diff options
| author |   Dan Streetman <ddstreet@ieee.org> | 2015-05-07 13:49:18 -0400 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2015-05-11 15:06:46 +0800 |
| commit | 959e6659b6f74ec1fa4d391a3b88d63dc0189f36 (patch) | |
| tree | 13e716f492a528a093e061fec08e7ed74dbaddcc /include | |
| parent | crypto: nx - add NX-842 platform frontend driver (diff) | |
| download | linux-dev-959e6659b6f74ec1fa4d391a3b88d63dc0189f36.tar.xz linux-dev-959e6659b6f74ec1fa4d391a3b88d63dc0189f36.zip | |
crypto: nx - add nx842 constraints
Add "constraints" for the NX-842 driver. The constraints are used to
indicate what the current NX-842 platform driver is capable of. The
constraints tell the NX-842 user what alignment, min and max length, and
length multiple each provided buffers should conform to. These are
required because the 842 hardware requires buffers to meet specific
constraints that vary based on platform - for example, the pSeries
max length is much lower than the PowerNV max length.
Signed-off-by: Dan Streetman <ddstreet@ieee.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/nx842.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/nx842.h b/include/linux/nx842.h index d919c22b7fd6..aa1a97e90dea 100644 --- a/include/linux/nx842.h +++ b/include/linux/nx842.h @@ -5,6 +5,15 @@ #define NX842_MEM_COMPRESS __NX842_PSERIES_MEM_COMPRESS +struct nx842_constraints { + int alignment; + int multiple; + int minimum; + int maximum; +}; + +int nx842_constraints(struct nx842_constraints *constraints); + int nx842_compress(const unsigned char *in, unsigned int in_len, unsigned char *out, unsigned int *out_len, void *wrkmem); int nx842_decompress(const unsigned char *in, unsigned int in_len, |