Hi Marcin/Konstantin,
>
> Add new API allowing to process crypto operations in a synchronous
> manner. Operations are performed on a set of SG arrays.
>
> Sync mode is selected by setting appropriate flag in an xform
> type number. Cryptodevs which allows CPU crypto operation mode have to
> use RTE_CRYPTODEV_FF_SYM_CPU_CRYPTO capability.
There is no change in xform. This description need to be updated. I think
It was not edited while you removed that xform changes.
Documentation missing in this patch.
>
> Signed-off-by: Konstantin Ananyev <konstantin.anan...@intel.com>
> Signed-off-by: Marcin Smoczynski <marcinx.smoczyn...@intel.com>
> ---
> lib/librte_cryptodev/rte_crypto_sym.h | 63 ++++++++++++++++++-
> lib/librte_cryptodev/rte_cryptodev.c | 35 ++++++++++-
> lib/librte_cryptodev/rte_cryptodev.h | 22 ++++++-
> lib/librte_cryptodev/rte_cryptodev_pmd.h | 21 ++++++-
> .../rte_cryptodev_version.map | 1 +
> 5 files changed, 138 insertions(+), 4 deletions(-)
>
> diff --git a/lib/librte_cryptodev/rte_crypto_sym.h
> b/lib/librte_cryptodev/rte_crypto_sym.h
> index bc356f6ff..d6f3105fe 100644
> --- a/lib/librte_cryptodev/rte_crypto_sym.h
> +++ b/lib/librte_cryptodev/rte_crypto_sym.h
> @@ -1,5 +1,5 @@
> /* SPDX-License-Identifier: BSD-3-Clause
> - * Copyright(c) 2016-2019 Intel Corporation
> + * Copyright(c) 2016-2020 Intel Corporation
> */
>
> #ifndef _RTE_CRYPTO_SYM_H_
> @@ -25,6 +25,67 @@ extern "C" {
> #include <rte_mempool.h>
> #include <rte_common.h>
>
> +/**
> + * Crypto IO Vector (in analogy with struct iovec)
> + * Supposed be used to pass input/output data buffers for crypto data-path
> + * functions.
> + */
> +struct rte_crypto_vec {
> + /** virtual address of the data buffer */
> + void *base;
> + /** IOVA of the data buffer */
> + rte_iova_t *iova;
> + /** length of the data buffer */
> + uint32_t len;
> +};
> +
> +/**
> + * Crypto scatter-gather list descriptor. Consists of a pointer to an array
> + * of Crypto IO vectors with its size.
> + */
> +struct rte_crypto_sgl {
> + /** start of an array of vectors */
> + struct rte_crypto_vec *vec;
> + /** size of an array of vectors */
> + uint32_t num;
> +};
> +
> +/**
> + * Synchronous operation descriptor.
> + * Supposed to be used with CPU crypto API call.
> + */
> +struct rte_crypto_sym_vec {
> + /** array of SGL vectors */
> + struct rte_crypto_sgl *sgl;
> + /** array of pointers to IV */
> + void **iv;
> + /** array of pointers to AAD */
> + void **aad;
> + /** array of pointers to digest */
> + void **digest;
> + /**
> + * array of statuses for each operation:
> + * - 0 on success
> + * - errno on error
> + */
> + int32_t *status;
> + /** number of operations to perform */
> + uint32_t num;
> +};
> +
> +/**
> + * used for cpu_crypto_process_bulk() to specify head/tail offsets
> + * for auth/cipher processing.
> + */
> +union rte_crypto_sym_ofs {
> + uint64_t raw;
> + struct {
> + struct {
> + uint16_t head;
> + uint16_t tail;
> + } auth, cipher;
> + } ofs;
> +};
>
> /** Symmetric Cipher Algorithms */
> enum rte_crypto_cipher_algorithm {
> diff --git a/lib/librte_cryptodev/rte_cryptodev.c
> b/lib/librte_cryptodev/rte_cryptodev.c
> index 5c6359b5c..889d61319 100644
> --- a/lib/librte_cryptodev/rte_cryptodev.c
> +++ b/lib/librte_cryptodev/rte_cryptodev.c
> @@ -1,5 +1,5 @@
> /* SPDX-License-Identifier: BSD-3-Clause
> - * Copyright(c) 2015-2017 Intel Corporation
> + * Copyright(c) 2015-2020 Intel Corporation
> */
>
> #include <sys/types.h>
> @@ -494,6 +494,8 @@ rte_cryptodev_get_feature_name(uint64_t flag)
> return "RSA_PRIV_OP_KEY_QT";
> case RTE_CRYPTODEV_FF_DIGEST_ENCRYPTED:
> return "DIGEST_ENCRYPTED";
> + case RTE_CRYPTODEV_FF_SYM_CPU_CRYPTO:
> + return "SYM_CPU_CRYPTO";
Update needed in the doc/guides/cryptodevs/features/default.ini
