Commit 2d653936 authored by Iuliana Prodan's avatar Iuliana Prodan Committed by Herbert Xu
Browse files

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: default avatarIuliana Prodan <iuliana.prodan@nxp.com>
Reviewed-by: default avatarHoria Geantă <horia.geanta@nxp.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 09a5ef96

drivers/crypto/caam/intern.h

+8 −0
Original line number Diff line number Diff line
@@ -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

drivers/crypto/caam/jr.c

+3 −1
Original line number Diff line number Diff line
@@ -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;