diff options
author | Justin Tee <justin.tee@broadcom.com> | 2023-07-12 21:05:17 +0300 |
---|---|---|
committer | Martin K. Petersen <martin.petersen@oracle.com> | 2023-07-23 23:17:07 +0300 |
commit | 9388da30376670613d7b8031e6d62b0b6ce08228 (patch) | |
tree | 1a90669cead00fa8af917f0814558b0e6cdfa69c /drivers/scsi/lpfc/lpfc_nportdisc.c | |
parent | 04c3200114921ba7223997dc61ddeedc6f581991 (diff) | |
download | linux-9388da30376670613d7b8031e6d62b0b6ce08228.tar.xz |
scsi: lpfc: Make fabric zone discovery more robust when handling unsolicited LOGO
This patch provides better target rport recovery when a target rport is
running in initiator mode to discover the fabric. Such a target will issue
a LOGO before switching back to strict target mode and changes are made to
recover the login. Log messages are also updated accordingly.
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20230712180522.112722-8-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_nportdisc.c')
-rw-r--r-- | drivers/scsi/lpfc/lpfc_nportdisc.c | 53 |
1 files changed, 28 insertions, 25 deletions
diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c index 6261560eb512..8f6424487397 100644 --- a/drivers/scsi/lpfc/lpfc_nportdisc.c +++ b/drivers/scsi/lpfc/lpfc_nportdisc.c @@ -879,23 +879,34 @@ lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, spin_unlock_irq(shost->host_lock); lpfc_retry_pport_discovery(phba); } - } else if ((!(ndlp->nlp_type & NLP_FABRIC) && - ((ndlp->nlp_type & NLP_FCP_TARGET) || - (ndlp->nlp_type & NLP_NVME_TARGET) || - (vport->fc_flag & FC_PT2PT))) || - (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) { - /* Only try to re-login if this is NOT a Fabric Node - * AND the remote NPORT is a FCP/NVME Target or we - * are in pt2pt mode. NLP_STE_ADISC_ISSUE is a special - * case for LOGO as a response to ADISC behavior. - */ - mod_timer(&ndlp->nlp_delayfunc, - jiffies + msecs_to_jiffies(1000 * 1)); - spin_lock_irq(&ndlp->lock); - ndlp->nlp_flag |= NLP_DELAY_TMO; - spin_unlock_irq(&ndlp->lock); - - ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; + } else { + lpfc_printf_vlog(vport, KERN_INFO, + LOG_NODE | LOG_ELS | LOG_DISCOVERY, + "3203 LOGO recover nport x%06x state x%x " + "ntype x%x fc_flag x%x\n", + ndlp->nlp_DID, ndlp->nlp_state, + ndlp->nlp_type, vport->fc_flag); + + /* Special cases for rports that recover post LOGO. */ + if ((!(ndlp->nlp_type == NLP_FABRIC) && + (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET) || + vport->fc_flag & FC_PT2PT)) || + (ndlp->nlp_state >= NLP_STE_ADISC_ISSUE || + ndlp->nlp_state <= NLP_STE_PRLI_ISSUE)) { + mod_timer(&ndlp->nlp_delayfunc, + jiffies + msecs_to_jiffies(1000 * 1)); + spin_lock_irq(&ndlp->lock); + ndlp->nlp_flag |= NLP_DELAY_TMO; + spin_unlock_irq(&ndlp->lock); + ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; + lpfc_printf_vlog(vport, KERN_INFO, + LOG_NODE | LOG_ELS | LOG_DISCOVERY, + "3204 Start nlpdelay on DID x%06x " + "nflag x%x lastels x%x ref cnt %u", + ndlp->nlp_DID, ndlp->nlp_flag, + ndlp->nlp_last_elscmd, + kref_read(&ndlp->kref)); + } } out: /* Unregister from backend, could have been skipped due to ADISC */ @@ -1854,7 +1865,6 @@ lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; LPFC_MBOXQ_t *mb; LPFC_MBOXQ_t *nextmb; - struct lpfc_nodelist *ns_ndlp; cmdiocb = (struct lpfc_iocbq *) arg; @@ -1882,13 +1892,6 @@ lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, } spin_unlock_irq(&phba->hbalock); - /* software abort if any GID_FT is outstanding */ - if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) { - ns_ndlp = lpfc_findnode_did(vport, NameServer_DID); - if (ns_ndlp) - lpfc_els_abort(phba, ns_ndlp); - } - lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); return ndlp->nlp_state; } |