hi,
no use rte_eth_tx_prepare()? I set txq_flags value as below, may it cause this issue? .txq_flags = ~ETH_TXQ_FLAGS_NOXSUMS -- Best Regards, zimeiw At 2017-08-22 15:49:56, "Ferruh Yigit" <ferruh.yi...@intel.com> wrote: >On 8/22/2017 5:45 AM, zimeiw wrote: >> hi, >> My test env is dell T430 server, NIC is intel 82599ES. >> I integrate my app with dpdk-17.05.1 version. after do some tcp traffic >> testing, app can receive packets from the 82599 NIC, but 82599 NIC send >> packets failed. >> But my app with dpdk-17.02 works well. >> >> >> If any change with ixgbe driver? or need some additional configuration for >> the NIC? > >tx_pkt_prepare added but it has been added on 17.02 which seems working >for your case. > >Just to double check, are you using rte_eth_tx_prepare()? > >> >> >> >> Thanks. >> >> >> -- >> >> Best Regards, >> zimeiw >> >