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         DSA_NOTIFIER_MTU,
  26 };
  27
  28 /* DSA_NOTIFIER_AGEING_TIME */
  29 struct dsa_notifier_ageing_time_info {
  30         struct switchdev_trans *trans;
  31         unsigned int ageing_time;
  32 };
  33
  34 /* DSA_NOTIFIER_BRIDGE_* */
  35 struct dsa_notifier_bridge_info {
  36         struct net_device *br;
  37         int sw_index;
  38         int port;
  39 };
  40
  41 /* DSA_NOTIFIER_FDB_* */
  42 struct dsa_notifier_fdb_info {
  43         int sw_index;
  44         int port;
  45         const unsigned char *addr;
  46         u16 vid;
  47 };
  48
  49 /* DSA_NOTIFIER_MDB_* */
  50 struct dsa_notifier_mdb_info {
  51         const struct switchdev_obj_port_mdb *mdb;
  52         struct switchdev_trans *trans;
  53         int sw_index;
  54         int port;
  55 };
  56
  57 /* DSA_NOTIFIER_VLAN_* */
  58 struct dsa_notifier_vlan_info {
  59         const struct switchdev_obj_port_vlan *vlan;
  60         struct switchdev_trans *trans;
  61         int sw_index;
  62         int port;
  63 };
  64
  65 /* DSA_NOTIFIER_MTU */
  66 struct dsa_notifier_mtu_info {
  67         bool propagate_upstream;
  68         int sw_index;
  69         int port;
  70         int mtu;
  71 };
  72
  73 struct dsa_slave_priv {
  74         /* Copy of CPU port xmit for faster access in slave transmit hot path */
  75         struct sk_buff *        (*xmit)(struct sk_buff *skb,
  76                                         struct net_device *dev);
  77
  78         struct pcpu_sw_netstats *stats64;
  79
  80         /* DSA port data, such as switch, port index, etc. */
  81         struct dsa_port         *dp;
  82
  83 #ifdef CONFIG_NET_POLL_CONTROLLER
  84         struct netpoll          *netpoll;
  85 #endif
  86
  87         /* TC context */
  88         struct list_head        mall_tc_list;
  89 };
  90
  91 /* dsa.c */
  92 const struct dsa_device_ops *dsa_tag_driver_get(int tag_protocol);
  93 void dsa_tag_driver_put(const struct dsa_device_ops *ops);
  94
  95 bool dsa_schedule_work(struct work_struct *work);
  96 const char *dsa_tag_protocol_to_str(const struct dsa_device_ops *ops);
  97
  98 int dsa_legacy_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
  99                        struct net_device *dev,
 100                        const unsigned char *addr, u16 vid,
 101                        u16 flags,
 102                        struct netlink_ext_ack *extack);
 103 int dsa_legacy_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
 104                        struct net_device *dev,
 105                        const unsigned char *addr, u16 vid);
 106
 107 /* master.c */
 108 int dsa_master_setup(struct net_device *dev, struct dsa_port *cpu_dp);
 109 void dsa_master_teardown(struct net_device *dev);
 110
 111 static inline struct net_device *dsa_master_find_slave(struct net_device *dev,
 112                                                        int device, int port)
 113 {
 114         struct dsa_port *cpu_dp = dev->dsa_ptr;
 115         struct dsa_switch_tree *dst = cpu_dp->dst;
 116         struct dsa_port *dp;
 117
 118         list_for_each_entry(dp, &dst->ports, list)
 119                 if (dp->ds->index == device && dp->index == port &&
 120                     dp->type == DSA_PORT_TYPE_USER)
 121                         return dp->slave;
 122
 123         return NULL;
 124 }
 125
 126 /* port.c */
 127 int dsa_port_set_state(struct dsa_port *dp, u8 state,
 128                        struct switchdev_trans *trans);
 129 int dsa_port_enable_rt(struct dsa_port *dp, struct phy_device *phy);
 130 int dsa_port_enable(struct dsa_port *dp, struct phy_device *phy);
 131 void dsa_port_disable_rt(struct dsa_port *dp);
 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_mtu_change(struct dsa_port *dp, int new_mtu,
 140                         bool propagate_upstream);
 141 int dsa_port_fdb_add(struct dsa_port *dp, const unsigned char *addr,
 142                      u16 vid);
 143 int dsa_port_fdb_del(struct dsa_port *dp, const unsigned char *addr,
 144                      u16 vid);
 145 int dsa_port_fdb_dump(struct dsa_port *dp, dsa_fdb_dump_cb_t *cb, void *data);
 146 int dsa_port_mdb_add(const struct dsa_port *dp,
 147                      const struct switchdev_obj_port_mdb *mdb,
 148                      struct switchdev_trans *trans);
 149 int dsa_port_mdb_del(const struct dsa_port *dp,
 150                      const struct switchdev_obj_port_mdb *mdb);
 151 int dsa_port_pre_bridge_flags(const struct dsa_port *dp, unsigned long flags,
 152                               struct switchdev_trans *trans);
 153 int dsa_port_bridge_flags(const struct dsa_port *dp, unsigned long flags,
 154                           struct switchdev_trans *trans);
 155 int dsa_port_mrouter(struct dsa_port *dp, bool mrouter,
 156                      struct switchdev_trans *trans);
 157 int dsa_port_vlan_add(struct dsa_port *dp,
 158                       const struct switchdev_obj_port_vlan *vlan,
 159                       struct switchdev_trans *trans);
 160 int dsa_port_vlan_del(struct dsa_port *dp,
 161                       const struct switchdev_obj_port_vlan *vlan);
 162 int dsa_port_vid_add(struct dsa_port *dp, u16 vid, u16 flags);
 163 int dsa_port_vid_del(struct dsa_port *dp, u16 vid);
 164 int dsa_port_link_register_of(struct dsa_port *dp);
 165 void dsa_port_link_unregister_of(struct dsa_port *dp);
 166 extern const struct phylink_mac_ops dsa_port_phylink_mac_ops;
 167
 168 /* slave.c */
 169 extern const struct dsa_device_ops notag_netdev_ops;
 170 void dsa_slave_mii_bus_init(struct dsa_switch *ds);
 171 int dsa_slave_create(struct dsa_port *dp);
 172 void dsa_slave_destroy(struct net_device *slave_dev);
 173 bool dsa_slave_dev_check(const struct net_device *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 /* dsa2.c */
 199 extern struct list_head dsa_tree_list;
 200
 201 #endif