em driver - strange behavior

[Miroslav Slavkov]

The Card is external Intel Pro/1000 PT Server Adapter on PCI-Express slot.
  
  _____  

From: Jack Vogel [mailto:jfvogel at gmail.com]
To: Miroslav Slavkov [mailto:miroslav at svishtov.net]
Cc: freebsd-net at freebsd.org
Sent: Wed, 15 Nov 2006 18:24:28 +0200
Subject: Re: em driver - strange behavior

On 11/15/06, Miroslav Slavkov <miroslav at svishtov.net> wrote:
> Hi.
> I've posted some test with the latest em driver in the previous thread "Proposed 6.2 em RELEASE patch"...
> It's working fine.
>  Now i see some strange behavior. Machine is Dual Intel Xeon 5110, with  SuperMicro X7-DBE mainboard. It has dual port integrated Intel PRO/1000  EB lan card, one Intel 82542 Gigabit Ethernet Controller, and one Intel  PRO/1000 PT.
> The problem is the Intel PRO/1000 PT card. All  other cards are in use (in production mode), only this card is down and  not used right now, but it's generating more interrupts than any other  card.
>
> em3: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
>         options=b<RXCSUM,TXCSUM,VLAN_MTU>
>         ether 00:15:17:0e:10:90
>         media: Ethernet autoselect
>         status: no carrier
>
>
> output from systat -vm (interrupts/irq/interface):
>  14235 16: em3
>   6214 18: em0
>     914 19: em1
>  13613 24: em2
>
> currently it has around 200Mbit/s total bandwidth on the other cards
>
> system is: FreeBSD 6.2-PRERELEASE #1: Tue Nov 14 17:24:17 EET 2006 amd64
> EM_INTR_FAST is defined in em driver
> no polling
>
> Any clues?

Your description is a bit confusing, is this port ON the motherboard?
If its not in use by the OS but it still shows interrupts I'm suspecting
the management hardware maybe?

Jack
_______________________________________________
freebsd-net at freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-net
To unsubscribe, send any mail to "freebsd-net-unsubscribe at freebsd.org"