* [dpdk-users] 82599 didn't calculate checksum when checksum offload is enabled
@ 2017-07-04 10:12 Yu Yang
0 siblings, 0 replies; only message in thread
From: Yu Yang @ 2017-07-04 10:12 UTC (permalink / raw)
To: users
my project is an UDP server. I think the code is correct, because it works
well on an I350 NIC, but when I test on 82599, it didn't calculate checksum
at all and tcpdump running on remote machine reports bad ipv4 checksum(0)
and bad udp checksum(the pseudo-header checksum calculated by server), I
also tried disable checksum offload and use software to calculate checksum,
it works. this is my port config
struct rte_eth_conf default_port_conf = {
.rxmode = {
.mq_mode = ETH_MQ_RX_RSS,
.max_rx_pkt_len = ETHER_MAX_LEN,
.split_hdr_size = 0,
.header_split = 0, /**< Header Split disabled */
.hw_ip_checksum = 1, /**< IP checksum offload enabled */
.hw_vlan_filter = 0, /**< VLAN filtering disabled */
.jumbo_frame = 0, /**< Jumbo Frame Support disabled */
.hw_strip_crc = 1, /**< CRC stripped by hardware */
},
.rx_adv_conf = {
.rss_conf = {
.rss_key = NULL,
.rss_hf = ETH_RSS_TCP | ETH_RSS_UDP | ETH_RSS_IP |
ETH_RSS_L2_PAYLOAD,
},
},
.txmode = {
.mq_mode = ETH_MQ_TX_NONE,
},
};
dpdk version is 16.11.1
thanks
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