82515920b6
The 'max_lun' value registered for each scsi_host is currently capped at 0xffff. The new module parameter can allow for 2nd-level flat-space addressing method-infrastructure to be supported. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com> Signed-off-by: James Bottomley <jbottomley@parallels.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
780 lines
19 KiB
C
780 lines
19 KiB
C
/*
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* QLogic Fibre Channel HBA Driver
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* Copyright (c) 2003-2011 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 <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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DEBUG15(printk ("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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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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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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DEBUG15(printk("scsi(%ld): Marking port dead, "
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"loop_id=0x%04x :%x\n",
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vha->host_no, fcport->loop_id, fcport->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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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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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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DEBUG15(qla_printk(KERN_INFO, ha,
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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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DEBUG15(qla_printk(KERN_INFO, ha,
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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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DEBUG15(printk("scsi(%ld): %s: change request #3 for this host.\n",
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vha->host_no, __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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DEBUG15(qla_printk(KERN_ERR, vha->hw, "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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DEBUG15(printk("scsi(%ld)%s: Async_event for"
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" VP[%d], mb = 0x%x, vha=%p\n",
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vha->host_no, __func__, 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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DEBUG15(printk("scsi(%ld): Scheduling enable of Vport %d...\n",
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vha->host_no, 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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qla2x00_do_work(vha);
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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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qla24xx_configure_vp(vha);
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return 0;
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}
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if (test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) {
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qla2x00_update_fcports(vha);
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clear_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags);
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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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DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
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vha->host_no));
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qla2x00_relogin(vha);
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DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
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vha->host_no));
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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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qla2x00_loop_resync(vha);
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clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags);
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}
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}
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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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int ret;
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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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ret = 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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DEBUG15(printk("scsi(%ld): num_vhosts %ud is bigger than "
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"max_npv_vports %ud.\n", base_vha->host_no,
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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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DEBUG(printk("qla2xxx: scsi_host_alloc() failed for vport\n"));
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return(NULL);
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}
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host = vha->host;
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fc_vport->dd_data = vha;
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/* New host info */
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u64_to_wwn(fc_vport->node_name, vha->node_name);
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u64_to_wwn(fc_vport->port_name, vha->port_name);
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vha->fc_vport = fc_vport;
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vha->device_flags = 0;
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vha->vp_idx = qla24xx_allocate_vp_id(vha);
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if (vha->vp_idx > ha->max_npiv_vports) {
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DEBUG15(printk("scsi(%ld): Couldn't allocate vp_id.\n",
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vha->host_no));
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goto create_vhost_failed;
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}
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vha->mgmt_svr_loop_id = 10 + vha->vp_idx;
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vha->dpc_flags = 0L;
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/*
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* To fix the issue of processing a parent's RSCN for the vport before
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* its SCR is complete.
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*/
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set_bit(VP_SCR_NEEDED, &vha->vp_flags);
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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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qla2x00_start_timer(vha, qla2x00_timer, WATCH_INTERVAL);
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vha->req = base_vha->req;
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host->can_queue = base_vha->req->length + 128;
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host->this_id = 255;
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host->cmd_per_lun = 3;
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if ((IS_QLA25XX(ha) || IS_QLA81XX(ha)) && ql2xenabledif)
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host->max_cmd_len = 32;
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else
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host->max_cmd_len = MAX_CMDSZ;
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host->max_channel = MAX_BUSES - 1;
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host->max_lun = ql2xmaxlun;
|
|
host->unique_id = host->host_no;
|
|
host->max_id = MAX_TARGETS_2200;
|
|
host->transportt = qla2xxx_transport_vport_template;
|
|
|
|
DEBUG15(printk("DEBUG: 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);
|
|
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);
|
|
rsp->msix->have_irq = 0;
|
|
rsp->msix->rsp = 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;
|
|
}
|
|
|
|
static 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;
|
|
|
|
/* Delete request queues */
|
|
for (cnt = 1; cnt < ha->max_req_queues; cnt++) {
|
|
req = ha->req_q_map[cnt];
|
|
if (req) {
|
|
ret = qla25xx_delete_req_que(vha, req);
|
|
if (ret != QLA_SUCCESS) {
|
|
qla_printk(KERN_WARNING, ha,
|
|
"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) {
|
|
ret = qla25xx_delete_rsp_que(vha, rsp);
|
|
if (ret != QLA_SUCCESS) {
|
|
qla_printk(KERN_WARNING, ha,
|
|
"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 __iomem *reg;
|
|
uint32_t cnt;
|
|
|
|
req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
|
|
if (req == NULL) {
|
|
qla_printk(KERN_WARNING, ha, "could not allocate memory"
|
|
"for request que\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) {
|
|
qla_printk(KERN_WARNING, ha,
|
|
"Memory Allocation failed - request_ring\n");
|
|
goto que_failed;
|
|
}
|
|
|
|
mutex_lock(&ha->vport_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->vport_lock);
|
|
qla_printk(KERN_INFO, ha, "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;
|
|
|
|
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;
|
|
|
|
for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; 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->max_q_depth = ha->req_q_map[0]->max_q_depth;
|
|
mutex_unlock(&ha->vport_lock);
|
|
|
|
ret = qla25xx_init_req_que(base_vha, req);
|
|
if (ret != QLA_SUCCESS) {
|
|
qla_printk(KERN_WARNING, ha, "%s failed\n", __func__);
|
|
mutex_lock(&ha->vport_lock);
|
|
clear_bit(que_id, ha->req_qid_map);
|
|
mutex_unlock(&ha->vport_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 rsp_que *rsp = container_of(work, struct rsp_que, q_work);
|
|
struct scsi_qla_host *vha;
|
|
struct qla_hw_data *ha = rsp->hw;
|
|
|
|
spin_lock_irqsave(&rsp->hw->hardware_lock, flags);
|
|
vha = pci_get_drvdata(ha->pdev);
|
|
qla24xx_process_response_queue(vha, rsp);
|
|
spin_unlock_irqrestore(&rsp->hw->hardware_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, int req)
|
|
{
|
|
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 __iomem *reg;
|
|
|
|
rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
|
|
if (rsp == NULL) {
|
|
qla_printk(KERN_WARNING, ha, "could not allocate memory for"
|
|
" response que\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) {
|
|
qla_printk(KERN_WARNING, ha,
|
|
"Memory Allocation failed - response_ring\n");
|
|
goto que_failed;
|
|
}
|
|
|
|
mutex_lock(&ha->vport_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->vport_lock);
|
|
qla_printk(KERN_INFO, ha, "No resources to create "
|
|
"additional response queue\n");
|
|
goto que_failed;
|
|
}
|
|
set_bit(que_id, ha->rsp_qid_map);
|
|
|
|
if (ha->flags.msix_enabled)
|
|
rsp->msix = &ha->msix_entries[que_id + 1];
|
|
else
|
|
qla_printk(KERN_WARNING, ha, "msix not enabled\n");
|
|
|
|
ha->rsp_q_map[que_id] = rsp;
|
|
rsp->rid = rid;
|
|
rsp->vp_idx = vp_idx;
|
|
rsp->hw = ha;
|
|
/* 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;
|
|
|
|
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;
|
|
mutex_unlock(&ha->vport_lock);
|
|
|
|
ret = qla25xx_request_irq(rsp);
|
|
if (ret)
|
|
goto que_failed;
|
|
|
|
ret = qla25xx_init_rsp_que(base_vha, rsp);
|
|
if (ret != QLA_SUCCESS) {
|
|
qla_printk(KERN_WARNING, ha, "%s failed\n", __func__);
|
|
mutex_lock(&ha->vport_lock);
|
|
clear_bit(que_id, ha->rsp_qid_map);
|
|
mutex_unlock(&ha->vport_lock);
|
|
goto que_failed;
|
|
}
|
|
if (req >= 0)
|
|
rsp->req = ha->req_q_map[req];
|
|
else
|
|
rsp->req = NULL;
|
|
|
|
qla2x00_init_response_q_entries(rsp);
|
|
if (rsp->hw->wq)
|
|
INIT_WORK(&rsp->q_work, qla_do_work);
|
|
return rsp->id;
|
|
|
|
que_failed:
|
|
qla25xx_free_rsp_que(base_vha, rsp);
|
|
failed:
|
|
return 0;
|
|
}
|