--- /dev/null
+/*
+ * 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;
+
+ /* 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__));
+ return status;
+ }
+ /* Mailbox code active */
+ wait_count = MBOX_TOV * 100;
+
+ while (wait_count--) {
+ mutex_lock(&ha->mbox_sem);
+ if (!test_bit(AF_MBOX_COMMAND, &ha->flags)) {
+ set_bit(AF_MBOX_COMMAND, &ha->flags);
+ mutex_unlock(&ha->mbox_sem);
+ break;
+ }
+ mutex_unlock(&ha->mbox_sem);
+ if (!wait_count) {
+ DEBUG2(printk("scsi%ld: %s: mbox_sem failed\n",
+ ha->host_no, __func__));
+ return status;
+ }
+ msleep(10);
+ }
+
+ /* 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 */
+
+ /*
+ * 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;
+ 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);
+ }
+
+ /* 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:
+ mutex_lock(&ha->mbox_sem);
+ clear_bit(AF_MBOX_COMMAND, &ha->flags);
+ mutex_unlock(&ha->mbox_sem);
+ clear_bit(AF_MBOX_COMMAND_DONE, &ha->flags);
+
+ 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 (ql4xextended_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;
+}
+
git://git.onelab.eu / linux-2.6.git / blobdiff