Intel I340-T2 card question

[Dmitry Cherkassov]

Hi!

Could you say please will Intel I340-T2 eth adapter (that one for
IBM/System x) work with ordinary PC?

I'm going to need network card for UDP packets timestamping GSoC project.

Do you any other cards with that capability having NetBSD drivers?

Thank you!

--
With best regards,
Dmitry

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[David Young]

On Tue, May 03, 2011 at 01:32:06AM +0400, Dmitry Cherkassov wrote:
> Hi!
>
> Could you say please will Intel I340-T2 eth adapter (that one for
> IBM/System x) work with ordinary PC?

I don't think we have a driver for that adapter, yet.

> I'm going to need network card for UDP packets timestamping GSoC project.
>
> Do you any other cards with that capability having NetBSD drivers?

NICs supported by ath(4) and rtw(4) stamp received packets with the
microsecond received time. To calibrate the 802.11 TSF will be a
challenge.

Dave

--
David Young OJC Technologies
dyo...@ojctech.com Urbana, IL * (217) 344-0444 x24

[Alexander Nasonov]

David Young wrote:
> On Tue, May 03, 2011 at 01:32:06AM +0400, Dmitry Cherkassov wrote:
> > Hi!
> >
> > Could you say please will Intel I340-T2 eth adapter (that one for
> > IBM/System x) work with ordinary PC?
>
> I don't think we have a driver for that adapter, yet.

This commit

http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/dev/pci/if_wm.c?only_with_tag=MAIN#rev1.208

says "Tested on my own I340-T4".
T2 and T4 designate number of ports, AFAIK.

There is some support but it's worth asking msaitoh@ who wrote that
stuff.

Alex

[David Young]

On Tue, May 03, 2011 at 12:48:47AM +0100, Alexander Nasonov wrote:
> David Young wrote:
> > On Tue, May 03, 2011 at 01:32:06AM +0400, Dmitry Cherkassov wrote:
> > > Hi!
> > >
> > > Could you say please will Intel I340-T2 eth adapter (that one for
> > > IBM/System x) work with ordinary PC?
> >
> > I don't think we have a driver for that adapter, yet.
>
> This commit
>
> http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/dev/pci/if_wm.c?only_with_tag=MAIN#rev1.208
>
> says "Tested on my own I340-T4".
> T2 and T4 designate number of ports, AFAIK.

Someone told me that NetBSD operates the device in a wm(4) compatibility
mode that is described only in a Japanese-language datasheet. Perhaps
the timestamps are available even in the compatibility mode, though.

Dave

--
David Young OJC Technologies
dyo...@ojctech.com Urbana, IL * (217) 344-0444 x24

--

[Scott Solmonson]

According to IBM, this adapter is based on the well-supported Intel
GBE core used in X86 land everywhere on Allah's green Earth--
shouldn't "support" for it be largely a matter of nothing more than
some additional device-id string matching and potentially different
defaults?

-SS
--
NUNQUAM NON PARATUS

On Mon, May 2, 2011 at 8:06 PM, David Young <dyo...@pobox.com> wrote:
> On Tue, May 03, 2011 at 12:48:47AM +0100, Alexander Nasonov wrote:

>> David Young wrote:
>> > On Tue, May 03, 2011 at 01:32:06AM +0400, Dmitry Cherkassov wrote:
>> > > Hi!
>> > >
>> > > Could you say please will Intel I340-T2 eth adapter (that one for
>> > > IBM/System x) work with ordinary PC?
>> >
>> > I don't think we have a driver for that adapter, yet.
>>
>> This commit
>>
>> http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/dev/pci/if_wm.c?only_with_tag=MAIN#rev1.208
>>
>> says "Tested on my own I340-T4".
>> T2 and T4 designate number of ports, AFAIK.
>

> Someone told me that NetBSD operates the device in a wm(4) compatibility
> mode that is described only in a Japanese-language datasheet.  Perhaps
> the timestamps are available even in the compatibility mode, though.
>

> Dave
>
> --
> David Young             OJC Technologies
> dyo...@ojctech.com      Urbana, IL * (217) 344-0444 x24

--

[David Young]

On Mon, May 02, 2011 at 08:12:01PM -0700, Scott Solmonson wrote:
> According to IBM, this adapter is based on the well-supported Intel
> GBE core used in X86 land everywhere on Allah's green Earth--
> shouldn't "support" for it be largely a matter of nothing more than
> some additional device-id string matching and potentially different
> defaults?

I think you are right. I have confused it with some other adapter.

Dave

--
David Young OJC Technologies
dyo...@ojctech.com Urbana, IL * (217) 344-0444 x24

--

[David Arnold]

On 02/05/2011, at 5:32 PM, Dmitry Cherkassov wrote:

> Could you say please will Intel I340-T2 eth adapter (that one for
> IBM/System x) work with ordinary PC?
>
> I'm going to need network card for UDP packets timestamping GSoC project.
>
> Do you any other cards with that capability having NetBSD drivers?

The I340 cards are, I think, based on the i82580 chip. The i82576 chip also has timestamp support, although I was told recently it's not as good as the 82580.

d

[Hisashi T Fujinaka]

On Mon, 2 May 2011, David Arnold wrote:

> On 02/05/2011, at 5:32 PM, Dmitry Cherkassov wrote:
>
>> Could you say please will Intel I340-T2 eth adapter (that one for
>> IBM/System x) work with ordinary PC?
>>
>> I'm going to need network card for UDP packets timestamping GSoC project.
>>
>> Do you any other cards with that capability having NetBSD drivers?
>
> The I340 cards are, I think, based on the i82580 chip. The i82576 chip also has timestamp support, although I was told recently it's not as good as the 82580.

The I340 cards are based on the 82580, and yes, the timestamp support
has been improved. The datasheet (an all-in-one programming guide as
well now) should be available on http://www.intel.com/go/ethernet. Look
for the one for the actual Ethernet controller (the 82580). Make sure
you look at the Specification Update as well.

I was looking into updating the driver for several parts, but NetBSD
uses an older style of driver (unlike FreeBSD and Linux ) and it's
pretty opaque to me.

--
Hisashi T Fujinaka - ht...@twofifty.com
BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95) + MSCS(8/03) + $2.50 = latte