RDMA/efa: Add checksum support for admin responses

EFA devices added support for CRC16 checksum on admin responses and to
expose it to the driver the API version increased to 0.2. Add a check
for support on device init and if supported validate the checksum on
each admin response the driver receives. If the checksum validation
failed, drop the CQE.

Add the CRC16 module to Kconfig to have the in-tree dependency.

Reviewed-by: Firas Jahjah <firasj@amazon.com>
Reviewed-by: Michael Margolin <mrgolin@amazon.com>
Signed-off-by: Yonatan Nachum <ynachum@amazon.com>
Link: https://patch.msgid.link/20260409074905.3126023-1-ynachum@amazon.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Yonatan Nachum 2026-04-09 07:49:05 +00:00 • committed by Leon Romanovsky
commit 7de165740c
5 changed files with 55 additions and 20 deletions