[PATCH] vhost: Add VIRTIO_NET_F_RSC_EXT to vhost feature bits

[Akihiko Odaki]

VIRTIO_NET_F_RSC_EXT is implemented in the rx data path, which vhost
implements, so vhost needs to support the feature if it is ever to be
enabled with vhost. The feature must be disabled otherwise.

Fixes: 2974e916df87 ("virtio-net: support RSC v4/v6 tcp traffic for Windows 
HCK")
Reported-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
 hw/net/vhost_net.c | 2 ++
 net/vhost-vdpa.c   | 1 +
 2 files changed, 3 insertions(+)

diff --git a/hw/net/vhost_net.c b/hw/net/vhost_net.c
index a788e6937e03..dedf9ad7c242 100644
--- a/hw/net/vhost_net.c
+++ b/hw/net/vhost_net.c
@@ -50,6 +50,7 @@ static const int kernel_feature_bits[] = {
     VIRTIO_F_RING_RESET,
     VIRTIO_F_IN_ORDER,
     VIRTIO_F_NOTIFICATION_DATA,
+    VIRTIO_NET_F_RSC_EXT,
     VIRTIO_NET_F_HASH_REPORT,
     VHOST_INVALID_FEATURE_BIT
 };
@@ -81,6 +82,7 @@ static const int user_feature_bits[] = {
     VIRTIO_F_RING_RESET,
     VIRTIO_F_IN_ORDER,
     VIRTIO_NET_F_RSS,
+    VIRTIO_NET_F_RSC_EXT,
     VIRTIO_NET_F_HASH_REPORT,
     VIRTIO_NET_F_GUEST_USO4,
     VIRTIO_NET_F_GUEST_USO6,
diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c
index 03457ead663a..46b02c50be8c 100644
--- a/net/vhost-vdpa.c
+++ b/net/vhost-vdpa.c
@@ -88,6 +88,7 @@ const int vdpa_feature_bits[] = {
     VIRTIO_NET_F_MQ,
     VIRTIO_NET_F_MRG_RXBUF,
     VIRTIO_NET_F_MTU,
+    VIRTIO_NET_F_RSC_EXT,
     VIRTIO_NET_F_RSS,
     VIRTIO_NET_F_STATUS,
     VIRTIO_RING_F_EVENT_IDX,

---
base-commit: 31669121a01a14732f57c49400bc239cf9fd505f
change-id: 20240802-rsc-e90fb452bd7f

Best regards,
-- 
Akihiko Odaki <akihiko.odaki@daynix.com>