diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_mid.c | 974 |
1 files changed, 974 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c new file mode 100644 index 000000000..516fccdbc --- /dev/null +++ b/drivers/scsi/qla2xxx/qla_mid.c @@ -0,0 +1,974 @@ +/* + * 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 = QLA_SUCCESS; + fc_port_t *fcport; + + if (vha->hw->flags.fw_started) + 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); + list_for_each_entry(fcport, &vha->vp_fcports, list) + fcport->logout_on_delete = 0; + + qla2x00_mark_all_devices_lost(vha, 0); + + /* 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 = qla2x00_reserve_mgmt_server_loop_id(vha); + + 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; + + spin_lock_irqsave(&qpair->qp_lock, flags); + vha = pci_get_drvdata(ha->pdev); + qla24xx_process_response_queue(vha, qpair->rsp); + spin_unlock_irqrestore(&qpair->qp_lock, flags); + +} + +/* create response queue */ +int +qla25xx_create_rsp_que(struct qla_hw_data *ha, uint16_t options, + uint8_t vp_idx, uint16_t rid, struct qla_qpair *qpair, 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) + return rval; + + sp->type = SRB_CTRL_VP; + sp->name = "ctrl_vp"; + sp->done = qla_ctrlvp_sp_done; + sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout; + qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2); + 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(&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); + break; + default: + ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s Failed. %x.\n", + __func__, sp->name, rval); + break; + } +done: + sp->free(sp); + return rval; +} |