tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * net/dsa/dsa_priv.h - Hardware switch handling
3 * Copyright (c) 2008-2009 Marvell Semiconductor
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 */
10
11#ifndef __DSA_PRIV_H
12#define __DSA_PRIV_H
13
14#include <linux/phy.h>
15#include <linux/netdevice.h>
16#include <linux/netpoll.h>
17#include <net/dsa.h>
18
19enum {
20 DSA_NOTIFIER_AGEING_TIME,
21 DSA_NOTIFIER_BRIDGE_JOIN,
22 DSA_NOTIFIER_BRIDGE_LEAVE,
23 DSA_NOTIFIER_FDB_ADD,
24 DSA_NOTIFIER_FDB_DEL,
25 DSA_NOTIFIER_MDB_ADD,
26 DSA_NOTIFIER_MDB_DEL,
27 DSA_NOTIFIER_VLAN_ADD,
28 DSA_NOTIFIER_VLAN_DEL,
29};
30
31/* DSA_NOTIFIER_AGEING_TIME */
32struct dsa_notifier_ageing_time_info {
33 struct switchdev_trans *trans;
34 unsigned int ageing_time;
35};
36
37/* DSA_NOTIFIER_BRIDGE_* */
38struct dsa_notifier_bridge_info {
39 struct net_device *br;
40 int sw_index;
41 int port;
42};
43
44/* DSA_NOTIFIER_FDB_* */
45struct dsa_notifier_fdb_info {
46 int sw_index;
47 int port;
48 const unsigned char *addr;
49 u16 vid;
50};
51
52/* DSA_NOTIFIER_MDB_* */
53struct dsa_notifier_mdb_info {
54 const struct switchdev_obj_port_mdb *mdb;
55 struct switchdev_trans *trans;
56 int sw_index;
57 int port;
58};
59
60/* DSA_NOTIFIER_VLAN_* */
61struct dsa_notifier_vlan_info {
62 const struct switchdev_obj_port_vlan *vlan;
63 struct switchdev_trans *trans;
64 int sw_index;
65 int port;
66};
67
68struct dsa_slave_priv {
69 /* Copy of CPU port xmit for faster access in slave transmit hot path */
70 struct sk_buff * (*xmit)(struct sk_buff *skb,
71 struct net_device *dev);
72
73 struct pcpu_sw_netstats *stats64;
74
75 /* DSA port data, such as switch, port index, etc. */
76 struct dsa_port *dp;
77
78#ifdef CONFIG_NET_POLL_CONTROLLER
79 struct netpoll *netpoll;
80#endif
81
82 /* TC context */
83 struct list_head mall_tc_list;
84};
85
86/* dsa.c */
87const struct dsa_device_ops *dsa_resolve_tag_protocol(int tag_protocol);
88bool dsa_schedule_work(struct work_struct *work);
89const char *dsa_tag_protocol_to_str(const struct dsa_device_ops *ops);
90
91/* legacy.c */
92#if IS_ENABLED(CONFIG_NET_DSA_LEGACY)
93int dsa_legacy_register(void);
94void dsa_legacy_unregister(void);
95#else
96static inline int dsa_legacy_register(void)
97{
98 return 0;
99}
100
101static inline void dsa_legacy_unregister(void) { }
102#endif
103int dsa_legacy_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
104 struct net_device *dev,
105 const unsigned char *addr, u16 vid,
106 u16 flags,
107 struct netlink_ext_ack *extack);
108int dsa_legacy_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
109 struct net_device *dev,
110 const unsigned char *addr, u16 vid);
111
112/* master.c */
113int dsa_master_setup(struct net_device *dev, struct dsa_port *cpu_dp);
114void dsa_master_teardown(struct net_device *dev);
115
116static inline struct net_device *dsa_master_find_slave(struct net_device *dev,
117 int device, int port)
118{
119 struct dsa_port *cpu_dp = dev->dsa_ptr;
120 struct dsa_switch_tree *dst = cpu_dp->dst;
121 struct dsa_switch *ds;
122 struct dsa_port *slave_port;
123
124 if (device < 0 || device >= DSA_MAX_SWITCHES)
125 return NULL;
126
127 ds = dst->ds[device];
128 if (!ds)
129 return NULL;
130
131 if (port < 0 || port >= ds->num_ports)
132 return NULL;
133
134 slave_port = &ds->ports[port];
135
136 if (unlikely(slave_port->type != DSA_PORT_TYPE_USER))
137 return NULL;
138
139 return slave_port->slave;
140}
141
142/* port.c */
143int dsa_port_set_state(struct dsa_port *dp, u8 state,
144 struct switchdev_trans *trans);
145int dsa_port_enable(struct dsa_port *dp, struct phy_device *phy);
146void dsa_port_disable(struct dsa_port *dp);
147int dsa_port_bridge_join(struct dsa_port *dp, struct net_device *br);
148void dsa_port_bridge_leave(struct dsa_port *dp, struct net_device *br);
149int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering,
150 struct switchdev_trans *trans);
151int dsa_port_ageing_time(struct dsa_port *dp, clock_t ageing_clock,
152 struct switchdev_trans *trans);
153int dsa_port_fdb_add(struct dsa_port *dp, const unsigned char *addr,
154 u16 vid);
155int dsa_port_fdb_del(struct dsa_port *dp, const unsigned char *addr,
156 u16 vid);
157int dsa_port_fdb_dump(struct dsa_port *dp, dsa_fdb_dump_cb_t *cb, void *data);
158int dsa_port_mdb_add(const struct dsa_port *dp,
159 const struct switchdev_obj_port_mdb *mdb,
160 struct switchdev_trans *trans);
161int dsa_port_mdb_del(const struct dsa_port *dp,
162 const struct switchdev_obj_port_mdb *mdb);
163int dsa_port_pre_bridge_flags(const struct dsa_port *dp, unsigned long flags,
164 struct switchdev_trans *trans);
165int dsa_port_bridge_flags(const struct dsa_port *dp, unsigned long flags,
166 struct switchdev_trans *trans);
167int dsa_port_vlan_add(struct dsa_port *dp,
168 const struct switchdev_obj_port_vlan *vlan,
169 struct switchdev_trans *trans);
170int dsa_port_vlan_del(struct dsa_port *dp,
171 const struct switchdev_obj_port_vlan *vlan);
172int dsa_port_link_register_of(struct dsa_port *dp);
173void dsa_port_link_unregister_of(struct dsa_port *dp);
174
175/* slave.c */
176extern const struct dsa_device_ops notag_netdev_ops;
177void dsa_slave_mii_bus_init(struct dsa_switch *ds);
178int dsa_slave_create(struct dsa_port *dp);
179void dsa_slave_destroy(struct net_device *slave_dev);
180int dsa_slave_suspend(struct net_device *slave_dev);
181int dsa_slave_resume(struct net_device *slave_dev);
182int dsa_slave_register_notifier(void);
183void dsa_slave_unregister_notifier(void);
184
185static inline struct dsa_port *dsa_slave_to_port(const struct net_device *dev)
186{
187 struct dsa_slave_priv *p = netdev_priv(dev);
188
189 return p->dp;
190}
191
192static inline struct net_device *
193dsa_slave_to_master(const struct net_device *dev)
194{
195 struct dsa_port *dp = dsa_slave_to_port(dev);
196
197 return dp->cpu_dp->master;
198}
199
200/* switch.c */
201int dsa_switch_register_notifier(struct dsa_switch *ds);
202void dsa_switch_unregister_notifier(struct dsa_switch *ds);
203
204/* tag_brcm.c */
205extern const struct dsa_device_ops brcm_netdev_ops;
206extern const struct dsa_device_ops brcm_prepend_netdev_ops;
207
208/* tag_dsa.c */
209extern const struct dsa_device_ops dsa_netdev_ops;
210
211/* tag_edsa.c */
212extern const struct dsa_device_ops edsa_netdev_ops;
213
214/* tag_gswip.c */
215extern const struct dsa_device_ops gswip_netdev_ops;
216
217/* tag_ksz.c */
218extern const struct dsa_device_ops ksz9477_netdev_ops;
219extern const struct dsa_device_ops ksz9893_netdev_ops;
220
221/* tag_lan9303.c */
222extern const struct dsa_device_ops lan9303_netdev_ops;
223
224/* tag_mtk.c */
225extern const struct dsa_device_ops mtk_netdev_ops;
226
227/* tag_qca.c */
228extern const struct dsa_device_ops qca_netdev_ops;
229
230/* tag_trailer.c */
231extern const struct dsa_device_ops trailer_netdev_ops;
232
233#endif