From: James Smart Date: Wed, 4 Aug 2010 20:11:39 +0000 (-0400) Subject: [SCSI] lpfc 8.3.16: FCoE Discovery and Failover Fixes X-Git-Tag: v2.6.36-rc1~15^2~9 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=38b92ef89b0d5a255f2f812c623fcdec4e63a21c;p=profile%2Fivi%2Fkernel-adaptation-intel-automotive.git [SCSI] lpfc 8.3.16: FCoE Discovery and Failover Fixes - Add support for re-reg'ing changed VPI w/o unregister VPI - Copy WWN and state from old nodelist when target DID change. - Clean up old nodelist rport and put the nodelist when target DID change. - Clear the VFI_REGISTERED flag when UNREG_VFI completes. - Made both checks of port_state against LPFC_FLOGI and LPFC_FDISC non-inclusive for ignoring CVL events. - Added logic to stop retrying of the ongoing PLOGI and FDISC if transitioned back to the FCF rediscovery state in reaction to CVL. - Removed the dependency of scanning of all the available FCF table entries for bulding round-robin bitmap. - Use the lpfc_sli4_fcf_rr_read_fcf_rec() in responding to individual New FCF found event. Signed-off-by: Alex Iannicelli Signed-off-by: James Smart Signed-off-by: James Bottomley --- diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index afbed6b..8d09191 100644 --- a/drivers/scsi/lpfc/lpfc_els.c +++ b/drivers/scsi/lpfc/lpfc_els.c @@ -600,6 +600,14 @@ lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; spin_unlock_irq(shost->host_lock); } + } else if ((phba->sli_rev == LPFC_SLI_REV4) && + !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { + /* + * Driver needs to re-reg VPI in order for f/w + * to update the MAC address. + */ + lpfc_register_new_vport(phba, vport, ndlp); + return 0; } if (phba->sli_rev < LPFC_SLI_REV4) { @@ -801,9 +809,12 @@ lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, (irsp->un.ulpWord[4] != IOERR_SLI_ABORTED)) { lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, "2611 FLOGI failed on registered " - "FCF record fcf_index:%d, trying " - "to perform round robin failover\n", - phba->fcf.current_rec.fcf_indx); + "FCF record fcf_index(%d), status: " + "x%x/x%x, tmo:x%x, trying to perform " + "round robin failover\n", + phba->fcf.current_rec.fcf_indx, + irsp->ulpStatus, irsp->un.ulpWord[4], + irsp->ulpTimeout); fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) { /* @@ -841,6 +852,12 @@ lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, } } + /* FLOGI failure */ + lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, + "2858 FLOGI failure Status:x%x/x%x TMO:x%x\n", + irsp->ulpStatus, irsp->un.ulpWord[4], + irsp->ulpTimeout); + /* Check for retry */ if (lpfc_els_retry(phba, cmdiocb, rspiocb)) goto out; @@ -1291,6 +1308,8 @@ lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp, struct serv_parm *sp; uint8_t name[sizeof(struct lpfc_name)]; uint32_t rc, keepDID = 0; + int put_node; + int put_rport; /* Fabric nodes can have the same WWPN so we don't bother searching * by WWPN. Just return the ndlp that was given to us. @@ -1379,6 +1398,28 @@ lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp, /* Two ndlps cannot have the same did */ ndlp->nlp_DID = keepDID; lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); + /* Since we are swapping the ndlp passed in with the new one + * and the did has already been swapped, copy over the + * state and names. + */ + memcpy(&new_ndlp->nlp_portname, &ndlp->nlp_portname, + sizeof(struct lpfc_name)); + memcpy(&new_ndlp->nlp_nodename, &ndlp->nlp_nodename, + sizeof(struct lpfc_name)); + new_ndlp->nlp_state = ndlp->nlp_state; + /* Fix up the rport accordingly */ + rport = ndlp->rport; + if (rport) { + rdata = rport->dd_data; + put_node = rdata->pnode != NULL; + put_rport = ndlp->rport != NULL; + rdata->pnode = NULL; + ndlp->rport = NULL; + if (put_node) + lpfc_nlp_put(ndlp); + if (put_rport) + put_device(&rport->dev); + } } return new_ndlp; } @@ -2880,6 +2921,17 @@ lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, retry = 0; if (retry) { + if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_FDISC)) { + /* Stop retrying PLOGI and FDISC if in FCF discovery */ + if (phba->fcf.fcf_flag & FCF_DISCOVERY) { + lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, + "2849 Stop retry ELS command " + "x%x to remote NPORT x%x, " + "Data: x%x x%x\n", cmd, did, + cmdiocb->retry, delay); + return 0; + } + } /* Retry ELS command to remote NPORT */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, @@ -6076,8 +6128,12 @@ lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) if (mb->mbxStatus) { lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, - "0915 Register VPI failed: 0x%x\n", - mb->mbxStatus); + "0915 Register VPI failed : Status: x%x" + " upd bit: x%x \n", mb->mbxStatus, + mb->un.varRegVpi.upd); + if (phba->sli_rev == LPFC_SLI_REV4 && + mb->un.varRegVpi.upd) + goto mbox_err_exit ; switch (mb->mbxStatus) { case 0x11: /* unsupported feature */ @@ -6142,7 +6198,7 @@ lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) } else lpfc_do_scr_ns_plogi(phba, vport); } - +mbox_err_exit: /* Now, we decrement the ndlp reference count held for this * callback function */ @@ -6387,6 +6443,14 @@ lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, else vport->fc_flag |= FC_LOGO_RCVD_DID_CHNG; spin_unlock_irq(shost->host_lock); + } else if ((phba->sli_rev == LPFC_SLI_REV4) && + !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { + /* + * Driver needs to re-reg VPI in order for f/w + * to update the MAC address. + */ + lpfc_register_new_vport(phba, vport, ndlp); + return ; } if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI) diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c index efba65b..1f62ea8 100644 --- a/drivers/scsi/lpfc/lpfc_hbadisc.c +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c @@ -1852,8 +1852,7 @@ lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); else if (phba->fcf.fcf_flag & FCF_REDISC_FOV) /* If in fast failover, mark it's completed */ - phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | - FCF_DISCOVERY); + phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; spin_unlock_irq(&phba->hbalock); lpfc_printf_log(phba, KERN_INFO, LOG_FIP, "2836 The new FCF record (x%x) " @@ -2651,7 +2650,6 @@ lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la) spin_unlock_irq(&phba->hbalock); lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, "2778 Start FCF table scan at linkup\n"); - rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); if (rc) { @@ -2660,6 +2658,9 @@ lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la) spin_unlock_irq(&phba->hbalock); goto out; } + /* Reset FCF roundrobin bmask for new discovery */ + memset(phba->fcf.fcf_rr_bmask, 0, + sizeof(*phba->fcf.fcf_rr_bmask)); } return; @@ -5097,6 +5098,7 @@ static void lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) { struct lpfc_vport *vport = mboxq->vport; + struct Scsi_Host *shost = lpfc_shost_from_vport(vport); if (mboxq->u.mb.mbxStatus) { lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, @@ -5104,6 +5106,9 @@ lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) "HBA state x%x\n", mboxq->u.mb.mbxStatus, vport->port_state); } + spin_lock_irq(shost->host_lock); + phba->pport->fc_flag &= ~FC_VFI_REGISTERED; + spin_unlock_irq(shost->host_lock); mempool_free(mboxq, phba->mbox_mem_pool); return; } @@ -5285,6 +5290,10 @@ lpfc_unregister_fcf_rescan(struct lpfc_hba *phba) spin_lock_irq(&phba->hbalock); phba->fcf.fcf_flag |= FCF_INIT_DISC; spin_unlock_irq(&phba->hbalock); + + /* Reset FCF roundrobin bmask for new discovery */ + memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask)); + rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); if (rc) { diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h index 897caa0..1676f61 100644 --- a/drivers/scsi/lpfc/lpfc_hw.h +++ b/drivers/scsi/lpfc/lpfc_hw.h @@ -2291,7 +2291,8 @@ typedef struct { typedef struct { #ifdef __BIG_ENDIAN_BITFIELD uint32_t rsvd1; - uint32_t rsvd2:8; + uint32_t rsvd2:7; + uint32_t upd:1; uint32_t sid:24; uint32_t wwn[2]; uint32_t rsvd5; @@ -2300,7 +2301,8 @@ typedef struct { #else /* __LITTLE_ENDIAN */ uint32_t rsvd1; uint32_t sid:24; - uint32_t rsvd2:8; + uint32_t upd:1; + uint32_t rsvd2:7; uint32_t wwn[2]; uint32_t rsvd5; uint16_t vpi; diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 9244aa6..da9ba06 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -3300,10 +3300,10 @@ lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) if (!ndlp) return 0; } - if (phba->pport->port_state <= LPFC_FLOGI) + if (phba->pport->port_state < LPFC_FLOGI) return NULL; /* If virtual link is not yet instantiated ignore CVL */ - if (vport->port_state <= LPFC_FDISC) + if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)) return NULL; shost = lpfc_shost_from_vport(vport); if (!shost) @@ -3376,21 +3376,7 @@ lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba, "evt_tag:x%x, fcf_index:x%x\n", acqe_fcoe->event_tag, acqe_fcoe->index); - /* If the FCF discovery is in progress, do nothing. */ - spin_lock_irq(&phba->hbalock); - if (phba->hba_flag & FCF_DISC_INPROGRESS) { - spin_unlock_irq(&phba->hbalock); - break; - } - /* If fast FCF failover rescan event is pending, do nothing */ - if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { - spin_unlock_irq(&phba->hbalock); - break; - } - spin_unlock_irq(&phba->hbalock); - - if ((phba->fcf.fcf_flag & FCF_DISCOVERY) && - !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { + if (phba->fcf.fcf_flag & FCF_DISCOVERY) { /* * During period of FCF discovery, read the FCF * table record indexed by the event to update @@ -3404,13 +3390,26 @@ lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba, acqe_fcoe->index); rc = lpfc_sli4_read_fcf_rec(phba, acqe_fcoe->index); } - /* If the FCF has been in discovered state, do nothing. */ + + /* If the FCF discovery is in progress, do nothing. */ spin_lock_irq(&phba->hbalock); + if (phba->hba_flag & FCF_DISC_INPROGRESS) { + spin_unlock_irq(&phba->hbalock); + break; + } + /* If fast FCF failover rescan event is pending, do nothing */ + if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { + spin_unlock_irq(&phba->hbalock); + break; + } + + /* If the FCF has been in discovered state, do nothing. */ if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { spin_unlock_irq(&phba->hbalock); break; } spin_unlock_irq(&phba->hbalock); + /* 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 " @@ -3436,13 +3435,9 @@ lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba, "2549 FCF disconnected from network index 0x%x" " tag 0x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag); - /* If the event is not for currently used fcf do nothing */ - if (phba->fcf.current_rec.fcf_indx != acqe_fcoe->index) - break; - /* We request port to rediscover the entire FCF table for - * a fast recovery from case that the current FCF record - * is no longer valid if we are not in the middle of FCF - * failover process already. + /* + * If we are in the middle of FCF failover process, clear + * the corresponding FCF bit in the roundrobin bitmap. */ spin_lock_irq(&phba->hbalock); if (phba->fcf.fcf_flag & FCF_DISCOVERY) { @@ -3451,9 +3446,23 @@ lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba, lpfc_sli4_fcf_rr_index_clear(phba, acqe_fcoe->index); break; } + spin_unlock_irq(&phba->hbalock); + + /* If the event is not for currently used fcf do nothing */ + if (phba->fcf.current_rec.fcf_indx != acqe_fcoe->index) + break; + + /* + * Otherwise, request the port to rediscover the entire FCF + * table for a fast recovery from case that the current FCF + * is no longer valid as we are not in the middle of FCF + * failover process already. + */ + spin_lock_irq(&phba->hbalock); /* Mark the fast failover process in progress */ phba->fcf.fcf_flag |= FCF_DEAD_DISC; spin_unlock_irq(&phba->hbalock); + lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, "2771 Start FCF fast failover process due to " "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " @@ -3473,12 +3482,16 @@ lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba, * as a link down to FCF registration. */ lpfc_sli4_fcf_dead_failthrough(phba); - } else - /* Handling fast FCF failover to a DEAD FCF event - * is considered equalivant to receiving CVL to all - * vports. + } else { + /* Reset FCF roundrobin bmask for new discovery */ + memset(phba->fcf.fcf_rr_bmask, 0, + sizeof(*phba->fcf.fcf_rr_bmask)); + /* + * Handling fast FCF failover to a DEAD FCF event is + * considered equalivant to receiving CVL to all vports. */ lpfc_sli4_perform_all_vport_cvl(phba); + } break; case LPFC_FCOE_EVENT_TYPE_CVL: lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, @@ -3553,7 +3566,13 @@ lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba, * the current registered FCF entry. */ lpfc_retry_pport_discovery(phba); - } + } else + /* + * Reset FCF roundrobin bmask for new + * discovery. + */ + memset(phba->fcf.fcf_rr_bmask, 0, + sizeof(*phba->fcf.fcf_rr_bmask)); } break; default: diff --git a/drivers/scsi/lpfc/lpfc_mbox.c b/drivers/scsi/lpfc/lpfc_mbox.c index 9c2c7c7..0dfa310 100644 --- a/drivers/scsi/lpfc/lpfc_mbox.c +++ b/drivers/scsi/lpfc/lpfc_mbox.c @@ -815,9 +815,15 @@ void lpfc_reg_vpi(struct lpfc_vport *vport, LPFC_MBOXQ_t *pmb) { MAILBOX_t *mb = &pmb->u.mb; + struct lpfc_hba *phba = vport->phba; memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); - + /* + * Set the re-reg VPI bit for f/w to update the MAC address. + */ + if ((phba->sli_rev == LPFC_SLI_REV4) && + !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) + mb->un.varRegVpi.upd = 1; mb->un.varRegVpi.vpi = vport->vpi + vport->phba->vpi_base; mb->un.varRegVpi.sid = vport->fc_myDID; mb->un.varRegVpi.vfi = vport->vfi + vport->phba->vfi_base; diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 0ce9eb7..fb8905f 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -12295,12 +12295,9 @@ lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index) spin_lock_irq(&phba->hbalock); phba->hba_flag |= FCF_DISC_INPROGRESS; spin_unlock_irq(&phba->hbalock); - /* Reset FCF round robin index bmask for new scan */ - if (fcf_index == LPFC_FCOE_FCF_GET_FIRST) { - memset(phba->fcf.fcf_rr_bmask, 0, - sizeof(*phba->fcf.fcf_rr_bmask)); + /* Reset eligible FCF count for new scan */ + if (fcf_index == LPFC_FCOE_FCF_GET_FIRST) phba->fcf.eligible_fcf_cnt = 0; - } error = 0; } fail_fcf_scan: