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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/list.h>
15#include <linux/phy.h>
16#include <linux/timer.h>
17#include <linux/workqueue.h>
18#include <net/dsa.h>
19
20struct dsa_switch {
21 /*
22 * Parent switch tree, and switch index.
23 */
24 struct dsa_switch_tree *dst;
25 int index;
26
27 /*
28 * Configuration data for this switch.
29 */
30 struct dsa_chip_data *pd;
31
32 /*
33 * The used switch driver.
34 */
35 struct dsa_switch_driver *drv;
36
37 /*
38 * Reference to mii bus to use.
39 */
40 struct mii_bus *master_mii_bus;
41
42 /*
43 * Slave mii_bus and devices for the individual ports.
44 */
45 u32 dsa_port_mask;
46 u32 phys_port_mask;
47 struct mii_bus *slave_mii_bus;
48 struct net_device *ports[DSA_MAX_PORTS];
49};
50
51struct dsa_switch_tree {
52 /*
53 * Configuration data for the platform device that owns
54 * this dsa switch tree instance.
55 */
56 struct dsa_platform_data *pd;
57
58 /*
59 * Reference to network device to use, and which tagging
60 * protocol to use.
61 */
62 struct net_device *master_netdev;
63 __be16 tag_protocol;
64
65 /*
66 * The switch and port to which the CPU is attached.
67 */
68 s8 cpu_switch;
69 s8 cpu_port;
70
71 /*
72 * Link state polling.
73 */
74 int link_poll_needed;
75 struct work_struct link_poll_work;
76 struct timer_list link_poll_timer;
77
78 /*
79 * Data for the individual switch chips.
80 */
81 struct dsa_switch *ds[DSA_MAX_SWITCHES];
82};
83
84static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p)
85{
86 return !!(ds->index == ds->dst->cpu_switch && p == ds->dst->cpu_port);
87}
88
89static inline u8 dsa_upstream_port(struct dsa_switch *ds)
90{
91 struct dsa_switch_tree *dst = ds->dst;
92
93 /*
94 * If this is the root switch (i.e. the switch that connects
95 * to the CPU), return the cpu port number on this switch.
96 * Else return the (DSA) port number that connects to the
97 * switch that is one hop closer to the cpu.
98 */
99 if (dst->cpu_switch == ds->index)
100 return dst->cpu_port;
101 else
102 return ds->pd->rtable[dst->cpu_switch];
103}
104
105struct dsa_slave_priv {
106 /*
107 * The linux network interface corresponding to this
108 * switch port.
109 */
110 struct net_device *dev;
111
112 /*
113 * Which switch this port is a part of, and the port index
114 * for this port.
115 */
116 struct dsa_switch *parent;
117 u8 port;
118
119 /*
120 * The phylib phy_device pointer for the PHY connected
121 * to this port.
122 */
123 struct phy_device *phy;
124};
125
126struct dsa_switch_driver {
127 struct list_head list;
128
129 __be16 tag_protocol;
130 int priv_size;
131
132 /*
133 * Probing and setup.
134 */
135 char *(*probe)(struct mii_bus *bus, int sw_addr);
136 int (*setup)(struct dsa_switch *ds);
137 int (*set_addr)(struct dsa_switch *ds, u8 *addr);
138
139 /*
140 * Access to the switch's PHY registers.
141 */
142 int (*phy_read)(struct dsa_switch *ds, int port, int regnum);
143 int (*phy_write)(struct dsa_switch *ds, int port,
144 int regnum, u16 val);
145
146 /*
147 * Link state polling and IRQ handling.
148 */
149 void (*poll_link)(struct dsa_switch *ds);
150
151 /*
152 * ethtool hardware statistics.
153 */
154 void (*get_strings)(struct dsa_switch *ds, int port, uint8_t *data);
155 void (*get_ethtool_stats)(struct dsa_switch *ds,
156 int port, uint64_t *data);
157 int (*get_sset_count)(struct dsa_switch *ds);
158};
159
160/* dsa.c */
161extern char dsa_driver_version[];
162void register_switch_driver(struct dsa_switch_driver *type);
163void unregister_switch_driver(struct dsa_switch_driver *type);
164
165/* slave.c */
166void dsa_slave_mii_bus_init(struct dsa_switch *ds);
167struct net_device *dsa_slave_create(struct dsa_switch *ds,
168 struct device *parent,
169 int port, char *name);
170
171/* tag_dsa.c */
172netdev_tx_t dsa_xmit(struct sk_buff *skb, struct net_device *dev);
173
174/* tag_edsa.c */
175netdev_tx_t edsa_xmit(struct sk_buff *skb, struct net_device *dev);
176
177/* tag_trailer.c */
178netdev_tx_t trailer_xmit(struct sk_buff *skb, struct net_device *dev);
179
180
181#endif
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 /*
79 * The phylib phy_device pointer for the PHY connected
80 * to this port.
81 */
82 phy_interface_t phy_interface;
83 int old_link;
84 int old_pause;
85 int old_duplex;
86
87#ifdef CONFIG_NET_POLL_CONTROLLER
88 struct netpoll *netpoll;
89#endif
90
91 /* TC context */
92 struct list_head mall_tc_list;
93};
94
95/* dsa.c */
96const struct dsa_device_ops *dsa_resolve_tag_protocol(int tag_protocol);
97bool dsa_schedule_work(struct work_struct *work);
98
99/* legacy.c */
100#if IS_ENABLED(CONFIG_NET_DSA_LEGACY)
101int dsa_legacy_register(void);
102void dsa_legacy_unregister(void);
103#else
104static inline int dsa_legacy_register(void)
105{
106 return 0;
107}
108
109static inline void dsa_legacy_unregister(void) { }
110#endif
111int dsa_legacy_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
112 struct net_device *dev,
113 const unsigned char *addr, u16 vid,
114 u16 flags);
115int dsa_legacy_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
116 struct net_device *dev,
117 const unsigned char *addr, u16 vid);
118
119/* master.c */
120int dsa_master_setup(struct net_device *dev, struct dsa_port *cpu_dp);
121void dsa_master_teardown(struct net_device *dev);
122
123static inline struct net_device *dsa_master_find_slave(struct net_device *dev,
124 int device, int port)
125{
126 struct dsa_port *cpu_dp = dev->dsa_ptr;
127 struct dsa_switch_tree *dst = cpu_dp->dst;
128 struct dsa_switch *ds;
129 struct dsa_port *slave_port;
130
131 if (device < 0 || device >= DSA_MAX_SWITCHES)
132 return NULL;
133
134 ds = dst->ds[device];
135 if (!ds)
136 return NULL;
137
138 if (port < 0 || port >= ds->num_ports)
139 return NULL;
140
141 slave_port = &ds->ports[port];
142
143 if (unlikely(slave_port->type != DSA_PORT_TYPE_USER))
144 return NULL;
145
146 return slave_port->slave;
147}
148
149/* port.c */
150int dsa_port_set_state(struct dsa_port *dp, u8 state,
151 struct switchdev_trans *trans);
152int dsa_port_enable(struct dsa_port *dp, struct phy_device *phy);
153void dsa_port_disable(struct dsa_port *dp, struct phy_device *phy);
154int dsa_port_bridge_join(struct dsa_port *dp, struct net_device *br);
155void dsa_port_bridge_leave(struct dsa_port *dp, struct net_device *br);
156int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering,
157 struct switchdev_trans *trans);
158int dsa_port_ageing_time(struct dsa_port *dp, clock_t ageing_clock,
159 struct switchdev_trans *trans);
160int dsa_port_fdb_add(struct dsa_port *dp, const unsigned char *addr,
161 u16 vid);
162int dsa_port_fdb_del(struct dsa_port *dp, const unsigned char *addr,
163 u16 vid);
164int dsa_port_fdb_dump(struct dsa_port *dp, dsa_fdb_dump_cb_t *cb, void *data);
165int dsa_port_mdb_add(const struct dsa_port *dp,
166 const struct switchdev_obj_port_mdb *mdb,
167 struct switchdev_trans *trans);
168int dsa_port_mdb_del(const struct dsa_port *dp,
169 const struct switchdev_obj_port_mdb *mdb);
170int dsa_port_vlan_add(struct dsa_port *dp,
171 const struct switchdev_obj_port_vlan *vlan,
172 struct switchdev_trans *trans);
173int dsa_port_vlan_del(struct dsa_port *dp,
174 const struct switchdev_obj_port_vlan *vlan);
175int dsa_port_link_register_of(struct dsa_port *dp);
176void dsa_port_link_unregister_of(struct dsa_port *dp);
177
178/* slave.c */
179extern const struct dsa_device_ops notag_netdev_ops;
180void dsa_slave_mii_bus_init(struct dsa_switch *ds);
181int dsa_slave_create(struct dsa_port *dp);
182void dsa_slave_destroy(struct net_device *slave_dev);
183int dsa_slave_suspend(struct net_device *slave_dev);
184int dsa_slave_resume(struct net_device *slave_dev);
185int dsa_slave_register_notifier(void);
186void dsa_slave_unregister_notifier(void);
187
188static inline struct dsa_port *dsa_slave_to_port(const struct net_device *dev)
189{
190 struct dsa_slave_priv *p = netdev_priv(dev);
191
192 return p->dp;
193}
194
195static inline struct net_device *
196dsa_slave_to_master(const struct net_device *dev)
197{
198 struct dsa_port *dp = dsa_slave_to_port(dev);
199
200 return dp->cpu_dp->master;
201}
202
203/* switch.c */
204int dsa_switch_register_notifier(struct dsa_switch *ds);
205void dsa_switch_unregister_notifier(struct dsa_switch *ds);
206
207/* tag_brcm.c */
208extern const struct dsa_device_ops brcm_netdev_ops;
209extern const struct dsa_device_ops brcm_prepend_netdev_ops;
210
211/* tag_dsa.c */
212extern const struct dsa_device_ops dsa_netdev_ops;
213
214/* tag_edsa.c */
215extern const struct dsa_device_ops edsa_netdev_ops;
216
217/* tag_ksz.c */
218extern const struct dsa_device_ops ksz_netdev_ops;
219
220/* tag_lan9303.c */
221extern const struct dsa_device_ops lan9303_netdev_ops;
222
223/* tag_mtk.c */
224extern const struct dsa_device_ops mtk_netdev_ops;
225
226/* tag_qca.c */
227extern const struct dsa_device_ops qca_netdev_ops;
228
229/* tag_trailer.c */
230extern const struct dsa_device_ops trailer_netdev_ops;
231
232#endif