em loses link after IPMI reset

[Andrey Zonov]

Hi,

No, these are ASUS machines (Z8NR-D12 with ASMB4-iKVM).  My Supermicro 
machines have igb NICs, they don't lose link when BMC is resetting.

On 16.01.2012 22:05, Jason Wolfe wrote:
> 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 at zonov.org
> <mailto:andrey at 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
>
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>

-- 
Andrey Zonov