[dpdk-dev] [PATCH v2 1/4] common/mlx5: add user memory registration bits

Ori Kam orika at nvidia.com
Mon Mar 29 11:29:04 CEST 2021


Hi,

> -----Original Message-----
> From: Suanming Mou <suanmingm at nvidia.com>
> This commit adds the UMR capability bits.
> 
> Signed-off-by: Suanming Mou <suanmingm at nvidia.com>
> ---
>  drivers/common/mlx5/linux/meson.build | 2 ++
>  drivers/common/mlx5/mlx5_devx_cmds.c  | 5 +++++
>  drivers/common/mlx5/mlx5_devx_cmds.h  | 3 +++
>  3 files changed, 10 insertions(+)
> 
> diff --git a/drivers/common/mlx5/linux/meson.build
> b/drivers/common/mlx5/linux/meson.build
> index 220de35420..5d6a861689 100644
> --- a/drivers/common/mlx5/linux/meson.build
> +++ b/drivers/common/mlx5/linux/meson.build
> @@ -186,6 +186,8 @@ has_sym_args = [
>  	'mlx5dv_dr_action_create_aso' ],
>  	[ 'HAVE_INFINIBAND_VERBS_H', 'infiniband/verbs.h',
>  	'INFINIBAND_VERBS_H' ],
> +        [ 'HAVE_MLX5_UMR_IMKEY', 'infiniband/mlx5dv.h',
> +        'MLX5_WQE_UMR_CTRL_FLAG_INLINE' ],
>  ]
>  config = configuration_data()
>  foreach arg:has_sym_args
> diff --git a/drivers/common/mlx5/mlx5_devx_cmds.c
> b/drivers/common/mlx5/mlx5_devx_cmds.c
> index c90e020643..268bcd0d99 100644
> --- a/drivers/common/mlx5/mlx5_devx_cmds.c
> +++ b/drivers/common/mlx5/mlx5_devx_cmds.c
> @@ -266,6 +266,7 @@ mlx5_devx_cmd_mkey_create(void *ctx,
>  	MLX5_SET(mkc, mkc, qpn, 0xffffff);
>  	MLX5_SET(mkc, mkc, pd, attr->pd);
>  	MLX5_SET(mkc, mkc, mkey_7_0, attr->umem_id & 0xFF);
> +	MLX5_SET(mkc, mkc, umr_en, attr->umr_en);
>  	MLX5_SET(mkc, mkc, translations_octword_size, translation_size);
>  	MLX5_SET(mkc, mkc, relaxed_ordering_write,
>  		 attr->relaxed_ordering_write);
> @@ -752,6 +753,10 @@ mlx5_devx_cmd_query_hca_attr(void *ctx,
>  						mini_cqe_resp_flow_tag);
>  	attr->mini_cqe_resp_l3_l4_tag = MLX5_GET(cmd_hca_cap, hcattr,
>  						 mini_cqe_resp_l3_l4_tag);
> +	attr->umr_indirect_mkey_disabled =
> +		MLX5_GET(cmd_hca_cap, hcattr,
> umr_indirect_mkey_disabled);
> +	attr->umr_modify_entity_size_disabled =
> +		MLX5_GET(cmd_hca_cap, hcattr,
> umr_modify_entity_size_disabled);
>  	if (attr->qos.sup) {
>  		MLX5_SET(query_hca_cap_in, in, op_mod,
>  			 MLX5_GET_HCA_CAP_OP_MOD_QOS_CAP |
> diff --git a/drivers/common/mlx5/mlx5_devx_cmds.h
> b/drivers/common/mlx5/mlx5_devx_cmds.h
> index 2826c0b2c6..67b5f771c6 100644
> --- a/drivers/common/mlx5/mlx5_devx_cmds.h
> +++ b/drivers/common/mlx5/mlx5_devx_cmds.h
> @@ -31,6 +31,7 @@ struct mlx5_devx_mkey_attr {
>  	uint32_t pg_access:1;
>  	uint32_t relaxed_ordering_write:1;
>  	uint32_t relaxed_ordering_read:1;
> +	uint32_t umr_en:1;
>  	struct mlx5_klm *klm_array;
>  	int klm_num;
>  };
> @@ -151,6 +152,8 @@ struct mlx5_hca_attr {
>  	uint32_t log_max_mmo_dma:5;
>  	uint32_t log_max_mmo_compress:5;
>  	uint32_t log_max_mmo_decompress:5;
> +	uint32_t umr_modify_entity_size_disabled:1;
> +	uint32_t umr_indirect_mkey_disabled:1;
>  };
> 
>  struct mlx5_devx_wq_attr {
> --
> 2.25.1

Acked-by: Ori Kam <orika at nvidia.com>
Best,
Ori


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