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); 72a5dd3087SAndrew Lunn unsigned int overhead; 73875138f8SAndrew Lunn const char *name; 74056eed2fSAndrew Lunn enum dsa_tag_protocol proto; 7568277a2cSJohn Crispin }; 7668277a2cSJohn Crispin 770b42f033SAndrew Lunn #define DSA_TAG_DRIVER_ALIAS "dsa_tag-" 780b42f033SAndrew Lunn #define MODULE_ALIAS_DSA_TAG_DRIVER(__proto) \ 790b42f033SAndrew Lunn MODULE_ALIAS(DSA_TAG_DRIVER_ALIAS __stringify(__proto##_VALUE)) 800b42f033SAndrew Lunn 81cf50dcc2SBen Hutchings struct dsa_switch_tree { 8283c0afaeSAndrew Lunn struct list_head list; 8383c0afaeSAndrew Lunn 84f515f192SVivien Didelot /* Notifier chain for switch-wide events */ 85f515f192SVivien Didelot struct raw_notifier_head nh; 86f515f192SVivien Didelot 8783c0afaeSAndrew Lunn /* Tree identifier */ 8849463b7fSVivien Didelot unsigned int index; 8983c0afaeSAndrew Lunn 9083c0afaeSAndrew Lunn /* Number of switches attached to this tree */ 9183c0afaeSAndrew Lunn struct kref refcount; 9283c0afaeSAndrew Lunn 9383c0afaeSAndrew Lunn /* Has this tree been applied to the hardware? */ 94ec15dd42SVivien Didelot bool setup; 9583c0afaeSAndrew Lunn 96cf50dcc2SBen Hutchings /* 97cf50dcc2SBen Hutchings * Configuration data for the platform device that owns 98cf50dcc2SBen Hutchings * this dsa switch tree instance. 99cf50dcc2SBen Hutchings */ 100cf50dcc2SBen Hutchings struct dsa_platform_data *pd; 101cf85d08fSLennert Buytenhek 102cf50dcc2SBen Hutchings /* 1038b0d3ea5SVivien Didelot * The switch port to which the CPU is attached. 104cf50dcc2SBen Hutchings */ 1058b0d3ea5SVivien Didelot struct dsa_port *cpu_dp; 106cf50dcc2SBen Hutchings 107cf50dcc2SBen Hutchings /* 108cf50dcc2SBen Hutchings * Data for the individual switch chips. 109cf50dcc2SBen Hutchings */ 110cf50dcc2SBen Hutchings struct dsa_switch *ds[DSA_MAX_SWITCHES]; 111cf50dcc2SBen Hutchings }; 112cf50dcc2SBen Hutchings 113f50f2127SFlorian Fainelli /* TC matchall action types, only mirroring for now */ 114f50f2127SFlorian Fainelli enum dsa_port_mall_action_type { 115f50f2127SFlorian Fainelli DSA_PORT_MALL_MIRROR, 116f50f2127SFlorian Fainelli }; 117f50f2127SFlorian Fainelli 118f50f2127SFlorian Fainelli /* TC mirroring entry */ 119f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry { 120f50f2127SFlorian Fainelli u8 to_local_port; 121f50f2127SFlorian Fainelli bool ingress; 122f50f2127SFlorian Fainelli }; 123f50f2127SFlorian Fainelli 124f50f2127SFlorian Fainelli /* TC matchall entry */ 125f50f2127SFlorian Fainelli struct dsa_mall_tc_entry { 126f50f2127SFlorian Fainelli struct list_head list; 127f50f2127SFlorian Fainelli unsigned long cookie; 128f50f2127SFlorian Fainelli enum dsa_port_mall_action_type type; 129f50f2127SFlorian Fainelli union { 130f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry mirror; 131f50f2127SFlorian Fainelli }; 132f50f2127SFlorian Fainelli }; 133f50f2127SFlorian Fainelli 134f50f2127SFlorian Fainelli 135c8b09808SAndrew Lunn struct dsa_port { 136f8b8b1cdSVivien Didelot /* A CPU port is physically connected to a master device. 137f8b8b1cdSVivien Didelot * A user port exposed to userspace has a slave device. 138f8b8b1cdSVivien Didelot */ 139f8b8b1cdSVivien Didelot union { 140f8b8b1cdSVivien Didelot struct net_device *master; 141f8b8b1cdSVivien Didelot struct net_device *slave; 142f8b8b1cdSVivien Didelot }; 143f8b8b1cdSVivien Didelot 14415240248SVivien Didelot /* CPU port tagging operations used by master or slave devices */ 14515240248SVivien Didelot const struct dsa_device_ops *tag_ops; 14615240248SVivien Didelot 1473e41f93bSVivien Didelot /* Copies for faster access in master receive hot path */ 1483e41f93bSVivien Didelot struct dsa_switch_tree *dst; 1493e41f93bSVivien Didelot struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev, 1503e41f93bSVivien Didelot struct packet_type *pt); 1513e41f93bSVivien Didelot 152057cad2cSVivien Didelot enum { 153057cad2cSVivien Didelot DSA_PORT_TYPE_UNUSED = 0, 154057cad2cSVivien Didelot DSA_PORT_TYPE_CPU, 155057cad2cSVivien Didelot DSA_PORT_TYPE_DSA, 156057cad2cSVivien Didelot DSA_PORT_TYPE_USER, 157057cad2cSVivien Didelot } type; 158057cad2cSVivien Didelot 159818be848SVivien Didelot struct dsa_switch *ds; 160818be848SVivien Didelot unsigned int index; 16171e0bbdeSFlorian Fainelli const char *name; 16224a9332aSVivien Didelot const struct dsa_port *cpu_dp; 163a2c7023fSXiaofei Shen const char *mac; 164189b0d93SAndrew Lunn struct device_node *dn; 16534a79f63SVivien Didelot unsigned int ageing_time; 16633162e9aSVladimir Oltean bool vlan_filtering; 167732f794cSVivien Didelot u8 stp_state; 168a5e9a02eSVivien Didelot struct net_device *bridge_dev; 16996567d5dSAndrew Lunn struct devlink_port devlink_port; 170aab9c406SFlorian Fainelli struct phylink *pl; 17167dbb9d4SFlorian Fainelli /* 17267dbb9d4SFlorian Fainelli * Original copy of the master netdev ethtool_ops 17367dbb9d4SFlorian Fainelli */ 17467dbb9d4SFlorian Fainelli const struct ethtool_ops *orig_ethtool_ops; 175da7b9e9bSFlorian Fainelli 176da7b9e9bSFlorian Fainelli /* 177da7b9e9bSFlorian Fainelli * Original copy of the master netdev net_device_ops 178da7b9e9bSFlorian Fainelli */ 179da7b9e9bSFlorian Fainelli const struct net_device_ops *orig_ndo_ops; 180c8b09808SAndrew Lunn }; 181c8b09808SAndrew Lunn 182c8f0b869SBen Hutchings struct dsa_switch { 183c33063d6SAndrew Lunn struct device *dev; 184c33063d6SAndrew Lunn 185c8f0b869SBen Hutchings /* 186c8f0b869SBen Hutchings * Parent switch tree, and switch index. 187c8f0b869SBen Hutchings */ 188c8f0b869SBen Hutchings struct dsa_switch_tree *dst; 18999feaafcSVivien Didelot unsigned int index; 190c8f0b869SBen Hutchings 191f515f192SVivien Didelot /* Listener for switch fabric events */ 192f515f192SVivien Didelot struct notifier_block nb; 193f515f192SVivien Didelot 194c8f0b869SBen Hutchings /* 1957543a6d5SAndrew Lunn * Give the switch driver somewhere to hang its private data 1967543a6d5SAndrew Lunn * structure. 1977543a6d5SAndrew Lunn */ 1987543a6d5SAndrew Lunn void *priv; 1997543a6d5SAndrew Lunn 2007543a6d5SAndrew Lunn /* 201c8f0b869SBen Hutchings * Configuration data for this switch. 202c8f0b869SBen Hutchings */ 203ff04955cSAndrew Lunn struct dsa_chip_data *cd; 204c8f0b869SBen Hutchings 205c8f0b869SBen Hutchings /* 2069d490b4eSVivien Didelot * The switch operations. 207c8f0b869SBen Hutchings */ 208a82f67afSFlorian Fainelli const struct dsa_switch_ops *ops; 209c8f0b869SBen Hutchings 21066472fc0SAndrew Lunn /* 21166472fc0SAndrew Lunn * An array of which element [a] indicates which port on this 21266472fc0SAndrew Lunn * switch should be used to send packets to that are destined 21366472fc0SAndrew Lunn * for switch a. Can be NULL if there is only one switch chip. 21466472fc0SAndrew Lunn */ 21566472fc0SAndrew Lunn s8 rtable[DSA_MAX_SWITCHES]; 21666472fc0SAndrew Lunn 217c8f0b869SBen Hutchings /* 218c8f0b869SBen Hutchings * Slave mii_bus and devices for the individual ports. 219c8f0b869SBen Hutchings */ 2200d8bcdd3SFlorian Fainelli u32 phys_mii_mask; 221c8f0b869SBen Hutchings struct mii_bus *slave_mii_bus; 222a0c02161SVivien Didelot 2230f3da6afSVivien Didelot /* Ageing Time limits in msecs */ 2240f3da6afSVivien Didelot unsigned int ageing_time_min; 2250f3da6afSVivien Didelot unsigned int ageing_time_max; 2260f3da6afSVivien Didelot 22796567d5dSAndrew Lunn /* devlink used to represent this switch device */ 22896567d5dSAndrew Lunn struct devlink *devlink; 22996567d5dSAndrew Lunn 23055199df6SFlorian Fainelli /* Number of switch port queues */ 23155199df6SFlorian Fainelli unsigned int num_tx_queues; 23255199df6SFlorian Fainelli 2338f5d16f6SVladimir Oltean /* Disallow bridge core from requesting different VLAN awareness 2348f5d16f6SVladimir Oltean * settings on ports if not hardware-supported 2358f5d16f6SVladimir Oltean */ 2368f5d16f6SVladimir Oltean bool vlan_filtering_is_global; 2378f5d16f6SVladimir Oltean 23814574676SVladimir Oltean /* In case vlan_filtering_is_global is set, the VLAN awareness state 23914574676SVladimir Oltean * should be retrieved from here and not from the per-port settings. 24014574676SVladimir Oltean */ 24114574676SVladimir Oltean bool vlan_filtering; 24214574676SVladimir Oltean 2430015b80aSSalvatore Mesoraca unsigned long *bitmap; 2440015b80aSSalvatore Mesoraca unsigned long _bitmap; 2450015b80aSSalvatore Mesoraca 246a0c02161SVivien Didelot /* Dynamically allocated ports, keep last */ 247a0c02161SVivien Didelot size_t num_ports; 248a0c02161SVivien Didelot struct dsa_port ports[]; 249c8f0b869SBen Hutchings }; 250c8f0b869SBen Hutchings 251c38c5a66SVivien Didelot static inline const struct dsa_port *dsa_to_port(struct dsa_switch *ds, int p) 252c38c5a66SVivien Didelot { 253c38c5a66SVivien Didelot return &ds->ports[p]; 254c38c5a66SVivien Didelot } 255c38c5a66SVivien Didelot 256bff7b688SVivien Didelot static inline bool dsa_is_unused_port(struct dsa_switch *ds, int p) 257bff7b688SVivien Didelot { 258c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_UNUSED; 259bff7b688SVivien Didelot } 260bff7b688SVivien Didelot 261c8f0b869SBen Hutchings static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p) 262c8f0b869SBen Hutchings { 263c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_CPU; 264c8f0b869SBen Hutchings } 265c8f0b869SBen Hutchings 26660045cbfSAndrew Lunn static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p) 26760045cbfSAndrew Lunn { 268c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_DSA; 26960045cbfSAndrew Lunn } 27060045cbfSAndrew Lunn 2712b3e9891SVivien Didelot static inline bool dsa_is_user_port(struct dsa_switch *ds, int p) 2726cd456f3SVivien Didelot { 273c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_USER; 2746cd456f3SVivien Didelot } 2756cd456f3SVivien Didelot 27602bc6e54SVivien Didelot static inline u32 dsa_user_ports(struct dsa_switch *ds) 27702bc6e54SVivien Didelot { 278c38c5a66SVivien Didelot u32 mask = 0; 279c38c5a66SVivien Didelot int p; 28002bc6e54SVivien Didelot 281c38c5a66SVivien Didelot for (p = 0; p < ds->num_ports; p++) 282c38c5a66SVivien Didelot if (dsa_is_user_port(ds, p)) 283c38c5a66SVivien Didelot mask |= BIT(p); 284c38c5a66SVivien Didelot 285c38c5a66SVivien Didelot return mask; 286c8652c83SVivien Didelot } 287c8652c83SVivien Didelot 2883b8fac5dSVivien Didelot /* Return the local port used to reach an arbitrary switch port */ 2893b8fac5dSVivien Didelot static inline unsigned int dsa_towards_port(struct dsa_switch *ds, int device, 2903b8fac5dSVivien Didelot int port) 2913b8fac5dSVivien Didelot { 2923b8fac5dSVivien Didelot if (device == ds->index) 2933b8fac5dSVivien Didelot return port; 2943b8fac5dSVivien Didelot else 2953b8fac5dSVivien Didelot return ds->rtable[device]; 2963b8fac5dSVivien Didelot } 2973b8fac5dSVivien Didelot 2983b8fac5dSVivien Didelot /* Return the local port used to reach the dedicated CPU port */ 29907073c79SVivien Didelot static inline unsigned int dsa_upstream_port(struct dsa_switch *ds, int port) 300c8f0b869SBen Hutchings { 30107073c79SVivien Didelot const struct dsa_port *dp = dsa_to_port(ds, port); 30207073c79SVivien Didelot const struct dsa_port *cpu_dp = dp->cpu_dp; 30307073c79SVivien Didelot 30407073c79SVivien Didelot if (!cpu_dp) 30507073c79SVivien Didelot return port; 306c8f0b869SBen Hutchings 3073b8fac5dSVivien Didelot return dsa_towards_port(ds, cpu_dp->ds->index, cpu_dp->index); 308c8f0b869SBen Hutchings } 309c8f0b869SBen Hutchings 310cf2d45f5SVladimir Oltean static inline bool dsa_port_is_vlan_filtering(const struct dsa_port *dp) 311cf2d45f5SVladimir Oltean { 312cf2d45f5SVladimir Oltean const struct dsa_switch *ds = dp->ds; 313cf2d45f5SVladimir Oltean 314cf2d45f5SVladimir Oltean if (ds->vlan_filtering_is_global) 315cf2d45f5SVladimir Oltean return ds->vlan_filtering; 316cf2d45f5SVladimir Oltean else 317cf2d45f5SVladimir Oltean return dp->vlan_filtering; 318cf2d45f5SVladimir Oltean } 319cf2d45f5SVladimir Oltean 3202bedde1aSArkadi Sharshevsky typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid, 3212bedde1aSArkadi Sharshevsky bool is_static, void *data); 3229d490b4eSVivien Didelot struct dsa_switch_ops { 3235ed4e3ebSFlorian Fainelli enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds, 3245ed4e3ebSFlorian Fainelli int port); 3257b314362SAndrew Lunn 326c8f0b869SBen Hutchings int (*setup)(struct dsa_switch *ds); 3276819563eSFlorian Fainelli u32 (*get_phy_flags)(struct dsa_switch *ds, int port); 328c8f0b869SBen Hutchings 329c8f0b869SBen Hutchings /* 330c8f0b869SBen Hutchings * Access to the switch's PHY registers. 331c8f0b869SBen Hutchings */ 332c8f0b869SBen Hutchings int (*phy_read)(struct dsa_switch *ds, int port, int regnum); 333c8f0b869SBen Hutchings int (*phy_write)(struct dsa_switch *ds, int port, 334c8f0b869SBen Hutchings int regnum, u16 val); 335c8f0b869SBen Hutchings 336c8f0b869SBen Hutchings /* 337ec9436baSFlorian Fainelli * Link state adjustment (called from libphy) 338ec9436baSFlorian Fainelli */ 339ec9436baSFlorian Fainelli void (*adjust_link)(struct dsa_switch *ds, int port, 340ec9436baSFlorian Fainelli struct phy_device *phydev); 341ce31b31cSFlorian Fainelli void (*fixed_link_update)(struct dsa_switch *ds, int port, 342ce31b31cSFlorian Fainelli struct fixed_phy_status *st); 343ec9436baSFlorian Fainelli 344ec9436baSFlorian Fainelli /* 34511d8f3ddSFlorian Fainelli * PHYLINK integration 34611d8f3ddSFlorian Fainelli */ 34711d8f3ddSFlorian Fainelli void (*phylink_validate)(struct dsa_switch *ds, int port, 34811d8f3ddSFlorian Fainelli unsigned long *supported, 34911d8f3ddSFlorian Fainelli struct phylink_link_state *state); 35011d8f3ddSFlorian Fainelli int (*phylink_mac_link_state)(struct dsa_switch *ds, int port, 35111d8f3ddSFlorian Fainelli struct phylink_link_state *state); 35211d8f3ddSFlorian Fainelli void (*phylink_mac_config)(struct dsa_switch *ds, int port, 35311d8f3ddSFlorian Fainelli unsigned int mode, 35411d8f3ddSFlorian Fainelli const struct phylink_link_state *state); 35511d8f3ddSFlorian Fainelli void (*phylink_mac_an_restart)(struct dsa_switch *ds, int port); 35611d8f3ddSFlorian Fainelli void (*phylink_mac_link_down)(struct dsa_switch *ds, int port, 35711d8f3ddSFlorian Fainelli unsigned int mode, 35811d8f3ddSFlorian Fainelli phy_interface_t interface); 35911d8f3ddSFlorian Fainelli void (*phylink_mac_link_up)(struct dsa_switch *ds, int port, 36011d8f3ddSFlorian Fainelli unsigned int mode, 36111d8f3ddSFlorian Fainelli phy_interface_t interface, 36211d8f3ddSFlorian Fainelli struct phy_device *phydev); 36311d8f3ddSFlorian Fainelli void (*phylink_fixed_state)(struct dsa_switch *ds, int port, 36411d8f3ddSFlorian Fainelli struct phylink_link_state *state); 36511d8f3ddSFlorian Fainelli /* 366c8f0b869SBen Hutchings * ethtool hardware statistics. 367c8f0b869SBen Hutchings */ 36889f09048SFlorian Fainelli void (*get_strings)(struct dsa_switch *ds, int port, 36989f09048SFlorian Fainelli u32 stringset, uint8_t *data); 370c8f0b869SBen Hutchings void (*get_ethtool_stats)(struct dsa_switch *ds, 371c8f0b869SBen Hutchings int port, uint64_t *data); 37289f09048SFlorian Fainelli int (*get_sset_count)(struct dsa_switch *ds, int port, int sset); 373cf963573SFlorian Fainelli void (*get_ethtool_phy_stats)(struct dsa_switch *ds, 374cf963573SFlorian Fainelli int port, uint64_t *data); 37524462549SFlorian Fainelli 37624462549SFlorian Fainelli /* 37719e57c4eSFlorian Fainelli * ethtool Wake-on-LAN 37819e57c4eSFlorian Fainelli */ 37919e57c4eSFlorian Fainelli void (*get_wol)(struct dsa_switch *ds, int port, 38019e57c4eSFlorian Fainelli struct ethtool_wolinfo *w); 38119e57c4eSFlorian Fainelli int (*set_wol)(struct dsa_switch *ds, int port, 38219e57c4eSFlorian Fainelli struct ethtool_wolinfo *w); 38319e57c4eSFlorian Fainelli 38419e57c4eSFlorian Fainelli /* 3850336369dSBrandon Streiff * ethtool timestamp info 3860336369dSBrandon Streiff */ 3870336369dSBrandon Streiff int (*get_ts_info)(struct dsa_switch *ds, int port, 3880336369dSBrandon Streiff struct ethtool_ts_info *ts); 3890336369dSBrandon Streiff 3900336369dSBrandon Streiff /* 39124462549SFlorian Fainelli * Suspend and resume 39224462549SFlorian Fainelli */ 39324462549SFlorian Fainelli int (*suspend)(struct dsa_switch *ds); 39424462549SFlorian Fainelli int (*resume)(struct dsa_switch *ds); 395b2f2af21SFlorian Fainelli 396b2f2af21SFlorian Fainelli /* 397b2f2af21SFlorian Fainelli * Port enable/disable 398b2f2af21SFlorian Fainelli */ 399b2f2af21SFlorian Fainelli int (*port_enable)(struct dsa_switch *ds, int port, 400b2f2af21SFlorian Fainelli struct phy_device *phy); 40175104db0SAndrew Lunn void (*port_disable)(struct dsa_switch *ds, int port); 4027905288fSFlorian Fainelli 4037905288fSFlorian Fainelli /* 40408f50061SVivien Didelot * Port's MAC EEE settings 4057905288fSFlorian Fainelli */ 40608f50061SVivien Didelot int (*set_mac_eee)(struct dsa_switch *ds, int port, 4077905288fSFlorian Fainelli struct ethtool_eee *e); 40808f50061SVivien Didelot int (*get_mac_eee)(struct dsa_switch *ds, int port, 4097905288fSFlorian Fainelli struct ethtool_eee *e); 41051579c3fSGuenter Roeck 4116793abb4SGuenter Roeck /* EEPROM access */ 4126793abb4SGuenter Roeck int (*get_eeprom_len)(struct dsa_switch *ds); 4136793abb4SGuenter Roeck int (*get_eeprom)(struct dsa_switch *ds, 4146793abb4SGuenter Roeck struct ethtool_eeprom *eeprom, u8 *data); 4156793abb4SGuenter Roeck int (*set_eeprom)(struct dsa_switch *ds, 4166793abb4SGuenter Roeck struct ethtool_eeprom *eeprom, u8 *data); 4173d762a0fSGuenter Roeck 4183d762a0fSGuenter Roeck /* 4193d762a0fSGuenter Roeck * Register access. 4203d762a0fSGuenter Roeck */ 4213d762a0fSGuenter Roeck int (*get_regs_len)(struct dsa_switch *ds, int port); 4223d762a0fSGuenter Roeck void (*get_regs)(struct dsa_switch *ds, int port, 4233d762a0fSGuenter Roeck struct ethtool_regs *regs, void *p); 424b73adef6SFlorian Fainelli 425b73adef6SFlorian Fainelli /* 426b73adef6SFlorian Fainelli * Bridge integration 427b73adef6SFlorian Fainelli */ 42834a79f63SVivien Didelot int (*set_ageing_time)(struct dsa_switch *ds, unsigned int msecs); 42971327a4eSVivien Didelot int (*port_bridge_join)(struct dsa_switch *ds, int port, 430a6692754SVivien Didelot struct net_device *bridge); 431f123f2fbSVivien Didelot void (*port_bridge_leave)(struct dsa_switch *ds, int port, 432f123f2fbSVivien Didelot struct net_device *bridge); 43343c44a9fSVivien Didelot void (*port_stp_state_set)(struct dsa_switch *ds, int port, 434b73adef6SFlorian Fainelli u8 state); 435732f794cSVivien Didelot void (*port_fast_age)(struct dsa_switch *ds, int port); 43657652796SRussell King int (*port_egress_floods)(struct dsa_switch *ds, int port, 43757652796SRussell King bool unicast, bool multicast); 4382a778e1bSVivien Didelot 4392a778e1bSVivien Didelot /* 44011149536SVivien Didelot * VLAN support 44111149536SVivien Didelot */ 442fb2dabadSVivien Didelot int (*port_vlan_filtering)(struct dsa_switch *ds, int port, 443fb2dabadSVivien Didelot bool vlan_filtering); 44476e398a6SVivien Didelot int (*port_vlan_prepare)(struct dsa_switch *ds, int port, 44580e02360SVivien Didelot const struct switchdev_obj_port_vlan *vlan); 4464d5770b3SVivien Didelot void (*port_vlan_add)(struct dsa_switch *ds, int port, 44780e02360SVivien Didelot const struct switchdev_obj_port_vlan *vlan); 44876e398a6SVivien Didelot int (*port_vlan_del)(struct dsa_switch *ds, int port, 44976e398a6SVivien Didelot const struct switchdev_obj_port_vlan *vlan); 45011149536SVivien Didelot /* 4512a778e1bSVivien Didelot * Forwarding database 4522a778e1bSVivien Didelot */ 4531b6dd556SArkadi Sharshevsky int (*port_fdb_add)(struct dsa_switch *ds, int port, 4546c2c1dcbSArkadi Sharshevsky const unsigned char *addr, u16 vid); 4552a778e1bSVivien Didelot int (*port_fdb_del)(struct dsa_switch *ds, int port, 4566c2c1dcbSArkadi Sharshevsky const unsigned char *addr, u16 vid); 457ea70ba98SVivien Didelot int (*port_fdb_dump)(struct dsa_switch *ds, int port, 4582bedde1aSArkadi Sharshevsky dsa_fdb_dump_cb_t *cb, void *data); 4598df30255SVivien Didelot 4608df30255SVivien Didelot /* 4618df30255SVivien Didelot * Multicast database 4628df30255SVivien Didelot */ 4638df30255SVivien Didelot int (*port_mdb_prepare)(struct dsa_switch *ds, int port, 4643709aadcSVivien Didelot const struct switchdev_obj_port_mdb *mdb); 4658df30255SVivien Didelot void (*port_mdb_add)(struct dsa_switch *ds, int port, 4663709aadcSVivien Didelot const struct switchdev_obj_port_mdb *mdb); 4678df30255SVivien Didelot int (*port_mdb_del)(struct dsa_switch *ds, int port, 4688df30255SVivien Didelot const struct switchdev_obj_port_mdb *mdb); 469bf9f2648SFlorian Fainelli /* 470bf9f2648SFlorian Fainelli * RXNFC 471bf9f2648SFlorian Fainelli */ 472bf9f2648SFlorian Fainelli int (*get_rxnfc)(struct dsa_switch *ds, int port, 473bf9f2648SFlorian Fainelli struct ethtool_rxnfc *nfc, u32 *rule_locs); 474bf9f2648SFlorian Fainelli int (*set_rxnfc)(struct dsa_switch *ds, int port, 475bf9f2648SFlorian Fainelli struct ethtool_rxnfc *nfc); 476f50f2127SFlorian Fainelli 477f50f2127SFlorian Fainelli /* 478f50f2127SFlorian Fainelli * TC integration 479f50f2127SFlorian Fainelli */ 480f50f2127SFlorian Fainelli int (*port_mirror_add)(struct dsa_switch *ds, int port, 481f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry *mirror, 482f50f2127SFlorian Fainelli bool ingress); 483f50f2127SFlorian Fainelli void (*port_mirror_del)(struct dsa_switch *ds, int port, 484f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry *mirror); 48540ef2c93SVivien Didelot 48640ef2c93SVivien Didelot /* 48740ef2c93SVivien Didelot * Cross-chip operations 48840ef2c93SVivien Didelot */ 48940ef2c93SVivien Didelot int (*crosschip_bridge_join)(struct dsa_switch *ds, int sw_index, 49040ef2c93SVivien Didelot int port, struct net_device *br); 49140ef2c93SVivien Didelot void (*crosschip_bridge_leave)(struct dsa_switch *ds, int sw_index, 49240ef2c93SVivien Didelot int port, struct net_device *br); 4930336369dSBrandon Streiff 4940336369dSBrandon Streiff /* 4950336369dSBrandon Streiff * PTP functionality 4960336369dSBrandon Streiff */ 4970336369dSBrandon Streiff int (*port_hwtstamp_get)(struct dsa_switch *ds, int port, 4980336369dSBrandon Streiff struct ifreq *ifr); 4990336369dSBrandon Streiff int (*port_hwtstamp_set)(struct dsa_switch *ds, int port, 5000336369dSBrandon Streiff struct ifreq *ifr); 50190af1059SBrandon Streiff bool (*port_txtstamp)(struct dsa_switch *ds, int port, 50290af1059SBrandon Streiff struct sk_buff *clone, unsigned int type); 50390af1059SBrandon Streiff bool (*port_rxtstamp)(struct dsa_switch *ds, int port, 50490af1059SBrandon Streiff struct sk_buff *skb, unsigned int type); 505c8f0b869SBen Hutchings }; 506c8f0b869SBen Hutchings 507ab3d408dSFlorian Fainelli struct dsa_switch_driver { 508ab3d408dSFlorian Fainelli struct list_head list; 509a82f67afSFlorian Fainelli const struct dsa_switch_ops *ops; 510ab3d408dSFlorian Fainelli }; 511ab3d408dSFlorian Fainelli 51214b89f36SFlorian Fainelli struct net_device *dsa_dev_to_net_device(struct device *dev); 513c8f0b869SBen Hutchings 51473a7ece8SVivien Didelot /* Keep inline for faster access in hot path */ 515c6e970a0SAndrew Lunn static inline bool netdev_uses_dsa(struct net_device *dev) 516c6e970a0SAndrew Lunn { 517c6e970a0SAndrew Lunn #if IS_ENABLED(CONFIG_NET_DSA) 518717ffbfbSVivien Didelot return dev->dsa_ptr && dev->dsa_ptr->rcv; 519c6e970a0SAndrew Lunn #endif 520c6e970a0SAndrew Lunn return false; 521c6e970a0SAndrew Lunn } 522c6e970a0SAndrew Lunn 523a0c02161SVivien Didelot struct dsa_switch *dsa_switch_alloc(struct device *dev, size_t n); 52483c0afaeSAndrew Lunn void dsa_unregister_switch(struct dsa_switch *ds); 52523c9ee49SVivien Didelot int dsa_register_switch(struct dsa_switch *ds); 526ea825e70SFlorian Fainelli #ifdef CONFIG_PM_SLEEP 527ea825e70SFlorian Fainelli int dsa_switch_suspend(struct dsa_switch *ds); 528ea825e70SFlorian Fainelli int dsa_switch_resume(struct dsa_switch *ds); 529ea825e70SFlorian Fainelli #else 530ea825e70SFlorian Fainelli static inline int dsa_switch_suspend(struct dsa_switch *ds) 531ea825e70SFlorian Fainelli { 532ea825e70SFlorian Fainelli return 0; 533ea825e70SFlorian Fainelli } 534ea825e70SFlorian Fainelli static inline int dsa_switch_resume(struct dsa_switch *ds) 535ea825e70SFlorian Fainelli { 536ea825e70SFlorian Fainelli return 0; 537ea825e70SFlorian Fainelli } 538ea825e70SFlorian Fainelli #endif /* CONFIG_PM_SLEEP */ 539ea825e70SFlorian Fainelli 54060724d4bSFlorian Fainelli enum dsa_notifier_type { 54160724d4bSFlorian Fainelli DSA_PORT_REGISTER, 54260724d4bSFlorian Fainelli DSA_PORT_UNREGISTER, 54360724d4bSFlorian Fainelli }; 54460724d4bSFlorian Fainelli 54560724d4bSFlorian Fainelli struct dsa_notifier_info { 54660724d4bSFlorian Fainelli struct net_device *dev; 54760724d4bSFlorian Fainelli }; 54860724d4bSFlorian Fainelli 54960724d4bSFlorian Fainelli struct dsa_notifier_register_info { 55060724d4bSFlorian Fainelli struct dsa_notifier_info info; /* must be first */ 55160724d4bSFlorian Fainelli struct net_device *master; 55260724d4bSFlorian Fainelli unsigned int port_number; 55360724d4bSFlorian Fainelli unsigned int switch_number; 55460724d4bSFlorian Fainelli }; 55560724d4bSFlorian Fainelli 55660724d4bSFlorian Fainelli static inline struct net_device * 55760724d4bSFlorian Fainelli dsa_notifier_info_to_dev(const struct dsa_notifier_info *info) 55860724d4bSFlorian Fainelli { 55960724d4bSFlorian Fainelli return info->dev; 56060724d4bSFlorian Fainelli } 56160724d4bSFlorian Fainelli 56260724d4bSFlorian Fainelli #if IS_ENABLED(CONFIG_NET_DSA) 56360724d4bSFlorian Fainelli int register_dsa_notifier(struct notifier_block *nb); 56460724d4bSFlorian Fainelli int unregister_dsa_notifier(struct notifier_block *nb); 56560724d4bSFlorian Fainelli int call_dsa_notifiers(unsigned long val, struct net_device *dev, 56660724d4bSFlorian Fainelli struct dsa_notifier_info *info); 56760724d4bSFlorian Fainelli #else 56860724d4bSFlorian Fainelli static inline int register_dsa_notifier(struct notifier_block *nb) 56960724d4bSFlorian Fainelli { 57060724d4bSFlorian Fainelli return 0; 57160724d4bSFlorian Fainelli } 57260724d4bSFlorian Fainelli 57360724d4bSFlorian Fainelli static inline int unregister_dsa_notifier(struct notifier_block *nb) 57460724d4bSFlorian Fainelli { 57560724d4bSFlorian Fainelli return 0; 57660724d4bSFlorian Fainelli } 57760724d4bSFlorian Fainelli 57860724d4bSFlorian Fainelli static inline int call_dsa_notifiers(unsigned long val, struct net_device *dev, 57960724d4bSFlorian Fainelli struct dsa_notifier_info *info) 58060724d4bSFlorian Fainelli { 58160724d4bSFlorian Fainelli return NOTIFY_DONE; 58260724d4bSFlorian Fainelli } 58360724d4bSFlorian Fainelli #endif 58460724d4bSFlorian Fainelli 5850a5f14ceSFlorian Fainelli /* Broadcom tag specific helpers to insert and extract queue/port number */ 5860a5f14ceSFlorian Fainelli #define BRCM_TAG_SET_PORT_QUEUE(p, q) ((p) << 8 | q) 5870a5f14ceSFlorian Fainelli #define BRCM_TAG_GET_PORT(v) ((v) >> 8) 5880a5f14ceSFlorian Fainelli #define BRCM_TAG_GET_QUEUE(v) ((v) & 0xff) 5890a5f14ceSFlorian Fainelli 590cf963573SFlorian Fainelli 591cf963573SFlorian Fainelli int dsa_port_get_phy_strings(struct dsa_port *dp, uint8_t *data); 592cf963573SFlorian Fainelli int dsa_port_get_ethtool_phy_stats(struct dsa_port *dp, uint64_t *data); 593cf963573SFlorian Fainelli int dsa_port_get_phy_sset_count(struct dsa_port *dp); 59411d8f3ddSFlorian Fainelli void dsa_port_phylink_mac_change(struct dsa_switch *ds, int port, bool up); 595cf963573SFlorian Fainelli 596d3b8c049SAndrew Lunn struct dsa_tag_driver { 597d3b8c049SAndrew Lunn const struct dsa_device_ops *ops; 598d3b8c049SAndrew Lunn struct list_head list; 599d3b8c049SAndrew Lunn struct module *owner; 600d3b8c049SAndrew Lunn }; 601d3b8c049SAndrew Lunn 602d3b8c049SAndrew Lunn void dsa_tag_drivers_register(struct dsa_tag_driver *dsa_tag_driver_array[], 603d3b8c049SAndrew Lunn unsigned int count, 604d3b8c049SAndrew Lunn struct module *owner); 605d3b8c049SAndrew Lunn void dsa_tag_drivers_unregister(struct dsa_tag_driver *dsa_tag_driver_array[], 606d3b8c049SAndrew Lunn unsigned int count); 607d3b8c049SAndrew Lunn 608d3b8c049SAndrew Lunn #define dsa_tag_driver_module_drivers(__dsa_tag_drivers_array, __count) \ 609d3b8c049SAndrew Lunn static int __init dsa_tag_driver_module_init(void) \ 610d3b8c049SAndrew Lunn { \ 611d3b8c049SAndrew Lunn dsa_tag_drivers_register(__dsa_tag_drivers_array, __count, \ 612d3b8c049SAndrew Lunn THIS_MODULE); \ 613d3b8c049SAndrew Lunn return 0; \ 614d3b8c049SAndrew Lunn } \ 615d3b8c049SAndrew Lunn module_init(dsa_tag_driver_module_init); \ 616d3b8c049SAndrew Lunn \ 617d3b8c049SAndrew Lunn static void __exit dsa_tag_driver_module_exit(void) \ 618d3b8c049SAndrew Lunn { \ 619d3b8c049SAndrew Lunn dsa_tag_drivers_unregister(__dsa_tag_drivers_array, __count); \ 620d3b8c049SAndrew Lunn } \ 621d3b8c049SAndrew Lunn module_exit(dsa_tag_driver_module_exit) 622d3b8c049SAndrew Lunn 623d3b8c049SAndrew Lunn /** 624d3b8c049SAndrew Lunn * module_dsa_tag_drivers() - Helper macro for registering DSA tag 625d3b8c049SAndrew Lunn * drivers 626d3b8c049SAndrew Lunn * @__ops_array: Array of tag driver strucutres 627d3b8c049SAndrew Lunn * 628d3b8c049SAndrew Lunn * Helper macro for DSA tag drivers which do not do anything special 629d3b8c049SAndrew Lunn * in module init/exit. Each module may only use this macro once, and 630d3b8c049SAndrew Lunn * calling it replaces module_init() and module_exit(). 631d3b8c049SAndrew Lunn */ 632d3b8c049SAndrew Lunn #define module_dsa_tag_drivers(__ops_array) \ 633d3b8c049SAndrew Lunn dsa_tag_driver_module_drivers(__ops_array, ARRAY_SIZE(__ops_array)) 634d3b8c049SAndrew Lunn 635d3b8c049SAndrew Lunn #define DSA_TAG_DRIVER_NAME(__ops) dsa_tag_driver ## _ ## __ops 636d3b8c049SAndrew Lunn 637d3b8c049SAndrew Lunn /* Create a static structure we can build a linked list of dsa_tag 638d3b8c049SAndrew Lunn * drivers 639d3b8c049SAndrew Lunn */ 640d3b8c049SAndrew Lunn #define DSA_TAG_DRIVER(__ops) \ 641d3b8c049SAndrew Lunn static struct dsa_tag_driver DSA_TAG_DRIVER_NAME(__ops) = { \ 642d3b8c049SAndrew Lunn .ops = &__ops, \ 643d3b8c049SAndrew Lunn } 644d3b8c049SAndrew Lunn 645d3b8c049SAndrew Lunn /** 646d3b8c049SAndrew Lunn * module_dsa_tag_driver() - Helper macro for registering a single DSA tag 647d3b8c049SAndrew Lunn * driver 648d3b8c049SAndrew Lunn * @__ops: Single tag driver structures 649d3b8c049SAndrew Lunn * 650d3b8c049SAndrew Lunn * Helper macro for DSA tag drivers which do not do anything special 651d3b8c049SAndrew Lunn * in module init/exit. Each module may only use this macro once, and 652d3b8c049SAndrew Lunn * calling it replaces module_init() and module_exit(). 653d3b8c049SAndrew Lunn */ 654d3b8c049SAndrew Lunn #define module_dsa_tag_driver(__ops) \ 655d3b8c049SAndrew Lunn DSA_TAG_DRIVER(__ops); \ 656d3b8c049SAndrew Lunn \ 657d3b8c049SAndrew Lunn static struct dsa_tag_driver *dsa_tag_driver_array[] = { \ 658d3b8c049SAndrew Lunn &DSA_TAG_DRIVER_NAME(__ops) \ 659d3b8c049SAndrew Lunn }; \ 660d3b8c049SAndrew Lunn module_dsa_tag_drivers(dsa_tag_driver_array) 66191da11f8SLennert Buytenhek #endif 662d3b8c049SAndrew Lunn 663