| /* |
| * QLogic Fibre Channel HBA Driver |
| * Copyright (c) 2003-2014 QLogic Corporation |
| * |
| * See LICENSE.qla2xxx for copyright and licensing details. |
| */ |
| #include "qla_def.h" |
| #include "qla_gbl.h" |
| #include "qla_target.h" |
| |
| #include <linux/moduleparam.h> |
| #include <linux/vmalloc.h> |
| #include <linux/slab.h> |
| #include <linux/list.h> |
| |
| #include <scsi/scsi_tcq.h> |
| #include <scsi/scsicam.h> |
| #include <linux/delay.h> |
| |
| void |
| qla2x00_vp_stop_timer(scsi_qla_host_t *vha) |
| { |
| if (vha->vp_idx && vha->timer_active) { |
| del_timer_sync(&vha->timer); |
| vha->timer_active = 0; |
| } |
| } |
| |
| static uint32_t |
| qla24xx_allocate_vp_id(scsi_qla_host_t *vha) |
| { |
| uint32_t vp_id; |
| struct qla_hw_data *ha = vha->hw; |
| unsigned long flags; |
| |
| /* Find an empty slot and assign an vp_id */ |
| mutex_lock(&ha->vport_lock); |
| vp_id = find_first_zero_bit(ha->vp_idx_map, ha->max_npiv_vports + 1); |
| if (vp_id > ha->max_npiv_vports) { |
| ql_dbg(ql_dbg_vport, vha, 0xa000, |
| "vp_id %d is bigger than max-supported %d.\n", |
| vp_id, ha->max_npiv_vports); |
| mutex_unlock(&ha->vport_lock); |
| return vp_id; |
| } |
| |
| set_bit(vp_id, ha->vp_idx_map); |
| ha->num_vhosts++; |
| vha->vp_idx = vp_id; |
| |
| spin_lock_irqsave(&ha->vport_slock, flags); |
| list_add_tail(&vha->list, &ha->vp_list); |
| spin_unlock_irqrestore(&ha->vport_slock, flags); |
| |
| spin_lock_irqsave(&ha->hardware_lock, flags); |
| qlt_update_vp_map(vha, SET_VP_IDX); |
| spin_unlock_irqrestore(&ha->hardware_lock, flags); |
| |
| mutex_unlock(&ha->vport_lock); |
| return vp_id; |
| } |
| |
| void |
| qla24xx_deallocate_vp_id(scsi_qla_host_t *vha) |
| { |
| uint16_t vp_id; |
| struct qla_hw_data *ha = vha->hw; |
| unsigned long flags = 0; |
| |
| mutex_lock(&ha->vport_lock); |
| /* |
| * Wait for all pending activities to finish before removing vport from |
| * the list. |
| * Lock needs to be held for safe removal from the list (it |
| * ensures no active vp_list traversal while the vport is removed |
| * from the queue) |
| */ |
| wait_event_timeout(vha->vref_waitq, !atomic_read(&vha->vref_count), |
| 10*HZ); |
| |
| spin_lock_irqsave(&ha->vport_slock, flags); |
| if (atomic_read(&vha->vref_count)) { |
| ql_dbg(ql_dbg_vport, vha, 0xfffa, |
| "vha->vref_count=%u timeout\n", vha->vref_count.counter); |
| vha->vref_count = (atomic_t)ATOMIC_INIT(0); |
| } |
| list_del(&vha->list); |
| qlt_update_vp_map(vha, RESET_VP_IDX); |
| spin_unlock_irqrestore(&ha->vport_slock, flags); |
| |
| vp_id = vha->vp_idx; |
| ha->num_vhosts--; |
| clear_bit(vp_id, ha->vp_idx_map); |
| |
| mutex_unlock(&ha->vport_lock); |
| } |
| |
| static scsi_qla_host_t * |
| qla24xx_find_vhost_by_name(struct qla_hw_data *ha, uint8_t *port_name) |
| { |
| scsi_qla_host_t *vha; |
| struct scsi_qla_host *tvha; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&ha->vport_slock, flags); |
| /* Locate matching device in database. */ |
| list_for_each_entry_safe(vha, tvha, &ha->vp_list, list) { |
| if (!memcmp(port_name, vha->port_name, WWN_SIZE)) { |
| spin_unlock_irqrestore(&ha->vport_slock, flags); |
| return vha; |
| } |
| } |
| spin_unlock_irqrestore(&ha->vport_slock, flags); |
| return NULL; |
| } |
| |
| /* |
| * qla2x00_mark_vp_devices_dead |
| * Updates fcport state when device goes offline. |
| * |
| * Input: |
| * ha = adapter block pointer. |
| * fcport = port structure pointer. |
| * |
| * Return: |
| * None. |
| * |
| * Context: |
| */ |
| static void |
| qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha) |
| { |
| /* |
| * !!! NOTE !!! |
| * This function, if called in contexts other than vp create, disable |
| * or delete, please make sure this is synchronized with the |
| * delete thread. |
| */ |
| fc_port_t *fcport; |
| |
| list_for_each_entry(fcport, &vha->vp_fcports, list) { |
| ql_dbg(ql_dbg_vport, vha, 0xa001, |
| "Marking port dead, loop_id=0x%04x : %x.\n", |
| fcport->loop_id, fcport->vha->vp_idx); |
| |
| qla2x00_mark_device_lost(vha, fcport, 0, 0); |
| qla2x00_set_fcport_state(fcport, FCS_UNCONFIGURED); |
| } |
| } |
| |
| int |
| qla24xx_disable_vp(scsi_qla_host_t *vha) |
| { |
| unsigned long flags; |
| int ret; |
| |
| ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL); |
| atomic_set(&vha->loop_state, LOOP_DOWN); |
| atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); |
| |
| /* Remove port id from vp target map */ |
| spin_lock_irqsave(&vha->hw->hardware_lock, flags); |
| qlt_update_vp_map(vha, RESET_AL_PA); |
| spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); |
| |
| qla2x00_mark_vp_devices_dead(vha); |
| atomic_set(&vha->vp_state, VP_FAILED); |
| vha->flags.management_server_logged_in = 0; |
| if (ret == QLA_SUCCESS) { |
| fc_vport_set_state(vha->fc_vport, FC_VPORT_DISABLED); |
| } else { |
| fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); |
| return -1; |
| } |
| return 0; |
| } |
| |
| int |
| qla24xx_enable_vp(scsi_qla_host_t *vha) |
| { |
| int ret; |
| struct qla_hw_data *ha = vha->hw; |
| scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); |
| |
| /* Check if physical ha port is Up */ |
| if (atomic_read(&base_vha->loop_state) == LOOP_DOWN || |
| atomic_read(&base_vha->loop_state) == LOOP_DEAD || |
| !(ha->current_topology & ISP_CFG_F)) { |
| vha->vp_err_state = VP_ERR_PORTDWN; |
| fc_vport_set_state(vha->fc_vport, FC_VPORT_LINKDOWN); |
| ql_dbg(ql_dbg_taskm, vha, 0x800b, |
| "%s skip enable. loop_state %x topo %x\n", |
| __func__, base_vha->loop_state.counter, |
| ha->current_topology); |
| |
| goto enable_failed; |
| } |
| |
| /* Initialize the new vport unless it is a persistent port */ |
| mutex_lock(&ha->vport_lock); |
| ret = qla24xx_modify_vp_config(vha); |
| mutex_unlock(&ha->vport_lock); |
| |
| if (ret != QLA_SUCCESS) { |
| fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); |
| goto enable_failed; |
| } |
| |
| ql_dbg(ql_dbg_taskm, vha, 0x801a, |
| "Virtual port with id: %d - Enabled.\n", vha->vp_idx); |
| return 0; |
| |
| enable_failed: |
| ql_dbg(ql_dbg_taskm, vha, 0x801b, |
| "Virtual port with id: %d - Disabled.\n", vha->vp_idx); |
| return 1; |
| } |
| |
| static void |
| qla24xx_configure_vp(scsi_qla_host_t *vha) |
| { |
| struct fc_vport *fc_vport; |
| int ret; |
| |
| fc_vport = vha->fc_vport; |
| |
| ql_dbg(ql_dbg_vport, vha, 0xa002, |
| "%s: change request #3.\n", __func__); |
| ret = qla2x00_send_change_request(vha, 0x3, vha->vp_idx); |
| if (ret != QLA_SUCCESS) { |
| ql_dbg(ql_dbg_vport, vha, 0xa003, "Failed to enable " |
| "receiving of RSCN requests: 0x%x.\n", ret); |
| return; |
| } else { |
| /* Corresponds to SCR enabled */ |
| clear_bit(VP_SCR_NEEDED, &vha->vp_flags); |
| } |
| |
| vha->flags.online = 1; |
| if (qla24xx_configure_vhba(vha)) |
| return; |
| |
| atomic_set(&vha->vp_state, VP_ACTIVE); |
| fc_vport_set_state(fc_vport, FC_VPORT_ACTIVE); |
| } |
| |
| void |
| qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb) |
| { |
| scsi_qla_host_t *vha; |
| struct qla_hw_data *ha = rsp->hw; |
| int i = 0; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&ha->vport_slock, flags); |
| list_for_each_entry(vha, &ha->vp_list, list) { |
| if (vha->vp_idx) { |
| atomic_inc(&vha->vref_count); |
| spin_unlock_irqrestore(&ha->vport_slock, flags); |
| |
| switch (mb[0]) { |
| case MBA_LIP_OCCURRED: |
| case MBA_LOOP_UP: |
| case MBA_LOOP_DOWN: |
| case MBA_LIP_RESET: |
| case MBA_POINT_TO_POINT: |
| case MBA_CHG_IN_CONNECTION: |
| ql_dbg(ql_dbg_async, vha, 0x5024, |
| "Async_event for VP[%d], mb=0x%x vha=%p.\n", |
| i, *mb, vha); |
| qla2x00_async_event(vha, rsp, mb); |
| break; |
| case MBA_PORT_UPDATE: |
| case MBA_RSCN_UPDATE: |
| if ((mb[3] & 0xff) == vha->vp_idx) { |
| ql_dbg(ql_dbg_async, vha, 0x5024, |
| "Async_event for VP[%d], mb=0x%x vha=%p\n", |
| i, *mb, vha); |
| qla2x00_async_event(vha, rsp, mb); |
| } |
| break; |
| } |
| |
| spin_lock_irqsave(&ha->vport_slock, flags); |
| atomic_dec(&vha->vref_count); |
| wake_up(&vha->vref_waitq); |
| } |
| i++; |
| } |
| spin_unlock_irqrestore(&ha->vport_slock, flags); |
| } |
| |
| int |
| qla2x00_vp_abort_isp(scsi_qla_host_t *vha) |
| { |
| /* |
| * Physical port will do most of the abort and recovery work. We can |
| * just treat it as a loop down |
| */ |
| if (atomic_read(&vha->loop_state) != LOOP_DOWN) { |
| atomic_set(&vha->loop_state, LOOP_DOWN); |
| qla2x00_mark_all_devices_lost(vha, 0); |
| } else { |
| if (!atomic_read(&vha->loop_down_timer)) |
| atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); |
| } |
| |
| /* |
| * To exclusively reset vport, we need to log it out first. Note: this |
| * control_vp can fail if ISP reset is already issued, this is |
| * expected, as the vp would be already logged out due to ISP reset. |
| */ |
| if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) |
| qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL); |
| |
| ql_dbg(ql_dbg_taskm, vha, 0x801d, |
| "Scheduling enable of Vport %d.\n", vha->vp_idx); |
| return qla24xx_enable_vp(vha); |
| } |
| |
| static int |
| qla2x00_do_dpc_vp(scsi_qla_host_t *vha) |
| { |
| struct qla_hw_data *ha = vha->hw; |
| scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); |
| |
| ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x4012, |
| "Entering %s vp_flags: 0x%lx.\n", __func__, vha->vp_flags); |
| |
| /* Check if Fw is ready to configure VP first */ |
| if (test_bit(VP_CONFIG_OK, &base_vha->vp_flags)) { |
| if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) { |
| /* VP acquired. complete port configuration */ |
| ql_dbg(ql_dbg_dpc, vha, 0x4014, |
| "Configure VP scheduled.\n"); |
| qla24xx_configure_vp(vha); |
| ql_dbg(ql_dbg_dpc, vha, 0x4015, |
| "Configure VP end.\n"); |
| return 0; |
| } |
| } |
| |
| if (test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) { |
| ql_dbg(ql_dbg_dpc, vha, 0x4016, |
| "FCPort update scheduled.\n"); |
| qla2x00_update_fcports(vha); |
| clear_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags); |
| ql_dbg(ql_dbg_dpc, vha, 0x4017, |
| "FCPort update end.\n"); |
| } |
| |
| if (test_bit(RELOGIN_NEEDED, &vha->dpc_flags) && |
| !test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) && |
| atomic_read(&vha->loop_state) != LOOP_DOWN) { |
| |
| if (!vha->relogin_jif || |
| time_after_eq(jiffies, vha->relogin_jif)) { |
| vha->relogin_jif = jiffies + HZ; |
| clear_bit(RELOGIN_NEEDED, &vha->dpc_flags); |
| |
| ql_dbg(ql_dbg_dpc, vha, 0x4018, |
| "Relogin needed scheduled.\n"); |
| qla24xx_post_relogin_work(vha); |
| } |
| } |
| |
| if (test_and_clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) && |
| (!(test_and_set_bit(RESET_ACTIVE, &vha->dpc_flags)))) { |
| clear_bit(RESET_ACTIVE, &vha->dpc_flags); |
| } |
| |
| if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) { |
| if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) { |
| ql_dbg(ql_dbg_dpc, vha, 0x401a, |
| "Loop resync scheduled.\n"); |
| qla2x00_loop_resync(vha); |
| clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags); |
| ql_dbg(ql_dbg_dpc, vha, 0x401b, |
| "Loop resync end.\n"); |
| } |
| } |
| |
| ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x401c, |
| "Exiting %s.\n", __func__); |
| return 0; |
| } |
| |
| void |
| qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha) |
| { |
| struct qla_hw_data *ha = vha->hw; |
| scsi_qla_host_t *vp; |
| unsigned long flags = 0; |
| |
| if (vha->vp_idx) |
| return; |
| if (list_empty(&ha->vp_list)) |
| return; |
| |
| clear_bit(VP_DPC_NEEDED, &vha->dpc_flags); |
| |
| if (!(ha->current_topology & ISP_CFG_F)) |
| return; |
| |
| spin_lock_irqsave(&ha->vport_slock, flags); |
| list_for_each_entry(vp, &ha->vp_list, list) { |
| if (vp->vp_idx) { |
| atomic_inc(&vp->vref_count); |
| spin_unlock_irqrestore(&ha->vport_slock, flags); |
| |
| qla2x00_do_dpc_vp(vp); |
| |
| spin_lock_irqsave(&ha->vport_slock, flags); |
| atomic_dec(&vp->vref_count); |
| } |
| } |
| spin_unlock_irqrestore(&ha->vport_slock, flags); |
| } |
| |
| 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; |
| 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 = NPH_MGMT_SERVER; |
| |
| vha->dpc_flags = 0L; |
| |
| /* |
| * To fix the issue of processing a parent's RSCN for the vport before |
| * its SCR is complete. |
| */ |
| set_bit(VP_SCR_NEEDED, &vha->vp_flags); |
| atomic_set(&vha->loop_state, LOOP_DOWN); |
| atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); |
| |
| qla2x00_start_timer(vha, WATCH_INTERVAL); |
| |
| vha->req = base_vha->req; |
| host->can_queue = base_vha->req->length + 128; |
| host->cmd_per_lun = 3; |
| if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) |
| host->max_cmd_len = 32; |
| else |
| host->max_cmd_len = MAX_CMDSZ; |
| host->max_channel = MAX_BUSES - 1; |
| host->max_lun = ql2xmaxlun; |
| host->unique_id = host->host_no; |
| host->max_id = ha->max_fibre_devices; |
| host->transportt = qla2xxx_transport_vport_template; |
| |
| ql_dbg(ql_dbg_vport, vha, 0xa007, |
| "Detect vport hba %ld at address = %p.\n", |
| vha->host_no, vha); |
| |
| vha->flags.init_done = 1; |
| |
| mutex_lock(&ha->vport_lock); |
| set_bit(vha->vp_idx, ha->vp_idx_map); |
| ha->cur_vport_count++; |
| mutex_unlock(&ha->vport_lock); |
| |
| return vha; |
| |
| create_vhost_failed: |
| return NULL; |
| } |
| |
| static void |
| qla25xx_free_req_que(struct scsi_qla_host *vha, struct req_que *req) |
| { |
| struct qla_hw_data *ha = vha->hw; |
| uint16_t que_id = req->id; |
| |
| dma_free_coherent(&ha->pdev->dev, (req->length + 1) * |
| sizeof(request_t), req->ring, req->dma); |
| req->ring = NULL; |
| req->dma = 0; |
| if (que_id) { |
| ha->req_q_map[que_id] = NULL; |
| mutex_lock(&ha->vport_lock); |
| clear_bit(que_id, ha->req_qid_map); |
| mutex_unlock(&ha->vport_lock); |
| } |
| kfree(req->outstanding_cmds); |
| kfree(req); |
| req = NULL; |
| } |
| |
| static void |
| qla25xx_free_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp) |
| { |
| struct qla_hw_data *ha = vha->hw; |
| uint16_t que_id = rsp->id; |
| |
| if (rsp->msix && rsp->msix->have_irq) { |
| free_irq(rsp->msix->vector, rsp->msix->handle); |
| rsp->msix->have_irq = 0; |
| rsp->msix->in_use = 0; |
| rsp->msix->handle = NULL; |
| } |
| dma_free_coherent(&ha->pdev->dev, (rsp->length + 1) * |
| sizeof(response_t), rsp->ring, rsp->dma); |
| rsp->ring = NULL; |
| rsp->dma = 0; |
| if (que_id) { |
| ha->rsp_q_map[que_id] = NULL; |
| mutex_lock(&ha->vport_lock); |
| clear_bit(que_id, ha->rsp_qid_map); |
| mutex_unlock(&ha->vport_lock); |
| } |
| kfree(rsp); |
| rsp = NULL; |
| } |
| |
| int |
| qla25xx_delete_req_que(struct scsi_qla_host *vha, struct req_que *req) |
| { |
| int ret = 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 = (void *)(req->ring + req->length); |
| mutex_unlock(&ha->mq_lock); |
| ql_dbg(ql_dbg_multiq, base_vha, 0xc004, |
| "ring_ptr=%p ring_index=%d, " |
| "cnt=%d id=%d max_q_depth=%d.\n", |
| req->ring_ptr, req->ring_index, |
| req->cnt, req->id, req->max_q_depth); |
| ql_dbg(ql_dbg_init, base_vha, 0x00de, |
| "ring_ptr=%p ring_index=%d, " |
| "cnt=%d id=%d max_q_depth=%d.\n", |
| req->ring_ptr, req->ring_index, req->cnt, |
| req->id, req->max_q_depth); |
| |
| 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; |
| struct qla_hw_data *ha = qpair->hw; |
| struct srb_iocb *nvme, *nxt_nvme; |
| |
| spin_lock_irqsave(&qpair->qp_lock, flags); |
| vha = pci_get_drvdata(ha->pdev); |
| qla24xx_process_response_queue(vha, qpair->rsp); |
| spin_unlock_irqrestore(&qpair->qp_lock, flags); |
| |
| list_for_each_entry_safe(nvme, nxt_nvme, &qpair->nvme_done_list, |
| u.nvme.entry) { |
| list_del_init(&nvme->u.nvme.entry); |
| qla_nvme_cmpl_io(nvme); |
| } |
| } |
| |
| /* 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 = (void *)(rsp->ring + rsp->length); |
| mutex_unlock(&ha->mq_lock); |
| ql_dbg(ql_dbg_multiq, base_vha, 0xc00b, |
| "options=%x id=%d rsp_q_in=%p rsp_q_out=%p\n", |
| rsp->options, rsp->id, rsp->rsp_q_in, |
| rsp->rsp_q_out); |
| ql_dbg(ql_dbg_init, base_vha, 0x00e5, |
| "options=%x id=%d rsp_q_in=%p rsp_q_out=%p\n", |
| rsp->options, rsp->id, rsp->rsp_q_in, |
| rsp->rsp_q_out); |
| |
| ret = qla25xx_request_irq(ha, qpair, qpair->msix, |
| QLA_MSIX_QPAIR_MULTIQ_RSP_Q); |
| if (ret) |
| goto que_failed; |
| |
| 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(void *s, int res) |
| { |
| struct srb *sp = s; |
| |
| 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); |
| 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; |
| |
| sp = qla2x00_get_sp(base_vha, NULL, GFP_KERNEL); |
| if (!sp) |
| goto done; |
| |
| sp->type = SRB_CTRL_VP; |
| sp->name = "ctrl_vp"; |
| sp->done = qla_ctrlvp_sp_done; |
| qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2); |
| sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout; |
| 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_free_sp; |
| } |
| |
| ql_dbg(ql_dbg_vport, vha, 0x113f, "%s hndl %x submitted\n", |
| sp->name, sp->handle); |
| |
| wait_for_completion(&sp->comp); |
| 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); |
| goto done_free_sp; |
| default: |
| ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s Failed. %x.\n", |
| __func__, sp->name, rval); |
| goto done_free_sp; |
| } |
| done: |
| return rval; |
| |
| done_free_sp: |
| sp->free(sp); |
| return rval; |
| } |