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Message-ID: <1337016890.3851.20.camel@oc3660625478.ibm.com> Date: Mon, 14 May 2012 10:34:50 -0700 From: Shirley Ma <mashirle@...ibm.com> To: "Michael S. Tsirkin" <mst@...hat.com> Cc: "David S. Miller" <davem@...emloft.net>, Stephen Hemminger <shemminger@...tta.com>, Joe Perches <joe@...ches.com>, Jason Wang <jasowang@...hat.com>, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, Ian.Campbell@...rix.com, kvm@...r.kernel.org Subject: Re: [PATCH RFC] tun: experimental zero copy tx support On Sun, 2012-05-13 at 18:52 +0300, Michael S. Tsirkin wrote: > Let vhost-net utilize zero copy tx when the experimental > zero copy mode is enabled and when used with tun. This works on > top of the patchset 'copy aside frags with destructors' that I posted > previously. This is not using tcp so doesn't have the > issue with early skb cloning noticed by Ian. > > For those that wish to test this with kvm, I intend to post a patchset > + > git tree with just the necessary bits from the destructor patch > a bit later. > > Signed-off-by: Michael S. Tsirkin <mst@...hat.com> Hello Mike, Have you tested this patch? I think the difference between macvtap and tap is tap forwarding the packet to bridge. The zerocopy is disabled in this case. Shirley -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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