On 3/5/2019 8:03 PM, Vakul Garg wrote: > Instead of reading job ring's occupancy registers for every req/rsp > enqueued/dequeued respectively, we read these registers once and store > them in memory. After completing a job enqueue/dequeue, we decrement > these values. When these values become zero, we refresh the snapshot of > job ring's occupancy registers. This eliminates need of expensive device > register read operations for every job enqueued and dequeued and hence > makes caam_jr_enqueue() and caam_jr_dequeue() faster. The performance of > kernel ipsec improved by about 6% on ls1028 (for frame size 408 bytes). > > Signed-off-by: Vakul Garg <vakul.garg@xxxxxxx> Reviewed-by: Horia Geantă <horia.geanta@xxxxxxx> Thanks, Horia
