Re: crypto/nx842: Ignore queue overflow informative error

Haren Myneni writes: > NX842 coprocessor sets bit 3 if queue is overflow. It is just for > information to the user. So the driver prints this informative message > and ignores it. What queue, and what happens when the queue overflows? It seems like *something* would

[PATCH 2/4] crypto: powerpc - Re-enable non-REFLECTed CRCs

/antonblanchard/crc32-vpmsum) That implementation is available under GPLv2+, so we're OK from a licensing point of view: https://github.com/antonblanchard/crc32-vpmsum/blob/master/LICENSE.TXT As CRC32c requires REFLECT, add that #define. Cc: Anton Blanchard <an...@samba.org> Signed-off-by:

[PATCH 3/4] crypto: powerpc - Add CRC-T10DIF acceleration

T10DIF is a CRC16 used heavily in NVMe. It turns out we can accelerate it with a CRC32 library and a few little tricks. Provide the accelerator based the refactored CRC32 code. Cc: Anton Blanchard <an...@samba.org> Thanks-to: Hong Bo Peng <pen...@cn.ibm.com> Signed-off-by: Dani

[PATCH 1/4] crypto: powerpc - Factor out the core CRC vpmsum algorithm

, and then #includes the core algorithm file. Cc: Anton Blanchard <an...@samba.org> Signed-off-by: Daniel Axtens <d...@axtens.net> -- It's possible at this point to argue that the address of the constant tables should be passed in to the function, rather than doing this somewhat un

[PATCH 4/4] crypto: powerpc - Stress test for vpmsum implementations

vpmsum implementations often don't kick in for short test vectors. This is a simple test module that does a configurable number of random tests, each up to 64kB and each with random offsets. Both CRC-T10DIF and CRC32C are tested. Cc: Anton Blanchard <an...@samba.org> Signed-off-by: Daniel

RE: [PATCH 1/4] crypto: powerpc - Factor out the core CRC vpmsum algorithm

Hi David, > While not part of this change, the unrolled loops look as though > they just destroy the cpu cache. > I'd like be convinced that anything does CRC over long enough buffers > to make it a gain at all. > > With modern (not that modern now) superscalar cpus you can often > get the loop

Re: [PATCH 1/4] crypto: powerpc - Factor out the core CRC vpmsum algorithm

> So although this sits in arch/powerpc, it's heavy on the crypto which is > not my area of expertise (to say the least!), so I think it should > probably go via Herbert and the crypto tree? That was my thought as well. Sorry - probably should have put that in the comments somewhere. Regards,

[PATCH] crypto: powerpc - Fix initialisation of crc32c context

.org> Cc: sta...@vger.kernel.org Signed-off-by: Daniel Axtens <d...@axtens.net> --- arch/powerpc/crypto/crc32c-vpmsum_glue.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/crypto/crc32c-vpmsum_glue.c b/arch/powerpc/crypto/crc32c-vpmsum_glue.c index 9fa046d56eb