[dpdk-stable] [PATCH 09/15] net/virtio: add virtio vDPA op to get protocol features

[Maxime Coquelin <maxime.coquelin@redhat.com>]

This patch implements the vDPA .get_protocol_features()
callback.

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
 drivers/net/virtio/virtio_vdpa.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/net/virtio/virtio_vdpa.c b/drivers/net/virtio/virtio_vdpa.c
index 9e2af8313..fc52a8e92 100644
--- a/drivers/net/virtio/virtio_vdpa.c
+++ b/drivers/net/virtio/virtio_vdpa.c
@@ -204,9 +204,22 @@ virtio_vdpa_get_features(int did, uint64_t *features)
 	return 0;
 }
 
+#define VDPA_SUPPORTED_PROTOCOL_FEATURES \
+		(1ULL << VHOST_USER_PROTOCOL_F_REPLY_ACK | \
+		 1ULL << VHOST_USER_PROTOCOL_F_SLAVE_REQ | \
+		 1ULL << VHOST_USER_PROTOCOL_F_SLAVE_SEND_FD | \
+		 1ULL << VHOST_USER_PROTOCOL_F_HOST_NOTIFIER)
+static int
+virtio_vdpa_get_protocol_features(int did __rte_unused, uint64_t *features)
+{
+	*features = VDPA_SUPPORTED_PROTOCOL_FEATURES;
+	return 0;
+}
+
 static struct rte_vdpa_dev_ops virtio_vdpa_ops = {
 	.get_queue_num = virtio_vdpa_get_queue_num,
 	.get_features = virtio_vdpa_get_features,
+	.get_protocol_features = virtio_vdpa_get_protocol_features,
 };
 
 static inline int
-- 
2.21.0