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

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Message-ID: <1305588738.3456.65.camel@localhost.localdomain>
Date:	Mon, 16 May 2011 16:32:18 -0700
From:	Shirley Ma <mashirle@...ibm.com>
To:	"Michael S. Tsirkin" <mst@...hat.com>
Cc:	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

Hello Michael,

Looks like to use a new flag requires more time/work. I am thinking
whether we can just use HIGHDMA flag to enable zero-copy in macvtap to
avoid the new flag for now since mavctap uses real NICs as lower device?

Thanks
Shirley

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