device->starget = NULL; + if (sas_device) { + /* + * Corresponding get() is in _scsih_target_alloc() + */ + sas_target_priv_data->sdev = NULL; + sas_device_put(sas_device); + + sas_device_put(sas_device); + } spin_unlock_irqrestore(&ioc->sas_device_lock, flags); out: @@ -1386,7 +1508,7 @@ _scsih_slave_alloc(struct scsi_device *sdev) if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) { spin_lock_irqsave(&ioc->sas_device_lock, flags); - sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, + sas_device = __mpt2sas_get_sdev_by_addr(ioc, sas_target_priv_data->sas_address); if (sas_device && (sas_device->starget == NULL)) { sdev_printk(KERN_INFO, sdev, @@ -1394,6 +1516,10 @@ _scsih_slave_alloc(struct scsi_device *sdev) __func__, __LINE__); sas_device->starget = starget; } + + if (sas_device) + sas_device_put(sas_device); + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); } @@ -1428,10 +1554,13 @@ _scsih_slave_destroy(struct scsi_device *sdev) if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) { spin_lock_irqsave(&ioc->sas_device_lock, flags); - sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, - sas_target_priv_data->sas_address); + sas_device = __mpt2sas_get_sdev_from_target(ioc, + sas_target_priv_data); if (sas_device && !sas_target_priv_data->num_luns) sas_device->starget = NULL; + + if (sas_device) + sas_device_put(sas_device); spin_unlock_irqrestore(&ioc->sas_device_lock, flags); } @@ -2078,7 +2207,7 @@ _scsih_slave_configure(struct scsi_device *sdev) } spin_lock_irqsave(&ioc->sas_device_lock, flags); - sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, + sas_device = __mpt2sas_get_sdev_by_addr(ioc, sas_device_priv_data->sas_target->sas_address); if (!sas_device) { spin_unlock_irqrestore(&ioc->sas_device_lock, flags); @@ -2112,17 +2241,18 @@ _scsih_slave_configure(struct scsi_device *sdev) (unsigned long long) sas_device->enclosure_logical_id, sas_device->slot); + sas_device_put(sas_device); spin_unlock_irqrestore(&ioc->sas_device_lock, flags); if (!ssp_target) _scsih_display_sata_capabilities(ioc, handle, sdev); - _scsih_change_queue_depth(sdev, qdepth); if (ssp_target) { sas_read_port_mode_page(sdev); _scsih_enable_tlr(ioc, sdev); } + return 0; } @@ -2509,8 +2639,7 @@ _scsih_tm_display_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd) device_str, (unsigned long long)priv_target->sas_address); } else { spin_lock_irqsave(&ioc->sas_device_lock, flags); - sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, - priv_target->sas_address); + sas_device = __mpt2sas_get_sdev_from_target(ioc, priv_target); if (sas_device) { if (priv_target->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) { @@ -2529,6 +2658,8 @@ _scsih_tm_display_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd) "enclosure_logical_id(0x%016llx), slot(%d)\n", (unsigned long long)sas_device->enclosure_logical_id, sas_device->slot); + + sas_device_put(sas_device); } spin_unlock_irqrestore(&ioc->sas_device_lock, flags); } @@ -2604,12 +2735,12 @@ _scsih_dev_reset(struct scsi_cmnd *scmd) { struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host); struct MPT2SAS_DEVICE *sas_device_priv_data; - struct _sas_device *sas_device; - unsigned long flags; + struct _sas_device *sas_device = NULL; u16 handle; int r; struct scsi_target *starget = scmd->device->sdev_target; + struct MPT2SAS_TARGET *target_priv_data = starget->hostdata; starget_printk(KERN_INFO, starget, "attempting device reset! " "scmd(%p)\n", scmd); @@ -2629,12 +2760,10 @@ _scsih_dev_reset(struct scsi_cmnd *scmd) handle = 0; if (sas_device_priv_data->sas_target->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) { - spin_lock_irqsave(&ioc->sas_device_lock, flags); - sas_device = _scsih_sas_device_find_by_handle(ioc, - sas_device_priv_data->sas_target->handle); + sas_device = mpt2sas_get_sdev_from_target(ioc, + target_priv_data); if (sas_device) handle = sas_device->volume_handle; - spin_unlock_irqrestore(&ioc->sas_device_lock, flags); } else handle = sas_device_priv_data->sas_target->handle; @@ -2651,6 +2780,10 @@ _scsih_dev_reset(struct scsi_cmnd *scmd) out: sdev_printk(KERN_INFO, scmd->device, "device reset: %s scmd(%p)\n", ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd); + + if (sas_device) + sas_device_put(sas_device); + return r; } @@ -2665,11 +2798,11 @@ _scsih_target_reset(struct scsi_cmnd *scmd) { struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host); struct MPT2SAS_DEVICE *sas_device_priv_data; - struct _sas_device *sas_device; - unsigned long flags; + struct _sas_device *sas_device = NULL; u16 handle; int r; struct scsi_target *starget = scmd->device->sdev_target; + struct MPT2SAS_TARGET *target_priv_data = starget->hostdata; starget_printk(KERN_INFO, starget, "attempting target reset! " "scmd(%p)\n", scmd); @@ -2689,12 +2822,10 @@ _scsih_target_reset(struct scsi_cmnd *scmd) handle = 0; if (sas_device_priv_data->sas_target->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) { - spin_lock_irqsave(&ioc->sas_device_lock, flags); - sas_device = _scsih_sas_device_find_by_handle(ioc, - sas_device_priv_data->sas_target->handle); + sas_device = mpt2sas_get_sdev_from_target(ioc, + target_priv_data); if (sas_device) handle = sas_device->volume_handle; - spin_unlock_irqrestore(&ioc->sas_device_lock, flags); } else handle = sas_device_priv_data->sas_target->handle; @@ -2711,6 +2842,10 @@ _scsih_target_reset(struct scsi_cmnd *scmd) out: starget_printk(KERN_INFO, starget, "target reset: %s scmd(%p)\n", ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd); + + if (sas_device) + sas_device_put(sas_device); + return r; } @@ -2768,36 +2903,39 @@ _scsih_fw_event_add(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work *fw_event) return; spin_lock_irqsave(&ioc->fw_event_lock, flags); + fw_event_work_get(fw_event); list_add_tail(&fw_event->list, &ioc->fw_event_list); INIT_DELAYED_WORK(&fw_event->delayed_work, _firmware_event_work); + fw_event_work_get(fw_event); queue_delayed_work(ioc->firmware_event_thread, &fw_event->delayed_work, 0); spin_unlock_irqrestore(&ioc->fw_event_lock, flags); } /** - * _scsih_fw_event_free - delete fw_event + * _scsih_fw_event_del_from_list - delete fw_event from the list * @ioc: per adapter object * @fw_event: object describing the event * Context: This function will acquire ioc->fw_event_lock. * - * This removes firmware event object from link list, frees associated memory. + * If the fw_event is on the fw_event_list, remove it and do a put. * * Return nothing. */ static void -_scsih_fw_event_free(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work +_scsih_fw_event_del_from_list(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work *fw_event) { unsigned long flags; spin_lock_irqsave(&ioc->fw_event_lock, flags); - list_del(&fw_event->list); - kfree(fw_event); + if (!list_empty(&fw_event->list)) { + list_del_init(&fw_event->list); + fw_event_work_put(fw_event); + } spin_unlock_irqrestore(&ioc->fw_event_lock, flags); } - /** * _scsih_error_recovery_delete_devices - remove devices not responding * @ioc: per adapter object @@ -2812,13 +2950,14 @@ _scsih_error_recovery_delete_devices(struct MPT2SAS_ADAPTER *ioc) if (ioc->is_driver_loading) return; - fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC); + fw_event = alloc_fw_event_work(0); if (!fw_event) return; fw_event->event = MPT2SAS_REMOVE_UNRESPONDING_DEVICES; fw_event->ioc = ioc; _scsih_fw_event_add(ioc, fw_event); + fw_event_work_put(fw_event); } /** @@ -2832,12 +2971,29 @@ mpt2sas_port_enable_complete(struct MPT2SAS_ADAPTER *ioc) { struct fw_event_work *fw_event; - fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC); + fw_event = alloc_fw_event_work(0); if (!fw_event) return; fw_event->event = MPT2SAS_PORT_ENABLE_COMPLETE; fw_event->ioc = ioc; _scsih_fw_event_add(ioc, fw_event); + fw_event_work_put(fw_event); +} + +static struct fw_event_work *dequeue_next_fw_event(struct MPT2SAS_ADAPTER *ioc) +{ + unsigned long flags; + struct fw_event_work *fw_event = NULL; + + spin_lock_irqsave(&ioc->fw_event_lock, flags); + if (!list_empty(&ioc->fw_event_list)) { + fw_event = list_first_entry(&ioc->fw_event_list, + struct fw_event_work, list); + list_del_init(&fw_event->list); + } + spin_unlock_irqrestore(&ioc->fw_event_lock, flags); + + return fw_event; } /** @@ -2852,17 +3008,25 @@ mpt2sas_port_enable_complete(struct MPT2SAS_ADAPTER *ioc) static void _scsih_fw_event_cleanup_queue(struct MPT2SAS_ADAPTER *ioc) { - struct fw_event_work *fw_event, *next; + struct fw_event_work *fw_event; if (list_empty(&ioc->fw_event_list) || !ioc->firmware_event_thread || in_interrupt()) return; - list_for_each_entry_safe(fw_event, next, &ioc->fw_event_list, list) { - if (cancel_delayed_work_sync(&fw_event->delayed_work)) { - _scsih_fw_event_free(ioc, fw_event); - continue; - } + while ((fw_event = dequeue_next_fw_event(ioc))) { + /* + * Wait on the fw_event to complete. If this returns 1, then + * the event was never executed, and we need a put for the + * reference the delayed_work had on the fw_event. + * + * If it did execute, we wait for it to finish, and the put will + * happen from _firmware_event_work() + */ + if (cancel_delayed_work_sync(&fw_event->delayed_work)) + fw_event_work_put(fw_event); + + fw_event_work_put(fw_event); } } @@ -3002,15 +3166,15 @@ _scsih_block_io_to_children_attached_to_ex(struct MPT2SAS_ADAPTER *ioc, list_for_each_entry(mpt2sas_port, &sas_expander->sas_port_list, port_list) { - if (mpt2sas_port->remote_identify.device_type == - SAS_END_DEVICE) { + if (mpt2sas_port->remote_identify.device_type == SAS_END_DEVICE) { spin_lock_irqsave(&ioc->sas_device_lock, flags); - sas_device = - mpt2sas_scsih_sas_device_find_by_sas_address(ioc, - mpt2sas_port->remote_identify.sas_address); - if (sas_device) + sas_device = __mpt2sas_get_sdev_by_addr(ioc, + mpt2sas_port->remote_identify.sas_address); + if (sas_device) { set_bit(sas_device->handle, - ioc->blocking_handles); + ioc->blocking_handles); + sas_device_put(sas_device); + } spin_unlock_irqrestore(&ioc->sas_device_lock, flags); } } @@ -3080,7 +3244,7 @@ _scsih_tm_tr_send(struct MPT2SAS_ADAPTER *ioc, u16 handle) { Mpi2SCSITaskManagementRequest_t *mpi_request; u16 smid; - struct _sas_device *sas_device; + struct _sas_device *sas_device = NULL; struct MPT2SAS_TARGET *sas_target_priv_data = NULL; u64 sas_address = 0; unsigned long flags; @@ -3110,7 +3274,7 @@ _scsih_tm_tr_send(struct MPT2SAS_ADAPTER *ioc, u16 handle) return; spin_lock_irqsave(&ioc->sas_device_lock, flags); - sas_device = _scsih_sas_device_find_by_handle(ioc, handle); + sas_device = __mpt2sas_get_sdev_by_handle(ioc, handle); if (sas_device && sas_device->starget && sas_device->starget->hostdata) { sas_target_priv_data = sas_device->starget->hostdata; @@ -3131,14 +3295,14 @@ _scsih_tm_tr_send(struct MPT2SAS_ADAPTER *ioc, u16 handle) if (!smid) { delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC); if (!delayed_tr) - return; + goto out; INIT_LIST_HEAD(&delayed_tr->list); delayed_tr->handle = handle; list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list); dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "DELAYED:tr:handle(0x%04x), (open)\n", ioc->name, handle)); - return; + goto out; } dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "tr_send:handle(0x%04x), " @@ -3150,6 +3314,9 @@ _scsih_tm_tr_send(struct MPT2SAS_ADAPTER *ioc, u16 handle) mpi_request->DevHandle = cpu_to_le16(handle); mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET; mpt2sas_base_put_smid_hi_priority(ioc, smid); +out: + if (sas_device) + sas_device_put(sas_device); } @@ -4068,7 +4235,6 @@ _scsih_scsi_ioc_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd, char *desc_scsi_state = ioc->tmp_string; u32 log_info = le32_to_cpu(mpi_reply->IOCLogInfo); struct _sas_device *sas_device = NULL; - unsigned long flags; struct scsi_target *starget = scmd->device->sdev_target; struct MPT2SAS_TARGET *priv_target = starget->hostdata; char *device_str = NULL; @@ -4200,9 +4366,7 @@ _scsih_scsi_ioc_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd, printk(MPT2SAS_WARN_FMT "\t%s wwid(0x%016llx)\n", ioc->name, device_str, (unsigned long long)priv_target->sas_address); } else { - spin_lock_irqsave(&ioc->sas_device_lock, flags); - sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, - priv_target->sas_address); + sas_device = mpt2sas_get_sdev_from_target(ioc, priv_target); if (sas_device) { printk(MPT2SAS_WARN_FMT "\tsas_address(0x%016llx), " "phy(%d)\n", ioc->name, sas_device->sas_address, @@ -4211,8 +4375,9 @@ _scsih_scsi_ioc_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd, "\tenclosure_logical_id(0x%016llx), slot(%d)\n", ioc->name, sas_device->enclosure_logical_id, sas_device->slot); + + sas_device_put(sas_device); } - spin_unlock_irqrestore(&ioc->sas_device_lock, flags); } printk(MPT2SAS_WARN_FMT "\thandle(0x%04x), ioc_status(%s)(0x%04x), " @@ -4259,7 +4424,7 @@ _scsih_turn_on_pfa_led(struct MPT2SAS_ADAPTER *ioc, u16 handle) Mpi2SepRequest_t mpi_request; struct _sas_device *sas_device; - sas_device = _scsih_sas_device_find_by_handle(ioc, handle); + sas_device = mpt2sas_get_sdev_by_handle(ioc, handle); if (!sas_device) return; @@ -4274,7 +4439,7 @@ _scsih_turn_on_pfa_led(struct MPT2SAS_ADAPTER *ioc, u16 handle) &mpi_request)) != 0) { printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__, __func__); - return; + goto out; } sas_device->pfa_led_on = 1; @@ -4284,8 +4449,10 @@ _scsih_turn_on_pfa_led(struct MPT2SAS_ADAPTER *ioc, u16 handle) "enclosure_processor: ioc_status (0x%04x), loginfo(0x%08x)\n", ioc->name, le16_to_cpu(mpi_reply.IOCStatus), le32_to_cpu(mpi_reply.IOCLogInfo))); - return; + goto out; } +out: + sas_device_put(sas_device); } /** @@ -4340,13 +4507,14 @@ _scsih_send_event_to_turn_on_pfa_led(struct MPT2SAS_ADAPTER *ioc, u16 handle) { struct fw_event_work *fw_event; - fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC); + fw_event = alloc_fw_event_work(0); if (!fw_event) return; fw_event->event = MPT2SAS_TURN_ON_PFA_LED; fw_event->device_handle = handle; fw_event->ioc = ioc; _scsih_fw_event_add(ioc, fw_event); + fw_event_work_put(fw_event); } /** @@ -4370,19 +4538,17 @@ _scsih_smart_predicted_fault(struct MPT2SAS_ADAPTER *ioc, u16 handle) /* only handle non-raid devices */ spin_lock_irqsave(&ioc->sas_device_lock, flags); - sas_device = _scsih_sas_device_find_by_handle(ioc, handle); + sas_device = __mpt2sas_get_sdev_by_handle(ioc, handle); if (!sas_device) { - spin_unlock_irqrestore(&ioc->sas_device_lock, flags); - return; + goto out_unlock; } starget = sas_device->starget; sas_target_priv_data = starget->hostdata; if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) || - ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))) { - spin_unlock_irqrestore(&ioc->sas_device_lock, flags); - return; - } + ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))) + goto out_unlock; + starget_printk(KERN_WARNING, starget, "predicted fault\n"); spin_unlock_irqrestore(&ioc->sas_device_lock, flags); @@ -4396,7 +4562,7 @@ _scsih_smart_predicted_fault(struct MPT2SAS_ADAPTER *ioc, u16 handle) if (!event_reply) { printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__, __func__); - return; + goto out; } event_reply->Function = MPI2_FUNCTION_EVENT_NOTIFICATION; @@ -4413,6 +4579,14 @@ _scsih_smart_predicted_fault(struct MPT2SAS_ADAPTER *ioc, u16 handle) event_data->SASAddress = cpu_to_le64(sas_target_priv_data->sas_address); mpt2sas_ctl_add_to_event_log(ioc, event_reply); kfree(event_reply); +out: + if (sas_device) + sas_device_put(sas_device); + return; + +out_unlock: + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + goto out; } /** @@ -5148,14 +5322,13 @@ _scsih_check_device(struct MPT2SAS_ADAPTER *ioc, u16 handle) spin_lock_irqsave(&ioc->sas_device_lock, flags); sas_address = le64_to_cpu(sas_device_pg0.SASAddress); - sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, + sas_device = __mpt2sas_get_sdev_by_addr(ioc, sas_address); if (!sas_device) { printk(MPT2SAS_ERR_FMT "device is not present " "handle(0x%04x), no sas_device!!!\n", ioc->name, handle); - spin_unlock_irqrestore(&ioc->sas_device_lock, flags); - return; + goto out_unlock; } if (unlikely(sas_device->handle != handle)) { @@ -5172,19 +5345,24 @@ _scsih_check_device(struct MPT2SAS_ADAPTER *ioc, u16 handle) MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) { printk(MPT2SAS_ERR_FMT "device is not present " "handle(0x%04x), flags!!!\n", ioc->name, handle); - spin_unlock_irqrestore(&ioc->sas_device_lock, flags); - return; + goto out_unlock; } /* check if there were any issues with discovery */ if (_scsih_check_access_status(ioc, sas_address, handle, - sas_device_pg0.AccessStatus)) { - spin_unlock_irqrestore(&ioc->sas_device_lock, flags); - return; - } + sas_device_pg0.AccessStatus)) + goto out_unlock; + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); _scsih_ublock_io_device(ioc, sas_address); + if (sas_device) + sas_device_put(sas_device); + return; +out_unlock: + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + if (sas_device) + sas_device_put(sas_device); } /** @@ -5208,7 +5386,6 @@ _scsih_add_device(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 phy_num, u8 is_pd) u32 ioc_status; __le64 sas_address; u32 device_info; - unsigned long flags; if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) { @@ -5250,14 +5427,13 @@ _scsih_add_device(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 phy_num, u8 is_pd) return -1; } - - spin_lock_irqsave(&ioc->sas_device_lock, flags); - sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, + sas_device = mpt2sas_get_sdev_by_addr(ioc, sas_address); - spin_unlock_irqrestore(&ioc->sas_device_lock, flags); - if (sas_device) + if (sas_device) { + sas_device_put(sas_device); return 0; + } sas_device = kzalloc(sizeof(struct _sas_device), GFP_KERNEL); @@ -5267,6 +5443,7 @@ _scsih_add_device(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 phy_num, u8 is_pd) return -1; } + kref_init(&sas_device->refcount); sas_device->handle = handle; if (_scsih_get_sas_address(ioc, le16_to_cpu (sas_device_pg0.ParentDevHandle), @@ -5296,6 +5473,7 @@ _scsih_add_device(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 phy_num, u8 is_pd) else _scsih_sas_device_add(ioc, sas_device); + sas_device_put(sas_device); return 0; } @@ -5344,7 +5522,6 @@ _scsih_remove_device(struct MPT2SAS_ADAPTER *ioc, "handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__, sas_device->handle, (unsigned long long) sas_device->sas_address)); - kfree(sas_device); } /** * _scsih_device_remove_by_handle - removing device object by handle @@ -5363,12 +5540,17 @@ _scsih_device_remove_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle) return; spin_lock_irqsave(&ioc->sas_device_lock, flags); - sas_device = _scsih_sas_device_find_by_handle(ioc, handle); - if (sas_device) - list_del(&sas_device->list); + sas_device = __mpt2sas_get_sdev_by_handle(ioc, handle); + if (sas_device) { + list_del_init(&sas_device->list); + sas_device_put(sas_device); + } spin_unlock_irqrestore(&ioc->sas_device_lock, flags); - if (sas_device) + + if (sas_device) { _scsih_remove_device(ioc, sas_device); + sas_device_put(sas_device); + } } /** @@ -5389,13 +5571,17 @@ mpt2sas_device_remove_by_sas_address(struct MPT2SAS_ADAPTER *ioc, return; spin_lock_irqsave(&ioc->sas_device_lock, flags); - sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, - sas_address); - if (sas_device) - list_del(&sas_device->list); + sas_device = __mpt2sas_get_sdev_by_addr(ioc, sas_address); + if (sas_device) { + list_del_init(&sas_device->list); + sas_device_put(sas_device); + } spin_unlock_irqrestore(&ioc->sas_device_lock, flags); - if (sas_device) + + if (sas_device) { _scsih_remove_device(ioc, sas_device); + sas_device_put(sas_device); + } } #ifdef CONFIG_SCSI_MPT2SAS_LOGGING /** @@ -5716,26 +5902,28 @@ _scsih_sas_device_status_change_event(struct MPT2SAS_ADAPTER *ioc, spin_lock_irqsave(&ioc->sas_device_lock, flags); sas_address = le64_to_cpu(event_data->SASAddress); - sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, + sas_device = __mpt2sas_get_sdev_by_addr(ioc, sas_address); - if (!sas_device || !sas_device->starget) { - spin_unlock_irqrestore(&ioc->sas_device_lock, flags); - return; - } + if (!sas_device || !sas_device->starget) + goto out; target_priv_data = sas_device->starget->hostdata; - if (!target_priv_data) { - spin_unlock_irqrestore(&ioc->sas_device_lock, flags); - return; - } + if (!target_priv_data) + goto out; if (event_data->ReasonCode == MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET) target_priv_data->tm_busy = 1; else target_priv_data->tm_busy = 0; + +out: + if (sas_device) + sas_device_put(sas_device); + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + } #ifdef CONFIG_SCSI_MPT2SAS_LOGGING @@ -6123,7 +6311,7 @@ _scsih_sas_pd_expose(struct MPT2SAS_ADAPTER *ioc, u16 handle = le16_to_cpu(element->PhysDiskDevHandle); spin_lock_irqsave(&ioc->sas_device_lock, flags); - sas_device = _scsih_sas_device_find_by_handle(ioc, handle); + sas_device = __mpt2sas_get_sdev_by_handle(ioc, handle); if (sas_device) { sas_device->volume_handle = 0; sas_device->volume_wwid = 0; @@ -6142,6 +6330,8 @@ _scsih_sas_pd_expose(struct MPT2SAS_ADAPTER *ioc, /* exposing raid component */ if (starget) starget_for_each_device(starget, NULL, _scsih_reprobe_lun); + + sas_device_put(sas_device); } /** @@ -6170,7 +6360,7 @@ _scsih_sas_pd_hide(struct MPT2SAS_ADAPTER *ioc, &volume_wwid); spin_lock_irqsave(&ioc->sas_device_lock, flags); - sas_device = _scsih_sas_device_find_by_handle(ioc, handle); + sas_device = __mpt2sas_get_sdev_by_handle(ioc, handle); if (sas_device) { set_bit(handle, ioc->pd_handles); if (sas_device->starget && sas_device->starget->hostdata) { @@ -6189,6 +6379,8 @@ _scsih_sas_pd_hide(struct MPT2SAS_ADAPTER *ioc, /* hiding raid component */ if (starget) starget_for_each_device(starget, (void *)1, _scsih_reprobe_lun); + + sas_device_put(sas_device); } /** @@ -6221,7 +6413,6 @@ _scsih_sas_pd_add(struct MPT2SAS_ADAPTER *ioc, Mpi2EventIrConfigElement_t *element) { struct _sas_device *sas_device; - unsigned long flags; u16 handle = le16_to_cpu(element->PhysDiskDevHandle); Mpi2ConfigReply_t mpi_reply; Mpi2SasDevicePage0_t sas_device_pg0; @@ -6231,11 +6422,11 @@ _scsih_sas_pd_add(struct MPT2SAS_ADAPTER *ioc, set_bit(handle, ioc->pd_handles); - spin_lock_irqsave(&ioc->sas_device_lock, flags); - sas_device = _scsih_sas_device_find_by_handle(ioc, handle); - spin_unlock_irqrestore(&ioc->sas_device_lock, flags); - if (sas_device) + sas_device = mpt2sas_get_sdev_by_handle(ioc, handle); + if (sas_device) { + sas_device_put(sas_device); return; + } if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) { @@ -6509,7 +6700,6 @@ _scsih_sas_ir_physical_disk_event(struct MPT2SAS_ADAPTER *ioc, u16 handle, parent_handle; u32 state; struct _sas_device *sas_device; - unsigned long flags; Mpi2ConfigReply_t mpi_reply; Mpi2SasDevicePage0_t sas_device_pg0; u32 ioc_status; @@ -6542,12 +6732,11 @@ _scsih_sas_ir_physical_disk_event(struct MPT2SAS_ADAPTER *ioc, if (!ioc->is_warpdrive) set_bit(handle, ioc->pd_handles); - spin_lock_irqsave(&ioc->sas_device_lock, flags); - sas_device = _scsih_sas_device_find_by_handle(ioc, handle); - spin_unlock_irqrestore(&ioc->sas_device_lock, flags); - - if (sas_device) + sas_device = mpt2sas_get_sdev_by_handle(ioc, handle); + if (sas_device) { + sas_device_put(sas_device); return; + } if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, @@ -7015,6 +7204,7 @@ _scsih_remove_unresponding_sas_devices(struct MPT2SAS_ADAPTER *ioc) struct _raid_device *raid_device, *raid_device_next; struct list_head tmp_list; unsigned long flags; + LIST_HEAD(head); printk(MPT2SAS_INFO_FMT "removing unresponding devices: start\n", ioc->name); @@ -7022,14 +7212,29 @@ _scsih_remove_unresponding_sas_devices(struct MPT2SAS_ADAPTER *ioc) /* removing unresponding end devices */ printk(MPT2SAS_INFO_FMT "removing unresponding devices: end-devices\n", ioc->name); + + /* + * Iterate, pulling off devices marked as non-responding. We become the + * owner for the reference the list had on any object we prune. + */ + spin_lock_irqsave(&ioc->sas_device_lock, flags); list_for_each_entry_safe(sas_device, sas_device_next, - &ioc->sas_device_list, list) { + &ioc->sas_device_list, list) { if (!sas_device->responding) - mpt2sas_device_remove_by_sas_address(ioc, - sas_device->sas_address); + list_move_tail(&sas_device->list, &head); else sas_device->responding = 0; } + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + + /* + * Now, uninitialize and remove the unresponding devices we pruned. + */ + list_for_each_entry_safe(sas_device, sas_device_next, &head, list) { + _scsih_remove_device(ioc, sas_device); + list_del_init(&sas_device->list); + sas_device_put(sas_device); + } /* removing unresponding volumes */ if (ioc->ir_firmware) { @@ -7179,11 +7384,11 @@ _scsih_scan_for_devices_after_reset(struct MPT2SAS_ADAPTER *ioc) } phys_disk_num = pd_pg0.PhysDiskNum; handle = le16_to_cpu(pd_pg0.DevHandle); - spin_lock_irqsave(&ioc->sas_device_lock, flags); - sas_device = _scsih_sas_device_find_by_handle(ioc, handle); - spin_unlock_irqrestore(&ioc->sas_device_lock, flags); - if (sas_device) + sas_device = mpt2sas_get_sdev_by_handle(ioc, handle); + if (sas_device) { + sas_device_put(sas_device); continue; + } if (mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle) != 0) @@ -7302,12 +7507,12 @@ _scsih_scan_for_devices_after_reset(struct MPT2SAS_ADAPTER *ioc) if (!(_scsih_is_end_device( le32_to_cpu(sas_device_pg0.DeviceInfo)))) continue; - spin_lock_irqsave(&ioc->sas_device_lock, flags); - sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, + sas_device = mpt2sas_get_sdev_by_addr(ioc, le64_to_cpu(sas_device_pg0.SASAddress)); - spin_unlock_irqrestore(&ioc->sas_device_lock, flags); - if (sas_device) + if (sas_device) { + sas_device_put(sas_device); continue; + } parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle); if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address)) { printk(MPT2SAS_INFO_FMT "\tBEFORE adding end device: " @@ -7410,17 +7615,27 @@ _firmware_event_work(struct work_struct *work) struct fw_event_work, delayed_work.work); struct MPT2SAS_ADAPTER *ioc = fw_event->ioc; + _scsih_fw_event_del_from_list(ioc, fw_event); + /* the queue is being flushed so ignore this event */ - if (ioc->remove_host || - ioc->pci_error_recovery) { - _scsih_fw_event_free(ioc, fw_event); + if (ioc->remove_host || ioc->pci_error_recovery) { + fw_event_work_put(fw_event); return; } switch (fw_event->event) { case MPT2SAS_REMOVE_UNRESPONDING_DEVICES: - while (scsi_host_in_recovery(ioc->shost) || ioc->shost_recovery) + while (scsi_host_in_recovery(ioc->shost) || + ioc->shost_recovery) { + /* + * If we're unloading, bail. Otherwise, this can become + * an infinite loop. + */ + if (ioc->remove_host) + goto out; + ssleep(1); + } _scsih_remove_unresponding_sas_devices(ioc); _scsih_scan_for_devices_after_reset(ioc); break; @@ -7469,7 +7684,8 @@ _firmware_event_work(struct work_struct *work) _scsih_sas_ir_operation_status_event(ioc, fw_event); break; } - _scsih_fw_event_free(ioc, fw_event); +out: + fw_event_work_put(fw_event); } /** @@ -7607,7 +7823,7 @@ mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index, } sz = le16_to_cpu(mpi_reply->EventDataLength) * 4; - fw_event = kzalloc(sizeof(*fw_event) + sz, GFP_ATOMIC); + fw_event = alloc_fw_event_work(sz); if (!fw_event) { printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__, __func__); @@ -7620,6 +7836,7 @@ mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index, fw_event->VP_ID = mpi_reply->VP_ID; fw_event->event = event; _scsih_fw_event_add(ioc, fw_event); + fw_event_work_put(fw_event); return; } @@ -7867,7 +8084,9 @@ _scsih_remove(struct pci_dev *pdev) sas_remove_host(shost); scsi_remove_host(shost); mpt2sas_base_detach(ioc); + spin_lock(&gioc_lock); list_del(&ioc->list); + spin_unlock(&gioc_lock); scsi_host_put(shost); } @@ -7966,6 +8185,48 @@ _scsih_probe_raid(struct MPT2SAS_ADAPTER *ioc) } } +static struct _sas_device *get_next_sas_device(struct MPT2SAS_ADAPTER *ioc) +{ + struct _sas_device *sas_device = NULL; + unsigned long flags; + + spin_lock_irqsave(&ioc->sas_device_lock, flags); + if (!list_empty(&ioc->sas_device_init_list)) { + sas_device = list_first_entry(&ioc->sas_device_init_list, + struct _sas_device, list); + sas_device_get(sas_device); + } + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + + return sas_device; +} + +static void sas_device_make_active(struct MPT2SAS_ADAPTER *ioc, + struct _sas_device *sas_device) +{ + unsigned long flags; + + spin_lock_irqsave(&ioc->sas_device_lock, flags); + + /* + * Since we dropped the lock during the call to port_add(), we need to + * be careful here that somebody else didn't move or delete this item + * while we were busy with other things. + * + * If it was on the list, we need a put() for the reference the list + * had. Either way, we need a get() for the destination list. + */ + if (!list_empty(&sas_device->list)) { + list_del_init(&sas_device->list); + sas_device_put(sas_device); + } + + sas_device_get(sas_device); + list_add_tail(&sas_device->list, &ioc->sas_device_list); + + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); +} + /** * _scsih_probe_sas - reporting sas devices to sas transport * @ioc: per adapter object @@ -7975,34 +8236,30 @@ _scsih_probe_raid(struct MPT2SAS_ADAPTER *ioc) static void _scsih_probe_sas(struct MPT2SAS_ADAPTER *ioc) { - struct _sas_device *sas_device, *next; - unsigned long flags; - - /* SAS Device List */ - list_for_each_entry_safe(sas_device, next, &ioc->sas_device_init_list, - list) { + struct _sas_device *sas_device; - if (ioc->hide_drives) - continue; + if (ioc->hide_drives) + return; + while ((sas_device = get_next_sas_device(ioc))) { if (!mpt2sas_transport_port_add(ioc, sas_device->handle, - sas_device->sas_address_parent)) { - list_del(&sas_device->list); - kfree(sas_device); + sas_device->sas_address_parent)) { + _scsih_sas_device_remove(ioc, sas_device); + sas_device_put(sas_device); continue; } else if (!sas_device->starget) { if (!ioc->is_driver_loading) { mpt2sas_transport_port_remove(ioc, - sas_device->sas_address, - sas_device->sas_address_parent); - list_del(&sas_device->list); - kfree(sas_device); + sas_device->sas_address, + sas_device->sas_address_parent); + _scsih_sas_device_remove(ioc, sas_device); + sas_device_put(sas_device); continue; } } - spin_lock_irqsave(&ioc->sas_device_lock, flags); - list_move_tail(&sas_device->list, &ioc->sas_device_list); - spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + + sas_device_make_active(ioc, sas_device); + sas_device_put(sas_device); } } @@ -8142,7 +8399,9 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id) ioc = shost_priv(shost); memset(ioc, 0, sizeof(struct MPT2SAS_ADAPTER)); INIT_LIST_HEAD(&ioc->list); + spin_lock(&gioc_lock); list_add_tail(&ioc->list, &mpt2sas_ioc_list); + spin_unlock(&gioc_lock); ioc->shost = shost; ioc->id = mpt_ids++; sprintf(ioc->name, "%s%d", MPT2SAS_DRIVER_NAME, ioc->id); @@ -8167,6 +8426,8 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id) ioc->schedule_dead_ioc_flush_running_cmds = &_scsih_flush_running_cmds; /* misc semaphores and spin locks */ mutex_init(&ioc->reset_in_progress_mutex); + /* initializing pci_access_mutex lock */ + mutex_init(&ioc->pci_access_mutex); spin_lock_init(&ioc->ioc_reset_in_progress_lock); spin_lock_init(&ioc->scsi_lookup_lock); spin_lock_init(&ioc->sas_device_lock); @@ -8269,7 +8530,9 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id) out_attach_fail: destroy_workqueue(ioc->firmware_event_thread); out_thread_fail: + spin_lock(&gioc_lock); list_del(&ioc->list); + spin_unlock(&gioc_lock); scsi_host_put(shost); return rv; } diff --git a/drivers/scsi/mpt2sas/mpt2sas_transport.c b/drivers/scsi/mpt2sas/mpt2sas_transport.c index ff2500ab9ba4..af868009395d 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_transport.c +++ b/drivers/scsi/mpt2sas/mpt2sas_transport.c @@ -1323,15 +1323,17 @@ _transport_get_enclosure_identifier(struct sas_rphy *rphy, u64 *identifier) int rc; spin_lock_irqsave(&ioc->sas_device_lock, flags); - sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, + sas_device = __mpt2sas_get_sdev_by_addr(ioc, rphy->identify.sas_address); if (sas_device) { *identifier = sas_device->enclosure_logical_id; rc = 0; + sas_device_put(sas_device); } else { *identifier = 0; rc = -ENXIO; } + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); return rc; } @@ -1351,12 +1353,14 @@ _transport_get_bay_identifier(struct sas_rphy *rphy) int rc; spin_lock_irqsave(&ioc->sas_device_lock, flags); - sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, + sas_device = __mpt2sas_get_sdev_by_addr(ioc, rphy->identify.sas_address); - if (sas_device) + if (sas_device) { rc = sas_device->slot; - else + sas_device_put(sas_device); + } else { rc = -ENXIO; + } spin_unlock_irqrestore(&ioc->sas_device_lock, flags); return rc; } diff --git a/drivers/scsi/mpt3sas/mpi/mpi2.h b/drivers/scsi/mpt3sas/mpi/mpi2.h index c34c1157907b..ec27ad2d186f 100644 --- a/drivers/scsi/mpt3sas/mpi/mpi2.h +++ b/drivers/scsi/mpt3sas/mpi/mpi2.h @@ -8,7 +8,7 @@ * scatter/gather formats. * Creation Date: June 21, 2006 * - * mpi2.h Version: 02.00.31 + * mpi2.h Version: 02.00.35 * * NOTE: Names (typedefs, defines, etc.) beginning with an MPI25 or Mpi25 * prefix are for use only on MPI v2.5 products, and must not be used @@ -88,6 +88,10 @@ * Added MPI25_SUP_REPLY_POST_HOST_INDEX_OFFSET. * 04-09-13 02.00.30 Bumped MPI2_HEADER_VERSION_UNIT. * 04-17-13 02.00.31 Bumped MPI2_HEADER_VERSION_UNIT. + * 08-19-13 02.00.32 Bumped MPI2_HEADER_VERSION_UNIT. + * 12-05-13 02.00.33 Bumped MPI2_HEADER_VERSION_UNIT. + * 01-08-14 02.00.34 Bumped MPI2_HEADER_VERSION_UNIT + * 06-13-14 02.00.35 Bumped MPI2_HEADER_VERSION_UNIT. * -------------------------------------------------------------------------- */ @@ -121,7 +125,7 @@ #define MPI2_VERSION_02_05 (0x0205) /*Unit and Dev versioning for this MPI header set */ -#define MPI2_HEADER_VERSION_UNIT (0x1F) +#define MPI2_HEADER_VERSION_UNIT (0x23) #define MPI2_HEADER_VERSION_DEV (0x00) #define MPI2_HEADER_VERSION_UNIT_MASK (0xFF00) #define MPI2_HEADER_VERSION_UNIT_SHIFT (8) diff --git a/drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h b/drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h index e261a3153bb3..581fdb375db5 100644 --- a/drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h +++ b/drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h @@ -6,7 +6,7 @@ * Title: MPI Configuration messages and pages * Creation Date: November 10, 2006 * - * mpi2_cnfg.h Version: 02.00.26 + * mpi2_cnfg.h Version: 02.00.29 * * NOTE: Names (typedefs, defines, etc.) beginning with an MPI25 or Mpi25 * prefix are for use only on MPI v2.5 products, and must not be used @@ -165,6 +165,20 @@ * match the specification. * 08-19-13 02.00.26 Added reserved words to MPI2_CONFIG_PAGE_IO_UNIT_7 for * future use. + * 12-05-13 02.00.27 Added MPI2_MANPAGE7_FLAG_BASE_ENCLOSURE_LEVEL for + * MPI2_CONFIG_PAGE_MAN_7. + * Added EnclosureLevel and ConnectorName fields to + * MPI2_CONFIG_PAGE_SAS_DEV_0. + * Added MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID for + * MPI2_CONFIG_PAGE_SAS_DEV_0. + * Added EnclosureLevel field to + * MPI2_CONFIG_PAGE_SAS_ENCLOSURE_0. + * Added MPI2_SAS_ENCLS0_FLAGS_ENCL_LEVEL_VALID for + * MPI2_CONFIG_PAGE_SAS_ENCLOSURE_0. + * 01-08-14 02.00.28 Added more defines for the BiosOptions field of + * MPI2_CONFIG_PAGE_BIOS_1. + * 06-13-14 02.00.29 Added SSUTimeout field to MPI2_CONFIG_PAGE_BIOS_1, and + * more defines for the BiosOptions field.. * -------------------------------------------------------------------------- */ @@ -724,6 +738,7 @@ typedef struct _MPI2_CONFIG_PAGE_MAN_7 { #define MPI2_MANUFACTURING7_PAGEVERSION (0x01) /*defines for the Flags field */ +#define MPI2_MANPAGE7_FLAG_BASE_ENCLOSURE_LEVEL (0x00000008) #define MPI2_MANPAGE7_FLAG_EVENTREPLAY_SLOT_ORDER (0x00000002) #define MPI2_MANPAGE7_FLAG_USE_SLOT_INFO (0x00000001) @@ -1311,7 +1326,9 @@ typedef struct _MPI2_CONFIG_PAGE_BIOS_1 { MPI2_CONFIG_PAGE_HEADER Header; /*0x00 */ U32 BiosOptions; /*0x04 */ U32 IOCSettings; /*0x08 */ - U32 Reserved1; /*0x0C */ + U8 SSUTimeout; /*0x0C */ + U8 Reserved1; /*0x0D */ + U16 Reserved2; /*0x0E */ U32 DeviceSettings; /*0x10 */ U16 NumberOfDevices; /*0x14 */ U16 UEFIVersion; /*0x16 */ @@ -1323,9 +1340,24 @@ typedef struct _MPI2_CONFIG_PAGE_BIOS_1 { *PTR_MPI2_CONFIG_PAGE_BIOS_1, Mpi2BiosPage1_t, *pMpi2BiosPage1_t; -#define MPI2_BIOSPAGE1_PAGEVERSION (0x05) +#define MPI2_BIOSPAGE1_PAGEVERSION (0x07) /*values for BIOS Page 1 BiosOptions field */ +#define MPI2_BIOSPAGE1_OPTIONS_PNS_MASK (0x00003800) +#define MPI2_BIOSPAGE1_OPTIONS_PNS_PBDHL (0x00000000) +#define MPI2_BIOSPAGE1_OPTIONS_PNS_ENCSLOSURE (0x00000800) +#define MPI2_BIOSPAGE1_OPTIONS_PNS_LWWID (0x00001000) +#define MPI2_BIOSPAGE1_OPTIONS_PNS_PSENS (0x00001800) +#define MPI2_BIOSPAGE1_OPTIONS_PNS_ESPHY (0x00002000) + +#define MPI2_BIOSPAGE1_OPTIONS_X86_DISABLE_BIOS (0x00000400) + +#define MPI2_BIOSPAGE1_OPTIONS_MASK_REGISTRATION_UEFI_BSD (0x00000300) +#define MPI2_BIOSPAGE1_OPTIONS_USE_BIT0_REGISTRATION_UEFI_BSD (0x00000000) +#define MPI2_BIOSPAGE1_OPTIONS_FULL_REGISTRATION_UEFI_BSD (0x00000100) +#define MPI2_BIOSPAGE1_OPTIONS_ADAPTER_REGISTRATION_UEFI_BSD (0x00000200) +#define MPI2_BIOSPAGE1_OPTIONS_DISABLE_REGISTRATION_UEFI_BSD (0x00000300) + #define MPI2_BIOSPAGE1_OPTIONS_MASK_OEM_ID (0x000000F0) #define MPI2_BIOSPAGE1_OPTIONS_LSI_OEM_ID (0x00000000) @@ -2633,9 +2665,9 @@ typedef struct _MPI2_CONFIG_PAGE_SAS_DEV_0 { U8 ControlGroup; /*0x2E */ U8 - Reserved1; /*0x2F */ + EnclosureLevel; /*0x2F */ U32 - Reserved2; /*0x30 */ + ConnectorName[4]; /*0x30 */ U32 Reserved3; /*0x34 */ } MPI2_CONFIG_PAGE_SAS_DEV_0, @@ -2643,7 +2675,7 @@ typedef struct _MPI2_CONFIG_PAGE_SAS_DEV_0 { Mpi2SasDevicePage0_t, *pMpi2SasDevicePage0_t; -#define MPI2_SASDEVICE0_PAGEVERSION (0x08) +#define MPI2_SASDEVICE0_PAGEVERSION (0x09) /*values for SAS Device Page 0 AccessStatus field */ #define MPI2_SAS_DEVICE0_ASTATUS_NO_ERRORS (0x00) @@ -2683,6 +2715,7 @@ typedef struct _MPI2_CONFIG_PAGE_SAS_DEV_0 { #define MPI2_SAS_DEVICE0_FLAGS_SATA_NCQ_SUPPORTED (0x0020) #define MPI2_SAS_DEVICE0_FLAGS_SATA_FUA_SUPPORTED (0x0010) #define MPI2_SAS_DEVICE0_FLAGS_PORT_SELECTOR_ATTACH (0x0008) +#define MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID (0x0002) #define MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT (0x0001) @@ -3019,8 +3052,10 @@ typedef struct _MPI2_CONFIG_PAGE_SAS_ENCLOSURE_0 { NumSlots; /*0x18 */ U16 StartSlot; /*0x1A */ - U16 + U8 Reserved2; /*0x1C */ + U8 + EnclosureLevel; /*0x1D */ U16 SEPDevHandle; /*0x1E */ U32 @@ -3031,9 +3066,10 @@ typedef struct _MPI2_CONFIG_PAGE_SAS_ENCLOSURE_0 { *PTR_MPI2_CONFIG_PAGE_SAS_ENCLOSURE_0, Mpi2SasEnclosurePage0_t, *pMpi2SasEnclosurePage0_t; -#define MPI2_SASENCLOSURE0_PAGEVERSION (0x03) +#define MPI2_SASENCLOSURE0_PAGEVERSION (0x04) /*values for SAS Enclosure Page 0 Flags field */ +#define MPI2_SAS_ENCLS0_FLAGS_ENCL_LEVEL_VALID (0x0010) #define MPI2_SAS_ENCLS0_FLAGS_MNG_MASK (0x000F) #define MPI2_SAS_ENCLS0_FLAGS_MNG_UNKNOWN (0x0000) #define MPI2_SAS_ENCLS0_FLAGS_MNG_IOC_SES (0x0001) diff --git a/drivers/scsi/mpt3sas/mpi/mpi2_ioc.h b/drivers/scsi/mpt3sas/mpi/mpi2_ioc.h index 490830957806..d7598cc4bb8e 100644 --- a/drivers/scsi/mpt3sas/mpi/mpi2_ioc.h +++ b/drivers/scsi/mpt3sas/mpi/mpi2_ioc.h @@ -6,7 +6,7 @@ * Title: MPI IOC, Port, Event, FW Download, and FW Upload messages * Creation Date: October 11, 2006 * - * mpi2_ioc.h Version: 02.00.23 + * mpi2_ioc.h Version: 02.00.24 * * NOTE: Names (typedefs, defines, etc.) beginning with an MPI25 or Mpi25 * prefix are for use only on MPI v2.5 products, and must not be used @@ -132,6 +132,7 @@ * Added MPI2_IOCFACTS_CAPABILITY_RDPQ_ARRAY_CAPABLE. * Added MPI2_FW_DOWNLOAD_ITYPE_PUBLIC_KEY. * Added Encrypted Hash Extended Image. + * 12-05-13 02.00.24 Added MPI25_HASH_IMAGE_TYPE_BIOS. * -------------------------------------------------------------------------- */ @@ -1598,6 +1599,7 @@ Mpi25EncryptedHashEntry_t, *pMpi25EncryptedHashEntry_t; /* values for HashImageType */ #define MPI25_HASH_IMAGE_TYPE_UNUSED (0x00) #define MPI25_HASH_IMAGE_TYPE_FIRMWARE (0x01) +#define MPI25_HASH_IMAGE_TYPE_BIOS (0x02) /* values for HashAlgorithm */ #define MPI25_HASH_ALGORITHM_UNUSED (0x00) diff --git a/drivers/scsi/mpt3sas/mpi/mpi2_tool.h b/drivers/scsi/mpt3sas/mpi/mpi2_tool.h index 904910d8a737..1629e5bce7e1 100644 --- a/drivers/scsi/mpt3sas/mpi/mpi2_tool.h +++ b/drivers/scsi/mpt3sas/mpi/mpi2_tool.h @@ -6,7 +6,7 @@ * Title: MPI diagnostic tool structures and definitions * Creation Date: March 26, 2007 * - * mpi2_tool.h Version: 02.00.11 + * mpi2_tool.h Version: 02.00.12 * * Version History * --------------- @@ -33,6 +33,7 @@ * 07-26-12 02.00.10 Modified MPI2_TOOLBOX_DIAGNOSTIC_CLI_REQUEST so that * it uses MPI Chain SGE as well as MPI Simple SGE. * 08-19-13 02.00.11 Added MPI2_TOOLBOX_TEXT_DISPLAY_TOOL and related info. + * 01-08-14 02.00.12 Added MPI2_TOOLBOX_CLEAN_BIT26_PRODUCT_SPECIFIC. * -------------------------------------------------------------------------- */ @@ -100,6 +101,7 @@ typedef struct _MPI2_TOOLBOX_CLEAN_REQUEST { #define MPI2_TOOLBOX_CLEAN_OTHER_PERSIST_PAGES (0x20000000) #define MPI2_TOOLBOX_CLEAN_FW_CURRENT (0x10000000) #define MPI2_TOOLBOX_CLEAN_FW_BACKUP (0x08000000) +#define MPI2_TOOLBOX_CLEAN_BIT26_PRODUCT_SPECIFIC (0x04000000) #define MPI2_TOOLBOX_CLEAN_MEGARAID (0x02000000) #define MPI2_TOOLBOX_CLEAN_INITIALIZATION (0x01000000) #define MPI2_TOOLBOX_CLEAN_FLASH (0x00000004) diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c index 14a781b6b88d..d4f1dcdb8361 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.c +++ b/drivers/scsi/mpt3sas/mpt3sas_base.c @@ -83,10 +83,10 @@ static int msix_disable = -1; module_param(msix_disable, int, 0); MODULE_PARM_DESC(msix_disable, " disable msix routed interrupts (default=0)"); -static int max_msix_vectors = 8; +static int max_msix_vectors = -1; module_param(max_msix_vectors, int, 0); MODULE_PARM_DESC(max_msix_vectors, - " max msix vectors - (default=8)"); + " max msix vectors"); static int mpt3sas_fwfault_debug; MODULE_PARM_DESC(mpt3sas_fwfault_debug, @@ -1009,8 +1009,30 @@ _base_interrupt(int irq, void *bus_id) } wmb(); - writel(reply_q->reply_post_host_index | (msix_index << - MPI2_RPHI_MSIX_INDEX_SHIFT), &ioc->chip->ReplyPostHostIndex); + + /* Update Reply Post Host Index. + * For those HBA's which support combined reply queue feature + * 1. Get the correct Supplemental Reply Post Host Index Register. + * i.e. (msix_index / 8)th entry from Supplemental Reply Post Host + * Index Register address bank i.e replyPostRegisterIndex[], + * 2. Then update this register with new reply host index value + * in ReplyPostIndex field and the MSIxIndex field with + * msix_index value reduced to a value between 0 and 7, + * using a modulo 8 operation. Since each Supplemental Reply Post + * Host Index Register supports 8 MSI-X vectors. + * + * For other HBA's just update the Reply Post Host Index register with + * new reply host index value in ReplyPostIndex Field and msix_index + * value in MSIxIndex field. + */ + if (ioc->msix96_vector) + writel(reply_q->reply_post_host_index | ((msix_index & 7) << + MPI2_RPHI_MSIX_INDEX_SHIFT), + ioc->replyPostRegisterIndex[msix_index/8]); + else + writel(reply_q->reply_post_host_index | (msix_index << + MPI2_RPHI_MSIX_INDEX_SHIFT), + &ioc->chip->ReplyPostHostIndex); atomic_dec(&reply_q->busy); return IRQ_HANDLED; } @@ -1338,7 +1360,7 @@ _base_build_sg_scmd_ieee(struct MPT3SAS_ADAPTER *ioc, sg_scmd = scsi_sglist(scmd); sges_left = scsi_dma_map(scmd); - if (!sges_left) { + if (sges_left < 0) { sdev_printk(KERN_ERR, scmd->device, "pci_map_sg failed: request for %d bytes!\n", scsi_bufflen(scmd)); @@ -1407,7 +1429,7 @@ _base_build_sg_scmd_ieee(struct MPT3SAS_ADAPTER *ioc, fill_in_last_segment: /* fill the last segment */ - while (sges_left) { + while (sges_left > 0) { if (sges_left == 1) _base_add_sg_single_ieee(sg_local, simple_sgl_flags_last, 0, sg_dma_len(sg_scmd), @@ -1560,8 +1582,6 @@ _base_check_enable_msix(struct MPT3SAS_ADAPTER *ioc) pci_read_config_word(ioc->pdev, base + 2, &message_control); ioc->msix_vector_count = (message_control & 0x3FF) + 1; - if (ioc->msix_vector_count > 8) - ioc->msix_vector_count = 8; dinitprintk(ioc, pr_info(MPT3SAS_FMT "msix is supported, vector_count(%d)\n", ioc->name, ioc->msix_vector_count)); @@ -1793,6 +1813,36 @@ _base_enable_msix(struct MPT3SAS_ADAPTER *ioc) } /** + * mpt3sas_base_unmap_resources - free controller resources + * @ioc: per adapter object + */ +void +mpt3sas_base_unmap_resources(struct MPT3SAS_ADAPTER *ioc) +{ + struct pci_dev *pdev = ioc->pdev; + + dexitprintk(ioc, printk(MPT3SAS_FMT "%s\n", + ioc->name, __func__)); + + _base_free_irq(ioc); + _base_disable_msix(ioc); + + if (ioc->msix96_vector) + kfree(ioc->replyPostRegisterIndex); + + if (ioc->chip_phys) { + iounmap(ioc->chip); + ioc->chip_phys = 0; + } + + if (pci_is_enabled(pdev)) { + pci_release_selected_regions(ioc->pdev, ioc->bars); + pci_disable_pcie_error_reporting(pdev); + pci_disable_device(pdev); + } +} + +/** * mpt3sas_base_map_resources - map in controller resources (io/irq/memap) * @ioc: per adapter object * @@ -1843,7 +1893,8 @@ mpt3sas_base_map_resources(struct MPT3SAS_ADAPTER *ioc) goto out_fail; } - for (i = 0, memap_sz = 0, pio_sz = 0 ; i < DEVICE_COUNT_RESOURCE; i++) { + for (i = 0, memap_sz = 0, pio_sz = 0; (i < DEVICE_COUNT_RESOURCE) && + (!memap_sz || !pio_sz); i++) { if (pci_resource_flags(pdev, i) & IORESOURCE_IO) { if (pio_sz) continue; @@ -1856,15 +1907,16 @@ mpt3sas_base_map_resources(struct MPT3SAS_ADAPTER *ioc) chip_phys = (u64)ioc->chip_phys; memap_sz = pci_resource_len(pdev, i); ioc->chip = ioremap(ioc->chip_phys, memap_sz); - if (ioc->chip == NULL) { - pr_err(MPT3SAS_FMT "unable to map adapter memory!\n", - ioc->name); - r = -EINVAL; - goto out_fail; - } } } + if (ioc->chip == NULL) { + pr_err(MPT3SAS_FMT "unable to map adapter memory! " + " or resource not found\n", ioc->name); + r = -EINVAL; + goto out_fail; + } + _base_mask_interrupts(ioc); r = _base_get_ioc_facts(ioc, CAN_SLEEP); @@ -1880,6 +1932,36 @@ mpt3sas_base_map_resources(struct MPT3SAS_ADAPTER *ioc) if (r) goto out_fail; + /* Use the Combined reply queue feature only for SAS3 C0 & higher + * revision HBAs and also only when reply queue count is greater than 8 + */ + if (ioc->msix96_vector && ioc->reply_queue_count > 8) { + /* Determine the Supplemental Reply Post Host Index Registers + * Addresse. Supplemental Reply Post Host Index Registers + * starts at offset MPI25_SUP_REPLY_POST_HOST_INDEX_OFFSET and + * each register is at offset bytes of + * MPT3_SUP_REPLY_POST_HOST_INDEX_REG_OFFSET from previous one. + */ + ioc->replyPostRegisterIndex = kcalloc( + MPT3_SUP_REPLY_POST_HOST_INDEX_REG_COUNT, + sizeof(resource_size_t *), GFP_KERNEL); + if (!ioc->replyPostRegisterIndex) { + dfailprintk(ioc, printk(MPT3SAS_FMT + "allocation for reply Post Register Index failed!!!\n", + ioc->name)); + r = -ENOMEM; + goto out_fail; + } + + for (i = 0; i < MPT3_SUP_REPLY_POST_HOST_INDEX_REG_COUNT; i++) { + ioc->replyPostRegisterIndex[i] = (resource_size_t *) + ((u8 *)&ioc->chip->Doorbell + + MPI25_SUP_REPLY_POST_HOST_INDEX_OFFSET + + (i * MPT3_SUP_REPLY_POST_HOST_INDEX_REG_OFFSET)); + } + } else + ioc->msix96_vector = 0; + list_for_each_entry(reply_q, &ioc->reply_queue_list, list) pr_info(MPT3SAS_FMT "%s: IRQ %d\n", reply_q->name, ((ioc->msix_enable) ? "PCI-MSI-X enabled" : @@ -1895,12 +1977,7 @@ mpt3sas_base_map_resources(struct MPT3SAS_ADAPTER *ioc) return 0; out_fail: - if (ioc->chip_phys) - iounmap(ioc->chip); - ioc->chip_phys = 0; - pci_release_selected_regions(ioc->pdev, ioc->bars); - pci_disable_pcie_error_reporting(pdev); - pci_disable_device(pdev); + mpt3sas_base_unmap_resources(ioc); return r; } @@ -2290,6 +2367,99 @@ _base_display_intel_branding(struct MPT3SAS_ADAPTER *ioc) /** + * _base_display_dell_branding - Display branding string + * @ioc: per adapter object + * + * Return nothing. + */ +static void +_base_display_dell_branding(struct MPT3SAS_ADAPTER *ioc) +{ + if (ioc->pdev->subsystem_vendor != PCI_VENDOR_ID_DELL) + return; + + switch (ioc->pdev->device) { + case MPI25_MFGPAGE_DEVID_SAS3008: + switch (ioc->pdev->subsystem_device) { + case MPT3SAS_DELL_12G_HBA_SSDID: + pr_info(MPT3SAS_FMT "%s\n", ioc->name, + MPT3SAS_DELL_12G_HBA_BRANDING); + break; + default: + pr_info(MPT3SAS_FMT + "Dell 12Gbps HBA: Subsystem ID: 0x%X\n", ioc->name, + ioc->pdev->subsystem_device); + break; + } + break; + default: + pr_info(MPT3SAS_FMT + "Dell 12Gbps HBA: Subsystem ID: 0x%X\n", ioc->name, + ioc->pdev->subsystem_device); + break; + } +} + +/** + * _base_display_cisco_branding - Display branding string + * @ioc: per adapter object + * + * Return nothing. + */ +static void +_base_display_cisco_branding(struct MPT3SAS_ADAPTER *ioc) +{ + if (ioc->pdev->subsystem_vendor != PCI_VENDOR_ID_CISCO) + return; + + switch (ioc->pdev->device) { + case MPI25_MFGPAGE_DEVID_SAS3008: + switch (ioc->pdev->subsystem_device) { + case MPT3SAS_CISCO_12G_8E_HBA_SSDID: + pr_info(MPT3SAS_FMT "%s\n", ioc->name, + MPT3SAS_CISCO_12G_8E_HBA_BRANDING); + break; + case MPT3SAS_CISCO_12G_8I_HBA_SSDID: + pr_info(MPT3SAS_FMT "%s\n", ioc->name, + MPT3SAS_CISCO_12G_8I_HBA_BRANDING); + break; + case MPT3SAS_CISCO_12G_AVILA_HBA_SSDID: + pr_info(MPT3SAS_FMT "%s\n", ioc->name, + MPT3SAS_CISCO_12G_AVILA_HBA_BRANDING); + break; + default: + pr_info(MPT3SAS_FMT + "Cisco 12Gbps SAS HBA: Subsystem ID: 0x%X\n", + ioc->name, ioc->pdev->subsystem_device); + break; + } + break; + case MPI25_MFGPAGE_DEVID_SAS3108_1: + switch (ioc->pdev->subsystem_device) { + case MPT3SAS_CISCO_12G_AVILA_HBA_SSDID: + pr_info(MPT3SAS_FMT "%s\n", ioc->name, + MPT3SAS_CISCO_12G_AVILA_HBA_BRANDING); + break; + case MPT3SAS_CISCO_12G_COLUSA_MEZZANINE_HBA_SSDID: + pr_info(MPT3SAS_FMT "%s\n", ioc->name, + MPT3SAS_CISCO_12G_COLUSA_MEZZANINE_HBA_BRANDING); + break; + default: + pr_info(MPT3SAS_FMT + "Cisco 12Gbps SAS HBA: Subsystem ID: 0x%X\n", + ioc->name, ioc->pdev->subsystem_device); + break; + } + break; + default: + pr_info(MPT3SAS_FMT + "Cisco 12Gbps SAS HBA: Subsystem ID: 0x%X\n", + ioc->name, ioc->pdev->subsystem_device); + break; + } +} + +/** * _base_display_ioc_capabilities - Disply IOC's capabilities. * @ioc: per adapter object * @@ -2319,6 +2489,8 @@ _base_display_ioc_capabilities(struct MPT3SAS_ADAPTER *ioc) bios_version & 0x000000FF); _base_display_intel_branding(ioc); + _base_display_dell_branding(ioc); + _base_display_cisco_branding(ioc); pr_info(MPT3SAS_FMT "Protocol=(", ioc->name); @@ -3137,6 +3309,9 @@ _base_wait_on_iocstate(struct MPT3SAS_ADAPTER *ioc, u32 ioc_state, int timeout, * Notes: MPI2_HIS_IOC2SYS_DB_STATUS - set to one when IOC writes to doorbell. */ static int +_base_diag_reset(struct MPT3SAS_ADAPTER *ioc, int sleep_flag); + +static int _base_wait_for_doorbell_int(struct MPT3SAS_ADAPTER *ioc, int timeout, int sleep_flag) { @@ -3679,6 +3854,64 @@ _base_get_port_facts(struct MPT3SAS_ADAPTER *ioc, int port, int sleep_flag) } /** + * _base_wait_for_iocstate - Wait until the card is in READY or OPERATIONAL + * @ioc: per adapter object + * @timeout: + * @sleep_flag: CAN_SLEEP or NO_SLEEP + * + * Returns 0 for success, non-zero for failure. + */ +static int +_base_wait_for_iocstate(struct MPT3SAS_ADAPTER *ioc, int timeout, + int sleep_flag) +{ + u32 ioc_state; + int rc; + + dinitprintk(ioc, printk(MPT3SAS_FMT "%s\n", ioc->name, + __func__)); + + if (ioc->pci_error_recovery) { + dfailprintk(ioc, printk(MPT3SAS_FMT + "%s: host in pci error recovery\n", ioc->name, __func__)); + return -EFAULT; + } + + ioc_state = mpt3sas_base_get_iocstate(ioc, 0); + dhsprintk(ioc, printk(MPT3SAS_FMT "%s: ioc_state(0x%08x)\n", + ioc->name, __func__, ioc_state)); + + if (((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_READY) || + (ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_OPERATIONAL) + return 0; + + if (ioc_state & MPI2_DOORBELL_USED) { + dhsprintk(ioc, printk(MPT3SAS_FMT + "unexpected doorbell active!\n", ioc->name)); + goto issue_diag_reset; + } + + if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) { + mpt3sas_base_fault_info(ioc, ioc_state & + MPI2_DOORBELL_DATA_MASK); + goto issue_diag_reset; + } + + ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY, + timeout, sleep_flag); + if (ioc_state) { + dfailprintk(ioc, printk(MPT3SAS_FMT + "%s: failed going to ready state (ioc_state=0x%x)\n", + ioc->name, __func__, ioc_state)); + return -EFAULT; + } + + issue_diag_reset: + rc = _base_diag_reset(ioc, sleep_flag); + return rc; +} + +/** * _base_get_ioc_facts - obtain ioc facts reply and save in ioc * @ioc: per adapter object * @sleep_flag: CAN_SLEEP or NO_SLEEP @@ -3696,6 +3929,13 @@ _base_get_ioc_facts(struct MPT3SAS_ADAPTER *ioc, int sleep_flag) dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name, __func__)); + r = _base_wait_for_iocstate(ioc, 10, sleep_flag); + if (r) { + dfailprintk(ioc, printk(MPT3SAS_FMT + "%s: failed getting to correct state\n", + ioc->name, __func__)); + return r; + } mpi_reply_sz = sizeof(Mpi2IOCFactsReply_t); mpi_request_sz = sizeof(Mpi2IOCFactsRequest_t); memset(&mpi_request, 0, mpi_request_sz); @@ -3781,7 +4021,7 @@ _base_send_ioc_init(struct MPT3SAS_ADAPTER *ioc, int sleep_flag) mpi_request.WhoInit = MPI2_WHOINIT_HOST_DRIVER; mpi_request.VF_ID = 0; /* TODO */ mpi_request.VP_ID = 0; - mpi_request.MsgVersion = cpu_to_le16(MPI2_VERSION); + mpi_request.MsgVersion = cpu_to_le16(MPI25_VERSION); mpi_request.HeaderVersion = cpu_to_le16(MPI2_HEADER_VERSION); if (_base_is_controller_msix_enabled(ioc)) @@ -4522,8 +4762,15 @@ _base_make_ioc_operational(struct MPT3SAS_ADAPTER *ioc, int sleep_flag) /* initialize reply post host index */ list_for_each_entry(reply_q, &ioc->reply_queue_list, list) { - writel(reply_q->msix_index << MPI2_RPHI_MSIX_INDEX_SHIFT, - &ioc->chip->ReplyPostHostIndex); + if (ioc->msix96_vector) + writel((reply_q->msix_index & 7)<< + MPI2_RPHI_MSIX_INDEX_SHIFT, + ioc->replyPostRegisterIndex[reply_q->msix_index/8]); + else + writel(reply_q->msix_index << + MPI2_RPHI_MSIX_INDEX_SHIFT, + &ioc->chip->ReplyPostHostIndex); + if (!_base_is_controller_msix_enabled(ioc)) goto skip_init_reply_post_host_index; } @@ -4562,8 +4809,6 @@ _base_make_ioc_operational(struct MPT3SAS_ADAPTER *ioc, int sleep_flag) void mpt3sas_base_free_resources(struct MPT3SAS_ADAPTER *ioc) { - struct pci_dev *pdev = ioc->pdev; - dexitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name, __func__)); @@ -4574,18 +4819,7 @@ mpt3sas_base_free_resources(struct MPT3SAS_ADAPTER *ioc) ioc->shost_recovery = 0; } - _base_free_irq(ioc); - _base_disable_msix(ioc); - - if (ioc->chip_phys && ioc->chip) - iounmap(ioc->chip); - ioc->chip_phys = 0; - - if (pci_is_enabled(pdev)) { - pci_release_selected_regions(ioc->pdev, ioc->bars); - pci_disable_pcie_error_reporting(pdev); - pci_disable_device(pdev); - } + mpt3sas_base_unmap_resources(ioc); return; } @@ -4600,6 +4834,7 @@ mpt3sas_base_attach(struct MPT3SAS_ADAPTER *ioc) { int r, i; int cpu_id, last_cpu_id = 0; + u8 revision; dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name, __func__)); @@ -4619,6 +4854,20 @@ mpt3sas_base_attach(struct MPT3SAS_ADAPTER *ioc) goto out_free_resources; } + /* Check whether the controller revision is C0 or above. + * only C0 and above revision controllers support 96 MSI-X vectors. + */ + revision = ioc->pdev->revision; + + if ((ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3004 || + ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3008 || + ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3108_1 || + ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3108_2 || + ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3108_5 || + ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3108_6) && + (revision >= 0x02)) + ioc->msix96_vector = 1; + ioc->rdpq_array_enable_assigned = 0; ioc->dma_mask = 0; r = mpt3sas_base_map_resources(ioc); @@ -4641,7 +4890,6 @@ mpt3sas_base_attach(struct MPT3SAS_ADAPTER *ioc) ioc->build_sg_scmd = &_base_build_sg_scmd_ieee; ioc->build_sg = &_base_build_sg_ieee; ioc->build_zero_len_sge = &_base_build_zero_len_sge_ieee; - ioc->mpi25 = 1; ioc->sge_size_ieee = sizeof(Mpi2IeeeSgeSimple64_t); /* diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.h b/drivers/scsi/mpt3sas/mpt3sas_base.h index afa881682bef..f0e462b0880d 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.h +++ b/drivers/scsi/mpt3sas/mpt3sas_base.h @@ -71,8 +71,8 @@ #define MPT3SAS_DRIVER_NAME "mpt3sas" #define MPT3SAS_AUTHOR "Avago Technologies <MPT-FusionLinux.pdl@avagotech.com>" #define MPT3SAS_DESCRIPTION "LSI MPT Fusion SAS 3.0 Device Driver" -#define MPT3SAS_DRIVER_VERSION "04.100.00.00" -#define MPT3SAS_MAJOR_VERSION 4 +#define MPT3SAS_DRIVER_VERSION "09.100.00.00" +#define MPT3SAS_MAJOR_VERSION 9 #define MPT3SAS_MINOR_VERSION 100 #define MPT3SAS_BUILD_VERSION 0 #define MPT3SAS_RELEASE_VERSION 00 @@ -152,12 +152,49 @@ #define MPT3SAS_INTEL_RS3UC080_SSDID 0x3524 /* + * Dell HBA branding + */ +#define MPT3SAS_DELL_12G_HBA_BRANDING \ + "Dell 12Gbps HBA" + +/* + * Dell HBA SSDIDs + */ +#define MPT3SAS_DELL_12G_HBA_SSDID 0x1F46 + +/* + * Cisco HBA branding + */ +#define MPT3SAS_CISCO_12G_8E_HBA_BRANDING \ + "Cisco 9300-8E 12G SAS HBA" +#define MPT3SAS_CISCO_12G_8I_HBA_BRANDING \ + "Cisco 9300-8i 12G SAS HBA" +#define MPT3SAS_CISCO_12G_AVILA_HBA_BRANDING \ + "Cisco 12G Modular SAS Pass through Controller" +#define MPT3SAS_CISCO_12G_COLUSA_MEZZANINE_HBA_BRANDING \ + "UCS C3X60 12G SAS Pass through Controller" +/* + * Cisco HBA SSSDIDs + */ +#define MPT3SAS_CISCO_12G_8E_HBA_SSDID 0x14C +#define MPT3SAS_CISCO_12G_8I_HBA_SSDID 0x154 +#define MPT3SAS_CISCO_12G_AVILA_HBA_SSDID 0x155 +#define MPT3SAS_CISCO_12G_COLUSA_MEZZANINE_HBA_SSDID 0x156 + +/* * status bits for ioc->diag_buffer_status */ #define MPT3_DIAG_BUFFER_IS_REGISTERED (0x01) #define MPT3_DIAG_BUFFER_IS_RELEASED (0x02) #define MPT3_DIAG_BUFFER_IS_DIAG_RESET (0x04) +/* + * Combined Reply Queue constants, + * There are twelve Supplemental Reply Post Host Index Registers + * and each register is at offset 0x10 bytes from the previous one. + */ +#define MPT3_SUP_REPLY_POST_HOST_INDEX_REG_COUNT 12 +#define MPT3_SUP_REPLY_POST_HOST_INDEX_REG_OFFSET (0x10) /* OEM Identifiers */ #define MFG10_OEM_ID_INVALID (0x00000000) @@ -173,6 +210,8 @@ #define MFG10_GF0_SSD_DATA_SCRUB_DISABLE (0x00000008) #define MFG10_GF0_SINGLE_DRIVE_R0 (0x00000010) +#define VIRTUAL_IO_FAILED_RETRY (0x32010081) + /* OEM Specific Flags will come from OEM specific header files */ struct Mpi2ManufacturingPage10_t { MPI2_CONFIG_PAGE_HEADER Header; /* 00h */ @@ -294,7 +333,8 @@ struct _internal_cmd { * @responding: used in _scsih_sas_device_mark_responding * @fast_path: fast path feature enable bit * @pfa_led_on: flag for PFA LED status - * + * @pend_sas_rphy_add: flag to check if device is in sas_rphy_add() + * addition routine. */ struct _sas_device { struct list_head list; @@ -315,6 +355,9 @@ struct _sas_device { u8 responding; u8 fast_path; u8 pfa_led_on; + u8 pend_sas_rphy_add; + u8 enclosure_level; + u8 connector_name[4]; }; /** @@ -728,7 +771,8 @@ typedef void (*MPT3SAS_FLUSH_RUNNING_CMDS)(struct MPT3SAS_ADAPTER *ioc); * is assigned only ones * @reply_queue_count: number of reply queue's * @reply_queue_list: link list contaning the reply queue info - * @reply_post_host_index: head index in the pool where FW completes IO + * @msix96_vector: 96 MSI-X vector support + * @replyPostRegisterIndex: index of next position in Reply Desc Post Queue * @delayed_tr_list: target reset link list * @delayed_tr_volume_list: volume target reset link list * @@temp_sensors_count: flag to carry the number of temperature sensors @@ -814,7 +858,6 @@ struct MPT3SAS_ADAPTER { MPT_BUILD_SG_SCMD build_sg_scmd; MPT_BUILD_SG build_sg; MPT_BUILD_ZERO_LEN_SGE build_zero_len_sge; - u8 mpi25; u16 sge_size_ieee; /* function ptr for MPI sg elements only */ @@ -937,6 +980,10 @@ struct MPT3SAS_ADAPTER { u8 reply_queue_count; struct list_head reply_queue_list; + u8 msix96_vector; + /* reply post register index */ + resource_size_t **replyPostRegisterIndex; + struct list_head delayed_tr_list; struct list_head delayed_tr_volume_list; u8 temp_sensors_count; diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c index 5a97e3286719..8ccef38523fa 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c @@ -585,6 +585,22 @@ _scsih_sas_device_remove(struct MPT3SAS_ADAPTER *ioc, if (!sas_device) return; + pr_info(MPT3SAS_FMT + "removing handle(0x%04x), sas_addr(0x%016llx)\n", + ioc->name, sas_device->handle, + (unsigned long long) sas_device->sas_address); + + if (sas_device->enclosure_handle != 0) + pr_info(MPT3SAS_FMT + "removing enclosure logical id(0x%016llx), slot(%d)\n", + ioc->name, (unsigned long long) + sas_device->enclosure_logical_id, sas_device->slot); + + if (sas_device->connector_name[0] != '\0') + pr_info(MPT3SAS_FMT + "removing enclosure level(0x%04x), connector name( %s)\n", + ioc->name, sas_device->enclosure_level, + sas_device->connector_name); spin_lock_irqsave(&ioc->sas_device_lock, flags); list_del(&sas_device->list); @@ -663,6 +679,18 @@ _scsih_sas_device_add(struct MPT3SAS_ADAPTER *ioc, ioc->name, __func__, sas_device->handle, (unsigned long long)sas_device->sas_address)); + if (sas_device->enclosure_handle != 0) + dewtprintk(ioc, pr_info(MPT3SAS_FMT + "%s: enclosure logical id(0x%016llx), slot( %d)\n", + ioc->name, __func__, (unsigned long long) + sas_device->enclosure_logical_id, sas_device->slot)); + + if (sas_device->connector_name[0] != '\0') + dewtprintk(ioc, pr_info(MPT3SAS_FMT + "%s: enclosure level(0x%04x), connector name( %s)\n", + ioc->name, __func__, + sas_device->enclosure_level, sas_device->connector_name)); + spin_lock_irqsave(&ioc->sas_device_lock, flags); list_add_tail(&sas_device->list, &ioc->sas_device_list); spin_unlock_irqrestore(&ioc->sas_device_lock, flags); @@ -704,6 +732,18 @@ _scsih_sas_device_init_add(struct MPT3SAS_ADAPTER *ioc, __func__, sas_device->handle, (unsigned long long)sas_device->sas_address)); + if (sas_device->enclosure_handle != 0) + dewtprintk(ioc, pr_info(MPT3SAS_FMT + "%s: enclosure logical id(0x%016llx), slot( %d)\n", + ioc->name, __func__, (unsigned long long) + sas_device->enclosure_logical_id, sas_device->slot)); + + if (sas_device->connector_name[0] != '\0') + dewtprintk(ioc, pr_info(MPT3SAS_FMT + "%s: enclosure level(0x%04x), connector name( %s)\n", + ioc->name, __func__, sas_device->enclosure_level, + sas_device->connector_name)); + spin_lock_irqsave(&ioc->sas_device_lock, flags); list_add_tail(&sas_device->list, &ioc->sas_device_init_list); _scsih_determine_boot_device(ioc, sas_device, 0); @@ -1772,10 +1812,16 @@ _scsih_slave_configure(struct scsi_device *sdev) "sas_addr(0x%016llx), phy(%d), device_name(0x%016llx)\n", ds, handle, (unsigned long long)sas_device->sas_address, sas_device->phy, (unsigned long long)sas_device->device_name); - sdev_printk(KERN_INFO, sdev, - "%s: enclosure_logical_id(0x%016llx), slot(%d)\n", - ds, (unsigned long long) - sas_device->enclosure_logical_id, sas_device->slot); + if (sas_device->enclosure_handle != 0) + sdev_printk(KERN_INFO, sdev, + "%s: enclosure_logical_id(0x%016llx), slot(%d)\n", + ds, (unsigned long long) + sas_device->enclosure_logical_id, sas_device->slot); + if (sas_device->connector_name[0] != '\0') + sdev_printk(KERN_INFO, sdev, + "%s: enclosure level(0x%04x), connector name( %s)\n", + ds, sas_device->enclosure_level, + sas_device->connector_name); spin_unlock_irqrestore(&ioc->sas_device_lock, flags); @@ -2189,10 +2235,17 @@ _scsih_tm_display_info(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd) sas_device->handle, (unsigned long long)sas_device->sas_address, sas_device->phy); - starget_printk(KERN_INFO, starget, - "enclosure_logical_id(0x%016llx), slot(%d)\n", - (unsigned long long)sas_device->enclosure_logical_id, - sas_device->slot); + if (sas_device->enclosure_handle != 0) + starget_printk(KERN_INFO, starget, + "enclosure_logical_id(0x%016llx), slot(%d)\n", + (unsigned long long) + sas_device->enclosure_logical_id, + sas_device->slot); + if (sas_device->connector_name) + starget_printk(KERN_INFO, starget, + "enclosure level(0x%04x),connector name(%s)\n", + sas_device->enclosure_level, + sas_device->connector_name); } spin_unlock_irqrestore(&ioc->sas_device_lock, flags); } @@ -2552,6 +2605,75 @@ _scsih_fw_event_cleanup_queue(struct MPT3SAS_ADAPTER *ioc) } /** + * _scsih_internal_device_block - block the sdev device + * @sdev: per device object + * @sas_device_priv_data : per device driver private data + * + * make sure device is blocked without error, if not + * print an error + */ +static void +_scsih_internal_device_block(struct scsi_device *sdev, + struct MPT3SAS_DEVICE *sas_device_priv_data) +{ + int r = 0; + + sdev_printk(KERN_INFO, sdev, "device_block, handle(0x%04x)\n", + sas_device_priv_data->sas_target->handle); + sas_device_priv_data->block = 1; + + r = scsi_internal_device_block(sdev); + if (r == -EINVAL) + sdev_printk(KERN_WARNING, sdev, + "device_block failed with return(%d) for handle(0x%04x)\n", + sas_device_priv_data->sas_target->handle, r); +} + +/** + * _scsih_internal_device_unblock - unblock the sdev device + * @sdev: per device object + * @sas_device_priv_data : per device driver private data + * make sure device is unblocked without error, if not retry + * by blocking and then unblocking + */ + +static void +_scsih_internal_device_unblock(struct scsi_device *sdev, + struct MPT3SAS_DEVICE *sas_device_priv_data) +{ + int r = 0; + + sdev_printk(KERN_WARNING, sdev, "device_unblock and setting to running, " + "handle(0x%04x)\n", sas_device_priv_data->sas_target->handle); + sas_device_priv_data->block = 0; + r = scsi_internal_device_unblock(sdev, SDEV_RUNNING); + if (r == -EINVAL) { + /* The device has been set to SDEV_RUNNING by SD layer during + * device addition but the request queue is still stopped by + * our earlier block call. We need to perform a block again + * to get the device to SDEV_BLOCK and then to SDEV_RUNNING */ + + sdev_printk(KERN_WARNING, sdev, + "device_unblock failed with return(%d) for handle(0x%04x) " + "performing a block followed by an unblock\n", + sas_device_priv_data->sas_target->handle, r); + sas_device_priv_data->block = 1; + r = scsi_internal_device_block(sdev); + if (r) + sdev_printk(KERN_WARNING, sdev, "retried device_block " + "failed with return(%d) for handle(0x%04x)\n", + sas_device_priv_data->sas_target->handle, r); + + sas_device_priv_data->block = 0; + r = scsi_internal_device_unblock(sdev, SDEV_RUNNING); + if (r) + sdev_printk(KERN_WARNING, sdev, "retried device_unblock" + " failed with return(%d) for handle(0x%04x)\n", + sas_device_priv_data->sas_target->handle, r); + } +} + +/** * _scsih_ublock_io_all_device - unblock every device * @ioc: per adapter object * @@ -2570,11 +2692,10 @@ _scsih_ublock_io_all_device(struct MPT3SAS_ADAPTER *ioc) if (!sas_device_priv_data->block) continue; - sas_device_priv_data->block = 0; dewtprintk(ioc, sdev_printk(KERN_INFO, sdev, "device_running, handle(0x%04x)\n", sas_device_priv_data->sas_target->handle)); - scsi_internal_device_unblock(sdev, SDEV_RUNNING); + _scsih_internal_device_unblock(sdev, sas_device_priv_data); } } @@ -2599,10 +2720,9 @@ _scsih_ublock_io_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address) if (sas_device_priv_data->sas_target->sas_address != sas_address) continue; - if (sas_device_priv_data->block) { - sas_device_priv_data->block = 0; - scsi_internal_device_unblock(sdev, SDEV_RUNNING); - } + if (sas_device_priv_data->block) + _scsih_internal_device_unblock(sdev, + sas_device_priv_data); } } @@ -2625,10 +2745,7 @@ _scsih_block_io_all_device(struct MPT3SAS_ADAPTER *ioc) continue; if (sas_device_priv_data->block) continue; - sas_device_priv_data->block = 1; - scsi_internal_device_block(sdev); - sdev_printk(KERN_INFO, sdev, "device_blocked, handle(0x%04x)\n", - sas_device_priv_data->sas_target->handle); + _scsih_internal_device_block(sdev, sas_device_priv_data); } } @@ -2644,6 +2761,11 @@ _scsih_block_io_device(struct MPT3SAS_ADAPTER *ioc, u16 handle) { struct MPT3SAS_DEVICE *sas_device_priv_data; struct scsi_device *sdev; + struct _sas_device *sas_device; + + sas_device = _scsih_sas_device_find_by_handle(ioc, handle); + if (!sas_device) + return; shost_for_each_device(sdev, ioc->shost) { sas_device_priv_data = sdev->hostdata; @@ -2653,10 +2775,9 @@ _scsih_block_io_device(struct MPT3SAS_ADAPTER *ioc, u16 handle) continue; if (sas_device_priv_data->block) continue; - sas_device_priv_data->block = 1; - scsi_internal_device_block(sdev); - sdev_printk(KERN_INFO, sdev, - "device_blocked, handle(0x%04x)\n", handle); + if (sas_device->pend_sas_rphy_add) + continue; + _scsih_internal_device_block(sdev, sas_device_priv_data); } } @@ -2806,6 +2927,18 @@ _scsih_tm_tr_send(struct MPT3SAS_ADAPTER *ioc, u16 handle) "setting delete flag: handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, handle, (unsigned long long)sas_address)); + if (sas_device->enclosure_handle != 0) + dewtprintk(ioc, pr_info(MPT3SAS_FMT + "setting delete flag:enclosure logical id(0x%016llx)," + " slot(%d)\n", ioc->name, (unsigned long long) + sas_device->enclosure_logical_id, + sas_device->slot)); + if (sas_device->connector_name) + dewtprintk(ioc, pr_info(MPT3SAS_FMT + "setting delete flag: enclosure level(0x%04x)," + " connector name( %s)\n", ioc->name, + sas_device->enclosure_level, + sas_device->connector_name)); _scsih_ublock_io_device(ioc, sas_address); sas_target_priv_data->handle = MPT3SAS_INVALID_DEVICE_HANDLE; } @@ -3821,10 +3954,19 @@ _scsih_scsi_ioc_info(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd, "\tsas_address(0x%016llx), phy(%d)\n", ioc->name, (unsigned long long) sas_device->sas_address, sas_device->phy); - pr_warn(MPT3SAS_FMT - "\tenclosure_logical_id(0x%016llx), slot(%d)\n", - ioc->name, (unsigned long long) - sas_device->enclosure_logical_id, sas_device->slot); + if (sas_device->enclosure_handle != 0) + pr_warn(MPT3SAS_FMT + "\tenclosure_logical_id(0x%016llx)," + "slot(%d)\n", ioc->name, + (unsigned long long) + sas_device->enclosure_logical_id, + sas_device->slot); + if (sas_device->connector_name[0]) + pr_warn(MPT3SAS_FMT + "\tenclosure level(0x%04x)," + " connector name( %s)\n", ioc->name, + sas_device->enclosure_level, + sas_device->connector_name); } spin_unlock_irqrestore(&ioc->sas_device_lock, flags); } @@ -3999,7 +4141,16 @@ _scsih_smart_predicted_fault(struct MPT3SAS_ADAPTER *ioc, u16 handle) spin_unlock_irqrestore(&ioc->sas_device_lock, flags); return; } - starget_printk(KERN_WARNING, starget, "predicted fault\n"); + if (sas_device->enclosure_handle != 0) + starget_printk(KERN_INFO, starget, "predicted fault, " + "enclosure logical id(0x%016llx), slot(%d)\n", + (unsigned long long)sas_device->enclosure_logical_id, + sas_device->slot); + if (sas_device->connector_name[0] != '\0') + starget_printk(KERN_WARNING, starget, "predicted fault, " + "enclosure level(0x%04x), connector name( %s)\n", + sas_device->enclosure_level, + sas_device->connector_name); spin_unlock_irqrestore(&ioc->sas_device_lock, flags); if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM) @@ -4119,8 +4270,15 @@ _scsih_io_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply) _scsih_smart_predicted_fault(ioc, le16_to_cpu(mpi_reply->DevHandle)); mpt3sas_trigger_scsi(ioc, data.skey, data.asc, data.ascq); - } +#ifdef CONFIG_SCSI_MPT3SAS_LOGGING + if (!(ioc->logging_level & MPT_DEBUG_REPLY) && + ((scmd->sense_buffer[2] == UNIT_ATTENTION) || + (scmd->sense_buffer[2] == MEDIUM_ERROR) || + (scmd->sense_buffer[2] == HARDWARE_ERROR))) + _scsih_scsi_ioc_info(ioc, scmd, mpi_reply, smid); +#endif + } switch (ioc_status) { case MPI2_IOCSTATUS_BUSY: case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES: @@ -4146,6 +4304,9 @@ _scsih_io_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply) scmd->device->expecting_cc_ua = 1; } break; + } else if (log_info == VIRTUAL_IO_FAILED_RETRY) { + scmd->result = DID_RESET << 16; + break; } scmd->result = DID_SOFT_ERROR << 16; break; @@ -4788,6 +4949,16 @@ _scsih_check_device(struct MPT3SAS_ADAPTER *ioc, sas_device->handle, handle); sas_target_priv_data->handle = handle; sas_device->handle = handle; + if (sas_device_pg0.Flags & + MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID) { + sas_device->enclosure_level = + le16_to_cpu(sas_device_pg0.EnclosureLevel); + memcpy(&sas_device->connector_name[0], + &sas_device_pg0.ConnectorName[0], 4); + } else { + sas_device->enclosure_level = 0; + sas_device->connector_name[0] = '\0'; + } } /* check if device is present */ @@ -4894,14 +5065,24 @@ _scsih_add_device(struct MPT3SAS_ADAPTER *ioc, u16 handle, u8 phy_num, ioc->name, __FILE__, __LINE__, __func__); sas_device->enclosure_handle = le16_to_cpu(sas_device_pg0.EnclosureHandle); - sas_device->slot = - le16_to_cpu(sas_device_pg0.Slot); + if (sas_device->enclosure_handle != 0) + sas_device->slot = + le16_to_cpu(sas_device_pg0.Slot); sas_device->device_info = device_info; sas_device->sas_address = sas_address; sas_device->phy = sas_device_pg0.PhyNum; sas_device->fast_path = (le16_to_cpu(sas_device_pg0.Flags) & MPI25_SAS_DEVICE0_FLAGS_FAST_PATH_CAPABLE) ? 1 : 0; + if (sas_device_pg0.Flags & MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID) { + sas_device->enclosure_level = + le16_to_cpu(sas_device_pg0.EnclosureLevel); + memcpy(&sas_device->connector_name[0], + &sas_device_pg0.ConnectorName[0], 4); + } else { + sas_device->enclosure_level = 0; + sas_device->connector_name[0] = '\0'; + } /* get enclosure_logical_id */ if (sas_device->enclosure_handle && !(mpt3sas_config_get_enclosure_pg0( ioc, &mpi_reply, &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE, @@ -4943,6 +5124,18 @@ _scsih_remove_device(struct MPT3SAS_ADAPTER *ioc, ioc->name, __func__, sas_device->handle, (unsigned long long) sas_device->sas_address)); + if (sas_device->enclosure_handle != 0) + dewtprintk(ioc, pr_info(MPT3SAS_FMT + "%s: enter: enclosure logical id(0x%016llx), slot(%d)\n", + ioc->name, __func__, + (unsigned long long)sas_device->enclosure_logical_id, + sas_device->slot)); + if (sas_device->connector_name[0] != '\0') + dewtprintk(ioc, pr_info(MPT3SAS_FMT + "%s: enter: enclosure level(0x%04x), connector name( %s)\n", + ioc->name, __func__, + sas_device->enclosure_level, + sas_device->connector_name)); if (sas_device->starget && sas_device->starget->hostdata) { sas_target_priv_data = sas_device->starget->hostdata; @@ -4959,12 +5152,34 @@ _scsih_remove_device(struct MPT3SAS_ADAPTER *ioc, "removing handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, sas_device->handle, (unsigned long long) sas_device->sas_address); + if (sas_device->enclosure_handle != 0) + pr_info(MPT3SAS_FMT + "removing : enclosure logical id(0x%016llx), slot(%d)\n", + ioc->name, + (unsigned long long)sas_device->enclosure_logical_id, + sas_device->slot); + if (sas_device->connector_name[0] != '\0') + pr_info(MPT3SAS_FMT + "removing enclosure level(0x%04x), connector name( %s)\n", + ioc->name, sas_device->enclosure_level, + sas_device->connector_name); dewtprintk(ioc, pr_info(MPT3SAS_FMT "%s: exit: handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__, - sas_device->handle, (unsigned long long) - sas_device->sas_address)); + sas_device->handle, (unsigned long long) + sas_device->sas_address)); + if (sas_device->enclosure_handle != 0) + dewtprintk(ioc, pr_info(MPT3SAS_FMT + "%s: exit: enclosure logical id(0x%016llx), slot(%d)\n", + ioc->name, __func__, + (unsigned long long)sas_device->enclosure_logical_id, + sas_device->slot)); + if (sas_device->connector_name[0] != '\0') + dewtprintk(ioc, pr_info(MPT3SAS_FMT + "%s: exit: enclosure level(0x%04x), connector name(%s)\n", + ioc->name, __func__, sas_device->enclosure_level, + sas_device->connector_name)); kfree(sas_device); } @@ -6357,9 +6572,7 @@ _scsih_prep_device_scan(struct MPT3SAS_ADAPTER *ioc) /** * _scsih_mark_responding_sas_device - mark a sas_devices as responding * @ioc: per adapter object - * @sas_address: sas address - * @slot: enclosure slot id - * @handle: device handle + * @sas_device_pg0: SAS Device page 0 * * After host reset, find out whether devices are still responding. * Used in _scsih_remove_unresponsive_sas_devices. @@ -6367,8 +6580,8 @@ _scsih_prep_device_scan(struct MPT3SAS_ADAPTER *ioc) * Return nothing. */ static void -_scsih_mark_responding_sas_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address, - u16 slot, u16 handle) +_scsih_mark_responding_sas_device(struct MPT3SAS_ADAPTER *ioc, +Mpi2SasDevicePage0_t *sas_device_pg0) { struct MPT3SAS_TARGET *sas_target_priv_data = NULL; struct scsi_target *starget; @@ -6377,8 +6590,8 @@ _scsih_mark_responding_sas_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address, spin_lock_irqsave(&ioc->sas_device_lock, flags); list_for_each_entry(sas_device, &ioc->sas_device_list, list) { - if (sas_device->sas_address == sas_address && - sas_device->slot == slot) { + if ((sas_device->sas_address == sas_device_pg0->SASAddress) && + (sas_device->slot == sas_device_pg0->Slot)) { sas_device->responding = 1; starget = sas_device->starget; if (starget && starget->hostdata) { @@ -6387,22 +6600,40 @@ _scsih_mark_responding_sas_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address, sas_target_priv_data->deleted = 0; } else sas_target_priv_data = NULL; - if (starget) + if (starget) { starget_printk(KERN_INFO, starget, - "handle(0x%04x), sas_addr(0x%016llx), " - "enclosure logical id(0x%016llx), " - "slot(%d)\n", handle, - (unsigned long long)sas_device->sas_address, + "handle(0x%04x), sas_addr(0x%016llx)\n", + sas_device_pg0->DevHandle, (unsigned long long) - sas_device->enclosure_logical_id, - sas_device->slot); - if (sas_device->handle == handle) + sas_device->sas_address); + + if (sas_device->enclosure_handle != 0) + starget_printk(KERN_INFO, starget, + "enclosure logical id(0x%016llx)," + " slot(%d)\n", + (unsigned long long) + sas_device->enclosure_logical_id, + sas_device->slot); + } + if (sas_device_pg0->Flags & + MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID) { + sas_device->enclosure_level = + le16_to_cpu(sas_device_pg0->EnclosureLevel); + memcpy(&sas_device->connector_name[0], + &sas_device_pg0->ConnectorName[0], 4); + } else { + sas_device->enclosure_level = 0; + sas_device->connector_name[0] = '\0'; + } + + if (sas_device->handle == sas_device_pg0->DevHandle) goto out; pr_info("\thandle changed from(0x%04x)!!!\n", sas_device->handle); - sas_device->handle = handle; + sas_device->handle = sas_device_pg0->DevHandle; if (sas_target_priv_data) - sas_target_priv_data->handle = handle; + sas_target_priv_data->handle = + sas_device_pg0->DevHandle; goto out; } } @@ -6441,13 +6672,15 @@ _scsih_search_responding_sas_devices(struct MPT3SAS_ADAPTER *ioc) MPI2_IOCSTATUS_MASK; if (ioc_status != MPI2_IOCSTATUS_SUCCESS) break; - handle = le16_to_cpu(sas_device_pg0.DevHandle); + handle = sas_device_pg0.DevHandle = + le16_to_cpu(sas_device_pg0.DevHandle); device_info = le32_to_cpu(sas_device_pg0.DeviceInfo); if (!(_scsih_is_end_device(device_info))) continue; - _scsih_mark_responding_sas_device(ioc, - le64_to_cpu(sas_device_pg0.SASAddress), - le16_to_cpu(sas_device_pg0.Slot), handle); + sas_device_pg0.SASAddress = + le64_to_cpu(sas_device_pg0.SASAddress); + sas_device_pg0.Slot = le16_to_cpu(sas_device_pg0.Slot); + _scsih_mark_responding_sas_device(ioc, &sas_device_pg0); } out: @@ -7854,8 +8087,8 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id) /* event thread */ snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name), "fw_event%d", ioc->id); - ioc->firmware_event_thread = create_singlethread_workqueue( - ioc->firmware_event_name); + ioc->firmware_event_thread = alloc_ordered_workqueue( + ioc->firmware_event_name, WQ_MEM_RECLAIM); if (!ioc->firmware_event_thread) { pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__, __func__); diff --git a/drivers/scsi/mpt3sas/mpt3sas_transport.c b/drivers/scsi/mpt3sas/mpt3sas_transport.c index efb98afc46e0..70fd019e7ee5 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_transport.c +++ b/drivers/scsi/mpt3sas/mpt3sas_transport.c @@ -649,6 +649,7 @@ mpt3sas_transport_port_add(struct MPT3SAS_ADAPTER *ioc, u16 handle, unsigned long flags; struct _sas_node *sas_node; struct sas_rphy *rphy; + struct _sas_device *sas_device = NULL; int i; struct sas_port *port; @@ -731,10 +732,27 @@ mpt3sas_transport_port_add(struct MPT3SAS_ADAPTER *ioc, u16 handle, mpt3sas_port->remote_identify.device_type); rphy->identify = mpt3sas_port->remote_identify; + + if (mpt3sas_port->remote_identify.device_type == SAS_END_DEVICE) { + sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc, + mpt3sas_port->remote_identify.sas_address); + if (!sas_device) { + dfailprintk(ioc, printk(MPT3SAS_FMT + "failure at %s:%d/%s()!\n", + ioc->name, __FILE__, __LINE__, __func__)); + goto out_fail; + } + sas_device->pend_sas_rphy_add = 1; + } + if ((sas_rphy_add(rphy))) { pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__, __func__); } + + if (mpt3sas_port->remote_identify.device_type == SAS_END_DEVICE) + sas_device->pend_sas_rphy_add = 0; + if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) dev_printk(KERN_INFO, &rphy->dev, "add: handle(0x%04x), sas_addr(0x%016llx)\n", @@ -1946,7 +1964,7 @@ _transport_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, } else { dma_addr_out = pci_map_single(ioc->pdev, bio_data(req->bio), blk_rq_bytes(req), PCI_DMA_BIDIRECTIONAL); - if (!dma_addr_out) { + if (pci_dma_mapping_error(ioc->pdev, dma_addr_out)) { pr_info(MPT3SAS_FMT "%s(): DMA Addr out = NULL\n", ioc->name, __func__); rc = -ENOMEM; @@ -1968,7 +1986,7 @@ _transport_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, } else { dma_addr_in = pci_map_single(ioc->pdev, bio_data(rsp->bio), blk_rq_bytes(rsp), PCI_DMA_BIDIRECTIONAL); - if (!dma_addr_in) { + if (pci_dma_mapping_error(ioc->pdev, dma_addr_in)) { pr_info(MPT3SAS_FMT "%s(): DMA Addr in = NULL\n", ioc->name, __func__); rc = -ENOMEM; diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c index d40d734aa53a..e2d555c1bffc 100644 --- a/drivers/scsi/mvsas/mv_init.c +++ b/drivers/scsi/mvsas/mv_init.c @@ -324,13 +324,9 @@ int mvs_ioremap(struct mvs_info *mvi, int bar, int bar_ex) goto err_out; res_flag_ex = pci_resource_flags(pdev, bar_ex); - if (res_flag_ex & IORESOURCE_MEM) { - if (res_flag_ex & IORESOURCE_CACHEABLE) - mvi->regs_ex = ioremap(res_start, res_len); - else - mvi->regs_ex = ioremap_nocache(res_start, - res_len); - } else + if (res_flag_ex & IORESOURCE_MEM) + mvi->regs_ex = ioremap(res_start, res_len); + else mvi->regs_ex = (void *)res_start; if (!mvi->regs_ex) goto err_out; @@ -338,14 +334,14 @@ int mvs_ioremap(struct mvs_info *mvi, int bar, int bar_ex) res_start = pci_resource_start(pdev, bar); res_len = pci_resource_len(pdev, bar); - if (!res_start || !res_len) + if (!res_start || !res_len) { + iounmap(mvi->regs_ex); + mvi->regs_ex = NULL; goto err_out; + } res_flag = pci_resource_flags(pdev, bar); - if (res_flag & IORESOURCE_CACHEABLE) - mvi->regs = ioremap(res_start, res_len); - else - mvi->regs = ioremap_nocache(res_start, res_len); + mvi->regs = ioremap(res_start, res_len); if (!mvi->regs) { if (mvi->regs_ex && (res_flag_ex & IORESOURCE_MEM)) diff --git a/drivers/scsi/pm8001/pm8001_defs.h b/drivers/scsi/pm8001/pm8001_defs.h index 74a4bb9af07b..f14ec6e042b9 100644 --- a/drivers/scsi/pm8001/pm8001_defs.h +++ b/drivers/scsi/pm8001/pm8001_defs.h @@ -49,13 +49,15 @@ enum chip_flavors { chip_8019, chip_8074, chip_8076, - chip_8077 + chip_8077, + chip_8006, }; enum phy_speed { PHY_SPEED_15 = 0x01, PHY_SPEED_30 = 0x02, PHY_SPEED_60 = 0x04, + PHY_SPEED_120 = 0x08, }; enum data_direction { diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c index 96dcc097a463..04e67a190652 100644 --- a/drivers/scsi/pm8001/pm8001_hwi.c +++ b/drivers/scsi/pm8001/pm8001_hwi.c @@ -2642,6 +2642,7 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb) ts->resp = SAS_TASK_COMPLETE; ts->stat = SAS_OPEN_REJECT; ts->open_rej_reason = SAS_OREJ_RSVD_RETRY; + break; default: PM8001_IO_DBG(pm8001_ha, pm8001_printk("Unknown status 0x%x\n", status)); @@ -3263,6 +3264,10 @@ void pm8001_get_lrate_mode(struct pm8001_phy *phy, u8 link_rate) struct sas_phy *sas_phy = phy->sas_phy.phy; switch (link_rate) { + case PHY_SPEED_120: + phy->sas_phy.linkrate = SAS_LINK_RATE_12_0_GBPS; + phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_12_0_GBPS; + break; case PHY_SPEED_60: phy->sas_phy.linkrate = SAS_LINK_RATE_6_0_GBPS; phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_6_0_GBPS; diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c index a132f2664d2f..5c0356fb6310 100644 --- a/drivers/scsi/pm8001/pm8001_init.c +++ b/drivers/scsi/pm8001/pm8001_init.c @@ -57,6 +57,7 @@ static const struct pm8001_chip_info pm8001_chips[] = { [chip_8074] = {0, 8, &pm8001_80xx_dispatch,}, [chip_8076] = {0, 16, &pm8001_80xx_dispatch,}, [chip_8077] = {0, 16, &pm8001_80xx_dispatch,}, + [chip_8006] = {0, 16, &pm8001_80xx_dispatch,}, }; static int pm8001_id; @@ -1107,6 +1108,8 @@ err_out_enable: */ static struct pci_device_id pm8001_pci_table[] = { { PCI_VDEVICE(PMC_Sierra, 0x8001), chip_8001 }, + { PCI_VDEVICE(PMC_Sierra, 0x8006), chip_8006 }, + { PCI_VDEVICE(ADAPTEC2, 0x8006), chip_8006 }, { PCI_VDEVICE(ATTO, 0x0042), chip_8001 }, /* Support for SPC/SPCv/SPCve controllers */ { PCI_VDEVICE(ADAPTEC2, 0x8001), chip_8001 }, @@ -1217,7 +1220,7 @@ MODULE_AUTHOR("Anand Kumar Santhanam <AnandKumar.Santhanam@pmcs.com>"); MODULE_AUTHOR("Sangeetha Gnanasekaran <Sangeetha.Gnanasekaran@pmcs.com>"); MODULE_AUTHOR("Nikith Ganigarakoppal <Nikith.Ganigarakoppal@pmcs.com>"); MODULE_DESCRIPTION( - "PMC-Sierra PM8001/8081/8088/8089/8074/8076/8077 " + "PMC-Sierra PM8001/8006/8081/8088/8089/8074/8076/8077 " "SAS/SATA controller driver"); MODULE_VERSION(DRV_VERSION); MODULE_LICENSE("GPL"); diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c index b93f289b42b3..949198c01ced 100644 --- a/drivers/scsi/pm8001/pm8001_sas.c +++ b/drivers/scsi/pm8001/pm8001_sas.c @@ -790,6 +790,7 @@ pm8001_exec_internal_task_abort(struct pm8001_hba_info *pm8001_ha, ccb->device = pm8001_dev; ccb->ccb_tag = ccb_tag; ccb->task = task; + ccb->n_elem = 0; res = PM8001_CHIP_DISP->task_abort(pm8001_ha, pm8001_dev, flag, task_tag, ccb_tag); @@ -975,19 +976,27 @@ int pm8001_I_T_nexus_reset(struct domain_device *dev) phy = sas_get_local_phy(dev); if (dev_is_sata(dev)) { - DECLARE_COMPLETION_ONSTACK(completion_setstate); if (scsi_is_sas_phy_local(phy)) { rc = 0; goto out; } rc = sas_phy_reset(phy, 1); + if (rc) { + PM8001_EH_DBG(pm8001_ha, + pm8001_printk("phy reset failed for device %x\n" + "with rc %d\n", pm8001_dev->device_id, rc)); + rc = TMF_RESP_FUNC_FAILED; + goto out; + } msleep(2000); rc = pm8001_exec_internal_task_abort(pm8001_ha, pm8001_dev , dev, 1, 0); - pm8001_dev->setds_completion = &completion_setstate; - rc = PM8001_CHIP_DISP->set_dev_state_req(pm8001_ha, - pm8001_dev, 0x01); - wait_for_completion(&completion_setstate); + if (rc) { + PM8001_EH_DBG(pm8001_ha, + pm8001_printk("task abort failed %x\n" + "with rc %d\n", pm8001_dev->device_id, rc)); + rc = TMF_RESP_FUNC_FAILED; + } } else { rc = sas_phy_reset(phy, 1); msleep(2000); diff --git a/drivers/scsi/pm8001/pm8001_sas.h b/drivers/scsi/pm8001/pm8001_sas.h index 8dd8b7840f04..e2e97db38ae8 100644 --- a/drivers/scsi/pm8001/pm8001_sas.h +++ b/drivers/scsi/pm8001/pm8001_sas.h @@ -58,7 +58,7 @@ #include "pm8001_defs.h" #define DRV_NAME "pm80xx" -#define DRV_VERSION "0.1.37" +#define DRV_VERSION "0.1.38" #define PM8001_FAIL_LOGGING 0x01 /* Error message logging */ #define PM8001_INIT_LOGGING 0x02 /* driver init logging */ #define PM8001_DISC_LOGGING 0x04 /* discovery layer logging */ @@ -241,7 +241,7 @@ struct pm8001_chip_info { struct pm8001_port { struct asd_sas_port sas_port; u8 port_attached; - u8 wide_port_phymap; + u16 wide_port_phymap; u8 port_state; struct list_head list; }; @@ -569,6 +569,14 @@ struct pm8001_fw_image_header { #define NCQ_READ_LOG_FLAG 0x80000000 #define NCQ_ABORT_ALL_FLAG 0x40000000 #define NCQ_2ND_RLE_FLAG 0x20000000 + +/* Device states */ +#define DS_OPERATIONAL 0x01 +#define DS_PORT_IN_RESET 0x02 +#define DS_IN_RECOVERY 0x03 +#define DS_IN_ERROR 0x04 +#define DS_NON_OPERATIONAL 0x07 + /** * brief param structure for firmware flash update. */ diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c index 05cce463ab01..9a389f1508de 100644 --- a/drivers/scsi/pm8001/pm80xx_hwi.c +++ b/drivers/scsi/pm8001/pm80xx_hwi.c @@ -309,6 +309,9 @@ static void read_main_config_table(struct pm8001_hba_info *pm8001_ha) pm8001_mr32(address, MAIN_INT_VECTOR_TABLE_OFFSET); pm8001_ha->main_cfg_tbl.pm80xx_tbl.phy_attr_table_offset = pm8001_mr32(address, MAIN_SAS_PHY_ATTR_TABLE_OFFSET); + /* read port recover and reset timeout */ + pm8001_ha->main_cfg_tbl.pm80xx_tbl.port_recovery_timer = + pm8001_mr32(address, MAIN_PORT_RECOVERY_TIMER); } /** @@ -585,6 +588,12 @@ static void update_main_config_table(struct pm8001_hba_info *pm8001_ha) pm8001_ha->main_cfg_tbl.pm80xx_tbl.port_recovery_timer); pm8001_mw32(address, MAIN_INT_REASSERTION_DELAY, pm8001_ha->main_cfg_tbl.pm80xx_tbl.interrupt_reassertion_delay); + + pm8001_ha->main_cfg_tbl.pm80xx_tbl.port_recovery_timer &= 0xffff0000; + pm8001_ha->main_cfg_tbl.pm80xx_tbl.port_recovery_timer |= + PORT_RECOVERY_TIMEOUT; + pm8001_mw32(address, MAIN_PORT_RECOVERY_TIMER, + pm8001_ha->main_cfg_tbl.pm80xx_tbl.port_recovery_timer); } /** @@ -843,6 +852,7 @@ pm80xx_set_thermal_config(struct pm8001_hba_info *pm8001_ha) int rc; u32 tag; u32 opc = OPC_INB_SET_CONTROLLER_CONFIG; + u32 page_code; memset(&payload, 0, sizeof(struct set_ctrl_cfg_req)); rc = pm8001_tag_alloc(pm8001_ha, &tag); @@ -851,8 +861,14 @@ pm80xx_set_thermal_config(struct pm8001_hba_info *pm8001_ha) circularQ = &pm8001_ha->inbnd_q_tbl[0]; payload.tag = cpu_to_le32(tag); + + if (IS_SPCV_12G(pm8001_ha->pdev)) + page_code = THERMAL_PAGE_CODE_7H; + else + page_code = THERMAL_PAGE_CODE_8H; + payload.cfg_pg[0] = (THERMAL_LOG_ENABLE << 9) | - (THERMAL_ENABLE << 8) | THERMAL_OP_CODE; + (THERMAL_ENABLE << 8) | page_code; payload.cfg_pg[1] = (LTEMPHIL << 24) | (RTEMPHIL << 8); rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload, 0); @@ -1593,6 +1609,13 @@ mpi_ssp_completion(struct pm8001_hba_info *pm8001_ha , void *piomb) ts->stat = SAS_OPEN_REJECT; ts->open_rej_reason = SAS_OREJ_RSVD_RETRY; break; + case IO_XFER_ERROR_INVALID_SSP_RSP_FRAME: + PM8001_IO_DBG(pm8001_ha, + pm8001_printk("IO_XFER_ERROR_INVALID_SSP_RSP_FRAME\n")); + ts->resp = SAS_TASK_COMPLETE; + ts->stat = SAS_OPEN_REJECT; + ts->open_rej_reason = SAS_OREJ_RSVD_RETRY; + break; case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED: PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED\n")); @@ -2314,6 +2337,7 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb) ts->resp = SAS_TASK_COMPLETE; ts->stat = SAS_OPEN_REJECT; ts->open_rej_reason = SAS_OREJ_RSVD_RETRY; + break; default: PM8001_IO_DBG(pm8001_ha, pm8001_printk("Unknown status 0x%x\n", status)); @@ -2829,6 +2853,32 @@ static void pm80xx_hw_event_ack_req(struct pm8001_hba_info *pm8001_ha, static int pm80xx_chip_phy_ctl_req(struct pm8001_hba_info *pm8001_ha, u32 phyId, u32 phy_op); +static void hw_event_port_recover(struct pm8001_hba_info *pm8001_ha, + void *piomb) +{ + struct hw_event_resp *pPayload = (struct hw_event_resp *)(piomb + 4); + u32 phyid_npip_portstate = le32_to_cpu(pPayload->phyid_npip_portstate); + u8 phy_id = (u8)((phyid_npip_portstate & 0xFF0000) >> 16); + u32 lr_status_evt_portid = + le32_to_cpu(pPayload->lr_status_evt_portid); + u8 deviceType = pPayload->sas_identify.dev_type; + u8 link_rate = (u8)((lr_status_evt_portid & 0xF0000000) >> 28); + struct pm8001_phy *phy = &pm8001_ha->phy[phy_id]; + u8 port_id = (u8)(lr_status_evt_portid & 0x000000FF); + struct pm8001_port *port = &pm8001_ha->port[port_id]; + + if (deviceType == SAS_END_DEVICE) { + pm80xx_chip_phy_ctl_req(pm8001_ha, phy_id, + PHY_NOTIFY_ENABLE_SPINUP); + } + + port->wide_port_phymap |= (1U << phy_id); + pm8001_get_lrate_mode(phy, link_rate); + phy->sas_phy.oob_mode = SAS_OOB_MODE; + phy->phy_state = PHY_STATE_LINK_UP_SPCV; + phy->phy_attached = 1; +} + /** * hw_event_sas_phy_up -FW tells me a SAS phy up event. * @pm8001_ha: our hba card information @@ -2856,6 +2906,7 @@ hw_event_sas_phy_up(struct pm8001_hba_info *pm8001_ha, void *piomb) unsigned long flags; u8 deviceType = pPayload->sas_identify.dev_type; port->port_state = portstate; + port->wide_port_phymap |= (1U << phy_id); phy->phy_state = PHY_STATE_LINK_UP_SPCV; PM8001_MSG_DBG(pm8001_ha, pm8001_printk( "portid:%d; phyid:%d; linkrate:%d; " @@ -2981,7 +3032,6 @@ hw_event_phy_down(struct pm8001_hba_info *pm8001_ha, void *piomb) struct pm8001_port *port = &pm8001_ha->port[port_id]; struct pm8001_phy *phy = &pm8001_ha->phy[phy_id]; port->port_state = portstate; - phy->phy_type = 0; phy->identify.device_type = 0; phy->phy_attached = 0; memset(&phy->dev_sas_addr, 0, SAS_ADDR_SIZE); @@ -2993,9 +3043,13 @@ hw_event_phy_down(struct pm8001_hba_info *pm8001_ha, void *piomb) pm8001_printk(" PortInvalid portID %d\n", port_id)); PM8001_MSG_DBG(pm8001_ha, pm8001_printk(" Last phy Down and port invalid\n")); - port->port_attached = 0; - pm80xx_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_PHY_DOWN, - port_id, phy_id, 0, 0); + if (phy->phy_type & PORT_TYPE_SATA) { + phy->phy_type = 0; + port->port_attached = 0; + pm80xx_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_PHY_DOWN, + port_id, phy_id, 0, 0); + } + sas_phy_disconnected(&phy->sas_phy); break; case PORT_IN_RESET: PM8001_MSG_DBG(pm8001_ha, @@ -3003,22 +3057,26 @@ hw_event_phy_down(struct pm8001_hba_info *pm8001_ha, void *piomb) break; case PORT_NOT_ESTABLISHED: PM8001_MSG_DBG(pm8001_ha, - pm8001_printk(" phy Down and PORT_NOT_ESTABLISHED\n")); + pm8001_printk(" Phy Down and PORT_NOT_ESTABLISHED\n")); port->port_attached = 0; break; case PORT_LOSTCOMM: PM8001_MSG_DBG(pm8001_ha, - pm8001_printk(" phy Down and PORT_LOSTCOMM\n")); + pm8001_printk(" Phy Down and PORT_LOSTCOMM\n")); PM8001_MSG_DBG(pm8001_ha, pm8001_printk(" Last phy Down and port invalid\n")); - port->port_attached = 0; - pm80xx_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_PHY_DOWN, - port_id, phy_id, 0, 0); + if (phy->phy_type & PORT_TYPE_SATA) { + port->port_attached = 0; + phy->phy_type = 0; + pm80xx_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_PHY_DOWN, + port_id, phy_id, 0, 0); + } + sas_phy_disconnected(&phy->sas_phy); break; default: port->port_attached = 0; PM8001_MSG_DBG(pm8001_ha, - pm8001_printk(" phy Down and(default) = 0x%x\n", + pm8001_printk(" Phy Down and(default) = 0x%x\n", portstate)); break; @@ -3084,7 +3142,7 @@ static int mpi_thermal_hw_event(struct pm8001_hba_info *pm8001_ha, void *piomb) */ static int mpi_hw_event(struct pm8001_hba_info *pm8001_ha, void *piomb) { - unsigned long flags; + unsigned long flags, i; struct hw_event_resp *pPayload = (struct hw_event_resp *)(piomb + 4); u32 lr_status_evt_portid = @@ -3097,9 +3155,9 @@ static int mpi_hw_event(struct pm8001_hba_info *pm8001_ha, void *piomb) (u16)((lr_status_evt_portid & 0x00FFFF00) >> 8); u8 status = (u8)((lr_status_evt_portid & 0x0F000000) >> 24); - struct sas_ha_struct *sas_ha = pm8001_ha->sas; struct pm8001_phy *phy = &pm8001_ha->phy[phy_id]; + struct pm8001_port *port = &pm8001_ha->port[port_id]; struct asd_sas_phy *sas_phy = sas_ha->sas_phy[phy_id]; PM8001_MSG_DBG(pm8001_ha, pm8001_printk("portid:%d phyid:%d event:0x%x status:0x%x\n", @@ -3125,7 +3183,9 @@ static int mpi_hw_event(struct pm8001_hba_info *pm8001_ha, void *piomb) case HW_EVENT_PHY_DOWN: PM8001_MSG_DBG(pm8001_ha, pm8001_printk("HW_EVENT_PHY_DOWN\n")); - sas_ha->notify_phy_event(&phy->sas_phy, PHYE_LOSS_OF_SIGNAL); + if (phy->phy_type & PORT_TYPE_SATA) + sas_ha->notify_phy_event(&phy->sas_phy, + PHYE_LOSS_OF_SIGNAL); phy->phy_attached = 0; phy->phy_state = 0; hw_event_phy_down(pm8001_ha, piomb); @@ -3169,9 +3229,6 @@ static int mpi_hw_event(struct pm8001_hba_info *pm8001_ha, void *piomb) pm8001_printk("HW_EVENT_LINK_ERR_INVALID_DWORD\n")); pm80xx_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_LINK_ERR_INVALID_DWORD, port_id, phy_id, 0, 0); - sas_phy_disconnected(sas_phy); - phy->phy_attached = 0; - sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR); break; case HW_EVENT_LINK_ERR_DISPARITY_ERROR: PM8001_MSG_DBG(pm8001_ha, @@ -3179,9 +3236,6 @@ static int mpi_hw_event(struct pm8001_hba_info *pm8001_ha, void *piomb) pm80xx_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_LINK_ERR_DISPARITY_ERROR, port_id, phy_id, 0, 0); - sas_phy_disconnected(sas_phy); - phy->phy_attached = 0; - sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR); break; case HW_EVENT_LINK_ERR_CODE_VIOLATION: PM8001_MSG_DBG(pm8001_ha, @@ -3189,9 +3243,6 @@ static int mpi_hw_event(struct pm8001_hba_info *pm8001_ha, void *piomb) pm80xx_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_LINK_ERR_CODE_VIOLATION, port_id, phy_id, 0, 0); - sas_phy_disconnected(sas_phy); - phy->phy_attached = 0; - sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR); break; case HW_EVENT_LINK_ERR_LOSS_OF_DWORD_SYNCH: PM8001_MSG_DBG(pm8001_ha, pm8001_printk( @@ -3199,9 +3250,6 @@ static int mpi_hw_event(struct pm8001_hba_info *pm8001_ha, void *piomb) pm80xx_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_LINK_ERR_LOSS_OF_DWORD_SYNCH, port_id, phy_id, 0, 0); - sas_phy_disconnected(sas_phy); - phy->phy_attached = 0; - sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR); break; case HW_EVENT_MALFUNCTION: PM8001_MSG_DBG(pm8001_ha, @@ -3257,13 +3305,19 @@ static int mpi_hw_event(struct pm8001_hba_info *pm8001_ha, void *piomb) pm80xx_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_PORT_RECOVERY_TIMER_TMO, port_id, phy_id, 0, 0); - sas_phy_disconnected(sas_phy); - phy->phy_attached = 0; - sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR); + for (i = 0; i < pm8001_ha->chip->n_phy; i++) { + if (port->wide_port_phymap & (1 << i)) { + phy = &pm8001_ha->phy[i]; + sas_ha->notify_phy_event(&phy->sas_phy, + PHYE_LOSS_OF_SIGNAL); + port->wide_port_phymap &= ~(1 << i); + } + } break; case HW_EVENT_PORT_RECOVER: PM8001_MSG_DBG(pm8001_ha, pm8001_printk("HW_EVENT_PORT_RECOVER\n")); + hw_event_port_recover(pm8001_ha, piomb); break; case HW_EVENT_PORT_RESET_COMPLETE: PM8001_MSG_DBG(pm8001_ha, diff --git a/drivers/scsi/pm8001/pm80xx_hwi.h b/drivers/scsi/pm8001/pm80xx_hwi.h index 9970a385795d..7a443bad6163 100644 --- a/drivers/scsi/pm8001/pm80xx_hwi.h +++ b/drivers/scsi/pm8001/pm80xx_hwi.h @@ -177,7 +177,8 @@ /* Thermal related */ #define THERMAL_ENABLE 0x1 #define THERMAL_LOG_ENABLE 0x1 -#define THERMAL_OP_CODE 0x6 +#define THERMAL_PAGE_CODE_7H 0x6 +#define THERMAL_PAGE_CODE_8H 0x7 #define LTEMPHIL 70 #define RTEMPHIL 100 @@ -1174,7 +1175,7 @@ typedef struct SASProtocolTimerConfig SASProtocolTimerConfig_t; #define IO_XFER_ERROR_INTERNAL_CRC_ERROR 0x54 #define MPI_IO_RQE_BUSY_FULL 0x55 #define IO_XFER_ERR_EOB_DATA_OVERRUN 0x56 -#define IO_XFR_ERROR_INVALID_SSP_RSP_FRAME 0x57 +#define IO_XFER_ERROR_INVALID_SSP_RSP_FRAME 0x57 #define IO_OPEN_CNX_ERROR_OPEN_PREEMPTED 0x58 #define MPI_ERR_IO_RESOURCE_UNAVAILABLE 0x1004 diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c index 82b92c414a9c..6b942d9e5b74 100644 --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -738,7 +738,7 @@ qla2x00_sysfs_write_reset(struct file *filp, struct kobject *kobj, ql_log(ql_log_info, vha, 0x706f, "Issuing MPI reset.\n"); - if (IS_QLA83XX(ha)) { + if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) { uint32_t idc_control; qla83xx_idc_lock(vha, 0); @@ -884,7 +884,6 @@ qla2x00_sysfs_read_dcbx_tlv(struct file *filp, struct kobject *kobj, struct device, kobj))); struct qla_hw_data *ha = vha->hw; int rval; - uint16_t actual_size; if (!capable(CAP_SYS_ADMIN) || off != 0 || count > DCBX_TLV_DATA_SIZE) return 0; @@ -901,7 +900,6 @@ qla2x00_sysfs_read_dcbx_tlv(struct file *filp, struct kobject *kobj, } do_read: - actual_size = 0; memset(ha->dcbx_tlv, 0, DCBX_TLV_DATA_SIZE); rval = qla2x00_get_dcbx_params(vha, ha->dcbx_tlv_dma, @@ -1079,8 +1077,7 @@ qla2x00_model_desc_show(struct device *dev, struct device_attribute *attr, char *buf) { scsi_qla_host_t *vha = shost_priv(class_to_shost(dev)); - return scnprintf(buf, PAGE_SIZE, "%s\n", - vha->hw->model_desc ? vha->hw->model_desc : ""); + return scnprintf(buf, PAGE_SIZE, "%s\n", vha->hw->model_desc); } static ssize_t @@ -1348,7 +1345,8 @@ qla2x00_mpi_version_show(struct device *dev, struct device_attribute *attr, scsi_qla_host_t *vha = shost_priv(class_to_shost(dev)); struct qla_hw_data *ha = vha->hw; - if (!IS_QLA81XX(ha) && !IS_QLA8031(ha) && !IS_QLA8044(ha)) + if (!IS_QLA81XX(ha) && !IS_QLA8031(ha) && !IS_QLA8044(ha) && + !IS_QLA27XX(ha)) return scnprintf(buf, PAGE_SIZE, "\n"); return scnprintf(buf, PAGE_SIZE, "%d.%02d.%02d (%x)\n", @@ -1537,6 +1535,20 @@ qla2x00_allow_cna_fw_dump_store(struct device *dev, return strlen(buf); } +static ssize_t +qla2x00_pep_version_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + scsi_qla_host_t *vha = shost_priv(class_to_shost(dev)); + struct qla_hw_data *ha = vha->hw; + + if (!IS_QLA27XX(ha)) + return scnprintf(buf, PAGE_SIZE, "\n"); + + return scnprintf(buf, PAGE_SIZE, "%d.%02d.%02d\n", + ha->pep_version[0], ha->pep_version[1], ha->pep_version[2]); +} + static DEVICE_ATTR(driver_version, S_IRUGO, qla2x00_drvr_version_show, NULL); static DEVICE_ATTR(fw_version, S_IRUGO, qla2x00_fw_version_show, NULL); static DEVICE_ATTR(serial_num, S_IRUGO, qla2x00_serial_num_show, NULL); @@ -1581,6 +1593,7 @@ static DEVICE_ATTR(fw_dump_size, S_IRUGO, qla2x00_fw_dump_size_show, NULL); static DEVICE_ATTR(allow_cna_fw_dump, S_IRUGO | S_IWUSR, qla2x00_allow_cna_fw_dump_show, qla2x00_allow_cna_fw_dump_store); +static DEVICE_ATTR(pep_version, S_IRUGO, qla2x00_pep_version_show, NULL); struct device_attribute *qla2x00_host_attrs[] = { &dev_attr_driver_version, @@ -1614,6 +1627,7 @@ struct device_attribute *qla2x00_host_attrs[] = { &dev_attr_diag_megabytes, &dev_attr_fw_dump_size, &dev_attr_allow_cna_fw_dump, + &dev_attr_pep_version, NULL, }; diff --git a/drivers/scsi/qla2xxx/qla_bsg.c b/drivers/scsi/qla2xxx/qla_bsg.c index 2e2bb6f45ce6..c26acde797f0 100644 --- a/drivers/scsi/qla2xxx/qla_bsg.c +++ b/drivers/scsi/qla2xxx/qla_bsg.c @@ -405,7 +405,7 @@ done: return rval; } -inline uint16_t +static inline uint16_t qla24xx_calc_ct_iocbs(uint16_t dsds) { uint16_t iocbs; @@ -1733,7 +1733,6 @@ qla24xx_process_bidir_cmd(struct fc_bsg_job *bsg_job) struct Scsi_Host *host = bsg_job->shost; scsi_qla_host_t *vha = shost_priv(host); struct qla_hw_data *ha = vha->hw; - uint16_t thread_id; uint32_t rval = EXT_STATUS_OK; uint16_t req_sg_cnt = 0; uint16_t rsp_sg_cnt = 0; @@ -1790,8 +1789,6 @@ qla24xx_process_bidir_cmd(struct fc_bsg_job *bsg_job) goto done; } - thread_id = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1]; - mutex_lock(&ha->selflogin_lock); if (vha->self_login_loop_id == 0) { /* Initialize all required fields of fcport */ @@ -2174,7 +2171,6 @@ qla24xx_bsg_request(struct fc_bsg_job *bsg_job) { int ret = -EINVAL; struct fc_rport *rport; - fc_port_t *fcport = NULL; struct Scsi_Host *host; scsi_qla_host_t *vha; @@ -2183,7 +2179,6 @@ qla24xx_bsg_request(struct fc_bsg_job *bsg_job) if (bsg_job->request->msgcode == FC_BSG_RPT_ELS) { rport = bsg_job->rport; - fcport = *(fc_port_t **) rport->dd_data; host = rport_to_shost(rport); vha = shost_priv(host); } else { diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c index 0e6ee3ca30e6..34dc9a35670b 100644 --- a/drivers/scsi/qla2xxx/qla_dbg.c +++ b/drivers/scsi/qla2xxx/qla_dbg.c @@ -19,14 +19,14 @@ * | Device Discovery | 0x2016 | 0x2020-0x2022, | * | | | 0x2011-0x2012, | * | | | 0x2099-0x20a4 | - * | Queue Command and IO tracing | 0x3059 | 0x300b | + * | Queue Command and IO tracing | 0x3075 | 0x300b | * | | | 0x3027-0x3028 | * | | | 0x303d-0x3041 | * | | | 0x302d,0x3033 | * | | | 0x3036,0x3038 | * | | | 0x303a | * | DPC Thread | 0x4023 | 0x4002,0x4013 | - * | Async Events | 0x5087 | 0x502b-0x502f | + * | Async Events | 0x508a | 0x502b-0x502f | * | | | 0x5047 | * | | | 0x5084,0x5075 | * | | | 0x503d,0x5044 | @@ -67,10 +67,10 @@ * | | | 0xd031-0xd0ff | * | | | 0xd101-0xd1fe | * | | | 0xd214-0xd2fe | - * | Target Mode | 0xe079 | | - * | Target Mode Management | 0xf072 | 0xf002 | + * | Target Mode | 0xe080 | | + * | Target Mode Management | 0xf096 | 0xf002 | * | | | 0xf046-0xf049 | - * | Target Mode Task Management | 0x1000b | | + * | Target Mode Task Management | 0x1000d | | * ---------------------------------------------------------------------- */ @@ -117,7 +117,7 @@ qla27xx_dump_mpi_ram(struct qla_hw_data *ha, uint32_t addr, uint32_t *ram, { int rval; uint32_t cnt, stat, timer, dwords, idx; - uint16_t mb0, mb1; + uint16_t mb0; struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; dma_addr_t dump_dma = ha->gid_list_dma; uint32_t *dump = (uint32_t *)ha->gid_list; @@ -161,7 +161,7 @@ qla27xx_dump_mpi_ram(struct qla_hw_data *ha, uint32_t addr, uint32_t *ram, &ha->mbx_cmd_flags); mb0 = RD_REG_WORD(®->mailbox0); - mb1 = RD_REG_WORD(®->mailbox1); + RD_REG_WORD(®->mailbox1); WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); @@ -486,7 +486,7 @@ qla25xx_copy_fce(struct qla_hw_data *ha, void *ptr, uint32_t **last_chain) return ptr; *last_chain = &fcec->type; - fcec->type = __constant_htonl(DUMP_CHAIN_FCE); + fcec->type = htonl(DUMP_CHAIN_FCE); fcec->chain_size = htonl(sizeof(struct qla2xxx_fce_chain) + fce_calc_size(ha->fce_bufs)); fcec->size = htonl(fce_calc_size(ha->fce_bufs)); @@ -527,7 +527,7 @@ qla2xxx_copy_atioqueues(struct qla_hw_data *ha, void *ptr, /* aqp = ha->atio_q_map[que]; */ q = ptr; *last_chain = &q->type; - q->type = __constant_htonl(DUMP_CHAIN_QUEUE); + q->type = htonl(DUMP_CHAIN_QUEUE); q->chain_size = htonl( sizeof(struct qla2xxx_mqueue_chain) + sizeof(struct qla2xxx_mqueue_header) + @@ -536,7 +536,7 @@ qla2xxx_copy_atioqueues(struct qla_hw_data *ha, void *ptr, /* Add header. */ qh = ptr; - qh->queue = __constant_htonl(TYPE_ATIO_QUEUE); + qh->queue = htonl(TYPE_ATIO_QUEUE); qh->number = htonl(que); qh->size = htonl(aqp->length * sizeof(request_t)); ptr += sizeof(struct qla2xxx_mqueue_header); @@ -571,7 +571,7 @@ qla25xx_copy_mqueues(struct qla_hw_data *ha, void *ptr, uint32_t **last_chain) /* Add chain. */ q = ptr; *last_chain = &q->type; - q->type = __constant_htonl(DUMP_CHAIN_QUEUE); + q->type = htonl(DUMP_CHAIN_QUEUE); q->chain_size = htonl( sizeof(struct qla2xxx_mqueue_chain) + sizeof(struct qla2xxx_mqueue_header) + @@ -580,7 +580,7 @@ qla25xx_copy_mqueues(struct qla_hw_data *ha, void *ptr, uint32_t **last_chain) /* Add header. */ qh = ptr; - qh->queue = __constant_htonl(TYPE_REQUEST_QUEUE); + qh->queue = htonl(TYPE_REQUEST_QUEUE); qh->number = htonl(que); qh->size = htonl(req->length * sizeof(request_t)); ptr += sizeof(struct qla2xxx_mqueue_header); @@ -599,7 +599,7 @@ qla25xx_copy_mqueues(struct qla_hw_data *ha, void *ptr, uint32_t **last_chain) /* Add chain. */ q = ptr; *last_chain = &q->type; - q->type = __constant_htonl(DUMP_CHAIN_QUEUE); + q->type = htonl(DUMP_CHAIN_QUEUE); q->chain_size = htonl( sizeof(struct qla2xxx_mqueue_chain) + sizeof(struct qla2xxx_mqueue_header) + @@ -608,7 +608,7 @@ qla25xx_copy_mqueues(struct qla_hw_data *ha, void *ptr, uint32_t **last_chain) /* Add header. */ qh = ptr; - qh->queue = __constant_htonl(TYPE_RESPONSE_QUEUE); + qh->queue = htonl(TYPE_RESPONSE_QUEUE); qh->number = htonl(que); qh->size = htonl(rsp->length * sizeof(response_t)); ptr += sizeof(struct qla2xxx_mqueue_header); @@ -627,15 +627,15 @@ qla25xx_copy_mq(struct qla_hw_data *ha, void *ptr, uint32_t **last_chain) uint32_t cnt, que_idx; uint8_t que_cnt; struct qla2xxx_mq_chain *mq = ptr; - device_reg_t __iomem *reg; + device_reg_t *reg; if (!ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha)) return ptr; mq = ptr; *last_chain = &mq->type; - mq->type = __constant_htonl(DUMP_CHAIN_MQ); - mq->chain_size = __constant_htonl(sizeof(struct qla2xxx_mq_chain)); + mq->type = htonl(DUMP_CHAIN_MQ); + mq->chain_size = htonl(sizeof(struct qla2xxx_mq_chain)); que_cnt = ha->max_req_queues > ha->max_rsp_queues ? ha->max_req_queues : ha->max_rsp_queues; @@ -695,8 +695,10 @@ qla2300_fw_dump(scsi_qla_host_t *vha, int hardware_locked) flags = 0; +#ifndef __CHECKER__ if (!hardware_locked) spin_lock_irqsave(&ha->hardware_lock, flags); +#endif if (!ha->fw_dump) { ql_log(ql_log_warn, vha, 0xd002, @@ -832,8 +834,12 @@ qla2300_fw_dump(scsi_qla_host_t *vha, int hardware_locked) qla2xxx_dump_post_process(base_vha, rval); qla2300_fw_dump_failed: +#ifndef __CHECKER__ if (!hardware_locked) spin_unlock_irqrestore(&ha->hardware_lock, flags); +#else + ; +#endif } /** @@ -859,8 +865,10 @@ qla2100_fw_dump(scsi_qla_host_t *vha, int hardware_locked) mb0 = mb2 = 0; flags = 0; +#ifndef __CHECKER__ if (!hardware_locked) spin_lock_irqsave(&ha->hardware_lock, flags); +#endif if (!ha->fw_dump) { ql_log(ql_log_warn, vha, 0xd004, @@ -1030,8 +1038,12 @@ qla2100_fw_dump(scsi_qla_host_t *vha, int hardware_locked) qla2xxx_dump_post_process(base_vha, rval); qla2100_fw_dump_failed: +#ifndef __CHECKER__ if (!hardware_locked) spin_unlock_irqrestore(&ha->hardware_lock, flags); +#else + ; +#endif } void @@ -1039,7 +1051,6 @@ qla24xx_fw_dump(scsi_qla_host_t *vha, int hardware_locked) { int rval; uint32_t cnt; - uint32_t risc_address; struct qla_hw_data *ha = vha->hw; struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; uint32_t __iomem *dmp_reg; @@ -1047,7 +1058,6 @@ qla24xx_fw_dump(scsi_qla_host_t *vha, int hardware_locked) uint16_t __iomem *mbx_reg; unsigned long flags; struct qla24xx_fw_dump *fw; - uint32_t ext_mem_cnt; void *nxt; void *nxt_chain; uint32_t *last_chain = NULL; @@ -1056,12 +1066,13 @@ qla24xx_fw_dump(scsi_qla_host_t *vha, int hardware_locked) if (IS_P3P_TYPE(ha)) return; - risc_address = ext_mem_cnt = 0; flags = 0; ha->fw_dump_cap_flags = 0; +#ifndef __CHECKER__ if (!hardware_locked) spin_lock_irqsave(&ha->hardware_lock, flags); +#endif if (!ha->fw_dump) { ql_log(ql_log_warn, vha, 0xd006, @@ -1274,8 +1285,8 @@ qla24xx_fw_dump(scsi_qla_host_t *vha, int hardware_locked) nxt_chain = (void *)ha->fw_dump + ha->chain_offset; nxt_chain = qla2xxx_copy_atioqueues(ha, nxt_chain, &last_chain); if (last_chain) { - ha->fw_dump->version |= __constant_htonl(DUMP_CHAIN_VARIANT); - *last_chain |= __constant_htonl(DUMP_CHAIN_LAST); + ha->fw_dump->version |= htonl(DUMP_CHAIN_VARIANT); + *last_chain |= htonl(DUMP_CHAIN_LAST); } /* Adjust valid length. */ @@ -1285,8 +1296,12 @@ qla24xx_fw_dump_failed_0: qla2xxx_dump_post_process(base_vha, rval); qla24xx_fw_dump_failed: +#ifndef __CHECKER__ if (!hardware_locked) spin_unlock_irqrestore(&ha->hardware_lock, flags); +#else + ; +#endif } void @@ -1294,7 +1309,6 @@ qla25xx_fw_dump(scsi_qla_host_t *vha, int hardware_locked) { int rval; uint32_t cnt; - uint32_t risc_address; struct qla_hw_data *ha = vha->hw; struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; uint32_t __iomem *dmp_reg; @@ -1302,17 +1316,17 @@ qla25xx_fw_dump(scsi_qla_host_t *vha, int hardware_locked) uint16_t __iomem *mbx_reg; unsigned long flags; struct qla25xx_fw_dump *fw; - uint32_t ext_mem_cnt; void *nxt, *nxt_chain; uint32_t *last_chain = NULL; struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); - risc_address = ext_mem_cnt = 0; flags = 0; ha->fw_dump_cap_flags = 0; +#ifndef __CHECKER__ if (!hardware_locked) spin_lock_irqsave(&ha->hardware_lock, flags); +#endif if (!ha->fw_dump) { ql_log(ql_log_warn, vha, 0xd008, @@ -1329,7 +1343,7 @@ qla25xx_fw_dump(scsi_qla_host_t *vha, int hardware_locked) } fw = &ha->fw_dump->isp.isp25; qla2xxx_prep_dump(ha, ha->fw_dump); - ha->fw_dump->version = __constant_htonl(2); + ha->fw_dump->version = htonl(2); fw->host_status = htonl(RD_REG_DWORD(®->host_status)); @@ -1593,8 +1607,8 @@ qla25xx_fw_dump(scsi_qla_host_t *vha, int hardware_locked) nxt_chain = qla25xx_copy_mqueues(ha, nxt_chain, &last_chain); nxt_chain = qla2xxx_copy_atioqueues(ha, nxt_chain, &last_chain); if (last_chain) { - ha->fw_dump->version |= __constant_htonl(DUMP_CHAIN_VARIANT); - *last_chain |= __constant_htonl(DUMP_CHAIN_LAST); + ha->fw_dump->version |= htonl(DUMP_CHAIN_VARIANT); + *last_chain |= htonl(DUMP_CHAIN_LAST); } /* Adjust valid length. */ @@ -1604,8 +1618,12 @@ qla25xx_fw_dump_failed_0: qla2xxx_dump_post_process(base_vha, rval); qla25xx_fw_dump_failed: +#ifndef __CHECKER__ if (!hardware_locked) spin_unlock_irqrestore(&ha->hardware_lock, flags); +#else + ; +#endif } void @@ -1613,7 +1631,6 @@ qla81xx_fw_dump(scsi_qla_host_t *vha, int hardware_locked) { int rval; uint32_t cnt; - uint32_t risc_address; struct qla_hw_data *ha = vha->hw; struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; uint32_t __iomem *dmp_reg; @@ -1621,17 +1638,17 @@ qla81xx_fw_dump(scsi_qla_host_t *vha, int hardware_locked) uint16_t __iomem *mbx_reg; unsigned long flags; struct qla81xx_fw_dump *fw; - uint32_t ext_mem_cnt; void *nxt, *nxt_chain; uint32_t *last_chain = NULL; struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); - risc_address = ext_mem_cnt = 0; flags = 0; ha->fw_dump_cap_flags = 0; +#ifndef __CHECKER__ if (!hardware_locked) spin_lock_irqsave(&ha->hardware_lock, flags); +#endif if (!ha->fw_dump) { ql_log(ql_log_warn, vha, 0xd00a, @@ -1914,8 +1931,8 @@ qla81xx_fw_dump(scsi_qla_host_t *vha, int hardware_locked) nxt_chain = qla25xx_copy_mqueues(ha, nxt_chain, &last_chain); nxt_chain = qla2xxx_copy_atioqueues(ha, nxt_chain, &last_chain); if (last_chain) { - ha->fw_dump->version |= __constant_htonl(DUMP_CHAIN_VARIANT); - *last_chain |= __constant_htonl(DUMP_CHAIN_LAST); + ha->fw_dump->version |= htonl(DUMP_CHAIN_VARIANT); + *last_chain |= htonl(DUMP_CHAIN_LAST); } /* Adjust valid length. */ @@ -1925,16 +1942,19 @@ qla81xx_fw_dump_failed_0: qla2xxx_dump_post_process(base_vha, rval); qla81xx_fw_dump_failed: +#ifndef __CHECKER__ if (!hardware_locked) spin_unlock_irqrestore(&ha->hardware_lock, flags); +#else + ; +#endif } void qla83xx_fw_dump(scsi_qla_host_t *vha, int hardware_locked) { int rval; - uint32_t cnt, reg_data; - uint32_t risc_address; + uint32_t cnt; struct qla_hw_data *ha = vha->hw; struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; uint32_t __iomem *dmp_reg; @@ -1942,17 +1962,17 @@ qla83xx_fw_dump(scsi_qla_host_t *vha, int hardware_locked) uint16_t __iomem *mbx_reg; unsigned long flags; struct qla83xx_fw_dump *fw; - uint32_t ext_mem_cnt; void *nxt, *nxt_chain; uint32_t *last_chain = NULL; struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); - risc_address = ext_mem_cnt = 0; flags = 0; ha->fw_dump_cap_flags = 0; +#ifndef __CHECKER__ if (!hardware_locked) spin_lock_irqsave(&ha->hardware_lock, flags); +#endif if (!ha->fw_dump) { ql_log(ql_log_warn, vha, 0xd00c, @@ -1979,16 +1999,16 @@ qla83xx_fw_dump(scsi_qla_host_t *vha, int hardware_locked) WRT_REG_DWORD(®->iobase_addr, 0x6000); dmp_reg = ®->iobase_window; - reg_data = RD_REG_DWORD(dmp_reg); + RD_REG_DWORD(dmp_reg); WRT_REG_DWORD(dmp_reg, 0); dmp_reg = ®->unused_4_1[0]; - reg_data = RD_REG_DWORD(dmp_reg); + RD_REG_DWORD(dmp_reg); WRT_REG_DWORD(dmp_reg, 0); WRT_REG_DWORD(®->iobase_addr, 0x6010); dmp_reg = ®->unused_4_1[2]; - reg_data = RD_REG_DWORD(dmp_reg); + RD_REG_DWORD(dmp_reg); WRT_REG_DWORD(dmp_reg, 0); /* select PCR and disable ecc checking and correction */ @@ -2420,8 +2440,8 @@ copy_queue: nxt_chain = qla25xx_copy_mqueues(ha, nxt_chain, &last_chain); nxt_chain = qla2xxx_copy_atioqueues(ha, nxt_chain, &last_chain); if (last_chain) { - ha->fw_dump->version |= __constant_htonl(DUMP_CHAIN_VARIANT); - *last_chain |= __constant_htonl(DUMP_CHAIN_LAST); + ha->fw_dump->version |= htonl(DUMP_CHAIN_VARIANT); + *last_chain |= htonl(DUMP_CHAIN_LAST); } /* Adjust valid length. */ @@ -2431,8 +2451,12 @@ qla83xx_fw_dump_failed_0: qla2xxx_dump_post_process(base_vha, rval); qla83xx_fw_dump_failed: +#ifndef __CHECKER__ if (!hardware_locked) spin_unlock_irqrestore(&ha->hardware_lock, flags); +#else + ; +#endif } /****************************************************************************/ diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index e86201d3b8c6..388d79088b59 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -274,6 +274,7 @@ #define RESPONSE_ENTRY_CNT_FX00 256 /* Number of response entries.*/ struct req_que; +struct qla_tgt_sess; /* * (sd.h is not exported, hence local inclusion) @@ -2026,6 +2027,7 @@ typedef struct fc_port { uint16_t port_id; unsigned long retry_delay_timestamp; + struct qla_tgt_sess *tgt_session; } fc_port_t; #include "qla_mr.h" @@ -3059,6 +3061,7 @@ struct qla_hw_data { #define PCI_DEVICE_ID_QLOGIC_ISP2031 0x2031 #define PCI_DEVICE_ID_QLOGIC_ISP2071 0x2071 #define PCI_DEVICE_ID_QLOGIC_ISP2271 0x2271 +#define PCI_DEVICE_ID_QLOGIC_ISP2261 0x2261 uint32_t device_type; #define DT_ISP2100 BIT_0 @@ -3082,7 +3085,8 @@ struct qla_hw_data { #define DT_ISP8044 BIT_18 #define DT_ISP2071 BIT_19 #define DT_ISP2271 BIT_20 -#define DT_ISP_LAST (DT_ISP2271 << 1) +#define DT_ISP2261 BIT_21 +#define DT_ISP_LAST (DT_ISP2261 << 1) #define DT_T10_PI BIT_25 #define DT_IIDMA BIT_26 @@ -3114,6 +3118,7 @@ struct qla_hw_data { #define IS_QLAFX00(ha) (DT_MASK(ha) & DT_ISPFX00) #define IS_QLA2071(ha) (DT_MASK(ha) & DT_ISP2071) #define IS_QLA2271(ha) (DT_MASK(ha) & DT_ISP2271) +#define IS_QLA2261(ha) (DT_MASK(ha) & DT_ISP2261) #define IS_QLA23XX(ha) (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA2322(ha) || \ IS_QLA6312(ha) || IS_QLA6322(ha)) @@ -3122,7 +3127,7 @@ struct qla_hw_data { #define IS_QLA25XX(ha) (IS_QLA2532(ha)) #define IS_QLA83XX(ha) (IS_QLA2031(ha) || IS_QLA8031(ha)) #define IS_QLA84XX(ha) (IS_QLA8432(ha)) -#define IS_QLA27XX(ha) (IS_QLA2071(ha) || IS_QLA2271(ha)) +#define IS_QLA27XX(ha) (IS_QLA2071(ha) || IS_QLA2271(ha) || IS_QLA2261(ha)) #define IS_QLA24XX_TYPE(ha) (IS_QLA24XX(ha) || IS_QLA54XX(ha) || \ IS_QLA84XX(ha)) #define IS_CNA_CAPABLE(ha) (IS_QLA81XX(ha) || IS_QLA82XX(ha) || \ @@ -3154,16 +3159,17 @@ struct qla_hw_data { /* Bit 21 of fw_attributes decides the MCTP capabilities */ #define IS_MCTP_CAPABLE(ha) (IS_QLA2031(ha) && \ ((ha)->fw_attributes_ext[0] & BIT_0)) -#define IS_PI_UNINIT_CAPABLE(ha) (IS_QLA83XX(ha)) -#define IS_PI_IPGUARD_CAPABLE(ha) (IS_QLA83XX(ha)) +#define IS_PI_UNINIT_CAPABLE(ha) (IS_QLA83XX(ha) || IS_QLA27XX(ha)) +#define IS_PI_IPGUARD_CAPABLE(ha) (IS_QLA83XX(ha) || IS_QLA27XX(ha)) #define IS_PI_DIFB_DIX0_CAPABLE(ha) (0) -#define IS_PI_SPLIT_DET_CAPABLE_HBA(ha) (IS_QLA83XX(ha)) +#define IS_PI_SPLIT_DET_CAPABLE_HBA(ha) (IS_QLA83XX(ha) || IS_QLA27XX(ha)) #define IS_PI_SPLIT_DET_CAPABLE(ha) (IS_PI_SPLIT_DET_CAPABLE_HBA(ha) && \ (((ha)->fw_attributes_h << 16 | (ha)->fw_attributes) & BIT_22)) -#define IS_ATIO_MSIX_CAPABLE(ha) (IS_QLA83XX(ha)) +#define IS_ATIO_MSIX_CAPABLE(ha) (IS_QLA83XX(ha) || IS_QLA27XX(ha)) #define IS_TGT_MODE_CAPABLE(ha) (ha->tgt.atio_q_length) #define IS_SHADOW_REG_CAPABLE(ha) (IS_QLA27XX(ha)) #define IS_DPORT_CAPABLE(ha) (IS_QLA83XX(ha) || IS_QLA27XX(ha)) +#define IS_FAWWN_CAPABLE(ha) (IS_QLA83XX(ha) || IS_QLA27XX(ha)) /* HBA serial number */ uint8_t serial0; @@ -3286,6 +3292,7 @@ struct qla_hw_data { uint8_t mpi_version[3]; uint32_t mpi_capabilities; uint8_t phy_version[3]; + uint8_t pep_version[3]; /* Firmware dump template */ void *fw_dump_template; @@ -3418,9 +3425,9 @@ struct qla_hw_data { mempool_t *ctx_mempool; #define FCP_CMND_DMA_POOL_SIZE 512 - unsigned long nx_pcibase; /* Base I/O address */ - uint8_t *nxdb_rd_ptr; /* Doorbell read pointer */ - unsigned long nxdb_wr_ptr; /* Door bell write pointer */ + void __iomem *nx_pcibase; /* Base I/O address */ + void __iomem *nxdb_rd_ptr; /* Doorbell read pointer */ + void __iomem *nxdb_wr_ptr; /* Door bell write pointer */ uint32_t crb_win; uint32_t curr_window; @@ -3579,6 +3586,16 @@ typedef struct scsi_qla_host { uint16_t fcoe_fcf_idx; uint8_t fcoe_vn_port_mac[6]; + /* list of commands waiting on workqueue */ + struct list_head qla_cmd_list; + struct list_head qla_sess_op_cmd_list; + spinlock_t cmd_list_lock; + + /* Counter to detect races between ELS and RSCN events */ + atomic_t generation_tick; + /* Time when global fcport update has been scheduled */ + int total_fcport_update_gen; + uint32_t vp_abort_cnt; struct fc_vport *fc_vport; /* holds fc_vport * for each vport */ diff --git a/drivers/scsi/qla2xxx/qla_gs.c b/drivers/scsi/qla2xxx/qla_gs.c index dccc4dcc39c8..94e8a8592f69 100644 --- a/drivers/scsi/qla2xxx/qla_gs.c +++ b/drivers/scsi/qla2xxx/qla_gs.c @@ -35,10 +35,10 @@ qla2x00_prep_ms_iocb(scsi_qla_host_t *vha, uint32_t req_size, uint32_t rsp_size) ms_pkt->entry_type = MS_IOCB_TYPE; ms_pkt->entry_count = 1; SET_TARGET_ID(ha, ms_pkt->loop_id, SIMPLE_NAME_SERVER); - ms_pkt->control_flags = __constant_cpu_to_le16(CF_READ | CF_HEAD_TAG); + ms_pkt->control_flags = cpu_to_le16(CF_READ | CF_HEAD_TAG); ms_pkt->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); - ms_pkt->cmd_dsd_count = __constant_cpu_to_le16(1); - ms_pkt->total_dsd_count = __constant_cpu_to_le16(2); + ms_pkt->cmd_dsd_count = cpu_to_le16(1); + ms_pkt->total_dsd_count = cpu_to_le16(2); ms_pkt->rsp_bytecount = cpu_to_le32(rsp_size); ms_pkt->req_bytecount = cpu_to_le32(req_size); @@ -74,10 +74,10 @@ qla24xx_prep_ms_iocb(scsi_qla_host_t *vha, uint32_t req_size, uint32_t rsp_size) ct_pkt->entry_type = CT_IOCB_TYPE; ct_pkt->entry_count = 1; - ct_pkt->nport_handle = __constant_cpu_to_le16(NPH_SNS); + ct_pkt->nport_handle = cpu_to_le16(NPH_SNS); ct_pkt->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); - ct_pkt->cmd_dsd_count = __constant_cpu_to_le16(1); - ct_pkt->rsp_dsd_count = __constant_cpu_to_le16(1); + ct_pkt->cmd_dsd_count = cpu_to_le16(1); + ct_pkt->rsp_dsd_count = cpu_to_le16(1); ct_pkt->rsp_byte_count = cpu_to_le32(rsp_size); ct_pkt->cmd_byte_count = cpu_to_le32(req_size); @@ -142,7 +142,7 @@ qla2x00_chk_ms_status(scsi_qla_host_t *vha, ms_iocb_entry_t *ms_pkt, case CS_DATA_UNDERRUN: case CS_DATA_OVERRUN: /* Overrun? */ if (ct_rsp->header.response != - __constant_cpu_to_be16(CT_ACCEPT_RESPONSE)) { + cpu_to_be16(CT_ACCEPT_RESPONSE)) { ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x2077, "%s failed rejected request on port_id: %02x%02x%02x Compeltion status 0x%x, response 0x%x\n", routine, vha->d_id.b.domain, @@ -1153,10 +1153,10 @@ qla2x00_prep_ms_fdmi_iocb(scsi_qla_host_t *vha, uint32_t req_size, ms_pkt->entry_type = MS_IOCB_TYPE; ms_pkt->entry_count = 1; SET_TARGET_ID(ha, ms_pkt->loop_id, vha->mgmt_svr_loop_id); - ms_pkt->control_flags = __constant_cpu_to_le16(CF_READ | CF_HEAD_TAG); + ms_pkt->control_flags = cpu_to_le16(CF_READ | CF_HEAD_TAG); ms_pkt->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); - ms_pkt->cmd_dsd_count = __constant_cpu_to_le16(1); - ms_pkt->total_dsd_count = __constant_cpu_to_le16(2); + ms_pkt->cmd_dsd_count = cpu_to_le16(1); + ms_pkt->total_dsd_count = cpu_to_le16(2); ms_pkt->rsp_bytecount = cpu_to_le32(rsp_size); ms_pkt->req_bytecount = cpu_to_le32(req_size); @@ -1193,8 +1193,8 @@ qla24xx_prep_ms_fdmi_iocb(scsi_qla_host_t *vha, uint32_t req_size, ct_pkt->entry_count = 1; ct_pkt->nport_handle = cpu_to_le16(vha->mgmt_svr_loop_id); ct_pkt->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); - ct_pkt->cmd_dsd_count = __constant_cpu_to_le16(1); - ct_pkt->rsp_dsd_count = __constant_cpu_to_le16(1); + ct_pkt->cmd_dsd_count = cpu_to_le16(1); + ct_pkt->rsp_dsd_count = cpu_to_le16(1); ct_pkt->rsp_byte_count = cpu_to_le32(rsp_size); ct_pkt->cmd_byte_count = cpu_to_le32(req_size); @@ -1281,19 +1281,19 @@ qla2x00_fdmi_rhba(scsi_qla_host_t *vha) /* Prepare FDMI command arguments -- attribute block, attributes. */ memcpy(ct_req->req.rhba.hba_identifier, vha->port_name, WWN_SIZE); - ct_req->req.rhba.entry_count = __constant_cpu_to_be32(1); + ct_req->req.rhba.entry_count = cpu_to_be32(1); memcpy(ct_req->req.rhba.port_name, vha->port_name, WWN_SIZE); size = 2 * WWN_SIZE + 4 + 4; /* Attributes */ ct_req->req.rhba.attrs.count = - __constant_cpu_to_be32(FDMI_HBA_ATTR_COUNT); + cpu_to_be32(FDMI_HBA_ATTR_COUNT); entries = ct_req->req.rhba.hba_identifier; /* Nodename. */ eiter = entries + size; - eiter->type = __constant_cpu_to_be16(FDMI_HBA_NODE_NAME); - eiter->len = __constant_cpu_to_be16(4 + WWN_SIZE); + eiter->type = cpu_to_be16(FDMI_HBA_NODE_NAME); + eiter->len = cpu_to_be16(4 + WWN_SIZE); memcpy(eiter->a.node_name, vha->node_name, WWN_SIZE); size += 4 + WWN_SIZE; @@ -1302,7 +1302,7 @@ qla2x00_fdmi_rhba(scsi_qla_host_t *vha) /* Manufacturer. */ eiter = entries + size; - eiter->type = __constant_cpu_to_be16(FDMI_HBA_MANUFACTURER); + eiter->type = cpu_to_be16(FDMI_HBA_MANUFACTURER); alen = strlen(QLA2XXX_MANUFACTURER); snprintf(eiter->a.manufacturer, sizeof(eiter->a.manufacturer), "%s", "QLogic Corporation"); @@ -1315,7 +1315,7 @@ qla2x00_fdmi_rhba(scsi_qla_host_t *vha) /* Serial number. */ eiter = entries + size; - eiter->type = __constant_cpu_to_be16(FDMI_HBA_SERIAL_NUMBER); + eiter->type = cpu_to_be16(FDMI_HBA_SERIAL_NUMBER); if (IS_FWI2_CAPABLE(ha)) qla2xxx_get_vpd_field(vha, "SN", eiter->a.serial_num, sizeof(eiter->a.serial_num)); @@ -1335,7 +1335,7 @@ qla2x00_fdmi_rhba(scsi_qla_host_t *vha) /* Model name. */ eiter = entries + size; - eiter->type = __constant_cpu_to_be16(FDMI_HBA_MODEL); + eiter->type = cpu_to_be16(FDMI_HBA_MODEL); snprintf(eiter->a.model, sizeof(eiter->a.model), "%s", ha->model_number); alen = strlen(eiter->a.model); @@ -1348,7 +1348,7 @@ qla2x00_fdmi_rhba(scsi_qla_host_t *vha) /* Model description. */ eiter = entries + size; - eiter->type = __constant_cpu_to_be16(FDMI_HBA_MODEL_DESCRIPTION); + eiter->type = cpu_to_be16(FDMI_HBA_MODEL_DESCRIPTION); snprintf(eiter->a.model_desc, sizeof(eiter->a.model_desc), "%s", ha->model_desc); alen = strlen(eiter->a.model_desc); @@ -1361,7 +1361,7 @@ qla2x00_fdmi_rhba(scsi_qla_host_t *vha) /* Hardware version. */ eiter = entries + size; - eiter->type = __constant_cpu_to_be16(FDMI_HBA_HARDWARE_VERSION); + eiter->type = cpu_to_be16(FDMI_HBA_HARDWARE_VERSION); if (!IS_FWI2_CAPABLE(ha)) { snprintf(eiter->a.hw_version, sizeof(eiter->a.hw_version), "HW:%s", ha->adapter_id); @@ -1385,7 +1385,7 @@ qla2x00_fdmi_rhba(scsi_qla_host_t *vha) /* Driver version. */ eiter = entries + size; - eiter->type = __constant_cpu_to_be16(FDMI_HBA_DRIVER_VERSION); + eiter->type = cpu_to_be16(FDMI_HBA_DRIVER_VERSION); snprintf(eiter->a.driver_version, sizeof(eiter->a.driver_version), "%s", qla2x00_version_str); alen = strlen(eiter->a.driver_version); @@ -1398,7 +1398,7 @@ qla2x00_fdmi_rhba(scsi_qla_host_t *vha) /* Option ROM version. */ eiter = entries + size; - eiter->type = __constant_cpu_to_be16(FDMI_HBA_OPTION_ROM_VERSION); + eiter->type = cpu_to_be16(FDMI_HBA_OPTION_ROM_VERSION); snprintf(eiter->a.orom_version, sizeof(eiter->a.orom_version), "%d.%02d", ha->bios_revision[1], ha->bios_revision[0]); alen = strlen(eiter->a.orom_version); @@ -1411,7 +1411,7 @@ qla2x00_fdmi_rhba(scsi_qla_host_t *vha) /* Firmware version */ eiter = entries + size; - eiter->type = __constant_cpu_to_be16(FDMI_HBA_FIRMWARE_VERSION); + eiter->type = cpu_to_be16(FDMI_HBA_FIRMWARE_VERSION); ha->isp_ops->fw_version_str(vha, eiter->a.fw_version, sizeof(eiter->a.fw_version)); alen = strlen(eiter->a.fw_version); @@ -2484,8 +2484,8 @@ qla24xx_prep_ms_fm_iocb(scsi_qla_host_t *vha, uint32_t req_size, ct_pkt->entry_count = 1; ct_pkt->nport_handle = cpu_to_le16(vha->mgmt_svr_loop_id); ct_pkt->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); - ct_pkt->cmd_dsd_count = __constant_cpu_to_le16(1); - ct_pkt->rsp_dsd_count = __constant_cpu_to_le16(1); + ct_pkt->cmd_dsd_count = cpu_to_le16(1); + ct_pkt->rsp_dsd_count = cpu_to_le16(1); ct_pkt->rsp_byte_count = cpu_to_le32(rsp_size); ct_pkt->cmd_byte_count = cpu_to_le32(req_size); diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 664013115c9d..16a1935cc9c1 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -115,6 +115,8 @@ qla2x00_async_iocb_timeout(void *data) QLA_LOGIO_LOGIN_RETRIED : 0; qla2x00_post_async_login_done_work(fcport->vha, fcport, lio->u.logio.data); + } else if (sp->type == SRB_LOGOUT_CMD) { + qlt_logo_completion_handler(fcport, QLA_FUNCTION_TIMEOUT); } } @@ -497,7 +499,10 @@ void qla2x00_async_logout_done(struct scsi_qla_host *vha, fc_port_t *fcport, uint16_t *data) { - qla2x00_mark_device_lost(vha, fcport, 1, 0); + /* Don't re-login in target mode */ + if (!fcport->tgt_session) + qla2x00_mark_device_lost(vha, fcport, 1, 0); + qlt_logo_completion_handler(fcport, data[0]); return; } @@ -1127,7 +1132,7 @@ qla24xx_reset_risc(scsi_qla_host_t *vha) unsigned long flags = 0; struct qla_hw_data *ha = vha->hw; struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; - uint32_t cnt, d2; + uint32_t cnt; uint16_t wd; static int abts_cnt; /* ISP abort retry counts */ int rval = QLA_SUCCESS; @@ -1159,7 +1164,7 @@ qla24xx_reset_risc(scsi_qla_host_t *vha) udelay(100); /* Wait for firmware to complete NVRAM accesses. */ - d2 = (uint32_t) RD_REG_WORD(®->mailbox0); + RD_REG_WORD(®->mailbox0); for (cnt = 10000; RD_REG_WORD(®->mailbox0) != 0 && rval == QLA_SUCCESS; cnt--) { barrier(); @@ -1178,7 +1183,7 @@ qla24xx_reset_risc(scsi_qla_host_t *vha) RD_REG_DWORD(®->mailbox0)); /* Wait for soft-reset to complete. */ - d2 = RD_REG_DWORD(®->ctrl_status); + RD_REG_DWORD(®->ctrl_status); for (cnt = 0; cnt < 6000000; cnt++) { barrier(); if ((RD_REG_DWORD(®->ctrl_status) & @@ -1221,7 +1226,7 @@ qla24xx_reset_risc(scsi_qla_host_t *vha) WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_RESET); RD_REG_DWORD(®->hccr); - d2 = (uint32_t) RD_REG_WORD(®->mailbox0); + RD_REG_WORD(®->mailbox0); for (cnt = 6000000; RD_REG_WORD(®->mailbox0) != 0 && rval == QLA_SUCCESS; cnt--) { barrier(); @@ -1272,16 +1277,19 @@ qla25xx_write_risc_sema_reg(scsi_qla_host_t *vha, uint32_t data) static void qla25xx_manipulate_risc_semaphore(scsi_qla_host_t *vha) { - struct qla_hw_data *ha = vha->hw; uint32_t wd32 = 0; uint delta_msec = 100; uint elapsed_msec = 0; uint timeout_msec; ulong n; - if (!IS_QLA25XX(ha) && !IS_QLA2031(ha)) + if (vha->hw->pdev->subsystem_device != 0x0175 && + vha->hw->pdev->subsystem_device != 0x0240) return; + WRT_REG_DWORD(&vha->hw->iobase->isp24.hccr, HCCRX_SET_RISC_PAUSE); + udelay(100); + attempt: timeout_msec = TIMEOUT_SEMAPHORE; n = timeout_msec / delta_msec; @@ -1538,7 +1546,7 @@ qla2x00_alloc_fw_dump(scsi_qla_host_t *vha) mem_size = (ha->fw_memory_size - 0x11000 + 1) * sizeof(uint16_t); } else if (IS_FWI2_CAPABLE(ha)) { - if (IS_QLA83XX(ha)) + if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) fixed_size = offsetof(struct qla83xx_fw_dump, ext_mem); else if (IS_QLA81XX(ha)) fixed_size = offsetof(struct qla81xx_fw_dump, ext_mem); @@ -1550,7 +1558,7 @@ qla2x00_alloc_fw_dump(scsi_qla_host_t *vha) mem_size = (ha->fw_memory_size - 0x100000 + 1) * sizeof(uint32_t); if (ha->mqenable) { - if (!IS_QLA83XX(ha)) + if (!IS_QLA83XX(ha) && !IS_QLA27XX(ha)) mq_size = sizeof(struct qla2xxx_mq_chain); /* * Allocate maximum buffer size for all queues. @@ -1685,7 +1693,7 @@ allocate: ha->fw_dump->signature[1] = 'L'; ha->fw_dump->signature[2] = 'G'; ha->fw_dump->signature[3] = 'C'; - ha->fw_dump->version = __constant_htonl(1); + ha->fw_dump->version = htonl(1); ha->fw_dump->fixed_size = htonl(fixed_size); ha->fw_dump->mem_size = htonl(mem_size); @@ -2065,8 +2073,8 @@ qla2x00_config_rings(struct scsi_qla_host *vha) struct rsp_que *rsp = ha->rsp_q_map[0]; /* Setup ring parameters in initialization control block. */ - ha->init_cb->request_q_outpointer = __constant_cpu_to_le16(0); - ha->init_cb->response_q_inpointer = __constant_cpu_to_le16(0); + ha->init_cb->request_q_outpointer = cpu_to_le16(0); + ha->init_cb->response_q_inpointer = cpu_to_le16(0); ha->init_cb->request_q_length = cpu_to_le16(req->length); ha->init_cb->response_q_length = cpu_to_le16(rsp->length); ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(req->dma)); @@ -2085,7 +2093,7 @@ void qla24xx_config_rings(struct scsi_qla_host *vha) { struct qla_hw_data *ha = vha->hw; - device_reg_t __iomem *reg = ISP_QUE_REG(ha, 0); + device_reg_t *reg = ISP_QUE_REG(ha, 0); struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp; struct qla_msix_entry *msix; struct init_cb_24xx *icb; @@ -2095,8 +2103,8 @@ qla24xx_config_rings(struct scsi_qla_host *vha) /* Setup ring parameters in initialization control block. */ icb = (struct init_cb_24xx *)ha->init_cb; - icb->request_q_outpointer = __constant_cpu_to_le16(0); - icb->response_q_inpointer = __constant_cpu_to_le16(0); + icb->request_q_outpointer = cpu_to_le16(0); + icb->response_q_inpointer = cpu_to_le16(0); icb->request_q_length = cpu_to_le16(req->length); icb->response_q_length = cpu_to_le16(rsp->length); icb->request_q_address[0] = cpu_to_le32(LSD(req->dma)); @@ -2105,18 +2113,17 @@ qla24xx_config_rings(struct scsi_qla_host *vha) icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma)); /* Setup ATIO queue dma pointers for target mode */ - icb->atio_q_inpointer = __constant_cpu_to_le16(0); + icb->atio_q_inpointer = cpu_to_le16(0); icb->atio_q_length = cpu_to_le16(ha->tgt.atio_q_length); icb->atio_q_address[0] = cpu_to_le32(LSD(ha->tgt.atio_dma)); icb->atio_q_address[1] = cpu_to_le32(MSD(ha->tgt.atio_dma)); if (IS_SHADOW_REG_CAPABLE(ha)) - icb->firmware_options_2 |= - __constant_cpu_to_le32(BIT_30|BIT_29); + icb->firmware_options_2 |= cpu_to_le32(BIT_30|BIT_29); if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha)) { - icb->qos = __constant_cpu_to_le16(QLA_DEFAULT_QUE_QOS); - icb->rid = __constant_cpu_to_le16(rid); + icb->qos = cpu_to_le16(QLA_DEFAULT_QUE_QOS); + icb->rid = cpu_to_le16(rid); if (ha->flags.msix_enabled) { msix = &ha->msix_entries[1]; ql_dbg(ql_dbg_init, vha, 0x00fd, @@ -2126,26 +2133,22 @@ qla24xx_config_rings(struct scsi_qla_host *vha) } /* Use alternate PCI bus number */ if (MSB(rid)) - icb->firmware_options_2 |= - __constant_cpu_to_le32(BIT_19); + icb->firmware_options_2 |= cpu_to_le32(BIT_19); /* Use alternate PCI devfn */ if (LSB(rid)) - icb->firmware_options_2 |= - __constant_cpu_to_le32(BIT_18); + icb->firmware_options_2 |= cpu_to_le32(BIT_18); /* Use Disable MSIX Handshake mode for capable adapters */ if ((ha->fw_attributes & BIT_6) && (IS_MSIX_NACK_CAPABLE(ha)) && (ha->flags.msix_enabled)) { - icb->firmware_options_2 &= - __constant_cpu_to_le32(~BIT_22); + icb->firmware_options_2 &= cpu_to_le32(~BIT_22); ha->flags.disable_msix_handshake = 1; ql_dbg(ql_dbg_init, vha, 0x00fe, "MSIX Handshake Disable Mode turned on.\n"); } else { - icb->firmware_options_2 |= - __constant_cpu_to_le32(BIT_22); + icb->firmware_options_2 |= cpu_to_le32(BIT_22); } - icb->firmware_options_2 |= __constant_cpu_to_le32(BIT_23); + icb->firmware_options_2 |= cpu_to_le32(BIT_23); WRT_REG_DWORD(®->isp25mq.req_q_in, 0); WRT_REG_DWORD(®->isp25mq.req_q_out, 0); @@ -2243,7 +2246,7 @@ qla2x00_init_rings(scsi_qla_host_t *vha) } if (IS_FWI2_CAPABLE(ha)) { - mid_init_cb->options = __constant_cpu_to_le16(BIT_1); + mid_init_cb->options = cpu_to_le16(BIT_1); mid_init_cb->init_cb.execution_throttle = cpu_to_le16(ha->fw_xcb_count); /* D-Port Status */ @@ -2672,8 +2675,8 @@ qla2x00_nvram_config(scsi_qla_host_t *vha) nv->frame_payload_size = 1024; } - nv->max_iocb_allocation = __constant_cpu_to_le16(256); - nv->execution_throttle = __constant_cpu_to_le16(16); + nv->max_iocb_allocation = cpu_to_le16(256); + nv->execution_throttle = cpu_to_le16(16); nv->retry_count = 8; nv->retry_delay = 1; @@ -2691,7 +2694,7 @@ qla2x00_nvram_config(scsi_qla_host_t *vha) nv->host_p[1] = BIT_2; nv->reset_delay = 5; nv->port_down_retry_count = 8; - nv->max_luns_per_target = __constant_cpu_to_le16(8); + nv->max_luns_per_target = cpu_to_le16(8); nv->link_down_timeout = 60; rval = 1; @@ -2819,7 +2822,7 @@ qla2x00_nvram_config(scsi_qla_host_t *vha) memcpy(vha->node_name, icb->node_name, WWN_SIZE); memcpy(vha->port_name, icb->port_name, WWN_SIZE); - icb->execution_throttle = __constant_cpu_to_le16(0xFFFF); + icb->execution_throttle = cpu_to_le16(0xFFFF); ha->retry_count = nv->retry_count; @@ -2871,10 +2874,10 @@ qla2x00_nvram_config(scsi_qla_host_t *vha) if (ql2xloginretrycount) ha->login_retry_count = ql2xloginretrycount; - icb->lun_enables = __constant_cpu_to_le16(0); + icb->lun_enables = cpu_to_le16(0); icb->command_resource_count = 0; icb->immediate_notify_resource_count = 0; - icb->timeout = __constant_cpu_to_le16(0); + icb->timeout = cpu_to_le16(0); if (IS_QLA2100(ha) || IS_QLA2200(ha)) { /* Enable RIO */ @@ -2922,21 +2925,14 @@ qla2x00_rport_del(void *data) { fc_port_t *fcport = data; struct fc_rport *rport; - scsi_qla_host_t *vha = fcport->vha; unsigned long flags; spin_lock_irqsave(fcport->vha->host->host_lock, flags); rport = fcport->drport ? fcport->drport: fcport->rport; fcport->drport = NULL; spin_unlock_irqrestore(fcport->vha->host->host_lock, flags); - if (rport) { + if (rport) fc_remote_port_delete(rport); - /* - * Release the target mode FC NEXUS in qla_target.c code - * if target mod is enabled. - */ - qlt_fc_port_deleted(vha, fcport); - } } /** @@ -3303,6 +3299,7 @@ qla2x00_reg_remote_port(scsi_qla_host_t *vha, fc_port_t *fcport) * Create target mode FC NEXUS in qla_target.c if target mode is * enabled.. */ + qlt_fc_port_added(vha, fcport); spin_lock_irqsave(fcport->vha->host->host_lock, flags); @@ -3341,8 +3338,7 @@ qla2x00_update_fcport(scsi_qla_host_t *vha, fc_port_t *fcport) if (IS_QLAFX00(vha->hw)) { qla2x00_set_fcport_state(fcport, FCS_ONLINE); - qla2x00_reg_remote_port(vha, fcport); - return; + goto reg_port; } fcport->login_retry = 0; fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT); @@ -3350,7 +3346,16 @@ qla2x00_update_fcport(scsi_qla_host_t *vha, fc_port_t *fcport) qla2x00_set_fcport_state(fcport, FCS_ONLINE); qla2x00_iidma_fcport(vha, fcport); qla24xx_update_fcport_fcp_prio(vha, fcport); - qla2x00_reg_remote_port(vha, fcport); + +reg_port: + if (qla_ini_mode_enabled(vha)) + qla2x00_reg_remote_port(vha, fcport); + else { + /* + * Create target mode FC NEXUS in qla_target.c + */ + qlt_fc_port_added(vha, fcport); + } } /* @@ -3375,6 +3380,7 @@ qla2x00_configure_fabric(scsi_qla_host_t *vha) LIST_HEAD(new_fcports); struct qla_hw_data *ha = vha->hw; struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); + int discovery_gen; /* If FL port exists, then SNS is present */ if (IS_FWI2_CAPABLE(ha)) @@ -3445,6 +3451,14 @@ qla2x00_configure_fabric(scsi_qla_host_t *vha) fcport->scan_state = QLA_FCPORT_SCAN; } + /* Mark the time right before querying FW for connected ports. + * This process is long, asynchronous and by the time it's done, + * collected information might not be accurate anymore. E.g. + * disconnected port might have re-connected and a brand new + * session has been created. In this case session's generation + * will be newer than discovery_gen. */ + qlt_do_generation_tick(vha, &discovery_gen); + rval = qla2x00_find_all_fabric_devs(vha, &new_fcports); if (rval != QLA_SUCCESS) break; @@ -3460,20 +3474,44 @@ qla2x00_configure_fabric(scsi_qla_host_t *vha) if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) continue; - if (fcport->scan_state == QLA_FCPORT_SCAN && - atomic_read(&fcport->state) == FCS_ONLINE) { - qla2x00_mark_device_lost(vha, fcport, - ql2xplogiabsentdevice, 0); - if (fcport->loop_id != FC_NO_LOOP_ID && - (fcport->flags & FCF_FCP2_DEVICE) == 0 && - fcport->port_type != FCT_INITIATOR && - fcport->port_type != FCT_BROADCAST) { - ha->isp_ops->fabric_logout(vha, - fcport->loop_id, - fcport->d_id.b.domain, - fcport->d_id.b.area, - fcport->d_id.b.al_pa); - qla2x00_clear_loop_id(fcport); + if (fcport->scan_state == QLA_FCPORT_SCAN) { + if (qla_ini_mode_enabled(base_vha) && + atomic_read(&fcport->state) == FCS_ONLINE) { + qla2x00_mark_device_lost(vha, fcport, + ql2xplogiabsentdevice, 0); + if (fcport->loop_id != FC_NO_LOOP_ID && + (fcport->flags & FCF_FCP2_DEVICE) == 0 && + fcport->port_type != FCT_INITIATOR && + fcport->port_type != FCT_BROADCAST) { + ha->isp_ops->fabric_logout(vha, + fcport->loop_id, + fcport->d_id.b.domain, + fcport->d_id.b.area, + fcport->d_id.b.al_pa); + qla2x00_clear_loop_id(fcport); + } + } else if (!qla_ini_mode_enabled(base_vha)) { + /* + * In target mode, explicitly kill + * sessions and log out of devices + * that are gone, so that we don't + * end up with an initiator using the + * wrong ACL (if the fabric recycles + * an FC address and we have a stale + * session around) and so that we don't + * report initiators that are no longer + * on the fabric. + */ + ql_dbg(ql_dbg_tgt_mgt, vha, 0xf077, + "port gone, logging out/killing session: " + "%8phC state 0x%x flags 0x%x fc4_type 0x%x " + "scan_state %d\n", + fcport->port_name, + atomic_read(&fcport->state), + fcport->flags, fcport->fc4_type, + fcport->scan_state); + qlt_fc_port_deleted(vha, fcport, + discovery_gen); } } } @@ -3494,6 +3532,28 @@ qla2x00_configure_fabric(scsi_qla_host_t *vha) (fcport->flags & FCF_LOGIN_NEEDED) == 0) continue; + /* + * If we're not an initiator, skip looking for devices + * and logging in. There's no reason for us to do it, + * and it seems to actively cause problems in target + * mode if we race with the initiator logging into us + * (we might get the "port ID used" status back from + * our login command and log out the initiator, which + * seems to cause havoc). + */ + if (!qla_ini_mode_enabled(base_vha)) { + if (fcport->scan_state == QLA_FCPORT_FOUND) { + ql_dbg(ql_dbg_tgt_mgt, vha, 0xf078, + "port %8phC state 0x%x flags 0x%x fc4_type 0x%x " + "scan_state %d (initiator mode disabled; skipping " + "login)\n", fcport->port_name, + atomic_read(&fcport->state), + fcport->flags, fcport->fc4_type, + fcport->scan_state); + } + continue; + } + if (fcport->loop_id == FC_NO_LOOP_ID) { fcport->loop_id = next_loopid; rval = qla2x00_find_new_loop_id( @@ -3520,16 +3580,38 @@ qla2x00_configure_fabric(scsi_qla_host_t *vha) test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) break; - /* Find a new loop ID to use. */ - fcport->loop_id = next_loopid; - rval = qla2x00_find_new_loop_id(base_vha, fcport); - if (rval != QLA_SUCCESS) { - /* Ran out of IDs to use */ - break; - } + /* + * If we're not an initiator, skip looking for devices + * and logging in. There's no reason for us to do it, + * and it seems to actively cause problems in target + * mode if we race with the initiator logging into us + * (we might get the "port ID used" status back from + * our login command and log out the initiator, which + * seems to cause havoc). + */ + if (qla_ini_mode_enabled(base_vha)) { + /* Find a new loop ID to use. */ + fcport->loop_id = next_loopid; + rval = qla2x00_find_new_loop_id(base_vha, + fcport); + if (rval != QLA_SUCCESS) { + /* Ran out of IDs to use */ + break; + } - /* Login and update database */ - qla2x00_fabric_dev_login(vha, fcport, &next_loopid); + /* Login and update database */ + qla2x00_fabric_dev_login(vha, fcport, + &next_loopid); + } else { + ql_dbg(ql_dbg_tgt_mgt, vha, 0xf079, + "new port %8phC state 0x%x flags 0x%x fc4_type " + "0x%x scan_state %d (initiator mode disabled; " + "skipping login)\n", + fcport->port_name, + atomic_read(&fcport->state), + fcport->flags, fcport->fc4_type, + fcport->scan_state); + } list_move_tail(&fcport->list, &vha->vp_fcports); } @@ -3725,11 +3807,12 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *vha, fcport->fp_speed = new_fcport->fp_speed; /* - * If address the same and state FCS_ONLINE, nothing - * changed. + * If address the same and state FCS_ONLINE + * (or in target mode), nothing changed. */ if (fcport->d_id.b24 == new_fcport->d_id.b24 && - atomic_read(&fcport->state) == FCS_ONLINE) { + (atomic_read(&fcport->state) == FCS_ONLINE || + !qla_ini_mode_enabled(base_vha))) { break; } @@ -3749,6 +3832,22 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *vha, * Log it out if still logged in and mark it for * relogin later. */ + if (!qla_ini_mode_enabled(base_vha)) { + ql_dbg(ql_dbg_tgt_mgt, vha, 0xf080, + "port changed FC ID, %8phC" + " old %x:%x:%x (loop_id 0x%04x)-> new %x:%x:%x\n", + fcport->port_name, + fcport->d_id.b.domain, + fcport->d_id.b.area, + fcport->d_id.b.al_pa, + fcport->loop_id, + new_fcport->d_id.b.domain, + new_fcport->d_id.b.area, + new_fcport->d_id.b.al_pa); + fcport->d_id.b24 = new_fcport->d_id.b24; + break; + } + fcport->d_id.b24 = new_fcport->d_id.b24; fcport->flags |= FCF_LOGIN_NEEDED; if (fcport->loop_id != FC_NO_LOOP_ID && @@ -3768,6 +3867,7 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *vha, if (found) continue; /* If device was not in our fcports list, then add it. */ + new_fcport->scan_state = QLA_FCPORT_FOUND; list_add_tail(&new_fcport->list, new_fcports); /* Allocate a new replacement fcport. */ @@ -3856,12 +3956,10 @@ qla2x00_fabric_dev_login(scsi_qla_host_t *vha, fc_port_t *fcport, uint16_t *next_loopid) { int rval; - int retry; uint8_t opts; struct qla_hw_data *ha = vha->hw; rval = QLA_SUCCESS; - retry = 0; if (IS_ALOGIO_CAPABLE(ha)) { if (fcport->flags & FCF_ASYNC_SENT) @@ -4188,6 +4286,14 @@ qla2x00_update_fcports(scsi_qla_host_t *base_vha) atomic_read(&fcport->state) != FCS_UNCONFIGURED) { spin_unlock_irqrestore(&ha->vport_slock, flags); qla2x00_rport_del(fcport); + + /* + * Release the target mode FC NEXUS in + * qla_target.c, if target mod is enabled. + */ + qlt_fc_port_deleted(vha, fcport, + base_vha->total_fcport_update_gen); + spin_lock_irqsave(&ha->vport_slock, flags); } } @@ -5007,7 +5113,7 @@ qla24xx_nvram_config(scsi_qla_host_t *vha) /* Bad NVRAM data, set defaults parameters. */ if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || nv->id[2] != 'P' || nv->id[3] != ' ' || - nv->nvram_version < __constant_cpu_to_le16(ICB_VERSION)) { + nv->nvram_version < cpu_to_le16(ICB_VERSION)) { /* Reset NVRAM data. */ ql_log(ql_log_warn, vha, 0x006b, "Inconsistent NVRAM detected: checksum=0x%x id=%c " @@ -5020,12 +5126,12 @@ qla24xx_nvram_config(scsi_qla_host_t *vha) * Set default initialization control block. */ memset(nv, 0, ha->nvram_size); - nv->nvram_version = __constant_cpu_to_le16(ICB_VERSION); - nv->version = __constant_cpu_to_le16(ICB_VERSION); + nv->nvram_version = cpu_to_le16(ICB_VERSION); + nv->version = cpu_to_le16(ICB_VERSION); nv->frame_payload_size = 2048; - nv->execution_throttle = __constant_cpu_to_le16(0xFFFF); - nv->exchange_count = __constant_cpu_to_le16(0); - nv->hard_address = __constant_cpu_to_le16(124); + nv->execution_throttle = cpu_to_le16(0xFFFF); + nv->exchange_count = cpu_to_le16(0); + nv->hard_address = cpu_to_le16(124); nv->port_name[0] = 0x21; nv->port_name[1] = 0x00 + ha->port_no + 1; nv->port_name[2] = 0x00; @@ -5043,29 +5149,29 @@ qla24xx_nvram_config(scsi_qla_host_t *vha) nv->node_name[6] = 0x55; nv->node_name[7] = 0x86; qla24xx_nvram_wwn_from_ofw(vha, nv); - nv->login_retry_count = __constant_cpu_to_le16(8); - nv->interrupt_delay_timer = __constant_cpu_to_le16(0); - nv->login_timeout = __constant_cpu_to_le16(0); + nv->login_retry_count = cpu_to_le16(8); + nv->interrupt_delay_timer = cpu_to_le16(0); + nv->login_timeout = cpu_to_le16(0); nv->firmware_options_1 = - __constant_cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1); - nv->firmware_options_2 = __constant_cpu_to_le32(2 << 4); - nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12); - nv->firmware_options_3 = __constant_cpu_to_le32(2 << 13); - nv->host_p = __constant_cpu_to_le32(BIT_11|BIT_10); - nv->efi_parameters = __constant_cpu_to_le32(0); + cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1); + nv->firmware_options_2 = cpu_to_le32(2 << 4); + nv->firmware_options_2 |= cpu_to_le32(BIT_12); + nv->firmware_options_3 = cpu_to_le32(2 << 13); + nv->host_p = cpu_to_le32(BIT_11|BIT_10); + nv->efi_parameters = cpu_to_le32(0); nv->reset_delay = 5; - nv->max_luns_per_target = __constant_cpu_to_le16(128); - nv->port_down_retry_count = __constant_cpu_to_le16(30); - nv->link_down_timeout = __constant_cpu_to_le16(30); + nv->max_luns_per_target = cpu_to_le16(128); + nv->port_down_retry_count = cpu_to_le16(30); + nv->link_down_timeout = cpu_to_le16(30); rval = 1; } if (!qla_ini_mode_enabled(vha)) { /* Don't enable full login after initial LIP */ - nv->firmware_options_1 &= __constant_cpu_to_le32(~BIT_13); + nv->firmware_options_1 &= cpu_to_le32(~BIT_13); /* Don't enable LIP full login for initiator */ - nv->host_p &= __constant_cpu_to_le32(~BIT_10); + nv->host_p &= cpu_to_le32(~BIT_10); } qlt_24xx_config_nvram_stage1(vha, nv); @@ -5099,14 +5205,14 @@ qla24xx_nvram_config(scsi_qla_host_t *vha) qlt_24xx_config_nvram_stage2(vha, icb); - if (nv->host_p & __constant_cpu_to_le32(BIT_15)) { + if (nv->host_p & cpu_to_le32(BIT_15)) { /* Use alternate WWN? */ memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE); memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE); } /* Prepare nodename */ - if ((icb->firmware_options_1 & __constant_cpu_to_le32(BIT_14)) == 0) { + if ((icb->firmware_options_1 & cpu_to_le32(BIT_14)) == 0) { /* * Firmware will apply the following mask if the nodename was * not provided. @@ -5138,7 +5244,7 @@ qla24xx_nvram_config(scsi_qla_host_t *vha) memcpy(vha->node_name, icb->node_name, WWN_SIZE); memcpy(vha->port_name, icb->port_name, WWN_SIZE); - icb->execution_throttle = __constant_cpu_to_le16(0xFFFF); + icb->execution_throttle = cpu_to_le16(0xFFFF); ha->retry_count = le16_to_cpu(nv->login_retry_count); @@ -5146,7 +5252,7 @@ qla24xx_nvram_config(scsi_qla_host_t *vha) if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout) nv->login_timeout = cpu_to_le16(ql2xlogintimeout); if (le16_to_cpu(nv->login_timeout) < 4) - nv->login_timeout = __constant_cpu_to_le16(4); + nv->login_timeout = cpu_to_le16(4); ha->login_timeout = le16_to_cpu(nv->login_timeout); icb->login_timeout = nv->login_timeout; @@ -5197,7 +5303,7 @@ qla24xx_nvram_config(scsi_qla_host_t *vha) ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ? le16_to_cpu(icb->interrupt_delay_timer): 2; } - icb->firmware_options_2 &= __constant_cpu_to_le32( + icb->firmware_options_2 &= cpu_to_le32( ~(BIT_3 | BIT_2 | BIT_1 | BIT_0)); vha->flags.process_response_queue = 0; if (ha->zio_mode != QLA_ZIO_DISABLED) { @@ -5953,7 +6059,7 @@ qla81xx_nvram_config(scsi_qla_host_t *vha) /* Bad NVRAM data, set defaults parameters. */ if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || nv->id[2] != 'P' || nv->id[3] != ' ' || - nv->nvram_version < __constant_cpu_to_le16(ICB_VERSION)) { + nv->nvram_version < cpu_to_le16(ICB_VERSION)) { /* Reset NVRAM data. */ ql_log(ql_log_info, vha, 0x0073, "Inconsistent NVRAM detected: checksum=0x%x id=%c " @@ -5967,11 +6073,11 @@ qla81xx_nvram_config(scsi_qla_host_t *vha) * Set default initialization control block. */ memset(nv, 0, ha->nvram_size); - nv->nvram_version = __constant_cpu_to_le16(ICB_VERSION); - nv->version = __constant_cpu_to_le16(ICB_VERSION); + nv->nvram_version = cpu_to_le16(ICB_VERSION); + nv->version = cpu_to_le16(ICB_VERSION); nv->frame_payload_size = 2048; - nv->execution_throttle = __constant_cpu_to_le16(0xFFFF); - nv->exchange_count = __constant_cpu_to_le16(0); + nv->execution_throttle = cpu_to_le16(0xFFFF); + nv->exchange_count = cpu_to_le16(0); nv->port_name[0] = 0x21; nv->port_name[1] = 0x00 + ha->port_no + 1; nv->port_name[2] = 0x00; @@ -5988,20 +6094,20 @@ qla81xx_nvram_config(scsi_qla_host_t *vha) nv->node_name[5] = 0x1c; nv->node_name[6] = 0x55; nv->node_name[7] = 0x86; - nv->login_retry_count = __constant_cpu_to_le16(8); - nv->interrupt_delay_timer = __constant_cpu_to_le16(0); - nv->login_timeout = __constant_cpu_to_le16(0); + nv->login_retry_count = cpu_to_le16(8); + nv->interrupt_delay_timer = cpu_to_le16(0); + nv->login_timeout = cpu_to_le16(0); nv->firmware_options_1 = - __constant_cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1); - nv->firmware_options_2 = __constant_cpu_to_le32(2 << 4); - nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12); - nv->firmware_options_3 = __constant_cpu_to_le32(2 << 13); - nv->host_p = __constant_cpu_to_le32(BIT_11|BIT_10); - nv->efi_parameters = __constant_cpu_to_le32(0); + cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1); + nv->firmware_options_2 = cpu_to_le32(2 << 4); + nv->firmware_options_2 |= cpu_to_le32(BIT_12); + nv->firmware_options_3 = cpu_to_le32(2 << 13); + nv->host_p = cpu_to_le32(BIT_11|BIT_10); + nv->efi_parameters = cpu_to_le32(0); nv->reset_delay = 5; - nv->max_luns_per_target = __constant_cpu_to_le16(128); - nv->port_down_retry_count = __constant_cpu_to_le16(30); - nv->link_down_timeout = __constant_cpu_to_le16(180); + nv->max_luns_per_target = cpu_to_le16(128); + nv->port_down_retry_count = cpu_to_le16(30); + nv->link_down_timeout = cpu_to_le16(180); nv->enode_mac[0] = 0x00; nv->enode_mac[1] = 0xC0; nv->enode_mac[2] = 0xDD; @@ -6060,13 +6166,13 @@ qla81xx_nvram_config(scsi_qla_host_t *vha) qlt_81xx_config_nvram_stage2(vha, icb); /* Use alternate WWN? */ - if (nv->host_p & __constant_cpu_to_le32(BIT_15)) { + if (nv->host_p & cpu_to_le32(BIT_15)) { memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE); memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE); } /* Prepare nodename */ - if ((icb->firmware_options_1 & __constant_cpu_to_le32(BIT_14)) == 0) { + if ((icb->firmware_options_1 & cpu_to_le32(BIT_14)) == 0) { /* * Firmware will apply the following mask if the nodename was * not provided. @@ -6095,7 +6201,7 @@ qla81xx_nvram_config(scsi_qla_host_t *vha) memcpy(vha->node_name, icb->node_name, WWN_SIZE); memcpy(vha->port_name, icb->port_name, WWN_SIZE); - icb->execution_throttle = __constant_cpu_to_le16(0xFFFF); + icb->execution_throttle = cpu_to_le16(0xFFFF); ha->retry_count = le16_to_cpu(nv->login_retry_count); @@ -6103,7 +6209,7 @@ qla81xx_nvram_config(scsi_qla_host_t *vha) if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout) nv->login_timeout = cpu_to_le16(ql2xlogintimeout); if (le16_to_cpu(nv->login_timeout) < 4) - nv->login_timeout = __constant_cpu_to_le16(4); + nv->login_timeout = cpu_to_le16(4); ha->login_timeout = le16_to_cpu(nv->login_timeout); icb->login_timeout = nv->login_timeout; @@ -6149,7 +6255,7 @@ qla81xx_nvram_config(scsi_qla_host_t *vha) /* if not running MSI-X we need handshaking on interrupts */ if (!vha->hw->flags.msix_enabled && (IS_QLA83XX(ha) || IS_QLA27XX(ha))) - icb->firmware_options_2 |= __constant_cpu_to_le32(BIT_22); + icb->firmware_options_2 |= cpu_to_le32(BIT_22); /* Enable ZIO. */ if (!vha->flags.init_done) { @@ -6158,7 +6264,7 @@ qla81xx_nvram_config(scsi_qla_host_t *vha) ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ? le16_to_cpu(icb->interrupt_delay_timer): 2; } - icb->firmware_options_2 &= __constant_cpu_to_le32( + icb->firmware_options_2 &= cpu_to_le32( ~(BIT_3 | BIT_2 | BIT_1 | BIT_0)); vha->flags.process_response_queue = 0; if (ha->zio_mode != QLA_ZIO_DISABLED) { diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c index 36fbd4c7af8f..c49df34e9b35 100644 --- a/drivers/scsi/qla2xxx/qla_iocb.c +++ b/drivers/scsi/qla2xxx/qla_iocb.c @@ -108,8 +108,7 @@ qla2x00_prep_cont_type0_iocb(struct scsi_qla_host *vha) cont_pkt = (cont_entry_t *)req->ring_ptr; /* Load packet defaults. */ - *((uint32_t *)(&cont_pkt->entry_type)) = - __constant_cpu_to_le32(CONTINUE_TYPE); + *((uint32_t *)(&cont_pkt->entry_type)) = cpu_to_le32(CONTINUE_TYPE); return (cont_pkt); } @@ -138,8 +137,8 @@ qla2x00_prep_cont_type1_iocb(scsi_qla_host_t *vha, struct req_que *req) /* Load packet defaults. */ *((uint32_t *)(&cont_pkt->entry_type)) = IS_QLAFX00(vha->hw) ? - __constant_cpu_to_le32(CONTINUE_A64_TYPE_FX00) : - __constant_cpu_to_le32(CONTINUE_A64_TYPE); + cpu_to_le32(CONTINUE_A64_TYPE_FX00) : + cpu_to_le32(CONTINUE_A64_TYPE); return (cont_pkt); } @@ -204,11 +203,11 @@ void qla2x00_build_scsi_iocbs_32(srb_t *sp, cmd_entry_t *cmd_pkt, /* Update entry type to indicate Command Type 2 IOCB */ *((uint32_t *)(&cmd_pkt->entry_type)) = - __constant_cpu_to_le32(COMMAND_TYPE); + cpu_to_le32(COMMAND_TYPE); /* No data transfer */ if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { - cmd_pkt->byte_count = __constant_cpu_to_le32(0); + cmd_pkt->byte_count = cpu_to_le32(0); return; } @@ -261,12 +260,11 @@ void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt, cmd = GET_CMD_SP(sp); /* Update entry type to indicate Command Type 3 IOCB */ - *((uint32_t *)(&cmd_pkt->entry_type)) = - __constant_cpu_to_le32(COMMAND_A64_TYPE); + *((uint32_t *)(&cmd_pkt->entry_type)) = cpu_to_le32(COMMAND_A64_TYPE); /* No data transfer */ if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { - cmd_pkt->byte_count = __constant_cpu_to_le32(0); + cmd_pkt->byte_count = cpu_to_le32(0); return; } @@ -310,7 +308,7 @@ void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt, int qla2x00_start_scsi(srb_t *sp) { - int ret, nseg; + int nseg; unsigned long flags; scsi_qla_host_t *vha; struct scsi_cmnd *cmd; @@ -327,7 +325,6 @@ qla2x00_start_scsi(srb_t *sp) struct rsp_que *rsp; /* Setup device pointers. */ - ret = 0; vha = sp->fcport->vha; ha = vha->hw; reg = &ha->iobase->isp; @@ -403,7 +400,7 @@ qla2x00_start_scsi(srb_t *sp) /* Set target ID and LUN number*/ SET_TARGET_ID(ha, cmd_pkt->target, sp->fcport->loop_id); cmd_pkt->lun = cpu_to_le16(cmd->device->lun); - cmd_pkt->control_flags = __constant_cpu_to_le16(CF_SIMPLE_TAG); + cmd_pkt->control_flags = cpu_to_le16(CF_SIMPLE_TAG); /* Load SCSI command packet. */ memcpy(cmd_pkt->scsi_cdb, cmd->cmnd, cmd->cmd_len); @@ -454,7 +451,7 @@ void qla2x00_start_iocbs(struct scsi_qla_host *vha, struct req_que *req) { struct qla_hw_data *ha = vha->hw; - device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id); + device_reg_t *reg = ISP_QUE_REG(ha, req->id); if (IS_P3P_TYPE(ha)) { qla82xx_start_iocbs(vha); @@ -597,12 +594,11 @@ qla24xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt, cmd = GET_CMD_SP(sp); /* Update entry type to indicate Command Type 3 IOCB */ - *((uint32_t *)(&cmd_pkt->entry_type)) = - __constant_cpu_to_le32(COMMAND_TYPE_6); + *((uint32_t *)(&cmd_pkt->entry_type)) = cpu_to_le32(COMMAND_TYPE_6); /* No data transfer */ if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { - cmd_pkt->byte_count = __constant_cpu_to_le32(0); + cmd_pkt->byte_count = cpu_to_le32(0); return 0; } @@ -611,13 +607,11 @@ qla24xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt, /* Set transfer direction */ if (cmd->sc_data_direction == DMA_TO_DEVICE) { - cmd_pkt->control_flags = - __constant_cpu_to_le16(CF_WRITE_DATA); + cmd_pkt->control_flags = cpu_to_le16(CF_WRITE_DATA); vha->qla_stats.output_bytes += scsi_bufflen(cmd); vha->qla_stats.output_requests++; } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { - cmd_pkt->control_flags = - __constant_cpu_to_le16(CF_READ_DATA); + cmd_pkt->control_flags = cpu_to_le16(CF_READ_DATA); vha->qla_stats.input_bytes += scsi_bufflen(cmd); vha->qla_stats.input_requests++; } @@ -680,7 +674,7 @@ qla24xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt, * * Returns the number of dsd list needed to store @dsds. */ -inline uint16_t +static inline uint16_t qla24xx_calc_dsd_lists(uint16_t dsds) { uint16_t dsd_lists = 0; @@ -700,7 +694,7 @@ qla24xx_calc_dsd_lists(uint16_t dsds) * @cmd_pkt: Command type 3 IOCB * @tot_dsds: Total number of segments to transfer */ -inline void +static inline void qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt, uint16_t tot_dsds) { @@ -710,32 +704,27 @@ qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt, struct scsi_cmnd *cmd; struct scatterlist *sg; int i; - struct req_que *req; cmd = GET_CMD_SP(sp); /* Update entry type to indicate Command Type 3 IOCB */ - *((uint32_t *)(&cmd_pkt->entry_type)) = - __constant_cpu_to_le32(COMMAND_TYPE_7); + *((uint32_t *)(&cmd_pkt->entry_type)) = cpu_to_le32(COMMAND_TYPE_7); /* No data transfer */ if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { - cmd_pkt->byte_count = __constant_cpu_to_le32(0); + cmd_pkt->byte_count = cpu_to_le32(0); return; } vha = sp->fcport->vha; - req = vha->req; /* Set transfer direction */ if (cmd->sc_data_direction == DMA_TO_DEVICE) { - cmd_pkt->task_mgmt_flags = - __constant_cpu_to_le16(TMF_WRITE_DATA); + cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_WRITE_DATA); vha->qla_stats.output_bytes += scsi_bufflen(cmd); vha->qla_stats.output_requests++; } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { - cmd_pkt->task_mgmt_flags = - __constant_cpu_to_le16(TMF_READ_DATA); + cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_READ_DATA); vha->qla_stats.input_bytes += scsi_bufflen(cmd); vha->qla_stats.input_requests++; } @@ -809,7 +798,7 @@ qla24xx_set_t10dif_tags(srb_t *sp, struct fw_dif_context *pkt, * match LBA in CDB + N */ case SCSI_PROT_DIF_TYPE2: - pkt->app_tag = __constant_cpu_to_le16(0); + pkt->app_tag = cpu_to_le16(0); pkt->app_tag_mask[0] = 0x0; pkt->app_tag_mask[1] = 0x0; @@ -840,7 +829,7 @@ qla24xx_set_t10dif_tags(srb_t *sp, struct fw_dif_context *pkt, case SCSI_PROT_DIF_TYPE1: pkt->ref_tag = cpu_to_le32((uint32_t) (0xffffffff & scsi_get_lba(cmd))); - pkt->app_tag = __constant_cpu_to_le16(0); + pkt->app_tag = cpu_to_le16(0); pkt->app_tag_mask[0] = 0x0; pkt->app_tag_mask[1] = 0x0; @@ -933,11 +922,9 @@ qla24xx_walk_and_build_sglist_no_difb(struct qla_hw_data *ha, srb_t *sp, dma_addr_t sle_dma; uint32_t sle_dma_len, tot_prot_dma_len = 0; struct scsi_cmnd *cmd; - struct scsi_qla_host *vha; memset(&sgx, 0, sizeof(struct qla2_sgx)); if (sp) { - vha = sp->fcport->vha; cmd = GET_CMD_SP(sp); prot_int = cmd->device->sector_size; @@ -947,7 +934,6 @@ qla24xx_walk_and_build_sglist_no_difb(struct qla_hw_data *ha, srb_t *sp, sg_prot = scsi_prot_sglist(cmd); } else if (tc) { - vha = tc->vha; prot_int = tc->blk_sz; sgx.tot_bytes = tc->bufflen; sgx.cur_sg = tc->sg; @@ -1047,15 +1033,12 @@ qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp, uint32_t *dsd, int i; uint16_t used_dsds = tot_dsds; struct scsi_cmnd *cmd; - struct scsi_qla_host *vha; if (sp) { cmd = GET_CMD_SP(sp); sgl = scsi_sglist(cmd); - vha = sp->fcport->vha; } else if (tc) { sgl = tc->sg; - vha = tc->vha; } else { BUG(); return 1; @@ -1231,7 +1214,6 @@ qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt, uint32_t *cur_dsd, *fcp_dl; scsi_qla_host_t *vha; struct scsi_cmnd *cmd; - int sgc; uint32_t total_bytes = 0; uint32_t data_bytes; uint32_t dif_bytes; @@ -1247,10 +1229,8 @@ qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt, cmd = GET_CMD_SP(sp); - sgc = 0; /* Update entry type to indicate Command Type CRC_2 IOCB */ - *((uint32_t *)(&cmd_pkt->entry_type)) = - __constant_cpu_to_le32(COMMAND_TYPE_CRC_2); + *((uint32_t *)(&cmd_pkt->entry_type)) = cpu_to_le32(COMMAND_TYPE_CRC_2); vha = sp->fcport->vha; ha = vha->hw; @@ -1258,7 +1238,7 @@ qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt, /* No data transfer */ data_bytes = scsi_bufflen(cmd); if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { - cmd_pkt->byte_count = __constant_cpu_to_le32(0); + cmd_pkt->byte_count = cpu_to_le32(0); return QLA_SUCCESS; } @@ -1267,10 +1247,10 @@ qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt, /* Set transfer direction */ if (cmd->sc_data_direction == DMA_TO_DEVICE) { cmd_pkt->control_flags = - __constant_cpu_to_le16(CF_WRITE_DATA); + cpu_to_le16(CF_WRITE_DATA); } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { cmd_pkt->control_flags = - __constant_cpu_to_le16(CF_READ_DATA); + cpu_to_le16(CF_READ_DATA); } if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || @@ -1392,7 +1372,7 @@ qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt, crc_ctx_pkt->blk_size = cpu_to_le16(blk_size); crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts); crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes); - crc_ctx_pkt->guard_seed = __constant_cpu_to_le16(0); + crc_ctx_pkt->guard_seed = cpu_to_le16(0); /* Fibre channel byte count */ cmd_pkt->byte_count = cpu_to_le32(total_bytes); fcp_dl = (uint32_t *)(crc_ctx_pkt->fcp_cmnd.cdb + 16 + @@ -1400,13 +1380,12 @@ qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt, *fcp_dl = htonl(total_bytes); if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { - cmd_pkt->byte_count = __constant_cpu_to_le32(0); + cmd_pkt->byte_count = cpu_to_le32(0); return QLA_SUCCESS; } /* Walks data segments */ - cmd_pkt->control_flags |= - __constant_cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE); + cmd_pkt->control_flags |= cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE); if (!bundling && tot_prot_dsds) { if (qla24xx_walk_and_build_sglist_no_difb(ha, sp, @@ -1418,8 +1397,7 @@ qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt, if (bundling && tot_prot_dsds) { /* Walks dif segments */ - cmd_pkt->control_flags |= - __constant_cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE); + cmd_pkt->control_flags |= cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE); cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.dif_address; if (qla24xx_walk_and_build_prot_sglist(ha, sp, cur_dsd, tot_prot_dsds, NULL)) @@ -1442,7 +1420,7 @@ crc_queuing_error: int qla24xx_start_scsi(srb_t *sp) { - int ret, nseg; + int nseg; unsigned long flags; uint32_t *clr_ptr; uint32_t index; @@ -1458,8 +1436,6 @@ qla24xx_start_scsi(srb_t *sp) struct qla_hw_data *ha = vha->hw; /* Setup device pointers. */ - ret = 0; - qla25xx_set_que(sp, &rsp); req = vha->req; @@ -1753,7 +1729,7 @@ qla24xx_dif_start_scsi(srb_t *sp) cmd_pkt->entry_count = (uint8_t)req_cnt; /* Specify response queue number where completion should happen */ cmd_pkt->entry_status = (uint8_t) rsp->id; - cmd_pkt->timeout = __constant_cpu_to_le16(0); + cmd_pkt->timeout = cpu_to_le16(0); wmb(); /* Adjust ring index. */ @@ -1819,7 +1795,7 @@ qla2x00_alloc_iocbs(scsi_qla_host_t *vha, srb_t *sp) { struct qla_hw_data *ha = vha->hw; struct req_que *req = ha->req_q_map[0]; - device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id); + device_reg_t *reg = ISP_QUE_REG(ha, req->id); uint32_t index, handle; request_t *pkt; uint16_t cnt, req_cnt; @@ -1943,6 +1919,9 @@ qla24xx_logout_iocb(srb_t *sp, struct logio_entry_24xx *logio) logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; logio->control_flags = cpu_to_le16(LCF_COMMAND_LOGO|LCF_IMPL_LOGO); + if (!sp->fcport->tgt_session || + !sp->fcport->tgt_session->keep_nport_handle) + logio->control_flags |= cpu_to_le16(LCF_FREE_NPORT); logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); logio->port_id[0] = sp->fcport->d_id.b.al_pa; logio->port_id[1] = sp->fcport->d_id.b.area; @@ -2041,10 +2020,10 @@ qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) els_iocb->entry_status = 0; els_iocb->handle = sp->handle; els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); - els_iocb->tx_dsd_count = __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); + els_iocb->tx_dsd_count = cpu_to_le16(bsg_job->request_payload.sg_cnt); els_iocb->vp_index = sp->fcport->vha->vp_idx; els_iocb->sof_type = EST_SOFI3; - els_iocb->rx_dsd_count = __constant_cpu_to_le16(bsg_job->reply_payload.sg_cnt); + els_iocb->rx_dsd_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt); els_iocb->opcode = sp->type == SRB_ELS_CMD_RPT ? @@ -2088,7 +2067,6 @@ qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb) struct qla_hw_data *ha = vha->hw; struct fc_bsg_job *bsg_job = sp->u.bsg_job; int loop_iterartion = 0; - int cont_iocb_prsnt = 0; int entry_count = 1; memset(ct_iocb, 0, sizeof(ms_iocb_entry_t)); @@ -2096,13 +2074,13 @@ qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb) ct_iocb->entry_status = 0; ct_iocb->handle1 = sp->handle; SET_TARGET_ID(ha, ct_iocb->loop_id, sp->fcport->loop_id); - ct_iocb->status = __constant_cpu_to_le16(0); - ct_iocb->control_flags = __constant_cpu_to_le16(0); + ct_iocb->status = cpu_to_le16(0); + ct_iocb->control_flags = cpu_to_le16(0); ct_iocb->timeout = 0; ct_iocb->cmd_dsd_count = - __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); + cpu_to_le16(bsg_job->request_payload.sg_cnt); ct_iocb->total_dsd_count = - __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt + 1); + cpu_to_le16(bsg_job->request_payload.sg_cnt + 1); ct_iocb->req_bytecount = cpu_to_le32(bsg_job->request_payload.payload_len); ct_iocb->rsp_bytecount = @@ -2139,7 +2117,6 @@ qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb) vha->hw->req_q_map[0]); cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; avail_dsds = 5; - cont_iocb_prsnt = 1; entry_count++; } @@ -2167,7 +2144,6 @@ qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb) struct qla_hw_data *ha = vha->hw; struct fc_bsg_job *bsg_job = sp->u.bsg_job; int loop_iterartion = 0; - int cont_iocb_prsnt = 0; int entry_count = 1; ct_iocb->entry_type = CT_IOCB_TYPE; @@ -2177,13 +2153,13 @@ qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb) ct_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); ct_iocb->vp_index = sp->fcport->vha->vp_idx; - ct_iocb->comp_status = __constant_cpu_to_le16(0); + ct_iocb->comp_status = cpu_to_le16(0); ct_iocb->cmd_dsd_count = - __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); + cpu_to_le16(bsg_job->request_payload.sg_cnt); ct_iocb->timeout = 0; ct_iocb->rsp_dsd_count = - __constant_cpu_to_le16(bsg_job->reply_payload.sg_cnt); + cpu_to_le16(bsg_job->reply_payload.sg_cnt); ct_iocb->rsp_byte_count = cpu_to_le32(bsg_job->reply_payload.payload_len); ct_iocb->cmd_byte_count = @@ -2214,7 +2190,6 @@ qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb) ha->req_q_map[0]); cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; avail_dsds = 5; - cont_iocb_prsnt = 1; entry_count++; } @@ -2237,7 +2212,7 @@ qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb) int qla82xx_start_scsi(srb_t *sp) { - int ret, nseg; + int nseg; unsigned long flags; struct scsi_cmnd *cmd; uint32_t *clr_ptr; @@ -2257,7 +2232,6 @@ qla82xx_start_scsi(srb_t *sp) struct rsp_que *rsp = NULL; /* Setup device pointers. */ - ret = 0; reg = &ha->iobase->isp82; cmd = GET_CMD_SP(sp); req = vha->req; @@ -2536,16 +2510,12 @@ sufficient_dsds: /* write, read and verify logic */ dbval = dbval | (req->id << 8) | (req->ring_index << 16); if (ql2xdbwr) - qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval); + qla82xx_wr_32(ha, (uintptr_t __force)ha->nxdb_wr_ptr, dbval); else { - WRT_REG_DWORD( - (unsigned long __iomem *)ha->nxdb_wr_ptr, - dbval); + WRT_REG_DWORD(ha->nxdb_wr_ptr, dbval); wmb(); - while (RD_REG_DWORD((void __iomem *)ha->nxdb_rd_ptr) != dbval) { - WRT_REG_DWORD( - (unsigned long __iomem *)ha->nxdb_wr_ptr, - dbval); + while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) { + WRT_REG_DWORD(ha->nxdb_wr_ptr, dbval); wmb(); } } @@ -2679,7 +2649,7 @@ qla25xx_build_bidir_iocb(srb_t *sp, struct scsi_qla_host *vha, /*Update entry type to indicate bidir command */ *((uint32_t *)(&cmd_pkt->entry_type)) = - __constant_cpu_to_le32(COMMAND_BIDIRECTIONAL); + cpu_to_le32(COMMAND_BIDIRECTIONAL); /* Set the transfer direction, in this set both flags * Also set the BD_WRAP_BACK flag, firmware will take care @@ -2687,8 +2657,7 @@ qla25xx_build_bidir_iocb(srb_t *sp, struct scsi_qla_host *vha, */ cmd_pkt->wr_dseg_count = cpu_to_le16(bsg_job->request_payload.sg_cnt); cmd_pkt->rd_dseg_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt); - cmd_pkt->control_flags = - __constant_cpu_to_le16(BD_WRITE_DATA | BD_READ_DATA | + cmd_pkt->control_flags = cpu_to_le16(BD_WRITE_DATA | BD_READ_DATA | BD_WRAP_BACK); req_data_len = rsp_data_len = bsg_job->request_payload.payload_len; diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index 5559d5e75bbf..ccf6a7f99024 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -116,7 +116,7 @@ bool qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg) { /* Check for PCI disconnection */ - if (reg == 0xffffffff) { + if (reg == 0xffffffff && !pci_channel_offline(vha->hw->pdev)) { if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) && !test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) && !test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) { @@ -560,6 +560,17 @@ qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry) return ret; } +static inline fc_port_t * +qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id) +{ + fc_port_t *fcport; + + list_for_each_entry(fcport, &vha->vp_fcports, list) + if (fcport->loop_id == loop_id) + return fcport; + return NULL; +} + /** * qla2x00_async_event() - Process aynchronous events. * @ha: SCSI driver HA context @@ -575,7 +586,7 @@ qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb) struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24; struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82; - uint32_t rscn_entry, host_pid, tmp_pid; + uint32_t rscn_entry, host_pid; unsigned long flags; fc_port_t *fcport = NULL; @@ -897,11 +908,29 @@ skip_rio: (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff)) break; - /* Global event -- port logout or port unavailable. */ - if (mb[1] == 0xffff && mb[2] == 0x7) { + if (mb[2] == 0x7) { ql_dbg(ql_dbg_async, vha, 0x5010, - "Port unavailable %04x %04x %04x.\n", + "Port %s %04x %04x %04x.\n", + mb[1] == 0xffff ? "unavailable" : "logout", mb[1], mb[2], mb[3]); + + if (mb[1] == 0xffff) + goto global_port_update; + + /* Port logout */ + fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]); + if (!fcport) + break; + if (atomic_read(&fcport->state) != FCS_ONLINE) + break; + ql_dbg(ql_dbg_async, vha, 0x508a, + "Marking port lost loopid=%04x portid=%06x.\n", + fcport->loop_id, fcport->d_id.b24); + qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1); + break; + +global_port_update: + /* Port unavailable. */ ql_log(ql_log_warn, vha, 0x505e, "Link is offline.\n"); @@ -998,7 +1027,6 @@ skip_rio: list_for_each_entry(fcport, &vha->vp_fcports, list) { if (atomic_read(&fcport->state) != FCS_ONLINE) continue; - tmp_pid = fcport->d_id.b24; if (fcport->d_id.b24 == rscn_entry) { qla2x00_mark_device_lost(vha, fcport, 0, 0); break; @@ -1565,7 +1593,7 @@ qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk) "Async-%s error - hdl=%x entry-status(%x).\n", type, sp->handle, sts->entry_status); iocb->u.tmf.data = QLA_FUNCTION_FAILED; - } else if (sts->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) { + } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) { ql_log(ql_log_warn, fcport->vha, 0x5039, "Async-%s error - hdl=%x completion status(%x).\n", type, sp->handle, sts->comp_status); @@ -2045,14 +2073,18 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt) } /* Validate handle. */ - if (handle < req->num_outstanding_cmds) + if (handle < req->num_outstanding_cmds) { sp = req->outstanding_cmds[handle]; - else - sp = NULL; - - if (sp == NULL) { + if (!sp) { + ql_dbg(ql_dbg_io, vha, 0x3075, + "%s(%ld): Already returned command for status handle (0x%x).\n", + __func__, vha->host_no, sts->handle); + return; + } + } else { ql_dbg(ql_dbg_io, vha, 0x3017, - "Invalid status handle (0x%x).\n", sts->handle); + "Invalid status handle, out of range (0x%x).\n", + sts->handle); if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) { if (IS_P3P_TYPE(ha)) @@ -2339,12 +2371,12 @@ out: ql_dbg(ql_dbg_io, fcport->vha, 0x3022, "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu " "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x " - "rsp_info=0x%x resid=0x%x fw_resid=0x%x.\n", + "rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n", comp_status, scsi_status, res, vha->host_no, cp->device->id, cp->device->lun, fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id, cp->cmnd, scsi_bufflen(cp), rsp_info_len, - resid_len, fw_resid_len); + resid_len, fw_resid_len, sp, cp); if (rsp->status_srb == NULL) sp->done(ha, sp, res); @@ -2441,13 +2473,7 @@ qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt) } fatal: ql_log(ql_log_warn, vha, 0x5030, - "Error entry - invalid handle/queue.\n"); - - if (IS_P3P_TYPE(ha)) - set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); - else - set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); - qla2xxx_wake_dpc(vha); + "Error entry - invalid handle/queue (%04x).\n", que); } /** diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index 02b1c1c5355b..cb11e04be568 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -555,7 +555,9 @@ qla2x00_get_fw_version(scsi_qla_host_t *vha) if (IS_FWI2_CAPABLE(ha)) mcp->in_mb |= MBX_17|MBX_16|MBX_15; if (IS_QLA27XX(ha)) - mcp->in_mb |= MBX_21|MBX_20|MBX_19|MBX_18; + mcp->in_mb |= MBX_23 | MBX_22 | MBX_21 | MBX_20 | MBX_19 | + MBX_18 | MBX_14 | MBX_13 | MBX_11 | MBX_10 | MBX_9 | MBX_8; + mcp->flags = 0; mcp->tov = MBX_TOV_SECONDS; rval = qla2x00_mailbox_command(vha, mcp); @@ -571,6 +573,7 @@ qla2x00_get_fw_version(scsi_qla_host_t *vha) ha->fw_memory_size = 0x1FFFF; /* Defaults to 128KB. */ else ha->fw_memory_size = (mcp->mb[5] << 16) | mcp->mb[4]; + if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) || IS_QLA8044(ha)) { ha->mpi_version[0] = mcp->mb[10] & 0xff; ha->mpi_version[1] = mcp->mb[11] >> 8; @@ -580,6 +583,7 @@ qla2x00_get_fw_version(scsi_qla_host_t *vha) ha->phy_version[1] = mcp->mb[9] >> 8; ha->phy_version[2] = mcp->mb[9] & 0xff; } + if (IS_FWI2_CAPABLE(ha)) { ha->fw_attributes_h = mcp->mb[15]; ha->fw_attributes_ext[0] = mcp->mb[16]; @@ -591,7 +595,14 @@ qla2x00_get_fw_version(scsi_qla_host_t *vha) "%s: Ext_FwAttributes Upper: 0x%x, Lower: 0x%x.\n", __func__, mcp->mb[17], mcp->mb[16]); } + if (IS_QLA27XX(ha)) { + ha->mpi_version[0] = mcp->mb[10] & 0xff; + ha->mpi_version[1] = mcp->mb[11] >> 8; + ha->mpi_version[2] = mcp->mb[11] & 0xff; + ha->pep_version[0] = mcp->mb[13] & 0xff; + ha->pep_version[1] = mcp->mb[14] >> 8; + ha->pep_version[2] = mcp->mb[14] & 0xff; ha->fw_shared_ram_start = (mcp->mb[19] << 16) | mcp->mb[18]; ha->fw_shared_ram_end = (mcp->mb[21] << 16) | mcp->mb[20]; } @@ -1135,20 +1146,22 @@ qla2x00_get_adapter_id(scsi_qla_host_t *vha, uint16_t *id, uint8_t *al_pa, vha->fcoe_vn_port_mac[0] = mcp->mb[13] & 0xff; } /* If FA-WWN supported */ - if (mcp->mb[7] & BIT_14) { - vha->port_name[0] = MSB(mcp->mb[16]); - vha->port_name[1] = LSB(mcp->mb[16]); - vha->port_name[2] = MSB(mcp->mb[17]); - vha->port_name[3] = LSB(mcp->mb[17]); - vha->port_name[4] = MSB(mcp->mb[18]); - vha->port_name[5] = LSB(mcp->mb[18]); - vha->port_name[6] = MSB(mcp->mb[19]); - vha->port_name[7] = LSB(mcp->mb[19]); - fc_host_port_name(vha->host) = - wwn_to_u64(vha->port_name); - ql_dbg(ql_dbg_mbx, vha, 0x10ca, - "FA-WWN acquired %016llx\n", - wwn_to_u64(vha->port_name)); + if (IS_FAWWN_CAPABLE(vha->hw)) { + if (mcp->mb[7] & BIT_14) { + vha->port_name[0] = MSB(mcp->mb[16]); + vha->port_name[1] = LSB(mcp->mb[16]); + vha->port_name[2] = MSB(mcp->mb[17]); + vha->port_name[3] = LSB(mcp->mb[17]); + vha->port_name[4] = MSB(mcp->mb[18]); + vha->port_name[5] = LSB(mcp->mb[18]); + vha->port_name[6] = MSB(mcp->mb[19]); + vha->port_name[7] = LSB(mcp->mb[19]); + fc_host_port_name(vha->host) = + wwn_to_u64(vha->port_name); + ql_dbg(ql_dbg_mbx, vha, 0x10ca, + "FA-WWN acquired %016llx\n", + wwn_to_u64(vha->port_name)); + } } } @@ -1239,7 +1252,7 @@ qla2x00_init_firmware(scsi_qla_host_t *vha, uint16_t size) "Entered %s.\n", __func__); if (IS_P3P_TYPE(ha) && ql2xdbwr) - qla82xx_wr_32(ha, ha->nxdb_wr_ptr, + qla82xx_wr_32(ha, (uintptr_t __force)ha->nxdb_wr_ptr, (0x04 | (ha->portnum << 5) | (0 << 8) | (0 << 16))); if (ha->flags.npiv_supported) @@ -1865,7 +1878,6 @@ qla24xx_login_fabric(scsi_qla_host_t *vha, uint16_t loop_id, uint8_t domain, uint32_t iop[2]; struct qla_hw_data *ha = vha->hw; struct req_que *req; - struct rsp_que *rsp; ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1061, "Entered %s.\n", __func__); @@ -1874,7 +1886,6 @@ qla24xx_login_fabric(scsi_qla_host_t *vha, uint16_t loop_id, uint8_t domain, req = ha->req_q_map[0]; else req = vha->req; - rsp = req->rsp; lg = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &lg_dma); if (lg == NULL) { @@ -1888,11 +1899,11 @@ qla24xx_login_fabric(scsi_qla_host_t *vha, uint16_t loop_id, uint8_t domain, lg->entry_count = 1; lg->handle = MAKE_HANDLE(req->id, lg->handle); lg->nport_handle = cpu_to_le16(loop_id); - lg->control_flags = __constant_cpu_to_le16(LCF_COMMAND_PLOGI); + lg->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI); if (opt & BIT_0) - lg->control_flags |= __constant_cpu_to_le16(LCF_COND_PLOGI); + lg->control_flags |= cpu_to_le16(LCF_COND_PLOGI); if (opt & BIT_1) - lg->control_flags |= __constant_cpu_to_le16(LCF_SKIP_PRLI); + lg->control_flags |= cpu_to_le16(LCF_SKIP_PRLI); lg->port_id[0] = al_pa; lg->port_id[1] = area; lg->port_id[2] = domain; @@ -1907,7 +1918,7 @@ qla24xx_login_fabric(scsi_qla_host_t *vha, uint16_t loop_id, uint8_t domain, "Failed to complete IOCB -- error status (%x).\n", lg->entry_status); rval = QLA_FUNCTION_FAILED; - } else if (lg->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) { + } else if (lg->comp_status != cpu_to_le16(CS_COMPLETE)) { iop[0] = le32_to_cpu(lg->io_parameter[0]); iop[1] = le32_to_cpu(lg->io_parameter[1]); @@ -1961,7 +1972,7 @@ qla24xx_login_fabric(scsi_qla_host_t *vha, uint16_t loop_id, uint8_t domain, mb[10] |= BIT_0; /* Class 2. */ if (lg->io_parameter[9] || lg->io_parameter[10]) mb[10] |= BIT_1; /* Class 3. */ - if (lg->io_parameter[0] & __constant_cpu_to_le32(BIT_7)) + if (lg->io_parameter[0] & cpu_to_le32(BIT_7)) mb[10] |= BIT_7; /* Confirmed Completion * Allowed */ @@ -2142,7 +2153,6 @@ qla24xx_fabric_logout(scsi_qla_host_t *vha, uint16_t loop_id, uint8_t domain, dma_addr_t lg_dma; struct qla_hw_data *ha = vha->hw; struct req_que *req; - struct rsp_que *rsp; ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x106d, "Entered %s.\n", __func__); @@ -2159,13 +2169,12 @@ qla24xx_fabric_logout(scsi_qla_host_t *vha, uint16_t loop_id, uint8_t domain, req = ha->req_q_map[0]; else req = vha->req; - rsp = req->rsp; lg->entry_type = LOGINOUT_PORT_IOCB_TYPE; lg->entry_count = 1; lg->handle = MAKE_HANDLE(req->id, lg->handle); lg->nport_handle = cpu_to_le16(loop_id); lg->control_flags = - __constant_cpu_to_le16(LCF_COMMAND_LOGO|LCF_IMPL_LOGO| + cpu_to_le16(LCF_COMMAND_LOGO|LCF_IMPL_LOGO| LCF_FREE_NPORT); lg->port_id[0] = al_pa; lg->port_id[1] = area; @@ -2181,7 +2190,7 @@ qla24xx_fabric_logout(scsi_qla_host_t *vha, uint16_t loop_id, uint8_t domain, "Failed to complete IOCB -- error status (%x).\n", lg->entry_status); rval = QLA_FUNCTION_FAILED; - } else if (lg->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) { + } else if (lg->comp_status != cpu_to_le16(CS_COMPLETE)) { ql_dbg(ql_dbg_mbx, vha, 0x1071, "Failed to complete IOCB -- completion status (%x) " "ioparam=%x/%x.\n", le16_to_cpu(lg->comp_status), @@ -2415,7 +2424,8 @@ qla2x00_get_resource_cnts(scsi_qla_host_t *vha, uint16_t *cur_xchg_cnt, *orig_iocb_cnt = mcp->mb[10]; if (vha->hw->flags.npiv_supported && max_npiv_vports) *max_npiv_vports = mcp->mb[11]; - if ((IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw)) && max_fcfs) + if ((IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw) || + IS_QLA27XX(vha->hw)) && max_fcfs) *max_fcfs = mcp->mb[12]; } @@ -2672,7 +2682,7 @@ qla24xx_abort_command(srb_t *sp) "Failed to complete IOCB -- error status (%x).\n", abt->entry_status); rval = QLA_FUNCTION_FAILED; - } else if (abt->nport_handle != __constant_cpu_to_le16(0)) { + } else if (abt->nport_handle != cpu_to_le16(0)) { ql_dbg(ql_dbg_mbx, vha, 0x1090, "Failed to complete IOCB -- completion status (%x).\n", le16_to_cpu(abt->nport_handle)); @@ -2755,8 +2765,7 @@ __qla24xx_issue_tmf(char *name, uint32_t type, struct fc_port *fcport, "Failed to complete IOCB -- error status (%x).\n", sts->entry_status); rval = QLA_FUNCTION_FAILED; - } else if (sts->comp_status != - __constant_cpu_to_le16(CS_COMPLETE)) { + } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) { ql_dbg(ql_dbg_mbx, vha, 0x1096, "Failed to complete IOCB -- completion status (%x).\n", le16_to_cpu(sts->comp_status)); @@ -2852,7 +2861,8 @@ qla2x00_write_serdes_word(scsi_qla_host_t *vha, uint16_t addr, uint16_t data) mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; - if (!IS_QLA2031(vha->hw) && !IS_QLA27XX(vha->hw)) + if (!IS_QLA25XX(vha->hw) && !IS_QLA2031(vha->hw) && + !IS_QLA27XX(vha->hw)) return QLA_FUNCTION_FAILED; ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1182, @@ -2890,7 +2900,8 @@ qla2x00_read_serdes_word(scsi_qla_host_t *vha, uint16_t addr, uint16_t *data) mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; - if (!IS_QLA2031(vha->hw) && !IS_QLA27XX(vha->hw)) + if (!IS_QLA25XX(vha->hw) && !IS_QLA2031(vha->hw) && + !IS_QLA27XX(vha->hw)) return QLA_FUNCTION_FAILED; ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1185, @@ -3482,7 +3493,7 @@ qla24xx_modify_vp_config(scsi_qla_host_t *vha) "Failed to complete IOCB -- error status (%x).\n", vpmod->comp_status); rval = QLA_FUNCTION_FAILED; - } else if (vpmod->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) { + } else if (vpmod->comp_status != cpu_to_le16(CS_COMPLETE)) { ql_dbg(ql_dbg_mbx, vha, 0x10bf, "Failed to complete IOCB -- completion status (%x).\n", le16_to_cpu(vpmod->comp_status)); @@ -3541,7 +3552,7 @@ qla24xx_control_vp(scsi_qla_host_t *vha, int cmd) vce->entry_type = VP_CTRL_IOCB_TYPE; vce->entry_count = 1; vce->command = cpu_to_le16(cmd); - vce->vp_count = __constant_cpu_to_le16(1); + vce->vp_count = cpu_to_le16(1); /* index map in firmware starts with 1; decrement index * this is ok as we never use index 0 @@ -3561,7 +3572,7 @@ qla24xx_control_vp(scsi_qla_host_t *vha, int cmd) "Failed to complete IOCB -- error status (%x).\n", vce->entry_status); rval = QLA_FUNCTION_FAILED; - } else if (vce->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) { + } else if (vce->comp_status != cpu_to_le16(CS_COMPLETE)) { ql_dbg(ql_dbg_mbx, vha, 0x10c5, "Failed to complet IOCB -- completion status (%x).\n", le16_to_cpu(vce->comp_status)); @@ -3898,7 +3909,7 @@ qla25xx_init_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp) spin_lock_irqsave(&ha->hardware_lock, flags); if (!(rsp->options & BIT_0)) { WRT_REG_DWORD(rsp->rsp_q_out, 0); - if (!IS_QLA83XX(ha)) + if (!IS_QLA83XX(ha) && !IS_QLA27XX(ha)) WRT_REG_DWORD(rsp->rsp_q_in, 0); } @@ -5345,7 +5356,7 @@ qla83xx_restart_nic_firmware(scsi_qla_host_t *vha) mbx_cmd_t *mcp = &mc; struct qla_hw_data *ha = vha->hw; - if (!IS_QLA83XX(ha)) + if (!IS_QLA83XX(ha) && !IS_QLA27XX(ha)) return QLA_FUNCTION_FAILED; ql_dbg(ql_dbg_mbx, vha, 0x1143, "Entered %s.\n", __func__); diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c index cc94192511cf..c5dd594f6c31 100644 --- a/drivers/scsi/qla2xxx/qla_mid.c +++ b/drivers/scsi/qla2xxx/qla_mid.c @@ -371,7 +371,6 @@ qla2x00_do_dpc_vp(scsi_qla_host_t *vha) void qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha) { - int ret; struct qla_hw_data *ha = vha->hw; scsi_qla_host_t *vp; unsigned long flags = 0; @@ -392,7 +391,7 @@ qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha) atomic_inc(&vp->vref_count); spin_unlock_irqrestore(&ha->vport_slock, flags); - ret = qla2x00_do_dpc_vp(vp); + qla2x00_do_dpc_vp(vp); spin_lock_irqsave(&ha->vport_slock, flags); atomic_dec(&vp->vref_count); diff --git a/drivers/scsi/qla2xxx/qla_mr.c b/drivers/scsi/qla2xxx/qla_mr.c index 6d190b4b82a0..b5029e543b91 100644 --- a/drivers/scsi/qla2xxx/qla_mr.c +++ b/drivers/scsi/qla2xxx/qla_mr.c @@ -862,7 +862,7 @@ qlafx00_config_queues(struct scsi_qla_host *vha) dma_addr_t bar2_hdl = pci_resource_start(ha->pdev, 2); req->length = ha->req_que_len; - req->ring = (void *)ha->iobase + ha->req_que_off; + req->ring = (void __force *)ha->iobase + ha->req_que_off; req->dma = bar2_hdl + ha->req_que_off; if ((!req->ring) || (req->length == 0)) { ql_log_pci(ql_log_info, ha->pdev, 0x012f, @@ -877,7 +877,7 @@ qlafx00_config_queues(struct scsi_qla_host *vha) ha->req_que_off, (u64)req->dma); rsp->length = ha->rsp_que_len; - rsp->ring = (void *)ha->iobase + ha->rsp_que_off; + rsp->ring = (void __force *)ha->iobase + ha->rsp_que_off; rsp->dma = bar2_hdl + ha->rsp_que_off; if ((!rsp->ring) || (rsp->length == 0)) { ql_log_pci(ql_log_info, ha->pdev, 0x0131, @@ -1317,10 +1317,10 @@ int qlafx00_configure_devices(scsi_qla_host_t *vha) { int rval; - unsigned long flags, save_flags; + unsigned long flags; rval = QLA_SUCCESS; - save_flags = flags = vha->dpc_flags; + flags = vha->dpc_flags; ql_dbg(ql_dbg_disc, vha, 0x2090, "Configure devices -- dpc flags =0x%lx\n", flags); @@ -1425,7 +1425,7 @@ qlafx00_init_response_q_entries(struct rsp_que *rsp) pkt = rsp->ring_ptr; for (cnt = 0; cnt < rsp->length; cnt++) { pkt->signature = RESPONSE_PROCESSED; - WRT_REG_DWORD((void __iomem *)&pkt->signature, + WRT_REG_DWORD((void __force __iomem *)&pkt->signature, RESPONSE_PROCESSED); pkt++; } @@ -2279,7 +2279,6 @@ qlafx00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt) struct sts_entry_fx00 *sts; __le16 comp_status; __le16 scsi_status; - uint16_t ox_id; __le16 lscsi_status; int32_t resid; uint32_t sense_len, par_sense_len, rsp_info_len, resid_len, @@ -2344,7 +2343,6 @@ qlafx00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt) fcport = sp->fcport; - ox_id = 0; sense_len = par_sense_len = rsp_info_len = resid_len = fw_resid_len = 0; if (scsi_status & cpu_to_le16((uint16_t)SS_SENSE_LEN_VALID)) @@ -2528,12 +2526,12 @@ check_scsi_status: ql_dbg(ql_dbg_io, fcport->vha, 0x3058, "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu " "tgt_id: 0x%x lscsi_status: 0x%x cdb=%10phN len=0x%x " - "rsp_info=0x%x resid=0x%x fw_resid=0x%x sense_len=0x%x, " + "rsp_info=%p resid=0x%x fw_resid=0x%x sense_len=0x%x, " "par_sense_len=0x%x, rsp_info_len=0x%x\n", comp_status, scsi_status, res, vha->host_no, cp->device->id, cp->device->lun, fcport->tgt_id, lscsi_status, cp->cmnd, scsi_bufflen(cp), - rsp_info_len, resid_len, fw_resid_len, sense_len, + rsp_info, resid_len, fw_resid_len, sense_len, par_sense_len, rsp_info_len); if (rsp->status_srb == NULL) @@ -3009,7 +3007,7 @@ qlafx00_build_scsi_iocbs(srb_t *sp, struct cmd_type_7_fx00 *cmd_pkt, /* No data transfer */ if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { - lcmd_pkt->byte_count = __constant_cpu_to_le32(0); + lcmd_pkt->byte_count = cpu_to_le32(0); return; } @@ -3071,7 +3069,7 @@ qlafx00_build_scsi_iocbs(srb_t *sp, struct cmd_type_7_fx00 *cmd_pkt, int qlafx00_start_scsi(srb_t *sp) { - int ret, nseg; + int nseg; unsigned long flags; uint32_t index; uint32_t handle; @@ -3088,8 +3086,6 @@ qlafx00_start_scsi(srb_t *sp) struct scsi_lun llun; /* Setup device pointers. */ - ret = 0; - rsp = ha->rsp_q_map[0]; req = vha->req; diff --git a/drivers/scsi/qla2xxx/qla_nx.c b/drivers/scsi/qla2xxx/qla_nx.c index 1620b0ec977b..eb0cc5475c45 100644 --- a/drivers/scsi/qla2xxx/qla_nx.c +++ b/drivers/scsi/qla2xxx/qla_nx.c @@ -347,32 +347,31 @@ char *qdev_state(uint32_t dev_state) } /* - * In: 'off' is offset from CRB space in 128M pci map - * Out: 'off' is 2M pci map addr + * In: 'off_in' is offset from CRB space in 128M pci map + * Out: 'off_out' is 2M pci map addr * side effect: lock crb window */ static void -qla82xx_pci_set_crbwindow_2M(struct qla_hw_data *ha, ulong *off) +qla82xx_pci_set_crbwindow_2M(struct qla_hw_data *ha, ulong off_in, + void __iomem **off_out) { u32 win_read; scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); - ha->crb_win = CRB_HI(*off); - writel(ha->crb_win, - (void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase)); + ha->crb_win = CRB_HI(off_in); + writel(ha->crb_win, CRB_WINDOW_2M + ha->nx_pcibase); /* Read back value to make sure write has gone through before trying * to use it. */ - win_read = RD_REG_DWORD((void __iomem *) - (CRB_WINDOW_2M + ha->nx_pcibase)); + win_read = RD_REG_DWORD(CRB_WINDOW_2M + ha->nx_pcibase); if (win_read != ha->crb_win) { ql_dbg(ql_dbg_p3p, vha, 0xb000, "%s: Written crbwin (0x%x) " "!= Read crbwin (0x%x), off=0x%lx.\n", - __func__, ha->crb_win, win_read, *off); + __func__, ha->crb_win, win_read, off_in); } - *off = (*off & MASK(16)) + CRB_INDIRECT_2M + ha->nx_pcibase; + *off_out = (off_in & MASK(16)) + CRB_INDIRECT_2M + ha->nx_pcibase; } static inline unsigned long @@ -417,29 +416,30 @@ qla82xx_pci_set_crbwindow(struct qla_hw_data *ha, u64 off) } static int -qla82xx_pci_get_crb_addr_2M(struct qla_hw_data *ha, ulong *off) +qla82xx_pci_get_crb_addr_2M(struct qla_hw_data *ha, ulong off_in, + void __iomem **off_out) { struct crb_128M_2M_sub_block_map *m; - if (*off >= QLA82XX_CRB_MAX) + if (off_in >= QLA82XX_CRB_MAX) return -1; - if (*off >= QLA82XX_PCI_CAMQM && (*off < QLA82XX_PCI_CAMQM_2M_END)) { - *off = (*off - QLA82XX_PCI_CAMQM) + + if (off_in >= QLA82XX_PCI_CAMQM && off_in < QLA82XX_PCI_CAMQM_2M_END) { + *off_out = (off_in - QLA82XX_PCI_CAMQM) + QLA82XX_PCI_CAMQM_2M_BASE + ha->nx_pcibase; return 0; } - if (*off < QLA82XX_PCI_CRBSPACE) + if (off_in < QLA82XX_PCI_CRBSPACE) return -1; - *off -= QLA82XX_PCI_CRBSPACE; + *off_out = (void __iomem *)(off_in - QLA82XX_PCI_CRBSPACE); /* Try direct map */ - m = &crb_128M_2M_map[CRB_BLK(*off)].sub_block[CRB_SUBBLK(*off)]; + m = &crb_128M_2M_map[CRB_BLK(off_in)].sub_block[CRB_SUBBLK(off_in)]; - if (m->valid && (m->start_128M <= *off) && (m->end_128M > *off)) { - *off = *off + m->start_2M - m->start_128M + ha->nx_pcibase; + if (m->valid && (m->start_128M <= off_in) && (m->end_128M > off_in)) { + *off_out = off_in + m->start_2M - m->start_128M + ha->nx_pcibase; return 0; } /* Not in direct map, use crb window */ @@ -465,51 +465,61 @@ static int qla82xx_crb_win_lock(struct qla_hw_data *ha) } int -qla82xx_wr_32(struct qla_hw_data *ha, ulong off, u32 data) +qla82xx_wr_32(struct qla_hw_data *ha, ulong off_in, u32 data) { + void __iomem *off; unsigned long flags = 0; int rv; - rv = qla82xx_pci_get_crb_addr_2M(ha, &off); + rv = qla82xx_pci_get_crb_addr_2M(ha, off_in, &off); BUG_ON(rv == -1); if (rv == 1) { +#ifndef __CHECKER__ write_lock_irqsave(&ha->hw_lock, flags); +#endif qla82xx_crb_win_lock(ha); - qla82xx_pci_set_crbwindow_2M(ha, &off); + qla82xx_pci_set_crbwindow_2M(ha, off_in, &off); } writel(data, (void __iomem *)off); if (rv == 1) { qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK)); +#ifndef __CHECKER__ write_unlock_irqrestore(&ha->hw_lock, flags); +#endif } return 0; } int -qla82xx_rd_32(struct qla_hw_data *ha, ulong off) +qla82xx_rd_32(struct qla_hw_data *ha, ulong off_in) { + void __iomem *off; unsigned long flags = 0; int rv; u32 data; - rv = qla82xx_pci_get_crb_addr_2M(ha, &off); + rv = qla82xx_pci_get_crb_addr_2M(ha, off_in, &off); BUG_ON(rv == -1); if (rv == 1) { +#ifndef __CHECKER__ write_lock_irqsave(&ha->hw_lock, flags); +#endif qla82xx_crb_win_lock(ha); - qla82xx_pci_set_crbwindow_2M(ha, &off); + qla82xx_pci_set_crbwindow_2M(ha, off_in, &off); } - data = RD_REG_DWORD((void __iomem *)off); + data = RD_REG_DWORD(off); if (rv == 1) { qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK)); +#ifndef __CHECKER__ write_unlock_irqrestore(&ha->hw_lock, flags); +#endif } return data; } @@ -547,9 +557,6 @@ void qla82xx_idc_unlock(struct qla_hw_data *ha) qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_UNLOCK)); } -/* PCI Windowing for DDR regions. */ -#define QLA82XX_ADDR_IN_RANGE(addr, low, high) \ - (((addr) <= (high)) && ((addr) >= (low))) /* * check memory access boundary. * used by test agent. support ddr access only for now @@ -558,9 +565,9 @@ static unsigned long qla82xx_pci_mem_bound_check(struct qla_hw_data *ha, unsigned long long addr, int size) { - if (!QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET, + if (!addr_in_range(addr, QLA82XX_ADDR_DDR_NET, QLA82XX_ADDR_DDR_NET_MAX) || - !QLA82XX_ADDR_IN_RANGE(addr + size - 1, QLA82XX_ADDR_DDR_NET, + !addr_in_range(addr + size - 1, QLA82XX_ADDR_DDR_NET, QLA82XX_ADDR_DDR_NET_MAX) || ((size != 1) && (size != 2) && (size != 4) && (size != 8))) return 0; @@ -577,7 +584,7 @@ qla82xx_pci_set_window(struct qla_hw_data *ha, unsigned long long addr) u32 win_read; scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); - if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET, + if (addr_in_range(addr, QLA82XX_ADDR_DDR_NET, QLA82XX_ADDR_DDR_NET_MAX)) { /* DDR network side */ window = MN_WIN(addr); @@ -592,7 +599,7 @@ qla82xx_pci_set_window(struct qla_hw_data *ha, unsigned long long addr) __func__, window, win_read); } addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_DDR_NET; - } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0, + } else if (addr_in_range(addr, QLA82XX_ADDR_OCM0, QLA82XX_ADDR_OCM0_MAX)) { unsigned int temp1; if ((addr & 0x00ff800) == 0xff800) { @@ -615,7 +622,7 @@ qla82xx_pci_set_window(struct qla_hw_data *ha, unsigned long long addr) } addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_OCM0_2M; - } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET, + } else if (addr_in_range(addr, QLA82XX_ADDR_QDR_NET, QLA82XX_P3_ADDR_QDR_NET_MAX)) { /* QDR network side */ window = MS_WIN(addr); @@ -656,16 +663,16 @@ static int qla82xx_pci_is_same_window(struct qla_hw_data *ha, qdr_max = QLA82XX_P3_ADDR_QDR_NET_MAX; /* DDR network side */ - if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET, + if (addr_in_range(addr, QLA82XX_ADDR_DDR_NET, QLA82XX_ADDR_DDR_NET_MAX)) BUG(); - else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0, + else if (addr_in_range(addr, QLA82XX_ADDR_OCM0, QLA82XX_ADDR_OCM0_MAX)) return 1; - else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM1, + else if (addr_in_range(addr, QLA82XX_ADDR_OCM1, QLA82XX_ADDR_OCM1_MAX)) return 1; - else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET, qdr_max)) { + else if (addr_in_range(addr, QLA82XX_ADDR_QDR_NET, qdr_max)) { /* QDR network side */ window = ((addr - QLA82XX_ADDR_QDR_NET) >> 22) & 0x3f; if (ha->qdr_sn_window == window) @@ -922,20 +929,18 @@ qla82xx_md_rw_32(struct qla_hw_data *ha, uint32_t off, u32 data, uint8_t flag) { uint32_t off_value, rval = 0; - WRT_REG_DWORD((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase), - (off & 0xFFFF0000)); + WRT_REG_DWORD(CRB_WINDOW_2M + ha->nx_pcibase, off & 0xFFFF0000); /* Read back value to make sure write has gone through */ - RD_REG_DWORD((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase)); + RD_REG_DWORD(CRB_WINDOW_2M + ha->nx_pcibase); off_value = (off & 0x0000FFFF); if (flag) - WRT_REG_DWORD((void __iomem *) - (off_value + CRB_INDIRECT_2M + ha->nx_pcibase), - data); + WRT_REG_DWORD(off_value + CRB_INDIRECT_2M + ha->nx_pcibase, + data); else - rval = RD_REG_DWORD((void __iomem *) - (off_value + CRB_INDIRECT_2M + ha->nx_pcibase)); + rval = RD_REG_DWORD(off_value + CRB_INDIRECT_2M + + ha->nx_pcibase); return rval; } @@ -1663,8 +1668,7 @@ qla82xx_iospace_config(struct qla_hw_data *ha) } len = pci_resource_len(ha->pdev, 0); - ha->nx_pcibase = - (unsigned long)ioremap(pci_resource_start(ha->pdev, 0), len); + ha->nx_pcibase = ioremap(pci_resource_start(ha->pdev, 0), len); if (!ha->nx_pcibase) { ql_log_pci(ql_log_fatal, ha->pdev, 0x000e, "Cannot remap pcibase MMIO, aborting.\n"); @@ -1673,17 +1677,13 @@ qla82xx_iospace_config(struct qla_hw_data *ha) /* Mapping of IO base pointer */ if (IS_QLA8044(ha)) { - ha->iobase = - (device_reg_t *)((uint8_t *)ha->nx_pcibase); + ha->iobase = ha->nx_pcibase; } else if (IS_QLA82XX(ha)) { - ha->iobase = - (device_reg_t *)((uint8_t *)ha->nx_pcibase + - 0xbc000 + (ha->pdev->devfn << 11)); + ha->iobase = ha->nx_pcibase + 0xbc000 + (ha->pdev->devfn << 11); } if (!ql2xdbwr) { - ha->nxdb_wr_ptr = - (unsigned long)ioremap((pci_resource_start(ha->pdev, 4) + + ha->nxdb_wr_ptr = ioremap((pci_resource_start(ha->pdev, 4) + (ha->pdev->devfn << 12)), 4); if (!ha->nxdb_wr_ptr) { ql_log_pci(ql_log_fatal, ha->pdev, 0x000f, @@ -1694,10 +1694,10 @@ qla82xx_iospace_config(struct qla_hw_data *ha) /* Mapping of IO base pointer, * door bell read and write pointer */ - ha->nxdb_rd_ptr = (uint8_t *) ha->nx_pcibase + (512 * 1024) + + ha->nxdb_rd_ptr = ha->nx_pcibase + (512 * 1024) + (ha->pdev->devfn * 8); } else { - ha->nxdb_wr_ptr = (ha->pdev->devfn == 6 ? + ha->nxdb_wr_ptr = (void __iomem *)(ha->pdev->devfn == 6 ? QLA82XX_CAMRAM_DB1 : QLA82XX_CAMRAM_DB2); } @@ -1707,12 +1707,12 @@ qla82xx_iospace_config(struct qla_hw_data *ha) ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc006, "nx_pci_base=%p iobase=%p " "max_req_queues=%d msix_count=%d.\n", - (void *)ha->nx_pcibase, ha->iobase, + ha->nx_pcibase, ha->iobase, ha->max_req_queues, ha->msix_count); ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0010, "nx_pci_base=%p iobase=%p " "max_req_queues=%d msix_count=%d.\n", - (void *)ha->nx_pcibase, ha->iobase, + ha->nx_pcibase, ha->iobase, ha->max_req_queues, ha->msix_count); return 0; @@ -1740,8 +1740,8 @@ qla82xx_pci_config(scsi_qla_host_t *vha) ret = pci_set_mwi(ha->pdev); ha->chip_revision = ha->pdev->revision; ql_dbg(ql_dbg_init, vha, 0x0043, - "Chip revision:%d.\n", - ha->chip_revision); + "Chip revision:%d; pci_set_mwi() returned %d.\n", + ha->chip_revision, ret); return 0; } @@ -1768,8 +1768,8 @@ void qla82xx_config_rings(struct scsi_qla_host *vha) /* Setup ring parameters in initialization control block. */ icb = (struct init_cb_81xx *)ha->init_cb; - icb->request_q_outpointer = __constant_cpu_to_le16(0); - icb->response_q_inpointer = __constant_cpu_to_le16(0); + icb->request_q_outpointer = cpu_to_le16(0); + icb->response_q_inpointer = cpu_to_le16(0); icb->request_q_length = cpu_to_le16(req->length); icb->response_q_length = cpu_to_le16(rsp->length); icb->request_q_address[0] = cpu_to_le32(LSD(req->dma)); @@ -1777,9 +1777,9 @@ void qla82xx_config_rings(struct scsi_qla_host *vha) icb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma)); icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma)); - WRT_REG_DWORD((unsigned long __iomem *)®->req_q_out[0], 0); - WRT_REG_DWORD((unsigned long __iomem *)®->rsp_q_in[0], 0); - WRT_REG_DWORD((unsigned long __iomem *)®->rsp_q_out[0], 0); + WRT_REG_DWORD(®->req_q_out[0], 0); + WRT_REG_DWORD(®->rsp_q_in[0], 0); + WRT_REG_DWORD(®->rsp_q_out[0], 0); } static int @@ -2298,7 +2298,7 @@ void qla82xx_init_flags(struct qla_hw_data *ha) ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg; } -inline void +static inline void qla82xx_set_idc_version(scsi_qla_host_t *vha) { int idc_ver; @@ -2481,14 +2481,12 @@ try_blob_fw: ql_log(ql_log_info, vha, 0x00a5, "Firmware loaded successfully from binary blob.\n"); return QLA_SUCCESS; - } else { - ql_log(ql_log_fatal, vha, 0x00a6, - "Firmware load failed for binary blob.\n"); - blob->fw = NULL; - blob = NULL; - goto fw_load_failed; } - return QLA_SUCCESS; + + ql_log(ql_log_fatal, vha, 0x00a6, + "Firmware load failed for binary blob.\n"); + blob->fw = NULL; + blob = NULL; fw_load_failed: return QLA_FUNCTION_FAILED; @@ -2549,7 +2547,7 @@ qla82xx_read_flash_data(scsi_qla_host_t *vha, uint32_t *dwptr, uint32_t faddr, "Do ROM fast read failed.\n"); goto done_read; } - dwptr[i] = __constant_cpu_to_le32(val); + dwptr[i] = cpu_to_le32(val); } done_read: return dwptr; @@ -2671,7 +2669,7 @@ qla82xx_write_flash_data(struct scsi_qla_host *vha, uint32_t *dwptr, { int ret; uint32_t liter; - uint32_t sec_mask, rest_addr; + uint32_t rest_addr; dma_addr_t optrom_dma; void *optrom = NULL; int page_mode = 0; @@ -2693,7 +2691,6 @@ qla82xx_write_flash_data(struct scsi_qla_host *vha, uint32_t *dwptr, } rest_addr = ha->fdt_block_size - 1; - sec_mask = ~rest_addr; ret = qla82xx_unprotect_flash(ha); if (ret) { @@ -2789,7 +2786,6 @@ qla82xx_start_iocbs(scsi_qla_host_t *vha) { struct qla_hw_data *ha = vha->hw; struct req_que *req = ha->req_q_map[0]; - struct device_reg_82xx __iomem *reg; uint32_t dbval; /* Adjust ring index. */ @@ -2800,18 +2796,16 @@ qla82xx_start_iocbs(scsi_qla_host_t *vha) } else req->ring_ptr++; - reg = &ha->iobase->isp82; dbval = 0x04 | (ha->portnum << 5); dbval = dbval | (req->id << 8) | (req->ring_index << 16); if (ql2xdbwr) - qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval); + qla82xx_wr_32(ha, (unsigned long)ha->nxdb_wr_ptr, dbval); else { - WRT_REG_DWORD((unsigned long __iomem *)ha->nxdb_wr_ptr, dbval); + WRT_REG_DWORD(ha->nxdb_wr_ptr, dbval); wmb(); - while (RD_REG_DWORD((void __iomem *)ha->nxdb_rd_ptr) != dbval) { - WRT_REG_DWORD((unsigned long __iomem *)ha->nxdb_wr_ptr, - dbval); + while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) { + WRT_REG_DWORD(ha->nxdb_wr_ptr, dbval); wmb(); } } @@ -3842,8 +3836,7 @@ qla82xx_minidump_process_rdocm(scsi_qla_host_t *vha, loop_cnt = ocm_hdr->op_count; for (i = 0; i < loop_cnt; i++) { - r_value = RD_REG_DWORD((void __iomem *) - (r_addr + ha->nx_pcibase)); + r_value = RD_REG_DWORD(r_addr + ha->nx_pcibase); *data_ptr++ = cpu_to_le32(r_value); r_addr += r_stride; } diff --git a/drivers/scsi/qla2xxx/qla_nx2.c b/drivers/scsi/qla2xxx/qla_nx2.c index 000c57e4d033..007192d7bad8 100644 --- a/drivers/scsi/qla2xxx/qla_nx2.c +++ b/drivers/scsi/qla2xxx/qla_nx2.c @@ -462,12 +462,11 @@ qla8044_flash_lock(scsi_qla_host_t *vha) static void qla8044_flash_unlock(scsi_qla_host_t *vha) { - int ret_val; struct qla_hw_data *ha = vha->hw; /* Reading FLASH_UNLOCK register unlocks the Flash */ qla8044_wr_reg(ha, QLA8044_FLASH_LOCK_ID, 0xFF); - ret_val = qla8044_rd_reg(ha, QLA8044_FLASH_UNLOCK); + qla8044_rd_reg(ha, QLA8044_FLASH_UNLOCK); } @@ -561,7 +560,7 @@ qla8044_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf, return buf; } -inline int +static inline int qla8044_need_reset(struct scsi_qla_host *vha) { uint32_t drv_state, drv_active; @@ -1130,9 +1129,9 @@ qla8044_ms_mem_write_128b(struct scsi_qla_host *vha, } for (i = 0; i < count; i++, addr += 16) { - if (!((QLA8044_ADDR_IN_RANGE(addr, QLA8044_ADDR_QDR_NET, + if (!((addr_in_range(addr, QLA8044_ADDR_QDR_NET, QLA8044_ADDR_QDR_NET_MAX)) || - (QLA8044_ADDR_IN_RANGE(addr, QLA8044_ADDR_DDR_NET, + (addr_in_range(addr, QLA8044_ADDR_DDR_NET, QLA8044_ADDR_DDR_NET_MAX)))) { ret_val = QLA_FUNCTION_FAILED; goto exit_ms_mem_write_unlock; @@ -1605,7 +1604,7 @@ qla8044_set_idc_dontreset(struct scsi_qla_host *vha) qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL, idc_ctrl); } -inline void +static inline void qla8044_set_rst_ready(struct scsi_qla_host *vha) { uint32_t drv_state; @@ -2992,7 +2991,7 @@ qla8044_minidump_process_rddfe(struct scsi_qla_host *vha, uint32_t addr1, addr2, value, data, temp, wrVal; uint8_t stride, stride2; uint16_t count; - uint32_t poll, mask, data_size, modify_mask; + uint32_t poll, mask, modify_mask; uint32_t wait_count = 0; uint32_t *data_ptr = *d_ptr; @@ -3009,7 +3008,6 @@ qla8044_minidump_process_rddfe(struct scsi_qla_host *vha, poll = rddfe->poll; mask = rddfe->mask; modify_mask = rddfe->modify_mask; - data_size = rddfe->data_size; addr2 = addr1 + stride; @@ -3091,7 +3089,7 @@ qla8044_minidump_process_rdmdio(struct scsi_qla_host *vha, uint8_t stride1, stride2; uint32_t addr3, addr4, addr5, addr6, addr7; uint16_t count, loop_cnt; - uint32_t poll, mask; + uint32_t mask; uint32_t *data_ptr = *d_ptr; struct qla8044_minidump_entry_rdmdio *rdmdio; @@ -3105,7 +3103,6 @@ qla8044_minidump_process_rdmdio(struct scsi_qla_host *vha, stride2 = rdmdio->stride_2; count = rdmdio->count; - poll = rdmdio->poll; mask = rdmdio->mask; value2 = rdmdio->value_2; @@ -3164,7 +3161,7 @@ error: static uint32_t qla8044_minidump_process_pollwr(struct scsi_qla_host *vha, struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr) { - uint32_t addr1, addr2, value1, value2, poll, mask, r_value; + uint32_t addr1, addr2, value1, value2, poll, r_value; uint32_t wait_count = 0; struct qla8044_minidump_entry_pollwr *pollwr_hdr; @@ -3175,7 +3172,6 @@ static uint32_t qla8044_minidump_process_pollwr(struct scsi_qla_host *vha, value2 = pollwr_hdr->value_2; poll = pollwr_hdr->poll; - mask = pollwr_hdr->mask; while (wait_count < poll) { qla8044_rd_reg_indirect(vha, addr1, &r_value); diff --git a/drivers/scsi/qla2xxx/qla_nx2.h b/drivers/scsi/qla2xxx/qla_nx2.h index ada36057d7cd..02fe3c4cdf55 100644 --- a/drivers/scsi/qla2xxx/qla_nx2.h +++ b/drivers/scsi/qla2xxx/qla_nx2.h @@ -58,8 +58,10 @@ #define QLA8044_PCI_QDR_NET_MAX ((unsigned long)0x043fffff) /* PCI Windowing for DDR regions. */ -#define QLA8044_ADDR_IN_RANGE(addr, low, high) \ - (((addr) <= (high)) && ((addr) >= (low))) +static inline bool addr_in_range(u64 addr, u64 low, u64 high) +{ + return addr <= high && addr >= low; +} /* Indirectly Mapped Registers */ #define QLA8044_FLASH_SPI_STATUS 0x2808E010 diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index a28815b8276f..c2dd17b1d26f 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -656,7 +656,7 @@ qla2x00_sp_compl(void *data, void *ptr, int res) "SP reference-count to ZERO -- sp=%p cmd=%p.\n", sp, GET_CMD_SP(sp)); if (ql2xextended_error_logging & ql_dbg_io) - BUG(); + WARN_ON(atomic_read(&sp->ref_count) == 0); return; } if (!atomic_dec_and_test(&sp->ref_count)) @@ -958,8 +958,8 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd) } ql_dbg(ql_dbg_taskm, vha, 0x8002, - "Aborting from RISC nexus=%ld:%d:%llu sp=%p cmd=%p\n", - vha->host_no, id, lun, sp, cmd); + "Aborting from RISC nexus=%ld:%d:%llu sp=%p cmd=%p handle=%x\n", + vha->host_no, id, lun, sp, cmd, sp->handle); /* Get a reference to the sp and drop the lock.*/ sp_get(sp); @@ -967,14 +967,9 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd) spin_unlock_irqrestore(&ha->hardware_lock, flags); rval = ha->isp_ops->abort_command(sp); if (rval) { - if (rval == QLA_FUNCTION_PARAMETER_ERROR) { - /* - * Decrement the ref_count since we can't find the - * command - */ - atomic_dec(&sp->ref_count); + if (rval == QLA_FUNCTION_PARAMETER_ERROR) ret = SUCCESS; - } else + else ret = FAILED; ql_dbg(ql_dbg_taskm, vha, 0x8003, @@ -986,12 +981,6 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd) } spin_lock_irqsave(&ha->hardware_lock, flags); - /* - * Clear the slot in the oustanding_cmds array if we can't find the - * command to reclaim the resources. - */ - if (rval == QLA_FUNCTION_PARAMETER_ERROR) - vha->req->outstanding_cmds[sp->handle] = NULL; sp->done(ha, sp, 0); spin_unlock_irqrestore(&ha->hardware_lock, flags); @@ -2219,6 +2208,13 @@ qla2x00_set_isp_flags(struct qla_hw_data *ha) ha->device_type |= DT_IIDMA; ha->fw_srisc_address = RISC_START_ADDRESS_2400; break; + case PCI_DEVICE_ID_QLOGIC_ISP2261: + ha->device_type |= DT_ISP2261; + ha->device_type |= DT_ZIO_SUPPORTED; + ha->device_type |= DT_FWI2; + ha->device_type |= DT_IIDMA; + ha->fw_srisc_address = RISC_START_ADDRESS_2400; + break; } if (IS_QLA82XX(ha)) @@ -2296,7 +2292,8 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) pdev->device == PCI_DEVICE_ID_QLOGIC_ISPF001 || pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8044 || pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2071 || - pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2271) { + pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2271 || + pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2261) { bars = pci_select_bars(pdev, IORESOURCE_MEM); mem_only = 1; ql_dbg_pci(ql_dbg_init, pdev, 0x0007, @@ -2504,6 +2501,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) ha->mbx_count = MAILBOX_REGISTER_COUNT; req_length = REQUEST_ENTRY_CNT_24XX; rsp_length = RESPONSE_ENTRY_CNT_2300; + ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX; ha->max_loop_id = SNS_LAST_LOOP_ID_2300; ha->init_cb_size = sizeof(struct mid_init_cb_81xx); ha->gid_list_info_size = 8; @@ -2973,7 +2971,6 @@ qla2x00_shutdown(struct pci_dev *pdev) static void qla2x00_delete_all_vps(struct qla_hw_data *ha, scsi_qla_host_t *base_vha) { - struct Scsi_Host *scsi_host; scsi_qla_host_t *vha; unsigned long flags; @@ -2984,7 +2981,7 @@ qla2x00_delete_all_vps(struct qla_hw_data *ha, scsi_qla_host_t *base_vha) BUG_ON(base_vha->list.next == &ha->vp_list); /* This assumes first entry in ha->vp_list is always base vha */ vha = list_first_entry(&base_vha->list, scsi_qla_host_t, list); - scsi_host = scsi_host_get(vha->host); + scsi_host_get(vha->host); spin_unlock_irqrestore(&ha->vport_slock, flags); mutex_unlock(&ha->vport_lock); @@ -3229,11 +3226,15 @@ qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport, spin_lock_irqsave(vha->host->host_lock, flags); fcport->drport = rport; spin_unlock_irqrestore(vha->host->host_lock, flags); + qlt_do_generation_tick(vha, &base_vha->total_fcport_update_gen); set_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags); qla2xxx_wake_dpc(base_vha); } else { - fc_remote_port_delete(rport); - qlt_fc_port_deleted(vha, fcport); + int now; + if (rport) + fc_remote_port_delete(rport); + qlt_do_generation_tick(vha, &now); + qlt_fc_port_deleted(vha, fcport, now); } } @@ -3270,9 +3271,10 @@ void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport, if (!do_login) return; + set_bit(RELOGIN_NEEDED, &vha->dpc_flags); + if (fcport->login_retry == 0) { fcport->login_retry = vha->hw->login_retry_count; - set_bit(RELOGIN_NEEDED, &vha->dpc_flags); ql_dbg(ql_dbg_disc, vha, 0x2067, "Port login retry %8phN, id = 0x%04x retry cnt=%d.\n", @@ -3763,8 +3765,11 @@ struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht, INIT_LIST_HEAD(&vha->vp_fcports); INIT_LIST_HEAD(&vha->work_list); INIT_LIST_HEAD(&vha->list); + INIT_LIST_HEAD(&vha->qla_cmd_list); + INIT_LIST_HEAD(&vha->qla_sess_op_cmd_list); spin_lock_init(&vha->work_lock); + spin_lock_init(&vha->cmd_list_lock); sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no); ql_dbg(ql_dbg_init, vha, 0x0041, @@ -4793,7 +4798,6 @@ qla2x00_disable_board_on_pci_error(struct work_struct *work) static int qla2x00_do_dpc(void *data) { - int rval; scsi_qla_host_t *base_vha; struct qla_hw_data *ha; @@ -5025,7 +5029,7 @@ loop_resync_check: if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &base_vha->dpc_flags))) { - rval = qla2x00_loop_resync(base_vha); + qla2x00_loop_resync(base_vha); clear_bit(LOOP_RESYNC_ACTIVE, &base_vha->dpc_flags); @@ -5709,6 +5713,7 @@ static struct pci_device_id qla2xxx_pci_tbl[] = { { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8044) }, { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2071) }, { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2271) }, + { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2261) }, { 0 }, }; MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl); diff --git a/drivers/scsi/qla2xxx/qla_sup.c b/drivers/scsi/qla2xxx/qla_sup.c index 028e8c8a7de9..3272ed5bbcc7 100644 --- a/drivers/scsi/qla2xxx/qla_sup.c +++ b/drivers/scsi/qla2xxx/qla_sup.c @@ -316,7 +316,7 @@ qla2x00_clear_nvram_protection(struct qla_hw_data *ha) wprot_old = cpu_to_le16(qla2x00_get_nvram_word(ha, ha->nvram_base)); stat = qla2x00_write_nvram_word_tmo(ha, ha->nvram_base, - __constant_cpu_to_le16(0x1234), 100000); + cpu_to_le16(0x1234), 100000); wprot = cpu_to_le16(qla2x00_get_nvram_word(ha, ha->nvram_base)); if (stat != QLA_SUCCESS || wprot != 0x1234) { /* Write enable. */ @@ -691,9 +691,9 @@ qla2xxx_get_flt_info(scsi_qla_host_t *vha, uint32_t flt_addr) region = (struct qla_flt_region *)&flt[1]; ha->isp_ops->read_optrom(vha, (uint8_t *)req->ring, flt_addr << 2, OPTROM_BURST_SIZE); - if (*wptr == __constant_cpu_to_le16(0xffff)) + if (*wptr == cpu_to_le16(0xffff)) goto no_flash_data; - if (flt->version != __constant_cpu_to_le16(1)) { + if (flt->version != cpu_to_le16(1)) { ql_log(ql_log_warn, vha, 0x0047, "Unsupported FLT detected: version=0x%x length=0x%x checksum=0x%x.\n", le16_to_cpu(flt->version), le16_to_cpu(flt->length), @@ -892,7 +892,7 @@ qla2xxx_get_fdt_info(scsi_qla_host_t *vha) fdt = (struct qla_fdt_layout *)req->ring; ha->isp_ops->read_optrom(vha, (uint8_t *)req->ring, ha->flt_region_fdt << 2, OPTROM_BURST_SIZE); - if (*wptr == __constant_cpu_to_le16(0xffff)) + if (*wptr == cpu_to_le16(0xffff)) goto no_flash_data; if (fdt->sig[0] != 'Q' || fdt->sig[1] != 'L' || fdt->sig[2] != 'I' || fdt->sig[3] != 'D') @@ -991,7 +991,7 @@ qla2xxx_get_idc_param(scsi_qla_host_t *vha) ha->isp_ops->read_optrom(vha, (uint8_t *)req->ring, QLA82XX_IDC_PARAM_ADDR , 8); - if (*wptr == __constant_cpu_to_le32(0xffffffff)) { + if (*wptr == cpu_to_le32(0xffffffff)) { ha->fcoe_dev_init_timeout = QLA82XX_ROM_DEV_INIT_TIMEOUT; ha->fcoe_reset_timeout = QLA82XX_ROM_DRV_RESET_ACK_TIMEOUT; } else { @@ -1051,9 +1051,9 @@ qla2xxx_flash_npiv_conf(scsi_qla_host_t *vha) ha->isp_ops->read_optrom(vha, (uint8_t *)&hdr, ha->flt_region_npiv_conf << 2, sizeof(struct qla_npiv_header)); - if (hdr.version == __constant_cpu_to_le16(0xffff)) + if (hdr.version == cpu_to_le16(0xffff)) return; - if (hdr.version != __constant_cpu_to_le16(1)) { + if (hdr.version != cpu_to_le16(1)) { ql_dbg(ql_dbg_user, vha, 0x7090, "Unsupported NPIV-Config " "detected: version=0x%x entries=0x%x checksum=0x%x.\n", @@ -1697,7 +1697,7 @@ qla83xx_select_led_port(struct qla_hw_data *ha) { uint32_t led_select_value = 0; - if (!IS_QLA83XX(ha)) + if (!IS_QLA83XX(ha) && !IS_QLA27XX(ha)) goto out; if (ha->port_no == 0) diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index b749026aa592..75514a15bea0 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -113,6 +113,11 @@ static void qlt_abort_cmd_on_host_reset(struct scsi_qla_host *vha, static void qlt_alloc_qfull_cmd(struct scsi_qla_host *vha, struct atio_from_isp *atio, uint16_t status, int qfull); static void qlt_disable_vha(struct scsi_qla_host *vha); +static void qlt_clear_tgt_db(struct qla_tgt *tgt); +static void qlt_send_notify_ack(struct scsi_qla_host *vha, + struct imm_ntfy_from_isp *ntfy, + uint32_t add_flags, uint16_t resp_code, int resp_code_valid, + uint16_t srr_flags, uint16_t srr_reject_code, uint8_t srr_explan); /* * Global Variables */ @@ -122,6 +127,16 @@ static struct workqueue_struct *qla_tgt_wq; static DEFINE_MUTEX(qla_tgt_mutex); static LIST_HEAD(qla_tgt_glist); +/* This API intentionally takes dest as a parameter, rather than returning + * int value to avoid caller forgetting to issue wmb() after the store */ +void qlt_do_generation_tick(struct scsi_qla_host *vha, int *dest) +{ + scsi_qla_host_t *base_vha = pci_get_drvdata(vha->hw->pdev); + *dest = atomic_inc_return(&base_vha->generation_tick); + /* memory barrier */ + wmb(); +} + /* ha->hardware_lock supposed to be held on entry (to protect tgt->sess_list) */ static struct qla_tgt_sess *qlt_find_sess_by_port_name( struct qla_tgt *tgt, @@ -381,14 +396,73 @@ static void qlt_free_session_done(struct work_struct *work) struct qla_tgt *tgt = sess->tgt; struct scsi_qla_host *vha = sess->vha; struct qla_hw_data *ha = vha->hw; + unsigned long flags; + bool logout_started = false; + fc_port_t fcport; + + ql_dbg(ql_dbg_tgt_mgt, vha, 0xf084, + "%s: se_sess %p / sess %p from port %8phC loop_id %#04x" + " s_id %02x:%02x:%02x logout %d keep %d plogi %d\n", + __func__, sess->se_sess, sess, sess->port_name, sess->loop_id, + sess->s_id.b.domain, sess->s_id.b.area, sess->s_id.b.al_pa, + sess->logout_on_delete, sess->keep_nport_handle, + sess->plogi_ack_needed); BUG_ON(!tgt); + + if (sess->logout_on_delete) { + int rc; + + memset(&fcport, 0, sizeof(fcport)); + fcport.loop_id = sess->loop_id; + fcport.d_id = sess->s_id; + memcpy(fcport.port_name, sess->port_name, WWN_SIZE); + fcport.vha = vha; + fcport.tgt_session = sess; + + rc = qla2x00_post_async_logout_work(vha, &fcport, NULL); + if (rc != QLA_SUCCESS) + ql_log(ql_log_warn, vha, 0xf085, + "Schedule logo failed sess %p rc %d\n", + sess, rc); + else + logout_started = true; + } + /* * Release the target session for FC Nexus from fabric module code. */ if (sess->se_sess != NULL) ha->tgt.tgt_ops->free_session(sess); + if (logout_started) { + bool traced = false; + + while (!ACCESS_ONCE(sess->logout_completed)) { + if (!traced) { + ql_dbg(ql_dbg_tgt_mgt, vha, 0xf086, + "%s: waiting for sess %p logout\n", + __func__, sess); + traced = true; + } + msleep(100); + } + + ql_dbg(ql_dbg_tgt_mgt, vha, 0xf087, + "%s: sess %p logout completed\n", + __func__, sess); + } + + spin_lock_irqsave(&ha->hardware_lock, flags); + + if (sess->plogi_ack_needed) + qlt_send_notify_ack(vha, &sess->tm_iocb, + 0, 0, 0, 0, 0, 0); + + list_del(&sess->sess_list_entry); + + spin_unlock_irqrestore(&ha->hardware_lock, flags); + ql_dbg(ql_dbg_tgt_mgt, vha, 0xf001, "Unregistration of sess %p finished\n", sess); @@ -409,9 +483,9 @@ void qlt_unreg_sess(struct qla_tgt_sess *sess) vha->hw->tgt.tgt_ops->clear_nacl_from_fcport_map(sess); - list_del(&sess->sess_list_entry); - if (sess->deleted) - list_del(&sess->del_list_entry); + if (!list_empty(&sess->del_list_entry)) + list_del_init(&sess->del_list_entry); + sess->deleted = QLA_SESS_DELETION_IN_PROGRESS; INIT_WORK(&sess->free_work, qlt_free_session_done); schedule_work(&sess->free_work); @@ -431,10 +505,10 @@ static int qlt_reset(struct scsi_qla_host *vha, void *iocb, int mcmd) loop_id = le16_to_cpu(n->u.isp24.nport_handle); if (loop_id == 0xFFFF) { -#if 0 /* FIXME: Re-enable Global event handling.. */ /* Global event */ - atomic_inc(&ha->tgt.qla_tgt->tgt_global_resets_count); - qlt_clear_tgt_db(ha->tgt.qla_tgt); + atomic_inc(&vha->vha_tgt.qla_tgt->tgt_global_resets_count); + qlt_clear_tgt_db(vha->vha_tgt.qla_tgt); +#if 0 /* FIXME: do we need to choose a session here? */ if (!list_empty(&ha->tgt.qla_tgt->sess_list)) { sess = list_entry(ha->tgt.qla_tgt->sess_list.next, typeof(*sess), sess_list_entry); @@ -489,27 +563,38 @@ static void qlt_schedule_sess_for_deletion(struct qla_tgt_sess *sess, struct qla_tgt *tgt = sess->tgt; uint32_t dev_loss_tmo = tgt->ha->port_down_retry_count + 5; - if (sess->deleted) - return; + if (sess->deleted) { + /* Upgrade to unconditional deletion in case it was temporary */ + if (immediate && sess->deleted == QLA_SESS_DELETION_PENDING) + list_del(&sess->del_list_entry); + else + return; + } ql_dbg(ql_dbg_tgt, sess->vha, 0xe001, "Scheduling sess %p for deletion\n", sess); - list_add_tail(&sess->del_list_entry, &tgt->del_sess_list); - sess->deleted = 1; - if (immediate) + if (immediate) { dev_loss_tmo = 0; + sess->deleted = QLA_SESS_DELETION_IN_PROGRESS; + list_add(&sess->del_list_entry, &tgt->del_sess_list); + } else { + sess->deleted = QLA_SESS_DELETION_PENDING; + list_add_tail(&sess->del_list_entry, &tgt->del_sess_list); + } sess->expires = jiffies + dev_loss_tmo * HZ; ql_dbg(ql_dbg_tgt, sess->vha, 0xe048, - "qla_target(%d): session for port %8phC (loop ID %d) scheduled for " - "deletion in %u secs (expires: %lu) immed: %d\n", - sess->vha->vp_idx, sess->port_name, sess->loop_id, dev_loss_tmo, - sess->expires, immediate); + "qla_target(%d): session for port %8phC (loop ID %d s_id %02x:%02x:%02x)" + " scheduled for deletion in %u secs (expires: %lu) immed: %d, logout: %d, gen: %#x\n", + sess->vha->vp_idx, sess->port_name, sess->loop_id, + sess->s_id.b.domain, sess->s_id.b.area, sess->s_id.b.al_pa, + dev_loss_tmo, sess->expires, immediate, sess->logout_on_delete, + sess->generation); if (immediate) - schedule_delayed_work(&tgt->sess_del_work, 0); + mod_delayed_work(system_wq, &tgt->sess_del_work, 0); else schedule_delayed_work(&tgt->sess_del_work, sess->expires - jiffies); @@ -578,9 +663,9 @@ out_free_id_list: /* ha->hardware_lock supposed to be held on entry */ static void qlt_undelete_sess(struct qla_tgt_sess *sess) { - BUG_ON(!sess->deleted); + BUG_ON(sess->deleted != QLA_SESS_DELETION_PENDING); - list_del(&sess->del_list_entry); + list_del_init(&sess->del_list_entry); sess->deleted = 0; } @@ -599,7 +684,9 @@ static void qlt_del_sess_work_fn(struct delayed_work *work) del_list_entry); elapsed = jiffies; if (time_after_eq(elapsed, sess->expires)) { - qlt_undelete_sess(sess); + /* No turning back */ + list_del_init(&sess->del_list_entry); + sess->deleted = QLA_SESS_DELETION_IN_PROGRESS; ql_dbg(ql_dbg_tgt_mgt, vha, 0xf004, "Timeout: sess %p about to be deleted\n", @@ -643,6 +730,13 @@ static struct qla_tgt_sess *qlt_create_sess( fcport->d_id.b.al_pa, fcport->d_id.b.area, fcport->loop_id); + /* Cannot undelete at this point */ + if (sess->deleted == QLA_SESS_DELETION_IN_PROGRESS) { + spin_unlock_irqrestore(&ha->hardware_lock, + flags); + return NULL; + } + if (sess->deleted) qlt_undelete_sess(sess); @@ -652,6 +746,9 @@ static struct qla_tgt_sess *qlt_create_sess( if (sess->local && !local) sess->local = 0; + + qlt_do_generation_tick(vha, &sess->generation); + spin_unlock_irqrestore(&ha->hardware_lock, flags); return sess; @@ -673,6 +770,14 @@ static struct qla_tgt_sess *qlt_create_sess( sess->s_id = fcport->d_id; sess->loop_id = fcport->loop_id; sess->local = local; + INIT_LIST_HEAD(&sess->del_list_entry); + + /* Under normal circumstances we want to logout from firmware when + * session eventually ends and release corresponding nport handle. + * In the exception cases (e.g. when new PLOGI is waiting) corresponding + * code will adjust these flags as necessary. */ + sess->logout_on_delete = 1; + sess->keep_nport_handle = 0; ql_dbg(ql_dbg_tgt_mgt, vha, 0xf006, "Adding sess %p to tgt %p via ->check_initiator_node_acl()\n", @@ -705,6 +810,7 @@ static struct qla_tgt_sess *qlt_create_sess( spin_lock_irqsave(&ha->hardware_lock, flags); list_add_tail(&sess->sess_list_entry, &vha->vha_tgt.qla_tgt->sess_list); vha->vha_tgt.qla_tgt->sess_count++; + qlt_do_generation_tick(vha, &sess->generation); spin_unlock_irqrestore(&ha->hardware_lock, flags); ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04b, @@ -718,7 +824,7 @@ static struct qla_tgt_sess *qlt_create_sess( } /* - * Called from drivers/scsi/qla2xxx/qla_init.c:qla2x00_reg_remote_port() + * Called from qla2x00_reg_remote_port() */ void qlt_fc_port_added(struct scsi_qla_host *vha, fc_port_t *fcport) { @@ -750,6 +856,10 @@ void qlt_fc_port_added(struct scsi_qla_host *vha, fc_port_t *fcport) mutex_unlock(&vha->vha_tgt.tgt_mutex); spin_lock_irqsave(&ha->hardware_lock, flags); + } else if (sess->deleted == QLA_SESS_DELETION_IN_PROGRESS) { + /* Point of no return */ + spin_unlock_irqrestore(&ha->hardware_lock, flags); + return; } else { kref_get(&sess->se_sess->sess_kref); @@ -780,27 +890,36 @@ void qlt_fc_port_added(struct scsi_qla_host *vha, fc_port_t *fcport) spin_unlock_irqrestore(&ha->hardware_lock, flags); } -void qlt_fc_port_deleted(struct scsi_qla_host *vha, fc_port_t *fcport) +/* + * max_gen - specifies maximum session generation + * at which this deletion requestion is still valid + */ +void +qlt_fc_port_deleted(struct scsi_qla_host *vha, fc_port_t *fcport, int max_gen) { - struct qla_hw_data *ha = vha->hw; struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; struct qla_tgt_sess *sess; - unsigned long flags; if (!vha->hw->tgt.tgt_ops) return; - if (!tgt || (fcport->port_type != FCT_INITIATOR)) + if (!tgt) return; - spin_lock_irqsave(&ha->hardware_lock, flags); if (tgt->tgt_stop) { - spin_unlock_irqrestore(&ha->hardware_lock, flags); return; } sess = qlt_find_sess_by_port_name(tgt, fcport->port_name); if (!sess) { - spin_unlock_irqrestore(&ha->hardware_lock, flags); + return; + } + + if (max_gen - sess->generation < 0) { + ql_dbg(ql_dbg_tgt_mgt, vha, 0xf092, + "Ignoring stale deletion request for se_sess %p / sess %p" + " for port %8phC, req_gen %d, sess_gen %d\n", + sess->se_sess, sess, sess->port_name, max_gen, + sess->generation); return; } @@ -808,7 +927,6 @@ void qlt_fc_port_deleted(struct scsi_qla_host *vha, fc_port_t *fcport) sess->local = 1; qlt_schedule_sess_for_deletion(sess, false); - spin_unlock_irqrestore(&ha->hardware_lock, flags); } static inline int test_tgt_sess_count(struct qla_tgt *tgt) @@ -1023,7 +1141,7 @@ static void qlt_send_notify_ack(struct scsi_qla_host *vha, nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle; if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) { nack->u.isp24.flags = ntfy->u.isp24.flags & - __constant_cpu_to_le32(NOTIFY24XX_FLAGS_PUREX_IOCB); + cpu_to_le32(NOTIFY24XX_FLAGS_PUREX_IOCB); } nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id; nack->u.isp24.status = ntfy->u.isp24.status; @@ -1081,7 +1199,7 @@ static void qlt_24xx_send_abts_resp(struct scsi_qla_host *vha, resp->sof_type = abts->sof_type; resp->exchange_address = abts->exchange_address; resp->fcp_hdr_le = abts->fcp_hdr_le; - f_ctl = __constant_cpu_to_le32(F_CTL_EXCH_CONTEXT_RESP | + f_ctl = cpu_to_le32(F_CTL_EXCH_CONTEXT_RESP | F_CTL_LAST_SEQ | F_CTL_END_SEQ | F_CTL_SEQ_INITIATIVE); p = (uint8_t *)&f_ctl; @@ -1156,15 +1274,14 @@ static void qlt_24xx_retry_term_exchange(struct scsi_qla_host *vha, ctio->entry_count = 1; ctio->nport_handle = entry->nport_handle; ctio->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK; - ctio->timeout = __constant_cpu_to_le16(QLA_TGT_TIMEOUT); + ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); ctio->vp_index = vha->vp_idx; ctio->initiator_id[0] = entry->fcp_hdr_le.d_id[0]; ctio->initiator_id[1] = entry->fcp_hdr_le.d_id[1]; ctio->initiator_id[2] = entry->fcp_hdr_le.d_id[2]; ctio->exchange_addr = entry->exchange_addr_to_abort; - ctio->u.status1.flags = - __constant_cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1 | - CTIO7_FLAGS_TERMINATE); + ctio->u.status1.flags = cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1 | + CTIO7_FLAGS_TERMINATE); ctio->u.status1.ox_id = cpu_to_le16(entry->fcp_hdr_le.ox_id); /* Memory Barrier */ @@ -1175,6 +1292,70 @@ static void qlt_24xx_retry_term_exchange(struct scsi_qla_host *vha, FCP_TMF_CMPL, true); } +static int abort_cmd_for_tag(struct scsi_qla_host *vha, uint32_t tag) +{ + struct qla_tgt_sess_op *op; + struct qla_tgt_cmd *cmd; + + spin_lock(&vha->cmd_list_lock); + + list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) { + if (tag == op->atio.u.isp24.exchange_addr) { + op->aborted = true; + spin_unlock(&vha->cmd_list_lock); + return 1; + } + } + + list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) { + if (tag == cmd->atio.u.isp24.exchange_addr) { + cmd->state = QLA_TGT_STATE_ABORTED; + spin_unlock(&vha->cmd_list_lock); + return 1; + } + } + + spin_unlock(&vha->cmd_list_lock); + return 0; +} + +/* drop cmds for the given lun + * XXX only looks for cmds on the port through which lun reset was recieved + * XXX does not go through the list of other port (which may have cmds + * for the same lun) + */ +static void abort_cmds_for_lun(struct scsi_qla_host *vha, + uint32_t lun, uint8_t *s_id) +{ + struct qla_tgt_sess_op *op; + struct qla_tgt_cmd *cmd; + uint32_t key; + + key = sid_to_key(s_id); + spin_lock(&vha->cmd_list_lock); + list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) { + uint32_t op_key; + uint32_t op_lun; + + op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id); + op_lun = scsilun_to_int( + (struct scsi_lun *)&op->atio.u.isp24.fcp_cmnd.lun); + if (op_key == key && op_lun == lun) + op->aborted = true; + } + list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) { + uint32_t cmd_key; + uint32_t cmd_lun; + + cmd_key = sid_to_key(cmd->atio.u.isp24.fcp_hdr.s_id); + cmd_lun = scsilun_to_int( + (struct scsi_lun *)&cmd->atio.u.isp24.fcp_cmnd.lun); + if (cmd_key == key && cmd_lun == lun) + cmd->state = QLA_TGT_STATE_ABORTED; + } + spin_unlock(&vha->cmd_list_lock); +} + /* ha->hardware_lock supposed to be held on entry */ static int __qlt_24xx_handle_abts(struct scsi_qla_host *vha, struct abts_recv_from_24xx *abts, struct qla_tgt_sess *sess) @@ -1199,8 +1380,19 @@ static int __qlt_24xx_handle_abts(struct scsi_qla_host *vha, } spin_unlock(&se_sess->sess_cmd_lock); - if (!found_lun) - return -ENOENT; + /* cmd not in LIO lists, look in qla list */ + if (!found_lun) { + if (abort_cmd_for_tag(vha, abts->exchange_addr_to_abort)) { + /* send TASK_ABORT response immediately */ + qlt_24xx_send_abts_resp(vha, abts, FCP_TMF_CMPL, false); + return 0; + } else { + ql_dbg(ql_dbg_tgt_mgt, vha, 0xf081, + "unable to find cmd in driver or LIO for tag 0x%x\n", + abts->exchange_addr_to_abort); + return -ENOENT; + } + } ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00f, "qla_target(%d): task abort (tag=%d)\n", @@ -1284,6 +1476,11 @@ static void qlt_24xx_handle_abts(struct scsi_qla_host *vha, return; } + if (sess->deleted == QLA_SESS_DELETION_IN_PROGRESS) { + qlt_24xx_send_abts_resp(vha, abts, FCP_TMF_REJECTED, false); + return; + } + rc = __qlt_24xx_handle_abts(vha, abts, sess); if (rc != 0) { ql_dbg(ql_dbg_tgt_mgt, vha, 0xf054, @@ -1324,20 +1521,19 @@ static void qlt_24xx_send_task_mgmt_ctio(struct scsi_qla_host *ha, ctio->entry_count = 1; ctio->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK; ctio->nport_handle = mcmd->sess->loop_id; - ctio->timeout = __constant_cpu_to_le16(QLA_TGT_TIMEOUT); + ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); ctio->vp_index = ha->vp_idx; ctio->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; ctio->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; ctio->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; ctio->exchange_addr = atio->u.isp24.exchange_addr; ctio->u.status1.flags = (atio->u.isp24.attr << 9) | - __constant_cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1 | - CTIO7_FLAGS_SEND_STATUS); + cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS); temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id); ctio->u.status1.ox_id = cpu_to_le16(temp); ctio->u.status1.scsi_status = - __constant_cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID); - ctio->u.status1.response_len = __constant_cpu_to_le16(8); + cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID); + ctio->u.status1.response_len = cpu_to_le16(8); ctio->u.status1.sense_data[0] = resp_code; /* Memory Barrier */ @@ -1588,7 +1784,7 @@ static int qlt_24xx_build_ctio_pkt(struct qla_tgt_prm *prm, pkt->handle = h | CTIO_COMPLETION_HANDLE_MARK; pkt->nport_handle = prm->cmd->loop_id; - pkt->timeout = __constant_cpu_to_le16(QLA_TGT_TIMEOUT); + pkt->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); pkt->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; pkt->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; pkt->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; @@ -1726,20 +1922,6 @@ static int qlt_pre_xmit_response(struct qla_tgt_cmd *cmd, struct qla_hw_data *ha = vha->hw; struct se_cmd *se_cmd = &cmd->se_cmd; - if (unlikely(cmd->aborted)) { - ql_dbg(ql_dbg_tgt_mgt, vha, 0xf014, - "qla_target(%d): terminating exchange for aborted cmd=%p (se_cmd=%p, tag=%lld)", - vha->vp_idx, cmd, se_cmd, se_cmd->tag); - - cmd->state = QLA_TGT_STATE_ABORTED; - cmd->cmd_flags |= BIT_6; - - qlt_send_term_exchange(vha, cmd, &cmd->atio, 0); - - /* !! At this point cmd could be already freed !! */ - return QLA_TGT_PRE_XMIT_RESP_CMD_ABORTED; - } - prm->cmd = cmd; prm->tgt = tgt; prm->rq_result = scsi_status; @@ -1903,10 +2085,9 @@ static void qlt_24xx_init_ctio_to_isp(struct ctio7_to_24xx *ctio, { prm->sense_buffer_len = min_t(uint32_t, prm->sense_buffer_len, (uint32_t)sizeof(ctio->u.status1.sense_data)); - ctio->u.status0.flags |= - __constant_cpu_to_le16(CTIO7_FLAGS_SEND_STATUS); + ctio->u.status0.flags |= cpu_to_le16(CTIO7_FLAGS_SEND_STATUS); if (qlt_need_explicit_conf(prm->tgt->ha, prm->cmd, 0)) { - ctio->u.status0.flags |= __constant_cpu_to_le16( + ctio->u.status0.flags |= cpu_to_le16( CTIO7_FLAGS_EXPLICIT_CONFORM | CTIO7_FLAGS_CONFORM_REQ); } @@ -1923,17 +2104,17 @@ static void qlt_24xx_init_ctio_to_isp(struct ctio7_to_24xx *ctio, "non GOOD status\n"); goto skip_explict_conf; } - ctio->u.status1.flags |= __constant_cpu_to_le16( + ctio->u.status1.flags |= cpu_to_le16( CTIO7_FLAGS_EXPLICIT_CONFORM | CTIO7_FLAGS_CONFORM_REQ); } skip_explict_conf: ctio->u.status1.flags &= - ~__constant_cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0); + ~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0); ctio->u.status1.flags |= - __constant_cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1); + cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1); ctio->u.status1.scsi_status |= - __constant_cpu_to_le16(SS_SENSE_LEN_VALID); + cpu_to_le16(SS_SENSE_LEN_VALID); ctio->u.status1.sense_length = cpu_to_le16(prm->sense_buffer_len); for (i = 0; i < prm->sense_buffer_len/4; i++) @@ -1953,9 +2134,9 @@ skip_explict_conf: #endif } else { ctio->u.status1.flags &= - ~__constant_cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0); + ~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0); ctio->u.status1.flags |= - __constant_cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1); + cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1); ctio->u.status1.sense_length = 0; memset(ctio->u.status1.sense_data, 0, sizeof(ctio->u.status1.sense_data)); @@ -2077,7 +2258,6 @@ static inline int qlt_build_ctio_crc2_pkt(struct qla_tgt_prm *prm, scsi_qla_host_t *vha) { uint32_t *cur_dsd; - int sgc; uint32_t transfer_length = 0; uint32_t data_bytes; uint32_t dif_bytes; @@ -2094,7 +2274,6 @@ qlt_build_ctio_crc2_pkt(struct qla_tgt_prm *prm, scsi_qla_host_t *vha) struct atio_from_isp *atio = &prm->cmd->atio; uint16_t t16; - sgc = 0; ha = vha->hw; pkt = (struct ctio_crc2_to_fw *)vha->req->ring_ptr; @@ -2184,7 +2363,7 @@ qlt_build_ctio_crc2_pkt(struct qla_tgt_prm *prm, scsi_qla_host_t *vha) pkt->handle = h | CTIO_COMPLETION_HANDLE_MARK; pkt->nport_handle = prm->cmd->loop_id; - pkt->timeout = __constant_cpu_to_le16(QLA_TGT_TIMEOUT); + pkt->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); pkt->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; pkt->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; pkt->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; @@ -2200,9 +2379,9 @@ qlt_build_ctio_crc2_pkt(struct qla_tgt_prm *prm, scsi_qla_host_t *vha) /* Set transfer direction */ if (cmd->dma_data_direction == DMA_TO_DEVICE) - pkt->flags = __constant_cpu_to_le16(CTIO7_FLAGS_DATA_IN); + pkt->flags = cpu_to_le16(CTIO7_FLAGS_DATA_IN); else if (cmd->dma_data_direction == DMA_FROM_DEVICE) - pkt->flags = __constant_cpu_to_le16(CTIO7_FLAGS_DATA_OUT); + pkt->flags = cpu_to_le16(CTIO7_FLAGS_DATA_OUT); pkt->dseg_count = prm->tot_dsds; @@ -2254,11 +2433,11 @@ qlt_build_ctio_crc2_pkt(struct qla_tgt_prm *prm, scsi_qla_host_t *vha) crc_ctx_pkt->blk_size = cpu_to_le16(cmd->blk_sz); crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts); crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes); - crc_ctx_pkt->guard_seed = __constant_cpu_to_le16(0); + crc_ctx_pkt->guard_seed = cpu_to_le16(0); /* Walks data segments */ - pkt->flags |= __constant_cpu_to_le16(CTIO7_FLAGS_DSD_PTR); + pkt->flags |= cpu_to_le16(CTIO7_FLAGS_DSD_PTR); if (!bundling && prm->prot_seg_cnt) { if (qla24xx_walk_and_build_sglist_no_difb(ha, NULL, cur_dsd, @@ -2301,6 +2480,19 @@ int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type, unsigned long flags = 0; int res; + spin_lock_irqsave(&ha->hardware_lock, flags); + if (cmd->sess && cmd->sess->deleted == QLA_SESS_DELETION_IN_PROGRESS) { + cmd->state = QLA_TGT_STATE_PROCESSED; + if (cmd->sess->logout_completed) + /* no need to terminate. FW already freed exchange. */ + qlt_abort_cmd_on_host_reset(cmd->vha, cmd); + else + qlt_send_term_exchange(vha, cmd, &cmd->atio, 1); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + return 0; + } + spin_unlock_irqrestore(&ha->hardware_lock, flags); + memset(&prm, 0, sizeof(prm)); qlt_check_srr_debug(cmd, &xmit_type); @@ -2313,9 +2505,6 @@ int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type, res = qlt_pre_xmit_response(cmd, &prm, xmit_type, scsi_status, &full_req_cnt); if (unlikely(res != 0)) { - if (res == QLA_TGT_PRE_XMIT_RESP_CMD_ABORTED) - return 0; - return res; } @@ -2345,15 +2534,16 @@ int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type, res = qlt_build_ctio_crc2_pkt(&prm, vha); else res = qlt_24xx_build_ctio_pkt(&prm, vha); - if (unlikely(res != 0)) + if (unlikely(res != 0)) { + vha->req->cnt += full_req_cnt; goto out_unmap_unlock; - + } pkt = (struct ctio7_to_24xx *)prm.pkt; if (qlt_has_data(cmd) && (xmit_type & QLA_TGT_XMIT_DATA)) { pkt->u.status0.flags |= - __constant_cpu_to_le16(CTIO7_FLAGS_DATA_IN | + cpu_to_le16(CTIO7_FLAGS_DATA_IN | CTIO7_FLAGS_STATUS_MODE_0); if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL) @@ -2365,11 +2555,11 @@ int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type, cpu_to_le16(prm.rq_result); pkt->u.status0.residual = cpu_to_le32(prm.residual); - pkt->u.status0.flags |= __constant_cpu_to_le16( + pkt->u.status0.flags |= cpu_to_le16( CTIO7_FLAGS_SEND_STATUS); if (qlt_need_explicit_conf(ha, cmd, 0)) { pkt->u.status0.flags |= - __constant_cpu_to_le16( + cpu_to_le16( CTIO7_FLAGS_EXPLICIT_CONFORM | CTIO7_FLAGS_CONFORM_REQ); } @@ -2397,12 +2587,12 @@ int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type, ctio->entry_count = 1; ctio->entry_type = CTIO_TYPE7; ctio->dseg_count = 0; - ctio->u.status1.flags &= ~__constant_cpu_to_le16( + ctio->u.status1.flags &= ~cpu_to_le16( CTIO7_FLAGS_DATA_IN); /* Real finish is ctio_m1's finish */ pkt->handle |= CTIO_INTERMEDIATE_HANDLE_MARK; - pkt->u.status0.flags |= __constant_cpu_to_le16( + pkt->u.status0.flags |= cpu_to_le16( CTIO7_FLAGS_DONT_RET_CTIO); /* qlt_24xx_init_ctio_to_isp will correct @@ -2461,7 +2651,8 @@ int qlt_rdy_to_xfer(struct qla_tgt_cmd *cmd) spin_lock_irqsave(&ha->hardware_lock, flags); - if (qla2x00_reset_active(vha) || cmd->reset_count != ha->chip_reset) { + if (qla2x00_reset_active(vha) || (cmd->reset_count != ha->chip_reset) || + (cmd->sess && cmd->sess->deleted == QLA_SESS_DELETION_IN_PROGRESS)) { /* * Either a chip reset is active or this request was from * previous life, just abort the processing. @@ -2485,10 +2676,13 @@ int qlt_rdy_to_xfer(struct qla_tgt_cmd *cmd) else res = qlt_24xx_build_ctio_pkt(&prm, vha); - if (unlikely(res != 0)) + if (unlikely(res != 0)) { + vha->req->cnt += prm.req_cnt; goto out_unlock_free_unmap; + } + pkt = (struct ctio7_to_24xx *)prm.pkt; - pkt->u.status0.flags |= __constant_cpu_to_le16(CTIO7_FLAGS_DATA_OUT | + pkt->u.status0.flags |= cpu_to_le16(CTIO7_FLAGS_DATA_OUT | CTIO7_FLAGS_STATUS_MODE_0); if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL) @@ -2563,7 +2757,7 @@ qlt_handle_dif_error(struct scsi_qla_host *vha, struct qla_tgt_cmd *cmd, /* Update protection tag */ if (cmd->prot_sg_cnt) { - uint32_t i, j = 0, k = 0, num_ent; + uint32_t i, k = 0, num_ent; struct scatterlist *sg, *sgl; @@ -2576,7 +2770,6 @@ qlt_handle_dif_error(struct scsi_qla_host *vha, struct qla_tgt_cmd *cmd, k += num_ent; continue; } - j = blocks_done - k - 1; k = blocks_done; break; } @@ -2651,6 +2844,89 @@ out: /* If hardware_lock held on entry, might drop it, then reaquire */ /* This function sends the appropriate CTIO to ISP 2xxx or 24xx */ +static int __qlt_send_term_imm_notif(struct scsi_qla_host *vha, + struct imm_ntfy_from_isp *ntfy) +{ + struct nack_to_isp *nack; + struct qla_hw_data *ha = vha->hw; + request_t *pkt; + int ret = 0; + + ql_dbg(ql_dbg_tgt_tmr, vha, 0xe01c, + "Sending TERM ELS CTIO (ha=%p)\n", ha); + + pkt = (request_t *)qla2x00_alloc_iocbs_ready(vha, NULL); + if (pkt == NULL) { + ql_dbg(ql_dbg_tgt, vha, 0xe080, + "qla_target(%d): %s failed: unable to allocate " + "request packet\n", vha->vp_idx, __func__); + return -ENOMEM; + } + + pkt->entry_type = NOTIFY_ACK_TYPE; + pkt->entry_count = 1; + pkt->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK; + + nack = (struct nack_to_isp *)pkt; + nack->ox_id = ntfy->ox_id; + + nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle; + if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) { + nack->u.isp24.flags = ntfy->u.isp24.flags & + __constant_cpu_to_le32(NOTIFY24XX_FLAGS_PUREX_IOCB); + } + + /* terminate */ + nack->u.isp24.flags |= + __constant_cpu_to_le16(NOTIFY_ACK_FLAGS_TERMINATE); + + nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id; + nack->u.isp24.status = ntfy->u.isp24.status; + nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode; + nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle; + nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address; + nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs; + nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui; + nack->u.isp24.vp_index = ntfy->u.isp24.vp_index; + + qla2x00_start_iocbs(vha, vha->req); + return ret; +} + +static void qlt_send_term_imm_notif(struct scsi_qla_host *vha, + struct imm_ntfy_from_isp *imm, int ha_locked) +{ + unsigned long flags = 0; + int rc; + + if (qlt_issue_marker(vha, ha_locked) < 0) + return; + + if (ha_locked) { + rc = __qlt_send_term_imm_notif(vha, imm); + +#if 0 /* Todo */ + if (rc == -ENOMEM) + qlt_alloc_qfull_cmd(vha, imm, 0, 0); +#endif + goto done; + } + + spin_lock_irqsave(&vha->hw->hardware_lock, flags); + rc = __qlt_send_term_imm_notif(vha, imm); + +#if 0 /* Todo */ + if (rc == -ENOMEM) + qlt_alloc_qfull_cmd(vha, imm, 0, 0); +#endif + +done: + if (!ha_locked) + spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); +} + +/* If hardware_lock held on entry, might drop it, then reaquire */ +/* This function sends the appropriate CTIO to ISP 2xxx or 24xx */ static int __qlt_send_term_exchange(struct scsi_qla_host *vha, struct qla_tgt_cmd *cmd, struct atio_from_isp *atio) @@ -2687,14 +2963,14 @@ static int __qlt_send_term_exchange(struct scsi_qla_host *vha, ctio24 = (struct ctio7_to_24xx *)pkt; ctio24->entry_type = CTIO_TYPE7; ctio24->nport_handle = cmd ? cmd->loop_id : CTIO7_NHANDLE_UNRECOGNIZED; - ctio24->timeout = __constant_cpu_to_le16(QLA_TGT_TIMEOUT); + ctio24->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); ctio24->vp_index = vha->vp_idx; ctio24->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; ctio24->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; ctio24->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; ctio24->exchange_addr = atio->u.isp24.exchange_addr; ctio24->u.status1.flags = (atio->u.isp24.attr << 9) | - __constant_cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1 | + cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_TERMINATE); temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id); ctio24->u.status1.ox_id = cpu_to_le16(temp); @@ -2715,7 +2991,7 @@ static int __qlt_send_term_exchange(struct scsi_qla_host *vha, static void qlt_send_term_exchange(struct scsi_qla_host *vha, struct qla_tgt_cmd *cmd, struct atio_from_isp *atio, int ha_locked) { - unsigned long flags; + unsigned long flags = 0; int rc; if (qlt_issue_marker(vha, ha_locked) < 0) @@ -2731,17 +3007,18 @@ static void qlt_send_term_exchange(struct scsi_qla_host *vha, rc = __qlt_send_term_exchange(vha, cmd, atio); if (rc == -ENOMEM) qlt_alloc_qfull_cmd(vha, atio, 0, 0); - spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); done: if (cmd && ((cmd->state != QLA_TGT_STATE_ABORTED) || !cmd->cmd_sent_to_fw)) { - if (!ha_locked && !in_interrupt()) - msleep(250); /* just in case */ - - qlt_unmap_sg(vha, cmd); + if (cmd->sg_mapped) + qlt_unmap_sg(vha, cmd); vha->hw->tgt.tgt_ops->free_cmd(cmd); } + + if (!ha_locked) + spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); + return; } @@ -2792,6 +3069,24 @@ static void qlt_chk_exch_leak_thresh_hold(struct scsi_qla_host *vha) } +void qlt_abort_cmd(struct qla_tgt_cmd *cmd) +{ + struct qla_tgt *tgt = cmd->tgt; + struct scsi_qla_host *vha = tgt->vha; + struct se_cmd *se_cmd = &cmd->se_cmd; + + ql_dbg(ql_dbg_tgt_mgt, vha, 0xf014, + "qla_target(%d): terminating exchange for aborted cmd=%p " + "(se_cmd=%p, tag=%llu)", vha->vp_idx, cmd, &cmd->se_cmd, + se_cmd->tag); + + cmd->state = QLA_TGT_STATE_ABORTED; + cmd->cmd_flags |= BIT_6; + + qlt_send_term_exchange(vha, cmd, &cmd->atio, 0); +} +EXPORT_SYMBOL(qlt_abort_cmd); + void qlt_free_cmd(struct qla_tgt_cmd *cmd) { struct qla_tgt_sess *sess = cmd->sess; @@ -2915,7 +3210,7 @@ static int qlt_term_ctio_exchange(struct scsi_qla_host *vha, void *ctio, if (ctio != NULL) { struct ctio7_from_24xx *c = (struct ctio7_from_24xx *)ctio; term = !(c->flags & - __constant_cpu_to_le16(OF_TERM_EXCH)); + cpu_to_le16(OF_TERM_EXCH)); } else term = 1; @@ -3015,7 +3310,7 @@ qlt_abort_cmd_on_host_reset(struct scsi_qla_host *vha, struct qla_tgt_cmd *cmd) dump_stack(); } - cmd->cmd_flags |= BIT_12; + cmd->cmd_flags |= BIT_17; ha->tgt.tgt_ops->free_cmd(cmd); } @@ -3063,7 +3358,6 @@ static void qlt_do_ctio_completion(struct scsi_qla_host *vha, uint32_t handle, { struct qla_hw_data *ha = vha->hw; struct se_cmd *se_cmd; - const struct target_core_fabric_ops *tfo; struct qla_tgt_cmd *cmd; if (handle & CTIO_INTERMEDIATE_HANDLE_MARK) { @@ -3081,7 +3375,6 @@ static void qlt_do_ctio_completion(struct scsi_qla_host *vha, uint32_t handle, return; se_cmd = &cmd->se_cmd; - tfo = se_cmd->se_tfo; cmd->cmd_sent_to_fw = 0; qlt_unmap_sg(vha, cmd); @@ -3177,23 +3470,21 @@ static void qlt_do_ctio_completion(struct scsi_qla_host *vha, uint32_t handle, skip_term: if (cmd->state == QLA_TGT_STATE_PROCESSED) { - ; + cmd->cmd_flags |= BIT_12; } else if (cmd->state == QLA_TGT_STATE_NEED_DATA) { - int rx_status = 0; - cmd->state = QLA_TGT_STATE_DATA_IN; - if (unlikely(status != CTIO_SUCCESS)) - rx_status = -EIO; - else + if (status == CTIO_SUCCESS) cmd->write_data_transferred = 1; ha->tgt.tgt_ops->handle_data(cmd); return; } else if (cmd->state == QLA_TGT_STATE_ABORTED) { + cmd->cmd_flags |= BIT_18; ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01e, "Aborted command %p (tag %lld) finished\n", cmd, se_cmd->tag); } else { + cmd->cmd_flags |= BIT_19; ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05c, "qla_target(%d): A command in state (%d) should " "not return a CTIO complete\n", vha->vp_idx, cmd->state); @@ -3205,7 +3496,6 @@ skip_term: dump_stack(); } - ha->tgt.tgt_ops->free_cmd(cmd); } @@ -3263,6 +3553,13 @@ static void __qlt_do_work(struct qla_tgt_cmd *cmd) if (tgt->tgt_stop) goto out_term; + if (cmd->state == QLA_TGT_STATE_ABORTED) { + ql_dbg(ql_dbg_tgt_mgt, vha, 0xf082, + "cmd with tag %u is aborted\n", + cmd->atio.u.isp24.exchange_addr); + goto out_term; + } + cdb = &atio->u.isp24.fcp_cmnd.cdb[0]; cmd->se_cmd.tag = atio->u.isp24.exchange_addr; cmd->unpacked_lun = scsilun_to_int( @@ -3316,6 +3613,12 @@ out_term: static void qlt_do_work(struct work_struct *work) { struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); + scsi_qla_host_t *vha = cmd->vha; + unsigned long flags; + + spin_lock_irqsave(&vha->cmd_list_lock, flags); + list_del(&cmd->cmd_list); + spin_unlock_irqrestore(&vha->cmd_list_lock, flags); __qlt_do_work(cmd); } @@ -3345,6 +3648,11 @@ static struct qla_tgt_cmd *qlt_get_tag(scsi_qla_host_t *vha, cmd->loop_id = sess->loop_id; cmd->conf_compl_supported = sess->conf_compl_supported; + cmd->cmd_flags = 0; + cmd->jiffies_at_alloc = get_jiffies_64(); + + cmd->reset_count = vha->hw->chip_reset; + return cmd; } @@ -3362,14 +3670,25 @@ static void qlt_create_sess_from_atio(struct work_struct *work) unsigned long flags; uint8_t *s_id = op->atio.u.isp24.fcp_hdr.s_id; + spin_lock_irqsave(&vha->cmd_list_lock, flags); + list_del(&op->cmd_list); + spin_unlock_irqrestore(&vha->cmd_list_lock, flags); + + if (op->aborted) { + ql_dbg(ql_dbg_tgt_mgt, vha, 0xf083, + "sess_op with tag %u is aborted\n", + op->atio.u.isp24.exchange_addr); + goto out_term; + } + ql_dbg(ql_dbg_tgt_mgt, vha, 0xf022, - "qla_target(%d): Unable to find wwn login" - " (s_id %x:%x:%x), trying to create it manually\n", - vha->vp_idx, s_id[0], s_id[1], s_id[2]); + "qla_target(%d): Unable to find wwn login" + " (s_id %x:%x:%x), trying to create it manually\n", + vha->vp_idx, s_id[0], s_id[1], s_id[2]); if (op->atio.u.raw.entry_count > 1) { ql_dbg(ql_dbg_tgt_mgt, vha, 0xf023, - "Dropping multy entry atio %p\n", &op->atio); + "Dropping multy entry atio %p\n", &op->atio); goto out_term; } @@ -3434,10 +3753,25 @@ static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha, memcpy(&op->atio, atio, sizeof(*atio)); op->vha = vha; + + spin_lock(&vha->cmd_list_lock); + list_add_tail(&op->cmd_list, &vha->qla_sess_op_cmd_list); + spin_unlock(&vha->cmd_list_lock); + INIT_WORK(&op->work, qlt_create_sess_from_atio); queue_work(qla_tgt_wq, &op->work); return 0; } + + /* Another WWN used to have our s_id. Our PLOGI scheduled its + * session deletion, but it's still in sess_del_work wq */ + if (sess->deleted == QLA_SESS_DELETION_IN_PROGRESS) { + ql_dbg(ql_dbg_io, vha, 0x3061, + "New command while old session %p is being deleted\n", + sess); + return -EFAULT; + } + /* * Do kref_get() before returning + dropping qla_hw_data->hardware_lock. */ @@ -3451,13 +3785,13 @@ static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha, return -ENOMEM; } - cmd->cmd_flags = 0; - cmd->jiffies_at_alloc = get_jiffies_64(); - - cmd->reset_count = vha->hw->chip_reset; - cmd->cmd_in_wq = 1; cmd->cmd_flags |= BIT_0; + + spin_lock(&vha->cmd_list_lock); + list_add_tail(&cmd->cmd_list, &vha->qla_cmd_list); + spin_unlock(&vha->cmd_list_lock); + INIT_WORK(&cmd->work, qlt_do_work); queue_work(qla_tgt_wq, &cmd->work); return 0; @@ -3471,6 +3805,7 @@ static int qlt_issue_task_mgmt(struct qla_tgt_sess *sess, uint32_t lun, struct scsi_qla_host *vha = sess->vha; struct qla_hw_data *ha = vha->hw; struct qla_tgt_mgmt_cmd *mcmd; + struct atio_from_isp *a = (struct atio_from_isp *)iocb; int res; uint8_t tmr_func; @@ -3511,6 +3846,7 @@ static int qlt_issue_task_mgmt(struct qla_tgt_sess *sess, uint32_t lun, ql_dbg(ql_dbg_tgt_tmr, vha, 0x10002, "qla_target(%d): LUN_RESET received\n", sess->vha->vp_idx); tmr_func = TMR_LUN_RESET; + abort_cmds_for_lun(vha, lun, a->u.isp24.fcp_hdr.s_id); break; case QLA_TGT_CLEAR_TS: @@ -3580,12 +3916,11 @@ static int qlt_handle_task_mgmt(struct scsi_qla_host *vha, void *iocb) struct qla_tgt *tgt; struct qla_tgt_sess *sess; uint32_t lun, unpacked_lun; - int lun_size, fn; + int fn; tgt = vha->vha_tgt.qla_tgt; lun = a->u.isp24.fcp_cmnd.lun; - lun_size = sizeof(a->u.isp24.fcp_cmnd.lun); fn = a->u.isp24.fcp_cmnd.task_mgmt_flags; sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, a->u.isp24.fcp_hdr.s_id); @@ -3599,6 +3934,9 @@ static int qlt_handle_task_mgmt(struct scsi_qla_host *vha, void *iocb) sizeof(struct atio_from_isp)); } + if (sess->deleted == QLA_SESS_DELETION_IN_PROGRESS) + return -EFAULT; + return qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0); } @@ -3664,22 +4002,280 @@ static int qlt_abort_task(struct scsi_qla_host *vha, return __qlt_abort_task(vha, iocb, sess); } +void qlt_logo_completion_handler(fc_port_t *fcport, int rc) +{ + if (fcport->tgt_session) { + if (rc != MBS_COMMAND_COMPLETE) { + ql_dbg(ql_dbg_tgt_mgt, fcport->vha, 0xf093, + "%s: se_sess %p / sess %p from" + " port %8phC loop_id %#04x s_id %02x:%02x:%02x" + " LOGO failed: %#x\n", + __func__, + fcport->tgt_session->se_sess, + fcport->tgt_session, + fcport->port_name, fcport->loop_id, + fcport->d_id.b.domain, fcport->d_id.b.area, + fcport->d_id.b.al_pa, rc); + } + + fcport->tgt_session->logout_completed = 1; + } +} + +static void qlt_swap_imm_ntfy_iocb(struct imm_ntfy_from_isp *a, + struct imm_ntfy_from_isp *b) +{ + struct imm_ntfy_from_isp tmp; + memcpy(&tmp, a, sizeof(struct imm_ntfy_from_isp)); + memcpy(a, b, sizeof(struct imm_ntfy_from_isp)); + memcpy(b, &tmp, sizeof(struct imm_ntfy_from_isp)); +} + +/* +* ha->hardware_lock supposed to be held on entry (to protect tgt->sess_list) +* +* Schedules sessions with matching port_id/loop_id but different wwn for +* deletion. Returns existing session with matching wwn if present. +* Null otherwise. +*/ +static struct qla_tgt_sess * +qlt_find_sess_invalidate_other(struct qla_tgt *tgt, uint64_t wwn, + port_id_t port_id, uint16_t loop_id) +{ + struct qla_tgt_sess *sess = NULL, *other_sess; + uint64_t other_wwn; + + list_for_each_entry(other_sess, &tgt->sess_list, sess_list_entry) { + + other_wwn = wwn_to_u64(other_sess->port_name); + + if (wwn == other_wwn) { + WARN_ON(sess); + sess = other_sess; + continue; + } + + /* find other sess with nport_id collision */ + if (port_id.b24 == other_sess->s_id.b24) { + if (loop_id != other_sess->loop_id) { + ql_dbg(ql_dbg_tgt_tmr, tgt->vha, 0x1000c, + "Invalidating sess %p loop_id %d wwn %llx.\n", + other_sess, other_sess->loop_id, other_wwn); + + /* + * logout_on_delete is set by default, but another + * session that has the same s_id/loop_id combo + * might have cleared it when requested this session + * deletion, so don't touch it + */ + qlt_schedule_sess_for_deletion(other_sess, true); + } else { + /* + * Another wwn used to have our s_id/loop_id + * combo - kill the session, but don't log out + */ + sess->logout_on_delete = 0; + qlt_schedule_sess_for_deletion(other_sess, + true); + } + continue; + } + + /* find other sess with nport handle collision */ + if (loop_id == other_sess->loop_id) { + ql_dbg(ql_dbg_tgt_tmr, tgt->vha, 0x1000d, + "Invalidating sess %p loop_id %d wwn %llx.\n", + other_sess, other_sess->loop_id, other_wwn); + + /* Same loop_id but different s_id + * Ok to kill and logout */ + qlt_schedule_sess_for_deletion(other_sess, true); + } + } + + return sess; +} + +/* Abort any commands for this s_id waiting on qla_tgt_wq workqueue */ +static int abort_cmds_for_s_id(struct scsi_qla_host *vha, port_id_t *s_id) +{ + struct qla_tgt_sess_op *op; + struct qla_tgt_cmd *cmd; + uint32_t key; + int count = 0; + + key = (((u32)s_id->b.domain << 16) | + ((u32)s_id->b.area << 8) | + ((u32)s_id->b.al_pa)); + + spin_lock(&vha->cmd_list_lock); + list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) { + uint32_t op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id); + if (op_key == key) { + op->aborted = true; + count++; + } + } + list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) { + uint32_t cmd_key = sid_to_key(cmd->atio.u.isp24.fcp_hdr.s_id); + if (cmd_key == key) { + cmd->state = QLA_TGT_STATE_ABORTED; + count++; + } + } + spin_unlock(&vha->cmd_list_lock); + + return count; +} + /* * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire */ static int qlt_24xx_handle_els(struct scsi_qla_host *vha, struct imm_ntfy_from_isp *iocb) { + struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; + struct qla_hw_data *ha = vha->hw; + struct qla_tgt_sess *sess = NULL; + uint64_t wwn; + port_id_t port_id; + uint16_t loop_id; + uint16_t wd3_lo; int res = 0; + wwn = wwn_to_u64(iocb->u.isp24.port_name); + + port_id.b.domain = iocb->u.isp24.port_id[2]; + port_id.b.area = iocb->u.isp24.port_id[1]; + port_id.b.al_pa = iocb->u.isp24.port_id[0]; + port_id.b.rsvd_1 = 0; + + loop_id = le16_to_cpu(iocb->u.isp24.nport_handle); + ql_dbg(ql_dbg_tgt_mgt, vha, 0xf026, "qla_target(%d): Port ID: 0x%3phC ELS opcode: 0x%02x\n", vha->vp_idx, iocb->u.isp24.port_id, iocb->u.isp24.status_subcode); + /* res = 1 means ack at the end of thread + * res = 0 means ack async/later. + */ switch (iocb->u.isp24.status_subcode) { case ELS_PLOGI: - case ELS_FLOGI: + + /* Mark all stale commands in qla_tgt_wq for deletion */ + abort_cmds_for_s_id(vha, &port_id); + + if (wwn) + sess = qlt_find_sess_invalidate_other(tgt, wwn, + port_id, loop_id); + + if (!sess || IS_SW_RESV_ADDR(sess->s_id)) { + res = 1; + break; + } + + if (sess->plogi_ack_needed) { + /* + * Initiator sent another PLOGI before last PLOGI could + * finish. Swap plogi iocbs and terminate old one + * without acking, new one will get acked when session + * deletion completes. + */ + ql_log(ql_log_warn, sess->vha, 0xf094, + "sess %p received double plogi.\n", sess); + + qlt_swap_imm_ntfy_iocb(iocb, &sess->tm_iocb); + + qlt_send_term_imm_notif(vha, iocb, 1); + + res = 0; + break; + } + + res = 0; + + /* + * Save immediate Notif IOCB for Ack when sess is done + * and being deleted. + */ + memcpy(&sess->tm_iocb, iocb, sizeof(sess->tm_iocb)); + sess->plogi_ack_needed = 1; + + /* + * Under normal circumstances we want to release nport handle + * during LOGO process to avoid nport handle leaks inside FW. + * The exception is when LOGO is done while another PLOGI with + * the same nport handle is waiting as might be the case here. + * Note: there is always a possibily of a race where session + * deletion has already started for other reasons (e.g. ACL + * removal) and now PLOGI arrives: + * 1. if PLOGI arrived in FW after nport handle has been freed, + * FW must have assigned this PLOGI a new/same handle and we + * can proceed ACK'ing it as usual when session deletion + * completes. + * 2. if PLOGI arrived in FW before LOGO with LCF_FREE_NPORT + * bit reached it, the handle has now been released. We'll + * get an error when we ACK this PLOGI. Nothing will be sent + * back to initiator. Initiator should eventually retry + * PLOGI and situation will correct itself. + */ + sess->keep_nport_handle = ((sess->loop_id == loop_id) && + (sess->s_id.b24 == port_id.b24)); + qlt_schedule_sess_for_deletion(sess, true); + break; + case ELS_PRLI: + wd3_lo = le16_to_cpu(iocb->u.isp24.u.prli.wd3_lo); + + if (wwn) + sess = qlt_find_sess_invalidate_other(tgt, wwn, port_id, + loop_id); + + if (sess != NULL) { + if (sess->deleted) { + /* + * Impatient initiator sent PRLI before last + * PLOGI could finish. Will force him to re-try, + * while last one finishes. + */ + ql_log(ql_log_warn, sess->vha, 0xf095, + "sess %p PRLI received, before plogi ack.\n", + sess); + qlt_send_term_imm_notif(vha, iocb, 1); + res = 0; + break; + } + + /* + * This shouldn't happen under normal circumstances, + * since we have deleted the old session during PLOGI + */ + ql_dbg(ql_dbg_tgt_mgt, vha, 0xf096, + "PRLI (loop_id %#04x) for existing sess %p (loop_id %#04x)\n", + sess->loop_id, sess, iocb->u.isp24.nport_handle); + + sess->local = 0; + sess->loop_id = loop_id; + sess->s_id = port_id; + + if (wd3_lo & BIT_7) + sess->conf_compl_supported = 1; + + } + res = 1; /* send notify ack */ + + /* Make session global (not used in fabric mode) */ + if (ha->current_topology != ISP_CFG_F) { + set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); + set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); + qla2xxx_wake_dpc(vha); + } else { + /* todo: else - create sess here. */ + res = 1; /* send notify ack */ + } + + break; + case ELS_LOGO: case ELS_PRLO: res = qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS); @@ -3697,6 +4293,7 @@ static int qlt_24xx_handle_els(struct scsi_qla_host *vha, break; } + case ELS_FLOGI: /* should never happen */ default: ql_dbg(ql_dbg_tgt_mgt, vha, 0xf061, "qla_target(%d): Unsupported ELS command %x " @@ -3968,16 +4565,20 @@ static void qlt_reject_free_srr_imm(struct scsi_qla_host *vha, struct qla_hw_data *ha = vha->hw; unsigned long flags = 0; +#ifndef __CHECKER__ if (!ha_locked) spin_lock_irqsave(&ha->hardware_lock, flags); +#endif qlt_send_notify_ack(vha, (void *)&imm->imm_ntfy, 0, 0, 0, NOTIFY_ACK_SRR_FLAGS_REJECT, NOTIFY_ACK_SRR_REJECT_REASON_UNABLE_TO_PERFORM, NOTIFY_ACK_SRR_FLAGS_REJECT_EXPL_NO_EXPL); +#ifndef __CHECKER__ if (!ha_locked) spin_unlock_irqrestore(&ha->hardware_lock, flags); +#endif kfree(imm); } @@ -4321,14 +4922,14 @@ static int __qlt_send_busy(struct scsi_qla_host *vha, ctio24 = (struct ctio7_to_24xx *)pkt; ctio24->entry_type = CTIO_TYPE7; ctio24->nport_handle = sess->loop_id; - ctio24->timeout = __constant_cpu_to_le16(QLA_TGT_TIMEOUT); + ctio24->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); ctio24->vp_index = vha->vp_idx; ctio24->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; ctio24->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; ctio24->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; ctio24->exchange_addr = atio->u.isp24.exchange_addr; ctio24->u.status1.flags = (atio->u.isp24.attr << 9) | - __constant_cpu_to_le16( + cpu_to_le16( CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS | CTIO7_FLAGS_DONT_RET_CTIO); /* @@ -4656,7 +5257,7 @@ static void qlt_response_pkt(struct scsi_qla_host *vha, response_t *pkt) struct atio_from_isp *atio = (struct atio_from_isp *)pkt; int rc; if (atio->u.isp2x.status != - __constant_cpu_to_le16(ATIO_CDB_VALID)) { + cpu_to_le16(ATIO_CDB_VALID)) { ql_dbg(ql_dbg_tgt, vha, 0xe05e, "qla_target(%d): ATIO with error " "status %x received\n", vha->vp_idx, @@ -4730,7 +5331,7 @@ static void qlt_response_pkt(struct scsi_qla_host *vha, response_t *pkt) le16_to_cpu(entry->u.isp2x.status)); tgt->notify_ack_expected--; if (entry->u.isp2x.status != - __constant_cpu_to_le16(NOTIFY_ACK_SUCCESS)) { + cpu_to_le16(NOTIFY_ACK_SUCCESS)) { ql_dbg(ql_dbg_tgt, vha, 0xe061, "qla_target(%d): NOTIFY_ACK " "failed %x\n", vha->vp_idx, @@ -5012,6 +5613,11 @@ static void qlt_abort_work(struct qla_tgt *tgt, if (!sess) goto out_term; } else { + if (sess->deleted == QLA_SESS_DELETION_IN_PROGRESS) { + sess = NULL; + goto out_term; + } + kref_get(&sess->se_sess->sess_kref); } @@ -5044,7 +5650,7 @@ static void qlt_tmr_work(struct qla_tgt *tgt, uint8_t *s_id = NULL; /* to hide compiler warnings */ int rc; uint32_t lun, unpacked_lun; - int lun_size, fn; + int fn; void *iocb; spin_lock_irqsave(&ha->hardware_lock, flags); @@ -5066,12 +5672,16 @@ static void qlt_tmr_work(struct qla_tgt *tgt, if (!sess) goto out_term; } else { + if (sess->deleted == QLA_SESS_DELETION_IN_PROGRESS) { + sess = NULL; + goto out_term; + } + kref_get(&sess->se_sess->sess_kref); } iocb = a; lun = a->u.isp24.fcp_cmnd.lun; - lun_size = sizeof(lun); fn = a->u.isp24.fcp_cmnd.task_mgmt_flags; unpacked_lun = scsilun_to_int((struct scsi_lun *)&lun); @@ -5552,6 +6162,7 @@ qlt_24xx_process_atio_queue(struct scsi_qla_host *vha) /* Adjust ring index */ WRT_REG_DWORD(ISP_ATIO_Q_OUT(vha), ha->tgt.atio_ring_index); + RD_REG_DWORD_RELAXED(ISP_ATIO_Q_OUT(vha)); } void @@ -5594,19 +6205,19 @@ qlt_24xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_24xx *nv) ha->tgt.saved_set = 1; } - nv->exchange_count = __constant_cpu_to_le16(0xFFFF); + nv->exchange_count = cpu_to_le16(0xFFFF); /* Enable target mode */ - nv->firmware_options_1 |= __constant_cpu_to_le32(BIT_4); + nv->firmware_options_1 |= cpu_to_le32(BIT_4); /* Disable ini mode, if requested */ if (!qla_ini_mode_enabled(vha)) - nv->firmware_options_1 |= __constant_cpu_to_le32(BIT_5); + nv->firmware_options_1 |= cpu_to_le32(BIT_5); /* Disable Full Login after LIP */ - nv->firmware_options_1 &= __constant_cpu_to_le32(~BIT_13); + nv->firmware_options_1 &= cpu_to_le32(~BIT_13); /* Enable initial LIP */ - nv->firmware_options_1 &= __constant_cpu_to_le32(~BIT_9); + nv->firmware_options_1 &= cpu_to_le32(~BIT_9); if (ql2xtgt_tape_enable) /* Enable FC Tape support */ nv->firmware_options_2 |= cpu_to_le32(BIT_12); @@ -5615,9 +6226,9 @@ qlt_24xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_24xx *nv) nv->firmware_options_2 &= cpu_to_le32(~BIT_12); /* Disable Full Login after LIP */ - nv->host_p &= __constant_cpu_to_le32(~BIT_10); + nv->host_p &= cpu_to_le32(~BIT_10); /* Enable target PRLI control */ - nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_14); + nv->firmware_options_2 |= cpu_to_le32(BIT_14); } else { if (ha->tgt.saved_set) { nv->exchange_count = ha->tgt.saved_exchange_count; @@ -5639,12 +6250,12 @@ qlt_24xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_24xx *nv) fc_host_supported_classes(vha->host) = FC_COS_CLASS2 | FC_COS_CLASS3; - nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_8); + nv->firmware_options_2 |= cpu_to_le32(BIT_8); } else { if (vha->flags.init_done) fc_host_supported_classes(vha->host) = FC_COS_CLASS3; - nv->firmware_options_2 &= ~__constant_cpu_to_le32(BIT_8); + nv->firmware_options_2 &= ~cpu_to_le32(BIT_8); } } @@ -5656,7 +6267,7 @@ qlt_24xx_config_nvram_stage2(struct scsi_qla_host *vha, if (ha->tgt.node_name_set) { memcpy(icb->node_name, ha->tgt.tgt_node_name, WWN_SIZE); - icb->firmware_options_1 |= __constant_cpu_to_le32(BIT_14); + icb->firmware_options_1 |= cpu_to_le32(BIT_14); } } @@ -5681,20 +6292,19 @@ qlt_81xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_81xx *nv) ha->tgt.saved_set = 1; } - nv->exchange_count = __constant_cpu_to_le16(0xFFFF); + nv->exchange_count = cpu_to_le16(0xFFFF); /* Enable target mode */ - nv->firmware_options_1 |= __constant_cpu_to_le32(BIT_4); + nv->firmware_options_1 |= cpu_to_le32(BIT_4); /* Disable ini mode, if requested */ if (!qla_ini_mode_enabled(vha)) - nv->firmware_options_1 |= - __constant_cpu_to_le32(BIT_5); + nv->firmware_options_1 |= cpu_to_le32(BIT_5); /* Disable Full Login after LIP */ - nv->firmware_options_1 &= __constant_cpu_to_le32(~BIT_13); + nv->firmware_options_1 &= cpu_to_le32(~BIT_13); /* Enable initial LIP */ - nv->firmware_options_1 &= __constant_cpu_to_le32(~BIT_9); + nv->firmware_options_1 &= cpu_to_le32(~BIT_9); if (ql2xtgt_tape_enable) /* Enable FC tape support */ nv->firmware_options_2 |= cpu_to_le32(BIT_12); @@ -5703,9 +6313,9 @@ qlt_81xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_81xx *nv) nv->firmware_options_2 &= cpu_to_le32(~BIT_12); /* Disable Full Login after LIP */ - nv->host_p &= __constant_cpu_to_le32(~BIT_10); + nv->host_p &= cpu_to_le32(~BIT_10); /* Enable target PRLI control */ - nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_14); + nv->firmware_options_2 |= cpu_to_le32(BIT_14); } else { if (ha->tgt.saved_set) { nv->exchange_count = ha->tgt.saved_exchange_count; @@ -5727,12 +6337,12 @@ qlt_81xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_81xx *nv) fc_host_supported_classes(vha->host) = FC_COS_CLASS2 | FC_COS_CLASS3; - nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_8); + nv->firmware_options_2 |= cpu_to_le32(BIT_8); } else { if (vha->flags.init_done) fc_host_supported_classes(vha->host) = FC_COS_CLASS3; - nv->firmware_options_2 &= ~__constant_cpu_to_le32(BIT_8); + nv->firmware_options_2 &= ~cpu_to_le32(BIT_8); } } @@ -5747,7 +6357,7 @@ qlt_81xx_config_nvram_stage2(struct scsi_qla_host *vha, if (ha->tgt.node_name_set) { memcpy(icb->node_name, ha->tgt.tgt_node_name, WWN_SIZE); - icb->firmware_options_1 |= __constant_cpu_to_le32(BIT_14); + icb->firmware_options_1 |= cpu_to_le32(BIT_14); } } @@ -5793,7 +6403,7 @@ qlt_probe_one_stage1(struct scsi_qla_host *base_vha, struct qla_hw_data *ha) if (!QLA_TGT_MODE_ENABLED()) return; - if (ha->mqenable || IS_QLA83XX(ha)) { + if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha)) { ISP_ATIO_Q_IN(base_vha) = &ha->mqiobase->isp25mq.atio_q_in; ISP_ATIO_Q_OUT(base_vha) = &ha->mqiobase->isp25mq.atio_q_out; } else { diff --git a/drivers/scsi/qla2xxx/qla_target.h b/drivers/scsi/qla2xxx/qla_target.h index 985d76dd706b..bca584ae45b7 100644 --- a/drivers/scsi/qla2xxx/qla_target.h +++ b/drivers/scsi/qla2xxx/qla_target.h @@ -167,7 +167,24 @@ struct imm_ntfy_from_isp { uint32_t srr_rel_offs; uint16_t srr_ui; uint16_t srr_ox_id; - uint8_t reserved_4[19]; + union { + struct { + uint8_t node_name[8]; + } plogi; /* PLOGI/ADISC/PDISC */ + struct { + /* PRLI word 3 bit 0-15 */ + uint16_t wd3_lo; + uint8_t resv0[6]; + } prli; + struct { + uint8_t port_id[3]; + uint8_t resv1; + uint16_t nport_handle; + uint16_t resv2; + } req_els; + } u; + uint8_t port_name[8]; + uint8_t resv3[3]; uint8_t vp_index; uint32_t reserved_5; uint8_t port_id[3]; @@ -234,6 +251,7 @@ struct nack_to_isp { uint8_t reserved[2]; uint16_t ox_id; } __packed; +#define NOTIFY_ACK_FLAGS_TERMINATE BIT_3 #define NOTIFY_ACK_SRR_FLAGS_ACCEPT 0 #define NOTIFY_ACK_SRR_FLAGS_REJECT 1 @@ -790,13 +808,6 @@ int qla2x00_wait_for_hba_online(struct scsi_qla_host *); #define FC_TM_REJECT 4 #define FC_TM_FAILED 5 -/* - * Error code of qlt_pre_xmit_response() meaning that cmd's exchange was - * terminated, so no more actions is needed and success should be returned - * to target. - */ -#define QLA_TGT_PRE_XMIT_RESP_CMD_ABORTED 0x1717 - #if (BITS_PER_LONG > 32) || defined(CONFIG_HIGHMEM64G) #define pci_dma_lo32(a) (a & 0xffffffff) #define pci_dma_hi32(a) ((((a) >> 16)>>16) & 0xffffffff) @@ -874,6 +885,15 @@ struct qla_tgt_sess_op { struct scsi_qla_host *vha; struct atio_from_isp atio; struct work_struct work; + struct list_head cmd_list; + bool aborted; +}; + +enum qla_sess_deletion { + QLA_SESS_DELETION_NONE = 0, + QLA_SESS_DELETION_PENDING = 1, /* hopefully we can get rid of + * this one */ + QLA_SESS_DELETION_IN_PROGRESS = 2, }; /* @@ -884,8 +904,15 @@ struct qla_tgt_sess { port_id_t s_id; unsigned int conf_compl_supported:1; - unsigned int deleted:1; + unsigned int deleted:2; unsigned int local:1; + unsigned int logout_on_delete:1; + unsigned int plogi_ack_needed:1; + unsigned int keep_nport_handle:1; + + unsigned char logout_completed; + + int generation; struct se_session *se_sess; struct scsi_qla_host *vha; @@ -897,6 +924,10 @@ struct qla_tgt_sess { uint8_t port_name[WWN_SIZE]; struct work_struct free_work; + + union { + struct imm_ntfy_from_isp tm_iocb; + }; }; struct qla_tgt_cmd { @@ -912,7 +943,6 @@ struct qla_tgt_cmd { unsigned int conf_compl_supported:1; unsigned int sg_mapped:1; unsigned int free_sg:1; - unsigned int aborted:1; /* Needed in case of SRR */ unsigned int write_data_transferred:1; unsigned int ctx_dsd_alloced:1; unsigned int q_full:1; @@ -961,6 +991,9 @@ struct qla_tgt_cmd { * BIT_14 - Back end data received/sent. * BIT_15 - SRR prepare ctio * BIT_16 - complete free + * BIT_17 - flush - qlt_abort_cmd_on_host_reset + * BIT_18 - completion w/abort status + * BIT_19 - completion w/unknown status */ uint32_t cmd_flags; }; @@ -1026,6 +1059,10 @@ struct qla_tgt_srr_ctio { struct qla_tgt_cmd *cmd; }; +/* Check for Switch reserved address */ +#define IS_SW_RESV_ADDR(_s_id) \ + ((_s_id.b.domain == 0xff) && (_s_id.b.area == 0xfc)) + #define QLA_TGT_XMIT_DATA 1 #define QLA_TGT_XMIT_STATUS 2 #define QLA_TGT_XMIT_ALL (QLA_TGT_XMIT_STATUS|QLA_TGT_XMIT_DATA) @@ -1043,7 +1080,7 @@ extern int qlt_lport_register(void *, u64, u64, u64, extern void qlt_lport_deregister(struct scsi_qla_host *); extern void qlt_unreg_sess(struct qla_tgt_sess *); extern void qlt_fc_port_added(struct scsi_qla_host *, fc_port_t *); -extern void qlt_fc_port_deleted(struct scsi_qla_host *, fc_port_t *); +extern void qlt_fc_port_deleted(struct scsi_qla_host *, fc_port_t *, int); extern int __init qlt_init(void); extern void qlt_exit(void); extern void qlt_update_vp_map(struct scsi_qla_host *, int); @@ -1073,12 +1110,23 @@ static inline void qla_reverse_ini_mode(struct scsi_qla_host *ha) ha->host->active_mode |= MODE_INITIATOR; } +static inline uint32_t sid_to_key(const uint8_t *s_id) +{ + uint32_t key; + + key = (((unsigned long)s_id[0] << 16) | + ((unsigned long)s_id[1] << 8) | + (unsigned long)s_id[2]); + return key; +} + /* * Exported symbols from qla_target.c LLD logic used by qla2xxx code.. */ extern void qlt_response_pkt_all_vps(struct scsi_qla_host *, response_t *); extern int qlt_rdy_to_xfer(struct qla_tgt_cmd *); extern int qlt_xmit_response(struct qla_tgt_cmd *, int, uint8_t); +extern void qlt_abort_cmd(struct qla_tgt_cmd *); extern void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *); extern void qlt_free_mcmd(struct qla_tgt_mgmt_cmd *); extern void qlt_free_cmd(struct qla_tgt_cmd *cmd); @@ -1109,5 +1157,7 @@ extern void qlt_stop_phase2(struct qla_tgt *); extern irqreturn_t qla83xx_msix_atio_q(int, void *); extern void qlt_83xx_iospace_config(struct qla_hw_data *); extern int qlt_free_qfull_cmds(struct scsi_qla_host *); +extern void qlt_logo_completion_handler(fc_port_t *, int); +extern void qlt_do_generation_tick(struct scsi_qla_host *, int *); #endif /* __QLA_TARGET_H */ diff --git a/drivers/scsi/qla2xxx/qla_tmpl.c b/drivers/scsi/qla2xxx/qla_tmpl.c index 962cb89fe0ae..ddbe2e7ac14d 100644 --- a/drivers/scsi/qla2xxx/qla_tmpl.c +++ b/drivers/scsi/qla2xxx/qla_tmpl.c @@ -137,39 +137,39 @@ qla27xx_insertbuf(void *mem, ulong size, void *buf, ulong *len) } static inline void -qla27xx_read8(void *window, void *buf, ulong *len) +qla27xx_read8(void __iomem *window, void *buf, ulong *len) { uint8_t value = ~0; if (buf) { - value = RD_REG_BYTE((__iomem void *)window); + value = RD_REG_BYTE(window); } qla27xx_insert32(value, buf, len); } static inline void -qla27xx_read16(void *window, void *buf, ulong *len) +qla27xx_read16(void __iomem *window, void *buf, ulong *len) { uint16_t value = ~0; if (buf) { - value = RD_REG_WORD((__iomem void *)window); + value = RD_REG_WORD(window); } qla27xx_insert32(value, buf, len); } static inline void -qla27xx_read32(void *window, void *buf, ulong *len) +qla27xx_read32(void __iomem *window, void *buf, ulong *len) { uint32_t value = ~0; if (buf) { - value = RD_REG_DWORD((__iomem void *)window); + value = RD_REG_DWORD(window); } qla27xx_insert32(value, buf, len); } -static inline void (*qla27xx_read_vector(uint width))(void *, void *, ulong *) +static inline void (*qla27xx_read_vector(uint width))(void __iomem*, void *, ulong *) { return (width == 1) ? qla27xx_read8 : @@ -181,7 +181,7 @@ static inline void qla27xx_read_reg(__iomem struct device_reg_24xx *reg, uint offset, void *buf, ulong *len) { - void *window = (void *)reg + offset; + void __iomem *window = (void __iomem *)reg + offset; qla27xx_read32(window, buf, len); } @@ -202,8 +202,8 @@ qla27xx_read_window(__iomem struct device_reg_24xx *reg, uint32_t addr, uint offset, uint count, uint width, void *buf, ulong *len) { - void *window = (void *)reg + offset; - void (*readn)(void *, void *, ulong *) = qla27xx_read_vector(width); + void __iomem *window = (void __iomem *)reg + offset; + void (*readn)(void __iomem*, void *, ulong *) = qla27xx_read_vector(width); qla27xx_write_reg(reg, IOBASE_ADDR, addr, buf); while (count--) { @@ -805,9 +805,8 @@ static void qla27xx_driver_info(struct qla27xx_fwdt_template *tmp) { uint8_t v[] = { 0, 0, 0, 0, 0, 0 }; - int rval = 0; - rval = sscanf(qla2x00_version_str, "%hhu.%hhu.%hhu.%hhu.%hhu.%hhu", + sscanf(qla2x00_version_str, "%hhu.%hhu.%hhu.%hhu.%hhu.%hhu", v+0, v+1, v+2, v+3, v+4, v+5); tmp->driver_info[0] = v[3] << 24 | v[2] << 16 | v[1] << 8 | v[0]; @@ -940,8 +939,10 @@ qla27xx_fwdump(scsi_qla_host_t *vha, int hardware_locked) { ulong flags = 0; +#ifndef __CHECKER__ if (!hardware_locked) spin_lock_irqsave(&vha->hw->hardware_lock, flags); +#endif if (!vha->hw->fw_dump) ql_log(ql_log_warn, vha, 0xd01e, "fwdump buffer missing.\n"); @@ -954,6 +955,8 @@ qla27xx_fwdump(scsi_qla_host_t *vha, int hardware_locked) else qla27xx_execute_fwdt_template(vha); +#ifndef __CHECKER__ if (!hardware_locked) spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); +#endif } diff --git a/drivers/scsi/qla2xxx/qla_version.h b/drivers/scsi/qla2xxx/qla_version.h index 2ed9ab90a455..6d31faa8c57b 100644 --- a/drivers/scsi/qla2xxx/qla_version.h +++ b/drivers/scsi/qla2xxx/qla_version.h @@ -7,7 +7,7 @@ /* * Driver version */ -#define QLA2XXX_VERSION "8.07.00.18-k" +#define QLA2XXX_VERSION "8.07.00.26-k" #define QLA_DRIVER_MAJOR_VER 8 #define QLA_DRIVER_MINOR_VER 7 diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c index edeb3aefa6fe..ac65cb7b4886 100644 --- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c +++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c @@ -374,7 +374,7 @@ static int tcm_qla2xxx_write_pending(struct se_cmd *se_cmd) { struct qla_tgt_cmd *cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); - + cmd->cmd_flags |= BIT_3; cmd->bufflen = se_cmd->data_length; cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); @@ -405,7 +405,7 @@ static int tcm_qla2xxx_write_pending_status(struct se_cmd *se_cmd) se_cmd->t_state == TRANSPORT_COMPLETE_QF_WP) { spin_unlock_irqrestore(&se_cmd->t_state_lock, flags); wait_for_completion_timeout(&se_cmd->t_transport_stop_comp, - 3000); + 3 * HZ); return 0; } spin_unlock_irqrestore(&se_cmd->t_state_lock, flags); @@ -420,6 +420,12 @@ static void tcm_qla2xxx_set_default_node_attrs(struct se_node_acl *nacl) static int tcm_qla2xxx_get_cmd_state(struct se_cmd *se_cmd) { + if (!(se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) { + struct qla_tgt_cmd *cmd = container_of(se_cmd, + struct qla_tgt_cmd, se_cmd); + return cmd->state; + } + return 0; } @@ -541,12 +547,10 @@ static int tcm_qla2xxx_queue_data_in(struct se_cmd *se_cmd) cmd->cmd_flags |= BIT_4; cmd->bufflen = se_cmd->data_length; cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); - cmd->aborted = (se_cmd->transport_state & CMD_T_ABORTED); cmd->sg_cnt = se_cmd->t_data_nents; cmd->sg = se_cmd->t_data_sg; cmd->offset = 0; - cmd->cmd_flags |= BIT_3; cmd->prot_sg_cnt = se_cmd->t_prot_nents; cmd->prot_sg = se_cmd->t_prot_sg; @@ -571,7 +575,6 @@ static int tcm_qla2xxx_queue_status(struct se_cmd *se_cmd) cmd->sg_cnt = 0; cmd->offset = 0; cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); - cmd->aborted = (se_cmd->transport_state & CMD_T_ABORTED); if (cmd->cmd_flags & BIT_5) { pr_crit("Bit_5 already set for cmd = %p.\n", cmd); dump_stack(); @@ -636,14 +639,7 @@ static void tcm_qla2xxx_aborted_task(struct se_cmd *se_cmd) { struct qla_tgt_cmd *cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); - struct scsi_qla_host *vha = cmd->vha; - struct qla_hw_data *ha = vha->hw; - - if (!cmd->sg_mapped) - return; - - pci_unmap_sg(ha->pdev, cmd->sg, cmd->sg_cnt, cmd->dma_data_direction); - cmd->sg_mapped = 0; + qlt_abort_cmd(cmd); } static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *, @@ -1149,9 +1145,7 @@ static struct qla_tgt_sess *tcm_qla2xxx_find_sess_by_s_id( return NULL; } - key = (((unsigned long)s_id[0] << 16) | - ((unsigned long)s_id[1] << 8) | - (unsigned long)s_id[2]); + key = sid_to_key(s_id); pr_debug("find_sess_by_s_id: 0x%06x\n", key); se_nacl = btree_lookup32(&lport->lport_fcport_map, key); @@ -1186,9 +1180,7 @@ static void tcm_qla2xxx_set_sess_by_s_id( void *slot; int rc; - key = (((unsigned long)s_id[0] << 16) | - ((unsigned long)s_id[1] << 8) | - (unsigned long)s_id[2]); + key = sid_to_key(s_id); pr_debug("set_sess_by_s_id: %06x\n", key); slot = btree_lookup32(&lport->lport_fcport_map, key); @@ -1540,6 +1532,10 @@ static void tcm_qla2xxx_update_sess(struct qla_tgt_sess *sess, port_id_t s_id, } sess->conf_compl_supported = conf_compl_supported; + + /* Reset logout parameters to default */ + sess->logout_on_delete = 1; + sess->keep_nport_handle = 0; } /* diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index 30268bb2ddb6..dfcc45bb03b1 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -25,6 +25,9 @@ * module options to "modprobe scsi_debug num_tgts=2" [20021221] */ + +#define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__ + #include <linux/module.h> #include <linux/kernel.h> @@ -201,7 +204,6 @@ static const char *scsi_debug_version_date = "20141022"; /* If REPORT LUNS has luns >= 256 it can choose "flat space" (value 1) * or "peripheral device" addressing (value 0) */ #define SAM2_LUN_ADDRESS_METHOD 0 -#define SAM2_WLUN_REPORT_LUNS 0xc101 /* SCSI_DEBUG_CANQUEUE is the maximum number of commands that can be queued * (for response) at one time. Can be reduced by max_queue option. Command @@ -698,7 +700,7 @@ static void sdebug_max_tgts_luns(void) else hpnt->max_id = scsi_debug_num_tgts; /* scsi_debug_max_luns; */ - hpnt->max_lun = SAM2_WLUN_REPORT_LUNS; + hpnt->max_lun = SCSI_W_LUN_REPORT_LUNS + 1; } spin_unlock(&sdebug_host_list_lock); } @@ -1288,7 +1290,7 @@ static int resp_inquiry(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) arr = kzalloc(SDEBUG_MAX_INQ_ARR_SZ, GFP_ATOMIC); if (! arr) return DID_REQUEUE << 16; - have_wlun = (scp->device->lun == SAM2_WLUN_REPORT_LUNS); + have_wlun = (scp->device->lun == SCSI_W_LUN_REPORT_LUNS); if (have_wlun) pq_pdt = 0x1e; /* present, wlun */ else if (scsi_debug_no_lun_0 && (0 == devip->lun)) @@ -1427,12 +1429,11 @@ static int resp_requests(struct scsi_cmnd * scp, unsigned char * sbuff; unsigned char *cmd = scp->cmnd; unsigned char arr[SCSI_SENSE_BUFFERSIZE]; - bool dsense, want_dsense; + bool dsense; int len = 18; memset(arr, 0, sizeof(arr)); dsense = !!(cmd[1] & 1); - want_dsense = dsense || scsi_debug_dsense; sbuff = scp->sense_buffer; if ((iec_m_pg[2] & 0x4) && (6 == (iec_m_pg[3] & 0xf))) { if (dsense) { @@ -2446,8 +2447,7 @@ static int dif_verify(struct sd_dif_tuple *sdt, const void *data, __be16 csum = dif_compute_csum(data, scsi_debug_sector_size); if (sdt->guard_tag != csum) { - pr_err("%s: GUARD check failed on sector %lu rcvd 0x%04x, data 0x%04x\n", - __func__, + pr_err("GUARD check failed on sector %lu rcvd 0x%04x, data 0x%04x\n", (unsigned long)sector, be16_to_cpu(sdt->guard_tag), be16_to_cpu(csum)); @@ -2455,14 +2455,14 @@ static int dif_verify(struct sd_dif_tuple *sdt, const void *data, } if (scsi_debug_dif == SD_DIF_TYPE1_PROTECTION && be32_to_cpu(sdt->ref_tag) != (sector & 0xffffffff)) { - pr_err("%s: REF check failed on sector %lu\n", - __func__, (unsigned long)sector); + pr_err("REF check failed on sector %lu\n", + (unsigned long)sector); return 0x03; } if (scsi_debug_dif == SD_DIF_TYPE2_PROTECTION && be32_to_cpu(sdt->ref_tag) != ei_lba) { - pr_err("%s: REF check failed on sector %lu\n", - __func__, (unsigned long)sector); + pr_err("REF check failed on sector %lu\n", + (unsigned long)sector); return 0x03; } return 0; @@ -2680,7 +2680,7 @@ resp_read_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) return 0; } -void dump_sector(unsigned char *buf, int len) +static void dump_sector(unsigned char *buf, int len) { int i, j, n; @@ -3365,8 +3365,8 @@ static int resp_report_luns(struct scsi_cmnd * scp, one_lun[i].scsi_lun[1] = lun & 0xff; } if (want_wlun) { - one_lun[i].scsi_lun[0] = (SAM2_WLUN_REPORT_LUNS >> 8) & 0xff; - one_lun[i].scsi_lun[1] = SAM2_WLUN_REPORT_LUNS & 0xff; + one_lun[i].scsi_lun[0] = (SCSI_W_LUN_REPORT_LUNS >> 8) & 0xff; + one_lun[i].scsi_lun[1] = SCSI_W_LUN_REPORT_LUNS & 0xff; i++; } alloc_len = (unsigned char *)(one_lun + i) - arr; @@ -3449,7 +3449,7 @@ static void sdebug_q_cmd_complete(unsigned long indx) atomic_inc(&sdebug_completions); qa_indx = indx; if ((qa_indx < 0) || (qa_indx >= SCSI_DEBUG_CANQUEUE)) { - pr_err("%s: wild qa_indx=%d\n", __func__, qa_indx); + pr_err("wild qa_indx=%d\n", qa_indx); return; } spin_lock_irqsave(&queued_arr_lock, iflags); @@ -3457,21 +3457,21 @@ static void sdebug_q_cmd_complete(unsigned long indx) scp = sqcp->a_cmnd; if (NULL == scp) { spin_unlock_irqrestore(&queued_arr_lock, iflags); - pr_err("%s: scp is NULL\n", __func__); + pr_err("scp is NULL\n"); return; } devip = (struct sdebug_dev_info *)scp->device->hostdata; if (devip) atomic_dec(&devip->num_in_q); else - pr_err("%s: devip=NULL\n", __func__); + pr_err("devip=NULL\n"); if (atomic_read(&retired_max_queue) > 0) retiring = 1; sqcp->a_cmnd = NULL; if (!test_and_clear_bit(qa_indx, queued_in_use_bm)) { spin_unlock_irqrestore(&queued_arr_lock, iflags); - pr_err("%s: Unexpected completion\n", __func__); + pr_err("Unexpected completion\n"); return; } @@ -3481,7 +3481,7 @@ static void sdebug_q_cmd_complete(unsigned long indx) retval = atomic_read(&retired_max_queue); if (qa_indx >= retval) { spin_unlock_irqrestore(&queued_arr_lock, iflags); - pr_err("%s: index %d too large\n", __func__, retval); + pr_err("index %d too large\n", retval); return; } k = find_last_bit(queued_in_use_bm, retval); @@ -3509,7 +3509,7 @@ sdebug_q_cmd_hrt_complete(struct hrtimer *timer) atomic_inc(&sdebug_completions); qa_indx = sd_hrtp->qa_indx; if ((qa_indx < 0) || (qa_indx >= SCSI_DEBUG_CANQUEUE)) { - pr_err("%s: wild qa_indx=%d\n", __func__, qa_indx); + pr_err("wild qa_indx=%d\n", qa_indx); goto the_end; } spin_lock_irqsave(&queued_arr_lock, iflags); @@ -3517,21 +3517,21 @@ sdebug_q_cmd_hrt_complete(struct hrtimer *timer) scp = sqcp->a_cmnd; if (NULL == scp) { spin_unlock_irqrestore(&queued_arr_lock, iflags); - pr_err("%s: scp is NULL\n", __func__); + pr_err("scp is NULL\n"); goto the_end; } devip = (struct sdebug_dev_info *)scp->device->hostdata; if (devip) atomic_dec(&devip->num_in_q); else - pr_err("%s: devip=NULL\n", __func__); + pr_err("devip=NULL\n"); if (atomic_read(&retired_max_queue) > 0) retiring = 1; sqcp->a_cmnd = NULL; if (!test_and_clear_bit(qa_indx, queued_in_use_bm)) { spin_unlock_irqrestore(&queued_arr_lock, iflags); - pr_err("%s: Unexpected completion\n", __func__); + pr_err("Unexpected completion\n"); goto the_end; } @@ -3541,7 +3541,7 @@ sdebug_q_cmd_hrt_complete(struct hrtimer *timer) retval = atomic_read(&retired_max_queue); if (qa_indx >= retval) { spin_unlock_irqrestore(&queued_arr_lock, iflags); - pr_err("%s: index %d too large\n", __func__, retval); + pr_err("index %d too large\n", retval); goto the_end; } k = find_last_bit(queued_in_use_bm, retval); @@ -3580,7 +3580,7 @@ static struct sdebug_dev_info * devInfoReg(struct scsi_device * sdev) return devip; sdbg_host = *(struct sdebug_host_info **)shost_priv(sdev->host); if (!sdbg_host) { - pr_err("%s: Host info NULL\n", __func__); + pr_err("Host info NULL\n"); return NULL; } list_for_each_entry(devip, &sdbg_host->dev_info_list, dev_list) { @@ -3596,8 +3596,7 @@ static struct sdebug_dev_info * devInfoReg(struct scsi_device * sdev) if (!open_devip) { /* try and make a new one */ open_devip = sdebug_device_create(sdbg_host, GFP_ATOMIC); if (!open_devip) { - printk(KERN_ERR "%s: out of memory at line %d\n", - __func__, __LINE__); + pr_err("out of memory at line %d\n", __LINE__); return NULL; } } @@ -3615,7 +3614,7 @@ static struct sdebug_dev_info * devInfoReg(struct scsi_device * sdev) static int scsi_debug_slave_alloc(struct scsi_device *sdp) { if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts) - printk(KERN_INFO "scsi_debug: slave_alloc <%u %u %u %llu>\n", + pr_info("slave_alloc <%u %u %u %llu>\n", sdp->host->host_no, sdp->channel, sdp->id, sdp->lun); queue_flag_set_unlocked(QUEUE_FLAG_BIDI, sdp->request_queue); return 0; @@ -3626,7 +3625,7 @@ static int scsi_debug_slave_configure(struct scsi_device *sdp) struct sdebug_dev_info *devip; if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts) - printk(KERN_INFO "scsi_debug: slave_configure <%u %u %u %llu>\n", + pr_info("slave_configure <%u %u %u %llu>\n", sdp->host->host_no, sdp->channel, sdp->id, sdp->lun); if (sdp->host->max_cmd_len != SCSI_DEBUG_MAX_CMD_LEN) sdp->host->max_cmd_len = SCSI_DEBUG_MAX_CMD_LEN; @@ -3646,7 +3645,7 @@ static void scsi_debug_slave_destroy(struct scsi_device *sdp) (struct sdebug_dev_info *)sdp->hostdata; if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts) - printk(KERN_INFO "scsi_debug: slave_destroy <%u %u %u %llu>\n", + pr_info("slave_destroy <%u %u %u %llu>\n", sdp->host->host_no, sdp->channel, sdp->id, sdp->lun); if (devip) { /* make this slot available for re-use */ @@ -3897,8 +3896,7 @@ static void __init sdebug_build_parts(unsigned char *ramp, return; if (scsi_debug_num_parts > SDEBUG_MAX_PARTS) { scsi_debug_num_parts = SDEBUG_MAX_PARTS; - pr_warn("%s: reducing partitions to %d\n", __func__, - SDEBUG_MAX_PARTS); + pr_warn("reducing partitions to %d\n", SDEBUG_MAX_PARTS); } num_sectors = (int)sdebug_store_sectors; sectors_per_part = (num_sectors - sdebug_sectors_per) @@ -3942,14 +3940,20 @@ schedule_resp(struct scsi_cmnd *cmnd, struct sdebug_dev_info *devip, unsigned long iflags; int k, num_in_q, qdepth, inject; struct sdebug_queued_cmd *sqcp = NULL; - struct scsi_device *sdp = cmnd->device; + struct scsi_device *sdp; + + /* this should never happen */ + if (WARN_ON(!cmnd)) + return SCSI_MLQUEUE_HOST_BUSY; - if (NULL == cmnd || NULL == devip) { - pr_warn("%s: called with NULL cmnd or devip pointer\n", - __func__); + if (NULL == devip) { + pr_warn("called devip == NULL\n"); /* no particularly good error to report back */ return SCSI_MLQUEUE_HOST_BUSY; } + + sdp = cmnd->device; + if ((scsi_result) && (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)) sdev_printk(KERN_INFO, sdp, "%s: non-zero result=0x%x\n", __func__, scsi_result); @@ -4383,8 +4387,7 @@ static ssize_t fake_rw_store(struct device_driver *ddp, const char *buf, fake_storep = vmalloc(sz); if (NULL == fake_storep) { - pr_err("%s: out of memory, 9\n", - __func__); + pr_err("out of memory, 9\n"); return -ENOMEM; } memset(fake_storep, 0, sz); @@ -4784,8 +4787,7 @@ static int __init scsi_debug_init(void) atomic_set(&retired_max_queue, 0); if (scsi_debug_ndelay >= 1000000000) { - pr_warn("%s: ndelay must be less than 1 second, ignored\n", - __func__); + pr_warn("ndelay must be less than 1 second, ignored\n"); scsi_debug_ndelay = 0; } else if (scsi_debug_ndelay > 0) scsi_debug_delay = DELAY_OVERRIDDEN; @@ -4797,8 +4799,7 @@ static int __init scsi_debug_init(void) case 4096: break; default: - pr_err("%s: invalid sector_size %d\n", __func__, - scsi_debug_sector_size); + pr_err("invalid sector_size %d\n", scsi_debug_sector_size); return -EINVAL; } @@ -4811,29 +4812,28 @@ static int __init scsi_debug_init(void) break; default: - pr_err("%s: dif must be 0, 1, 2 or 3\n", __func__); + pr_err("dif must be 0, 1, 2 or 3\n"); return -EINVAL; } if (scsi_debug_guard > 1) { - pr_err("%s: guard must be 0 or 1\n", __func__); + pr_err("guard must be 0 or 1\n"); return -EINVAL; } if (scsi_debug_ato > 1) { - pr_err("%s: ato must be 0 or 1\n", __func__); + pr_err("ato must be 0 or 1\n"); return -EINVAL; } if (scsi_debug_physblk_exp > 15) { - pr_err("%s: invalid physblk_exp %u\n", __func__, - scsi_debug_physblk_exp); + pr_err("invalid physblk_exp %u\n", scsi_debug_physblk_exp); return -EINVAL; } if (scsi_debug_lowest_aligned > 0x3fff) { - pr_err("%s: lowest_aligned too big: %u\n", __func__, - scsi_debug_lowest_aligned); + pr_err("lowest_aligned too big: %u\n", + scsi_debug_lowest_aligned); return -EINVAL; } @@ -4863,7 +4863,7 @@ static int __init scsi_debug_init(void) if (0 == scsi_debug_fake_rw) { fake_storep = vmalloc(sz); if (NULL == fake_storep) { - pr_err("%s: out of memory, 1\n", __func__); + pr_err("out of memory, 1\n"); return -ENOMEM; } memset(fake_storep, 0, sz); @@ -4877,11 +4877,10 @@ static int __init scsi_debug_init(void) dif_size = sdebug_store_sectors * sizeof(struct sd_dif_tuple); dif_storep = vmalloc(dif_size); - pr_err("%s: dif_storep %u bytes @ %p\n", __func__, dif_size, - dif_storep); + pr_err("dif_storep %u bytes @ %p\n", dif_size, dif_storep); if (dif_storep == NULL) { - pr_err("%s: out of mem. (DIX)\n", __func__); + pr_err("out of mem. (DIX)\n"); ret = -ENOMEM; goto free_vm; } @@ -4903,18 +4902,17 @@ static int __init scsi_debug_init(void) if (scsi_debug_unmap_alignment && scsi_debug_unmap_granularity <= scsi_debug_unmap_alignment) { - pr_err("%s: ERR: unmap_granularity <= unmap_alignment\n", - __func__); + pr_err("ERR: unmap_granularity <= unmap_alignment\n"); return -EINVAL; } map_size = lba_to_map_index(sdebug_store_sectors - 1) + 1; map_storep = vmalloc(BITS_TO_LONGS(map_size) * sizeof(long)); - pr_info("%s: %lu provisioning blocks\n", __func__, map_size); + pr_info("%lu provisioning blocks\n", map_size); if (map_storep == NULL) { - pr_err("%s: out of mem. (MAP)\n", __func__); + pr_err("out of mem. (MAP)\n"); ret = -ENOMEM; goto free_vm; } @@ -4928,18 +4926,18 @@ static int __init scsi_debug_init(void) pseudo_primary = root_device_register("pseudo_0"); if (IS_ERR(pseudo_primary)) { - pr_warn("%s: root_device_register() error\n", __func__); + pr_warn("root_device_register() error\n"); ret = PTR_ERR(pseudo_primary); goto free_vm; } ret = bus_register(&pseudo_lld_bus); if (ret < 0) { - pr_warn("%s: bus_register error: %d\n", __func__, ret); + pr_warn("bus_register error: %d\n", ret); goto dev_unreg; } ret = driver_register(&sdebug_driverfs_driver); if (ret < 0) { - pr_warn("%s: driver_register error: %d\n", __func__, ret); + pr_warn("driver_register error: %d\n", ret); goto bus_unreg; } @@ -4948,16 +4946,14 @@ static int __init scsi_debug_init(void) for (k = 0; k < host_to_add; k++) { if (sdebug_add_adapter()) { - pr_err("%s: sdebug_add_adapter failed k=%d\n", - __func__, k); + pr_err("sdebug_add_adapter failed k=%d\n", k); break; } } - if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts) { - pr_info("%s: built %d host(s)\n", __func__, - scsi_debug_add_host); - } + if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts) + pr_info("built %d host(s)\n", scsi_debug_add_host); + return 0; bus_unreg: @@ -4965,10 +4961,8 @@ bus_unreg: dev_unreg: root_device_unregister(pseudo_primary); free_vm: - if (map_storep) - vfree(map_storep); - if (dif_storep) - vfree(dif_storep); + vfree(map_storep); + vfree(dif_storep); vfree(fake_storep); return ret; @@ -4986,9 +4980,7 @@ static void __exit scsi_debug_exit(void) bus_unregister(&pseudo_lld_bus); root_device_unregister(pseudo_primary); - if (dif_storep) - vfree(dif_storep); - + vfree(dif_storep); vfree(fake_storep); } @@ -5012,8 +5004,7 @@ static int sdebug_add_adapter(void) sdbg_host = kzalloc(sizeof(*sdbg_host),GFP_KERNEL); if (NULL == sdbg_host) { - printk(KERN_ERR "%s: out of memory at line %d\n", - __func__, __LINE__); + pr_err("out of memory at line %d\n", __LINE__); return -ENOMEM; } @@ -5023,8 +5014,7 @@ static int sdebug_add_adapter(void) for (k = 0; k < devs_per_host; k++) { sdbg_devinfo = sdebug_device_create(sdbg_host, GFP_KERNEL); if (!sdbg_devinfo) { - printk(KERN_ERR "%s: out of memory at line %d\n", - __func__, __LINE__); + pr_err("out of memory at line %d\n", __LINE__); error = -ENOMEM; goto clean; } @@ -5178,7 +5168,7 @@ scsi_debug_queuecommand(struct scsi_cmnd *scp) } sdev_printk(KERN_INFO, sdp, "%s: cmd %s\n", my_name, b); } - has_wlun_rl = (sdp->lun == SAM2_WLUN_REPORT_LUNS); + has_wlun_rl = (sdp->lun == SCSI_W_LUN_REPORT_LUNS); if ((sdp->lun >= scsi_debug_max_luns) && !has_wlun_rl) return schedule_resp(scp, NULL, errsts_no_connect, 0); @@ -5338,7 +5328,7 @@ static int sdebug_driver_probe(struct device * dev) sdebug_driver_template.use_clustering = ENABLE_CLUSTERING; hpnt = scsi_host_alloc(&sdebug_driver_template, sizeof(sdbg_host)); if (NULL == hpnt) { - pr_err("%s: scsi_host_alloc failed\n", __func__); + pr_err("scsi_host_alloc failed\n"); error = -ENODEV; return error; } @@ -5349,7 +5339,8 @@ static int sdebug_driver_probe(struct device * dev) hpnt->max_id = scsi_debug_num_tgts + 1; else hpnt->max_id = scsi_debug_num_tgts; - hpnt->max_lun = SAM2_WLUN_REPORT_LUNS; /* = scsi_debug_max_luns; */ + /* = scsi_debug_max_luns; */ + hpnt->max_lun = SCSI_W_LUN_REPORT_LUNS + 1; host_prot = 0; @@ -5381,7 +5372,7 @@ static int sdebug_driver_probe(struct device * dev) scsi_host_set_prot(hpnt, host_prot); - printk(KERN_INFO "scsi_debug: host protection%s%s%s%s%s%s%s\n", + pr_info("host protection%s%s%s%s%s%s%s\n", (host_prot & SHOST_DIF_TYPE1_PROTECTION) ? " DIF1" : "", (host_prot & SHOST_DIF_TYPE2_PROTECTION) ? " DIF2" : "", (host_prot & SHOST_DIF_TYPE3_PROTECTION) ? " DIF3" : "", @@ -5409,7 +5400,7 @@ static int sdebug_driver_probe(struct device * dev) error = scsi_add_host(hpnt, &sdbg_host->dev); if (error) { - printk(KERN_ERR "%s: scsi_add_host failed\n", __func__); + pr_err("scsi_add_host failed\n"); error = -ENODEV; scsi_host_put(hpnt); } else @@ -5426,8 +5417,7 @@ static int sdebug_driver_remove(struct device * dev) sdbg_host = to_sdebug_host(dev); if (!sdbg_host) { - printk(KERN_ERR "%s: Unable to locate host info\n", - __func__); + pr_err("Unable to locate host info\n"); return -ENODEV; } diff --git a/drivers/scsi/scsi_dh.c b/drivers/scsi/scsi_dh.c new file mode 100644 index 000000000000..edb044a7b56d --- /dev/null +++ b/drivers/scsi/scsi_dh.c @@ -0,0 +1,437 @@ +/* + * SCSI device handler infrastruture. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * Copyright IBM Corporation, 2007 + * Authors: + * Chandra Seetharaman <sekharan@us.ibm.com> + * Mike Anderson <andmike@linux.vnet.ibm.com> + */ + +#include <linux/slab.h> +#include <linux/module.h> +#include <scsi/scsi_dh.h> +#include "scsi_priv.h" + +static DEFINE_SPINLOCK(list_lock); +static LIST_HEAD(scsi_dh_list); + +struct scsi_dh_blist { + const char *vendor; + const char *model; + const char *driver; +}; + +static const struct scsi_dh_blist scsi_dh_blist[] = { + {"DGC", "RAID", "clariion" }, + {"DGC", "DISK", "clariion" }, + {"DGC", "VRAID", "clariion" }, + + {"COMPAQ", "MSA1000 VOLUME", "hp_sw" }, + {"COMPAQ", "HSV110", "hp_sw" }, + {"HP", "HSV100", "hp_sw"}, + {"DEC", "HSG80", "hp_sw"}, + + {"IBM", "1722", "rdac", }, + {"IBM", "1724", "rdac", }, + {"IBM", "1726", "rdac", }, + {"IBM", "1742", "rdac", }, + {"IBM", "1745", "rdac", }, + {"IBM", "1746", "rdac", }, + {"IBM", "1813", "rdac", }, + {"IBM", "1814", "rdac", }, + {"IBM", "1815", "rdac", }, + {"IBM", "1818", "rdac", }, + {"IBM", "3526", "rdac", }, + {"SGI", "TP9", "rdac", }, + {"SGI", "IS", "rdac", }, + {"STK", "OPENstorage D280", "rdac", }, + {"STK", "FLEXLINE 380", "rdac", }, + {"SUN", "CSM", "rdac", }, + {"SUN", "LCSM100", "rdac", }, + {"SUN", "STK6580_6780", "rdac", }, + {"SUN", "SUN_6180", "rdac", }, + {"SUN", "ArrayStorage", "rdac", }, + {"DELL", "MD3", "rdac", }, + {"NETAPP", "INF-01-00", "rdac", }, + {"LSI", "INF-01-00", "rdac", }, + {"ENGENIO", "INF-01-00", "rdac", }, + {NULL, NULL, NULL }, +}; + +static const char * +scsi_dh_find_driver(struct scsi_device *sdev) +{ + const struct scsi_dh_blist *b; + + if (scsi_device_tpgs(sdev)) + return "alua"; + + for (b = scsi_dh_blist; b->vendor; b++) { + if (!strncmp(sdev->vendor, b->vendor, strlen(b->vendor)) && + !strncmp(sdev->model, b->model, strlen(b->model))) { + return b->driver; + } + } + return NULL; +} + + +static struct scsi_device_handler *__scsi_dh_lookup(const char *name) +{ + struct scsi_device_handler *tmp, *found = NULL; + + spin_lock(&list_lock); + list_for_each_entry(tmp, &scsi_dh_list, list) { + if (!strncmp(tmp->name, name, strlen(tmp->name))) { + found = tmp; + break; + } + } + spin_unlock(&list_lock); + return found; +} + +static struct scsi_device_handler *scsi_dh_lookup(const char *name) +{ + struct scsi_device_handler *dh; + + dh = __scsi_dh_lookup(name); + if (!dh) { + request_module(name); + dh = __scsi_dh_lookup(name); + } + + return dh; +} + +/* + * scsi_dh_handler_attach - Attach a device handler to a device + * @sdev - SCSI device the device handler should attach to + * @scsi_dh - The device handler to attach + */ +static int scsi_dh_handler_attach(struct scsi_device *sdev, + struct scsi_device_handler *scsi_dh) +{ + int error; + + if (!try_module_get(scsi_dh->module)) + return -EINVAL; + + error = scsi_dh->attach(sdev); + if (error) { + sdev_printk(KERN_ERR, sdev, "%s: Attach failed (%d)\n", + scsi_dh->name, error); + module_put(scsi_dh->module); + } else + sdev->handler = scsi_dh; + + return error; +} + +/* + * scsi_dh_handler_detach - Detach a device handler from a device + * @sdev - SCSI device the device handler should be detached from + */ +static void scsi_dh_handler_detach(struct scsi_device *sdev) +{ + sdev->handler->detach(sdev); + sdev_printk(KERN_NOTICE, sdev, "%s: Detached\n", sdev->handler->name); + module_put(sdev->handler->module); +} + +/* + * Functions for sysfs attribute 'dh_state' + */ +static ssize_t +store_dh_state(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct scsi_device *sdev = to_scsi_device(dev); + struct scsi_device_handler *scsi_dh; + int err = -EINVAL; + + if (sdev->sdev_state == SDEV_CANCEL || + sdev->sdev_state == SDEV_DEL) + return -ENODEV; + + if (!sdev->handler) { + /* + * Attach to a device handler + */ + scsi_dh = scsi_dh_lookup(buf); + if (!scsi_dh) + return err; + err = scsi_dh_handler_attach(sdev, scsi_dh); + } else { + if (!strncmp(buf, "detach", 6)) { + /* + * Detach from a device handler + */ + sdev_printk(KERN_WARNING, sdev, + "can't detach handler %s.\n", + sdev->handler->name); + err = -EINVAL; + } else if (!strncmp(buf, "activate", 8)) { + /* + * Activate a device handler + */ + if (sdev->handler->activate) + err = sdev->handler->activate(sdev, NULL, NULL); + else + err = 0; + } + } + + return err<0?err:count; +} + +static ssize_t +show_dh_state(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct scsi_device *sdev = to_scsi_device(dev); + + if (!sdev->handler) + return snprintf(buf, 20, "detached\n"); + + return snprintf(buf, 20, "%s\n", sdev->handler->name); +} + +static struct device_attribute scsi_dh_state_attr = + __ATTR(dh_state, S_IRUGO | S_IWUSR, show_dh_state, + store_dh_state); + +int scsi_dh_add_device(struct scsi_device *sdev) +{ + struct scsi_device_handler *devinfo = NULL; + const char *drv; + int err; + + err = device_create_file(&sdev->sdev_gendev, &scsi_dh_state_attr); + if (err) + return err; + + drv = scsi_dh_find_driver(sdev); + if (drv) + devinfo = scsi_dh_lookup(drv); + if (devinfo) + err = scsi_dh_handler_attach(sdev, devinfo); + return err; +} + +void scsi_dh_remove_device(struct scsi_device *sdev) +{ + if (sdev->handler) + scsi_dh_handler_detach(sdev); + device_remove_file(&sdev->sdev_gendev, &scsi_dh_state_attr); +} + +/* + * scsi_register_device_handler - register a device handler personality + * module. + * @scsi_dh - device handler to be registered. + * + * Returns 0 on success, -EBUSY if handler already registered. + */ +int scsi_register_device_handler(struct scsi_device_handler *scsi_dh) +{ + if (__scsi_dh_lookup(scsi_dh->name)) + return -EBUSY; + + if (!scsi_dh->attach || !scsi_dh->detach) + return -EINVAL; + + spin_lock(&list_lock); + list_add(&scsi_dh->list, &scsi_dh_list); + spin_unlock(&list_lock); + + printk(KERN_INFO "%s: device handler registered\n", scsi_dh->name); + + return SCSI_DH_OK; +} +EXPORT_SYMBOL_GPL(scsi_register_device_handler); + +/* + * scsi_unregister_device_handler - register a device handler personality + * module. + * @scsi_dh - device handler to be unregistered. + * + * Returns 0 on success, -ENODEV if handler not registered. + */ +int scsi_unregister_device_handler(struct scsi_device_handler *scsi_dh) +{ + if (!__scsi_dh_lookup(scsi_dh->name)) + return -ENODEV; + + spin_lock(&list_lock); + list_del(&scsi_dh->list); + spin_unlock(&list_lock); + printk(KERN_INFO "%s: device handler unregistered\n", scsi_dh->name); + + return SCSI_DH_OK; +} +EXPORT_SYMBOL_GPL(scsi_unregister_device_handler); + +static struct scsi_device *get_sdev_from_queue(struct request_queue *q) +{ + struct scsi_device *sdev; + unsigned long flags; + + spin_lock_irqsave(q->queue_lock, flags); + sdev = q->queuedata; + if (!sdev || !get_device(&sdev->sdev_gendev)) + sdev = NULL; + spin_unlock_irqrestore(q->queue_lock, flags); + + return sdev; +} + +/* + * scsi_dh_activate - activate the path associated with the scsi_device + * corresponding to the given request queue. + * Returns immediately without waiting for activation to be completed. + * @q - Request queue that is associated with the scsi_device to be + * activated. + * @fn - Function to be called upon completion of the activation. + * Function fn is called with data (below) and the error code. + * Function fn may be called from the same calling context. So, + * do not hold the lock in the caller which may be needed in fn. + * @data - data passed to the function fn upon completion. + * + */ +int scsi_dh_activate(struct request_queue *q, activate_complete fn, void *data) +{ + struct scsi_device *sdev; + int err = SCSI_DH_NOSYS; + + sdev = get_sdev_from_queue(q); + if (!sdev) { + if (fn) + fn(data, err); + return err; + } + + if (!sdev->handler) + goto out_fn; + err = SCSI_DH_NOTCONN; + if (sdev->sdev_state == SDEV_CANCEL || + sdev->sdev_state == SDEV_DEL) + goto out_fn; + + err = SCSI_DH_DEV_OFFLINED; + if (sdev->sdev_state == SDEV_OFFLINE) + goto out_fn; + + if (sdev->handler->activate) + err = sdev->handler->activate(sdev, fn, data); + +out_put_device: + put_device(&sdev->sdev_gendev); + return err; + +out_fn: + if (fn) + fn(data, err); + goto out_put_device; +} +EXPORT_SYMBOL_GPL(scsi_dh_activate); + +/* + * scsi_dh_set_params - set the parameters for the device as per the + * string specified in params. + * @q - Request queue that is associated with the scsi_device for + * which the parameters to be set. + * @params - parameters in the following format + * "no_of_params\0param1\0param2\0param3\0...\0" + * for example, string for 2 parameters with value 10 and 21 + * is specified as "2\010\021\0". + */ +int scsi_dh_set_params(struct request_queue *q, const char *params) +{ + struct scsi_device *sdev; + int err = -SCSI_DH_NOSYS; + + sdev = get_sdev_from_queue(q); + if (!sdev) + return err; + + if (sdev->handler && sdev->handler->set_params) + err = sdev->handler->set_params(sdev, params); + put_device(&sdev->sdev_gendev); + return err; +} +EXPORT_SYMBOL_GPL(scsi_dh_set_params); + +/* + * scsi_dh_attach - Attach device handler + * @q - Request queue that is associated with the scsi_device + * the handler should be attached to + * @name - name of the handler to attach + */ +int scsi_dh_attach(struct request_queue *q, const char *name) +{ + struct scsi_device *sdev; + struct scsi_device_handler *scsi_dh; + int err = 0; + + sdev = get_sdev_from_queue(q); + if (!sdev) + return -ENODEV; + + scsi_dh = scsi_dh_lookup(name); + if (!scsi_dh) { + err = -EINVAL; + goto out_put_device; + } + + if (sdev->handler) { + if (sdev->handler != scsi_dh) + err = -EBUSY; + goto out_put_device; + } + + err = scsi_dh_handler_attach(sdev, scsi_dh); + +out_put_device: + put_device(&sdev->sdev_gendev); + return err; +} +EXPORT_SYMBOL_GPL(scsi_dh_attach); + +/* + * scsi_dh_attached_handler_name - Get attached device handler's name + * @q - Request queue that is associated with the scsi_device + * that may have a device handler attached + * @gfp - the GFP mask used in the kmalloc() call when allocating memory + * + * Returns name of attached handler, NULL if no handler is attached. + * Caller must take care to free the returned string. + */ +const char *scsi_dh_attached_handler_name(struct request_queue *q, gfp_t gfp) +{ + struct scsi_device *sdev; + const char *handler_name = NULL; + + sdev = get_sdev_from_queue(q); + if (!sdev) + return NULL; + + if (sdev->handler) + handler_name = kstrdup(sdev->handler->name, gfp); + put_device(&sdev->sdev_gendev); + return handler_name; +} +EXPORT_SYMBOL_GPL(scsi_dh_attached_handler_name); diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 6e6b2d26d3ce..66a96cd98b97 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -37,6 +37,7 @@ #include <scsi/scsi_transport.h> #include <scsi/scsi_host.h> #include <scsi/scsi_ioctl.h> +#include <scsi/scsi_dh.h> #include <scsi/sg.h> #include "scsi_priv.h" @@ -421,6 +422,10 @@ static void scsi_report_sense(struct scsi_device *sdev, evt_type = SDEV_EVT_MODE_PARAMETER_CHANGE_REPORTED; sdev_printk(KERN_WARNING, sdev, "Mode parameters changed"); + } else if (sshdr->asc == 0x2a && sshdr->ascq == 0x06) { + evt_type = SDEV_EVT_ALUA_STATE_CHANGE_REPORTED; + sdev_printk(KERN_WARNING, sdev, + "Asymmetric access state changed"); } else if (sshdr->asc == 0x2a && sshdr->ascq == 0x09) { evt_type = SDEV_EVT_CAPACITY_CHANGE_REPORTED; sdev_printk(KERN_WARNING, sdev, @@ -460,11 +465,10 @@ static int scsi_check_sense(struct scsi_cmnd *scmd) if (scsi_sense_is_deferred(&sshdr)) return NEEDS_RETRY; - if (sdev->scsi_dh_data && sdev->scsi_dh_data->scsi_dh && - sdev->scsi_dh_data->scsi_dh->check_sense) { + if (sdev->handler && sdev->handler->check_sense) { int rc; - rc = sdev->scsi_dh_data->scsi_dh->check_sense(sdev, &sshdr); + rc = sdev->handler->check_sense(sdev, &sshdr); if (rc != SCSI_RETURN_NOT_HANDLED) return rc; /* handler does not care. Drop down to default handling */ @@ -944,7 +948,7 @@ void scsi_eh_prep_cmnd(struct scsi_cmnd *scmd, struct scsi_eh_save *ses, scmd->sdb.length); scmd->sdb.table.sgl = &ses->sense_sgl; scmd->sc_data_direction = DMA_FROM_DEVICE; - scmd->sdb.table.nents = 1; + scmd->sdb.table.nents = scmd->sdb.table.orig_nents = 1; scmd->cmnd[0] = REQUEST_SENSE; scmd->cmnd[4] = scmd->sdb.length; scmd->cmd_len = COMMAND_SIZE(scmd->cmnd[0]); @@ -1156,8 +1160,13 @@ int scsi_eh_get_sense(struct list_head *work_q, struct Scsi_Host *shost; int rtn; + /* + * If SCSI_EH_ABORT_SCHEDULED has been set, it is timeout IO, + * should not get sense. + */ list_for_each_entry_safe(scmd, next, work_q, eh_entry) { if ((scmd->eh_eflags & SCSI_EH_CANCEL_CMD) || + (scmd->eh_eflags & SCSI_EH_ABORT_SCHEDULED) || SCSI_SENSE_VALID(scmd)) continue; @@ -2170,8 +2179,17 @@ int scsi_error_handler(void *data) * We never actually get interrupted because kthread_run * disables signal delivery for the created thread. */ - while (!kthread_should_stop()) { + while (true) { + /* + * The sequence in kthread_stop() sets the stop flag first + * then wakes the process. To avoid missed wakeups, the task + * should always be in a non running state before the stop + * flag is checked + */ set_current_state(TASK_INTERRUPTIBLE); + if (kthread_should_stop()) + break; + if ((shost->host_failed == 0 && shost->host_eh_scheduled == 0) || shost->host_failed != atomic_read(&shost->host_busy)) { SCSI_LOG_ERROR_RECOVERY(1, diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index b1a263137a23..cbfc5990052b 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -31,6 +31,7 @@ #include <scsi/scsi_driver.h> #include <scsi/scsi_eh.h> #include <scsi/scsi_host.h> +#include <scsi/scsi_dh.h> #include <trace/events/scsi.h> @@ -583,7 +584,7 @@ static struct scatterlist *scsi_sg_alloc(unsigned int nents, gfp_t gfp_mask) static void scsi_free_sgtable(struct scsi_data_buffer *sdb, bool mq) { - if (mq && sdb->table.nents <= SCSI_MAX_SG_SEGMENTS) + if (mq && sdb->table.orig_nents <= SCSI_MAX_SG_SEGMENTS) return; __sg_free_table(&sdb->table, SCSI_MAX_SG_SEGMENTS, mq, scsi_sg_free); } @@ -597,8 +598,8 @@ static int scsi_alloc_sgtable(struct scsi_data_buffer *sdb, int nents, bool mq) if (mq) { if (nents <= SCSI_MAX_SG_SEGMENTS) { - sdb->table.nents = nents; - sg_init_table(sdb->table.sgl, sdb->table.nents); + sdb->table.nents = sdb->table.orig_nents = nents; + sg_init_table(sdb->table.sgl, nents); return 0; } first_chunk = sdb->table.sgl; @@ -1248,9 +1249,8 @@ static int scsi_setup_fs_cmnd(struct scsi_device *sdev, struct request *req) { struct scsi_cmnd *cmd = req->special; - if (unlikely(sdev->scsi_dh_data && sdev->scsi_dh_data->scsi_dh - && sdev->scsi_dh_data->scsi_dh->prep_fn)) { - int ret = sdev->scsi_dh_data->scsi_dh->prep_fn(sdev, req); + if (unlikely(sdev->handler && sdev->handler->prep_fn)) { + int ret = sdev->handler->prep_fn(sdev, req); if (ret != BLKPREP_OK) return ret; } @@ -2423,7 +2423,7 @@ scsi_mode_sense(struct scsi_device *sdev, int dbd, int modepage, unsigned char cmd[12]; int use_10_for_ms; int header_length; - int result; + int result, retry_count = retries; struct scsi_sense_hdr my_sshdr; memset(data, 0, sizeof(*data)); @@ -2502,6 +2502,11 @@ scsi_mode_sense(struct scsi_device *sdev, int dbd, int modepage, data->block_descriptor_length = buffer[3]; } data->header_length = header_length; + } else if ((status_byte(result) == CHECK_CONDITION) && + scsi_sense_valid(sshdr) && + sshdr->sense_key == UNIT_ATTENTION && retry_count) { + retry_count--; + goto retry; } return result; @@ -2707,6 +2712,9 @@ static void scsi_evt_emit(struct scsi_device *sdev, struct scsi_event *evt) case SDEV_EVT_LUN_CHANGE_REPORTED: envp[idx++] = "SDEV_UA=REPORTED_LUNS_DATA_HAS_CHANGED"; break; + case SDEV_EVT_ALUA_STATE_CHANGE_REPORTED: + envp[idx++] = "SDEV_UA=ASYMMETRIC_ACCESS_STATE_CHANGED"; + break; default: /* do nothing */ break; @@ -2810,6 +2818,7 @@ struct scsi_event *sdev_evt_alloc(enum scsi_device_event evt_type, case SDEV_EVT_SOFT_THRESHOLD_REACHED_REPORTED: case SDEV_EVT_MODE_PARAMETER_CHANGE_REPORTED: case SDEV_EVT_LUN_CHANGE_REPORTED: + case SDEV_EVT_ALUA_STATE_CHANGE_REPORTED: default: /* do nothing */ break; diff --git a/drivers/scsi/scsi_pm.c b/drivers/scsi/scsi_pm.c index 9e43ae1d2163..e4b799837948 100644 --- a/drivers/scsi/scsi_pm.c +++ b/drivers/scsi/scsi_pm.c @@ -217,15 +217,15 @@ static int sdev_runtime_suspend(struct device *dev) { const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL; struct scsi_device *sdev = to_scsi_device(dev); - int err; + int err = 0; - err = blk_pre_runtime_suspend(sdev->request_queue); - if (err) - return err; - if (pm && pm->runtime_suspend) + if (pm && pm->runtime_suspend) { + err = blk_pre_runtime_suspend(sdev->request_queue); + if (err) + return err; err = pm->runtime_suspend(dev); - blk_post_runtime_suspend(sdev->request_queue, err); - + blk_post_runtime_suspend(sdev->request_queue, err); + } return err; } @@ -248,11 +248,11 @@ static int sdev_runtime_resume(struct device *dev) const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL; int err = 0; - blk_pre_runtime_resume(sdev->request_queue); - if (pm && pm->runtime_resume) + if (pm && pm->runtime_resume) { + blk_pre_runtime_resume(sdev->request_queue); err = pm->runtime_resume(dev); - blk_post_runtime_resume(sdev->request_queue, err); - + blk_post_runtime_resume(sdev->request_queue, err); + } return err; } diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h index e3902fc66278..644bb7339b55 100644 --- a/drivers/scsi/scsi_priv.h +++ b/drivers/scsi/scsi_priv.h @@ -170,6 +170,15 @@ static inline void scsi_autopm_put_host(struct Scsi_Host *h) {} extern struct async_domain scsi_sd_pm_domain; extern struct async_domain scsi_sd_probe_domain; +/* scsi_dh.c */ +#ifdef CONFIG_SCSI_DH +int scsi_dh_add_device(struct scsi_device *sdev); +void scsi_dh_remove_device(struct scsi_device *sdev); +#else +static inline int scsi_dh_add_device(struct scsi_device *sdev) { return 0; } +static inline void scsi_dh_remove_device(struct scsi_device *sdev) { } +#endif + /* * internal scsi timeout functions: for use by mid-layer and transport * classes. diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c index 1ac38e73df7e..b333389f248f 100644 --- a/drivers/scsi/scsi_sysfs.c +++ b/drivers/scsi/scsi_sysfs.c @@ -859,7 +859,7 @@ sdev_store_queue_depth(struct device *dev, struct device_attribute *attr, depth = simple_strtoul(buf, NULL, 0); - if (depth < 1 || depth > sht->can_queue) + if (depth < 1 || depth > sdev->host->can_queue) return -EINVAL; retval = sht->change_queue_depth(sdev, depth); @@ -1030,11 +1030,20 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev) "failed to add device: %d\n", error); return error; } + + error = scsi_dh_add_device(sdev); + if (error) { + sdev_printk(KERN_INFO, sdev, + "failed to add device handler: %d\n", error); + return error; + } + device_enable_async_suspend(&sdev->sdev_dev); error = device_add(&sdev->sdev_dev); if (error) { sdev_printk(KERN_INFO, sdev, "failed to add class device: %d\n", error); + scsi_dh_remove_device(sdev); device_del(&sdev->sdev_gendev); return error; } @@ -1074,6 +1083,7 @@ void __scsi_remove_device(struct scsi_device *sdev) bsg_unregister_queue(sdev->request_queue); device_unregister(&sdev->sdev_dev); transport_remove_device(dev); + scsi_dh_remove_device(sdev); device_del(dev); } else put_device(&sdev->sdev_dev); diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index 55647aae065c..e4b3d8f4fd85 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -2042,6 +2042,7 @@ iscsi_alloc_session(struct Scsi_Host *shost, struct iscsi_transport *transport, session->transport = transport; session->creator = -1; session->recovery_tmo = 120; + session->recovery_tmo_sysfs_override = false; session->state = ISCSI_SESSION_FREE; INIT_DELAYED_WORK(&session->recovery_work, session_recovery_timedout); INIT_LIST_HEAD(&session->sess_list); @@ -2786,7 +2787,8 @@ iscsi_set_param(struct iscsi_transport *transport, struct iscsi_uevent *ev) switch (ev->u.set_param.param) { case ISCSI_PARAM_SESS_RECOVERY_TMO: sscanf(data, "%d", &value); - session->recovery_tmo = value; + if (!session->recovery_tmo_sysfs_override) + session->recovery_tmo = value; break; default: err = transport->set_param(conn, ev->u.set_param.param, @@ -3037,7 +3039,7 @@ iscsi_get_chap(struct iscsi_transport *transport, struct nlmsghdr *nlh) shost = scsi_host_lookup(ev->u.get_chap.host_no); if (!shost) { - printk(KERN_ERR "%s: failed. Cound not find host no %u\n", + printk(KERN_ERR "%s: failed. Could not find host no %u\n", __func__, ev->u.get_chap.host_no); return -ENODEV; } @@ -4049,13 +4051,15 @@ store_priv_session_##field(struct device *dev, \ if ((session->state == ISCSI_SESSION_FREE) || \ (session->state == ISCSI_SESSION_FAILED)) \ return -EBUSY; \ - if (strncmp(buf, "off", 3) == 0) \ + if (strncmp(buf, "off", 3) == 0) { \ session->field = -1; \ - else { \ + session->field##_sysfs_override = true; \ + } else { \ val = simple_strtoul(buf, &cp, 0); \ if (*cp != '\0' && *cp != '\n') \ return -EINVAL; \ session->field = val; \ + session->field##_sysfs_override = true; \ } \ return count; \ } @@ -4066,6 +4070,7 @@ store_priv_session_##field(struct device *dev, \ static ISCSI_CLASS_ATTR(priv_sess, field, S_IRUGO | S_IWUSR, \ show_priv_session_##field, \ store_priv_session_##field) + iscsi_priv_session_rw_attr(recovery_tmo, "%d"); static struct attribute *iscsi_session_attrs[] = { diff --git a/drivers/scsi/scsi_transport_sas.c b/drivers/scsi/scsi_transport_sas.c index 9a058194b9bd..30d26e345dcc 100644 --- a/drivers/scsi/scsi_transport_sas.c +++ b/drivers/scsi/scsi_transport_sas.c @@ -1222,13 +1222,6 @@ show_sas_rphy_enclosure_identifier(struct device *dev, u64 identifier; int error; - /* - * Only devices behind an expander are supported, because the - * enclosure identifier is a SMP feature. - */ - if (scsi_is_sas_phy_local(phy)) - return -EINVAL; - error = i->f->get_enclosure_identifier(rphy, &identifier); if (error) return error; @@ -1248,9 +1241,6 @@ show_sas_rphy_bay_identifier(struct device *dev, struct sas_internal *i = to_sas_internal(shost->transportt); int val; - if (scsi_is_sas_phy_local(phy)) - return -EINVAL; - val = i->f->get_bay_identifier(rphy); if (val < 0) return val; diff --git a/drivers/scsi/scsi_transport_spi.c b/drivers/scsi/scsi_transport_spi.c index 31bbb0da3397..319868f3f674 100644 --- a/drivers/scsi/scsi_transport_spi.c +++ b/drivers/scsi/scsi_transport_spi.c @@ -786,10 +786,10 @@ spi_dv_retrain(struct scsi_device *sdev, u8 *buffer, u8 *ptr, * IU, then QAS (if we can control them), then finally * fall down the periods */ if (i->f->set_iu && spi_iu(starget)) { - starget_printk(KERN_ERR, starget, "Domain Validation Disabing Information Units\n"); + starget_printk(KERN_ERR, starget, "Domain Validation Disabling Information Units\n"); DV_SET(iu, 0); } else if (i->f->set_qas && spi_qas(starget)) { - starget_printk(KERN_ERR, starget, "Domain Validation Disabing Quick Arbitration and Selection\n"); + starget_printk(KERN_ERR, starget, "Domain Validation Disabling Quick Arbitration and Selection\n"); DV_SET(qas, 0); } else { newperiod = spi_period(starget); diff --git a/drivers/scsi/scsi_transport_srp.c b/drivers/scsi/scsi_transport_srp.c index a85292b1d09d..e3cd3ece4412 100644 --- a/drivers/scsi/scsi_transport_srp.c +++ b/drivers/scsi/scsi_transport_srp.c @@ -203,7 +203,7 @@ static ssize_t srp_show_tmo(char *buf, int tmo) return tmo >= 0 ? sprintf(buf, "%d\n", tmo) : sprintf(buf, "off\n"); } -static int srp_parse_tmo(int *tmo, const char *buf) +int srp_parse_tmo(int *tmo, const char *buf) { int res = 0; @@ -214,6 +214,7 @@ static int srp_parse_tmo(int *tmo, const char *buf) return res; } +EXPORT_SYMBOL(srp_parse_tmo); static ssize_t show_reconnect_delay(struct device *dev, struct device_attribute *attr, char *buf) diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 3b2fcb4fada0..3f370228bf31 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -647,7 +647,7 @@ static void sd_config_discard(struct scsi_disk *sdkp, unsigned int mode) switch (mode) { case SD_LBP_DISABLE: - q->limits.max_discard_sectors = 0; + blk_queue_max_discard_sectors(q, 0); queue_flag_clear_unlocked(QUEUE_FLAG_DISCARD, q); return; @@ -675,7 +675,7 @@ static void sd_config_discard(struct scsi_disk *sdkp, unsigned int mode) break; } - q->limits.max_discard_sectors = max_blocks * (logical_block_size >> 9); + blk_queue_max_discard_sectors(q, max_blocks * (logical_block_size >> 9)); queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q); } @@ -2770,9 +2770,9 @@ static int sd_revalidate_disk(struct gendisk *disk) max_xfer = sdkp->max_xfer_blocks; max_xfer <<= ilog2(sdp->sector_size) - 9; - max_xfer = min_not_zero(queue_max_hw_sectors(sdkp->disk->queue), - max_xfer); - blk_queue_max_hw_sectors(sdkp->disk->queue, max_xfer); + sdkp->disk->queue->limits.max_sectors = + min_not_zero(queue_max_hw_sectors(sdkp->disk->queue), max_xfer); + set_capacity(disk, sdkp->capacity); sd_config_write_same(sdkp); kfree(buffer); diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index 3f25b8fa921d..b37b9b00c4b4 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -85,6 +85,7 @@ static int debug_flag; static struct class st_sysfs_class; static const struct attribute_group *st_dev_groups[]; +static const struct attribute_group *st_drv_groups[]; MODULE_AUTHOR("Kai Makisara"); MODULE_DESCRIPTION("SCSI tape (st) driver"); @@ -198,15 +199,13 @@ static int sgl_unmap_user_pages(struct st_buffer *, const unsigned int, int); static int st_probe(struct device *); static int st_remove(struct device *); -static int do_create_sysfs_files(void); -static void do_remove_sysfs_files(void); - static struct scsi_driver st_template = { .gendrv = { .name = "st", .owner = THIS_MODULE, .probe = st_probe, .remove = st_remove, + .groups = st_drv_groups, }, }; @@ -1329,9 +1328,9 @@ static int st_open(struct inode *inode, struct file *filp) spin_lock(&st_use_lock); STp->in_use = 0; spin_unlock(&st_use_lock); - scsi_tape_put(STp); if (resumed) scsi_autopm_put_device(STp->device); + scsi_tape_put(STp); return retval; } @@ -4404,14 +4403,8 @@ static int __init init_st(void) if (err) goto err_chrdev; - err = do_create_sysfs_files(); - if (err) - goto err_scsidrv; - return 0; -err_scsidrv: - scsi_unregister_driver(&st_template.gendrv); err_chrdev: unregister_chrdev_region(MKDEV(SCSI_TAPE_MAJOR, 0), ST_MAX_TAPE_ENTRIES); @@ -4422,11 +4415,11 @@ err_class: static void __exit exit_st(void) { - do_remove_sysfs_files(); scsi_unregister_driver(&st_template.gendrv); unregister_chrdev_region(MKDEV(SCSI_TAPE_MAJOR, 0), ST_MAX_TAPE_ENTRIES); class_unregister(&st_sysfs_class); + idr_destroy(&st_index_idr); printk(KERN_INFO "st: Unloaded.\n"); } @@ -4435,68 +4428,38 @@ module_exit(exit_st); /* The sysfs driver interface. Read-only at the moment */ -static ssize_t st_try_direct_io_show(struct device_driver *ddp, char *buf) +static ssize_t try_direct_io_show(struct device_driver *ddp, char *buf) { - return snprintf(buf, PAGE_SIZE, "%d\n", try_direct_io); + return scnprintf(buf, PAGE_SIZE, "%d\n", try_direct_io); } -static DRIVER_ATTR(try_direct_io, S_IRUGO, st_try_direct_io_show, NULL); +static DRIVER_ATTR_RO(try_direct_io); -static ssize_t st_fixed_buffer_size_show(struct device_driver *ddp, char *buf) +static ssize_t fixed_buffer_size_show(struct device_driver *ddp, char *buf) { - return snprintf(buf, PAGE_SIZE, "%d\n", st_fixed_buffer_size); + return scnprintf(buf, PAGE_SIZE, "%d\n", st_fixed_buffer_size); } -static DRIVER_ATTR(fixed_buffer_size, S_IRUGO, st_fixed_buffer_size_show, NULL); +static DRIVER_ATTR_RO(fixed_buffer_size); -static ssize_t st_max_sg_segs_show(struct device_driver *ddp, char *buf) +static ssize_t max_sg_segs_show(struct device_driver *ddp, char *buf) { - return snprintf(buf, PAGE_SIZE, "%d\n", st_max_sg_segs); + return scnprintf(buf, PAGE_SIZE, "%d\n", st_max_sg_segs); } -static DRIVER_ATTR(max_sg_segs, S_IRUGO, st_max_sg_segs_show, NULL); +static DRIVER_ATTR_RO(max_sg_segs); -static ssize_t st_version_show(struct device_driver *ddd, char *buf) +static ssize_t version_show(struct device_driver *ddd, char *buf) { - return snprintf(buf, PAGE_SIZE, "[%s]\n", verstr); + return scnprintf(buf, PAGE_SIZE, "[%s]\n", verstr); } -static DRIVER_ATTR(version, S_IRUGO, st_version_show, NULL); +static DRIVER_ATTR_RO(version); -static int do_create_sysfs_files(void) -{ - struct device_driver *sysfs = &st_template.gendrv; - int err; - - err = driver_create_file(sysfs, &driver_attr_try_direct_io); - if (err) - return err; - err = driver_create_file(sysfs, &driver_attr_fixed_buffer_size); - if (err) - goto err_try_direct_io; - err = driver_create_file(sysfs, &driver_attr_max_sg_segs); - if (err) - goto err_attr_fixed_buf; - err = driver_create_file(sysfs, &driver_attr_version); - if (err) - goto err_attr_max_sg; - - return 0; - -err_attr_max_sg: - driver_remove_file(sysfs, &driver_attr_max_sg_segs); -err_attr_fixed_buf: - driver_remove_file(sysfs, &driver_attr_fixed_buffer_size); -err_try_direct_io: - driver_remove_file(sysfs, &driver_attr_try_direct_io); - return err; -} - -static void do_remove_sysfs_files(void) -{ - struct device_driver *sysfs = &st_template.gendrv; - - driver_remove_file(sysfs, &driver_attr_version); - driver_remove_file(sysfs, &driver_attr_max_sg_segs); - driver_remove_file(sysfs, &driver_attr_fixed_buffer_size); - driver_remove_file(sysfs, &driver_attr_try_direct_io); -} +static struct attribute *st_drv_attrs[] = { + &driver_attr_try_direct_io.attr, + &driver_attr_fixed_buffer_size.attr, + &driver_attr_max_sg_segs.attr, + &driver_attr_version.attr, + NULL, +}; +ATTRIBUTE_GROUPS(st_drv); /* The sysfs simple class interface */ static ssize_t diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c index 3c6584ff65c1..40c43aeb4ff3 100644 --- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -56,15 +56,18 @@ * V1 RC > 2008/1/31: 2.0 * Win7: 4.2 * Win8: 5.1 + * Win8.1: 6.0 + * Win10: 6.2 */ +#define VMSTOR_PROTO_VERSION(MAJOR_, MINOR_) ((((MAJOR_) & 0xff) << 8) | \ + (((MINOR_) & 0xff))) -#define VMSTOR_WIN7_MAJOR 4 -#define VMSTOR_WIN7_MINOR 2 - -#define VMSTOR_WIN8_MAJOR 5 -#define VMSTOR_WIN8_MINOR 1 - +#define VMSTOR_PROTO_VERSION_WIN6 VMSTOR_PROTO_VERSION(2, 0) +#define VMSTOR_PROTO_VERSION_WIN7 VMSTOR_PROTO_VERSION(4, 2) +#define VMSTOR_PROTO_VERSION_WIN8 VMSTOR_PROTO_VERSION(5, 1) +#define VMSTOR_PROTO_VERSION_WIN8_1 VMSTOR_PROTO_VERSION(6, 0) +#define VMSTOR_PROTO_VERSION_WIN10 VMSTOR_PROTO_VERSION(6, 2) /* Packet structure describing virtual storage requests. */ enum vstor_packet_operation { @@ -148,21 +151,18 @@ struct hv_fc_wwn_packet { /* * Sense buffer size changed in win8; have a run-time - * variable to track the size we should use. + * variable to track the size we should use. This value will + * likely change during protocol negotiation but it is valid + * to start by assuming pre-Win8. */ -static int sense_buffer_size; +static int sense_buffer_size = PRE_WIN8_STORVSC_SENSE_BUFFER_SIZE; /* - * The size of the vmscsi_request has changed in win8. The - * additional size is because of new elements added to the - * structure. These elements are valid only when we are talking - * to a win8 host. - * Track the correction to size we need to apply. - */ - -static int vmscsi_size_delta; -static int vmstor_current_major; -static int vmstor_current_minor; + * The storage protocol version is determined during the + * initial exchange with the host. It will indicate which + * storage functionality is available in the host. +*/ +static int vmstor_proto_version; struct vmscsi_win8_extension { /* @@ -207,6 +207,56 @@ struct vmscsi_request { /* + * The size of the vmscsi_request has changed in win8. The + * additional size is because of new elements added to the + * structure. These elements are valid only when we are talking + * to a win8 host. + * Track the correction to size we need to apply. This value + * will likely change during protocol negotiation but it is + * valid to start by assuming pre-Win8. + */ +static int vmscsi_size_delta = sizeof(struct vmscsi_win8_extension); + +/* + * The list of storage protocols in order of preference. + */ +struct vmstor_protocol { + int protocol_version; + int sense_buffer_size; + int vmscsi_size_delta; +}; + + +static const struct vmstor_protocol vmstor_protocols[] = { + { + VMSTOR_PROTO_VERSION_WIN10, + POST_WIN7_STORVSC_SENSE_BUFFER_SIZE, + 0 + }, + { + VMSTOR_PROTO_VERSION_WIN8_1, + POST_WIN7_STORVSC_SENSE_BUFFER_SIZE, + 0 + }, + { + VMSTOR_PROTO_VERSION_WIN8, + POST_WIN7_STORVSC_SENSE_BUFFER_SIZE, + 0 + }, + { + VMSTOR_PROTO_VERSION_WIN7, + PRE_WIN8_STORVSC_SENSE_BUFFER_SIZE, + sizeof(struct vmscsi_win8_extension), + }, + { + VMSTOR_PROTO_VERSION_WIN6, + PRE_WIN8_STORVSC_SENSE_BUFFER_SIZE, + sizeof(struct vmscsi_win8_extension), + } +}; + + +/* * This structure is sent during the intialization phase to get the different * properties of the channel. */ @@ -426,7 +476,6 @@ static void storvsc_host_scan(struct work_struct *work) struct storvsc_scan_work *wrk; struct Scsi_Host *host; struct scsi_device *sdev; - unsigned long flags; wrk = container_of(work, struct storvsc_scan_work, work); host = wrk->host; @@ -443,14 +492,8 @@ static void storvsc_host_scan(struct work_struct *work) * may have been removed this way. */ mutex_lock(&host->scan_mutex); - spin_lock_irqsave(host->host_lock, flags); - list_for_each_entry(sdev, &host->__devices, siblings) { - spin_unlock_irqrestore(host->host_lock, flags); + shost_for_each_device(sdev, host) scsi_test_unit_ready(sdev, 1, 1, NULL); - spin_lock_irqsave(host->host_lock, flags); - continue; - } - spin_unlock_irqrestore(host->host_lock, flags); mutex_unlock(&host->scan_mutex); /* * Now scan the host to discover LUNs that may have been added. @@ -481,18 +524,6 @@ done: kfree(wrk); } -/* - * Major/minor macros. Minor version is in LSB, meaning that earlier flat - * version numbers will be interpreted as "0.x" (i.e., 1 becomes 0.1). - */ - -static inline u16 storvsc_get_version(u8 major, u8 minor) -{ - u16 version; - - version = ((major << 8) | minor); - return version; -} /* * We can get incoming messages from the host that are not in response to @@ -885,7 +916,7 @@ static int storvsc_channel_init(struct hv_device *device) struct storvsc_device *stor_device; struct storvsc_cmd_request *request; struct vstor_packet *vstor_packet; - int ret, t; + int ret, t, i; int max_chns; bool process_sub_channels = false; @@ -921,41 +952,65 @@ static int storvsc_channel_init(struct hv_device *device) } if (vstor_packet->operation != VSTOR_OPERATION_COMPLETE_IO || - vstor_packet->status != 0) + vstor_packet->status != 0) { + ret = -EINVAL; goto cleanup; + } - /* reuse the packet for version range supported */ - memset(vstor_packet, 0, sizeof(struct vstor_packet)); - vstor_packet->operation = VSTOR_OPERATION_QUERY_PROTOCOL_VERSION; - vstor_packet->flags = REQUEST_COMPLETION_FLAG; + for (i = 0; i < ARRAY_SIZE(vmstor_protocols); i++) { + /* reuse the packet for version range supported */ + memset(vstor_packet, 0, sizeof(struct vstor_packet)); + vstor_packet->operation = + VSTOR_OPERATION_QUERY_PROTOCOL_VERSION; + vstor_packet->flags = REQUEST_COMPLETION_FLAG; - vstor_packet->version.major_minor = - storvsc_get_version(vmstor_current_major, vmstor_current_minor); + vstor_packet->version.major_minor = + vmstor_protocols[i].protocol_version; - /* - * The revision number is only used in Windows; set it to 0. - */ - vstor_packet->version.revision = 0; + /* + * The revision number is only used in Windows; set it to 0. + */ + vstor_packet->version.revision = 0; - ret = vmbus_sendpacket(device->channel, vstor_packet, + ret = vmbus_sendpacket(device->channel, vstor_packet, (sizeof(struct vstor_packet) - vmscsi_size_delta), (unsigned long)request, VM_PKT_DATA_INBAND, VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED); - if (ret != 0) - goto cleanup; + if (ret != 0) + goto cleanup; - t = wait_for_completion_timeout(&request->wait_event, 5*HZ); - if (t == 0) { - ret = -ETIMEDOUT; - goto cleanup; + t = wait_for_completion_timeout(&request->wait_event, 5*HZ); + if (t == 0) { + ret = -ETIMEDOUT; + goto cleanup; + } + + if (vstor_packet->operation != VSTOR_OPERATION_COMPLETE_IO) { + ret = -EINVAL; + goto cleanup; + } + + if (vstor_packet->status == 0) { + vmstor_proto_version = + vmstor_protocols[i].protocol_version; + + sense_buffer_size = + vmstor_protocols[i].sense_buffer_size; + + vmscsi_size_delta = + vmstor_protocols[i].vmscsi_size_delta; + + break; + } } - if (vstor_packet->operation != VSTOR_OPERATION_COMPLETE_IO || - vstor_packet->status != 0) + if (vstor_packet->status != 0) { + ret = -EINVAL; goto cleanup; + } memset(vstor_packet, 0, sizeof(struct vstor_packet)); @@ -979,8 +1034,10 @@ static int storvsc_channel_init(struct hv_device *device) } if (vstor_packet->operation != VSTOR_OPERATION_COMPLETE_IO || - vstor_packet->status != 0) + vstor_packet->status != 0) { + ret = -EINVAL; goto cleanup; + } /* * Check to see if multi-channel support is there. @@ -988,8 +1045,7 @@ static int storvsc_channel_init(struct hv_device *device) * support multi-channel. */ max_chns = vstor_packet->storage_channel_properties.max_channel_cnt; - if ((vmbus_proto_version != VERSION_WIN7) && - (vmbus_proto_version != VERSION_WS2008)) { + if (vmstor_proto_version >= VMSTOR_PROTO_VERSION_WIN8) { if (vstor_packet->storage_channel_properties.flags & STORAGE_CHANNEL_SUPPORTS_MULTI_CHANNEL) process_sub_channels = true; @@ -1018,8 +1074,10 @@ static int storvsc_channel_init(struct hv_device *device) } if (vstor_packet->operation != VSTOR_OPERATION_COMPLETE_IO || - vstor_packet->status != 0) + vstor_packet->status != 0) { + ret = -EINVAL; goto cleanup; + } if (process_sub_channels) handle_multichannel_storage(device, max_chns); @@ -1428,15 +1486,19 @@ static int storvsc_device_configure(struct scsi_device *sdevice) /* * If the host is WIN8 or WIN8 R2, claim conformance to SPC-3 - * if the device is a MSFT virtual device. + * if the device is a MSFT virtual device. If the host is + * WIN10 or newer, allow write_same. */ if (!strncmp(sdevice->vendor, "Msft", 4)) { - switch (vmbus_proto_version) { - case VERSION_WIN8: - case VERSION_WIN8_1: + switch (vmstor_proto_version) { + case VMSTOR_PROTO_VERSION_WIN8: + case VMSTOR_PROTO_VERSION_WIN8_1: sdevice->scsi_level = SCSI_SPC_3; break; } + + if (vmstor_proto_version >= VMSTOR_PROTO_VERSION_WIN10) + sdevice->no_write_same = 0; } return 0; @@ -1563,7 +1625,7 @@ static int storvsc_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *scmnd) u32 payload_sz; u32 length; - if (vmstor_current_major <= VMSTOR_WIN8_MAJOR) { + if (vmstor_proto_version <= VMSTOR_PROTO_VERSION_WIN8) { /* * On legacy hosts filter unimplemented commands. * Future hosts are expected to correctly handle @@ -1598,10 +1660,18 @@ static int storvsc_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *scmnd) vm_srb->data_in = READ_TYPE; vm_srb->win8_extension.srb_flags |= SRB_FLAGS_DATA_IN; break; - default: + case DMA_NONE: vm_srb->data_in = UNKNOWN_TYPE; vm_srb->win8_extension.srb_flags |= SRB_FLAGS_NO_DATA_TRANSFER; break; + default: + /* + * This is DMA_BIDIRECTIONAL or something else we are never + * supposed to see here. + */ + WARN(1, "Unexpected data direction: %d\n", + scmnd->sc_data_direction); + return -EINVAL; } @@ -1758,22 +1828,11 @@ static int storvsc_probe(struct hv_device *device, * set state to properly communicate with the host. */ - switch (vmbus_proto_version) { - case VERSION_WS2008: - case VERSION_WIN7: - sense_buffer_size = PRE_WIN8_STORVSC_SENSE_BUFFER_SIZE; - vmscsi_size_delta = sizeof(struct vmscsi_win8_extension); - vmstor_current_major = VMSTOR_WIN7_MAJOR; - vmstor_current_minor = VMSTOR_WIN7_MINOR; + if (vmbus_proto_version < VERSION_WIN8) { max_luns_per_target = STORVSC_IDE_MAX_LUNS_PER_TARGET; max_targets = STORVSC_IDE_MAX_TARGETS; max_channels = STORVSC_IDE_MAX_CHANNELS; - break; - default: - sense_buffer_size = POST_WIN7_STORVSC_SENSE_BUFFER_SIZE; - vmscsi_size_delta = 0; - vmstor_current_major = VMSTOR_WIN8_MAJOR; - vmstor_current_minor = VMSTOR_WIN8_MINOR; + } else { max_luns_per_target = STORVSC_MAX_LUNS_PER_TARGET; max_targets = STORVSC_MAX_TARGETS; max_channels = STORVSC_MAX_CHANNELS; @@ -1783,7 +1842,6 @@ static int storvsc_probe(struct hv_device *device, * VCPUs in the guest. */ max_sub_channels = (num_cpus / storvsc_vcpus_per_sub_channel); - break; } scsi_driver.can_queue = (max_outstanding_req_per_channel * diff --git a/drivers/scsi/sun3x_esp.c b/drivers/scsi/sun3x_esp.c index e26e81de7c45..d50c5ed8f428 100644 --- a/drivers/scsi/sun3x_esp.c +++ b/drivers/scsi/sun3x_esp.c @@ -12,9 +12,9 @@ #include <linux/platform_device.h> #include <linux/dma-mapping.h> #include <linux/interrupt.h> +#include <linux/io.h> #include <asm/sun3x.h> -#include <asm/io.h> #include <asm/dma.h> #include <asm/dvma.h> diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c index 285f77544c36..7dbbb29d24c6 100644 --- a/drivers/scsi/virtio_scsi.c +++ b/drivers/scsi/virtio_scsi.c @@ -949,7 +949,7 @@ static int virtscsi_probe(struct virtio_device *vdev) { struct Scsi_Host *shost; struct virtio_scsi *vscsi; - int err, host_prot; + int err; u32 sg_elems, num_targets; u32 cmd_per_lun; u32 num_queues; @@ -1009,6 +1009,8 @@ static int virtscsi_probe(struct virtio_device *vdev) #ifdef CONFIG_BLK_DEV_INTEGRITY if (virtio_has_feature(vdev, VIRTIO_SCSI_F_T10_PI)) { + int host_prot; + host_prot = SHOST_DIF_TYPE1_PROTECTION | SHOST_DIF_TYPE2_PROTECTION | SHOST_DIF_TYPE3_PROTECTION | SHOST_DIX_TYPE1_PROTECTION | SHOST_DIX_TYPE2_PROTECTION | SHOST_DIX_TYPE3_PROTECTION; diff --git a/drivers/scsi/wd719x.c b/drivers/scsi/wd719x.c index 61346aa73178..e3da1a2fdb66 100644 --- a/drivers/scsi/wd719x.c +++ b/drivers/scsi/wd719x.c @@ -590,7 +590,7 @@ static inline void wd719x_interrupt_SCB(struct wd719x *wd, dev_dbg(&wd->pdev->dev, "selection timeout\n"); break; case WD719X_SUE_RESET: - dev_dbg(&wd->pdev->dev, "bus reset occured\n"); + dev_dbg(&wd->pdev->dev, "bus reset occurred\n"); result = DID_RESET; break; case WD719X_SUE_BUSERROR: diff --git a/drivers/scsi/xen-scsifront.c b/drivers/scsi/xen-scsifront.c index fad22caf0eff..9dc8687bf048 100644 --- a/drivers/scsi/xen-scsifront.c +++ b/drivers/scsi/xen-scsifront.c @@ -377,7 +377,6 @@ static int map_data_for_request(struct vscsifrnt_info *info, unsigned int data_len = scsi_bufflen(sc); unsigned int data_grants = 0, seg_grants = 0; struct scatterlist *sg; - unsigned long mfn; struct scsiif_request_segment *seg; ring_req->nr_segments = 0; @@ -420,9 +419,9 @@ static int map_data_for_request(struct vscsifrnt_info *info, ref = gnttab_claim_grant_reference(&gref_head); BUG_ON(ref == -ENOSPC); - mfn = pfn_to_mfn(page_to_pfn(page)); gnttab_grant_foreign_access_ref(ref, - info->dev->otherend_id, mfn, 1); + info->dev->otherend_id, + xen_page_to_gfn(page), 1); shadow->gref[ref_cnt] = ref; ring_req->seg[ref_cnt].gref = ref; ring_req->seg[ref_cnt].offset = (uint16_t)off; @@ -454,9 +453,10 @@ static int map_data_for_request(struct vscsifrnt_info *info, ref = gnttab_claim_grant_reference(&gref_head); BUG_ON(ref == -ENOSPC); - mfn = pfn_to_mfn(page_to_pfn(page)); gnttab_grant_foreign_access_ref(ref, - info->dev->otherend_id, mfn, grant_ro); + info->dev->otherend_id, + xen_page_to_gfn(page), + grant_ro); shadow->gref[ref_cnt] = ref; seg->gref = ref; |
