From: Zoltan Kiss
Date: Wed, 2 Apr 2014 18:04:58 +0100
> An old inefficiency of the TX path that we are grant mapping the first slot,
> and then copy the header part to the linear area. Instead, doing a grant copy
> for that header straight on is more reasonable. Especially because there are
> on
ernel.org;
> > Jonathan Davies; Zoltan Kiss
> > Subject: [PATCH net-next v3 2/2] xen-netback: Grant copy the header
> > instead of map and memcpy
> >
> > An old inefficiency of the TX path that we are grant mapping the first slot,
> > and then copy the header part
> -Original Message-
> From: Zoltan Kiss
> Sent: 02 April 2014 18:05
> To: Ian Campbell; Wei Liu; xen-de...@lists.xenproject.org
> Cc: Paul Durrant; net...@vger.kernel.org; linux-kernel@vger.kernel.org;
> Jonathan Davies; Zoltan Kiss
> Subject: [PATCH net-next v3 2/
An old inefficiency of the TX path that we are grant mapping the first slot,
and then copy the header part to the linear area. Instead, doing a grant copy
for that header straight on is more reasonable. Especially because there are
ongoing efforts to make Xen avoiding TLB flush after unmap when the
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