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 #include <net/gro_cells.h>
  15
  16 enum {
  17         DSA_NOTIFIER_AGEING_TIME,
  18         DSA_NOTIFIER_BRIDGE_JOIN,
  19         DSA_NOTIFIER_BRIDGE_LEAVE,
  20         DSA_NOTIFIER_FDB_ADD,
  21         DSA_NOTIFIER_FDB_DEL,
  22         DSA_NOTIFIER_MDB_ADD,
  23         DSA_NOTIFIER_MDB_DEL,
  24         DSA_NOTIFIER_VLAN_ADD,
  25         DSA_NOTIFIER_VLAN_DEL,
  26         DSA_NOTIFIER_MTU,
  27 };
  28
  29 /* DSA_NOTIFIER_AGEING_TIME */
  30 struct dsa_notifier_ageing_time_info {
  31         struct switchdev_trans *trans;
  32         unsigned int ageing_time;
  33 };
  34
  35 /* DSA_NOTIFIER_BRIDGE_* */
  36 struct dsa_notifier_bridge_info {
  37         struct net_device *br;
  38         int tree_index;
  39         int sw_index;
  40         int port;
  41 };
  42
  43 /* DSA_NOTIFIER_FDB_* */
  44 struct dsa_notifier_fdb_info {
  45         int sw_index;
  46         int port;
  47         const unsigned char *addr;
  48         u16 vid;
  49 };
  50
  51 /* DSA_NOTIFIER_MDB_* */
  52 struct dsa_notifier_mdb_info {
  53         const struct switchdev_obj_port_mdb *mdb;
  54         struct switchdev_trans *trans;
  55         int sw_index;
  56         int port;
  57 };
  58
  59 /* DSA_NOTIFIER_VLAN_* */
  60 struct dsa_notifier_vlan_info {
  61         const struct switchdev_obj_port_vlan *vlan;
  62         struct switchdev_trans *trans;
  63         int sw_index;
  64         int port;
  65 };
  66
  67 /* DSA_NOTIFIER_MTU */
  68 struct dsa_notifier_mtu_info {
  69         bool propagate_upstream;
  70         int sw_index;
  71         int port;
  72         int mtu;
  73 };
  74
  75 struct dsa_slave_priv {
  76         /* Copy of CPU port xmit for faster access in slave transmit hot path */
  77         struct sk_buff *        (*xmit)(struct sk_buff *skb,
  78                                         struct net_device *dev);
  79
  80         struct pcpu_sw_netstats *stats64;
  81
  82         struct gro_cells        gcells;
  83
  84         /* DSA port data, such as switch, port index, etc. */
  85         struct dsa_port         *dp;
  86
  87 #ifdef CONFIG_NET_POLL_CONTROLLER
  88         struct netpoll          *netpoll;
  89 #endif
  90
  91         /* TC context */
  92         struct list_head        mall_tc_list;
  93 };
  94
  95 /* dsa.c */
  96 const struct dsa_device_ops *dsa_tag_driver_get(int tag_protocol);
  97 void dsa_tag_driver_put(const struct dsa_device_ops *ops);
  98
  99 bool dsa_schedule_work(struct work_struct *work);
 100 const char *dsa_tag_protocol_to_str(const struct dsa_device_ops *ops);
 101
 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                        struct netlink_ext_ack *extack);
 107 int 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 */
 112 int dsa_master_setup(struct net_device *dev, struct dsa_port *cpu_dp);
 113 void dsa_master_teardown(struct net_device *dev);
 114
 115 static 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_port *dp;
 121
 122         list_for_each_entry(dp, &dst->ports, list)
 123                 if (dp->ds->index == device && dp->index == port &&
 124                     dp->type == DSA_PORT_TYPE_USER)
 125                         return dp->slave;
 126
 127         return NULL;
 128 }
 129
 130 /* port.c */
 131 int dsa_port_set_state(struct dsa_port *dp, u8 state,
 132                        struct switchdev_trans *trans);
 133 int dsa_port_enable_rt(struct dsa_port *dp, struct phy_device *phy);
 134 int dsa_port_enable(struct dsa_port *dp, struct phy_device *phy);
 135 void dsa_port_disable_rt(struct dsa_port *dp);
 136 void dsa_port_disable(struct dsa_port *dp);
 137 int dsa_port_bridge_join(struct dsa_port *dp, struct net_device *br);
 138 void dsa_port_bridge_leave(struct dsa_port *dp, struct net_device *br);
 139 int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering,
 140                             struct switchdev_trans *trans);
 141 bool dsa_port_skip_vlan_configuration(struct dsa_port *dp);
 142 int dsa_port_ageing_time(struct dsa_port *dp, clock_t ageing_clock,
 143                          struct switchdev_trans *trans);
 144 int dsa_port_mtu_change(struct dsa_port *dp, int new_mtu,
 145                         bool propagate_upstream);
 146 int dsa_port_fdb_add(struct dsa_port *dp, const unsigned char *addr,
 147                      u16 vid);
 148 int dsa_port_fdb_del(struct dsa_port *dp, const unsigned char *addr,
 149                      u16 vid);
 150 int dsa_port_fdb_dump(struct dsa_port *dp, dsa_fdb_dump_cb_t *cb, void *data);
 151 int dsa_port_mdb_add(const struct dsa_port *dp,
 152                      const struct switchdev_obj_port_mdb *mdb,
 153                      struct switchdev_trans *trans);
 154 int dsa_port_mdb_del(const struct dsa_port *dp,
 155                      const struct switchdev_obj_port_mdb *mdb);
 156 int dsa_port_pre_bridge_flags(const struct dsa_port *dp, unsigned long flags,
 157                               struct switchdev_trans *trans);
 158 int dsa_port_bridge_flags(const struct dsa_port *dp, unsigned long flags,
 159                           struct switchdev_trans *trans);
 160 int dsa_port_mrouter(struct dsa_port *dp, bool mrouter,
 161                      struct switchdev_trans *trans);
 162 int dsa_port_vlan_add(struct dsa_port *dp,
 163                       const struct switchdev_obj_port_vlan *vlan,
 164                       struct switchdev_trans *trans);
 165 int dsa_port_vlan_del(struct dsa_port *dp,
 166                       const struct switchdev_obj_port_vlan *vlan);
 167 int dsa_port_vid_add(struct dsa_port *dp, u16 vid, u16 flags);
 168 int dsa_port_vid_del(struct dsa_port *dp, u16 vid);
 169 int dsa_port_link_register_of(struct dsa_port *dp);
 170 void dsa_port_link_unregister_of(struct dsa_port *dp);
 171 extern const struct phylink_mac_ops dsa_port_phylink_mac_ops;
 172
 173 /* slave.c */
 174 extern const struct dsa_device_ops notag_netdev_ops;
 175 void dsa_slave_mii_bus_init(struct dsa_switch *ds);
 176 int dsa_slave_create(struct dsa_port *dp);
 177 void dsa_slave_destroy(struct net_device *slave_dev);
 178 bool dsa_slave_dev_check(const struct net_device *dev);
 179 int dsa_slave_suspend(struct net_device *slave_dev);
 180 int dsa_slave_resume(struct net_device *slave_dev);
 181 int dsa_slave_register_notifier(void);
 182 void dsa_slave_unregister_notifier(void);
 183
 184 static inline struct dsa_port *dsa_slave_to_port(const struct net_device *dev)
 185 {
 186         struct dsa_slave_priv *p = netdev_priv(dev);
 187
 188         return p->dp;
 189 }
 190
 191 static inline struct net_device *
 192 dsa_slave_to_master(const struct net_device *dev)
 193 {
 194         struct dsa_port *dp = dsa_slave_to_port(dev);
 195
 196         return dp->cpu_dp->master;
 197 }
 198
 199 /* switch.c */
 200 int dsa_switch_register_notifier(struct dsa_switch *ds);
 201 void dsa_switch_unregister_notifier(struct dsa_switch *ds);
 202
 203 /* dsa2.c */
 204 extern struct list_head dsa_tree_list;
 205
 206 #endif