/* * Marvell 88SE64xx/88SE94xx main function head file * * Copyright 2007 Red Hat, Inc. * Copyright 2008 Marvell. <kewei@marvell.com> * * This file is licensed under GPLv2. * * 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; version 2 of the * License. * * 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 */ #ifndef _MV_SAS_H_ #define _MV_SAS_H_ #include <linux/kernel.h> #include <linux/module.h> #include <linux/spinlock.h> #include <linux/delay.h> #include <linux/types.h> #include <linux/ctype.h> #include <linux/dma-mapping.h> #include <linux/pci.h> #include <linux/platform_device.h> #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/slab.h> #include <linux/vmalloc.h> #include <scsi/libsas.h> #include <scsi/scsi_tcq.h> #include <scsi/sas_ata.h> #include <linux/version.h> #include "mv_defs.h" #define DRV_NAME "mvsas" #define DRV_VERSION "0.8.2" #define _MV_DUMP 0 #define MVS_ID_NOT_MAPPED 0x7f /* #define DISABLE_HOTPLUG_DMA_FIX */ #define MAX_EXP_RUNNING_REQ 2 #define WIDE_PORT_MAX_PHY 4 #define MV_DISABLE_NCQ 0 #define mv_printk(fmt, arg ...) \ printk(KERN_DEBUG"%s %d:" fmt, __FILE__, __LINE__, ## arg) #ifdef MV_DEBUG #define mv_dprintk(format, arg...) \ printk(KERN_DEBUG"%s %d:" format, __FILE__, __LINE__, ## arg) #else #define mv_dprintk(format, arg...) #endif #define MV_MAX_U32 0xffffffff extern struct mvs_tgt_initiator mvs_tgt; extern struct mvs_info *tgt_mvi; extern const struct mvs_dispatch mvs_64xx_dispatch; extern const struct mvs_dispatch mvs_94xx_dispatch; #define DEV_IS_EXPANDER(type) \ ((type == EDGE_DEV) || (type == FANOUT_DEV)) #define bit(n) ((u32)1 << n) #define for_each_phy(__lseq_mask, __mc, __lseq) \ for ((__mc) = (__lseq_mask), (__lseq) = 0; \ (__mc) != 0 ; \ (++__lseq), (__mc) >>= 1) #define MV_INIT_DELAYED_WORK(w, f, d) INIT_DELAYED_WORK(w, f) #define UNASSOC_D2H_FIS(id) \ ((void *) mvi->rx_fis + 0x100 * id) #define SATA_RECEIVED_FIS_LIST(reg_set) \ ((void *) mvi->rx_fis + mvi->chip->fis_offs + 0x100 * reg_set) #define SATA_RECEIVED_SDB_FIS(reg_set) \ (SATA_RECEIVED_FIS_LIST(reg_set) + 0x58) #define SATA_RECEIVED_D2H_FIS(reg_set) \ (SATA_RECEIVED_FIS_LIST(reg_set) + 0x40) #define SATA_RECEIVED_PIO_FIS(reg_set) \ (SATA_RECEIVED_FIS_LIST(reg_set) + 0x20) #define SATA_RECEIVED_DMA_FIS(reg_set) \ (SATA_RECEIVED_FIS_LIST(reg_set) + 0x00) enum dev_status { MVS_DEV_NORMAL = 0x0, MVS_DEV_EH = 0x1, }; struct mvs_info; struct mvs_dispatch { char *name; int (*chip_init)(struct mvs_info *mvi); int (*spi_init)(struct mvs_info *mvi); int (*chip_ioremap)(struct mvs_info *mvi); void (*chip_iounmap)(struct mvs_info *mvi); irqreturn_t (*isr)(struct mvs_info *mvi, int irq, u32 stat); u32 (*isr_status)(struct mvs_info *mvi, int irq); void (*interrupt_enable)(struct mvs_info *mvi); void (*interrupt_disable)(struct mvs_info *mvi); u32 (*read_phy_ctl)(struct mvs_info *mvi, u32 port); void (*write_phy_ctl)(struct mvs_info *mvi, u32 port, u32 val); u32 (*read_port_cfg_data)(struct mvs_info *mvi, u32 port); void (*write_port_cfg_data)(struct mvs_info *mvi, u32 port, u32 val); void (*write_port_cfg_addr)(struct mvs_info *mvi, u32 port, u32 addr); u32 (*read_port_vsr_data)(struct mvs_info *mvi, u32 port); void (*write_port_vsr_data)(struct mvs_info *mvi, u32 port, u32 val); void (*write_port_vsr_addr)(struct mvs_info *mvi, u32 port, u32 addr); u32 (*read_port_irq_stat)(struct mvs_info *mvi, u32 port); void (*write_port_irq_stat)(struct mvs_info *mvi, u32 port, u32 val); u32 (*read_port_irq_mask)(struct mvs_info *mvi, u32 port); void (*write_port_irq_mask)(struct mvs_info *mvi, u32 port, u32 val); void (*get_sas_addr)(void *buf, u32 buflen); void (*command_active)(struct mvs_info *mvi, u32 slot_idx); void (*issue_stop)(struct mvs_info *mvi, enum mvs_port_type type, u32 tfs); void (*start_delivery)(struct mvs_info *mvi, u32 tx); u32 (*rx_update)(struct mvs_info *mvi); void (*int_full)(struct mvs_info *mvi); u8 (*assign_reg_set)(struct mvs_info *mvi, u8 *tfs); void (*free_reg_set)(struct mvs_info *mvi, u8 *tfs); u32 (*prd_size)(void); u32 (*prd_count)(void); void (*make_prd)(struct scatterlist *scatter, int nr, void *prd); void (*detect_porttype)(struct mvs_info *mvi, int i); int (*oob_done)(struct mvs_info *mvi, int i); void (*fix_phy_info)(struct mvs_info *mvi, int i, struct sas_identify_frame *id); void (*phy_work_around)(struct mvs_info *mvi, int i); void (*phy_set_link_rate)(struct mvs_info *mvi, u32 phy_id, struct sas_phy_linkrates *rates); u32 (*phy_max_link_rate)(void); void (*phy_disable)(struct mvs_info *mvi, u32 phy_id); void (*phy_enable)(struct mvs_info *mvi, u32 phy_id); void (*phy_reset)(struct mvs_info *mvi, u32 phy_id, int hard); void (*stp_reset)(struct mvs_info *mvi, u32 phy_id); void (*clear_active_cmds)(struct mvs_info *mvi); u32 (*spi_read_data)(struct mvs_info *mvi); void (*spi_write_data)(struct mvs_info *mvi, u32 data); int (*spi_buildcmd)(struct mvs_info *mvi, u32 *dwCmd, u8 cmd, u8 read, u8 length, u32 addr ); int (*spi_issuecmd)(struct mvs_info *mvi, u32 cmd); int (*spi_waitdataready)(struct mvs_info *mvi, u32 timeout); #ifndef DISABLE_HOTPLUG_DMA_FIX void (*dma_fix)(dma_addr_t buf_dma, int buf_len, int from, void *prd); #endif }; struct mvs_chip_info { u32 n_host; u32 n_phy; u32 fis_offs; u32 fis_count; u32 srs_sz; u32 slot_width; const struct mvs_dispatch *dispatch; }; #define MVS_CHIP_SLOT_SZ (1U << mvi->chip->slot_width) #define MVS_RX_FISL_SZ \ (mvi->chip->fis_offs + (mvi->chip->fis_count * 0x100)) #define MVS_CHIP_DISP (mvi->chip->dispatch) struct mvs_err_info { __le32 flags; __le32 flags2; }; struct mvs_cmd_hdr { __le32 flags; /* PRD tbl len; SAS, SATA ctl */ __le32 lens; /* cmd, max resp frame len */ __le32 tags; /* targ port xfer tag; tag */ __le32 data_len; /* data xfer len */ __le64 cmd_tbl; /* command table address */ __le64 open_frame; /* open addr frame address */ __le64 status_buf; /* status buffer address */ __le64 prd_tbl; /* PRD tbl address */ __le32 reserved[4]; }; struct mvs_port { struct asd_sas_port sas_port; u8 port_attached; u8 wide_port_phymap; struct list_head list; }; struct mvs_phy { struct mvs_info *mvi; struct mvs_port *port; struct asd_sas_phy sas_phy; struct sas_identify identify; struct scsi_device *sdev; struct timer_list timer; u64 dev_sas_addr; u64 att_dev_sas_addr; u32 att_dev_info; u32 dev_info; u32 phy_type; u32 phy_status; u32 irq_status; u32 frame_rcvd_size; u8 frame_rcvd[32]; u8 phy_attached; u8 phy_mode; u8 reserved[2]; u32 phy_event; enum sas_linkrate minimum_linkrate; enum sas_linkrate maximum_linkrate; }; struct mvs_device { struct list_head dev_entry; enum sas_dev_type dev_type; struct mvs_info *mvi_info; struct domain_device *sas_device; u32 attached_phy; u32 device_id; u32 runing_req; u8 taskfileset; u8 dev_status; u16 reserved; }; struct mvs_slot_info { struct list_head entry; union { struct sas_task *task; void *tdata; }; u32 n_elem; u32 tx; u32 slot_tag; /* DMA buffer for storing cmd tbl, open addr frame, status buffer, * and PRD table */ void *buf; dma_addr_t buf_dma; #if _MV_DUMP u32 cmd_size; #endif void *response; struct mvs_port *port; struct mvs_device *device; void *open_frame; }; struct mvs_info { unsigned long flags; /* host-wide lock */ spinlock_t lock; /* our device */ struct pci_dev *pdev; struct device *dev; /* enhanced mode registers */ void __iomem *regs; /* peripheral or soc registers */ void __iomem *regs_ex; u8 sas_addr[SAS_ADDR_SIZE]; /* SCSI/SAS glue */ struct sas_ha_struct *sas; struct Scsi_Host *shost; /* TX (delivery) DMA ring */ __le32 *tx; dma_addr_t tx_dma; /* cached next-producer idx */ u32 tx_prod; /* RX (completion) DMA ring */ __le32 *rx; dma_addr_t rx_dma; /* RX consumer idx */ u32 rx_cons; /* RX'd FIS area */ __le32 *rx_fis; dma_addr_t rx_fis_dma; /* DMA command header slots */ struct mvs_cmd_hdr *slot; dma_addr_t slot_dma; u32 chip_id; const struct mvs_chip_info *chip; int tags_num; DECLARE_BITMAP(tags, MVS_SLOTS); /* further per-slot information */ struct mvs_phy phy[MVS_MAX_PHYS]; struct mvs_port port[MVS_MAX_PHYS]; u32 irq; u32 exp_req; u32 id; u64 sata_reg_set; struct list_head *hba_list; struct list_head soc_entry; struct list_head wq_list; unsigned long instance; u16 flashid; u32 flashsize; u32 flashsectSize; void *addon; struct mvs_device devices[MVS_MAX_DEVICES]; #ifndef DISABLE_HOTPLUG_DMA_FIX void *bulk_buffer; dma_addr_t bulk_buffer_dma; #define TRASH_BUCKET_SIZE 0x20000 #endif struct mvs_slot_info slot_info[0]; }; struct mvs_prv_info{ u8 n_host; u8 n_phy; u16 reserve; struct mvs_info *mvi[2]; }; struct mvs_wq { struct delayed_work work_q; struct mvs_info *mvi; void *data; int handler; struct list_head entry; }; struct mvs_task_exec_info { struct sas_task *task; struct mvs_cmd_hdr *hdr; struct mvs_port *port; u32 tag; int n_elem; }; /******************** function prototype *********************/ void mvs_get_sas_addr(void *buf, u32 buflen); void mvs_tag_clear(struct mvs_info *mvi, u32 tag); void mvs_tag_free(struct mvs_info *mvi, u32 tag); void mvs_tag_set(struct mvs_info *mvi, unsigned int tag); int mvs_tag_alloc(struct mvs_info *mvi, u32 *tag_out); void mvs_tag_init(struct mvs_info *mvi); void mvs_iounmap(void __iomem *regs); int mvs_ioremap(struct mvs_info *mvi, int bar, int bar_ex); void mvs_phys_reset(struct mvs_info *mvi, u32 phy_mask, int hard); int mvs_phy_control(struct asd_sas_phy *sas_phy, enum phy_func func, void *funcdata); void __devinit mvs_set_sas_addr(struct mvs_info *mvi, int port_id, u32 off_lo, u32 off_hi, u64 sas_addr); int mvs_slave_alloc(struct scsi_device *scsi_dev); int mvs_slave_configure(struct scsi_device *sdev); void mvs_scan_start(struct Scsi_Host *shost); int mvs_scan_finished(struct Scsi_Host *shost, unsigned long time); int mvs_queue_command(struct sas_task *task, const int num, gfp_t gfp_flags); int mvs_abort_task(struct sas_task *task); int mvs_abort_task_set(struct domain_device *dev, u8 *lun); int mvs_clear_aca(struct domain_device *dev, u8 *lun); int mvs_clear_task_set(struct domain_device *dev, u8 * lun); void mvs_port_formed(struct asd_sas_phy *sas_phy); void mvs_port_deformed(struct asd_sas_phy *sas_phy); int mvs_dev_found(struct domain_device *dev); void mvs_dev_gone(struct domain_device *dev); int mvs_lu_reset(struct domain_device *dev, u8 *lun); int mvs_slot_complete(struct mvs_info *mvi, u32 rx_desc, u32 flags); int mvs_I_T_nexus_reset(struct domain_device *dev); int mvs_query_task(struct sas_task *task); void mvs_release_task(struct mvs_info *mvi, int phy_no, struct domain_device *dev); void mvs_int_port(struct mvs_info *mvi, int phy_no, u32 events); void mvs_update_phyinfo(struct mvs_info *mvi, int i, int get_st); int mvs_int_rx(struct mvs_info *mvi, bool self_clear); void mvs_hexdump(u32 size, u8 *data, u32 baseaddr); #endif