kern/141843: [em] [vlan] Intel txcsum and assigned vlan invoke
wrong dst MAC in TCP packets
Jean-Luc Richier
Jean-Luc.Richier at imag.fr
Wed Feb 24 09:40:03 UTC 2010
The following reply was made to PR kern/141843; it has been noted by GNATS.
From: Jean-Luc Richier <Jean-Luc.Richier at imag.fr>
To: bug-followup at FreeBSD.org, dyr at smartspb.net
Cc:
Subject: Re: kern/141843: [em] [vlan] Intel txcsum and assigned vlan invoke
wrong dst MAC in TCP packets
Date: Wed, 24 Feb 2010 10:35:01 +0100
Jean-Luc Richier wrote:
> A other cause (or the same) seems that when the interface is reset
(for example with a ifconfig em0 down, the chip is reset, but the
> last_hw_offload in the interface context is not reset
....
> I made the following path to solve the problem (in em_stop)
> --- /sys/dev/e1000/if_em.c.DIST 2009-10-25 02:10:29.000000000 +0100
> +++ /sys/dev/e1000/if_em.c 2010-02-23 18:22:53.000000000 +0100
...
> + adapter->last_hw_offload = 0;
...
I tested the suggested patch
http://people.freebsd.org/~yongari/em.csum_tso.20091230.patch
and it also solved my problem
Regards
--
Jean-Luc RICHIER (Jean-Luc.Richier at Imag.Fr)
Laboratoire d'Informatique de Grenoble (LIG)
Campus de Grenoble
681 rue de la Passerelle
BP 72, F-38402 St Martin d'Hères Cedex
Tel : +33 4 76 82 72 32 Fax : +33 4 76 82 72 87
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