On Sat, Jun 13, 2009 at 10:00:37PM +0930, Rusty Russell wrote:
>
> But re your comment that the 67 drivers using TX_BUSY are doing it because of
> driver bugs, that's hard to believe. It either hardly ever happens (in which
> case just drop the packet), or it happens (in which case we should handle it
> correctly).
Most of them just do this:
start_xmit:
if (unlikely(queue is full)) {
/* This should never happen. */
return TX_BUSY;
}
transmit
if (queue is full)
stop queue
Cheers,
--
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