From 57178b9275508e59d6daf89b874c03d597342776 Mon Sep 17 00:00:00 2001 From: James Smart Date: Wed, 14 Aug 2019 16:56:37 -0700 Subject: [PATCH] scsi: lpfc: Fix port relogin failure due to GID_FT interaction In cases of remote-port-side cable pull/replug, there happens to be a target that upon replug will send the port a PLOGI, a PRLI, and a LOGO. When this sequence is received by the driver, the PLOGI accepted and a GFT_ID is issued to find the protocol support for the remote port. While the GFT_ID is outstanding, a LOGO is received. The driver logs the remote port out and unregisters the RPI and schedules a new PLOGI transmission. However, the GFT_ID was not terminated. When it completed, the driver attempted to transition the remote port to PRLI transmission, which cancels the PLOGI scheduling. The PRLI transmit attempt is rejected by the adapter as the remote port is not logged in. No retry is attempted as it's expected the logout is noted and the supposedly scheduled PLOGI should address the state. As there is no PLOGI, the remote port does not get re-discovered. Fix by aborting the outstanding GFT_ID if the related remote port is logged out. Ensure a PRLI transmit attempt only occurs if the remote port is logging in. This avoids the incorrect attempt while logged out. Signed-off-by: Dick Kennedy Signed-off-by: James Smart Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_ct.c | 15 ++++++++++----- drivers/scsi/lpfc/lpfc_nportdisc.c | 8 ++++++++ 2 files changed, 18 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_ct.c b/drivers/scsi/lpfc/lpfc_ct.c index ec72c39997d2..3246942ff2ff 100644 --- a/drivers/scsi/lpfc/lpfc_ct.c +++ b/drivers/scsi/lpfc/lpfc_ct.c @@ -1210,13 +1210,18 @@ lpfc_cmpl_ct_cmd_gft_id(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, ndlp->nlp_fc4_type |= NLP_FC4_NVME; lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, "3064 Setting ndlp %p, DID x%06x with " - "FC4 x%08x, Data: x%08x x%08x\n", + "FC4 x%08x, Data: x%08x x%08x %d\n", ndlp, did, ndlp->nlp_fc4_type, - FC_TYPE_FCP, FC_TYPE_NVME); - ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; + FC_TYPE_FCP, FC_TYPE_NVME, + ndlp->nlp_state); - lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); - lpfc_issue_els_prli(vport, ndlp, 0); + if (ndlp->nlp_state == NLP_STE_REG_LOGIN_ISSUE) { + ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; + + lpfc_nlp_set_state(vport, ndlp, + NLP_STE_PRLI_ISSUE); + lpfc_issue_els_prli(vport, ndlp, 0); + } } } else lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c index 59252bfca14e..c58000cd744f 100644 --- a/drivers/scsi/lpfc/lpfc_nportdisc.c +++ b/drivers/scsi/lpfc/lpfc_nportdisc.c @@ -1661,6 +1661,7 @@ lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, LPFC_MBOXQ_t *mb; LPFC_MBOXQ_t *nextmb; struct lpfc_dmabuf *mp; + struct lpfc_nodelist *ns_ndlp; cmdiocb = (struct lpfc_iocbq *) arg; @@ -1693,6 +1694,13 @@ 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 && NLP_CHK_NODE_ACT(ns_ndlp)) + lpfc_els_abort(phba, ns_ndlp); + } + lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); return ndlp->nlp_state; }