On Wed, Jul 17, 2013 at 03:32:36PM +0930, Rusty Russell wrote:
> David Miller writes:
> > From: "Michael S. Tsirkin"
> > Date: Wed, 17 Jul 2013 08:00:32 +0300
> >
> >> On Tue, Jul 16, 2013 at 12:33:26PM -0700, David Miller wrote:
> >>> From: Rusty Russell
> >>> Date: Mon, 15 Jul 2013 11:13:25 +0
David Miller writes:
> From: "Michael S. Tsirkin"
> Date: Wed, 17 Jul 2013 08:00:32 +0300
>
>> On Tue, Jul 16, 2013 at 12:33:26PM -0700, David Miller wrote:
>>> From: Rusty Russell
>>> Date: Mon, 15 Jul 2013 11:13:25 +0930
>>>
>>> > From: Michael S. Tsirkin
>>> >
>>> > For small packets we ca
From: "Michael S. Tsirkin"
Date: Wed, 17 Jul 2013 08:00:32 +0300
> On Tue, Jul 16, 2013 at 12:33:26PM -0700, David Miller wrote:
>> From: Rusty Russell
>> Date: Mon, 15 Jul 2013 11:13:25 +0930
>>
>> > From: Michael S. Tsirkin
>> >
>> > For small packets we can simplify xmit processing
>> > by
On Tue, Jul 16, 2013 at 12:33:26PM -0700, David Miller wrote:
> From: Rusty Russell
> Date: Mon, 15 Jul 2013 11:13:25 +0930
>
> > From: Michael S. Tsirkin
> >
> > For small packets we can simplify xmit processing
> > by linearizing buffers with the header:
> > most packets seem to have enough h
David Miller writes:
> From: Rusty Russell
> Date: Mon, 15 Jul 2013 11:13:25 +0930
>
>> From: Michael S. Tsirkin
>>
>> 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.
>> Si
From: Rusty Russell
Date: Mon, 15 Jul 2013 11:13:25 +0930
> From: Michael S. Tsirkin
>
> 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 t
From: Michael S. Tsirkin
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.
Sign
"Michael S. Tsirkin" writes:
> On Tue, Jul 09, 2013 at 05:38:51PM +0930, Rusty Russell wrote:
>> "Michael S. Tsirkin" writes:
>> > On Tue, Jul 09, 2013 at 11:46:23AM +0930, Rusty Russell wrote:
>> >> "Michael S. Tsirkin" writes:
>> >> > For small packets we can simplify xmit processing
>> >> > b
"Michael S. Tsirkin" writes:
> On Tue, Jul 09, 2013 at 11:46:23AM +0930, Rusty Russell wrote:
>> "Michael S. Tsirkin" 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 thi
On Tue, Jul 09, 2013 at 11:46:23AM +0930, Rusty Russell wrote:
> "Michael S. Tsirkin" 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 hypervi
On Tue, Jul 09, 2013 at 05:38:51PM +0930, Rusty Russell wrote:
> "Michael S. Tsirkin" writes:
> > On Tue, Jul 09, 2013 at 11:46:23AM +0930, Rusty Russell wrote:
> >> "Michael S. Tsirkin" writes:
> >> > For small packets we can simplify xmit processing
> >> > by linearizing buffers with the header
From: Rusty Russell
Date: Tue, 09 Jul 2013 17:38:51 +0930
> If you convince DaveM, I won't object :)
Simplifications are great, but not when the merge window opens up.
Sorry, this isn't appropriate now.
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"Michael S. Tsirkin" writes:
> On Tue, Jul 09, 2013 at 11:46:23AM +0930, Rusty Russell wrote:
>> "Michael S. Tsirkin" 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 thi
On Tue, Jul 09, 2013 at 11:46:23AM +0930, Rusty Russell wrote:
> "Michael S. Tsirkin" 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 hypervi
"Michael S. Tsirkin" 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 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. Tsirk
On Fri, Jun 07, 2013 at 11:42:43AM +0930, Rusty Russell wrote:
> "Michael S. Tsirkin" 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 some older hyper
On Fri, Jun 07, 2013 at 10:52:01AM +0800, Jason Wang wrote:
> On 06/06/2013 05:55 PM, Michael S. Tsirkin wrote:
> > 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
"Michael S. Tsirkin" 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 some older hypervisors (e.g. qemu before version 1.5)
> required that header is the first s
On 06/06/2013 05:55 PM, Michael S. Tsirkin wrote:
> 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 some older hypervisors (e.g. qemu before version 1.5)
> required that h
On 06/06/2013 03:09 PM, Dave Jones wrote:
> On Thu, Jun 06, 2013 at 02:59:44PM -0500, Jesse Larrew wrote:
>
> > > pr_debug("%s: xmit %p %pM\n", vi->dev->name, skb, dest);
> > > +if (vi->mergeable_rx_bufs)
> > > +hdr_len = sizeof hdr->mhdr;
> > > +else
>
On Thu, Jun 06, 2013 at 02:59:44PM -0500, Jesse Larrew wrote:
> >pr_debug("%s: xmit %p %pM\n", vi->dev->name, skb, dest);
> > + if (vi->mergeable_rx_bufs)
> > + hdr_len = sizeof hdr->mhdr;
> > + else
> > + hdr_len = sizeof hdr->hdr;
>
> All conditionals need braces
Hi Michael!
On 06/06/2013 04:55 AM, Michael S. Tsirkin wrote:
> diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
> index c9e0038..d35a097 100644
> --- a/drivers/net/virtio_net.c
> +++ b/drivers/net/virtio_net.c
> @@ -106,6 +106,9 @@ struct virtnet_info {
> /* Has control virt
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 some older hypervisors (e.g. qemu before version 1.5)
required that header is the first s/g element,
we need a feature bit for thi
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