From: James Smart <jsmart2021@gmail.com>
Date: Wed, 21 Jun 2017 17:37:58 +0000 (-0700)
Subject: scsi: lpfc: Fix nvme io stoppage after link bounce
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=00cefeb964f525672b5344446e5bb72188b03e38;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

scsi: lpfc: Fix nvme io stoppage after link bounce

On link down, transport is calling driver to abort outstanding ios.
Driver erroneously rejects the abort if the port indicates it isn't
logged in - which will be the case after the link down. Thus, the io
can't clean up. This prevents reconnection at the transport level.

Fix by allowing abort to proceed.

Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
---

diff --git a/drivers/scsi/lpfc/lpfc_nvme.c b/drivers/scsi/lpfc/lpfc_nvme.c
index 8206aa5493e3..0a0a1b92d01d 100644
--- a/drivers/scsi/lpfc/lpfc_nvme.c
+++ b/drivers/scsi/lpfc/lpfc_nvme.c
@@ -1427,7 +1427,6 @@ lpfc_nvme_fcp_abort(struct nvme_fc_local_port *pnvme_lport,
 	struct lpfc_nvme_lport *lport;
 	struct lpfc_vport *vport;
 	struct lpfc_hba *phba;
-	struct lpfc_nodelist *ndlp;
 	struct lpfc_nvme_rport *rport;
 	struct lpfc_nvme_buf *lpfc_nbuf;
 	struct lpfc_iocbq *abts_buf;
@@ -1449,38 +1448,6 @@ lpfc_nvme_fcp_abort(struct nvme_fc_local_port *pnvme_lport,
 			 pnvme_rport->port_id,
 			 pnvme_fcreq);
 
-	/*
-	 * Catch race where our node has transitioned, but the
-	 * transport is still transitioning.
-	 */
-	ndlp = rport->ndlp;
-	if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
-		lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE | LOG_NVME_ABTS,
-				 "6054 rport %p, ndlp %p, DID x%06x ndlp "
-				 " not ready.\n",
-				 rport, ndlp, pnvme_rport->port_id);
-
-		ndlp = lpfc_findnode_did(vport, pnvme_rport->port_id);
-		if (!ndlp) {
-			lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_ABTS,
-					 "6055 Could not find node for "
-					 "DID %x\n",
-					 pnvme_rport->port_id);
-			return;
-		}
-	}
-
-	/* The remote node has to be ready to send an abort. */
-	if ((ndlp->nlp_state != NLP_STE_MAPPED_NODE) &&
-	    (ndlp->nlp_type & NLP_NVME_TARGET)) {
-		lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_ABTS,
-				 "6048 rport %p, DID x%06x not ready for "
-				 "IO. State x%x, Type x%x\n",
-				 rport, pnvme_rport->port_id,
-				 ndlp->nlp_state, ndlp->nlp_type);
-		return;
-	}
-
 	/* If the hba is getting reset, this flag is set.  It is
 	 * cleared when the reset is complete and rings reestablished.
 	 */
@@ -1541,7 +1508,7 @@ lpfc_nvme_fcp_abort(struct nvme_fc_local_port *pnvme_lport,
 
 	lpfc_nvmeio_data(phba, "NVME FCP ABORT: xri x%x idx %d to %06x\n",
 			 nvmereq_wqe->sli4_xritag,
-			 nvmereq_wqe->hba_wqidx, ndlp->nlp_DID);
+			 nvmereq_wqe->hba_wqidx, pnvme_rport->port_id);
 
 	/* Outstanding abort is in progress */
 	if (nvmereq_wqe->iocb_flag & LPFC_DRIVER_ABORTED) {