[dpdk-dev] [PATCH 0/2] vhost: fix VIRTIO_NET_F_MQ vhost_scsi breakage
Yuanhan Liu
yliu at fridaylinux.org
Thu Feb 1 15:46:48 CET 2018
On Wed, Jan 31, 2018 at 05:46:49PM +0000, 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
Series Acked-by: Yuanhan Liu <yliu at fridaylinux.org>
Thanks.
--yliu
>
> 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(-)
>
> --
> 2.14.3
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