netdev - Re: [PATCH 4/13] cxgb3 - use immediate data for offload Tx

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Date:	Tue, 14 Aug 2007 16:25:32 -0700
From:	Divy Le Ray <divy@...lsio.com>
To:	Jeff Garzik <jeff@...zik.org>
CC:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	Steve Wise <swise@...ngridcomputing.com>
Subject: Re: [PATCH 4/13] cxgb3 - use immediate data for offload Tx

Jeff Garzik wrote:
>
> Divy Le Ray wrote:
> > From: Divy Le Ray <divy@...lsio.com>
> >
> > Send small TX_DATA work requests as immediate data even when
> > there are fragments.
> >
> > Signed-off-by: Divy Le Ray <divy@...lsio.com>
> > ---
> >
> >  drivers/net/cxgb3/sge.c |   17 +++++++++++------
> >  1 files changed, 11 insertions(+), 6 deletions(-)
>
> needs additional explanation.  don't just describe the new post-change
> behavior, describe why this change is needed.
>
>
It's an optimization avoiding doing multiple DMAs for small fragmented 
packets.
The driver already implements this optimization for small contiguous 
packets.

Divy
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