That makes sense. Thank you. It would be great to have further comments from the maintener.
For the RTE framework integrity, would it be better for us to have a consistent meaning for the ETH_RSS_XXX flags? Do the other drivers act differently? Best regards, Yasu From: Bruce Richardson <[email protected]> Subject: Re: ETH_RSS_IP only does not seem to balance traffic Date: Thu, 13 Jan 2022 15:05:53 +0000 Message-ID: <YeA/[email protected]> > 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 >
