On Tue, Jan 12, 2016 at 06:31:19PM -0500, Mikulas Patocka wrote: > On Mon, 4 Jan 2016, Mark Brown wrote: > > The main thing the out of tree req-dm-crypt code is doing was using a > > larger block size which does seem like a reasonable thing to allow > > people to tune for performance tradeofffs but I undertand that's a lot > > harder to achieve in a good way than one might hope. > But as Milan pointed out, that larger block size doesn't work if you > process requests with different sizes - the data encrypted with one > request size won't match if you decrypt them with a different request > size. Sure, you need to fix that block size. > Does the hardware encryption you are optimizing for allow setting > arbitrary tweaks in XTS mode? What is the specific driver you are > optimizing for? This isn't targeted at a specific driver or system, it's trying to make dm-crypt better able to make use of hardware acceleration in general.
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