Yo Richard!

On Thu, 26 Feb 2015 10:08:05 +0100
Richard Cochran <richardcoch...@gmail.com> wrote:

> On Thu, Feb 26, 2015 at 12:18:48AM -0800, Gary E. Miller wrote:
> > So the three I have on the recommmended list are not good?  Yeah, I
> > gotta agree.
> 
> You have these three, I217-LM, 82574, and I210?
> 
> - I217-LM   HW bug
> - 82574     not a great ptp design
> - I210      best PCIe card I have tried

Yup.  And my hardware timestamping experience:

  - I217-LM   HW bug
  - 82574     6 mSec or worse jitter
  - I210      300 to 900 mSec persistent offset


> > Any idea what a suitable card may be?
> In my experience, the two best Intel cards are the 82580 and the
> i210.

Well, i210 not working so well or me.

>  The i210 has HW inputs and outputs on a 6 pin header.  That
> opens up some interesting applications.

Hmm, I just checked the docs on my Supermicro X10SAE.  Not such header.

I guess I'll order an 82580...

RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97701
        g...@rellim.com  Tel:+1(541)382-8588

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