diff options
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_hbadisc.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_hbadisc.c | 59 |
1 files changed, 21 insertions, 38 deletions
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c index 5ba3a9ad9501..499849b58ee4 100644 --- a/drivers/scsi/lpfc/lpfc_hbadisc.c +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c @@ -458,11 +458,9 @@ lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) if (ndlp->nlp_type & NLP_FABRIC) { spin_lock_irqsave(&ndlp->lock, iflags); - /* In massive vport configuration settings or when the FLOGI - * completes with a sequence timeout, it's possible - * dev_loss_tmo fired during node recovery. The driver has to - * account for this race to allow for recovery and keep - * the reference counting correct. + /* The driver has to account for a race between any fabric + * node that's in recovery when dev_loss_tmo expires. When this + * happens, the driver has to allow node recovery. */ switch (ndlp->nlp_DID) { case Fabric_DID: @@ -489,6 +487,17 @@ lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) ndlp->nlp_state <= NLP_STE_REG_LOGIN_ISSUE) recovering = true; break; + default: + /* Ensure the nlp_DID at least has the correct prefix. + * The fabric domain controller's last three nibbles + * vary so we handle it in the default case. + */ + if (ndlp->nlp_DID & Fabric_DID_MASK) { + if (ndlp->nlp_state >= NLP_STE_PLOGI_ISSUE && + ndlp->nlp_state <= NLP_STE_REG_LOGIN_ISSUE) + recovering = true; + } + break; } spin_unlock_irqrestore(&ndlp->lock, iflags); @@ -556,6 +565,9 @@ lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); } + spin_lock_irqsave(&ndlp->lock, iflags); + ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS; + spin_unlock_irqrestore(&ndlp->lock, iflags); /* If we are devloss, but we are in the process of rediscovering the * ndlp, don't issue a NLP_EVT_DEVICE_RM event. @@ -565,9 +577,6 @@ lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) return fcf_inuse; } - spin_lock_irqsave(&ndlp->lock, iflags); - ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS; - spin_unlock_irqrestore(&ndlp->lock, iflags); if (!(ndlp->fc4_xpt_flags & NVME_XPT_REGD)) lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); @@ -4333,13 +4342,14 @@ out: /* If the node is not registered with the scsi or nvme * transport, remove the fabric node. The failed reg_login - * is terminal. + * is terminal and forces the removal of the last node + * reference. */ if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) { spin_lock_irq(&ndlp->lock); ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; spin_unlock_irq(&ndlp->lock); - lpfc_nlp_not_used(ndlp); + lpfc_nlp_put(ndlp); } if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { @@ -4497,14 +4507,6 @@ lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) if (vport->load_flag & FC_UNLOADING) return; - /* - * Disassociate any older association between this ndlp and rport - */ - if (ndlp->rport) { - rdata = ndlp->rport->dd_data; - rdata->pnode = NULL; - } - ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids); if (!rport) { dev_printk(KERN_WARNING, &phba->pcidev->dev, @@ -4835,7 +4837,7 @@ lpfc_nlp_state_name(char *buffer, size_t size, int state) }; if (state < NLP_STE_MAX_STATE && states[state]) - strlcpy(buffer, states[state], size); + strscpy(buffer, states[state], size); else snprintf(buffer, size, "unknown (%d)", state); return buffer; @@ -6704,25 +6706,6 @@ lpfc_nlp_put(struct lpfc_nodelist *ndlp) return ndlp ? kref_put(&ndlp->kref, lpfc_nlp_release) : 0; } -/* This routine free's the specified nodelist if it is not in use - * by any other discovery thread. This routine returns 1 if the - * ndlp has been freed. A return value of 0 indicates the ndlp is - * not yet been released. - */ -int -lpfc_nlp_not_used(struct lpfc_nodelist *ndlp) -{ - lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, - "node not used: did:x%x flg:x%x refcnt:x%x", - ndlp->nlp_DID, ndlp->nlp_flag, - kref_read(&ndlp->kref)); - - if (kref_read(&ndlp->kref) == 1) - if (lpfc_nlp_put(ndlp)) - return 1; - return 0; -} - /** * lpfc_fcf_inuse - Check if FCF can be unregistered. * @phba: Pointer to hba context object. |