[SCSI] lpfc 8.1.7: Fix txcmplq related panics on heavy IO while downloading firmware

Fix txcmplq related panics on heavy IO while downloading firmware

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 17 insertions, 7 deletions

diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 81755a3f7c68..2944eda1e907 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -1339,7 +1339,8 @@ lpfc_offline(struct lpfc_hba * phba)
         struct lpfc_sli_ring *pring;
         struct lpfc_sli *psli;
         unsigned long iflag;
-        int i = 0;
+        int i;
+        int cnt = 0;
 
         if (!phba)
                 return 0;
@@ -1348,17 +1349,26 @@ lpfc_offline(struct lpfc_hba * phba)
                 return 0;
 
         psli = &phba->sli;
-        pring = &psli->ring[psli->fcp_ring];
 
         lpfc_linkdown(phba);
 
-        /* The linkdown event takes 30 seconds to timeout. */
-        while (pring->txcmplq_cnt) {
-                mdelay(10);
-                if (i++ > 3000)
-                        break;
+        for (i = 0; i < psli->num_rings; i++) {
+                pring = &psli->ring[i];
+                /* The linkdown event takes 30 seconds to timeout. */
+                while (pring->txcmplq_cnt) {
+                        mdelay(10);
+                        if (cnt++ > 3000) {
+                                lpfc_printf_log(phba,
+                                        KERN_WARNING, LOG_INIT,
+                                        "%d:0466 Outstanding IO when "
+                                        "bringing Adapter offline\n",
+                                        phba->brd_no);
+                                break;
+                        }
+                }
         }
 
+
         /* stop all timers associated with this hba */
         lpfc_stop_timer(phba);
         phba->work_hba_events = 0;