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From: Rusty Russell <rusty@rustcorp.com.au>
To: "Michael S. Tsirkin" <mst@redhat.com>, netdev@vger.kernel.org
Cc: "David S. Miller" <davem@davemloft.net>,
	Jason Wang <jasowang@redhat.com>, Cong Wang <amwang@redhat.com>,
	Amos Kong <akong@redhat.com>, Dave Jones <davej@redhat.com>,
	virtualization@lists.linux-foundation.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] virtio-net: put virtio net header inline with data
Date: Tue, 09 Jul 2013 11:46:23 +0930	[thread overview]
Message-ID: <871u78eavc.fsf@rustcorp.com.au> (raw)
In-Reply-To: <20130708101259.GA16074@redhat.com>

"Michael S. Tsirkin" <mst@redhat.com> writes:
> For small packets we can simplify xmit processing
> by linearizing buffers with the header:
> most packets seem to have enough head room
> we can use for this purpose.
> Since existing hypervisors require that header
> is the first s/g element, we need a feature bit
> for this.
>
> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
> ---
>
> Note: this needs to be applied on top of patch
> defining VIRTIO_F_ANY_LAYOUT - bit to be
> selected by Rusty.
>
> The following patch should work for any definition of
> VIRTIO_F_ANY_LAYOUT - I used bit 31 for testing.
> Rusty, could you please pick a valid bit for VIRTIO_F_ANY_LAYOUT
> and squeeze this patch into 3.11?

Sorry, it's too late.

First, I've been a bit lax in sending patches via DaveM, and this is
definitely his territory (ie. more net than virtio).

Secondly, it needs baking and testing time.

Cheers,
Rusty.

WARNING: multiple messages have this Message-ID (diff)
From: Rusty Russell <rusty@rustcorp.com.au>
To: "Michael S. Tsirkin" <mst@redhat.com>, netdev@vger.kernel.org
Cc: Cong Wang <amwang@redhat.com>,
	linux-kernel@vger.kernel.org,
	virtualization@lists.linux-foundation.org,
	Dave Jones <davej@redhat.com>,
	"David S. Miller" <davem@davemloft.net>
Subject: Re: [PATCH] virtio-net: put virtio net header inline with data
Date: Tue, 09 Jul 2013 11:46:23 +0930	[thread overview]
Message-ID: <871u78eavc.fsf@rustcorp.com.au> (raw)
In-Reply-To: <20130708101259.GA16074@redhat.com>

"Michael S. Tsirkin" <mst@redhat.com> writes:
> For small packets we can simplify xmit processing
> by linearizing buffers with the header:
> most packets seem to have enough head room
> we can use for this purpose.
> Since existing hypervisors require that header
> is the first s/g element, we need a feature bit
> for this.
>
> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
> ---
>
> Note: this needs to be applied on top of patch
> defining VIRTIO_F_ANY_LAYOUT - bit to be
> selected by Rusty.
>
> The following patch should work for any definition of
> VIRTIO_F_ANY_LAYOUT - I used bit 31 for testing.
> Rusty, could you please pick a valid bit for VIRTIO_F_ANY_LAYOUT
> and squeeze this patch into 3.11?

Sorry, it's too late.

First, I've been a bit lax in sending patches via DaveM, and this is
definitely his territory (ie. more net than virtio).

Secondly, it needs baking and testing time.

Cheers,
Rusty.

  reply	other threads:[~2013-07-09  2:17 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-07-08 10:12 [PATCH] virtio-net: put virtio net header inline with data Michael S. Tsirkin
2013-07-08 10:12 ` Michael S. Tsirkin
2013-07-09  2:16 ` Rusty Russell [this message]
2013-07-09  2:16   ` Rusty Russell
2013-07-09  5:18   ` Michael S. Tsirkin
2013-07-09  5:18     ` Michael S. Tsirkin
2013-07-09  8:08     ` Rusty Russell
2013-07-09  8:08       ` Rusty Russell
2013-07-10  4:38       ` David Miller
2013-07-10  4:38         ` David Miller
2013-07-15  1:43         ` Rusty Russell
2013-07-15  1:43           ` Rusty Russell
2013-07-16 19:33           ` David Miller
2013-07-16 19:33             ` David Miller
2013-07-17  0:08             ` Rusty Russell
2013-07-17  0:08               ` Rusty Russell
2013-07-17  5:00             ` Michael S. Tsirkin
2013-07-17  5:00               ` Michael S. Tsirkin
2013-07-17  5:05               ` David Miller
2013-07-17  5:05                 ` David Miller
2013-07-17  6:02                 ` Rusty Russell
2013-07-17  6:02                   ` Rusty Russell
2013-07-24 19:44                   ` Michael S. Tsirkin
2013-07-24 19:44                     ` Michael S. Tsirkin
2013-07-10  6:14       ` Michael S. Tsirkin
2013-07-10  6:14         ` Michael S. Tsirkin
2013-07-15  1:40         ` Rusty Russell
2013-07-15  1:40           ` Rusty Russell
2013-07-11 13:00   ` Michael S. Tsirkin
2013-07-11 13:00     ` [Qemu-devel] " Michael S. Tsirkin
2013-07-11 13:00     ` Michael S. Tsirkin
2013-07-12  5:57     ` Rusty Russell
2013-07-12  5:57       ` [Qemu-devel] " Rusty Russell
2013-07-12  5:57       ` Rusty Russell
  -- strict thread matches above, loose matches on Subject: below --
2013-06-06  9:55 Michael S. Tsirkin
2013-06-06 19:59 ` [Qemu-devel] " Jesse Larrew
2013-06-06 20:09   ` Dave Jones
2013-06-06 20:18     ` Jesse Larrew
2013-06-07  2:12 ` Rusty Russell
2013-06-09  7:11   ` Michael S. Tsirkin
2013-06-09  7:11     ` Michael S. Tsirkin
2013-06-07  2:52 ` Jason Wang
2013-06-07  2:52   ` Jason Wang
2013-06-09  6:52   ` Michael S. Tsirkin
2013-06-09  6:52     ` Michael S. Tsirkin

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