[dpdk-dev] [PATCH v3 01/11] lib/librte_vhost: enable VIRTIO_NET_F_CTRL_RX VIRTIO_NET_F_CTRL_RX is dependant on VIRTIO_NET_F_CTRL_VQ. Observed that virtio-net driver in guest would crash with only CTRL_RX enabled.

[Przemyslaw Czesnowicz]

From: "Xie, Huawei" <huawei....@intel.com>

In virtnet_send_command:

        /* Caller should know better */
        BUG_ON(!virtio_has_feature(vi->vdev, VIRTIO_NET_F_CTRL_VQ) ||
                (out + in > VIRTNET_SEND_COMMAND_SG_MAX));

Signed-off-by: Huawei Xie <huawei.xie at intel.com>
---
 lib/librte_vhost/virtio-net.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/librte_vhost/virtio-net.c b/lib/librte_vhost/virtio-net.c
index b041849..52b4957 100644
--- a/lib/librte_vhost/virtio-net.c
+++ b/lib/librte_vhost/virtio-net.c
@@ -73,7 +73,8 @@ static struct virtio_net_config_ll *ll_root;

 /* Features supported by this lib. */
 #define VHOST_SUPPORTED_FEATURES ((1ULL << VIRTIO_NET_F_MRG_RXBUF) | \
-                                 (1ULL << VIRTIO_NET_F_CTRL_RX))
+                               (1ULL << VIRTIO_NET_F_CTRL_VQ) | \
+                               (1ULL << VIRTIO_NET_F_CTRL_RX))
 static uint64_t VHOST_FEATURES = VHOST_SUPPORTED_FEATURES;

 /* Line size for reading maps file. */
-- 
1.9.3