netdev - RE: [PATCH v2 00/10] Low-level Ethernet debugging features.

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Date:	Fri, 10 Feb 2012 13:45:10 -0000
From:	"David Laight" <David.Laight@...LAB.COM>
To:	"Eric Dumazet" <eric.dumazet@...il.com>,
	"Ben Greear" <greearb@...delatech.com>
Cc:	<jeffrey.t.kirsher@...el.com>, "Jeff Kirsher" <tarbal@...il.com>,
	<netdev@...r.kernel.org>
Subject: RE: [PATCH v2 00/10] Low-level Ethernet debugging features.

 
> > I was thinking I might could get at least some NICs to generate Runt
frames
> > by sending small pkts and disabling frame padding, but haven't
looked into
> > it too hard yet.
> 
> I am interested by this, do you know some NICs able to disable frame
> padding ?

I'm reasonably sure some old NICs like the AMD lance will send runts.
Quite likely any that require the drives to set the padded frame length.

The same will be true when semi-generic HDLC controllers are used
to send packets from DSPs, FPGAs and SOCs.

	David


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