As doc mentioned, promisc and multicast are by-default supported in
virtio pmd. Mac/vlan filter are supported by best effort. These control
messages should return success.

Fixes: f9b9d1a55775 ("net/virtio-user: add multiple queues in device emulation")
Cc: sta...@dpdk.org

Signed-off-by: Marvin Liu <yong....@intel.com>
---
 .../net/virtio/virtio_user/virtio_user_dev.c  | 24 +++++++++++++++++++
 drivers/net/virtio/virtio_user_ethdev.c       |  4 ++++
 2 files changed, 28 insertions(+)

diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.c 
b/drivers/net/virtio/virtio_user/virtio_user_dev.c
index 1c575d0cd..dc0007b7c 100644
--- a/drivers/net/virtio/virtio_user/virtio_user_dev.c
+++ b/drivers/net/virtio/virtio_user/virtio_user_dev.c
@@ -613,6 +613,18 @@ virtio_user_handle_ctrl_msg(struct virtio_user_dev *dev, 
struct vring *vring,
 
                queues = *(uint16_t *)(uintptr_t)vring->desc[idx_data].addr;
                status = virtio_user_handle_mq(dev, queues);
+       } else if (hdr->class == VIRTIO_NET_CTRL_RX) {
+               if (hdr->cmd == VIRTIO_NET_CTRL_RX_PROMISC ||
+                   hdr->cmd == VIRTIO_NET_CTRL_RX_ALLMULTI) {
+                       uint8_t setting;
+                       setting = *(uint8_t *)(uintptr_t)
+                                       vring->desc[idx_data].addr;
+                       if (setting)
+                               status = 0;
+               }
+       } else if (hdr->class == VIRTIO_NET_CTRL_MAC ||
+                  hdr->class == VIRTIO_NET_CTRL_VLAN) {
+               status = 0;
        }
 
        /* Update status */
@@ -664,6 +676,18 @@ virtio_user_handle_ctrl_msg_packed(struct virtio_user_dev 
*dev,
                queues = *(uint16_t *)(uintptr_t)
                                vring->desc[idx_data].addr;
                status = virtio_user_handle_mq(dev, queues);
+       } else if (hdr->class == VIRTIO_NET_CTRL_RX) {
+               if (hdr->cmd == VIRTIO_NET_CTRL_RX_PROMISC ||
+                   hdr->cmd == VIRTIO_NET_CTRL_RX_ALLMULTI) {
+                       uint8_t setting;
+                       setting = *(uint8_t *)(uintptr_t)
+                                       vring->desc[idx_data].addr;
+                       if (setting)
+                               status = 0;
+               }
+       } else if (hdr->class == VIRTIO_NET_CTRL_MAC ||
+                  hdr->class == VIRTIO_NET_CTRL_VLAN) {
+               status = 0;
        }
 
        /* Update status */
diff --git a/drivers/net/virtio/virtio_user_ethdev.c 
b/drivers/net/virtio/virtio_user_ethdev.c
index 3fc172573..18caf5e88 100644
--- a/drivers/net/virtio/virtio_user_ethdev.c
+++ b/drivers/net/virtio/virtio_user_ethdev.c
@@ -660,6 +660,10 @@ virtio_user_pmd_probe(struct rte_vdev_device *dev)
                goto end;
        }
 
+       /* multicast and promisc mode are always enabled */
+       eth_dev->data->promiscuous = 1;
+       eth_dev->data->all_multicast = 1;
+
        hw = eth_dev->data->dev_private;
        if (virtio_user_dev_init(hw->virtio_user_dev, path, queues, cq,
                         queue_size, mac_addr, &ifname, server_mode,
-- 
2.17.1

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