bnx2x: stop tx before CNIC_STOP

It may take some time to cnic to respond, this prevents tx_timeout
when it happens.
Signed-off-by: NDmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: NEilon Greenstein <eilong@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/bnx2x/bnx2x_cmn.c

@@ -1989,6 +1989,9 @@ int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode)
 		return -EINVAL;
 	}
 
+	/* Stop Tx */
+	bnx2x_tx_disable(bp);
+
 #ifdef BCM_CNIC
 	bnx2x_cnic_notify(bp, CNIC_CTL_STOP_CMD);
 #endif
@@ -1997,9 +2000,6 @@ int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode)
 
 	bp->rx_mode = BNX2X_RX_MODE_NONE;
 
-	/* Stop Tx */
-	bnx2x_tx_disable(bp);
-
 	del_timer_sync(&bp->timer);
 
 	/* Set ALWAYS_ALIVE bit in shmem */