diff options
Diffstat (limited to 'drivers/scsi/qla4xxx/ql4_init.c')
| -rw-r--r-- | drivers/scsi/qla4xxx/ql4_init.c | 413 |
1 files changed, 357 insertions, 56 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c index 3075fbaef55..6f12f859b11 100644 --- a/drivers/scsi/qla4xxx/ql4_init.c +++ b/drivers/scsi/qla4xxx/ql4_init.c @@ -1,6 +1,6 @@ /* * QLogic iSCSI HBA Driver - * Copyright (c) 2003-2010 QLogic Corporation + * Copyright (c) 2003-2013 QLogic Corporation * * See LICENSE.qla4xxx for copyright and licensing details. */ @@ -86,6 +86,7 @@ static void qla4xxx_init_response_q_entries(struct scsi_qla_host *ha) int qla4xxx_init_rings(struct scsi_qla_host *ha) { unsigned long flags = 0; + int i; /* Initialize request queue. */ spin_lock_irqsave(&ha->hardware_lock, flags); @@ -101,11 +102,18 @@ int qla4xxx_init_rings(struct scsi_qla_host *ha) if (is_qla8022(ha)) { writel(0, - (unsigned long __iomem *)&ha->qla4_8xxx_reg->req_q_out); + (unsigned long __iomem *)&ha->qla4_82xx_reg->req_q_out); + writel(0, + (unsigned long __iomem *)&ha->qla4_82xx_reg->rsp_q_in); + writel(0, + (unsigned long __iomem *)&ha->qla4_82xx_reg->rsp_q_out); + } else if (is_qla8032(ha) || is_qla8042(ha)) { + writel(0, + (unsigned long __iomem *)&ha->qla4_83xx_reg->req_q_in); writel(0, - (unsigned long __iomem *)&ha->qla4_8xxx_reg->rsp_q_in); + (unsigned long __iomem *)&ha->qla4_83xx_reg->rsp_q_in); writel(0, - (unsigned long __iomem *)&ha->qla4_8xxx_reg->rsp_q_out); + (unsigned long __iomem *)&ha->qla4_83xx_reg->rsp_q_out); } else { /* * Initialize DMA Shadow registers. The firmware is really @@ -125,6 +133,10 @@ int qla4xxx_init_rings(struct scsi_qla_host *ha) qla4xxx_init_response_q_entries(ha); + /* Initialize mailbox active array */ + for (i = 0; i < MAX_MRB; i++) + ha->active_mrb_array[i] = NULL; + spin_unlock_irqrestore(&ha->hardware_lock, flags); return QLA_SUCCESS; @@ -183,12 +195,10 @@ exit_get_sys_info_no_free: * @ha: pointer to host adapter structure. * **/ -static int qla4xxx_init_local_data(struct scsi_qla_host *ha) +static void qla4xxx_init_local_data(struct scsi_qla_host *ha) { /* Initialize aen queue */ ha->aen_q_count = MAX_AEN_ENTRIES; - - return qla4xxx_get_firmware_status(ha); } static uint8_t @@ -272,6 +282,120 @@ qla4xxx_wait_for_ip_config(struct scsi_qla_host *ha) return ipv4_wait|ipv6_wait; } +static int qla4_80xx_is_minidump_dma_capable(struct scsi_qla_host *ha, + struct qla4_8xxx_minidump_template_hdr *md_hdr) +{ + int offset = (is_qla8022(ha)) ? QLA8022_TEMPLATE_CAP_OFFSET : + QLA83XX_TEMPLATE_CAP_OFFSET; + int rval = 1; + uint32_t *cap_offset; + + cap_offset = (uint32_t *)((char *)md_hdr + offset); + + if (!(le32_to_cpu(*cap_offset) & BIT_0)) { + ql4_printk(KERN_INFO, ha, "PEX DMA Not supported %d\n", + *cap_offset); + rval = 0; + } + + return rval; +} + +/** + * qla4xxx_alloc_fw_dump - Allocate memory for minidump data. + * @ha: pointer to host adapter structure. + **/ +void qla4xxx_alloc_fw_dump(struct scsi_qla_host *ha) +{ + int status; + uint32_t capture_debug_level; + int hdr_entry_bit, k; + void *md_tmp; + dma_addr_t md_tmp_dma; + struct qla4_8xxx_minidump_template_hdr *md_hdr; + int dma_capable; + + if (ha->fw_dump) { + ql4_printk(KERN_WARNING, ha, + "Firmware dump previously allocated.\n"); + return; + } + + status = qla4xxx_req_template_size(ha); + if (status != QLA_SUCCESS) { + ql4_printk(KERN_INFO, ha, + "scsi%ld: Failed to get template size\n", + ha->host_no); + return; + } + + clear_bit(AF_82XX_FW_DUMPED, &ha->flags); + + /* Allocate memory for saving the template */ + md_tmp = dma_alloc_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size, + &md_tmp_dma, GFP_KERNEL); + + /* Request template */ + status = qla4xxx_get_minidump_template(ha, md_tmp_dma); + if (status != QLA_SUCCESS) { + ql4_printk(KERN_INFO, ha, + "scsi%ld: Failed to get minidump template\n", + ha->host_no); + goto alloc_cleanup; + } + + md_hdr = (struct qla4_8xxx_minidump_template_hdr *)md_tmp; + + dma_capable = qla4_80xx_is_minidump_dma_capable(ha, md_hdr); + + capture_debug_level = md_hdr->capture_debug_level; + + /* Get capture mask based on module loadtime setting. */ + if ((ql4xmdcapmask >= 0x3 && ql4xmdcapmask <= 0x7F) || + (ql4xmdcapmask == 0xFF && dma_capable)) { + ha->fw_dump_capture_mask = ql4xmdcapmask; + } else { + if (ql4xmdcapmask == 0xFF) + ql4_printk(KERN_INFO, ha, "Falling back to default capture mask, as PEX DMA is not supported\n"); + ha->fw_dump_capture_mask = capture_debug_level; + } + + md_hdr->driver_capture_mask = ha->fw_dump_capture_mask; + + DEBUG2(ql4_printk(KERN_INFO, ha, "Minimum num of entries = %d\n", + md_hdr->num_of_entries)); + DEBUG2(ql4_printk(KERN_INFO, ha, "Dump template size = %d\n", + ha->fw_dump_tmplt_size)); + DEBUG2(ql4_printk(KERN_INFO, ha, "Selected Capture mask =0x%x\n", + ha->fw_dump_capture_mask)); + + /* Calculate fw_dump_size */ + for (hdr_entry_bit = 0x2, k = 1; (hdr_entry_bit & 0xFF); + hdr_entry_bit <<= 1, k++) { + if (hdr_entry_bit & ha->fw_dump_capture_mask) + ha->fw_dump_size += md_hdr->capture_size_array[k]; + } + + /* Total firmware dump size including command header */ + ha->fw_dump_size += ha->fw_dump_tmplt_size; + ha->fw_dump = vmalloc(ha->fw_dump_size); + if (!ha->fw_dump) + goto alloc_cleanup; + + DEBUG2(ql4_printk(KERN_INFO, ha, + "Minidump Tempalate Size = 0x%x KB\n", + ha->fw_dump_tmplt_size)); + DEBUG2(ql4_printk(KERN_INFO, ha, + "Total Minidump size = 0x%x KB\n", ha->fw_dump_size)); + + memcpy(ha->fw_dump, md_tmp, ha->fw_dump_tmplt_size); + ha->fw_dump_tmplt_hdr = ha->fw_dump; + +alloc_cleanup: + dma_free_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size, + md_tmp, md_tmp_dma); +} + static int qla4xxx_fw_ready(struct scsi_qla_host *ha) { uint32_t timeout_count; @@ -431,7 +555,7 @@ static int qla4xxx_init_firmware(struct scsi_qla_host *ha) /* For 82xx, stop firmware before initializing because if BIOS * has previously initialized firmware, then driver's initialize * firmware will fail. */ - if (is_qla8022(ha)) + if (is_qla80XX(ha)) qla4_8xxx_stop_firmware(ha); ql4_printk(KERN_INFO, ha, "Initializing firmware..\n"); @@ -440,9 +564,13 @@ static int qla4xxx_init_firmware(struct scsi_qla_host *ha) "control block\n", ha->host_no, __func__)); return status; } + if (!qla4xxx_fw_ready(ha)) return status; + if (is_qla80XX(ha) && !test_bit(AF_INIT_DONE, &ha->flags)) + qla4xxx_alloc_fw_dump(ha); + return qla4xxx_get_firmware_status(ha); } @@ -697,6 +825,9 @@ int qla4xxx_start_firmware(struct scsi_qla_host *ha) writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), &ha->reg->ctrl_status); readl(&ha->reg->ctrl_status); + writel(set_rmask(CSR_SCSI_COMPLETION_INTR), + &ha->reg->ctrl_status); + readl(&ha->reg->ctrl_status); spin_unlock_irqrestore(&ha->hardware_lock, flags); if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS) { DEBUG2(printk("scsi%ld: %s: Get firmware " @@ -759,6 +890,8 @@ int qla4xxx_start_firmware(struct scsi_qla_host *ha) if (status == QLA_SUCCESS) { if (test_and_clear_bit(AF_GET_CRASH_RECORD, &ha->flags)) qla4xxx_get_crash_record(ha); + + qla4xxx_init_rings(ha); } else { DEBUG(printk("scsi%ld: %s: Firmware has NOT started\n", ha->host_no, __func__)); @@ -773,22 +906,24 @@ int qla4xxx_start_firmware(struct scsi_qla_host *ha) * be freed so that when login happens from user space there are free DDB * indices available. **/ -static void qla4xxx_free_ddb_index(struct scsi_qla_host *ha) +void qla4xxx_free_ddb_index(struct scsi_qla_host *ha) { int max_ddbs; int ret; uint32_t idx = 0, next_idx = 0; uint32_t state = 0, conn_err = 0; - max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES : + max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : MAX_DEV_DB_ENTRIES; for (idx = 0; idx < max_ddbs; idx = next_idx) { ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL, &next_idx, &state, &conn_err, NULL, NULL); - if (ret == QLA_ERROR) + if (ret == QLA_ERROR) { + next_idx++; continue; + } if (state == DDB_DS_NO_CONNECTION_ACTIVE || state == DDB_DS_SESSION_FAILED) { DEBUG2(ql4_printk(KERN_INFO, ha, @@ -804,7 +939,6 @@ static void qla4xxx_free_ddb_index(struct scsi_qla_host *ha) } } - /** * qla4xxx_initialize_adapter - initiailizes hba * @ha: Pointer to host adapter structure. @@ -812,7 +946,7 @@ static void qla4xxx_free_ddb_index(struct scsi_qla_host *ha) * This routine parforms all of the steps necessary to initialize the adapter. * **/ -int qla4xxx_initialize_adapter(struct scsi_qla_host *ha) +int qla4xxx_initialize_adapter(struct scsi_qla_host *ha, int is_reset) { int status = QLA_ERROR; @@ -827,66 +961,45 @@ int qla4xxx_initialize_adapter(struct scsi_qla_host *ha) if (ha->isp_ops->start_firmware(ha) == QLA_ERROR) goto exit_init_hba; + /* + * For ISP83XX, mailbox and IOCB interrupts are enabled separately. + * Mailbox interrupts must be enabled prior to issuing any mailbox + * command in order to prevent the possibility of losing interrupts + * while switching from polling to interrupt mode. IOCB interrupts are + * enabled via isp_ops->enable_intrs. + */ + if (is_qla8032(ha) || is_qla8042(ha)) + qla4_83xx_enable_mbox_intrs(ha); + if (qla4xxx_about_firmware(ha) == QLA_ERROR) goto exit_init_hba; if (ha->isp_ops->get_sys_info(ha) == QLA_ERROR) goto exit_init_hba; - if (qla4xxx_init_local_data(ha) == QLA_ERROR) - goto exit_init_hba; + qla4xxx_init_local_data(ha); status = qla4xxx_init_firmware(ha); if (status == QLA_ERROR) goto exit_init_hba; - qla4xxx_free_ddb_index(ha); + if (is_reset == RESET_ADAPTER) + qla4xxx_build_ddb_list(ha, is_reset); set_bit(AF_ONLINE, &ha->flags); -exit_init_hba: - if (is_qla8022(ha) && (status == QLA_ERROR)) { - /* Since interrupts are registered in start_firmware for - * 82xx, release them here if initialize_adapter fails */ - qla4xxx_free_irqs(ha); - } +exit_init_hba: DEBUG2(printk("scsi%ld: initialize adapter: %s\n", ha->host_no, status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); return status; } -/** - * qla4xxx_process_ddb_changed - process ddb state change - * @ha - Pointer to host adapter structure. - * @fw_ddb_index - Firmware's device database index - * @state - Device state - * - * This routine processes a Decive Database Changed AEN Event. - **/ -int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index, - uint32_t state, uint32_t conn_err) +int qla4xxx_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index, + struct ddb_entry *ddb_entry, uint32_t state) { - struct ddb_entry * ddb_entry; uint32_t old_fw_ddb_device_state; int status = QLA_ERROR; - /* check for out of range index */ - if (fw_ddb_index >= MAX_DDB_ENTRIES) - goto exit_ddb_event; - - /* Get the corresponging ddb entry */ - ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index); - /* Device does not currently exist in our database. */ - if (ddb_entry == NULL) { - ql4_printk(KERN_ERR, ha, "%s: No ddb_entry at FW index [%d]\n", - __func__, fw_ddb_index); - - if (state == DDB_DS_NO_CONNECTION_ACTIVE) - clear_bit(fw_ddb_index, ha->ddb_idx_map); - - goto exit_ddb_event; - } - old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state; DEBUG2(ql4_printk(KERN_INFO, ha, "%s: DDB - old state = 0x%x, new state = 0x%x for " @@ -900,10 +1013,8 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index, switch (state) { case DDB_DS_SESSION_ACTIVE: case DDB_DS_DISCOVERY: - iscsi_conn_start(ddb_entry->conn); - iscsi_conn_login_event(ddb_entry->conn, - ISCSI_CONN_STATE_LOGGED_IN); qla4xxx_update_session_conn_param(ha, ddb_entry); + ddb_entry->unblock_sess(ddb_entry->sess); status = QLA_SUCCESS; break; case DDB_DS_SESSION_FAILED: @@ -915,6 +1026,7 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index, } break; case DDB_DS_SESSION_ACTIVE: + case DDB_DS_DISCOVERY: switch (state) { case DDB_DS_SESSION_FAILED: /* @@ -936,9 +1048,7 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index, switch (state) { case DDB_DS_SESSION_ACTIVE: case DDB_DS_DISCOVERY: - iscsi_conn_start(ddb_entry->conn); - iscsi_conn_login_event(ddb_entry->conn, - ISCSI_CONN_STATE_LOGGED_IN); + ddb_entry->unblock_sess(ddb_entry->sess); qla4xxx_update_session_conn_param(ha, ddb_entry); status = QLA_SUCCESS; break; @@ -954,7 +1064,198 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index, __func__)); break; } + return status; +} + +void qla4xxx_arm_relogin_timer(struct ddb_entry *ddb_entry) +{ + /* + * This triggers a relogin. After the relogin_timer + * expires, the relogin gets scheduled. We must wait a + * minimum amount of time since receiving an 0x8014 AEN + * with failed device_state or a logout response before + * we can issue another relogin. + * + * Firmware pads this timeout: (time2wait +1). + * Driver retry to login should be longer than F/W. + * Otherwise F/W will fail + * set_ddb() mbx cmd with 0x4005 since it still + * counting down its time2wait. + */ + atomic_set(&ddb_entry->relogin_timer, 0); + atomic_set(&ddb_entry->retry_relogin_timer, + ddb_entry->default_time2wait + 4); + +} + +int qla4xxx_flash_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index, + struct ddb_entry *ddb_entry, uint32_t state) +{ + uint32_t old_fw_ddb_device_state; + int status = QLA_ERROR; + + old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state; + DEBUG2(ql4_printk(KERN_INFO, ha, + "%s: DDB - old state = 0x%x, new state = 0x%x for " + "index [%d]\n", __func__, + ddb_entry->fw_ddb_device_state, state, fw_ddb_index)); + + ddb_entry->fw_ddb_device_state = state; + + switch (old_fw_ddb_device_state) { + case DDB_DS_LOGIN_IN_PROCESS: + case DDB_DS_NO_CONNECTION_ACTIVE: + switch (state) { + case DDB_DS_SESSION_ACTIVE: + ddb_entry->unblock_sess(ddb_entry->sess); + qla4xxx_update_session_conn_fwddb_param(ha, ddb_entry); + status = QLA_SUCCESS; + break; + case DDB_DS_SESSION_FAILED: + iscsi_block_session(ddb_entry->sess); + if (!test_bit(DF_RELOGIN, &ddb_entry->flags)) + qla4xxx_arm_relogin_timer(ddb_entry); + status = QLA_SUCCESS; + break; + } + break; + case DDB_DS_SESSION_ACTIVE: + switch (state) { + case DDB_DS_SESSION_FAILED: + iscsi_block_session(ddb_entry->sess); + if (!test_bit(DF_RELOGIN, &ddb_entry->flags)) + qla4xxx_arm_relogin_timer(ddb_entry); + status = QLA_SUCCESS; + break; + } + break; + case DDB_DS_SESSION_FAILED: + switch (state) { + case DDB_DS_SESSION_ACTIVE: + ddb_entry->unblock_sess(ddb_entry->sess); + qla4xxx_update_session_conn_fwddb_param(ha, ddb_entry); + status = QLA_SUCCESS; + break; + case DDB_DS_SESSION_FAILED: + if (!test_bit(DF_RELOGIN, &ddb_entry->flags)) + qla4xxx_arm_relogin_timer(ddb_entry); + status = QLA_SUCCESS; + break; + } + break; + default: + DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unknown Event\n", + __func__)); + break; + } + return status; +} + +/** + * qla4xxx_process_ddb_changed - process ddb state change + * @ha - Pointer to host adapter structure. + * @fw_ddb_index - Firmware's device database index + * @state - Device state + * + * This routine processes a Decive Database Changed AEN Event. + **/ +int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, + uint32_t fw_ddb_index, + uint32_t state, uint32_t conn_err) +{ + struct ddb_entry *ddb_entry; + int status = QLA_ERROR; + + /* check for out of range index */ + if (fw_ddb_index >= MAX_DDB_ENTRIES) + goto exit_ddb_event; + + /* Get the corresponging ddb entry */ + ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index); + /* Device does not currently exist in our database. */ + if (ddb_entry == NULL) { + ql4_printk(KERN_ERR, ha, "%s: No ddb_entry at FW index [%d]\n", + __func__, fw_ddb_index); + + if (state == DDB_DS_NO_CONNECTION_ACTIVE) + clear_bit(fw_ddb_index, ha->ddb_idx_map); + + goto exit_ddb_event; + } + + ddb_entry->ddb_change(ha, fw_ddb_index, ddb_entry, state); exit_ddb_event: return status; } + +/** + * qla4xxx_login_flash_ddb - Login to target (DDB) + * @cls_session: Pointer to the session to login + * + * This routine logins to the target. + * Issues setddb and conn open mbx + **/ +void qla4xxx_login_flash_ddb(struct iscsi_cls_session *cls_session) +{ + struct iscsi_session *sess; + struct ddb_entry *ddb_entry; + struct scsi_qla_host *ha; + struct dev_db_entry *fw_ddb_entry = NULL; + dma_addr_t fw_ddb_dma; + uint32_t mbx_sts = 0; + int ret; + + sess = cls_session->dd_data; + ddb_entry = sess->dd_data; + ha = ddb_entry->ha; + + if (!test_bit(AF_LINK_UP, &ha->flags)) + return; + + if (ddb_entry->ddb_type != FLASH_DDB) { + DEBUG2(ql4_printk(KERN_INFO, ha, + "Skipping login to non FLASH DB")); + goto exit_login; + } + + fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, + &fw_ddb_dma); + if (fw_ddb_entry == NULL) { + DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); + goto exit_login; + } + + if (ddb_entry->fw_ddb_index == INVALID_ENTRY) { + ret = qla4xxx_get_ddb_index(ha, &ddb_entry->fw_ddb_index); + if (ret == QLA_ERROR) + goto exit_login; + + ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry; + ha->tot_ddbs++; + } + + memcpy(fw_ddb_entry, &ddb_entry->fw_ddb_entry, + sizeof(struct dev_db_entry)); + ddb_entry->sess->target_id = ddb_entry->fw_ddb_index; + + ret = qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index, + fw_ddb_dma, &mbx_sts); + if (ret == QLA_ERROR) { + DEBUG2(ql4_printk(KERN_ERR, ha, "Set DDB failed\n")); + goto exit_login; + } + + ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS; + ret = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index); + if (ret == QLA_ERROR) { + ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__, + sess->targetname); + goto exit_login; + } + +exit_login: + if (fw_ddb_entry) + dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); +} + |