Commit c284b545 authored by Horatiu Vultur's avatar Horatiu Vultur Committed by David S. Miller
Browse files

switchdev: mrp: Extend switchdev API to offload MRP 



Extend switchdev API to add support for MRP. The HW is notified in
following cases:

SWITCHDEV_OBJ_ID_MRP: This is used when a MRP instance is added/removed
  from the MRP ring.

SWITCHDEV_OBJ_ID_RING_ROLE_MRP: This is used when the role of the node
  changes. The current supported roles are MRM and MRC.

SWITCHDEV_OBJ_ID_RING_TEST_MRP: This is used when to start/stop sending
  MRP_Test frames on the mrp ring ports. This is called only on nodes that have
  the role MRM. In case this fails then the SW will generate the frames.

SWITCHDEV_OBJ_ID_RING_STATE_STATE: This is used when the ring changes it states
  to open or closed. This is required to notify HW because the MRP_Test frame
  contains the field MRP_InState which contains this information.

SWITCHDEV_ATTR_ID_MRP_PORT_STATE: This is used when the port's state is
  changed. It can be in blocking/forwarding mode.

SWITCHDEV_ATTR_ID_MRP_PORT_ROLE: This is used when port's role changes. The
  roles of the port can be primary/secondary. This is required to notify HW
  because the MRP_Test frame contains the field MRP_PortRole that contains this
  information.

Signed-off-by: default avatarHoratiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 2f1a11ae

include/net/switchdev.h

+62 −0
Original line number Diff line number Diff line
@@ -40,6 +40,10 @@ enum switchdev_attr_id { 
	SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING,

	SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED,

	SWITCHDEV_ATTR_ID_BRIDGE_MROUTER,

#if IS_ENABLED(CONFIG_BRIDGE_MRP)

	SWITCHDEV_ATTR_ID_MRP_PORT_STATE,

	SWITCHDEV_ATTR_ID_MRP_PORT_ROLE,

#endif

};



struct switchdev_attr {
@@ -55,6 +59,11 @@ struct switchdev_attr { 
		clock_t ageing_time;			/* BRIDGE_AGEING_TIME */

		bool vlan_filtering;			/* BRIDGE_VLAN_FILTERING */

		bool mc_disabled;			/* MC_DISABLED */

#if IS_ENABLED(CONFIG_BRIDGE_MRP)

		u8 mrp_port_state;			/* MRP_PORT_STATE */

		u8 mrp_port_role;			/* MRP_PORT_ROLE */

		u8 mrp_ring_state;			/* MRP_RING_STATE */

#endif

	} u;

};
@@ -63,6 +72,12 @@ enum switchdev_obj_id { 
	SWITCHDEV_OBJ_ID_PORT_VLAN,

	SWITCHDEV_OBJ_ID_PORT_MDB,

	SWITCHDEV_OBJ_ID_HOST_MDB,

#if IS_ENABLED(CONFIG_BRIDGE_MRP)

	SWITCHDEV_OBJ_ID_MRP,

	SWITCHDEV_OBJ_ID_RING_TEST_MRP,

	SWITCHDEV_OBJ_ID_RING_ROLE_MRP,

	SWITCHDEV_OBJ_ID_RING_STATE_MRP,

#endif

};



struct switchdev_obj {
@@ -94,6 +109,53 @@ struct switchdev_obj_port_mdb { 
#define SWITCHDEV_OBJ_PORT_MDB(OBJ) \

	container_of((OBJ), struct switchdev_obj_port_mdb, obj)





#if IS_ENABLED(CONFIG_BRIDGE_MRP)

/* 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;

};



#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;

};



#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;

};



#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)



#endif



typedef int switchdev_obj_dump_cb_t(struct switchdev_obj *obj);



enum switchdev_notifier_type {

CRA Git | Maintained and supported by SUSTech CRA and CCSE