+static void
+nix_enable_mseg_on_jumbo(struct cnxk_eth_rxq_sp *rxq)
+{
+ struct rte_pktmbuf_pool_private *mbp_priv;
+ struct rte_eth_dev *eth_dev;
+ struct cnxk_eth_dev *dev;
+ uint32_t buffsz;
+
+ dev = rxq->dev;
+ eth_dev = dev->eth_dev;
+
+ /* Get rx buffer size */
+ mbp_priv = rte_mempool_get_priv(rxq->qconf.mp);
+ buffsz = mbp_priv->mbuf_data_room_size - RTE_PKTMBUF_HEADROOM;
+
+ if (eth_dev->data->dev_conf.rxmode.max_rx_pkt_len > buffsz) {
+ dev->rx_offloads |= DEV_RX_OFFLOAD_SCATTER;
+ dev->tx_offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
+ }
+}
+
+static int
+nix_recalc_mtu(struct rte_eth_dev *eth_dev)
+{
+ struct rte_eth_dev_data *data = eth_dev->data;
+ struct cnxk_eth_rxq_sp *rxq;
+ uint16_t mtu;
+ int rc;
+
+ rxq = ((struct cnxk_eth_rxq_sp *)data->rx_queues[0]) - 1;
+ /* Setup scatter mode if needed by jumbo */
+ nix_enable_mseg_on_jumbo(rxq);
+
+ /* Setup MTU based on max_rx_pkt_len */
+ mtu = data->dev_conf.rxmode.max_rx_pkt_len - CNXK_NIX_L2_OVERHEAD +
+ CNXK_NIX_MAX_VTAG_ACT_SIZE;
+
+ rc = cnxk_nix_mtu_set(eth_dev, mtu);
+ if (rc)
+ plt_err("Failed to set default MTU size, rc=%d", rc);
+
+ return rc;
+}
+