X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fscsi%2Flpfc%2Flpfc_init.c;h=b3065791f30333b9667dcb0f9d3d222facb76fc0;hb=ce9d8d9f7214c7b74a5dd7be8221545269a31155;hp=295c7ddb36c11fa72eaa6626aa7203ac4fb1eabf;hpb=18a043f9413277523cf5011e594caa1747db4948;p=pandora-kernel.git diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 295c7ddb36c1..b3065791f303 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -813,6 +813,7 @@ lpfc_hba_down_post_s3(struct lpfc_hba *phba) return 0; } + /** * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset * @phba: pointer to lpfc HBA data structure. @@ -2234,10 +2235,9 @@ lpfc_stop_vport_timers(struct lpfc_vport *vport) void __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) { - /* Clear pending FCF rediscovery wait and failover in progress flags */ - phba->fcf.fcf_flag &= ~(FCF_REDISC_PEND | - FCF_DEAD_DISC | - FCF_ACVL_DISC); + /* Clear pending FCF rediscovery wait flag */ + phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; + /* Now, try to stop the timer */ del_timer(&phba->fcf.redisc_wait); } @@ -2261,6 +2261,8 @@ lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) return; } __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); + /* Clear failover in progress flags */ + phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); spin_unlock_irq(&phba->hbalock); } @@ -2935,8 +2937,7 @@ lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) phba->fcf.fcf_flag |= FCF_REDISC_EVT; spin_unlock_irq(&phba->hbalock); lpfc_printf_log(phba, KERN_INFO, LOG_FIP, - "2776 FCF rediscover wait timer expired, post " - "a worker thread event for FCF table scan\n"); + "2776 FCF rediscover quiescent timer expired\n"); /* wake up worker thread */ lpfc_worker_wake_up(phba); } @@ -3311,35 +3312,34 @@ lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba, if (event_type == LPFC_FCOE_EVENT_TYPE_NEW_FCF) lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, - "2546 New FCF found event: " - "evt_tag:x%x, fcf_index:x%x\n", + "2546 New FCF event, evt_tag:x%x, " + "index:x%x\n", acqe_fcoe->event_tag, acqe_fcoe->index); else lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_DISCOVERY, - "2788 FCF parameter modified event: " - "evt_tag:x%x, fcf_index:x%x\n", + "2788 FCF param modified event, " + "evt_tag:x%x, index:x%x\n", acqe_fcoe->event_tag, acqe_fcoe->index); if (phba->fcf.fcf_flag & FCF_DISCOVERY) { /* * During period of FCF discovery, read the FCF * table record indexed by the event to update - * FCF round robin failover eligible FCF bmask. + * FCF roundrobin failover eligible FCF bmask. */ lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, - "2779 Read new FCF record with " - "fcf_index:x%x for updating FCF " - "round robin failover bmask\n", + "2779 Read FCF (x%x) for updating " + "roundrobin FCF failover bmask\n", acqe_fcoe->index); rc = lpfc_sli4_read_fcf_rec(phba, acqe_fcoe->index); } /* If the FCF discovery is in progress, do nothing. */ spin_lock_irq(&phba->hbalock); - if (phba->hba_flag & FCF_DISC_INPROGRESS) { + if (phba->hba_flag & FCF_TS_INPROG) { spin_unlock_irq(&phba->hbalock); break; } @@ -3358,15 +3358,15 @@ lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba, /* Otherwise, scan the entire FCF table and re-discover SAN */ lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, - "2770 Start FCF table scan due to new FCF " - "event: evt_tag:x%x, fcf_index:x%x\n", + "2770 Start FCF table scan per async FCF " + "event, evt_tag:x%x, index:x%x\n", acqe_fcoe->event_tag, acqe_fcoe->index); rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); if (rc) lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, "2547 Issue FCF scan read FCF mailbox " - "command failed 0x%x\n", rc); + "command failed (x%x)\n", rc); break; case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL: @@ -3378,9 +3378,8 @@ lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba, case LPFC_FCOE_EVENT_TYPE_FCF_DEAD: lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, - "2549 FCF disconnected from network index 0x%x" - " tag 0x%x\n", acqe_fcoe->index, - acqe_fcoe->event_tag); + "2549 FCF (x%x) disconnected from network, " + "tag:x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag); /* * If we are in the middle of FCF failover process, clear * the corresponding FCF bit in the roundrobin bitmap. @@ -3494,9 +3493,8 @@ lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba, spin_unlock_irq(&phba->hbalock); lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, - "2773 Start FCF fast failover due " - "to CVL event: evt_tag:x%x\n", - acqe_fcoe->event_tag); + "2773 Start FCF failover per CVL, " + "evt_tag:x%x\n", acqe_fcoe->event_tag); rc = lpfc_sli4_redisc_fcf_table(phba); if (rc) { lpfc_printf_log(phba, KERN_ERR, LOG_FIP | @@ -3646,8 +3644,7 @@ void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) /* Scan FCF table from the first entry to re-discover SAN */ lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, - "2777 Start FCF table scan after FCF " - "rediscovery quiescent period over\n"); + "2777 Start post-quiescent FCF table scan\n"); rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); if (rc) lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, @@ -4165,7 +4162,7 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) goto out_free_active_sgl; } - /* Allocate eligible FCF bmask memory for FCF round robin failover */ + /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), GFP_KERNEL); @@ -7270,6 +7267,51 @@ lpfc_sli4_unset_hba(struct lpfc_hba *phba) return; } +/** + * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy + * @phba: Pointer to HBA context object. + * + * This function is called in the SLI4 code path to wait for completion + * of device's XRIs exchange busy. It will check the XRI exchange busy + * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after + * that, it will check the XRI exchange busy on outstanding FCP and ELS + * I/Os every 30 seconds, log error message, and wait forever. Only when + * all XRI exchange busy complete, the driver unload shall proceed with + * invoking the function reset ioctl mailbox command to the CNA and the + * the rest of the driver unload resource release. + **/ +static void +lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) +{ + int wait_time = 0; + int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); + int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); + + while (!fcp_xri_cmpl || !els_xri_cmpl) { + if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { + if (!fcp_xri_cmpl) + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2877 FCP XRI exchange busy " + "wait time: %d seconds.\n", + wait_time/1000); + if (!els_xri_cmpl) + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2878 ELS XRI exchange busy " + "wait time: %d seconds.\n", + wait_time/1000); + msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); + wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; + } else { + msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); + wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; + } + fcp_xri_cmpl = + list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); + els_xri_cmpl = + list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); + } +} + /** * lpfc_sli4_hba_unset - Unset the fcoe hba * @phba: Pointer to HBA context object. @@ -7315,6 +7357,12 @@ lpfc_sli4_hba_unset(struct lpfc_hba *phba) spin_unlock_irq(&phba->hbalock); } + /* Abort all iocbs associated with the hba */ + lpfc_sli_hba_iocb_abort(phba); + + /* Wait for completion of device XRI exchange busy */ + lpfc_sli4_xri_exchange_busy_wait(phba); + /* Disable PCI subsystem interrupt */ lpfc_sli4_disable_intr(phba);