idpf: add get/set for Ethtool's header split ringparam

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idpf supports the header split feature and that feature is always
enabled by default.
However, for flexibility reasons and to simplify some scenarios, it
would be useful to have the support for switching the header split
off (and on) from the userspace.

Address that need by adding the user config parameter, the functions
for disabling (or enabling) the header split feature, and calls to
them from the Ethtool ringparam callbacks.
It still is enabled by default if supported by the hardware.

Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Michal Kubiak <michal.kubiak@intel.com>
Co-developed-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Link: https://lore.kernel.org/r/20231212142752.935000-3-aleksander.lobakin@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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This commit is contained in:

Michal Kubiak 2023-12-12 15:27:52 +01:00 • committed by Jakub Kicinski

parent 50d7371071

commit 9b1aa3ef23

5 changed files with 90 additions and 7 deletions

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7

drivers/net/ethernet/intel/idpf/idpf.h

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11

drivers/net/ethernet/intel/idpf/idpf_ethtool.c

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65

drivers/net/ethernet/intel/idpf/idpf_lib.c

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12

drivers/net/ethernet/intel/idpf/idpf_txrx.c

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2

drivers/net/ethernet/intel/idpf/idpf_virtchnl.c

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