Bug#516382: tg3: Corrupted MAC on input and scatter gather

[Moritz Muehlenhoff <jmm@inutil.org>]

On Sat, May 09, 2009 at 03:39:08PM -0700, Gabriele Gorla wrote:
> Package: linux-image-2.6.26-2-alpha-generic
> Version: 2.6.26-15
> Followup-For: Bug #516382
> 
> vanilla kernel 2.6.29 does not work as well.
> 
> However, disabling scatter gather with ethtool seems to make the issue
> disappear.
> 
> ethtool -K ethX sg off
> 
> this may help in narrowing down the issue to a specific part of the
> driver.
> 
> as a side note, ethtool complains about device flags (I have not seen
> this on a different tg3 supported card I own).
> 
> # ethtool -k eth0
> Offload parameters for eth0:
> Cannot get device flags: Operation not supported
> rx-checksumming: on
> tx-checksumming: on
> scatter-gather: off
> tcp segmentation offload: off
> udp fragmentation offload: off
> generic segmentation offload: on
> large receive offload: off

Could you please try to reproduce this with a 2.6.31 build and report the
problem upstream through http://bugzilla.kernel.org ? Upstream should look
into this if the problem persists.

Cheers,
        Moritz