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 144d56a29fSRussell King #include <linux/if.h> 15ea1f51beSAxel Lin #include <linux/if_ether.h> 16c8f0b869SBen Hutchings #include <linux/list.h> 17f515f192SVivien Didelot #include <linux/notifier.h> 18cf50dcc2SBen Hutchings #include <linux/timer.h> 19cf50dcc2SBen Hutchings #include <linux/workqueue.h> 20fa981d9aSFlorian Fainelli #include <linux/of.h> 21a2820543SFlorian Fainelli #include <linux/ethtool.h> 220336369dSBrandon Streiff #include <linux/net_tstamp.h> 2311d8f3ddSFlorian Fainelli #include <linux/phy.h> 24ecfc9372SFlorian Fainelli #include <linux/platform_data/dsa.h> 2596567d5dSAndrew Lunn #include <net/devlink.h> 26f0c24ccfSVivien Didelot #include <net/switchdev.h> 27cf50dcc2SBen Hutchings 28f50f2127SFlorian Fainelli struct tc_action; 294d56a29fSRussell King struct phy_device; 304d56a29fSRussell King struct fixed_phy_status; 3111d8f3ddSFlorian Fainelli struct phylink_link_state; 32f50f2127SFlorian Fainelli 330b42f033SAndrew Lunn #define DSA_TAG_PROTO_NONE_VALUE 0 340b42f033SAndrew Lunn #define DSA_TAG_PROTO_BRCM_VALUE 1 350b42f033SAndrew Lunn #define DSA_TAG_PROTO_BRCM_PREPEND_VALUE 2 360b42f033SAndrew Lunn #define DSA_TAG_PROTO_DSA_VALUE 3 370b42f033SAndrew Lunn #define DSA_TAG_PROTO_EDSA_VALUE 4 380b42f033SAndrew Lunn #define DSA_TAG_PROTO_GSWIP_VALUE 5 390b42f033SAndrew Lunn #define DSA_TAG_PROTO_KSZ9477_VALUE 6 400b42f033SAndrew Lunn #define DSA_TAG_PROTO_KSZ9893_VALUE 7 410b42f033SAndrew Lunn #define DSA_TAG_PROTO_LAN9303_VALUE 8 420b42f033SAndrew Lunn #define DSA_TAG_PROTO_MTK_VALUE 9 430b42f033SAndrew Lunn #define DSA_TAG_PROTO_QCA_VALUE 10 440b42f033SAndrew Lunn #define DSA_TAG_PROTO_TRAILER_VALUE 11 45f9bbe447SVladimir Oltean #define DSA_TAG_PROTO_8021Q_VALUE 12 460b42f033SAndrew Lunn 47ac7a04c3SFlorian Fainelli enum dsa_tag_protocol { 480b42f033SAndrew Lunn DSA_TAG_PROTO_NONE = DSA_TAG_PROTO_NONE_VALUE, 490b42f033SAndrew Lunn DSA_TAG_PROTO_BRCM = DSA_TAG_PROTO_BRCM_VALUE, 500b42f033SAndrew Lunn DSA_TAG_PROTO_BRCM_PREPEND = DSA_TAG_PROTO_BRCM_PREPEND_VALUE, 510b42f033SAndrew Lunn DSA_TAG_PROTO_DSA = DSA_TAG_PROTO_DSA_VALUE, 520b42f033SAndrew Lunn DSA_TAG_PROTO_EDSA = DSA_TAG_PROTO_EDSA_VALUE, 530b42f033SAndrew Lunn DSA_TAG_PROTO_GSWIP = DSA_TAG_PROTO_GSWIP_VALUE, 540b42f033SAndrew Lunn DSA_TAG_PROTO_KSZ9477 = DSA_TAG_PROTO_KSZ9477_VALUE, 550b42f033SAndrew Lunn DSA_TAG_PROTO_KSZ9893 = DSA_TAG_PROTO_KSZ9893_VALUE, 560b42f033SAndrew Lunn DSA_TAG_PROTO_LAN9303 = DSA_TAG_PROTO_LAN9303_VALUE, 570b42f033SAndrew Lunn DSA_TAG_PROTO_MTK = DSA_TAG_PROTO_MTK_VALUE, 580b42f033SAndrew Lunn DSA_TAG_PROTO_QCA = DSA_TAG_PROTO_QCA_VALUE, 590b42f033SAndrew Lunn DSA_TAG_PROTO_TRAILER = DSA_TAG_PROTO_TRAILER_VALUE, 60f9bbe447SVladimir Oltean DSA_TAG_PROTO_8021Q = DSA_TAG_PROTO_8021Q_VALUE, 61ac7a04c3SFlorian Fainelli }; 625037d532SFlorian Fainelli 635075314eSAlexander Duyck struct packet_type; 6490af1059SBrandon Streiff struct dsa_switch; 653e8a72d1SFlorian Fainelli 6668277a2cSJohn Crispin struct dsa_device_ops { 6768277a2cSJohn Crispin struct sk_buff *(*xmit)(struct sk_buff *skb, struct net_device *dev); 6868277a2cSJohn Crispin struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev, 6989e49506SFlorian Westphal struct packet_type *pt); 70598a9680SJohn Crispin int (*flow_dissect)(const struct sk_buff *skb, __be16 *proto, 71598a9680SJohn Crispin int *offset); 72cc1939e4SVladimir Oltean /* Used to determine which traffic should match the DSA filter in 73cc1939e4SVladimir Oltean * eth_type_trans, and which, if any, should bypass it and be processed 74cc1939e4SVladimir Oltean * as regular on the master net device. 75cc1939e4SVladimir Oltean */ 76cc1939e4SVladimir Oltean bool (*filter)(const struct sk_buff *skb, struct net_device *dev); 77a5dd3087SAndrew Lunn unsigned int overhead; 78875138f8SAndrew Lunn const char *name; 79056eed2fSAndrew Lunn enum dsa_tag_protocol proto; 8068277a2cSJohn Crispin }; 8168277a2cSJohn Crispin 820b42f033SAndrew Lunn #define DSA_TAG_DRIVER_ALIAS "dsa_tag-" 830b42f033SAndrew Lunn #define MODULE_ALIAS_DSA_TAG_DRIVER(__proto) \ 840b42f033SAndrew Lunn MODULE_ALIAS(DSA_TAG_DRIVER_ALIAS __stringify(__proto##_VALUE)) 850b42f033SAndrew Lunn 86cf50dcc2SBen Hutchings struct dsa_switch_tree { 8783c0afaeSAndrew Lunn struct list_head list; 8883c0afaeSAndrew Lunn 89f515f192SVivien Didelot /* Notifier chain for switch-wide events */ 90f515f192SVivien Didelot struct raw_notifier_head nh; 91f515f192SVivien Didelot 9283c0afaeSAndrew Lunn /* Tree identifier */ 9349463b7fSVivien Didelot unsigned int index; 9483c0afaeSAndrew Lunn 9583c0afaeSAndrew Lunn /* Number of switches attached to this tree */ 9683c0afaeSAndrew Lunn struct kref refcount; 9783c0afaeSAndrew Lunn 9883c0afaeSAndrew Lunn /* Has this tree been applied to the hardware? */ 99ec15dd42SVivien Didelot bool setup; 10083c0afaeSAndrew Lunn 101cf50dcc2SBen Hutchings /* 102cf50dcc2SBen Hutchings * Configuration data for the platform device that owns 103cf50dcc2SBen Hutchings * this dsa switch tree instance. 104cf50dcc2SBen Hutchings */ 105cf50dcc2SBen Hutchings struct dsa_platform_data *pd; 106cf85d08fSLennert Buytenhek 107cf50dcc2SBen Hutchings /* 1088b0d3ea5SVivien Didelot * The switch port to which the CPU is attached. 109cf50dcc2SBen Hutchings */ 1108b0d3ea5SVivien Didelot struct dsa_port *cpu_dp; 111cf50dcc2SBen Hutchings 112cf50dcc2SBen Hutchings /* 113cf50dcc2SBen Hutchings * Data for the individual switch chips. 114cf50dcc2SBen Hutchings */ 115cf50dcc2SBen Hutchings struct dsa_switch *ds[DSA_MAX_SWITCHES]; 116cf50dcc2SBen Hutchings }; 117cf50dcc2SBen Hutchings 118f50f2127SFlorian Fainelli /* TC matchall action types, only mirroring for now */ 119f50f2127SFlorian Fainelli enum dsa_port_mall_action_type { 120f50f2127SFlorian Fainelli DSA_PORT_MALL_MIRROR, 121f50f2127SFlorian Fainelli }; 122f50f2127SFlorian Fainelli 123f50f2127SFlorian Fainelli /* TC mirroring entry */ 124f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry { 125f50f2127SFlorian Fainelli u8 to_local_port; 126f50f2127SFlorian Fainelli bool ingress; 127f50f2127SFlorian Fainelli }; 128f50f2127SFlorian Fainelli 129f50f2127SFlorian Fainelli /* TC matchall entry */ 130f50f2127SFlorian Fainelli struct dsa_mall_tc_entry { 131f50f2127SFlorian Fainelli struct list_head list; 132f50f2127SFlorian Fainelli unsigned long cookie; 133f50f2127SFlorian Fainelli enum dsa_port_mall_action_type type; 134f50f2127SFlorian Fainelli union { 135f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry mirror; 136f50f2127SFlorian Fainelli }; 137f50f2127SFlorian Fainelli }; 138f50f2127SFlorian Fainelli 139f50f2127SFlorian Fainelli 140c8b09808SAndrew Lunn struct dsa_port { 141f8b8b1cdSVivien Didelot /* A CPU port is physically connected to a master device. 142f8b8b1cdSVivien Didelot * A user port exposed to userspace has a slave device. 143f8b8b1cdSVivien Didelot */ 144f8b8b1cdSVivien Didelot union { 145f8b8b1cdSVivien Didelot struct net_device *master; 146f8b8b1cdSVivien Didelot struct net_device *slave; 147f8b8b1cdSVivien Didelot }; 148f8b8b1cdSVivien Didelot 14915240248SVivien Didelot /* CPU port tagging operations used by master or slave devices */ 15015240248SVivien Didelot const struct dsa_device_ops *tag_ops; 15115240248SVivien Didelot 1523e41f93bSVivien Didelot /* Copies for faster access in master receive hot path */ 1533e41f93bSVivien Didelot struct dsa_switch_tree *dst; 1543e41f93bSVivien Didelot struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev, 1553e41f93bSVivien Didelot struct packet_type *pt); 156cc1939e4SVladimir Oltean bool (*filter)(const struct sk_buff *skb, struct net_device *dev); 1573e41f93bSVivien Didelot 158057cad2cSVivien Didelot enum { 159057cad2cSVivien Didelot DSA_PORT_TYPE_UNUSED = 0, 160057cad2cSVivien Didelot DSA_PORT_TYPE_CPU, 161057cad2cSVivien Didelot DSA_PORT_TYPE_DSA, 162057cad2cSVivien Didelot DSA_PORT_TYPE_USER, 163057cad2cSVivien Didelot } type; 164057cad2cSVivien Didelot 165818be848SVivien Didelot struct dsa_switch *ds; 166818be848SVivien Didelot unsigned int index; 16771e0bbdeSFlorian Fainelli const char *name; 16824a9332aSVivien Didelot const struct dsa_port *cpu_dp; 169a2c7023fSXiaofei Shen const char *mac; 170189b0d93SAndrew Lunn struct device_node *dn; 17134a79f63SVivien Didelot unsigned int ageing_time; 17233162e9aSVladimir Oltean bool vlan_filtering; 173732f794cSVivien Didelot u8 stp_state; 174a5e9a02eSVivien Didelot struct net_device *bridge_dev; 17596567d5dSAndrew Lunn struct devlink_port devlink_port; 176aab9c406SFlorian Fainelli struct phylink *pl; 17767dbb9d4SFlorian Fainelli /* 17867dbb9d4SFlorian Fainelli * Original copy of the master netdev ethtool_ops 17967dbb9d4SFlorian Fainelli */ 18067dbb9d4SFlorian Fainelli const struct ethtool_ops *orig_ethtool_ops; 181da7b9e9bSFlorian Fainelli 182da7b9e9bSFlorian Fainelli /* 183da7b9e9bSFlorian Fainelli * Original copy of the master netdev net_device_ops 184da7b9e9bSFlorian Fainelli */ 185da7b9e9bSFlorian Fainelli const struct net_device_ops *orig_ndo_ops; 186c8b09808SAndrew Lunn }; 187c8b09808SAndrew Lunn 188c8f0b869SBen Hutchings struct dsa_switch { 189c33063d6SAndrew Lunn struct device *dev; 190c33063d6SAndrew Lunn 191c8f0b869SBen Hutchings /* 192c8f0b869SBen Hutchings * Parent switch tree, and switch index. 193c8f0b869SBen Hutchings */ 194c8f0b869SBen Hutchings struct dsa_switch_tree *dst; 19599feaafcSVivien Didelot unsigned int index; 196c8f0b869SBen Hutchings 197f515f192SVivien Didelot /* Listener for switch fabric events */ 198f515f192SVivien Didelot struct notifier_block nb; 199f515f192SVivien Didelot 200c8f0b869SBen Hutchings /* 2017543a6d5SAndrew Lunn * Give the switch driver somewhere to hang its private data 2027543a6d5SAndrew Lunn * structure. 2037543a6d5SAndrew Lunn */ 2047543a6d5SAndrew Lunn void *priv; 2057543a6d5SAndrew Lunn 2067543a6d5SAndrew Lunn /* 207c8f0b869SBen Hutchings * Configuration data for this switch. 208c8f0b869SBen Hutchings */ 209ff04955cSAndrew Lunn struct dsa_chip_data *cd; 210c8f0b869SBen Hutchings 211c8f0b869SBen Hutchings /* 2129d490b4eSVivien Didelot * The switch operations. 213c8f0b869SBen Hutchings */ 214a82f67afSFlorian Fainelli const struct dsa_switch_ops *ops; 215c8f0b869SBen Hutchings 21666472fc0SAndrew Lunn /* 21766472fc0SAndrew Lunn * An array of which element [a] indicates which port on this 21866472fc0SAndrew Lunn * switch should be used to send packets to that are destined 21966472fc0SAndrew Lunn * for switch a. Can be NULL if there is only one switch chip. 22066472fc0SAndrew Lunn */ 22166472fc0SAndrew Lunn s8 rtable[DSA_MAX_SWITCHES]; 22266472fc0SAndrew Lunn 223c8f0b869SBen Hutchings /* 224c8f0b869SBen Hutchings * Slave mii_bus and devices for the individual ports. 225c8f0b869SBen Hutchings */ 2260d8bcdd3SFlorian Fainelli u32 phys_mii_mask; 227c8f0b869SBen Hutchings struct mii_bus *slave_mii_bus; 228a0c02161SVivien Didelot 2290f3da6afSVivien Didelot /* Ageing Time limits in msecs */ 2300f3da6afSVivien Didelot unsigned int ageing_time_min; 2310f3da6afSVivien Didelot unsigned int ageing_time_max; 2320f3da6afSVivien Didelot 23396567d5dSAndrew Lunn /* devlink used to represent this switch device */ 23496567d5dSAndrew Lunn struct devlink *devlink; 23596567d5dSAndrew Lunn 23655199df6SFlorian Fainelli /* Number of switch port queues */ 23755199df6SFlorian Fainelli unsigned int num_tx_queues; 23855199df6SFlorian Fainelli 2398f5d16f6SVladimir Oltean /* Disallow bridge core from requesting different VLAN awareness 2408f5d16f6SVladimir Oltean * settings on ports if not hardware-supported 2418f5d16f6SVladimir Oltean */ 2428f5d16f6SVladimir Oltean bool vlan_filtering_is_global; 2438f5d16f6SVladimir Oltean 24414574676SVladimir Oltean /* In case vlan_filtering_is_global is set, the VLAN awareness state 24514574676SVladimir Oltean * should be retrieved from here and not from the per-port settings. 24614574676SVladimir Oltean */ 24714574676SVladimir Oltean bool vlan_filtering; 24814574676SVladimir Oltean 2490015b80aSSalvatore Mesoraca unsigned long *bitmap; 2500015b80aSSalvatore Mesoraca unsigned long _bitmap; 2510015b80aSSalvatore Mesoraca 252a0c02161SVivien Didelot /* Dynamically allocated ports, keep last */ 253a0c02161SVivien Didelot size_t num_ports; 254a0c02161SVivien Didelot struct dsa_port ports[]; 255c8f0b869SBen Hutchings }; 256c8f0b869SBen Hutchings 257c38c5a66SVivien Didelot static inline const struct dsa_port *dsa_to_port(struct dsa_switch *ds, int p) 258c38c5a66SVivien Didelot { 259c38c5a66SVivien Didelot return &ds->ports[p]; 260c38c5a66SVivien Didelot } 261c38c5a66SVivien Didelot 262bff7b688SVivien Didelot static inline bool dsa_is_unused_port(struct dsa_switch *ds, int p) 263bff7b688SVivien Didelot { 264c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_UNUSED; 265bff7b688SVivien Didelot } 266bff7b688SVivien Didelot 267c8f0b869SBen Hutchings static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p) 268c8f0b869SBen Hutchings { 269c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_CPU; 270c8f0b869SBen Hutchings } 271c8f0b869SBen Hutchings 27260045cbfSAndrew Lunn static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p) 27360045cbfSAndrew Lunn { 274c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_DSA; 27560045cbfSAndrew Lunn } 27660045cbfSAndrew Lunn 2772b3e9891SVivien Didelot static inline bool dsa_is_user_port(struct dsa_switch *ds, int p) 2786cd456f3SVivien Didelot { 279c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_USER; 2806cd456f3SVivien Didelot } 2816cd456f3SVivien Didelot 28202bc6e54SVivien Didelot static inline u32 dsa_user_ports(struct dsa_switch *ds) 28302bc6e54SVivien Didelot { 284c38c5a66SVivien Didelot u32 mask = 0; 285c38c5a66SVivien Didelot int p; 28602bc6e54SVivien Didelot 287c38c5a66SVivien Didelot for (p = 0; p < ds->num_ports; p++) 288c38c5a66SVivien Didelot if (dsa_is_user_port(ds, p)) 289c38c5a66SVivien Didelot mask |= BIT(p); 290c38c5a66SVivien Didelot 291c38c5a66SVivien Didelot return mask; 292c8652c83SVivien Didelot } 293c8652c83SVivien Didelot 2943b8fac5dSVivien Didelot /* Return the local port used to reach an arbitrary switch port */ 2953b8fac5dSVivien Didelot static inline unsigned int dsa_towards_port(struct dsa_switch *ds, int device, 2963b8fac5dSVivien Didelot int port) 2973b8fac5dSVivien Didelot { 2983b8fac5dSVivien Didelot if (device == ds->index) 2993b8fac5dSVivien Didelot return port; 3003b8fac5dSVivien Didelot else 3013b8fac5dSVivien Didelot return ds->rtable[device]; 3023b8fac5dSVivien Didelot } 3033b8fac5dSVivien Didelot 3043b8fac5dSVivien Didelot /* Return the local port used to reach the dedicated CPU port */ 30507073c79SVivien Didelot static inline unsigned int dsa_upstream_port(struct dsa_switch *ds, int port) 306c8f0b869SBen Hutchings { 30707073c79SVivien Didelot const struct dsa_port *dp = dsa_to_port(ds, port); 30807073c79SVivien Didelot const struct dsa_port *cpu_dp = dp->cpu_dp; 30907073c79SVivien Didelot 31007073c79SVivien Didelot if (!cpu_dp) 31107073c79SVivien Didelot return port; 312c8f0b869SBen Hutchings 3133b8fac5dSVivien Didelot return dsa_towards_port(ds, cpu_dp->ds->index, cpu_dp->index); 314c8f0b869SBen Hutchings } 315c8f0b869SBen Hutchings 316cf2d45f5SVladimir Oltean static inline bool dsa_port_is_vlan_filtering(const struct dsa_port *dp) 317cf2d45f5SVladimir Oltean { 318cf2d45f5SVladimir Oltean const struct dsa_switch *ds = dp->ds; 319cf2d45f5SVladimir Oltean 320cf2d45f5SVladimir Oltean if (ds->vlan_filtering_is_global) 321cf2d45f5SVladimir Oltean return ds->vlan_filtering; 322cf2d45f5SVladimir Oltean else 323cf2d45f5SVladimir Oltean return dp->vlan_filtering; 324cf2d45f5SVladimir Oltean } 325cf2d45f5SVladimir Oltean 3262bedde1aSArkadi Sharshevsky typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid, 3272bedde1aSArkadi Sharshevsky bool is_static, void *data); 3289d490b4eSVivien Didelot struct dsa_switch_ops { 3295ed4e3ebSFlorian Fainelli enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds, 3305ed4e3ebSFlorian Fainelli int port); 3317b314362SAndrew Lunn 332c8f0b869SBen Hutchings int (*setup)(struct dsa_switch *ds); 3336819563eSFlorian Fainelli u32 (*get_phy_flags)(struct dsa_switch *ds, int port); 334c8f0b869SBen Hutchings 335c8f0b869SBen Hutchings /* 336c8f0b869SBen Hutchings * Access to the switch's PHY registers. 337c8f0b869SBen Hutchings */ 338c8f0b869SBen Hutchings int (*phy_read)(struct dsa_switch *ds, int port, int regnum); 339c8f0b869SBen Hutchings int (*phy_write)(struct dsa_switch *ds, int port, 340c8f0b869SBen Hutchings int regnum, u16 val); 341c8f0b869SBen Hutchings 342c8f0b869SBen Hutchings /* 343ec9436baSFlorian Fainelli * Link state adjustment (called from libphy) 344ec9436baSFlorian Fainelli */ 345ec9436baSFlorian Fainelli void (*adjust_link)(struct dsa_switch *ds, int port, 346ec9436baSFlorian Fainelli struct phy_device *phydev); 347ce31b31cSFlorian Fainelli void (*fixed_link_update)(struct dsa_switch *ds, int port, 348ce31b31cSFlorian Fainelli struct fixed_phy_status *st); 349ec9436baSFlorian Fainelli 350ec9436baSFlorian Fainelli /* 35111d8f3ddSFlorian Fainelli * PHYLINK integration 35211d8f3ddSFlorian Fainelli */ 35311d8f3ddSFlorian Fainelli void (*phylink_validate)(struct dsa_switch *ds, int port, 35411d8f3ddSFlorian Fainelli unsigned long *supported, 35511d8f3ddSFlorian Fainelli struct phylink_link_state *state); 35611d8f3ddSFlorian Fainelli int (*phylink_mac_link_state)(struct dsa_switch *ds, int port, 35711d8f3ddSFlorian Fainelli struct phylink_link_state *state); 35811d8f3ddSFlorian Fainelli void (*phylink_mac_config)(struct dsa_switch *ds, int port, 35911d8f3ddSFlorian Fainelli unsigned int mode, 36011d8f3ddSFlorian Fainelli const struct phylink_link_state *state); 36111d8f3ddSFlorian Fainelli void (*phylink_mac_an_restart)(struct dsa_switch *ds, int port); 36211d8f3ddSFlorian Fainelli void (*phylink_mac_link_down)(struct dsa_switch *ds, int port, 36311d8f3ddSFlorian Fainelli unsigned int mode, 36411d8f3ddSFlorian Fainelli phy_interface_t interface); 36511d8f3ddSFlorian Fainelli void (*phylink_mac_link_up)(struct dsa_switch *ds, int port, 36611d8f3ddSFlorian Fainelli unsigned int mode, 36711d8f3ddSFlorian Fainelli phy_interface_t interface, 36811d8f3ddSFlorian Fainelli struct phy_device *phydev); 36911d8f3ddSFlorian Fainelli void (*phylink_fixed_state)(struct dsa_switch *ds, int port, 37011d8f3ddSFlorian Fainelli struct phylink_link_state *state); 37111d8f3ddSFlorian Fainelli /* 372c8f0b869SBen Hutchings * ethtool hardware statistics. 373c8f0b869SBen Hutchings */ 37489f09048SFlorian Fainelli void (*get_strings)(struct dsa_switch *ds, int port, 37589f09048SFlorian Fainelli u32 stringset, uint8_t *data); 376c8f0b869SBen Hutchings void (*get_ethtool_stats)(struct dsa_switch *ds, 377c8f0b869SBen Hutchings int port, uint64_t *data); 37889f09048SFlorian Fainelli int (*get_sset_count)(struct dsa_switch *ds, int port, int sset); 379cf963573SFlorian Fainelli void (*get_ethtool_phy_stats)(struct dsa_switch *ds, 380cf963573SFlorian Fainelli int port, uint64_t *data); 38124462549SFlorian Fainelli 38224462549SFlorian Fainelli /* 38319e57c4eSFlorian Fainelli * ethtool Wake-on-LAN 38419e57c4eSFlorian Fainelli */ 38519e57c4eSFlorian Fainelli void (*get_wol)(struct dsa_switch *ds, int port, 38619e57c4eSFlorian Fainelli struct ethtool_wolinfo *w); 38719e57c4eSFlorian Fainelli int (*set_wol)(struct dsa_switch *ds, int port, 38819e57c4eSFlorian Fainelli struct ethtool_wolinfo *w); 38919e57c4eSFlorian Fainelli 39019e57c4eSFlorian Fainelli /* 3910336369dSBrandon Streiff * ethtool timestamp info 3920336369dSBrandon Streiff */ 3930336369dSBrandon Streiff int (*get_ts_info)(struct dsa_switch *ds, int port, 3940336369dSBrandon Streiff struct ethtool_ts_info *ts); 3950336369dSBrandon Streiff 3960336369dSBrandon Streiff /* 39724462549SFlorian Fainelli * Suspend and resume 39824462549SFlorian Fainelli */ 39924462549SFlorian Fainelli int (*suspend)(struct dsa_switch *ds); 40024462549SFlorian Fainelli int (*resume)(struct dsa_switch *ds); 401b2f2af21SFlorian Fainelli 402b2f2af21SFlorian Fainelli /* 403b2f2af21SFlorian Fainelli * Port enable/disable 404b2f2af21SFlorian Fainelli */ 405b2f2af21SFlorian Fainelli int (*port_enable)(struct dsa_switch *ds, int port, 406b2f2af21SFlorian Fainelli struct phy_device *phy); 40775104db0SAndrew Lunn void (*port_disable)(struct dsa_switch *ds, int port); 4087905288fSFlorian Fainelli 4097905288fSFlorian Fainelli /* 41008f50061SVivien Didelot * Port's MAC EEE settings 4117905288fSFlorian Fainelli */ 41208f50061SVivien Didelot int (*set_mac_eee)(struct dsa_switch *ds, int port, 4137905288fSFlorian Fainelli struct ethtool_eee *e); 41408f50061SVivien Didelot int (*get_mac_eee)(struct dsa_switch *ds, int port, 4157905288fSFlorian Fainelli struct ethtool_eee *e); 41651579c3fSGuenter Roeck 4176793abb4SGuenter Roeck /* EEPROM access */ 4186793abb4SGuenter Roeck int (*get_eeprom_len)(struct dsa_switch *ds); 4196793abb4SGuenter Roeck int (*get_eeprom)(struct dsa_switch *ds, 4206793abb4SGuenter Roeck struct ethtool_eeprom *eeprom, u8 *data); 4216793abb4SGuenter Roeck int (*set_eeprom)(struct dsa_switch *ds, 4226793abb4SGuenter Roeck struct ethtool_eeprom *eeprom, u8 *data); 4233d762a0fSGuenter Roeck 4243d762a0fSGuenter Roeck /* 4253d762a0fSGuenter Roeck * Register access. 4263d762a0fSGuenter Roeck */ 4273d762a0fSGuenter Roeck int (*get_regs_len)(struct dsa_switch *ds, int port); 4283d762a0fSGuenter Roeck void (*get_regs)(struct dsa_switch *ds, int port, 4293d762a0fSGuenter Roeck struct ethtool_regs *regs, void *p); 430b73adef6SFlorian Fainelli 431b73adef6SFlorian Fainelli /* 432b73adef6SFlorian Fainelli * Bridge integration 433b73adef6SFlorian Fainelli */ 43434a79f63SVivien Didelot int (*set_ageing_time)(struct dsa_switch *ds, unsigned int msecs); 43571327a4eSVivien Didelot int (*port_bridge_join)(struct dsa_switch *ds, int port, 436a6692754SVivien Didelot struct net_device *bridge); 437f123f2fbSVivien Didelot void (*port_bridge_leave)(struct dsa_switch *ds, int port, 438f123f2fbSVivien Didelot struct net_device *bridge); 43943c44a9fSVivien Didelot void (*port_stp_state_set)(struct dsa_switch *ds, int port, 440b73adef6SFlorian Fainelli u8 state); 441732f794cSVivien Didelot void (*port_fast_age)(struct dsa_switch *ds, int port); 44257652796SRussell King int (*port_egress_floods)(struct dsa_switch *ds, int port, 44357652796SRussell King bool unicast, bool multicast); 4442a778e1bSVivien Didelot 4452a778e1bSVivien Didelot /* 44611149536SVivien Didelot * VLAN support 44711149536SVivien Didelot */ 448fb2dabadSVivien Didelot int (*port_vlan_filtering)(struct dsa_switch *ds, int port, 449fb2dabadSVivien Didelot bool vlan_filtering); 45076e398a6SVivien Didelot int (*port_vlan_prepare)(struct dsa_switch *ds, int port, 45180e02360SVivien Didelot const struct switchdev_obj_port_vlan *vlan); 4524d5770b3SVivien Didelot void (*port_vlan_add)(struct dsa_switch *ds, int port, 45380e02360SVivien Didelot const struct switchdev_obj_port_vlan *vlan); 45476e398a6SVivien Didelot int (*port_vlan_del)(struct dsa_switch *ds, int port, 45576e398a6SVivien Didelot const struct switchdev_obj_port_vlan *vlan); 45611149536SVivien Didelot /* 4572a778e1bSVivien Didelot * Forwarding database 4582a778e1bSVivien Didelot */ 4591b6dd556SArkadi Sharshevsky int (*port_fdb_add)(struct dsa_switch *ds, int port, 4606c2c1dcbSArkadi Sharshevsky const unsigned char *addr, u16 vid); 4612a778e1bSVivien Didelot int (*port_fdb_del)(struct dsa_switch *ds, int port, 4626c2c1dcbSArkadi Sharshevsky const unsigned char *addr, u16 vid); 463ea70ba98SVivien Didelot int (*port_fdb_dump)(struct dsa_switch *ds, int port, 4642bedde1aSArkadi Sharshevsky dsa_fdb_dump_cb_t *cb, void *data); 4658df30255SVivien Didelot 4668df30255SVivien Didelot /* 4678df30255SVivien Didelot * Multicast database 4688df30255SVivien Didelot */ 4698df30255SVivien Didelot int (*port_mdb_prepare)(struct dsa_switch *ds, int port, 4703709aadcSVivien Didelot const struct switchdev_obj_port_mdb *mdb); 4718df30255SVivien Didelot void (*port_mdb_add)(struct dsa_switch *ds, int port, 4723709aadcSVivien Didelot const struct switchdev_obj_port_mdb *mdb); 4738df30255SVivien Didelot int (*port_mdb_del)(struct dsa_switch *ds, int port, 4748df30255SVivien Didelot const struct switchdev_obj_port_mdb *mdb); 475bf9f2648SFlorian Fainelli /* 476bf9f2648SFlorian Fainelli * RXNFC 477bf9f2648SFlorian Fainelli */ 478bf9f2648SFlorian Fainelli int (*get_rxnfc)(struct dsa_switch *ds, int port, 479bf9f2648SFlorian Fainelli struct ethtool_rxnfc *nfc, u32 *rule_locs); 480bf9f2648SFlorian Fainelli int (*set_rxnfc)(struct dsa_switch *ds, int port, 481bf9f2648SFlorian Fainelli struct ethtool_rxnfc *nfc); 482f50f2127SFlorian Fainelli 483f50f2127SFlorian Fainelli /* 484f50f2127SFlorian Fainelli * TC integration 485f50f2127SFlorian Fainelli */ 486f50f2127SFlorian Fainelli int (*port_mirror_add)(struct dsa_switch *ds, int port, 487f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry *mirror, 488f50f2127SFlorian Fainelli bool ingress); 489f50f2127SFlorian Fainelli void (*port_mirror_del)(struct dsa_switch *ds, int port, 490f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry *mirror); 49140ef2c93SVivien Didelot 49240ef2c93SVivien Didelot /* 49340ef2c93SVivien Didelot * Cross-chip operations 49440ef2c93SVivien Didelot */ 49540ef2c93SVivien Didelot int (*crosschip_bridge_join)(struct dsa_switch *ds, int sw_index, 49640ef2c93SVivien Didelot int port, struct net_device *br); 49740ef2c93SVivien Didelot void (*crosschip_bridge_leave)(struct dsa_switch *ds, int sw_index, 49840ef2c93SVivien Didelot int port, struct net_device *br); 4990336369dSBrandon Streiff 5000336369dSBrandon Streiff /* 5010336369dSBrandon Streiff * PTP functionality 5020336369dSBrandon Streiff */ 5030336369dSBrandon Streiff int (*port_hwtstamp_get)(struct dsa_switch *ds, int port, 5040336369dSBrandon Streiff struct ifreq *ifr); 5050336369dSBrandon Streiff int (*port_hwtstamp_set)(struct dsa_switch *ds, int port, 5060336369dSBrandon Streiff struct ifreq *ifr); 50790af1059SBrandon Streiff bool (*port_txtstamp)(struct dsa_switch *ds, int port, 50890af1059SBrandon Streiff struct sk_buff *clone, unsigned int type); 50990af1059SBrandon Streiff bool (*port_rxtstamp)(struct dsa_switch *ds, int port, 51090af1059SBrandon Streiff struct sk_buff *skb, unsigned int type); 511c8f0b869SBen Hutchings }; 512c8f0b869SBen Hutchings 513ab3d408dSFlorian Fainelli struct dsa_switch_driver { 514ab3d408dSFlorian Fainelli struct list_head list; 515a82f67afSFlorian Fainelli const struct dsa_switch_ops *ops; 516ab3d408dSFlorian Fainelli }; 517ab3d408dSFlorian Fainelli 51814b89f36SFlorian Fainelli struct net_device *dsa_dev_to_net_device(struct device *dev); 519c8f0b869SBen Hutchings 52073a7ece8SVivien Didelot /* Keep inline for faster access in hot path */ 521c6e970a0SAndrew Lunn static inline bool netdev_uses_dsa(struct net_device *dev) 522c6e970a0SAndrew Lunn { 523c6e970a0SAndrew Lunn #if IS_ENABLED(CONFIG_NET_DSA) 524717ffbfbSVivien Didelot return dev->dsa_ptr && dev->dsa_ptr->rcv; 525c6e970a0SAndrew Lunn #endif 526c6e970a0SAndrew Lunn return false; 527c6e970a0SAndrew Lunn } 528c6e970a0SAndrew Lunn 529cc1939e4SVladimir Oltean static inline bool dsa_can_decode(const struct sk_buff *skb, 530cc1939e4SVladimir Oltean struct net_device *dev) 531cc1939e4SVladimir Oltean { 532cc1939e4SVladimir Oltean #if IS_ENABLED(CONFIG_NET_DSA) 533cc1939e4SVladimir Oltean return !dev->dsa_ptr->filter || dev->dsa_ptr->filter(skb, dev); 534cc1939e4SVladimir Oltean #endif 535cc1939e4SVladimir Oltean return false; 536cc1939e4SVladimir Oltean } 537cc1939e4SVladimir Oltean 538a0c02161SVivien Didelot struct dsa_switch *dsa_switch_alloc(struct device *dev, size_t n); 53983c0afaeSAndrew Lunn void dsa_unregister_switch(struct dsa_switch *ds); 54023c9ee49SVivien Didelot int dsa_register_switch(struct dsa_switch *ds); 541ea825e70SFlorian Fainelli #ifdef CONFIG_PM_SLEEP 542ea825e70SFlorian Fainelli int dsa_switch_suspend(struct dsa_switch *ds); 543ea825e70SFlorian Fainelli int dsa_switch_resume(struct dsa_switch *ds); 544ea825e70SFlorian Fainelli #else 545ea825e70SFlorian Fainelli static inline int dsa_switch_suspend(struct dsa_switch *ds) 546ea825e70SFlorian Fainelli { 547ea825e70SFlorian Fainelli return 0; 548ea825e70SFlorian Fainelli } 549ea825e70SFlorian Fainelli static inline int dsa_switch_resume(struct dsa_switch *ds) 550ea825e70SFlorian Fainelli { 551ea825e70SFlorian Fainelli return 0; 552ea825e70SFlorian Fainelli } 553ea825e70SFlorian Fainelli #endif /* CONFIG_PM_SLEEP */ 554ea825e70SFlorian Fainelli 55560724d4bSFlorian Fainelli enum dsa_notifier_type { 55660724d4bSFlorian Fainelli DSA_PORT_REGISTER, 55760724d4bSFlorian Fainelli DSA_PORT_UNREGISTER, 55860724d4bSFlorian Fainelli }; 55960724d4bSFlorian Fainelli 56060724d4bSFlorian Fainelli struct dsa_notifier_info { 56160724d4bSFlorian Fainelli struct net_device *dev; 56260724d4bSFlorian Fainelli }; 56360724d4bSFlorian Fainelli 56460724d4bSFlorian Fainelli struct dsa_notifier_register_info { 56560724d4bSFlorian Fainelli struct dsa_notifier_info info; /* must be first */ 56660724d4bSFlorian Fainelli struct net_device *master; 56760724d4bSFlorian Fainelli unsigned int port_number; 56860724d4bSFlorian Fainelli unsigned int switch_number; 56960724d4bSFlorian Fainelli }; 57060724d4bSFlorian Fainelli 57160724d4bSFlorian Fainelli static inline struct net_device * 57260724d4bSFlorian Fainelli dsa_notifier_info_to_dev(const struct dsa_notifier_info *info) 57360724d4bSFlorian Fainelli { 57460724d4bSFlorian Fainelli return info->dev; 57560724d4bSFlorian Fainelli } 57660724d4bSFlorian Fainelli 57760724d4bSFlorian Fainelli #if IS_ENABLED(CONFIG_NET_DSA) 57860724d4bSFlorian Fainelli int register_dsa_notifier(struct notifier_block *nb); 57960724d4bSFlorian Fainelli int unregister_dsa_notifier(struct notifier_block *nb); 58060724d4bSFlorian Fainelli int call_dsa_notifiers(unsigned long val, struct net_device *dev, 58160724d4bSFlorian Fainelli struct dsa_notifier_info *info); 58260724d4bSFlorian Fainelli #else 58360724d4bSFlorian Fainelli static inline int register_dsa_notifier(struct notifier_block *nb) 58460724d4bSFlorian Fainelli { 58560724d4bSFlorian Fainelli return 0; 58660724d4bSFlorian Fainelli } 58760724d4bSFlorian Fainelli 58860724d4bSFlorian Fainelli static inline int unregister_dsa_notifier(struct notifier_block *nb) 58960724d4bSFlorian Fainelli { 59060724d4bSFlorian Fainelli return 0; 59160724d4bSFlorian Fainelli } 59260724d4bSFlorian Fainelli 59360724d4bSFlorian Fainelli static inline int call_dsa_notifiers(unsigned long val, struct net_device *dev, 59460724d4bSFlorian Fainelli struct dsa_notifier_info *info) 59560724d4bSFlorian Fainelli { 59660724d4bSFlorian Fainelli return NOTIFY_DONE; 59760724d4bSFlorian Fainelli } 59860724d4bSFlorian Fainelli #endif 59960724d4bSFlorian Fainelli 6000a5f14ceSFlorian Fainelli /* Broadcom tag specific helpers to insert and extract queue/port number */ 6010a5f14ceSFlorian Fainelli #define BRCM_TAG_SET_PORT_QUEUE(p, q) ((p) << 8 | q) 6020a5f14ceSFlorian Fainelli #define BRCM_TAG_GET_PORT(v) ((v) >> 8) 6030a5f14ceSFlorian Fainelli #define BRCM_TAG_GET_QUEUE(v) ((v) & 0xff) 6040a5f14ceSFlorian Fainelli 605cf963573SFlorian Fainelli 606cf963573SFlorian Fainelli int dsa_port_get_phy_strings(struct dsa_port *dp, uint8_t *data); 607cf963573SFlorian Fainelli int dsa_port_get_ethtool_phy_stats(struct dsa_port *dp, uint64_t *data); 608cf963573SFlorian Fainelli int dsa_port_get_phy_sset_count(struct dsa_port *dp); 60911d8f3ddSFlorian Fainelli void dsa_port_phylink_mac_change(struct dsa_switch *ds, int port, bool up); 610cf963573SFlorian Fainelli 611d3b8c049SAndrew Lunn struct dsa_tag_driver { 612d3b8c049SAndrew Lunn const struct dsa_device_ops *ops; 613d3b8c049SAndrew Lunn struct list_head list; 614d3b8c049SAndrew Lunn struct module *owner; 615d3b8c049SAndrew Lunn }; 616d3b8c049SAndrew Lunn 617d3b8c049SAndrew Lunn void dsa_tag_drivers_register(struct dsa_tag_driver *dsa_tag_driver_array[], 618d3b8c049SAndrew Lunn unsigned int count, 619d3b8c049SAndrew Lunn struct module *owner); 620d3b8c049SAndrew Lunn void dsa_tag_drivers_unregister(struct dsa_tag_driver *dsa_tag_driver_array[], 621d3b8c049SAndrew Lunn unsigned int count); 622d3b8c049SAndrew Lunn 623d3b8c049SAndrew Lunn #define dsa_tag_driver_module_drivers(__dsa_tag_drivers_array, __count) \ 624d3b8c049SAndrew Lunn static int __init dsa_tag_driver_module_init(void) \ 625d3b8c049SAndrew Lunn { \ 626d3b8c049SAndrew Lunn dsa_tag_drivers_register(__dsa_tag_drivers_array, __count, \ 627d3b8c049SAndrew Lunn THIS_MODULE); \ 628d3b8c049SAndrew Lunn return 0; \ 629d3b8c049SAndrew Lunn } \ 630d3b8c049SAndrew Lunn module_init(dsa_tag_driver_module_init); \ 631d3b8c049SAndrew Lunn \ 632d3b8c049SAndrew Lunn static void __exit dsa_tag_driver_module_exit(void) \ 633d3b8c049SAndrew Lunn { \ 634d3b8c049SAndrew Lunn dsa_tag_drivers_unregister(__dsa_tag_drivers_array, __count); \ 635d3b8c049SAndrew Lunn } \ 636d3b8c049SAndrew Lunn module_exit(dsa_tag_driver_module_exit) 637d3b8c049SAndrew Lunn 638d3b8c049SAndrew Lunn /** 639d3b8c049SAndrew Lunn * module_dsa_tag_drivers() - Helper macro for registering DSA tag 640d3b8c049SAndrew Lunn * drivers 641d3b8c049SAndrew Lunn * @__ops_array: Array of tag driver strucutres 642d3b8c049SAndrew Lunn * 643d3b8c049SAndrew Lunn * Helper macro for DSA tag drivers which do not do anything special 644d3b8c049SAndrew Lunn * in module init/exit. Each module may only use this macro once, and 645d3b8c049SAndrew Lunn * calling it replaces module_init() and module_exit(). 646d3b8c049SAndrew Lunn */ 647d3b8c049SAndrew Lunn #define module_dsa_tag_drivers(__ops_array) \ 648d3b8c049SAndrew Lunn dsa_tag_driver_module_drivers(__ops_array, ARRAY_SIZE(__ops_array)) 649d3b8c049SAndrew Lunn 650d3b8c049SAndrew Lunn #define DSA_TAG_DRIVER_NAME(__ops) dsa_tag_driver ## _ ## __ops 651d3b8c049SAndrew Lunn 652d3b8c049SAndrew Lunn /* Create a static structure we can build a linked list of dsa_tag 653d3b8c049SAndrew Lunn * drivers 654d3b8c049SAndrew Lunn */ 655d3b8c049SAndrew Lunn #define DSA_TAG_DRIVER(__ops) \ 656d3b8c049SAndrew Lunn static struct dsa_tag_driver DSA_TAG_DRIVER_NAME(__ops) = { \ 657d3b8c049SAndrew Lunn .ops = &__ops, \ 658d3b8c049SAndrew Lunn } 659d3b8c049SAndrew Lunn 660d3b8c049SAndrew Lunn /** 661d3b8c049SAndrew Lunn * module_dsa_tag_driver() - Helper macro for registering a single DSA tag 662d3b8c049SAndrew Lunn * driver 663d3b8c049SAndrew Lunn * @__ops: Single tag driver structures 664d3b8c049SAndrew Lunn * 665d3b8c049SAndrew Lunn * Helper macro for DSA tag drivers which do not do anything special 666d3b8c049SAndrew Lunn * in module init/exit. Each module may only use this macro once, and 667d3b8c049SAndrew Lunn * calling it replaces module_init() and module_exit(). 668d3b8c049SAndrew Lunn */ 669d3b8c049SAndrew Lunn #define module_dsa_tag_driver(__ops) \ 670d3b8c049SAndrew Lunn DSA_TAG_DRIVER(__ops); \ 671d3b8c049SAndrew Lunn \ 672d3b8c049SAndrew Lunn static struct dsa_tag_driver *dsa_tag_driver_array[] = { \ 673d3b8c049SAndrew Lunn &DSA_TAG_DRIVER_NAME(__ops) \ 674d3b8c049SAndrew Lunn }; \ 675d3b8c049SAndrew Lunn module_dsa_tag_drivers(dsa_tag_driver_array) 67691da11f8SLennert Buytenhek #endif 677d3b8c049SAndrew Lunn 678