On 8/22/2017 9:30 AM, zimeiw wrote: > 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
So you are enabling all csum offloading, for Tx path this requires packets to be prepared before sending to the NIC. Can you please test with rte_eth_tx_prepare()? testpmd has the sample usage. Thanks, ferruh > > -- > 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 >>> >> > > > > >
