Date: Mon, 16 Jan 2012 11:05:27 -0700 From: Jason Wolfe <nitroboost@gmail.com> To: Andrey Zonov <andrey@zonov.org> Cc: freebsd-net@freebsd.org Subject: Re: em loses link after IPMI reset Message-ID: <CAAAm0r13sPtZR-Zwf8d2nL=qmCw_1QenPyuVEu-f1j=w2Kur-A@mail.gmail.com> In-Reply-To: <4F13265C.1040200@zonov.org> References: <4F13265C.1040200@zonov.org>
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Andrey, Are you running Supermicro hardware by chance? We had a very similar issue that was caused by a buggy version of the IPMI firmware on a good number of machines with the same 82574 chips. At any rate, might give the IPMI update a try and see if that changes the behavior at all. Jason On Sun, Jan 15, 2012 at 12:17 PM, Andrey Zonov <andrey@zonov.org> wrote: > Hi, > > I have a few boxes with Intel 82574L NIC that run under 8.2-STABLE. After > execution `ipmitool mc reset cold' NIC loses link and after negotiation it > sets 100TX media type (normal is 1000T). Under Linux on the same box this > problem doesn't occur, after BMC reset driver doesn't lose link. > > It seems that em driver sets (or doesn't set) some IPMI relied registers. > In Linux there is some magic about 82574/82583 chips and IPMI [1]. What > do you think this is a solution for my problem or this is about something > else? > > > [1] > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=blob;f=drivers/net/ethernet/intel/e1000e/netdev.c;h=3911401ed65d59ceafe9b28080a6630f4adf6371;hb=HEAD#l2696 > > -- > Andrey Zonov > > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >
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