diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/devlink.h | 259 | ||||
| -rw-r--r-- | include/uapi/linux/devlink.h | 67 |
2 files changed, 325 insertions, 1 deletions
diff --git a/include/net/devlink.h b/include/net/devlink.h index d29e5fc82582..24de13f8c94f 100644 --- a/include/net/devlink.h +++ b/include/net/devlink.h @@ -25,6 +25,8 @@ struct devlink { struct list_head list; struct list_head port_list; struct list_head sb_list; + struct list_head dpipe_table_list; + struct devlink_dpipe_headers *dpipe_headers; const struct devlink_ops *ops; struct device *dev; possible_net_t _net; @@ -49,6 +51,178 @@ struct devlink_sb_pool_info { enum devlink_sb_threshold_type threshold_type; }; +/** + * struct devlink_dpipe_field - dpipe field object + * @name: field name + * @id: index inside the headers field array + * @bitwidth: bitwidth + * @mapping_type: mapping type + */ +struct devlink_dpipe_field { + const char *name; + unsigned int id; + unsigned int bitwidth; + enum devlink_dpipe_field_mapping_type mapping_type; +}; + +/** + * struct devlink_dpipe_header - dpipe header object + * @name: header name + * @id: index, global/local detrmined by global bit + * @fields: fields + * @fields_count: number of fields + * @global: indicates if header is shared like most protocol header + * or driver specific + */ +struct devlink_dpipe_header { + const char *name; + unsigned int id; + struct devlink_dpipe_field *fields; + unsigned int fields_count; + bool global; +}; + +/** + * struct devlink_dpipe_match - represents match operation + * @type: type of match + * @header_index: header index (packets can have several headers of same + * type like in case of tunnels) + * @header: header + * @fieled_id: field index + */ +struct devlink_dpipe_match { + enum devlink_dpipe_match_type type; + unsigned int header_index; + struct devlink_dpipe_header *header; + unsigned int field_id; +}; + +/** + * struct devlink_dpipe_action - represents action operation + * @type: type of action + * @header_index: header index (packets can have several headers of same + * type like in case of tunnels) + * @header: header + * @fieled_id: field index + */ +struct devlink_dpipe_action { + enum devlink_dpipe_action_type type; + unsigned int header_index; + struct devlink_dpipe_header *header; + unsigned int field_id; +}; + +/** + * struct devlink_dpipe_value - represents value of match/action + * @action: action + * @match: match + * @mapping_value: in case the field has some mapping this value + * specified the mapping value + * @mapping_valid: specify if mapping value is valid + * @value_size: value size + * @value: value + * @mask: bit mask + */ +struct devlink_dpipe_value { + union { + struct devlink_dpipe_action *action; + struct devlink_dpipe_match *match; + }; + unsigned int mapping_value; + bool mapping_valid; + unsigned int value_size; + void *value; + void *mask; +}; + +/** + * struct devlink_dpipe_entry - table entry object + * @index: index of the entry in the table + * @match_values: match values + * @matche_values_count: count of matches tuples + * @action_values: actions values + * @action_values_count: count of actions values + * @counter: value of counter + * @counter_valid: Specify if value is valid from hardware + */ +struct devlink_dpipe_entry { + u64 index; + struct devlink_dpipe_value *match_values; + unsigned int match_values_count; + struct devlink_dpipe_value *action_values; + unsigned int action_values_count; + u64 counter; + bool counter_valid; +}; + +/** + * struct devlink_dpipe_dump_ctx - context provided to driver in order + * to dump + * @info: info + * @cmd: devlink command + * @skb: skb + * @nest: top attribute + * @hdr: hdr + */ +struct devlink_dpipe_dump_ctx { + struct genl_info *info; + enum devlink_command cmd; + struct sk_buff *skb; + struct nlattr *nest; + void *hdr; +}; + +struct devlink_dpipe_table_ops; + +/** + * struct devlink_dpipe_table - table object + * @priv: private + * @name: table name + * @size: maximum number of entries + * @counters_enabled: indicates if counters are active + * @counter_control_extern: indicates if counter control is in dpipe or + * external tool + * @table_ops: table operations + * @rcu: rcu + */ +struct devlink_dpipe_table { + void *priv; + struct list_head list; + const char *name; + u64 size; + bool counters_enabled; + bool counter_control_extern; + struct devlink_dpipe_table_ops *table_ops; + struct rcu_head rcu; +}; + +/** + * struct devlink_dpipe_table_ops - dpipe_table ops + * @actions_dump - dumps all tables actions + * @matches_dump - dumps all tables matches + * @entries_dump - dumps all active entries in the table + * @counters_set_update - when changing the counter status hardware sync + * maybe needed to allocate/free counter related + * resources + */ +struct devlink_dpipe_table_ops { + int (*actions_dump)(void *priv, struct sk_buff *skb); + int (*matches_dump)(void *priv, struct sk_buff *skb); + int (*entries_dump)(void *priv, bool counters_enabled, + struct devlink_dpipe_dump_ctx *dump_ctx); + int (*counters_set_update)(void *priv, bool enable); +}; + +/** + * struct devlink_dpipe_headers - dpipe headers + * @headers - header array can be shared (global bit) or driver specific + * @headers_count - count of headers + */ +struct devlink_dpipe_headers { + struct devlink_dpipe_header **headers; + unsigned int headers_count; +}; + struct devlink_ops { int (*port_type_set)(struct devlink_port *devlink_port, enum devlink_port_type port_type); @@ -132,6 +306,26 @@ int devlink_sb_register(struct devlink *devlink, unsigned int sb_index, u16 egress_pools_count, u16 ingress_tc_count, u16 egress_tc_count); void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index); +int devlink_dpipe_table_register(struct devlink *devlink, + const char *table_name, + struct devlink_dpipe_table_ops *table_ops, + void *priv, u64 size, + bool counter_control_extern); +void devlink_dpipe_table_unregister(struct devlink *devlink, + const char *table_name); +int devlink_dpipe_headers_register(struct devlink *devlink, + struct devlink_dpipe_headers *dpipe_headers); +void devlink_dpipe_headers_unregister(struct devlink *devlink); +bool devlink_dpipe_table_counter_enabled(struct devlink *devlink, + const char *table_name); +int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx); +int devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx, + struct devlink_dpipe_entry *entry); +int devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx); +int devlink_dpipe_action_put(struct sk_buff *skb, + struct devlink_dpipe_action *action); +int devlink_dpipe_match_put(struct sk_buff *skb, + struct devlink_dpipe_match *match); #else @@ -200,6 +394,71 @@ static inline void devlink_sb_unregister(struct devlink *devlink, { } +static inline int +devlink_dpipe_table_register(struct devlink *devlink, + const char *table_name, + struct devlink_dpipe_table_ops *table_ops, + void *priv, u64 size, + bool counter_control_extern) +{ + return 0; +} + +static inline void devlink_dpipe_table_unregister(struct devlink *devlink, + const char *table_name) +{ +} + +static inline int devlink_dpipe_headers_register(struct devlink *devlink, + struct devlink_dpipe_headers * + dpipe_headers) +{ + return 0; +} + +static inline void devlink_dpipe_headers_unregister(struct devlink *devlink) +{ +} + +static inline bool devlink_dpipe_table_counter_enabled(struct devlink *devlink, + const char *table_name) +{ + return false; +} + +static inline int +devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx) +{ + return 0; +} + +static inline int +devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx, + struct devlink_dpipe_entry *entry) +{ + return 0; +} + +static inline int +devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx) +{ + return 0; +} + +static inline int +devlink_dpipe_action_put(struct sk_buff *skb, + struct devlink_dpipe_action *action) +{ + return 0; +} + +static inline int +devlink_dpipe_match_put(struct sk_buff *skb, + struct devlink_dpipe_match *match) +{ + return 0; +} + #endif #endif /* _NET_DEVLINK_H_ */ diff --git a/include/uapi/linux/devlink.h b/include/uapi/linux/devlink.h index 0f1f3a12e23c..b47bee277347 100644 --- a/include/uapi/linux/devlink.h +++ b/include/uapi/linux/devlink.h @@ -65,8 +65,12 @@ enum devlink_command { #define DEVLINK_CMD_ESWITCH_MODE_SET /* obsolete, never use this! */ \ DEVLINK_CMD_ESWITCH_SET - /* add new commands above here */ + DEVLINK_CMD_DPIPE_TABLE_GET, + DEVLINK_CMD_DPIPE_ENTRIES_GET, + DEVLINK_CMD_DPIPE_HEADERS_GET, + DEVLINK_CMD_DPIPE_TABLE_COUNTERS_SET, + /* add new commands above here */ __DEVLINK_CMD_MAX, DEVLINK_CMD_MAX = __DEVLINK_CMD_MAX - 1 }; @@ -148,10 +152,71 @@ enum devlink_attr { DEVLINK_ATTR_ESWITCH_MODE, /* u16 */ DEVLINK_ATTR_ESWITCH_INLINE_MODE, /* u8 */ + DEVLINK_ATTR_DPIPE_TABLES, /* nested */ + DEVLINK_ATTR_DPIPE_TABLE, /* nested */ + DEVLINK_ATTR_DPIPE_TABLE_NAME, /* string */ + DEVLINK_ATTR_DPIPE_TABLE_SIZE, /* u64 */ + DEVLINK_ATTR_DPIPE_TABLE_MATCHES, /* nested */ + DEVLINK_ATTR_DPIPE_TABLE_ACTIONS, /* nested */ + DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED, /* u8 */ + + DEVLINK_ATTR_DPIPE_ENTRIES, /* nested */ + DEVLINK_ATTR_DPIPE_ENTRY, /* nested */ + DEVLINK_ATTR_DPIPE_ENTRY_INDEX, /* u64 */ + DEVLINK_ATTR_DPIPE_ENTRY_MATCH_VALUES, /* nested */ + DEVLINK_ATTR_DPIPE_ENTRY_ACTION_VALUES, /* nested */ + DEVLINK_ATTR_DPIPE_ENTRY_COUNTER, /* u64 */ + + DEVLINK_ATTR_DPIPE_MATCH, /* nested */ + DEVLINK_ATTR_DPIPE_MATCH_VALUE, /* nested */ + DEVLINK_ATTR_DPIPE_MATCH_TYPE, /* u32 */ + + DEVLINK_ATTR_DPIPE_ACTION, /* nested */ + DEVLINK_ATTR_DPIPE_ACTION_VALUE, /* nested */ + DEVLINK_ATTR_DPIPE_ACTION_TYPE, /* u32 */ + + DEVLINK_ATTR_DPIPE_VALUE, + DEVLINK_ATTR_DPIPE_VALUE_MASK, + DEVLINK_ATTR_DPIPE_VALUE_MAPPING, /* u32 */ + + DEVLINK_ATTR_DPIPE_HEADERS, /* nested */ + DEVLINK_ATTR_DPIPE_HEADER, /* nested */ + DEVLINK_ATTR_DPIPE_HEADER_NAME, /* string */ + DEVLINK_ATTR_DPIPE_HEADER_ID, /* u32 */ + DEVLINK_ATTR_DPIPE_HEADER_FIELDS, /* nested */ + DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, /* u8 */ + DEVLINK_ATTR_DPIPE_HEADER_INDEX, /* u32 */ + + DEVLINK_ATTR_DPIPE_FIELD, /* nested */ + DEVLINK_ATTR_DPIPE_FIELD_NAME, /* string */ + DEVLINK_ATTR_DPIPE_FIELD_ID, /* u32 */ + DEVLINK_ATTR_DPIPE_FIELD_BITWIDTH, /* u32 */ + DEVLINK_ATTR_DPIPE_FIELD_MAPPING_TYPE, /* u32 */ + + DEVLINK_ATTR_PAD, + /* add new attributes above here, update the policy in devlink.c */ __DEVLINK_ATTR_MAX, DEVLINK_ATTR_MAX = __DEVLINK_ATTR_MAX - 1 }; +/* Mapping between internal resource described by the field and system + * structure + */ +enum devlink_dpipe_field_mapping_type { + DEVLINK_DPIPE_FIELD_MAPPING_TYPE_NONE, + DEVLINK_DPIPE_FIELD_MAPPING_TYPE_IFINDEX, +}; + +/* Match type - specify the type of the match */ +enum devlink_dpipe_match_type { + DEVLINK_DPIPE_MATCH_TYPE_FIELD_EXACT, +}; + +/* Action type - specify the action type */ +enum devlink_dpipe_action_type { + DEVLINK_DPIPE_ACTION_TYPE_FIELD_MODIFY, +}; + #endif /* _UAPI_LINUX_DEVLINK_H_ */ |