[dpdk-dev] [PATCH 0/2] vhost: fix VIRTIO_NET_F_MQ vhost_scsi breakage

[Maxime Coquelin]

On 01/31/2018 06:46 PM, Stefan Hajnoczi wrote:
> These patches fix a recent regression in librte_vhost that breaks the
> vhost_scsi example application.  vhost_user.c assumes all devices are vhost net
> backends when handling the VIRTIO_NET_F_MQ feature bit.  The code is triggered
> by vhost scsi devices and causes virtqueues to be removed.  See Patch 2 for
> details.
> 
> Patch 1 puts the infrastructure in place to distinguish between the built-in
> virtio_net.c driver and generic vhost device backend usage.
> 
> Patch 2 fixes the regression by handling VIRTIO_NET_F_MQ only when the built-in
> virtio_net.c driver is in use.
> 
> Stefan Hajnoczi (2):
>    vhost: add flag for built-in virtio_net.c driver
>    vhost: only drop vqs with built-in virtio_net.c driver
> 
>   lib/librte_vhost/vhost.h      |  3 +++
>   lib/librte_vhost/socket.c     | 15 +++++++++++++++
>   lib/librte_vhost/vhost.c      | 17 ++++++++++++++++-
>   lib/librte_vhost/vhost_user.c |  3 ++-
>   lib/librte_vhost/virtio_net.c | 14 ++++++++++++++
>   5 files changed, 50 insertions(+), 2 deletions(-)
> 

For the series:
Reviewed-by: Maxime Coquelin <maxime.coquelin at redhat.com>

Thanks,
Maxime