net/dsa/dsa_priv.h

   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
 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_vlan_add(struct dsa_port *dp,
 154                       const struct switchdev_obj_port_vlan *vlan,
 155                       struct switchdev_trans *trans);
 156 int dsa_port_vlan_del(struct dsa_port *dp,
 157                       const struct switchdev_obj_port_vlan *vlan);
 158 int dsa_port_vid_add(struct dsa_port *dp, u16 vid, u16 flags);
 159 int dsa_port_vid_del(struct dsa_port *dp, u16 vid);
 160 int dsa_port_link_register_of(struct dsa_port *dp);
 161 void dsa_port_link_unregister_of(struct dsa_port *dp);
 162
 163 /* slave.c */
 164 extern const struct dsa_device_ops notag_netdev_ops;
 165 void dsa_slave_mii_bus_init(struct dsa_switch *ds);
 166 int dsa_slave_create(struct dsa_port *dp);
 167 void dsa_slave_destroy(struct net_device *slave_dev);
 168 int dsa_slave_suspend(struct net_device *slave_dev);
 169 int dsa_slave_resume(struct net_device *slave_dev);
 170 int dsa_slave_register_notifier(void);
 171 void dsa_slave_unregister_notifier(void);
 172
 173 void *dsa_defer_xmit(struct sk_buff *skb, struct net_device *dev);
 174
 175 static inline struct dsa_port *dsa_slave_to_port(const struct net_device *dev)
 176 {
 177         struct dsa_slave_priv *p = netdev_priv(dev);
 178
 179         return p->dp;
 180 }
 181
 182 static inline struct net_device *
 183 dsa_slave_to_master(const struct net_device *dev)
 184 {
 185         struct dsa_port *dp = dsa_slave_to_port(dev);
 186
 187         return dp->cpu_dp->master;
 188 }
 189
 190 /* switch.c */
 191 int dsa_switch_register_notifier(struct dsa_switch *ds);
 192 void dsa_switch_unregister_notifier(struct dsa_switch *ds);
 193 #endif