Re: [dpdk-dev] [PATCH] crypto/mlx5: support 1MB data-unit

[Matan Azrad <matan@nvidia.com>]

From: Raja Zidane
> Add 1MB data-unit length to the capability's bitmap.
> Handle 1MB data-unit length in the mlx5 session create operation, and expose
> its capability in the mlx5 capabilities.
> 
> Signed-off-by: Raja Zidane <rzidane@nvidia.com>
> Acked-by: Matan Azrad <matan@nvidia.com>
> ---
>  doc/guides/cryptodevs/mlx5.rst    | 2 +-
>  drivers/crypto/mlx5/mlx5_crypto.c | 8 +++++++-
>  examples/l2fwd-crypto/main.c      | 5 +++++
>  lib/cryptodev/rte_cryptodev.h     | 1 +
>  4 files changed, 14 insertions(+), 2 deletions(-)
> 
> diff --git a/doc/guides/cryptodevs/mlx5.rst b/doc/guides/cryptodevs/mlx5.rst
> index 68bfdf3a83..bc6ae82d40 100644
> --- a/doc/guides/cryptodevs/mlx5.rst
> +++ b/doc/guides/cryptodevs/mlx5.rst
> @@ -147,7 +147,7 @@ Limitations
>  -----------
> 
>  - AES-XTS keys provided in xform must include keytag and should be wrapped.
> -- The supported data-unit lengths are 512B and 1KB. In case the `dataunit_len`
> +- The supported data-unit lengths are 512B and 4KB. In case the
> +`dataunit_len`

Probably typo caused eventually wrong change in the doc.
We need to add 1M as supported from xform conf in this sentence.

>    is not provided in the cipher xform, the OP length is limited to the above
>    values and 1MB.
> 
> diff --git a/drivers/crypto/mlx5/mlx5_crypto.c
> b/drivers/crypto/mlx5/mlx5_crypto.c
> index f430d8cde0..c3a9d2d8f7 100644
> --- a/drivers/crypto/mlx5/mlx5_crypto.c
> +++ b/drivers/crypto/mlx5/mlx5_crypto.c
> @@ -59,7 +59,8 @@ const struct rte_cryptodev_capabilities
> mlx5_crypto_caps[] = {
>  				},
>  				.dataunit_set =
> 
> 	RTE_CRYPTO_CIPHER_DATA_UNIT_LEN_512_BYTES |
> -
> 	RTE_CRYPTO_CIPHER_DATA_UNIT_LEN_4096_BYTES,
> +
> 	RTE_CRYPTO_CIPHER_DATA_UNIT_LEN_4096_BYTES |
> +
> 	RTE_CRYPTO_CIPHER_DATA_UNIT_LEN_1_MEGABYTES,
>  			}, }
>  		}, }
>  	},
> @@ -221,6 +222,11 @@ mlx5_crypto_sym_session_configure(struct
> rte_cryptodev *dev,
> 
> ((uint32_t)MLX5_BLOCK_SIZE_4096B <<
>  					     MLX5_BLOCK_SIZE_OFFSET);
>  		break;
> +	case 1048576:
> +		sess_private_data->bsp_res = rte_cpu_to_be_32
> +					     ((uint32_t)MLX5_BLOCK_SIZE_1MB
> <<
> +					     MLX5_BLOCK_SIZE_OFFSET);
> +		break;
>  	default:
>  		DRV_LOG(ERR, "Cipher data unit length is not supported.");
>  		return -ENOTSUP;
> diff --git a/examples/l2fwd-crypto/main.c b/examples/l2fwd-crypto/main.c
> index 04a3bdace2..4d9f8861af 100644
> --- a/examples/l2fwd-crypto/main.c
> +++ b/examples/l2fwd-crypto/main.c
> @@ -2218,6 +2218,11 @@ check_capabilities(struct l2fwd_crypto_options
> *options, uint8_t cdev_id)
> 
> 	RTE_CRYPTO_CIPHER_DATA_UNIT_LEN_4096_BYTES))
>  						ret = -1;
>  					break;
> +				case 1048576:
> +					if (!(cap->sym.cipher.dataunit_set &
> +
> 	RTE_CRYPTO_CIPHER_DATA_UNIT_LEN_1_MEGABYTES))
> +						ret = -1;
> +					break;
>  				default:
>  					ret = -1;
>  				}
> diff --git a/lib/cryptodev/rte_cryptodev.h b/lib/cryptodev/rte_cryptodev.h index
> 56e3868ada..59ea5a54df 100644
> --- a/lib/cryptodev/rte_cryptodev.h
> +++ b/lib/cryptodev/rte_cryptodev.h
> @@ -102,6 +102,7 @@ struct rte_crypto_param_range {
>   */
>  #define RTE_CRYPTO_CIPHER_DATA_UNIT_LEN_512_BYTES
> RTE_BIT32(0)
>  #define RTE_CRYPTO_CIPHER_DATA_UNIT_LEN_4096_BYTES
> RTE_BIT32(1)
> +#define RTE_CRYPTO_CIPHER_DATA_UNIT_LEN_1_MEGABYTES
> RTE_BIT32(2)
> 
>  /**
>   * Symmetric Crypto Capability
> --
> 2.17.1