This is the RSS hash related queries in 40G NIC: Hash Flags: 8888
Key Length: 52 Keys: 6D 5A 56 DA 25 5B E C2 41 67 25 3D 43 A3 8F B0 D0 CA 2B CB AE 7B 30 B4 77 CB 2D A3 80 30 F2 C 6A 42 B7 3B BE AC 1 FA 0 0 0 0 0 0 0 0 0 0 0 0 Hash Algorithm: Toeplitz Symmetric hash status: 1 RETA table size: 512 Entries 0-63: 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, Entries 64-127: 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, Entries 128-191: 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, Entries 192-255: 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, Entries 256-319: 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, Entries 320-383: 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, Entries 384-447: 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, Entries 448-511: 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, On 16 February 2016 at 17:14, Rahul Ramachandran <rahulnitk2004 at gmail.com> wrote: > Hi, > > I am using dpdk 2.1. I see the hash flags are unified compared to my > previous version 1.8. > But with DPDK 2.1 in Fortville NIC's, I see ipv6 RSS is not working, > all the frames are queued to > first queue even though I have 16 queues (RETA table looks correct). > > For IPV4 RSS works as expected in Fortville. Also in 10G, both ipv4 > and ipv6 RSS works. > > My RSS configuration is : rss_hf = ETH_RSS_IP | ETH_*RSS* > _NONFRAG_IPV4_TCP | ETH_*RSS*_NONFRAG_IPV4_UDP > > I see ETH_RSS_IP contains Layer3 hash flags for ipv6. > > #define ETH_*RSS*_IP ( \ > ETH_*RSS*_IPV4 | \ > ETH_*RSS*_FRAG_IPV4 | \ > ETH_*RSS*_NONFRAG_IPV4_OTHER | \ > ETH_*RSS*_*IPV6* | \ > ETH_*RSS*_FRAG_*IPV6* | \ > ETH_*RSS*_NONFRAG_*IPV6*_OTHER | \ > ETH_*RSS*_*IPV6*_EX) > > But when I query the hash flags, I get the value of 8888. I understand > while configuring RSS > HF in the 40G NIC, we mask the configured RSS HF with NIC specific > mask flags before writing to NIC. But I am not > sure after masking it is taking the flags for IPV6. > > The mask or I40E: I40E_*RSS*_OFFLOAD_ALL . I see this > conatins the flags ETH_*RSS*_FRAG_*IPV6 & *ETH_*RSS*_NONFRAG_*IPV6* > _OTHER. > > Are you aware of any such problems? > > Please let me know if you need more information. > > Thanks >