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
15 enum {
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 */
28 struct dsa_notifier_ageing_time_info {
29 struct switchdev_trans *trans;
30 unsigned int ageing_time;
31 };
32
33 /* DSA_NOTIFIER_BRIDGE_* */
34 struct dsa_notifier_bridge_info {
35 struct net_device *br;
36 int sw_index;
37 int port;
38 };
39
40 /* DSA_NOTIFIER_FDB_* */
41 struct 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_* */
49 struct 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_* */
57 struct 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
64 struct 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 */
83 const struct dsa_device_ops *dsa_tag_driver_get(int tag_protocol);
84 void dsa_tag_driver_put(const struct dsa_device_ops *ops);
85
86 bool dsa_schedule_work(struct work_struct *work);
87 const char *dsa_tag_protocol_to_str(const struct dsa_device_ops *ops);
88
89 int 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);
94 int 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 */
99 int dsa_master_setup(struct net_device *dev, struct dsa_port *cpu_dp);
100 void dsa_master_teardown(struct net_device *dev);
101
dsa_master_find_slave(struct net_device * dev,int device,int port)102 static 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 */
129 int dsa_port_set_state(struct dsa_port *dp, u8 state,
130 struct switchdev_trans *trans);
131 int dsa_port_enable(struct dsa_port *dp, struct phy_device *phy);
132 void dsa_port_disable(struct dsa_port *dp);
133 int dsa_port_bridge_join(struct dsa_port *dp, struct net_device *br);
134 void dsa_port_bridge_leave(struct dsa_port *dp, struct net_device *br);
135 int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering,
136 struct switchdev_trans *trans);
137 int dsa_port_ageing_time(struct dsa_port *dp, clock_t ageing_clock,
138 struct switchdev_trans *trans);
139 int dsa_port_fdb_add(struct dsa_port *dp, const unsigned char *addr,
140 u16 vid);
141 int dsa_port_fdb_del(struct dsa_port *dp, const unsigned char *addr,
142 u16 vid);
143 int dsa_port_fdb_dump(struct dsa_port *dp, dsa_fdb_dump_cb_t *cb, void *data);
144 int dsa_port_mdb_add(const struct dsa_port *dp,
145 const struct switchdev_obj_port_mdb *mdb,
146 struct switchdev_trans *trans);
147 int dsa_port_mdb_del(const struct dsa_port *dp,
148 const struct switchdev_obj_port_mdb *mdb);
149 int dsa_port_pre_bridge_flags(const struct dsa_port *dp, unsigned long flags,
150 struct switchdev_trans *trans);
151 int dsa_port_bridge_flags(const struct dsa_port *dp, unsigned long flags,
152 struct switchdev_trans *trans);
153 int dsa_port_mrouter(struct dsa_port *dp, bool mrouter,
154 struct switchdev_trans *trans);
155 int dsa_port_vlan_add(struct dsa_port *dp,
156 const struct switchdev_obj_port_vlan *vlan,
157 struct switchdev_trans *trans);
158 int dsa_port_vlan_del(struct dsa_port *dp,
159 const struct switchdev_obj_port_vlan *vlan);
160 int dsa_port_vid_add(struct dsa_port *dp, u16 vid, u16 flags);
161 int dsa_port_vid_del(struct dsa_port *dp, u16 vid);
162 int dsa_port_link_register_of(struct dsa_port *dp);
163 void dsa_port_link_unregister_of(struct dsa_port *dp);
164 void dsa_port_phylink_validate(struct phylink_config *config,
165 unsigned long *supported,
166 struct phylink_link_state *state);
167 int dsa_port_phylink_mac_link_state(struct phylink_config *config,
168 struct phylink_link_state *state);
169 void dsa_port_phylink_mac_config(struct phylink_config *config,
170 unsigned int mode,
171 const struct phylink_link_state *state);
172 void dsa_port_phylink_mac_an_restart(struct phylink_config *config);
173 void dsa_port_phylink_mac_link_down(struct phylink_config *config,
174 unsigned int mode,
175 phy_interface_t interface);
176 void dsa_port_phylink_mac_link_up(struct phylink_config *config,
177 unsigned int mode,
178 phy_interface_t interface,
179 struct phy_device *phydev);
180 extern const struct phylink_mac_ops dsa_port_phylink_mac_ops;
181
182 /* slave.c */
183 extern const struct dsa_device_ops notag_netdev_ops;
184 void dsa_slave_mii_bus_init(struct dsa_switch *ds);
185 int dsa_slave_create(struct dsa_port *dp);
186 void dsa_slave_destroy(struct net_device *slave_dev);
187 int dsa_slave_suspend(struct net_device *slave_dev);
188 int dsa_slave_resume(struct net_device *slave_dev);
189 int dsa_slave_register_notifier(void);
190 void dsa_slave_unregister_notifier(void);
191
192 void *dsa_defer_xmit(struct sk_buff *skb, struct net_device *dev);
193
dsa_slave_to_port(const struct net_device * dev)194 static 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
201 static inline struct net_device *
dsa_slave_to_master(const struct net_device * dev)202 dsa_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 */
210 int dsa_switch_register_notifier(struct dsa_switch *ds);
211 void dsa_switch_unregister_notifier(struct dsa_switch *ds);
212 #endif
213