2874c5fd28
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
301 lines
8 KiB
C
301 lines
8 KiB
C
/* 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 <jiri@resnulli.us>
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* Copyright (c) 2014-2015 Scott Feldman <sfeldma@gmail.com>
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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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struct switchdev_trans {
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bool ph_prepare;
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};
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static inline bool switchdev_trans_ph_prepare(struct switchdev_trans *trans)
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{
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return trans && trans->ph_prepare;
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}
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static inline bool switchdev_trans_ph_commit(struct switchdev_trans *trans)
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{
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return trans && !trans->ph_prepare;
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}
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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_MC_DISABLED,
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SWITCHDEV_ATTR_ID_BRIDGE_MROUTER,
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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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unsigned long brport_flags; /* PORT_{PRE}_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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bool mc_disabled; /* MC_DISABLED */
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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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};
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struct switchdev_obj {
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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_begin;
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u16 vid_end;
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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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typedef int switchdev_obj_dump_cb_t(struct switchdev_obj *obj);
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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_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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};
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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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};
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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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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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struct switchdev_trans *trans;
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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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struct switchdev_trans *trans;
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bool handled;
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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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#ifdef CONFIG_NET_SWITCHDEV
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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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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_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,
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const struct switchdev_obj *obj,
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struct switchdev_trans *trans,
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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,
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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,
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const struct switchdev_attr *attr,
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struct switchdev_trans *trans));
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#else
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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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{
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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_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,
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const struct switchdev_obj *obj,
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struct switchdev_trans *trans,
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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,
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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,
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const struct switchdev_attr *attr,
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struct switchdev_trans *trans))
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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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