igb: prepare for RSS key get/set support

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Store the RSS key inside struct igb_adapter and introduce the
igb_write_rss_key() helper function. This allows the driver to program
the E1000 registers using a persistent RSS key, instead of using a
stack-local buffer in igb_setup_mrqc().

Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Piotr Kwapulinski <piotr.kwapulinski@intel.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Takashi Kozu <takkozu@amazon.com>
Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

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Takashi Kozu 2026-02-03 21:54:11 +09:00 • committed by Tony Nguyen

parent 3fc4c1ee5f

commit dfaf57ef99

3 changed files with 28 additions and 4 deletions

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3

drivers/net/ethernet/intel/igb/igb.h

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21

drivers/net/ethernet/intel/igb/igb_ethtool.c

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8

drivers/net/ethernet/intel/igb/igb_main.c

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