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493 lines
14 KiB
493 lines
14 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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* include/net/switchdev.h - Switch device API |
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* Copyright (c) 2014-2015 Jiri Pirko <[email protected]> |
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* Copyright (c) 2014-2015 Scott Feldman <[email protected]> |
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*/ |
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#ifndef _LINUX_SWITCHDEV_H_ |
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#define _LINUX_SWITCHDEV_H_ |
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#include <linux/netdevice.h> |
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#include <linux/notifier.h> |
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#include <linux/list.h> |
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#include <net/ip_fib.h> |
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#define SWITCHDEV_F_NO_RECURSE BIT(0) |
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#define SWITCHDEV_F_SKIP_EOPNOTSUPP BIT(1) |
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#define SWITCHDEV_F_DEFER BIT(2) |
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enum switchdev_attr_id { |
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SWITCHDEV_ATTR_ID_UNDEFINED, |
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SWITCHDEV_ATTR_ID_PORT_STP_STATE, |
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SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS, |
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SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS, |
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SWITCHDEV_ATTR_ID_PORT_MROUTER, |
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SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME, |
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SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING, |
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SWITCHDEV_ATTR_ID_BRIDGE_VLAN_PROTOCOL, |
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SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED, |
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SWITCHDEV_ATTR_ID_BRIDGE_MROUTER, |
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SWITCHDEV_ATTR_ID_MRP_PORT_ROLE, |
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}; |
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struct switchdev_brport_flags { |
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unsigned long val; |
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unsigned long mask; |
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}; |
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struct switchdev_attr { |
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struct net_device *orig_dev; |
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enum switchdev_attr_id id; |
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u32 flags; |
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void *complete_priv; |
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void (*complete)(struct net_device *dev, int err, void *priv); |
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union { |
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u8 stp_state; /* PORT_STP_STATE */ |
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struct switchdev_brport_flags brport_flags; /* PORT_BRIDGE_FLAGS */ |
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bool mrouter; /* PORT_MROUTER */ |
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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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u16 vlan_protocol; /* BRIDGE_VLAN_PROTOCOL */ |
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bool mc_disabled; /* MC_DISABLED */ |
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u8 mrp_port_role; /* MRP_PORT_ROLE */ |
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} u; |
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}; |
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enum switchdev_obj_id { |
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SWITCHDEV_OBJ_ID_UNDEFINED, |
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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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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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SWITCHDEV_OBJ_ID_IN_TEST_MRP, |
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SWITCHDEV_OBJ_ID_IN_ROLE_MRP, |
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SWITCHDEV_OBJ_ID_IN_STATE_MRP, |
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}; |
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struct switchdev_obj { |
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struct list_head list; |
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struct net_device *orig_dev; |
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enum switchdev_obj_id id; |
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u32 flags; |
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void *complete_priv; |
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void (*complete)(struct net_device *dev, int err, void *priv); |
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}; |
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/* SWITCHDEV_OBJ_ID_PORT_VLAN */ |
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struct switchdev_obj_port_vlan { |
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struct switchdev_obj obj; |
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u16 flags; |
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u16 vid; |
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}; |
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#define SWITCHDEV_OBJ_PORT_VLAN(OBJ) \ |
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container_of((OBJ), struct switchdev_obj_port_vlan, obj) |
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/* SWITCHDEV_OBJ_ID_PORT_MDB */ |
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struct switchdev_obj_port_mdb { |
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struct switchdev_obj obj; |
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unsigned char addr[ETH_ALEN]; |
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u16 vid; |
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}; |
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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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/* 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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u16 prio; |
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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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bool monitor; |
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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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u8 sw_backup; |
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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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/* SWITCHDEV_OBJ_ID_IN_TEST_MRP */ |
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struct switchdev_obj_in_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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u32 in_id; |
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u32 period; |
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u8 max_miss; |
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}; |
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#define SWITCHDEV_OBJ_IN_TEST_MRP(OBJ) \ |
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container_of((OBJ), struct switchdev_obj_in_test_mrp, obj) |
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/* SWICHDEV_OBJ_ID_IN_ROLE_MRP */ |
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struct switchdev_obj_in_role_mrp { |
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struct switchdev_obj obj; |
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struct net_device *i_port; |
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u32 ring_id; |
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u16 in_id; |
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u8 in_role; |
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u8 sw_backup; |
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}; |
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#define SWITCHDEV_OBJ_IN_ROLE_MRP(OBJ) \ |
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container_of((OBJ), struct switchdev_obj_in_role_mrp, obj) |
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struct switchdev_obj_in_state_mrp { |
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struct switchdev_obj obj; |
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u32 in_id; |
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u8 in_state; |
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}; |
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#define SWITCHDEV_OBJ_IN_STATE_MRP(OBJ) \ |
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container_of((OBJ), struct switchdev_obj_in_state_mrp, obj) |
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typedef int switchdev_obj_dump_cb_t(struct switchdev_obj *obj); |
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struct switchdev_brport { |
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struct net_device *dev; |
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const void *ctx; |
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struct notifier_block *atomic_nb; |
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struct notifier_block *blocking_nb; |
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bool tx_fwd_offload; |
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}; |
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enum switchdev_notifier_type { |
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SWITCHDEV_FDB_ADD_TO_BRIDGE = 1, |
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SWITCHDEV_FDB_DEL_TO_BRIDGE, |
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SWITCHDEV_FDB_ADD_TO_DEVICE, |
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SWITCHDEV_FDB_DEL_TO_DEVICE, |
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SWITCHDEV_FDB_OFFLOADED, |
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SWITCHDEV_FDB_FLUSH_TO_BRIDGE, |
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SWITCHDEV_PORT_OBJ_ADD, /* Blocking. */ |
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SWITCHDEV_PORT_OBJ_DEL, /* Blocking. */ |
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SWITCHDEV_PORT_ATTR_SET, /* May be blocking . */ |
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SWITCHDEV_VXLAN_FDB_ADD_TO_BRIDGE, |
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SWITCHDEV_VXLAN_FDB_DEL_TO_BRIDGE, |
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SWITCHDEV_VXLAN_FDB_ADD_TO_DEVICE, |
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SWITCHDEV_VXLAN_FDB_DEL_TO_DEVICE, |
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SWITCHDEV_VXLAN_FDB_OFFLOADED, |
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SWITCHDEV_BRPORT_OFFLOADED, |
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SWITCHDEV_BRPORT_UNOFFLOADED, |
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}; |
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struct switchdev_notifier_info { |
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struct net_device *dev; |
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struct netlink_ext_ack *extack; |
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const void *ctx; |
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}; |
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struct switchdev_notifier_fdb_info { |
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struct switchdev_notifier_info info; /* must be first */ |
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const unsigned char *addr; |
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u16 vid; |
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u8 added_by_user:1, |
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is_local:1, |
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offloaded:1; |
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}; |
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struct switchdev_notifier_port_obj_info { |
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struct switchdev_notifier_info info; /* must be first */ |
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const struct switchdev_obj *obj; |
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bool handled; |
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}; |
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struct switchdev_notifier_port_attr_info { |
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struct switchdev_notifier_info info; /* must be first */ |
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const struct switchdev_attr *attr; |
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bool handled; |
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}; |
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struct switchdev_notifier_brport_info { |
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struct switchdev_notifier_info info; /* must be first */ |
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const struct switchdev_brport brport; |
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}; |
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static inline struct net_device * |
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switchdev_notifier_info_to_dev(const struct switchdev_notifier_info *info) |
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{ |
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return info->dev; |
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} |
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static inline struct netlink_ext_ack * |
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switchdev_notifier_info_to_extack(const struct switchdev_notifier_info *info) |
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{ |
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return info->extack; |
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} |
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static inline bool |
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switchdev_fdb_is_dynamically_learned(const struct switchdev_notifier_fdb_info *fdb_info) |
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{ |
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return !fdb_info->added_by_user && !fdb_info->is_local; |
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} |
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#ifdef CONFIG_NET_SWITCHDEV |
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int switchdev_bridge_port_offload(struct net_device *brport_dev, |
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struct net_device *dev, const void *ctx, |
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struct notifier_block *atomic_nb, |
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struct notifier_block *blocking_nb, |
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bool tx_fwd_offload, |
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struct netlink_ext_ack *extack); |
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void switchdev_bridge_port_unoffload(struct net_device *brport_dev, |
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const void *ctx, |
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struct notifier_block *atomic_nb, |
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struct notifier_block *blocking_nb); |
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void switchdev_deferred_process(void); |
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int switchdev_port_attr_set(struct net_device *dev, |
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const struct switchdev_attr *attr, |
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struct netlink_ext_ack *extack); |
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int switchdev_port_obj_add(struct net_device *dev, |
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const struct switchdev_obj *obj, |
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struct netlink_ext_ack *extack); |
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int switchdev_port_obj_del(struct net_device *dev, |
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const struct switchdev_obj *obj); |
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int register_switchdev_notifier(struct notifier_block *nb); |
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int unregister_switchdev_notifier(struct notifier_block *nb); |
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int call_switchdev_notifiers(unsigned long val, struct net_device *dev, |
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struct switchdev_notifier_info *info, |
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struct netlink_ext_ack *extack); |
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int register_switchdev_blocking_notifier(struct notifier_block *nb); |
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int unregister_switchdev_blocking_notifier(struct notifier_block *nb); |
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int call_switchdev_blocking_notifiers(unsigned long val, struct net_device *dev, |
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struct switchdev_notifier_info *info, |
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struct netlink_ext_ack *extack); |
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void switchdev_port_fwd_mark_set(struct net_device *dev, |
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struct net_device *group_dev, |
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bool joining); |
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int switchdev_handle_fdb_add_to_device(struct net_device *dev, |
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const struct switchdev_notifier_fdb_info *fdb_info, |
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bool (*check_cb)(const struct net_device *dev), |
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bool (*foreign_dev_check_cb)(const struct net_device *dev, |
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const struct net_device *foreign_dev), |
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int (*add_cb)(struct net_device *dev, |
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const struct net_device *orig_dev, const void *ctx, |
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const struct switchdev_notifier_fdb_info *fdb_info), |
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int (*lag_add_cb)(struct net_device *dev, |
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const struct net_device *orig_dev, const void *ctx, |
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const struct switchdev_notifier_fdb_info *fdb_info)); |
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int switchdev_handle_fdb_del_to_device(struct net_device *dev, |
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const struct switchdev_notifier_fdb_info *fdb_info, |
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bool (*check_cb)(const struct net_device *dev), |
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bool (*foreign_dev_check_cb)(const struct net_device *dev, |
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const struct net_device *foreign_dev), |
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int (*del_cb)(struct net_device *dev, |
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const struct net_device *orig_dev, const void *ctx, |
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const struct switchdev_notifier_fdb_info *fdb_info), |
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int (*lag_del_cb)(struct net_device *dev, |
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const struct net_device *orig_dev, const void *ctx, |
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const struct switchdev_notifier_fdb_info *fdb_info)); |
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int switchdev_handle_port_obj_add(struct net_device *dev, |
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struct switchdev_notifier_port_obj_info *port_obj_info, |
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bool (*check_cb)(const struct net_device *dev), |
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int (*add_cb)(struct net_device *dev, const void *ctx, |
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const struct switchdev_obj *obj, |
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struct netlink_ext_ack *extack)); |
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int switchdev_handle_port_obj_del(struct net_device *dev, |
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struct switchdev_notifier_port_obj_info *port_obj_info, |
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bool (*check_cb)(const struct net_device *dev), |
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int (*del_cb)(struct net_device *dev, const void *ctx, |
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const struct switchdev_obj *obj)); |
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int switchdev_handle_port_attr_set(struct net_device *dev, |
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struct switchdev_notifier_port_attr_info *port_attr_info, |
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bool (*check_cb)(const struct net_device *dev), |
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int (*set_cb)(struct net_device *dev, const void *ctx, |
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const struct switchdev_attr *attr, |
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struct netlink_ext_ack *extack)); |
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#else |
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static inline int |
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switchdev_bridge_port_offload(struct net_device *brport_dev, |
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struct net_device *dev, const void *ctx, |
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struct notifier_block *atomic_nb, |
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struct notifier_block *blocking_nb, |
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bool tx_fwd_offload, |
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struct netlink_ext_ack *extack) |
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{ |
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return -EOPNOTSUPP; |
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} |
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static inline void |
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switchdev_bridge_port_unoffload(struct net_device *brport_dev, |
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const void *ctx, |
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struct notifier_block *atomic_nb, |
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struct notifier_block *blocking_nb) |
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{ |
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} |
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static inline void switchdev_deferred_process(void) |
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{ |
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} |
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static inline int switchdev_port_attr_set(struct net_device *dev, |
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const struct switchdev_attr *attr, |
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struct netlink_ext_ack *extack) |
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{ |
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return -EOPNOTSUPP; |
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} |
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static inline int switchdev_port_obj_add(struct net_device *dev, |
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const struct switchdev_obj *obj, |
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struct netlink_ext_ack *extack) |
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{ |
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return -EOPNOTSUPP; |
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} |
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static inline int switchdev_port_obj_del(struct net_device *dev, |
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const struct switchdev_obj *obj) |
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{ |
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return -EOPNOTSUPP; |
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} |
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static inline int register_switchdev_notifier(struct notifier_block *nb) |
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{ |
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return 0; |
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} |
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static inline int unregister_switchdev_notifier(struct notifier_block *nb) |
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{ |
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return 0; |
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} |
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static inline int call_switchdev_notifiers(unsigned long val, |
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struct net_device *dev, |
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struct switchdev_notifier_info *info, |
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struct netlink_ext_ack *extack) |
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{ |
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return NOTIFY_DONE; |
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} |
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static inline int |
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register_switchdev_blocking_notifier(struct notifier_block *nb) |
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{ |
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return 0; |
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} |
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static inline int |
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unregister_switchdev_blocking_notifier(struct notifier_block *nb) |
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{ |
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return 0; |
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} |
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static inline int |
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call_switchdev_blocking_notifiers(unsigned long val, |
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struct net_device *dev, |
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struct switchdev_notifier_info *info, |
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struct netlink_ext_ack *extack) |
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{ |
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return NOTIFY_DONE; |
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} |
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static inline int |
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switchdev_handle_fdb_add_to_device(struct net_device *dev, |
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const struct switchdev_notifier_fdb_info *fdb_info, |
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bool (*check_cb)(const struct net_device *dev), |
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bool (*foreign_dev_check_cb)(const struct net_device *dev, |
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const struct net_device *foreign_dev), |
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int (*add_cb)(struct net_device *dev, |
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const struct net_device *orig_dev, const void *ctx, |
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const struct switchdev_notifier_fdb_info *fdb_info), |
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int (*lag_add_cb)(struct net_device *dev, |
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const struct net_device *orig_dev, const void *ctx, |
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const struct switchdev_notifier_fdb_info *fdb_info)) |
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{ |
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return 0; |
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} |
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static inline int |
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switchdev_handle_fdb_del_to_device(struct net_device *dev, |
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const struct switchdev_notifier_fdb_info *fdb_info, |
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bool (*check_cb)(const struct net_device *dev), |
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bool (*foreign_dev_check_cb)(const struct net_device *dev, |
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const struct net_device *foreign_dev), |
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int (*del_cb)(struct net_device *dev, |
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const struct net_device *orig_dev, const void *ctx, |
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const struct switchdev_notifier_fdb_info *fdb_info), |
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int (*lag_del_cb)(struct net_device *dev, |
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const struct net_device *orig_dev, const void *ctx, |
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const struct switchdev_notifier_fdb_info *fdb_info)) |
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{ |
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return 0; |
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} |
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static inline int |
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switchdev_handle_port_obj_add(struct net_device *dev, |
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struct switchdev_notifier_port_obj_info *port_obj_info, |
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bool (*check_cb)(const struct net_device *dev), |
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int (*add_cb)(struct net_device *dev, const void *ctx, |
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const struct switchdev_obj *obj, |
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struct netlink_ext_ack *extack)) |
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{ |
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return 0; |
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} |
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static inline int |
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switchdev_handle_port_obj_del(struct net_device *dev, |
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struct switchdev_notifier_port_obj_info *port_obj_info, |
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bool (*check_cb)(const struct net_device *dev), |
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int (*del_cb)(struct net_device *dev, const void *ctx, |
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const struct switchdev_obj *obj)) |
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{ |
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return 0; |
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} |
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static inline int |
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switchdev_handle_port_attr_set(struct net_device *dev, |
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struct switchdev_notifier_port_attr_info *port_attr_info, |
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bool (*check_cb)(const struct net_device *dev), |
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int (*set_cb)(struct net_device *dev, const void *ctx, |
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const struct switchdev_attr *attr, |
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struct netlink_ext_ack *extack)) |
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{ |
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return 0; |
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} |
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#endif |
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#endif /* _LINUX_SWITCHDEV_H_ */
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