netdev - Re: [PATCH] Better MWI workaround for 21143 rev 65 chip errata

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Message-ID: <48007A7F.7040109@garzik.org>
Date:	Sat, 12 Apr 2008 05:01:51 -0400
From:	Jeff Garzik <jeff@...zik.org>
To:	Thomas Bogendoerfer <tsbogend@...ha.franken.de>
CC:	netdev@...r.kernel.org, grundler@...isc-linux.org,
	kyle@...isc-linux.org, zero@...onel-panic.org
Subject: Re: [PATCH] Better MWI workaround for 21143 rev 65 chip errata

Thomas Bogendoerfer wrote:
> From: Peter Horton <zero@...onel-panic.org>
> 
> This patch works around the MWI bug on the DC21143 rev 65 Tulip by
> ensuring that the receive buffers don't end on a cache line boundary
> (as documented in the errata).
> 
> This patch is required for the MIPS based Cobalt Qube/RaQ as
> supporting the extra PCI commands seems to reduce the chance of a hard
> lockup between the Tulip and the PCI bridge.
> 
> Signed-off-by: Thomas Bogendoerfer <tsbogend@...ha.franken.de>
> ---
> 
>  drivers/net/tulip/tulip.h      |    7 ++++++-
>  drivers/net/tulip/tulip_core.c |   19 +++++--------------
>  2 files changed, 11 insertions(+), 15 deletions(-)

applied


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