12874c5fdSThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-or-later */ 291da11f8SLennert Buytenhek /* 391da11f8SLennert Buytenhek * include/net/dsa.h - Driver for Distributed Switch Architecture switch chips 4e84665c9SLennert Buytenhek * Copyright (c) 2008-2009 Marvell Semiconductor 591da11f8SLennert Buytenhek */ 691da11f8SLennert Buytenhek 791da11f8SLennert Buytenhek #ifndef __LINUX_NET_DSA_H 891da11f8SLennert Buytenhek #define __LINUX_NET_DSA_H 991da11f8SLennert Buytenhek 104d56a29fSRussell King #include <linux/if.h> 11ea1f51beSAxel Lin #include <linux/if_ether.h> 12c8f0b869SBen Hutchings #include <linux/list.h> 13f515f192SVivien Didelot #include <linux/notifier.h> 14cf50dcc2SBen Hutchings #include <linux/timer.h> 15cf50dcc2SBen Hutchings #include <linux/workqueue.h> 16fa981d9aSFlorian Fainelli #include <linux/of.h> 17a2820543SFlorian Fainelli #include <linux/ethtool.h> 180336369dSBrandon Streiff #include <linux/net_tstamp.h> 1911d8f3ddSFlorian Fainelli #include <linux/phy.h> 20ecfc9372SFlorian Fainelli #include <linux/platform_data/dsa.h> 2144cc27e4SIoana Ciornei #include <linux/phylink.h> 2296567d5dSAndrew Lunn #include <net/devlink.h> 23f0c24ccfSVivien Didelot #include <net/switchdev.h> 24cf50dcc2SBen Hutchings 25f50f2127SFlorian Fainelli struct tc_action; 264d56a29fSRussell King struct phy_device; 274d56a29fSRussell King struct fixed_phy_status; 2811d8f3ddSFlorian Fainelli struct phylink_link_state; 29f50f2127SFlorian Fainelli 300b42f033SAndrew Lunn #define DSA_TAG_PROTO_NONE_VALUE 0 310b42f033SAndrew Lunn #define DSA_TAG_PROTO_BRCM_VALUE 1 320b42f033SAndrew Lunn #define DSA_TAG_PROTO_BRCM_PREPEND_VALUE 2 330b42f033SAndrew Lunn #define DSA_TAG_PROTO_DSA_VALUE 3 340b42f033SAndrew Lunn #define DSA_TAG_PROTO_EDSA_VALUE 4 350b42f033SAndrew Lunn #define DSA_TAG_PROTO_GSWIP_VALUE 5 360b42f033SAndrew Lunn #define DSA_TAG_PROTO_KSZ9477_VALUE 6 370b42f033SAndrew Lunn #define DSA_TAG_PROTO_KSZ9893_VALUE 7 380b42f033SAndrew Lunn #define DSA_TAG_PROTO_LAN9303_VALUE 8 390b42f033SAndrew Lunn #define DSA_TAG_PROTO_MTK_VALUE 9 400b42f033SAndrew Lunn #define DSA_TAG_PROTO_QCA_VALUE 10 410b42f033SAndrew Lunn #define DSA_TAG_PROTO_TRAILER_VALUE 11 42f9bbe447SVladimir Oltean #define DSA_TAG_PROTO_8021Q_VALUE 12 43227d07a0SVladimir Oltean #define DSA_TAG_PROTO_SJA1105_VALUE 13 44016e43a2STristram Ha #define DSA_TAG_PROTO_KSZ8795_VALUE 14 458dce89aaSVladimir Oltean #define DSA_TAG_PROTO_OCELOT_VALUE 15 4648fda74fSOleksij Rempel #define DSA_TAG_PROTO_AR9331_VALUE 16 47efd7fe68SLinus Walleij #define DSA_TAG_PROTO_RTL4_A_VALUE 17 4801ef09caSKurt Kanzenbach #define DSA_TAG_PROTO_HELLCREEK_VALUE 18 4954a52823SGeorge McCollister #define DSA_TAG_PROTO_XRS700X_VALUE 19 507c83a7c5SVladimir Oltean #define DSA_TAG_PROTO_OCELOT_8021Q_VALUE 20 517c4bb540SVladimir Oltean #define DSA_TAG_PROTO_SEVILLE_VALUE 21 52964dbf18SÁlvaro Fernández Rojas #define DSA_TAG_PROTO_BRCM_LEGACY_VALUE 22 534913b8ebSVladimir Oltean #define DSA_TAG_PROTO_SJA1110_VALUE 23 541521d5adSAlvin Šipraga #define DSA_TAG_PROTO_RTL8_4_VALUE 24 550b42f033SAndrew Lunn 56ac7a04c3SFlorian Fainelli enum dsa_tag_protocol { 570b42f033SAndrew Lunn DSA_TAG_PROTO_NONE = DSA_TAG_PROTO_NONE_VALUE, 580b42f033SAndrew Lunn DSA_TAG_PROTO_BRCM = DSA_TAG_PROTO_BRCM_VALUE, 59964dbf18SÁlvaro Fernández Rojas DSA_TAG_PROTO_BRCM_LEGACY = DSA_TAG_PROTO_BRCM_LEGACY_VALUE, 600b42f033SAndrew Lunn DSA_TAG_PROTO_BRCM_PREPEND = DSA_TAG_PROTO_BRCM_PREPEND_VALUE, 610b42f033SAndrew Lunn DSA_TAG_PROTO_DSA = DSA_TAG_PROTO_DSA_VALUE, 620b42f033SAndrew Lunn DSA_TAG_PROTO_EDSA = DSA_TAG_PROTO_EDSA_VALUE, 630b42f033SAndrew Lunn DSA_TAG_PROTO_GSWIP = DSA_TAG_PROTO_GSWIP_VALUE, 640b42f033SAndrew Lunn DSA_TAG_PROTO_KSZ9477 = DSA_TAG_PROTO_KSZ9477_VALUE, 650b42f033SAndrew Lunn DSA_TAG_PROTO_KSZ9893 = DSA_TAG_PROTO_KSZ9893_VALUE, 660b42f033SAndrew Lunn DSA_TAG_PROTO_LAN9303 = DSA_TAG_PROTO_LAN9303_VALUE, 670b42f033SAndrew Lunn DSA_TAG_PROTO_MTK = DSA_TAG_PROTO_MTK_VALUE, 680b42f033SAndrew Lunn DSA_TAG_PROTO_QCA = DSA_TAG_PROTO_QCA_VALUE, 690b42f033SAndrew Lunn DSA_TAG_PROTO_TRAILER = DSA_TAG_PROTO_TRAILER_VALUE, 70f9bbe447SVladimir Oltean DSA_TAG_PROTO_8021Q = DSA_TAG_PROTO_8021Q_VALUE, 71227d07a0SVladimir Oltean DSA_TAG_PROTO_SJA1105 = DSA_TAG_PROTO_SJA1105_VALUE, 72016e43a2STristram Ha DSA_TAG_PROTO_KSZ8795 = DSA_TAG_PROTO_KSZ8795_VALUE, 738dce89aaSVladimir Oltean DSA_TAG_PROTO_OCELOT = DSA_TAG_PROTO_OCELOT_VALUE, 7448fda74fSOleksij Rempel DSA_TAG_PROTO_AR9331 = DSA_TAG_PROTO_AR9331_VALUE, 75efd7fe68SLinus Walleij DSA_TAG_PROTO_RTL4_A = DSA_TAG_PROTO_RTL4_A_VALUE, 7601ef09caSKurt Kanzenbach DSA_TAG_PROTO_HELLCREEK = DSA_TAG_PROTO_HELLCREEK_VALUE, 7754a52823SGeorge McCollister DSA_TAG_PROTO_XRS700X = DSA_TAG_PROTO_XRS700X_VALUE, 787c83a7c5SVladimir Oltean DSA_TAG_PROTO_OCELOT_8021Q = DSA_TAG_PROTO_OCELOT_8021Q_VALUE, 797c4bb540SVladimir Oltean DSA_TAG_PROTO_SEVILLE = DSA_TAG_PROTO_SEVILLE_VALUE, 804913b8ebSVladimir Oltean DSA_TAG_PROTO_SJA1110 = DSA_TAG_PROTO_SJA1110_VALUE, 811521d5adSAlvin Šipraga DSA_TAG_PROTO_RTL8_4 = DSA_TAG_PROTO_RTL8_4_VALUE, 82ac7a04c3SFlorian Fainelli }; 835037d532SFlorian Fainelli 8490af1059SBrandon Streiff struct dsa_switch; 853e8a72d1SFlorian Fainelli 8668277a2cSJohn Crispin struct dsa_device_ops { 8768277a2cSJohn Crispin struct sk_buff *(*xmit)(struct sk_buff *skb, struct net_device *dev); 8829a097b7SVladimir Oltean struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev); 892e8cb1b3SVladimir Oltean void (*flow_dissect)(const struct sk_buff *skb, __be16 *proto, 90598a9680SJohn Crispin int *offset); 917f297314SVladimir Oltean int (*connect)(struct dsa_switch *ds); 927f297314SVladimir Oltean void (*disconnect)(struct dsa_switch *ds); 934e500251SVladimir Oltean unsigned int needed_headroom; 944e500251SVladimir Oltean unsigned int needed_tailroom; 95875138f8SAndrew Lunn const char *name; 96056eed2fSAndrew Lunn enum dsa_tag_protocol proto; 97c3975400SVladimir Oltean /* Some tagging protocols either mangle or shift the destination MAC 98c3975400SVladimir Oltean * address, in which case the DSA master would drop packets on ingress 99c3975400SVladimir Oltean * if what it understands out of the destination MAC address is not in 100c3975400SVladimir Oltean * its RX filter. 101c3975400SVladimir Oltean */ 102c3975400SVladimir Oltean bool promisc_on_master; 10368277a2cSJohn Crispin }; 10468277a2cSJohn Crispin 1054cfab356SFlorian Fainelli /* This structure defines the control interfaces that are overlayed by the 1064cfab356SFlorian Fainelli * DSA layer on top of the DSA CPU/management net_device instance. This is 1074cfab356SFlorian Fainelli * used by the core net_device layer while calling various net_device_ops 1084cfab356SFlorian Fainelli * function pointers. 1094cfab356SFlorian Fainelli */ 1104cfab356SFlorian Fainelli struct dsa_netdevice_ops { 111a7605370SArnd Bergmann int (*ndo_eth_ioctl)(struct net_device *dev, struct ifreq *ifr, 1124cfab356SFlorian Fainelli int cmd); 1134cfab356SFlorian Fainelli }; 1144cfab356SFlorian Fainelli 1150b42f033SAndrew Lunn #define DSA_TAG_DRIVER_ALIAS "dsa_tag-" 1160b42f033SAndrew Lunn #define MODULE_ALIAS_DSA_TAG_DRIVER(__proto) \ 1170b42f033SAndrew Lunn MODULE_ALIAS(DSA_TAG_DRIVER_ALIAS __stringify(__proto##_VALUE)) 1180b42f033SAndrew Lunn 119cf50dcc2SBen Hutchings struct dsa_switch_tree { 12083c0afaeSAndrew Lunn struct list_head list; 12183c0afaeSAndrew Lunn 122b035c88cSVladimir Oltean /* List of switch ports */ 123b035c88cSVladimir Oltean struct list_head ports; 124b035c88cSVladimir Oltean 125f515f192SVivien Didelot /* Notifier chain for switch-wide events */ 126f515f192SVivien Didelot struct raw_notifier_head nh; 127f515f192SVivien Didelot 12883c0afaeSAndrew Lunn /* Tree identifier */ 12949463b7fSVivien Didelot unsigned int index; 13083c0afaeSAndrew Lunn 13183c0afaeSAndrew Lunn /* Number of switches attached to this tree */ 13283c0afaeSAndrew Lunn struct kref refcount; 13383c0afaeSAndrew Lunn 134b035c88cSVladimir Oltean /* Maps offloaded LAG netdevs to a zero-based linear ID for 135b035c88cSVladimir Oltean * drivers that need it. 136b035c88cSVladimir Oltean */ 137b035c88cSVladimir Oltean struct net_device **lags; 138b035c88cSVladimir Oltean 139357f203bSVladimir Oltean /* Tagging protocol operations */ 140357f203bSVladimir Oltean const struct dsa_device_ops *tag_ops; 141357f203bSVladimir Oltean 142deff7107STobias Waldekranz /* Default tagging protocol preferred by the switches in this 143deff7107STobias Waldekranz * tree. 144deff7107STobias Waldekranz */ 145deff7107STobias Waldekranz enum dsa_tag_protocol default_proto; 146deff7107STobias Waldekranz 1474b026e82SVladimir Oltean /* Has this tree been applied to the hardware? */ 1484b026e82SVladimir Oltean bool setup; 1494b026e82SVladimir Oltean 150cf50dcc2SBen Hutchings /* 151cf50dcc2SBen Hutchings * Configuration data for the platform device that owns 152cf50dcc2SBen Hutchings * this dsa switch tree instance. 153cf50dcc2SBen Hutchings */ 154cf50dcc2SBen Hutchings struct dsa_platform_data *pd; 155cf85d08fSLennert Buytenhek 156c5f51765SVivien Didelot /* List of DSA links composing the routing table */ 157c5f51765SVivien Didelot struct list_head rtable; 158058102a6STobias Waldekranz 159b035c88cSVladimir Oltean /* Length of "lags" array */ 160058102a6STobias Waldekranz unsigned int lags_len; 1615b22d366SVladimir Oltean 1625b22d366SVladimir Oltean /* Track the largest switch index within a tree */ 1635b22d366SVladimir Oltean unsigned int last_switch; 164cf50dcc2SBen Hutchings }; 165cf50dcc2SBen Hutchings 166058102a6STobias Waldekranz #define dsa_lags_foreach_id(_id, _dst) \ 167058102a6STobias Waldekranz for ((_id) = 0; (_id) < (_dst)->lags_len; (_id)++) \ 168058102a6STobias Waldekranz if ((_dst)->lags[(_id)]) 169058102a6STobias Waldekranz 170058102a6STobias Waldekranz #define dsa_lag_foreach_port(_dp, _dst, _lag) \ 171058102a6STobias Waldekranz list_for_each_entry((_dp), &(_dst)->ports, list) \ 172058102a6STobias Waldekranz if ((_dp)->lag_dev == (_lag)) 173058102a6STobias Waldekranz 17418596f50SGeorge McCollister #define dsa_hsr_foreach_port(_dp, _ds, _hsr) \ 17518596f50SGeorge McCollister list_for_each_entry((_dp), &(_ds)->dst->ports, list) \ 17618596f50SGeorge McCollister if ((_dp)->ds == (_ds) && (_dp)->hsr_dev == (_hsr)) 17718596f50SGeorge McCollister 178058102a6STobias Waldekranz static inline struct net_device *dsa_lag_dev(struct dsa_switch_tree *dst, 179058102a6STobias Waldekranz unsigned int id) 180058102a6STobias Waldekranz { 181058102a6STobias Waldekranz return dst->lags[id]; 182058102a6STobias Waldekranz } 183058102a6STobias Waldekranz 184058102a6STobias Waldekranz static inline int dsa_lag_id(struct dsa_switch_tree *dst, 185058102a6STobias Waldekranz struct net_device *lag) 186058102a6STobias Waldekranz { 187058102a6STobias Waldekranz unsigned int id; 188058102a6STobias Waldekranz 189058102a6STobias Waldekranz dsa_lags_foreach_id(id, dst) { 190058102a6STobias Waldekranz if (dsa_lag_dev(dst, id) == lag) 191058102a6STobias Waldekranz return id; 192058102a6STobias Waldekranz } 193058102a6STobias Waldekranz 194058102a6STobias Waldekranz return -ENODEV; 195058102a6STobias Waldekranz } 196058102a6STobias Waldekranz 19734297176SVladimir Oltean /* TC matchall action types */ 198f50f2127SFlorian Fainelli enum dsa_port_mall_action_type { 199f50f2127SFlorian Fainelli DSA_PORT_MALL_MIRROR, 20034297176SVladimir Oltean DSA_PORT_MALL_POLICER, 201f50f2127SFlorian Fainelli }; 202f50f2127SFlorian Fainelli 203f50f2127SFlorian Fainelli /* TC mirroring entry */ 204f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry { 205f50f2127SFlorian Fainelli u8 to_local_port; 206f50f2127SFlorian Fainelli bool ingress; 207f50f2127SFlorian Fainelli }; 208f50f2127SFlorian Fainelli 20934297176SVladimir Oltean /* TC port policer entry */ 21034297176SVladimir Oltean struct dsa_mall_policer_tc_entry { 2115f035af7SPo Liu u32 burst; 21234297176SVladimir Oltean u64 rate_bytes_per_sec; 21334297176SVladimir Oltean }; 21434297176SVladimir Oltean 215f50f2127SFlorian Fainelli /* TC matchall entry */ 216f50f2127SFlorian Fainelli struct dsa_mall_tc_entry { 217f50f2127SFlorian Fainelli struct list_head list; 218f50f2127SFlorian Fainelli unsigned long cookie; 219f50f2127SFlorian Fainelli enum dsa_port_mall_action_type type; 220f50f2127SFlorian Fainelli union { 221f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry mirror; 22234297176SVladimir Oltean struct dsa_mall_policer_tc_entry policer; 223f50f2127SFlorian Fainelli }; 224f50f2127SFlorian Fainelli }; 225f50f2127SFlorian Fainelli 226d3eed0e5SVladimir Oltean struct dsa_bridge { 227d3eed0e5SVladimir Oltean struct net_device *dev; 228d3eed0e5SVladimir Oltean unsigned int num; 229857fdd74SVladimir Oltean bool tx_fwd_offload; 230d3eed0e5SVladimir Oltean refcount_t refcount; 231d3eed0e5SVladimir Oltean }; 232f50f2127SFlorian Fainelli 233c8b09808SAndrew Lunn struct dsa_port { 234f8b8b1cdSVivien Didelot /* A CPU port is physically connected to a master device. 235f8b8b1cdSVivien Didelot * A user port exposed to userspace has a slave device. 236f8b8b1cdSVivien Didelot */ 237f8b8b1cdSVivien Didelot union { 238f8b8b1cdSVivien Didelot struct net_device *master; 239f8b8b1cdSVivien Didelot struct net_device *slave; 240f8b8b1cdSVivien Didelot }; 241f8b8b1cdSVivien Didelot 242357f203bSVladimir Oltean /* Copy of the tagging protocol operations, for quicker access 243357f203bSVladimir Oltean * in the data path. Valid only for the CPU ports. 244357f203bSVladimir Oltean */ 24515240248SVivien Didelot const struct dsa_device_ops *tag_ops; 24615240248SVivien Didelot 2473e41f93bSVivien Didelot /* Copies for faster access in master receive hot path */ 2483e41f93bSVivien Didelot struct dsa_switch_tree *dst; 24929a097b7SVladimir Oltean struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev); 2503e41f93bSVivien Didelot 25106251258SVladimir Oltean struct dsa_switch *ds; 25206251258SVladimir Oltean 25306251258SVladimir Oltean unsigned int index; 25406251258SVladimir Oltean 255057cad2cSVivien Didelot enum { 256057cad2cSVivien Didelot DSA_PORT_TYPE_UNUSED = 0, 257057cad2cSVivien Didelot DSA_PORT_TYPE_CPU, 258057cad2cSVivien Didelot DSA_PORT_TYPE_DSA, 259057cad2cSVivien Didelot DSA_PORT_TYPE_USER, 260057cad2cSVivien Didelot } type; 261057cad2cSVivien Didelot 26271e0bbdeSFlorian Fainelli const char *name; 26368b2d4a8SVivien Didelot struct dsa_port *cpu_dp; 26483216e39SMichael Walle u8 mac[ETH_ALEN]; 265b08db33dSVladimir Oltean 266b08db33dSVladimir Oltean u8 stp_state; 267b08db33dSVladimir Oltean 2681b26d364SVladimir Oltean /* Warning: the following bit fields are not atomic, and updating them 2691b26d364SVladimir Oltean * can only be done from code paths where concurrency is not possible 2701b26d364SVladimir Oltean * (probe time or under rtnl_lock). 2711b26d364SVladimir Oltean */ 27263cfc657SVladimir Oltean u8 vlan_filtering:1; 27363cfc657SVladimir Oltean 27463cfc657SVladimir Oltean /* Managed by DSA on user ports and by drivers on CPU and DSA ports */ 27563cfc657SVladimir Oltean u8 learning:1; 27663cfc657SVladimir Oltean 27763cfc657SVladimir Oltean u8 lag_tx_enabled:1; 27863cfc657SVladimir Oltean 27963cfc657SVladimir Oltean u8 devlink_port_setup:1; 28063cfc657SVladimir Oltean 281295ab96fSVladimir Oltean /* Master state bits, valid only on CPU ports */ 282295ab96fSVladimir Oltean u8 master_admin_up:1; 283295ab96fSVladimir Oltean u8 master_oper_up:1; 284295ab96fSVladimir Oltean 28563cfc657SVladimir Oltean u8 setup:1; 286bde82f38SVladimir Oltean 287189b0d93SAndrew Lunn struct device_node *dn; 28834a79f63SVivien Didelot unsigned int ageing_time; 289bde82f38SVladimir Oltean 290d3eed0e5SVladimir Oltean struct dsa_bridge *bridge; 29196567d5dSAndrew Lunn struct devlink_port devlink_port; 292aab9c406SFlorian Fainelli struct phylink *pl; 29344cc27e4SIoana Ciornei struct phylink_config pl_config; 294058102a6STobias Waldekranz struct net_device *lag_dev; 29518596f50SGeorge McCollister struct net_device *hsr_dev; 29697a69a0dSVladimir Oltean 297ab8ccae1SVivien Didelot struct list_head list; 298ab8ccae1SVivien Didelot 29967dbb9d4SFlorian Fainelli /* 30067dbb9d4SFlorian Fainelli * Original copy of the master netdev ethtool_ops 30167dbb9d4SFlorian Fainelli */ 30267dbb9d4SFlorian Fainelli const struct ethtool_ops *orig_ethtool_ops; 303da7b9e9bSFlorian Fainelli 304da7b9e9bSFlorian Fainelli /* 305da7b9e9bSFlorian Fainelli * Original copy of the master netdev net_device_ops 306da7b9e9bSFlorian Fainelli */ 3074cfab356SFlorian Fainelli const struct dsa_netdevice_ops *netdev_ops; 308fb35c60cSVivien Didelot 309161ca59dSVladimir Oltean /* List of MAC addresses that must be forwarded on this port. 310161ca59dSVladimir Oltean * These are only valid on CPU ports and DSA links. 311161ca59dSVladimir Oltean */ 312338a3a47SVladimir Oltean struct mutex addr_lists_lock; 3133f6e32f9SVladimir Oltean struct list_head fdbs; 314161ca59dSVladimir Oltean struct list_head mdbs; 315*134ef238SVladimir Oltean 316*134ef238SVladimir Oltean /* List of VLANs that CPU and DSA ports are members of. */ 317*134ef238SVladimir Oltean struct mutex vlans_lock; 318*134ef238SVladimir Oltean struct list_head vlans; 319c8b09808SAndrew Lunn }; 320c8b09808SAndrew Lunn 321c5f51765SVivien Didelot /* TODO: ideally DSA ports would have a single dp->link_dp member, 322c5f51765SVivien Didelot * and no dst->rtable nor this struct dsa_link would be needed, 323c5f51765SVivien Didelot * but this would require some more complex tree walking, 324c5f51765SVivien Didelot * so keep it stupid at the moment and list them all. 325c5f51765SVivien Didelot */ 326c5f51765SVivien Didelot struct dsa_link { 327c5f51765SVivien Didelot struct dsa_port *dp; 328c5f51765SVivien Didelot struct dsa_port *link_dp; 329c5f51765SVivien Didelot struct list_head list; 330c5f51765SVivien Didelot }; 331c5f51765SVivien Didelot 332161ca59dSVladimir Oltean struct dsa_mac_addr { 333161ca59dSVladimir Oltean unsigned char addr[ETH_ALEN]; 334161ca59dSVladimir Oltean u16 vid; 335161ca59dSVladimir Oltean refcount_t refcount; 336161ca59dSVladimir Oltean struct list_head list; 337161ca59dSVladimir Oltean }; 338161ca59dSVladimir Oltean 339*134ef238SVladimir Oltean struct dsa_vlan { 340*134ef238SVladimir Oltean u16 vid; 341*134ef238SVladimir Oltean refcount_t refcount; 342*134ef238SVladimir Oltean struct list_head list; 343*134ef238SVladimir Oltean }; 344*134ef238SVladimir Oltean 345c8f0b869SBen Hutchings struct dsa_switch { 346c33063d6SAndrew Lunn struct device *dev; 347c33063d6SAndrew Lunn 348c8f0b869SBen Hutchings /* 349c8f0b869SBen Hutchings * Parent switch tree, and switch index. 350c8f0b869SBen Hutchings */ 351c8f0b869SBen Hutchings struct dsa_switch_tree *dst; 35299feaafcSVivien Didelot unsigned int index; 353c8f0b869SBen Hutchings 3541b26d364SVladimir Oltean /* Warning: the following bit fields are not atomic, and updating them 3551b26d364SVladimir Oltean * can only be done from code paths where concurrency is not possible 3561b26d364SVladimir Oltean * (probe time or under rtnl_lock). 3571b26d364SVladimir Oltean */ 35863cfc657SVladimir Oltean u32 setup:1; 35963cfc657SVladimir Oltean 36063cfc657SVladimir Oltean /* Disallow bridge core from requesting different VLAN awareness 36163cfc657SVladimir Oltean * settings on ports if not hardware-supported 3627787ff77SVladimir Oltean */ 36363cfc657SVladimir Oltean u32 vlan_filtering_is_global:1; 36463cfc657SVladimir Oltean 36563cfc657SVladimir Oltean /* Keep VLAN filtering enabled on ports not offloading any upper */ 36663cfc657SVladimir Oltean u32 needs_standalone_vlan_filtering:1; 36763cfc657SVladimir Oltean 36863cfc657SVladimir Oltean /* Pass .port_vlan_add and .port_vlan_del to drivers even for bridges 36963cfc657SVladimir Oltean * that have vlan_filtering=0. All drivers should ideally set this (and 37063cfc657SVladimir Oltean * then the option would get removed), but it is unknown whether this 3717787ff77SVladimir Oltean * would break things or not. 3727787ff77SVladimir Oltean */ 37363cfc657SVladimir Oltean u32 configure_vlan_while_not_filtering:1; 37463cfc657SVladimir Oltean 37563cfc657SVladimir Oltean /* If the switch driver always programs the CPU port as egress tagged 37663cfc657SVladimir Oltean * despite the VLAN configuration indicating otherwise, then setting 37763cfc657SVladimir Oltean * @untag_bridge_pvid will force the DSA receive path to pop the 37863cfc657SVladimir Oltean * bridge's default_pvid VLAN tagged frames to offer a consistent 37963cfc657SVladimir Oltean * behavior between a vlan_filtering=0 and vlan_filtering=1 bridge 3807787ff77SVladimir Oltean * device. 3817787ff77SVladimir Oltean */ 38263cfc657SVladimir Oltean u32 untag_bridge_pvid:1; 38363cfc657SVladimir Oltean 3847787ff77SVladimir Oltean /* Let DSA manage the FDB entries towards the 3857787ff77SVladimir Oltean * CPU, based on the software bridge database. 3867787ff77SVladimir Oltean */ 38763cfc657SVladimir Oltean u32 assisted_learning_on_cpu_port:1; 38863cfc657SVladimir Oltean 38963cfc657SVladimir Oltean /* In case vlan_filtering_is_global is set, the VLAN awareness state 39063cfc657SVladimir Oltean * should be retrieved from here and not from the per-port settings. 3917787ff77SVladimir Oltean */ 39263cfc657SVladimir Oltean u32 vlan_filtering:1; 39363cfc657SVladimir Oltean 39463cfc657SVladimir Oltean /* MAC PCS does not provide link state change interrupt, and requires 39563cfc657SVladimir Oltean * polling. Flag passed on to PHYLINK. 3967787ff77SVladimir Oltean */ 39763cfc657SVladimir Oltean u32 pcs_poll:1; 39863cfc657SVladimir Oltean 39963cfc657SVladimir Oltean /* For switches that only have the MRU configurable. To ensure the 40063cfc657SVladimir Oltean * configured MTU is not exceeded, normalization of MRU on all bridged 40163cfc657SVladimir Oltean * interfaces is needed. 4027787ff77SVladimir Oltean */ 40363cfc657SVladimir Oltean u32 mtu_enforcement_ingress:1; 4047787ff77SVladimir Oltean 405f515f192SVivien Didelot /* Listener for switch fabric events */ 406f515f192SVivien Didelot struct notifier_block nb; 407f515f192SVivien Didelot 408c8f0b869SBen Hutchings /* 4097543a6d5SAndrew Lunn * Give the switch driver somewhere to hang its private data 4107543a6d5SAndrew Lunn * structure. 4117543a6d5SAndrew Lunn */ 4127543a6d5SAndrew Lunn void *priv; 4137543a6d5SAndrew Lunn 414dc452a47SVladimir Oltean void *tagger_data; 415dc452a47SVladimir Oltean 4167543a6d5SAndrew Lunn /* 417c8f0b869SBen Hutchings * Configuration data for this switch. 418c8f0b869SBen Hutchings */ 419ff04955cSAndrew Lunn struct dsa_chip_data *cd; 420c8f0b869SBen Hutchings 421c8f0b869SBen Hutchings /* 4229d490b4eSVivien Didelot * The switch operations. 423c8f0b869SBen Hutchings */ 424a82f67afSFlorian Fainelli const struct dsa_switch_ops *ops; 425c8f0b869SBen Hutchings 42666472fc0SAndrew Lunn /* 427c8f0b869SBen Hutchings * Slave mii_bus and devices for the individual ports. 428c8f0b869SBen Hutchings */ 4290d8bcdd3SFlorian Fainelli u32 phys_mii_mask; 430c8f0b869SBen Hutchings struct mii_bus *slave_mii_bus; 431a0c02161SVivien Didelot 4320f3da6afSVivien Didelot /* Ageing Time limits in msecs */ 4330f3da6afSVivien Didelot unsigned int ageing_time_min; 4340f3da6afSVivien Didelot unsigned int ageing_time_max; 4350f3da6afSVivien Didelot 436d7b1fd52SVladimir Oltean /* Storage for drivers using tag_8021q */ 437d7b1fd52SVladimir Oltean struct dsa_8021q_context *tag_8021q_ctx; 438d7b1fd52SVladimir Oltean 43996567d5dSAndrew Lunn /* devlink used to represent this switch device */ 44096567d5dSAndrew Lunn struct devlink *devlink; 44196567d5dSAndrew Lunn 44255199df6SFlorian Fainelli /* Number of switch port queues */ 44355199df6SFlorian Fainelli unsigned int num_tx_queues; 44455199df6SFlorian Fainelli 445058102a6STobias Waldekranz /* Drivers that benefit from having an ID associated with each 446058102a6STobias Waldekranz * offloaded LAG should set this to the maximum number of 447058102a6STobias Waldekranz * supported IDs. DSA will then maintain a mapping of _at 448058102a6STobias Waldekranz * least_ these many IDs, accessible to drivers via 449058102a6STobias Waldekranz * dsa_lag_id(). 450058102a6STobias Waldekranz */ 451058102a6STobias Waldekranz unsigned int num_lag_ids; 452058102a6STobias Waldekranz 453947c8746SVladimir Oltean /* Drivers that support bridge forwarding offload or FDB isolation 454947c8746SVladimir Oltean * should set this to the maximum number of bridges spanning the same 455947c8746SVladimir Oltean * switch tree (or all trees, in the case of cross-tree bridging 456947c8746SVladimir Oltean * support) that can be offloaded. 457123abc06SVladimir Oltean */ 458947c8746SVladimir Oltean unsigned int max_num_bridges; 459123abc06SVladimir Oltean 460258030acSVladimir Oltean unsigned int num_ports; 461c8f0b869SBen Hutchings }; 462c8f0b869SBen Hutchings 46368bb8ea8SVivien Didelot static inline struct dsa_port *dsa_to_port(struct dsa_switch *ds, int p) 464c38c5a66SVivien Didelot { 465b96ddf25SVivien Didelot struct dsa_switch_tree *dst = ds->dst; 466d607525bSVivien Didelot struct dsa_port *dp; 467b96ddf25SVivien Didelot 468b96ddf25SVivien Didelot list_for_each_entry(dp, &dst->ports, list) 469b96ddf25SVivien Didelot if (dp->ds == ds && dp->index == p) 470b96ddf25SVivien Didelot return dp; 471d607525bSVivien Didelot 472d607525bSVivien Didelot return NULL; 473c38c5a66SVivien Didelot } 474c38c5a66SVivien Didelot 475a8986681SVladimir Oltean static inline bool dsa_port_is_dsa(struct dsa_port *port) 476a8986681SVladimir Oltean { 477a8986681SVladimir Oltean return port->type == DSA_PORT_TYPE_DSA; 478a8986681SVladimir Oltean } 479a8986681SVladimir Oltean 480a8986681SVladimir Oltean static inline bool dsa_port_is_cpu(struct dsa_port *port) 481a8986681SVladimir Oltean { 482a8986681SVladimir Oltean return port->type == DSA_PORT_TYPE_CPU; 483a8986681SVladimir Oltean } 484a8986681SVladimir Oltean 485a8986681SVladimir Oltean static inline bool dsa_port_is_user(struct dsa_port *dp) 486a8986681SVladimir Oltean { 487a8986681SVladimir Oltean return dp->type == DSA_PORT_TYPE_USER; 488a8986681SVladimir Oltean } 489a8986681SVladimir Oltean 490a57d8c21SVladimir Oltean static inline bool dsa_port_is_unused(struct dsa_port *dp) 491a57d8c21SVladimir Oltean { 492a57d8c21SVladimir Oltean return dp->type == DSA_PORT_TYPE_UNUSED; 493a57d8c21SVladimir Oltean } 494a57d8c21SVladimir Oltean 495295ab96fSVladimir Oltean static inline bool dsa_port_master_is_operational(struct dsa_port *dp) 496295ab96fSVladimir Oltean { 497295ab96fSVladimir Oltean return dsa_port_is_cpu(dp) && dp->master_admin_up && 498295ab96fSVladimir Oltean dp->master_oper_up; 499295ab96fSVladimir Oltean } 500295ab96fSVladimir Oltean 501bff7b688SVivien Didelot static inline bool dsa_is_unused_port(struct dsa_switch *ds, int p) 502bff7b688SVivien Didelot { 503c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_UNUSED; 504bff7b688SVivien Didelot } 505bff7b688SVivien Didelot 506c8f0b869SBen Hutchings static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p) 507c8f0b869SBen Hutchings { 508c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_CPU; 509c8f0b869SBen Hutchings } 510c8f0b869SBen Hutchings 51160045cbfSAndrew Lunn static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p) 51260045cbfSAndrew Lunn { 513c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_DSA; 51460045cbfSAndrew Lunn } 51560045cbfSAndrew Lunn 5162b3e9891SVivien Didelot static inline bool dsa_is_user_port(struct dsa_switch *ds, int p) 5176cd456f3SVivien Didelot { 518c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_USER; 5196cd456f3SVivien Didelot } 5206cd456f3SVivien Didelot 52182b31898SVladimir Oltean #define dsa_tree_for_each_user_port(_dp, _dst) \ 52282b31898SVladimir Oltean list_for_each_entry((_dp), &(_dst)->ports, list) \ 52382b31898SVladimir Oltean if (dsa_port_is_user((_dp))) 52482b31898SVladimir Oltean 52582b31898SVladimir Oltean #define dsa_switch_for_each_port(_dp, _ds) \ 52682b31898SVladimir Oltean list_for_each_entry((_dp), &(_ds)->dst->ports, list) \ 52782b31898SVladimir Oltean if ((_dp)->ds == (_ds)) 52882b31898SVladimir Oltean 52982b31898SVladimir Oltean #define dsa_switch_for_each_port_safe(_dp, _next, _ds) \ 53082b31898SVladimir Oltean list_for_each_entry_safe((_dp), (_next), &(_ds)->dst->ports, list) \ 53182b31898SVladimir Oltean if ((_dp)->ds == (_ds)) 53282b31898SVladimir Oltean 53382b31898SVladimir Oltean #define dsa_switch_for_each_port_continue_reverse(_dp, _ds) \ 53482b31898SVladimir Oltean list_for_each_entry_continue_reverse((_dp), &(_ds)->dst->ports, list) \ 53582b31898SVladimir Oltean if ((_dp)->ds == (_ds)) 53682b31898SVladimir Oltean 53782b31898SVladimir Oltean #define dsa_switch_for_each_available_port(_dp, _ds) \ 53882b31898SVladimir Oltean dsa_switch_for_each_port((_dp), (_ds)) \ 53982b31898SVladimir Oltean if (!dsa_port_is_unused((_dp))) 54082b31898SVladimir Oltean 54182b31898SVladimir Oltean #define dsa_switch_for_each_user_port(_dp, _ds) \ 54282b31898SVladimir Oltean dsa_switch_for_each_port((_dp), (_ds)) \ 54382b31898SVladimir Oltean if (dsa_port_is_user((_dp))) 54482b31898SVladimir Oltean 54582b31898SVladimir Oltean #define dsa_switch_for_each_cpu_port(_dp, _ds) \ 54682b31898SVladimir Oltean dsa_switch_for_each_port((_dp), (_ds)) \ 54782b31898SVladimir Oltean if (dsa_port_is_cpu((_dp))) 54882b31898SVladimir Oltean 54902bc6e54SVivien Didelot static inline u32 dsa_user_ports(struct dsa_switch *ds) 55002bc6e54SVivien Didelot { 551d0004a02SVladimir Oltean struct dsa_port *dp; 552c38c5a66SVivien Didelot u32 mask = 0; 55302bc6e54SVivien Didelot 554d0004a02SVladimir Oltean dsa_switch_for_each_user_port(dp, ds) 555d0004a02SVladimir Oltean mask |= BIT(dp->index); 556c38c5a66SVivien Didelot 557c38c5a66SVivien Didelot return mask; 558c8652c83SVivien Didelot } 559c8652c83SVivien Didelot 560c5f51765SVivien Didelot /* Return the local port used to reach an arbitrary switch device */ 561c5f51765SVivien Didelot static inline unsigned int dsa_routing_port(struct dsa_switch *ds, int device) 562c5f51765SVivien Didelot { 563c5f51765SVivien Didelot struct dsa_switch_tree *dst = ds->dst; 564c5f51765SVivien Didelot struct dsa_link *dl; 565c5f51765SVivien Didelot 566c5f51765SVivien Didelot list_for_each_entry(dl, &dst->rtable, list) 567c5f51765SVivien Didelot if (dl->dp->ds == ds && dl->link_dp->ds->index == device) 568c5f51765SVivien Didelot return dl->dp->index; 569c5f51765SVivien Didelot 570c5f51765SVivien Didelot return ds->num_ports; 571c5f51765SVivien Didelot } 572c5f51765SVivien Didelot 5733b8fac5dSVivien Didelot /* Return the local port used to reach an arbitrary switch port */ 5743b8fac5dSVivien Didelot static inline unsigned int dsa_towards_port(struct dsa_switch *ds, int device, 5753b8fac5dSVivien Didelot int port) 5763b8fac5dSVivien Didelot { 5773b8fac5dSVivien Didelot if (device == ds->index) 5783b8fac5dSVivien Didelot return port; 5793b8fac5dSVivien Didelot else 580c5f51765SVivien Didelot return dsa_routing_port(ds, device); 5813b8fac5dSVivien Didelot } 5823b8fac5dSVivien Didelot 5833b8fac5dSVivien Didelot /* Return the local port used to reach the dedicated CPU port */ 58407073c79SVivien Didelot static inline unsigned int dsa_upstream_port(struct dsa_switch *ds, int port) 585c8f0b869SBen Hutchings { 58607073c79SVivien Didelot const struct dsa_port *dp = dsa_to_port(ds, port); 58707073c79SVivien Didelot const struct dsa_port *cpu_dp = dp->cpu_dp; 58807073c79SVivien Didelot 58907073c79SVivien Didelot if (!cpu_dp) 59007073c79SVivien Didelot return port; 591c8f0b869SBen Hutchings 5923b8fac5dSVivien Didelot return dsa_towards_port(ds, cpu_dp->ds->index, cpu_dp->index); 593c8f0b869SBen Hutchings } 594c8f0b869SBen Hutchings 59563609c8fSVladimir Oltean /* Return true if this is the local port used to reach the CPU port */ 59663609c8fSVladimir Oltean static inline bool dsa_is_upstream_port(struct dsa_switch *ds, int port) 59763609c8fSVladimir Oltean { 59863609c8fSVladimir Oltean if (dsa_is_unused_port(ds, port)) 59963609c8fSVladimir Oltean return false; 60063609c8fSVladimir Oltean 60163609c8fSVladimir Oltean return port == dsa_upstream_port(ds, port); 60263609c8fSVladimir Oltean } 60363609c8fSVladimir Oltean 604d352b20fSTobias Waldekranz /* Return true if this is a DSA port leading away from the CPU */ 605d352b20fSTobias Waldekranz static inline bool dsa_is_downstream_port(struct dsa_switch *ds, int port) 606d352b20fSTobias Waldekranz { 607d352b20fSTobias Waldekranz return dsa_is_dsa_port(ds, port) && !dsa_is_upstream_port(ds, port); 608d352b20fSTobias Waldekranz } 609d352b20fSTobias Waldekranz 6107af4a361STobias Waldekranz /* Return the local port used to reach the CPU port */ 6117af4a361STobias Waldekranz static inline unsigned int dsa_switch_upstream_port(struct dsa_switch *ds) 6127af4a361STobias Waldekranz { 6137af4a361STobias Waldekranz struct dsa_port *dp; 6147af4a361STobias Waldekranz 6157af4a361STobias Waldekranz dsa_switch_for_each_available_port(dp, ds) { 6167af4a361STobias Waldekranz return dsa_upstream_port(ds, dp->index); 6177af4a361STobias Waldekranz } 6187af4a361STobias Waldekranz 6197af4a361STobias Waldekranz return ds->num_ports; 6207af4a361STobias Waldekranz } 6217af4a361STobias Waldekranz 62263609c8fSVladimir Oltean /* Return true if @upstream_ds is an upstream switch of @downstream_ds, meaning 62363609c8fSVladimir Oltean * that the routing port from @downstream_ds to @upstream_ds is also the port 62463609c8fSVladimir Oltean * which @downstream_ds uses to reach its dedicated CPU. 62563609c8fSVladimir Oltean */ 62663609c8fSVladimir Oltean static inline bool dsa_switch_is_upstream_of(struct dsa_switch *upstream_ds, 62763609c8fSVladimir Oltean struct dsa_switch *downstream_ds) 62863609c8fSVladimir Oltean { 62963609c8fSVladimir Oltean int routing_port; 63063609c8fSVladimir Oltean 63163609c8fSVladimir Oltean if (upstream_ds == downstream_ds) 63263609c8fSVladimir Oltean return true; 63363609c8fSVladimir Oltean 63463609c8fSVladimir Oltean routing_port = dsa_routing_port(downstream_ds, upstream_ds->index); 63563609c8fSVladimir Oltean 63663609c8fSVladimir Oltean return dsa_is_upstream_port(downstream_ds, routing_port); 63763609c8fSVladimir Oltean } 63863609c8fSVladimir Oltean 639cf2d45f5SVladimir Oltean static inline bool dsa_port_is_vlan_filtering(const struct dsa_port *dp) 640cf2d45f5SVladimir Oltean { 641cf2d45f5SVladimir Oltean const struct dsa_switch *ds = dp->ds; 642cf2d45f5SVladimir Oltean 643cf2d45f5SVladimir Oltean if (ds->vlan_filtering_is_global) 644cf2d45f5SVladimir Oltean return ds->vlan_filtering; 645cf2d45f5SVladimir Oltean else 646cf2d45f5SVladimir Oltean return dp->vlan_filtering; 647cf2d45f5SVladimir Oltean } 648cf2d45f5SVladimir Oltean 649cc76ce9eSTobias Waldekranz static inline 650cc76ce9eSTobias Waldekranz struct net_device *dsa_port_to_bridge_port(const struct dsa_port *dp) 651cc76ce9eSTobias Waldekranz { 652d3eed0e5SVladimir Oltean if (!dp->bridge) 653cc76ce9eSTobias Waldekranz return NULL; 654cc76ce9eSTobias Waldekranz 655cc76ce9eSTobias Waldekranz if (dp->lag_dev) 656cc76ce9eSTobias Waldekranz return dp->lag_dev; 657cc76ce9eSTobias Waldekranz else if (dp->hsr_dev) 658cc76ce9eSTobias Waldekranz return dp->hsr_dev; 659cc76ce9eSTobias Waldekranz 660cc76ce9eSTobias Waldekranz return dp->slave; 661cc76ce9eSTobias Waldekranz } 662cc76ce9eSTobias Waldekranz 66336cbf39bSVladimir Oltean static inline struct net_device * 66436cbf39bSVladimir Oltean dsa_port_bridge_dev_get(const struct dsa_port *dp) 66536cbf39bSVladimir Oltean { 666d3eed0e5SVladimir Oltean return dp->bridge ? dp->bridge->dev : NULL; 66736cbf39bSVladimir Oltean } 66836cbf39bSVladimir Oltean 66936cbf39bSVladimir Oltean static inline unsigned int dsa_port_bridge_num_get(struct dsa_port *dp) 67036cbf39bSVladimir Oltean { 671d3eed0e5SVladimir Oltean return dp->bridge ? dp->bridge->num : 0; 67236cbf39bSVladimir Oltean } 67336cbf39bSVladimir Oltean 67436cbf39bSVladimir Oltean static inline bool dsa_port_bridge_same(const struct dsa_port *a, 67536cbf39bSVladimir Oltean const struct dsa_port *b) 67636cbf39bSVladimir Oltean { 67736cbf39bSVladimir Oltean struct net_device *br_a = dsa_port_bridge_dev_get(a); 67836cbf39bSVladimir Oltean struct net_device *br_b = dsa_port_bridge_dev_get(b); 67936cbf39bSVladimir Oltean 68036cbf39bSVladimir Oltean /* Standalone ports are not in the same bridge with one another */ 68136cbf39bSVladimir Oltean return (!br_a || !br_b) ? false : (br_a == br_b); 68236cbf39bSVladimir Oltean } 68336cbf39bSVladimir Oltean 6846a43cba3SVladimir Oltean static inline bool dsa_port_offloads_bridge_port(struct dsa_port *dp, 6856a43cba3SVladimir Oltean const struct net_device *dev) 6866a43cba3SVladimir Oltean { 6876a43cba3SVladimir Oltean return dsa_port_to_bridge_port(dp) == dev; 6886a43cba3SVladimir Oltean } 6896a43cba3SVladimir Oltean 6906a43cba3SVladimir Oltean static inline bool 6916a43cba3SVladimir Oltean dsa_port_offloads_bridge_dev(struct dsa_port *dp, 6926a43cba3SVladimir Oltean const struct net_device *bridge_dev) 6936a43cba3SVladimir Oltean { 6946a43cba3SVladimir Oltean /* DSA ports connected to a bridge, and event was emitted 6956a43cba3SVladimir Oltean * for the bridge. 6966a43cba3SVladimir Oltean */ 6976a43cba3SVladimir Oltean return dsa_port_bridge_dev_get(dp) == bridge_dev; 6986a43cba3SVladimir Oltean } 6996a43cba3SVladimir Oltean 700d3eed0e5SVladimir Oltean static inline bool dsa_port_offloads_bridge(struct dsa_port *dp, 701d3eed0e5SVladimir Oltean const struct dsa_bridge *bridge) 702d3eed0e5SVladimir Oltean { 703d3eed0e5SVladimir Oltean return dsa_port_bridge_dev_get(dp) == bridge->dev; 704d3eed0e5SVladimir Oltean } 705d3eed0e5SVladimir Oltean 7066a43cba3SVladimir Oltean /* Returns true if any port of this tree offloads the given net_device */ 7076a43cba3SVladimir Oltean static inline bool dsa_tree_offloads_bridge_port(struct dsa_switch_tree *dst, 7086a43cba3SVladimir Oltean const struct net_device *dev) 7096a43cba3SVladimir Oltean { 7106a43cba3SVladimir Oltean struct dsa_port *dp; 7116a43cba3SVladimir Oltean 7126a43cba3SVladimir Oltean list_for_each_entry(dp, &dst->ports, list) 7136a43cba3SVladimir Oltean if (dsa_port_offloads_bridge_port(dp, dev)) 7146a43cba3SVladimir Oltean return true; 7156a43cba3SVladimir Oltean 7166a43cba3SVladimir Oltean return false; 7176a43cba3SVladimir Oltean } 7186a43cba3SVladimir Oltean 7196a43cba3SVladimir Oltean /* Returns true if any port of this tree offloads the given bridge */ 7206a43cba3SVladimir Oltean static inline bool 7216a43cba3SVladimir Oltean dsa_tree_offloads_bridge_dev(struct dsa_switch_tree *dst, 7226a43cba3SVladimir Oltean const struct net_device *bridge_dev) 7236a43cba3SVladimir Oltean { 7246a43cba3SVladimir Oltean struct dsa_port *dp; 7256a43cba3SVladimir Oltean 7266a43cba3SVladimir Oltean list_for_each_entry(dp, &dst->ports, list) 7276a43cba3SVladimir Oltean if (dsa_port_offloads_bridge_dev(dp, bridge_dev)) 7286a43cba3SVladimir Oltean return true; 7296a43cba3SVladimir Oltean 7306a43cba3SVladimir Oltean return false; 7316a43cba3SVladimir Oltean } 7326a43cba3SVladimir Oltean 7332bedde1aSArkadi Sharshevsky typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid, 7342bedde1aSArkadi Sharshevsky bool is_static, void *data); 7359d490b4eSVivien Didelot struct dsa_switch_ops { 73653da0ebaSVladimir Oltean /* 73753da0ebaSVladimir Oltean * Tagging protocol helpers called for the CPU ports and DSA links. 73853da0ebaSVladimir Oltean * @get_tag_protocol retrieves the initial tagging protocol and is 73953da0ebaSVladimir Oltean * mandatory. Switches which can operate using multiple tagging 74053da0ebaSVladimir Oltean * protocols should implement @change_tag_protocol and report in 74153da0ebaSVladimir Oltean * @get_tag_protocol the tagger in current use. 74253da0ebaSVladimir Oltean */ 7435ed4e3ebSFlorian Fainelli enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds, 7444d776482SFlorian Fainelli int port, 7454d776482SFlorian Fainelli enum dsa_tag_protocol mprot); 74653da0ebaSVladimir Oltean int (*change_tag_protocol)(struct dsa_switch *ds, int port, 74753da0ebaSVladimir Oltean enum dsa_tag_protocol proto); 748dc452a47SVladimir Oltean /* 749dc452a47SVladimir Oltean * Method for switch drivers to connect to the tagging protocol driver 750dc452a47SVladimir Oltean * in current use. The switch driver can provide handlers for certain 751dc452a47SVladimir Oltean * types of packets for switch management. 752dc452a47SVladimir Oltean */ 753dc452a47SVladimir Oltean int (*connect_tag_protocol)(struct dsa_switch *ds, 754dc452a47SVladimir Oltean enum dsa_tag_protocol proto); 7557b314362SAndrew Lunn 756fd292c18SVladimir Oltean /* Optional switch-wide initialization and destruction methods */ 757c8f0b869SBen Hutchings int (*setup)(struct dsa_switch *ds); 7585e3f847aSVladimir Oltean void (*teardown)(struct dsa_switch *ds); 759fd292c18SVladimir Oltean 760fd292c18SVladimir Oltean /* Per-port initialization and destruction methods. Mandatory if the 761fd292c18SVladimir Oltean * driver registers devlink port regions, optional otherwise. 762fd292c18SVladimir Oltean */ 763fd292c18SVladimir Oltean int (*port_setup)(struct dsa_switch *ds, int port); 764fd292c18SVladimir Oltean void (*port_teardown)(struct dsa_switch *ds, int port); 765fd292c18SVladimir Oltean 7666819563eSFlorian Fainelli u32 (*get_phy_flags)(struct dsa_switch *ds, int port); 767c8f0b869SBen Hutchings 768c8f0b869SBen Hutchings /* 769c8f0b869SBen Hutchings * Access to the switch's PHY registers. 770c8f0b869SBen Hutchings */ 771c8f0b869SBen Hutchings int (*phy_read)(struct dsa_switch *ds, int port, int regnum); 772c8f0b869SBen Hutchings int (*phy_write)(struct dsa_switch *ds, int port, 773c8f0b869SBen Hutchings int regnum, u16 val); 774c8f0b869SBen Hutchings 775c8f0b869SBen Hutchings /* 776ec9436baSFlorian Fainelli * Link state adjustment (called from libphy) 777ec9436baSFlorian Fainelli */ 778ec9436baSFlorian Fainelli void (*adjust_link)(struct dsa_switch *ds, int port, 779ec9436baSFlorian Fainelli struct phy_device *phydev); 780ce31b31cSFlorian Fainelli void (*fixed_link_update)(struct dsa_switch *ds, int port, 781ce31b31cSFlorian Fainelli struct fixed_phy_status *st); 782ec9436baSFlorian Fainelli 783ec9436baSFlorian Fainelli /* 78411d8f3ddSFlorian Fainelli * PHYLINK integration 78511d8f3ddSFlorian Fainelli */ 786072eea6cSRussell King (Oracle) void (*phylink_get_caps)(struct dsa_switch *ds, int port, 787072eea6cSRussell King (Oracle) struct phylink_config *config); 78811d8f3ddSFlorian Fainelli void (*phylink_validate)(struct dsa_switch *ds, int port, 78911d8f3ddSFlorian Fainelli unsigned long *supported, 79011d8f3ddSFlorian Fainelli struct phylink_link_state *state); 79111d8f3ddSFlorian Fainelli int (*phylink_mac_link_state)(struct dsa_switch *ds, int port, 79211d8f3ddSFlorian Fainelli struct phylink_link_state *state); 79311d8f3ddSFlorian Fainelli void (*phylink_mac_config)(struct dsa_switch *ds, int port, 79411d8f3ddSFlorian Fainelli unsigned int mode, 79511d8f3ddSFlorian Fainelli const struct phylink_link_state *state); 79611d8f3ddSFlorian Fainelli void (*phylink_mac_an_restart)(struct dsa_switch *ds, int port); 79711d8f3ddSFlorian Fainelli void (*phylink_mac_link_down)(struct dsa_switch *ds, int port, 79811d8f3ddSFlorian Fainelli unsigned int mode, 79911d8f3ddSFlorian Fainelli phy_interface_t interface); 80011d8f3ddSFlorian Fainelli void (*phylink_mac_link_up)(struct dsa_switch *ds, int port, 80111d8f3ddSFlorian Fainelli unsigned int mode, 80211d8f3ddSFlorian Fainelli phy_interface_t interface, 8035b502a7bSRussell King struct phy_device *phydev, 8045b502a7bSRussell King int speed, int duplex, 8055b502a7bSRussell King bool tx_pause, bool rx_pause); 80611d8f3ddSFlorian Fainelli void (*phylink_fixed_state)(struct dsa_switch *ds, int port, 80711d8f3ddSFlorian Fainelli struct phylink_link_state *state); 80811d8f3ddSFlorian Fainelli /* 809c2ec5f2eSOleksij Rempel * Port statistics counters. 810c8f0b869SBen Hutchings */ 81189f09048SFlorian Fainelli void (*get_strings)(struct dsa_switch *ds, int port, 81289f09048SFlorian Fainelli u32 stringset, uint8_t *data); 813c8f0b869SBen Hutchings void (*get_ethtool_stats)(struct dsa_switch *ds, 814c8f0b869SBen Hutchings int port, uint64_t *data); 81589f09048SFlorian Fainelli int (*get_sset_count)(struct dsa_switch *ds, int port, int sset); 816cf963573SFlorian Fainelli void (*get_ethtool_phy_stats)(struct dsa_switch *ds, 817cf963573SFlorian Fainelli int port, uint64_t *data); 818487d3855SAlvin Šipraga void (*get_eth_phy_stats)(struct dsa_switch *ds, int port, 819487d3855SAlvin Šipraga struct ethtool_eth_phy_stats *phy_stats); 820487d3855SAlvin Šipraga void (*get_eth_mac_stats)(struct dsa_switch *ds, int port, 821487d3855SAlvin Šipraga struct ethtool_eth_mac_stats *mac_stats); 822487d3855SAlvin Šipraga void (*get_eth_ctrl_stats)(struct dsa_switch *ds, int port, 823487d3855SAlvin Šipraga struct ethtool_eth_ctrl_stats *ctrl_stats); 824c2ec5f2eSOleksij Rempel void (*get_stats64)(struct dsa_switch *ds, int port, 825c2ec5f2eSOleksij Rempel struct rtnl_link_stats64 *s); 826a71acad9SOleksij Rempel void (*self_test)(struct dsa_switch *ds, int port, 827a71acad9SOleksij Rempel struct ethtool_test *etest, u64 *data); 82824462549SFlorian Fainelli 82924462549SFlorian Fainelli /* 83019e57c4eSFlorian Fainelli * ethtool Wake-on-LAN 83119e57c4eSFlorian Fainelli */ 83219e57c4eSFlorian Fainelli void (*get_wol)(struct dsa_switch *ds, int port, 83319e57c4eSFlorian Fainelli struct ethtool_wolinfo *w); 83419e57c4eSFlorian Fainelli int (*set_wol)(struct dsa_switch *ds, int port, 83519e57c4eSFlorian Fainelli struct ethtool_wolinfo *w); 83619e57c4eSFlorian Fainelli 83719e57c4eSFlorian Fainelli /* 8380336369dSBrandon Streiff * ethtool timestamp info 8390336369dSBrandon Streiff */ 8400336369dSBrandon Streiff int (*get_ts_info)(struct dsa_switch *ds, int port, 8410336369dSBrandon Streiff struct ethtool_ts_info *ts); 8420336369dSBrandon Streiff 8430336369dSBrandon Streiff /* 84424462549SFlorian Fainelli * Suspend and resume 84524462549SFlorian Fainelli */ 84624462549SFlorian Fainelli int (*suspend)(struct dsa_switch *ds); 84724462549SFlorian Fainelli int (*resume)(struct dsa_switch *ds); 848b2f2af21SFlorian Fainelli 849b2f2af21SFlorian Fainelli /* 850b2f2af21SFlorian Fainelli * Port enable/disable 851b2f2af21SFlorian Fainelli */ 852b2f2af21SFlorian Fainelli int (*port_enable)(struct dsa_switch *ds, int port, 853b2f2af21SFlorian Fainelli struct phy_device *phy); 85475104db0SAndrew Lunn void (*port_disable)(struct dsa_switch *ds, int port); 8557905288fSFlorian Fainelli 8567905288fSFlorian Fainelli /* 85708f50061SVivien Didelot * Port's MAC EEE settings 8587905288fSFlorian Fainelli */ 85908f50061SVivien Didelot int (*set_mac_eee)(struct dsa_switch *ds, int port, 8607905288fSFlorian Fainelli struct ethtool_eee *e); 86108f50061SVivien Didelot int (*get_mac_eee)(struct dsa_switch *ds, int port, 8627905288fSFlorian Fainelli struct ethtool_eee *e); 86351579c3fSGuenter Roeck 8646793abb4SGuenter Roeck /* EEPROM access */ 8656793abb4SGuenter Roeck int (*get_eeprom_len)(struct dsa_switch *ds); 8666793abb4SGuenter Roeck int (*get_eeprom)(struct dsa_switch *ds, 8676793abb4SGuenter Roeck struct ethtool_eeprom *eeprom, u8 *data); 8686793abb4SGuenter Roeck int (*set_eeprom)(struct dsa_switch *ds, 8696793abb4SGuenter Roeck struct ethtool_eeprom *eeprom, u8 *data); 8703d762a0fSGuenter Roeck 8713d762a0fSGuenter Roeck /* 8723d762a0fSGuenter Roeck * Register access. 8733d762a0fSGuenter Roeck */ 8743d762a0fSGuenter Roeck int (*get_regs_len)(struct dsa_switch *ds, int port); 8753d762a0fSGuenter Roeck void (*get_regs)(struct dsa_switch *ds, int port, 8763d762a0fSGuenter Roeck struct ethtool_regs *regs, void *p); 877b73adef6SFlorian Fainelli 878b73adef6SFlorian Fainelli /* 879e358bef7SVladimir Oltean * Upper device tracking. 880e358bef7SVladimir Oltean */ 881e358bef7SVladimir Oltean int (*port_prechangeupper)(struct dsa_switch *ds, int port, 882e358bef7SVladimir Oltean struct netdev_notifier_changeupper_info *info); 883e358bef7SVladimir Oltean 884e358bef7SVladimir Oltean /* 885b73adef6SFlorian Fainelli * Bridge integration 886b73adef6SFlorian Fainelli */ 88734a79f63SVivien Didelot int (*set_ageing_time)(struct dsa_switch *ds, unsigned int msecs); 88871327a4eSVivien Didelot int (*port_bridge_join)(struct dsa_switch *ds, int port, 889b079922bSVladimir Oltean struct dsa_bridge bridge, 890b079922bSVladimir Oltean bool *tx_fwd_offload); 891f123f2fbSVivien Didelot void (*port_bridge_leave)(struct dsa_switch *ds, int port, 892d3eed0e5SVladimir Oltean struct dsa_bridge bridge); 89343c44a9fSVivien Didelot void (*port_stp_state_set)(struct dsa_switch *ds, int port, 894b73adef6SFlorian Fainelli u8 state); 895732f794cSVivien Didelot void (*port_fast_age)(struct dsa_switch *ds, int port); 896a8b659e7SVladimir Oltean int (*port_pre_bridge_flags)(struct dsa_switch *ds, int port, 897a8b659e7SVladimir Oltean struct switchdev_brport_flags flags, 898a8b659e7SVladimir Oltean struct netlink_ext_ack *extack); 899a8b659e7SVladimir Oltean int (*port_bridge_flags)(struct dsa_switch *ds, int port, 900a8b659e7SVladimir Oltean struct switchdev_brport_flags flags, 901a8b659e7SVladimir Oltean struct netlink_ext_ack *extack); 9022a778e1bSVivien Didelot 9032a778e1bSVivien Didelot /* 90411149536SVivien Didelot * VLAN support 90511149536SVivien Didelot */ 906fb2dabadSVivien Didelot int (*port_vlan_filtering)(struct dsa_switch *ds, int port, 90789153ed6SVladimir Oltean bool vlan_filtering, 90889153ed6SVladimir Oltean struct netlink_ext_ack *extack); 9091958d581SVladimir Oltean int (*port_vlan_add)(struct dsa_switch *ds, int port, 91031046a5fSVladimir Oltean const struct switchdev_obj_port_vlan *vlan, 91131046a5fSVladimir Oltean struct netlink_ext_ack *extack); 91276e398a6SVivien Didelot int (*port_vlan_del)(struct dsa_switch *ds, int port, 91376e398a6SVivien Didelot const struct switchdev_obj_port_vlan *vlan); 91411149536SVivien Didelot /* 9152a778e1bSVivien Didelot * Forwarding database 9162a778e1bSVivien Didelot */ 9171b6dd556SArkadi Sharshevsky int (*port_fdb_add)(struct dsa_switch *ds, int port, 9186c2c1dcbSArkadi Sharshevsky const unsigned char *addr, u16 vid); 9192a778e1bSVivien Didelot int (*port_fdb_del)(struct dsa_switch *ds, int port, 9206c2c1dcbSArkadi Sharshevsky const unsigned char *addr, u16 vid); 921ea70ba98SVivien Didelot int (*port_fdb_dump)(struct dsa_switch *ds, int port, 9222bedde1aSArkadi Sharshevsky dsa_fdb_dump_cb_t *cb, void *data); 9238df30255SVivien Didelot 9248df30255SVivien Didelot /* 9258df30255SVivien Didelot * Multicast database 9268df30255SVivien Didelot */ 927a52b2da7SVladimir Oltean int (*port_mdb_add)(struct dsa_switch *ds, int port, 9283709aadcSVivien Didelot const struct switchdev_obj_port_mdb *mdb); 9298df30255SVivien Didelot int (*port_mdb_del)(struct dsa_switch *ds, int port, 9308df30255SVivien Didelot const struct switchdev_obj_port_mdb *mdb); 931bf9f2648SFlorian Fainelli /* 932bf9f2648SFlorian Fainelli * RXNFC 933bf9f2648SFlorian Fainelli */ 934bf9f2648SFlorian Fainelli int (*get_rxnfc)(struct dsa_switch *ds, int port, 935bf9f2648SFlorian Fainelli struct ethtool_rxnfc *nfc, u32 *rule_locs); 936bf9f2648SFlorian Fainelli int (*set_rxnfc)(struct dsa_switch *ds, int port, 937bf9f2648SFlorian Fainelli struct ethtool_rxnfc *nfc); 938f50f2127SFlorian Fainelli 939f50f2127SFlorian Fainelli /* 940f50f2127SFlorian Fainelli * TC integration 941f50f2127SFlorian Fainelli */ 942ed11bb1fSVladimir Oltean int (*cls_flower_add)(struct dsa_switch *ds, int port, 943ed11bb1fSVladimir Oltean struct flow_cls_offload *cls, bool ingress); 944ed11bb1fSVladimir Oltean int (*cls_flower_del)(struct dsa_switch *ds, int port, 945ed11bb1fSVladimir Oltean struct flow_cls_offload *cls, bool ingress); 946ed11bb1fSVladimir Oltean int (*cls_flower_stats)(struct dsa_switch *ds, int port, 947ed11bb1fSVladimir Oltean struct flow_cls_offload *cls, bool ingress); 948f50f2127SFlorian Fainelli int (*port_mirror_add)(struct dsa_switch *ds, int port, 949f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry *mirror, 950f50f2127SFlorian Fainelli bool ingress); 951f50f2127SFlorian Fainelli void (*port_mirror_del)(struct dsa_switch *ds, int port, 952f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry *mirror); 95334297176SVladimir Oltean int (*port_policer_add)(struct dsa_switch *ds, int port, 95434297176SVladimir Oltean struct dsa_mall_policer_tc_entry *policer); 95534297176SVladimir Oltean void (*port_policer_del)(struct dsa_switch *ds, int port); 95647d23af2SVladimir Oltean int (*port_setup_tc)(struct dsa_switch *ds, int port, 95747d23af2SVladimir Oltean enum tc_setup_type type, void *type_data); 95840ef2c93SVivien Didelot 95940ef2c93SVivien Didelot /* 96040ef2c93SVivien Didelot * Cross-chip operations 96140ef2c93SVivien Didelot */ 962f66a6a69SVladimir Oltean int (*crosschip_bridge_join)(struct dsa_switch *ds, int tree_index, 963f66a6a69SVladimir Oltean int sw_index, int port, 964d3eed0e5SVladimir Oltean struct dsa_bridge bridge); 965f66a6a69SVladimir Oltean void (*crosschip_bridge_leave)(struct dsa_switch *ds, int tree_index, 966f66a6a69SVladimir Oltean int sw_index, int port, 967d3eed0e5SVladimir Oltean struct dsa_bridge bridge); 968058102a6STobias Waldekranz int (*crosschip_lag_change)(struct dsa_switch *ds, int sw_index, 969058102a6STobias Waldekranz int port); 970058102a6STobias Waldekranz int (*crosschip_lag_join)(struct dsa_switch *ds, int sw_index, 971058102a6STobias Waldekranz int port, struct net_device *lag, 972058102a6STobias Waldekranz struct netdev_lag_upper_info *info); 973058102a6STobias Waldekranz int (*crosschip_lag_leave)(struct dsa_switch *ds, int sw_index, 974058102a6STobias Waldekranz int port, struct net_device *lag); 9750336369dSBrandon Streiff 9760336369dSBrandon Streiff /* 9770336369dSBrandon Streiff * PTP functionality 9780336369dSBrandon Streiff */ 9790336369dSBrandon Streiff int (*port_hwtstamp_get)(struct dsa_switch *ds, int port, 9800336369dSBrandon Streiff struct ifreq *ifr); 9810336369dSBrandon Streiff int (*port_hwtstamp_set)(struct dsa_switch *ds, int port, 9820336369dSBrandon Streiff struct ifreq *ifr); 9835c5416f5SYangbo Lu void (*port_txtstamp)(struct dsa_switch *ds, int port, 9845c5416f5SYangbo Lu struct sk_buff *skb); 98590af1059SBrandon Streiff bool (*port_rxtstamp)(struct dsa_switch *ds, int port, 98690af1059SBrandon Streiff struct sk_buff *skb, unsigned int type); 98797a69a0dSVladimir Oltean 9880f06b855SAndrew Lunn /* Devlink parameters, etc */ 9896b297524SAndrew Lunn int (*devlink_param_get)(struct dsa_switch *ds, u32 id, 9906b297524SAndrew Lunn struct devlink_param_gset_ctx *ctx); 9916b297524SAndrew Lunn int (*devlink_param_set)(struct dsa_switch *ds, u32 id, 9926b297524SAndrew Lunn struct devlink_param_gset_ctx *ctx); 9930f06b855SAndrew Lunn int (*devlink_info_get)(struct dsa_switch *ds, 9940f06b855SAndrew Lunn struct devlink_info_req *req, 9950f06b855SAndrew Lunn struct netlink_ext_ack *extack); 9962a6ef763SVladimir Oltean int (*devlink_sb_pool_get)(struct dsa_switch *ds, 9972a6ef763SVladimir Oltean unsigned int sb_index, u16 pool_index, 9982a6ef763SVladimir Oltean struct devlink_sb_pool_info *pool_info); 9992a6ef763SVladimir Oltean int (*devlink_sb_pool_set)(struct dsa_switch *ds, unsigned int sb_index, 10002a6ef763SVladimir Oltean u16 pool_index, u32 size, 10012a6ef763SVladimir Oltean enum devlink_sb_threshold_type threshold_type, 10022a6ef763SVladimir Oltean struct netlink_ext_ack *extack); 10032a6ef763SVladimir Oltean int (*devlink_sb_port_pool_get)(struct dsa_switch *ds, int port, 10042a6ef763SVladimir Oltean unsigned int sb_index, u16 pool_index, 10052a6ef763SVladimir Oltean u32 *p_threshold); 10062a6ef763SVladimir Oltean int (*devlink_sb_port_pool_set)(struct dsa_switch *ds, int port, 10072a6ef763SVladimir Oltean unsigned int sb_index, u16 pool_index, 10082a6ef763SVladimir Oltean u32 threshold, 10092a6ef763SVladimir Oltean struct netlink_ext_ack *extack); 10102a6ef763SVladimir Oltean int (*devlink_sb_tc_pool_bind_get)(struct dsa_switch *ds, int port, 10112a6ef763SVladimir Oltean unsigned int sb_index, u16 tc_index, 10122a6ef763SVladimir Oltean enum devlink_sb_pool_type pool_type, 10132a6ef763SVladimir Oltean u16 *p_pool_index, u32 *p_threshold); 10142a6ef763SVladimir Oltean int (*devlink_sb_tc_pool_bind_set)(struct dsa_switch *ds, int port, 10152a6ef763SVladimir Oltean unsigned int sb_index, u16 tc_index, 10162a6ef763SVladimir Oltean enum devlink_sb_pool_type pool_type, 10172a6ef763SVladimir Oltean u16 pool_index, u32 threshold, 10182a6ef763SVladimir Oltean struct netlink_ext_ack *extack); 10192a6ef763SVladimir Oltean int (*devlink_sb_occ_snapshot)(struct dsa_switch *ds, 10202a6ef763SVladimir Oltean unsigned int sb_index); 10212a6ef763SVladimir Oltean int (*devlink_sb_occ_max_clear)(struct dsa_switch *ds, 10222a6ef763SVladimir Oltean unsigned int sb_index); 10232a6ef763SVladimir Oltean int (*devlink_sb_occ_port_pool_get)(struct dsa_switch *ds, int port, 10242a6ef763SVladimir Oltean unsigned int sb_index, u16 pool_index, 10252a6ef763SVladimir Oltean u32 *p_cur, u32 *p_max); 10262a6ef763SVladimir Oltean int (*devlink_sb_occ_tc_port_bind_get)(struct dsa_switch *ds, int port, 10272a6ef763SVladimir Oltean unsigned int sb_index, u16 tc_index, 10282a6ef763SVladimir Oltean enum devlink_sb_pool_type pool_type, 10292a6ef763SVladimir Oltean u32 *p_cur, u32 *p_max); 1030bfcb8132SVladimir Oltean 1031bfcb8132SVladimir Oltean /* 1032bfcb8132SVladimir Oltean * MTU change functionality. Switches can also adjust their MRU through 1033bfcb8132SVladimir Oltean * this method. By MTU, one understands the SDU (L2 payload) length. 1034bfcb8132SVladimir Oltean * If the switch needs to account for the DSA tag on the CPU port, this 1035ab88d64aSRandy Dunlap * method needs to do so privately. 1036bfcb8132SVladimir Oltean */ 1037bfcb8132SVladimir Oltean int (*port_change_mtu)(struct dsa_switch *ds, int port, 1038bfcb8132SVladimir Oltean int new_mtu); 1039bfcb8132SVladimir Oltean int (*port_max_mtu)(struct dsa_switch *ds, int port); 1040058102a6STobias Waldekranz 1041058102a6STobias Waldekranz /* 1042058102a6STobias Waldekranz * LAG integration 1043058102a6STobias Waldekranz */ 1044058102a6STobias Waldekranz int (*port_lag_change)(struct dsa_switch *ds, int port); 1045058102a6STobias Waldekranz int (*port_lag_join)(struct dsa_switch *ds, int port, 1046058102a6STobias Waldekranz struct net_device *lag, 1047058102a6STobias Waldekranz struct netdev_lag_upper_info *info); 1048058102a6STobias Waldekranz int (*port_lag_leave)(struct dsa_switch *ds, int port, 1049058102a6STobias Waldekranz struct net_device *lag); 105018596f50SGeorge McCollister 105118596f50SGeorge McCollister /* 105218596f50SGeorge McCollister * HSR integration 105318596f50SGeorge McCollister */ 105418596f50SGeorge McCollister int (*port_hsr_join)(struct dsa_switch *ds, int port, 105518596f50SGeorge McCollister struct net_device *hsr); 105618596f50SGeorge McCollister int (*port_hsr_leave)(struct dsa_switch *ds, int port, 105718596f50SGeorge McCollister struct net_device *hsr); 1058c595c433SHoratiu Vultur 1059c595c433SHoratiu Vultur /* 1060c595c433SHoratiu Vultur * MRP integration 1061c595c433SHoratiu Vultur */ 1062c595c433SHoratiu Vultur int (*port_mrp_add)(struct dsa_switch *ds, int port, 1063c595c433SHoratiu Vultur const struct switchdev_obj_mrp *mrp); 1064c595c433SHoratiu Vultur int (*port_mrp_del)(struct dsa_switch *ds, int port, 1065c595c433SHoratiu Vultur const struct switchdev_obj_mrp *mrp); 1066c595c433SHoratiu Vultur int (*port_mrp_add_ring_role)(struct dsa_switch *ds, int port, 1067c595c433SHoratiu Vultur const struct switchdev_obj_ring_role_mrp *mrp); 1068c595c433SHoratiu Vultur int (*port_mrp_del_ring_role)(struct dsa_switch *ds, int port, 1069c595c433SHoratiu Vultur const struct switchdev_obj_ring_role_mrp *mrp); 10705da11eb4SVladimir Oltean 10715da11eb4SVladimir Oltean /* 10725da11eb4SVladimir Oltean * tag_8021q operations 10735da11eb4SVladimir Oltean */ 10745da11eb4SVladimir Oltean int (*tag_8021q_vlan_add)(struct dsa_switch *ds, int port, u16 vid, 10755da11eb4SVladimir Oltean u16 flags); 10765da11eb4SVladimir Oltean int (*tag_8021q_vlan_del)(struct dsa_switch *ds, int port, u16 vid); 1077295ab96fSVladimir Oltean 1078295ab96fSVladimir Oltean /* 1079295ab96fSVladimir Oltean * DSA master tracking operations 1080295ab96fSVladimir Oltean */ 1081295ab96fSVladimir Oltean void (*master_state_change)(struct dsa_switch *ds, 1082295ab96fSVladimir Oltean const struct net_device *master, 1083295ab96fSVladimir Oltean bool operational); 10846b297524SAndrew Lunn }; 10856b297524SAndrew Lunn 10866b297524SAndrew Lunn #define DSA_DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes) \ 10876b297524SAndrew Lunn DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, \ 10886b297524SAndrew Lunn dsa_devlink_param_get, dsa_devlink_param_set, NULL) 10896b297524SAndrew Lunn 10906b297524SAndrew Lunn int dsa_devlink_param_get(struct devlink *dl, u32 id, 10916b297524SAndrew Lunn struct devlink_param_gset_ctx *ctx); 10926b297524SAndrew Lunn int dsa_devlink_param_set(struct devlink *dl, u32 id, 10936b297524SAndrew Lunn struct devlink_param_gset_ctx *ctx); 10946b297524SAndrew Lunn int dsa_devlink_params_register(struct dsa_switch *ds, 10956b297524SAndrew Lunn const struct devlink_param *params, 10966b297524SAndrew Lunn size_t params_count); 10976b297524SAndrew Lunn void dsa_devlink_params_unregister(struct dsa_switch *ds, 10986b297524SAndrew Lunn const struct devlink_param *params, 10996b297524SAndrew Lunn size_t params_count); 11005cd73fbdSAndrew Lunn int dsa_devlink_resource_register(struct dsa_switch *ds, 11015cd73fbdSAndrew Lunn const char *resource_name, 11025cd73fbdSAndrew Lunn u64 resource_size, 11035cd73fbdSAndrew Lunn u64 resource_id, 11045cd73fbdSAndrew Lunn u64 parent_resource_id, 11055cd73fbdSAndrew Lunn const struct devlink_resource_size_params *size_params); 11065cd73fbdSAndrew Lunn 11075cd73fbdSAndrew Lunn void dsa_devlink_resources_unregister(struct dsa_switch *ds); 11085cd73fbdSAndrew Lunn 11095cd73fbdSAndrew Lunn void dsa_devlink_resource_occ_get_register(struct dsa_switch *ds, 11105cd73fbdSAndrew Lunn u64 resource_id, 11115cd73fbdSAndrew Lunn devlink_resource_occ_get_t *occ_get, 11125cd73fbdSAndrew Lunn void *occ_get_priv); 11135cd73fbdSAndrew Lunn void dsa_devlink_resource_occ_get_unregister(struct dsa_switch *ds, 11145cd73fbdSAndrew Lunn u64 resource_id); 111597c82c23SAndrew Lunn struct devlink_region * 111697c82c23SAndrew Lunn dsa_devlink_region_create(struct dsa_switch *ds, 111797c82c23SAndrew Lunn const struct devlink_region_ops *ops, 111897c82c23SAndrew Lunn u32 region_max_snapshots, u64 region_size); 111908156ba4SAndrew Lunn struct devlink_region * 112008156ba4SAndrew Lunn dsa_devlink_port_region_create(struct dsa_switch *ds, 112108156ba4SAndrew Lunn int port, 112208156ba4SAndrew Lunn const struct devlink_port_region_ops *ops, 112308156ba4SAndrew Lunn u32 region_max_snapshots, u64 region_size); 112497c82c23SAndrew Lunn void dsa_devlink_region_destroy(struct devlink_region *region); 112597c82c23SAndrew Lunn 1126e1eea811SVladimir Oltean struct dsa_port *dsa_port_from_netdev(struct net_device *netdev); 11275cd73fbdSAndrew Lunn 11286b297524SAndrew Lunn struct dsa_devlink_priv { 11296b297524SAndrew Lunn struct dsa_switch *ds; 1130c8f0b869SBen Hutchings }; 1131c8f0b869SBen Hutchings 1132ccc3e6b0SAndrew Lunn static inline struct dsa_switch *dsa_devlink_to_ds(struct devlink *dl) 1133ccc3e6b0SAndrew Lunn { 1134ccc3e6b0SAndrew Lunn struct dsa_devlink_priv *dl_priv = devlink_priv(dl); 1135ccc3e6b0SAndrew Lunn 1136ccc3e6b0SAndrew Lunn return dl_priv->ds; 1137ccc3e6b0SAndrew Lunn } 1138ccc3e6b0SAndrew Lunn 11397d1e2a10SAndrew Lunn static inline 11407d1e2a10SAndrew Lunn struct dsa_switch *dsa_devlink_port_to_ds(struct devlink_port *port) 11417d1e2a10SAndrew Lunn { 11427d1e2a10SAndrew Lunn struct devlink *dl = port->devlink; 11437d1e2a10SAndrew Lunn struct dsa_devlink_priv *dl_priv = devlink_priv(dl); 11447d1e2a10SAndrew Lunn 11457d1e2a10SAndrew Lunn return dl_priv->ds; 11467d1e2a10SAndrew Lunn } 11477d1e2a10SAndrew Lunn 11487d1e2a10SAndrew Lunn static inline int dsa_devlink_port_to_port(struct devlink_port *port) 11497d1e2a10SAndrew Lunn { 11507d1e2a10SAndrew Lunn return port->index; 11517d1e2a10SAndrew Lunn } 11527d1e2a10SAndrew Lunn 1153ab3d408dSFlorian Fainelli struct dsa_switch_driver { 1154ab3d408dSFlorian Fainelli struct list_head list; 1155a82f67afSFlorian Fainelli const struct dsa_switch_ops *ops; 1156ab3d408dSFlorian Fainelli }; 1157ab3d408dSFlorian Fainelli 115814b89f36SFlorian Fainelli struct net_device *dsa_dev_to_net_device(struct device *dev); 1159c8f0b869SBen Hutchings 116073a7ece8SVivien Didelot /* Keep inline for faster access in hot path */ 11619eb8eff0SVladimir Oltean static inline bool netdev_uses_dsa(const struct net_device *dev) 1162c6e970a0SAndrew Lunn { 1163c6e970a0SAndrew Lunn #if IS_ENABLED(CONFIG_NET_DSA) 1164717ffbfbSVivien Didelot return dev->dsa_ptr && dev->dsa_ptr->rcv; 1165c6e970a0SAndrew Lunn #endif 1166c6e970a0SAndrew Lunn return false; 1167c6e970a0SAndrew Lunn } 1168c6e970a0SAndrew Lunn 11699790cf20SVladimir Oltean /* All DSA tags that push the EtherType to the right (basically all except tail 11709790cf20SVladimir Oltean * tags, which don't break dissection) can be treated the same from the 11719790cf20SVladimir Oltean * perspective of the flow dissector. 11729790cf20SVladimir Oltean * 11739790cf20SVladimir Oltean * We need to return: 11749790cf20SVladimir Oltean * - offset: the (B - A) difference between: 11759790cf20SVladimir Oltean * A. the position of the real EtherType and 11769790cf20SVladimir Oltean * B. the current skb->data (aka ETH_HLEN bytes into the frame, aka 2 bytes 11779790cf20SVladimir Oltean * after the normal EtherType was supposed to be) 11789790cf20SVladimir Oltean * The offset in bytes is exactly equal to the tagger overhead (and half of 11799790cf20SVladimir Oltean * that, in __be16 shorts). 11809790cf20SVladimir Oltean * 11819790cf20SVladimir Oltean * - proto: the value of the real EtherType. 11829790cf20SVladimir Oltean */ 11839790cf20SVladimir Oltean static inline void dsa_tag_generic_flow_dissect(const struct sk_buff *skb, 11849790cf20SVladimir Oltean __be16 *proto, int *offset) 11859790cf20SVladimir Oltean { 11869790cf20SVladimir Oltean #if IS_ENABLED(CONFIG_NET_DSA) 11879790cf20SVladimir Oltean const struct dsa_device_ops *ops = skb->dev->dsa_ptr->tag_ops; 11884e500251SVladimir Oltean int tag_len = ops->needed_headroom; 11899790cf20SVladimir Oltean 11909790cf20SVladimir Oltean *offset = tag_len; 11919790cf20SVladimir Oltean *proto = ((__be16 *)skb->data)[(tag_len / 2) - 1]; 11929790cf20SVladimir Oltean #endif 11939790cf20SVladimir Oltean } 11949790cf20SVladimir Oltean 11954cfab356SFlorian Fainelli #if IS_ENABLED(CONFIG_NET_DSA) 11964cfab356SFlorian Fainelli static inline int __dsa_netdevice_ops_check(struct net_device *dev) 11974cfab356SFlorian Fainelli { 11984cfab356SFlorian Fainelli int err = -EOPNOTSUPP; 11994cfab356SFlorian Fainelli 12004cfab356SFlorian Fainelli if (!dev->dsa_ptr) 12014cfab356SFlorian Fainelli return err; 12024cfab356SFlorian Fainelli 12034cfab356SFlorian Fainelli if (!dev->dsa_ptr->netdev_ops) 12044cfab356SFlorian Fainelli return err; 12054cfab356SFlorian Fainelli 12064cfab356SFlorian Fainelli return 0; 12074cfab356SFlorian Fainelli } 12084cfab356SFlorian Fainelli 1209a7605370SArnd Bergmann static inline int dsa_ndo_eth_ioctl(struct net_device *dev, struct ifreq *ifr, 12104cfab356SFlorian Fainelli int cmd) 12114cfab356SFlorian Fainelli { 12124cfab356SFlorian Fainelli const struct dsa_netdevice_ops *ops; 12134cfab356SFlorian Fainelli int err; 12144cfab356SFlorian Fainelli 12154cfab356SFlorian Fainelli err = __dsa_netdevice_ops_check(dev); 12164cfab356SFlorian Fainelli if (err) 12174cfab356SFlorian Fainelli return err; 12184cfab356SFlorian Fainelli 12194cfab356SFlorian Fainelli ops = dev->dsa_ptr->netdev_ops; 12204cfab356SFlorian Fainelli 1221a7605370SArnd Bergmann return ops->ndo_eth_ioctl(dev, ifr, cmd); 12224cfab356SFlorian Fainelli } 12234cfab356SFlorian Fainelli #else 1224a7605370SArnd Bergmann static inline int dsa_ndo_eth_ioctl(struct net_device *dev, struct ifreq *ifr, 12254cfab356SFlorian Fainelli int cmd) 12264cfab356SFlorian Fainelli { 12274cfab356SFlorian Fainelli return -EOPNOTSUPP; 12284cfab356SFlorian Fainelli } 12294cfab356SFlorian Fainelli #endif 12304cfab356SFlorian Fainelli 123183c0afaeSAndrew Lunn void dsa_unregister_switch(struct dsa_switch *ds); 123223c9ee49SVivien Didelot int dsa_register_switch(struct dsa_switch *ds); 12330650bf52SVladimir Oltean void dsa_switch_shutdown(struct dsa_switch *ds); 12343b7bc1f0SVladimir Oltean struct dsa_switch *dsa_switch_find(int tree_index, int sw_index); 1235ea825e70SFlorian Fainelli #ifdef CONFIG_PM_SLEEP 1236ea825e70SFlorian Fainelli int dsa_switch_suspend(struct dsa_switch *ds); 1237ea825e70SFlorian Fainelli int dsa_switch_resume(struct dsa_switch *ds); 1238ea825e70SFlorian Fainelli #else 1239ea825e70SFlorian Fainelli static inline int dsa_switch_suspend(struct dsa_switch *ds) 1240ea825e70SFlorian Fainelli { 1241ea825e70SFlorian Fainelli return 0; 1242ea825e70SFlorian Fainelli } 1243ea825e70SFlorian Fainelli static inline int dsa_switch_resume(struct dsa_switch *ds) 1244ea825e70SFlorian Fainelli { 1245ea825e70SFlorian Fainelli return 0; 1246ea825e70SFlorian Fainelli } 1247ea825e70SFlorian Fainelli #endif /* CONFIG_PM_SLEEP */ 1248ea825e70SFlorian Fainelli 124960724d4bSFlorian Fainelli #if IS_ENABLED(CONFIG_NET_DSA) 1250a5e3c9baSVladimir Oltean bool dsa_slave_dev_check(const struct net_device *dev); 125160724d4bSFlorian Fainelli #else 1252a5e3c9baSVladimir Oltean static inline bool dsa_slave_dev_check(const struct net_device *dev) 1253a5e3c9baSVladimir Oltean { 1254a5e3c9baSVladimir Oltean return false; 1255a5e3c9baSVladimir Oltean } 125660724d4bSFlorian Fainelli #endif 125760724d4bSFlorian Fainelli 125897a69a0dSVladimir Oltean netdev_tx_t dsa_enqueue_skb(struct sk_buff *skb, struct net_device *dev); 1259cf963573SFlorian Fainelli int dsa_port_get_phy_strings(struct dsa_port *dp, uint8_t *data); 1260cf963573SFlorian Fainelli int dsa_port_get_ethtool_phy_stats(struct dsa_port *dp, uint64_t *data); 1261cf963573SFlorian Fainelli int dsa_port_get_phy_sset_count(struct dsa_port *dp); 126211d8f3ddSFlorian Fainelli void dsa_port_phylink_mac_change(struct dsa_switch *ds, int port, bool up); 1263cf963573SFlorian Fainelli 1264d3b8c049SAndrew Lunn struct dsa_tag_driver { 1265d3b8c049SAndrew Lunn const struct dsa_device_ops *ops; 1266d3b8c049SAndrew Lunn struct list_head list; 1267d3b8c049SAndrew Lunn struct module *owner; 1268d3b8c049SAndrew Lunn }; 1269d3b8c049SAndrew Lunn 1270d3b8c049SAndrew Lunn void dsa_tag_drivers_register(struct dsa_tag_driver *dsa_tag_driver_array[], 1271d3b8c049SAndrew Lunn unsigned int count, 1272d3b8c049SAndrew Lunn struct module *owner); 1273d3b8c049SAndrew Lunn void dsa_tag_drivers_unregister(struct dsa_tag_driver *dsa_tag_driver_array[], 1274d3b8c049SAndrew Lunn unsigned int count); 1275d3b8c049SAndrew Lunn 1276d3b8c049SAndrew Lunn #define dsa_tag_driver_module_drivers(__dsa_tag_drivers_array, __count) \ 1277d3b8c049SAndrew Lunn static int __init dsa_tag_driver_module_init(void) \ 1278d3b8c049SAndrew Lunn { \ 1279d3b8c049SAndrew Lunn dsa_tag_drivers_register(__dsa_tag_drivers_array, __count, \ 1280d3b8c049SAndrew Lunn THIS_MODULE); \ 1281d3b8c049SAndrew Lunn return 0; \ 1282d3b8c049SAndrew Lunn } \ 1283d3b8c049SAndrew Lunn module_init(dsa_tag_driver_module_init); \ 1284d3b8c049SAndrew Lunn \ 1285d3b8c049SAndrew Lunn static void __exit dsa_tag_driver_module_exit(void) \ 1286d3b8c049SAndrew Lunn { \ 1287d3b8c049SAndrew Lunn dsa_tag_drivers_unregister(__dsa_tag_drivers_array, __count); \ 1288d3b8c049SAndrew Lunn } \ 1289d3b8c049SAndrew Lunn module_exit(dsa_tag_driver_module_exit) 1290d3b8c049SAndrew Lunn 1291d3b8c049SAndrew Lunn /** 1292d3b8c049SAndrew Lunn * module_dsa_tag_drivers() - Helper macro for registering DSA tag 1293d3b8c049SAndrew Lunn * drivers 1294c7d9a675SLuiz Angelo Daros de Luca * @__ops_array: Array of tag driver structures 1295d3b8c049SAndrew Lunn * 1296d3b8c049SAndrew Lunn * Helper macro for DSA tag drivers which do not do anything special 1297d3b8c049SAndrew Lunn * in module init/exit. Each module may only use this macro once, and 1298d3b8c049SAndrew Lunn * calling it replaces module_init() and module_exit(). 1299d3b8c049SAndrew Lunn */ 1300d3b8c049SAndrew Lunn #define module_dsa_tag_drivers(__ops_array) \ 1301d3b8c049SAndrew Lunn dsa_tag_driver_module_drivers(__ops_array, ARRAY_SIZE(__ops_array)) 1302d3b8c049SAndrew Lunn 1303d3b8c049SAndrew Lunn #define DSA_TAG_DRIVER_NAME(__ops) dsa_tag_driver ## _ ## __ops 1304d3b8c049SAndrew Lunn 1305d3b8c049SAndrew Lunn /* Create a static structure we can build a linked list of dsa_tag 1306d3b8c049SAndrew Lunn * drivers 1307d3b8c049SAndrew Lunn */ 1308d3b8c049SAndrew Lunn #define DSA_TAG_DRIVER(__ops) \ 1309d3b8c049SAndrew Lunn static struct dsa_tag_driver DSA_TAG_DRIVER_NAME(__ops) = { \ 1310d3b8c049SAndrew Lunn .ops = &__ops, \ 1311d3b8c049SAndrew Lunn } 1312d3b8c049SAndrew Lunn 1313d3b8c049SAndrew Lunn /** 1314d3b8c049SAndrew Lunn * module_dsa_tag_driver() - Helper macro for registering a single DSA tag 1315d3b8c049SAndrew Lunn * driver 1316d3b8c049SAndrew Lunn * @__ops: Single tag driver structures 1317d3b8c049SAndrew Lunn * 1318d3b8c049SAndrew Lunn * Helper macro for DSA tag drivers which do not do anything special 1319d3b8c049SAndrew Lunn * in module init/exit. Each module may only use this macro once, and 1320d3b8c049SAndrew Lunn * calling it replaces module_init() and module_exit(). 1321d3b8c049SAndrew Lunn */ 1322d3b8c049SAndrew Lunn #define module_dsa_tag_driver(__ops) \ 1323d3b8c049SAndrew Lunn DSA_TAG_DRIVER(__ops); \ 1324d3b8c049SAndrew Lunn \ 1325d3b8c049SAndrew Lunn static struct dsa_tag_driver *dsa_tag_driver_array[] = { \ 1326d3b8c049SAndrew Lunn &DSA_TAG_DRIVER_NAME(__ops) \ 1327d3b8c049SAndrew Lunn }; \ 1328d3b8c049SAndrew Lunn module_dsa_tag_drivers(dsa_tag_driver_array) 132991da11f8SLennert Buytenhek #endif 1330d3b8c049SAndrew Lunn 1331