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authorManish Rangankar <manish.rangankar@qlogic.com>2011-10-07 16:55:46 -0700
committerJames Bottomley <JBottomley@Parallels.com>2011-10-16 11:10:06 -0500
commit736cf369c9a514a9ed596e97375c49ef1fdf920a (patch)
tree1b5a9bd343152f315982125edd36a33f2c1b3fde /drivers/scsi/qla4xxx/ql4_init.c
parent166dd20d794e7885b23c8d5fc533949ed82cc337 (diff)
[SCSI] qla4xxx: Clear DDB map index on the basis of AEN.
Unable to login to session if login-logout issued consecutively for multiple sessions. Solution is to clear idx in DDB map on the basis of no-active connection asynchronous event (AEN). JIRA Key: UPSISCSI-135 Signed-off-by: Manish Rangankar <manish.rangankar@qlogic.com> Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/qla4xxx/ql4_init.c')
-rw-r--r--drivers/scsi/qla4xxx/ql4_init.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c
index 064a3a311e7..ca155bb9fd0 100644
--- a/drivers/scsi/qla4xxx/ql4_init.c
+++ b/drivers/scsi/qla4xxx/ql4_init.c
@@ -880,6 +880,10 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
if (ddb_entry == NULL) {
ql4_printk(KERN_ERR, ha, "%s: No ddb_entry at FW index [%d]\n",
__func__, fw_ddb_index);
+
+ if (state == DDB_DS_NO_CONNECTION_ACTIVE)
+ clear_bit(fw_ddb_index, ha->ddb_idx_map);
+
goto exit_ddb_event;
}
@@ -910,7 +914,8 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
}
break;
case DDB_DS_SESSION_ACTIVE:
- if (state == DDB_DS_SESSION_FAILED) {
+ switch (state) {
+ case DDB_DS_SESSION_FAILED:
/*
* iscsi_session failure will cause userspace to
* stop the connection which in turn would block the
@@ -919,6 +924,11 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
iscsi_session_failure(ddb_entry->sess->dd_data,
ISCSI_ERR_CONN_FAILED);
status = QLA_SUCCESS;
+ break;
+ case DDB_DS_NO_CONNECTION_ACTIVE:
+ clear_bit(fw_ddb_index, ha->ddb_idx_map);
+ status = QLA_SUCCESS;
+ break;
}
break;
default: