Date: Mon, 25 Oct 2010 18:33:28 GMT From: yongari@FreeBSD.org To: freebsd@spam.t71.org, yongari@FreeBSD.org, freebsd-net@FreeBSD.org, yongari@FreeBSD.org Subject: Re: kern/147985: [alc] alc network driver + tso ( + vlan ? ) does not work. Message-ID: <201010251833.o9PIXSZ2062102@freefall.freebsd.org>
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Synopsis: [alc] alc network driver + tso ( + vlan ? ) does not work. State-Changed-From-To: open->feedback State-Changed-By: yongari State-Changed-When: Mon Oct 25 18:32:39 UTC 2010 State-Changed-Why: I can't reproduce this on my box with/without VLAN. I believe this is the first report that TSO issue on alc(4) and I have no idea how this can happen. The only vague guess I have at this moment is upper stack's TSO issue. r212803 fixed a TSO issue but it was not MFCed yet due to possible side-effects. http://svn.freebsd.org/viewvc/base/head/sys/netinet/tcp_output.c?r1=212765&r2=212803&view=patch Another thing to try is using alc(4) in stable/8. http://svn.freebsd.org/viewvc/base/stable/8/sys/dev/alc/if_alc.c http://svn.freebsd.org/viewvc/base/stable/8/sys/dev/alc/if_alcreg.h http://svn.freebsd.org/viewvc/base/stable/8/sys/dev/alc/if_alcvar.h I'm not sure whether it correctly builds on 8.1-RELEASE but mostly it would work. Responsible-Changed-From-To: freebsd-net->yongari Responsible-Changed-By: yongari Responsible-Changed-When: Mon Oct 25 18:32:39 UTC 2010 Responsible-Changed-Why: Grab. http://www.freebsd.org/cgi/query-pr.cgi?pr=147985
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