diff options
Diffstat (limited to 'drivers/scsi/qla4xxx/ql4_mbx.c')
| -rw-r--r-- | drivers/scsi/qla4xxx/ql4_mbx.c | 930 |
1 files changed, 930 insertions, 0 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c new file mode 100644 index 00000000000..ed977f70b2d --- /dev/null +++ b/drivers/scsi/qla4xxx/ql4_mbx.c @@ -0,0 +1,930 @@ +/* + * QLogic iSCSI HBA Driver + * Copyright (c) 2003-2006 QLogic Corporation + * + * See LICENSE.qla4xxx for copyright and licensing details. + */ + +#include "ql4_def.h" + + +/** + * qla4xxx_mailbox_command - issues mailbox commands + * @ha: Pointer to host adapter structure. + * @inCount: number of mailbox registers to load. + * @outCount: number of mailbox registers to return. + * @mbx_cmd: data pointer for mailbox in registers. + * @mbx_sts: data pointer for mailbox out registers. + * + * This routine sssue mailbox commands and waits for completion. + * If outCount is 0, this routine completes successfully WITHOUT waiting + * for the mailbox command to complete. + **/ +int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount, + uint8_t outCount, uint32_t *mbx_cmd, + uint32_t *mbx_sts) +{ + int status = QLA_ERROR; + uint8_t i; + u_long wait_count; + uint32_t intr_status; + unsigned long flags = 0; + DECLARE_WAITQUEUE(wait, current); + + mutex_lock(&ha->mbox_sem); + + /* Mailbox code active */ + set_bit(AF_MBOX_COMMAND, &ha->flags); + + /* Make sure that pointers are valid */ + if (!mbx_cmd || !mbx_sts) { + DEBUG2(printk("scsi%ld: %s: Invalid mbx_cmd or mbx_sts " + "pointer\n", ha->host_no, __func__)); + goto mbox_exit; + } + + /* To prevent overwriting mailbox registers for a command that has + * not yet been serviced, check to see if a previously issued + * mailbox command is interrupting. + * ----------------------------------------------------------------- + */ + spin_lock_irqsave(&ha->hardware_lock, flags); + intr_status = readl(&ha->reg->ctrl_status); + if (intr_status & CSR_SCSI_PROCESSOR_INTR) { + /* Service existing interrupt */ + qla4xxx_interrupt_service_routine(ha, intr_status); + clear_bit(AF_MBOX_COMMAND_DONE, &ha->flags); + } + + /* Send the mailbox command to the firmware */ + ha->mbox_status_count = outCount; + for (i = 0; i < outCount; i++) + ha->mbox_status[i] = 0; + + /* Load all mailbox registers, except mailbox 0. */ + for (i = 1; i < inCount; i++) + writel(mbx_cmd[i], &ha->reg->mailbox[i]); + + /* Wakeup firmware */ + writel(mbx_cmd[0], &ha->reg->mailbox[0]); + readl(&ha->reg->mailbox[0]); + writel(set_rmask(CSR_INTR_RISC), &ha->reg->ctrl_status); + readl(&ha->reg->ctrl_status); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + /* Wait for completion */ + set_current_state(TASK_UNINTERRUPTIBLE); + add_wait_queue(&ha->mailbox_wait_queue, &wait); + + /* + * If we don't want status, don't wait for the mailbox command to + * complete. For example, MBOX_CMD_RESET_FW doesn't return status, + * you must poll the inbound Interrupt Mask for completion. + */ + if (outCount == 0) { + status = QLA_SUCCESS; + set_current_state(TASK_RUNNING); + remove_wait_queue(&ha->mailbox_wait_queue, &wait); + goto mbox_exit; + } + /* Wait for command to complete */ + wait_count = jiffies + MBOX_TOV * HZ; + while (test_bit(AF_MBOX_COMMAND_DONE, &ha->flags) == 0) { + if (time_after_eq(jiffies, wait_count)) + break; + + spin_lock_irqsave(&ha->hardware_lock, flags); + intr_status = readl(&ha->reg->ctrl_status); + if (intr_status & INTR_PENDING) { + /* + * Service the interrupt. + * The ISR will save the mailbox status registers + * to a temporary storage location in the adapter + * structure. + */ + ha->mbox_status_count = outCount; + qla4xxx_interrupt_service_routine(ha, intr_status); + } + spin_unlock_irqrestore(&ha->hardware_lock, flags); + msleep(10); + } + set_current_state(TASK_RUNNING); + remove_wait_queue(&ha->mailbox_wait_queue, &wait); + + /* Check for mailbox timeout. */ + if (!test_bit(AF_MBOX_COMMAND_DONE, &ha->flags)) { + DEBUG2(printk("scsi%ld: Mailbox Cmd 0x%08X timed out ...," + " Scheduling Adapter Reset\n", ha->host_no, + mbx_cmd[0])); + ha->mailbox_timeout_count++; + mbx_sts[0] = (-1); + set_bit(DPC_RESET_HA, &ha->dpc_flags); + goto mbox_exit; + } + + /* + * Copy the mailbox out registers to the caller's mailbox in/out + * structure. + */ + spin_lock_irqsave(&ha->hardware_lock, flags); + for (i = 0; i < outCount; i++) + mbx_sts[i] = ha->mbox_status[i]; + + /* Set return status and error flags (if applicable). */ + switch (ha->mbox_status[0]) { + case MBOX_STS_COMMAND_COMPLETE: + status = QLA_SUCCESS; + break; + + case MBOX_STS_INTERMEDIATE_COMPLETION: + status = QLA_SUCCESS; + break; + + case MBOX_STS_BUSY: + DEBUG2( printk("scsi%ld: %s: Cmd = %08X, ISP BUSY\n", + ha->host_no, __func__, mbx_cmd[0])); + ha->mailbox_timeout_count++; + break; + + default: + DEBUG2(printk("scsi%ld: %s: **** FAILED, cmd = %08X, " + "sts = %08X ****\n", ha->host_no, __func__, + mbx_cmd[0], mbx_sts[0])); + break; + } + spin_unlock_irqrestore(&ha->hardware_lock, flags); + +mbox_exit: + clear_bit(AF_MBOX_COMMAND, &ha->flags); + clear_bit(AF_MBOX_COMMAND_DONE, &ha->flags); + mutex_unlock(&ha->mbox_sem); + + return status; +} + + +/** + * qla4xxx_issue_iocb - issue mailbox iocb command + * @ha: adapter state pointer. + * @buffer: buffer pointer. + * @phys_addr: physical address of buffer. + * @size: size of buffer. + * + * Issues iocbs via mailbox commands. + * TARGET_QUEUE_LOCK must be released. + * ADAPTER_STATE_LOCK must be released. + **/ +int +qla4xxx_issue_iocb(struct scsi_qla_host * ha, void *buffer, + dma_addr_t phys_addr, size_t size) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + int status; + + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_EXECUTE_IOCB_A64; + mbox_cmd[1] = 0; + mbox_cmd[2] = LSDW(phys_addr); + mbox_cmd[3] = MSDW(phys_addr); + status = qla4xxx_mailbox_command(ha, 4, 1, &mbox_cmd[0], &mbox_sts[0]); + return status; +} + +int qla4xxx_conn_close_sess_logout(struct scsi_qla_host * ha, + uint16_t fw_ddb_index, + uint16_t connection_id, + uint16_t option) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_CONN_CLOSE_SESS_LOGOUT; + mbox_cmd[1] = fw_ddb_index; + mbox_cmd[2] = connection_id; + mbox_cmd[3] = LOGOUT_OPTION_RELOGIN; + if (qla4xxx_mailbox_command(ha, 4, 2, &mbox_cmd[0], &mbox_sts[0]) != + QLA_SUCCESS) { + DEBUG2(printk("scsi%ld: %s: MBOX_CMD_CONN_CLOSE_SESS_LOGOUT " + "option %04x failed sts %04X %04X", + ha->host_no, __func__, + option, mbox_sts[0], mbox_sts[1])); + if (mbox_sts[0] == 0x4005) + DEBUG2(printk("%s reason %04X\n", __func__, + mbox_sts[1])); + } + return QLA_SUCCESS; +} + +int qla4xxx_clear_database_entry(struct scsi_qla_host * ha, + uint16_t fw_ddb_index) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_CLEAR_DATABASE_ENTRY; + mbox_cmd[1] = fw_ddb_index; + if (qla4xxx_mailbox_command(ha, 2, 5, &mbox_cmd[0], &mbox_sts[0]) != + QLA_SUCCESS) + return QLA_ERROR; + + return QLA_SUCCESS; +} + +/** + * qla4xxx_initialize_fw_cb - initializes firmware control block. + * @ha: Pointer to host adapter structure. + **/ +int qla4xxx_initialize_fw_cb(struct scsi_qla_host * ha) +{ + struct init_fw_ctrl_blk *init_fw_cb; + dma_addr_t init_fw_cb_dma; + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + int status = QLA_ERROR; + + init_fw_cb = dma_alloc_coherent(&ha->pdev->dev, + sizeof(struct init_fw_ctrl_blk), + &init_fw_cb_dma, GFP_KERNEL); + if (init_fw_cb == NULL) { + DEBUG2(printk("scsi%ld: %s: Unable to alloc init_cb\n", + ha->host_no, __func__)); + return 10; + } + memset(init_fw_cb, 0, sizeof(struct init_fw_ctrl_blk)); + + /* Get Initialize Firmware Control Block. */ + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_GET_INIT_FW_CTRL_BLOCK; + mbox_cmd[2] = LSDW(init_fw_cb_dma); + mbox_cmd[3] = MSDW(init_fw_cb_dma); + if (qla4xxx_mailbox_command(ha, 4, 1, &mbox_cmd[0], &mbox_sts[0]) != + QLA_SUCCESS) { + dma_free_coherent(&ha->pdev->dev, + sizeof(struct init_fw_ctrl_blk), + init_fw_cb, init_fw_cb_dma); + return status; + } + + /* Initialize request and response queues. */ + qla4xxx_init_rings(ha); + + /* Fill in the request and response queue information. */ + init_fw_cb->ReqQConsumerIndex = cpu_to_le16(ha->request_out); + init_fw_cb->ComplQProducerIndex = cpu_to_le16(ha->response_in); + init_fw_cb->ReqQLen = __constant_cpu_to_le16(REQUEST_QUEUE_DEPTH); + init_fw_cb->ComplQLen = __constant_cpu_to_le16(RESPONSE_QUEUE_DEPTH); + init_fw_cb->ReqQAddrLo = cpu_to_le32(LSDW(ha->request_dma)); + init_fw_cb->ReqQAddrHi = cpu_to_le32(MSDW(ha->request_dma)); + init_fw_cb->ComplQAddrLo = cpu_to_le32(LSDW(ha->response_dma)); + init_fw_cb->ComplQAddrHi = cpu_to_le32(MSDW(ha->response_dma)); + init_fw_cb->ShadowRegBufAddrLo = + cpu_to_le32(LSDW(ha->shadow_regs_dma)); + init_fw_cb->ShadowRegBufAddrHi = + cpu_to_le32(MSDW(ha->shadow_regs_dma)); + + /* Set up required options. */ + init_fw_cb->FwOptions |= + __constant_cpu_to_le16(FWOPT_SESSION_MODE | + FWOPT_INITIATOR_MODE); + init_fw_cb->FwOptions &= __constant_cpu_to_le16(~FWOPT_TARGET_MODE); + + /* Save some info in adapter structure. */ + ha->firmware_options = le16_to_cpu(init_fw_cb->FwOptions); + ha->tcp_options = le16_to_cpu(init_fw_cb->TCPOptions); + ha->heartbeat_interval = init_fw_cb->HeartbeatInterval; + memcpy(ha->ip_address, init_fw_cb->IPAddr, + min(sizeof(ha->ip_address), sizeof(init_fw_cb->IPAddr))); + memcpy(ha->subnet_mask, init_fw_cb->SubnetMask, + min(sizeof(ha->subnet_mask), sizeof(init_fw_cb->SubnetMask))); + memcpy(ha->gateway, init_fw_cb->GatewayIPAddr, + min(sizeof(ha->gateway), sizeof(init_fw_cb->GatewayIPAddr))); + memcpy(ha->name_string, init_fw_cb->iSCSINameString, + min(sizeof(ha->name_string), + sizeof(init_fw_cb->iSCSINameString))); + memcpy(ha->alias, init_fw_cb->Alias, + min(sizeof(ha->alias), sizeof(init_fw_cb->Alias))); + + /* Save Command Line Paramater info */ + ha->port_down_retry_count = le16_to_cpu(init_fw_cb->KeepAliveTimeout); + ha->discovery_wait = ql4xdiscoverywait; + + /* Send Initialize Firmware Control Block. */ + mbox_cmd[0] = MBOX_CMD_INITIALIZE_FIRMWARE; + mbox_cmd[1] = 0; + mbox_cmd[2] = LSDW(init_fw_cb_dma); + mbox_cmd[3] = MSDW(init_fw_cb_dma); + if (qla4xxx_mailbox_command(ha, 4, 1, &mbox_cmd[0], &mbox_sts[0]) == + QLA_SUCCESS) + status = QLA_SUCCESS; + else { + DEBUG2(printk("scsi%ld: %s: MBOX_CMD_INITIALIZE_FIRMWARE " + "failed w/ status %04X\n", ha->host_no, __func__, + mbox_sts[0])); + } + dma_free_coherent(&ha->pdev->dev, sizeof(struct init_fw_ctrl_blk), + init_fw_cb, init_fw_cb_dma); + + return status; +} + +/** + * qla4xxx_get_dhcp_ip_address - gets HBA ip address via DHCP + * @ha: Pointer to host adapter structure. + **/ +int qla4xxx_get_dhcp_ip_address(struct scsi_qla_host * ha) +{ + struct init_fw_ctrl_blk *init_fw_cb; + dma_addr_t init_fw_cb_dma; + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + init_fw_cb = dma_alloc_coherent(&ha->pdev->dev, + sizeof(struct init_fw_ctrl_blk), + &init_fw_cb_dma, GFP_KERNEL); + if (init_fw_cb == NULL) { + printk("scsi%ld: %s: Unable to alloc init_cb\n", ha->host_no, + __func__); + return 10; + } + + /* Get Initialize Firmware Control Block. */ + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + memset(init_fw_cb, 0, sizeof(struct init_fw_ctrl_blk)); + mbox_cmd[0] = MBOX_CMD_GET_INIT_FW_CTRL_BLOCK; + mbox_cmd[2] = LSDW(init_fw_cb_dma); + mbox_cmd[3] = MSDW(init_fw_cb_dma); + + if (qla4xxx_mailbox_command(ha, 4, 1, &mbox_cmd[0], &mbox_sts[0]) != + QLA_SUCCESS) { + DEBUG2(printk("scsi%ld: %s: Failed to get init_fw_ctrl_blk\n", + ha->host_no, __func__)); + dma_free_coherent(&ha->pdev->dev, + sizeof(struct init_fw_ctrl_blk), + init_fw_cb, init_fw_cb_dma); + return QLA_ERROR; + } + + /* Save IP Address. */ + memcpy(ha->ip_address, init_fw_cb->IPAddr, + min(sizeof(ha->ip_address), sizeof(init_fw_cb->IPAddr))); + memcpy(ha->subnet_mask, init_fw_cb->SubnetMask, + min(sizeof(ha->subnet_mask), sizeof(init_fw_cb->SubnetMask))); + memcpy(ha->gateway, init_fw_cb->GatewayIPAddr, + min(sizeof(ha->gateway), sizeof(init_fw_cb->GatewayIPAddr))); + + dma_free_coherent(&ha->pdev->dev, sizeof(struct init_fw_ctrl_blk), + init_fw_cb, init_fw_cb_dma); + + return QLA_SUCCESS; +} + +/** + * qla4xxx_get_firmware_state - gets firmware state of HBA + * @ha: Pointer to host adapter structure. + **/ +int qla4xxx_get_firmware_state(struct scsi_qla_host * ha) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + /* Get firmware version */ + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_GET_FW_STATE; + if (qla4xxx_mailbox_command(ha, 1, 4, &mbox_cmd[0], &mbox_sts[0]) != + QLA_SUCCESS) { + DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_FW_STATE failed w/ " + "status %04X\n", ha->host_no, __func__, + mbox_sts[0])); + return QLA_ERROR; + } + ha->firmware_state = mbox_sts[1]; + ha->board_id = mbox_sts[2]; + ha->addl_fw_state = mbox_sts[3]; + DEBUG2(printk("scsi%ld: %s firmware_state=0x%x\n", + ha->host_no, __func__, ha->firmware_state);) + + return QLA_SUCCESS; +} + +/** + * qla4xxx_get_firmware_status - retrieves firmware status + * @ha: Pointer to host adapter structure. + **/ +int qla4xxx_get_firmware_status(struct scsi_qla_host * ha) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + /* Get firmware version */ + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_GET_FW_STATUS; + if (qla4xxx_mailbox_command(ha, 1, 3, &mbox_cmd[0], &mbox_sts[0]) != + QLA_SUCCESS) { + DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_FW_STATUS failed w/ " + "status %04X\n", ha->host_no, __func__, + mbox_sts[0])); + return QLA_ERROR; + } + + /* High-water mark of IOCBs */ + ha->iocb_hiwat = mbox_sts[2]; + if (ha->iocb_hiwat > IOCB_HIWAT_CUSHION) + ha->iocb_hiwat -= IOCB_HIWAT_CUSHION; + else + dev_info(&ha->pdev->dev, "WARNING!!! You have less than %d " + "firmare IOCBs available (%d).\n", + IOCB_HIWAT_CUSHION, ha->iocb_hiwat); + + return QLA_SUCCESS; +} + +/** + * qla4xxx_get_fwddb_entry - retrieves firmware ddb entry + * @ha: Pointer to host adapter structure. + * @fw_ddb_index: Firmware's device database index + * @fw_ddb_entry: Pointer to firmware's device database entry structure + * @num_valid_ddb_entries: Pointer to number of valid ddb entries + * @next_ddb_index: Pointer to next valid device database index + * @fw_ddb_device_state: Pointer to device state + **/ +int qla4xxx_get_fwddb_entry(struct scsi_qla_host *ha, + uint16_t fw_ddb_index, + struct dev_db_entry *fw_ddb_entry, + dma_addr_t fw_ddb_entry_dma, + uint32_t *num_valid_ddb_entries, + uint32_t *next_ddb_index, + uint32_t *fw_ddb_device_state, + uint32_t *conn_err_detail, + uint16_t *tcp_source_port_num, + uint16_t *connection_id) +{ + int status = QLA_ERROR; + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + /* Make sure the device index is valid */ + if (fw_ddb_index >= MAX_DDB_ENTRIES) { + DEBUG2(printk("scsi%ld: %s: index [%d] out of range.\n", + ha->host_no, __func__, fw_ddb_index)); + goto exit_get_fwddb; + } + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_GET_DATABASE_ENTRY; + mbox_cmd[1] = (uint32_t) fw_ddb_index; + mbox_cmd[2] = LSDW(fw_ddb_entry_dma); + mbox_cmd[3] = MSDW(fw_ddb_entry_dma); + if (qla4xxx_mailbox_command(ha, 4, 7, &mbox_cmd[0], &mbox_sts[0]) == + QLA_ERROR) { + DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_DATABASE_ENTRY failed" + " with status 0x%04X\n", ha->host_no, __func__, + mbox_sts[0])); + goto exit_get_fwddb; + } + if (fw_ddb_index != mbox_sts[1]) { + DEBUG2(printk("scsi%ld: %s: index mismatch [%d] != [%d].\n", + ha->host_no, __func__, fw_ddb_index, + mbox_sts[1])); + goto exit_get_fwddb; + } + if (fw_ddb_entry) { + dev_info(&ha->pdev->dev, "DDB[%d] MB0 %04x Tot %d Next %d " + "State %04x ConnErr %08x %d.%d.%d.%d:%04d \"%s\"\n", + fw_ddb_index, mbox_sts[0], mbox_sts[2], mbox_sts[3], + mbox_sts[4], mbox_sts[5], fw_ddb_entry->ipAddr[0], + fw_ddb_entry->ipAddr[1], fw_ddb_entry->ipAddr[2], + fw_ddb_entry->ipAddr[3], + le16_to_cpu(fw_ddb_entry->portNumber), + fw_ddb_entry->iscsiName); + } + if (num_valid_ddb_entries) + *num_valid_ddb_entries = mbox_sts[2]; + if (next_ddb_index) + *next_ddb_index = mbox_sts[3]; + if (fw_ddb_device_state) + *fw_ddb_device_state = mbox_sts[4]; + + /* + * RA: This mailbox has been changed to pass connection error and + * details. Its true for ISP4010 as per Version E - Not sure when it + * was changed. Get the time2wait from the fw_dd_entry field : + * default_time2wait which we call it as minTime2Wait DEV_DB_ENTRY + * struct. + */ + if (conn_err_detail) + *conn_err_detail = mbox_sts[5]; + if (tcp_source_port_num) + *tcp_source_port_num = (uint16_t) mbox_sts[6] >> 16; + if (connection_id) + *connection_id = (uint16_t) mbox_sts[6] & 0x00FF; + status = QLA_SUCCESS; + +exit_get_fwddb: + return status; +} + +/** + * qla4xxx_set_fwddb_entry - sets a ddb entry. + * @ha: Pointer to host adapter structure. + * @fw_ddb_index: Firmware's device database index + * @fw_ddb_entry: Pointer to firmware's ddb entry structure, or NULL. + * + * This routine initializes or updates the adapter's device database + * entry for the specified device. It also triggers a login for the + * specified device. Therefore, it may also be used as a secondary + * login routine when a NULL pointer is specified for the fw_ddb_entry. + **/ +int qla4xxx_set_ddb_entry(struct scsi_qla_host * ha, uint16_t fw_ddb_index, + dma_addr_t fw_ddb_entry_dma) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + /* Do not wait for completion. The firmware will send us an + * ASTS_DATABASE_CHANGED (0x8014) to notify us of the login status. + */ + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + + mbox_cmd[0] = MBOX_CMD_SET_DATABASE_ENTRY; + mbox_cmd[1] = (uint32_t) fw_ddb_index; + mbox_cmd[2] = LSDW(fw_ddb_entry_dma); + mbox_cmd[3] = MSDW(fw_ddb_entry_dma); + return qla4xxx_mailbox_command(ha, 4, 1, &mbox_cmd[0], &mbox_sts[0]); +} + +int qla4xxx_conn_open_session_login(struct scsi_qla_host * ha, + uint16_t fw_ddb_index) +{ + int status = QLA_ERROR; + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + /* Do not wait for completion. The firmware will send us an + * ASTS_DATABASE_CHANGED (0x8014) to notify us of the login status. + */ + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_CONN_OPEN_SESS_LOGIN; + mbox_cmd[1] = (uint32_t) fw_ddb_index; + mbox_cmd[2] = 0; + mbox_cmd[3] = 0; + mbox_cmd[4] = 0; + status = qla4xxx_mailbox_command(ha, 4, 0, &mbox_cmd[0], &mbox_sts[0]); + DEBUG2(printk("%s fw_ddb_index=%d status=%d mbx0_1=0x%x :0x%x\n", + __func__, fw_ddb_index, status, mbox_sts[0], + mbox_sts[1]);) + + return status; +} + +/** + * qla4xxx_get_crash_record - retrieves crash record. + * @ha: Pointer to host adapter structure. + * + * This routine retrieves a crash record from the QLA4010 after an 8002h aen. + **/ +void qla4xxx_get_crash_record(struct scsi_qla_host * ha) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + struct crash_record *crash_record = NULL; + dma_addr_t crash_record_dma = 0; + uint32_t crash_record_size = 0; + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_cmd)); + + /* Get size of crash record. */ + mbox_cmd[0] = MBOX_CMD_GET_CRASH_RECORD; + if (qla4xxx_mailbox_command(ha, 5, 5, &mbox_cmd[0], &mbox_sts[0]) != + QLA_SUCCESS) { + DEBUG2(printk("scsi%ld: %s: ERROR: Unable to retrieve size!\n", + ha->host_no, __func__)); + goto exit_get_crash_record; + } + crash_record_size = mbox_sts[4]; + if (crash_record_size == 0) { + DEBUG2(printk("scsi%ld: %s: ERROR: Crash record size is 0!\n", + ha->host_no, __func__)); + goto exit_get_crash_record; + } + + /* Alloc Memory for Crash Record. */ + crash_record = dma_alloc_coherent(&ha->pdev->dev, crash_record_size, + &crash_record_dma, GFP_KERNEL); + if (crash_record == NULL) + goto exit_get_crash_record; + + /* Get Crash Record. */ + mbox_cmd[0] = MBOX_CMD_GET_CRASH_RECORD; + mbox_cmd[2] = LSDW(crash_record_dma); + mbox_cmd[3] = MSDW(crash_record_dma); + mbox_cmd[4] = crash_record_size; + if (qla4xxx_mailbox_command(ha, 5, 5, &mbox_cmd[0], &mbox_sts[0]) != + QLA_SUCCESS) + goto exit_get_crash_record; + + /* Dump Crash Record. */ + +exit_get_crash_record: + if (crash_record) + dma_free_coherent(&ha->pdev->dev, crash_record_size, + crash_record, crash_record_dma); +} + +/** + * qla4xxx_get_conn_event_log - retrieves connection event log + * @ha: Pointer to host adapter structure. + **/ +void qla4xxx_get_conn_event_log(struct scsi_qla_host * ha) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + struct conn_event_log_entry *event_log = NULL; + dma_addr_t event_log_dma = 0; + uint32_t event_log_size = 0; + uint32_t num_valid_entries; + uint32_t oldest_entry = 0; + uint32_t max_event_log_entries; + uint8_t i; + + + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_cmd)); + + /* Get size of crash record. */ + mbox_cmd[0] = MBOX_CMD_GET_CONN_EVENT_LOG; + if (qla4xxx_mailbox_command(ha, 4, 5, &mbox_cmd[0], &mbox_sts[0]) != + QLA_SUCCESS) + goto exit_get_event_log; + + event_log_size = mbox_sts[4]; + if (event_log_size == 0) + goto exit_get_event_log; + + /* Alloc Memory for Crash Record. */ + event_log = dma_alloc_coherent(&ha->pdev->dev, event_log_size, + &event_log_dma, GFP_KERNEL); + if (event_log == NULL) + goto exit_get_event_log; + + /* Get Crash Record. */ + mbox_cmd[0] = MBOX_CMD_GET_CONN_EVENT_LOG; + mbox_cmd[2] = LSDW(event_log_dma); + mbox_cmd[3] = MSDW(event_log_dma); + if (qla4xxx_mailbox_command(ha, 4, 5, &mbox_cmd[0], &mbox_sts[0]) != + QLA_SUCCESS) { + DEBUG2(printk("scsi%ld: %s: ERROR: Unable to retrieve event " + "log!\n", ha->host_no, __func__)); + goto exit_get_event_log; + } + + /* Dump Event Log. */ + num_valid_entries = mbox_sts[1]; + + max_event_log_entries = event_log_size / + sizeof(struct conn_event_log_entry); + + if (num_valid_entries > max_event_log_entries) + oldest_entry = num_valid_entries % max_event_log_entries; + + DEBUG3(printk("scsi%ld: Connection Event Log Dump (%d entries):\n", + ha->host_no, num_valid_entries)); + + if (extended_error_logging == 3) { + if (oldest_entry == 0) { + /* Circular Buffer has not wrapped around */ + for (i=0; i < num_valid_entries; i++) { + qla4xxx_dump_buffer((uint8_t *)event_log+ + (i*sizeof(*event_log)), + sizeof(*event_log)); + } + } + else { + /* Circular Buffer has wrapped around - + * display accordingly*/ + for (i=oldest_entry; i < max_event_log_entries; i++) { + qla4xxx_dump_buffer((uint8_t *)event_log+ + (i*sizeof(*event_log)), + sizeof(*event_log)); + } + for (i=0; i < oldest_entry; i++) { + qla4xxx_dump_buffer((uint8_t *)event_log+ + (i*sizeof(*event_log)), + sizeof(*event_log)); + } + } + } + +exit_get_event_log: + if (event_log) + dma_free_coherent(&ha->pdev->dev, event_log_size, event_log, + event_log_dma); +} + +/** + * qla4xxx_reset_lun - issues LUN Reset + * @ha: Pointer to host adapter structure. + * @db_entry: Pointer to device database entry + * @un_entry: Pointer to lun entry structure + * + * This routine performs a LUN RESET on the specified target/lun. + * The caller must ensure that the ddb_entry and lun_entry pointers + * are valid before calling this routine. + **/ +int qla4xxx_reset_lun(struct scsi_qla_host * ha, struct ddb_entry * ddb_entry, + int lun) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + int status = QLA_SUCCESS; + + DEBUG2(printk("scsi%ld:%d:%d: lun reset issued\n", ha->host_no, + ddb_entry->os_target_id, lun)); + + /* + * Send lun reset command to ISP, so that the ISP will return all + * outstanding requests with RESET status + */ + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_LUN_RESET; + mbox_cmd[1] = ddb_entry->fw_ddb_index; + mbox_cmd[2] = lun << 8; + mbox_cmd[5] = 0x01; /* Immediate Command Enable */ + qla4xxx_mailbox_command(ha, 6, 1, &mbox_cmd[0], &mbox_sts[0]); + if (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE && + mbox_sts[0] != MBOX_STS_COMMAND_ERROR) + status = QLA_ERROR; + + return status; +} + + +int qla4xxx_get_flash(struct scsi_qla_host * ha, dma_addr_t dma_addr, + uint32_t offset, uint32_t len) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_READ_FLASH; + mbox_cmd[1] = LSDW(dma_addr); + mbox_cmd[2] = MSDW(dma_addr); + mbox_cmd[3] = offset; + mbox_cmd[4] = len; + if (qla4xxx_mailbox_command(ha, 5, 2, &mbox_cmd[0], &mbox_sts[0]) != + QLA_SUCCESS) { + DEBUG2(printk("scsi%ld: %s: MBOX_CMD_READ_FLASH, failed w/ " + "status %04X %04X, offset %08x, len %08x\n", ha->host_no, + __func__, mbox_sts[0], mbox_sts[1], offset, len)); + return QLA_ERROR; + } + return QLA_SUCCESS; +} + +/** + * qla4xxx_get_fw_version - gets firmware version + * @ha: Pointer to host adapter structure. + * + * Retrieves the firmware version on HBA. In QLA4010, mailboxes 2 & 3 may + * hold an address for data. Make sure that we write 0 to those mailboxes, + * if unused. + **/ +int qla4xxx_get_fw_version(struct scsi_qla_host * ha) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + /* Get firmware version. */ + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_ABOUT_FW; + if (qla4xxx_mailbox_command(ha, 4, 5, &mbox_cmd[0], &mbox_sts[0]) != + QLA_SUCCESS) { + DEBUG2(printk("scsi%ld: %s: MBOX_CMD_ABOUT_FW failed w/ " + "status %04X\n", ha->host_no, __func__, mbox_sts[0])); + return QLA_ERROR; + } + + /* Save firmware version information. */ + ha->firmware_version[0] = mbox_sts[1]; + ha->firmware_version[1] = mbox_sts[2]; + ha->patch_number = mbox_sts[3]; + ha->build_number = mbox_sts[4]; + + return QLA_SUCCESS; +} + +int qla4xxx_get_default_ddb(struct scsi_qla_host *ha, dma_addr_t dma_addr) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + + mbox_cmd[0] = MBOX_CMD_GET_DATABASE_ENTRY_DEFAULTS; + mbox_cmd[2] = LSDW(dma_addr); + mbox_cmd[3] = MSDW(dma_addr); + + if (qla4xxx_mailbox_command(ha, 4, 1, &mbox_cmd[0], &mbox_sts[0]) != + QLA_SUCCESS) { + DEBUG2(printk("scsi%ld: %s: failed status %04X\n", + ha->host_no, __func__, mbox_sts[0])); + return QLA_ERROR; + } + return QLA_SUCCESS; +} + +int qla4xxx_req_ddb_entry(struct scsi_qla_host *ha, uint32_t *ddb_index) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + + mbox_cmd[0] = MBOX_CMD_REQUEST_DATABASE_ENTRY; + mbox_cmd[1] = MAX_PRST_DEV_DB_ENTRIES; + + if (qla4xxx_mailbox_command(ha, 2, 3, &mbox_cmd[0], &mbox_sts[0]) != + QLA_SUCCESS) { + if (mbox_sts[0] == MBOX_STS_COMMAND_ERROR) { + *ddb_index = mbox_sts[2]; + } else { + DEBUG2(printk("scsi%ld: %s: failed status %04X\n", + ha->host_no, __func__, mbox_sts[0])); + return QLA_ERROR; + } + } else { + *ddb_index = MAX_PRST_DEV_DB_ENTRIES; + } + + return QLA_SUCCESS; +} + + +int qla4xxx_send_tgts(struct scsi_qla_host *ha, char *ip, uint16_t port) +{ + struct dev_db_entry *fw_ddb_entry; + dma_addr_t fw_ddb_entry_dma; + uint32_t ddb_index; + int ret_val = QLA_SUCCESS; + + + fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, + sizeof(*fw_ddb_entry), + &fw_ddb_entry_dma, GFP_KERNEL); + if (!fw_ddb_entry) { + DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n", + ha->host_no, __func__)); + ret_val = QLA_ERROR; + goto qla4xxx_send_tgts_exit; + } + + ret_val = qla4xxx_get_default_ddb(ha, fw_ddb_entry_dma); + if (ret_val != QLA_SUCCESS) + goto qla4xxx_send_tgts_exit; + + ret_val = qla4xxx_req_ddb_entry(ha, &ddb_index); + if (ret_val != QLA_SUCCESS) + goto qla4xxx_send_tgts_exit; + + memset((void *)fw_ddb_entry->iSCSIAlias, 0, + sizeof(fw_ddb_entry->iSCSIAlias)); + + memset((void *)fw_ddb_entry->iscsiName, 0, + sizeof(fw_ddb_entry->iscsiName)); + + memset((void *)fw_ddb_entry->ipAddr, 0, sizeof(fw_ddb_entry->ipAddr)); + memset((void *)fw_ddb_entry->targetAddr, 0, + sizeof(fw_ddb_entry->targetAddr)); + + fw_ddb_entry->options = (DDB_OPT_DISC_SESSION | DDB_OPT_TARGET); + fw_ddb_entry->portNumber = cpu_to_le16(ntohs(port)); + + fw_ddb_entry->ipAddr[0] = *ip; + fw_ddb_entry->ipAddr[1] = *(ip + 1); + fw_ddb_entry->ipAddr[2] = *(ip + 2); + fw_ddb_entry->ipAddr[3] = *(ip + 3); + + ret_val = qla4xxx_set_ddb_entry(ha, ddb_index, fw_ddb_entry_dma); + +qla4xxx_send_tgts_exit: + dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), + fw_ddb_entry, fw_ddb_entry_dma); + return ret_val; +} + |