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: Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -40,6 +40,10 @@ enum switchdev_attr_id {
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SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING,
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SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED,
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SWITCHDEV_ATTR_ID_BRIDGE_MROUTER,
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#if IS_ENABLED(CONFIG_BRIDGE_MRP)
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SWITCHDEV_ATTR_ID_MRP_PORT_STATE,
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SWITCHDEV_ATTR_ID_MRP_PORT_ROLE,
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#endif
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};
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struct switchdev_attr {
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@ -55,6 +59,11 @@ struct switchdev_attr {
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clock_t ageing_time; /* BRIDGE_AGEING_TIME */
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bool vlan_filtering; /* BRIDGE_VLAN_FILTERING */
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bool mc_disabled; /* MC_DISABLED */
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#if IS_ENABLED(CONFIG_BRIDGE_MRP)
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u8 mrp_port_state; /* MRP_PORT_STATE */
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u8 mrp_port_role; /* MRP_PORT_ROLE */
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u8 mrp_ring_state; /* MRP_RING_STATE */
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#endif
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} u;
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};
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@ -63,6 +72,12 @@ enum switchdev_obj_id {
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SWITCHDEV_OBJ_ID_PORT_VLAN,
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SWITCHDEV_OBJ_ID_PORT_MDB,
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SWITCHDEV_OBJ_ID_HOST_MDB,
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#if IS_ENABLED(CONFIG_BRIDGE_MRP)
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SWITCHDEV_OBJ_ID_MRP,
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SWITCHDEV_OBJ_ID_RING_TEST_MRP,
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SWITCHDEV_OBJ_ID_RING_ROLE_MRP,
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SWITCHDEV_OBJ_ID_RING_STATE_MRP,
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#endif
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};
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struct switchdev_obj {
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@ -94,6 +109,53 @@ struct switchdev_obj_port_mdb {
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#define SWITCHDEV_OBJ_PORT_MDB(OBJ) \
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container_of((OBJ), struct switchdev_obj_port_mdb, obj)
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#if IS_ENABLED(CONFIG_BRIDGE_MRP)
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/* SWITCHDEV_OBJ_ID_MRP */
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struct switchdev_obj_mrp {
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struct switchdev_obj obj;
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struct net_device *p_port;
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struct net_device *s_port;
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u32 ring_id;
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};
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#define SWITCHDEV_OBJ_MRP(OBJ) \
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container_of((OBJ), struct switchdev_obj_mrp, obj)
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/* SWITCHDEV_OBJ_ID_RING_TEST_MRP */
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struct switchdev_obj_ring_test_mrp {
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struct switchdev_obj obj;
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/* The value is in us and a value of 0 represents to stop */
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u32 interval;
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u8 max_miss;
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u32 ring_id;
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u32 period;
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};
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#define SWITCHDEV_OBJ_RING_TEST_MRP(OBJ) \
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container_of((OBJ), struct switchdev_obj_ring_test_mrp, obj)
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/* SWICHDEV_OBJ_ID_RING_ROLE_MRP */
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struct switchdev_obj_ring_role_mrp {
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struct switchdev_obj obj;
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u8 ring_role;
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u32 ring_id;
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};
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#define SWITCHDEV_OBJ_RING_ROLE_MRP(OBJ) \
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container_of((OBJ), struct switchdev_obj_ring_role_mrp, obj)
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struct switchdev_obj_ring_state_mrp {
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struct switchdev_obj obj;
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u8 ring_state;
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u32 ring_id;
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};
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#define SWITCHDEV_OBJ_RING_STATE_MRP(OBJ) \
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container_of((OBJ), struct switchdev_obj_ring_state_mrp, obj)
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#endif
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typedef int switchdev_obj_dump_cb_t(struct switchdev_obj *obj);
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enum switchdev_notifier_type {
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