net/dsa/dsa_priv.h

   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
  19 enum {
  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 */
  32 struct dsa_notifier_ageing_time_info {
  33         struct switchdev_trans *trans;
  34         unsigned int ageing_time;
  35 };
  36
  37 /* DSA_NOTIFIER_BRIDGE_* */
  38 struct dsa_notifier_bridge_info {
  39         struct net_device *br;
  40         int sw_index;
  41         int port;
  42 };
  43
  44 /* DSA_NOTIFIER_FDB_* */
  45 struct 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_* */
  53 struct 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_* */
  61 struct 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
  68 struct 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 */
  87 const struct dsa_device_ops *dsa_resolve_tag_protocol(int tag_protocol);
  88 bool dsa_schedule_work(struct work_struct *work);
  89
  90 /* legacy.c */
  91 #if IS_ENABLED(CONFIG_NET_DSA_LEGACY)
  92 int dsa_legacy_register(void);
  93 void dsa_legacy_unregister(void);
  94 #else
  95 static inline int dsa_legacy_register(void)
  96 {
  97         return 0;
  98 }
  99
 100 static inline void dsa_legacy_unregister(void) { }
 101 #endif
 102 int dsa_legacy_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 103                        struct net_device *dev,
 104                        const unsigned char *addr, u16 vid,
 105                        u16 flags);
 106 int dsa_legacy_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
 107                        struct net_device *dev,
 108                        const unsigned char *addr, u16 vid);
 109
 110 /* master.c */
 111 int dsa_master_setup(struct net_device *dev, struct dsa_port *cpu_dp);
 112 void dsa_master_teardown(struct net_device *dev);
 113
 114 static inline struct net_device *dsa_master_find_slave(struct net_device *dev,
 115                                                        int device, int port)
 116 {
 117         struct dsa_port *cpu_dp = dev->dsa_ptr;
 118         struct dsa_switch_tree *dst = cpu_dp->dst;
 119         struct dsa_switch *ds;
 120         struct dsa_port *slave_port;
 121
 122         if (device < 0 || device >= DSA_MAX_SWITCHES)
 123                 return NULL;
 124
 125         ds = dst->ds[device];
 126         if (!ds)
 127                 return NULL;
 128
 129         if (port < 0 || port >= ds->num_ports)
 130                 return NULL;
 131
 132         slave_port = &ds->ports[port];
 133
 134         if (unlikely(slave_port->type != DSA_PORT_TYPE_USER))
 135                 return NULL;
 136
 137         return slave_port->slave;
 138 }
 139
 140 /* port.c */
 141 int dsa_port_set_state(struct dsa_port *dp, u8 state,
 142                        struct switchdev_trans *trans);
 143 int dsa_port_enable(struct dsa_port *dp, struct phy_device *phy);
 144 void dsa_port_disable(struct dsa_port *dp, struct phy_device *phy);
 145 int dsa_port_bridge_join(struct dsa_port *dp, struct net_device *br);
 146 void dsa_port_bridge_leave(struct dsa_port *dp, struct net_device *br);
 147 int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering,
 148                             struct switchdev_trans *trans);
 149 int dsa_port_ageing_time(struct dsa_port *dp, clock_t ageing_clock,
 150                          struct switchdev_trans *trans);
 151 int dsa_port_fdb_add(struct dsa_port *dp, const unsigned char *addr,
 152                      u16 vid);
 153 int dsa_port_fdb_del(struct dsa_port *dp, const unsigned char *addr,
 154                      u16 vid);
 155 int dsa_port_fdb_dump(struct dsa_port *dp, dsa_fdb_dump_cb_t *cb, void *data);
 156 int dsa_port_mdb_add(const struct dsa_port *dp,
 157                      const struct switchdev_obj_port_mdb *mdb,
 158                      struct switchdev_trans *trans);
 159 int dsa_port_mdb_del(const struct dsa_port *dp,
 160                      const struct switchdev_obj_port_mdb *mdb);
 161 int dsa_port_vlan_add(struct dsa_port *dp,
 162                       const struct switchdev_obj_port_vlan *vlan,
 163                       struct switchdev_trans *trans);
 164 int dsa_port_vlan_del(struct dsa_port *dp,
 165                       const struct switchdev_obj_port_vlan *vlan);
 166 int dsa_port_link_register_of(struct dsa_port *dp);
 167 void dsa_port_link_unregister_of(struct dsa_port *dp);
 168
 169 /* slave.c */
 170 extern const struct dsa_device_ops notag_netdev_ops;
 171 void dsa_slave_mii_bus_init(struct dsa_switch *ds);
 172 int dsa_slave_create(struct dsa_port *dp);
 173 void dsa_slave_destroy(struct net_device *slave_dev);
 174 int dsa_slave_suspend(struct net_device *slave_dev);
 175 int dsa_slave_resume(struct net_device *slave_dev);
 176 int dsa_slave_register_notifier(void);
 177 void dsa_slave_unregister_notifier(void);
 178
 179 static 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
 186 static inline struct net_device *
 187 dsa_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 */
 195 int dsa_switch_register_notifier(struct dsa_switch *ds);
 196 void dsa_switch_unregister_notifier(struct dsa_switch *ds);
 197
 198 /* tag_brcm.c */
 199 extern const struct dsa_device_ops brcm_netdev_ops;
 200 extern const struct dsa_device_ops brcm_prepend_netdev_ops;
 201
 202 /* tag_dsa.c */
 203 extern const struct dsa_device_ops dsa_netdev_ops;
 204
 205 /* tag_edsa.c */
 206 extern const struct dsa_device_ops edsa_netdev_ops;
 207
 208 /* tag_ksz.c */
 209 extern const struct dsa_device_ops ksz_netdev_ops;
 210
 211 /* tag_lan9303.c */
 212 extern const struct dsa_device_ops lan9303_netdev_ops;
 213
 214 /* tag_mtk.c */
 215 extern const struct dsa_device_ops mtk_netdev_ops;
 216
 217 /* tag_qca.c */
 218 extern const struct dsa_device_ops qca_netdev_ops;
 219
 220 /* tag_trailer.c */
 221 extern const struct dsa_device_ops trailer_netdev_ops;
 222
 223 #endif