+static int
+ice_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
+{
+ struct ice_pf *pf = ICE_DEV_PRIVATE_TO_PF(dev->data->dev_private);
+ struct rte_eth_dev_data *dev_data = pf->dev_data;
+ uint32_t frame_size = mtu + ETHER_HDR_LEN
+ + ETHER_CRC_LEN + ICE_VLAN_TAG_SIZE;
+
+ /* check if mtu is within the allowed range */
+ if (mtu < ETHER_MIN_MTU || frame_size > ICE_FRAME_SIZE_MAX)
+ return -EINVAL;
+
+ /* mtu setting is forbidden if port is start */
+ if (dev_data->dev_started) {
+ PMD_DRV_LOG(ERR,
+ "port %d must be stopped before configuration",
+ dev_data->port_id);
+ return -EBUSY;
+ }
+
+ if (frame_size > ETHER_MAX_LEN)
+ dev_data->dev_conf.rxmode.offloads |=
+ DEV_RX_OFFLOAD_JUMBO_FRAME;
+ else
+ dev_data->dev_conf.rxmode.offloads &=
+ ~DEV_RX_OFFLOAD_JUMBO_FRAME;
+
+ dev_data->dev_conf.rxmode.max_rx_pkt_len = frame_size;
+
+ return 0;
+}
+