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892311f66f
This patch extends the set/get_rxfh ethtool-options for getting or setting the RSS hash function. It modifies drivers implementation of set/get_rxfh accordingly. This change also delegates the responsibility of checking whether a modification to a certain RX flow hash parameter is supported to the driver implementation of set_rxfh. User-kernel API is done through the new hfunc bitmask field in the ethtool_rxfh struct. A bit set in the hfunc field is corresponding to an index in the new string-set ETH_SS_RSS_HASH_FUNCS. Got approval from most of the relevant driver maintainers that their driver is using Toeplitz, and for the few that didn't answered, also assumed it is Toeplitz. Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Ariel Elior <ariel.elior@qlogic.com> Cc: Prashant Sreedharan <prashant@broadcom.com> Cc: Michael Chan <mchan@broadcom.com> Cc: Hariprasad S <hariprasad@chelsio.com> Cc: Sathya Perla <sathya.perla@emulex.com> Cc: Subbu Seetharaman <subbu.seetharaman@emulex.com> Cc: Ajit Khaparde <ajit.khaparde@emulex.com> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Cc: Jesse Brandeburg <jesse.brandeburg@intel.com> Cc: Bruce Allan <bruce.w.allan@intel.com> Cc: Carolyn Wyborny <carolyn.wyborny@intel.com> Cc: Don Skidmore <donald.c.skidmore@intel.com> Cc: Greg Rose <gregory.v.rose@intel.com> Cc: Matthew Vick <matthew.vick@intel.com> Cc: John Ronciak <john.ronciak@intel.com> Cc: Mitch Williams <mitch.a.williams@intel.com> Cc: Amir Vadai <amirv@mellanox.com> Cc: Solarflare linux maintainers <linux-net-drivers@solarflare.com> Cc: Shradha Shah <sshah@solarflare.com> Cc: Shreyas Bhatewara <sbhatewara@vmware.com> Cc: "VMware, Inc." <pv-drivers@vmware.com> Cc: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Eyal Perry <eyalpe@mellanox.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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