tree 00e5edaaf2d51d406bea63afd26dc41748c193f2
parent 72b0a7a8a40a50cf2eab42fd6a56e04b05090434
author dhananjay@netxen.com <dhananjay@netxen.com> 1198693438 -0800
committer Jeff Garzik <jeff@garzik.org> 1200177338 -0500

netxen: optimize tx handling

netxen driver allows limited number of threads simultaneously posting
skb's in tx ring. If transmit slot is unavailable, driver calls
schedule() or loops in xmit_frame().

This patch returns TX_BUSY and lets the stack reschedule the packet if
transmit slot is unavailable. Also removes unnecessary check for tx
timeout in the driver itself, the network stack does that anyway.

Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>