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![Himanshu Jha](/assets/img/avatar_default.png)
Use dma_zalloc_coherent instead of dma_alloc_coherent followed by memset 0. Generated-by: scripts/coccinelle/api/alloc/kzalloc-simple.cocci Suggested-by: Luis R. Rodriguez <mcgrof@kernel.org> Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com> Acked-by: Manish Rangankar <Manish.Rangankar@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
1266 lines
35 KiB
C
1266 lines
35 KiB
C
/*
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* QLogic iSCSI HBA Driver
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* Copyright (c) 2003-2013 QLogic Corporation
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*
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* See LICENSE.qla4xxx for copyright and licensing details.
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*/
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#include <scsi/iscsi_if.h>
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#include "ql4_def.h"
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#include "ql4_glbl.h"
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#include "ql4_dbg.h"
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#include "ql4_inline.h"
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static void ql4xxx_set_mac_number(struct scsi_qla_host *ha)
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{
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uint32_t value;
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uint8_t func_number;
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unsigned long flags;
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/* Get the function number */
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spin_lock_irqsave(&ha->hardware_lock, flags);
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value = readw(&ha->reg->ctrl_status);
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spin_unlock_irqrestore(&ha->hardware_lock, flags);
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func_number = (uint8_t) ((value >> 4) & 0x30);
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switch (value & ISP_CONTROL_FN_MASK) {
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case ISP_CONTROL_FN0_SCSI:
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ha->mac_index = 1;
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break;
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case ISP_CONTROL_FN1_SCSI:
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ha->mac_index = 3;
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break;
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default:
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DEBUG2(printk("scsi%ld: %s: Invalid function number, "
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"ispControlStatus = 0x%x\n", ha->host_no,
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__func__, value));
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break;
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}
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DEBUG2(printk("scsi%ld: %s: mac_index %d.\n", ha->host_no, __func__,
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ha->mac_index));
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}
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/**
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* qla4xxx_free_ddb - deallocate ddb
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* @ha: pointer to host adapter structure.
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* @ddb_entry: pointer to device database entry
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*
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* This routine marks a DDB entry INVALID
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**/
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void qla4xxx_free_ddb(struct scsi_qla_host *ha,
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struct ddb_entry *ddb_entry)
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{
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/* Remove device pointer from index mapping arrays */
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ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] =
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(struct ddb_entry *) INVALID_ENTRY;
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ha->tot_ddbs--;
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}
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/**
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* qla4xxx_init_response_q_entries() - Initializes response queue entries.
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* @ha: HA context
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*
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* Beginning of request ring has initialization control block already built
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* by nvram config routine.
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**/
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static void qla4xxx_init_response_q_entries(struct scsi_qla_host *ha)
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{
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uint16_t cnt;
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struct response *pkt;
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pkt = (struct response *)ha->response_ptr;
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for (cnt = 0; cnt < RESPONSE_QUEUE_DEPTH; cnt++) {
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pkt->signature = RESPONSE_PROCESSED;
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pkt++;
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}
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}
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/**
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* qla4xxx_init_rings - initialize hw queues
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* @ha: pointer to host adapter structure.
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*
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* This routine initializes the internal queues for the specified adapter.
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* The QLA4010 requires us to restart the queues at index 0.
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* The QLA4000 doesn't care, so just default to QLA4010's requirement.
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**/
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int qla4xxx_init_rings(struct scsi_qla_host *ha)
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{
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unsigned long flags = 0;
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int i;
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/* Initialize request queue. */
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spin_lock_irqsave(&ha->hardware_lock, flags);
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ha->request_out = 0;
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ha->request_in = 0;
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ha->request_ptr = &ha->request_ring[ha->request_in];
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ha->req_q_count = REQUEST_QUEUE_DEPTH;
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/* Initialize response queue. */
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ha->response_in = 0;
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ha->response_out = 0;
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ha->response_ptr = &ha->response_ring[ha->response_out];
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if (is_qla8022(ha)) {
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writel(0,
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(unsigned long __iomem *)&ha->qla4_82xx_reg->req_q_out);
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writel(0,
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(unsigned long __iomem *)&ha->qla4_82xx_reg->rsp_q_in);
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writel(0,
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(unsigned long __iomem *)&ha->qla4_82xx_reg->rsp_q_out);
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} else if (is_qla8032(ha) || is_qla8042(ha)) {
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writel(0,
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(unsigned long __iomem *)&ha->qla4_83xx_reg->req_q_in);
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writel(0,
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(unsigned long __iomem *)&ha->qla4_83xx_reg->rsp_q_in);
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writel(0,
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(unsigned long __iomem *)&ha->qla4_83xx_reg->rsp_q_out);
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} else {
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/*
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* Initialize DMA Shadow registers. The firmware is really
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* supposed to take care of this, but on some uniprocessor
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* systems, the shadow registers aren't cleared-- causing
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* the interrupt_handler to think there are responses to be
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* processed when there aren't.
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*/
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ha->shadow_regs->req_q_out = __constant_cpu_to_le32(0);
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ha->shadow_regs->rsp_q_in = __constant_cpu_to_le32(0);
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wmb();
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writel(0, &ha->reg->req_q_in);
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writel(0, &ha->reg->rsp_q_out);
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readl(&ha->reg->rsp_q_out);
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}
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qla4xxx_init_response_q_entries(ha);
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/* Initialize mailbox active array */
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for (i = 0; i < MAX_MRB; i++)
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ha->active_mrb_array[i] = NULL;
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spin_unlock_irqrestore(&ha->hardware_lock, flags);
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return QLA_SUCCESS;
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}
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/**
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* qla4xxx_get_sys_info - validate adapter MAC address(es)
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* @ha: pointer to host adapter structure.
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*
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**/
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int qla4xxx_get_sys_info(struct scsi_qla_host *ha)
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{
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struct flash_sys_info *sys_info;
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dma_addr_t sys_info_dma;
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int status = QLA_ERROR;
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sys_info = dma_zalloc_coherent(&ha->pdev->dev, sizeof(*sys_info),
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&sys_info_dma, GFP_KERNEL);
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if (sys_info == NULL) {
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DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
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ha->host_no, __func__));
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goto exit_get_sys_info_no_free;
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}
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/* Get flash sys info */
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if (qla4xxx_get_flash(ha, sys_info_dma, FLASH_OFFSET_SYS_INFO,
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sizeof(*sys_info)) != QLA_SUCCESS) {
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DEBUG2(printk("scsi%ld: %s: get_flash FLASH_OFFSET_SYS_INFO "
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"failed\n", ha->host_no, __func__));
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goto exit_get_sys_info;
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}
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/* Save M.A.C. address & serial_number */
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memcpy(ha->my_mac, &sys_info->physAddr[0].address[0],
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min(sizeof(ha->my_mac),
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sizeof(sys_info->physAddr[0].address)));
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memcpy(ha->serial_number, &sys_info->acSerialNumber,
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min(sizeof(ha->serial_number),
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sizeof(sys_info->acSerialNumber)));
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status = QLA_SUCCESS;
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exit_get_sys_info:
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dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info,
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sys_info_dma);
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exit_get_sys_info_no_free:
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return status;
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}
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/**
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* qla4xxx_init_local_data - initialize adapter specific local data
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* @ha: pointer to host adapter structure.
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*
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**/
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static void qla4xxx_init_local_data(struct scsi_qla_host *ha)
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{
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/* Initialize aen queue */
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ha->aen_q_count = MAX_AEN_ENTRIES;
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}
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static uint8_t
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qla4xxx_wait_for_ip_config(struct scsi_qla_host *ha)
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{
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uint8_t ipv4_wait = 0;
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uint8_t ipv6_wait = 0;
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int8_t ip_address[IPv6_ADDR_LEN] = {0} ;
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/* If both IPv4 & IPv6 are enabled, possibly only one
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* IP address may be acquired, so check to see if we
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* need to wait for another */
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if (is_ipv4_enabled(ha) && is_ipv6_enabled(ha)) {
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if (((ha->addl_fw_state & FW_ADDSTATE_DHCPv4_ENABLED) != 0) &&
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((ha->addl_fw_state &
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FW_ADDSTATE_DHCPv4_LEASE_ACQUIRED) == 0)) {
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ipv4_wait = 1;
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}
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if (((ha->ip_config.ipv6_addl_options &
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IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) != 0) &&
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((ha->ip_config.ipv6_link_local_state ==
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IP_ADDRSTATE_ACQUIRING) ||
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(ha->ip_config.ipv6_addr0_state ==
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IP_ADDRSTATE_ACQUIRING) ||
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(ha->ip_config.ipv6_addr1_state ==
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IP_ADDRSTATE_ACQUIRING))) {
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ipv6_wait = 1;
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if ((ha->ip_config.ipv6_link_local_state ==
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IP_ADDRSTATE_PREFERRED) ||
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(ha->ip_config.ipv6_addr0_state ==
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IP_ADDRSTATE_PREFERRED) ||
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(ha->ip_config.ipv6_addr1_state ==
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IP_ADDRSTATE_PREFERRED)) {
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DEBUG2(printk(KERN_INFO "scsi%ld: %s: "
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"Preferred IP configured."
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" Don't wait!\n", ha->host_no,
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__func__));
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ipv6_wait = 0;
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}
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if (memcmp(&ha->ip_config.ipv6_default_router_addr,
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ip_address, IPv6_ADDR_LEN) == 0) {
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DEBUG2(printk(KERN_INFO "scsi%ld: %s: "
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"No Router configured. "
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"Don't wait!\n", ha->host_no,
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__func__));
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ipv6_wait = 0;
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}
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if ((ha->ip_config.ipv6_default_router_state ==
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IPV6_RTRSTATE_MANUAL) &&
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(ha->ip_config.ipv6_link_local_state ==
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IP_ADDRSTATE_TENTATIVE) &&
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(memcmp(&ha->ip_config.ipv6_link_local_addr,
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&ha->ip_config.ipv6_default_router_addr, 4) ==
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0)) {
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DEBUG2(printk("scsi%ld: %s: LinkLocal Router & "
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"IP configured. Don't wait!\n",
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ha->host_no, __func__));
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ipv6_wait = 0;
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}
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}
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if (ipv4_wait || ipv6_wait) {
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DEBUG2(printk("scsi%ld: %s: Wait for additional "
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"IP(s) \"", ha->host_no, __func__));
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if (ipv4_wait)
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DEBUG2(printk("IPv4 "));
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if (ha->ip_config.ipv6_link_local_state ==
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IP_ADDRSTATE_ACQUIRING)
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DEBUG2(printk("IPv6LinkLocal "));
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if (ha->ip_config.ipv6_addr0_state ==
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IP_ADDRSTATE_ACQUIRING)
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DEBUG2(printk("IPv6Addr0 "));
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if (ha->ip_config.ipv6_addr1_state ==
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IP_ADDRSTATE_ACQUIRING)
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DEBUG2(printk("IPv6Addr1 "));
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DEBUG2(printk("\"\n"));
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}
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}
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return ipv4_wait|ipv6_wait;
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}
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static int qla4_80xx_is_minidump_dma_capable(struct scsi_qla_host *ha,
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struct qla4_8xxx_minidump_template_hdr *md_hdr)
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{
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int offset = (is_qla8022(ha)) ? QLA8022_TEMPLATE_CAP_OFFSET :
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QLA83XX_TEMPLATE_CAP_OFFSET;
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int rval = 1;
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uint32_t *cap_offset;
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cap_offset = (uint32_t *)((char *)md_hdr + offset);
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if (!(le32_to_cpu(*cap_offset) & BIT_0)) {
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ql4_printk(KERN_INFO, ha, "PEX DMA Not supported %d\n",
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*cap_offset);
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rval = 0;
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}
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return rval;
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}
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/**
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* qla4xxx_alloc_fw_dump - Allocate memory for minidump data.
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* @ha: pointer to host adapter structure.
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**/
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void qla4xxx_alloc_fw_dump(struct scsi_qla_host *ha)
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{
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int status;
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uint32_t capture_debug_level;
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int hdr_entry_bit, k;
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void *md_tmp;
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dma_addr_t md_tmp_dma;
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struct qla4_8xxx_minidump_template_hdr *md_hdr;
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int dma_capable;
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if (ha->fw_dump) {
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ql4_printk(KERN_WARNING, ha,
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"Firmware dump previously allocated.\n");
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return;
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}
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status = qla4xxx_req_template_size(ha);
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if (status != QLA_SUCCESS) {
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ql4_printk(KERN_INFO, ha,
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"scsi%ld: Failed to get template size\n",
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ha->host_no);
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return;
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}
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clear_bit(AF_82XX_FW_DUMPED, &ha->flags);
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/* Allocate memory for saving the template */
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md_tmp = dma_alloc_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size,
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&md_tmp_dma, GFP_KERNEL);
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if (!md_tmp) {
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ql4_printk(KERN_INFO, ha,
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"scsi%ld: Failed to allocate DMA memory\n",
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ha->host_no);
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return;
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}
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/* Request template */
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status = qla4xxx_get_minidump_template(ha, md_tmp_dma);
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if (status != QLA_SUCCESS) {
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ql4_printk(KERN_INFO, ha,
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"scsi%ld: Failed to get minidump template\n",
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ha->host_no);
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goto alloc_cleanup;
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}
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md_hdr = (struct qla4_8xxx_minidump_template_hdr *)md_tmp;
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dma_capable = qla4_80xx_is_minidump_dma_capable(ha, md_hdr);
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capture_debug_level = md_hdr->capture_debug_level;
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/* Get capture mask based on module loadtime setting. */
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if ((ql4xmdcapmask >= 0x3 && ql4xmdcapmask <= 0x7F) ||
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(ql4xmdcapmask == 0xFF && dma_capable)) {
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ha->fw_dump_capture_mask = ql4xmdcapmask;
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} else {
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if (ql4xmdcapmask == 0xFF)
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ql4_printk(KERN_INFO, ha, "Falling back to default capture mask, as PEX DMA is not supported\n");
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ha->fw_dump_capture_mask = capture_debug_level;
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}
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md_hdr->driver_capture_mask = ha->fw_dump_capture_mask;
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DEBUG2(ql4_printk(KERN_INFO, ha, "Minimum num of entries = %d\n",
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md_hdr->num_of_entries));
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DEBUG2(ql4_printk(KERN_INFO, ha, "Dump template size = %d\n",
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ha->fw_dump_tmplt_size));
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DEBUG2(ql4_printk(KERN_INFO, ha, "Selected Capture mask =0x%x\n",
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ha->fw_dump_capture_mask));
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/* Calculate fw_dump_size */
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for (hdr_entry_bit = 0x2, k = 1; (hdr_entry_bit & 0xFF);
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hdr_entry_bit <<= 1, k++) {
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if (hdr_entry_bit & ha->fw_dump_capture_mask)
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ha->fw_dump_size += md_hdr->capture_size_array[k];
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}
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|
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/* Total firmware dump size including command header */
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ha->fw_dump_size += ha->fw_dump_tmplt_size;
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ha->fw_dump = vmalloc(ha->fw_dump_size);
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if (!ha->fw_dump)
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goto alloc_cleanup;
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DEBUG2(ql4_printk(KERN_INFO, ha,
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"Minidump Template Size = 0x%x KB\n",
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ha->fw_dump_tmplt_size));
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DEBUG2(ql4_printk(KERN_INFO, ha,
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"Total Minidump size = 0x%x KB\n", ha->fw_dump_size));
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|
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memcpy(ha->fw_dump, md_tmp, ha->fw_dump_tmplt_size);
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ha->fw_dump_tmplt_hdr = ha->fw_dump;
|
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|
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alloc_cleanup:
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dma_free_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size,
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md_tmp, md_tmp_dma);
|
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}
|
|
|
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static int qla4xxx_fw_ready(struct scsi_qla_host *ha)
|
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{
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uint32_t timeout_count;
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int ready = 0;
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|
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DEBUG2(ql4_printk(KERN_INFO, ha, "Waiting for Firmware Ready..\n"));
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for (timeout_count = ADAPTER_INIT_TOV; timeout_count > 0;
|
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timeout_count--) {
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if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
|
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qla4xxx_get_dhcp_ip_address(ha);
|
|
|
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/* Get firmware state. */
|
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if (qla4xxx_get_firmware_state(ha) != QLA_SUCCESS) {
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DEBUG2(printk("scsi%ld: %s: unable to get firmware "
|
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"state\n", ha->host_no, __func__));
|
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break;
|
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}
|
|
|
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if (ha->firmware_state & FW_STATE_ERROR) {
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DEBUG2(printk("scsi%ld: %s: an unrecoverable error has"
|
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" occurred\n", ha->host_no, __func__));
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break;
|
|
|
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}
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if (ha->firmware_state & FW_STATE_CONFIG_WAIT) {
|
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/*
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* The firmware has not yet been issued an Initialize
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* Firmware command, so issue it now.
|
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*/
|
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if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR)
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break;
|
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|
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/* Go back and test for ready state - no wait. */
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continue;
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}
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|
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if (ha->firmware_state & FW_STATE_WAIT_AUTOCONNECT) {
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DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:"
|
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"AUTOCONNECT in progress\n",
|
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ha->host_no, __func__));
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}
|
|
|
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if (ha->firmware_state & FW_STATE_CONFIGURING_IP) {
|
|
DEBUG2(printk(KERN_INFO "scsi%ld: %s: fwstate:"
|
|
" CONFIGURING IP\n",
|
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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_qla80XX(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;
|
|
|
|
if (is_qla80XX(ha) && !test_bit(AF_INIT_DONE, &ha->flags))
|
|
qla4xxx_alloc_fw_dump(ha);
|
|
|
|
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);
|
|
|
|
qla4xxx_init_rings(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;
|
|
|
|
/*
|
|
* 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;
|
|
|
|
qla4xxx_init_local_data(ha);
|
|
|
|
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:
|
|
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:
|
|
qla4xxx_update_session_conn_param(ha, ddb_entry);
|
|
ddb_entry->unblock_sess(ddb_entry->sess);
|
|
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:
|
|
case DDB_DS_DISCOVERY:
|
|
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);
|
|
}
|
|
|