Dear Steffen, I stumbled upon this old thread[1] about the possibility of getting pcrypt work for dm-crypt. About around the same time dm-crypt got parallel support[2] but as far as I understand the patch only enabled parallelism if there are multiple simultaneous requests, but still goes single threaded on a single I/O submitter (rsync for example): "This patch changes the crypto workqueue to be per CPU. This means that as long as the IO submitter (or the interrupt target CPUs for reads) runs on different CPUs the encryption work will be also parallel." Currently pcrypt still only deals with AEAD[3]; is there any chance you could revisit the old work you were mentioning in the discussion[1]? Many thanks! [1] https://www.redhat.com/archives/dm-devel/2010-June/msg00036.html [2] https://lwn.net/Articles/390075/ [3] https://github.com/torvalds/linux/blob/master/crypto/pcrypt.c#L346 -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
