+ * Enable/disable VLAN stripping.
+ */
+void
+mlx5_vlan_strip_queue_set(struct rte_eth_dev *dev, uint16_t queue, int on)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_rxq_data *rxq = (*priv->rxqs)[queue];
+ struct mlx5_rxq_ctrl *rxq_ctrl =
+ container_of(rxq, struct mlx5_rxq_ctrl, rxq);
+ struct ibv_wq_attr mod;
+ uint16_t vlan_offloads =
+ (on ? IBV_WQ_FLAGS_CVLAN_STRIPPING : 0) |
+ 0;
+ int ret = 0;
+
+ /* Validate hw support */
+ if (!priv->config.hw_vlan_strip) {
+ DRV_LOG(ERR, "port %u VLAN stripping is not supported",
+ dev->data->port_id);
+ return;
+ }
+ /* Validate queue number */
+ if (queue >= priv->rxqs_n) {
+ DRV_LOG(ERR, "port %u VLAN stripping, invalid queue number %d",
+ dev->data->port_id, queue);
+ return;
+ }
+ DRV_LOG(DEBUG, "port %u set VLAN offloads 0x%x for port %uqueue %d",
+ dev->data->port_id, vlan_offloads, rxq->port_id, queue);
+ if (!rxq_ctrl->obj) {
+ /* Update related bits in RX queue. */
+ rxq->vlan_strip = !!on;
+ return;
+ }
+ if (rxq_ctrl->obj->type == MLX5_RXQ_OBJ_TYPE_IBV) {
+ mod = (struct ibv_wq_attr){
+ .attr_mask = IBV_WQ_ATTR_FLAGS,
+ .flags_mask = IBV_WQ_FLAGS_CVLAN_STRIPPING,
+ .flags = vlan_offloads,
+ };
+ ret = mlx5_glue->modify_wq(rxq_ctrl->obj->wq, &mod);
+ } else if (rxq_ctrl->obj->type == MLX5_RXQ_OBJ_TYPE_DEVX_RQ) {
+ struct mlx5_devx_modify_rq_attr rq_attr;
+
+ memset(&rq_attr, 0, sizeof(rq_attr));
+ rq_attr.rq_state = MLX5_RQC_STATE_RDY;
+ rq_attr.state = MLX5_RQC_STATE_RDY;
+ rq_attr.vsd = (on ? 0 : 1);
+ rq_attr.modify_bitmask = MLX5_MODIFY_RQ_IN_MODIFY_BITMASK_VSD;
+ ret = mlx5_devx_cmd_modify_rq(rxq_ctrl->obj->rq, &rq_attr);
+ }
+ if (ret) {
+ DRV_LOG(ERR, "port %u failed to modify object %d stripping "
+ "mode: %s", dev->data->port_id,
+ rxq_ctrl->obj->type, strerror(rte_errno));
+ return;
+ }
+ /* Update related bits in RX queue. */
+ rxq->vlan_strip = !!on;
+}
+
+/**
+ * Callback to set/reset VLAN offloads for a port.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ * @param mask
+ * VLAN offload bit mask.