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From: "Michael S. Tsirkin" <mst@redhat.com>
To: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Cc: dev@dpdk.org, Stephen Hemminger <stephen@networkplumber.org>,
	Maxime Coquelin <maxime.coquelin@redhat.com>
Subject: Re: [dpdk-dev] [PATCH 2/2] net/virtio: enable any layout feature
Date: Thu, 29 Sep 2016 21:01:53 +0300	[thread overview]
Message-ID: <20160929210110-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <20160929205815-mutt-send-email-mst@kernel.org>

On Thu, Sep 29, 2016 at 09:00:47PM +0300, Michael S. Tsirkin wrote:
> On Mon, Sep 26, 2016 at 02:40:56PM +0800, Yuanhan Liu wrote:
> > The feature VIRTIO_F_ANY_LAYOUT was actually supported by commit
> > dd856dfcb9e7 ("virtio: use any layout on Tx"). But it's not enabled.
> > Here this patch enables it.
> > 
> > Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
> 
> Well this will break cross-version migration if just done
> unconditionally.
> Let's add a protocol feature for this bugfix?

Hmm OTOH the bug is in dpdk not qemu ... this needs some thought.

> > ---
> >  drivers/net/virtio/virtio_ethdev.h | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/drivers/net/virtio/virtio_ethdev.h b/drivers/net/virtio/virtio_ethdev.h
> > index 04d626b..3e31e6a 100644
> > --- a/drivers/net/virtio/virtio_ethdev.h
> > +++ b/drivers/net/virtio/virtio_ethdev.h
> > @@ -64,6 +64,7 @@
> >  	 1u << VIRTIO_NET_F_CTRL_VLAN	  |	\
> >  	 1u << VIRTIO_NET_F_MRG_RXBUF	  |	\
> >  	 1u << VIRTIO_RING_F_INDIRECT_DESC |    \
> > +	 1u << VIRTIO_F_ANY_LAYOUT |    \
> >  	 1ULL << VIRTIO_F_VERSION_1)
> >  
> >  /*
> > -- 
> > 1.9.0

  reply	other threads:[~2016-09-29 18:01 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-26  6:40 [dpdk-dev] [PATCH 0/2] enables vhost/virtio " Yuanhan Liu
2016-09-26  6:40 ` [dpdk-dev] [PATCH 1/2] vhost: enable " Yuanhan Liu
2016-09-26 18:01   ` Stephen Hemminger
2016-09-26 19:24     ` Michael S. Tsirkin
2016-09-27  3:11       ` Yuanhan Liu
2016-09-27 19:48         ` Stephen Hemminger
2016-09-27 19:56         ` Michael S. Tsirkin
2016-09-28  2:28           ` Yuanhan Liu
2016-09-29 15:30             ` [dpdk-dev] [Qemu-devel] " Maxime Coquelin
2016-09-29 17:57               ` Michael S. Tsirkin
2016-09-29 20:05                 ` Maxime Coquelin
2016-09-29 20:21                   ` Michael S. Tsirkin
2016-09-29 21:23                     ` Maxime Coquelin
2016-09-30 12:05                       ` Maxime Coquelin
2016-09-30 19:16                         ` Michael S. Tsirkin
2016-10-10  4:05                           ` Yuanhan Liu
2016-10-10  4:17                             ` Michael S. Tsirkin
2016-10-10  4:22                               ` Yuanhan Liu
2016-10-10  4:25                                 ` Michael S. Tsirkin
2016-10-10 12:40                                 ` Maxime Coquelin
2016-10-10 14:42                                   ` Yuanhan Liu
2016-10-10 14:54                                     ` Maxime Coquelin
2016-10-11  6:04                                       ` Yuanhan Liu
2016-10-11  6:39                                         ` Maxime Coquelin
2016-10-11  6:49                                           ` Yuanhan Liu
2016-10-03 14:20                     ` Maxime Coquelin
2016-10-10  3:37                     ` Yuanhan Liu
2016-10-10  3:46                       ` Michael S. Tsirkin
2016-10-10  3:59                         ` Yuanhan Liu
2016-10-10  4:16                           ` Wang, Zhihong
2016-10-10  4:24                             ` Michael S. Tsirkin
2016-10-10  4:39                             ` Michael S. Tsirkin
2016-10-11  6:57                               ` Yuanhan Liu
2016-10-12  3:21                                 ` Yuanhan Liu
     [not found]                                   ` <F5DF4F0E3AFEF648ADC1C3C33AD4DBF16C2409EB@SHSMSX101.ccr.corp.intel.com>
2016-10-13  2:52                                     ` Yang, Zhiyong
2016-10-10  3:50                   ` Yuanhan Liu
2016-10-09 23:20             ` [dpdk-dev] " Michael S. Tsirkin
2016-10-10  3:03               ` Yuanhan Liu
2016-10-10  3:04                 ` Michael S. Tsirkin
2016-10-10  3:10                   ` Yuanhan Liu
2016-09-26  6:40 ` [dpdk-dev] [PATCH 2/2] net/virtio: " Yuanhan Liu
2016-09-26 18:04   ` Stephen Hemminger
2016-09-29 18:00   ` Michael S. Tsirkin
2016-09-29 18:01     ` Michael S. Tsirkin [this message]
2016-11-10 15:18 ` [dpdk-dev] [PATCH 0/2] enables vhost/virtio " Michael S. Tsirkin

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