191da11f8SLennert Buytenhek /* 291da11f8SLennert Buytenhek * include/net/dsa.h - Driver for Distributed Switch Architecture switch chips 3e84665c9SLennert Buytenhek * Copyright (c) 2008-2009 Marvell Semiconductor 491da11f8SLennert Buytenhek * 591da11f8SLennert Buytenhek * This program is free software; you can redistribute it and/or modify 691da11f8SLennert Buytenhek * it under the terms of the GNU General Public License as published by 791da11f8SLennert Buytenhek * the Free Software Foundation; either version 2 of the License, or 891da11f8SLennert Buytenhek * (at your option) any later version. 991da11f8SLennert Buytenhek */ 1091da11f8SLennert Buytenhek 1191da11f8SLennert Buytenhek #ifndef __LINUX_NET_DSA_H 1291da11f8SLennert Buytenhek #define __LINUX_NET_DSA_H 1391da11f8SLennert Buytenhek 14ea1f51beSAxel Lin #include <linux/if_ether.h> 15c8f0b869SBen Hutchings #include <linux/list.h> 16cf50dcc2SBen Hutchings #include <linux/timer.h> 17cf50dcc2SBen Hutchings #include <linux/workqueue.h> 18fa981d9aSFlorian Fainelli #include <linux/of.h> 19ec9436baSFlorian Fainelli #include <linux/phy.h> 20ce31b31cSFlorian Fainelli #include <linux/phy_fixed.h> 21a2820543SFlorian Fainelli #include <linux/ethtool.h> 22cf50dcc2SBen Hutchings 23ac7a04c3SFlorian Fainelli enum dsa_tag_protocol { 24ac7a04c3SFlorian Fainelli DSA_TAG_PROTO_NONE = 0, 25ac7a04c3SFlorian Fainelli DSA_TAG_PROTO_DSA, 26ac7a04c3SFlorian Fainelli DSA_TAG_PROTO_TRAILER, 27ac7a04c3SFlorian Fainelli DSA_TAG_PROTO_EDSA, 28ac7a04c3SFlorian Fainelli DSA_TAG_PROTO_BRCM, 2939a7f2a4SAndrew Lunn DSA_TAG_LAST, /* MUST BE LAST */ 30ac7a04c3SFlorian Fainelli }; 315037d532SFlorian Fainelli 32e84665c9SLennert Buytenhek #define DSA_MAX_SWITCHES 4 3391da11f8SLennert Buytenhek #define DSA_MAX_PORTS 12 3491da11f8SLennert Buytenhek 35e84665c9SLennert Buytenhek struct dsa_chip_data { 36e84665c9SLennert Buytenhek /* 37e84665c9SLennert Buytenhek * How to access the switch configuration registers. 38e84665c9SLennert Buytenhek */ 39b4d2394dSAlexander Duyck struct device *host_dev; 40e84665c9SLennert Buytenhek int sw_addr; 41e84665c9SLennert Buytenhek 426793abb4SGuenter Roeck /* set to size of eeprom if supported by the switch */ 436793abb4SGuenter Roeck int eeprom_len; 446793abb4SGuenter Roeck 45fa981d9aSFlorian Fainelli /* Device tree node pointer for this specific switch chip 46fa981d9aSFlorian Fainelli * used during switch setup in case additional properties 47fa981d9aSFlorian Fainelli * and resources needs to be used 48fa981d9aSFlorian Fainelli */ 49fa981d9aSFlorian Fainelli struct device_node *of_node; 50fa981d9aSFlorian Fainelli 51e84665c9SLennert Buytenhek /* 52e84665c9SLennert Buytenhek * The names of the switch's ports. Use "cpu" to 53e84665c9SLennert Buytenhek * designate the switch port that the cpu is connected to, 54e84665c9SLennert Buytenhek * "dsa" to indicate that this port is a DSA link to 55e84665c9SLennert Buytenhek * another switch, NULL to indicate the port is unused, 56e84665c9SLennert Buytenhek * or any other string to indicate this is a physical port. 57e84665c9SLennert Buytenhek */ 58e84665c9SLennert Buytenhek char *port_names[DSA_MAX_PORTS]; 59bd47497aSFlorian Fainelli struct device_node *port_dn[DSA_MAX_PORTS]; 60e84665c9SLennert Buytenhek 61e84665c9SLennert Buytenhek /* 624a7704ffSAndrew Lunn * An array of which element [a] indicates which port on this 634a7704ffSAndrew Lunn * switch should be used to send packets to that are destined 644a7704ffSAndrew Lunn * for switch a. Can be NULL if there is only one switch chip. 65e84665c9SLennert Buytenhek */ 664a7704ffSAndrew Lunn s8 rtable[DSA_MAX_SWITCHES]; 67e84665c9SLennert Buytenhek }; 68e84665c9SLennert Buytenhek 6991da11f8SLennert Buytenhek struct dsa_platform_data { 7091da11f8SLennert Buytenhek /* 7191da11f8SLennert Buytenhek * Reference to a Linux network interface that connects 72e84665c9SLennert Buytenhek * to the root switch chip of the tree. 7391da11f8SLennert Buytenhek */ 7491da11f8SLennert Buytenhek struct device *netdev; 75769a0202SFlorian Fainelli struct net_device *of_netdev; 7691da11f8SLennert Buytenhek 7791da11f8SLennert Buytenhek /* 78e84665c9SLennert Buytenhek * Info structs describing each of the switch chips 79e84665c9SLennert Buytenhek * connected via this network interface. 8091da11f8SLennert Buytenhek */ 81e84665c9SLennert Buytenhek int nr_chips; 82e84665c9SLennert Buytenhek struct dsa_chip_data *chip; 8391da11f8SLennert Buytenhek }; 8491da11f8SLennert Buytenhek 855075314eSAlexander Duyck struct packet_type; 863e8a72d1SFlorian Fainelli 87cf50dcc2SBen Hutchings struct dsa_switch_tree { 8883c0afaeSAndrew Lunn struct list_head list; 8983c0afaeSAndrew Lunn 9083c0afaeSAndrew Lunn /* Tree identifier */ 9183c0afaeSAndrew Lunn u32 tree; 9283c0afaeSAndrew Lunn 9383c0afaeSAndrew Lunn /* Number of switches attached to this tree */ 9483c0afaeSAndrew Lunn struct kref refcount; 9583c0afaeSAndrew Lunn 9683c0afaeSAndrew Lunn /* Has this tree been applied to the hardware? */ 9783c0afaeSAndrew Lunn bool applied; 9883c0afaeSAndrew Lunn 99cf50dcc2SBen Hutchings /* 100cf50dcc2SBen Hutchings * Configuration data for the platform device that owns 101cf50dcc2SBen Hutchings * this dsa switch tree instance. 102cf50dcc2SBen Hutchings */ 103cf50dcc2SBen Hutchings struct dsa_platform_data *pd; 104cf85d08fSLennert Buytenhek 105cf50dcc2SBen Hutchings /* 106cf50dcc2SBen Hutchings * Reference to network device to use, and which tagging 107cf50dcc2SBen Hutchings * protocol to use. 108cf50dcc2SBen Hutchings */ 109cf50dcc2SBen Hutchings struct net_device *master_netdev; 1105075314eSAlexander Duyck int (*rcv)(struct sk_buff *skb, 1115075314eSAlexander Duyck struct net_device *dev, 1125075314eSAlexander Duyck struct packet_type *pt, 1135075314eSAlexander Duyck struct net_device *orig_dev); 114cf50dcc2SBen Hutchings 115cf50dcc2SBen Hutchings /* 116badf3adaSFlorian Fainelli * Original copy of the master netdev ethtool_ops 117badf3adaSFlorian Fainelli */ 118badf3adaSFlorian Fainelli struct ethtool_ops master_ethtool_ops; 119badf3adaSFlorian Fainelli 120badf3adaSFlorian Fainelli /* 121cf50dcc2SBen Hutchings * The switch and port to which the CPU is attached. 122cf50dcc2SBen Hutchings */ 123cf50dcc2SBen Hutchings s8 cpu_switch; 124cf50dcc2SBen Hutchings s8 cpu_port; 125cf50dcc2SBen Hutchings 126cf50dcc2SBen Hutchings /* 127cf50dcc2SBen Hutchings * Data for the individual switch chips. 128cf50dcc2SBen Hutchings */ 129cf50dcc2SBen Hutchings struct dsa_switch *ds[DSA_MAX_SWITCHES]; 13039a7f2a4SAndrew Lunn 13139a7f2a4SAndrew Lunn /* 13239a7f2a4SAndrew Lunn * Tagging protocol operations for adding and removing an 13339a7f2a4SAndrew Lunn * encapsulation tag. 13439a7f2a4SAndrew Lunn */ 13539a7f2a4SAndrew Lunn const struct dsa_device_ops *tag_ops; 136cf50dcc2SBen Hutchings }; 137cf50dcc2SBen Hutchings 138c8b09808SAndrew Lunn struct dsa_port { 139c8b09808SAndrew Lunn struct net_device *netdev; 140189b0d93SAndrew Lunn struct device_node *dn; 141c8b09808SAndrew Lunn }; 142c8b09808SAndrew Lunn 143c8f0b869SBen Hutchings struct dsa_switch { 144c33063d6SAndrew Lunn struct device *dev; 145c33063d6SAndrew Lunn 146c8f0b869SBen Hutchings /* 147c8f0b869SBen Hutchings * Parent switch tree, and switch index. 148c8f0b869SBen Hutchings */ 149c8f0b869SBen Hutchings struct dsa_switch_tree *dst; 150c8f0b869SBen Hutchings int index; 151c8f0b869SBen Hutchings 152c8f0b869SBen Hutchings /* 1537543a6d5SAndrew Lunn * Give the switch driver somewhere to hang its private data 1547543a6d5SAndrew Lunn * structure. 1557543a6d5SAndrew Lunn */ 1567543a6d5SAndrew Lunn void *priv; 1577543a6d5SAndrew Lunn 1587543a6d5SAndrew Lunn /* 159c8f0b869SBen Hutchings * Configuration data for this switch. 160c8f0b869SBen Hutchings */ 161ff04955cSAndrew Lunn struct dsa_chip_data *cd; 162c8f0b869SBen Hutchings 163c8f0b869SBen Hutchings /* 164c8f0b869SBen Hutchings * The used switch driver. 165c8f0b869SBen Hutchings */ 166c8f0b869SBen Hutchings struct dsa_switch_driver *drv; 167c8f0b869SBen Hutchings 16866472fc0SAndrew Lunn /* 16966472fc0SAndrew Lunn * An array of which element [a] indicates which port on this 17066472fc0SAndrew Lunn * switch should be used to send packets to that are destined 17166472fc0SAndrew Lunn * for switch a. Can be NULL if there is only one switch chip. 17266472fc0SAndrew Lunn */ 17366472fc0SAndrew Lunn s8 rtable[DSA_MAX_SWITCHES]; 17466472fc0SAndrew Lunn 17551579c3fSGuenter Roeck #ifdef CONFIG_NET_DSA_HWMON 17651579c3fSGuenter Roeck /* 17751579c3fSGuenter Roeck * Hardware monitoring information 17851579c3fSGuenter Roeck */ 17951579c3fSGuenter Roeck char hwmon_name[IFNAMSIZ + 8]; 18051579c3fSGuenter Roeck struct device *hwmon_dev; 18151579c3fSGuenter Roeck #endif 18251579c3fSGuenter Roeck 183c8f0b869SBen Hutchings /* 18483c0afaeSAndrew Lunn * The lower device this switch uses to talk to the host 18583c0afaeSAndrew Lunn */ 18683c0afaeSAndrew Lunn struct net_device *master_netdev; 18783c0afaeSAndrew Lunn 18883c0afaeSAndrew Lunn /* 189c8f0b869SBen Hutchings * Slave mii_bus and devices for the individual ports. 190c8f0b869SBen Hutchings */ 191c8f0b869SBen Hutchings u32 dsa_port_mask; 19283c0afaeSAndrew Lunn u32 cpu_port_mask; 19374c3e2a5SAndrew Lunn u32 enabled_port_mask; 1940d8bcdd3SFlorian Fainelli u32 phys_mii_mask; 195c8b09808SAndrew Lunn struct dsa_port ports[DSA_MAX_PORTS]; 196c8f0b869SBen Hutchings struct mii_bus *slave_mii_bus; 197c8f0b869SBen Hutchings }; 198c8f0b869SBen Hutchings 199c8f0b869SBen Hutchings static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p) 200c8f0b869SBen Hutchings { 201c8f0b869SBen Hutchings return !!(ds->index == ds->dst->cpu_switch && p == ds->dst->cpu_port); 202c8f0b869SBen Hutchings } 203c8f0b869SBen Hutchings 20460045cbfSAndrew Lunn static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p) 20560045cbfSAndrew Lunn { 20660045cbfSAndrew Lunn return !!((ds->dsa_port_mask) & (1 << p)); 20760045cbfSAndrew Lunn } 20860045cbfSAndrew Lunn 209d79d2107SGuenter Roeck static inline bool dsa_is_port_initialized(struct dsa_switch *ds, int p) 210d79d2107SGuenter Roeck { 211c8b09808SAndrew Lunn return ds->enabled_port_mask & (1 << p) && ds->ports[p].netdev; 212d79d2107SGuenter Roeck } 213d79d2107SGuenter Roeck 214c8f0b869SBen Hutchings static inline u8 dsa_upstream_port(struct dsa_switch *ds) 215c8f0b869SBen Hutchings { 216c8f0b869SBen Hutchings struct dsa_switch_tree *dst = ds->dst; 217c8f0b869SBen Hutchings 218c8f0b869SBen Hutchings /* 219c8f0b869SBen Hutchings * If this is the root switch (i.e. the switch that connects 220c8f0b869SBen Hutchings * to the CPU), return the cpu port number on this switch. 221c8f0b869SBen Hutchings * Else return the (DSA) port number that connects to the 222c8f0b869SBen Hutchings * switch that is one hop closer to the cpu. 223c8f0b869SBen Hutchings */ 224c8f0b869SBen Hutchings if (dst->cpu_switch == ds->index) 225c8f0b869SBen Hutchings return dst->cpu_port; 226c8f0b869SBen Hutchings else 22766472fc0SAndrew Lunn return ds->rtable[dst->cpu_switch]; 228c8f0b869SBen Hutchings } 229c8f0b869SBen Hutchings 230146a3206SVivien Didelot struct switchdev_trans; 231ea70ba98SVivien Didelot struct switchdev_obj; 232146a3206SVivien Didelot struct switchdev_obj_port_fdb; 23376e398a6SVivien Didelot struct switchdev_obj_port_vlan; 234146a3206SVivien Didelot 235c8f0b869SBen Hutchings struct dsa_switch_driver { 236c8f0b869SBen Hutchings struct list_head list; 237c8f0b869SBen Hutchings 238ac7a04c3SFlorian Fainelli enum dsa_tag_protocol tag_protocol; 239c8f0b869SBen Hutchings 240c8f0b869SBen Hutchings /* 241c8f0b869SBen Hutchings * Probing and setup. 242c8f0b869SBen Hutchings */ 2430209d144SVivien Didelot const char *(*probe)(struct device *dsa_dev, 2440209d144SVivien Didelot struct device *host_dev, int sw_addr, 2450209d144SVivien Didelot void **priv); 246c8f0b869SBen Hutchings int (*setup)(struct dsa_switch *ds); 247c8f0b869SBen Hutchings int (*set_addr)(struct dsa_switch *ds, u8 *addr); 2486819563eSFlorian Fainelli u32 (*get_phy_flags)(struct dsa_switch *ds, int port); 249c8f0b869SBen Hutchings 250c8f0b869SBen Hutchings /* 251c8f0b869SBen Hutchings * Access to the switch's PHY registers. 252c8f0b869SBen Hutchings */ 253c8f0b869SBen Hutchings int (*phy_read)(struct dsa_switch *ds, int port, int regnum); 254c8f0b869SBen Hutchings int (*phy_write)(struct dsa_switch *ds, int port, 255c8f0b869SBen Hutchings int regnum, u16 val); 256c8f0b869SBen Hutchings 257c8f0b869SBen Hutchings /* 258ec9436baSFlorian Fainelli * Link state adjustment (called from libphy) 259ec9436baSFlorian Fainelli */ 260ec9436baSFlorian Fainelli void (*adjust_link)(struct dsa_switch *ds, int port, 261ec9436baSFlorian Fainelli struct phy_device *phydev); 262ce31b31cSFlorian Fainelli void (*fixed_link_update)(struct dsa_switch *ds, int port, 263ce31b31cSFlorian Fainelli struct fixed_phy_status *st); 264ec9436baSFlorian Fainelli 265ec9436baSFlorian Fainelli /* 266c8f0b869SBen Hutchings * ethtool hardware statistics. 267c8f0b869SBen Hutchings */ 268c8f0b869SBen Hutchings void (*get_strings)(struct dsa_switch *ds, int port, uint8_t *data); 269c8f0b869SBen Hutchings void (*get_ethtool_stats)(struct dsa_switch *ds, 270c8f0b869SBen Hutchings int port, uint64_t *data); 271c8f0b869SBen Hutchings int (*get_sset_count)(struct dsa_switch *ds); 27224462549SFlorian Fainelli 27324462549SFlorian Fainelli /* 27419e57c4eSFlorian Fainelli * ethtool Wake-on-LAN 27519e57c4eSFlorian Fainelli */ 27619e57c4eSFlorian Fainelli void (*get_wol)(struct dsa_switch *ds, int port, 27719e57c4eSFlorian Fainelli struct ethtool_wolinfo *w); 27819e57c4eSFlorian Fainelli int (*set_wol)(struct dsa_switch *ds, int port, 27919e57c4eSFlorian Fainelli struct ethtool_wolinfo *w); 28019e57c4eSFlorian Fainelli 28119e57c4eSFlorian Fainelli /* 28224462549SFlorian Fainelli * Suspend and resume 28324462549SFlorian Fainelli */ 28424462549SFlorian Fainelli int (*suspend)(struct dsa_switch *ds); 28524462549SFlorian Fainelli int (*resume)(struct dsa_switch *ds); 286b2f2af21SFlorian Fainelli 287b2f2af21SFlorian Fainelli /* 288b2f2af21SFlorian Fainelli * Port enable/disable 289b2f2af21SFlorian Fainelli */ 290b2f2af21SFlorian Fainelli int (*port_enable)(struct dsa_switch *ds, int port, 291b2f2af21SFlorian Fainelli struct phy_device *phy); 292b2f2af21SFlorian Fainelli void (*port_disable)(struct dsa_switch *ds, int port, 293b2f2af21SFlorian Fainelli struct phy_device *phy); 2947905288fSFlorian Fainelli 2957905288fSFlorian Fainelli /* 2967905288fSFlorian Fainelli * EEE setttings 2977905288fSFlorian Fainelli */ 2987905288fSFlorian Fainelli int (*set_eee)(struct dsa_switch *ds, int port, 2997905288fSFlorian Fainelli struct phy_device *phydev, 3007905288fSFlorian Fainelli struct ethtool_eee *e); 3017905288fSFlorian Fainelli int (*get_eee)(struct dsa_switch *ds, int port, 3027905288fSFlorian Fainelli struct ethtool_eee *e); 30351579c3fSGuenter Roeck 30451579c3fSGuenter Roeck #ifdef CONFIG_NET_DSA_HWMON 30551579c3fSGuenter Roeck /* Hardware monitoring */ 30651579c3fSGuenter Roeck int (*get_temp)(struct dsa_switch *ds, int *temp); 30751579c3fSGuenter Roeck int (*get_temp_limit)(struct dsa_switch *ds, int *temp); 30851579c3fSGuenter Roeck int (*set_temp_limit)(struct dsa_switch *ds, int temp); 30951579c3fSGuenter Roeck int (*get_temp_alarm)(struct dsa_switch *ds, bool *alarm); 31051579c3fSGuenter Roeck #endif 3116793abb4SGuenter Roeck 3126793abb4SGuenter Roeck /* EEPROM access */ 3136793abb4SGuenter Roeck int (*get_eeprom_len)(struct dsa_switch *ds); 3146793abb4SGuenter Roeck int (*get_eeprom)(struct dsa_switch *ds, 3156793abb4SGuenter Roeck struct ethtool_eeprom *eeprom, u8 *data); 3166793abb4SGuenter Roeck int (*set_eeprom)(struct dsa_switch *ds, 3176793abb4SGuenter Roeck struct ethtool_eeprom *eeprom, u8 *data); 3183d762a0fSGuenter Roeck 3193d762a0fSGuenter Roeck /* 3203d762a0fSGuenter Roeck * Register access. 3213d762a0fSGuenter Roeck */ 3223d762a0fSGuenter Roeck int (*get_regs_len)(struct dsa_switch *ds, int port); 3233d762a0fSGuenter Roeck void (*get_regs)(struct dsa_switch *ds, int port, 3243d762a0fSGuenter Roeck struct ethtool_regs *regs, void *p); 325b73adef6SFlorian Fainelli 326b73adef6SFlorian Fainelli /* 327b73adef6SFlorian Fainelli * Bridge integration 328b73adef6SFlorian Fainelli */ 32971327a4eSVivien Didelot int (*port_bridge_join)(struct dsa_switch *ds, int port, 330a6692754SVivien Didelot struct net_device *bridge); 33116bfa702SVivien Didelot void (*port_bridge_leave)(struct dsa_switch *ds, int port); 33243c44a9fSVivien Didelot void (*port_stp_state_set)(struct dsa_switch *ds, int port, 333b73adef6SFlorian Fainelli u8 state); 3342a778e1bSVivien Didelot 3352a778e1bSVivien Didelot /* 33611149536SVivien Didelot * VLAN support 33711149536SVivien Didelot */ 338fb2dabadSVivien Didelot int (*port_vlan_filtering)(struct dsa_switch *ds, int port, 339fb2dabadSVivien Didelot bool vlan_filtering); 34076e398a6SVivien Didelot int (*port_vlan_prepare)(struct dsa_switch *ds, int port, 34176e398a6SVivien Didelot const struct switchdev_obj_port_vlan *vlan, 34276e398a6SVivien Didelot struct switchdev_trans *trans); 3434d5770b3SVivien Didelot void (*port_vlan_add)(struct dsa_switch *ds, int port, 34476e398a6SVivien Didelot const struct switchdev_obj_port_vlan *vlan, 34576e398a6SVivien Didelot struct switchdev_trans *trans); 34676e398a6SVivien Didelot int (*port_vlan_del)(struct dsa_switch *ds, int port, 34776e398a6SVivien Didelot const struct switchdev_obj_port_vlan *vlan); 34865aebfc0SVivien Didelot int (*port_vlan_dump)(struct dsa_switch *ds, int port, 34965aebfc0SVivien Didelot struct switchdev_obj_port_vlan *vlan, 35065aebfc0SVivien Didelot int (*cb)(struct switchdev_obj *obj)); 35111149536SVivien Didelot 35211149536SVivien Didelot /* 3532a778e1bSVivien Didelot * Forwarding database 3542a778e1bSVivien Didelot */ 355146a3206SVivien Didelot int (*port_fdb_prepare)(struct dsa_switch *ds, int port, 356146a3206SVivien Didelot const struct switchdev_obj_port_fdb *fdb, 357146a3206SVivien Didelot struct switchdev_trans *trans); 3588497aa61SVivien Didelot void (*port_fdb_add)(struct dsa_switch *ds, int port, 3591f36faf2SVivien Didelot const struct switchdev_obj_port_fdb *fdb, 3601f36faf2SVivien Didelot struct switchdev_trans *trans); 3612a778e1bSVivien Didelot int (*port_fdb_del)(struct dsa_switch *ds, int port, 3628057b3e7SVivien Didelot const struct switchdev_obj_port_fdb *fdb); 363ea70ba98SVivien Didelot int (*port_fdb_dump)(struct dsa_switch *ds, int port, 364ea70ba98SVivien Didelot struct switchdev_obj_port_fdb *fdb, 365ea70ba98SVivien Didelot int (*cb)(struct switchdev_obj *obj)); 366c8f0b869SBen Hutchings }; 367c8f0b869SBen Hutchings 368c8f0b869SBen Hutchings void register_switch_driver(struct dsa_switch_driver *type); 369c8f0b869SBen Hutchings void unregister_switch_driver(struct dsa_switch_driver *type); 370b4d2394dSAlexander Duyck struct mii_bus *dsa_host_dev_to_mii_bus(struct device *dev); 371c8f0b869SBen Hutchings 3727fa857edSFlorian Fainelli static inline void *ds_to_priv(struct dsa_switch *ds) 3737fa857edSFlorian Fainelli { 3747543a6d5SAndrew Lunn return ds->priv; 3757fa857edSFlorian Fainelli } 3767fa857edSFlorian Fainelli 3775aed85ceSFlorian Fainelli static inline bool dsa_uses_tagged_protocol(struct dsa_switch_tree *dst) 3785aed85ceSFlorian Fainelli { 3795075314eSAlexander Duyck return dst->rcv != NULL; 3805aed85ceSFlorian Fainelli } 38183c0afaeSAndrew Lunn 38283c0afaeSAndrew Lunn void dsa_unregister_switch(struct dsa_switch *ds); 38383c0afaeSAndrew Lunn int dsa_register_switch(struct dsa_switch *ds, struct device_node *np); 38491da11f8SLennert Buytenhek #endif 385