netdev - Re: [PATCH 1/6] r8169: check dma mapping failures

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Message-ID: <20101018070114.GB2303@redhat.com>
Date:	Mon, 18 Oct 2010 09:01:15 +0200
From:	Stanislaw Gruszka <sgruszka@...hat.com>
To:	Denis Kirjanov <kirjanov@...il.com>
Cc:	Francois Romieu <romieu@...zoreil.com>, netdev@...r.kernel.org,
	"David S. Miller" <davem@...emloft.net>
Subject: Re: [PATCH 1/6] r8169: check dma mapping failures

On Fri, Oct 15, 2010 at 06:23:55PM +0400, Denis Kirjanov wrote:
> Right, we should pass TX_BUSY to upper layers only when the device hw
> queue is full
> 
> On Fri, Oct 15, 2010 at 5:41 PM, Francois Romieu <romieu@...zoreil.com> wrote:
> > Stanislaw Gruszka <sgruszka@...hat.com> :
> >> Check possible dma mapping errors and do clean up if it happens,
> >> when sending frames stop the tx queue.
> >
> > Almost ok: NETDEV_TX_BUSY can not be used like that. Afaik the DMA
> > failure path in the driver really wants a NETDEV_TX_OK (and a device
> > stats update, though missing in tg3 ?).

Ok, I will change that and repost on top of currently applied Eric's 
patch.

Stanislaw
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