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 53*4913b8ebSVladimir Oltean #define DSA_TAG_PROTO_SJA1110_VALUE 23 540b42f033SAndrew Lunn 55ac7a04c3SFlorian Fainelli enum dsa_tag_protocol { 560b42f033SAndrew Lunn DSA_TAG_PROTO_NONE = DSA_TAG_PROTO_NONE_VALUE, 570b42f033SAndrew Lunn DSA_TAG_PROTO_BRCM = DSA_TAG_PROTO_BRCM_VALUE, 58964dbf18SÁlvaro Fernández Rojas DSA_TAG_PROTO_BRCM_LEGACY = DSA_TAG_PROTO_BRCM_LEGACY_VALUE, 590b42f033SAndrew Lunn DSA_TAG_PROTO_BRCM_PREPEND = DSA_TAG_PROTO_BRCM_PREPEND_VALUE, 600b42f033SAndrew Lunn DSA_TAG_PROTO_DSA = DSA_TAG_PROTO_DSA_VALUE, 610b42f033SAndrew Lunn DSA_TAG_PROTO_EDSA = DSA_TAG_PROTO_EDSA_VALUE, 620b42f033SAndrew Lunn DSA_TAG_PROTO_GSWIP = DSA_TAG_PROTO_GSWIP_VALUE, 630b42f033SAndrew Lunn DSA_TAG_PROTO_KSZ9477 = DSA_TAG_PROTO_KSZ9477_VALUE, 640b42f033SAndrew Lunn DSA_TAG_PROTO_KSZ9893 = DSA_TAG_PROTO_KSZ9893_VALUE, 650b42f033SAndrew Lunn DSA_TAG_PROTO_LAN9303 = DSA_TAG_PROTO_LAN9303_VALUE, 660b42f033SAndrew Lunn DSA_TAG_PROTO_MTK = DSA_TAG_PROTO_MTK_VALUE, 670b42f033SAndrew Lunn DSA_TAG_PROTO_QCA = DSA_TAG_PROTO_QCA_VALUE, 680b42f033SAndrew Lunn DSA_TAG_PROTO_TRAILER = DSA_TAG_PROTO_TRAILER_VALUE, 69f9bbe447SVladimir Oltean DSA_TAG_PROTO_8021Q = DSA_TAG_PROTO_8021Q_VALUE, 70227d07a0SVladimir Oltean DSA_TAG_PROTO_SJA1105 = DSA_TAG_PROTO_SJA1105_VALUE, 71016e43a2STristram Ha DSA_TAG_PROTO_KSZ8795 = DSA_TAG_PROTO_KSZ8795_VALUE, 728dce89aaSVladimir Oltean DSA_TAG_PROTO_OCELOT = DSA_TAG_PROTO_OCELOT_VALUE, 7348fda74fSOleksij Rempel DSA_TAG_PROTO_AR9331 = DSA_TAG_PROTO_AR9331_VALUE, 74efd7fe68SLinus Walleij DSA_TAG_PROTO_RTL4_A = DSA_TAG_PROTO_RTL4_A_VALUE, 7501ef09caSKurt Kanzenbach DSA_TAG_PROTO_HELLCREEK = DSA_TAG_PROTO_HELLCREEK_VALUE, 7654a52823SGeorge McCollister DSA_TAG_PROTO_XRS700X = DSA_TAG_PROTO_XRS700X_VALUE, 777c83a7c5SVladimir Oltean DSA_TAG_PROTO_OCELOT_8021Q = DSA_TAG_PROTO_OCELOT_8021Q_VALUE, 787c4bb540SVladimir Oltean DSA_TAG_PROTO_SEVILLE = DSA_TAG_PROTO_SEVILLE_VALUE, 79*4913b8ebSVladimir Oltean DSA_TAG_PROTO_SJA1110 = DSA_TAG_PROTO_SJA1110_VALUE, 80ac7a04c3SFlorian Fainelli }; 815037d532SFlorian Fainelli 825075314eSAlexander Duyck struct packet_type; 8390af1059SBrandon Streiff struct dsa_switch; 843e8a72d1SFlorian Fainelli 8568277a2cSJohn Crispin struct dsa_device_ops { 8668277a2cSJohn Crispin struct sk_buff *(*xmit)(struct sk_buff *skb, struct net_device *dev); 8768277a2cSJohn Crispin struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev, 8889e49506SFlorian Westphal struct packet_type *pt); 892e8cb1b3SVladimir Oltean void (*flow_dissect)(const struct sk_buff *skb, __be16 *proto, 90598a9680SJohn Crispin int *offset); 91cc1939e4SVladimir Oltean /* Used to determine which traffic should match the DSA filter in 92cc1939e4SVladimir Oltean * eth_type_trans, and which, if any, should bypass it and be processed 93cc1939e4SVladimir Oltean * as regular on the master net device. 94cc1939e4SVladimir Oltean */ 95cc1939e4SVladimir Oltean bool (*filter)(const struct sk_buff *skb, struct net_device *dev); 964e500251SVladimir Oltean unsigned int needed_headroom; 974e500251SVladimir Oltean unsigned int needed_tailroom; 98875138f8SAndrew Lunn const char *name; 99056eed2fSAndrew Lunn enum dsa_tag_protocol proto; 100c3975400SVladimir Oltean /* Some tagging protocols either mangle or shift the destination MAC 101c3975400SVladimir Oltean * address, in which case the DSA master would drop packets on ingress 102c3975400SVladimir Oltean * if what it understands out of the destination MAC address is not in 103c3975400SVladimir Oltean * its RX filter. 104c3975400SVladimir Oltean */ 105c3975400SVladimir Oltean bool promisc_on_master; 10668277a2cSJohn Crispin }; 10768277a2cSJohn Crispin 1084cfab356SFlorian Fainelli /* This structure defines the control interfaces that are overlayed by the 1094cfab356SFlorian Fainelli * DSA layer on top of the DSA CPU/management net_device instance. This is 1104cfab356SFlorian Fainelli * used by the core net_device layer while calling various net_device_ops 1114cfab356SFlorian Fainelli * function pointers. 1124cfab356SFlorian Fainelli */ 1134cfab356SFlorian Fainelli struct dsa_netdevice_ops { 1144cfab356SFlorian Fainelli int (*ndo_do_ioctl)(struct net_device *dev, struct ifreq *ifr, 1154cfab356SFlorian Fainelli int cmd); 1164cfab356SFlorian Fainelli }; 1174cfab356SFlorian Fainelli 1180b42f033SAndrew Lunn #define DSA_TAG_DRIVER_ALIAS "dsa_tag-" 1190b42f033SAndrew Lunn #define MODULE_ALIAS_DSA_TAG_DRIVER(__proto) \ 1200b42f033SAndrew Lunn MODULE_ALIAS(DSA_TAG_DRIVER_ALIAS __stringify(__proto##_VALUE)) 1210b42f033SAndrew Lunn 122cf50dcc2SBen Hutchings struct dsa_switch_tree { 12383c0afaeSAndrew Lunn struct list_head list; 12483c0afaeSAndrew Lunn 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 13483c0afaeSAndrew Lunn /* Has this tree been applied to the hardware? */ 135ec15dd42SVivien Didelot bool setup; 13683c0afaeSAndrew Lunn 137357f203bSVladimir Oltean /* Tagging protocol operations */ 138357f203bSVladimir Oltean const struct dsa_device_ops *tag_ops; 139357f203bSVladimir Oltean 140deff7107STobias Waldekranz /* Default tagging protocol preferred by the switches in this 141deff7107STobias Waldekranz * tree. 142deff7107STobias Waldekranz */ 143deff7107STobias Waldekranz enum dsa_tag_protocol default_proto; 144deff7107STobias Waldekranz 145cf50dcc2SBen Hutchings /* 146cf50dcc2SBen Hutchings * Configuration data for the platform device that owns 147cf50dcc2SBen Hutchings * this dsa switch tree instance. 148cf50dcc2SBen Hutchings */ 149cf50dcc2SBen Hutchings struct dsa_platform_data *pd; 150cf85d08fSLennert Buytenhek 151ab8ccae1SVivien Didelot /* List of switch ports */ 152ab8ccae1SVivien Didelot struct list_head ports; 153ab8ccae1SVivien Didelot 154c5f51765SVivien Didelot /* List of DSA links composing the routing table */ 155c5f51765SVivien Didelot struct list_head rtable; 156058102a6STobias Waldekranz 157058102a6STobias Waldekranz /* Maps offloaded LAG netdevs to a zero-based linear ID for 158058102a6STobias Waldekranz * drivers that need it. 159058102a6STobias Waldekranz */ 160058102a6STobias Waldekranz struct net_device **lags; 161058102a6STobias Waldekranz unsigned int lags_len; 162cf50dcc2SBen Hutchings }; 163cf50dcc2SBen Hutchings 164058102a6STobias Waldekranz #define dsa_lags_foreach_id(_id, _dst) \ 165058102a6STobias Waldekranz for ((_id) = 0; (_id) < (_dst)->lags_len; (_id)++) \ 166058102a6STobias Waldekranz if ((_dst)->lags[(_id)]) 167058102a6STobias Waldekranz 168058102a6STobias Waldekranz #define dsa_lag_foreach_port(_dp, _dst, _lag) \ 169058102a6STobias Waldekranz list_for_each_entry((_dp), &(_dst)->ports, list) \ 170058102a6STobias Waldekranz if ((_dp)->lag_dev == (_lag)) 171058102a6STobias Waldekranz 17218596f50SGeorge McCollister #define dsa_hsr_foreach_port(_dp, _ds, _hsr) \ 17318596f50SGeorge McCollister list_for_each_entry((_dp), &(_ds)->dst->ports, list) \ 17418596f50SGeorge McCollister if ((_dp)->ds == (_ds) && (_dp)->hsr_dev == (_hsr)) 17518596f50SGeorge McCollister 176058102a6STobias Waldekranz static inline struct net_device *dsa_lag_dev(struct dsa_switch_tree *dst, 177058102a6STobias Waldekranz unsigned int id) 178058102a6STobias Waldekranz { 179058102a6STobias Waldekranz return dst->lags[id]; 180058102a6STobias Waldekranz } 181058102a6STobias Waldekranz 182058102a6STobias Waldekranz static inline int dsa_lag_id(struct dsa_switch_tree *dst, 183058102a6STobias Waldekranz struct net_device *lag) 184058102a6STobias Waldekranz { 185058102a6STobias Waldekranz unsigned int id; 186058102a6STobias Waldekranz 187058102a6STobias Waldekranz dsa_lags_foreach_id(id, dst) { 188058102a6STobias Waldekranz if (dsa_lag_dev(dst, id) == lag) 189058102a6STobias Waldekranz return id; 190058102a6STobias Waldekranz } 191058102a6STobias Waldekranz 192058102a6STobias Waldekranz return -ENODEV; 193058102a6STobias Waldekranz } 194058102a6STobias Waldekranz 19534297176SVladimir Oltean /* TC matchall action types */ 196f50f2127SFlorian Fainelli enum dsa_port_mall_action_type { 197f50f2127SFlorian Fainelli DSA_PORT_MALL_MIRROR, 19834297176SVladimir Oltean DSA_PORT_MALL_POLICER, 199f50f2127SFlorian Fainelli }; 200f50f2127SFlorian Fainelli 201f50f2127SFlorian Fainelli /* TC mirroring entry */ 202f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry { 203f50f2127SFlorian Fainelli u8 to_local_port; 204f50f2127SFlorian Fainelli bool ingress; 205f50f2127SFlorian Fainelli }; 206f50f2127SFlorian Fainelli 20734297176SVladimir Oltean /* TC port policer entry */ 20834297176SVladimir Oltean struct dsa_mall_policer_tc_entry { 2095f035af7SPo Liu u32 burst; 21034297176SVladimir Oltean u64 rate_bytes_per_sec; 21134297176SVladimir Oltean }; 21234297176SVladimir Oltean 213f50f2127SFlorian Fainelli /* TC matchall entry */ 214f50f2127SFlorian Fainelli struct dsa_mall_tc_entry { 215f50f2127SFlorian Fainelli struct list_head list; 216f50f2127SFlorian Fainelli unsigned long cookie; 217f50f2127SFlorian Fainelli enum dsa_port_mall_action_type type; 218f50f2127SFlorian Fainelli union { 219f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry mirror; 22034297176SVladimir Oltean struct dsa_mall_policer_tc_entry policer; 221f50f2127SFlorian Fainelli }; 222f50f2127SFlorian Fainelli }; 223f50f2127SFlorian Fainelli 224f50f2127SFlorian Fainelli 225c8b09808SAndrew Lunn struct dsa_port { 226f8b8b1cdSVivien Didelot /* A CPU port is physically connected to a master device. 227f8b8b1cdSVivien Didelot * A user port exposed to userspace has a slave device. 228f8b8b1cdSVivien Didelot */ 229f8b8b1cdSVivien Didelot union { 230f8b8b1cdSVivien Didelot struct net_device *master; 231f8b8b1cdSVivien Didelot struct net_device *slave; 232f8b8b1cdSVivien Didelot }; 233f8b8b1cdSVivien Didelot 234357f203bSVladimir Oltean /* Copy of the tagging protocol operations, for quicker access 235357f203bSVladimir Oltean * in the data path. Valid only for the CPU ports. 236357f203bSVladimir Oltean */ 23715240248SVivien Didelot const struct dsa_device_ops *tag_ops; 23815240248SVivien Didelot 2393e41f93bSVivien Didelot /* Copies for faster access in master receive hot path */ 2403e41f93bSVivien Didelot struct dsa_switch_tree *dst; 2413e41f93bSVivien Didelot struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev, 2423e41f93bSVivien Didelot struct packet_type *pt); 243cc1939e4SVladimir Oltean bool (*filter)(const struct sk_buff *skb, struct net_device *dev); 2443e41f93bSVivien Didelot 245057cad2cSVivien Didelot enum { 246057cad2cSVivien Didelot DSA_PORT_TYPE_UNUSED = 0, 247057cad2cSVivien Didelot DSA_PORT_TYPE_CPU, 248057cad2cSVivien Didelot DSA_PORT_TYPE_DSA, 249057cad2cSVivien Didelot DSA_PORT_TYPE_USER, 250057cad2cSVivien Didelot } type; 251057cad2cSVivien Didelot 252818be848SVivien Didelot struct dsa_switch *ds; 253818be848SVivien Didelot unsigned int index; 25471e0bbdeSFlorian Fainelli const char *name; 25568b2d4a8SVivien Didelot struct dsa_port *cpu_dp; 25683216e39SMichael Walle u8 mac[ETH_ALEN]; 257189b0d93SAndrew Lunn struct device_node *dn; 25834a79f63SVivien Didelot unsigned int ageing_time; 25933162e9aSVladimir Oltean bool vlan_filtering; 260732f794cSVivien Didelot u8 stp_state; 261a5e9a02eSVivien Didelot struct net_device *bridge_dev; 26296567d5dSAndrew Lunn struct devlink_port devlink_port; 2633122433eSAndrew Lunn bool devlink_port_setup; 264aab9c406SFlorian Fainelli struct phylink *pl; 26544cc27e4SIoana Ciornei struct phylink_config pl_config; 266058102a6STobias Waldekranz struct net_device *lag_dev; 267058102a6STobias Waldekranz bool lag_tx_enabled; 26818596f50SGeorge McCollister struct net_device *hsr_dev; 26997a69a0dSVladimir Oltean 270ab8ccae1SVivien Didelot struct list_head list; 271ab8ccae1SVivien Didelot 27267dbb9d4SFlorian Fainelli /* 273c362beb0SVladimir Oltean * Give the switch driver somewhere to hang its per-port private data 274c362beb0SVladimir Oltean * structures (accessible from the tagger). 275c362beb0SVladimir Oltean */ 276c362beb0SVladimir Oltean void *priv; 277c362beb0SVladimir Oltean 278c362beb0SVladimir Oltean /* 27967dbb9d4SFlorian Fainelli * Original copy of the master netdev ethtool_ops 28067dbb9d4SFlorian Fainelli */ 28167dbb9d4SFlorian Fainelli const struct ethtool_ops *orig_ethtool_ops; 282da7b9e9bSFlorian Fainelli 283da7b9e9bSFlorian Fainelli /* 284da7b9e9bSFlorian Fainelli * Original copy of the master netdev net_device_ops 285da7b9e9bSFlorian Fainelli */ 2864cfab356SFlorian Fainelli const struct dsa_netdevice_ops *netdev_ops; 287fb35c60cSVivien Didelot 288fb35c60cSVivien Didelot bool setup; 289c8b09808SAndrew Lunn }; 290c8b09808SAndrew Lunn 291c5f51765SVivien Didelot /* TODO: ideally DSA ports would have a single dp->link_dp member, 292c5f51765SVivien Didelot * and no dst->rtable nor this struct dsa_link would be needed, 293c5f51765SVivien Didelot * but this would require some more complex tree walking, 294c5f51765SVivien Didelot * so keep it stupid at the moment and list them all. 295c5f51765SVivien Didelot */ 296c5f51765SVivien Didelot struct dsa_link { 297c5f51765SVivien Didelot struct dsa_port *dp; 298c5f51765SVivien Didelot struct dsa_port *link_dp; 299c5f51765SVivien Didelot struct list_head list; 300c5f51765SVivien Didelot }; 301c5f51765SVivien Didelot 302c8f0b869SBen Hutchings struct dsa_switch { 303fb35c60cSVivien Didelot bool setup; 304fb35c60cSVivien Didelot 305c33063d6SAndrew Lunn struct device *dev; 306c33063d6SAndrew Lunn 307c8f0b869SBen Hutchings /* 308c8f0b869SBen Hutchings * Parent switch tree, and switch index. 309c8f0b869SBen Hutchings */ 310c8f0b869SBen Hutchings struct dsa_switch_tree *dst; 31199feaafcSVivien Didelot unsigned int index; 312c8f0b869SBen Hutchings 313f515f192SVivien Didelot /* Listener for switch fabric events */ 314f515f192SVivien Didelot struct notifier_block nb; 315f515f192SVivien Didelot 316c8f0b869SBen Hutchings /* 3177543a6d5SAndrew Lunn * Give the switch driver somewhere to hang its private data 3187543a6d5SAndrew Lunn * structure. 3197543a6d5SAndrew Lunn */ 3207543a6d5SAndrew Lunn void *priv; 3217543a6d5SAndrew Lunn 3227543a6d5SAndrew Lunn /* 323c8f0b869SBen Hutchings * Configuration data for this switch. 324c8f0b869SBen Hutchings */ 325ff04955cSAndrew Lunn struct dsa_chip_data *cd; 326c8f0b869SBen Hutchings 327c8f0b869SBen Hutchings /* 3289d490b4eSVivien Didelot * The switch operations. 329c8f0b869SBen Hutchings */ 330a82f67afSFlorian Fainelli const struct dsa_switch_ops *ops; 331c8f0b869SBen Hutchings 33266472fc0SAndrew Lunn /* 333c8f0b869SBen Hutchings * Slave mii_bus and devices for the individual ports. 334c8f0b869SBen Hutchings */ 3350d8bcdd3SFlorian Fainelli u32 phys_mii_mask; 336c8f0b869SBen Hutchings struct mii_bus *slave_mii_bus; 337a0c02161SVivien Didelot 3380f3da6afSVivien Didelot /* Ageing Time limits in msecs */ 3390f3da6afSVivien Didelot unsigned int ageing_time_min; 3400f3da6afSVivien Didelot unsigned int ageing_time_max; 3410f3da6afSVivien Didelot 34296567d5dSAndrew Lunn /* devlink used to represent this switch device */ 34396567d5dSAndrew Lunn struct devlink *devlink; 34496567d5dSAndrew Lunn 34555199df6SFlorian Fainelli /* Number of switch port queues */ 34655199df6SFlorian Fainelli unsigned int num_tx_queues; 34755199df6SFlorian Fainelli 3488f5d16f6SVladimir Oltean /* Disallow bridge core from requesting different VLAN awareness 3498f5d16f6SVladimir Oltean * settings on ports if not hardware-supported 3508f5d16f6SVladimir Oltean */ 3518f5d16f6SVladimir Oltean bool vlan_filtering_is_global; 3528f5d16f6SVladimir Oltean 35354a0ed0dSRussell King /* Pass .port_vlan_add and .port_vlan_del to drivers even for bridges 35454a0ed0dSRussell King * that have vlan_filtering=0. All drivers should ideally set this (and 35554a0ed0dSRussell King * then the option would get removed), but it is unknown whether this 35654a0ed0dSRussell King * would break things or not. 35754a0ed0dSRussell King */ 35854a0ed0dSRussell King bool configure_vlan_while_not_filtering; 35954a0ed0dSRussell King 3601dc0408cSFlorian Fainelli /* If the switch driver always programs the CPU port as egress tagged 3611dc0408cSFlorian Fainelli * despite the VLAN configuration indicating otherwise, then setting 3621dc0408cSFlorian Fainelli * @untag_bridge_pvid will force the DSA receive path to pop the bridge's 3631dc0408cSFlorian Fainelli * default_pvid VLAN tagged frames to offer a consistent behavior 3641dc0408cSFlorian Fainelli * between a vlan_filtering=0 and vlan_filtering=1 bridge device. 3651dc0408cSFlorian Fainelli */ 3661dc0408cSFlorian Fainelli bool untag_bridge_pvid; 3671dc0408cSFlorian Fainelli 368d5f19486SVladimir Oltean /* Let DSA manage the FDB entries towards the CPU, based on the 369d5f19486SVladimir Oltean * software bridge database. 370d5f19486SVladimir Oltean */ 371d5f19486SVladimir Oltean bool assisted_learning_on_cpu_port; 372d5f19486SVladimir Oltean 37314574676SVladimir Oltean /* In case vlan_filtering_is_global is set, the VLAN awareness state 37414574676SVladimir Oltean * should be retrieved from here and not from the per-port settings. 37514574676SVladimir Oltean */ 37614574676SVladimir Oltean bool vlan_filtering; 37714574676SVladimir Oltean 378787cac3fSVladimir Oltean /* MAC PCS does not provide link state change interrupt, and requires 379787cac3fSVladimir Oltean * polling. Flag passed on to PHYLINK. 380787cac3fSVladimir Oltean */ 381787cac3fSVladimir Oltean bool pcs_poll; 382787cac3fSVladimir Oltean 383bff33f7eSVladimir Oltean /* For switches that only have the MRU configurable. To ensure the 384bff33f7eSVladimir Oltean * configured MTU is not exceeded, normalization of MRU on all bridged 385bff33f7eSVladimir Oltean * interfaces is needed. 386bff33f7eSVladimir Oltean */ 387bff33f7eSVladimir Oltean bool mtu_enforcement_ingress; 388bff33f7eSVladimir Oltean 389058102a6STobias Waldekranz /* Drivers that benefit from having an ID associated with each 390058102a6STobias Waldekranz * offloaded LAG should set this to the maximum number of 391058102a6STobias Waldekranz * supported IDs. DSA will then maintain a mapping of _at 392058102a6STobias Waldekranz * least_ these many IDs, accessible to drivers via 393058102a6STobias Waldekranz * dsa_lag_id(). 394058102a6STobias Waldekranz */ 395058102a6STobias Waldekranz unsigned int num_lag_ids; 396058102a6STobias Waldekranz 397a0c02161SVivien Didelot size_t num_ports; 398c8f0b869SBen Hutchings }; 399c8f0b869SBen Hutchings 40068bb8ea8SVivien Didelot static inline struct dsa_port *dsa_to_port(struct dsa_switch *ds, int p) 401c38c5a66SVivien Didelot { 402b96ddf25SVivien Didelot struct dsa_switch_tree *dst = ds->dst; 403d607525bSVivien Didelot struct dsa_port *dp; 404b96ddf25SVivien Didelot 405b96ddf25SVivien Didelot list_for_each_entry(dp, &dst->ports, list) 406b96ddf25SVivien Didelot if (dp->ds == ds && dp->index == p) 407b96ddf25SVivien Didelot return dp; 408d607525bSVivien Didelot 409d607525bSVivien Didelot return NULL; 410c38c5a66SVivien Didelot } 411c38c5a66SVivien Didelot 412bff7b688SVivien Didelot static inline bool dsa_is_unused_port(struct dsa_switch *ds, int p) 413bff7b688SVivien Didelot { 414c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_UNUSED; 415bff7b688SVivien Didelot } 416bff7b688SVivien Didelot 417c8f0b869SBen Hutchings static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p) 418c8f0b869SBen Hutchings { 419c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_CPU; 420c8f0b869SBen Hutchings } 421c8f0b869SBen Hutchings 42260045cbfSAndrew Lunn static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p) 42360045cbfSAndrew Lunn { 424c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_DSA; 42560045cbfSAndrew Lunn } 42660045cbfSAndrew Lunn 4272b3e9891SVivien Didelot static inline bool dsa_is_user_port(struct dsa_switch *ds, int p) 4286cd456f3SVivien Didelot { 429c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_USER; 4306cd456f3SVivien Didelot } 4316cd456f3SVivien Didelot 43202bc6e54SVivien Didelot static inline u32 dsa_user_ports(struct dsa_switch *ds) 43302bc6e54SVivien Didelot { 434c38c5a66SVivien Didelot u32 mask = 0; 435c38c5a66SVivien Didelot int p; 43602bc6e54SVivien Didelot 437c38c5a66SVivien Didelot for (p = 0; p < ds->num_ports; p++) 438c38c5a66SVivien Didelot if (dsa_is_user_port(ds, p)) 439c38c5a66SVivien Didelot mask |= BIT(p); 440c38c5a66SVivien Didelot 441c38c5a66SVivien Didelot return mask; 442c8652c83SVivien Didelot } 443c8652c83SVivien Didelot 444c5f51765SVivien Didelot /* Return the local port used to reach an arbitrary switch device */ 445c5f51765SVivien Didelot static inline unsigned int dsa_routing_port(struct dsa_switch *ds, int device) 446c5f51765SVivien Didelot { 447c5f51765SVivien Didelot struct dsa_switch_tree *dst = ds->dst; 448c5f51765SVivien Didelot struct dsa_link *dl; 449c5f51765SVivien Didelot 450c5f51765SVivien Didelot list_for_each_entry(dl, &dst->rtable, list) 451c5f51765SVivien Didelot if (dl->dp->ds == ds && dl->link_dp->ds->index == device) 452c5f51765SVivien Didelot return dl->dp->index; 453c5f51765SVivien Didelot 454c5f51765SVivien Didelot return ds->num_ports; 455c5f51765SVivien Didelot } 456c5f51765SVivien Didelot 4573b8fac5dSVivien Didelot /* Return the local port used to reach an arbitrary switch port */ 4583b8fac5dSVivien Didelot static inline unsigned int dsa_towards_port(struct dsa_switch *ds, int device, 4593b8fac5dSVivien Didelot int port) 4603b8fac5dSVivien Didelot { 4613b8fac5dSVivien Didelot if (device == ds->index) 4623b8fac5dSVivien Didelot return port; 4633b8fac5dSVivien Didelot else 464c5f51765SVivien Didelot return dsa_routing_port(ds, device); 4653b8fac5dSVivien Didelot } 4663b8fac5dSVivien Didelot 4673b8fac5dSVivien Didelot /* Return the local port used to reach the dedicated CPU port */ 46807073c79SVivien Didelot static inline unsigned int dsa_upstream_port(struct dsa_switch *ds, int port) 469c8f0b869SBen Hutchings { 47007073c79SVivien Didelot const struct dsa_port *dp = dsa_to_port(ds, port); 47107073c79SVivien Didelot const struct dsa_port *cpu_dp = dp->cpu_dp; 47207073c79SVivien Didelot 47307073c79SVivien Didelot if (!cpu_dp) 47407073c79SVivien Didelot return port; 475c8f0b869SBen Hutchings 4763b8fac5dSVivien Didelot return dsa_towards_port(ds, cpu_dp->ds->index, cpu_dp->index); 477c8f0b869SBen Hutchings } 478c8f0b869SBen Hutchings 479cf2d45f5SVladimir Oltean static inline bool dsa_port_is_vlan_filtering(const struct dsa_port *dp) 480cf2d45f5SVladimir Oltean { 481cf2d45f5SVladimir Oltean const struct dsa_switch *ds = dp->ds; 482cf2d45f5SVladimir Oltean 483cf2d45f5SVladimir Oltean if (ds->vlan_filtering_is_global) 484cf2d45f5SVladimir Oltean return ds->vlan_filtering; 485cf2d45f5SVladimir Oltean else 486cf2d45f5SVladimir Oltean return dp->vlan_filtering; 487cf2d45f5SVladimir Oltean } 488cf2d45f5SVladimir Oltean 489cc76ce9eSTobias Waldekranz static inline 490cc76ce9eSTobias Waldekranz struct net_device *dsa_port_to_bridge_port(const struct dsa_port *dp) 491cc76ce9eSTobias Waldekranz { 492cc76ce9eSTobias Waldekranz if (!dp->bridge_dev) 493cc76ce9eSTobias Waldekranz return NULL; 494cc76ce9eSTobias Waldekranz 495cc76ce9eSTobias Waldekranz if (dp->lag_dev) 496cc76ce9eSTobias Waldekranz return dp->lag_dev; 497cc76ce9eSTobias Waldekranz else if (dp->hsr_dev) 498cc76ce9eSTobias Waldekranz return dp->hsr_dev; 499cc76ce9eSTobias Waldekranz 500cc76ce9eSTobias Waldekranz return dp->slave; 501cc76ce9eSTobias Waldekranz } 502cc76ce9eSTobias Waldekranz 5032bedde1aSArkadi Sharshevsky typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid, 5042bedde1aSArkadi Sharshevsky bool is_static, void *data); 5059d490b4eSVivien Didelot struct dsa_switch_ops { 50653da0ebaSVladimir Oltean /* 50753da0ebaSVladimir Oltean * Tagging protocol helpers called for the CPU ports and DSA links. 50853da0ebaSVladimir Oltean * @get_tag_protocol retrieves the initial tagging protocol and is 50953da0ebaSVladimir Oltean * mandatory. Switches which can operate using multiple tagging 51053da0ebaSVladimir Oltean * protocols should implement @change_tag_protocol and report in 51153da0ebaSVladimir Oltean * @get_tag_protocol the tagger in current use. 51253da0ebaSVladimir Oltean */ 5135ed4e3ebSFlorian Fainelli enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds, 5144d776482SFlorian Fainelli int port, 5154d776482SFlorian Fainelli enum dsa_tag_protocol mprot); 51653da0ebaSVladimir Oltean int (*change_tag_protocol)(struct dsa_switch *ds, int port, 51753da0ebaSVladimir Oltean enum dsa_tag_protocol proto); 5187b314362SAndrew Lunn 519c8f0b869SBen Hutchings int (*setup)(struct dsa_switch *ds); 5205e3f847aSVladimir Oltean void (*teardown)(struct dsa_switch *ds); 5216819563eSFlorian Fainelli u32 (*get_phy_flags)(struct dsa_switch *ds, int port); 522c8f0b869SBen Hutchings 523c8f0b869SBen Hutchings /* 524c8f0b869SBen Hutchings * Access to the switch's PHY registers. 525c8f0b869SBen Hutchings */ 526c8f0b869SBen Hutchings int (*phy_read)(struct dsa_switch *ds, int port, int regnum); 527c8f0b869SBen Hutchings int (*phy_write)(struct dsa_switch *ds, int port, 528c8f0b869SBen Hutchings int regnum, u16 val); 529c8f0b869SBen Hutchings 530c8f0b869SBen Hutchings /* 531ec9436baSFlorian Fainelli * Link state adjustment (called from libphy) 532ec9436baSFlorian Fainelli */ 533ec9436baSFlorian Fainelli void (*adjust_link)(struct dsa_switch *ds, int port, 534ec9436baSFlorian Fainelli struct phy_device *phydev); 535ce31b31cSFlorian Fainelli void (*fixed_link_update)(struct dsa_switch *ds, int port, 536ce31b31cSFlorian Fainelli struct fixed_phy_status *st); 537ec9436baSFlorian Fainelli 538ec9436baSFlorian Fainelli /* 53911d8f3ddSFlorian Fainelli * PHYLINK integration 54011d8f3ddSFlorian Fainelli */ 54111d8f3ddSFlorian Fainelli void (*phylink_validate)(struct dsa_switch *ds, int port, 54211d8f3ddSFlorian Fainelli unsigned long *supported, 54311d8f3ddSFlorian Fainelli struct phylink_link_state *state); 54411d8f3ddSFlorian Fainelli int (*phylink_mac_link_state)(struct dsa_switch *ds, int port, 54511d8f3ddSFlorian Fainelli struct phylink_link_state *state); 54611d8f3ddSFlorian Fainelli void (*phylink_mac_config)(struct dsa_switch *ds, int port, 54711d8f3ddSFlorian Fainelli unsigned int mode, 54811d8f3ddSFlorian Fainelli const struct phylink_link_state *state); 54911d8f3ddSFlorian Fainelli void (*phylink_mac_an_restart)(struct dsa_switch *ds, int port); 55011d8f3ddSFlorian Fainelli void (*phylink_mac_link_down)(struct dsa_switch *ds, int port, 55111d8f3ddSFlorian Fainelli unsigned int mode, 55211d8f3ddSFlorian Fainelli phy_interface_t interface); 55311d8f3ddSFlorian Fainelli void (*phylink_mac_link_up)(struct dsa_switch *ds, int port, 55411d8f3ddSFlorian Fainelli unsigned int mode, 55511d8f3ddSFlorian Fainelli phy_interface_t interface, 5565b502a7bSRussell King struct phy_device *phydev, 5575b502a7bSRussell King int speed, int duplex, 5585b502a7bSRussell King bool tx_pause, bool rx_pause); 55911d8f3ddSFlorian Fainelli void (*phylink_fixed_state)(struct dsa_switch *ds, int port, 56011d8f3ddSFlorian Fainelli struct phylink_link_state *state); 56111d8f3ddSFlorian Fainelli /* 562c2ec5f2eSOleksij Rempel * Port statistics counters. 563c8f0b869SBen Hutchings */ 56489f09048SFlorian Fainelli void (*get_strings)(struct dsa_switch *ds, int port, 56589f09048SFlorian Fainelli u32 stringset, uint8_t *data); 566c8f0b869SBen Hutchings void (*get_ethtool_stats)(struct dsa_switch *ds, 567c8f0b869SBen Hutchings int port, uint64_t *data); 56889f09048SFlorian Fainelli int (*get_sset_count)(struct dsa_switch *ds, int port, int sset); 569cf963573SFlorian Fainelli void (*get_ethtool_phy_stats)(struct dsa_switch *ds, 570cf963573SFlorian Fainelli int port, uint64_t *data); 571c2ec5f2eSOleksij Rempel void (*get_stats64)(struct dsa_switch *ds, int port, 572c2ec5f2eSOleksij Rempel struct rtnl_link_stats64 *s); 573a71acad9SOleksij Rempel void (*self_test)(struct dsa_switch *ds, int port, 574a71acad9SOleksij Rempel struct ethtool_test *etest, u64 *data); 57524462549SFlorian Fainelli 57624462549SFlorian Fainelli /* 57719e57c4eSFlorian Fainelli * ethtool Wake-on-LAN 57819e57c4eSFlorian Fainelli */ 57919e57c4eSFlorian Fainelli void (*get_wol)(struct dsa_switch *ds, int port, 58019e57c4eSFlorian Fainelli struct ethtool_wolinfo *w); 58119e57c4eSFlorian Fainelli int (*set_wol)(struct dsa_switch *ds, int port, 58219e57c4eSFlorian Fainelli struct ethtool_wolinfo *w); 58319e57c4eSFlorian Fainelli 58419e57c4eSFlorian Fainelli /* 5850336369dSBrandon Streiff * ethtool timestamp info 5860336369dSBrandon Streiff */ 5870336369dSBrandon Streiff int (*get_ts_info)(struct dsa_switch *ds, int port, 5880336369dSBrandon Streiff struct ethtool_ts_info *ts); 5890336369dSBrandon Streiff 5900336369dSBrandon Streiff /* 59124462549SFlorian Fainelli * Suspend and resume 59224462549SFlorian Fainelli */ 59324462549SFlorian Fainelli int (*suspend)(struct dsa_switch *ds); 59424462549SFlorian Fainelli int (*resume)(struct dsa_switch *ds); 595b2f2af21SFlorian Fainelli 596b2f2af21SFlorian Fainelli /* 597b2f2af21SFlorian Fainelli * Port enable/disable 598b2f2af21SFlorian Fainelli */ 599b2f2af21SFlorian Fainelli int (*port_enable)(struct dsa_switch *ds, int port, 600b2f2af21SFlorian Fainelli struct phy_device *phy); 60175104db0SAndrew Lunn void (*port_disable)(struct dsa_switch *ds, int port); 6027905288fSFlorian Fainelli 6037905288fSFlorian Fainelli /* 60408f50061SVivien Didelot * Port's MAC EEE settings 6057905288fSFlorian Fainelli */ 60608f50061SVivien Didelot int (*set_mac_eee)(struct dsa_switch *ds, int port, 6077905288fSFlorian Fainelli struct ethtool_eee *e); 60808f50061SVivien Didelot int (*get_mac_eee)(struct dsa_switch *ds, int port, 6097905288fSFlorian Fainelli struct ethtool_eee *e); 61051579c3fSGuenter Roeck 6116793abb4SGuenter Roeck /* EEPROM access */ 6126793abb4SGuenter Roeck int (*get_eeprom_len)(struct dsa_switch *ds); 6136793abb4SGuenter Roeck int (*get_eeprom)(struct dsa_switch *ds, 6146793abb4SGuenter Roeck struct ethtool_eeprom *eeprom, u8 *data); 6156793abb4SGuenter Roeck int (*set_eeprom)(struct dsa_switch *ds, 6166793abb4SGuenter Roeck struct ethtool_eeprom *eeprom, u8 *data); 6173d762a0fSGuenter Roeck 6183d762a0fSGuenter Roeck /* 6193d762a0fSGuenter Roeck * Register access. 6203d762a0fSGuenter Roeck */ 6213d762a0fSGuenter Roeck int (*get_regs_len)(struct dsa_switch *ds, int port); 6223d762a0fSGuenter Roeck void (*get_regs)(struct dsa_switch *ds, int port, 6233d762a0fSGuenter Roeck struct ethtool_regs *regs, void *p); 624b73adef6SFlorian Fainelli 625b73adef6SFlorian Fainelli /* 626e358bef7SVladimir Oltean * Upper device tracking. 627e358bef7SVladimir Oltean */ 628e358bef7SVladimir Oltean int (*port_prechangeupper)(struct dsa_switch *ds, int port, 629e358bef7SVladimir Oltean struct netdev_notifier_changeupper_info *info); 630e358bef7SVladimir Oltean 631e358bef7SVladimir Oltean /* 632b73adef6SFlorian Fainelli * Bridge integration 633b73adef6SFlorian Fainelli */ 63434a79f63SVivien Didelot int (*set_ageing_time)(struct dsa_switch *ds, unsigned int msecs); 63571327a4eSVivien Didelot int (*port_bridge_join)(struct dsa_switch *ds, int port, 636a6692754SVivien Didelot struct net_device *bridge); 637f123f2fbSVivien Didelot void (*port_bridge_leave)(struct dsa_switch *ds, int port, 638f123f2fbSVivien Didelot struct net_device *bridge); 63943c44a9fSVivien Didelot void (*port_stp_state_set)(struct dsa_switch *ds, int port, 640b73adef6SFlorian Fainelli u8 state); 641732f794cSVivien Didelot void (*port_fast_age)(struct dsa_switch *ds, int port); 642a8b659e7SVladimir Oltean int (*port_pre_bridge_flags)(struct dsa_switch *ds, int port, 643a8b659e7SVladimir Oltean struct switchdev_brport_flags flags, 644a8b659e7SVladimir Oltean struct netlink_ext_ack *extack); 645a8b659e7SVladimir Oltean int (*port_bridge_flags)(struct dsa_switch *ds, int port, 646a8b659e7SVladimir Oltean struct switchdev_brport_flags flags, 647a8b659e7SVladimir Oltean struct netlink_ext_ack *extack); 648a8b659e7SVladimir Oltean int (*port_set_mrouter)(struct dsa_switch *ds, int port, bool mrouter, 649a8b659e7SVladimir Oltean struct netlink_ext_ack *extack); 6502a778e1bSVivien Didelot 6512a778e1bSVivien Didelot /* 65211149536SVivien Didelot * VLAN support 65311149536SVivien Didelot */ 654fb2dabadSVivien Didelot int (*port_vlan_filtering)(struct dsa_switch *ds, int port, 65589153ed6SVladimir Oltean bool vlan_filtering, 65689153ed6SVladimir Oltean struct netlink_ext_ack *extack); 6571958d581SVladimir Oltean int (*port_vlan_add)(struct dsa_switch *ds, int port, 65831046a5fSVladimir Oltean const struct switchdev_obj_port_vlan *vlan, 65931046a5fSVladimir Oltean struct netlink_ext_ack *extack); 66076e398a6SVivien Didelot int (*port_vlan_del)(struct dsa_switch *ds, int port, 66176e398a6SVivien Didelot const struct switchdev_obj_port_vlan *vlan); 66211149536SVivien Didelot /* 6632a778e1bSVivien Didelot * Forwarding database 6642a778e1bSVivien Didelot */ 6651b6dd556SArkadi Sharshevsky int (*port_fdb_add)(struct dsa_switch *ds, int port, 6666c2c1dcbSArkadi Sharshevsky const unsigned char *addr, u16 vid); 6672a778e1bSVivien Didelot int (*port_fdb_del)(struct dsa_switch *ds, int port, 6686c2c1dcbSArkadi Sharshevsky const unsigned char *addr, u16 vid); 669ea70ba98SVivien Didelot int (*port_fdb_dump)(struct dsa_switch *ds, int port, 6702bedde1aSArkadi Sharshevsky dsa_fdb_dump_cb_t *cb, void *data); 6718df30255SVivien Didelot 6728df30255SVivien Didelot /* 6738df30255SVivien Didelot * Multicast database 6748df30255SVivien Didelot */ 675a52b2da7SVladimir Oltean int (*port_mdb_add)(struct dsa_switch *ds, int port, 6763709aadcSVivien Didelot const struct switchdev_obj_port_mdb *mdb); 6778df30255SVivien Didelot int (*port_mdb_del)(struct dsa_switch *ds, int port, 6788df30255SVivien Didelot const struct switchdev_obj_port_mdb *mdb); 679bf9f2648SFlorian Fainelli /* 680bf9f2648SFlorian Fainelli * RXNFC 681bf9f2648SFlorian Fainelli */ 682bf9f2648SFlorian Fainelli int (*get_rxnfc)(struct dsa_switch *ds, int port, 683bf9f2648SFlorian Fainelli struct ethtool_rxnfc *nfc, u32 *rule_locs); 684bf9f2648SFlorian Fainelli int (*set_rxnfc)(struct dsa_switch *ds, int port, 685bf9f2648SFlorian Fainelli struct ethtool_rxnfc *nfc); 686f50f2127SFlorian Fainelli 687f50f2127SFlorian Fainelli /* 688f50f2127SFlorian Fainelli * TC integration 689f50f2127SFlorian Fainelli */ 690ed11bb1fSVladimir Oltean int (*cls_flower_add)(struct dsa_switch *ds, int port, 691ed11bb1fSVladimir Oltean struct flow_cls_offload *cls, bool ingress); 692ed11bb1fSVladimir Oltean int (*cls_flower_del)(struct dsa_switch *ds, int port, 693ed11bb1fSVladimir Oltean struct flow_cls_offload *cls, bool ingress); 694ed11bb1fSVladimir Oltean int (*cls_flower_stats)(struct dsa_switch *ds, int port, 695ed11bb1fSVladimir Oltean struct flow_cls_offload *cls, bool ingress); 696f50f2127SFlorian Fainelli int (*port_mirror_add)(struct dsa_switch *ds, int port, 697f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry *mirror, 698f50f2127SFlorian Fainelli bool ingress); 699f50f2127SFlorian Fainelli void (*port_mirror_del)(struct dsa_switch *ds, int port, 700f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry *mirror); 70134297176SVladimir Oltean int (*port_policer_add)(struct dsa_switch *ds, int port, 70234297176SVladimir Oltean struct dsa_mall_policer_tc_entry *policer); 70334297176SVladimir Oltean void (*port_policer_del)(struct dsa_switch *ds, int port); 70447d23af2SVladimir Oltean int (*port_setup_tc)(struct dsa_switch *ds, int port, 70547d23af2SVladimir Oltean enum tc_setup_type type, void *type_data); 70640ef2c93SVivien Didelot 70740ef2c93SVivien Didelot /* 70840ef2c93SVivien Didelot * Cross-chip operations 70940ef2c93SVivien Didelot */ 710f66a6a69SVladimir Oltean int (*crosschip_bridge_join)(struct dsa_switch *ds, int tree_index, 711f66a6a69SVladimir Oltean int sw_index, int port, 712f66a6a69SVladimir Oltean struct net_device *br); 713f66a6a69SVladimir Oltean void (*crosschip_bridge_leave)(struct dsa_switch *ds, int tree_index, 714f66a6a69SVladimir Oltean int sw_index, int port, 715f66a6a69SVladimir Oltean struct net_device *br); 716058102a6STobias Waldekranz int (*crosschip_lag_change)(struct dsa_switch *ds, int sw_index, 717058102a6STobias Waldekranz int port); 718058102a6STobias Waldekranz int (*crosschip_lag_join)(struct dsa_switch *ds, int sw_index, 719058102a6STobias Waldekranz int port, struct net_device *lag, 720058102a6STobias Waldekranz struct netdev_lag_upper_info *info); 721058102a6STobias Waldekranz int (*crosschip_lag_leave)(struct dsa_switch *ds, int sw_index, 722058102a6STobias Waldekranz int port, struct net_device *lag); 7230336369dSBrandon Streiff 7240336369dSBrandon Streiff /* 7250336369dSBrandon Streiff * PTP functionality 7260336369dSBrandon Streiff */ 7270336369dSBrandon Streiff int (*port_hwtstamp_get)(struct dsa_switch *ds, int port, 7280336369dSBrandon Streiff struct ifreq *ifr); 7290336369dSBrandon Streiff int (*port_hwtstamp_set)(struct dsa_switch *ds, int port, 7300336369dSBrandon Streiff struct ifreq *ifr); 7315c5416f5SYangbo Lu void (*port_txtstamp)(struct dsa_switch *ds, int port, 7325c5416f5SYangbo Lu struct sk_buff *skb); 73390af1059SBrandon Streiff bool (*port_rxtstamp)(struct dsa_switch *ds, int port, 73490af1059SBrandon Streiff struct sk_buff *skb, unsigned int type); 73597a69a0dSVladimir Oltean 7360f06b855SAndrew Lunn /* Devlink parameters, etc */ 7376b297524SAndrew Lunn int (*devlink_param_get)(struct dsa_switch *ds, u32 id, 7386b297524SAndrew Lunn struct devlink_param_gset_ctx *ctx); 7396b297524SAndrew Lunn int (*devlink_param_set)(struct dsa_switch *ds, u32 id, 7406b297524SAndrew Lunn struct devlink_param_gset_ctx *ctx); 7410f06b855SAndrew Lunn int (*devlink_info_get)(struct dsa_switch *ds, 7420f06b855SAndrew Lunn struct devlink_info_req *req, 7430f06b855SAndrew Lunn struct netlink_ext_ack *extack); 7442a6ef763SVladimir Oltean int (*devlink_sb_pool_get)(struct dsa_switch *ds, 7452a6ef763SVladimir Oltean unsigned int sb_index, u16 pool_index, 7462a6ef763SVladimir Oltean struct devlink_sb_pool_info *pool_info); 7472a6ef763SVladimir Oltean int (*devlink_sb_pool_set)(struct dsa_switch *ds, unsigned int sb_index, 7482a6ef763SVladimir Oltean u16 pool_index, u32 size, 7492a6ef763SVladimir Oltean enum devlink_sb_threshold_type threshold_type, 7502a6ef763SVladimir Oltean struct netlink_ext_ack *extack); 7512a6ef763SVladimir Oltean int (*devlink_sb_port_pool_get)(struct dsa_switch *ds, int port, 7522a6ef763SVladimir Oltean unsigned int sb_index, u16 pool_index, 7532a6ef763SVladimir Oltean u32 *p_threshold); 7542a6ef763SVladimir Oltean int (*devlink_sb_port_pool_set)(struct dsa_switch *ds, int port, 7552a6ef763SVladimir Oltean unsigned int sb_index, u16 pool_index, 7562a6ef763SVladimir Oltean u32 threshold, 7572a6ef763SVladimir Oltean struct netlink_ext_ack *extack); 7582a6ef763SVladimir Oltean int (*devlink_sb_tc_pool_bind_get)(struct dsa_switch *ds, int port, 7592a6ef763SVladimir Oltean unsigned int sb_index, u16 tc_index, 7602a6ef763SVladimir Oltean enum devlink_sb_pool_type pool_type, 7612a6ef763SVladimir Oltean u16 *p_pool_index, u32 *p_threshold); 7622a6ef763SVladimir Oltean int (*devlink_sb_tc_pool_bind_set)(struct dsa_switch *ds, int port, 7632a6ef763SVladimir Oltean unsigned int sb_index, u16 tc_index, 7642a6ef763SVladimir Oltean enum devlink_sb_pool_type pool_type, 7652a6ef763SVladimir Oltean u16 pool_index, u32 threshold, 7662a6ef763SVladimir Oltean struct netlink_ext_ack *extack); 7672a6ef763SVladimir Oltean int (*devlink_sb_occ_snapshot)(struct dsa_switch *ds, 7682a6ef763SVladimir Oltean unsigned int sb_index); 7692a6ef763SVladimir Oltean int (*devlink_sb_occ_max_clear)(struct dsa_switch *ds, 7702a6ef763SVladimir Oltean unsigned int sb_index); 7712a6ef763SVladimir Oltean int (*devlink_sb_occ_port_pool_get)(struct dsa_switch *ds, int port, 7722a6ef763SVladimir Oltean unsigned int sb_index, u16 pool_index, 7732a6ef763SVladimir Oltean u32 *p_cur, u32 *p_max); 7742a6ef763SVladimir Oltean int (*devlink_sb_occ_tc_port_bind_get)(struct dsa_switch *ds, int port, 7752a6ef763SVladimir Oltean unsigned int sb_index, u16 tc_index, 7762a6ef763SVladimir Oltean enum devlink_sb_pool_type pool_type, 7772a6ef763SVladimir Oltean u32 *p_cur, u32 *p_max); 778bfcb8132SVladimir Oltean 779bfcb8132SVladimir Oltean /* 780bfcb8132SVladimir Oltean * MTU change functionality. Switches can also adjust their MRU through 781bfcb8132SVladimir Oltean * this method. By MTU, one understands the SDU (L2 payload) length. 782bfcb8132SVladimir Oltean * If the switch needs to account for the DSA tag on the CPU port, this 783ab88d64aSRandy Dunlap * method needs to do so privately. 784bfcb8132SVladimir Oltean */ 785bfcb8132SVladimir Oltean int (*port_change_mtu)(struct dsa_switch *ds, int port, 786bfcb8132SVladimir Oltean int new_mtu); 787bfcb8132SVladimir Oltean int (*port_max_mtu)(struct dsa_switch *ds, int port); 788058102a6STobias Waldekranz 789058102a6STobias Waldekranz /* 790058102a6STobias Waldekranz * LAG integration 791058102a6STobias Waldekranz */ 792058102a6STobias Waldekranz int (*port_lag_change)(struct dsa_switch *ds, int port); 793058102a6STobias Waldekranz int (*port_lag_join)(struct dsa_switch *ds, int port, 794058102a6STobias Waldekranz struct net_device *lag, 795058102a6STobias Waldekranz struct netdev_lag_upper_info *info); 796058102a6STobias Waldekranz int (*port_lag_leave)(struct dsa_switch *ds, int port, 797058102a6STobias Waldekranz struct net_device *lag); 79818596f50SGeorge McCollister 79918596f50SGeorge McCollister /* 80018596f50SGeorge McCollister * HSR integration 80118596f50SGeorge McCollister */ 80218596f50SGeorge McCollister int (*port_hsr_join)(struct dsa_switch *ds, int port, 80318596f50SGeorge McCollister struct net_device *hsr); 80418596f50SGeorge McCollister int (*port_hsr_leave)(struct dsa_switch *ds, int port, 80518596f50SGeorge McCollister struct net_device *hsr); 806c595c433SHoratiu Vultur 807c595c433SHoratiu Vultur /* 808c595c433SHoratiu Vultur * MRP integration 809c595c433SHoratiu Vultur */ 810c595c433SHoratiu Vultur int (*port_mrp_add)(struct dsa_switch *ds, int port, 811c595c433SHoratiu Vultur const struct switchdev_obj_mrp *mrp); 812c595c433SHoratiu Vultur int (*port_mrp_del)(struct dsa_switch *ds, int port, 813c595c433SHoratiu Vultur const struct switchdev_obj_mrp *mrp); 814c595c433SHoratiu Vultur int (*port_mrp_add_ring_role)(struct dsa_switch *ds, int port, 815c595c433SHoratiu Vultur const struct switchdev_obj_ring_role_mrp *mrp); 816c595c433SHoratiu Vultur int (*port_mrp_del_ring_role)(struct dsa_switch *ds, int port, 817c595c433SHoratiu Vultur const struct switchdev_obj_ring_role_mrp *mrp); 8186b297524SAndrew Lunn }; 8196b297524SAndrew Lunn 8206b297524SAndrew Lunn #define DSA_DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes) \ 8216b297524SAndrew Lunn DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, \ 8226b297524SAndrew Lunn dsa_devlink_param_get, dsa_devlink_param_set, NULL) 8236b297524SAndrew Lunn 8246b297524SAndrew Lunn int dsa_devlink_param_get(struct devlink *dl, u32 id, 8256b297524SAndrew Lunn struct devlink_param_gset_ctx *ctx); 8266b297524SAndrew Lunn int dsa_devlink_param_set(struct devlink *dl, u32 id, 8276b297524SAndrew Lunn struct devlink_param_gset_ctx *ctx); 8286b297524SAndrew Lunn int dsa_devlink_params_register(struct dsa_switch *ds, 8296b297524SAndrew Lunn const struct devlink_param *params, 8306b297524SAndrew Lunn size_t params_count); 8316b297524SAndrew Lunn void dsa_devlink_params_unregister(struct dsa_switch *ds, 8326b297524SAndrew Lunn const struct devlink_param *params, 8336b297524SAndrew Lunn size_t params_count); 8345cd73fbdSAndrew Lunn int dsa_devlink_resource_register(struct dsa_switch *ds, 8355cd73fbdSAndrew Lunn const char *resource_name, 8365cd73fbdSAndrew Lunn u64 resource_size, 8375cd73fbdSAndrew Lunn u64 resource_id, 8385cd73fbdSAndrew Lunn u64 parent_resource_id, 8395cd73fbdSAndrew Lunn const struct devlink_resource_size_params *size_params); 8405cd73fbdSAndrew Lunn 8415cd73fbdSAndrew Lunn void dsa_devlink_resources_unregister(struct dsa_switch *ds); 8425cd73fbdSAndrew Lunn 8435cd73fbdSAndrew Lunn void dsa_devlink_resource_occ_get_register(struct dsa_switch *ds, 8445cd73fbdSAndrew Lunn u64 resource_id, 8455cd73fbdSAndrew Lunn devlink_resource_occ_get_t *occ_get, 8465cd73fbdSAndrew Lunn void *occ_get_priv); 8475cd73fbdSAndrew Lunn void dsa_devlink_resource_occ_get_unregister(struct dsa_switch *ds, 8485cd73fbdSAndrew Lunn u64 resource_id); 84997c82c23SAndrew Lunn struct devlink_region * 85097c82c23SAndrew Lunn dsa_devlink_region_create(struct dsa_switch *ds, 85197c82c23SAndrew Lunn const struct devlink_region_ops *ops, 85297c82c23SAndrew Lunn u32 region_max_snapshots, u64 region_size); 85308156ba4SAndrew Lunn struct devlink_region * 85408156ba4SAndrew Lunn dsa_devlink_port_region_create(struct dsa_switch *ds, 85508156ba4SAndrew Lunn int port, 85608156ba4SAndrew Lunn const struct devlink_port_region_ops *ops, 85708156ba4SAndrew Lunn u32 region_max_snapshots, u64 region_size); 85897c82c23SAndrew Lunn void dsa_devlink_region_destroy(struct devlink_region *region); 85997c82c23SAndrew Lunn 860e1eea811SVladimir Oltean struct dsa_port *dsa_port_from_netdev(struct net_device *netdev); 8615cd73fbdSAndrew Lunn 8626b297524SAndrew Lunn struct dsa_devlink_priv { 8636b297524SAndrew Lunn struct dsa_switch *ds; 864c8f0b869SBen Hutchings }; 865c8f0b869SBen Hutchings 866ccc3e6b0SAndrew Lunn static inline struct dsa_switch *dsa_devlink_to_ds(struct devlink *dl) 867ccc3e6b0SAndrew Lunn { 868ccc3e6b0SAndrew Lunn struct dsa_devlink_priv *dl_priv = devlink_priv(dl); 869ccc3e6b0SAndrew Lunn 870ccc3e6b0SAndrew Lunn return dl_priv->ds; 871ccc3e6b0SAndrew Lunn } 872ccc3e6b0SAndrew Lunn 8737d1e2a10SAndrew Lunn static inline 8747d1e2a10SAndrew Lunn struct dsa_switch *dsa_devlink_port_to_ds(struct devlink_port *port) 8757d1e2a10SAndrew Lunn { 8767d1e2a10SAndrew Lunn struct devlink *dl = port->devlink; 8777d1e2a10SAndrew Lunn struct dsa_devlink_priv *dl_priv = devlink_priv(dl); 8787d1e2a10SAndrew Lunn 8797d1e2a10SAndrew Lunn return dl_priv->ds; 8807d1e2a10SAndrew Lunn } 8817d1e2a10SAndrew Lunn 8827d1e2a10SAndrew Lunn static inline int dsa_devlink_port_to_port(struct devlink_port *port) 8837d1e2a10SAndrew Lunn { 8847d1e2a10SAndrew Lunn return port->index; 8857d1e2a10SAndrew Lunn } 8867d1e2a10SAndrew Lunn 887ab3d408dSFlorian Fainelli struct dsa_switch_driver { 888ab3d408dSFlorian Fainelli struct list_head list; 889a82f67afSFlorian Fainelli const struct dsa_switch_ops *ops; 890ab3d408dSFlorian Fainelli }; 891ab3d408dSFlorian Fainelli 89214b89f36SFlorian Fainelli struct net_device *dsa_dev_to_net_device(struct device *dev); 893c8f0b869SBen Hutchings 89473a7ece8SVivien Didelot /* Keep inline for faster access in hot path */ 8959eb8eff0SVladimir Oltean static inline bool netdev_uses_dsa(const struct net_device *dev) 896c6e970a0SAndrew Lunn { 897c6e970a0SAndrew Lunn #if IS_ENABLED(CONFIG_NET_DSA) 898717ffbfbSVivien Didelot return dev->dsa_ptr && dev->dsa_ptr->rcv; 899c6e970a0SAndrew Lunn #endif 900c6e970a0SAndrew Lunn return false; 901c6e970a0SAndrew Lunn } 902c6e970a0SAndrew Lunn 903cc1939e4SVladimir Oltean static inline bool dsa_can_decode(const struct sk_buff *skb, 904cc1939e4SVladimir Oltean struct net_device *dev) 905cc1939e4SVladimir Oltean { 906cc1939e4SVladimir Oltean #if IS_ENABLED(CONFIG_NET_DSA) 907cc1939e4SVladimir Oltean return !dev->dsa_ptr->filter || dev->dsa_ptr->filter(skb, dev); 908cc1939e4SVladimir Oltean #endif 909cc1939e4SVladimir Oltean return false; 910cc1939e4SVladimir Oltean } 911cc1939e4SVladimir Oltean 9129790cf20SVladimir Oltean /* All DSA tags that push the EtherType to the right (basically all except tail 9139790cf20SVladimir Oltean * tags, which don't break dissection) can be treated the same from the 9149790cf20SVladimir Oltean * perspective of the flow dissector. 9159790cf20SVladimir Oltean * 9169790cf20SVladimir Oltean * We need to return: 9179790cf20SVladimir Oltean * - offset: the (B - A) difference between: 9189790cf20SVladimir Oltean * A. the position of the real EtherType and 9199790cf20SVladimir Oltean * B. the current skb->data (aka ETH_HLEN bytes into the frame, aka 2 bytes 9209790cf20SVladimir Oltean * after the normal EtherType was supposed to be) 9219790cf20SVladimir Oltean * The offset in bytes is exactly equal to the tagger overhead (and half of 9229790cf20SVladimir Oltean * that, in __be16 shorts). 9239790cf20SVladimir Oltean * 9249790cf20SVladimir Oltean * - proto: the value of the real EtherType. 9259790cf20SVladimir Oltean */ 9269790cf20SVladimir Oltean static inline void dsa_tag_generic_flow_dissect(const struct sk_buff *skb, 9279790cf20SVladimir Oltean __be16 *proto, int *offset) 9289790cf20SVladimir Oltean { 9299790cf20SVladimir Oltean #if IS_ENABLED(CONFIG_NET_DSA) 9309790cf20SVladimir Oltean const struct dsa_device_ops *ops = skb->dev->dsa_ptr->tag_ops; 9314e500251SVladimir Oltean int tag_len = ops->needed_headroom; 9329790cf20SVladimir Oltean 9339790cf20SVladimir Oltean *offset = tag_len; 9349790cf20SVladimir Oltean *proto = ((__be16 *)skb->data)[(tag_len / 2) - 1]; 9359790cf20SVladimir Oltean #endif 9369790cf20SVladimir Oltean } 9379790cf20SVladimir Oltean 9384cfab356SFlorian Fainelli #if IS_ENABLED(CONFIG_NET_DSA) 9394cfab356SFlorian Fainelli static inline int __dsa_netdevice_ops_check(struct net_device *dev) 9404cfab356SFlorian Fainelli { 9414cfab356SFlorian Fainelli int err = -EOPNOTSUPP; 9424cfab356SFlorian Fainelli 9434cfab356SFlorian Fainelli if (!dev->dsa_ptr) 9444cfab356SFlorian Fainelli return err; 9454cfab356SFlorian Fainelli 9464cfab356SFlorian Fainelli if (!dev->dsa_ptr->netdev_ops) 9474cfab356SFlorian Fainelli return err; 9484cfab356SFlorian Fainelli 9494cfab356SFlorian Fainelli return 0; 9504cfab356SFlorian Fainelli } 9514cfab356SFlorian Fainelli 9524cfab356SFlorian Fainelli static inline int dsa_ndo_do_ioctl(struct net_device *dev, struct ifreq *ifr, 9534cfab356SFlorian Fainelli int cmd) 9544cfab356SFlorian Fainelli { 9554cfab356SFlorian Fainelli const struct dsa_netdevice_ops *ops; 9564cfab356SFlorian Fainelli int err; 9574cfab356SFlorian Fainelli 9584cfab356SFlorian Fainelli err = __dsa_netdevice_ops_check(dev); 9594cfab356SFlorian Fainelli if (err) 9604cfab356SFlorian Fainelli return err; 9614cfab356SFlorian Fainelli 9624cfab356SFlorian Fainelli ops = dev->dsa_ptr->netdev_ops; 9634cfab356SFlorian Fainelli 9644cfab356SFlorian Fainelli return ops->ndo_do_ioctl(dev, ifr, cmd); 9654cfab356SFlorian Fainelli } 9664cfab356SFlorian Fainelli #else 9674cfab356SFlorian Fainelli static inline int dsa_ndo_do_ioctl(struct net_device *dev, struct ifreq *ifr, 9684cfab356SFlorian Fainelli int cmd) 9694cfab356SFlorian Fainelli { 9704cfab356SFlorian Fainelli return -EOPNOTSUPP; 9714cfab356SFlorian Fainelli } 9724cfab356SFlorian Fainelli #endif 9734cfab356SFlorian Fainelli 97483c0afaeSAndrew Lunn void dsa_unregister_switch(struct dsa_switch *ds); 97523c9ee49SVivien Didelot int dsa_register_switch(struct dsa_switch *ds); 9763b7bc1f0SVladimir Oltean struct dsa_switch *dsa_switch_find(int tree_index, int sw_index); 977ea825e70SFlorian Fainelli #ifdef CONFIG_PM_SLEEP 978ea825e70SFlorian Fainelli int dsa_switch_suspend(struct dsa_switch *ds); 979ea825e70SFlorian Fainelli int dsa_switch_resume(struct dsa_switch *ds); 980ea825e70SFlorian Fainelli #else 981ea825e70SFlorian Fainelli static inline int dsa_switch_suspend(struct dsa_switch *ds) 982ea825e70SFlorian Fainelli { 983ea825e70SFlorian Fainelli return 0; 984ea825e70SFlorian Fainelli } 985ea825e70SFlorian Fainelli static inline int dsa_switch_resume(struct dsa_switch *ds) 986ea825e70SFlorian Fainelli { 987ea825e70SFlorian Fainelli return 0; 988ea825e70SFlorian Fainelli } 989ea825e70SFlorian Fainelli #endif /* CONFIG_PM_SLEEP */ 990ea825e70SFlorian Fainelli 99160724d4bSFlorian Fainelli #if IS_ENABLED(CONFIG_NET_DSA) 992a5e3c9baSVladimir Oltean bool dsa_slave_dev_check(const struct net_device *dev); 99360724d4bSFlorian Fainelli #else 994a5e3c9baSVladimir Oltean static inline bool dsa_slave_dev_check(const struct net_device *dev) 995a5e3c9baSVladimir Oltean { 996a5e3c9baSVladimir Oltean return false; 997a5e3c9baSVladimir Oltean } 99860724d4bSFlorian Fainelli #endif 99960724d4bSFlorian Fainelli 100097a69a0dSVladimir Oltean netdev_tx_t dsa_enqueue_skb(struct sk_buff *skb, struct net_device *dev); 1001cf963573SFlorian Fainelli int dsa_port_get_phy_strings(struct dsa_port *dp, uint8_t *data); 1002cf963573SFlorian Fainelli int dsa_port_get_ethtool_phy_stats(struct dsa_port *dp, uint64_t *data); 1003cf963573SFlorian Fainelli int dsa_port_get_phy_sset_count(struct dsa_port *dp); 100411d8f3ddSFlorian Fainelli void dsa_port_phylink_mac_change(struct dsa_switch *ds, int port, bool up); 1005cf963573SFlorian Fainelli 1006d3b8c049SAndrew Lunn struct dsa_tag_driver { 1007d3b8c049SAndrew Lunn const struct dsa_device_ops *ops; 1008d3b8c049SAndrew Lunn struct list_head list; 1009d3b8c049SAndrew Lunn struct module *owner; 1010d3b8c049SAndrew Lunn }; 1011d3b8c049SAndrew Lunn 1012d3b8c049SAndrew Lunn void dsa_tag_drivers_register(struct dsa_tag_driver *dsa_tag_driver_array[], 1013d3b8c049SAndrew Lunn unsigned int count, 1014d3b8c049SAndrew Lunn struct module *owner); 1015d3b8c049SAndrew Lunn void dsa_tag_drivers_unregister(struct dsa_tag_driver *dsa_tag_driver_array[], 1016d3b8c049SAndrew Lunn unsigned int count); 1017d3b8c049SAndrew Lunn 1018d3b8c049SAndrew Lunn #define dsa_tag_driver_module_drivers(__dsa_tag_drivers_array, __count) \ 1019d3b8c049SAndrew Lunn static int __init dsa_tag_driver_module_init(void) \ 1020d3b8c049SAndrew Lunn { \ 1021d3b8c049SAndrew Lunn dsa_tag_drivers_register(__dsa_tag_drivers_array, __count, \ 1022d3b8c049SAndrew Lunn THIS_MODULE); \ 1023d3b8c049SAndrew Lunn return 0; \ 1024d3b8c049SAndrew Lunn } \ 1025d3b8c049SAndrew Lunn module_init(dsa_tag_driver_module_init); \ 1026d3b8c049SAndrew Lunn \ 1027d3b8c049SAndrew Lunn static void __exit dsa_tag_driver_module_exit(void) \ 1028d3b8c049SAndrew Lunn { \ 1029d3b8c049SAndrew Lunn dsa_tag_drivers_unregister(__dsa_tag_drivers_array, __count); \ 1030d3b8c049SAndrew Lunn } \ 1031d3b8c049SAndrew Lunn module_exit(dsa_tag_driver_module_exit) 1032d3b8c049SAndrew Lunn 1033d3b8c049SAndrew Lunn /** 1034d3b8c049SAndrew Lunn * module_dsa_tag_drivers() - Helper macro for registering DSA tag 1035d3b8c049SAndrew Lunn * drivers 1036d3b8c049SAndrew Lunn * @__ops_array: Array of tag driver strucutres 1037d3b8c049SAndrew Lunn * 1038d3b8c049SAndrew Lunn * Helper macro for DSA tag drivers which do not do anything special 1039d3b8c049SAndrew Lunn * in module init/exit. Each module may only use this macro once, and 1040d3b8c049SAndrew Lunn * calling it replaces module_init() and module_exit(). 1041d3b8c049SAndrew Lunn */ 1042d3b8c049SAndrew Lunn #define module_dsa_tag_drivers(__ops_array) \ 1043d3b8c049SAndrew Lunn dsa_tag_driver_module_drivers(__ops_array, ARRAY_SIZE(__ops_array)) 1044d3b8c049SAndrew Lunn 1045d3b8c049SAndrew Lunn #define DSA_TAG_DRIVER_NAME(__ops) dsa_tag_driver ## _ ## __ops 1046d3b8c049SAndrew Lunn 1047d3b8c049SAndrew Lunn /* Create a static structure we can build a linked list of dsa_tag 1048d3b8c049SAndrew Lunn * drivers 1049d3b8c049SAndrew Lunn */ 1050d3b8c049SAndrew Lunn #define DSA_TAG_DRIVER(__ops) \ 1051d3b8c049SAndrew Lunn static struct dsa_tag_driver DSA_TAG_DRIVER_NAME(__ops) = { \ 1052d3b8c049SAndrew Lunn .ops = &__ops, \ 1053d3b8c049SAndrew Lunn } 1054d3b8c049SAndrew Lunn 1055d3b8c049SAndrew Lunn /** 1056d3b8c049SAndrew Lunn * module_dsa_tag_driver() - Helper macro for registering a single DSA tag 1057d3b8c049SAndrew Lunn * driver 1058d3b8c049SAndrew Lunn * @__ops: Single tag driver structures 1059d3b8c049SAndrew Lunn * 1060d3b8c049SAndrew Lunn * Helper macro for DSA tag drivers which do not do anything special 1061d3b8c049SAndrew Lunn * in module init/exit. Each module may only use this macro once, and 1062d3b8c049SAndrew Lunn * calling it replaces module_init() and module_exit(). 1063d3b8c049SAndrew Lunn */ 1064d3b8c049SAndrew Lunn #define module_dsa_tag_driver(__ops) \ 1065d3b8c049SAndrew Lunn DSA_TAG_DRIVER(__ops); \ 1066d3b8c049SAndrew Lunn \ 1067d3b8c049SAndrew Lunn static struct dsa_tag_driver *dsa_tag_driver_array[] = { \ 1068d3b8c049SAndrew Lunn &DSA_TAG_DRIVER_NAME(__ops) \ 1069d3b8c049SAndrew Lunn }; \ 1070d3b8c049SAndrew Lunn module_dsa_tag_drivers(dsa_tag_driver_array) 107191da11f8SLennert Buytenhek #endif 1072d3b8c049SAndrew Lunn 1073