igc: allow configuring RSS key via ethtool set_rxfh

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Change igc_ethtool_set_rxfh() to accept and save a userspace-provided
RSS key. When a key is provided, store it in the adapter and write the
RSSRK registers accordingly.

This can be tested using `ethtool -X <dev> hkey <key>`.

Signed-off-by: Kohei Enju <kohei@enjuk.jp>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Avigail Dahan <avigailx.dahan@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

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Kohei Enju 2026-01-31 16:29:38 +00:00 • committed by Tony Nguyen

parent f243be8ede

commit 3fc4c1ee5f

1 changed files with 17 additions and 13 deletions

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drivers/net/ethernet/intel/igc/igc_ethtool.c

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