529 lines
15 KiB
C
529 lines
15 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
/*
|
|
* include/net/switchdev.h - Switch device API
|
|
* Copyright (c) 2014-2015 Jiri Pirko <jiri@resnulli.us>
|
|
* Copyright (c) 2014-2015 Scott Feldman <sfeldma@gmail.com>
|
|
*/
|
|
#ifndef _LINUX_SWITCHDEV_H_
|
|
#define _LINUX_SWITCHDEV_H_
|
|
|
|
#include <linux/netdevice.h>
|
|
#include <linux/notifier.h>
|
|
#include <linux/list.h>
|
|
#include <net/ip_fib.h>
|
|
|
|
#define SWITCHDEV_F_NO_RECURSE BIT(0)
|
|
#define SWITCHDEV_F_SKIP_EOPNOTSUPP BIT(1)
|
|
#define SWITCHDEV_F_DEFER BIT(2)
|
|
|
|
enum switchdev_attr_id {
|
|
SWITCHDEV_ATTR_ID_UNDEFINED,
|
|
SWITCHDEV_ATTR_ID_PORT_STP_STATE,
|
|
SWITCHDEV_ATTR_ID_PORT_MST_STATE,
|
|
SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS,
|
|
SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS,
|
|
SWITCHDEV_ATTR_ID_PORT_MROUTER,
|
|
SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME,
|
|
SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING,
|
|
SWITCHDEV_ATTR_ID_BRIDGE_VLAN_PROTOCOL,
|
|
SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED,
|
|
SWITCHDEV_ATTR_ID_BRIDGE_MROUTER,
|
|
SWITCHDEV_ATTR_ID_BRIDGE_MST,
|
|
SWITCHDEV_ATTR_ID_MRP_PORT_ROLE,
|
|
SWITCHDEV_ATTR_ID_VLAN_MSTI,
|
|
};
|
|
|
|
struct switchdev_mst_state {
|
|
u16 msti;
|
|
u8 state;
|
|
};
|
|
|
|
struct switchdev_brport_flags {
|
|
unsigned long val;
|
|
unsigned long mask;
|
|
};
|
|
|
|
struct switchdev_vlan_msti {
|
|
u16 vid;
|
|
u16 msti;
|
|
};
|
|
|
|
struct switchdev_attr {
|
|
struct net_device *orig_dev;
|
|
enum switchdev_attr_id id;
|
|
u32 flags;
|
|
void *complete_priv;
|
|
void (*complete)(struct net_device *dev, int err, void *priv);
|
|
union {
|
|
u8 stp_state; /* PORT_STP_STATE */
|
|
struct switchdev_mst_state mst_state; /* PORT_MST_STATE */
|
|
struct switchdev_brport_flags brport_flags; /* PORT_BRIDGE_FLAGS */
|
|
bool mrouter; /* PORT_MROUTER */
|
|
clock_t ageing_time; /* BRIDGE_AGEING_TIME */
|
|
bool vlan_filtering; /* BRIDGE_VLAN_FILTERING */
|
|
u16 vlan_protocol; /* BRIDGE_VLAN_PROTOCOL */
|
|
bool mst; /* BRIDGE_MST */
|
|
bool mc_disabled; /* MC_DISABLED */
|
|
u8 mrp_port_role; /* MRP_PORT_ROLE */
|
|
struct switchdev_vlan_msti vlan_msti; /* VLAN_MSTI */
|
|
} u;
|
|
};
|
|
|
|
enum switchdev_obj_id {
|
|
SWITCHDEV_OBJ_ID_UNDEFINED,
|
|
SWITCHDEV_OBJ_ID_PORT_VLAN,
|
|
SWITCHDEV_OBJ_ID_PORT_MDB,
|
|
SWITCHDEV_OBJ_ID_HOST_MDB,
|
|
SWITCHDEV_OBJ_ID_MRP,
|
|
SWITCHDEV_OBJ_ID_RING_TEST_MRP,
|
|
SWITCHDEV_OBJ_ID_RING_ROLE_MRP,
|
|
SWITCHDEV_OBJ_ID_RING_STATE_MRP,
|
|
SWITCHDEV_OBJ_ID_IN_TEST_MRP,
|
|
SWITCHDEV_OBJ_ID_IN_ROLE_MRP,
|
|
SWITCHDEV_OBJ_ID_IN_STATE_MRP,
|
|
};
|
|
|
|
struct switchdev_obj {
|
|
struct list_head list;
|
|
struct net_device *orig_dev;
|
|
enum switchdev_obj_id id;
|
|
u32 flags;
|
|
void *complete_priv;
|
|
void (*complete)(struct net_device *dev, int err, void *priv);
|
|
};
|
|
|
|
/* SWITCHDEV_OBJ_ID_PORT_VLAN */
|
|
struct switchdev_obj_port_vlan {
|
|
struct switchdev_obj obj;
|
|
u16 flags;
|
|
u16 vid;
|
|
/* If set, the notifier signifies a change of one of the following
|
|
* flags for a VLAN that already exists:
|
|
* - BRIDGE_VLAN_INFO_PVID
|
|
* - BRIDGE_VLAN_INFO_UNTAGGED
|
|
* Entries with BRIDGE_VLAN_INFO_BRENTRY unset are not notified at all.
|
|
*/
|
|
bool changed;
|
|
};
|
|
|
|
#define SWITCHDEV_OBJ_PORT_VLAN(OBJ) \
|
|
container_of((OBJ), struct switchdev_obj_port_vlan, obj)
|
|
|
|
/* SWITCHDEV_OBJ_ID_PORT_MDB */
|
|
struct switchdev_obj_port_mdb {
|
|
struct switchdev_obj obj;
|
|
unsigned char addr[ETH_ALEN];
|
|
u16 vid;
|
|
};
|
|
|
|
#define SWITCHDEV_OBJ_PORT_MDB(OBJ) \
|
|
container_of((OBJ), struct switchdev_obj_port_mdb, obj)
|
|
|
|
|
|
/* SWITCHDEV_OBJ_ID_MRP */
|
|
struct switchdev_obj_mrp {
|
|
struct switchdev_obj obj;
|
|
struct net_device *p_port;
|
|
struct net_device *s_port;
|
|
u32 ring_id;
|
|
u16 prio;
|
|
};
|
|
|
|
#define SWITCHDEV_OBJ_MRP(OBJ) \
|
|
container_of((OBJ), struct switchdev_obj_mrp, obj)
|
|
|
|
/* SWITCHDEV_OBJ_ID_RING_TEST_MRP */
|
|
struct switchdev_obj_ring_test_mrp {
|
|
struct switchdev_obj obj;
|
|
/* The value is in us and a value of 0 represents to stop */
|
|
u32 interval;
|
|
u8 max_miss;
|
|
u32 ring_id;
|
|
u32 period;
|
|
bool monitor;
|
|
};
|
|
|
|
#define SWITCHDEV_OBJ_RING_TEST_MRP(OBJ) \
|
|
container_of((OBJ), struct switchdev_obj_ring_test_mrp, obj)
|
|
|
|
/* SWICHDEV_OBJ_ID_RING_ROLE_MRP */
|
|
struct switchdev_obj_ring_role_mrp {
|
|
struct switchdev_obj obj;
|
|
u8 ring_role;
|
|
u32 ring_id;
|
|
u8 sw_backup;
|
|
};
|
|
|
|
#define SWITCHDEV_OBJ_RING_ROLE_MRP(OBJ) \
|
|
container_of((OBJ), struct switchdev_obj_ring_role_mrp, obj)
|
|
|
|
struct switchdev_obj_ring_state_mrp {
|
|
struct switchdev_obj obj;
|
|
u8 ring_state;
|
|
u32 ring_id;
|
|
};
|
|
|
|
#define SWITCHDEV_OBJ_RING_STATE_MRP(OBJ) \
|
|
container_of((OBJ), struct switchdev_obj_ring_state_mrp, obj)
|
|
|
|
/* SWITCHDEV_OBJ_ID_IN_TEST_MRP */
|
|
struct switchdev_obj_in_test_mrp {
|
|
struct switchdev_obj obj;
|
|
/* The value is in us and a value of 0 represents to stop */
|
|
u32 interval;
|
|
u32 in_id;
|
|
u32 period;
|
|
u8 max_miss;
|
|
};
|
|
|
|
#define SWITCHDEV_OBJ_IN_TEST_MRP(OBJ) \
|
|
container_of((OBJ), struct switchdev_obj_in_test_mrp, obj)
|
|
|
|
/* SWICHDEV_OBJ_ID_IN_ROLE_MRP */
|
|
struct switchdev_obj_in_role_mrp {
|
|
struct switchdev_obj obj;
|
|
struct net_device *i_port;
|
|
u32 ring_id;
|
|
u16 in_id;
|
|
u8 in_role;
|
|
u8 sw_backup;
|
|
};
|
|
|
|
#define SWITCHDEV_OBJ_IN_ROLE_MRP(OBJ) \
|
|
container_of((OBJ), struct switchdev_obj_in_role_mrp, obj)
|
|
|
|
struct switchdev_obj_in_state_mrp {
|
|
struct switchdev_obj obj;
|
|
u32 in_id;
|
|
u8 in_state;
|
|
};
|
|
|
|
#define SWITCHDEV_OBJ_IN_STATE_MRP(OBJ) \
|
|
container_of((OBJ), struct switchdev_obj_in_state_mrp, obj)
|
|
|
|
struct switchdev_brport {
|
|
struct net_device *dev;
|
|
const void *ctx;
|
|
struct notifier_block *atomic_nb;
|
|
struct notifier_block *blocking_nb;
|
|
bool tx_fwd_offload;
|
|
};
|
|
|
|
enum switchdev_notifier_type {
|
|
SWITCHDEV_FDB_ADD_TO_BRIDGE = 1,
|
|
SWITCHDEV_FDB_DEL_TO_BRIDGE,
|
|
SWITCHDEV_FDB_ADD_TO_DEVICE,
|
|
SWITCHDEV_FDB_DEL_TO_DEVICE,
|
|
SWITCHDEV_FDB_OFFLOADED,
|
|
SWITCHDEV_FDB_FLUSH_TO_BRIDGE,
|
|
|
|
SWITCHDEV_PORT_OBJ_ADD, /* Blocking. */
|
|
SWITCHDEV_PORT_OBJ_DEL, /* Blocking. */
|
|
SWITCHDEV_PORT_ATTR_SET, /* May be blocking . */
|
|
|
|
SWITCHDEV_VXLAN_FDB_ADD_TO_BRIDGE,
|
|
SWITCHDEV_VXLAN_FDB_DEL_TO_BRIDGE,
|
|
SWITCHDEV_VXLAN_FDB_ADD_TO_DEVICE,
|
|
SWITCHDEV_VXLAN_FDB_DEL_TO_DEVICE,
|
|
SWITCHDEV_VXLAN_FDB_OFFLOADED,
|
|
|
|
SWITCHDEV_BRPORT_OFFLOADED,
|
|
SWITCHDEV_BRPORT_UNOFFLOADED,
|
|
SWITCHDEV_BRPORT_REPLAY,
|
|
};
|
|
|
|
struct switchdev_notifier_info {
|
|
struct net_device *dev;
|
|
struct netlink_ext_ack *extack;
|
|
const void *ctx;
|
|
};
|
|
|
|
/* Remember to update br_switchdev_fdb_populate() when adding
|
|
* new members to this structure
|
|
*/
|
|
struct switchdev_notifier_fdb_info {
|
|
struct switchdev_notifier_info info; /* must be first */
|
|
const unsigned char *addr;
|
|
u16 vid;
|
|
u8 added_by_user:1,
|
|
is_local:1,
|
|
locked:1,
|
|
offloaded:1;
|
|
};
|
|
|
|
struct switchdev_notifier_port_obj_info {
|
|
struct switchdev_notifier_info info; /* must be first */
|
|
const struct switchdev_obj *obj;
|
|
bool handled;
|
|
};
|
|
|
|
struct switchdev_notifier_port_attr_info {
|
|
struct switchdev_notifier_info info; /* must be first */
|
|
const struct switchdev_attr *attr;
|
|
bool handled;
|
|
};
|
|
|
|
struct switchdev_notifier_brport_info {
|
|
struct switchdev_notifier_info info; /* must be first */
|
|
const struct switchdev_brport brport;
|
|
};
|
|
|
|
static inline struct net_device *
|
|
switchdev_notifier_info_to_dev(const struct switchdev_notifier_info *info)
|
|
{
|
|
return info->dev;
|
|
}
|
|
|
|
static inline struct netlink_ext_ack *
|
|
switchdev_notifier_info_to_extack(const struct switchdev_notifier_info *info)
|
|
{
|
|
return info->extack;
|
|
}
|
|
|
|
static inline bool
|
|
switchdev_fdb_is_dynamically_learned(const struct switchdev_notifier_fdb_info *fdb_info)
|
|
{
|
|
return !fdb_info->added_by_user && !fdb_info->is_local;
|
|
}
|
|
|
|
#ifdef CONFIG_NET_SWITCHDEV
|
|
|
|
int switchdev_bridge_port_offload(struct net_device *brport_dev,
|
|
struct net_device *dev, const void *ctx,
|
|
struct notifier_block *atomic_nb,
|
|
struct notifier_block *blocking_nb,
|
|
bool tx_fwd_offload,
|
|
struct netlink_ext_ack *extack);
|
|
void switchdev_bridge_port_unoffload(struct net_device *brport_dev,
|
|
const void *ctx,
|
|
struct notifier_block *atomic_nb,
|
|
struct notifier_block *blocking_nb);
|
|
int switchdev_bridge_port_replay(struct net_device *brport_dev,
|
|
struct net_device *dev, const void *ctx,
|
|
struct notifier_block *atomic_nb,
|
|
struct notifier_block *blocking_nb,
|
|
struct netlink_ext_ack *extack);
|
|
|
|
void switchdev_deferred_process(void);
|
|
int switchdev_port_attr_set(struct net_device *dev,
|
|
const struct switchdev_attr *attr,
|
|
struct netlink_ext_ack *extack);
|
|
bool switchdev_port_obj_act_is_deferred(struct net_device *dev,
|
|
enum switchdev_notifier_type nt,
|
|
const struct switchdev_obj *obj);
|
|
int switchdev_port_obj_add(struct net_device *dev,
|
|
const struct switchdev_obj *obj,
|
|
struct netlink_ext_ack *extack);
|
|
int switchdev_port_obj_del(struct net_device *dev,
|
|
const struct switchdev_obj *obj);
|
|
|
|
int register_switchdev_notifier(struct notifier_block *nb);
|
|
int unregister_switchdev_notifier(struct notifier_block *nb);
|
|
int call_switchdev_notifiers(unsigned long val, struct net_device *dev,
|
|
struct switchdev_notifier_info *info,
|
|
struct netlink_ext_ack *extack);
|
|
|
|
int register_switchdev_blocking_notifier(struct notifier_block *nb);
|
|
int unregister_switchdev_blocking_notifier(struct notifier_block *nb);
|
|
int call_switchdev_blocking_notifiers(unsigned long val, struct net_device *dev,
|
|
struct switchdev_notifier_info *info,
|
|
struct netlink_ext_ack *extack);
|
|
|
|
int switchdev_handle_fdb_event_to_device(struct net_device *dev, unsigned long event,
|
|
const struct switchdev_notifier_fdb_info *fdb_info,
|
|
bool (*check_cb)(const struct net_device *dev),
|
|
bool (*foreign_dev_check_cb)(const struct net_device *dev,
|
|
const struct net_device *foreign_dev),
|
|
int (*mod_cb)(struct net_device *dev, struct net_device *orig_dev,
|
|
unsigned long event, const void *ctx,
|
|
const struct switchdev_notifier_fdb_info *fdb_info));
|
|
|
|
int switchdev_handle_port_obj_add(struct net_device *dev,
|
|
struct switchdev_notifier_port_obj_info *port_obj_info,
|
|
bool (*check_cb)(const struct net_device *dev),
|
|
int (*add_cb)(struct net_device *dev, const void *ctx,
|
|
const struct switchdev_obj *obj,
|
|
struct netlink_ext_ack *extack));
|
|
int switchdev_handle_port_obj_add_foreign(struct net_device *dev,
|
|
struct switchdev_notifier_port_obj_info *port_obj_info,
|
|
bool (*check_cb)(const struct net_device *dev),
|
|
bool (*foreign_dev_check_cb)(const struct net_device *dev,
|
|
const struct net_device *foreign_dev),
|
|
int (*add_cb)(struct net_device *dev, const void *ctx,
|
|
const struct switchdev_obj *obj,
|
|
struct netlink_ext_ack *extack));
|
|
int switchdev_handle_port_obj_del(struct net_device *dev,
|
|
struct switchdev_notifier_port_obj_info *port_obj_info,
|
|
bool (*check_cb)(const struct net_device *dev),
|
|
int (*del_cb)(struct net_device *dev, const void *ctx,
|
|
const struct switchdev_obj *obj));
|
|
int switchdev_handle_port_obj_del_foreign(struct net_device *dev,
|
|
struct switchdev_notifier_port_obj_info *port_obj_info,
|
|
bool (*check_cb)(const struct net_device *dev),
|
|
bool (*foreign_dev_check_cb)(const struct net_device *dev,
|
|
const struct net_device *foreign_dev),
|
|
int (*del_cb)(struct net_device *dev, const void *ctx,
|
|
const struct switchdev_obj *obj));
|
|
|
|
int switchdev_handle_port_attr_set(struct net_device *dev,
|
|
struct switchdev_notifier_port_attr_info *port_attr_info,
|
|
bool (*check_cb)(const struct net_device *dev),
|
|
int (*set_cb)(struct net_device *dev, const void *ctx,
|
|
const struct switchdev_attr *attr,
|
|
struct netlink_ext_ack *extack));
|
|
#else
|
|
|
|
static inline int
|
|
switchdev_bridge_port_offload(struct net_device *brport_dev,
|
|
struct net_device *dev, const void *ctx,
|
|
struct notifier_block *atomic_nb,
|
|
struct notifier_block *blocking_nb,
|
|
bool tx_fwd_offload,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline void
|
|
switchdev_bridge_port_unoffload(struct net_device *brport_dev,
|
|
const void *ctx,
|
|
struct notifier_block *atomic_nb,
|
|
struct notifier_block *blocking_nb)
|
|
{
|
|
}
|
|
|
|
static inline void switchdev_deferred_process(void)
|
|
{
|
|
}
|
|
|
|
static inline int switchdev_port_attr_set(struct net_device *dev,
|
|
const struct switchdev_attr *attr,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline int switchdev_port_obj_add(struct net_device *dev,
|
|
const struct switchdev_obj *obj,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline int switchdev_port_obj_del(struct net_device *dev,
|
|
const struct switchdev_obj *obj)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline int register_switchdev_notifier(struct notifier_block *nb)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int unregister_switchdev_notifier(struct notifier_block *nb)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int call_switchdev_notifiers(unsigned long val,
|
|
struct net_device *dev,
|
|
struct switchdev_notifier_info *info,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
return NOTIFY_DONE;
|
|
}
|
|
|
|
static inline int
|
|
register_switchdev_blocking_notifier(struct notifier_block *nb)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int
|
|
unregister_switchdev_blocking_notifier(struct notifier_block *nb)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int
|
|
call_switchdev_blocking_notifiers(unsigned long val,
|
|
struct net_device *dev,
|
|
struct switchdev_notifier_info *info,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
return NOTIFY_DONE;
|
|
}
|
|
|
|
static inline int
|
|
switchdev_handle_fdb_event_to_device(struct net_device *dev, unsigned long event,
|
|
const struct switchdev_notifier_fdb_info *fdb_info,
|
|
bool (*check_cb)(const struct net_device *dev),
|
|
bool (*foreign_dev_check_cb)(const struct net_device *dev,
|
|
const struct net_device *foreign_dev),
|
|
int (*mod_cb)(struct net_device *dev, struct net_device *orig_dev,
|
|
unsigned long event, const void *ctx,
|
|
const struct switchdev_notifier_fdb_info *fdb_info))
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int
|
|
switchdev_handle_port_obj_add(struct net_device *dev,
|
|
struct switchdev_notifier_port_obj_info *port_obj_info,
|
|
bool (*check_cb)(const struct net_device *dev),
|
|
int (*add_cb)(struct net_device *dev, const void *ctx,
|
|
const struct switchdev_obj *obj,
|
|
struct netlink_ext_ack *extack))
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int switchdev_handle_port_obj_add_foreign(struct net_device *dev,
|
|
struct switchdev_notifier_port_obj_info *port_obj_info,
|
|
bool (*check_cb)(const struct net_device *dev),
|
|
bool (*foreign_dev_check_cb)(const struct net_device *dev,
|
|
const struct net_device *foreign_dev),
|
|
int (*add_cb)(struct net_device *dev, const void *ctx,
|
|
const struct switchdev_obj *obj,
|
|
struct netlink_ext_ack *extack))
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int
|
|
switchdev_handle_port_obj_del(struct net_device *dev,
|
|
struct switchdev_notifier_port_obj_info *port_obj_info,
|
|
bool (*check_cb)(const struct net_device *dev),
|
|
int (*del_cb)(struct net_device *dev, const void *ctx,
|
|
const struct switchdev_obj *obj))
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int
|
|
switchdev_handle_port_obj_del_foreign(struct net_device *dev,
|
|
struct switchdev_notifier_port_obj_info *port_obj_info,
|
|
bool (*check_cb)(const struct net_device *dev),
|
|
bool (*foreign_dev_check_cb)(const struct net_device *dev,
|
|
const struct net_device *foreign_dev),
|
|
int (*del_cb)(struct net_device *dev, const void *ctx,
|
|
const struct switchdev_obj *obj))
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int
|
|
switchdev_handle_port_attr_set(struct net_device *dev,
|
|
struct switchdev_notifier_port_attr_info *port_attr_info,
|
|
bool (*check_cb)(const struct net_device *dev),
|
|
int (*set_cb)(struct net_device *dev, const void *ctx,
|
|
const struct switchdev_attr *attr,
|
|
struct netlink_ext_ack *extack))
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#endif /* _LINUX_SWITCHDEV_H_ */
|