[openib-general] Re: LLTX and netif_stop_queue

[Jamal Hadi Salim]

On Sun, 2004-12-19 at 14:54, jamal wrote:
> On Sun, 2004-12-19 at 14:31, jamal wrote:
> 
> > How about releasing the qlock only when the LLTX transmit lock is
> > grabbed? That should bring it to par with what it was originally.
> 
> Something like two attached patches... one showing how to do it for
> e1000. untested (not even compiled)

After attempting to compile, p2 take2.

cheers,
jamal
-------------- next part --------------
--- 2610-rc3-bk12/drivers/net/e1000/bak.e1000_main.c	2004-12-19 13:50:59.000000000 -0500
+++ 2610-rc3-bk12/drivers/net/e1000/e1000_main.c	2004-12-19 13:58:17.000000000 -0500
@@ -1809,6 +1809,10 @@
  		return NETDEV_TX_LOCKED; 
  	} 
 
+	/* new from sch_generic for LLTX */
+	spin_unlock(&netdev->queue_lock);
+	netdev->xmit_lock_owner = smp_processor_id();
+
 	/* need: count + 2 desc gap to keep tail from touching
 	 * head, otherwise try next time */
 	if(E1000_DESC_UNUSED(&adapter->tx_ring) < count + 2) {