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};
 26
 27/* DSA_NOTIFIER_AGEING_TIME */
 28struct dsa_notifier_ageing_time_info {
 29	struct switchdev_trans *trans;
 30	unsigned int ageing_time;
 31};
 32
 33/* DSA_NOTIFIER_BRIDGE_* */
 34struct dsa_notifier_bridge_info {
 35	struct net_device *br;
 36	int sw_index;
 37	int port;
 38};
 39
 40/* DSA_NOTIFIER_FDB_* */
 41struct dsa_notifier_fdb_info {
 42	int sw_index;
 43	int port;
 44	const unsigned char *addr;
 45	u16 vid;
 46};
 47
 48/* DSA_NOTIFIER_MDB_* */
 49struct dsa_notifier_mdb_info {
 50	const struct switchdev_obj_port_mdb *mdb;
 51	struct switchdev_trans *trans;
 52	int sw_index;
 53	int port;
 54};
 55
 56/* DSA_NOTIFIER_VLAN_* */
 57struct dsa_notifier_vlan_info {
 58	const struct switchdev_obj_port_vlan *vlan;
 59	struct switchdev_trans *trans;
 60	int sw_index;
 61	int port;
 62};
 63
 64struct dsa_slave_priv {
 65	/* Copy of CPU port xmit for faster access in slave transmit hot path */
 66	struct sk_buff *	(*xmit)(struct sk_buff *skb,
 67					struct net_device *dev);
 68
 69	struct pcpu_sw_netstats	*stats64;
 70
 71	/* DSA port data, such as switch, port index, etc. */
 72	struct dsa_port		*dp;
 73
 74#ifdef CONFIG_NET_POLL_CONTROLLER
 75	struct netpoll		*netpoll;
 76#endif
 77
 78	/* TC context */
 79	struct list_head	mall_tc_list;
 80};
 81
 82/* dsa.c */
 83const struct dsa_device_ops *dsa_tag_driver_get(int tag_protocol);
 84void dsa_tag_driver_put(const struct dsa_device_ops *ops);
 85
 86bool dsa_schedule_work(struct work_struct *work);
 87const char *dsa_tag_protocol_to_str(const struct dsa_device_ops *ops);
 88
 89int dsa_legacy_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 90		       struct net_device *dev,
 91		       const unsigned char *addr, u16 vid,
 92		       u16 flags,
 93		       struct netlink_ext_ack *extack);
 94int dsa_legacy_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
 95		       struct net_device *dev,
 96		       const unsigned char *addr, u16 vid);
 97
 98/* master.c */
 99int dsa_master_setup(struct net_device *dev, struct dsa_port *cpu_dp);
100void dsa_master_teardown(struct net_device *dev);
101
102static inline struct net_device *dsa_master_find_slave(struct net_device *dev,
103						       int device, int port)
104{
105	struct dsa_port *cpu_dp = dev->dsa_ptr;
106	struct dsa_switch_tree *dst = cpu_dp->dst;
107	struct dsa_switch *ds;
108	struct dsa_port *slave_port;
109
110	if (device < 0 || device >= DSA_MAX_SWITCHES)
111		return NULL;
112
113	ds = dst->ds[device];
114	if (!ds)
115		return NULL;
116
117	if (port < 0 || port >= ds->num_ports)
118		return NULL;
119
120	slave_port = &ds->ports[port];
121
122	if (unlikely(slave_port->type != DSA_PORT_TYPE_USER))
123		return NULL;
124
125	return slave_port->slave;
126}
127
128/* port.c */
129int dsa_port_set_state(struct dsa_port *dp, u8 state,
130		       struct switchdev_trans *trans);
131int dsa_port_enable(struct dsa_port *dp, struct phy_device *phy);
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_fdb_add(struct dsa_port *dp, const unsigned char *addr,
140		     u16 vid);
141int dsa_port_fdb_del(struct dsa_port *dp, const unsigned char *addr,
142		     u16 vid);
143int dsa_port_fdb_dump(struct dsa_port *dp, dsa_fdb_dump_cb_t *cb, void *data);
144int dsa_port_mdb_add(const struct dsa_port *dp,
145		     const struct switchdev_obj_port_mdb *mdb,
146		     struct switchdev_trans *trans);
147int dsa_port_mdb_del(const struct dsa_port *dp,
148		     const struct switchdev_obj_port_mdb *mdb);
149int dsa_port_pre_bridge_flags(const struct dsa_port *dp, unsigned long flags,
150			      struct switchdev_trans *trans);
151int dsa_port_bridge_flags(const struct dsa_port *dp, unsigned long flags,
152			  struct switchdev_trans *trans);
153int dsa_port_mrouter(struct dsa_port *dp, bool mrouter,
154		     struct switchdev_trans *trans);
155int dsa_port_vlan_add(struct dsa_port *dp,
156		      const struct switchdev_obj_port_vlan *vlan,
157		      struct switchdev_trans *trans);
158int dsa_port_vlan_del(struct dsa_port *dp,
159		      const struct switchdev_obj_port_vlan *vlan);
160int dsa_port_vid_add(struct dsa_port *dp, u16 vid, u16 flags);
161int dsa_port_vid_del(struct dsa_port *dp, u16 vid);
162int dsa_port_link_register_of(struct dsa_port *dp);
163void dsa_port_link_unregister_of(struct dsa_port *dp);
164void dsa_port_phylink_validate(struct phylink_config *config,
165			       unsigned long *supported,
166			       struct phylink_link_state *state);
167int dsa_port_phylink_mac_link_state(struct phylink_config *config,
168				    struct phylink_link_state *state);
169void dsa_port_phylink_mac_config(struct phylink_config *config,
170				 unsigned int mode,
171				 const struct phylink_link_state *state);
172void dsa_port_phylink_mac_an_restart(struct phylink_config *config);
173void dsa_port_phylink_mac_link_down(struct phylink_config *config,
174				    unsigned int mode,
175				    phy_interface_t interface);
176void dsa_port_phylink_mac_link_up(struct phylink_config *config,
177				  unsigned int mode,
178				  phy_interface_t interface,
179				  struct phy_device *phydev);
180extern const struct phylink_mac_ops dsa_port_phylink_mac_ops;
181
182/* slave.c */
183extern const struct dsa_device_ops notag_netdev_ops;
184void dsa_slave_mii_bus_init(struct dsa_switch *ds);
185int dsa_slave_create(struct dsa_port *dp);
186void dsa_slave_destroy(struct net_device *slave_dev);
187int dsa_slave_suspend(struct net_device *slave_dev);
188int dsa_slave_resume(struct net_device *slave_dev);
189int dsa_slave_register_notifier(void);
190void dsa_slave_unregister_notifier(void);
191
192void *dsa_defer_xmit(struct sk_buff *skb, struct net_device *dev);
193
194static inline struct dsa_port *dsa_slave_to_port(const struct net_device *dev)
195{
196	struct dsa_slave_priv *p = netdev_priv(dev);
197
198	return p->dp;
199}
200
201static inline struct net_device *
202dsa_slave_to_master(const struct net_device *dev)
203{
204	struct dsa_port *dp = dsa_slave_to_port(dev);
205
206	return dp->cpu_dp->master;
207}
208
209/* switch.c */
210int dsa_switch_register_notifier(struct dsa_switch *ds);
211void dsa_switch_unregister_notifier(struct dsa_switch *ds);
212#endif