#define IPV4_MTU_DEFAULT ETHER_MTU
#define IPV6_MTU_DEFAULT ETHER_MTU
+/*
+ * The overhead from max frame size to MTU.
+ * We have to consider the max possible overhead.
+ */
+#define MTU_OVERHEAD \
+ (ETHER_HDR_LEN + ETHER_CRC_LEN + 2 * sizeof(struct vlan_hdr))
+
/*
* Default payload in bytes for the IPv6 packet.
*/
.rxmode = {
.max_rx_pkt_len = JUMBO_FRAME_MAX_SIZE,
.split_hdr_size = 0,
- .ignore_offload_bitfield = 1,
.offloads = (DEV_RX_OFFLOAD_CHECKSUM |
- DEV_RX_OFFLOAD_JUMBO_FRAME |
- DEV_RX_OFFLOAD_CRC_STRIP),
+ DEV_RX_OFFLOAD_SCATTER |
+ DEV_RX_OFFLOAD_JUMBO_FRAME),
},
.txmode = {
.mq_mode = ETH_MQ_TX_NONE,
ret, portid);
}
+ /* set the mtu to the maximum received packet size */
+ ret = rte_eth_dev_set_mtu(portid,
+ local_port_conf.rxmode.max_rx_pkt_len - MTU_OVERHEAD);
+ if (ret < 0) {
+ printf("\n");
+ rte_exit(EXIT_FAILURE, "Set MTU failed: "
+ "err=%d, port=%d\n",
+ ret, portid);
+ }
+
ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
&nb_txd);
if (ret < 0) {
fflush(stdout);
txconf = &dev_info.default_txconf;
- txconf->txq_flags = ETH_TXQ_FLAGS_IGNORE;
txconf->offloads = local_port_conf.txmode.offloads;
ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
socket, txconf);