[SCSI] lpfc 8.3.39: Fixed bad book keeping in posting els sgls to port

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index c37e704..b78244a 100644 (file)
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -6000,7 +6000,7 @@ lpfc_sli4_repost_els_sgl_list(struct lpfc_hba *phba)
        struct lpfc_sglq *sglq_entry = NULL;
        struct lpfc_sglq *sglq_entry_next = NULL;
        struct lpfc_sglq *sglq_entry_first = NULL;
-       int status, post_cnt = 0, num_posted = 0, block_cnt = 0;
+       int status, total_cnt, post_cnt = 0, num_posted = 0, block_cnt = 0;
        int last_xritag = NO_XRI;
        LIST_HEAD(prep_sgl_list);
        LIST_HEAD(blck_sgl_list);
@@ -6012,6 +6012,7 @@ lpfc_sli4_repost_els_sgl_list(struct lpfc_hba *phba)
        list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &allc_sgl_list);
        spin_unlock_irq(&phba->hbalock);
 
+       total_cnt = phba->sli4_hba.els_xri_cnt;
        list_for_each_entry_safe(sglq_entry, sglq_entry_next,
                                 &allc_sgl_list, list) {
                list_del_init(&sglq_entry->list);
@@ -6063,9 +6064,7 @@ lpfc_sli4_repost_els_sgl_list(struct lpfc_hba *phba)
                                                sglq_entry->sli4_xritag);
                                        list_add_tail(&sglq_entry->list,
                                                      &free_sgl_list);
-                                       spin_lock_irq(&phba->hbalock);
-                                       phba->sli4_hba.els_xri_cnt--;
-                                       spin_unlock_irq(&phba->hbalock);
+                                       total_cnt--;
                                }
                        }
                }
@@ -6093,9 +6092,7 @@ lpfc_sli4_repost_els_sgl_list(struct lpfc_hba *phba)
                                        (sglq_entry_first->sli4_xritag +
                                         post_cnt - 1));
                        list_splice_init(&blck_sgl_list, &free_sgl_list);
-                       spin_lock_irq(&phba->hbalock);
-                       phba->sli4_hba.els_xri_cnt -= post_cnt;
-                       spin_unlock_irq(&phba->hbalock);
+                       total_cnt -= post_cnt;
                }
 
                /* don't reset xirtag due to hole in xri block */
@@ -6105,6 +6102,8 @@ lpfc_sli4_repost_els_sgl_list(struct lpfc_hba *phba)
                /* reset els sgl post count for next round of posting */
                post_cnt = 0;
        }
+       /* update the number of XRIs posted for ELS */
+       phba->sli4_hba.els_xri_cnt = total_cnt;
 
        /* free the els sgls failed to post */
        lpfc_free_sgl_list(phba, &free_sgl_list);