| /* |
| * QLogic Fibre Channel HBA Driver |
| * Copyright (c) 2003-2005 QLogic Corporation |
| * |
| * See LICENSE.qla2xxx for copyright and licensing details. |
| */ |
| #include "qla_def.h" |
| |
| #include <linux/moduleparam.h> |
| #include <linux/vmalloc.h> |
| #include <linux/smp_lock.h> |
| #include <linux/delay.h> |
| |
| #include <scsi/scsi_tcq.h> |
| #include <scsi/scsicam.h> |
| #include <scsi/scsi_transport.h> |
| #include <scsi/scsi_transport_fc.h> |
| |
| /* |
| * Driver version |
| */ |
| char qla2x00_version_str[40]; |
| |
| /* |
| * SRB allocation cache |
| */ |
| static kmem_cache_t *srb_cachep; |
| |
| /* |
| * Ioctl related information. |
| */ |
| static 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 = 30; |
| 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 ql2xfwloadbin=1; |
| module_param(ql2xfwloadbin, int, S_IRUGO|S_IRUSR); |
| MODULE_PARM_DESC(ql2xfwloadbin, |
| "Load ISP2xxx firmware image via hotplug."); |
| |
| 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."); |
| |
| /* |
| * SCSI host template entry points |
| */ |
| static int qla2xxx_slave_configure(struct scsi_device * device); |
| static int qla2xxx_slave_alloc(struct scsi_device *); |
| 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_loop_reset(scsi_qla_host_t *ha); |
| 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", |
| .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, |
| .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, |
| }; |
| |
| static struct scsi_host_template qla24xx_driver_template = { |
| .module = THIS_MODULE, |
| .name = "qla2xxx", |
| .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, |
| .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; |
| |
| /* TODO Convert to inlines |
| * |
| * Timer routines |
| */ |
| #define WATCH_INTERVAL 1 /* number of seconds */ |
| |
| static void qla2x00_timer(scsi_qla_host_t *); |
| |
| static __inline__ void qla2x00_start_timer(scsi_qla_host_t *, |
| void *, unsigned long); |
| static __inline__ void qla2x00_restart_timer(scsi_qla_host_t *, unsigned long); |
| static __inline__ void qla2x00_stop_timer(scsi_qla_host_t *); |
| |
| static 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 uint8_t qla2x00_mem_alloc(scsi_qla_host_t *); |
| static void qla2x00_mem_free(scsi_qla_host_t *ha); |
| static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha); |
| static void qla2x00_free_sp_pool(scsi_qla_host_t *ha); |
| static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *); |
| void qla2x00_sp_compl(scsi_qla_host_t *ha, 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 |
| strcat(str, "<unknown> "); |
| 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; |
| } |
| |
| 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); |
| } |
| |
| 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_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; |
| |
| atomic_set(&sp->ref_count, 1); |
| 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 = to_qla_host(cmd->device->host); |
| fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; |
| srb_t *sp; |
| int rval; |
| |
| if (!fcport) { |
| cmd->result = DID_NO_CONNECT << 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 = to_qla_host(cmd->device->host); |
| fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; |
| srb_t *sp; |
| int rval; |
| |
| if (!fcport) { |
| cmd->result = DID_NO_CONNECT << 16; |
| goto qc24_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 qc24_fail_command; |
| } |
| goto qc24_host_busy; |
| } |
| |
| spin_unlock_irq(ha->host->host_lock); |
| |
| sp = qla2x00_get_new_sp(ha, 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(ha, sp); |
| mempool_free(sp, ha->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 |
| */ |
| static int |
| qla2x00_wait_for_hba_online(scsi_qla_host_t *ha) |
| { |
| int return_status; |
| unsigned long wait_online; |
| |
| wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ); |
| while (((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) || |
| test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) || |
| test_bit(ISP_ABORT_RETRY, &ha->dpc_flags) || |
| ha->dpc_active) && time_before(jiffies, wait_online)) { |
| |
| msleep(1000); |
| } |
| if (ha->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 ; |
| |
| /* wait for 5 min at the max for loop to be ready */ |
| loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ); |
| |
| while ((!atomic_read(&ha->loop_down_timer) && |
| atomic_read(&ha->loop_state) == LOOP_DOWN) || |
| atomic_read(&ha->loop_state) != LOOP_READY) { |
| msleep(1000); |
| if (time_after_eq(jiffies, loop_timeout)) { |
| return_status = QLA_FUNCTION_FAILED; |
| break; |
| } |
| } |
| return (return_status); |
| } |
| |
| /************************************************************************** |
| * 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: |
| **************************************************************************/ |
| int |
| qla2xxx_eh_abort(struct scsi_cmnd *cmd) |
| { |
| scsi_qla_host_t *ha = to_qla_host(cmd->device->host); |
| srb_t *sp; |
| int ret, i; |
| unsigned int id, lun; |
| unsigned long serial; |
| unsigned long flags; |
| |
| if (!CMD_SP(cmd)) |
| return FAILED; |
| |
| ret = FAILED; |
| |
| id = cmd->device->id; |
| lun = cmd->device->lun; |
| serial = cmd->serial_number; |
| |
| /* Check active list for command command. */ |
| spin_lock_irqsave(&ha->hardware_lock, flags); |
| for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) { |
| sp = ha->outstanding_cmds[i]; |
| |
| if (sp == NULL) |
| continue; |
| |
| if (sp->cmd != cmd) |
| continue; |
| |
| DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld " |
| "sp->state=%x\n", __func__, ha->host_no, sp, serial, |
| sp->state)); |
| DEBUG3(qla2x00_print_scsi_cmd(cmd);) |
| |
| spin_unlock_irqrestore(&ha->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)); |
| ret = SUCCESS; |
| } |
| spin_lock_irqsave(&ha->hardware_lock, flags); |
| |
| break; |
| } |
| spin_unlock_irqrestore(&ha->hardware_lock, flags); |
| |
| /* Wait for the command to be returned. */ |
| if (ret == SUCCESS) { |
| 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); |
| } |
| } |
| |
| qla_printk(KERN_INFO, ha, |
| "scsi(%ld:%d:%d): Abort command issued -- %lx %x.\n", ha->host_no, |
| id, lun, 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; |
| |
| 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(&ha->hardware_lock, flags); |
| sp = ha->outstanding_cmds[cnt]; |
| if (sp) { |
| cmd = sp->cmd; |
| spin_unlock_irqrestore(&ha->hardware_lock, flags); |
| if (cmd->device->id == t) { |
| if (!qla2x00_eh_wait_on_command(ha, cmd)) { |
| status = 1; |
| break; |
| } |
| } |
| } else { |
| spin_unlock_irqrestore(&ha->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). |
| * |
| **************************************************************************/ |
| int |
| qla2xxx_eh_device_reset(struct scsi_cmnd *cmd) |
| { |
| scsi_qla_host_t *ha = to_qla_host(cmd->device->host); |
| fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; |
| srb_t *sp; |
| int ret; |
| unsigned int id, lun; |
| unsigned long serial; |
| |
| ret = FAILED; |
| |
| id = cmd->device->id; |
| lun = cmd->device->lun; |
| serial = cmd->serial_number; |
| |
| sp = (srb_t *) CMD_SP(cmd); |
| if (!sp || !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; |
| |
| #if defined(LOGOUT_AFTER_DEVICE_RESET) |
| if (ret == SUCCESS) { |
| if (fcport->flags & FC_FABRIC_DEVICE) { |
| ha->isp_ops.fabric_logout(ha, fcport->loop_id); |
| qla2x00_mark_device_lost(ha, fcport); |
| } |
| } |
| #endif |
| } 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; |
| } |
| |
| /* |
| * If we are coming down the EH path, wait for all commands to |
| * complete for the device. |
| */ |
| if (cmd->device->host->eh_active) { |
| 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__); |
| |
| goto eh_dev_reset_done; |
| } |
| } |
| |
| 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). |
| * |
| **************************************************************************/ |
| int |
| qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd) |
| { |
| scsi_qla_host_t *ha = to_qla_host(cmd->device->host); |
| fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; |
| srb_t *sp; |
| int ret; |
| unsigned int id, lun; |
| unsigned long serial; |
| |
| ret = FAILED; |
| |
| id = cmd->device->id; |
| lun = cmd->device->lun; |
| serial = cmd->serial_number; |
| |
| sp = (srb_t *) CMD_SP(cmd); |
| if (!sp || !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; |
| |
| /* Waiting for our command in done_queue to be returned to OS.*/ |
| if (cmd->device->host->eh_active) |
| if (!qla2x00_eh_wait_for_pending_commands(ha)) |
| 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: |
| **************************************************************************/ |
| int |
| qla2xxx_eh_host_reset(struct scsi_cmnd *cmd) |
| { |
| scsi_qla_host_t *ha = to_qla_host(cmd->device->host); |
| fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; |
| srb_t *sp; |
| int ret; |
| unsigned int id, lun; |
| unsigned long serial; |
| |
| ret = FAILED; |
| |
| id = cmd->device->id; |
| lun = cmd->device->lun; |
| serial = cmd->serial_number; |
| |
| sp = (srb_t *) CMD_SP(cmd); |
| if (!sp || !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, &ha->dpc_flags); |
| if (qla2x00_abort_isp(ha)) { |
| clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags); |
| /* failed. schedule dpc to try */ |
| set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); |
| |
| if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) |
| goto eh_host_reset_lock; |
| } |
| clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags); |
| |
| /* Waiting for our command in done_queue to be returned to OS.*/ |
| if (qla2x00_eh_wait_for_pending_commands(ha)) |
| ret = SUCCESS; |
| |
| 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 |
| */ |
| static int |
| qla2x00_loop_reset(scsi_qla_host_t *ha) |
| { |
| int status = QLA_SUCCESS; |
| struct fc_port *fcport; |
| |
| if (ha->flags.enable_lip_reset) { |
| status = qla2x00_lip_reset(ha); |
| } |
| |
| if (status == QLA_SUCCESS && ha->flags.enable_target_reset) { |
| list_for_each_entry(fcport, &ha->fcports, list) { |
| if (fcport->port_type != FCT_TARGET) |
| continue; |
| |
| status = qla2x00_device_reset(ha, fcport); |
| if (status != QLA_SUCCESS) |
| break; |
| } |
| } |
| |
| if (status == QLA_SUCCESS && |
| ((!ha->flags.enable_target_reset && |
| !ha->flags.enable_lip_reset) || |
| ha->flags.enable_lip_full_login)) { |
| |
| status = qla2x00_full_login_lip(ha); |
| } |
| |
| /* Issue marker command only when we are going to start the I/O */ |
| ha->marker_needed = 1; |
| |
| if (status) { |
| /* Empty */ |
| DEBUG2_3(printk("%s(%ld): **** FAILED ****\n", |
| __func__, |
| ha->host_no);) |
| } else { |
| /* Empty */ |
| DEBUG3(printk("%s(%ld): exiting normally.\n", |
| __func__, |
| ha->host_no);) |
| } |
| |
| return(status); |
| } |
| |
| /* |
| * 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); |
| } |
| |
| static int |
| qla2xxx_slave_alloc(struct scsi_device *sdev) |
| { |
| struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); |
| |
| if (!rport) |
| return -ENXIO; |
| |
| sdev->hostdata = rport->dd_data; |
| |
| return 0; |
| } |
| |
| static int |
| qla2xxx_slave_configure(struct scsi_device *sdev) |
| { |
| scsi_qla_host_t *ha = to_qla_host(sdev->host); |
| struct fc_rport *rport = starget_to_rport(sdev->sdev_target); |
| |
| if (sdev->tagged_supported) |
| scsi_activate_tcq(sdev, 32); |
| else |
| scsi_deactivate_tcq(sdev, 32); |
| |
| 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 int |
| qla2x00_iospace_config(scsi_qla_host_t *ha) |
| { |
| unsigned long pio, pio_len, pio_flags; |
| unsigned long mmio, mmio_len, mmio_flags; |
| |
| /* We only need PIO for Flash operations on ISP2312 v2 chips. */ |
| pio = pci_resource_start(ha->pdev, 0); |
| pio_len = pci_resource_len(ha->pdev, 0); |
| pio_flags = pci_resource_flags(ha->pdev, 0); |
| if (pio_flags & IORESOURCE_IO) { |
| if (pio_len < 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; |
| } |
| |
| /* Use MMIO operations for all accesses. */ |
| mmio = pci_resource_start(ha->pdev, 1); |
| mmio_len = pci_resource_len(ha->pdev, 1); |
| mmio_flags = pci_resource_flags(ha->pdev, 1); |
| |
| if (!(mmio_flags & IORESOURCE_MEM)) { |
| qla_printk(KERN_ERR, ha, |
| "region #0 not an MMIO resource (%s), aborting\n", |
| pci_name(ha->pdev)); |
| goto iospace_error_exit; |
| } |
| if (mmio_len < MIN_IOBASE_LEN) { |
| qla_printk(KERN_ERR, ha, |
| "Invalid PCI mem region size (%s), aborting\n", |
| pci_name(ha->pdev)); |
| goto iospace_error_exit; |
| } |
| |
| if (pci_request_regions(ha->pdev, ha->brd_info->drv_name)) { |
| qla_printk(KERN_WARNING, ha, |
| "Failed to reserve PIO/MMIO regions (%s)\n", |
| pci_name(ha->pdev)); |
| |
| goto iospace_error_exit; |
| } |
| |
| ha->pio_address = pio; |
| ha->pio_length = pio_len; |
| ha->iobase = ioremap(mmio, 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 |
| 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); |
| } |
| |
| /* |
| * PCI driver interface |
| */ |
| int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info) |
| { |
| int ret = -ENODEV; |
| device_reg_t __iomem *reg; |
| struct Scsi_Host *host; |
| scsi_qla_host_t *ha; |
| unsigned long flags = 0; |
| unsigned long wait_switch = 0; |
| char pci_info[20]; |
| char fw_str[30]; |
| fc_port_t *fcport; |
| |
| if (pci_enable_device(pdev)) |
| goto probe_out; |
| |
| host = scsi_host_alloc(brd_info->sht ? brd_info->sht: |
| &qla2x00_driver_template, 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 = (scsi_qla_host_t *)host->hostdata; |
| memset(ha, 0, sizeof(scsi_qla_host_t)); |
| |
| ha->pdev = pdev; |
| ha->host = host; |
| ha->host_no = host->host_no; |
| ha->brd_info = brd_info; |
| sprintf(ha->host_str, "%s_%ld", ha->brd_info->drv_name, ha->host_no); |
| |
| ha->dpc_pid = -1; |
| |
| /* Configure PCI I/O space */ |
| ret = qla2x00_iospace_config(ha); |
| if (ret) |
| goto probe_failed; |
| |
| qla_printk(KERN_INFO, ha, |
| "Found an %s, irq %d, iobase 0x%p\n", ha->brd_info->isp_name, |
| pdev->irq, ha->iobase); |
| |
| spin_lock_init(&ha->hardware_lock); |
| |
| ha->prev_topology = 0; |
| ha->ports = MAX_BUSES; |
| ha->init_cb_size = sizeof(init_cb_t); |
| ha->mgmt_svr_loop_id = MANAGEMENT_SERVER; |
| |
| /* Assign ISP specific operations. */ |
| ha->isp_ops.pci_config = qla2100_pci_config; |
| ha->isp_ops.reset_chip = qla2x00_reset_chip; |
| ha->isp_ops.chip_diag = qla2x00_chip_diag; |
| ha->isp_ops.config_rings = qla2x00_config_rings; |
| ha->isp_ops.reset_adapter = qla2x00_reset_adapter; |
| ha->isp_ops.nvram_config = qla2x00_nvram_config; |
| ha->isp_ops.update_fw_options = qla2x00_update_fw_options; |
| ha->isp_ops.load_risc = qla2x00_load_risc; |
| ha->isp_ops.pci_info_str = qla2x00_pci_info_str; |
| ha->isp_ops.fw_version_str = qla2x00_fw_version_str; |
| ha->isp_ops.intr_handler = qla2100_intr_handler; |
| ha->isp_ops.enable_intrs = qla2x00_enable_intrs; |
| ha->isp_ops.disable_intrs = qla2x00_disable_intrs; |
| ha->isp_ops.abort_command = qla2x00_abort_command; |
| ha->isp_ops.abort_target = qla2x00_abort_target; |
| ha->isp_ops.fabric_login = qla2x00_login_fabric; |
| ha->isp_ops.fabric_logout = qla2x00_fabric_logout; |
| ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_32; |
| ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_32; |
| ha->isp_ops.prep_ms_iocb = qla2x00_prep_ms_iocb; |
| ha->isp_ops.prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb; |
| ha->isp_ops.read_nvram = qla2x00_read_nvram_data; |
| ha->isp_ops.write_nvram = qla2x00_write_nvram_data; |
| ha->isp_ops.fw_dump = qla2100_fw_dump; |
| ha->isp_ops.ascii_fw_dump = qla2100_ascii_fw_dump; |
| 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; |
| } 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; |
| } 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->isp_ops.pci_config = qla2300_pci_config; |
| ha->isp_ops.intr_handler = qla2300_intr_handler; |
| ha->isp_ops.fw_dump = qla2300_fw_dump; |
| ha->isp_ops.ascii_fw_dump = qla2300_ascii_fw_dump; |
| ha->gid_list_info_size = 6; |
| } else if (IS_QLA24XX(ha) || 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 init_cb_24xx); |
| ha->mgmt_svr_loop_id = 10; |
| ha->isp_ops.pci_config = qla24xx_pci_config; |
| ha->isp_ops.reset_chip = qla24xx_reset_chip; |
| ha->isp_ops.chip_diag = qla24xx_chip_diag; |
| ha->isp_ops.config_rings = qla24xx_config_rings; |
| ha->isp_ops.reset_adapter = qla24xx_reset_adapter; |
| ha->isp_ops.nvram_config = qla24xx_nvram_config; |
| ha->isp_ops.update_fw_options = qla24xx_update_fw_options; |
| ha->isp_ops.load_risc = qla24xx_load_risc_flash; |
| if (ql2xfwloadbin) |
| ha->isp_ops.load_risc = qla24xx_load_risc_hotplug; |
| ha->isp_ops.pci_info_str = qla24xx_pci_info_str; |
| ha->isp_ops.fw_version_str = qla24xx_fw_version_str; |
| ha->isp_ops.intr_handler = qla24xx_intr_handler; |
| ha->isp_ops.enable_intrs = qla24xx_enable_intrs; |
| ha->isp_ops.disable_intrs = qla24xx_disable_intrs; |
| ha->isp_ops.abort_command = qla24xx_abort_command; |
| ha->isp_ops.abort_target = qla24xx_abort_target; |
| ha->isp_ops.fabric_login = qla24xx_login_fabric; |
| ha->isp_ops.fabric_logout = qla24xx_fabric_logout; |
| ha->isp_ops.prep_ms_iocb = qla24xx_prep_ms_iocb; |
| ha->isp_ops.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb; |
| ha->isp_ops.read_nvram = qla24xx_read_nvram_data; |
| ha->isp_ops.write_nvram = qla24xx_write_nvram_data; |
| ha->isp_ops.fw_dump = qla24xx_fw_dump; |
| ha->isp_ops.ascii_fw_dump = qla24xx_ascii_fw_dump; |
| ha->gid_list_info_size = 8; |
| } |
| 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->mbx_cmd_sem); |
| init_MUTEX_LOCKED(&ha->mbx_intr_sem); |
| |
| INIT_LIST_HEAD(&ha->list); |
| INIT_LIST_HEAD(&ha->fcports); |
| INIT_LIST_HEAD(&ha->rscn_fcports); |
| |
| /* |
| * These locks are used to prevent more than one CPU |
| * from modifying the queue at the same time. The |
| * higher level "host_lock" will reduce most |
| * contention for these locks. |
| */ |
| spin_lock_init(&ha->mbx_reg_lock); |
| |
| init_completion(&ha->dpc_inited); |
| init_completion(&ha->dpc_exited); |
| |
| 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) && |
| !(ha->device_flags & DFLG_NO_CABLE)) { |
| |
| 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_should_die = 0; |
| ha->dpc_pid = kernel_thread(qla2x00_do_dpc, ha, 0); |
| if (ha->dpc_pid < 0) { |
| qla_printk(KERN_WARNING, ha, |
| "Unable to start DPC thread!\n"); |
| |
| ret = -ENODEV; |
| goto probe_failed; |
| } |
| wait_for_completion(&ha->dpc_inited); |
| |
| host->this_id = 255; |
| host->cmd_per_lun = 3; |
| host->unique_id = ha->instance; |
| host->max_cmd_len = MAX_CMDSZ; |
| host->max_channel = ha->ports - 1; |
| host->max_lun = MAX_LUNS; |
| host->transportt = qla2xxx_transport_template; |
| |
| ret = request_irq(pdev->irq, ha->isp_ops.intr_handler, |
| SA_INTERRUPT|SA_SHIRQ, ha->brd_info->drv_name, ha); |
| if (ret) { |
| qla_printk(KERN_WARNING, ha, |
| "Failed to reserve interrupt %d already in use.\n", |
| pdev->irq); |
| goto probe_failed; |
| } |
| host->irq = pdev->irq; |
| |
| /* 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)); |
| |
| ha->isp_ops.disable_intrs(ha); |
| |
| spin_lock_irqsave(&ha->hardware_lock, flags); |
| reg = ha->iobase; |
| if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) { |
| WRT_REG_DWORD(®->isp24.hccr, HCCRX_CLR_HOST_INT); |
| WRT_REG_DWORD(®->isp24.hccr, HCCRX_CLR_RISC_INT); |
| } else { |
| WRT_REG_WORD(®->isp.semaphore, 0); |
| WRT_REG_WORD(®->isp.hccr, HCCR_CLR_RISC_INT); |
| WRT_REG_WORD(®->isp.hccr, HCCR_CLR_HOST_INT); |
| |
| /* Enable proper parity */ |
| if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) { |
| if (IS_QLA2300(ha)) |
| /* SRAM parity */ |
| WRT_REG_WORD(®->isp.hccr, |
| (HCCR_ENABLE_PARITY + 0x1)); |
| else |
| /* SRAM, Instruction RAM and GP RAM parity */ |
| WRT_REG_WORD(®->isp.hccr, |
| (HCCR_ENABLE_PARITY + 0x7)); |
| } |
| } |
| spin_unlock_irqrestore(&ha->hardware_lock, flags); |
| |
| ha->isp_ops.enable_intrs(ha); |
| |
| /* v2.19.5b6 */ |
| /* |
| * Wait around max loop_reset_delay secs for the devices to come |
| * on-line. We don't want Linux scanning before we are ready. |
| * |
| */ |
| for (wait_switch = jiffies + (ha->loop_reset_delay * HZ); |
| time_before(jiffies,wait_switch) && |
| !(ha->device_flags & (DFLG_NO_CABLE | DFLG_FABRIC_DEVICES)) |
| && (ha->device_flags & SWITCH_FOUND) ;) { |
| |
| qla2x00_check_fabric_devices(ha); |
| |
| msleep(10); |
| } |
| |
| pci_set_drvdata(pdev, ha); |
| ha->flags.init_done = 1; |
| num_hosts++; |
| |
| ret = scsi_add_host(host, &pdev->dev); |
| if (ret) |
| goto probe_failed; |
| |
| qla2x00_alloc_sysfs_attr(ha); |
| |
| qla2x00_init_host_attr(ha); |
| |
| qla_printk(KERN_INFO, ha, "\n" |
| " QLogic Fibre Channel HBA Driver: %s\n" |
| " QLogic %s - %s\n" |
| " %s: %s @ %s hdma%c, host#=%ld, fw=%s\n", qla2x00_version_str, |
| ha->model_number, ha->model_desc ? ha->model_desc: "", |
| ha->brd_info->isp_name, 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)); |
| |
| /* Go with fc_rport registration. */ |
| list_for_each_entry(fcport, &ha->fcports, list) |
| qla2x00_reg_remote_port(ha, fcport); |
| |
| return 0; |
| |
| probe_failed: |
| qla2x00_free_device(ha); |
| |
| scsi_host_put(host); |
| |
| probe_disable_device: |
| pci_disable_device(pdev); |
| |
| probe_out: |
| return ret; |
| } |
| EXPORT_SYMBOL_GPL(qla2x00_probe_one); |
| |
| void qla2x00_remove_one(struct pci_dev *pdev) |
| { |
| scsi_qla_host_t *ha; |
| |
| ha = pci_get_drvdata(pdev); |
| |
| 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_set_drvdata(pdev, NULL); |
| } |
| EXPORT_SYMBOL_GPL(qla2x00_remove_one); |
| |
| static void |
| qla2x00_free_device(scsi_qla_host_t *ha) |
| { |
| int ret; |
| |
| /* Abort any outstanding IO descriptors. */ |
| if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) |
| qla2x00_cancel_io_descriptors(ha); |
| |
| /* Disable timer */ |
| if (ha->timer_active) |
| qla2x00_stop_timer(ha); |
| |
| /* Kill the kernel thread for this host */ |
| if (ha->dpc_pid >= 0) { |
| ha->dpc_should_die = 1; |
| wmb(); |
| ret = kill_proc(ha->dpc_pid, SIGHUP, 1); |
| if (ret) { |
| qla_printk(KERN_ERR, ha, |
| "Unable to signal DPC thread -- (%d)\n", ret); |
| |
| /* TODO: SOMETHING MORE??? */ |
| } else { |
| wait_for_completion(&ha->dpc_exited); |
| } |
| } |
| |
| /* Stop currently executing firmware. */ |
| qla2x00_stop_firmware(ha); |
| |
| /* turn-off interrupts on the card */ |
| if (ha->interrupts_on) |
| ha->isp_ops.disable_intrs(ha); |
| |
| qla2x00_mem_free(ha); |
| |
| ha->flags.online = 0; |
| |
| /* Detach interrupts */ |
| if (ha->pdev->irq) |
| free_irq(ha->pdev->irq, ha); |
| |
| /* release io space registers */ |
| if (ha->iobase) |
| iounmap(ha->iobase); |
| pci_release_regions(ha->pdev); |
| |
| pci_disable_device(ha->pdev); |
| } |
| |
| /* |
| * 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) |
| { |
| if (atomic_read(&fcport->state) == FCS_ONLINE && fcport->rport) |
| fc_remote_port_block(fcport->rport); |
| /* |
| * 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) |
| { |
| fc_port_t *fcport; |
| |
| list_for_each_entry(fcport, &ha->fcports, list) { |
| if (fcport->port_type != FCT_TARGET) |
| 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 && fcport->rport) |
| fc_remote_port_block(fcport->rport); |
| atomic_set(&fcport->state, FCS_DEVICE_LOST); |
| } |
| } |
| |
| /* |
| * qla2x00_mem_alloc |
| * Allocates adapter memory. |
| * |
| * Returns: |
| * 0 = success. |
| * 1 = failure. |
| */ |
| static uint8_t |
| qla2x00_mem_alloc(scsi_qla_host_t *ha) |
| { |
| char name[16]; |
| uint8_t status = 1; |
| int retry= 10; |
| |
| do { |
| /* |
| * This will loop only once if everything goes well, else some |
| * number of retries will be performed to get around a kernel |
| * bug where available mem is not allocated until after a |
| * little delay and a retry. |
| */ |
| 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 == NULL) { |
| qla_printk(KERN_WARNING, ha, |
| "Memory Allocation failed - request_ring\n"); |
| |
| qla2x00_mem_free(ha); |
| msleep(100); |
| |
| continue; |
| } |
| |
| 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 == NULL) { |
| qla_printk(KERN_WARNING, ha, |
| "Memory Allocation failed - response_ring\n"); |
| |
| qla2x00_mem_free(ha); |
| msleep(100); |
| |
| continue; |
| } |
| |
| ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE, |
| &ha->gid_list_dma, GFP_KERNEL); |
| if (ha->gid_list == NULL) { |
| qla_printk(KERN_WARNING, ha, |
| "Memory Allocation failed - gid_list\n"); |
| |
| qla2x00_mem_free(ha); |
| msleep(100); |
| |
| continue; |
| } |
| |
| ha->rlc_rsp = dma_alloc_coherent(&ha->pdev->dev, |
| sizeof(rpt_lun_cmd_rsp_t), &ha->rlc_rsp_dma, GFP_KERNEL); |
| if (ha->rlc_rsp == NULL) { |
| qla_printk(KERN_WARNING, ha, |
| "Memory Allocation failed - rlc"); |
| |
| qla2x00_mem_free(ha); |
| msleep(100); |
| |
| continue; |
| } |
| |
| snprintf(name, sizeof(name), "qla2xxx_%ld", ha->host_no); |
| ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev, |
| DMA_POOL_SIZE, 8, 0); |
| if (ha->s_dma_pool == NULL) { |
| qla_printk(KERN_WARNING, ha, |
| "Memory Allocation failed - s_dma_pool\n"); |
| |
| qla2x00_mem_free(ha); |
| msleep(100); |
| |
| continue; |
| } |
| |
| /* get consistent memory allocated for init control block */ |
| ha->init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, |
| &ha->init_cb_dma); |
| if (ha->init_cb == NULL) { |
| qla_printk(KERN_WARNING, ha, |
| "Memory Allocation failed - init_cb\n"); |
| |
| qla2x00_mem_free(ha); |
| msleep(100); |
| |
| continue; |
| } |
| memset(ha->init_cb, 0, ha->init_cb_size); |
| |
| /* Get consistent memory allocated for Get Port Database cmd */ |
| ha->iodesc_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, |
| &ha->iodesc_pd_dma); |
| if (ha->iodesc_pd == NULL) { |
| /* error */ |
| qla_printk(KERN_WARNING, ha, |
| "Memory Allocation failed - iodesc_pd\n"); |
| |
| qla2x00_mem_free(ha); |
| msleep(100); |
| |
| continue; |
| } |
| memset(ha->iodesc_pd, 0, PORT_DATABASE_SIZE); |
| |
| /* Allocate ioctl related memory. */ |
| if (qla2x00_alloc_ioctl_mem(ha)) { |
| qla_printk(KERN_WARNING, ha, |
| "Memory Allocation failed - ioctl_mem\n"); |
| |
| qla2x00_mem_free(ha); |
| msleep(100); |
| |
| continue; |
| } |
| |
| if (qla2x00_allocate_sp_pool(ha)) { |
| qla_printk(KERN_WARNING, ha, |
| "Memory Allocation failed - " |
| "qla2x00_allocate_sp_pool()\n"); |
| |
| qla2x00_mem_free(ha); |
| msleep(100); |
| |
| continue; |
| } |
| |
| /* 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 == NULL) { |
| /* error */ |
| qla_printk(KERN_WARNING, ha, |
| "Memory Allocation failed - sns_cmd\n"); |
| |
| qla2x00_mem_free(ha); |
| msleep(100); |
| |
| continue; |
| } |
| memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt)); |
| } 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 == NULL) { |
| /* error */ |
| qla_printk(KERN_WARNING, ha, |
| "Memory Allocation failed - ms_iocb\n"); |
| |
| qla2x00_mem_free(ha); |
| msleep(100); |
| |
| continue; |
| } |
| memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t)); |
| |
| /* |
| * 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 == NULL) { |
| /* error */ |
| qla_printk(KERN_WARNING, ha, |
| "Memory Allocation failed - ct_sns\n"); |
| |
| qla2x00_mem_free(ha); |
| msleep(100); |
| |
| continue; |
| } |
| memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt)); |
| } |
| |
| /* Done all allocations without any error. */ |
| status = 0; |
| |
| } while (retry-- && status != 0); |
| |
| if (status) { |
| printk(KERN_WARNING |
| "%s(): **** FAILED ****\n", __func__); |
| } |
| |
| return(status); |
| } |
| |
| /* |
| * 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; |
| unsigned int wtime;/* max wait time if mbx cmd is busy. */ |
| |
| if (ha == NULL) { |
| /* error */ |
| DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__)); |
| return; |
| } |
| |
| /* Make sure all other threads are stopped. */ |
| wtime = 60 * 1000; |
| while (ha->dpc_wait && wtime) |
| wtime = msleep_interruptible(wtime); |
| |
| /* free ioctl memory */ |
| qla2x00_free_ioctl_mem(ha); |
| |
| /* free sp pool */ |
| qla2x00_free_sp_pool(ha); |
| |
| 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->ms_iocb) |
| dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma); |
| |
| if (ha->iodesc_pd) |
| dma_pool_free(ha->s_dma_pool, ha->iodesc_pd, ha->iodesc_pd_dma); |
| |
| if (ha->init_cb) |
| dma_pool_free(ha->s_dma_pool, ha->init_cb, ha->init_cb_dma); |
| |
| if (ha->s_dma_pool) |
| dma_pool_destroy(ha->s_dma_pool); |
| |
| if (ha->rlc_rsp) |
| dma_free_coherent(&ha->pdev->dev, |
| sizeof(rpt_lun_cmd_rsp_t), ha->rlc_rsp, |
| ha->rlc_rsp_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->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->iodesc_pd = NULL; |
| ha->iodesc_pd_dma = 0; |
| ha->init_cb = NULL; |
| ha->init_cb_dma = 0; |
| |
| ha->s_dma_pool = NULL; |
| |
| ha->rlc_rsp = NULL; |
| ha->rlc_rsp_dma = 0; |
| 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); |
| |
| if (ha->fw_dump) |
| free_pages((unsigned long)ha->fw_dump, ha->fw_dump_order); |
| |
| vfree(ha->fw_dump24); |
| |
| vfree(ha->fw_dump_buffer); |
| |
| ha->fw_dump = NULL; |
| ha->fw_dump24 = NULL; |
| ha->fw_dumped = 0; |
| ha->fw_dump_reading = 0; |
| ha->fw_dump_buffer = NULL; |
| } |
| |
| /* |
| * qla2x00_allocate_sp_pool |
| * This routine is called during initialization to allocate |
| * memory for local srb_t. |
| * |
| * Input: |
| * ha = adapter block pointer. |
| * |
| * Context: |
| * Kernel context. |
| * |
| * Note: Sets the ref_count for non Null sp to one. |
| */ |
| static int |
| qla2x00_allocate_sp_pool(scsi_qla_host_t *ha) |
| { |
| int rval; |
| |
| rval = QLA_SUCCESS; |
| ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab, |
| mempool_free_slab, srb_cachep); |
| if (ha->srb_mempool == NULL) { |
| qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n"); |
| rval = QLA_FUNCTION_FAILED; |
| } |
| return (rval); |
| } |
| |
| /* |
| * This routine frees all adapter allocated memory. |
| * |
| */ |
| static void |
| qla2x00_free_sp_pool( scsi_qla_host_t *ha) |
| { |
| if (ha->srb_mempool) { |
| mempool_destroy(ha->srb_mempool); |
| ha->srb_mempool = NULL; |
| } |
| } |
| |
| /************************************************************************** |
| * 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) |
| { |
| DECLARE_MUTEX_LOCKED(sem); |
| scsi_qla_host_t *ha; |
| fc_port_t *fcport; |
| uint8_t status; |
| uint16_t next_loopid; |
| |
| ha = (scsi_qla_host_t *)data; |
| |
| lock_kernel(); |
| |
| daemonize("%s_dpc", ha->host_str); |
| allow_signal(SIGHUP); |
| |
| ha->dpc_wait = &sem; |
| |
| set_user_nice(current, -20); |
| |
| unlock_kernel(); |
| |
| complete(&ha->dpc_inited); |
| |
| while (1) { |
| DEBUG3(printk("qla2x00: DPC handler sleeping\n")); |
| |
| if (down_interruptible(&sem)) |
| break; |
| |
| if (ha->dpc_should_die) |
| break; |
| |
| DEBUG3(printk("qla2x00: DPC handler waking up\n")); |
| |
| /* Initialization not yet finished. Don't do anything yet. */ |
| if (!ha->flags.init_done || ha->dpc_active) |
| 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; |
| } |
| |
| 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); |
| } |
| DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n", |
| ha->host_no)); |
| } |
| |
| 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 (fcport->port_type != FCT_TARGET) |
| continue; |
| |
| /* |
| * 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) { |
| |
| 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->loop_id); |
| |
| 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)); |
| |
| fcport->port_login_retry_count = |
| ha->port_down_retry_count * PORT_RETRY_TIME; |
| atomic_set(&fcport->state, FCS_ONLINE); |
| atomic_set(&fcport->port_down_timer, |
| ha->port_down_retry_count * PORT_RETRY_TIME); |
| |
| fcport->login_retry = 0; |
| } 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 (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))) { |
| |
| 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); |
| |
| 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_wait = NULL; |
| ha->dpc_active = 0; |
| |
| complete_and_exit(&ha->dpc_exited, 0); |
| } |
| |
| /* |
| * 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) { |
| if (cmd->use_sg) { |
| dma_unmap_sg(&ha->pdev->dev, cmd->request_buffer, |
| cmd->use_sg, cmd->sc_data_direction); |
| } else if (cmd->request_bufflen) { |
| dma_unmap_single(&ha->pdev->dev, sp->dma_handle, |
| cmd->request_bufflen, cmd->sc_data_direction); |
| } |
| 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 |
| ***************************************************************************/ |
| static 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; |
| |
| /* |
| * 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. */ |
| 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))); |
| } |
| |
| /* Schedule the DPC routine if needed */ |
| if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) || |
| test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) || |
| start_dpc || |
| test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) || |
| test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) || |
| test_bit(RELOGIN_NEEDED, &ha->dpc_flags)) && |
| ha->dpc_wait && !ha->dpc_active) { |
| |
| up(ha->dpc_wait); |
| } |
| |
| qla2x00_restart_timer(ha, WATCH_INTERVAL); |
| } |
| |
| /* XXX(hch): crude hack to emulate a down_timeout() */ |
| int |
| qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout) |
| { |
| const unsigned int step = 100; /* msecs */ |
| unsigned int iterations = jiffies_to_msecs(timeout)/100; |
| |
| do { |
| if (!down_trylock(sema)) |
| return 0; |
| if (msleep_interruptible(step)) |
| break; |
| } while (--iterations >= 0); |
| |
| return -ETIMEDOUT; |
| } |
| |
| static struct qla_board_info qla_board_tbl[] = { |
| { |
| .drv_name = "qla2400", |
| .isp_name = "ISP2422", |
| .fw_fname = "ql2400_fw.bin", |
| .sht = &qla24xx_driver_template, |
| }, |
| { |
| .drv_name = "qla2400", |
| .isp_name = "ISP2432", |
| .fw_fname = "ql2400_fw.bin", |
| .sht = &qla24xx_driver_template, |
| }, |
| }; |
| |
| static struct pci_device_id qla2xxx_pci_tbl[] = { |
| { |
| .vendor = PCI_VENDOR_ID_QLOGIC, |
| .device = PCI_DEVICE_ID_QLOGIC_ISP2422, |
| .subvendor = PCI_ANY_ID, |
| .subdevice = PCI_ANY_ID, |
| .driver_data = (unsigned long)&qla_board_tbl[0], |
| }, |
| { |
| .vendor = PCI_VENDOR_ID_QLOGIC, |
| .device = PCI_DEVICE_ID_QLOGIC_ISP2432, |
| .subvendor = PCI_ANY_ID, |
| .subdevice = PCI_ANY_ID, |
| .driver_data = (unsigned long)&qla_board_tbl[1], |
| }, |
| {0, 0}, |
| }; |
| MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl); |
| |
| static int __devinit |
| qla2xxx_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) |
| { |
| return qla2x00_probe_one(pdev, |
| (struct qla_board_info *)id->driver_data); |
| } |
| |
| static void __devexit |
| qla2xxx_remove_one(struct pci_dev *pdev) |
| { |
| qla2x00_remove_one(pdev); |
| } |
| |
| static struct pci_driver qla2xxx_pci_driver = { |
| .name = "qla2xxx", |
| .id_table = qla2xxx_pci_tbl, |
| .probe = qla2xxx_probe_one, |
| .remove = __devexit_p(qla2xxx_remove_one), |
| }; |
| |
| /** |
| * 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, 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 DEBUG_QLA2100 |
| strcat(qla2x00_version_str, "-debug"); |
| #endif |
| qla2xxx_transport_template = |
| fc_attach_transport(&qla2xxx_transport_functions); |
| if (!qla2xxx_transport_template) |
| return -ENODEV; |
| |
| printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n"); |
| ret = pci_module_init(&qla2xxx_pci_driver); |
| if (ret) { |
| kmem_cache_destroy(srb_cachep); |
| fc_release_transport(qla2xxx_transport_template); |
| } |
| return ret; |
| } |
| |
| /** |
| * qla2x00_module_exit - Module cleanup. |
| **/ |
| static void __exit |
| qla2x00_module_exit(void) |
| { |
| pci_unregister_driver(&qla2xxx_pci_driver); |
| kmem_cache_destroy(srb_cachep); |
| fc_release_transport(qla2xxx_transport_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); |