From: Eric Dumazet <[EMAIL PROTECTED]>
Date: Sat, 14 Apr 2007 07:31:35 +0200
> When did tg3 model changed exactly ?
June of 2006:
commit 00b7050426da8e7e58c889c5c80a19920d2d41b3
Author: Michael Chan <[EMAIL PROTECTED]>
Date: Sat Jun 17 21:58:45 2006 -0700
[TG3]: Convert to non-LLTX
Herbert Xu pointed out that it is unsafe to call netif_tx_disable()
from LLTX drivers because it uses dev->xmit_lock to synchronize
whereas LLTX drivers use private locks.
Convert tg3 to non-LLTX to fix this issue. tg3 is a lockless driver
where hard_start_xmit and tx completion handling can run concurrently
under normal conditions. A tx_lock is only needed to prevent
netif_stop_queue and netif_wake_queue race condtions when the queue
is full.
So whether we use LLTX or non-LLTX, it makes practically no
difference.
Signed-off-by: Michael Chan <[EMAIL PROTECTED]>
Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
-
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
