Date: Sun, 15 Jan 2012 23:17:48 +0400 From: Andrey Zonov <andrey@zonov.org> To: freebsd-net@freebsd.org Subject: em loses link after IPMI reset Message-ID: <4F13265C.1040200@zonov.org>
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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
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