[PATCH 1/4] net/mlx5/hws: definitions for Hash Split/Linear Lookup tbls

[Ali Alnubani]

Hello,

ci/iol-testing tried to apply this patchset on the main branch, even though it's intended for dpdk-next-net-mlx:
https://patches.dpdk.org/project/dpdk/patch/20230112134913.2632849-1-kliteyn@nvidia.com/

The helper script in dpdk-ci repo reports dpdk-next-net-mlx:
$ ./tools/pw_maintainers_cli.py --type series list-trees 26507
dpdk-next-net-mlx

Can you please help check and let me know if it's an issue I can help with?

Thanks,
Ali

> -----Original Message-----
> From: Yevgeny Kliteynik <kliteyn at nvidia.com>
> Sent: Thursday, January 12, 2023 3:49 PM
> To: Yevgeny Kliteynik <kliteyn at nvidia.com>; Slava Ovsiienko
> <viacheslavo at nvidia.com>; NBU-Contact-Thomas Monjalon (EXTERNAL)
> <thomas at monjalon.net>; Suanming Mou <suanmingm at nvidia.com>;
> Matan Azrad <matan at nvidia.com>
> Cc: dev at dpdk.org; Ori Kam <orika at nvidia.com>
> Subject: [PATCH 1/4] net/mlx5/hws: definitions for Hash Split/Linear Lookup
> tbls
> 
> Added PRM bits for new RTC types: Hash Split and Linear Lookup tables,
> as well as for HASH_RESULT field that contains hash result of the
> Hash Split table calculation.
> 
> Signed-off-by: Yevgeny Kliteynik <kliteyn at nvidia.com>
> ---
>  drivers/common/mlx5/mlx5_prm.h    | 26 +++++++++++++++++++++++---
>  drivers/net/mlx5/hws/mlx5dr_cmd.c |  2 ++
>  drivers/net/mlx5/hws/mlx5dr_cmd.h |  2 ++
>  3 files changed, 27 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/common/mlx5/mlx5_prm.h
> b/drivers/common/mlx5/mlx5_prm.h
> index 3790dc84b8..9294f65e24 100644
> --- a/drivers/common/mlx5/mlx5_prm.h
> +++ b/drivers/common/mlx5/mlx5_prm.h
> @@ -759,6 +759,7 @@ enum mlx5_modification_field {
>  	MLX5_MODI_OUT_IP_ECN = 0x73,
>  	MLX5_MODI_TUNNEL_HDR_DW_1 = 0x75,
>  	MLX5_MODI_GTPU_FIRST_EXT_DW_0 = 0x76,
> +	MLX5_MODI_HASH_RESULT = 0x81,
>  };
> 
>  /* Total number of metadata reg_c's. */
> @@ -2043,7 +2044,9 @@ struct mlx5_ifc_ft_fields_support_bits {
>   * Table 1872 - Flow Table Fields Supported 2 Format
>   */
>  struct mlx5_ifc_ft_fields_support_2_bits {
> -	u8 reserved_at_0[0xf];
> +	u8 reserved_at_0[0xd];
> +	u8 hash_result[0x1];
> +	u8 reserved_at_e[0x1];
>  	u8 tunnel_header_2_3[0x1];
>  	u8 tunnel_header_0_1[0x1];
>  	u8 macsec_syndrome[0x1];
> @@ -2178,7 +2181,9 @@ struct mlx5_ifc_wqe_based_flow_table_cap_bits {
>  	u8 log_max_num_rtc[0x5];
>  	u8 reserved_at_18[0x3];
>  	u8 log_max_num_header_modify_pattern[0x5];
> -	u8 reserved_at_20[0x3];
> +	u8 rtc_hash_split_table[0x1];
> +	u8 rtc_linear_lookup_table[0x1];
> +	u8 reserved_at_22[0x1];
>  	u8 stc_alloc_log_granularity[0x5];
>  	u8 reserved_at_28[0x3];
>  	u8 stc_alloc_log_max[0x5];
> @@ -2198,6 +2203,11 @@ struct mlx5_ifc_wqe_based_flow_table_cap_bits
> {
>  	u8 header_insert_type[0x10];
>  	u8 header_remove_type[0x10];
>  	u8 trivial_match_definer[0x20];
> +	u8 reserved_at_140[0x20];
> +	u8 reserved_at_160[0x18];
> +	u8 access_index_mode[0x8];
> +	u8 reserved_at_180[0x20];
> +	u8 linear_match_definer_reg_c3[0x20];
>  };
> 
>  union mlx5_ifc_hca_cap_union_bits {
> @@ -3215,6 +3225,11 @@ enum mlx5_ifc_rtc_update_mode {
>  	MLX5_IFC_RTC_STE_UPDATE_MODE_BY_OFFSET = 0x1,
>  };
> 
> +enum mlx5_ifc_rtc_access_mode {
> +	MLX5_IFC_RTC_STE_ACCESS_MODE_BY_HASH = 0x0,
> +	MLX5_IFC_RTC_STE_ACCESS_MODE_LINEAR = 0x1,
> +};
> +
>  enum mlx5_ifc_rtc_ste_format {
>  	MLX5_IFC_RTC_STE_FORMAT_8DW = 0x4,
>  	MLX5_IFC_RTC_STE_FORMAT_11DW = 0x5,
> @@ -3225,6 +3240,8 @@ enum mlx5_ifc_rtc_reparse_mode {
>  	MLX5_IFC_RTC_REPARSE_ALWAYS = 0x1,
>  };
> 
> +#define MLX5_IFC_RTC_LINEAR_LOOKUP_TBL_LOG_MAX 16
> +
>  struct mlx5_ifc_rtc_bits {
>  	u8 modify_field_select[0x40];
>  	u8 reserved_at_40[0x40];
> @@ -3232,7 +3249,10 @@ struct mlx5_ifc_rtc_bits {
>  	u8 reparse_mode[0x2];
>  	u8 reserved_at_84[0x4];
>  	u8 pd[0x18];
> -	u8 reserved_at_a0[0x13];
> +	u8 reserved_at_a0[0x9];
> +	u8 access_index_mode[0x3];
> +	u8 num_hash_definer[0x4];
> +	u8 reserved_at_b0[0x3];
>  	u8 log_depth[0x5];
>  	u8 log_hash_size[0x8];
>  	u8 ste_format[0x8];
> diff --git a/drivers/net/mlx5/hws/mlx5dr_cmd.c
> b/drivers/net/mlx5/hws/mlx5dr_cmd.c
> index 754a424bd7..c64f127de8 100644
> --- a/drivers/net/mlx5/hws/mlx5dr_cmd.c
> +++ b/drivers/net/mlx5/hws/mlx5dr_cmd.c
> @@ -264,6 +264,8 @@ mlx5dr_cmd_rtc_create(struct ibv_context *ctx,
>  		MLX5_IFC_RTC_STE_FORMAT_8DW);
>  	MLX5_SET(rtc, attr, pd, rtc_attr->pd);
>  	MLX5_SET(rtc, attr, update_index_mode, rtc_attr-
> >update_index_mode);
> +	MLX5_SET(rtc, attr, access_index_mode, rtc_attr-
> >access_index_mode);
> +	MLX5_SET(rtc, attr, num_hash_definer, rtc_attr-
> >num_hash_definer);
>  	MLX5_SET(rtc, attr, log_depth, rtc_attr->log_depth);
>  	MLX5_SET(rtc, attr, log_hash_size, rtc_attr->log_size);
>  	MLX5_SET(rtc, attr, table_type, rtc_attr->table_type);
> diff --git a/drivers/net/mlx5/hws/mlx5dr_cmd.h
> b/drivers/net/mlx5/hws/mlx5dr_cmd.h
> index 9fe493a8f9..5d8d779708 100644
> --- a/drivers/net/mlx5/hws/mlx5dr_cmd.h
> +++ b/drivers/net/mlx5/hws/mlx5dr_cmd.h
> @@ -41,6 +41,8 @@ struct mlx5dr_cmd_rtc_create_attr {
>  	uint32_t ste_offset;
>  	uint32_t miss_ft_id;
>  	uint8_t update_index_mode;
> +	uint8_t access_index_mode;
> +	uint8_t num_hash_definer;
>  	uint8_t log_depth;
>  	uint8_t log_size;
>  	uint8_t table_type;
> --
> 2.27.0