From: James Smart <jsmart2021@gmail.com>
Date: Tue, 12 Apr 2022 15:19:52 -0700
Subject: scsi: lpfc: Update fc_prli_sent outstanding only after guaranteed
IOCB submit
Patch-mainline: v5.19-rc1
Git-commit: 31e887864eb2c0cce3d0c448a7b1ef9792e850b7
References: bsc#1200045
If lpfc_sli_issue_iocb() fails, then the fc_prli_sent is never decremented.
Move the fc_prli_sent++ to after a guaranteed IOCB submit.
Link: https://lore.kernel.org/r/20220412222008.126521-11-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Daniel Wagner <dwagner@suse.de>
---
drivers/scsi/lpfc/lpfc_els.c | 29 +++++++++++------------------
1 file changed, 11 insertions(+), 18 deletions(-)
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -2571,16 +2571,6 @@ lpfc_issue_els_prli(struct lpfc_vport *v
phba->fc_stat.elsXmitPRLI++;
elsiocb->cmd_cmpl = lpfc_cmpl_els_prli;
- spin_lock_irq(&ndlp->lock);
- ndlp->nlp_flag |= NLP_PRLI_SND;
-
- /* The vport counters are used for lpfc_scan_finished, but
- * the ndlp is used to track outstanding PRLIs for different
- * FC4 types.
- */
- vport->fc_prli_sent++;
- ndlp->fc4_prli_sent++;
- spin_unlock_irq(&ndlp->lock);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Issue PRLI: did:x%x refcnt %d",
@@ -2588,16 +2578,25 @@ lpfc_issue_els_prli(struct lpfc_vport *v
elsiocb->context1 = lpfc_nlp_get(ndlp);
if (!elsiocb->context1) {
lpfc_els_free_iocb(phba, elsiocb);
- goto err;
+ return 1;
}
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
lpfc_nlp_put(ndlp);
- goto err;
+ return 1;
}
+ /* The vport counters are used for lpfc_scan_finished, but
+ * the ndlp is used to track outstanding PRLIs for different
+ * FC4 types.
+ */
+ spin_lock_irq(&ndlp->lock);
+ ndlp->nlp_flag |= NLP_PRLI_SND;
+ vport->fc_prli_sent++;
+ ndlp->fc4_prli_sent++;
+ spin_unlock_irq(&ndlp->lock);
/* The driver supports 2 FC4 types. Make sure
* a PRLI is issued for all types before exiting.
@@ -2607,12 +2606,6 @@ lpfc_issue_els_prli(struct lpfc_vport *v
goto send_next_prli;
else
return 0;
-
-err:
- spin_lock_irq(&ndlp->lock);
- ndlp->nlp_flag &= ~NLP_PRLI_SND;
- spin_unlock_irq(&ndlp->lock);
- return 1;
}
/**