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authorDaniel Axtens <dja@axtens.net>2017-03-15 23:37:37 +1100
committerHerbert Xu <herbert@gondor.apana.org.au>2017-03-24 22:02:54 +0800
commit146c8688d99c574d9ff0af17eca51bbd6402a57f (patch)
tree0bfe26c5cad237ed9aa49283fa7e72e24059a467 /crypto
parentb01df1c16c9a6f7a14f843d3ac6b9eef5a7bb17e (diff)
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 <anton@samba.org> Signed-off-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/Kconfig8
1 files changed, 8 insertions, 0 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 9cf63dd84364..6854c1fe54b7 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -522,6 +522,14 @@ config CRYPTO_CRCT10DIF_VPMSUM
multiply-sum (vpmsum) instructions, introduced in POWER8. Enable on
POWER8 and newer processors for improved performance.
+config CRYPTO_VPMSUM_TESTER
+ tristate "Powerpc64 vpmsum hardware acceleration tester"
+ depends on CRYPTO_CRCT10DIF_VPMSUM && CRYPTO_CRC32C_VPMSUM
+ help
+ Stress test for CRC32c and CRC-T10DIF algorithms implemented with
+ POWER8 vpmsum instructions.
+ Unless you are testing these algorithms, you don't need this.
+
config CRYPTO_GHASH
tristate "GHASH digest algorithm"
select CRYPTO_GF128MUL

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