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authorKim Phillips <kim.phillips@freescale.com>2012-07-13 17:49:28 -0500
committerHerbert Xu <herbert@gondor.apana.org.au>2012-08-01 17:47:31 +0800
commit61bb86bba169507a5f223b94b9176c32c84b4721 (patch)
tree265d8f59f76c2e6ff8aba29ea4663dff4033ab0a /drivers/crypto
parent95bcaa39053ff518021572ca00ebf626ee8cbaf8 (diff)
downloadop-kernel-dev-61bb86bba169507a5f223b94b9176c32c84b4721.zip
op-kernel-dev-61bb86bba169507a5f223b94b9176c32c84b4721.tar.gz
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')
-rw-r--r--drivers/crypto/caam/caamalg.c8
-rw-r--r--drivers/crypto/caam/caamhash.c4
-rw-r--r--drivers/crypto/caam/caamrng.c2
3 files changed, 7 insertions, 7 deletions
diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c
index 0c1ea84..6b48295 100644
--- a/drivers/crypto/caam/caamalg.c
+++ b/drivers/crypto/caam/caamalg.c
@@ -205,7 +205,7 @@ static void init_sh_desc_key_aead(u32 *desc, struct caam_ctx *ctx,
{
u32 *key_jump_cmd;
- init_sh_desc(desc, HDR_SHARE_WAIT);
+ init_sh_desc(desc, HDR_SHARE_SERIAL);
/* Skip if already shared */
key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
@@ -302,7 +302,7 @@ static int aead_set_sh_desc(struct crypto_aead *aead)
desc = ctx->sh_desc_dec;
/* aead_decrypt shared descriptor */
- init_sh_desc(desc, HDR_SHARE_WAIT);
+ init_sh_desc(desc, HDR_SHARE_SERIAL);
/* Skip if already shared */
key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
@@ -564,7 +564,7 @@ static int ablkcipher_setkey(struct crypto_ablkcipher *ablkcipher,
/* ablkcipher_encrypt shared descriptor */
desc = ctx->sh_desc_enc;
- init_sh_desc(desc, HDR_SHARE_WAIT);
+ init_sh_desc(desc, HDR_SHARE_SERIAL);
/* Skip if already shared */
key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
JUMP_COND_SHRD);
@@ -605,7 +605,7 @@ static int ablkcipher_setkey(struct crypto_ablkcipher *ablkcipher,
/* ablkcipher_decrypt shared descriptor */
desc = ctx->sh_desc_dec;
- init_sh_desc(desc, HDR_SHARE_WAIT);
+ init_sh_desc(desc, HDR_SHARE_SERIAL);
/* Skip if already shared */
key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
JUMP_COND_SHRD);
diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c
index dca3c19..fbf3fe8 100644
--- a/drivers/crypto/caam/caamhash.c
+++ b/drivers/crypto/caam/caamhash.c
@@ -225,7 +225,7 @@ static inline void init_sh_desc_key_ahash(u32 *desc, struct caam_hash_ctx *ctx)
{
u32 *key_jump_cmd;
- init_sh_desc(desc, HDR_SHARE_WAIT);
+ init_sh_desc(desc, HDR_SHARE_SERIAL);
if (ctx->split_key_len) {
/* Skip if already shared */
@@ -311,7 +311,7 @@ static int ahash_set_sh_desc(struct crypto_ahash *ahash)
/* ahash_update shared descriptor */
desc = ctx->sh_desc_update;
- init_sh_desc(desc, HDR_SHARE_WAIT);
+ init_sh_desc(desc, HDR_SHARE_SERIAL);
/* Import context from software */
append_cmd(desc, CMD_SEQ_LOAD | LDST_SRCDST_BYTE_CONTEXT |
diff --git a/drivers/crypto/caam/caamrng.c b/drivers/crypto/caam/caamrng.c
index ccedb54..d1939a9 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);
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