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| author | Iuliana Prodan <iuliana.prodan@nxp.com> | 2020-10-26 21:06:26 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2020-11-06 14:29:11 +1100 |
| commit | 2d653936eb2cf613526290caa512b46e4c0d71ae (patch) | |
| tree | edca7dbf57f0dfeec1cbbc8edc2edbdf1e6259fb /drivers/crypto/caam | |
| parent | 09a5ef9644bc0e167984136b711eb08206733af8 (diff) | |
| download | linux-2d653936eb2cf613526290caa512b46e4c0d71ae.tar.gz | |
crypto: caam - enable crypto-engine retry mechanism
Use the new crypto_engine_alloc_init_and_set() function to initialize crypto-engine and enable retry mechanism. Set the maximum size for crypto-engine software queue based on Job Ring size (JOBR_DEPTH) and a threshold (reserved for the non-crypto-API requests that are not passed through crypto-engine). The callback for do_batch_requests is NULL, since CAAM doesn't support linked requests. Signed-off-by: Iuliana Prodan <iuliana.prodan@nxp.com> Reviewed-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/caam')
| -rw-r--r-- | drivers/crypto/caam/intern.h | 8 | ||||
| -rw-r--r-- | drivers/crypto/caam/jr.c | 4 |
2 files changed, 11 insertions, 1 deletions
diff --git a/drivers/crypto/caam/intern.h b/drivers/crypto/caam/intern.h index 9112279a4de0..7d45b21bd55a 100644 --- a/drivers/crypto/caam/intern.h +++ b/drivers/crypto/caam/intern.h @@ -16,6 +16,14 @@ /* Currently comes from Kconfig param as a ^2 (driver-required) */ #define JOBR_DEPTH (1 << CONFIG_CRYPTO_DEV_FSL_CAAM_RINGSIZE) +/* + * Maximum size for crypto-engine software queue based on Job Ring + * size (JOBR_DEPTH) and a THRESHOLD (reserved for the non-crypto-API + * requests that are not passed through crypto-engine) + */ +#define THRESHOLD 15 +#define CRYPTO_ENGINE_MAX_QLEN (JOBR_DEPTH - THRESHOLD) + /* Kconfig params for interrupt coalescing if selected (else zero) */ #ifdef CONFIG_CRYPTO_DEV_FSL_CAAM_INTC #define JOBR_INTC JRCFG_ICEN diff --git a/drivers/crypto/caam/jr.c b/drivers/crypto/caam/jr.c index 6f669966ba2c..7f2b1101f567 100644 --- a/drivers/crypto/caam/jr.c +++ b/drivers/crypto/caam/jr.c @@ -550,7 +550,9 @@ static int caam_jr_probe(struct platform_device *pdev) } /* Initialize crypto engine */ - jrpriv->engine = crypto_engine_alloc_init(jrdev, false); + jrpriv->engine = crypto_engine_alloc_init_and_set(jrdev, true, NULL, + false, + CRYPTO_ENGINE_MAX_QLEN); if (!jrpriv->engine) { dev_err(jrdev, "Could not init crypto-engine\n"); return -ENOMEM; |