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

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Add API functions to create, modify and destroy HW Steering flow tables.
Modify table enables change, connect or disconnect default miss table.
Add update root flow table API function.

Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20250109160546.1733647-3-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Moshe Shemesh 2025-01-09 18:05:33 +02:00 committed by Jakub Kicinski
parent cbfdefc441
commit 0f3ecf5c57
3 changed files with 122 additions and 1 deletions
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5
drivers/net/ethernet/mellanox/mlx5/core/fs_core.h
View File

@ -192,7 +192,10 @@ struct mlx5_flow_handle {
/* Type of children is mlx5_flow_group */
struct mlx5_flow_table {
struct fs_node node;
struct mlx5_fs_dr_table fs_dr_table;
union {
struct mlx5_fs_dr_table fs_dr_table;
struct mlx5_fs_hws_table fs_hws_table;
};
u32 id;
u16 vport;
unsigned int max_fte;

113
drivers/net/ethernet/mellanox/mlx5/core/steering/hws/fs_hws.c
View File

@ -44,7 +44,120 @@ static int mlx5_cmd_hws_set_peer(struct mlx5_flow_root_namespace *ns,
return 0;
}
static int mlx5_fs_set_ft_default_miss(struct mlx5_flow_root_namespace *ns,
struct mlx5_flow_table *ft,
struct mlx5_flow_table *next_ft)
{
struct mlx5hws_table *next_tbl;
int err;
if (!ns->fs_hws_context.hws_ctx)
return -EINVAL;
/* if no change required, return */
if (!next_ft && !ft->fs_hws_table.miss_ft_set)
return 0;
next_tbl = next_ft ? next_ft->fs_hws_table.hws_table : NULL;
err = mlx5hws_table_set_default_miss(ft->fs_hws_table.hws_table, next_tbl);
if (err) {
mlx5_core_err(ns->dev, "Failed setting FT default miss (%d)\n", err);
return err;
}
ft->fs_hws_table.miss_ft_set = !!next_tbl;
return 0;
}
static int mlx5_cmd_hws_create_flow_table(struct mlx5_flow_root_namespace *ns,
struct mlx5_flow_table *ft,
struct mlx5_flow_table_attr *ft_attr,
struct mlx5_flow_table *next_ft)
{
struct mlx5hws_context *ctx = ns->fs_hws_context.hws_ctx;
struct mlx5hws_table_attr tbl_attr = {};
struct mlx5hws_table *tbl;
int err;
if (mlx5_fs_cmd_is_fw_term_table(ft))
return mlx5_fs_cmd_get_fw_cmds()->create_flow_table(ns, ft, ft_attr,
next_ft);
if (ns->table_type != FS_FT_FDB) {
mlx5_core_err(ns->dev, "Table type %d not supported for HWS\n",
ns->table_type);
return -EOPNOTSUPP;
}
tbl_attr.type = MLX5HWS_TABLE_TYPE_FDB;
tbl_attr.level = ft_attr->level;
tbl = mlx5hws_table_create(ctx, &tbl_attr);
if (!tbl) {
mlx5_core_err(ns->dev, "Failed creating hws flow_table\n");
return -EINVAL;
}
ft->fs_hws_table.hws_table = tbl;
ft->id = mlx5hws_table_get_id(tbl);
if (next_ft) {
err = mlx5_fs_set_ft_default_miss(ns, ft, next_ft);
if (err)
goto destroy_table;
}
ft->max_fte = INT_MAX;
return 0;
destroy_table:
mlx5hws_table_destroy(tbl);
ft->fs_hws_table.hws_table = NULL;
return err;
}
static int mlx5_cmd_hws_destroy_flow_table(struct mlx5_flow_root_namespace *ns,
struct mlx5_flow_table *ft)
{
int err;
if (mlx5_fs_cmd_is_fw_term_table(ft))
return mlx5_fs_cmd_get_fw_cmds()->destroy_flow_table(ns, ft);
err = mlx5_fs_set_ft_default_miss(ns, ft, NULL);
if (err)
mlx5_core_err(ns->dev, "Failed to disconnect next table (%d)\n", err);
err = mlx5hws_table_destroy(ft->fs_hws_table.hws_table);
if (err)
mlx5_core_err(ns->dev, "Failed to destroy flow_table (%d)\n", err);
return err;
}
static int mlx5_cmd_hws_modify_flow_table(struct mlx5_flow_root_namespace *ns,
struct mlx5_flow_table *ft,
struct mlx5_flow_table *next_ft)
{
if (mlx5_fs_cmd_is_fw_term_table(ft))
return mlx5_fs_cmd_get_fw_cmds()->modify_flow_table(ns, ft, next_ft);
return mlx5_fs_set_ft_default_miss(ns, ft, next_ft);
}
static int mlx5_cmd_hws_update_root_ft(struct mlx5_flow_root_namespace *ns,
struct mlx5_flow_table *ft,
u32 underlay_qpn,
bool disconnect)
{
return mlx5_fs_cmd_get_fw_cmds()->update_root_ft(ns, ft, underlay_qpn,
disconnect);
}
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_ns = mlx5_cmd_hws_create_ns,
.destroy_ns = mlx5_cmd_hws_destroy_ns,
.set_peer = mlx5_cmd_hws_set_peer,

5
drivers/net/ethernet/mellanox/mlx5/core/steering/hws/fs_hws.h
View File

@ -10,6 +10,11 @@ struct mlx5_fs_hws_context {
struct mlx5hws_context *hws_ctx;
};
struct mlx5_fs_hws_table {
struct mlx5hws_table *hws_table;
bool miss_ft_set;
};
#ifdef CONFIG_MLX5_HW_STEERING
const struct mlx5_flow_cmds *mlx5_fs_cmd_get_hws_cmds(void);