ethdev: allow returning error on VLAN offload ops

[dpdk.git] / drivers / net / virtio / virtio_ethdev.c

diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index d4354f9..ff2d9d6 100644 (file)
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -73,6 +73,7 @@ static void virtio_dev_info_get(struct rte_eth_dev *dev,
                                struct rte_eth_dev_info *dev_info);
 static int virtio_dev_link_update(struct rte_eth_dev *dev,
        int wait_to_complete);
+static int virtio_dev_vlan_offload_set(struct rte_eth_dev *dev, int mask);
 
 static void virtio_set_hwaddr(struct virtio_hw *hw);
 static void virtio_get_hwaddr(struct virtio_hw *hw);
@@ -779,6 +780,7 @@ static const struct eth_dev_ops virtio_eth_dev_ops = {
        .stats_reset             = virtio_dev_stats_reset,
        .xstats_reset            = virtio_dev_stats_reset,
        .link_update             = virtio_dev_link_update,
+       .vlan_offload_set        = virtio_dev_vlan_offload_set,
        .rx_queue_setup          = virtio_dev_rx_queue_setup,
        .rx_queue_intr_enable    = virtio_dev_rx_queue_intr_enable,
        .rx_queue_intr_disable   = virtio_dev_rx_queue_intr_disable,
@@ -1952,6 +1954,29 @@ virtio_dev_link_update(struct rte_eth_dev *dev, __rte_unused int wait_to_complet
        return (old.link_status == link.link_status) ? -1 : 0;
 }
 
+static int
+virtio_dev_vlan_offload_set(struct rte_eth_dev *dev, int mask)
+{
+       const struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
+       struct virtio_hw *hw = dev->data->dev_private;
+
+       if (mask & ETH_VLAN_FILTER_MASK) {
+               if (rxmode->hw_vlan_filter &&
+                               !vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_VLAN)) {
+
+                       PMD_DRV_LOG(NOTICE,
+                               "vlan filtering not available on this host");
+
+                       return -ENOTSUP;
+               }
+       }
+
+       if (mask & ETH_VLAN_STRIP_MASK)
+               hw->vlan_strip = rxmode->hw_vlan_strip;
+
+       return 0;
+}
+
 static void
 virtio_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 {