[SCSI] bnx2i: Fixed a protocol violation on nopout responses

According to RFC3720, nopout packet sent in response to unsolicited
nopin packet requesting a response must retain the TTT of the requester.

Signed-off-by: Eddie Wai <eddie.wai@broadcom.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

drivers/scsi/bnx2i/bnx2i.h

@@ -753,7 +753,7 @@ extern int bnx2i_send_iscsi_tmf(struct bnx2i_conn *conn,
 extern int bnx2i_send_iscsi_scsicmd(struct bnx2i_conn *conn,
 				    struct bnx2i_cmd *cmnd);
 extern int bnx2i_send_iscsi_nopout(struct bnx2i_conn *conn,
-				   struct iscsi_task *mtask, u32 ttt,
+				   struct iscsi_task *mtask,
 				   char *datap, int data_len, int unsol);
 extern int bnx2i_send_iscsi_logout(struct bnx2i_conn *conn,
 				   struct iscsi_task *mtask);

drivers/scsi/bnx2i/bnx2i_hwi.c

@@ -464,7 +464,6 @@ int bnx2i_send_iscsi_scsicmd(struct bnx2i_conn *bnx2i_conn,
  * @conn:		iscsi connection
  * @cmd:		driver command structure which is requesting
  *			a WQE to sent to chip for further processing
- * @ttt:		TTT to be used when building pdu header
  * @datap:		payload buffer pointer
  * @data_len:		payload data length
  * @unsol:		indicated whether nopout pdu is unsolicited pdu or
@@ -473,7 +472,7 @@ int bnx2i_send_iscsi_scsicmd(struct bnx2i_conn *bnx2i_conn,
  * prepare and post a nopout request WQE to CNIC firmware
  */
 int bnx2i_send_iscsi_nopout(struct bnx2i_conn *bnx2i_conn,
-			    struct iscsi_task *task, u32 ttt,
+			    struct iscsi_task *task,
 			    char *datap, int data_len, int unsol)
 {
 	struct bnx2i_endpoint *ep = bnx2i_conn->ep;
@@ -498,7 +497,7 @@ int bnx2i_send_iscsi_nopout(struct bnx2i_conn *bnx2i_conn,
 	nopout_wqe->itt = ((u16)task->itt |
 			   (ISCSI_TASK_TYPE_MPATH <<
 			    ISCSI_TMF_REQUEST_TYPE_SHIFT));
-	nopout_wqe->ttt = ttt;
+	nopout_wqe->ttt = nopout_hdr->ttt;
 	nopout_wqe->flags = 0;
 	if (!unsol)
 		nopout_wqe->flags = ISCSI_NOP_OUT_REQUEST_LOCAL_COMPLETION;

drivers/scsi/bnx2i/bnx2i_iscsi.c

@@ -1078,11 +1078,9 @@ static int bnx2i_iscsi_send_generic_request(struct iscsi_task *task)
 		buf = bnx2i_conn->gen_pdu.req_buf;
 		if (data_len)
 			rc = bnx2i_send_iscsi_nopout(bnx2i_conn, task,
-						     RESERVED_ITT,
 						     buf, data_len, 1);
 		else
 			rc = bnx2i_send_iscsi_nopout(bnx2i_conn, task,
-						     RESERVED_ITT,
 						     NULL, 0, 1);
 		break;
 	case ISCSI_OP_LOGOUT: