From mboxrd@z Thu Jan  1 00:00:00 1970
From: Or Gerlitz <or.gerlitz@gmail.com>
Subject: Re: [PATCH RFC] tun: export underlying socket
Date: Tue, 15 Sep 2009 16:11:22 +0300
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Cc: Or Gerlitz <ogerlitz@voltaire.com>,
	David Miller <davem@davemloft.net>, netdev@vger.kernel.org,
	herbert@gondor.apana.org.au
To: "Michael S. Tsirkin" <mst@redhat.com>
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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 t=
o
>> netif_rx which is then handled by the bridge
>> NIC RX=A0=A0goes to the bridge which xmits the packet a tun interfac=
e, 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 vi=
rtq

Or.