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| author | Valentin Ciocoi Radulescu <valentin.ciocoi@nxp.com> | 2020-01-31 17:15:56 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2020-02-13 12:05:25 +0300 |
| commit | 11144416a7557372e64f68c729f3d7cb8890a6d1 (patch) | |
| tree | c7274025a88755a8807e338e6e09082353c4c065 /drivers/crypto/caam/qi.h | |
| parent | 21f802cc9896743c61bacac6cb1de109a2cfc8bc (diff) | |
| download | linux-11144416a7557372e64f68c729f3d7cb8890a6d1.tar.xz | |
crypto: caam/qi - optimize frame queue cleanup
Add reference counter incremented for each frame enqueued in CAAM
and replace unconditional sleep in empty_caam_fq() with polling the
reference counter.
When CONFIG_CRYPTO_MANAGER_EXTRA_TESTS=y boot time on LS1043A
platform with this optimization decreases from ~1100s to ~11s.
Signed-off-by: Valentin Ciocoi Radulescu <valentin.ciocoi@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/qi.h')
| -rw-r--r-- | drivers/crypto/caam/qi.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/crypto/caam/qi.h b/drivers/crypto/caam/qi.h index 848958951f68..5894f16f8fe3 100644 --- a/drivers/crypto/caam/qi.h +++ b/drivers/crypto/caam/qi.h @@ -3,7 +3,7 @@ * Public definitions for the CAAM/QI (Queue Interface) backend. * * Copyright 2013-2016 Freescale Semiconductor, Inc. - * Copyright 2016-2017 NXP + * Copyright 2016-2017, 2020 NXP */ #ifndef __QI_H__ @@ -52,6 +52,7 @@ enum optype { * @context_a: shared descriptor dma address * @req_fq: to-CAAM request frame queue * @rsp_fq: from-CAAM response frame queue + * @refcnt: reference counter incremented for each frame enqueued in to-CAAM FQ * @cpu: cpu on which to receive CAAM response * @op_type: operation type * @qidev: device pointer for CAAM/QI backend @@ -62,6 +63,7 @@ struct caam_drv_ctx { dma_addr_t context_a; struct qman_fq *req_fq; struct qman_fq *rsp_fq; + refcount_t refcnt; int cpu; enum optype op_type; struct device *qidev; |