Hi Xiaoban, Thank you for your sharing link, which definitely works. Actually, this RSS problem does not occur in my ENV setting (DPDK-18.02), which seems appearing in @Kong ’s setting (DPDK-17.08). (:, I have not checked whether it is the problem of DPDK version.
Best Regards, Zhilong > 在 2018年10月23日，20:41，Wu, Xiaoban <[email protected]> 写道： > > Hi Zhilong, > > I encountered the same problem before, and I found a solution at > https://stackoverflow.com/questions/42342723/how-to-set-up-rss-hash-fuction-in-xl710-to-receive-ipv4-flow-type# > > <https://stackoverflow.com/questions/42342723/how-to-set-up-rss-hash-fuction-in-xl710-to-receive-ipv4-flow-type#> > > You basically need to find the corresponding C function of each CLI command, > and directly call them with some modifications. > > Best wishes, > Xiaoban > > From: users <[email protected]> on behalf of zhilong zheng > <[email protected]> > Sent: Tuesday, October 23, 2018 1:50:30 AM > To: Xiao Kong > Cc: [email protected] > Subject: Re: [dpdk-users] RSS problems with Intel XL710 NIC (i40e) > > Hi Kong, > > What command that you use to run testpmd? It seems that your RSS is not > enabled/configured. > > Regards, > Zhilong > > > 在 2018年10月20日，09:59，Xiao Kong <[email protected]> 写道： > > > > Dear all, > > We are currently trying to build a multi-RX-queue dpdk program, using RSS > > to split the incoming traffic evenly into RX queues on a single port. It > > works fine when we use an Intel 82599ES 10Gig NIC. However when we switch > > to the Intel XL710 40Gig NIC (i40e), RSS does not seem to work. As a > > result, TCP packets belonging to various flows (with different src&dst IPs, > > ports) are all sent into the same RX queue. Below is our code. > > static const struct rte_eth_conf port_conf_default = { > > .rxmode = { > > .max_rx_pkt_len = ETHER_MAX_LEN, //1518 > > .mq_mode = ETH_MQ_RX_RSS, > > }, > > .rx_adv_conf = { > > .rss_conf = { > > .rss_key = NULL, > > .rss_hf = ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP | ETH_RSS_SCTP, > > } > > }, > > }; > > We noticed that it is mentioned on several pages that XL710 sometimes > > behaves quite differently from other NICs, but we just can't find a way to > > configurate RSS hash fields on our card. Another thing is when we tried to > > enable RSS or setup hash fields in testpmd, it showed error messages as > > follows. > > testpmd> port config all rss all > > Configuration of RSS hash at ethernet port 0 failed with error (22): > > Invalid argument. > > Configuration of RSS hash at ethernet port 1 failed with error (22): > > Invalid argument. > > testpmd> show port 1 rss-hash ipv4 > > RSS disabled > > I am wondering if there is any mistake we made or if there is a unique > > method for XL710 to configure RSS hash fields. > > By the way, we are using DPDK ver. 17.08. > > Thanks. > > -------------------------- > > Best Regards, > > Kong > >
