diff options
| author |   Gerald Schaefer <gerald.schaefer@de.ibm.com> | 2011-05-04 15:09:44 +1000 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2011-05-04 15:09:44 +1000 |
| commit | 0200f3ecc19660bebeabbcbaf212957fcf1dbf8f (patch) | |
| tree | 584b5b936a58f3d9db09fca73ed10bdf20f942f5 /drivers/crypto | |
| parent | crypto: tcrypt - CTR mode speed test for AES (diff) | |
| download | linux-dev-0200f3ecc19660bebeabbcbaf212957fcf1dbf8f.tar.xz linux-dev-0200f3ecc19660bebeabbcbaf212957fcf1dbf8f.zip | |
crypto: s390 - add System z hardware support for CTR mode
This patch adds System z hardware acceleration support for AES, DES
and 3DES in CTR mode. The hardware support is available starting with
System z196.
Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/Kconfig | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig index dc601ff4bcfd..c64c3807f516 100644 --- a/drivers/crypto/Kconfig +++ b/drivers/crypto/Kconfig @@ -119,9 +119,12 @@ config CRYPTO_DES_S390 select CRYPTO_ALGAPI select CRYPTO_BLKCIPHER help - This us the s390 hardware accelerated implementation of the + This is the s390 hardware accelerated implementation of the DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3). + As of z990 the ECB and CBC mode are hardware accelerated. + As of z196 the CTR mode is hardware accelerated. + config CRYPTO_AES_S390 tristate "AES cipher algorithms" depends on S390 @@ -135,7 +138,8 @@ config CRYPTO_AES_S390 for 128 bit keys. As of z10 the ECB and CBC modes are hardware accelerated for all AES key sizes. - As of z196 the XTS mode is hardware accelerated for 256 and + As of z196 the CTR mode is hardware accelerated for all AES + key sizes and XTS mode is hardware accelerated for 256 and 512 bit keys. config S390_PRNG |