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421c20b766
Make it explicit that the SCSI host template is not modified. Signed-off-by: Bart Van Assche <bvanassche@acm.org> Link: https://lore.kernel.org/r/20230322195515.1267197-68-bvanassche@acm.org Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
1293 lines
33 KiB
C
1293 lines
33 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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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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#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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spin_unlock_irqrestore(&ha->vport_slock, flags);
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spin_lock_irqsave(&ha->hardware_lock, flags);
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qla_update_vp_map(vha, SET_VP_IDX);
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spin_unlock_irqrestore(&ha->hardware_lock, 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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u32 i, bailout;
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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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bailout = 0;
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for (i = 0; i < 500; i++) {
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spin_lock_irqsave(&ha->vport_slock, flags);
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if (atomic_read(&vha->vref_count) == 0) {
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list_del(&vha->list);
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qla_update_vp_map(vha, RESET_VP_IDX);
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bailout = 1;
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}
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spin_unlock_irqrestore(&ha->vport_slock, flags);
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if (bailout)
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break;
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else
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msleep(20);
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}
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if (!bailout) {
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ql_log(ql_log_info, vha, 0xfffa,
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"vha->vref_count=%u timeout\n", vha->vref_count.counter);
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spin_lock_irqsave(&ha->vport_slock, flags);
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list_del(&vha->list);
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qla_update_vp_map(vha, RESET_VP_IDX);
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spin_unlock_irqrestore(&ha->vport_slock, flags);
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}
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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);
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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 = QLA_SUCCESS;
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fc_port_t *fcport;
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if (vha->hw->flags.edif_enabled) {
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if (DBELL_ACTIVE(vha))
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qla2x00_post_aen_work(vha, FCH_EVT_VENDOR_UNIQUE,
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FCH_EVT_VENDOR_UNIQUE_VPORT_DOWN);
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/* delete sessions and flush sa_indexes */
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qla2x00_wait_for_sess_deletion(vha);
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}
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if (vha->hw->flags.fw_started)
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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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list_for_each_entry(fcport, &vha->vp_fcports, list)
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fcport->logout_on_delete = 0;
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if (!vha->hw->flags.edif_enabled)
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qla2x00_wait_for_sess_deletion(vha);
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/* Remove port id from vp target map */
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spin_lock_irqsave(&vha->hw->hardware_lock, flags);
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qla_update_vp_map(vha, RESET_AL_PA);
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spin_unlock_irqrestore(&vha->hw->hardware_lock, 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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ql_dbg(ql_dbg_taskm, vha, 0x800b,
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"%s skip enable. loop_state %x topo %x\n",
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__func__, base_vha->loop_state.counter,
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ha->current_topology);
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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, *tvp;
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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_safe(vha, tvp, &ha->vp_list, list) {
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if (vha->vp_idx) {
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if (test_bit(VPORT_DELETE, &vha->dpc_flags))
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continue;
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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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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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case MBA_PORT_UPDATE:
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case MBA_RSCN_UPDATE:
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if ((mb[3] & 0xff) == vha->vp_idx) {
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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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}
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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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wake_up(&vha->vref_waitq);
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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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fc_port_t *fcport;
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/*
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* To exclusively reset vport, we need to log it out first.
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* Note: This control_vp can fail if ISP reset is already
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* issued, this is expected, as the vp would be already
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* 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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list_for_each_entry(fcport, &vha->vp_fcports, list)
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fcport->logout_on_delete = 0;
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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);
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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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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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/* 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(PROCESS_PUREX_IOCB, &vha->dpc_flags)) {
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if (atomic_read(&vha->loop_state) == LOOP_READY) {
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qla24xx_process_purex_list(&vha->purex_list);
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clear_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags);
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}
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}
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if (test_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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if (!vha->relogin_jif ||
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time_after_eq(jiffies, vha->relogin_jif)) {
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vha->relogin_jif = jiffies + HZ;
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clear_bit(RELOGIN_NEEDED, &vha->dpc_flags);
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ql_dbg(ql_dbg_dpc, vha, 0x4018,
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"Relogin needed scheduled.\n");
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qla24xx_post_relogin_work(vha);
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}
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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, *tvp;
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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_safe(vp, tvp, &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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}
|
|
|
|
int
|
|
qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport)
|
|
{
|
|
scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
|
|
struct qla_hw_data *ha = base_vha->hw;
|
|
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);
|
|
if (!memcmp(port_name, base_vha->port_name, WWN_SIZE))
|
|
return VPCERR_BAD_WWN;
|
|
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) {
|
|
ql_dbg(ql_dbg_vport, vha, 0xa004,
|
|
"num_vhosts %ud is bigger "
|
|
"than max_npiv_vports %ud.\n",
|
|
ha->num_vhosts, ha->max_npiv_vports);
|
|
return VPCERR_UNSUPPORTED;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
scsi_qla_host_t *
|
|
qla24xx_create_vhost(struct fc_vport *fc_vport)
|
|
{
|
|
scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
|
|
struct qla_hw_data *ha = base_vha->hw;
|
|
scsi_qla_host_t *vha;
|
|
const struct scsi_host_template *sht = &qla2xxx_driver_template;
|
|
struct Scsi_Host *host;
|
|
|
|
vha = qla2x00_create_host(sht, ha);
|
|
if (!vha) {
|
|
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 = qla2x00_reserve_mgmt_server_loop_id(vha);
|
|
|
|
vha->dpc_flags = 0L;
|
|
ha->dpc_active = 0;
|
|
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, WATCH_INTERVAL);
|
|
|
|
vha->req = base_vha->req;
|
|
vha->flags.nvme_enabled = base_vha->flags.nvme_enabled;
|
|
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);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
int
|
|
qla25xx_delete_req_que(struct scsi_qla_host *vha, struct req_que *req)
|
|
{
|
|
int ret = QLA_SUCCESS;
|
|
|
|
if (req && vha->flags.qpairs_req_created) {
|
|
req->options |= BIT_0;
|
|
ret = qla25xx_init_req_que(vha, req);
|
|
if (ret != QLA_SUCCESS)
|
|
return QLA_FUNCTION_FAILED;
|
|
|
|
qla25xx_free_req_que(vha, req);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
qla25xx_delete_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
|
|
{
|
|
int ret = QLA_SUCCESS;
|
|
|
|
if (rsp && vha->flags.qpairs_rsp_created) {
|
|
rsp->options |= BIT_0;
|
|
ret = qla25xx_init_rsp_que(vha, rsp);
|
|
if (ret != QLA_SUCCESS)
|
|
return QLA_FUNCTION_FAILED;
|
|
|
|
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 || ql2xnvmeenable) {
|
|
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, bool startqp)
|
|
{
|
|
int ret = 0;
|
|
struct req_que *req = NULL;
|
|
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
|
|
struct scsi_qla_host *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 = (uint16_t *)(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);
|
|
|
|
if (startqp) {
|
|
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;
|
|
}
|
|
vha->flags.qpairs_req_created = 1;
|
|
}
|
|
|
|
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 = qpair->vha;
|
|
|
|
spin_lock_irqsave(&qpair->qp_lock, flags);
|
|
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, bool startqp)
|
|
{
|
|
int ret = 0;
|
|
struct rsp_que *rsp = NULL;
|
|
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
|
|
struct scsi_qla_host *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 = (uint16_t *)(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,
|
|
ha->flags.disable_msix_handshake ?
|
|
QLA_MSIX_QPAIR_MULTIQ_RSP_Q : QLA_MSIX_QPAIR_MULTIQ_RSP_Q_HS);
|
|
if (ret)
|
|
goto que_failed;
|
|
|
|
if (startqp) {
|
|
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;
|
|
}
|
|
vha->flags.qpairs_rsp_created = 1;
|
|
}
|
|
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;
|
|
}
|
|
|
|
static void qla_ctrlvp_sp_done(srb_t *sp, int res)
|
|
{
|
|
if (sp->comp)
|
|
complete(sp->comp);
|
|
/* don't free sp here. Let the caller do the free */
|
|
}
|
|
|
|
/**
|
|
* qla24xx_control_vp() - Enable a virtual port for given host
|
|
* @vha: adapter block pointer
|
|
* @cmd: command type to be sent for enable virtual port
|
|
*
|
|
* Return: qla2xxx local function return status code.
|
|
*/
|
|
int qla24xx_control_vp(scsi_qla_host_t *vha, int cmd)
|
|
{
|
|
int rval = QLA_MEMORY_ALLOC_FAILED;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
int vp_index = vha->vp_idx;
|
|
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
|
|
DECLARE_COMPLETION_ONSTACK(comp);
|
|
srb_t *sp;
|
|
|
|
ql_dbg(ql_dbg_vport, vha, 0x10c1,
|
|
"Entered %s cmd %x index %d.\n", __func__, cmd, vp_index);
|
|
|
|
if (vp_index == 0 || vp_index >= ha->max_npiv_vports)
|
|
return QLA_PARAMETER_ERROR;
|
|
|
|
/* ref: INIT */
|
|
sp = qla2x00_get_sp(base_vha, NULL, GFP_KERNEL);
|
|
if (!sp)
|
|
return rval;
|
|
|
|
sp->type = SRB_CTRL_VP;
|
|
sp->name = "ctrl_vp";
|
|
sp->comp = ∁
|
|
qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
|
|
qla_ctrlvp_sp_done);
|
|
sp->u.iocb_cmd.u.ctrlvp.cmd = cmd;
|
|
sp->u.iocb_cmd.u.ctrlvp.vp_index = vp_index;
|
|
|
|
rval = qla2x00_start_sp(sp);
|
|
if (rval != QLA_SUCCESS) {
|
|
ql_dbg(ql_dbg_async, vha, 0xffff,
|
|
"%s: %s Failed submission. %x.\n",
|
|
__func__, sp->name, rval);
|
|
goto done;
|
|
}
|
|
|
|
ql_dbg(ql_dbg_vport, vha, 0x113f, "%s hndl %x submitted\n",
|
|
sp->name, sp->handle);
|
|
|
|
wait_for_completion(&comp);
|
|
sp->comp = NULL;
|
|
|
|
rval = sp->rc;
|
|
switch (rval) {
|
|
case QLA_FUNCTION_TIMEOUT:
|
|
ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s Timeout. %x.\n",
|
|
__func__, sp->name, rval);
|
|
break;
|
|
case QLA_SUCCESS:
|
|
ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s done.\n",
|
|
__func__, sp->name);
|
|
break;
|
|
default:
|
|
ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s Failed. %x.\n",
|
|
__func__, sp->name, rval);
|
|
break;
|
|
}
|
|
done:
|
|
/* ref: INIT */
|
|
kref_put(&sp->cmd_kref, qla2x00_sp_release);
|
|
return rval;
|
|
}
|
|
|
|
struct scsi_qla_host *qla_find_host_by_vp_idx(struct scsi_qla_host *vha, uint16_t vp_idx)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
|
|
if (vha->vp_idx == vp_idx)
|
|
return vha;
|
|
|
|
BUG_ON(ha->vp_map == NULL);
|
|
if (likely(test_bit(vp_idx, ha->vp_idx_map)))
|
|
return ha->vp_map[vp_idx].vha;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/* vport_slock to be held by the caller */
|
|
void
|
|
qla_update_vp_map(struct scsi_qla_host *vha, int cmd)
|
|
{
|
|
void *slot;
|
|
u32 key;
|
|
int rc;
|
|
|
|
if (!vha->hw->vp_map)
|
|
return;
|
|
|
|
key = vha->d_id.b24;
|
|
|
|
switch (cmd) {
|
|
case SET_VP_IDX:
|
|
vha->hw->vp_map[vha->vp_idx].vha = vha;
|
|
break;
|
|
case SET_AL_PA:
|
|
slot = btree_lookup32(&vha->hw->host_map, key);
|
|
if (!slot) {
|
|
ql_dbg(ql_dbg_disc, vha, 0xf018,
|
|
"Save vha in host_map %p %06x\n", vha, key);
|
|
rc = btree_insert32(&vha->hw->host_map,
|
|
key, vha, GFP_ATOMIC);
|
|
if (rc)
|
|
ql_log(ql_log_info, vha, 0xd03e,
|
|
"Unable to insert s_id into host_map: %06x\n",
|
|
key);
|
|
return;
|
|
}
|
|
ql_dbg(ql_dbg_disc, vha, 0xf019,
|
|
"replace existing vha in host_map %p %06x\n", vha, key);
|
|
btree_update32(&vha->hw->host_map, key, vha);
|
|
break;
|
|
case RESET_VP_IDX:
|
|
vha->hw->vp_map[vha->vp_idx].vha = NULL;
|
|
break;
|
|
case RESET_AL_PA:
|
|
ql_dbg(ql_dbg_disc, vha, 0xf01a,
|
|
"clear vha in host_map %p %06x\n", vha, key);
|
|
slot = btree_lookup32(&vha->hw->host_map, key);
|
|
if (slot)
|
|
btree_remove32(&vha->hw->host_map, key);
|
|
vha->d_id.b24 = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
void qla_update_host_map(struct scsi_qla_host *vha, port_id_t id)
|
|
{
|
|
|
|
if (!vha->d_id.b24) {
|
|
vha->d_id = id;
|
|
qla_update_vp_map(vha, SET_AL_PA);
|
|
} else if (vha->d_id.b24 != id.b24) {
|
|
qla_update_vp_map(vha, RESET_AL_PA);
|
|
vha->d_id = id;
|
|
qla_update_vp_map(vha, SET_AL_PA);
|
|
}
|
|
}
|
|
|
|
int qla_create_buf_pool(struct scsi_qla_host *vha, struct qla_qpair *qp)
|
|
{
|
|
int sz;
|
|
|
|
qp->buf_pool.num_bufs = qp->req->length;
|
|
|
|
sz = BITS_TO_LONGS(qp->req->length);
|
|
qp->buf_pool.buf_map = kcalloc(sz, sizeof(long), GFP_KERNEL);
|
|
if (!qp->buf_pool.buf_map) {
|
|
ql_log(ql_log_warn, vha, 0x0186,
|
|
"Failed to allocate buf_map(%zd).\n", sz * sizeof(unsigned long));
|
|
return -ENOMEM;
|
|
}
|
|
sz = qp->req->length * sizeof(void *);
|
|
qp->buf_pool.buf_array = kcalloc(qp->req->length, sizeof(void *), GFP_KERNEL);
|
|
if (!qp->buf_pool.buf_array) {
|
|
ql_log(ql_log_warn, vha, 0x0186,
|
|
"Failed to allocate buf_array(%d).\n", sz);
|
|
kfree(qp->buf_pool.buf_map);
|
|
return -ENOMEM;
|
|
}
|
|
sz = qp->req->length * sizeof(dma_addr_t);
|
|
qp->buf_pool.dma_array = kcalloc(qp->req->length, sizeof(dma_addr_t), GFP_KERNEL);
|
|
if (!qp->buf_pool.dma_array) {
|
|
ql_log(ql_log_warn, vha, 0x0186,
|
|
"Failed to allocate dma_array(%d).\n", sz);
|
|
kfree(qp->buf_pool.buf_map);
|
|
kfree(qp->buf_pool.buf_array);
|
|
return -ENOMEM;
|
|
}
|
|
set_bit(0, qp->buf_pool.buf_map);
|
|
return 0;
|
|
}
|
|
|
|
void qla_free_buf_pool(struct qla_qpair *qp)
|
|
{
|
|
int i;
|
|
struct qla_hw_data *ha = qp->vha->hw;
|
|
|
|
for (i = 0; i < qp->buf_pool.num_bufs; i++) {
|
|
if (qp->buf_pool.buf_array[i] && qp->buf_pool.dma_array[i])
|
|
dma_pool_free(ha->fcp_cmnd_dma_pool, qp->buf_pool.buf_array[i],
|
|
qp->buf_pool.dma_array[i]);
|
|
qp->buf_pool.buf_array[i] = NULL;
|
|
qp->buf_pool.dma_array[i] = 0;
|
|
}
|
|
|
|
kfree(qp->buf_pool.dma_array);
|
|
kfree(qp->buf_pool.buf_array);
|
|
kfree(qp->buf_pool.buf_map);
|
|
}
|
|
|
|
/* it is assume qp->qp_lock is held at this point */
|
|
int qla_get_buf(struct scsi_qla_host *vha, struct qla_qpair *qp, struct qla_buf_dsc *dsc)
|
|
{
|
|
u16 tag, i = 0;
|
|
void *buf;
|
|
dma_addr_t buf_dma;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
|
|
dsc->tag = TAG_FREED;
|
|
again:
|
|
tag = find_first_zero_bit(qp->buf_pool.buf_map, qp->buf_pool.num_bufs);
|
|
if (tag >= qp->buf_pool.num_bufs) {
|
|
ql_dbg(ql_dbg_io, vha, 0x00e2,
|
|
"qp(%d) ran out of buf resource.\n", qp->id);
|
|
return -EIO;
|
|
}
|
|
if (tag == 0) {
|
|
set_bit(0, qp->buf_pool.buf_map);
|
|
i++;
|
|
if (i == 5) {
|
|
ql_dbg(ql_dbg_io, vha, 0x00e3,
|
|
"qp(%d) unable to get tag.\n", qp->id);
|
|
return -EIO;
|
|
}
|
|
goto again;
|
|
}
|
|
|
|
if (!qp->buf_pool.buf_array[tag]) {
|
|
buf = dma_pool_zalloc(ha->fcp_cmnd_dma_pool, GFP_ATOMIC, &buf_dma);
|
|
if (!buf) {
|
|
ql_log(ql_log_fatal, vha, 0x13b1,
|
|
"Failed to allocate buf.\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
dsc->buf = qp->buf_pool.buf_array[tag] = buf;
|
|
dsc->buf_dma = qp->buf_pool.dma_array[tag] = buf_dma;
|
|
qp->buf_pool.num_alloc++;
|
|
} else {
|
|
dsc->buf = qp->buf_pool.buf_array[tag];
|
|
dsc->buf_dma = qp->buf_pool.dma_array[tag];
|
|
memset(dsc->buf, 0, FCP_CMND_DMA_POOL_SIZE);
|
|
}
|
|
|
|
qp->buf_pool.num_active++;
|
|
if (qp->buf_pool.num_active > qp->buf_pool.max_used)
|
|
qp->buf_pool.max_used = qp->buf_pool.num_active;
|
|
|
|
dsc->tag = tag;
|
|
set_bit(tag, qp->buf_pool.buf_map);
|
|
return 0;
|
|
}
|
|
|
|
static void qla_trim_buf(struct qla_qpair *qp, u16 trim)
|
|
{
|
|
int i, j;
|
|
struct qla_hw_data *ha = qp->vha->hw;
|
|
|
|
if (!trim)
|
|
return;
|
|
|
|
for (i = 0; i < trim; i++) {
|
|
j = qp->buf_pool.num_alloc - 1;
|
|
if (test_bit(j, qp->buf_pool.buf_map)) {
|
|
ql_dbg(ql_dbg_io + ql_dbg_verbose, qp->vha, 0x300b,
|
|
"QP id(%d): trim active buf[%d]. Remain %d bufs\n",
|
|
qp->id, j, qp->buf_pool.num_alloc);
|
|
return;
|
|
}
|
|
|
|
if (qp->buf_pool.buf_array[j]) {
|
|
dma_pool_free(ha->fcp_cmnd_dma_pool, qp->buf_pool.buf_array[j],
|
|
qp->buf_pool.dma_array[j]);
|
|
qp->buf_pool.buf_array[j] = NULL;
|
|
qp->buf_pool.dma_array[j] = 0;
|
|
}
|
|
qp->buf_pool.num_alloc--;
|
|
if (!qp->buf_pool.num_alloc)
|
|
break;
|
|
}
|
|
ql_dbg(ql_dbg_io + ql_dbg_verbose, qp->vha, 0x3010,
|
|
"QP id(%d): trimmed %d bufs. Remain %d bufs\n",
|
|
qp->id, trim, qp->buf_pool.num_alloc);
|
|
}
|
|
|
|
static void __qla_adjust_buf(struct qla_qpair *qp)
|
|
{
|
|
u32 trim;
|
|
|
|
qp->buf_pool.take_snapshot = 0;
|
|
qp->buf_pool.prev_max = qp->buf_pool.max_used;
|
|
qp->buf_pool.max_used = qp->buf_pool.num_active;
|
|
|
|
if (qp->buf_pool.prev_max > qp->buf_pool.max_used &&
|
|
qp->buf_pool.num_alloc > qp->buf_pool.max_used) {
|
|
/* down trend */
|
|
trim = qp->buf_pool.num_alloc - qp->buf_pool.max_used;
|
|
trim = (trim * 10) / 100;
|
|
trim = trim ? trim : 1;
|
|
qla_trim_buf(qp, trim);
|
|
} else if (!qp->buf_pool.prev_max && !qp->buf_pool.max_used) {
|
|
/* 2 periods of no io */
|
|
qla_trim_buf(qp, qp->buf_pool.num_alloc);
|
|
}
|
|
}
|
|
|
|
/* it is assume qp->qp_lock is held at this point */
|
|
void qla_put_buf(struct qla_qpair *qp, struct qla_buf_dsc *dsc)
|
|
{
|
|
if (dsc->tag == TAG_FREED)
|
|
return;
|
|
lockdep_assert_held(qp->qp_lock_ptr);
|
|
|
|
clear_bit(dsc->tag, qp->buf_pool.buf_map);
|
|
qp->buf_pool.num_active--;
|
|
dsc->tag = TAG_FREED;
|
|
|
|
if (qp->buf_pool.take_snapshot)
|
|
__qla_adjust_buf(qp);
|
|
}
|
|
|
|
#define EXPIRE (60 * HZ)
|
|
void qla_adjust_buf(struct scsi_qla_host *vha)
|
|
{
|
|
unsigned long flags;
|
|
int i;
|
|
struct qla_qpair *qp;
|
|
|
|
if (vha->vp_idx)
|
|
return;
|
|
|
|
if (!vha->buf_expired) {
|
|
vha->buf_expired = jiffies + EXPIRE;
|
|
return;
|
|
}
|
|
if (time_before(jiffies, vha->buf_expired))
|
|
return;
|
|
|
|
vha->buf_expired = jiffies + EXPIRE;
|
|
|
|
for (i = 0; i < vha->hw->num_qpairs; i++) {
|
|
qp = vha->hw->queue_pair_map[i];
|
|
if (!qp)
|
|
continue;
|
|
if (!qp->buf_pool.num_alloc)
|
|
continue;
|
|
|
|
if (qp->buf_pool.take_snapshot) {
|
|
/* no io has gone through in the last EXPIRE period */
|
|
spin_lock_irqsave(qp->qp_lock_ptr, flags);
|
|
__qla_adjust_buf(qp);
|
|
spin_unlock_irqrestore(qp->qp_lock_ptr, flags);
|
|
} else {
|
|
qp->buf_pool.take_snapshot = 1;
|
|
}
|
|
}
|
|
}
|