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| author | Kim Phillips <kim.phillips@freescale.com> | 2012-07-14 02:49:28 +0400 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2012-08-01 13:47:31 +0400 |
| commit | 61bb86bba169507a5f223b94b9176c32c84b4721 (patch) | |
| tree | 265d8f59f76c2e6ff8aba29ea4663dff4033ab0a /drivers/crypto/caam/caamrng.c | |
| parent | 95bcaa39053ff518021572ca00ebf626ee8cbaf8 (diff) | |
| download | linux-61bb86bba169507a5f223b94b9176c32c84b4721.tar.xz | |
crypto: caam - set descriptor sharing type to SERIAL
SHARE_WAIT, whilst more optimal for association-less crypto,
has the ability to start thrashing the CCB descriptor/key
caches, given high levels of traffic across multiple security
associations (and thus keys).
Switch to using the SERIAL sharing type, which prefers
the last used CCB for the SA. On a 2-DECO platform
such as the P3041, this can improve performance by
about 3.7%.
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/caam/caamrng.c')
| -rw-r--r-- | drivers/crypto/caam/caamrng.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/crypto/caam/caamrng.c b/drivers/crypto/caam/caamrng.c index ccedb54317e1..d1939a9539c0 100644 --- a/drivers/crypto/caam/caamrng.c +++ b/drivers/crypto/caam/caamrng.c @@ -193,7 +193,7 @@ static inline void rng_create_sh_desc(struct caam_rng_ctx *ctx) struct device *jrdev = ctx->jrdev; u32 *desc = ctx->sh_desc; - init_sh_desc(desc, HDR_SHARE_WAIT); + init_sh_desc(desc, HDR_SHARE_SERIAL); /* Propagate errors from shared to job descriptor */ append_cmd(desc, SET_OK_NO_PROP_ERRORS | CMD_LOAD); |