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From: Or Gerlitz <or.gerlitz@gmail.com>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Or Gerlitz <ogerlitz@voltaire.com>,
	David Miller <davem@davemloft.net>,
	netdev@vger.kernel.org, herbert@gondor.apana.org.au
Subject: Re: [PATCH RFC] tun: export underlying socket
Date: Tue, 15 Sep 2009 16:11:22 +0300	[thread overview]
Message-ID: <15ddcffd0909150611s2e172f19xa8abe794abf13159@mail.gmail.com> (raw)
In-Reply-To: <20090914154011.GB3556@redhat.com>

On 9/14/09, Michael S. Tsirkin <mst@redhat.com> wrote:
>> 3. for tun fd
>> VM.TX is translated by vhost to sendmsg which is translated by tun to
>> netif_rx which is then handled by the bridge
>> NIC RX  goes to the bridge which xmits the packet a tun interface, now
>> what makes tun provide this packet to vhost and how it is done?

> Same as above. vhost polls tun and calls recvmsg on the socket

no, correct if I'm wrong, but recvmsg calls tun_do_read and the later
calls tun_put_user to the packet goes to user space and not into the virtq

Or.

  reply	other threads:[~2009-09-15 13:11 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-09-10 12:59 [PATCH RFC] tun: export underlying socket Michael S. Tsirkin
2009-09-10 13:19 ` Eric Dumazet
2009-09-10 13:27   ` Michael S. Tsirkin
2009-09-11  4:17 ` Paul Moore
2009-09-11  4:59   ` Michael S. Tsirkin
2009-09-11  5:36     ` Michael S. Tsirkin
2009-09-11  6:10       ` Eric Dumazet
2009-09-11  9:44         ` Michael S. Tsirkin
2009-09-14  8:01       ` Or Gerlitz
2009-09-14  8:07 ` Or Gerlitz
2009-09-14  8:09   ` Michael S. Tsirkin
2009-09-14  8:17     ` Or Gerlitz
2009-09-14  9:11       ` Michael S. Tsirkin
2009-09-14  9:43         ` Or Gerlitz
2009-09-14 10:10           ` Michael S. Tsirkin
2009-09-14 14:06             ` Or Gerlitz
2009-09-14 15:03               ` Herbert Xu
2009-09-15 13:02                 ` Or Gerlitz
2009-09-15 13:31                   ` Herbert Xu
2009-09-14 15:40               ` Michael S. Tsirkin
2009-09-15 13:11                 ` Or Gerlitz [this message]
2009-09-15 13:18                   ` Michael S. Tsirkin
2009-11-02 17:20 ` [PATCHv2] " Michael S. Tsirkin
2009-11-03 15:10   ` Herbert Xu

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