/* * QLogic iSCSI HBA Driver * Copyright (c) 2003-2010 QLogic Corporation * * See LICENSE.qla4xxx for copyright and licensing details. */ #include <scsi/iscsi_if.h> #include "ql4_def.h" #include "ql4_glbl.h" #include "ql4_dbg.h" #include "ql4_inline.h" static void ql4xxx_set_mac_number(struct scsi_qla_host *ha) { uint32_t value; uint8_t func_number; unsigned long flags; /* Get the function number */ spin_lock_irqsave(&ha->hardware_lock, flags); value = readw(&ha->reg->ctrl_status); spin_unlock_irqrestore(&ha->hardware_lock, flags); func_number = (uint8_t) ((value >> 4) & 0x30); switch (value & ISP_CONTROL_FN_MASK) { case ISP_CONTROL_FN0_SCSI: ha->mac_index = 1; break; case ISP_CONTROL_FN1_SCSI: ha->mac_index = 3; break; default: DEBUG2(printk("scsi%ld: %s: Invalid function number, " "ispControlStatus = 0x%x\n", ha->host_no, __func__, value)); break; } DEBUG2(printk("scsi%ld: %s: mac_index %d.\n", ha->host_no, __func__, ha->mac_index)); } /** * qla4xxx_free_ddb - deallocate ddb * @ha: pointer to host adapter structure. * @ddb_entry: pointer to device database entry * * This routine marks a DDB entry INVALID **/ void qla4xxx_free_ddb(struct scsi_qla_host *ha, struct ddb_entry *ddb_entry) { /* Remove device pointer from index mapping arrays */ ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = (struct ddb_entry *) INVALID_ENTRY; ha->tot_ddbs--; } /** * qla4xxx_init_response_q_entries() - Initializes response queue entries. * @ha: HA context * * Beginning of request ring has initialization control block already built * by nvram config routine. **/ static void qla4xxx_init_response_q_entries(struct scsi_qla_host *ha) { uint16_t cnt; struct response *pkt; pkt = (struct response *)ha->response_ptr; for (cnt = 0; cnt < RESPONSE_QUEUE_DEPTH; cnt++) { pkt->signature = RESPONSE_PROCESSED; pkt++; } } /** * qla4xxx_init_rings - initialize hw queues * @ha: pointer to host adapter structure. * * This routine initializes the internal queues for the specified adapter. * The QLA4010 requires us to restart the queues at index 0. * The QLA4000 doesn't care, so just default to QLA4010's requirement. **/ int qla4xxx_init_rings(struct scsi_qla_host *ha) { unsigned long flags = 0; /* Initialize request queue. */ spin_lock_irqsave(&ha->hardware_lock, flags); ha->request_out = 0; ha->request_in = 0; ha->request_ptr = &ha->request_ring[ha->request_in]; ha->req_q_count = REQUEST_QUEUE_DEPTH; /* Initialize response queue. */ ha->response_in = 0; ha->response_out = 0; ha->response_ptr = &ha->response_ring[ha->response_out]; if (is_qla8022(ha)) { writel(0, (unsigned long __iomem *)&ha->qla4_8xxx_reg->req_q_out); writel(0, (unsigned long __iomem *)&ha->qla4_8xxx_reg->rsp_q_in); writel(0, (unsigned long __iomem *)&ha->qla4_8xxx_reg->rsp_q_out); } else { /* * Initialize DMA Shadow registers. The firmware is really * supposed to take care of this, but on some uniprocessor * systems, the shadow registers aren't cleared-- causing * the interrupt_handler to think there are responses to be * processed when there aren't. */ ha->shadow_regs->req_q_out = __constant_cpu_to_le32(0); ha->shadow_regs->rsp_q_in = __constant_cpu_to_le32(0); wmb(); writel(0, &ha->reg->req_q_in); writel(0, &ha->reg->rsp_q_out); readl(&ha->reg->rsp_q_out); } qla4xxx_init_response_q_entries(ha); spin_unlock_irqrestore(&ha->hardware_lock, flags); return QLA_SUCCESS; } /** * qla4xxx_get_sys_info - validate adapter MAC address(es) * @ha: pointer to host adapter structure. * **/ int qla4xxx_get_sys_info(struct scsi_qla_host *ha) { struct flash_sys_info *sys_info; dma_addr_t sys_info_dma; int status = QLA_ERROR; sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info), &sys_info_dma, GFP_KERNEL); if (sys_info == NULL) { DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n", ha->host_no, __func__)); goto exit_get_sys_info_no_free; } memset(sys_info, 0, sizeof(*sys_info)); /* Get flash sys info */ if (qla4xxx_get_flash(ha, sys_info_dma, FLASH_OFFSET_SYS_INFO, sizeof(*sys_info)) != QLA_SUCCESS) { DEBUG2(printk("scsi%ld: %s: get_flash FLASH_OFFSET_SYS_INFO " "failed\n", ha->host_no, __func__)); goto exit_get_sys_info; } /* Save M.A.C. address & serial_number */ memcpy(ha->my_mac, &sys_info->physAddr[0].address[0], min(sizeof(ha->my_mac), sizeof(sys_info->physAddr[0].address))); memcpy(ha->serial_number, &sys_info->acSerialNumber, min(sizeof(ha->serial_number), sizeof(sys_info->acSerialNumber))); status = QLA_SUCCESS; exit_get_sys_info: dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info, sys_info_dma); exit_get_sys_info_no_free: return status; } /** * qla4xxx_init_local_data - initialize adapter specific local data * @ha: pointer to host adapter structure. * **/ static int 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 qla4xxx_wait_for_ip_config(struct scsi_qla_host *ha) { uint8_t ipv4_wait = 0; uint8_t ipv6_wait = 0; int8_t ip_address[IPv6_ADDR_LEN] = {0} ; /* If both IPv4 & IPv6 are enabled, possibly only one * IP address may be acquired, so check to see if we * need to wait for another */ if (is_ipv4_enabled(ha) && is_ipv6_enabled(ha)) { if (((ha->addl_fw_state & FW_ADDSTATE_DHCPv4_ENABLED) != 0) && ((ha->addl_fw_state & FW_ADDSTATE_DHCPv4_LEASE_ACQUIRED) == 0)) { ipv4_wait = 1; } if (((ha->ip_config.ipv6_addl_options & IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) != 0) && ((ha->ip_config.ipv6_link_local_state == IP_ADDRSTATE_ACQUIRING) || (ha->ip_config.ipv6_addr0_state == IP_ADDRSTATE_ACQUIRING) || (ha->ip_config.ipv6_addr1_state == IP_ADDRSTATE_ACQUIRING))) { ipv6_wait = 1; if ((ha->ip_config.ipv6_link_local_state == IP_ADDRSTATE_PREFERRED) || (ha->ip_config.ipv6_addr0_state == IP_ADDRSTATE_PREFERRED) || (ha->ip_config.ipv6_addr1_state == IP_ADDRSTATE_PREFERRED)) { DEBUG2(printk(KERN_INFO "scsi%ld: %s: " "Preferred IP configured." " Don't wait!\n", ha->host_no, __func__)); ipv6_wait = 0; } if (memcmp(&ha->ip_config.ipv6_default_router_addr, ip_address, IPv6_ADDR_LEN) == 0) { DEBUG2(printk(KERN_INFO "scsi%ld: %s: " "No Router configured. " "Don't wait!\n", ha->host_no, __func__)); ipv6_wait = 0; } if ((ha->ip_config.ipv6_default_router_state == IPV6_RTRSTATE_MANUAL) && (ha->ip_config.ipv6_link_local_state == IP_ADDRSTATE_TENTATIVE) && (memcmp(&ha->ip_config.ipv6_link_local_addr, &ha->ip_config.ipv6_default_router_addr, 4) == 0)) { DEBUG2(printk("scsi%ld: %s: LinkLocal Router & " "IP configured. Don't wait!\n", ha->host_no, __func__)); ipv6_wait = 0; } } if (ipv4_wait || ipv6_wait) { DEBUG2(printk("scsi%ld: %s: Wait for additional " "IP(s) \"", ha->host_no, __func__)); if (ipv4_wait) DEBUG2(printk("IPv4 ")); if (ha->ip_config.ipv6_link_local_state == IP_ADDRSTATE_ACQUIRING) DEBUG2(printk("IPv6LinkLocal ")); if (ha->ip_config.ipv6_addr0_state == IP_ADDRSTATE_ACQUIRING) DEBUG2(printk("IPv6Addr0 ")); if (ha->ip_config.ipv6_addr1_state == IP_ADDRSTATE_ACQUIRING) DEBUG2(printk("IPv6Addr1 ")); DEBUG2(printk("\"\n")); } } return ipv4_wait|ipv6_wait; } static int qla4xxx_fw_ready(struct scsi_qla_host *ha) { uint32_t timeout_count; int ready = 0; DEBUG2(ql4_printk(KERN_INFO, ha, "Waiting for Firmware Ready..\n")); for (timeout_count = ADAPTER_INIT_TOV; timeout_count > 0; timeout_count--) { if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) qla4xxx_get_dhcp_ip_address(ha); /* Get firmware state. */ if (qla4xxx_get_firmware_state(ha) != QLA_SUCCESS) { DEBUG2(printk("scsi%ld: %s: unable to get firmware " "state\n", ha->host_no, __func__)); break; } if (ha->firmware_state & FW_STATE_ERROR) { DEBUG2(printk("scsi%ld: %s: an unrecoverable error has" " occurred\n", ha->host_no, __func__)); break; } if (ha->firmware_state & FW_STATE_CONFIG_WAIT) { /* * The firmware has not yet been issued an Initialize * Firmware command, so issue it now. */ if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR) break; /* Go back and test for ready state - no wait. */ continue; } if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) { DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:" "AUTOCONNECT in progress\n", ha->host_no, __func__)); } if (ha->firmware_state & FW_STATE_CONFIGURING_IP) { DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:" " CONFIGURING IP\n", ha->host_no, __func__)); /* * Check for link state after 15 secs and if link is * still DOWN then, cable is unplugged. Ignore "DHCP * in Progress/CONFIGURING IP" bit to check if firmware * is in ready state or not after 15 secs. * This is applicable for both 2.x & 3.x firmware */ if (timeout_count <= (ADAPTER_INIT_TOV - 15)) { if (ha->addl_fw_state & FW_ADDSTATE_LINK_UP) { DEBUG2(printk(KERN_INFO "scsi%ld: %s:" " LINK UP (Cable plugged)\n", ha->host_no, __func__)); } else if (ha->firmware_state & (FW_STATE_CONFIGURING_IP | FW_STATE_READY)) { DEBUG2(printk(KERN_INFO "scsi%ld: %s: " "LINK DOWN (Cable unplugged)\n", ha->host_no, __func__)); ha->firmware_state = FW_STATE_READY; } } } if (ha->firmware_state == FW_STATE_READY) { /* If DHCP IP Addr is available, retrieve it now. */ if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) qla4xxx_get_dhcp_ip_address(ha); if (!qla4xxx_wait_for_ip_config(ha) || timeout_count == 1) { DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware Ready..\n")); /* The firmware is ready to process SCSI commands. */ DEBUG2(ql4_printk(KERN_INFO, ha, "scsi%ld: %s: MEDIA TYPE" " - %s\n", ha->host_no, __func__, (ha->addl_fw_state & FW_ADDSTATE_OPTICAL_MEDIA) != 0 ? "OPTICAL" : "COPPER")); DEBUG2(ql4_printk(KERN_INFO, ha, "scsi%ld: %s: DHCPv4 STATE" " Enabled %s\n", ha->host_no, __func__, (ha->addl_fw_state & FW_ADDSTATE_DHCPv4_ENABLED) != 0 ? "YES" : "NO")); DEBUG2(ql4_printk(KERN_INFO, ha, "scsi%ld: %s: LINK %s\n", ha->host_no, __func__, (ha->addl_fw_state & FW_ADDSTATE_LINK_UP) != 0 ? "UP" : "DOWN")); DEBUG2(ql4_printk(KERN_INFO, ha, "scsi%ld: %s: iSNS Service " "Started %s\n", ha->host_no, __func__, (ha->addl_fw_state & FW_ADDSTATE_ISNS_SVC_ENABLED) != 0 ? "YES" : "NO")); ready = 1; break; } } DEBUG2(printk("scsi%ld: %s: waiting on fw, state=%x:%x - " "seconds expired= %d\n", ha->host_no, __func__, ha->firmware_state, ha->addl_fw_state, timeout_count)); if (is_qla4032(ha) && !(ha->addl_fw_state & FW_ADDSTATE_LINK_UP) && (timeout_count < ADAPTER_INIT_TOV - 5)) { break; } msleep(1000); } /* end of for */ if (timeout_count <= 0) DEBUG2(printk("scsi%ld: %s: FW Initialization timed out!\n", ha->host_no, __func__)); if (ha->firmware_state & FW_STATE_CONFIGURING_IP) { DEBUG2(printk("scsi%ld: %s: FW initialized, but is reporting " "it's waiting to configure an IP address\n", ha->host_no, __func__)); ready = 1; } else if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) { DEBUG2(printk("scsi%ld: %s: FW initialized, but " "auto-discovery still in process\n", ha->host_no, __func__)); ready = 1; } return ready; } /** * qla4xxx_init_firmware - initializes the firmware. * @ha: pointer to host adapter structure. * **/ static int qla4xxx_init_firmware(struct scsi_qla_host *ha) { int status = QLA_ERROR; if (is_aer_supported(ha) && test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) return status; /* For 82xx, stop firmware before initializing because if BIOS * has previously initialized firmware, then driver's initialize * firmware will fail. */ if (is_qla8022(ha)) qla4_8xxx_stop_firmware(ha); ql4_printk(KERN_INFO, ha, "Initializing firmware..\n"); if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR) { DEBUG2(printk("scsi%ld: %s: Failed to initialize firmware " "control block\n", ha->host_no, __func__)); return status; } if (!qla4xxx_fw_ready(ha)) return status; return qla4xxx_get_firmware_status(ha); } static void qla4xxx_set_model_info(struct scsi_qla_host *ha) { uint16_t board_id_string[8]; int i; int size = sizeof(ha->nvram->isp4022.boardIdStr); int offset = offsetof(struct eeprom_data, isp4022.boardIdStr) / 2; for (i = 0; i < (size / 2) ; i++) { board_id_string[i] = rd_nvram_word(ha, offset); offset += 1; } memcpy(ha->model_name, board_id_string, size); } static int qla4xxx_config_nvram(struct scsi_qla_host *ha) { unsigned long flags; union external_hw_config_reg extHwConfig; DEBUG2(printk("scsi%ld: %s: Get EEProm parameters \n", ha->host_no, __func__)); if (ql4xxx_lock_flash(ha) != QLA_SUCCESS) return QLA_ERROR; if (ql4xxx_lock_nvram(ha) != QLA_SUCCESS) { ql4xxx_unlock_flash(ha); return QLA_ERROR; } /* Get EEPRom Parameters from NVRAM and validate */ ql4_printk(KERN_INFO, ha, "Configuring NVRAM ...\n"); if (qla4xxx_is_nvram_configuration_valid(ha) == QLA_SUCCESS) { spin_lock_irqsave(&ha->hardware_lock, flags); extHwConfig.Asuint32_t = rd_nvram_word(ha, eeprom_ext_hw_conf_offset(ha)); spin_unlock_irqrestore(&ha->hardware_lock, flags); } else { ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: EEProm checksum invalid. " "Please update your EEPROM\n", ha->host_no, __func__); /* Attempt to set defaults */ if (is_qla4010(ha)) extHwConfig.Asuint32_t = 0x1912; else if (is_qla4022(ha) | is_qla4032(ha)) extHwConfig.Asuint32_t = 0x0023; else return QLA_ERROR; } if (is_qla4022(ha) || is_qla4032(ha)) qla4xxx_set_model_info(ha); else strcpy(ha->model_name, "QLA4010"); DEBUG(printk("scsi%ld: %s: Setting extHwConfig to 0xFFFF%04x\n", ha->host_no, __func__, extHwConfig.Asuint32_t)); spin_lock_irqsave(&ha->hardware_lock, flags); writel((0xFFFF << 16) | extHwConfig.Asuint32_t, isp_ext_hw_conf(ha)); readl(isp_ext_hw_conf(ha)); spin_unlock_irqrestore(&ha->hardware_lock, flags); ql4xxx_unlock_nvram(ha); ql4xxx_unlock_flash(ha); return QLA_SUCCESS; } /** * qla4_8xxx_pci_config() - Setup ISP82xx PCI configuration registers. * @ha: HA context */ void qla4_8xxx_pci_config(struct scsi_qla_host *ha) { pci_set_master(ha->pdev); } void qla4xxx_pci_config(struct scsi_qla_host *ha) { uint16_t w; int status; ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n"); pci_set_master(ha->pdev); status = pci_set_mwi(ha->pdev); /* * We want to respect framework's setting of PCI configuration space * command register and also want to make sure that all bits of * interest to us are properly set in command register. */ pci_read_config_word(ha->pdev, PCI_COMMAND, &w); w |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR; w &= ~PCI_COMMAND_INTX_DISABLE; pci_write_config_word(ha->pdev, PCI_COMMAND, w); } static int qla4xxx_start_firmware_from_flash(struct scsi_qla_host *ha) { int status = QLA_ERROR; unsigned long max_wait_time; unsigned long flags; uint32_t mbox_status; ql4_printk(KERN_INFO, ha, "Starting firmware ...\n"); /* * Start firmware from flash ROM * * WORKAROUND: Stuff a non-constant value that the firmware can * use as a seed for a random number generator in MB7 prior to * setting BOOT_ENABLE. Fixes problem where the TCP * connections use the same TCP ports after each reboot, * causing some connections to not get re-established. */ DEBUG(printk("scsi%d: %s: Start firmware from flash ROM\n", ha->host_no, __func__)); spin_lock_irqsave(&ha->hardware_lock, flags); writel(jiffies, &ha->reg->mailbox[7]); if (is_qla4022(ha) | is_qla4032(ha)) writel(set_rmask(NVR_WRITE_ENABLE), &ha->reg->u1.isp4022.nvram); writel(2, &ha->reg->mailbox[6]); readl(&ha->reg->mailbox[6]); writel(set_rmask(CSR_BOOT_ENABLE), &ha->reg->ctrl_status); readl(&ha->reg->ctrl_status); spin_unlock_irqrestore(&ha->hardware_lock, flags); /* Wait for firmware to come UP. */ DEBUG2(printk(KERN_INFO "scsi%ld: %s: Wait up to %d seconds for " "boot firmware to complete...\n", ha->host_no, __func__, FIRMWARE_UP_TOV)); max_wait_time = jiffies + (FIRMWARE_UP_TOV * HZ); do { uint32_t ctrl_status; spin_lock_irqsave(&ha->hardware_lock, flags); ctrl_status = readw(&ha->reg->ctrl_status); mbox_status = readw(&ha->reg->mailbox[0]); spin_unlock_irqrestore(&ha->hardware_lock, flags); if (ctrl_status & set_rmask(CSR_SCSI_PROCESSOR_INTR)) break; if (mbox_status == MBOX_STS_COMMAND_COMPLETE) break; DEBUG2(printk(KERN_INFO "scsi%ld: %s: Waiting for boot " "firmware to complete... ctrl_sts=0x%x, remaining=%ld\n", ha->host_no, __func__, ctrl_status, max_wait_time)); msleep_interruptible(250); } while (!time_after_eq(jiffies, max_wait_time)); if (mbox_status == MBOX_STS_COMMAND_COMPLETE) { DEBUG(printk(KERN_INFO "scsi%ld: %s: Firmware has started\n", ha->host_no, __func__)); spin_lock_irqsave(&ha->hardware_lock, flags); writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), &ha->reg->ctrl_status); readl(&ha->reg->ctrl_status); spin_unlock_irqrestore(&ha->hardware_lock, flags); status = QLA_SUCCESS; } else { printk(KERN_INFO "scsi%ld: %s: Boot firmware failed " "- mbox status 0x%x\n", ha->host_no, __func__, mbox_status); status = QLA_ERROR; } return status; } int ql4xxx_lock_drvr_wait(struct scsi_qla_host *a) { #define QL4_LOCK_DRVR_WAIT 60 #define QL4_LOCK_DRVR_SLEEP 1 int drvr_wait = QL4_LOCK_DRVR_WAIT; while (drvr_wait) { if (ql4xxx_lock_drvr(a) == 0) { ssleep(QL4_LOCK_DRVR_SLEEP); if (drvr_wait) { DEBUG2(printk("scsi%ld: %s: Waiting for " "Global Init Semaphore(%d)...\n", a->host_no, __func__, drvr_wait)); } drvr_wait -= QL4_LOCK_DRVR_SLEEP; } else { DEBUG2(printk("scsi%ld: %s: Global Init Semaphore " "acquired\n", a->host_no, __func__)); return QLA_SUCCESS; } } return QLA_ERROR; } /** * qla4xxx_start_firmware - starts qla4xxx firmware * @ha: Pointer to host adapter structure. * * This routine performs the necessary steps to start the firmware for * the QLA4010 adapter. **/ int qla4xxx_start_firmware(struct scsi_qla_host *ha) { unsigned long flags = 0; uint32_t mbox_status; int status = QLA_ERROR; int soft_reset = 1; int config_chip = 0; if (is_qla4022(ha) | is_qla4032(ha)) ql4xxx_set_mac_number(ha); if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) return QLA_ERROR; spin_lock_irqsave(&ha->hardware_lock, flags); DEBUG2(printk("scsi%ld: %s: port_ctrl = 0x%08X\n", ha->host_no, __func__, readw(isp_port_ctrl(ha)))); DEBUG(printk("scsi%ld: %s: port_status = 0x%08X\n", ha->host_no, __func__, readw(isp_port_status(ha)))); /* Is Hardware already initialized? */ if ((readw(isp_port_ctrl(ha)) & 0x8000) != 0) { DEBUG(printk("scsi%ld: %s: Hardware has already been " "initialized\n", ha->host_no, __func__)); /* Receive firmware boot acknowledgement */ mbox_status = readw(&ha->reg->mailbox[0]); DEBUG2(printk("scsi%ld: %s: H/W Config complete - mbox[0]= " "0x%x\n", ha->host_no, __func__, mbox_status)); /* Is firmware already booted? */ if (mbox_status == 0) { /* F/W not running, must be config by net driver */ config_chip = 1; soft_reset = 0; } else { 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 " "state -- state = 0x%x\n", ha->host_no, __func__, ha->firmware_state)); /* F/W is running */ if (ha->firmware_state & FW_STATE_CONFIG_WAIT) { DEBUG2(printk("scsi%ld: %s: Firmware " "in known state -- " "config and " "boot, state = 0x%x\n", ha->host_no, __func__, ha->firmware_state)); config_chip = 1; soft_reset = 0; } } else { DEBUG2(printk("scsi%ld: %s: Firmware in " "unknown state -- resetting," " state = " "0x%x\n", ha->host_no, __func__, ha->firmware_state)); } spin_lock_irqsave(&ha->hardware_lock, flags); } } else { DEBUG(printk("scsi%ld: %s: H/W initialization hasn't been " "started - resetting\n", ha->host_no, __func__)); } spin_unlock_irqrestore(&ha->hardware_lock, flags); DEBUG(printk("scsi%ld: %s: Flags soft_rest=%d, config= %d\n ", ha->host_no, __func__, soft_reset, config_chip)); if (soft_reset) { DEBUG(printk("scsi%ld: %s: Issue Soft Reset\n", ha->host_no, __func__)); status = qla4xxx_soft_reset(ha); /* NOTE: acquires drvr * lock again, but ok */ if (status == QLA_ERROR) { DEBUG(printk("scsi%d: %s: Soft Reset failed!\n", ha->host_no, __func__)); ql4xxx_unlock_drvr(ha); return QLA_ERROR; } config_chip = 1; /* Reset clears the semaphore, so acquire again */ if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) return QLA_ERROR; } if (config_chip) { if ((status = qla4xxx_config_nvram(ha)) == QLA_SUCCESS) status = qla4xxx_start_firmware_from_flash(ha); } ql4xxx_unlock_drvr(ha); if (status == QLA_SUCCESS) { if (test_and_clear_bit(AF_GET_CRASH_RECORD, &ha->flags)) qla4xxx_get_crash_record(ha); } else { DEBUG(printk("scsi%ld: %s: Firmware has NOT started\n", ha->host_no, __func__)); } return status; } /** * qla4xxx_free_ddb_index - Free DDBs reserved by firmware * @ha: pointer to adapter structure * * Since firmware is not running in autoconnect mode the DDB indices should * be freed so that when login happens from user space there are free DDB * indices available. **/ 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_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) { next_idx++; continue; } if (state == DDB_DS_NO_CONNECTION_ACTIVE || state == DDB_DS_SESSION_FAILED) { DEBUG2(ql4_printk(KERN_INFO, ha, "Freeing DDB index = 0x%x\n", idx)); ret = qla4xxx_clear_ddb_entry(ha, idx); if (ret == QLA_ERROR) ql4_printk(KERN_ERR, ha, "Unable to clear DDB index = " "0x%x\n", idx); } if (next_idx == 0) break; } } /** * qla4xxx_initialize_adapter - initiailizes hba * @ha: Pointer to host adapter structure. * * This routine parforms all of the steps necessary to initialize the adapter. * **/ int qla4xxx_initialize_adapter(struct scsi_qla_host *ha, int is_reset) { int status = QLA_ERROR; ha->eeprom_cmd_data = 0; ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n"); ha->isp_ops->pci_config(ha); ha->isp_ops->disable_intrs(ha); /* Initialize the Host adapter request/response queues and firmware */ if (ha->isp_ops->start_firmware(ha) == QLA_ERROR) goto exit_init_hba; 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; status = qla4xxx_init_firmware(ha); if (status == QLA_ERROR) goto exit_init_hba; 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); } DEBUG2(printk("scsi%ld: initialize adapter: %s\n", ha->host_no, status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); return status; } int qla4xxx_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: switch (state) { case DDB_DS_SESSION_ACTIVE: case DDB_DS_DISCOVERY: ddb_entry->unblock_sess(ddb_entry->sess); qla4xxx_update_session_conn_param(ha, ddb_entry); status = QLA_SUCCESS; break; case DDB_DS_SESSION_FAILED: case DDB_DS_NO_CONNECTION_ACTIVE: iscsi_conn_login_event(ddb_entry->conn, ISCSI_CONN_STATE_FREE); status = QLA_SUCCESS; break; } break; case DDB_DS_SESSION_ACTIVE: switch (state) { case DDB_DS_SESSION_FAILED: /* * iscsi_session failure will cause userspace to * stop the connection which in turn would block the * iscsi_session and start relogin */ iscsi_session_failure(ddb_entry->sess->dd_data, ISCSI_ERR_CONN_FAILED); status = QLA_SUCCESS; break; case DDB_DS_NO_CONNECTION_ACTIVE: clear_bit(fw_ddb_index, ha->ddb_idx_map); status = QLA_SUCCESS; break; } break; case DDB_DS_SESSION_FAILED: switch (state) { case DDB_DS_SESSION_ACTIVE: case DDB_DS_DISCOVERY: ddb_entry->unblock_sess(ddb_entry->sess); qla4xxx_update_session_conn_param(ha, ddb_entry); status = QLA_SUCCESS; break; case DDB_DS_SESSION_FAILED: iscsi_session_failure(ddb_entry->sess->dd_data, ISCSI_ERR_CONN_FAILED); status = QLA_SUCCESS; break; } break; default: DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unknown Event\n", __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); }