LXR linux/net/dsa/dsa

   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);
  89
  90/* legacy.c */
  91#if IS_ENABLED(CONFIG_NET_DSA_LEGACY)
  92int dsa_legacy_register(void);
  93void dsa_legacy_unregister(void);
  94#else
  95static inline int dsa_legacy_register(void)
  96{
  97        return 0;
  98}
  99
 100static inline void dsa_legacy_unregister(void) { }
 101#endif
 102int 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                       struct netlink_ext_ack *extack);
 107int dsa_legacy_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
 108                       struct net_device *dev,
 109                       const unsigned char *addr, u16 vid);
 110
 111/* master.c */
 112int dsa_master_setup(struct net_device *dev, struct dsa_port *cpu_dp);
 113void dsa_master_teardown(struct net_device *dev);
 114
 115static inline struct net_device *dsa_master_find_slave(struct net_device *dev,
 116                                                       int device, int port)
 117{
 118        struct dsa_port *cpu_dp = dev->dsa_ptr;
 119        struct dsa_switch_tree *dst = cpu_dp->dst;
 120        struct dsa_switch *ds;
 121        struct dsa_port *slave_port;
 122
 123        if (device < 0 || device >= DSA_MAX_SWITCHES)
 124                return NULL;
 125
 126        ds = dst->ds[device];
 127        if (!ds)
 128                return NULL;
 129
 130        if (port < 0 || port >= ds->num_ports)
 131                return NULL;
 132
 133        slave_port = &ds->ports[port];
 134
 135        if (unlikely(slave_port->type != DSA_PORT_TYPE_USER))
 136                return NULL;
 137
 138        return slave_port->slave;
 139}
 140
 141/* port.c */
 142int dsa_port_set_state(struct dsa_port *dp, u8 state,
 143                       struct switchdev_trans *trans);
 144int dsa_port_enable(struct dsa_port *dp, struct phy_device *phy);
 145void dsa_port_disable(struct dsa_port *dp, struct phy_device *phy);
 146int dsa_port_bridge_join(struct dsa_port *dp, struct net_device *br);
 147void dsa_port_bridge_leave(struct dsa_port *dp, struct net_device *br);
 148int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering,
 149                            struct switchdev_trans *trans);
 150int dsa_port_ageing_time(struct dsa_port *dp, clock_t ageing_clock,
 151                         struct switchdev_trans *trans);
 152int dsa_port_fdb_add(struct dsa_port *dp, const unsigned char *addr,
 153                     u16 vid);
 154int dsa_port_fdb_del(struct dsa_port *dp, const unsigned char *addr,
 155                     u16 vid);
 156int dsa_port_fdb_dump(struct dsa_port *dp, dsa_fdb_dump_cb_t *cb, void *data);
 157int dsa_port_mdb_add(const struct dsa_port *dp,
 158                     const struct switchdev_obj_port_mdb *mdb,
 159                     struct switchdev_trans *trans);
 160int dsa_port_mdb_del(const struct dsa_port *dp,
 161                     const struct switchdev_obj_port_mdb *mdb);
 162int dsa_port_vlan_add(struct dsa_port *dp,
 163                      const struct switchdev_obj_port_vlan *vlan,
 164                      struct switchdev_trans *trans);
 165int dsa_port_vlan_del(struct dsa_port *dp,
 166                      const struct switchdev_obj_port_vlan *vlan);
 167int dsa_port_link_register_of(struct dsa_port *dp);
 168void dsa_port_link_unregister_of(struct dsa_port *dp);
 169
 170/* slave.c */
 171extern const struct dsa_device_ops notag_netdev_ops;
 172void dsa_slave_mii_bus_init(struct dsa_switch *ds);
 173int dsa_slave_create(struct dsa_port *dp);
 174void dsa_slave_destroy(struct net_device *slave_dev);
 175int dsa_slave_suspend(struct net_device *slave_dev);
 176int dsa_slave_resume(struct net_device *slave_dev);
 177int dsa_slave_register_notifier(void);
 178void dsa_slave_unregister_notifier(void);
 179
 180static inline struct dsa_port *dsa_slave_to_port(const struct net_device *dev)
 181{
 182        struct dsa_slave_priv *p = netdev_priv(dev);
 183
 184        return p->dp;
 185}
 186
 187static inline struct net_device *
 188dsa_slave_to_master(const struct net_device *dev)
 189{
 190        struct dsa_port *dp = dsa_slave_to_port(dev);
 191
 192        return dp->cpu_dp->master;
 193}
 194
 195/* switch.c */
 196int dsa_switch_register_notifier(struct dsa_switch *ds);
 197void dsa_switch_unregister_notifier(struct dsa_switch *ds);
 198
 199/* tag_brcm.c */
 200extern const struct dsa_device_ops brcm_netdev_ops;
 201extern const struct dsa_device_ops brcm_prepend_netdev_ops;
 202
 203/* tag_dsa.c */
 204extern const struct dsa_device_ops dsa_netdev_ops;
 205
 206/* tag_edsa.c */
 207extern const struct dsa_device_ops edsa_netdev_ops;
 208
 209/* tag_ksz.c */
 210extern const struct dsa_device_ops ksz_netdev_ops;
 211
 212/* tag_lan9303.c */
 213extern const struct dsa_device_ops lan9303_netdev_ops;
 214
 215/* tag_mtk.c */
 216extern const struct dsa_device_ops mtk_netdev_ops;
 217
 218/* tag_qca.c */
 219extern const struct dsa_device_ops qca_netdev_ops;
 220
 221/* tag_trailer.c */
 222extern const struct dsa_device_ops trailer_netdev_ops;
 223
 224#endif
 225