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| author | Seth Jennings <sjenning@linux.vnet.ibm.com> | 2012-07-19 09:42:41 -0500 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2012-08-01 17:47:56 +0800 |
| commit | a82ac8eb69947478a8ec7c89cda116c4b40d1b4b (patch) | |
| tree | fc3afca384a9934fe62f85b7a35893db6ea2fd9b /crypto/Kconfig | |
| parent | fdc39619b41091b3faa6987457f30077fc3dacb4 (diff) | |
| download | linux-crypto-a82ac8eb69947478a8ec7c89cda116c4b40d1b4b.tar.gz linux-crypto-a82ac8eb69947478a8ec7c89cda116c4b40d1b4b.zip | |
powerpc/crypto: add 842 crypto driver
This patch add the 842 cryptographic API driver that
submits compression requests to the 842 hardware compression
accelerator driver (nx-compress).
If the hardware accelerator goes offline for any reason
(dynamic disable, migration, etc...), this driver will use LZO
as a software failover for all future compression requests.
For decompression requests, the 842 hardware driver contains
a software implementation of the 842 decompressor to support
the decompression of data that was compressed before the accelerator
went offline.
Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com>
Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/Kconfig')
| -rw-r--r-- | crypto/Kconfig | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig index fe8ed62e..cbcc0e2e 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -1039,6 +1039,15 @@ config CRYPTO_LZO help This is the LZO algorithm. +config CRYPTO_842 + tristate "842 compression algorithm" + depends on CRYPTO_DEV_NX_COMPRESS + # 842 uses lzo if the hardware becomes unavailable + select LZO_COMPRESS + select LZO_DECOMPRESS + help + This is the 842 algorithm. + comment "Random Number Generation" config CRYPTO_ANSI_CPRNG |