[SCSI] qla4xxx: Fix bidirectional CHAP.

Driver was not setting the bidirectional CHAP bit correctly in
the DDB entry.

JIRA Key: UPSISCSI-108
Signed-off-by: Lalit Chandivade <lalit.chandivade@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>

drivers/scsi/qla4xxx/ql4_def.h

@@ -351,6 +351,8 @@ struct ipaddress_config {
 
 #define QL4_CHAP_MAX_NAME_LEN 256
 #define QL4_CHAP_MAX_SECRET_LEN 100
+#define LOCAL_CHAP	0
+#define BIDI_CHAP	1
 
 struct ql4_chap_format {
 	u8  intr_chap_name[QL4_CHAP_MAX_NAME_LEN];

drivers/scsi/qla4xxx/ql4_mbx.c

@@ -872,7 +872,6 @@ void qla4xxx_get_conn_event_log(struct scsi_qla_host * ha)
 	uint32_t	max_event_log_entries;
 	uint8_t		i;
 
-
 	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 	memset(&mbox_sts, 0, sizeof(mbox_cmd));
 
@@ -1578,7 +1577,8 @@ int qla4xxx_set_param_ddbentry(struct scsi_qla_host *ha,
 			}
 
 			rval = qla4xxx_set_chap(ha, sess->username,
-						sess->password, idx, 0);
+						sess->password, idx,
+						LOCAL_CHAP);
 			if (rval)
 				goto exit_set_param;
 
@@ -1599,7 +1599,8 @@ int qla4xxx_set_param_ddbentry(struct scsi_qla_host *ha,
 				goto exit_set_param;
 			}
 			rval = qla4xxx_set_chap(ha, sess->username_in,
-						sess->password_in, idx, 0);
+						sess->password_in, idx,
+						BIDI_CHAP);
 			if (rval)
 				goto exit_set_param;
 		}