Re: e1000 vlan functionality broken in 3.1

From: Jiri Pirko
Date: Mon Nov 21 2011 - 17:05:15 EST


Mon, Nov 21, 2011 at 08:28:39PM CET, jwboyer@xxxxxxxxxx wrote:
>Hi All,
>
>We've had a couple of reports of the e1000 driver no longer working with
>tagged VLANs in the 3.1 kernel. The bug report has much more detail
>here:
>
>https://bugzilla.redhat.com/show_bug.cgi?id=754589
>
>The summary is, if you turn of rxvlan and tx offloading, the driver
>seems to work fine with 3.1 again whereas this wasn't needed on 3.0.
>(Fedora calls 3.0 2.6.40 on Fedora 15, but that is strictly a naming
>thing.)
>
>Looking through the commit logs, 5622e4044a91 seems to be the most
>relevant commit between those versions. Does anyone have any ideas?


Looking at the patch again, I do not see anything suspicious. Plus the
bugzilla is talking about carrupting tx packets which is really odd. One
thing I can think of is if maybe VLAN tag inserting/striping and enable
VLAN receive filtering might be needed to be enabled/disabled together.
Intel guys should be able to tell.

Thanks.

Jirka

>
>josh
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