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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_os.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_os.c')
-rw-r--r--drivers/scsi/qla4xxx/ql4_os.c11
1 files changed, 3 insertions, 8 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 5266d97640c..bea78a7f6bc 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -1004,6 +1004,7 @@ qla4xxx_session_create(struct iscsi_endpoint *ep,
qla_ep = ep->dd_data;
dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
ha = to_qla_host(qla_ep->host);
+
get_ddb_index:
ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES);
@@ -1063,6 +1064,8 @@ static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess)
ddb_entry = sess->dd_data;
ha = ddb_entry->ha;
+ qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
+
spin_lock_irqsave(&ha->hardware_lock, flags);
qla4xxx_free_ddb(ha, ddb_entry);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
@@ -1183,14 +1186,6 @@ static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn)
options = LOGOUT_OPTION_CLOSE_SESSION;
if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR)
ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);
- else
- qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
-
- /*
- * Clear the DDB bit so that next login can use the bit
- * if FW is not clearing the DDB entry then set DDB will fail anyways
- */
- clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map);
}
static void qla4xxx_task_work(struct work_struct *wdata)