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Message-ID: <89e63967-46c4-49fe-87bc-331c7c2f6aab@nvidia.com> Date: Sun, 29 Oct 2023 14:25:17 +0200 From: Gal Pressman <gal@...dia.com> To: Ahmed Zaki <ahmed.zaki@...el.com>, Jakub Kicinski <kuba@...nel.org> Cc: mkubecek@...e.cz, andrew@...n.ch, willemdebruijn.kernel@...il.com, Wojciech Drewek <wojciech.drewek@...el.com>, corbet@....net, netdev@...r.kernel.org, linux-doc@...r.kernel.org, jesse.brandeburg@...el.com, edumazet@...gle.com, anthony.l.nguyen@...el.com, horms@...nel.org, vladimir.oltean@....com, Jacob Keller <jacob.e.keller@...el.com>, intel-wired-lan@...ts.osuosl.org, pabeni@...hat.com, davem@...emloft.net Subject: Re: [Intel-wired-lan] [PATCH net-next v4 1/6] net: ethtool: allow symmetric-xor RSS hash for any flow type On 21/10/2023 3:00, Ahmed Zaki wrote: > > > On 2023-10-20 17:49, Jakub Kicinski wrote: >> On Fri, 20 Oct 2023 17:14:11 -0600 Ahmed Zaki wrote: >>> I replied to that here: >>> >>> https://lore.kernel.org/all/afb4a06f-cfba-47ba-adb3-09bea7cb5f00@intel.com/ >>> >>> I am kind of confused now so please bear with me. ethtool either sends >>> "ethtool_rxfh" or "ethtool_rxnfc". AFAIK "ethtool_rxfh" is the interface >>> for "ethtool -X" which is used to set the RSS algorithm. But we kind of >>> agreed to go with "ethtool -U|-N" for symmetric-xor, and that uses >>> "ethtool_rxnfc" (as implemented in this series). >> >> I have no strong preference. Sounds like Alex prefers to keep it closer >> to algo, which is "ethtool_rxfh". >> >>> Do you mean use "ethtool_rxfh" instead of "ethtool_rxnfc"? how would >>> that work on the ethtool user interface? >> >> I don't know what you're asking of us. If you find the code to confusing >> maybe someone at Intel can help you :| > > The code is straightforward. I am confused by the requirements: don't > add a new algorithm but use "ethtool_rxfh". > > I'll see if I can get more help, may be I am missing something. > What was the decision here? Is this going to be exposed through ethtool -N or -X?
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