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Date:      Sun, 13 Nov 2011 19:22:07 +0100
From:      Willem Jan Withagen <wjw@digiware.nl>
To:        Joshua Boyd <boydjd@jbip.net>
Cc:        "stable@freebsd.org" <stable@freebsd.org>, "Vogel, Jack" <jack.vogel@intel.com>, Jeremy Chadwick <freebsd@jdc.parodius.com>
Subject:   Re: em0 watchdog timeout
Message-ID:  <4EC00ACF.4050803@digiware.nl>
In-Reply-To: <CAHcKe7kx1S=cR6S-14WGJXoL0S%2BRtTwuvmC6HYrgZ33FzxqtCg@mail.gmail.com>
References:  <4EBB97DF.3020803@digiware.nl> <20111110095041.GA73812@icarus.home.lan> <4EBBBACE.3020900@digiware.nl> <CAHcKe7kx1S=cR6S-14WGJXoL0S%2BRtTwuvmC6HYrgZ33FzxqtCg@mail.gmail.com>

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On 2011-11-10 23:25, Joshua Boyd wrote:
> On Thu, Nov 10, 2011 at 6:51 AM, Willem Jan Withagen <wjw@digiware.nl
> <mailto:wjw@digiware.nl>> wrote:
>
>     em0@pci0:0:25:0:        class=0x020000 card=0x10bd15d9
>     chip=0x10bd8086 rev=0x02 hdr=0x00
>         vendor     = 'Intel Corporation'
>         device     = 'Intel 82566DM Gigabit Ethernet Adapter (82566DM)'
>         class      = network
>         subclass   = ethernet
>         bar   [10] = type Memory, range 32, base 0xdf900000, size
>     131072, enabled
>         bar   [14] = type Memory, range 32, base 0xdf924000, size 4096,
>     enabled
>         bar   [18] = type I/O Port, range 32, base 0x1820, size 32, enabled
>         cap 01[c8] = powerspec 2  supports D0 D3  current D0
>         cap 05[d0] = MSI supports 1 message, 64 bit enabled with 1 message
>         cap 13[e0] = PCI Advanced Features: FLR TP
>
>
>     And note that this problem only raises it nasty head very few weeks...
>
>
> I have had the same problem, as shown here:
>
> http://lists.freebsd.org/pipermail/freebsd-stable/2011-June/063092.html
>
> According to your pciconf output, your card either doesn't support
> MSI-X, or you have MSI-X disabled.
>
> Check the hw.pci.enable_msix sysctl and make sure that it is set to 1.
> Also check to make sure there aren't any BIOS settings blocking MSI-X.
>
> Apparently the older Intel gigabit cards don't support MSI-X, and as
> such get starved.

Upgraded to a new bios, but that does not help either.

Now the trick question will be:
	IF I get a new servertype PCI-E ethernet card, would that get me
	an MSI-X ethernet device.

--WjW





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