On 5/20/2020 1:17 AM, Iuliana Prodan wrote: > Now, in crypto-engine, if hardware queue is full (-ENOSPC), > requeue request regardless of MAY_BACKLOG flag. > If hardware throws any other error code (like -EIO, -EINVAL, > -ENOMEM, etc.) only MAY_BACKLOG requests are enqueued back into > crypto-engine's queue, since the others can be dropped. > The latter case can be fatal error, so those cannot be recovered from. > For example, in CAAM driver, -EIO is returned in case the job descriptor > is broken, so there is no possibility to fix the job descriptor. > Therefore, these errors might be fatal error, so we shouldn’t > requeue the request. This will just be pass back and forth between > crypto-engine and hardware. > > Fixes: 6a89f492f8e5 ("crypto: engine - support for parallel requests based on retry mechanism") > Signed-off-by: Iuliana Prodan <iuliana.prodan@xxxxxxx> Reported-by: Horia Geantă <horia.geanta@xxxxxxx> Reviewed-by: Horia Geantă <horia.geanta@xxxxxxx> Thanks, Horia