netdev - Re: [PATCH V5 2/6 net-next] netdevice.h: Add zero-copy flag in netdevice

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Message-ID: <1306437077.5180.9.camel@localhost.localdomain>
Date:	Thu, 26 May 2011 12:11:17 -0700
From:	Shirley Ma <mashirle@...ibm.com>
To:	"Michael S. Tsirkin" <mst@...hat.com>
Cc:	Michał Mirosław <mirqus@...il.com>,
	Ben Hutchings <bhutchings@...arflare.com>,
	David Miller <davem@...emloft.net>,
	Eric Dumazet <eric.dumazet@...il.com>,
	Avi Kivity <avi@...hat.com>, Arnd Bergmann <arnd@...db.de>,
	netdev@...r.kernel.org, kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH V5 2/6 net-next] netdevice.h: Add zero-copy flag in
 netdevice

On Thu, 2011-05-26 at 11:49 +0300, Michael S. Tsirkin wrote:
> > 
> > > - SG support
> > > - HIGHDMA support (on arches where this makes sense)
> > 
> > This can be checked by device flags.
> 
> OK, but pls note that SG can get turned off dynamically.

Tested the patch w/i SG dynmically on/off and tcpdump suspended.

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