/* * QLogic Fibre Channel HBA Driver * Copyright (c) 2003-2008 QLogic Corporation * * See LICENSE.qla2xxx for copyright and licensing details. */ #include "qla_def.h" #include #include #include #include #include #include #include #include /* * Driver version */ char qla2x00_version_str[40]; /* * SRB allocation cache */ static struct kmem_cache *srb_cachep; /* * Ioctl related information. */ int num_hosts; int ql2xlogintimeout = 20; module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR); MODULE_PARM_DESC(ql2xlogintimeout, "Login timeout value in seconds."); int qlport_down_retry; module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR); MODULE_PARM_DESC(qlport_down_retry, "Maximum number of command retries to a port that returns " "a PORT-DOWN status."); int ql2xplogiabsentdevice; module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(ql2xplogiabsentdevice, "Option to enable PLOGI to devices that are not present after " "a Fabric scan. This is needed for several broken switches. " "Default is 0 - no PLOGI. 1 - perfom PLOGI."); int ql2xloginretrycount = 0; module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR); MODULE_PARM_DESC(ql2xloginretrycount, "Specify an alternate value for the NVRAM login retry count."); int ql2xallocfwdump = 1; module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR); MODULE_PARM_DESC(ql2xallocfwdump, "Option to enable allocation of memory for a firmware dump " "during HBA initialization. Memory allocation requirements " "vary by ISP type. Default is 1 - allocate memory."); int ql2xextended_error_logging; module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(ql2xextended_error_logging, "Option to enable extended error logging, " "Default is 0 - no logging. 1 - log errors."); static void qla2x00_free_device(scsi_qla_host_t *); static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha); int ql2xfdmienable; module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR); MODULE_PARM_DESC(ql2xfdmienable, "Enables FDMI registratons " "Default is 0 - no FDMI. 1 - perfom FDMI."); #define MAX_Q_DEPTH 32 static int ql2xmaxqdepth = MAX_Q_DEPTH; module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(ql2xmaxqdepth, "Maximum queue depth to report for target devices."); int ql2xqfullrampup = 120; module_param(ql2xqfullrampup, int, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(ql2xqfullrampup, "Number of seconds to wait to begin to ramp-up the queue " "depth for a device after a queue-full condition has been " "detected. Default is 120 seconds."); /* * SCSI host template entry points */ static int qla2xxx_slave_configure(struct scsi_device * device); static int qla2xxx_slave_alloc(struct scsi_device *); static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time); static void qla2xxx_scan_start(struct Scsi_Host *); static void qla2xxx_slave_destroy(struct scsi_device *); static int qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*fn)(struct scsi_cmnd *)); static int qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*fn)(struct scsi_cmnd *)); static int qla2xxx_eh_abort(struct scsi_cmnd *); static int qla2xxx_eh_device_reset(struct scsi_cmnd *); static int qla2xxx_eh_bus_reset(struct scsi_cmnd *); static int qla2xxx_eh_host_reset(struct scsi_cmnd *); static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *); static int qla2x00_change_queue_depth(struct scsi_device *, int); static int qla2x00_change_queue_type(struct scsi_device *, int); static struct scsi_host_template qla2x00_driver_template = { .module = THIS_MODULE, .name = QLA2XXX_DRIVER_NAME, .queuecommand = qla2x00_queuecommand, .eh_abort_handler = qla2xxx_eh_abort, .eh_device_reset_handler = qla2xxx_eh_device_reset, .eh_bus_reset_handler = qla2xxx_eh_bus_reset, .eh_host_reset_handler = qla2xxx_eh_host_reset, .slave_configure = qla2xxx_slave_configure, .slave_alloc = qla2xxx_slave_alloc, .slave_destroy = qla2xxx_slave_destroy, .scan_finished = qla2xxx_scan_finished, .scan_start = qla2xxx_scan_start, .change_queue_depth = qla2x00_change_queue_depth, .change_queue_type = qla2x00_change_queue_type, .this_id = -1, .cmd_per_lun = 3, .use_clustering = ENABLE_CLUSTERING, .sg_tablesize = SG_ALL, /* * The RISC allows for each command to transfer (2^32-1) bytes of data, * which equates to 0x800000 sectors. */ .max_sectors = 0xFFFF, .shost_attrs = qla2x00_host_attrs, }; struct scsi_host_template qla24xx_driver_template = { .module = THIS_MODULE, .name = QLA2XXX_DRIVER_NAME, .queuecommand = qla24xx_queuecommand, .eh_abort_handler = qla2xxx_eh_abort, .eh_device_reset_handler = qla2xxx_eh_device_reset, .eh_bus_reset_handler = qla2xxx_eh_bus_reset, .eh_host_reset_handler = qla2xxx_eh_host_reset, .slave_configure = qla2xxx_slave_configure, .slave_alloc = qla2xxx_slave_alloc, .slave_destroy = qla2xxx_slave_destroy, .scan_finished = qla2xxx_scan_finished, .scan_start = qla2xxx_scan_start, .change_queue_depth = qla2x00_change_queue_depth, .change_queue_type = qla2x00_change_queue_type, .this_id = -1, .cmd_per_lun = 3, .use_clustering = ENABLE_CLUSTERING, .sg_tablesize = SG_ALL, .max_sectors = 0xFFFF, .shost_attrs = qla2x00_host_attrs, }; static struct scsi_transport_template *qla2xxx_transport_template = NULL; struct scsi_transport_template *qla2xxx_transport_vport_template = NULL; /* TODO Convert to inlines * * Timer routines */ __inline__ void qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval) { init_timer(&ha->timer); ha->timer.expires = jiffies + interval * HZ; ha->timer.data = (unsigned long)ha; ha->timer.function = (void (*)(unsigned long))func; add_timer(&ha->timer); ha->timer_active = 1; } static inline void qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval) { mod_timer(&ha->timer, jiffies + interval * HZ); } static __inline__ void qla2x00_stop_timer(scsi_qla_host_t *ha) { del_timer_sync(&ha->timer); ha->timer_active = 0; } static int qla2x00_do_dpc(void *data); static void qla2x00_rst_aen(scsi_qla_host_t *); static int qla2x00_mem_alloc(scsi_qla_host_t *); static void qla2x00_mem_free(scsi_qla_host_t *ha); static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *); /* -------------------------------------------------------------------------- */ static char * qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str) { static char *pci_bus_modes[] = { "33", "66", "100", "133", }; uint16_t pci_bus; strcpy(str, "PCI"); pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9; if (pci_bus) { strcat(str, "-X ("); strcat(str, pci_bus_modes[pci_bus]); } else { pci_bus = (ha->pci_attr & BIT_8) >> 8; strcat(str, " ("); strcat(str, pci_bus_modes[pci_bus]); } strcat(str, " MHz)"); return (str); } static char * qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str) { static char *pci_bus_modes[] = { "33", "66", "100", "133", }; uint32_t pci_bus; int pcie_reg; pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP); if (pcie_reg) { char lwstr[6]; uint16_t pcie_lstat, lspeed, lwidth; pcie_reg += 0x12; pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat); lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3); lwidth = (pcie_lstat & (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4; strcpy(str, "PCIe ("); if (lspeed == 1) strcat(str, "2.5Gb/s "); else if (lspeed == 2) strcat(str, "5.0Gb/s "); else strcat(str, " "); snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth); strcat(str, lwstr); return str; } strcpy(str, "PCI"); pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8; if (pci_bus == 0 || pci_bus == 8) { strcat(str, " ("); strcat(str, pci_bus_modes[pci_bus >> 3]); } else { strcat(str, "-X "); if (pci_bus & BIT_2) strcat(str, "Mode 2"); else strcat(str, "Mode 1"); strcat(str, " ("); strcat(str, pci_bus_modes[pci_bus & ~BIT_2]); } strcat(str, " MHz)"); return str; } static char * qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str) { char un_str[10]; sprintf(str, "%d.%02d.%02d ", ha->fw_major_version, ha->fw_minor_version, ha->fw_subminor_version); if (ha->fw_attributes & BIT_9) { strcat(str, "FLX"); return (str); } switch (ha->fw_attributes & 0xFF) { case 0x7: strcat(str, "EF"); break; case 0x17: strcat(str, "TP"); break; case 0x37: strcat(str, "IP"); break; case 0x77: strcat(str, "VI"); break; default: sprintf(un_str, "(%x)", ha->fw_attributes); strcat(str, un_str); break; } if (ha->fw_attributes & 0x100) strcat(str, "X"); return (str); } static char * qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str) { sprintf(str, "%d.%02d.%02d ", ha->fw_major_version, ha->fw_minor_version, ha->fw_subminor_version); if (ha->fw_attributes & BIT_0) strcat(str, "[Class 2] "); if (ha->fw_attributes & BIT_1) strcat(str, "[IP] "); if (ha->fw_attributes & BIT_2) strcat(str, "[Multi-ID] "); if (ha->fw_attributes & BIT_3) strcat(str, "[SB-2] "); if (ha->fw_attributes & BIT_4) strcat(str, "[T10 CRC] "); if (ha->fw_attributes & BIT_5) strcat(str, "[VI] "); if (ha->fw_attributes & BIT_13) strcat(str, "[Experimental]"); return str; } static inline srb_t * qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport, struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) { srb_t *sp; sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC); if (!sp) return sp; sp->ha = ha; sp->fcport = fcport; sp->cmd = cmd; sp->flags = 0; CMD_SP(cmd) = (void *)sp; cmd->scsi_done = done; return sp; } static int qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) { scsi_qla_host_t *ha = shost_priv(cmd->device->host); fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device)); srb_t *sp; int rval; if (unlikely(pci_channel_offline(ha->pdev))) { cmd->result = DID_REQUEUE << 16; goto qc_fail_command; } rval = fc_remote_port_chkready(rport); if (rval) { cmd->result = rval; goto qc_fail_command; } /* Close window on fcport/rport state-transitioning. */ if (!*(fc_port_t **)rport->dd_data) { cmd->result = DID_IMM_RETRY << 16; goto qc_fail_command; } if (atomic_read(&fcport->state) != FCS_ONLINE) { if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD || atomic_read(&ha->loop_state) == LOOP_DEAD) { cmd->result = DID_NO_CONNECT << 16; goto qc_fail_command; } goto qc_host_busy; } spin_unlock_irq(ha->host->host_lock); sp = qla2x00_get_new_sp(ha, fcport, cmd, done); if (!sp) goto qc_host_busy_lock; rval = qla2x00_start_scsi(sp); if (rval != QLA_SUCCESS) goto qc_host_busy_free_sp; spin_lock_irq(ha->host->host_lock); return 0; qc_host_busy_free_sp: qla2x00_sp_free_dma(ha, sp); mempool_free(sp, ha->srb_mempool); qc_host_busy_lock: spin_lock_irq(ha->host->host_lock); qc_host_busy: return SCSI_MLQUEUE_HOST_BUSY; qc_fail_command: done(cmd); return 0; } static int qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) { scsi_qla_host_t *ha = shost_priv(cmd->device->host); fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device)); srb_t *sp; int rval; scsi_qla_host_t *pha = to_qla_parent(ha); if (unlikely(pci_channel_offline(ha->pdev))) { cmd->result = DID_REQUEUE << 16; goto qc24_fail_command; } rval = fc_remote_port_chkready(rport); if (rval) { cmd->result = rval; goto qc24_fail_command; } /* Close window on fcport/rport state-transitioning. */ if (!*(fc_port_t **)rport->dd_data) { cmd->result = DID_IMM_RETRY << 16; goto qc24_fail_command; } if (atomic_read(&fcport->state) != FCS_ONLINE) { if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD || atomic_read(&pha->loop_state) == LOOP_DEAD) { cmd->result = DID_NO_CONNECT << 16; goto qc24_fail_command; } goto qc24_host_busy; } spin_unlock_irq(ha->host->host_lock); sp = qla2x00_get_new_sp(pha, fcport, cmd, done); if (!sp) goto qc24_host_busy_lock; rval = qla24xx_start_scsi(sp); if (rval != QLA_SUCCESS) goto qc24_host_busy_free_sp; spin_lock_irq(ha->host->host_lock); return 0; qc24_host_busy_free_sp: qla2x00_sp_free_dma(pha, sp); mempool_free(sp, pha->srb_mempool); qc24_host_busy_lock: spin_lock_irq(ha->host->host_lock); qc24_host_busy: return SCSI_MLQUEUE_HOST_BUSY; qc24_fail_command: done(cmd); return 0; } /* * qla2x00_eh_wait_on_command * Waits for the command to be returned by the Firmware for some * max time. * * Input: * ha = actual ha whose done queue will contain the command * returned by firmware. * cmd = Scsi Command to wait on. * flag = Abort/Reset(Bus or Device Reset) * * Return: * Not Found : 0 * Found : 1 */ static int qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd) { #define ABORT_POLLING_PERIOD 1000 #define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD)) unsigned long wait_iter = ABORT_WAIT_ITER; int ret = QLA_SUCCESS; while (CMD_SP(cmd)) { msleep(ABORT_POLLING_PERIOD); if (--wait_iter) break; } if (CMD_SP(cmd)) ret = QLA_FUNCTION_FAILED; return ret; } /* * qla2x00_wait_for_hba_online * Wait till the HBA is online after going through * <= MAX_RETRIES_OF_ISP_ABORT or * finally HBA is disabled ie marked offline * * Input: * ha - pointer to host adapter structure * * Note: * Does context switching-Release SPIN_LOCK * (if any) before calling this routine. * * Return: * Success (Adapter is online) : 0 * Failed (Adapter is offline/disabled) : 1 */ int qla2x00_wait_for_hba_online(scsi_qla_host_t *ha) { int return_status; unsigned long wait_online; scsi_qla_host_t *pha = to_qla_parent(ha); wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ); while (((test_bit(ISP_ABORT_NEEDED, &pha->dpc_flags)) || test_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags) || test_bit(ISP_ABORT_RETRY, &pha->dpc_flags) || pha->dpc_active) && time_before(jiffies, wait_online)) { msleep(1000); } if (pha->flags.online) return_status = QLA_SUCCESS; else return_status = QLA_FUNCTION_FAILED; DEBUG2(printk("%s return_status=%d\n",__func__,return_status)); return (return_status); } /* * qla2x00_wait_for_loop_ready * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop * to be in LOOP_READY state. * Input: * ha - pointer to host adapter structure * * Note: * Does context switching-Release SPIN_LOCK * (if any) before calling this routine. * * * Return: * Success (LOOP_READY) : 0 * Failed (LOOP_NOT_READY) : 1 */ static inline int qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha) { int return_status = QLA_SUCCESS; unsigned long loop_timeout ; scsi_qla_host_t *pha = to_qla_parent(ha); /* wait for 5 min at the max for loop to be ready */ loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ); while ((!atomic_read(&pha->loop_down_timer) && atomic_read(&pha->loop_state) == LOOP_DOWN) || atomic_read(&pha->loop_state) != LOOP_READY) { if (atomic_read(&pha->loop_state) == LOOP_DEAD) { return_status = QLA_FUNCTION_FAILED; break; } msleep(1000); if (time_after_eq(jiffies, loop_timeout)) { return_status = QLA_FUNCTION_FAILED; break; } } return (return_status); } static void qla2x00_block_error_handler(struct scsi_cmnd *cmnd) { struct Scsi_Host *shost = cmnd->device->host; struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device)); unsigned long flags; spin_lock_irqsave(shost->host_lock, flags); while (rport->port_state == FC_PORTSTATE_BLOCKED) { spin_unlock_irqrestore(shost->host_lock, flags); msleep(1000); spin_lock_irqsave(shost->host_lock, flags); } spin_unlock_irqrestore(shost->host_lock, flags); return; } /************************************************************************** * qla2xxx_eh_abort * * Description: * The abort function will abort the specified command. * * Input: * cmd = Linux SCSI command packet to be aborted. * * Returns: * Either SUCCESS or FAILED. * * Note: * Only return FAILED if command not returned by firmware. **************************************************************************/ static int qla2xxx_eh_abort(struct scsi_cmnd *cmd) { scsi_qla_host_t *ha = shost_priv(cmd->device->host); srb_t *sp; int ret, i; unsigned int id, lun; unsigned long serial; unsigned long flags; int wait = 0; scsi_qla_host_t *pha = to_qla_parent(ha); qla2x00_block_error_handler(cmd); if (!CMD_SP(cmd)) return SUCCESS; ret = SUCCESS; id = cmd->device->id; lun = cmd->device->lun; serial = cmd->serial_number; /* Check active list for command command. */ spin_lock_irqsave(&pha->hardware_lock, flags); for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) { sp = pha->outstanding_cmds[i]; if (sp == NULL) continue; if (sp->cmd != cmd) continue; DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n", __func__, ha->host_no, sp, serial)); DEBUG3(qla2x00_print_scsi_cmd(cmd)); spin_unlock_irqrestore(&pha->hardware_lock, flags); if (ha->isp_ops->abort_command(ha, sp)) { DEBUG2(printk("%s(%ld): abort_command " "mbx failed.\n", __func__, ha->host_no)); } else { DEBUG3(printk("%s(%ld): abort_command " "mbx success.\n", __func__, ha->host_no)); wait = 1; } spin_lock_irqsave(&pha->hardware_lock, flags); break; } spin_unlock_irqrestore(&pha->hardware_lock, flags); /* Wait for the command to be returned. */ if (wait) { if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) { qla_printk(KERN_ERR, ha, "scsi(%ld:%d:%d): Abort handler timed out -- %lx " "%x.\n", ha->host_no, id, lun, serial, ret); ret = FAILED; } } qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n", ha->host_no, id, lun, wait, serial, ret); return ret; } /************************************************************************** * qla2x00_eh_wait_for_pending_target_commands * * Description: * Waits for all the commands to come back from the specified target. * * Input: * ha - pointer to scsi_qla_host structure. * t - target * Returns: * Either SUCCESS or FAILED. * * Note: **************************************************************************/ static int qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t) { int cnt; int status; srb_t *sp; struct scsi_cmnd *cmd; unsigned long flags; scsi_qla_host_t *pha = to_qla_parent(ha); status = 0; /* * Waiting for all commands for the designated target in the active * array */ for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) { spin_lock_irqsave(&pha->hardware_lock, flags); sp = pha->outstanding_cmds[cnt]; if (sp) { cmd = sp->cmd; spin_unlock_irqrestore(&pha->hardware_lock, flags); if (cmd->device->id == t && ha->vp_idx == sp->ha->vp_idx) { if (!qla2x00_eh_wait_on_command(ha, cmd)) { status = 1; break; } } } else { spin_unlock_irqrestore(&pha->hardware_lock, flags); } } return (status); } /************************************************************************** * qla2xxx_eh_device_reset * * Description: * The device reset function will reset the target and abort any * executing commands. * * NOTE: The use of SP is undefined within this context. Do *NOT* * attempt to use this value, even if you determine it is * non-null. * * Input: * cmd = Linux SCSI command packet of the command that cause the * bus device reset. * * Returns: * SUCCESS/FAILURE (defined as macro in scsi.h). * **************************************************************************/ static int qla2xxx_eh_device_reset(struct scsi_cmnd *cmd) { scsi_qla_host_t *ha = shost_priv(cmd->device->host); fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; int ret = FAILED; unsigned int id, lun; unsigned long serial; qla2x00_block_error_handler(cmd); id = cmd->device->id; lun = cmd->device->lun; serial = cmd->serial_number; if (!fcport) return ret; qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun); if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) goto eh_dev_reset_done; if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) { if (qla2x00_device_reset(ha, fcport) == 0) ret = SUCCESS; } else { DEBUG2(printk(KERN_INFO "%s failed: loop not ready\n",__func__)); } if (ret == FAILED) { DEBUG3(printk("%s(%ld): device reset failed\n", __func__, ha->host_no)); qla_printk(KERN_INFO, ha, "%s: device reset failed\n", __func__); goto eh_dev_reset_done; } /* Flush outstanding commands. */ if (qla2x00_eh_wait_for_pending_target_commands(ha, id)) ret = FAILED; if (ret == FAILED) { DEBUG3(printk("%s(%ld): failed while waiting for commands\n", __func__, ha->host_no)); qla_printk(KERN_INFO, ha, "%s: failed while waiting for commands\n", __func__); } else qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no, id, lun); eh_dev_reset_done: return ret; } /************************************************************************** * qla2x00_eh_wait_for_pending_commands * * Description: * Waits for all the commands to come back from the specified host. * * Input: * ha - pointer to scsi_qla_host structure. * * Returns: * 1 : SUCCESS * 0 : FAILED * * Note: **************************************************************************/ static int qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha) { int cnt; int status; srb_t *sp; struct scsi_cmnd *cmd; unsigned long flags; status = 1; /* * Waiting for all commands for the designated target in the active * array */ for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) { spin_lock_irqsave(&ha->hardware_lock, flags); sp = ha->outstanding_cmds[cnt]; if (sp) { cmd = sp->cmd; spin_unlock_irqrestore(&ha->hardware_lock, flags); status = qla2x00_eh_wait_on_command(ha, cmd); if (status == 0) break; } else { spin_unlock_irqrestore(&ha->hardware_lock, flags); } } return (status); } /************************************************************************** * qla2xxx_eh_bus_reset * * Description: * The bus reset function will reset the bus and abort any executing * commands. * * Input: * cmd = Linux SCSI command packet of the command that cause the * bus reset. * * Returns: * SUCCESS/FAILURE (defined as macro in scsi.h). * **************************************************************************/ static int qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd) { scsi_qla_host_t *ha = shost_priv(cmd->device->host); scsi_qla_host_t *pha = to_qla_parent(ha); fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; int ret = FAILED; unsigned int id, lun; unsigned long serial; qla2x00_block_error_handler(cmd); id = cmd->device->id; lun = cmd->device->lun; serial = cmd->serial_number; if (!fcport) return ret; qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun); if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) { DEBUG2(printk("%s failed:board disabled\n",__func__)); goto eh_bus_reset_done; } if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) { if (qla2x00_loop_reset(ha) == QLA_SUCCESS) ret = SUCCESS; } if (ret == FAILED) goto eh_bus_reset_done; /* Flush outstanding commands. */ if (!qla2x00_eh_wait_for_pending_commands(pha)) ret = FAILED; eh_bus_reset_done: qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__, (ret == FAILED) ? "failed" : "succeded"); return ret; } /************************************************************************** * qla2xxx_eh_host_reset * * Description: * The reset function will reset the Adapter. * * Input: * cmd = Linux SCSI command packet of the command that cause the * adapter reset. * * Returns: * Either SUCCESS or FAILED. * * Note: **************************************************************************/ static int qla2xxx_eh_host_reset(struct scsi_cmnd *cmd) { scsi_qla_host_t *ha = shost_priv(cmd->device->host); fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; int ret = FAILED; unsigned int id, lun; unsigned long serial; scsi_qla_host_t *pha = to_qla_parent(ha); qla2x00_block_error_handler(cmd); id = cmd->device->id; lun = cmd->device->lun; serial = cmd->serial_number; if (!fcport) return ret; qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun); if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) goto eh_host_reset_lock; /* * Fixme-may be dpc thread is active and processing * loop_resync,so wait a while for it to * be completed and then issue big hammer.Otherwise * it may cause I/O failure as big hammer marks the * devices as lost kicking of the port_down_timer * while dpc is stuck for the mailbox to complete. */ qla2x00_wait_for_loop_ready(ha); set_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags); if (qla2x00_abort_isp(pha)) { clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags); /* failed. schedule dpc to try */ set_bit(ISP_ABORT_NEEDED, &pha->dpc_flags); if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) goto eh_host_reset_lock; } clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags); /* Waiting for our command in done_queue to be returned to OS.*/ if (qla2x00_eh_wait_for_pending_commands(pha)) ret = SUCCESS; if (ha->parent) qla2x00_vp_abort_isp(ha); eh_host_reset_lock: qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__, (ret == FAILED) ? "failed" : "succeded"); return ret; } /* * qla2x00_loop_reset * Issue loop reset. * * Input: * ha = adapter block pointer. * * Returns: * 0 = success */ int qla2x00_loop_reset(scsi_qla_host_t *ha) { int ret; struct fc_port *fcport; if (ha->flags.enable_lip_full_login) { ret = qla2x00_full_login_lip(ha); if (ret != QLA_SUCCESS) { DEBUG2_3(printk("%s(%ld): bus_reset failed: " "full_login_lip=%d.\n", __func__, ha->host_no, ret)); } atomic_set(&ha->loop_state, LOOP_DOWN); atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); qla2x00_mark_all_devices_lost(ha, 0); qla2x00_wait_for_loop_ready(ha); } if (ha->flags.enable_lip_reset) { ret = qla2x00_lip_reset(ha); if (ret != QLA_SUCCESS) { DEBUG2_3(printk("%s(%ld): bus_reset failed: " "lip_reset=%d.\n", __func__, ha->host_no, ret)); } qla2x00_wait_for_loop_ready(ha); } if (ha->flags.enable_target_reset) { list_for_each_entry(fcport, &ha->fcports, list) { if (fcport->port_type != FCT_TARGET) continue; ret = qla2x00_device_reset(ha, fcport); if (ret != QLA_SUCCESS) { DEBUG2_3(printk("%s(%ld): bus_reset failed: " "target_reset=%d d_id=%x.\n", __func__, ha->host_no, ret, fcport->d_id.b24)); } } } /* Issue marker command only when we are going to start the I/O */ ha->marker_needed = 1; return QLA_SUCCESS; } /* * qla2x00_device_reset * Issue bus device reset message to the target. * * Input: * ha = adapter block pointer. * t = SCSI ID. * TARGET_QUEUE_LOCK must be released. * ADAPTER_STATE_LOCK must be released. * * Context: * Kernel context. */ static int qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport) { /* Abort Target command will clear Reservation */ return ha->isp_ops->abort_target(reset_fcport); } void qla2x00_abort_all_cmds(scsi_qla_host_t *ha, int res) { int cnt; unsigned long flags; srb_t *sp; spin_lock_irqsave(&ha->hardware_lock, flags); for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) { sp = ha->outstanding_cmds[cnt]; if (sp) { ha->outstanding_cmds[cnt] = NULL; sp->flags = 0; sp->cmd->result = res; sp->cmd->host_scribble = (unsigned char *)NULL; qla2x00_sp_compl(ha, sp); } } spin_unlock_irqrestore(&ha->hardware_lock, flags); } static int qla2xxx_slave_alloc(struct scsi_device *sdev) { struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); if (!rport || fc_remote_port_chkready(rport)) return -ENXIO; sdev->hostdata = *(fc_port_t **)rport->dd_data; return 0; } static int qla2xxx_slave_configure(struct scsi_device *sdev) { scsi_qla_host_t *ha = shost_priv(sdev->host); struct fc_rport *rport = starget_to_rport(sdev->sdev_target); if (sdev->tagged_supported) scsi_activate_tcq(sdev, ha->max_q_depth); else scsi_deactivate_tcq(sdev, ha->max_q_depth); rport->dev_loss_tmo = ha->port_down_retry_count + 5; return 0; } static void qla2xxx_slave_destroy(struct scsi_device *sdev) { sdev->hostdata = NULL; } static int qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth) { scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); return sdev->queue_depth; } static int qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type) { if (sdev->tagged_supported) { scsi_set_tag_type(sdev, tag_type); if (tag_type) scsi_activate_tcq(sdev, sdev->queue_depth); else scsi_deactivate_tcq(sdev, sdev->queue_depth); } else tag_type = 0; return tag_type; } /** * qla2x00_config_dma_addressing() - Configure OS DMA addressing method. * @ha: HA context * * At exit, the @ha's flags.enable_64bit_addressing set to indicated * supported addressing method. */ static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha) { /* Assume a 32bit DMA mask. */ ha->flags.enable_64bit_addressing = 0; if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) { /* Any upper-dword bits set? */ if (MSD(dma_get_required_mask(&ha->pdev->dev)) && !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) { /* Ok, a 64bit DMA mask is applicable. */ ha->flags.enable_64bit_addressing = 1; ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64; ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64; return; } } dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK); pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK); } static void qla2x00_enable_intrs(scsi_qla_host_t *ha) { unsigned long flags = 0; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; spin_lock_irqsave(&ha->hardware_lock, flags); ha->interrupts_on = 1; /* enable risc and host interrupts */ WRT_REG_WORD(®->ictrl, ICR_EN_INT | ICR_EN_RISC); RD_REG_WORD(®->ictrl); spin_unlock_irqrestore(&ha->hardware_lock, flags); } static void qla2x00_disable_intrs(scsi_qla_host_t *ha) { unsigned long flags = 0; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; spin_lock_irqsave(&ha->hardware_lock, flags); ha->interrupts_on = 0; /* disable risc and host interrupts */ WRT_REG_WORD(®->ictrl, 0); RD_REG_WORD(®->ictrl); spin_unlock_irqrestore(&ha->hardware_lock, flags); } static void qla24xx_enable_intrs(scsi_qla_host_t *ha) { unsigned long flags = 0; struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; spin_lock_irqsave(&ha->hardware_lock, flags); ha->interrupts_on = 1; WRT_REG_DWORD(®->ictrl, ICRX_EN_RISC_INT); RD_REG_DWORD(®->ictrl); spin_unlock_irqrestore(&ha->hardware_lock, flags); } static void qla24xx_disable_intrs(scsi_qla_host_t *ha) { unsigned long flags = 0; struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; spin_lock_irqsave(&ha->hardware_lock, flags); ha->interrupts_on = 0; WRT_REG_DWORD(®->ictrl, 0); RD_REG_DWORD(®->ictrl); spin_unlock_irqrestore(&ha->hardware_lock, flags); } static struct isp_operations qla2100_isp_ops = { .pci_config = qla2100_pci_config, .reset_chip = qla2x00_reset_chip, .chip_diag = qla2x00_chip_diag, .config_rings = qla2x00_config_rings, .reset_adapter = qla2x00_reset_adapter, .nvram_config = qla2x00_nvram_config, .update_fw_options = qla2x00_update_fw_options, .load_risc = qla2x00_load_risc, .pci_info_str = qla2x00_pci_info_str, .fw_version_str = qla2x00_fw_version_str, .intr_handler = qla2100_intr_handler, .enable_intrs = qla2x00_enable_intrs, .disable_intrs = qla2x00_disable_intrs, .abort_command = qla2x00_abort_command, .abort_target = qla2x00_abort_target, .fabric_login = qla2x00_login_fabric, .fabric_logout = qla2x00_fabric_logout, .calc_req_entries = qla2x00_calc_iocbs_32, .build_iocbs = qla2x00_build_scsi_iocbs_32, .prep_ms_iocb = qla2x00_prep_ms_iocb, .prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb, .read_nvram = qla2x00_read_nvram_data, .write_nvram = qla2x00_write_nvram_data, .fw_dump = qla2100_fw_dump, .beacon_on = NULL, .beacon_off = NULL, .beacon_blink = NULL, .read_optrom = qla2x00_read_optrom_data, .write_optrom = qla2x00_write_optrom_data, .get_flash_version = qla2x00_get_flash_version, }; static struct isp_operations qla2300_isp_ops = { .pci_config = qla2300_pci_config, .reset_chip = qla2x00_reset_chip, .chip_diag = qla2x00_chip_diag, .config_rings = qla2x00_config_rings, .reset_adapter = qla2x00_reset_adapter, .nvram_config = qla2x00_nvram_config, .update_fw_options = qla2x00_update_fw_options, .load_risc = qla2x00_load_risc, .pci_info_str = qla2x00_pci_info_str, .fw_version_str = qla2x00_fw_version_str, .intr_handler = qla2300_intr_handler, .enable_intrs = qla2x00_enable_intrs, .disable_intrs = qla2x00_disable_intrs, .abort_command = qla2x00_abort_command, .abort_target = qla2x00_abort_target, .fabric_login = qla2x00_login_fabric, .fabric_logout = qla2x00_fabric_logout, .calc_req_entries = qla2x00_calc_iocbs_32, .build_iocbs = qla2x00_build_scsi_iocbs_32, .prep_ms_iocb = qla2x00_prep_ms_iocb, .prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb, .read_nvram = qla2x00_read_nvram_data, .write_nvram = qla2x00_write_nvram_data, .fw_dump = qla2300_fw_dump, .beacon_on = qla2x00_beacon_on, .beacon_off = qla2x00_beacon_off, .beacon_blink = qla2x00_beacon_blink, .read_optrom = qla2x00_read_optrom_data, .write_optrom = qla2x00_write_optrom_data, .get_flash_version = qla2x00_get_flash_version, }; static struct isp_operations qla24xx_isp_ops = { .pci_config = qla24xx_pci_config, .reset_chip = qla24xx_reset_chip, .chip_diag = qla24xx_chip_diag, .config_rings = qla24xx_config_rings, .reset_adapter = qla24xx_reset_adapter, .nvram_config = qla24xx_nvram_config, .update_fw_options = qla24xx_update_fw_options, .load_risc = qla24xx_load_risc, .pci_info_str = qla24xx_pci_info_str, .fw_version_str = qla24xx_fw_version_str, .intr_handler = qla24xx_intr_handler, .enable_intrs = qla24xx_enable_intrs, .disable_intrs = qla24xx_disable_intrs, .abort_command = qla24xx_abort_command, .abort_target = qla24xx_abort_target, .fabric_login = qla24xx_login_fabric, .fabric_logout = qla24xx_fabric_logout, .calc_req_entries = NULL, .build_iocbs = NULL, .prep_ms_iocb = qla24xx_prep_ms_iocb, .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb, .read_nvram = qla24xx_read_nvram_data, .write_nvram = qla24xx_write_nvram_data, .fw_dump = qla24xx_fw_dump, .beacon_on = qla24xx_beacon_on, .beacon_off = qla24xx_beacon_off, .beacon_blink = qla24xx_beacon_blink, .read_optrom = qla24xx_read_optrom_data, .write_optrom = qla24xx_write_optrom_data, .get_flash_version = qla24xx_get_flash_version, }; static struct isp_operations qla25xx_isp_ops = { .pci_config = qla25xx_pci_config, .reset_chip = qla24xx_reset_chip, .chip_diag = qla24xx_chip_diag, .config_rings = qla24xx_config_rings, .reset_adapter = qla24xx_reset_adapter, .nvram_config = qla24xx_nvram_config, .update_fw_options = qla24xx_update_fw_options, .load_risc = qla24xx_load_risc, .pci_info_str = qla24xx_pci_info_str, .fw_version_str = qla24xx_fw_version_str, .intr_handler = qla24xx_intr_handler, .enable_intrs = qla24xx_enable_intrs, .disable_intrs = qla24xx_disable_intrs, .abort_command = qla24xx_abort_command, .abort_target = qla24xx_abort_target, .fabric_login = qla24xx_login_fabric, .fabric_logout = qla24xx_fabric_logout, .calc_req_entries = NULL, .build_iocbs = NULL, .prep_ms_iocb = qla24xx_prep_ms_iocb, .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb, .read_nvram = qla25xx_read_nvram_data, .write_nvram = qla25xx_write_nvram_data, .fw_dump = qla25xx_fw_dump, .beacon_on = qla24xx_beacon_on, .beacon_off = qla24xx_beacon_off, .beacon_blink = qla24xx_beacon_blink, .read_optrom = qla25xx_read_optrom_data, .write_optrom = qla24xx_write_optrom_data, .get_flash_version = qla24xx_get_flash_version, }; static inline void qla2x00_set_isp_flags(scsi_qla_host_t *ha) { ha->device_type = DT_EXTENDED_IDS; switch (ha->pdev->device) { case PCI_DEVICE_ID_QLOGIC_ISP2100: ha->device_type |= DT_ISP2100; ha->device_type &= ~DT_EXTENDED_IDS; ha->fw_srisc_address = RISC_START_ADDRESS_2100; break; case PCI_DEVICE_ID_QLOGIC_ISP2200: ha->device_type |= DT_ISP2200; ha->device_type &= ~DT_EXTENDED_IDS; ha->fw_srisc_address = RISC_START_ADDRESS_2100; break; case PCI_DEVICE_ID_QLOGIC_ISP2300: ha->device_type |= DT_ISP2300; ha->device_type |= DT_ZIO_SUPPORTED; ha->fw_srisc_address = RISC_START_ADDRESS_2300; break; case PCI_DEVICE_ID_QLOGIC_ISP2312: ha->device_type |= DT_ISP2312; ha->device_type |= DT_ZIO_SUPPORTED; ha->fw_srisc_address = RISC_START_ADDRESS_2300; break; case PCI_DEVICE_ID_QLOGIC_ISP2322: ha->device_type |= DT_ISP2322; ha->device_type |= DT_ZIO_SUPPORTED; if (ha->pdev->subsystem_vendor == 0x1028 && ha->pdev->subsystem_device == 0x0170) ha->device_type |= DT_OEM_001; ha->fw_srisc_address = RISC_START_ADDRESS_2300; break; case PCI_DEVICE_ID_QLOGIC_ISP6312: ha->device_type |= DT_ISP6312; ha->fw_srisc_address = RISC_START_ADDRESS_2300; break; case PCI_DEVICE_ID_QLOGIC_ISP6322: ha->device_type |= DT_ISP6322; ha->fw_srisc_address = RISC_START_ADDRESS_2300; break; case PCI_DEVICE_ID_QLOGIC_ISP2422: ha->device_type |= DT_ISP2422; 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; case PCI_DEVICE_ID_QLOGIC_ISP2432: ha->device_type |= DT_ISP2432; 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; case PCI_DEVICE_ID_QLOGIC_ISP5422: ha->device_type |= DT_ISP5422; ha->device_type |= DT_FWI2; ha->fw_srisc_address = RISC_START_ADDRESS_2400; break; case PCI_DEVICE_ID_QLOGIC_ISP5432: ha->device_type |= DT_ISP5432; ha->device_type |= DT_FWI2; ha->fw_srisc_address = RISC_START_ADDRESS_2400; break; case PCI_DEVICE_ID_QLOGIC_ISP2532: ha->device_type |= DT_ISP2532; 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; } } static int qla2x00_iospace_config(scsi_qla_host_t *ha) { resource_size_t pio; if (pci_request_selected_regions(ha->pdev, ha->bars, QLA2XXX_DRIVER_NAME)) { qla_printk(KERN_WARNING, ha, "Failed to reserve PIO/MMIO regions (%s)\n", pci_name(ha->pdev)); goto iospace_error_exit; } if (!(ha->bars & 1)) goto skip_pio; /* We only need PIO for Flash operations on ISP2312 v2 chips. */ pio = pci_resource_start(ha->pdev, 0); if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) { if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) { qla_printk(KERN_WARNING, ha, "Invalid PCI I/O region size (%s)...\n", pci_name(ha->pdev)); pio = 0; } } else { qla_printk(KERN_WARNING, ha, "region #0 not a PIO resource (%s)...\n", pci_name(ha->pdev)); pio = 0; } ha->pio_address = pio; skip_pio: /* Use MMIO operations for all accesses. */ if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) { qla_printk(KERN_ERR, ha, "region #1 not an MMIO resource (%s), aborting\n", pci_name(ha->pdev)); goto iospace_error_exit; } if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) { qla_printk(KERN_ERR, ha, "Invalid PCI mem region size (%s), aborting\n", pci_name(ha->pdev)); goto iospace_error_exit; } ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN); if (!ha->iobase) { qla_printk(KERN_ERR, ha, "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev)); goto iospace_error_exit; } return (0); iospace_error_exit: return (-ENOMEM); } static void qla2xxx_scan_start(struct Scsi_Host *shost) { scsi_qla_host_t *ha = shost_priv(shost); set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags); set_bit(RSCN_UPDATE, &ha->dpc_flags); } static int qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time) { scsi_qla_host_t *ha = shost_priv(shost); if (!ha->host) return 1; if (time > ha->loop_reset_delay * HZ) return 1; return atomic_read(&ha->loop_state) == LOOP_READY; } /* * PCI driver interface */ static int __devinit qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) { int ret = -ENODEV; struct Scsi_Host *host; scsi_qla_host_t *ha; char pci_info[30]; char fw_str[30]; struct scsi_host_template *sht; int bars, mem_only = 0; bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO); sht = &qla2x00_driver_template; if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 || pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 || pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 || pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 || pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532) { bars = pci_select_bars(pdev, IORESOURCE_MEM); sht = &qla24xx_driver_template; mem_only = 1; } if (mem_only) { if (pci_enable_device_mem(pdev)) goto probe_out; } else { if (pci_enable_device(pdev)) goto probe_out; } if (pci_find_aer_capability(pdev)) if (pci_enable_pcie_error_reporting(pdev)) goto probe_out; host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t)); if (host == NULL) { printk(KERN_WARNING "qla2xxx: Couldn't allocate host from scsi layer!\n"); goto probe_disable_device; } /* Clear our data area */ ha = shost_priv(host); memset(ha, 0, sizeof(scsi_qla_host_t)); ha->pdev = pdev; ha->host = host; ha->host_no = host->host_no; sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no); ha->parent = NULL; ha->bars = bars; ha->mem_only = mem_only; spin_lock_init(&ha->hardware_lock); /* Set ISP-type information. */ qla2x00_set_isp_flags(ha); /* Configure PCI I/O space */ ret = qla2x00_iospace_config(ha); if (ret) goto probe_failed; qla_printk(KERN_INFO, ha, "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq, ha->iobase); ha->prev_topology = 0; ha->init_cb_size = sizeof(init_cb_t); ha->mgmt_svr_loop_id = MANAGEMENT_SERVER + ha->vp_idx; ha->link_data_rate = PORT_SPEED_UNKNOWN; ha->optrom_size = OPTROM_SIZE_2300; ha->max_q_depth = MAX_Q_DEPTH; if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU) ha->max_q_depth = ql2xmaxqdepth; /* Assign ISP specific operations. */ if (IS_QLA2100(ha)) { host->max_id = MAX_TARGETS_2100; ha->mbx_count = MAILBOX_REGISTER_COUNT_2100; ha->request_q_length = REQUEST_ENTRY_CNT_2100; ha->response_q_length = RESPONSE_ENTRY_CNT_2100; ha->last_loop_id = SNS_LAST_LOOP_ID_2100; host->sg_tablesize = 32; ha->gid_list_info_size = 4; ha->isp_ops = &qla2100_isp_ops; } else if (IS_QLA2200(ha)) { host->max_id = MAX_TARGETS_2200; ha->mbx_count = MAILBOX_REGISTER_COUNT; ha->request_q_length = REQUEST_ENTRY_CNT_2200; ha->response_q_length = RESPONSE_ENTRY_CNT_2100; ha->last_loop_id = SNS_LAST_LOOP_ID_2100; ha->gid_list_info_size = 4; ha->isp_ops = &qla2100_isp_ops; } else if (IS_QLA23XX(ha)) { host->max_id = MAX_TARGETS_2200; ha->mbx_count = MAILBOX_REGISTER_COUNT; ha->request_q_length = REQUEST_ENTRY_CNT_2200; ha->response_q_length = RESPONSE_ENTRY_CNT_2300; ha->last_loop_id = SNS_LAST_LOOP_ID_2300; ha->gid_list_info_size = 6; if (IS_QLA2322(ha) || IS_QLA6322(ha)) ha->optrom_size = OPTROM_SIZE_2322; ha->isp_ops = &qla2300_isp_ops; } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) { host->max_id = MAX_TARGETS_2200; ha->mbx_count = MAILBOX_REGISTER_COUNT; ha->request_q_length = REQUEST_ENTRY_CNT_24XX; ha->response_q_length = RESPONSE_ENTRY_CNT_2300; ha->last_loop_id = SNS_LAST_LOOP_ID_2300; ha->init_cb_size = sizeof(struct mid_init_cb_24xx); ha->mgmt_svr_loop_id = 10 + ha->vp_idx; ha->gid_list_info_size = 8; ha->optrom_size = OPTROM_SIZE_24XX; ha->isp_ops = &qla24xx_isp_ops; } else if (IS_QLA25XX(ha)) { host->max_id = MAX_TARGETS_2200; ha->mbx_count = MAILBOX_REGISTER_COUNT; ha->request_q_length = REQUEST_ENTRY_CNT_24XX; ha->response_q_length = RESPONSE_ENTRY_CNT_2300; ha->last_loop_id = SNS_LAST_LOOP_ID_2300; ha->init_cb_size = sizeof(struct mid_init_cb_24xx); ha->mgmt_svr_loop_id = 10 + ha->vp_idx; ha->gid_list_info_size = 8; ha->optrom_size = OPTROM_SIZE_25XX; ha->isp_ops = &qla25xx_isp_ops; } host->can_queue = ha->request_q_length + 128; /* load the F/W, read paramaters, and init the H/W */ ha->instance = num_hosts; init_MUTEX(&ha->vport_sem); init_completion(&ha->mbx_cmd_comp); complete(&ha->mbx_cmd_comp); init_completion(&ha->mbx_intr_comp); INIT_LIST_HEAD(&ha->list); INIT_LIST_HEAD(&ha->fcports); INIT_LIST_HEAD(&ha->vp_list); INIT_LIST_HEAD(&ha->work_list); set_bit(0, (unsigned long *) ha->vp_idx_map); qla2x00_config_dma_addressing(ha); if (qla2x00_mem_alloc(ha)) { qla_printk(KERN_WARNING, ha, "[ERROR] Failed to allocate memory for adapter\n"); ret = -ENOMEM; goto probe_failed; } if (qla2x00_initialize_adapter(ha)) { qla_printk(KERN_WARNING, ha, "Failed to initialize adapter\n"); DEBUG2(printk("scsi(%ld): Failed to initialize adapter - " "Adapter flags %x.\n", ha->host_no, ha->device_flags)); ret = -ENODEV; goto probe_failed; } /* * Startup the kernel thread for this host adapter */ ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha, "%s_dpc", ha->host_str); if (IS_ERR(ha->dpc_thread)) { qla_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n"); ret = PTR_ERR(ha->dpc_thread); goto probe_failed; } host->this_id = 255; host->cmd_per_lun = 3; host->unique_id = ha->instance; host->max_cmd_len = MAX_CMDSZ; host->max_channel = MAX_BUSES - 1; host->max_lun = MAX_LUNS; host->transportt = qla2xxx_transport_template; ret = qla2x00_request_irqs(ha); if (ret) goto probe_failed; /* Initialized the timer */ qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL); DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n", ha->host_no, ha)); pci_set_drvdata(pdev, ha); ha->flags.init_done = 1; ha->flags.online = 1; num_hosts++; ret = scsi_add_host(host, &pdev->dev); if (ret) goto probe_failed; scsi_scan_host(host); qla2x00_alloc_sysfs_attr(ha); qla2x00_init_host_attr(ha); qla2x00_dfs_setup(ha); qla_printk(KERN_INFO, ha, "\n" " QLogic Fibre Channel HBA Driver: %s\n" " QLogic %s - %s\n" " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n", qla2x00_version_str, ha->model_number, ha->model_desc ? ha->model_desc: "", pdev->device, ha->isp_ops->pci_info_str(ha, pci_info), pci_name(pdev), ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no, ha->isp_ops->fw_version_str(ha, fw_str)); return 0; probe_failed: qla2x00_free_device(ha); scsi_host_put(host); probe_disable_device: pci_disable_device(pdev); probe_out: return ret; } static void qla2x00_remove_one(struct pci_dev *pdev) { scsi_qla_host_t *ha; ha = pci_get_drvdata(pdev); qla2x00_dfs_remove(ha); qla2x00_free_sysfs_attr(ha); fc_remove_host(ha->host); scsi_remove_host(ha->host); qla2x00_free_device(ha); scsi_host_put(ha->host); pci_disable_device(pdev); pci_set_drvdata(pdev, NULL); } static void qla2x00_free_device(scsi_qla_host_t *ha) { qla2x00_abort_all_cmds(ha, DID_NO_CONNECT << 16); /* Disable timer */ if (ha->timer_active) qla2x00_stop_timer(ha); ha->flags.online = 0; /* Kill the kernel thread for this host */ if (ha->dpc_thread) { struct task_struct *t = ha->dpc_thread; /* * qla2xxx_wake_dpc checks for ->dpc_thread * so we need to zero it out. */ ha->dpc_thread = NULL; kthread_stop(t); } if (ha->flags.fce_enabled) qla2x00_disable_fce_trace(ha, NULL, NULL); if (ha->eft) qla2x00_disable_eft_trace(ha); /* Stop currently executing firmware. */ qla2x00_try_to_stop_firmware(ha); /* turn-off interrupts on the card */ if (ha->interrupts_on) ha->isp_ops->disable_intrs(ha); qla2x00_mem_free(ha); qla2x00_free_irqs(ha); /* release io space registers */ if (ha->iobase) iounmap(ha->iobase); pci_release_selected_regions(ha->pdev, ha->bars); } static inline void qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport, int defer) { unsigned long flags; struct fc_rport *rport; if (!fcport->rport) return; rport = fcport->rport; if (defer) { spin_lock_irqsave(&fcport->rport_lock, flags); fcport->drport = rport; fcport->rport = NULL; *(fc_port_t **)rport->dd_data = NULL; spin_unlock_irqrestore(&fcport->rport_lock, flags); set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags); } else { spin_lock_irqsave(&fcport->rport_lock, flags); fcport->rport = NULL; *(fc_port_t **)rport->dd_data = NULL; spin_unlock_irqrestore(&fcport->rport_lock, flags); fc_remote_port_delete(rport); } } /* * qla2x00_mark_device_lost Updates fcport state when device goes offline. * * Input: ha = adapter block pointer. fcport = port structure pointer. * * Return: None. * * Context: */ void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport, int do_login, int defer) { if (atomic_read(&fcport->state) == FCS_ONLINE && ha->vp_idx == fcport->vp_idx) qla2x00_schedule_rport_del(ha, fcport, defer); /* * We may need to retry the login, so don't change the state of the * port but do the retries. */ if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD) atomic_set(&fcport->state, FCS_DEVICE_LOST); if (!do_login) return; if (fcport->login_retry == 0) { fcport->login_retry = ha->login_retry_count; set_bit(RELOGIN_NEEDED, &ha->dpc_flags); DEBUG(printk("scsi(%ld): Port login retry: " "%02x%02x%02x%02x%02x%02x%02x%02x, " "id = 0x%04x retry cnt=%d\n", ha->host_no, fcport->port_name[0], fcport->port_name[1], fcport->port_name[2], fcport->port_name[3], fcport->port_name[4], fcport->port_name[5], fcport->port_name[6], fcport->port_name[7], fcport->loop_id, fcport->login_retry)); } } /* * qla2x00_mark_all_devices_lost * Updates fcport state when device goes offline. * * Input: * ha = adapter block pointer. * fcport = port structure pointer. * * Return: * None. * * Context: */ void qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer) { fc_port_t *fcport; scsi_qla_host_t *pha = to_qla_parent(ha); list_for_each_entry(fcport, &pha->fcports, list) { if (ha->vp_idx != 0 && ha->vp_idx != fcport->vp_idx) continue; /* * No point in marking the device as lost, if the device is * already DEAD. */ if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD) continue; if (atomic_read(&fcport->state) == FCS_ONLINE) { if (defer) qla2x00_schedule_rport_del(ha, fcport, defer); else if (ha->vp_idx == fcport->vp_idx) qla2x00_schedule_rport_del(ha, fcport, defer); } atomic_set(&fcport->state, FCS_DEVICE_LOST); } if (defer) qla2xxx_wake_dpc(ha); } /* * qla2x00_mem_alloc * Allocates adapter memory. * * Returns: * 0 = success. * !0 = failure. */ static int qla2x00_mem_alloc(scsi_qla_host_t *ha) { char name[16]; ha->request_ring = dma_alloc_coherent(&ha->pdev->dev, (ha->request_q_length + 1) * sizeof(request_t), &ha->request_dma, GFP_KERNEL); if (!ha->request_ring) goto fail; ha->response_ring = dma_alloc_coherent(&ha->pdev->dev, (ha->response_q_length + 1) * sizeof(response_t), &ha->response_dma, GFP_KERNEL); if (!ha->response_ring) goto fail_free_request_ring; ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE, &ha->gid_list_dma, GFP_KERNEL); if (!ha->gid_list) goto fail_free_response_ring; ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size, &ha->init_cb_dma, GFP_KERNEL); if (!ha->init_cb) goto fail_free_gid_list; snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no); ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev, DMA_POOL_SIZE, 8, 0); if (!ha->s_dma_pool) goto fail_free_init_cb; ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep); if (!ha->srb_mempool) goto fail_free_s_dma_pool; /* Get memory for cached NVRAM */ ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL); if (!ha->nvram) goto fail_free_srb_mempool; /* Allocate memory for SNS commands */ if (IS_QLA2100(ha) || IS_QLA2200(ha)) { /* Get consistent memory allocated for SNS commands */ ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL); if (!ha->sns_cmd) goto fail_free_nvram; } else { /* Get consistent memory allocated for MS IOCB */ ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &ha->ms_iocb_dma); if (!ha->ms_iocb) goto fail_free_nvram; /* Get consistent memory allocated for CT SNS commands */ ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL); if (!ha->ct_sns) goto fail_free_ms_iocb; } return 0; fail_free_ms_iocb: dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma); ha->ms_iocb = NULL; ha->ms_iocb_dma = 0; fail_free_nvram: kfree(ha->nvram); ha->nvram = NULL; fail_free_srb_mempool: mempool_destroy(ha->srb_mempool); ha->srb_mempool = NULL; fail_free_s_dma_pool: dma_pool_destroy(ha->s_dma_pool); ha->s_dma_pool = NULL; fail_free_init_cb: dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb, ha->init_cb_dma); ha->init_cb = NULL; ha->init_cb_dma = 0; fail_free_gid_list: dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list, ha->gid_list_dma); ha->gid_list = NULL; ha->gid_list_dma = 0; fail_free_response_ring: dma_free_coherent(&ha->pdev->dev, (ha->response_q_length + 1) * sizeof(response_t), ha->response_ring, ha->response_dma); ha->response_ring = NULL; ha->response_dma = 0; fail_free_request_ring: dma_free_coherent(&ha->pdev->dev, (ha->request_q_length + 1) * sizeof(request_t), ha->request_ring, ha->request_dma); ha->request_ring = NULL; ha->request_dma = 0; fail: return -ENOMEM; } /* * qla2x00_mem_free * Frees all adapter allocated memory. * * Input: * ha = adapter block pointer. */ static void qla2x00_mem_free(scsi_qla_host_t *ha) { struct list_head *fcpl, *fcptemp; fc_port_t *fcport; if (ha->srb_mempool) mempool_destroy(ha->srb_mempool); if (ha->fce) dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce, ha->fce_dma); if (ha->fw_dump) { if (ha->eft) dma_free_coherent(&ha->pdev->dev, ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma); vfree(ha->fw_dump); } if (ha->sns_cmd) dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt), ha->sns_cmd, ha->sns_cmd_dma); if (ha->ct_sns) dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt), ha->ct_sns, ha->ct_sns_dma); if (ha->sfp_data) dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma); if (ha->ms_iocb) dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma); if (ha->s_dma_pool) dma_pool_destroy(ha->s_dma_pool); if (ha->init_cb) dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb, ha->init_cb_dma); if (ha->gid_list) dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list, ha->gid_list_dma); if (ha->response_ring) dma_free_coherent(&ha->pdev->dev, (ha->response_q_length + 1) * sizeof(response_t), ha->response_ring, ha->response_dma); if (ha->request_ring) dma_free_coherent(&ha->pdev->dev, (ha->request_q_length + 1) * sizeof(request_t), ha->request_ring, ha->request_dma); ha->srb_mempool = NULL; ha->eft = NULL; ha->eft_dma = 0; ha->sns_cmd = NULL; ha->sns_cmd_dma = 0; ha->ct_sns = NULL; ha->ct_sns_dma = 0; ha->ms_iocb = NULL; ha->ms_iocb_dma = 0; ha->init_cb = NULL; ha->init_cb_dma = 0; ha->s_dma_pool = NULL; ha->gid_list = NULL; ha->gid_list_dma = 0; ha->response_ring = NULL; ha->response_dma = 0; ha->request_ring = NULL; ha->request_dma = 0; list_for_each_safe(fcpl, fcptemp, &ha->fcports) { fcport = list_entry(fcpl, fc_port_t, list); /* fc ports */ list_del_init(&fcport->list); kfree(fcport); } INIT_LIST_HEAD(&ha->fcports); ha->fw_dump = NULL; ha->fw_dumped = 0; ha->fw_dump_reading = 0; vfree(ha->optrom_buffer); kfree(ha->nvram); } struct qla_work_evt * qla2x00_alloc_work(struct scsi_qla_host *ha, enum qla_work_type type, int locked) { struct qla_work_evt *e; e = kzalloc(sizeof(struct qla_work_evt), locked ? GFP_ATOMIC: GFP_KERNEL); if (!e) return NULL; INIT_LIST_HEAD(&e->list); e->type = type; e->flags = QLA_EVT_FLAG_FREE; return e; } int qla2x00_post_work(struct scsi_qla_host *ha, struct qla_work_evt *e, int locked) { unsigned long flags; if (!locked) spin_lock_irqsave(&ha->hardware_lock, flags); list_add_tail(&e->list, &ha->work_list); qla2xxx_wake_dpc(ha); if (!locked) spin_unlock_irqrestore(&ha->hardware_lock, flags); return QLA_SUCCESS; } int qla2x00_post_aen_work(struct scsi_qla_host *ha, enum fc_host_event_code code, u32 data) { struct qla_work_evt *e; e = qla2x00_alloc_work(ha, QLA_EVT_AEN, 1); if (!e) return QLA_FUNCTION_FAILED; e->u.aen.code = code; e->u.aen.data = data; return qla2x00_post_work(ha, e, 1); } static void qla2x00_do_work(struct scsi_qla_host *ha) { struct qla_work_evt *e; spin_lock_irq(&ha->hardware_lock); while (!list_empty(&ha->work_list)) { e = list_entry(ha->work_list.next, struct qla_work_evt, list); list_del_init(&e->list); spin_unlock_irq(&ha->hardware_lock); switch (e->type) { case QLA_EVT_AEN: fc_host_post_event(ha->host, fc_get_event_number(), e->u.aen.code, e->u.aen.data); break; } if (e->flags & QLA_EVT_FLAG_FREE) kfree(e); spin_lock_irq(&ha->hardware_lock); } spin_unlock_irq(&ha->hardware_lock); } /************************************************************************** * qla2x00_do_dpc * This kernel thread is a task that is schedule by the interrupt handler * to perform the background processing for interrupts. * * Notes: * This task always run in the context of a kernel thread. It * is kick-off by the driver's detect code and starts up * up one per adapter. It immediately goes to sleep and waits for * some fibre event. When either the interrupt handler or * the timer routine detects a event it will one of the task * bits then wake us up. **************************************************************************/ static int qla2x00_do_dpc(void *data) { int rval; scsi_qla_host_t *ha; fc_port_t *fcport; uint8_t status; uint16_t next_loopid; struct scsi_qla_host *vha; int i; ha = (scsi_qla_host_t *)data; set_user_nice(current, -20); while (!kthread_should_stop()) { DEBUG3(printk("qla2x00: DPC handler sleeping\n")); set_current_state(TASK_INTERRUPTIBLE); schedule(); __set_current_state(TASK_RUNNING); DEBUG3(printk("qla2x00: DPC handler waking up\n")); /* Initialization not yet finished. Don't do anything yet. */ if (!ha->flags.init_done) continue; DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no)); ha->dpc_active = 1; if (ha->flags.mbox_busy) { ha->dpc_active = 0; continue; } qla2x00_do_work(ha); if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) { DEBUG(printk("scsi(%ld): dpc: sched " "qla2x00_abort_isp ha = %p\n", ha->host_no, ha)); if (!(test_and_set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) { if (qla2x00_abort_isp(ha)) { /* failed. retry later */ set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); } clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags); } for_each_mapped_vp_idx(ha, i) { list_for_each_entry(vha, &ha->vp_list, vp_list) { if (i == vha->vp_idx) { set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); break; } } } DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n", ha->host_no)); } if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags)) qla2x00_update_fcports(ha); if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) { DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n", ha->host_no)); qla2x00_loop_reset(ha); } if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) && (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) { DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n", ha->host_no)); qla2x00_rst_aen(ha); clear_bit(RESET_ACTIVE, &ha->dpc_flags); } /* Retry each device up to login retry count */ if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) && !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) && atomic_read(&ha->loop_state) != LOOP_DOWN) { DEBUG(printk("scsi(%ld): qla2x00_port_login()\n", ha->host_no)); next_loopid = 0; list_for_each_entry(fcport, &ha->fcports, list) { /* * If the port is not ONLINE then try to login * to it if we haven't run out of retries. */ if (atomic_read(&fcport->state) != FCS_ONLINE && fcport->login_retry) { if (fcport->flags & FCF_FABRIC_DEVICE) { if (fcport->flags & FCF_TAPE_PRESENT) ha->isp_ops->fabric_logout( ha, fcport->loop_id, fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa); status = qla2x00_fabric_login( ha, fcport, &next_loopid); } else status = qla2x00_local_device_login( ha, fcport); fcport->login_retry--; if (status == QLA_SUCCESS) { fcport->old_loop_id = fcport->loop_id; DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n", ha->host_no, fcport->loop_id)); qla2x00_update_fcport(ha, fcport); } else if (status == 1) { set_bit(RELOGIN_NEEDED, &ha->dpc_flags); /* retry the login again */ DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n", ha->host_no, fcport->login_retry, fcport->loop_id)); } else { fcport->login_retry = 0; } if (fcport->login_retry == 0) fcport->loop_id = FC_NO_LOOP_ID; } if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) break; } DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n", ha->host_no)); } if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) && atomic_read(&ha->loop_state) != LOOP_DOWN) { clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags); DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n", ha->host_no)); set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n", ha->host_no)); } if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) { DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n", ha->host_no)); if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags))) { rval = qla2x00_loop_resync(ha); clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags); } DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n", ha->host_no)); } if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) { DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n", ha->host_no)); qla2x00_rescan_fcports(ha); DEBUG(printk("scsi(%ld): Rescan flagged fcports..." "end.\n", ha->host_no)); } if (!ha->interrupts_on) ha->isp_ops->enable_intrs(ha); if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags)) ha->isp_ops->beacon_blink(ha); qla2x00_do_dpc_all_vps(ha); ha->dpc_active = 0; } /* End of while(1) */ DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no)); /* * Make sure that nobody tries to wake us up again. */ ha->dpc_active = 0; return 0; } void qla2xxx_wake_dpc(scsi_qla_host_t *ha) { if (ha->dpc_thread) wake_up_process(ha->dpc_thread); } /* * qla2x00_rst_aen * Processes asynchronous reset. * * Input: * ha = adapter block pointer. */ static void qla2x00_rst_aen(scsi_qla_host_t *ha) { if (ha->flags.online && !ha->flags.reset_active && !atomic_read(&ha->loop_down_timer) && !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) { do { clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); /* * Issue marker command only when we are going to start * the I/O. */ ha->marker_needed = 1; } while (!atomic_read(&ha->loop_down_timer) && (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags))); } } static void qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp) { struct scsi_cmnd *cmd = sp->cmd; if (sp->flags & SRB_DMA_VALID) { scsi_dma_unmap(cmd); sp->flags &= ~SRB_DMA_VALID; } CMD_SP(cmd) = NULL; } void qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp) { struct scsi_cmnd *cmd = sp->cmd; qla2x00_sp_free_dma(ha, sp); mempool_free(sp, ha->srb_mempool); cmd->scsi_done(cmd); } /************************************************************************** * qla2x00_timer * * Description: * One second timer * * Context: Interrupt ***************************************************************************/ void qla2x00_timer(scsi_qla_host_t *ha) { unsigned long cpu_flags = 0; fc_port_t *fcport; int start_dpc = 0; int index; srb_t *sp; int t; scsi_qla_host_t *pha = to_qla_parent(ha); /* * Ports - Port down timer. * * Whenever, a port is in the LOST state we start decrementing its port * down timer every second until it reaches zero. Once it reaches zero * the port it marked DEAD. */ t = 0; list_for_each_entry(fcport, &ha->fcports, list) { if (fcport->port_type != FCT_TARGET) continue; if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) { if (atomic_read(&fcport->port_down_timer) == 0) continue; if (atomic_dec_and_test(&fcport->port_down_timer) != 0) atomic_set(&fcport->state, FCS_DEVICE_DEAD); DEBUG(printk("scsi(%ld): fcport-%d - port retry count: " "%d remaining\n", ha->host_no, t, atomic_read(&fcport->port_down_timer))); } t++; } /* End of for fcport */ /* Loop down handler. */ if (atomic_read(&ha->loop_down_timer) > 0 && !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) { if (atomic_read(&ha->loop_down_timer) == ha->loop_down_abort_time) { DEBUG(printk("scsi(%ld): Loop Down - aborting the " "queues before time expire\n", ha->host_no)); if (!IS_QLA2100(ha) && ha->link_down_timeout) atomic_set(&ha->loop_state, LOOP_DEAD); /* Schedule an ISP abort to return any tape commands. */ /* NPIV - scan physical port only */ if (!ha->parent) { spin_lock_irqsave(&ha->hardware_lock, cpu_flags); for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { fc_port_t *sfcp; sp = ha->outstanding_cmds[index]; if (!sp) continue; sfcp = sp->fcport; if (!(sfcp->flags & FCF_TAPE_PRESENT)) continue; set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); break; } spin_unlock_irqrestore(&ha->hardware_lock, cpu_flags); } set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags); start_dpc++; } /* if the loop has been down for 4 minutes, reinit adapter */ if (atomic_dec_and_test(&ha->loop_down_timer) != 0) { DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - " "restarting queues.\n", ha->host_no)); set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags); start_dpc++; if (!(ha->device_flags & DFLG_NO_CABLE)) { DEBUG(printk("scsi(%ld): Loop down - " "aborting ISP.\n", ha->host_no)); qla_printk(KERN_WARNING, ha, "Loop down - aborting ISP.\n"); set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); } } DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n", ha->host_no, atomic_read(&ha->loop_down_timer))); } /* Check if beacon LED needs to be blinked */ if (ha->beacon_blink_led == 1) { set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags); start_dpc++; } /* Schedule the DPC routine if needed */ if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) || test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) || test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) || test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) || start_dpc || test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) || test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) || test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) || test_bit(VP_DPC_NEEDED, &ha->dpc_flags) || test_bit(RELOGIN_NEEDED, &ha->dpc_flags))) qla2xxx_wake_dpc(pha); qla2x00_restart_timer(ha, WATCH_INTERVAL); } /* Firmware interface routines. */ #define FW_BLOBS 6 #define FW_ISP21XX 0 #define FW_ISP22XX 1 #define FW_ISP2300 2 #define FW_ISP2322 3 #define FW_ISP24XX 4 #define FW_ISP25XX 5 #define FW_FILE_ISP21XX "ql2100_fw.bin" #define FW_FILE_ISP22XX "ql2200_fw.bin" #define FW_FILE_ISP2300 "ql2300_fw.bin" #define FW_FILE_ISP2322 "ql2322_fw.bin" #define FW_FILE_ISP24XX "ql2400_fw.bin" #define FW_FILE_ISP25XX "ql2500_fw.bin" static DECLARE_MUTEX(qla_fw_lock); static struct fw_blob qla_fw_blobs[FW_BLOBS] = { { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, }, { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, }, { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, }, { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, }, { .name = FW_FILE_ISP24XX, }, { .name = FW_FILE_ISP25XX, }, }; struct fw_blob * qla2x00_request_firmware(scsi_qla_host_t *ha) { struct fw_blob *blob; blob = NULL; if (IS_QLA2100(ha)) { blob = &qla_fw_blobs[FW_ISP21XX]; } else if (IS_QLA2200(ha)) { blob = &qla_fw_blobs[FW_ISP22XX]; } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) { blob = &qla_fw_blobs[FW_ISP2300]; } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) { blob = &qla_fw_blobs[FW_ISP2322]; } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) { blob = &qla_fw_blobs[FW_ISP24XX]; } else if (IS_QLA25XX(ha)) { blob = &qla_fw_blobs[FW_ISP25XX]; } down(&qla_fw_lock); if (blob->fw) goto out; if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) { DEBUG2(printk("scsi(%ld): Failed to load firmware image " "(%s).\n", ha->host_no, blob->name)); blob->fw = NULL; blob = NULL; goto out; } out: up(&qla_fw_lock); return blob; } static void qla2x00_release_firmware(void) { int idx; down(&qla_fw_lock); for (idx = 0; idx < FW_BLOBS; idx++) if (qla_fw_blobs[idx].fw) release_firmware(qla_fw_blobs[idx].fw); up(&qla_fw_lock); } static pci_ers_result_t qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) { switch (state) { case pci_channel_io_normal: return PCI_ERS_RESULT_CAN_RECOVER; case pci_channel_io_frozen: pci_disable_device(pdev); return PCI_ERS_RESULT_NEED_RESET; case pci_channel_io_perm_failure: qla2x00_remove_one(pdev); return PCI_ERS_RESULT_DISCONNECT; } return PCI_ERS_RESULT_NEED_RESET; } static pci_ers_result_t qla2xxx_pci_mmio_enabled(struct pci_dev *pdev) { int risc_paused = 0; uint32_t stat; unsigned long flags; scsi_qla_host_t *ha = pci_get_drvdata(pdev); struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24; spin_lock_irqsave(&ha->hardware_lock, flags); if (IS_QLA2100(ha) || IS_QLA2200(ha)){ stat = RD_REG_DWORD(®->hccr); if (stat & HCCR_RISC_PAUSE) risc_paused = 1; } else if (IS_QLA23XX(ha)) { stat = RD_REG_DWORD(®->u.isp2300.host_status); if (stat & HSR_RISC_PAUSED) risc_paused = 1; } else if (IS_FWI2_CAPABLE(ha)) { stat = RD_REG_DWORD(®24->host_status); if (stat & HSRX_RISC_PAUSED) risc_paused = 1; } spin_unlock_irqrestore(&ha->hardware_lock, flags); if (risc_paused) { qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, " "Dumping firmware!\n"); ha->isp_ops->fw_dump(ha, 0); return PCI_ERS_RESULT_NEED_RESET; } else return PCI_ERS_RESULT_RECOVERED; } static pci_ers_result_t qla2xxx_pci_slot_reset(struct pci_dev *pdev) { pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT; scsi_qla_host_t *ha = pci_get_drvdata(pdev); int rc; if (ha->mem_only) rc = pci_enable_device_mem(pdev); else rc = pci_enable_device(pdev); if (rc) { qla_printk(KERN_WARNING, ha, "Can't re-enable PCI device after reset.\n"); return ret; } pci_set_master(pdev); if (ha->isp_ops->pci_config(ha)) return ret; set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags); if (qla2x00_abort_isp(ha)== QLA_SUCCESS) ret = PCI_ERS_RESULT_RECOVERED; clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags); return ret; } static void qla2xxx_pci_resume(struct pci_dev *pdev) { scsi_qla_host_t *ha = pci_get_drvdata(pdev); int ret; ret = qla2x00_wait_for_hba_online(ha); if (ret != QLA_SUCCESS) { qla_printk(KERN_ERR, ha, "the device failed to resume I/O " "from slot/link_reset"); } pci_cleanup_aer_uncorrect_error_status(pdev); } static struct pci_error_handlers qla2xxx_err_handler = { .error_detected = qla2xxx_pci_error_detected, .mmio_enabled = qla2xxx_pci_mmio_enabled, .slot_reset = qla2xxx_pci_slot_reset, .resume = qla2xxx_pci_resume, }; static struct pci_device_id qla2xxx_pci_tbl[] = { { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) }, { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) }, { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) }, { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) }, { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) }, { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) }, { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) }, { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) }, { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) }, { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) }, { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) }, { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) }, { 0 }, }; MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl); static struct pci_driver qla2xxx_pci_driver = { .name = QLA2XXX_DRIVER_NAME, .driver = { .owner = THIS_MODULE, }, .id_table = qla2xxx_pci_tbl, .probe = qla2x00_probe_one, .remove = qla2x00_remove_one, .err_handler = &qla2xxx_err_handler, }; /** * qla2x00_module_init - Module initialization. **/ static int __init qla2x00_module_init(void) { int ret = 0; /* Allocate cache for SRBs. */ srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0, SLAB_HWCACHE_ALIGN, NULL); if (srb_cachep == NULL) { printk(KERN_ERR "qla2xxx: Unable to allocate SRB cache...Failing load!\n"); return -ENOMEM; } /* Derive version string. */ strcpy(qla2x00_version_str, QLA2XXX_VERSION); if (ql2xextended_error_logging) strcat(qla2x00_version_str, "-debug"); qla2xxx_transport_template = fc_attach_transport(&qla2xxx_transport_functions); if (!qla2xxx_transport_template) { kmem_cache_destroy(srb_cachep); return -ENODEV; } qla2xxx_transport_vport_template = fc_attach_transport(&qla2xxx_transport_vport_functions); if (!qla2xxx_transport_vport_template) { kmem_cache_destroy(srb_cachep); fc_release_transport(qla2xxx_transport_template); return -ENODEV; } printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n"); ret = pci_register_driver(&qla2xxx_pci_driver); if (ret) { kmem_cache_destroy(srb_cachep); fc_release_transport(qla2xxx_transport_template); fc_release_transport(qla2xxx_transport_vport_template); } return ret; } /** * qla2x00_module_exit - Module cleanup. **/ static void __exit qla2x00_module_exit(void) { pci_unregister_driver(&qla2xxx_pci_driver); qla2x00_release_firmware(); kmem_cache_destroy(srb_cachep); fc_release_transport(qla2xxx_transport_template); fc_release_transport(qla2xxx_transport_vport_template); } module_init(qla2x00_module_init); module_exit(qla2x00_module_exit); MODULE_AUTHOR("QLogic Corporation"); MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver"); MODULE_LICENSE("GPL"); MODULE_VERSION(QLA2XXX_VERSION); MODULE_FIRMWARE(FW_FILE_ISP21XX); MODULE_FIRMWARE(FW_FILE_ISP22XX); MODULE_FIRMWARE(FW_FILE_ISP2300); MODULE_FIRMWARE(FW_FILE_ISP2322); MODULE_FIRMWARE(FW_FILE_ISP24XX); MODULE_FIRMWARE(FW_FILE_ISP25XX);