[dpdk-dev] [PATCH 0/2] vhost: fix VIRTIO_NET_F_MQ vhost_scsi breakage
Stefan Hajnoczi
stefanha at redhat.com
Wed Jan 31 18:46:49 CET 2018
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(-)
--
2.14.3
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