From: "Michał Mirosław" <mirqus@gmail.com>
To: Shirley Ma <mashirle@us.ibm.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>,
Ben Hutchings <bhutchings@solarflare.com>,
David Miller <davem@davemloft.net>,
Eric Dumazet <eric.dumazet@gmail.com>,
Avi Kivity <avi@redhat.com>, Arnd Bergmann <arnd@arndb.de>,
netdev@vger.kernel.org, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH V5 2/6 net-next] netdevice.h: Add zero-copy flag in netdevice
Date: Tue, 17 May 2011 23:48:21 +0200 [thread overview]
Message-ID: <BANLkTimvOK3tyo6+L5AD=so5DjiDPV-AAA@mail.gmail.com> (raw)
In-Reply-To: <1305588738.3456.65.camel@localhost.localdomain>
2011/5/17 Shirley Ma <mashirle@us.ibm.com>:
> 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?
Is there any other restriction besides requiring driver to not recycle
the skb? Are there any drivers that recycle TX skbs?
Best Regards,
Michał Mirosław
next prev parent reply other threads:[~2011-05-17 21:48 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-16 19:28 [PATCH V5 2/6 net-next] netdevice.h: Add zero-copy flag in netdevice Shirley Ma
2011-05-16 19:35 ` Ben Hutchings
2011-05-16 19:38 ` Shirley Ma
2011-05-16 19:47 ` Ben Hutchings
2011-05-16 21:14 ` Michael S. Tsirkin
2011-05-16 23:32 ` Shirley Ma
2011-05-17 6:21 ` Michael S. Tsirkin
2011-05-17 20:53 ` Shirley Ma
2011-05-17 21:48 ` Michał Mirosław [this message]
2011-05-17 22:28 ` Shirley Ma
2011-05-17 22:58 ` Michał Mirosław
2011-05-17 23:44 ` Shirley Ma
2011-05-18 9:06 ` Michał Mirosław
2011-05-18 10:38 ` Michael S. Tsirkin
2011-05-18 11:10 ` Michał Mirosław
2011-05-18 11:17 ` Michael S. Tsirkin
2011-05-18 11:40 ` Michał Mirosław
2011-05-18 11:47 ` Michael S. Tsirkin
2011-05-18 14:38 ` Shirley Ma
2011-05-18 15:47 ` Michael S. Tsirkin
2011-05-18 16:07 ` Shirley Ma
2011-05-18 16:36 ` Michael S. Tsirkin
2011-05-18 16:45 ` Shirley Ma
2011-05-18 16:51 ` Michael S. Tsirkin
2011-05-18 17:00 ` Shirley Ma
2011-05-19 19:42 ` Shirley Ma
2011-05-19 23:41 ` Michael S. Tsirkin
2011-05-25 22:49 ` Shirley Ma
2011-05-26 8:49 ` Michael S. Tsirkin
2011-05-26 15:27 ` Shirley Ma
2011-05-26 19:11 ` Shirley Ma
2011-05-18 16:02 ` Shirley Ma
2011-05-18 16:23 ` Michael S. Tsirkin
2011-05-18 16:50 ` Michael S. Tsirkin
2011-05-18 11:47 ` Michał Mirosław
2011-05-18 11:56 ` Michael S. Tsirkin
2011-05-18 12:48 ` Michał Mirosław
2011-05-18 13:19 ` Michael S. Tsirkin
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