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mlx5: Add modify header support

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Add support to allocating a modify header context.

Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Sponsored by:	NVidia networking
MFC after:	1 week
This commit is contained in:
Mark Bloch 2023-02-19 08:41:24 +00:00 committed by Konstantin Belousov
parent b2376a5f1e
commit e4f84168b3
5 changed files with 283 additions and 3 deletions
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6
sys/dev/mlx5/fs.h
View file

@ -228,4 +228,10 @@ bool fs_match_exact_mask(
void *mask2);
/**********end API for sniffer**********/
struct mlx5_modify_hdr *mlx5_modify_header_alloc(struct mlx5_core_dev *dev,
enum mlx5_flow_namespace_type ns_type,
u8 num_actions,
void *modify_actions);
void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev,
struct mlx5_modify_hdr *modify_hdr);
#endif

15
sys/dev/mlx5/mlx5_core/fs_core.h
View file

@ -168,6 +168,11 @@ struct fs_client_priv_data {
void *client_dst_data;
};
struct mlx5_modify_hdr {
enum mlx5_flow_namespace_type ns_type;
u32 id;
};
void _fs_remove_node(struct kref *kref);
#define fs_get_obj(v, _base) {v = container_of((_base), typeof(*v), base); }
#define fs_get_parent(v, child) {v = (child)->base.parent ? \
@ -295,4 +300,14 @@ int mlx5_cmd_update_root_ft(struct mlx5_core_dev *dev,
int mlx5_init_fs(struct mlx5_core_dev *dev);
void mlx5_cleanup_fs(struct mlx5_core_dev *dev);
void mlx5_fc_update_sampling_interval(struct mlx5_core_dev *dev,
unsigned long interval);
int mlx5_cmd_modify_header_alloc(struct mlx5_core_dev *dev,
enum mlx5_flow_namespace_type namespace,
u8 num_actions,
void *modify_actions,
struct mlx5_modify_hdr *modify_hdr);
void mlx5_cmd_modify_header_dealloc(struct mlx5_core_dev *dev,
struct mlx5_modify_hdr *modify_hdr);
#endif

73
sys/dev/mlx5/mlx5_core/mlx5_fs_cmd.c
View file

@ -283,3 +283,76 @@ int mlx5_cmd_fs_delete_fte(struct mlx5_core_dev *dev,
return err;
}
int mlx5_cmd_modify_header_alloc(struct mlx5_core_dev *dev,
enum mlx5_flow_namespace_type namespace,
u8 num_actions,
void *modify_actions,
struct mlx5_modify_hdr *modify_hdr)
{
u32 out[MLX5_ST_SZ_DW(alloc_modify_header_context_out)] = {};
int max_actions, actions_size, inlen, err;
void *actions_in;
u8 table_type;
u32 *in;
switch (namespace) {
case MLX5_FLOW_NAMESPACE_FDB:
max_actions = MLX5_CAP_ESW_FLOWTABLE_FDB(dev, max_modify_header_actions);
table_type = FS_FT_FDB;
break;
case MLX5_FLOW_NAMESPACE_KERNEL:
case MLX5_FLOW_NAMESPACE_BYPASS:
max_actions = MLX5_CAP_FLOWTABLE_NIC_RX(dev, max_modify_header_actions);
table_type = FS_FT_NIC_RX;
break;
case MLX5_FLOW_NAMESPACE_ESW_INGRESS:
max_actions = MLX5_CAP_ESW_INGRESS_ACL(dev, max_modify_header_actions);
table_type = FS_FT_ESW_INGRESS_ACL;
break;
default:
return -EOPNOTSUPP;
}
if (num_actions > max_actions) {
mlx5_core_warn(dev, "too many modify header actions %d, max supported %d\n",
num_actions, max_actions);
return -EOPNOTSUPP;
}
actions_size = MLX5_UN_SZ_BYTES(set_add_copy_action_in_auto) * num_actions;
inlen = MLX5_ST_SZ_BYTES(alloc_modify_header_context_in) + actions_size;
in = kzalloc(inlen, GFP_KERNEL);
if (!in)
return -ENOMEM;
MLX5_SET(alloc_modify_header_context_in, in, opcode,
MLX5_CMD_OP_ALLOC_MODIFY_HEADER_CONTEXT);
MLX5_SET(alloc_modify_header_context_in, in, table_type, table_type);
MLX5_SET(alloc_modify_header_context_in, in, num_of_actions, num_actions);
actions_in = MLX5_ADDR_OF(alloc_modify_header_context_in, in, actions);
memcpy(actions_in, modify_actions, actions_size);
err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
modify_hdr->id = MLX5_GET(alloc_modify_header_context_out, out, modify_header_id);
kfree(in);
return err;
}
void mlx5_cmd_modify_header_dealloc(struct mlx5_core_dev *dev,
struct mlx5_modify_hdr *modify_hdr)
{
u32 out[MLX5_ST_SZ_DW(dealloc_modify_header_context_out)] = {};
u32 in[MLX5_ST_SZ_DW(dealloc_modify_header_context_in)] = {};
MLX5_SET(dealloc_modify_header_context_in, in, opcode,
MLX5_CMD_OP_DEALLOC_MODIFY_HEADER_CONTEXT);
MLX5_SET(dealloc_modify_header_context_in, in, modify_header_id,
modify_hdr->id);
mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
}

32
sys/dev/mlx5/mlx5_core/mlx5_fs_tree.c
View file

@ -2739,3 +2739,35 @@ free_list:
mlx5_del_flow_rules_list(rules_list);
return NULL;
}
struct mlx5_modify_hdr *mlx5_modify_header_alloc(struct mlx5_core_dev *dev,
enum mlx5_flow_namespace_type ns_type,
u8 num_actions,
void *modify_actions)
{
struct mlx5_modify_hdr *modify_hdr;
int err;
modify_hdr = kzalloc(sizeof(*modify_hdr), GFP_KERNEL);
if (!modify_hdr)
return ERR_PTR(-ENOMEM);
modify_hdr->ns_type = ns_type;
err = mlx5_cmd_modify_header_alloc(dev, ns_type, num_actions,
modify_actions, modify_hdr);
if (err) {
kfree(modify_hdr);
return ERR_PTR(err);
}
return modify_hdr;
}
EXPORT_SYMBOL(mlx5_modify_header_alloc);
void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev,
struct mlx5_modify_hdr *modify_hdr)
{
mlx5_cmd_modify_header_dealloc(dev, modify_hdr);
kfree(modify_hdr);
}
EXPORT_SYMBOL(mlx5_modify_header_dealloc);

160
sys/dev/mlx5/mlx5_ifc.h
View file

@ -473,7 +473,8 @@ struct mlx5_ifc_flow_table_prop_layout_bits {
u8 reserved_at_20[0x2];
u8 log_max_ft_size[0x6];
u8 reserved_at_28[0x10];
u8 log_max_modify_header_context[0x8];
u8 max_modify_header_actions[0x8];
u8 max_ft_level[0x8];
u8 reserved_at_40[0x20];
@ -2251,11 +2252,15 @@ struct mlx5_ifc_flow_context_bits {
u8 reserved_4[0x8];
u8 flow_counter_list_size[0x18];
u8 reserved_5[0x140];
u8 reserved_5[0x20];
u8 modify_header_id[0x20];
u8 reserved_6[0x100];
struct mlx5_ifc_fte_match_param_bits match_value;
u8 reserved_6[0x600];
u8 reserved_7[0x600];
union mlx5_ifc_dest_format_struct_flow_counter_list_auto_bits destination[0];
};
@ -5199,6 +5204,155 @@ struct mlx5_ifc_query_eq_in_bits {
u8 reserved_3[0x20];
};
struct mlx5_ifc_set_action_in_bits {
u8 action_type[0x4];
u8 field[0xc];
u8 reserved_at_10[0x3];
u8 offset[0x5];
u8 reserved_at_18[0x3];
u8 length[0x5];
u8 data[0x20];
};
struct mlx5_ifc_add_action_in_bits {
u8 action_type[0x4];
u8 field[0xc];
u8 reserved_at_10[0x10];
u8 data[0x20];
};
struct mlx5_ifc_copy_action_in_bits {
u8 action_type[0x4];
u8 src_field[0xc];
u8 reserved_at_10[0x3];
u8 src_offset[0x5];
u8 reserved_at_18[0x3];
u8 length[0x5];
u8 reserved_at_20[0x4];
u8 dst_field[0xc];
u8 reserved_at_30[0x3];
u8 dst_offset[0x5];
u8 reserved_at_38[0x8];
};
union mlx5_ifc_set_add_copy_action_in_auto_bits {
struct mlx5_ifc_set_action_in_bits set_action_in;
struct mlx5_ifc_add_action_in_bits add_action_in;
struct mlx5_ifc_copy_action_in_bits copy_action_in;
u8 reserved_at_0[0x40];
};
enum {
MLX5_ACTION_TYPE_SET = 0x1,
MLX5_ACTION_TYPE_ADD = 0x2,
MLX5_ACTION_TYPE_COPY = 0x3,
};
enum {
MLX5_ACTION_IN_FIELD_OUT_SMAC_47_16 = 0x1,
MLX5_ACTION_IN_FIELD_OUT_SMAC_15_0 = 0x2,
MLX5_ACTION_IN_FIELD_OUT_ETHERTYPE = 0x3,
MLX5_ACTION_IN_FIELD_OUT_DMAC_47_16 = 0x4,
MLX5_ACTION_IN_FIELD_OUT_DMAC_15_0 = 0x5,
MLX5_ACTION_IN_FIELD_OUT_IP_DSCP = 0x6,
MLX5_ACTION_IN_FIELD_OUT_TCP_FLAGS = 0x7,
MLX5_ACTION_IN_FIELD_OUT_TCP_SPORT = 0x8,
MLX5_ACTION_IN_FIELD_OUT_TCP_DPORT = 0x9,
MLX5_ACTION_IN_FIELD_OUT_IP_TTL = 0xa,
MLX5_ACTION_IN_FIELD_OUT_UDP_SPORT = 0xb,
MLX5_ACTION_IN_FIELD_OUT_UDP_DPORT = 0xc,
MLX5_ACTION_IN_FIELD_OUT_SIPV6_127_96 = 0xd,
MLX5_ACTION_IN_FIELD_OUT_SIPV6_95_64 = 0xe,
MLX5_ACTION_IN_FIELD_OUT_SIPV6_63_32 = 0xf,
MLX5_ACTION_IN_FIELD_OUT_SIPV6_31_0 = 0x10,
MLX5_ACTION_IN_FIELD_OUT_DIPV6_127_96 = 0x11,
MLX5_ACTION_IN_FIELD_OUT_DIPV6_95_64 = 0x12,
MLX5_ACTION_IN_FIELD_OUT_DIPV6_63_32 = 0x13,
MLX5_ACTION_IN_FIELD_OUT_DIPV6_31_0 = 0x14,
MLX5_ACTION_IN_FIELD_OUT_SIPV4 = 0x15,
MLX5_ACTION_IN_FIELD_OUT_DIPV4 = 0x16,
MLX5_ACTION_IN_FIELD_OUT_FIRST_VID = 0x17,
MLX5_ACTION_IN_FIELD_OUT_IPV6_HOPLIMIT = 0x47,
MLX5_ACTION_IN_FIELD_METADATA_REG_A = 0x49,
MLX5_ACTION_IN_FIELD_METADATA_REG_B = 0x50,
MLX5_ACTION_IN_FIELD_METADATA_REG_C_0 = 0x51,
MLX5_ACTION_IN_FIELD_METADATA_REG_C_1 = 0x52,
MLX5_ACTION_IN_FIELD_METADATA_REG_C_2 = 0x53,
MLX5_ACTION_IN_FIELD_METADATA_REG_C_3 = 0x54,
MLX5_ACTION_IN_FIELD_METADATA_REG_C_4 = 0x55,
MLX5_ACTION_IN_FIELD_METADATA_REG_C_5 = 0x56,
MLX5_ACTION_IN_FIELD_METADATA_REG_C_6 = 0x57,
MLX5_ACTION_IN_FIELD_METADATA_REG_C_7 = 0x58,
MLX5_ACTION_IN_FIELD_OUT_TCP_SEQ_NUM = 0x59,
MLX5_ACTION_IN_FIELD_OUT_TCP_ACK_NUM = 0x5B,
MLX5_ACTION_IN_FIELD_IPSEC_SYNDROME = 0x5D,
MLX5_ACTION_IN_FIELD_OUT_EMD_47_32 = 0x6F,
MLX5_ACTION_IN_FIELD_OUT_EMD_31_0 = 0x70,
};
struct mlx5_ifc_alloc_modify_header_context_out_bits {
u8 status[0x8];
u8 reserved_at_8[0x18];
u8 syndrome[0x20];
u8 modify_header_id[0x20];
u8 reserved_at_60[0x20];
};
struct mlx5_ifc_alloc_modify_header_context_in_bits {
u8 opcode[0x10];
u8 reserved_at_10[0x10];
u8 reserved_at_20[0x10];
u8 op_mod[0x10];
u8 reserved_at_40[0x20];
u8 table_type[0x8];
u8 reserved_at_68[0x10];
u8 num_of_actions[0x8];
union mlx5_ifc_set_add_copy_action_in_auto_bits actions[];
};
struct mlx5_ifc_dealloc_modify_header_context_out_bits {
u8 status[0x8];
u8 reserved_at_8[0x18];
u8 syndrome[0x20];
u8 reserved_at_40[0x40];
};
struct mlx5_ifc_dealloc_modify_header_context_in_bits {
u8 opcode[0x10];
u8 reserved_at_10[0x10];
u8 reserved_at_20[0x10];
u8 op_mod[0x10];
u8 modify_header_id[0x20];
u8 reserved_at_60[0x20];
};
struct mlx5_ifc_query_modify_header_context_in_bits {
u8 opcode[0x10];
u8 uid[0x10];
u8 reserved_at_20[0x10];
u8 op_mod[0x10];
u8 modify_header_id[0x20];
u8 reserved_at_60[0xa0];
};
struct mlx5_ifc_query_dct_out_bits {
u8 status[0x8];
u8 reserved_0[0x18];