2 files changed, 45 insertions, 30 deletions

diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c
index c4172791c267..b24fabbf20c4 100644
--- a/drivers/scsi/lpfc/lpfc_nportdisc.c
+++ b/drivers/scsi/lpfc/lpfc_nportdisc.c
@@ -47,6 +47,18 @@
 #include "lpfc_debugfs.h"
 
 
+/* Called to clear RSCN discovery flags when driver is unloading. */
+static bool
+lpfc_check_unload_and_clr_rscn(unsigned long *fc_flag)
+{
+	/* If unloading, then clear the FC_RSCN_DEFERRED flag */
+	if (test_bit(FC_UNLOADING, fc_flag)) {
+		clear_bit(FC_RSCN_DEFERRED, fc_flag);
+		return false;
+	}
+	return test_bit(FC_RSCN_DEFERRED, fc_flag);
+}
+
 /* Called to verify a rcv'ed ADISC was intended for us. */
 static int
 lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
@@ -213,8 +225,10 @@ void
 lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
 {
 	LIST_HEAD(abort_list);
+	LIST_HEAD(drv_cmpl_list);
 	struct lpfc_sli_ring *pring;
 	struct lpfc_iocbq *iocb, *next_iocb;
+	int retval = 0;
 
 	pring = lpfc_phba_elsring(phba);
 
@@ -250,11 +264,20 @@ lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
 
 	/* Abort the targeted IOs and remove them from the abort list. */
 	list_for_each_entry_safe(iocb, next_iocb, &abort_list, dlist) {
-			spin_lock_irq(&phba->hbalock);
-			list_del_init(&iocb->dlist);
-			lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL);
-			spin_unlock_irq(&phba->hbalock);
+		spin_lock_irq(&phba->hbalock);
+		list_del_init(&iocb->dlist);
+		retval = lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL);
+		spin_unlock_irq(&phba->hbalock);
+
+		if (retval && test_bit(FC_UNLOADING, &phba->pport->load_flag)) {
+			list_del_init(&iocb->list);
+			list_add_tail(&iocb->list, &drv_cmpl_list);
+		}
 	}
+
+	lpfc_sli_cancel_iocbs(phba, &drv_cmpl_list, IOSTAT_LOCAL_REJECT,
+			      IOERR_SLI_ABORTED);
+
 	/* Make sure HBA is alive */
 	lpfc_issue_hb_tmo(phba);
 
@@ -1604,10 +1627,8 @@ lpfc_device_recov_plogi_issue(struct lpfc_vport *vport,
 {
 	struct lpfc_hba  *phba = vport->phba;
 
-	/* Don't do anything that will mess up processing of the
-	 * previous RSCN.
-	 */
-	if (test_bit(FC_RSCN_DEFERRED, &vport->fc_flag))
+	/* Don't do anything that disrupts the RSCN unless lpfc is unloading. */
+	if (lpfc_check_unload_and_clr_rscn(&vport->fc_flag))
 		return ndlp->nlp_state;
 
 	/* software abort outstanding PLOGI */
@@ -1790,10 +1811,8 @@ lpfc_device_recov_adisc_issue(struct lpfc_vport *vport,
 {
 	struct lpfc_hba  *phba = vport->phba;
 
-	/* Don't do anything that will mess up processing of the
-	 * previous RSCN.
-	 */
-	if (test_bit(FC_RSCN_DEFERRED, &vport->fc_flag))
+	/* Don't do anything that disrupts the RSCN unless lpfc is unloading. */
+	if (lpfc_check_unload_and_clr_rscn(&vport->fc_flag))
 		return ndlp->nlp_state;
 
 	/* software abort outstanding ADISC */
@@ -2059,10 +2078,8 @@ lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport,
 				 void *arg,
 				 uint32_t evt)
 {
-	/* Don't do anything that will mess up processing of the
-	 * previous RSCN.
-	 */
-	if (test_bit(FC_RSCN_DEFERRED, &vport->fc_flag))
+	/* Don't do anything that disrupts the RSCN unless lpfc is unloading. */
+	if (lpfc_check_unload_and_clr_rscn(&vport->fc_flag))
 		return ndlp->nlp_state;
 
 	ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
@@ -2375,10 +2392,8 @@ lpfc_device_recov_prli_issue(struct lpfc_vport *vport,
 {
 	struct lpfc_hba  *phba = vport->phba;
 
-	/* Don't do anything that will mess up processing of the
-	 * previous RSCN.
-	 */
-	if (test_bit(FC_RSCN_DEFERRED, &vport->fc_flag))
+	/* Don't do anything that disrupts the RSCN unless lpfc is unloading. */
+	if (lpfc_check_unload_and_clr_rscn(&vport->fc_flag))
 		return ndlp->nlp_state;
 
 	/* software abort outstanding PRLI */
@@ -2894,10 +2909,8 @@ static uint32_t
 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 			   void *arg, uint32_t evt)
 {
-	/* Don't do anything that will mess up processing of the
-	 * previous RSCN.
-	 */
-	if (test_bit(FC_RSCN_DEFERRED, &vport->fc_flag))
+	/* Don't do anything that disrupts the RSCN unless lpfc is unloading. */
+	if (lpfc_check_unload_and_clr_rscn(&vport->fc_flag))
 		return ndlp->nlp_state;
 
 	lpfc_cancel_retry_delay_tmo(vport, ndlp);
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index a028e008dd1e..fa3d458af193 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -12361,10 +12361,10 @@ lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 
 	/* ELS cmd tag <ulpIoTag> completes */
 	lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
-			"0139 Ignoring ELS cmd code x%x completion Data: "
+			"0139 Ignoring ELS cmd code x%x ref cnt x%x Data: "
 			"x%x x%x x%x x%px\n",
-			ulp_command, ulp_status, ulp_word4, iotag,
-			cmdiocb->ndlp);
+			ulp_command, kref_read(&cmdiocb->ndlp->kref),
+			ulp_status, ulp_word4, iotag, cmdiocb->ndlp);
 	/*
 	 * Deref the ndlp after free_iocb. sli_release_iocb will access the ndlp
 	 * if exchange is busy.
@@ -12460,7 +12460,9 @@ lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 		}
 	}
 
-	if (phba->link_state < LPFC_LINK_UP ||
+	/* Just close the exchange under certain conditions. */
+	if (test_bit(FC_UNLOADING, &vport->load_flag) ||
+	    phba->link_state < LPFC_LINK_UP ||
 	    (phba->sli_rev == LPFC_SLI_REV4 &&
 	     phba->sli4_hba.link_state.status == LPFC_FC_LA_TYPE_LINK_DOWN) ||
 	    (phba->link_flag & LS_EXTERNAL_LOOPBACK))
@@ -12507,10 +12509,10 @@ abort_iotag_exit:
 	lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
 			 "0339 Abort IO XRI x%x, Original iotag x%x, "
 			 "abort tag x%x Cmdjob : x%px Abortjob : x%px "
-			 "retval x%x\n",
+			 "retval x%x : IA %d\n",
 			 ulp_context, (phba->sli_rev == LPFC_SLI_REV4) ?
 			 cmdiocb->iotag : iotag, iotag, cmdiocb, abtsiocbp,
-			 retval);
+			 retval, ia);
 	if (retval) {
 		cmdiocb->cmd_flag &= ~LPFC_DRIVER_ABORTED;
 		__lpfc_sli_release_iocbq(phba, abtsiocbp);