[dpdk-dev] [EXT] [dpdk-dev v1] test/crypto: maxlen calculation update

[Akhil Goyal]

> Update the calculation of the max length needed when converting mbuf to
> data vec in partial digest test case. This update make sure the enough
> vec buffers are allocated for the appended digest in sgl op for QAT raw
> datapath api.
> 
> Fixes: 4868f6591c6f ("test/crypto: add cases for raw datapath API")
> Cc: roy.fan.zhang at intel.com
> 
> Signed-off-by: Kai Ji <kai.ji at intel.com>
> ---
>  app/test/test_cryptodev.c | 35 +++++++++++++++++++++++++++++++----
>  1 file changed, 31 insertions(+), 4 deletions(-)
> 
> diff --git a/app/test/test_cryptodev.c b/app/test/test_cryptodev.c
> index 16d770a17f..ea46911648 100644
> --- a/app/test/test_cryptodev.c
> +++ b/app/test/test_cryptodev.c
> @@ -167,6 +167,10 @@ post_process_raw_dp_op(void *user_data,
> 	uint32_t index __rte_unused,
>  			RTE_CRYPTO_OP_STATUS_ERROR;
>  }
> 
> +static struct crypto_testsuite_params testsuite_params = { NULL };
> +struct crypto_testsuite_params *p_testsuite_params = &testsuite_params;
> +static struct crypto_unittest_params unittest_params;
> +
>  void
>  process_sym_raw_dp_op(uint8_t dev_id, uint16_t qp_id,
>  		struct rte_crypto_op *op, uint8_t is_cipher, uint8_t is_auth,
> @@ -181,6 +185,7 @@ process_sym_raw_dp_op(uint8_t dev_id, uint16_t
> qp_id,
>  	struct rte_crypto_sgl sgl;
>  	uint32_t max_len;
>  	union rte_cryptodev_session_ctx sess;
> +	uint64_t auth_end_iova;
>  	uint32_t count = 0;
>  	struct rte_crypto_raw_dp_ctx *ctx;
>  	uint32_t cipher_offset = 0, cipher_len = 0, auth_offset = 0,
> @@ -190,6 +195,9 @@ process_sym_raw_dp_op(uint8_t dev_id, uint16_t
> qp_id,
>  	int ctx_service_size;
>  	int32_t status = 0;
>  	int enqueue_status, dequeue_status;
> +	struct crypto_unittest_params *ut_params = &unittest_params;
> +	/* oop is not supported in raw hw dp api*/
> +	int is_sgl = sop->m_src->nb_segs > 1;

There is a patch series pending to be merged which support oop in raw dp api.
Can we sync this patch based on that?
https://patchwork.dpdk.org/project/dpdk/patch/20210907075957.28848-4-hemant.agrawal@nxp.com/

> 
>  	ctx_service_size = rte_cryptodev_get_raw_dp_ctx_size(dev_id);
>  	if (ctx_service_size < 0) {
> @@ -255,6 +263,29 @@ process_sym_raw_dp_op(uint8_t dev_id, uint16_t
> qp_id,
>  		digest.va = (void *)sop->auth.digest.data;
>  		digest.iova = sop->auth.digest.phys_addr;
> 
> +		if (is_sgl) {
> +			uint32_t remaining_off = auth_offset + auth_len;
> +			struct rte_mbuf *sgl_buf = sop->m_src;
> +
> +			while (remaining_off >=
> rte_pktmbuf_data_len(sgl_buf)
> +					&& sgl_buf->next != NULL) {
> +				remaining_off -=
> rte_pktmbuf_data_len(sgl_buf);
> +				sgl_buf = sgl_buf->next;
> +			}
> +
> +			auth_end_iova = (uint64_t)rte_pktmbuf_iova_offset(
> +				sgl_buf, remaining_off);
> +		} else {
> +			/* oop is not supported in raw hw dp api */
> +			auth_end_iova = rte_pktmbuf_iova(op->sym->m_src)
> +
> +							 auth_offset +
> auth_len;
> +		}
> +		/* Then check if digest-encrypted conditions are met */
> +		if ((auth_offset + auth_len < cipher_offset + cipher_len) &&
> +				(digest.iova == auth_end_iova) && is_sgl)
> +			max_len = RTE_MAX(max_len, auth_offset +
> auth_len +
> +				ut_params->auth_xform.auth.digest_length);
> +
>  	} else if (is_cipher) {
>  		cipher_offset = sop->cipher.data.offset;
>  		cipher_len = sop->cipher.data.length;
> @@ -477,10 +508,6 @@ process_crypto_request(uint8_t dev_id, struct
> rte_crypto_op *op)
>  	return op;
>  }
> 
> -static struct crypto_testsuite_params testsuite_params = { NULL };
> -struct crypto_testsuite_params *p_testsuite_params = &testsuite_params;
> -static struct crypto_unittest_params unittest_params;
> -
>  static int
>  testsuite_setup(void)
>  {
> --
> 2.17.1