On Thu, Jan 13, 2022 at 12:52:04AM +0900, Yasuhiro Ohara wrote: > > Hi, > > My system developper friend recently ran into a problem where > l3fwd does not appear to receive balanced traffic on Intel XL710, > but it is resolved when the attached patch is applied. > > - .rss_hf = ETH_RSS_IP, > + .rss_hf = ETH_RSS_IP | ETH_RSS_TCP | ETH_RSS_UDP, > > IIRC I ran into a similar problem 3 or 4 years back, > but didn't report then because I believed I was doing something silly. > But since my friend is an experienced engineer, I feel like > it may be better (for the community) to ask this in the list. > > We are using dpdk-stable-18.11.6 and igb_uio. > > What are we doing wrong? > > If it is not a FAQ, I can test it again with more recent stable, > and will report the details. > For XL710 NICs, I believe that ETH_RSS_IP load balances only IP frames that do not have TCP or UDP headers also. Adding i40e driver maintainer on CC to comment further.
/Bruce
