[dpdk-dev] [PATCH 4/7] net/virtio: adapt Virtio-user status size

[Maxime Coquelin]

Set proper payload size for set/get status message. The payload
size varies according to backend types.

Signed-off-by: Maxime Coquelin <maxime.coque...@redhat.com>
Signed-off-by: Patrick Fu <patrick...@intel.com>
---
 .../net/virtio/virtio_user/virtio_user_dev.c  | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.c 
b/drivers/net/virtio/virtio_user/virtio_user_dev.c
index 93274b2a94..753611ef42 100644
--- a/drivers/net/virtio/virtio_user/virtio_user_dev.c
+++ b/drivers/net/virtio/virtio_user/virtio_user_dev.c
@@ -838,14 +838,18 @@ virtio_user_send_status_update(struct virtio_user_dev 
*dev, uint8_t status)
        enum virtio_user_backend_type backend_type =
                                virtio_user_backend_type(dev->path);
 
-       /* Vhost-user only for now */
-       if (backend_type != VIRTIO_USER_BACKEND_VHOST_USER)
+       if (!(dev->protocol_features & (1ULL << VHOST_USER_PROTOCOL_F_STATUS)))
                return 0;
 
-       if (!(dev->protocol_features & (1ULL << VHOST_USER_PROTOCOL_F_STATUS)))
+       if (backend_type == VIRTIO_USER_BACKEND_VHOST_USER)
+               ret = dev->ops->send_request(dev,
+                               VHOST_USER_SET_STATUS, &arg);
+       else if (backend_type == VIRTIO_USER_BACKEND_VHOST_VDPA)
+               ret = dev->ops->send_request(dev,
+                               VHOST_USER_SET_STATUS, &status);
+       else
                return 0;
 
-       ret = dev->ops->send_request(dev, VHOST_USER_SET_STATUS, &arg);
        if (ret) {
                PMD_INIT_LOG(ERR, "VHOST_USER_SET_STATUS failed (%d): %s", ret,
                             strerror(errno));
@@ -858,7 +862,7 @@ virtio_user_send_status_update(struct virtio_user_dev *dev, 
uint8_t status)
 int
 virtio_user_update_status(struct virtio_user_dev *dev)
 {
-       uint64_t ret;
+       uint8_t ret;
        int err;
        enum virtio_user_backend_type backend_type =
                                virtio_user_backend_type(dev->path);
@@ -876,11 +880,6 @@ virtio_user_update_status(struct virtio_user_dev *dev)
                             strerror(errno));
                return -1;
        }
-       if (ret > UINT8_MAX) {
-               PMD_INIT_LOG(ERR, "Invalid VHOST_USER_GET_STATUS "
-                               "response 0x%" PRIx64 "\n", ret);
-               return -1;
-       }
 
        dev->status = ret;
        PMD_INIT_LOG(DEBUG, "Updated Device Status(0x%08x):\n"
-- 
2.26.2