/net/dsa/dsa_priv.h

  1/* SPDX-License-Identifier: GPL-2.0-or-later */
  2/*
  3 * net/dsa/dsa_priv.h - Hardware switch handling
  4 * Copyright (c) 2008-2009 Marvell Semiconductor
  5 */
  6
  7#ifndef __DSA_PRIV_H
  8#define __DSA_PRIV_H
  9
 10#include <linux/phy.h>
 11#include <linux/netdevice.h>
 12#include <linux/netpoll.h>
 13#include <net/dsa.h>
 14
 15enum {
 16	DSA_NOTIFIER_AGEING_TIME,
 17	DSA_NOTIFIER_BRIDGE_JOIN,
 18	DSA_NOTIFIER_BRIDGE_LEAVE,
 19	DSA_NOTIFIER_FDB_ADD,
 20	DSA_NOTIFIER_FDB_DEL,
 21	DSA_NOTIFIER_MDB_ADD,
 22	DSA_NOTIFIER_MDB_DEL,
 23	DSA_NOTIFIER_VLAN_ADD,
 24	DSA_NOTIFIER_VLAN_DEL,
 25	DSA_NOTIFIER_MTU,
 26};
 27
 28/* DSA_NOTIFIER_AGEING_TIME */
 29struct dsa_notifier_ageing_time_info {
 30	struct switchdev_trans *trans;
 31	unsigned int ageing_time;
 32};
 33
 34/* DSA_NOTIFIER_BRIDGE_* */
 35struct dsa_notifier_bridge_info {
 36	struct net_device *br;
 37	int sw_index;
 38	int port;
 39};
 40
 41/* DSA_NOTIFIER_FDB_* */
 42struct dsa_notifier_fdb_info {
 43	int sw_index;
 44	int port;
 45	const unsigned char *addr;
 46	u16 vid;
 47};
 48
 49/* DSA_NOTIFIER_MDB_* */
 50struct dsa_notifier_mdb_info {
 51	const struct switchdev_obj_port_mdb *mdb;
 52	struct switchdev_trans *trans;
 53	int sw_index;
 54	int port;
 55};
 56
 57/* DSA_NOTIFIER_VLAN_* */
 58struct dsa_notifier_vlan_info {
 59	const struct switchdev_obj_port_vlan *vlan;
 60	struct switchdev_trans *trans;
 61	int sw_index;
 62	int port;
 63};
 64
 65/* DSA_NOTIFIER_MTU */
 66struct dsa_notifier_mtu_info {
 67	bool propagate_upstream;
 68	int sw_index;
 69	int port;
 70	int mtu;
 71};
 72
 73struct dsa_slave_priv {
 74	/* Copy of CPU port xmit for faster access in slave transmit hot path */
 75	struct sk_buff *	(*xmit)(struct sk_buff *skb,
 76					struct net_device *dev);
 77
 78	struct pcpu_sw_netstats	*stats64;
 79
 80	/* DSA port data, such as switch, port index, etc. */
 81	struct dsa_port		*dp;
 82
 83#ifdef CONFIG_NET_POLL_CONTROLLER
 84	struct netpoll		*netpoll;
 85#endif
 86
 87	/* TC context */
 88	struct list_head	mall_tc_list;
 89};
 90
 91/* dsa.c */
 92const struct dsa_device_ops *dsa_tag_driver_get(int tag_protocol);
 93void dsa_tag_driver_put(const struct dsa_device_ops *ops);
 94
 95bool dsa_schedule_work(struct work_struct *work);
 96const char *dsa_tag_protocol_to_str(const struct dsa_device_ops *ops);
 97
 98int dsa_legacy_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 99		       struct net_device *dev,
100		       const unsigned char *addr, u16 vid,
101		       u16 flags,
102		       struct netlink_ext_ack *extack);
103int dsa_legacy_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
104		       struct net_device *dev,
105		       const unsigned char *addr, u16 vid);
106
107/* master.c */
108int dsa_master_setup(struct net_device *dev, struct dsa_port *cpu_dp);
109void dsa_master_teardown(struct net_device *dev);
110
111static inline struct net_device *dsa_master_find_slave(struct net_device *dev,
112						       int device, int port)
113{
114	struct dsa_port *cpu_dp = dev->dsa_ptr;
115	struct dsa_switch_tree *dst = cpu_dp->dst;
116	struct dsa_port *dp;
117
118	list_for_each_entry(dp, &dst->ports, list)
119		if (dp->ds->index == device && dp->index == port &&
120		    dp->type == DSA_PORT_TYPE_USER)
121			return dp->slave;
122
123	return NULL;
124}
125
126/* port.c */
127int dsa_port_set_state(struct dsa_port *dp, u8 state,
128		       struct switchdev_trans *trans);
129int dsa_port_enable_rt(struct dsa_port *dp, struct phy_device *phy);
130int dsa_port_enable(struct dsa_port *dp, struct phy_device *phy);
131void dsa_port_disable_rt(struct dsa_port *dp);
132void dsa_port_disable(struct dsa_port *dp);
133int dsa_port_bridge_join(struct dsa_port *dp, struct net_device *br);
134void dsa_port_bridge_leave(struct dsa_port *dp, struct net_device *br);
135int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering,
136			    struct switchdev_trans *trans);
137int dsa_port_ageing_time(struct dsa_port *dp, clock_t ageing_clock,
138			 struct switchdev_trans *trans);
139int dsa_port_mtu_change(struct dsa_port *dp, int new_mtu,
140			bool propagate_upstream);
141int dsa_port_fdb_add(struct dsa_port *dp, const unsigned char *addr,
142		     u16 vid);
143int dsa_port_fdb_del(struct dsa_port *dp, const unsigned char *addr,
144		     u16 vid);
145int dsa_port_fdb_dump(struct dsa_port *dp, dsa_fdb_dump_cb_t *cb, void *data);
146int dsa_port_mdb_add(const struct dsa_port *dp,
147		     const struct switchdev_obj_port_mdb *mdb,
148		     struct switchdev_trans *trans);
149int dsa_port_mdb_del(const struct dsa_port *dp,
150		     const struct switchdev_obj_port_mdb *mdb);
151int dsa_port_pre_bridge_flags(const struct dsa_port *dp, unsigned long flags,
152			      struct switchdev_trans *trans);
153int dsa_port_bridge_flags(const struct dsa_port *dp, unsigned long flags,
154			  struct switchdev_trans *trans);
155int dsa_port_mrouter(struct dsa_port *dp, bool mrouter,
156		     struct switchdev_trans *trans);
157int dsa_port_vlan_add(struct dsa_port *dp,
158		      const struct switchdev_obj_port_vlan *vlan,
159		      struct switchdev_trans *trans);
160int dsa_port_vlan_del(struct dsa_port *dp,
161		      const struct switchdev_obj_port_vlan *vlan);
162int dsa_port_vid_add(struct dsa_port *dp, u16 vid, u16 flags);
163int dsa_port_vid_del(struct dsa_port *dp, u16 vid);
164int dsa_port_link_register_of(struct dsa_port *dp);
165void dsa_port_link_unregister_of(struct dsa_port *dp);
166extern const struct phylink_mac_ops dsa_port_phylink_mac_ops;
167
168/* slave.c */
169extern const struct dsa_device_ops notag_netdev_ops;
170void dsa_slave_mii_bus_init(struct dsa_switch *ds);
171int dsa_slave_create(struct dsa_port *dp);
172void dsa_slave_destroy(struct net_device *slave_dev);
173bool dsa_slave_dev_check(const struct net_device *dev);
174int dsa_slave_suspend(struct net_device *slave_dev);
175int dsa_slave_resume(struct net_device *slave_dev);
176int dsa_slave_register_notifier(void);
177void dsa_slave_unregister_notifier(void);
178
179static inline struct dsa_port *dsa_slave_to_port(const struct net_device *dev)
180{
181	struct dsa_slave_priv *p = netdev_priv(dev);
182
183	return p->dp;
184}
185
186static inline struct net_device *
187dsa_slave_to_master(const struct net_device *dev)
188{
189	struct dsa_port *dp = dsa_slave_to_port(dev);
190
191	return dp->cpu_dp->master;
192}
193
194/* switch.c */
195int dsa_switch_register_notifier(struct dsa_switch *ds);
196void dsa_switch_unregister_notifier(struct dsa_switch *ds);
197
198/* dsa2.c */
199extern struct list_head dsa_tree_list;
200
201#endif