Hi, I think this is not the vector driver because I'm user scatter/gather
Thanks, Hanoh -----Original Message----- From: Ferruh Yigit [mailto:ferruh.yi...@intel.com] Sent: Thursday, March 22, 2018 2:18 PM To: Hanoch Haim (hhaim); Bruce Richardson Cc: dev@dpdk.org Subject: Re: [dpdk-dev] i40e mbuf->rss indication On 3/22/2018 11:46 AM, Hanoch Haim (hhaim) wrote: > Driver: i40e > > DPDK : 17.11 > > Configuration : > > 1) RSS configuration > rxmode.mq_mode = ETH_MQ_RX_RSS; > rss->rss_hf = ETH_RSS_UDP | ETH_RSS_TCP; > rss->rss_key = Microsoft key > rss->rss_key_len = 52 > > *configure RETA to some rx-queues > > 2) Change hash to TOEPLITZ (only for i40e) > > struct rte_eth_hash_filter_info info = {}; > info.info_type = RTE_ETH_HASH_FILTER_GLOBAL_CONFIG; > info.info.global_conf.hash_func = RTE_ETH_HASH_FUNCTION_TOEPLITZ; > rte_eth_dev_filter_ctrl(m_repid, > RTE_ETH_FILTER_HASH, > RTE_ETH_FILTER_SET, &info); > > 3) Configure some flow-director rules > > 4) TCP/UDP packets are received to the *right* core (based on a SW Toeplitz > calculation +reta table) however > The reported rss value is *wrong* in the mbuf > (m->hash.rss == *wrong value*) Are you getting same result with both scalar and vector driver? > ((m->ol_flags&PKT_RX_RSS_HASH) == PKT_RX_RSS_HASH > > 5) The above works fine for mlx5 and ixgbe > > 6) I suspect the hash is something else, maybe flow-director id or xor hash .. > > Wanted to know if this is a known issue. I can provide a simple way to > reproduce it using TRex > > Thanks, > Hanoh > > > -----Original Message----- > From: Bruce Richardson [mailto:bruce.richard...@intel.com] > Sent: Thursday, March 22, 2018 1:35 PM > To: Hanoch Haim (hhaim) > Cc: dev@dpdk.org > Subject: Re: [dpdk-dev] i40e mbuf->rss indication > > On Wed, Mar 21, 2018 at 06:47:22PM +0000, Hanoch Haim (hhaim) wrote: >> Hi All, >> DPDK:17.11 >> When i40e is configured with RSS enabled and hash.type=toeplitz >> >> m->hash.rss = some weird number >> ((m->ol_flags&PKT_RX_RSS_HASH) == PKT_RX_RSS_HASH >> >> The hash value is correct and match the MS Toeplitz standard. >> >> Is this expected? > > I'm sorry, but I don't quite follow the question, or the problem. Are you > meaning to say that the hash value is incorrect, or that the flag is not > being set or something else? > > /Bruce > >> >> The above works fine with ixgbe/mlx5 >> >> Thanks, >> Hanoh >>
