LXR linux/net/dsa/dsa

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