Re: Intel 82574L hang when sending short ethernet packets at 100BaseT

-----Original Message-----
From: kelvie@gmail.com [mailto:kelvie@gmail.com] On Behalf Of Kelvie Wong
Sent: Wednesday, August 29, 2012 1:17 PM
To: Dave, Tushar N
Cc: netdev@vger.kernel.org; e1000-devel@lists.sourceforge.net; Kelvie Wong
Subject: Re: Intel 82574L hang when sending short ethernet packets at
100BaseT

On Wed, Aug 29, 2012 at 1:13 PM, Dave, Tushar N [off-list ref]
wrote:

quoted

quoted

Anyway, here is the reproduction tool:

I see, "Adding enough zero pad bytes to bring frame size up to 17 bytes

causes the reset to no longer occur" - Is this true?

quoted

-Tushar

Yes, that is correct. We have been doing that ourselves as a workaround.

I'm already aware of this issue on PCI/PCI-X parts and e1000 SF driver does have this WA implemented. The patch for upstream e1000 driver is submitted too which will be accepted soon.
I will check with team and see if we need similar WA for PCIe part(s)!

-Tushar 
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