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 450b42f033SAndrew Lunn 46ac7a04c3SFlorian Fainelli enum dsa_tag_protocol { 470b42f033SAndrew Lunn DSA_TAG_PROTO_NONE = DSA_TAG_PROTO_NONE_VALUE, 480b42f033SAndrew Lunn DSA_TAG_PROTO_BRCM = DSA_TAG_PROTO_BRCM_VALUE, 490b42f033SAndrew Lunn DSA_TAG_PROTO_BRCM_PREPEND = DSA_TAG_PROTO_BRCM_PREPEND_VALUE, 500b42f033SAndrew Lunn DSA_TAG_PROTO_DSA = DSA_TAG_PROTO_DSA_VALUE, 510b42f033SAndrew Lunn DSA_TAG_PROTO_EDSA = DSA_TAG_PROTO_EDSA_VALUE, 520b42f033SAndrew Lunn DSA_TAG_PROTO_GSWIP = DSA_TAG_PROTO_GSWIP_VALUE, 530b42f033SAndrew Lunn DSA_TAG_PROTO_KSZ9477 = DSA_TAG_PROTO_KSZ9477_VALUE, 540b42f033SAndrew Lunn DSA_TAG_PROTO_KSZ9893 = DSA_TAG_PROTO_KSZ9893_VALUE, 550b42f033SAndrew Lunn DSA_TAG_PROTO_LAN9303 = DSA_TAG_PROTO_LAN9303_VALUE, 560b42f033SAndrew Lunn DSA_TAG_PROTO_MTK = DSA_TAG_PROTO_MTK_VALUE, 570b42f033SAndrew Lunn DSA_TAG_PROTO_QCA = DSA_TAG_PROTO_QCA_VALUE, 580b42f033SAndrew Lunn DSA_TAG_PROTO_TRAILER = DSA_TAG_PROTO_TRAILER_VALUE, 59ac7a04c3SFlorian Fainelli }; 605037d532SFlorian Fainelli 615075314eSAlexander Duyck struct packet_type; 6290af1059SBrandon Streiff struct dsa_switch; 633e8a72d1SFlorian Fainelli 6468277a2cSJohn Crispin struct dsa_device_ops { 6568277a2cSJohn Crispin struct sk_buff *(*xmit)(struct sk_buff *skb, struct net_device *dev); 6668277a2cSJohn Crispin struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev, 6789e49506SFlorian Westphal struct packet_type *pt); 68598a9680SJohn Crispin int (*flow_dissect)(const struct sk_buff *skb, __be16 *proto, 69598a9680SJohn Crispin int *offset); 70a5dd3087SAndrew Lunn unsigned int overhead; 71875138f8SAndrew Lunn const char *name; 72056eed2fSAndrew Lunn enum dsa_tag_protocol proto; 7368277a2cSJohn Crispin }; 7468277a2cSJohn Crispin 750b42f033SAndrew Lunn #define DSA_TAG_DRIVER_ALIAS "dsa_tag-" 760b42f033SAndrew Lunn #define MODULE_ALIAS_DSA_TAG_DRIVER(__proto) \ 770b42f033SAndrew Lunn MODULE_ALIAS(DSA_TAG_DRIVER_ALIAS __stringify(__proto##_VALUE)) 780b42f033SAndrew Lunn 79cf50dcc2SBen Hutchings struct dsa_switch_tree { 8083c0afaeSAndrew Lunn struct list_head list; 8183c0afaeSAndrew Lunn 82f515f192SVivien Didelot /* Notifier chain for switch-wide events */ 83f515f192SVivien Didelot struct raw_notifier_head nh; 84f515f192SVivien Didelot 8583c0afaeSAndrew Lunn /* Tree identifier */ 8649463b7fSVivien Didelot unsigned int index; 8783c0afaeSAndrew Lunn 8883c0afaeSAndrew Lunn /* Number of switches attached to this tree */ 8983c0afaeSAndrew Lunn struct kref refcount; 9083c0afaeSAndrew Lunn 9183c0afaeSAndrew Lunn /* Has this tree been applied to the hardware? */ 92ec15dd42SVivien Didelot bool setup; 9383c0afaeSAndrew Lunn 94cf50dcc2SBen Hutchings /* 95cf50dcc2SBen Hutchings * Configuration data for the platform device that owns 96cf50dcc2SBen Hutchings * this dsa switch tree instance. 97cf50dcc2SBen Hutchings */ 98cf50dcc2SBen Hutchings struct dsa_platform_data *pd; 99cf85d08fSLennert Buytenhek 100cf50dcc2SBen Hutchings /* 1018b0d3ea5SVivien Didelot * The switch port to which the CPU is attached. 102cf50dcc2SBen Hutchings */ 1038b0d3ea5SVivien Didelot struct dsa_port *cpu_dp; 104cf50dcc2SBen Hutchings 105cf50dcc2SBen Hutchings /* 106cf50dcc2SBen Hutchings * Data for the individual switch chips. 107cf50dcc2SBen Hutchings */ 108cf50dcc2SBen Hutchings struct dsa_switch *ds[DSA_MAX_SWITCHES]; 109cf50dcc2SBen Hutchings }; 110cf50dcc2SBen Hutchings 111f50f2127SFlorian Fainelli /* TC matchall action types, only mirroring for now */ 112f50f2127SFlorian Fainelli enum dsa_port_mall_action_type { 113f50f2127SFlorian Fainelli DSA_PORT_MALL_MIRROR, 114f50f2127SFlorian Fainelli }; 115f50f2127SFlorian Fainelli 116f50f2127SFlorian Fainelli /* TC mirroring entry */ 117f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry { 118f50f2127SFlorian Fainelli u8 to_local_port; 119f50f2127SFlorian Fainelli bool ingress; 120f50f2127SFlorian Fainelli }; 121f50f2127SFlorian Fainelli 122f50f2127SFlorian Fainelli /* TC matchall entry */ 123f50f2127SFlorian Fainelli struct dsa_mall_tc_entry { 124f50f2127SFlorian Fainelli struct list_head list; 125f50f2127SFlorian Fainelli unsigned long cookie; 126f50f2127SFlorian Fainelli enum dsa_port_mall_action_type type; 127f50f2127SFlorian Fainelli union { 128f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry mirror; 129f50f2127SFlorian Fainelli }; 130f50f2127SFlorian Fainelli }; 131f50f2127SFlorian Fainelli 132f50f2127SFlorian Fainelli 133c8b09808SAndrew Lunn struct dsa_port { 134f8b8b1cdSVivien Didelot /* A CPU port is physically connected to a master device. 135f8b8b1cdSVivien Didelot * A user port exposed to userspace has a slave device. 136f8b8b1cdSVivien Didelot */ 137f8b8b1cdSVivien Didelot union { 138f8b8b1cdSVivien Didelot struct net_device *master; 139f8b8b1cdSVivien Didelot struct net_device *slave; 140f8b8b1cdSVivien Didelot }; 141f8b8b1cdSVivien Didelot 14215240248SVivien Didelot /* CPU port tagging operations used by master or slave devices */ 14315240248SVivien Didelot const struct dsa_device_ops *tag_ops; 14415240248SVivien Didelot 1453e41f93bSVivien Didelot /* Copies for faster access in master receive hot path */ 1463e41f93bSVivien Didelot struct dsa_switch_tree *dst; 1473e41f93bSVivien Didelot struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev, 1483e41f93bSVivien Didelot struct packet_type *pt); 1493e41f93bSVivien Didelot 150057cad2cSVivien Didelot enum { 151057cad2cSVivien Didelot DSA_PORT_TYPE_UNUSED = 0, 152057cad2cSVivien Didelot DSA_PORT_TYPE_CPU, 153057cad2cSVivien Didelot DSA_PORT_TYPE_DSA, 154057cad2cSVivien Didelot DSA_PORT_TYPE_USER, 155057cad2cSVivien Didelot } type; 156057cad2cSVivien Didelot 157818be848SVivien Didelot struct dsa_switch *ds; 158818be848SVivien Didelot unsigned int index; 15971e0bbdeSFlorian Fainelli const char *name; 16024a9332aSVivien Didelot const struct dsa_port *cpu_dp; 161a2c7023fSXiaofei Shen const char *mac; 162189b0d93SAndrew Lunn struct device_node *dn; 16334a79f63SVivien Didelot unsigned int ageing_time; 16433162e9aSVladimir Oltean bool vlan_filtering; 165732f794cSVivien Didelot u8 stp_state; 166a5e9a02eSVivien Didelot struct net_device *bridge_dev; 16796567d5dSAndrew Lunn struct devlink_port devlink_port; 168aab9c406SFlorian Fainelli struct phylink *pl; 16967dbb9d4SFlorian Fainelli /* 17067dbb9d4SFlorian Fainelli * Original copy of the master netdev ethtool_ops 17167dbb9d4SFlorian Fainelli */ 17267dbb9d4SFlorian Fainelli const struct ethtool_ops *orig_ethtool_ops; 173da7b9e9bSFlorian Fainelli 174da7b9e9bSFlorian Fainelli /* 175da7b9e9bSFlorian Fainelli * Original copy of the master netdev net_device_ops 176da7b9e9bSFlorian Fainelli */ 177da7b9e9bSFlorian Fainelli const struct net_device_ops *orig_ndo_ops; 178c8b09808SAndrew Lunn }; 179c8b09808SAndrew Lunn 180c8f0b869SBen Hutchings struct dsa_switch { 181c33063d6SAndrew Lunn struct device *dev; 182c33063d6SAndrew Lunn 183c8f0b869SBen Hutchings /* 184c8f0b869SBen Hutchings * Parent switch tree, and switch index. 185c8f0b869SBen Hutchings */ 186c8f0b869SBen Hutchings struct dsa_switch_tree *dst; 18799feaafcSVivien Didelot unsigned int index; 188c8f0b869SBen Hutchings 189f515f192SVivien Didelot /* Listener for switch fabric events */ 190f515f192SVivien Didelot struct notifier_block nb; 191f515f192SVivien Didelot 192c8f0b869SBen Hutchings /* 1937543a6d5SAndrew Lunn * Give the switch driver somewhere to hang its private data 1947543a6d5SAndrew Lunn * structure. 1957543a6d5SAndrew Lunn */ 1967543a6d5SAndrew Lunn void *priv; 1977543a6d5SAndrew Lunn 1987543a6d5SAndrew Lunn /* 199c8f0b869SBen Hutchings * Configuration data for this switch. 200c8f0b869SBen Hutchings */ 201ff04955cSAndrew Lunn struct dsa_chip_data *cd; 202c8f0b869SBen Hutchings 203c8f0b869SBen Hutchings /* 2049d490b4eSVivien Didelot * The switch operations. 205c8f0b869SBen Hutchings */ 206a82f67afSFlorian Fainelli const struct dsa_switch_ops *ops; 207c8f0b869SBen Hutchings 20866472fc0SAndrew Lunn /* 20966472fc0SAndrew Lunn * An array of which element [a] indicates which port on this 21066472fc0SAndrew Lunn * switch should be used to send packets to that are destined 21166472fc0SAndrew Lunn * for switch a. Can be NULL if there is only one switch chip. 21266472fc0SAndrew Lunn */ 21366472fc0SAndrew Lunn s8 rtable[DSA_MAX_SWITCHES]; 21466472fc0SAndrew Lunn 215c8f0b869SBen Hutchings /* 216c8f0b869SBen Hutchings * Slave mii_bus and devices for the individual ports. 217c8f0b869SBen Hutchings */ 2180d8bcdd3SFlorian Fainelli u32 phys_mii_mask; 219c8f0b869SBen Hutchings struct mii_bus *slave_mii_bus; 220a0c02161SVivien Didelot 2210f3da6afSVivien Didelot /* Ageing Time limits in msecs */ 2220f3da6afSVivien Didelot unsigned int ageing_time_min; 2230f3da6afSVivien Didelot unsigned int ageing_time_max; 2240f3da6afSVivien Didelot 22596567d5dSAndrew Lunn /* devlink used to represent this switch device */ 22696567d5dSAndrew Lunn struct devlink *devlink; 22796567d5dSAndrew Lunn 22855199df6SFlorian Fainelli /* Number of switch port queues */ 22955199df6SFlorian Fainelli unsigned int num_tx_queues; 23055199df6SFlorian Fainelli 2318f5d16f6SVladimir Oltean /* Disallow bridge core from requesting different VLAN awareness 2328f5d16f6SVladimir Oltean * settings on ports if not hardware-supported 2338f5d16f6SVladimir Oltean */ 2348f5d16f6SVladimir Oltean bool vlan_filtering_is_global; 2358f5d16f6SVladimir Oltean 23614574676SVladimir Oltean /* In case vlan_filtering_is_global is set, the VLAN awareness state 23714574676SVladimir Oltean * should be retrieved from here and not from the per-port settings. 23814574676SVladimir Oltean */ 23914574676SVladimir Oltean bool vlan_filtering; 24014574676SVladimir Oltean 2410015b80aSSalvatore Mesoraca unsigned long *bitmap; 2420015b80aSSalvatore Mesoraca unsigned long _bitmap; 2430015b80aSSalvatore Mesoraca 244a0c02161SVivien Didelot /* Dynamically allocated ports, keep last */ 245a0c02161SVivien Didelot size_t num_ports; 246a0c02161SVivien Didelot struct dsa_port ports[]; 247c8f0b869SBen Hutchings }; 248c8f0b869SBen Hutchings 249c38c5a66SVivien Didelot static inline const struct dsa_port *dsa_to_port(struct dsa_switch *ds, int p) 250c38c5a66SVivien Didelot { 251c38c5a66SVivien Didelot return &ds->ports[p]; 252c38c5a66SVivien Didelot } 253c38c5a66SVivien Didelot 254bff7b688SVivien Didelot static inline bool dsa_is_unused_port(struct dsa_switch *ds, int p) 255bff7b688SVivien Didelot { 256c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_UNUSED; 257bff7b688SVivien Didelot } 258bff7b688SVivien Didelot 259c8f0b869SBen Hutchings static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p) 260c8f0b869SBen Hutchings { 261c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_CPU; 262c8f0b869SBen Hutchings } 263c8f0b869SBen Hutchings 26460045cbfSAndrew Lunn static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p) 26560045cbfSAndrew Lunn { 266c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_DSA; 26760045cbfSAndrew Lunn } 26860045cbfSAndrew Lunn 2692b3e9891SVivien Didelot static inline bool dsa_is_user_port(struct dsa_switch *ds, int p) 2706cd456f3SVivien Didelot { 271c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_USER; 2726cd456f3SVivien Didelot } 2736cd456f3SVivien Didelot 27402bc6e54SVivien Didelot static inline u32 dsa_user_ports(struct dsa_switch *ds) 27502bc6e54SVivien Didelot { 276c38c5a66SVivien Didelot u32 mask = 0; 277c38c5a66SVivien Didelot int p; 27802bc6e54SVivien Didelot 279c38c5a66SVivien Didelot for (p = 0; p < ds->num_ports; p++) 280c38c5a66SVivien Didelot if (dsa_is_user_port(ds, p)) 281c38c5a66SVivien Didelot mask |= BIT(p); 282c38c5a66SVivien Didelot 283c38c5a66SVivien Didelot return mask; 284c8652c83SVivien Didelot } 285c8652c83SVivien Didelot 2863b8fac5dSVivien Didelot /* Return the local port used to reach an arbitrary switch port */ 2873b8fac5dSVivien Didelot static inline unsigned int dsa_towards_port(struct dsa_switch *ds, int device, 2883b8fac5dSVivien Didelot int port) 2893b8fac5dSVivien Didelot { 2903b8fac5dSVivien Didelot if (device == ds->index) 2913b8fac5dSVivien Didelot return port; 2923b8fac5dSVivien Didelot else 2933b8fac5dSVivien Didelot return ds->rtable[device]; 2943b8fac5dSVivien Didelot } 2953b8fac5dSVivien Didelot 2963b8fac5dSVivien Didelot /* Return the local port used to reach the dedicated CPU port */ 29707073c79SVivien Didelot static inline unsigned int dsa_upstream_port(struct dsa_switch *ds, int port) 298c8f0b869SBen Hutchings { 29907073c79SVivien Didelot const struct dsa_port *dp = dsa_to_port(ds, port); 30007073c79SVivien Didelot const struct dsa_port *cpu_dp = dp->cpu_dp; 30107073c79SVivien Didelot 30207073c79SVivien Didelot if (!cpu_dp) 30307073c79SVivien Didelot return port; 304c8f0b869SBen Hutchings 3053b8fac5dSVivien Didelot return dsa_towards_port(ds, cpu_dp->ds->index, cpu_dp->index); 306c8f0b869SBen Hutchings } 307c8f0b869SBen Hutchings 3082bedde1aSArkadi Sharshevsky typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid, 3092bedde1aSArkadi Sharshevsky bool is_static, void *data); 3109d490b4eSVivien Didelot struct dsa_switch_ops { 3112a93c1a3SFlorian Fainelli #if IS_ENABLED(CONFIG_NET_DSA_LEGACY) 312c8f0b869SBen Hutchings /* 313a6a71f19SVivien Didelot * Legacy probing. 314c8f0b869SBen Hutchings */ 3150209d144SVivien Didelot const char *(*probe)(struct device *dsa_dev, 3160209d144SVivien Didelot struct device *host_dev, int sw_addr, 3170209d144SVivien Didelot void **priv); 3182a93c1a3SFlorian Fainelli #endif 3197b314362SAndrew Lunn 3205ed4e3ebSFlorian Fainelli enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds, 3215ed4e3ebSFlorian Fainelli int port); 3227b314362SAndrew Lunn 323c8f0b869SBen Hutchings int (*setup)(struct dsa_switch *ds); 3246819563eSFlorian Fainelli u32 (*get_phy_flags)(struct dsa_switch *ds, int port); 325c8f0b869SBen Hutchings 326c8f0b869SBen Hutchings /* 327c8f0b869SBen Hutchings * Access to the switch's PHY registers. 328c8f0b869SBen Hutchings */ 329c8f0b869SBen Hutchings int (*phy_read)(struct dsa_switch *ds, int port, int regnum); 330c8f0b869SBen Hutchings int (*phy_write)(struct dsa_switch *ds, int port, 331c8f0b869SBen Hutchings int regnum, u16 val); 332c8f0b869SBen Hutchings 333c8f0b869SBen Hutchings /* 334ec9436baSFlorian Fainelli * Link state adjustment (called from libphy) 335ec9436baSFlorian Fainelli */ 336ec9436baSFlorian Fainelli void (*adjust_link)(struct dsa_switch *ds, int port, 337ec9436baSFlorian Fainelli struct phy_device *phydev); 338ce31b31cSFlorian Fainelli void (*fixed_link_update)(struct dsa_switch *ds, int port, 339ce31b31cSFlorian Fainelli struct fixed_phy_status *st); 340ec9436baSFlorian Fainelli 341ec9436baSFlorian Fainelli /* 34211d8f3ddSFlorian Fainelli * PHYLINK integration 34311d8f3ddSFlorian Fainelli */ 34411d8f3ddSFlorian Fainelli void (*phylink_validate)(struct dsa_switch *ds, int port, 34511d8f3ddSFlorian Fainelli unsigned long *supported, 34611d8f3ddSFlorian Fainelli struct phylink_link_state *state); 34711d8f3ddSFlorian Fainelli int (*phylink_mac_link_state)(struct dsa_switch *ds, int port, 34811d8f3ddSFlorian Fainelli struct phylink_link_state *state); 34911d8f3ddSFlorian Fainelli void (*phylink_mac_config)(struct dsa_switch *ds, int port, 35011d8f3ddSFlorian Fainelli unsigned int mode, 35111d8f3ddSFlorian Fainelli const struct phylink_link_state *state); 35211d8f3ddSFlorian Fainelli void (*phylink_mac_an_restart)(struct dsa_switch *ds, int port); 35311d8f3ddSFlorian Fainelli void (*phylink_mac_link_down)(struct dsa_switch *ds, int port, 35411d8f3ddSFlorian Fainelli unsigned int mode, 35511d8f3ddSFlorian Fainelli phy_interface_t interface); 35611d8f3ddSFlorian Fainelli void (*phylink_mac_link_up)(struct dsa_switch *ds, int port, 35711d8f3ddSFlorian Fainelli unsigned int mode, 35811d8f3ddSFlorian Fainelli phy_interface_t interface, 35911d8f3ddSFlorian Fainelli struct phy_device *phydev); 36011d8f3ddSFlorian Fainelli void (*phylink_fixed_state)(struct dsa_switch *ds, int port, 36111d8f3ddSFlorian Fainelli struct phylink_link_state *state); 36211d8f3ddSFlorian Fainelli /* 363c8f0b869SBen Hutchings * ethtool hardware statistics. 364c8f0b869SBen Hutchings */ 36589f09048SFlorian Fainelli void (*get_strings)(struct dsa_switch *ds, int port, 36689f09048SFlorian Fainelli u32 stringset, uint8_t *data); 367c8f0b869SBen Hutchings void (*get_ethtool_stats)(struct dsa_switch *ds, 368c8f0b869SBen Hutchings int port, uint64_t *data); 36989f09048SFlorian Fainelli int (*get_sset_count)(struct dsa_switch *ds, int port, int sset); 370cf963573SFlorian Fainelli void (*get_ethtool_phy_stats)(struct dsa_switch *ds, 371cf963573SFlorian Fainelli int port, uint64_t *data); 37224462549SFlorian Fainelli 37324462549SFlorian Fainelli /* 37419e57c4eSFlorian Fainelli * ethtool Wake-on-LAN 37519e57c4eSFlorian Fainelli */ 37619e57c4eSFlorian Fainelli void (*get_wol)(struct dsa_switch *ds, int port, 37719e57c4eSFlorian Fainelli struct ethtool_wolinfo *w); 37819e57c4eSFlorian Fainelli int (*set_wol)(struct dsa_switch *ds, int port, 37919e57c4eSFlorian Fainelli struct ethtool_wolinfo *w); 38019e57c4eSFlorian Fainelli 38119e57c4eSFlorian Fainelli /* 3820336369dSBrandon Streiff * ethtool timestamp info 3830336369dSBrandon Streiff */ 3840336369dSBrandon Streiff int (*get_ts_info)(struct dsa_switch *ds, int port, 3850336369dSBrandon Streiff struct ethtool_ts_info *ts); 3860336369dSBrandon Streiff 3870336369dSBrandon Streiff /* 38824462549SFlorian Fainelli * Suspend and resume 38924462549SFlorian Fainelli */ 39024462549SFlorian Fainelli int (*suspend)(struct dsa_switch *ds); 39124462549SFlorian Fainelli int (*resume)(struct dsa_switch *ds); 392b2f2af21SFlorian Fainelli 393b2f2af21SFlorian Fainelli /* 394b2f2af21SFlorian Fainelli * Port enable/disable 395b2f2af21SFlorian Fainelli */ 396b2f2af21SFlorian Fainelli int (*port_enable)(struct dsa_switch *ds, int port, 397b2f2af21SFlorian Fainelli struct phy_device *phy); 39875104db0SAndrew Lunn void (*port_disable)(struct dsa_switch *ds, int port); 3997905288fSFlorian Fainelli 4007905288fSFlorian Fainelli /* 40108f50061SVivien Didelot * Port's MAC EEE settings 4027905288fSFlorian Fainelli */ 40308f50061SVivien Didelot int (*set_mac_eee)(struct dsa_switch *ds, int port, 4047905288fSFlorian Fainelli struct ethtool_eee *e); 40508f50061SVivien Didelot int (*get_mac_eee)(struct dsa_switch *ds, int port, 4067905288fSFlorian Fainelli struct ethtool_eee *e); 40751579c3fSGuenter Roeck 4086793abb4SGuenter Roeck /* EEPROM access */ 4096793abb4SGuenter Roeck int (*get_eeprom_len)(struct dsa_switch *ds); 4106793abb4SGuenter Roeck int (*get_eeprom)(struct dsa_switch *ds, 4116793abb4SGuenter Roeck struct ethtool_eeprom *eeprom, u8 *data); 4126793abb4SGuenter Roeck int (*set_eeprom)(struct dsa_switch *ds, 4136793abb4SGuenter Roeck struct ethtool_eeprom *eeprom, u8 *data); 4143d762a0fSGuenter Roeck 4153d762a0fSGuenter Roeck /* 4163d762a0fSGuenter Roeck * Register access. 4173d762a0fSGuenter Roeck */ 4183d762a0fSGuenter Roeck int (*get_regs_len)(struct dsa_switch *ds, int port); 4193d762a0fSGuenter Roeck void (*get_regs)(struct dsa_switch *ds, int port, 4203d762a0fSGuenter Roeck struct ethtool_regs *regs, void *p); 421b73adef6SFlorian Fainelli 422b73adef6SFlorian Fainelli /* 423b73adef6SFlorian Fainelli * Bridge integration 424b73adef6SFlorian Fainelli */ 42534a79f63SVivien Didelot int (*set_ageing_time)(struct dsa_switch *ds, unsigned int msecs); 42671327a4eSVivien Didelot int (*port_bridge_join)(struct dsa_switch *ds, int port, 427a6692754SVivien Didelot struct net_device *bridge); 428f123f2fbSVivien Didelot void (*port_bridge_leave)(struct dsa_switch *ds, int port, 429f123f2fbSVivien Didelot struct net_device *bridge); 43043c44a9fSVivien Didelot void (*port_stp_state_set)(struct dsa_switch *ds, int port, 431b73adef6SFlorian Fainelli u8 state); 432732f794cSVivien Didelot void (*port_fast_age)(struct dsa_switch *ds, int port); 43357652796SRussell King int (*port_egress_floods)(struct dsa_switch *ds, int port, 43457652796SRussell King bool unicast, bool multicast); 4352a778e1bSVivien Didelot 4362a778e1bSVivien Didelot /* 43711149536SVivien Didelot * VLAN support 43811149536SVivien Didelot */ 439fb2dabadSVivien Didelot int (*port_vlan_filtering)(struct dsa_switch *ds, int port, 440fb2dabadSVivien Didelot bool vlan_filtering); 44176e398a6SVivien Didelot int (*port_vlan_prepare)(struct dsa_switch *ds, int port, 44280e02360SVivien Didelot const struct switchdev_obj_port_vlan *vlan); 4434d5770b3SVivien Didelot void (*port_vlan_add)(struct dsa_switch *ds, int port, 44480e02360SVivien Didelot const struct switchdev_obj_port_vlan *vlan); 44576e398a6SVivien Didelot int (*port_vlan_del)(struct dsa_switch *ds, int port, 44676e398a6SVivien Didelot const struct switchdev_obj_port_vlan *vlan); 44711149536SVivien Didelot /* 4482a778e1bSVivien Didelot * Forwarding database 4492a778e1bSVivien Didelot */ 4501b6dd556SArkadi Sharshevsky int (*port_fdb_add)(struct dsa_switch *ds, int port, 4516c2c1dcbSArkadi Sharshevsky const unsigned char *addr, u16 vid); 4522a778e1bSVivien Didelot int (*port_fdb_del)(struct dsa_switch *ds, int port, 4536c2c1dcbSArkadi Sharshevsky const unsigned char *addr, u16 vid); 454ea70ba98SVivien Didelot int (*port_fdb_dump)(struct dsa_switch *ds, int port, 4552bedde1aSArkadi Sharshevsky dsa_fdb_dump_cb_t *cb, void *data); 4568df30255SVivien Didelot 4578df30255SVivien Didelot /* 4588df30255SVivien Didelot * Multicast database 4598df30255SVivien Didelot */ 4608df30255SVivien Didelot int (*port_mdb_prepare)(struct dsa_switch *ds, int port, 4613709aadcSVivien Didelot const struct switchdev_obj_port_mdb *mdb); 4628df30255SVivien Didelot void (*port_mdb_add)(struct dsa_switch *ds, int port, 4633709aadcSVivien Didelot const struct switchdev_obj_port_mdb *mdb); 4648df30255SVivien Didelot int (*port_mdb_del)(struct dsa_switch *ds, int port, 4658df30255SVivien Didelot const struct switchdev_obj_port_mdb *mdb); 466bf9f2648SFlorian Fainelli /* 467bf9f2648SFlorian Fainelli * RXNFC 468bf9f2648SFlorian Fainelli */ 469bf9f2648SFlorian Fainelli int (*get_rxnfc)(struct dsa_switch *ds, int port, 470bf9f2648SFlorian Fainelli struct ethtool_rxnfc *nfc, u32 *rule_locs); 471bf9f2648SFlorian Fainelli int (*set_rxnfc)(struct dsa_switch *ds, int port, 472bf9f2648SFlorian Fainelli struct ethtool_rxnfc *nfc); 473f50f2127SFlorian Fainelli 474f50f2127SFlorian Fainelli /* 475f50f2127SFlorian Fainelli * TC integration 476f50f2127SFlorian Fainelli */ 477f50f2127SFlorian Fainelli int (*port_mirror_add)(struct dsa_switch *ds, int port, 478f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry *mirror, 479f50f2127SFlorian Fainelli bool ingress); 480f50f2127SFlorian Fainelli void (*port_mirror_del)(struct dsa_switch *ds, int port, 481f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry *mirror); 48240ef2c93SVivien Didelot 48340ef2c93SVivien Didelot /* 48440ef2c93SVivien Didelot * Cross-chip operations 48540ef2c93SVivien Didelot */ 48640ef2c93SVivien Didelot int (*crosschip_bridge_join)(struct dsa_switch *ds, int sw_index, 48740ef2c93SVivien Didelot int port, struct net_device *br); 48840ef2c93SVivien Didelot void (*crosschip_bridge_leave)(struct dsa_switch *ds, int sw_index, 48940ef2c93SVivien Didelot int port, struct net_device *br); 4900336369dSBrandon Streiff 4910336369dSBrandon Streiff /* 4920336369dSBrandon Streiff * PTP functionality 4930336369dSBrandon Streiff */ 4940336369dSBrandon Streiff int (*port_hwtstamp_get)(struct dsa_switch *ds, int port, 4950336369dSBrandon Streiff struct ifreq *ifr); 4960336369dSBrandon Streiff int (*port_hwtstamp_set)(struct dsa_switch *ds, int port, 4970336369dSBrandon Streiff struct ifreq *ifr); 49890af1059SBrandon Streiff bool (*port_txtstamp)(struct dsa_switch *ds, int port, 49990af1059SBrandon Streiff struct sk_buff *clone, unsigned int type); 50090af1059SBrandon Streiff bool (*port_rxtstamp)(struct dsa_switch *ds, int port, 50190af1059SBrandon Streiff struct sk_buff *skb, unsigned int type); 502c8f0b869SBen Hutchings }; 503c8f0b869SBen Hutchings 504ab3d408dSFlorian Fainelli struct dsa_switch_driver { 505ab3d408dSFlorian Fainelli struct list_head list; 506a82f67afSFlorian Fainelli const struct dsa_switch_ops *ops; 507ab3d408dSFlorian Fainelli }; 508ab3d408dSFlorian Fainelli 5092a93c1a3SFlorian Fainelli #if IS_ENABLED(CONFIG_NET_DSA_LEGACY) 510a6a71f19SVivien Didelot /* Legacy driver registration */ 511ab3d408dSFlorian Fainelli void register_switch_driver(struct dsa_switch_driver *type); 512ab3d408dSFlorian Fainelli void unregister_switch_driver(struct dsa_switch_driver *type); 513b4d2394dSAlexander Duyck struct mii_bus *dsa_host_dev_to_mii_bus(struct device *dev); 514a6a71f19SVivien Didelot 5152a93c1a3SFlorian Fainelli #else 5162a93c1a3SFlorian Fainelli static inline void register_switch_driver(struct dsa_switch_driver *type) { } 5172a93c1a3SFlorian Fainelli static inline void unregister_switch_driver(struct dsa_switch_driver *type) { } 5182a93c1a3SFlorian Fainelli static inline struct mii_bus *dsa_host_dev_to_mii_bus(struct device *dev) 5192a93c1a3SFlorian Fainelli { 5202a93c1a3SFlorian Fainelli return NULL; 5212a93c1a3SFlorian Fainelli } 5222a93c1a3SFlorian Fainelli #endif 52314b89f36SFlorian Fainelli struct net_device *dsa_dev_to_net_device(struct device *dev); 524c8f0b869SBen Hutchings 52573a7ece8SVivien Didelot /* Keep inline for faster access in hot path */ 526c6e970a0SAndrew Lunn static inline bool netdev_uses_dsa(struct net_device *dev) 527c6e970a0SAndrew Lunn { 528c6e970a0SAndrew Lunn #if IS_ENABLED(CONFIG_NET_DSA) 529717ffbfbSVivien Didelot return dev->dsa_ptr && dev->dsa_ptr->rcv; 530c6e970a0SAndrew Lunn #endif 531c6e970a0SAndrew Lunn return false; 532c6e970a0SAndrew Lunn } 533c6e970a0SAndrew Lunn 534a0c02161SVivien Didelot struct dsa_switch *dsa_switch_alloc(struct device *dev, size_t n); 53583c0afaeSAndrew Lunn void dsa_unregister_switch(struct dsa_switch *ds); 53623c9ee49SVivien Didelot int dsa_register_switch(struct dsa_switch *ds); 537ea825e70SFlorian Fainelli #ifdef CONFIG_PM_SLEEP 538ea825e70SFlorian Fainelli int dsa_switch_suspend(struct dsa_switch *ds); 539ea825e70SFlorian Fainelli int dsa_switch_resume(struct dsa_switch *ds); 540ea825e70SFlorian Fainelli #else 541ea825e70SFlorian Fainelli static inline int dsa_switch_suspend(struct dsa_switch *ds) 542ea825e70SFlorian Fainelli { 543ea825e70SFlorian Fainelli return 0; 544ea825e70SFlorian Fainelli } 545ea825e70SFlorian Fainelli static inline int dsa_switch_resume(struct dsa_switch *ds) 546ea825e70SFlorian Fainelli { 547ea825e70SFlorian Fainelli return 0; 548ea825e70SFlorian Fainelli } 549ea825e70SFlorian Fainelli #endif /* CONFIG_PM_SLEEP */ 550ea825e70SFlorian Fainelli 55160724d4bSFlorian Fainelli enum dsa_notifier_type { 55260724d4bSFlorian Fainelli DSA_PORT_REGISTER, 55360724d4bSFlorian Fainelli DSA_PORT_UNREGISTER, 55460724d4bSFlorian Fainelli }; 55560724d4bSFlorian Fainelli 55660724d4bSFlorian Fainelli struct dsa_notifier_info { 55760724d4bSFlorian Fainelli struct net_device *dev; 55860724d4bSFlorian Fainelli }; 55960724d4bSFlorian Fainelli 56060724d4bSFlorian Fainelli struct dsa_notifier_register_info { 56160724d4bSFlorian Fainelli struct dsa_notifier_info info; /* must be first */ 56260724d4bSFlorian Fainelli struct net_device *master; 56360724d4bSFlorian Fainelli unsigned int port_number; 56460724d4bSFlorian Fainelli unsigned int switch_number; 56560724d4bSFlorian Fainelli }; 56660724d4bSFlorian Fainelli 56760724d4bSFlorian Fainelli static inline struct net_device * 56860724d4bSFlorian Fainelli dsa_notifier_info_to_dev(const struct dsa_notifier_info *info) 56960724d4bSFlorian Fainelli { 57060724d4bSFlorian Fainelli return info->dev; 57160724d4bSFlorian Fainelli } 57260724d4bSFlorian Fainelli 57360724d4bSFlorian Fainelli #if IS_ENABLED(CONFIG_NET_DSA) 57460724d4bSFlorian Fainelli int register_dsa_notifier(struct notifier_block *nb); 57560724d4bSFlorian Fainelli int unregister_dsa_notifier(struct notifier_block *nb); 57660724d4bSFlorian Fainelli int call_dsa_notifiers(unsigned long val, struct net_device *dev, 57760724d4bSFlorian Fainelli struct dsa_notifier_info *info); 57860724d4bSFlorian Fainelli #else 57960724d4bSFlorian Fainelli static inline int register_dsa_notifier(struct notifier_block *nb) 58060724d4bSFlorian Fainelli { 58160724d4bSFlorian Fainelli return 0; 58260724d4bSFlorian Fainelli } 58360724d4bSFlorian Fainelli 58460724d4bSFlorian Fainelli static inline int unregister_dsa_notifier(struct notifier_block *nb) 58560724d4bSFlorian Fainelli { 58660724d4bSFlorian Fainelli return 0; 58760724d4bSFlorian Fainelli } 58860724d4bSFlorian Fainelli 58960724d4bSFlorian Fainelli static inline int call_dsa_notifiers(unsigned long val, struct net_device *dev, 59060724d4bSFlorian Fainelli struct dsa_notifier_info *info) 59160724d4bSFlorian Fainelli { 59260724d4bSFlorian Fainelli return NOTIFY_DONE; 59360724d4bSFlorian Fainelli } 59460724d4bSFlorian Fainelli #endif 59560724d4bSFlorian Fainelli 5960a5f14ceSFlorian Fainelli /* Broadcom tag specific helpers to insert and extract queue/port number */ 5970a5f14ceSFlorian Fainelli #define BRCM_TAG_SET_PORT_QUEUE(p, q) ((p) << 8 | q) 5980a5f14ceSFlorian Fainelli #define BRCM_TAG_GET_PORT(v) ((v) >> 8) 5990a5f14ceSFlorian Fainelli #define BRCM_TAG_GET_QUEUE(v) ((v) & 0xff) 6000a5f14ceSFlorian Fainelli 601cf963573SFlorian Fainelli 602cf963573SFlorian Fainelli int dsa_port_get_phy_strings(struct dsa_port *dp, uint8_t *data); 603cf963573SFlorian Fainelli int dsa_port_get_ethtool_phy_stats(struct dsa_port *dp, uint64_t *data); 604cf963573SFlorian Fainelli int dsa_port_get_phy_sset_count(struct dsa_port *dp); 60511d8f3ddSFlorian Fainelli void dsa_port_phylink_mac_change(struct dsa_switch *ds, int port, bool up); 606cf963573SFlorian Fainelli 607d3b8c049SAndrew Lunn struct dsa_tag_driver { 608d3b8c049SAndrew Lunn const struct dsa_device_ops *ops; 609d3b8c049SAndrew Lunn struct list_head list; 610d3b8c049SAndrew Lunn struct module *owner; 611d3b8c049SAndrew Lunn }; 612d3b8c049SAndrew Lunn 613d3b8c049SAndrew Lunn void dsa_tag_drivers_register(struct dsa_tag_driver *dsa_tag_driver_array[], 614d3b8c049SAndrew Lunn unsigned int count, 615d3b8c049SAndrew Lunn struct module *owner); 616d3b8c049SAndrew Lunn void dsa_tag_drivers_unregister(struct dsa_tag_driver *dsa_tag_driver_array[], 617d3b8c049SAndrew Lunn unsigned int count); 618d3b8c049SAndrew Lunn 619d3b8c049SAndrew Lunn #define dsa_tag_driver_module_drivers(__dsa_tag_drivers_array, __count) \ 620d3b8c049SAndrew Lunn static int __init dsa_tag_driver_module_init(void) \ 621d3b8c049SAndrew Lunn { \ 622d3b8c049SAndrew Lunn dsa_tag_drivers_register(__dsa_tag_drivers_array, __count, \ 623d3b8c049SAndrew Lunn THIS_MODULE); \ 624d3b8c049SAndrew Lunn return 0; \ 625d3b8c049SAndrew Lunn } \ 626d3b8c049SAndrew Lunn module_init(dsa_tag_driver_module_init); \ 627d3b8c049SAndrew Lunn \ 628d3b8c049SAndrew Lunn static void __exit dsa_tag_driver_module_exit(void) \ 629d3b8c049SAndrew Lunn { \ 630d3b8c049SAndrew Lunn dsa_tag_drivers_unregister(__dsa_tag_drivers_array, __count); \ 631d3b8c049SAndrew Lunn } \ 632d3b8c049SAndrew Lunn module_exit(dsa_tag_driver_module_exit) 633d3b8c049SAndrew Lunn 634d3b8c049SAndrew Lunn /** 635d3b8c049SAndrew Lunn * module_dsa_tag_drivers() - Helper macro for registering DSA tag 636d3b8c049SAndrew Lunn * drivers 637d3b8c049SAndrew Lunn * @__ops_array: Array of tag driver strucutres 638d3b8c049SAndrew Lunn * 639d3b8c049SAndrew Lunn * Helper macro for DSA tag drivers which do not do anything special 640d3b8c049SAndrew Lunn * in module init/exit. Each module may only use this macro once, and 641d3b8c049SAndrew Lunn * calling it replaces module_init() and module_exit(). 642d3b8c049SAndrew Lunn */ 643d3b8c049SAndrew Lunn #define module_dsa_tag_drivers(__ops_array) \ 644d3b8c049SAndrew Lunn dsa_tag_driver_module_drivers(__ops_array, ARRAY_SIZE(__ops_array)) 645d3b8c049SAndrew Lunn 646d3b8c049SAndrew Lunn #define DSA_TAG_DRIVER_NAME(__ops) dsa_tag_driver ## _ ## __ops 647d3b8c049SAndrew Lunn 648d3b8c049SAndrew Lunn /* Create a static structure we can build a linked list of dsa_tag 649d3b8c049SAndrew Lunn * drivers 650d3b8c049SAndrew Lunn */ 651d3b8c049SAndrew Lunn #define DSA_TAG_DRIVER(__ops) \ 652d3b8c049SAndrew Lunn static struct dsa_tag_driver DSA_TAG_DRIVER_NAME(__ops) = { \ 653d3b8c049SAndrew Lunn .ops = &__ops, \ 654d3b8c049SAndrew Lunn } 655d3b8c049SAndrew Lunn 656d3b8c049SAndrew Lunn /** 657d3b8c049SAndrew Lunn * module_dsa_tag_driver() - Helper macro for registering a single DSA tag 658d3b8c049SAndrew Lunn * driver 659d3b8c049SAndrew Lunn * @__ops: Single tag driver structures 660d3b8c049SAndrew Lunn * 661d3b8c049SAndrew Lunn * Helper macro for DSA tag drivers which do not do anything special 662d3b8c049SAndrew Lunn * in module init/exit. Each module may only use this macro once, and 663d3b8c049SAndrew Lunn * calling it replaces module_init() and module_exit(). 664d3b8c049SAndrew Lunn */ 665d3b8c049SAndrew Lunn #define module_dsa_tag_driver(__ops) \ 666d3b8c049SAndrew Lunn DSA_TAG_DRIVER(__ops); \ 667d3b8c049SAndrew Lunn \ 668d3b8c049SAndrew Lunn static struct dsa_tag_driver *dsa_tag_driver_array[] = { \ 669d3b8c049SAndrew Lunn &DSA_TAG_DRIVER_NAME(__ops) \ 670d3b8c049SAndrew Lunn }; \ 671d3b8c049SAndrew Lunn module_dsa_tag_drivers(dsa_tag_driver_array) 67291da11f8SLennert Buytenhek #endif 673d3b8c049SAndrew Lunn 674