![Michael Hernandez](/assets/img/avatar_default.png)
Replaced existing multiple queue functionality with framework that allows for the creation of pairs of request and response queues, either at start of day or dynamically. Queue pair creation depend on module parameter "ql2xmqsupport", which need to be enabled to create queue pair. Signed-off-by: Sawan Chandak <sawan.chandak@cavium.com> Signed-off-by: Michael Hernandez <michael.hernandez@cavium.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com> Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
865 lines
22 KiB
C
865 lines
22 KiB
C
/*
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* QLogic Fibre Channel HBA Driver
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* Copyright (c) 2003-2014 QLogic Corporation
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*
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* See LICENSE.qla2xxx for copyright and licensing details.
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*/
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#include "qla_def.h"
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#include "qla_gbl.h"
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#include "qla_target.h"
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#include <linux/moduleparam.h>
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#include <linux/vmalloc.h>
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#include <linux/slab.h>
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#include <linux/list.h>
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#include <scsi/scsi_tcq.h>
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#include <scsi/scsicam.h>
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#include <linux/delay.h>
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void
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qla2x00_vp_stop_timer(scsi_qla_host_t *vha)
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{
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if (vha->vp_idx && vha->timer_active) {
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del_timer_sync(&vha->timer);
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vha->timer_active = 0;
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}
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}
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static uint32_t
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qla24xx_allocate_vp_id(scsi_qla_host_t *vha)
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{
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uint32_t vp_id;
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struct qla_hw_data *ha = vha->hw;
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unsigned long flags;
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/* Find an empty slot and assign an vp_id */
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mutex_lock(&ha->vport_lock);
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vp_id = find_first_zero_bit(ha->vp_idx_map, ha->max_npiv_vports + 1);
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if (vp_id > ha->max_npiv_vports) {
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ql_dbg(ql_dbg_vport, vha, 0xa000,
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"vp_id %d is bigger than max-supported %d.\n",
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vp_id, ha->max_npiv_vports);
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mutex_unlock(&ha->vport_lock);
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return vp_id;
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}
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set_bit(vp_id, ha->vp_idx_map);
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ha->num_vhosts++;
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vha->vp_idx = vp_id;
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spin_lock_irqsave(&ha->vport_slock, flags);
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list_add_tail(&vha->list, &ha->vp_list);
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qlt_update_vp_map(vha, SET_VP_IDX);
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spin_unlock_irqrestore(&ha->vport_slock, flags);
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mutex_unlock(&ha->vport_lock);
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return vp_id;
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}
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void
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qla24xx_deallocate_vp_id(scsi_qla_host_t *vha)
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{
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uint16_t vp_id;
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struct qla_hw_data *ha = vha->hw;
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unsigned long flags = 0;
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mutex_lock(&ha->vport_lock);
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/*
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* Wait for all pending activities to finish before removing vport from
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* the list.
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* Lock needs to be held for safe removal from the list (it
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* ensures no active vp_list traversal while the vport is removed
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* from the queue)
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*/
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spin_lock_irqsave(&ha->vport_slock, flags);
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while (atomic_read(&vha->vref_count)) {
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spin_unlock_irqrestore(&ha->vport_slock, flags);
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msleep(500);
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spin_lock_irqsave(&ha->vport_slock, flags);
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}
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list_del(&vha->list);
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qlt_update_vp_map(vha, RESET_VP_IDX);
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spin_unlock_irqrestore(&ha->vport_slock, flags);
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vp_id = vha->vp_idx;
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ha->num_vhosts--;
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clear_bit(vp_id, ha->vp_idx_map);
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mutex_unlock(&ha->vport_lock);
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}
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static scsi_qla_host_t *
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qla24xx_find_vhost_by_name(struct qla_hw_data *ha, uint8_t *port_name)
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{
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scsi_qla_host_t *vha;
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struct scsi_qla_host *tvha;
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unsigned long flags;
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spin_lock_irqsave(&ha->vport_slock, flags);
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/* Locate matching device in database. */
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list_for_each_entry_safe(vha, tvha, &ha->vp_list, list) {
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if (!memcmp(port_name, vha->port_name, WWN_SIZE)) {
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spin_unlock_irqrestore(&ha->vport_slock, flags);
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return vha;
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}
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}
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spin_unlock_irqrestore(&ha->vport_slock, flags);
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return NULL;
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}
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/*
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* qla2x00_mark_vp_devices_dead
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* Updates fcport state when device goes offline.
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*
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* Input:
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* ha = adapter block pointer.
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* fcport = port structure pointer.
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*
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* Return:
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* None.
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*
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* Context:
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*/
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static void
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qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha)
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{
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/*
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* !!! NOTE !!!
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* This function, if called in contexts other than vp create, disable
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* or delete, please make sure this is synchronized with the
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* delete thread.
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*/
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fc_port_t *fcport;
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list_for_each_entry(fcport, &vha->vp_fcports, list) {
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ql_dbg(ql_dbg_vport, vha, 0xa001,
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"Marking port dead, loop_id=0x%04x : %x.\n",
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fcport->loop_id, fcport->vha->vp_idx);
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qla2x00_mark_device_lost(vha, fcport, 0, 0);
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qla2x00_set_fcport_state(fcport, FCS_UNCONFIGURED);
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}
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}
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int
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qla24xx_disable_vp(scsi_qla_host_t *vha)
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{
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unsigned long flags;
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int ret;
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ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
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atomic_set(&vha->loop_state, LOOP_DOWN);
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atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
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/* Remove port id from vp target map */
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spin_lock_irqsave(&vha->hw->vport_slock, flags);
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qlt_update_vp_map(vha, RESET_AL_PA);
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spin_unlock_irqrestore(&vha->hw->vport_slock, flags);
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qla2x00_mark_vp_devices_dead(vha);
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atomic_set(&vha->vp_state, VP_FAILED);
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vha->flags.management_server_logged_in = 0;
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if (ret == QLA_SUCCESS) {
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fc_vport_set_state(vha->fc_vport, FC_VPORT_DISABLED);
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} else {
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fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
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return -1;
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}
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return 0;
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}
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int
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qla24xx_enable_vp(scsi_qla_host_t *vha)
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{
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int ret;
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struct qla_hw_data *ha = vha->hw;
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scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
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/* Check if physical ha port is Up */
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if (atomic_read(&base_vha->loop_state) == LOOP_DOWN ||
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atomic_read(&base_vha->loop_state) == LOOP_DEAD ||
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!(ha->current_topology & ISP_CFG_F)) {
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vha->vp_err_state = VP_ERR_PORTDWN;
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fc_vport_set_state(vha->fc_vport, FC_VPORT_LINKDOWN);
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goto enable_failed;
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}
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/* Initialize the new vport unless it is a persistent port */
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mutex_lock(&ha->vport_lock);
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ret = qla24xx_modify_vp_config(vha);
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mutex_unlock(&ha->vport_lock);
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if (ret != QLA_SUCCESS) {
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fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
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goto enable_failed;
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}
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ql_dbg(ql_dbg_taskm, vha, 0x801a,
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"Virtual port with id: %d - Enabled.\n", vha->vp_idx);
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return 0;
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enable_failed:
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ql_dbg(ql_dbg_taskm, vha, 0x801b,
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"Virtual port with id: %d - Disabled.\n", vha->vp_idx);
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return 1;
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}
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static void
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qla24xx_configure_vp(scsi_qla_host_t *vha)
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{
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struct fc_vport *fc_vport;
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int ret;
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fc_vport = vha->fc_vport;
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ql_dbg(ql_dbg_vport, vha, 0xa002,
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"%s: change request #3.\n", __func__);
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ret = qla2x00_send_change_request(vha, 0x3, vha->vp_idx);
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if (ret != QLA_SUCCESS) {
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ql_dbg(ql_dbg_vport, vha, 0xa003, "Failed to enable "
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"receiving of RSCN requests: 0x%x.\n", ret);
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return;
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} else {
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/* Corresponds to SCR enabled */
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clear_bit(VP_SCR_NEEDED, &vha->vp_flags);
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}
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vha->flags.online = 1;
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if (qla24xx_configure_vhba(vha))
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return;
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atomic_set(&vha->vp_state, VP_ACTIVE);
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fc_vport_set_state(fc_vport, FC_VPORT_ACTIVE);
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}
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void
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qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb)
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{
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scsi_qla_host_t *vha;
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struct qla_hw_data *ha = rsp->hw;
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int i = 0;
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unsigned long flags;
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spin_lock_irqsave(&ha->vport_slock, flags);
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list_for_each_entry(vha, &ha->vp_list, list) {
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if (vha->vp_idx) {
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atomic_inc(&vha->vref_count);
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spin_unlock_irqrestore(&ha->vport_slock, flags);
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switch (mb[0]) {
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case MBA_LIP_OCCURRED:
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case MBA_LOOP_UP:
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case MBA_LOOP_DOWN:
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case MBA_LIP_RESET:
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case MBA_POINT_TO_POINT:
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case MBA_CHG_IN_CONNECTION:
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case MBA_PORT_UPDATE:
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case MBA_RSCN_UPDATE:
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ql_dbg(ql_dbg_async, vha, 0x5024,
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"Async_event for VP[%d], mb=0x%x vha=%p.\n",
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i, *mb, vha);
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qla2x00_async_event(vha, rsp, mb);
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break;
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}
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spin_lock_irqsave(&ha->vport_slock, flags);
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atomic_dec(&vha->vref_count);
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}
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i++;
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}
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spin_unlock_irqrestore(&ha->vport_slock, flags);
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}
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int
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qla2x00_vp_abort_isp(scsi_qla_host_t *vha)
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{
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/*
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* Physical port will do most of the abort and recovery work. We can
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* just treat it as a loop down
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*/
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if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
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atomic_set(&vha->loop_state, LOOP_DOWN);
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qla2x00_mark_all_devices_lost(vha, 0);
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} else {
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if (!atomic_read(&vha->loop_down_timer))
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atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
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}
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/*
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* To exclusively reset vport, we need to log it out first. Note: this
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* control_vp can fail if ISP reset is already issued, this is
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* expected, as the vp would be already logged out due to ISP reset.
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*/
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if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
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qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
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ql_dbg(ql_dbg_taskm, vha, 0x801d,
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"Scheduling enable of Vport %d.\n", vha->vp_idx);
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return qla24xx_enable_vp(vha);
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}
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static int
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qla2x00_do_dpc_vp(scsi_qla_host_t *vha)
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{
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struct qla_hw_data *ha = vha->hw;
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scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
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ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x4012,
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"Entering %s vp_flags: 0x%lx.\n", __func__, vha->vp_flags);
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qla2x00_do_work(vha);
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/* Check if Fw is ready to configure VP first */
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if (test_bit(VP_CONFIG_OK, &base_vha->vp_flags)) {
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if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) {
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/* VP acquired. complete port configuration */
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ql_dbg(ql_dbg_dpc, vha, 0x4014,
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"Configure VP scheduled.\n");
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qla24xx_configure_vp(vha);
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ql_dbg(ql_dbg_dpc, vha, 0x4015,
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"Configure VP end.\n");
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return 0;
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}
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}
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if (test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) {
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ql_dbg(ql_dbg_dpc, vha, 0x4016,
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"FCPort update scheduled.\n");
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qla2x00_update_fcports(vha);
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clear_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags);
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ql_dbg(ql_dbg_dpc, vha, 0x4017,
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"FCPort update end.\n");
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}
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if ((test_and_clear_bit(RELOGIN_NEEDED, &vha->dpc_flags)) &&
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!test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) &&
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atomic_read(&vha->loop_state) != LOOP_DOWN) {
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ql_dbg(ql_dbg_dpc, vha, 0x4018,
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"Relogin needed scheduled.\n");
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qla2x00_relogin(vha);
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ql_dbg(ql_dbg_dpc, vha, 0x4019,
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"Relogin needed end.\n");
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}
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if (test_and_clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) &&
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(!(test_and_set_bit(RESET_ACTIVE, &vha->dpc_flags)))) {
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clear_bit(RESET_ACTIVE, &vha->dpc_flags);
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}
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if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
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if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) {
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ql_dbg(ql_dbg_dpc, vha, 0x401a,
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"Loop resync scheduled.\n");
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qla2x00_loop_resync(vha);
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clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags);
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ql_dbg(ql_dbg_dpc, vha, 0x401b,
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"Loop resync end.\n");
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}
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}
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ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x401c,
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"Exiting %s.\n", __func__);
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return 0;
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}
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void
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qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha)
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{
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struct qla_hw_data *ha = vha->hw;
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scsi_qla_host_t *vp;
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unsigned long flags = 0;
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if (vha->vp_idx)
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return;
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if (list_empty(&ha->vp_list))
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return;
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clear_bit(VP_DPC_NEEDED, &vha->dpc_flags);
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if (!(ha->current_topology & ISP_CFG_F))
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return;
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spin_lock_irqsave(&ha->vport_slock, flags);
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list_for_each_entry(vp, &ha->vp_list, list) {
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if (vp->vp_idx) {
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atomic_inc(&vp->vref_count);
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spin_unlock_irqrestore(&ha->vport_slock, flags);
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qla2x00_do_dpc_vp(vp);
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spin_lock_irqsave(&ha->vport_slock, flags);
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atomic_dec(&vp->vref_count);
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}
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}
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spin_unlock_irqrestore(&ha->vport_slock, flags);
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}
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int
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qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport)
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{
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scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
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struct qla_hw_data *ha = base_vha->hw;
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scsi_qla_host_t *vha;
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uint8_t port_name[WWN_SIZE];
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if (fc_vport->roles != FC_PORT_ROLE_FCP_INITIATOR)
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return VPCERR_UNSUPPORTED;
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/* Check up the F/W and H/W support NPIV */
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if (!ha->flags.npiv_supported)
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return VPCERR_UNSUPPORTED;
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/* Check up whether npiv supported switch presented */
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if (!(ha->switch_cap & FLOGI_MID_SUPPORT))
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return VPCERR_NO_FABRIC_SUPP;
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/* Check up unique WWPN */
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u64_to_wwn(fc_vport->port_name, port_name);
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if (!memcmp(port_name, base_vha->port_name, WWN_SIZE))
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return VPCERR_BAD_WWN;
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vha = qla24xx_find_vhost_by_name(ha, port_name);
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if (vha)
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return VPCERR_BAD_WWN;
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/* Check up max-npiv-supports */
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if (ha->num_vhosts > ha->max_npiv_vports) {
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ql_dbg(ql_dbg_vport, vha, 0xa004,
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"num_vhosts %ud is bigger "
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"than max_npiv_vports %ud.\n",
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ha->num_vhosts, ha->max_npiv_vports);
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return VPCERR_UNSUPPORTED;
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}
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return 0;
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}
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scsi_qla_host_t *
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qla24xx_create_vhost(struct fc_vport *fc_vport)
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{
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scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
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struct qla_hw_data *ha = base_vha->hw;
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scsi_qla_host_t *vha;
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struct scsi_host_template *sht = &qla2xxx_driver_template;
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struct Scsi_Host *host;
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vha = qla2x00_create_host(sht, ha);
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if (!vha) {
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|
ql_log(ql_log_warn, vha, 0xa005,
|
|
"scsi_host_alloc() failed for vport.\n");
|
|
return(NULL);
|
|
}
|
|
|
|
host = vha->host;
|
|
fc_vport->dd_data = vha;
|
|
/* New host info */
|
|
u64_to_wwn(fc_vport->node_name, vha->node_name);
|
|
u64_to_wwn(fc_vport->port_name, vha->port_name);
|
|
|
|
vha->fc_vport = fc_vport;
|
|
vha->device_flags = 0;
|
|
vha->vp_idx = qla24xx_allocate_vp_id(vha);
|
|
if (vha->vp_idx > ha->max_npiv_vports) {
|
|
ql_dbg(ql_dbg_vport, vha, 0xa006,
|
|
"Couldn't allocate vp_id.\n");
|
|
goto create_vhost_failed;
|
|
}
|
|
vha->mgmt_svr_loop_id = 10 + vha->vp_idx;
|
|
|
|
vha->dpc_flags = 0L;
|
|
|
|
/*
|
|
* To fix the issue of processing a parent's RSCN for the vport before
|
|
* its SCR is complete.
|
|
*/
|
|
set_bit(VP_SCR_NEEDED, &vha->vp_flags);
|
|
atomic_set(&vha->loop_state, LOOP_DOWN);
|
|
atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
|
|
|
|
qla2x00_start_timer(vha, qla2x00_timer, WATCH_INTERVAL);
|
|
|
|
vha->req = base_vha->req;
|
|
host->can_queue = base_vha->req->length + 128;
|
|
host->cmd_per_lun = 3;
|
|
if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif)
|
|
host->max_cmd_len = 32;
|
|
else
|
|
host->max_cmd_len = MAX_CMDSZ;
|
|
host->max_channel = MAX_BUSES - 1;
|
|
host->max_lun = ql2xmaxlun;
|
|
host->unique_id = host->host_no;
|
|
host->max_id = ha->max_fibre_devices;
|
|
host->transportt = qla2xxx_transport_vport_template;
|
|
|
|
ql_dbg(ql_dbg_vport, vha, 0xa007,
|
|
"Detect vport hba %ld at address = %p.\n",
|
|
vha->host_no, vha);
|
|
|
|
vha->flags.init_done = 1;
|
|
|
|
mutex_lock(&ha->vport_lock);
|
|
set_bit(vha->vp_idx, ha->vp_idx_map);
|
|
ha->cur_vport_count++;
|
|
mutex_unlock(&ha->vport_lock);
|
|
|
|
return vha;
|
|
|
|
create_vhost_failed:
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
qla25xx_free_req_que(struct scsi_qla_host *vha, struct req_que *req)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
uint16_t que_id = req->id;
|
|
|
|
dma_free_coherent(&ha->pdev->dev, (req->length + 1) *
|
|
sizeof(request_t), req->ring, req->dma);
|
|
req->ring = NULL;
|
|
req->dma = 0;
|
|
if (que_id) {
|
|
ha->req_q_map[que_id] = NULL;
|
|
mutex_lock(&ha->vport_lock);
|
|
clear_bit(que_id, ha->req_qid_map);
|
|
mutex_unlock(&ha->vport_lock);
|
|
}
|
|
kfree(req->outstanding_cmds);
|
|
kfree(req);
|
|
req = NULL;
|
|
}
|
|
|
|
static void
|
|
qla25xx_free_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
uint16_t que_id = rsp->id;
|
|
|
|
if (rsp->msix && rsp->msix->have_irq) {
|
|
free_irq(rsp->msix->vector, rsp->msix->handle);
|
|
rsp->msix->have_irq = 0;
|
|
rsp->msix->in_use = 0;
|
|
rsp->msix->handle = NULL;
|
|
}
|
|
dma_free_coherent(&ha->pdev->dev, (rsp->length + 1) *
|
|
sizeof(response_t), rsp->ring, rsp->dma);
|
|
rsp->ring = NULL;
|
|
rsp->dma = 0;
|
|
if (que_id) {
|
|
ha->rsp_q_map[que_id] = NULL;
|
|
mutex_lock(&ha->vport_lock);
|
|
clear_bit(que_id, ha->rsp_qid_map);
|
|
mutex_unlock(&ha->vport_lock);
|
|
}
|
|
kfree(rsp);
|
|
rsp = NULL;
|
|
}
|
|
|
|
int
|
|
qla25xx_delete_req_que(struct scsi_qla_host *vha, struct req_que *req)
|
|
{
|
|
int ret = -1;
|
|
|
|
if (req) {
|
|
req->options |= BIT_0;
|
|
ret = qla25xx_init_req_que(vha, req);
|
|
}
|
|
if (ret == QLA_SUCCESS)
|
|
qla25xx_free_req_que(vha, req);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
qla25xx_delete_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
|
|
{
|
|
int ret = -1;
|
|
|
|
if (rsp) {
|
|
rsp->options |= BIT_0;
|
|
ret = qla25xx_init_rsp_que(vha, rsp);
|
|
}
|
|
if (ret == QLA_SUCCESS)
|
|
qla25xx_free_rsp_que(vha, rsp);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Delete all queues for a given vhost */
|
|
int
|
|
qla25xx_delete_queues(struct scsi_qla_host *vha)
|
|
{
|
|
int cnt, ret = 0;
|
|
struct req_que *req = NULL;
|
|
struct rsp_que *rsp = NULL;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct qla_qpair *qpair, *tqpair;
|
|
|
|
if (ql2xmqsupport) {
|
|
list_for_each_entry_safe(qpair, tqpair, &vha->qp_list,
|
|
qp_list_elem)
|
|
qla2xxx_delete_qpair(vha, qpair);
|
|
} else {
|
|
/* Delete request queues */
|
|
for (cnt = 1; cnt < ha->max_req_queues; cnt++) {
|
|
req = ha->req_q_map[cnt];
|
|
if (req && test_bit(cnt, ha->req_qid_map)) {
|
|
ret = qla25xx_delete_req_que(vha, req);
|
|
if (ret != QLA_SUCCESS) {
|
|
ql_log(ql_log_warn, vha, 0x00ea,
|
|
"Couldn't delete req que %d.\n",
|
|
req->id);
|
|
return ret;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Delete response queues */
|
|
for (cnt = 1; cnt < ha->max_rsp_queues; cnt++) {
|
|
rsp = ha->rsp_q_map[cnt];
|
|
if (rsp && test_bit(cnt, ha->rsp_qid_map)) {
|
|
ret = qla25xx_delete_rsp_que(vha, rsp);
|
|
if (ret != QLA_SUCCESS) {
|
|
ql_log(ql_log_warn, vha, 0x00eb,
|
|
"Couldn't delete rsp que %d.\n",
|
|
rsp->id);
|
|
return ret;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
qla25xx_create_req_que(struct qla_hw_data *ha, uint16_t options,
|
|
uint8_t vp_idx, uint16_t rid, int rsp_que, uint8_t qos)
|
|
{
|
|
int ret = 0;
|
|
struct req_que *req = NULL;
|
|
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
|
|
uint16_t que_id = 0;
|
|
device_reg_t *reg;
|
|
uint32_t cnt;
|
|
|
|
req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
|
|
if (req == NULL) {
|
|
ql_log(ql_log_fatal, base_vha, 0x00d9,
|
|
"Failed to allocate memory for request queue.\n");
|
|
goto failed;
|
|
}
|
|
|
|
req->length = REQUEST_ENTRY_CNT_24XX;
|
|
req->ring = dma_alloc_coherent(&ha->pdev->dev,
|
|
(req->length + 1) * sizeof(request_t),
|
|
&req->dma, GFP_KERNEL);
|
|
if (req->ring == NULL) {
|
|
ql_log(ql_log_fatal, base_vha, 0x00da,
|
|
"Failed to allocate memory for request_ring.\n");
|
|
goto que_failed;
|
|
}
|
|
|
|
ret = qla2x00_alloc_outstanding_cmds(ha, req);
|
|
if (ret != QLA_SUCCESS)
|
|
goto que_failed;
|
|
|
|
mutex_lock(&ha->mq_lock);
|
|
que_id = find_first_zero_bit(ha->req_qid_map, ha->max_req_queues);
|
|
if (que_id >= ha->max_req_queues) {
|
|
mutex_unlock(&ha->mq_lock);
|
|
ql_log(ql_log_warn, base_vha, 0x00db,
|
|
"No resources to create additional request queue.\n");
|
|
goto que_failed;
|
|
}
|
|
set_bit(que_id, ha->req_qid_map);
|
|
ha->req_q_map[que_id] = req;
|
|
req->rid = rid;
|
|
req->vp_idx = vp_idx;
|
|
req->qos = qos;
|
|
|
|
ql_dbg(ql_dbg_multiq, base_vha, 0xc002,
|
|
"queue_id=%d rid=%d vp_idx=%d qos=%d.\n",
|
|
que_id, req->rid, req->vp_idx, req->qos);
|
|
ql_dbg(ql_dbg_init, base_vha, 0x00dc,
|
|
"queue_id=%d rid=%d vp_idx=%d qos=%d.\n",
|
|
que_id, req->rid, req->vp_idx, req->qos);
|
|
if (rsp_que < 0)
|
|
req->rsp = NULL;
|
|
else
|
|
req->rsp = ha->rsp_q_map[rsp_que];
|
|
/* Use alternate PCI bus number */
|
|
if (MSB(req->rid))
|
|
options |= BIT_4;
|
|
/* Use alternate PCI devfn */
|
|
if (LSB(req->rid))
|
|
options |= BIT_5;
|
|
req->options = options;
|
|
|
|
ql_dbg(ql_dbg_multiq, base_vha, 0xc003,
|
|
"options=0x%x.\n", req->options);
|
|
ql_dbg(ql_dbg_init, base_vha, 0x00dd,
|
|
"options=0x%x.\n", req->options);
|
|
for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++)
|
|
req->outstanding_cmds[cnt] = NULL;
|
|
req->current_outstanding_cmd = 1;
|
|
|
|
req->ring_ptr = req->ring;
|
|
req->ring_index = 0;
|
|
req->cnt = req->length;
|
|
req->id = que_id;
|
|
reg = ISP_QUE_REG(ha, que_id);
|
|
req->req_q_in = ®->isp25mq.req_q_in;
|
|
req->req_q_out = ®->isp25mq.req_q_out;
|
|
req->max_q_depth = ha->req_q_map[0]->max_q_depth;
|
|
req->out_ptr = (void *)(req->ring + req->length);
|
|
mutex_unlock(&ha->mq_lock);
|
|
ql_dbg(ql_dbg_multiq, base_vha, 0xc004,
|
|
"ring_ptr=%p ring_index=%d, "
|
|
"cnt=%d id=%d max_q_depth=%d.\n",
|
|
req->ring_ptr, req->ring_index,
|
|
req->cnt, req->id, req->max_q_depth);
|
|
ql_dbg(ql_dbg_init, base_vha, 0x00de,
|
|
"ring_ptr=%p ring_index=%d, "
|
|
"cnt=%d id=%d max_q_depth=%d.\n",
|
|
req->ring_ptr, req->ring_index, req->cnt,
|
|
req->id, req->max_q_depth);
|
|
|
|
ret = qla25xx_init_req_que(base_vha, req);
|
|
if (ret != QLA_SUCCESS) {
|
|
ql_log(ql_log_fatal, base_vha, 0x00df,
|
|
"%s failed.\n", __func__);
|
|
mutex_lock(&ha->mq_lock);
|
|
clear_bit(que_id, ha->req_qid_map);
|
|
mutex_unlock(&ha->mq_lock);
|
|
goto que_failed;
|
|
}
|
|
|
|
return req->id;
|
|
|
|
que_failed:
|
|
qla25xx_free_req_que(base_vha, req);
|
|
failed:
|
|
return 0;
|
|
}
|
|
|
|
static void qla_do_work(struct work_struct *work)
|
|
{
|
|
unsigned long flags;
|
|
struct qla_qpair *qpair = container_of(work, struct qla_qpair, q_work);
|
|
struct scsi_qla_host *vha;
|
|
struct qla_hw_data *ha = qpair->hw;
|
|
|
|
spin_lock_irqsave(&qpair->qp_lock, flags);
|
|
vha = pci_get_drvdata(ha->pdev);
|
|
qla24xx_process_response_queue(vha, qpair->rsp);
|
|
spin_unlock_irqrestore(&qpair->qp_lock, flags);
|
|
}
|
|
|
|
/* create response queue */
|
|
int
|
|
qla25xx_create_rsp_que(struct qla_hw_data *ha, uint16_t options,
|
|
uint8_t vp_idx, uint16_t rid, struct qla_qpair *qpair)
|
|
{
|
|
int ret = 0;
|
|
struct rsp_que *rsp = NULL;
|
|
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
|
|
uint16_t que_id = 0;
|
|
device_reg_t *reg;
|
|
|
|
rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
|
|
if (rsp == NULL) {
|
|
ql_log(ql_log_warn, base_vha, 0x0066,
|
|
"Failed to allocate memory for response queue.\n");
|
|
goto failed;
|
|
}
|
|
|
|
rsp->length = RESPONSE_ENTRY_CNT_MQ;
|
|
rsp->ring = dma_alloc_coherent(&ha->pdev->dev,
|
|
(rsp->length + 1) * sizeof(response_t),
|
|
&rsp->dma, GFP_KERNEL);
|
|
if (rsp->ring == NULL) {
|
|
ql_log(ql_log_warn, base_vha, 0x00e1,
|
|
"Failed to allocate memory for response ring.\n");
|
|
goto que_failed;
|
|
}
|
|
|
|
mutex_lock(&ha->mq_lock);
|
|
que_id = find_first_zero_bit(ha->rsp_qid_map, ha->max_rsp_queues);
|
|
if (que_id >= ha->max_rsp_queues) {
|
|
mutex_unlock(&ha->mq_lock);
|
|
ql_log(ql_log_warn, base_vha, 0x00e2,
|
|
"No resources to create additional request queue.\n");
|
|
goto que_failed;
|
|
}
|
|
set_bit(que_id, ha->rsp_qid_map);
|
|
|
|
rsp->msix = qpair->msix;
|
|
|
|
ha->rsp_q_map[que_id] = rsp;
|
|
rsp->rid = rid;
|
|
rsp->vp_idx = vp_idx;
|
|
rsp->hw = ha;
|
|
ql_dbg(ql_dbg_init, base_vha, 0x00e4,
|
|
"rsp queue_id=%d rid=%d vp_idx=%d hw=%p.\n",
|
|
que_id, rsp->rid, rsp->vp_idx, rsp->hw);
|
|
/* Use alternate PCI bus number */
|
|
if (MSB(rsp->rid))
|
|
options |= BIT_4;
|
|
/* Use alternate PCI devfn */
|
|
if (LSB(rsp->rid))
|
|
options |= BIT_5;
|
|
/* Enable MSIX handshake mode on for uncapable adapters */
|
|
if (!IS_MSIX_NACK_CAPABLE(ha))
|
|
options |= BIT_6;
|
|
|
|
/* Set option to indicate response queue creation */
|
|
options |= BIT_1;
|
|
|
|
rsp->options = options;
|
|
rsp->id = que_id;
|
|
reg = ISP_QUE_REG(ha, que_id);
|
|
rsp->rsp_q_in = ®->isp25mq.rsp_q_in;
|
|
rsp->rsp_q_out = ®->isp25mq.rsp_q_out;
|
|
rsp->in_ptr = (void *)(rsp->ring + rsp->length);
|
|
mutex_unlock(&ha->mq_lock);
|
|
ql_dbg(ql_dbg_multiq, base_vha, 0xc00b,
|
|
"options=%x id=%d rsp_q_in=%p rsp_q_out=%p\n",
|
|
rsp->options, rsp->id, rsp->rsp_q_in,
|
|
rsp->rsp_q_out);
|
|
ql_dbg(ql_dbg_init, base_vha, 0x00e5,
|
|
"options=%x id=%d rsp_q_in=%p rsp_q_out=%p\n",
|
|
rsp->options, rsp->id, rsp->rsp_q_in,
|
|
rsp->rsp_q_out);
|
|
|
|
ret = qla25xx_request_irq(ha, qpair, qpair->msix,
|
|
QLA_MSIX_QPAIR_MULTIQ_RSP_Q);
|
|
if (ret)
|
|
goto que_failed;
|
|
|
|
ret = qla25xx_init_rsp_que(base_vha, rsp);
|
|
if (ret != QLA_SUCCESS) {
|
|
ql_log(ql_log_fatal, base_vha, 0x00e7,
|
|
"%s failed.\n", __func__);
|
|
mutex_lock(&ha->mq_lock);
|
|
clear_bit(que_id, ha->rsp_qid_map);
|
|
mutex_unlock(&ha->mq_lock);
|
|
goto que_failed;
|
|
}
|
|
rsp->req = NULL;
|
|
|
|
qla2x00_init_response_q_entries(rsp);
|
|
if (qpair->hw->wq)
|
|
INIT_WORK(&qpair->q_work, qla_do_work);
|
|
return rsp->id;
|
|
|
|
que_failed:
|
|
qla25xx_free_rsp_que(base_vha, rsp);
|
|
failed:
|
|
return 0;
|
|
}
|