Date: Fri, 5 Feb 2010 15:26:46 +0100 From: =?ISO-8859-1?Q?Ermal_Lu=E7i?= <eri@freebsd.org> To: FreeBSD Net <freebsd-net@freebsd.org> Cc: jfvogel@gmail.com, jfb@mr-happy.com Subject: Re: kern/141646: [em] em(4) + lagg(4) + vlan(4) generates ISL-tagged frames instead of 802.1q-tagged frames Message-ID: <9a542da31002050626i14da8c81m94e5e46f87edfc6d@mail.gmail.com> In-Reply-To: <2a41acea1001291447n5852f5b4h193d3ad6dff9faac@mail.gmail.com> References: <201001291920.o0TJKAw9005498@freefall.freebsd.org> <2a41acea1001291447n5852f5b4h193d3ad6dff9faac@mail.gmail.com>
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On Fri, Jan 29, 2010 at 11:47 PM, Jack Vogel <jfvogel@gmail.com> wrote: > What's with the encrypted messages entered in this bug suddenly? > > An important update - I have root caused this. Turns out its kinda > interesting. > The reason there is a problem is due to the stacked pseudo devices, since > the vlan device is on lagg, and not directly on em, the em driver is not > getting > the "event" of the vlan attachment, and thus the vlan hw filter routine is > never > run, that routine sets a CRITICAL bit in the control register which > differentiates > between ISL and 802 tags... and thus our failure :( > > The question now is what to do about this, I am thinking about this now.... > > Anybody interested can please try the patch at this location http://tinyurl.com/yk7qbtb. It is against 8-STABLE though should apply even to 8-RELEASE. Regards, -- Ermal
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