Commit 4160405f authored by Moshe Shemesh's avatar Moshe Shemesh Committed by Jakub Kicinski
Browse files

net/mlx5: fs, add HWS flow group API functions 



Add API functions to create and destroy HW Steering flow groups. Each
flow group consists of a Backward Compatible (BWC) HW Steering matcher
which holds the flow group match criteria.

Signed-off-by: default avatarMoshe Shemesh <moshe@nvidia.com>
Reviewed-by: default avatarYevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: default avatarMark Bloch <mbloch@nvidia.com>
Signed-off-by: default avatarTariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20250109160546.1733647-4-tariqt@nvidia.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 0f3ecf5c

drivers/net/ethernet/mellanox/mlx5/core/fs_core.h

+4 −1
Original line number Diff line number Diff line
@@ -285,7 +285,10 @@ struct mlx5_flow_group_mask { 
/* Type of children is fs_fte */

struct mlx5_flow_group {

	struct fs_node			node;

	union {

		struct mlx5_fs_dr_matcher	fs_dr_matcher;

		struct mlx5_fs_hws_matcher	fs_hws_matcher;

	};

	struct mlx5_flow_group_mask	mask;

	u32				start_index;

	u32				max_ftes;

drivers/net/ethernet/mellanox/mlx5/core/steering/hws/fs_hws.c

+42 −0
Original line number Diff line number Diff line
@@ -153,11 +153,53 @@ static int mlx5_cmd_hws_update_root_ft(struct mlx5_flow_root_namespace *ns, 
							 disconnect);

}



static int mlx5_cmd_hws_create_flow_group(struct mlx5_flow_root_namespace *ns,

					  struct mlx5_flow_table *ft, u32 *in,

					  struct mlx5_flow_group *fg)

{

	struct mlx5hws_match_parameters mask;

	struct mlx5hws_bwc_matcher *matcher;

	u8 match_criteria_enable;

	u32 priority;



	if (mlx5_fs_cmd_is_fw_term_table(ft))

		return mlx5_fs_cmd_get_fw_cmds()->create_flow_group(ns, ft, in, fg);



	mask.match_buf = MLX5_ADDR_OF(create_flow_group_in, in, match_criteria);

	mask.match_sz = sizeof(fg->mask.match_criteria);



	match_criteria_enable = MLX5_GET(create_flow_group_in, in,

					 match_criteria_enable);

	priority = MLX5_GET(create_flow_group_in, in, start_flow_index);

	matcher = mlx5hws_bwc_matcher_create(ft->fs_hws_table.hws_table,

					     priority, match_criteria_enable,

					     &mask);

	if (!matcher) {

		mlx5_core_err(ns->dev, "Failed creating matcher\n");

		return -EINVAL;

	}



	fg->fs_hws_matcher.matcher = matcher;

	return 0;

}



static int mlx5_cmd_hws_destroy_flow_group(struct mlx5_flow_root_namespace *ns,

					   struct mlx5_flow_table *ft,

					   struct mlx5_flow_group *fg)

{

	if (mlx5_fs_cmd_is_fw_term_table(ft))

		return mlx5_fs_cmd_get_fw_cmds()->destroy_flow_group(ns, ft, fg);



	return mlx5hws_bwc_matcher_destroy(fg->fs_hws_matcher.matcher);

}



static const struct mlx5_flow_cmds mlx5_flow_cmds_hws = {

	.create_flow_table = mlx5_cmd_hws_create_flow_table,

	.destroy_flow_table = mlx5_cmd_hws_destroy_flow_table,

	.modify_flow_table = mlx5_cmd_hws_modify_flow_table,

	.update_root_ft = mlx5_cmd_hws_update_root_ft,

	.create_flow_group = mlx5_cmd_hws_create_flow_group,

	.destroy_flow_group = mlx5_cmd_hws_destroy_flow_group,

	.create_ns = mlx5_cmd_hws_create_ns,

	.destroy_ns = mlx5_cmd_hws_destroy_ns,

	.set_peer = mlx5_cmd_hws_set_peer,

drivers/net/ethernet/mellanox/mlx5/core/steering/hws/fs_hws.h

+4 −0
Original line number Diff line number Diff line
@@ -15,6 +15,10 @@ struct mlx5_fs_hws_table { 
	bool miss_ft_set;

};



struct mlx5_fs_hws_matcher {

	struct mlx5hws_bwc_matcher *matcher;

};



#ifdef CONFIG_MLX5_HW_STEERING



const struct mlx5_flow_cmds *mlx5_fs_cmd_get_hws_cmds(void);