On 7/2/2020 7:36 AM, Herbert Xu wrote:
> The arc4 algorithm requires storing state in the request context
> in order to allow more than one encrypt/decrypt operation. As this
> driver does not seem to do that, it means that using it for more
> than one operation is broken.
>
The fact that smth. i
On 6/30/2020 3:20 PM, Ard Biesheuvel wrote:
> Even though the sahara driver implements asynchronous versions of
> ecb(aes) and cbc(aes), the fallbacks it allocates are required to be
> synchronous. Given that SIMD based software implementations are usually
> asynchronous as well, even though they r
On 6/30/2020 3:20 PM, Ard Biesheuvel wrote:
> Even though the mxs-dcp driver implements asynchronous versions of
> ecb(aes) and cbc(aes), the fallbacks it allocates are required to be
> synchronous. Given that SIMD based software implementations are usually
> asynchronous as well, even though they
If users don't specify NUMA node, the driver will use the ZIP module near
the CPU allocating acomp. Otherwise, it uses the ZIP module according to
the requirement of users.
Cc: Zhou Wang
Signed-off-by: Barry Song
---
drivers/crypto/hisilicon/zip/zip.h| 2 +-
drivers/crypto/hisilicon/zip
For a typical Linux server, probably there are multiple ZIP modules.
For example, numa node0 has a compressor, numa node2 has a same module.
Some drivers are automatically using the module near the CPU calling
acomp_alloc.
But it isn't necessarily correct. Just like memory allocation API like
kmall
zswap is allocating acomp on one different cpu with those cpus which will
eventually committing acomp_req. this patch specifies the numa node to
help compression/decompression done by local (de)compressors hardware.
Cc: Seth Jennings
Cc: Dan Streetman
Cc: Vitaly Wool
Cc: Herbert Xu
Cc: David S
For a Linux server with NUMA, there are possibly multiple (de)compressors
which are either local or remote to some NUMA node. Some drivers will
automatically use the (de)compressor near the CPU calling acomp_alloc().
However, it is not necessarily correct because users who send acomp_req
could be f
