2007-07-05 22:16:51 +02:00
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/*
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2008-04-03 22:13:13 +02:00
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* QLogic Fibre Channel HBA Driver
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* Copyright (c) 2003-2008 QLogic Corporation
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2007-07-05 22:16:51 +02:00
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*
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2008-04-03 22:13:13 +02:00
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* See LICENSE.qla2xxx for copyright and licensing details.
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2007-07-05 22:16:51 +02:00
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*/
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#include "qla_def.h"
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2008-11-06 19:40:19 +01:00
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#include "qla_gbl.h"
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2007-07-05 22:16:51 +02:00
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#include <linux/moduleparam.h>
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#include <linux/vmalloc.h>
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#include <linux/smp_lock.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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2008-11-06 19:40:19 +01:00
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if (vha->vp_idx && vha->timer_active) {
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2007-07-05 22:16:51 +02:00
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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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2008-01-17 18:02:15 +01:00
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static uint32_t
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2007-07-05 22:16:51 +02:00
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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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2008-11-06 19:40:19 +01:00
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struct qla_hw_data *ha = vha->hw;
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2007-07-05 22:16:51 +02:00
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/* Find an empty slot and assign an vp_id */
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2008-05-13 07:21:11 +02:00
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mutex_lock(&ha->vport_lock);
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2007-11-12 19:30:58 +01:00
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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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2008-05-13 07:21:11 +02:00
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mutex_unlock(&ha->vport_lock);
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2007-07-05 22:16:51 +02:00
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return vp_id;
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}
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2007-11-12 19:30:58 +01:00
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set_bit(vp_id, ha->vp_idx_map);
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2007-07-05 22:16:51 +02:00
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ha->num_vhosts++;
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2008-07-11 01:55:51 +02:00
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ha->cur_vport_count++;
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2007-07-05 22:16:51 +02:00
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vha->vp_idx = vp_id;
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2008-11-06 19:40:19 +01:00
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list_add_tail(&vha->list, &ha->vp_list);
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2008-05-13 07:21:11 +02:00
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mutex_unlock(&ha->vport_lock);
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2007-07-05 22:16:51 +02:00
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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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2008-11-06 19:40:19 +01:00
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struct qla_hw_data *ha = vha->hw;
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2007-07-05 22:16:51 +02:00
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2008-05-13 07:21:11 +02:00
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mutex_lock(&ha->vport_lock);
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2007-07-05 22:16:51 +02:00
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vp_id = vha->vp_idx;
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ha->num_vhosts--;
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2008-07-11 01:55:51 +02:00
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ha->cur_vport_count--;
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2007-11-12 19:30:58 +01:00
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clear_bit(vp_id, ha->vp_idx_map);
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2008-11-06 19:40:19 +01:00
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list_del(&vha->list);
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2008-05-13 07:21:11 +02:00
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mutex_unlock(&ha->vport_lock);
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2007-07-05 22:16:51 +02:00
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}
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2008-01-17 18:02:15 +01:00
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static scsi_qla_host_t *
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2008-11-06 19:40:19 +01:00
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qla24xx_find_vhost_by_name(struct qla_hw_data *ha, uint8_t *port_name)
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2007-07-05 22:16:51 +02:00
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{
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scsi_qla_host_t *vha;
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/* Locate matching device in database. */
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2008-11-06 19:40:19 +01:00
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list_for_each_entry(vha, &ha->vp_list, list) {
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2007-07-05 22:16:51 +02:00
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if (!memcmp(port_name, vha->port_name, WWN_SIZE))
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return vha;
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}
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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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2007-09-20 23:07:47 +02:00
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static void
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2007-07-05 22:16:51 +02:00
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qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha)
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{
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fc_port_t *fcport;
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2008-11-06 19:40:19 +01:00
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list_for_each_entry(fcport, &vha->vp_fcports, list) {
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2007-07-05 22:16:51 +02:00
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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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2008-07-24 17:31:49 +02:00
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atomic_set(&fcport->state, FCS_UNCONFIGURED);
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2007-07-05 22:16:51 +02:00
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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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2008-11-06 19:40:19 +01:00
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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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2007-07-05 22:16:51 +02:00
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/* Check if physical ha port is Up */
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2008-11-06 19:40:19 +01:00
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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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2007-07-05 22:16:51 +02:00
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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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2008-05-13 07:21:11 +02:00
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mutex_lock(&ha->vport_lock);
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2007-07-05 22:16:51 +02:00
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ret = qla24xx_modify_vp_config(vha);
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2008-05-13 07:21:11 +02:00
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mutex_unlock(&ha->vport_lock);
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2007-07-05 22:16:51 +02:00
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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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2007-09-20 23:07:47 +02:00
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static void
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2007-07-05 22:16:51 +02:00
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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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2008-11-06 19:40:19 +01:00
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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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2007-07-05 22:16:51 +02:00
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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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2008-11-06 19:40:19 +01:00
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qla2x00_alert_all_vps(struct qla_hw_data *ha, uint16_t *mb)
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2007-07-05 22:16:51 +02:00
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{
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scsi_qla_host_t *vha;
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2008-11-06 19:40:19 +01:00
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int i = 0;
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2007-07-05 22:16:51 +02:00
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2008-11-06 19:40:19 +01:00
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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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2007-07-05 22:16:51 +02:00
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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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2008-11-06 19:40:19 +01:00
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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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2007-07-05 22:16:51 +02:00
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qla2x00_async_event(vha, mb);
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break;
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}
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}
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2008-11-06 19:40:19 +01:00
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i++;
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2007-07-05 22:16:51 +02:00
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}
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}
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2008-11-06 19:40:19 +01:00
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int
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2007-07-05 22:16:51 +02:00
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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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2008-11-06 19:40:19 +01:00
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/* To exclusively reset vport, we need to log it out first.*/
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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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2007-07-05 22:16:51 +02:00
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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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2008-11-06 19:40:19 +01:00
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return qla24xx_enable_vp(vha);
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2007-07-05 22:16:51 +02:00
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}
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2008-01-17 18:02:15 +01:00
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static int
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2007-07-05 22:16:51 +02:00
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qla2x00_do_dpc_vp(scsi_qla_host_t *vha)
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{
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2008-11-06 19:40:19 +01:00
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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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2008-04-03 22:13:31 +02:00
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2007-07-05 22:16:51 +02:00
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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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2008-11-06 19:40:19 +01:00
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if (atomic_read(&base_vha->loop_state) == LOOP_READY) {
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2008-04-03 22:13:31 +02:00
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qla24xx_configure_vp(vha);
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} else {
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set_bit(VP_IDX_ACQUIRED, &vha->vp_flags);
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2008-11-06 19:40:19 +01:00
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set_bit(VP_DPC_NEEDED, &base_vha->dpc_flags);
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2008-04-03 22:13:31 +02:00
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}
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2007-07-05 22:16:51 +02:00
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return 0;
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}
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2008-11-06 19:40:19 +01:00
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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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2007-07-05 22:16:51 +02:00
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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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2008-07-11 01:55:58 +02:00
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if (atomic_read(&vha->vp_state) == VP_ACTIVE &&
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test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
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2007-07-05 22:16:51 +02:00
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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);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
2008-11-06 19:40:19 +01:00
|
|
|
qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha)
|
2007-07-05 22:16:51 +02:00
|
|
|
{
|
|
|
|
int ret;
|
2008-11-06 19:40:19 +01:00
|
|
|
struct qla_hw_data *ha = vha->hw;
|
|
|
|
scsi_qla_host_t *vp;
|
2007-07-05 22:16:51 +02:00
|
|
|
|
2008-11-06 19:40:19 +01:00
|
|
|
if (vha->vp_idx)
|
2007-07-05 22:16:51 +02:00
|
|
|
return;
|
|
|
|
if (list_empty(&ha->vp_list))
|
|
|
|
return;
|
|
|
|
|
2008-11-06 19:40:19 +01:00
|
|
|
clear_bit(VP_DPC_NEEDED, &vha->dpc_flags);
|
2007-07-05 22:16:51 +02:00
|
|
|
|
2008-11-06 19:40:19 +01:00
|
|
|
list_for_each_entry(vp, &ha->vp_list, list) {
|
|
|
|
if (vp->vp_idx)
|
|
|
|
ret = qla2x00_do_dpc_vp(vp);
|
2007-07-05 22:16:51 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport)
|
|
|
|
{
|
2008-11-06 19:40:19 +01:00
|
|
|
scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
|
|
|
|
struct qla_hw_data *ha = base_vha->hw;
|
2007-07-05 22:16:51 +02:00
|
|
|
scsi_qla_host_t *vha;
|
|
|
|
uint8_t port_name[WWN_SIZE];
|
|
|
|
|
|
|
|
if (fc_vport->roles != FC_PORT_ROLE_FCP_INITIATOR)
|
|
|
|
return VPCERR_UNSUPPORTED;
|
|
|
|
|
|
|
|
/* Check up the F/W and H/W support NPIV */
|
|
|
|
if (!ha->flags.npiv_supported)
|
|
|
|
return VPCERR_UNSUPPORTED;
|
|
|
|
|
|
|
|
/* Check up whether npiv supported switch presented */
|
|
|
|
if (!(ha->switch_cap & FLOGI_MID_SUPPORT))
|
|
|
|
return VPCERR_NO_FABRIC_SUPP;
|
|
|
|
|
|
|
|
/* Check up unique WWPN */
|
|
|
|
u64_to_wwn(fc_vport->port_name, port_name);
|
2008-11-06 19:40:19 +01:00
|
|
|
if (!memcmp(port_name, base_vha->port_name, WWN_SIZE))
|
2008-01-17 18:02:14 +01:00
|
|
|
return VPCERR_BAD_WWN;
|
2007-07-05 22:16:51 +02:00
|
|
|
vha = qla24xx_find_vhost_by_name(ha, port_name);
|
|
|
|
if (vha)
|
|
|
|
return VPCERR_BAD_WWN;
|
|
|
|
|
|
|
|
/* Check up max-npiv-supports */
|
|
|
|
if (ha->num_vhosts > ha->max_npiv_vports) {
|
2007-11-12 19:30:58 +01:00
|
|
|
DEBUG15(printk("scsi(%ld): num_vhosts %ud is bigger than "
|
2008-11-06 19:40:19 +01:00
|
|
|
"max_npv_vports %ud.\n", base_vha->host_no,
|
2007-11-12 19:30:58 +01:00
|
|
|
ha->num_vhosts, ha->max_npiv_vports));
|
2007-07-05 22:16:51 +02:00
|
|
|
return VPCERR_UNSUPPORTED;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
scsi_qla_host_t *
|
|
|
|
qla24xx_create_vhost(struct fc_vport *fc_vport)
|
|
|
|
{
|
2008-11-06 19:40:19 +01:00
|
|
|
scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
|
|
|
|
struct qla_hw_data *ha = base_vha->hw;
|
2007-07-05 22:16:51 +02:00
|
|
|
scsi_qla_host_t *vha;
|
2008-11-06 19:40:19 +01:00
|
|
|
struct scsi_host_template *sht = &qla24xx_driver_template;
|
2007-07-05 22:16:51 +02:00
|
|
|
struct Scsi_Host *host;
|
|
|
|
|
2008-11-06 19:40:19 +01:00
|
|
|
vha = qla2x00_create_host(sht, ha);
|
|
|
|
if (!vha) {
|
|
|
|
DEBUG(printk("qla2xxx: scsi_host_alloc() failed for vport\n"));
|
2007-07-05 22:16:51 +02:00
|
|
|
return(NULL);
|
|
|
|
}
|
|
|
|
|
2008-11-06 19:40:19 +01:00
|
|
|
host = vha->host;
|
2007-07-05 22:16:51 +02:00
|
|
|
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) {
|
|
|
|
DEBUG15(printk("scsi(%ld): Couldn't allocate vp_id.\n",
|
|
|
|
vha->host_no));
|
2008-11-06 19:40:19 +01:00
|
|
|
goto create_vhost_failed;
|
2007-07-05 22:16:51 +02:00
|
|
|
}
|
|
|
|
vha->mgmt_svr_loop_id = 10 + vha->vp_idx;
|
|
|
|
|
|
|
|
vha->dpc_flags = 0L;
|
|
|
|
set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
|
|
|
|
set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 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);
|
|
|
|
|
2008-11-06 19:40:19 +01:00
|
|
|
host->can_queue = ha->req->length + 128;
|
2007-07-05 22:16:51 +02:00
|
|
|
host->this_id = 255;
|
|
|
|
host->cmd_per_lun = 3;
|
|
|
|
host->max_cmd_len = MAX_CMDSZ;
|
|
|
|
host->max_channel = MAX_BUSES - 1;
|
|
|
|
host->max_lun = MAX_LUNS;
|
2008-07-11 01:55:51 +02:00
|
|
|
host->unique_id = host->host_no;
|
2007-07-05 22:16:51 +02:00
|
|
|
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;
|
|
|
|
|
|
|
|
return vha;
|
|
|
|
|
2008-11-06 19:40:19 +01:00
|
|
|
create_vhost_failed:
|
2007-07-05 22:16:51 +02:00
|
|
|
return NULL;
|
|
|
|
}
|