i40e: remove unnecessary memory writes of the next to clean pointer

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For performance reasons, avoid writing the ring next-to-clean pointer
value back to memory on every update, as it is not really necessary.
Instead, simply read it at initialization into a local copy, update
the local copy as necessary and write the local copy back to memory
after the last update.

Signed-off-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
Tested-by: Kiran Bhandare <kiranx.bhandare@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

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Cristian Dumitrescu 2021-01-14 14:33:15 +00:00 • committed by Tony Nguyen

parent 08cbabb77e

commit c8a8ca3408

1 changed files with 11 additions and 19 deletions

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drivers/net/ethernet/intel/i40e/i40e_xsk.c

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