rl(4) TX_UNDERRUN fix

Joerg Sonnenberger joerg at britannica.bec.de
Mon Feb 21 11:45:17 PST 2005

On Mon, Feb 21, 2005 at 08:39:22PM +0100, Max Laier wrote:
> On Monday 21 February 2005 19:45, Joerg Sonnenberger wrote:
> > Hi all,
> > please test http://leaf.dragonflybsd.org/~joerg/if_rl.c.diff
> > with any kind of rl(4). This patch is a more aggressive version
> > of the recently commited patch in FreeBSD 5/6, the version
> > orginaly proposed in kern/61448.
> >
> > It shouldn't negatively impact performance or stability.
> I choose the less aggressive one for a (couple of) reason(s):
>  - not all chips can RL_TXCFG_CLRABRT some even forbid it in the specs.
>  - the ifp->if_opackets++ just isn't right. You should only increase it if you 
>  - removing the reset/init cycle *might* be a good thing, but only if you can 
> assure that it doesn't break the older chips.  Some notes in the specs 
> suggest different.

I know and I tried the other patch too. But it doesn't fix the hangs for me.
E.g. the card still got stuck in the TX state at random times.


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