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 55cd87fecdSLuiz Angelo Daros de Luca #define DSA_TAG_PROTO_RTL8_4T_VALUE 25 56*a08d6a6dSClément Léger #define DSA_TAG_PROTO_RZN1_A5PSW_VALUE 26 570b42f033SAndrew Lunn 58ac7a04c3SFlorian Fainelli enum dsa_tag_protocol { 590b42f033SAndrew Lunn DSA_TAG_PROTO_NONE = DSA_TAG_PROTO_NONE_VALUE, 600b42f033SAndrew Lunn DSA_TAG_PROTO_BRCM = DSA_TAG_PROTO_BRCM_VALUE, 61964dbf18SÁlvaro Fernández Rojas DSA_TAG_PROTO_BRCM_LEGACY = DSA_TAG_PROTO_BRCM_LEGACY_VALUE, 620b42f033SAndrew Lunn DSA_TAG_PROTO_BRCM_PREPEND = DSA_TAG_PROTO_BRCM_PREPEND_VALUE, 630b42f033SAndrew Lunn DSA_TAG_PROTO_DSA = DSA_TAG_PROTO_DSA_VALUE, 640b42f033SAndrew Lunn DSA_TAG_PROTO_EDSA = DSA_TAG_PROTO_EDSA_VALUE, 650b42f033SAndrew Lunn DSA_TAG_PROTO_GSWIP = DSA_TAG_PROTO_GSWIP_VALUE, 660b42f033SAndrew Lunn DSA_TAG_PROTO_KSZ9477 = DSA_TAG_PROTO_KSZ9477_VALUE, 670b42f033SAndrew Lunn DSA_TAG_PROTO_KSZ9893 = DSA_TAG_PROTO_KSZ9893_VALUE, 680b42f033SAndrew Lunn DSA_TAG_PROTO_LAN9303 = DSA_TAG_PROTO_LAN9303_VALUE, 690b42f033SAndrew Lunn DSA_TAG_PROTO_MTK = DSA_TAG_PROTO_MTK_VALUE, 700b42f033SAndrew Lunn DSA_TAG_PROTO_QCA = DSA_TAG_PROTO_QCA_VALUE, 710b42f033SAndrew Lunn DSA_TAG_PROTO_TRAILER = DSA_TAG_PROTO_TRAILER_VALUE, 72f9bbe447SVladimir Oltean DSA_TAG_PROTO_8021Q = DSA_TAG_PROTO_8021Q_VALUE, 73227d07a0SVladimir Oltean DSA_TAG_PROTO_SJA1105 = DSA_TAG_PROTO_SJA1105_VALUE, 74016e43a2STristram Ha DSA_TAG_PROTO_KSZ8795 = DSA_TAG_PROTO_KSZ8795_VALUE, 758dce89aaSVladimir Oltean DSA_TAG_PROTO_OCELOT = DSA_TAG_PROTO_OCELOT_VALUE, 7648fda74fSOleksij Rempel DSA_TAG_PROTO_AR9331 = DSA_TAG_PROTO_AR9331_VALUE, 77efd7fe68SLinus Walleij DSA_TAG_PROTO_RTL4_A = DSA_TAG_PROTO_RTL4_A_VALUE, 7801ef09caSKurt Kanzenbach DSA_TAG_PROTO_HELLCREEK = DSA_TAG_PROTO_HELLCREEK_VALUE, 7954a52823SGeorge McCollister DSA_TAG_PROTO_XRS700X = DSA_TAG_PROTO_XRS700X_VALUE, 807c83a7c5SVladimir Oltean DSA_TAG_PROTO_OCELOT_8021Q = DSA_TAG_PROTO_OCELOT_8021Q_VALUE, 817c4bb540SVladimir Oltean DSA_TAG_PROTO_SEVILLE = DSA_TAG_PROTO_SEVILLE_VALUE, 824913b8ebSVladimir Oltean DSA_TAG_PROTO_SJA1110 = DSA_TAG_PROTO_SJA1110_VALUE, 831521d5adSAlvin Šipraga DSA_TAG_PROTO_RTL8_4 = DSA_TAG_PROTO_RTL8_4_VALUE, 84cd87fecdSLuiz Angelo Daros de Luca DSA_TAG_PROTO_RTL8_4T = DSA_TAG_PROTO_RTL8_4T_VALUE, 85*a08d6a6dSClément Léger DSA_TAG_PROTO_RZN1_A5PSW = DSA_TAG_PROTO_RZN1_A5PSW_VALUE, 86ac7a04c3SFlorian Fainelli }; 875037d532SFlorian Fainelli 8890af1059SBrandon Streiff struct dsa_switch; 893e8a72d1SFlorian Fainelli 9068277a2cSJohn Crispin struct dsa_device_ops { 9168277a2cSJohn Crispin struct sk_buff *(*xmit)(struct sk_buff *skb, struct net_device *dev); 9229a097b7SVladimir Oltean struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev); 932e8cb1b3SVladimir Oltean void (*flow_dissect)(const struct sk_buff *skb, __be16 *proto, 94598a9680SJohn Crispin int *offset); 957f297314SVladimir Oltean int (*connect)(struct dsa_switch *ds); 967f297314SVladimir Oltean void (*disconnect)(struct dsa_switch *ds); 974e500251SVladimir Oltean unsigned int needed_headroom; 984e500251SVladimir Oltean unsigned int needed_tailroom; 99875138f8SAndrew Lunn const char *name; 100056eed2fSAndrew Lunn enum dsa_tag_protocol proto; 101c3975400SVladimir Oltean /* Some tagging protocols either mangle or shift the destination MAC 102c3975400SVladimir Oltean * address, in which case the DSA master would drop packets on ingress 103c3975400SVladimir Oltean * if what it understands out of the destination MAC address is not in 104c3975400SVladimir Oltean * its RX filter. 105c3975400SVladimir Oltean */ 106c3975400SVladimir Oltean bool promisc_on_master; 10768277a2cSJohn Crispin }; 10868277a2cSJohn Crispin 1094cfab356SFlorian Fainelli /* This structure defines the control interfaces that are overlayed by the 1104cfab356SFlorian Fainelli * DSA layer on top of the DSA CPU/management net_device instance. This is 1114cfab356SFlorian Fainelli * used by the core net_device layer while calling various net_device_ops 1124cfab356SFlorian Fainelli * function pointers. 1134cfab356SFlorian Fainelli */ 1144cfab356SFlorian Fainelli struct dsa_netdevice_ops { 115a7605370SArnd Bergmann int (*ndo_eth_ioctl)(struct net_device *dev, struct ifreq *ifr, 1164cfab356SFlorian Fainelli int cmd); 1174cfab356SFlorian Fainelli }; 1184cfab356SFlorian Fainelli 1190b42f033SAndrew Lunn #define DSA_TAG_DRIVER_ALIAS "dsa_tag-" 1200b42f033SAndrew Lunn #define MODULE_ALIAS_DSA_TAG_DRIVER(__proto) \ 1210b42f033SAndrew Lunn MODULE_ALIAS(DSA_TAG_DRIVER_ALIAS __stringify(__proto##_VALUE)) 1220b42f033SAndrew Lunn 123dedd6a00SVladimir Oltean struct dsa_lag { 124dedd6a00SVladimir Oltean struct net_device *dev; 125dedd6a00SVladimir Oltean unsigned int id; 126e212fa7cSVladimir Oltean struct mutex fdb_lock; 127e212fa7cSVladimir Oltean struct list_head fdbs; 128dedd6a00SVladimir Oltean refcount_t refcount; 129dedd6a00SVladimir Oltean }; 130dedd6a00SVladimir Oltean 131cf50dcc2SBen Hutchings struct dsa_switch_tree { 13283c0afaeSAndrew Lunn struct list_head list; 13383c0afaeSAndrew Lunn 134b035c88cSVladimir Oltean /* List of switch ports */ 135b035c88cSVladimir Oltean struct list_head ports; 136b035c88cSVladimir Oltean 137f515f192SVivien Didelot /* Notifier chain for switch-wide events */ 138f515f192SVivien Didelot struct raw_notifier_head nh; 139f515f192SVivien Didelot 14083c0afaeSAndrew Lunn /* Tree identifier */ 14149463b7fSVivien Didelot unsigned int index; 14283c0afaeSAndrew Lunn 14383c0afaeSAndrew Lunn /* Number of switches attached to this tree */ 14483c0afaeSAndrew Lunn struct kref refcount; 14583c0afaeSAndrew Lunn 146b035c88cSVladimir Oltean /* Maps offloaded LAG netdevs to a zero-based linear ID for 147b035c88cSVladimir Oltean * drivers that need it. 148b035c88cSVladimir Oltean */ 149dedd6a00SVladimir Oltean struct dsa_lag **lags; 150b035c88cSVladimir Oltean 151357f203bSVladimir Oltean /* Tagging protocol operations */ 152357f203bSVladimir Oltean const struct dsa_device_ops *tag_ops; 153357f203bSVladimir Oltean 154deff7107STobias Waldekranz /* Default tagging protocol preferred by the switches in this 155deff7107STobias Waldekranz * tree. 156deff7107STobias Waldekranz */ 157deff7107STobias Waldekranz enum dsa_tag_protocol default_proto; 158deff7107STobias Waldekranz 1594b026e82SVladimir Oltean /* Has this tree been applied to the hardware? */ 1604b026e82SVladimir Oltean bool setup; 1614b026e82SVladimir Oltean 162cf50dcc2SBen Hutchings /* 163cf50dcc2SBen Hutchings * Configuration data for the platform device that owns 164cf50dcc2SBen Hutchings * this dsa switch tree instance. 165cf50dcc2SBen Hutchings */ 166cf50dcc2SBen Hutchings struct dsa_platform_data *pd; 167cf85d08fSLennert Buytenhek 168c5f51765SVivien Didelot /* List of DSA links composing the routing table */ 169c5f51765SVivien Didelot struct list_head rtable; 170058102a6STobias Waldekranz 171b035c88cSVladimir Oltean /* Length of "lags" array */ 172058102a6STobias Waldekranz unsigned int lags_len; 1735b22d366SVladimir Oltean 1745b22d366SVladimir Oltean /* Track the largest switch index within a tree */ 1755b22d366SVladimir Oltean unsigned int last_switch; 176cf50dcc2SBen Hutchings }; 177cf50dcc2SBen Hutchings 1783d4a0a2aSVladimir Oltean /* LAG IDs are one-based, the dst->lags array is zero-based */ 179058102a6STobias Waldekranz #define dsa_lags_foreach_id(_id, _dst) \ 1803d4a0a2aSVladimir Oltean for ((_id) = 1; (_id) <= (_dst)->lags_len; (_id)++) \ 1813d4a0a2aSVladimir Oltean if ((_dst)->lags[(_id) - 1]) 182058102a6STobias Waldekranz 183058102a6STobias Waldekranz #define dsa_lag_foreach_port(_dp, _dst, _lag) \ 184058102a6STobias Waldekranz list_for_each_entry((_dp), &(_dst)->ports, list) \ 185dedd6a00SVladimir Oltean if (dsa_port_offloads_lag((_dp), (_lag))) 186058102a6STobias Waldekranz 18718596f50SGeorge McCollister #define dsa_hsr_foreach_port(_dp, _ds, _hsr) \ 18818596f50SGeorge McCollister list_for_each_entry((_dp), &(_ds)->dst->ports, list) \ 18918596f50SGeorge McCollister if ((_dp)->ds == (_ds) && (_dp)->hsr_dev == (_hsr)) 19018596f50SGeorge McCollister 191dedd6a00SVladimir Oltean static inline struct dsa_lag *dsa_lag_by_id(struct dsa_switch_tree *dst, 192058102a6STobias Waldekranz unsigned int id) 193058102a6STobias Waldekranz { 1943d4a0a2aSVladimir Oltean /* DSA LAG IDs are one-based, dst->lags is zero-based */ 1953d4a0a2aSVladimir Oltean return dst->lags[id - 1]; 196058102a6STobias Waldekranz } 197058102a6STobias Waldekranz 198058102a6STobias Waldekranz static inline int dsa_lag_id(struct dsa_switch_tree *dst, 19946a76724SVladimir Oltean struct net_device *lag_dev) 200058102a6STobias Waldekranz { 201058102a6STobias Waldekranz unsigned int id; 202058102a6STobias Waldekranz 203058102a6STobias Waldekranz dsa_lags_foreach_id(id, dst) { 204dedd6a00SVladimir Oltean struct dsa_lag *lag = dsa_lag_by_id(dst, id); 205dedd6a00SVladimir Oltean 206dedd6a00SVladimir Oltean if (lag->dev == lag_dev) 207dedd6a00SVladimir Oltean return lag->id; 208058102a6STobias Waldekranz } 209058102a6STobias Waldekranz 210058102a6STobias Waldekranz return -ENODEV; 211058102a6STobias Waldekranz } 212058102a6STobias Waldekranz 21334297176SVladimir Oltean /* TC matchall action types */ 214f50f2127SFlorian Fainelli enum dsa_port_mall_action_type { 215f50f2127SFlorian Fainelli DSA_PORT_MALL_MIRROR, 21634297176SVladimir Oltean DSA_PORT_MALL_POLICER, 217f50f2127SFlorian Fainelli }; 218f50f2127SFlorian Fainelli 219f50f2127SFlorian Fainelli /* TC mirroring entry */ 220f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry { 221f50f2127SFlorian Fainelli u8 to_local_port; 222f50f2127SFlorian Fainelli bool ingress; 223f50f2127SFlorian Fainelli }; 224f50f2127SFlorian Fainelli 22534297176SVladimir Oltean /* TC port policer entry */ 22634297176SVladimir Oltean struct dsa_mall_policer_tc_entry { 2275f035af7SPo Liu u32 burst; 22834297176SVladimir Oltean u64 rate_bytes_per_sec; 22934297176SVladimir Oltean }; 23034297176SVladimir Oltean 231f50f2127SFlorian Fainelli /* TC matchall entry */ 232f50f2127SFlorian Fainelli struct dsa_mall_tc_entry { 233f50f2127SFlorian Fainelli struct list_head list; 234f50f2127SFlorian Fainelli unsigned long cookie; 235f50f2127SFlorian Fainelli enum dsa_port_mall_action_type type; 236f50f2127SFlorian Fainelli union { 237f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry mirror; 23834297176SVladimir Oltean struct dsa_mall_policer_tc_entry policer; 239f50f2127SFlorian Fainelli }; 240f50f2127SFlorian Fainelli }; 241f50f2127SFlorian Fainelli 242d3eed0e5SVladimir Oltean struct dsa_bridge { 243d3eed0e5SVladimir Oltean struct net_device *dev; 244d3eed0e5SVladimir Oltean unsigned int num; 245857fdd74SVladimir Oltean bool tx_fwd_offload; 246d3eed0e5SVladimir Oltean refcount_t refcount; 247d3eed0e5SVladimir Oltean }; 248f50f2127SFlorian Fainelli 249c8b09808SAndrew Lunn struct dsa_port { 250f8b8b1cdSVivien Didelot /* A CPU port is physically connected to a master device. 251f8b8b1cdSVivien Didelot * A user port exposed to userspace has a slave device. 252f8b8b1cdSVivien Didelot */ 253f8b8b1cdSVivien Didelot union { 254f8b8b1cdSVivien Didelot struct net_device *master; 255f8b8b1cdSVivien Didelot struct net_device *slave; 256f8b8b1cdSVivien Didelot }; 257f8b8b1cdSVivien Didelot 258357f203bSVladimir Oltean /* Copy of the tagging protocol operations, for quicker access 259357f203bSVladimir Oltean * in the data path. Valid only for the CPU ports. 260357f203bSVladimir Oltean */ 26115240248SVivien Didelot const struct dsa_device_ops *tag_ops; 26215240248SVivien Didelot 2633e41f93bSVivien Didelot /* Copies for faster access in master receive hot path */ 2643e41f93bSVivien Didelot struct dsa_switch_tree *dst; 26529a097b7SVladimir Oltean struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev); 2663e41f93bSVivien Didelot 26706251258SVladimir Oltean struct dsa_switch *ds; 26806251258SVladimir Oltean 26906251258SVladimir Oltean unsigned int index; 27006251258SVladimir Oltean 271057cad2cSVivien Didelot enum { 272057cad2cSVivien Didelot DSA_PORT_TYPE_UNUSED = 0, 273057cad2cSVivien Didelot DSA_PORT_TYPE_CPU, 274057cad2cSVivien Didelot DSA_PORT_TYPE_DSA, 275057cad2cSVivien Didelot DSA_PORT_TYPE_USER, 276057cad2cSVivien Didelot } type; 277057cad2cSVivien Didelot 27871e0bbdeSFlorian Fainelli const char *name; 27968b2d4a8SVivien Didelot struct dsa_port *cpu_dp; 28083216e39SMichael Walle u8 mac[ETH_ALEN]; 281b08db33dSVladimir Oltean 282b08db33dSVladimir Oltean u8 stp_state; 283b08db33dSVladimir Oltean 2841b26d364SVladimir Oltean /* Warning: the following bit fields are not atomic, and updating them 2851b26d364SVladimir Oltean * can only be done from code paths where concurrency is not possible 2861b26d364SVladimir Oltean * (probe time or under rtnl_lock). 2871b26d364SVladimir Oltean */ 28863cfc657SVladimir Oltean u8 vlan_filtering:1; 28963cfc657SVladimir Oltean 29063cfc657SVladimir Oltean /* Managed by DSA on user ports and by drivers on CPU and DSA ports */ 29163cfc657SVladimir Oltean u8 learning:1; 29263cfc657SVladimir Oltean 29363cfc657SVladimir Oltean u8 lag_tx_enabled:1; 29463cfc657SVladimir Oltean 29563cfc657SVladimir Oltean u8 devlink_port_setup:1; 29663cfc657SVladimir Oltean 297295ab96fSVladimir Oltean /* Master state bits, valid only on CPU ports */ 298295ab96fSVladimir Oltean u8 master_admin_up:1; 299295ab96fSVladimir Oltean u8 master_oper_up:1; 300295ab96fSVladimir Oltean 30163cfc657SVladimir Oltean u8 setup:1; 302bde82f38SVladimir Oltean 303189b0d93SAndrew Lunn struct device_node *dn; 30434a79f63SVivien Didelot unsigned int ageing_time; 305bde82f38SVladimir Oltean 306d3eed0e5SVladimir Oltean struct dsa_bridge *bridge; 30796567d5dSAndrew Lunn struct devlink_port devlink_port; 308aab9c406SFlorian Fainelli struct phylink *pl; 30944cc27e4SIoana Ciornei struct phylink_config pl_config; 310dedd6a00SVladimir Oltean struct dsa_lag *lag; 31118596f50SGeorge McCollister struct net_device *hsr_dev; 31297a69a0dSVladimir Oltean 313ab8ccae1SVivien Didelot struct list_head list; 314ab8ccae1SVivien Didelot 31567dbb9d4SFlorian Fainelli /* 31667dbb9d4SFlorian Fainelli * Original copy of the master netdev ethtool_ops 31767dbb9d4SFlorian Fainelli */ 31867dbb9d4SFlorian Fainelli const struct ethtool_ops *orig_ethtool_ops; 319da7b9e9bSFlorian Fainelli 320da7b9e9bSFlorian Fainelli /* 321da7b9e9bSFlorian Fainelli * Original copy of the master netdev net_device_ops 322da7b9e9bSFlorian Fainelli */ 3234cfab356SFlorian Fainelli const struct dsa_netdevice_ops *netdev_ops; 324fb35c60cSVivien Didelot 325161ca59dSVladimir Oltean /* List of MAC addresses that must be forwarded on this port. 326161ca59dSVladimir Oltean * These are only valid on CPU ports and DSA links. 327161ca59dSVladimir Oltean */ 328338a3a47SVladimir Oltean struct mutex addr_lists_lock; 3293f6e32f9SVladimir Oltean struct list_head fdbs; 330161ca59dSVladimir Oltean struct list_head mdbs; 331134ef238SVladimir Oltean 332134ef238SVladimir Oltean /* List of VLANs that CPU and DSA ports are members of. */ 333134ef238SVladimir Oltean struct mutex vlans_lock; 334134ef238SVladimir Oltean struct list_head vlans; 335c8b09808SAndrew Lunn }; 336c8b09808SAndrew Lunn 337c5f51765SVivien Didelot /* TODO: ideally DSA ports would have a single dp->link_dp member, 338c5f51765SVivien Didelot * and no dst->rtable nor this struct dsa_link would be needed, 339c5f51765SVivien Didelot * but this would require some more complex tree walking, 340c5f51765SVivien Didelot * so keep it stupid at the moment and list them all. 341c5f51765SVivien Didelot */ 342c5f51765SVivien Didelot struct dsa_link { 343c5f51765SVivien Didelot struct dsa_port *dp; 344c5f51765SVivien Didelot struct dsa_port *link_dp; 345c5f51765SVivien Didelot struct list_head list; 346c5f51765SVivien Didelot }; 347c5f51765SVivien Didelot 348c2693363SVladimir Oltean enum dsa_db_type { 349c2693363SVladimir Oltean DSA_DB_PORT, 350c2693363SVladimir Oltean DSA_DB_LAG, 351c2693363SVladimir Oltean DSA_DB_BRIDGE, 352c2693363SVladimir Oltean }; 353c2693363SVladimir Oltean 354c2693363SVladimir Oltean struct dsa_db { 355c2693363SVladimir Oltean enum dsa_db_type type; 356c2693363SVladimir Oltean 357c2693363SVladimir Oltean union { 358c2693363SVladimir Oltean const struct dsa_port *dp; 359c2693363SVladimir Oltean struct dsa_lag lag; 360c2693363SVladimir Oltean struct dsa_bridge bridge; 361c2693363SVladimir Oltean }; 362c2693363SVladimir Oltean }; 363c2693363SVladimir Oltean 364161ca59dSVladimir Oltean struct dsa_mac_addr { 365161ca59dSVladimir Oltean unsigned char addr[ETH_ALEN]; 366161ca59dSVladimir Oltean u16 vid; 367161ca59dSVladimir Oltean refcount_t refcount; 368161ca59dSVladimir Oltean struct list_head list; 369c2693363SVladimir Oltean struct dsa_db db; 370161ca59dSVladimir Oltean }; 371161ca59dSVladimir Oltean 372134ef238SVladimir Oltean struct dsa_vlan { 373134ef238SVladimir Oltean u16 vid; 374134ef238SVladimir Oltean refcount_t refcount; 375134ef238SVladimir Oltean struct list_head list; 376134ef238SVladimir Oltean }; 377134ef238SVladimir Oltean 378c8f0b869SBen Hutchings struct dsa_switch { 379c33063d6SAndrew Lunn struct device *dev; 380c33063d6SAndrew Lunn 381c8f0b869SBen Hutchings /* 382c8f0b869SBen Hutchings * Parent switch tree, and switch index. 383c8f0b869SBen Hutchings */ 384c8f0b869SBen Hutchings struct dsa_switch_tree *dst; 38599feaafcSVivien Didelot unsigned int index; 386c8f0b869SBen Hutchings 3871b26d364SVladimir Oltean /* Warning: the following bit fields are not atomic, and updating them 3881b26d364SVladimir Oltean * can only be done from code paths where concurrency is not possible 3891b26d364SVladimir Oltean * (probe time or under rtnl_lock). 3901b26d364SVladimir Oltean */ 39163cfc657SVladimir Oltean u32 setup:1; 39263cfc657SVladimir Oltean 39363cfc657SVladimir Oltean /* Disallow bridge core from requesting different VLAN awareness 39463cfc657SVladimir Oltean * settings on ports if not hardware-supported 3957787ff77SVladimir Oltean */ 39663cfc657SVladimir Oltean u32 vlan_filtering_is_global:1; 39763cfc657SVladimir Oltean 39863cfc657SVladimir Oltean /* Keep VLAN filtering enabled on ports not offloading any upper */ 39963cfc657SVladimir Oltean u32 needs_standalone_vlan_filtering:1; 40063cfc657SVladimir Oltean 40163cfc657SVladimir Oltean /* Pass .port_vlan_add and .port_vlan_del to drivers even for bridges 40263cfc657SVladimir Oltean * that have vlan_filtering=0. All drivers should ideally set this (and 40363cfc657SVladimir Oltean * then the option would get removed), but it is unknown whether this 4047787ff77SVladimir Oltean * would break things or not. 4057787ff77SVladimir Oltean */ 40663cfc657SVladimir Oltean u32 configure_vlan_while_not_filtering:1; 40763cfc657SVladimir Oltean 40863cfc657SVladimir Oltean /* If the switch driver always programs the CPU port as egress tagged 40963cfc657SVladimir Oltean * despite the VLAN configuration indicating otherwise, then setting 41063cfc657SVladimir Oltean * @untag_bridge_pvid will force the DSA receive path to pop the 41163cfc657SVladimir Oltean * bridge's default_pvid VLAN tagged frames to offer a consistent 41263cfc657SVladimir Oltean * behavior between a vlan_filtering=0 and vlan_filtering=1 bridge 4137787ff77SVladimir Oltean * device. 4147787ff77SVladimir Oltean */ 41563cfc657SVladimir Oltean u32 untag_bridge_pvid:1; 41663cfc657SVladimir Oltean 4177787ff77SVladimir Oltean /* Let DSA manage the FDB entries towards the 4187787ff77SVladimir Oltean * CPU, based on the software bridge database. 4197787ff77SVladimir Oltean */ 42063cfc657SVladimir Oltean u32 assisted_learning_on_cpu_port:1; 42163cfc657SVladimir Oltean 42263cfc657SVladimir Oltean /* In case vlan_filtering_is_global is set, the VLAN awareness state 42363cfc657SVladimir Oltean * should be retrieved from here and not from the per-port settings. 4247787ff77SVladimir Oltean */ 42563cfc657SVladimir Oltean u32 vlan_filtering:1; 42663cfc657SVladimir Oltean 42763cfc657SVladimir Oltean /* For switches that only have the MRU configurable. To ensure the 42863cfc657SVladimir Oltean * configured MTU is not exceeded, normalization of MRU on all bridged 42963cfc657SVladimir Oltean * interfaces is needed. 4307787ff77SVladimir Oltean */ 43163cfc657SVladimir Oltean u32 mtu_enforcement_ingress:1; 4327787ff77SVladimir Oltean 433c2693363SVladimir Oltean /* Drivers that isolate the FDBs of multiple bridges must set this 434c2693363SVladimir Oltean * to true to receive the bridge as an argument in .port_fdb_{add,del} 435c2693363SVladimir Oltean * and .port_mdb_{add,del}. Otherwise, the bridge.num will always be 436c2693363SVladimir Oltean * passed as zero. 437c2693363SVladimir Oltean */ 438c2693363SVladimir Oltean u32 fdb_isolation:1; 439c2693363SVladimir Oltean 440f515f192SVivien Didelot /* Listener for switch fabric events */ 441f515f192SVivien Didelot struct notifier_block nb; 442f515f192SVivien Didelot 443c8f0b869SBen Hutchings /* 4447543a6d5SAndrew Lunn * Give the switch driver somewhere to hang its private data 4457543a6d5SAndrew Lunn * structure. 4467543a6d5SAndrew Lunn */ 4477543a6d5SAndrew Lunn void *priv; 4487543a6d5SAndrew Lunn 449dc452a47SVladimir Oltean void *tagger_data; 450dc452a47SVladimir Oltean 4517543a6d5SAndrew Lunn /* 452c8f0b869SBen Hutchings * Configuration data for this switch. 453c8f0b869SBen Hutchings */ 454ff04955cSAndrew Lunn struct dsa_chip_data *cd; 455c8f0b869SBen Hutchings 456c8f0b869SBen Hutchings /* 4579d490b4eSVivien Didelot * The switch operations. 458c8f0b869SBen Hutchings */ 459a82f67afSFlorian Fainelli const struct dsa_switch_ops *ops; 460c8f0b869SBen Hutchings 46166472fc0SAndrew Lunn /* 462c8f0b869SBen Hutchings * Slave mii_bus and devices for the individual ports. 463c8f0b869SBen Hutchings */ 4640d8bcdd3SFlorian Fainelli u32 phys_mii_mask; 465c8f0b869SBen Hutchings struct mii_bus *slave_mii_bus; 466a0c02161SVivien Didelot 4670f3da6afSVivien Didelot /* Ageing Time limits in msecs */ 4680f3da6afSVivien Didelot unsigned int ageing_time_min; 4690f3da6afSVivien Didelot unsigned int ageing_time_max; 4700f3da6afSVivien Didelot 471d7b1fd52SVladimir Oltean /* Storage for drivers using tag_8021q */ 472d7b1fd52SVladimir Oltean struct dsa_8021q_context *tag_8021q_ctx; 473d7b1fd52SVladimir Oltean 47496567d5dSAndrew Lunn /* devlink used to represent this switch device */ 47596567d5dSAndrew Lunn struct devlink *devlink; 47696567d5dSAndrew Lunn 47755199df6SFlorian Fainelli /* Number of switch port queues */ 47855199df6SFlorian Fainelli unsigned int num_tx_queues; 47955199df6SFlorian Fainelli 480058102a6STobias Waldekranz /* Drivers that benefit from having an ID associated with each 481058102a6STobias Waldekranz * offloaded LAG should set this to the maximum number of 482058102a6STobias Waldekranz * supported IDs. DSA will then maintain a mapping of _at 483058102a6STobias Waldekranz * least_ these many IDs, accessible to drivers via 484058102a6STobias Waldekranz * dsa_lag_id(). 485058102a6STobias Waldekranz */ 486058102a6STobias Waldekranz unsigned int num_lag_ids; 487058102a6STobias Waldekranz 488947c8746SVladimir Oltean /* Drivers that support bridge forwarding offload or FDB isolation 489947c8746SVladimir Oltean * should set this to the maximum number of bridges spanning the same 490947c8746SVladimir Oltean * switch tree (or all trees, in the case of cross-tree bridging 491947c8746SVladimir Oltean * support) that can be offloaded. 492123abc06SVladimir Oltean */ 493947c8746SVladimir Oltean unsigned int max_num_bridges; 494123abc06SVladimir Oltean 495258030acSVladimir Oltean unsigned int num_ports; 496c8f0b869SBen Hutchings }; 497c8f0b869SBen Hutchings 49868bb8ea8SVivien Didelot static inline struct dsa_port *dsa_to_port(struct dsa_switch *ds, int p) 499c38c5a66SVivien Didelot { 500b96ddf25SVivien Didelot struct dsa_switch_tree *dst = ds->dst; 501d607525bSVivien Didelot struct dsa_port *dp; 502b96ddf25SVivien Didelot 503b96ddf25SVivien Didelot list_for_each_entry(dp, &dst->ports, list) 504b96ddf25SVivien Didelot if (dp->ds == ds && dp->index == p) 505b96ddf25SVivien Didelot return dp; 506d607525bSVivien Didelot 507d607525bSVivien Didelot return NULL; 508c38c5a66SVivien Didelot } 509c38c5a66SVivien Didelot 510a8986681SVladimir Oltean static inline bool dsa_port_is_dsa(struct dsa_port *port) 511a8986681SVladimir Oltean { 512a8986681SVladimir Oltean return port->type == DSA_PORT_TYPE_DSA; 513a8986681SVladimir Oltean } 514a8986681SVladimir Oltean 515a8986681SVladimir Oltean static inline bool dsa_port_is_cpu(struct dsa_port *port) 516a8986681SVladimir Oltean { 517a8986681SVladimir Oltean return port->type == DSA_PORT_TYPE_CPU; 518a8986681SVladimir Oltean } 519a8986681SVladimir Oltean 520a8986681SVladimir Oltean static inline bool dsa_port_is_user(struct dsa_port *dp) 521a8986681SVladimir Oltean { 522a8986681SVladimir Oltean return dp->type == DSA_PORT_TYPE_USER; 523a8986681SVladimir Oltean } 524a8986681SVladimir Oltean 525a57d8c21SVladimir Oltean static inline bool dsa_port_is_unused(struct dsa_port *dp) 526a57d8c21SVladimir Oltean { 527a57d8c21SVladimir Oltean return dp->type == DSA_PORT_TYPE_UNUSED; 528a57d8c21SVladimir Oltean } 529a57d8c21SVladimir Oltean 530295ab96fSVladimir Oltean static inline bool dsa_port_master_is_operational(struct dsa_port *dp) 531295ab96fSVladimir Oltean { 532295ab96fSVladimir Oltean return dsa_port_is_cpu(dp) && dp->master_admin_up && 533295ab96fSVladimir Oltean dp->master_oper_up; 534295ab96fSVladimir Oltean } 535295ab96fSVladimir Oltean 536bff7b688SVivien Didelot static inline bool dsa_is_unused_port(struct dsa_switch *ds, int p) 537bff7b688SVivien Didelot { 538c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_UNUSED; 539bff7b688SVivien Didelot } 540bff7b688SVivien Didelot 541c8f0b869SBen Hutchings static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p) 542c8f0b869SBen Hutchings { 543c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_CPU; 544c8f0b869SBen Hutchings } 545c8f0b869SBen Hutchings 54660045cbfSAndrew Lunn static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p) 54760045cbfSAndrew Lunn { 548c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_DSA; 54960045cbfSAndrew Lunn } 55060045cbfSAndrew Lunn 5512b3e9891SVivien Didelot static inline bool dsa_is_user_port(struct dsa_switch *ds, int p) 5526cd456f3SVivien Didelot { 553c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_USER; 5546cd456f3SVivien Didelot } 5556cd456f3SVivien Didelot 55682b31898SVladimir Oltean #define dsa_tree_for_each_user_port(_dp, _dst) \ 55782b31898SVladimir Oltean list_for_each_entry((_dp), &(_dst)->ports, list) \ 55882b31898SVladimir Oltean if (dsa_port_is_user((_dp))) 55982b31898SVladimir Oltean 56082b31898SVladimir Oltean #define dsa_switch_for_each_port(_dp, _ds) \ 56182b31898SVladimir Oltean list_for_each_entry((_dp), &(_ds)->dst->ports, list) \ 56282b31898SVladimir Oltean if ((_dp)->ds == (_ds)) 56382b31898SVladimir Oltean 56482b31898SVladimir Oltean #define dsa_switch_for_each_port_safe(_dp, _next, _ds) \ 56582b31898SVladimir Oltean list_for_each_entry_safe((_dp), (_next), &(_ds)->dst->ports, list) \ 56682b31898SVladimir Oltean if ((_dp)->ds == (_ds)) 56782b31898SVladimir Oltean 56882b31898SVladimir Oltean #define dsa_switch_for_each_port_continue_reverse(_dp, _ds) \ 56982b31898SVladimir Oltean list_for_each_entry_continue_reverse((_dp), &(_ds)->dst->ports, list) \ 57082b31898SVladimir Oltean if ((_dp)->ds == (_ds)) 57182b31898SVladimir Oltean 57282b31898SVladimir Oltean #define dsa_switch_for_each_available_port(_dp, _ds) \ 57382b31898SVladimir Oltean dsa_switch_for_each_port((_dp), (_ds)) \ 57482b31898SVladimir Oltean if (!dsa_port_is_unused((_dp))) 57582b31898SVladimir Oltean 57682b31898SVladimir Oltean #define dsa_switch_for_each_user_port(_dp, _ds) \ 57782b31898SVladimir Oltean dsa_switch_for_each_port((_dp), (_ds)) \ 57882b31898SVladimir Oltean if (dsa_port_is_user((_dp))) 57982b31898SVladimir Oltean 58082b31898SVladimir Oltean #define dsa_switch_for_each_cpu_port(_dp, _ds) \ 58182b31898SVladimir Oltean dsa_switch_for_each_port((_dp), (_ds)) \ 58282b31898SVladimir Oltean if (dsa_port_is_cpu((_dp))) 58382b31898SVladimir Oltean 584bacf93b0SVladimir Oltean #define dsa_switch_for_each_cpu_port_continue_reverse(_dp, _ds) \ 585bacf93b0SVladimir Oltean dsa_switch_for_each_port_continue_reverse((_dp), (_ds)) \ 586bacf93b0SVladimir Oltean if (dsa_port_is_cpu((_dp))) 587bacf93b0SVladimir Oltean 58802bc6e54SVivien Didelot static inline u32 dsa_user_ports(struct dsa_switch *ds) 58902bc6e54SVivien Didelot { 590d0004a02SVladimir Oltean struct dsa_port *dp; 591c38c5a66SVivien Didelot u32 mask = 0; 59202bc6e54SVivien Didelot 593d0004a02SVladimir Oltean dsa_switch_for_each_user_port(dp, ds) 594d0004a02SVladimir Oltean mask |= BIT(dp->index); 595c38c5a66SVivien Didelot 596c38c5a66SVivien Didelot return mask; 597c8652c83SVivien Didelot } 598c8652c83SVivien Didelot 599465c3de4SVladimir Oltean static inline u32 dsa_cpu_ports(struct dsa_switch *ds) 600465c3de4SVladimir Oltean { 601465c3de4SVladimir Oltean struct dsa_port *cpu_dp; 602465c3de4SVladimir Oltean u32 mask = 0; 603465c3de4SVladimir Oltean 604465c3de4SVladimir Oltean dsa_switch_for_each_cpu_port(cpu_dp, ds) 605465c3de4SVladimir Oltean mask |= BIT(cpu_dp->index); 606465c3de4SVladimir Oltean 607465c3de4SVladimir Oltean return mask; 608465c3de4SVladimir Oltean } 609465c3de4SVladimir Oltean 610c5f51765SVivien Didelot /* Return the local port used to reach an arbitrary switch device */ 611c5f51765SVivien Didelot static inline unsigned int dsa_routing_port(struct dsa_switch *ds, int device) 612c5f51765SVivien Didelot { 613c5f51765SVivien Didelot struct dsa_switch_tree *dst = ds->dst; 614c5f51765SVivien Didelot struct dsa_link *dl; 615c5f51765SVivien Didelot 616c5f51765SVivien Didelot list_for_each_entry(dl, &dst->rtable, list) 617c5f51765SVivien Didelot if (dl->dp->ds == ds && dl->link_dp->ds->index == device) 618c5f51765SVivien Didelot return dl->dp->index; 619c5f51765SVivien Didelot 620c5f51765SVivien Didelot return ds->num_ports; 621c5f51765SVivien Didelot } 622c5f51765SVivien Didelot 6233b8fac5dSVivien Didelot /* Return the local port used to reach an arbitrary switch port */ 6243b8fac5dSVivien Didelot static inline unsigned int dsa_towards_port(struct dsa_switch *ds, int device, 6253b8fac5dSVivien Didelot int port) 6263b8fac5dSVivien Didelot { 6273b8fac5dSVivien Didelot if (device == ds->index) 6283b8fac5dSVivien Didelot return port; 6293b8fac5dSVivien Didelot else 630c5f51765SVivien Didelot return dsa_routing_port(ds, device); 6313b8fac5dSVivien Didelot } 6323b8fac5dSVivien Didelot 6333b8fac5dSVivien Didelot /* Return the local port used to reach the dedicated CPU port */ 63407073c79SVivien Didelot static inline unsigned int dsa_upstream_port(struct dsa_switch *ds, int port) 635c8f0b869SBen Hutchings { 63607073c79SVivien Didelot const struct dsa_port *dp = dsa_to_port(ds, port); 63707073c79SVivien Didelot const struct dsa_port *cpu_dp = dp->cpu_dp; 63807073c79SVivien Didelot 63907073c79SVivien Didelot if (!cpu_dp) 64007073c79SVivien Didelot return port; 641c8f0b869SBen Hutchings 6423b8fac5dSVivien Didelot return dsa_towards_port(ds, cpu_dp->ds->index, cpu_dp->index); 643c8f0b869SBen Hutchings } 644c8f0b869SBen Hutchings 64563609c8fSVladimir Oltean /* Return true if this is the local port used to reach the CPU port */ 64663609c8fSVladimir Oltean static inline bool dsa_is_upstream_port(struct dsa_switch *ds, int port) 64763609c8fSVladimir Oltean { 64863609c8fSVladimir Oltean if (dsa_is_unused_port(ds, port)) 64963609c8fSVladimir Oltean return false; 65063609c8fSVladimir Oltean 65163609c8fSVladimir Oltean return port == dsa_upstream_port(ds, port); 65263609c8fSVladimir Oltean } 65363609c8fSVladimir Oltean 654d352b20fSTobias Waldekranz /* Return true if this is a DSA port leading away from the CPU */ 655d352b20fSTobias Waldekranz static inline bool dsa_is_downstream_port(struct dsa_switch *ds, int port) 656d352b20fSTobias Waldekranz { 657d352b20fSTobias Waldekranz return dsa_is_dsa_port(ds, port) && !dsa_is_upstream_port(ds, port); 658d352b20fSTobias Waldekranz } 659d352b20fSTobias Waldekranz 6607af4a361STobias Waldekranz /* Return the local port used to reach the CPU port */ 6617af4a361STobias Waldekranz static inline unsigned int dsa_switch_upstream_port(struct dsa_switch *ds) 6627af4a361STobias Waldekranz { 6637af4a361STobias Waldekranz struct dsa_port *dp; 6647af4a361STobias Waldekranz 6657af4a361STobias Waldekranz dsa_switch_for_each_available_port(dp, ds) { 6667af4a361STobias Waldekranz return dsa_upstream_port(ds, dp->index); 6677af4a361STobias Waldekranz } 6687af4a361STobias Waldekranz 6697af4a361STobias Waldekranz return ds->num_ports; 6707af4a361STobias Waldekranz } 6717af4a361STobias Waldekranz 67263609c8fSVladimir Oltean /* Return true if @upstream_ds is an upstream switch of @downstream_ds, meaning 67363609c8fSVladimir Oltean * that the routing port from @downstream_ds to @upstream_ds is also the port 67463609c8fSVladimir Oltean * which @downstream_ds uses to reach its dedicated CPU. 67563609c8fSVladimir Oltean */ 67663609c8fSVladimir Oltean static inline bool dsa_switch_is_upstream_of(struct dsa_switch *upstream_ds, 67763609c8fSVladimir Oltean struct dsa_switch *downstream_ds) 67863609c8fSVladimir Oltean { 67963609c8fSVladimir Oltean int routing_port; 68063609c8fSVladimir Oltean 68163609c8fSVladimir Oltean if (upstream_ds == downstream_ds) 68263609c8fSVladimir Oltean return true; 68363609c8fSVladimir Oltean 68463609c8fSVladimir Oltean routing_port = dsa_routing_port(downstream_ds, upstream_ds->index); 68563609c8fSVladimir Oltean 68663609c8fSVladimir Oltean return dsa_is_upstream_port(downstream_ds, routing_port); 68763609c8fSVladimir Oltean } 68863609c8fSVladimir Oltean 689cf2d45f5SVladimir Oltean static inline bool dsa_port_is_vlan_filtering(const struct dsa_port *dp) 690cf2d45f5SVladimir Oltean { 691cf2d45f5SVladimir Oltean const struct dsa_switch *ds = dp->ds; 692cf2d45f5SVladimir Oltean 693cf2d45f5SVladimir Oltean if (ds->vlan_filtering_is_global) 694cf2d45f5SVladimir Oltean return ds->vlan_filtering; 695cf2d45f5SVladimir Oltean else 696cf2d45f5SVladimir Oltean return dp->vlan_filtering; 697cf2d45f5SVladimir Oltean } 698cf2d45f5SVladimir Oltean 699dedd6a00SVladimir Oltean static inline unsigned int dsa_port_lag_id_get(struct dsa_port *dp) 700dedd6a00SVladimir Oltean { 701dedd6a00SVladimir Oltean return dp->lag ? dp->lag->id : 0; 702dedd6a00SVladimir Oltean } 703dedd6a00SVladimir Oltean 704dedd6a00SVladimir Oltean static inline struct net_device *dsa_port_lag_dev_get(struct dsa_port *dp) 705dedd6a00SVladimir Oltean { 706dedd6a00SVladimir Oltean return dp->lag ? dp->lag->dev : NULL; 707dedd6a00SVladimir Oltean } 708dedd6a00SVladimir Oltean 709dedd6a00SVladimir Oltean static inline bool dsa_port_offloads_lag(struct dsa_port *dp, 710dedd6a00SVladimir Oltean const struct dsa_lag *lag) 711dedd6a00SVladimir Oltean { 712dedd6a00SVladimir Oltean return dsa_port_lag_dev_get(dp) == lag->dev; 713dedd6a00SVladimir Oltean } 714dedd6a00SVladimir Oltean 715cc76ce9eSTobias Waldekranz static inline 716cc76ce9eSTobias Waldekranz struct net_device *dsa_port_to_bridge_port(const struct dsa_port *dp) 717cc76ce9eSTobias Waldekranz { 718d3eed0e5SVladimir Oltean if (!dp->bridge) 719cc76ce9eSTobias Waldekranz return NULL; 720cc76ce9eSTobias Waldekranz 721dedd6a00SVladimir Oltean if (dp->lag) 722dedd6a00SVladimir Oltean return dp->lag->dev; 723cc76ce9eSTobias Waldekranz else if (dp->hsr_dev) 724cc76ce9eSTobias Waldekranz return dp->hsr_dev; 725cc76ce9eSTobias Waldekranz 726cc76ce9eSTobias Waldekranz return dp->slave; 727cc76ce9eSTobias Waldekranz } 728cc76ce9eSTobias Waldekranz 72936cbf39bSVladimir Oltean static inline struct net_device * 73036cbf39bSVladimir Oltean dsa_port_bridge_dev_get(const struct dsa_port *dp) 73136cbf39bSVladimir Oltean { 732d3eed0e5SVladimir Oltean return dp->bridge ? dp->bridge->dev : NULL; 73336cbf39bSVladimir Oltean } 73436cbf39bSVladimir Oltean 73536cbf39bSVladimir Oltean static inline unsigned int dsa_port_bridge_num_get(struct dsa_port *dp) 73636cbf39bSVladimir Oltean { 737d3eed0e5SVladimir Oltean return dp->bridge ? dp->bridge->num : 0; 73836cbf39bSVladimir Oltean } 73936cbf39bSVladimir Oltean 74036cbf39bSVladimir Oltean static inline bool dsa_port_bridge_same(const struct dsa_port *a, 74136cbf39bSVladimir Oltean const struct dsa_port *b) 74236cbf39bSVladimir Oltean { 74336cbf39bSVladimir Oltean struct net_device *br_a = dsa_port_bridge_dev_get(a); 74436cbf39bSVladimir Oltean struct net_device *br_b = dsa_port_bridge_dev_get(b); 74536cbf39bSVladimir Oltean 74636cbf39bSVladimir Oltean /* Standalone ports are not in the same bridge with one another */ 74736cbf39bSVladimir Oltean return (!br_a || !br_b) ? false : (br_a == br_b); 74836cbf39bSVladimir Oltean } 74936cbf39bSVladimir Oltean 7506a43cba3SVladimir Oltean static inline bool dsa_port_offloads_bridge_port(struct dsa_port *dp, 7516a43cba3SVladimir Oltean const struct net_device *dev) 7526a43cba3SVladimir Oltean { 7536a43cba3SVladimir Oltean return dsa_port_to_bridge_port(dp) == dev; 7546a43cba3SVladimir Oltean } 7556a43cba3SVladimir Oltean 7566a43cba3SVladimir Oltean static inline bool 7576a43cba3SVladimir Oltean dsa_port_offloads_bridge_dev(struct dsa_port *dp, 7586a43cba3SVladimir Oltean const struct net_device *bridge_dev) 7596a43cba3SVladimir Oltean { 7606a43cba3SVladimir Oltean /* DSA ports connected to a bridge, and event was emitted 7616a43cba3SVladimir Oltean * for the bridge. 7626a43cba3SVladimir Oltean */ 7636a43cba3SVladimir Oltean return dsa_port_bridge_dev_get(dp) == bridge_dev; 7646a43cba3SVladimir Oltean } 7656a43cba3SVladimir Oltean 766d3eed0e5SVladimir Oltean static inline bool dsa_port_offloads_bridge(struct dsa_port *dp, 767d3eed0e5SVladimir Oltean const struct dsa_bridge *bridge) 768d3eed0e5SVladimir Oltean { 769d3eed0e5SVladimir Oltean return dsa_port_bridge_dev_get(dp) == bridge->dev; 770d3eed0e5SVladimir Oltean } 771d3eed0e5SVladimir Oltean 7726a43cba3SVladimir Oltean /* Returns true if any port of this tree offloads the given net_device */ 7736a43cba3SVladimir Oltean static inline bool dsa_tree_offloads_bridge_port(struct dsa_switch_tree *dst, 7746a43cba3SVladimir Oltean const struct net_device *dev) 7756a43cba3SVladimir Oltean { 7766a43cba3SVladimir Oltean struct dsa_port *dp; 7776a43cba3SVladimir Oltean 7786a43cba3SVladimir Oltean list_for_each_entry(dp, &dst->ports, list) 7796a43cba3SVladimir Oltean if (dsa_port_offloads_bridge_port(dp, dev)) 7806a43cba3SVladimir Oltean return true; 7816a43cba3SVladimir Oltean 7826a43cba3SVladimir Oltean return false; 7836a43cba3SVladimir Oltean } 7846a43cba3SVladimir Oltean 7856a43cba3SVladimir Oltean /* Returns true if any port of this tree offloads the given bridge */ 7866a43cba3SVladimir Oltean static inline bool 7876a43cba3SVladimir Oltean dsa_tree_offloads_bridge_dev(struct dsa_switch_tree *dst, 7886a43cba3SVladimir Oltean const struct net_device *bridge_dev) 7896a43cba3SVladimir Oltean { 7906a43cba3SVladimir Oltean struct dsa_port *dp; 7916a43cba3SVladimir Oltean 7926a43cba3SVladimir Oltean list_for_each_entry(dp, &dst->ports, list) 7936a43cba3SVladimir Oltean if (dsa_port_offloads_bridge_dev(dp, bridge_dev)) 7946a43cba3SVladimir Oltean return true; 7956a43cba3SVladimir Oltean 7966a43cba3SVladimir Oltean return false; 7976a43cba3SVladimir Oltean } 7986a43cba3SVladimir Oltean 7992bedde1aSArkadi Sharshevsky typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid, 8002bedde1aSArkadi Sharshevsky bool is_static, void *data); 8019d490b4eSVivien Didelot struct dsa_switch_ops { 80253da0ebaSVladimir Oltean /* 80353da0ebaSVladimir Oltean * Tagging protocol helpers called for the CPU ports and DSA links. 80453da0ebaSVladimir Oltean * @get_tag_protocol retrieves the initial tagging protocol and is 80553da0ebaSVladimir Oltean * mandatory. Switches which can operate using multiple tagging 80653da0ebaSVladimir Oltean * protocols should implement @change_tag_protocol and report in 80753da0ebaSVladimir Oltean * @get_tag_protocol the tagger in current use. 80853da0ebaSVladimir Oltean */ 8095ed4e3ebSFlorian Fainelli enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds, 8104d776482SFlorian Fainelli int port, 8114d776482SFlorian Fainelli enum dsa_tag_protocol mprot); 812bacf93b0SVladimir Oltean int (*change_tag_protocol)(struct dsa_switch *ds, 81353da0ebaSVladimir Oltean enum dsa_tag_protocol proto); 814dc452a47SVladimir Oltean /* 815dc452a47SVladimir Oltean * Method for switch drivers to connect to the tagging protocol driver 816dc452a47SVladimir Oltean * in current use. The switch driver can provide handlers for certain 817dc452a47SVladimir Oltean * types of packets for switch management. 818dc452a47SVladimir Oltean */ 819dc452a47SVladimir Oltean int (*connect_tag_protocol)(struct dsa_switch *ds, 820dc452a47SVladimir Oltean enum dsa_tag_protocol proto); 8217b314362SAndrew Lunn 822fd292c18SVladimir Oltean /* Optional switch-wide initialization and destruction methods */ 823c8f0b869SBen Hutchings int (*setup)(struct dsa_switch *ds); 8245e3f847aSVladimir Oltean void (*teardown)(struct dsa_switch *ds); 825fd292c18SVladimir Oltean 826fd292c18SVladimir Oltean /* Per-port initialization and destruction methods. Mandatory if the 827fd292c18SVladimir Oltean * driver registers devlink port regions, optional otherwise. 828fd292c18SVladimir Oltean */ 829fd292c18SVladimir Oltean int (*port_setup)(struct dsa_switch *ds, int port); 830fd292c18SVladimir Oltean void (*port_teardown)(struct dsa_switch *ds, int port); 831fd292c18SVladimir Oltean 8326819563eSFlorian Fainelli u32 (*get_phy_flags)(struct dsa_switch *ds, int port); 833c8f0b869SBen Hutchings 834c8f0b869SBen Hutchings /* 835c8f0b869SBen Hutchings * Access to the switch's PHY registers. 836c8f0b869SBen Hutchings */ 837c8f0b869SBen Hutchings int (*phy_read)(struct dsa_switch *ds, int port, int regnum); 838c8f0b869SBen Hutchings int (*phy_write)(struct dsa_switch *ds, int port, 839c8f0b869SBen Hutchings int regnum, u16 val); 840c8f0b869SBen Hutchings 841c8f0b869SBen Hutchings /* 842ec9436baSFlorian Fainelli * Link state adjustment (called from libphy) 843ec9436baSFlorian Fainelli */ 844ec9436baSFlorian Fainelli void (*adjust_link)(struct dsa_switch *ds, int port, 845ec9436baSFlorian Fainelli struct phy_device *phydev); 846ce31b31cSFlorian Fainelli void (*fixed_link_update)(struct dsa_switch *ds, int port, 847ce31b31cSFlorian Fainelli struct fixed_phy_status *st); 848ec9436baSFlorian Fainelli 849ec9436baSFlorian Fainelli /* 85011d8f3ddSFlorian Fainelli * PHYLINK integration 85111d8f3ddSFlorian Fainelli */ 852072eea6cSRussell King (Oracle) void (*phylink_get_caps)(struct dsa_switch *ds, int port, 853072eea6cSRussell King (Oracle) struct phylink_config *config); 85411d8f3ddSFlorian Fainelli void (*phylink_validate)(struct dsa_switch *ds, int port, 85511d8f3ddSFlorian Fainelli unsigned long *supported, 85611d8f3ddSFlorian Fainelli struct phylink_link_state *state); 857bde01822SRussell King (Oracle) struct phylink_pcs *(*phylink_mac_select_pcs)(struct dsa_switch *ds, 858bde01822SRussell King (Oracle) int port, 859bde01822SRussell King (Oracle) phy_interface_t iface); 86011d8f3ddSFlorian Fainelli int (*phylink_mac_link_state)(struct dsa_switch *ds, int port, 86111d8f3ddSFlorian Fainelli struct phylink_link_state *state); 86211d8f3ddSFlorian Fainelli void (*phylink_mac_config)(struct dsa_switch *ds, int port, 86311d8f3ddSFlorian Fainelli unsigned int mode, 86411d8f3ddSFlorian Fainelli const struct phylink_link_state *state); 86511d8f3ddSFlorian Fainelli void (*phylink_mac_an_restart)(struct dsa_switch *ds, int port); 86611d8f3ddSFlorian Fainelli void (*phylink_mac_link_down)(struct dsa_switch *ds, int port, 86711d8f3ddSFlorian Fainelli unsigned int mode, 86811d8f3ddSFlorian Fainelli phy_interface_t interface); 86911d8f3ddSFlorian Fainelli void (*phylink_mac_link_up)(struct dsa_switch *ds, int port, 87011d8f3ddSFlorian Fainelli unsigned int mode, 87111d8f3ddSFlorian Fainelli phy_interface_t interface, 8725b502a7bSRussell King struct phy_device *phydev, 8735b502a7bSRussell King int speed, int duplex, 8745b502a7bSRussell King bool tx_pause, bool rx_pause); 87511d8f3ddSFlorian Fainelli void (*phylink_fixed_state)(struct dsa_switch *ds, int port, 87611d8f3ddSFlorian Fainelli struct phylink_link_state *state); 87711d8f3ddSFlorian Fainelli /* 878c2ec5f2eSOleksij Rempel * Port statistics counters. 879c8f0b869SBen Hutchings */ 88089f09048SFlorian Fainelli void (*get_strings)(struct dsa_switch *ds, int port, 88189f09048SFlorian Fainelli u32 stringset, uint8_t *data); 882c8f0b869SBen Hutchings void (*get_ethtool_stats)(struct dsa_switch *ds, 883c8f0b869SBen Hutchings int port, uint64_t *data); 88489f09048SFlorian Fainelli int (*get_sset_count)(struct dsa_switch *ds, int port, int sset); 885cf963573SFlorian Fainelli void (*get_ethtool_phy_stats)(struct dsa_switch *ds, 886cf963573SFlorian Fainelli int port, uint64_t *data); 887487d3855SAlvin Šipraga void (*get_eth_phy_stats)(struct dsa_switch *ds, int port, 888487d3855SAlvin Šipraga struct ethtool_eth_phy_stats *phy_stats); 889487d3855SAlvin Šipraga void (*get_eth_mac_stats)(struct dsa_switch *ds, int port, 890487d3855SAlvin Šipraga struct ethtool_eth_mac_stats *mac_stats); 891487d3855SAlvin Šipraga void (*get_eth_ctrl_stats)(struct dsa_switch *ds, int port, 892487d3855SAlvin Šipraga struct ethtool_eth_ctrl_stats *ctrl_stats); 89367f38b1cSClément Léger void (*get_rmon_stats)(struct dsa_switch *ds, int port, 89467f38b1cSClément Léger struct ethtool_rmon_stats *rmon_stats, 89567f38b1cSClément Léger const struct ethtool_rmon_hist_range **ranges); 896c2ec5f2eSOleksij Rempel void (*get_stats64)(struct dsa_switch *ds, int port, 897c2ec5f2eSOleksij Rempel struct rtnl_link_stats64 *s); 898a71acad9SOleksij Rempel void (*self_test)(struct dsa_switch *ds, int port, 899a71acad9SOleksij Rempel struct ethtool_test *etest, u64 *data); 90024462549SFlorian Fainelli 90124462549SFlorian Fainelli /* 90219e57c4eSFlorian Fainelli * ethtool Wake-on-LAN 90319e57c4eSFlorian Fainelli */ 90419e57c4eSFlorian Fainelli void (*get_wol)(struct dsa_switch *ds, int port, 90519e57c4eSFlorian Fainelli struct ethtool_wolinfo *w); 90619e57c4eSFlorian Fainelli int (*set_wol)(struct dsa_switch *ds, int port, 90719e57c4eSFlorian Fainelli struct ethtool_wolinfo *w); 90819e57c4eSFlorian Fainelli 90919e57c4eSFlorian Fainelli /* 9100336369dSBrandon Streiff * ethtool timestamp info 9110336369dSBrandon Streiff */ 9120336369dSBrandon Streiff int (*get_ts_info)(struct dsa_switch *ds, int port, 9130336369dSBrandon Streiff struct ethtool_ts_info *ts); 9140336369dSBrandon Streiff 9150336369dSBrandon Streiff /* 916d538eca8SVladimir Oltean * DCB ops 917d538eca8SVladimir Oltean */ 918d538eca8SVladimir Oltean int (*port_get_default_prio)(struct dsa_switch *ds, int port); 919d538eca8SVladimir Oltean int (*port_set_default_prio)(struct dsa_switch *ds, int port, 920d538eca8SVladimir Oltean u8 prio); 92147d75f78SVladimir Oltean int (*port_get_dscp_prio)(struct dsa_switch *ds, int port, u8 dscp); 92247d75f78SVladimir Oltean int (*port_add_dscp_prio)(struct dsa_switch *ds, int port, u8 dscp, 92347d75f78SVladimir Oltean u8 prio); 92447d75f78SVladimir Oltean int (*port_del_dscp_prio)(struct dsa_switch *ds, int port, u8 dscp, 92547d75f78SVladimir Oltean u8 prio); 926d538eca8SVladimir Oltean 927d538eca8SVladimir Oltean /* 92824462549SFlorian Fainelli * Suspend and resume 92924462549SFlorian Fainelli */ 93024462549SFlorian Fainelli int (*suspend)(struct dsa_switch *ds); 93124462549SFlorian Fainelli int (*resume)(struct dsa_switch *ds); 932b2f2af21SFlorian Fainelli 933b2f2af21SFlorian Fainelli /* 934b2f2af21SFlorian Fainelli * Port enable/disable 935b2f2af21SFlorian Fainelli */ 936b2f2af21SFlorian Fainelli int (*port_enable)(struct dsa_switch *ds, int port, 937b2f2af21SFlorian Fainelli struct phy_device *phy); 93875104db0SAndrew Lunn void (*port_disable)(struct dsa_switch *ds, int port); 9397905288fSFlorian Fainelli 9407905288fSFlorian Fainelli /* 94108f50061SVivien Didelot * Port's MAC EEE settings 9427905288fSFlorian Fainelli */ 94308f50061SVivien Didelot int (*set_mac_eee)(struct dsa_switch *ds, int port, 9447905288fSFlorian Fainelli struct ethtool_eee *e); 94508f50061SVivien Didelot int (*get_mac_eee)(struct dsa_switch *ds, int port, 9467905288fSFlorian Fainelli struct ethtool_eee *e); 94751579c3fSGuenter Roeck 9486793abb4SGuenter Roeck /* EEPROM access */ 9496793abb4SGuenter Roeck int (*get_eeprom_len)(struct dsa_switch *ds); 9506793abb4SGuenter Roeck int (*get_eeprom)(struct dsa_switch *ds, 9516793abb4SGuenter Roeck struct ethtool_eeprom *eeprom, u8 *data); 9526793abb4SGuenter Roeck int (*set_eeprom)(struct dsa_switch *ds, 9536793abb4SGuenter Roeck struct ethtool_eeprom *eeprom, u8 *data); 9543d762a0fSGuenter Roeck 9553d762a0fSGuenter Roeck /* 9563d762a0fSGuenter Roeck * Register access. 9573d762a0fSGuenter Roeck */ 9583d762a0fSGuenter Roeck int (*get_regs_len)(struct dsa_switch *ds, int port); 9593d762a0fSGuenter Roeck void (*get_regs)(struct dsa_switch *ds, int port, 9603d762a0fSGuenter Roeck struct ethtool_regs *regs, void *p); 961b73adef6SFlorian Fainelli 962b73adef6SFlorian Fainelli /* 963e358bef7SVladimir Oltean * Upper device tracking. 964e358bef7SVladimir Oltean */ 965e358bef7SVladimir Oltean int (*port_prechangeupper)(struct dsa_switch *ds, int port, 966e358bef7SVladimir Oltean struct netdev_notifier_changeupper_info *info); 967e358bef7SVladimir Oltean 968e358bef7SVladimir Oltean /* 969b73adef6SFlorian Fainelli * Bridge integration 970b73adef6SFlorian Fainelli */ 97134a79f63SVivien Didelot int (*set_ageing_time)(struct dsa_switch *ds, unsigned int msecs); 97271327a4eSVivien Didelot int (*port_bridge_join)(struct dsa_switch *ds, int port, 973b079922bSVladimir Oltean struct dsa_bridge bridge, 97406b9cce4SVladimir Oltean bool *tx_fwd_offload, 97506b9cce4SVladimir Oltean struct netlink_ext_ack *extack); 976f123f2fbSVivien Didelot void (*port_bridge_leave)(struct dsa_switch *ds, int port, 977d3eed0e5SVladimir Oltean struct dsa_bridge bridge); 97843c44a9fSVivien Didelot void (*port_stp_state_set)(struct dsa_switch *ds, int port, 979b73adef6SFlorian Fainelli u8 state); 9807414af30STobias Waldekranz int (*port_mst_state_set)(struct dsa_switch *ds, int port, 9817414af30STobias Waldekranz const struct switchdev_mst_state *state); 982732f794cSVivien Didelot void (*port_fast_age)(struct dsa_switch *ds, int port); 9837414af30STobias Waldekranz int (*port_vlan_fast_age)(struct dsa_switch *ds, int port, u16 vid); 984a8b659e7SVladimir Oltean int (*port_pre_bridge_flags)(struct dsa_switch *ds, int port, 985a8b659e7SVladimir Oltean struct switchdev_brport_flags flags, 986a8b659e7SVladimir Oltean struct netlink_ext_ack *extack); 987a8b659e7SVladimir Oltean int (*port_bridge_flags)(struct dsa_switch *ds, int port, 988a8b659e7SVladimir Oltean struct switchdev_brport_flags flags, 989a8b659e7SVladimir Oltean struct netlink_ext_ack *extack); 99072c3b0c7SVladimir Oltean void (*port_set_host_flood)(struct dsa_switch *ds, int port, 99172c3b0c7SVladimir Oltean bool uc, bool mc); 9922a778e1bSVivien Didelot 9932a778e1bSVivien Didelot /* 99411149536SVivien Didelot * VLAN support 99511149536SVivien Didelot */ 996fb2dabadSVivien Didelot int (*port_vlan_filtering)(struct dsa_switch *ds, int port, 99789153ed6SVladimir Oltean bool vlan_filtering, 99889153ed6SVladimir Oltean struct netlink_ext_ack *extack); 9991958d581SVladimir Oltean int (*port_vlan_add)(struct dsa_switch *ds, int port, 100031046a5fSVladimir Oltean const struct switchdev_obj_port_vlan *vlan, 100131046a5fSVladimir Oltean struct netlink_ext_ack *extack); 100276e398a6SVivien Didelot int (*port_vlan_del)(struct dsa_switch *ds, int port, 100376e398a6SVivien Didelot const struct switchdev_obj_port_vlan *vlan); 10048e6598a7STobias Waldekranz int (*vlan_msti_set)(struct dsa_switch *ds, struct dsa_bridge bridge, 10058e6598a7STobias Waldekranz const struct switchdev_vlan_msti *msti); 10068e6598a7STobias Waldekranz 100711149536SVivien Didelot /* 10082a778e1bSVivien Didelot * Forwarding database 10092a778e1bSVivien Didelot */ 10101b6dd556SArkadi Sharshevsky int (*port_fdb_add)(struct dsa_switch *ds, int port, 1011c2693363SVladimir Oltean const unsigned char *addr, u16 vid, 1012c2693363SVladimir Oltean struct dsa_db db); 10132a778e1bSVivien Didelot int (*port_fdb_del)(struct dsa_switch *ds, int port, 1014c2693363SVladimir Oltean const unsigned char *addr, u16 vid, 1015c2693363SVladimir Oltean struct dsa_db db); 1016ea70ba98SVivien Didelot int (*port_fdb_dump)(struct dsa_switch *ds, int port, 10172bedde1aSArkadi Sharshevsky dsa_fdb_dump_cb_t *cb, void *data); 1018e212fa7cSVladimir Oltean int (*lag_fdb_add)(struct dsa_switch *ds, struct dsa_lag lag, 1019c2693363SVladimir Oltean const unsigned char *addr, u16 vid, 1020c2693363SVladimir Oltean struct dsa_db db); 1021e212fa7cSVladimir Oltean int (*lag_fdb_del)(struct dsa_switch *ds, struct dsa_lag lag, 1022c2693363SVladimir Oltean const unsigned char *addr, u16 vid, 1023c2693363SVladimir Oltean struct dsa_db db); 10248df30255SVivien Didelot 10258df30255SVivien Didelot /* 10268df30255SVivien Didelot * Multicast database 10278df30255SVivien Didelot */ 1028a52b2da7SVladimir Oltean int (*port_mdb_add)(struct dsa_switch *ds, int port, 1029c2693363SVladimir Oltean const struct switchdev_obj_port_mdb *mdb, 1030c2693363SVladimir Oltean struct dsa_db db); 10318df30255SVivien Didelot int (*port_mdb_del)(struct dsa_switch *ds, int port, 1032c2693363SVladimir Oltean const struct switchdev_obj_port_mdb *mdb, 1033c2693363SVladimir Oltean struct dsa_db db); 1034bf9f2648SFlorian Fainelli /* 1035bf9f2648SFlorian Fainelli * RXNFC 1036bf9f2648SFlorian Fainelli */ 1037bf9f2648SFlorian Fainelli int (*get_rxnfc)(struct dsa_switch *ds, int port, 1038bf9f2648SFlorian Fainelli struct ethtool_rxnfc *nfc, u32 *rule_locs); 1039bf9f2648SFlorian Fainelli int (*set_rxnfc)(struct dsa_switch *ds, int port, 1040bf9f2648SFlorian Fainelli struct ethtool_rxnfc *nfc); 1041f50f2127SFlorian Fainelli 1042f50f2127SFlorian Fainelli /* 1043f50f2127SFlorian Fainelli * TC integration 1044f50f2127SFlorian Fainelli */ 1045ed11bb1fSVladimir Oltean int (*cls_flower_add)(struct dsa_switch *ds, int port, 1046ed11bb1fSVladimir Oltean struct flow_cls_offload *cls, bool ingress); 1047ed11bb1fSVladimir Oltean int (*cls_flower_del)(struct dsa_switch *ds, int port, 1048ed11bb1fSVladimir Oltean struct flow_cls_offload *cls, bool ingress); 1049ed11bb1fSVladimir Oltean int (*cls_flower_stats)(struct dsa_switch *ds, int port, 1050ed11bb1fSVladimir Oltean struct flow_cls_offload *cls, bool ingress); 1051f50f2127SFlorian Fainelli int (*port_mirror_add)(struct dsa_switch *ds, int port, 1052f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry *mirror, 10530148bb50SVladimir Oltean bool ingress, struct netlink_ext_ack *extack); 1054f50f2127SFlorian Fainelli void (*port_mirror_del)(struct dsa_switch *ds, int port, 1055f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry *mirror); 105634297176SVladimir Oltean int (*port_policer_add)(struct dsa_switch *ds, int port, 105734297176SVladimir Oltean struct dsa_mall_policer_tc_entry *policer); 105834297176SVladimir Oltean void (*port_policer_del)(struct dsa_switch *ds, int port); 105947d23af2SVladimir Oltean int (*port_setup_tc)(struct dsa_switch *ds, int port, 106047d23af2SVladimir Oltean enum tc_setup_type type, void *type_data); 106140ef2c93SVivien Didelot 106240ef2c93SVivien Didelot /* 106340ef2c93SVivien Didelot * Cross-chip operations 106440ef2c93SVivien Didelot */ 1065f66a6a69SVladimir Oltean int (*crosschip_bridge_join)(struct dsa_switch *ds, int tree_index, 1066f66a6a69SVladimir Oltean int sw_index, int port, 106706b9cce4SVladimir Oltean struct dsa_bridge bridge, 106806b9cce4SVladimir Oltean struct netlink_ext_ack *extack); 1069f66a6a69SVladimir Oltean void (*crosschip_bridge_leave)(struct dsa_switch *ds, int tree_index, 1070f66a6a69SVladimir Oltean int sw_index, int port, 1071d3eed0e5SVladimir Oltean struct dsa_bridge bridge); 1072058102a6STobias Waldekranz int (*crosschip_lag_change)(struct dsa_switch *ds, int sw_index, 1073058102a6STobias Waldekranz int port); 1074058102a6STobias Waldekranz int (*crosschip_lag_join)(struct dsa_switch *ds, int sw_index, 1075dedd6a00SVladimir Oltean int port, struct dsa_lag lag, 1076058102a6STobias Waldekranz struct netdev_lag_upper_info *info); 1077058102a6STobias Waldekranz int (*crosschip_lag_leave)(struct dsa_switch *ds, int sw_index, 1078dedd6a00SVladimir Oltean int port, struct dsa_lag lag); 10790336369dSBrandon Streiff 10800336369dSBrandon Streiff /* 10810336369dSBrandon Streiff * PTP functionality 10820336369dSBrandon Streiff */ 10830336369dSBrandon Streiff int (*port_hwtstamp_get)(struct dsa_switch *ds, int port, 10840336369dSBrandon Streiff struct ifreq *ifr); 10850336369dSBrandon Streiff int (*port_hwtstamp_set)(struct dsa_switch *ds, int port, 10860336369dSBrandon Streiff struct ifreq *ifr); 10875c5416f5SYangbo Lu void (*port_txtstamp)(struct dsa_switch *ds, int port, 10885c5416f5SYangbo Lu struct sk_buff *skb); 108990af1059SBrandon Streiff bool (*port_rxtstamp)(struct dsa_switch *ds, int port, 109090af1059SBrandon Streiff struct sk_buff *skb, unsigned int type); 109197a69a0dSVladimir Oltean 10920f06b855SAndrew Lunn /* Devlink parameters, etc */ 10936b297524SAndrew Lunn int (*devlink_param_get)(struct dsa_switch *ds, u32 id, 10946b297524SAndrew Lunn struct devlink_param_gset_ctx *ctx); 10956b297524SAndrew Lunn int (*devlink_param_set)(struct dsa_switch *ds, u32 id, 10966b297524SAndrew Lunn struct devlink_param_gset_ctx *ctx); 10970f06b855SAndrew Lunn int (*devlink_info_get)(struct dsa_switch *ds, 10980f06b855SAndrew Lunn struct devlink_info_req *req, 10990f06b855SAndrew Lunn struct netlink_ext_ack *extack); 11002a6ef763SVladimir Oltean int (*devlink_sb_pool_get)(struct dsa_switch *ds, 11012a6ef763SVladimir Oltean unsigned int sb_index, u16 pool_index, 11022a6ef763SVladimir Oltean struct devlink_sb_pool_info *pool_info); 11032a6ef763SVladimir Oltean int (*devlink_sb_pool_set)(struct dsa_switch *ds, unsigned int sb_index, 11042a6ef763SVladimir Oltean u16 pool_index, u32 size, 11052a6ef763SVladimir Oltean enum devlink_sb_threshold_type threshold_type, 11062a6ef763SVladimir Oltean struct netlink_ext_ack *extack); 11072a6ef763SVladimir Oltean int (*devlink_sb_port_pool_get)(struct dsa_switch *ds, int port, 11082a6ef763SVladimir Oltean unsigned int sb_index, u16 pool_index, 11092a6ef763SVladimir Oltean u32 *p_threshold); 11102a6ef763SVladimir Oltean int (*devlink_sb_port_pool_set)(struct dsa_switch *ds, int port, 11112a6ef763SVladimir Oltean unsigned int sb_index, u16 pool_index, 11122a6ef763SVladimir Oltean u32 threshold, 11132a6ef763SVladimir Oltean struct netlink_ext_ack *extack); 11142a6ef763SVladimir Oltean int (*devlink_sb_tc_pool_bind_get)(struct dsa_switch *ds, int port, 11152a6ef763SVladimir Oltean unsigned int sb_index, u16 tc_index, 11162a6ef763SVladimir Oltean enum devlink_sb_pool_type pool_type, 11172a6ef763SVladimir Oltean u16 *p_pool_index, u32 *p_threshold); 11182a6ef763SVladimir Oltean int (*devlink_sb_tc_pool_bind_set)(struct dsa_switch *ds, int port, 11192a6ef763SVladimir Oltean unsigned int sb_index, u16 tc_index, 11202a6ef763SVladimir Oltean enum devlink_sb_pool_type pool_type, 11212a6ef763SVladimir Oltean u16 pool_index, u32 threshold, 11222a6ef763SVladimir Oltean struct netlink_ext_ack *extack); 11232a6ef763SVladimir Oltean int (*devlink_sb_occ_snapshot)(struct dsa_switch *ds, 11242a6ef763SVladimir Oltean unsigned int sb_index); 11252a6ef763SVladimir Oltean int (*devlink_sb_occ_max_clear)(struct dsa_switch *ds, 11262a6ef763SVladimir Oltean unsigned int sb_index); 11272a6ef763SVladimir Oltean int (*devlink_sb_occ_port_pool_get)(struct dsa_switch *ds, int port, 11282a6ef763SVladimir Oltean unsigned int sb_index, u16 pool_index, 11292a6ef763SVladimir Oltean u32 *p_cur, u32 *p_max); 11302a6ef763SVladimir Oltean int (*devlink_sb_occ_tc_port_bind_get)(struct dsa_switch *ds, int port, 11312a6ef763SVladimir Oltean unsigned int sb_index, u16 tc_index, 11322a6ef763SVladimir Oltean enum devlink_sb_pool_type pool_type, 11332a6ef763SVladimir Oltean u32 *p_cur, u32 *p_max); 1134bfcb8132SVladimir Oltean 1135bfcb8132SVladimir Oltean /* 1136bfcb8132SVladimir Oltean * MTU change functionality. Switches can also adjust their MRU through 1137bfcb8132SVladimir Oltean * this method. By MTU, one understands the SDU (L2 payload) length. 1138bfcb8132SVladimir Oltean * If the switch needs to account for the DSA tag on the CPU port, this 1139ab88d64aSRandy Dunlap * method needs to do so privately. 1140bfcb8132SVladimir Oltean */ 1141bfcb8132SVladimir Oltean int (*port_change_mtu)(struct dsa_switch *ds, int port, 1142bfcb8132SVladimir Oltean int new_mtu); 1143bfcb8132SVladimir Oltean int (*port_max_mtu)(struct dsa_switch *ds, int port); 1144058102a6STobias Waldekranz 1145058102a6STobias Waldekranz /* 1146058102a6STobias Waldekranz * LAG integration 1147058102a6STobias Waldekranz */ 1148058102a6STobias Waldekranz int (*port_lag_change)(struct dsa_switch *ds, int port); 1149058102a6STobias Waldekranz int (*port_lag_join)(struct dsa_switch *ds, int port, 1150dedd6a00SVladimir Oltean struct dsa_lag lag, 1151058102a6STobias Waldekranz struct netdev_lag_upper_info *info); 1152058102a6STobias Waldekranz int (*port_lag_leave)(struct dsa_switch *ds, int port, 1153dedd6a00SVladimir Oltean struct dsa_lag lag); 115418596f50SGeorge McCollister 115518596f50SGeorge McCollister /* 115618596f50SGeorge McCollister * HSR integration 115718596f50SGeorge McCollister */ 115818596f50SGeorge McCollister int (*port_hsr_join)(struct dsa_switch *ds, int port, 115918596f50SGeorge McCollister struct net_device *hsr); 116018596f50SGeorge McCollister int (*port_hsr_leave)(struct dsa_switch *ds, int port, 116118596f50SGeorge McCollister struct net_device *hsr); 1162c595c433SHoratiu Vultur 1163c595c433SHoratiu Vultur /* 1164c595c433SHoratiu Vultur * MRP integration 1165c595c433SHoratiu Vultur */ 1166c595c433SHoratiu Vultur int (*port_mrp_add)(struct dsa_switch *ds, int port, 1167c595c433SHoratiu Vultur const struct switchdev_obj_mrp *mrp); 1168c595c433SHoratiu Vultur int (*port_mrp_del)(struct dsa_switch *ds, int port, 1169c595c433SHoratiu Vultur const struct switchdev_obj_mrp *mrp); 1170c595c433SHoratiu Vultur int (*port_mrp_add_ring_role)(struct dsa_switch *ds, int port, 1171c595c433SHoratiu Vultur const struct switchdev_obj_ring_role_mrp *mrp); 1172c595c433SHoratiu Vultur int (*port_mrp_del_ring_role)(struct dsa_switch *ds, int port, 1173c595c433SHoratiu Vultur const struct switchdev_obj_ring_role_mrp *mrp); 11745da11eb4SVladimir Oltean 11755da11eb4SVladimir Oltean /* 11765da11eb4SVladimir Oltean * tag_8021q operations 11775da11eb4SVladimir Oltean */ 11785da11eb4SVladimir Oltean int (*tag_8021q_vlan_add)(struct dsa_switch *ds, int port, u16 vid, 11795da11eb4SVladimir Oltean u16 flags); 11805da11eb4SVladimir Oltean int (*tag_8021q_vlan_del)(struct dsa_switch *ds, int port, u16 vid); 1181295ab96fSVladimir Oltean 1182295ab96fSVladimir Oltean /* 1183295ab96fSVladimir Oltean * DSA master tracking operations 1184295ab96fSVladimir Oltean */ 1185295ab96fSVladimir Oltean void (*master_state_change)(struct dsa_switch *ds, 1186295ab96fSVladimir Oltean const struct net_device *master, 1187295ab96fSVladimir Oltean bool operational); 11886b297524SAndrew Lunn }; 11896b297524SAndrew Lunn 11906b297524SAndrew Lunn #define DSA_DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes) \ 11916b297524SAndrew Lunn DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, \ 11926b297524SAndrew Lunn dsa_devlink_param_get, dsa_devlink_param_set, NULL) 11936b297524SAndrew Lunn 11946b297524SAndrew Lunn int dsa_devlink_param_get(struct devlink *dl, u32 id, 11956b297524SAndrew Lunn struct devlink_param_gset_ctx *ctx); 11966b297524SAndrew Lunn int dsa_devlink_param_set(struct devlink *dl, u32 id, 11976b297524SAndrew Lunn struct devlink_param_gset_ctx *ctx); 11986b297524SAndrew Lunn int dsa_devlink_params_register(struct dsa_switch *ds, 11996b297524SAndrew Lunn const struct devlink_param *params, 12006b297524SAndrew Lunn size_t params_count); 12016b297524SAndrew Lunn void dsa_devlink_params_unregister(struct dsa_switch *ds, 12026b297524SAndrew Lunn const struct devlink_param *params, 12036b297524SAndrew Lunn size_t params_count); 12045cd73fbdSAndrew Lunn int dsa_devlink_resource_register(struct dsa_switch *ds, 12055cd73fbdSAndrew Lunn const char *resource_name, 12065cd73fbdSAndrew Lunn u64 resource_size, 12075cd73fbdSAndrew Lunn u64 resource_id, 12085cd73fbdSAndrew Lunn u64 parent_resource_id, 12095cd73fbdSAndrew Lunn const struct devlink_resource_size_params *size_params); 12105cd73fbdSAndrew Lunn 12115cd73fbdSAndrew Lunn void dsa_devlink_resources_unregister(struct dsa_switch *ds); 12125cd73fbdSAndrew Lunn 12135cd73fbdSAndrew Lunn void dsa_devlink_resource_occ_get_register(struct dsa_switch *ds, 12145cd73fbdSAndrew Lunn u64 resource_id, 12155cd73fbdSAndrew Lunn devlink_resource_occ_get_t *occ_get, 12165cd73fbdSAndrew Lunn void *occ_get_priv); 12175cd73fbdSAndrew Lunn void dsa_devlink_resource_occ_get_unregister(struct dsa_switch *ds, 12185cd73fbdSAndrew Lunn u64 resource_id); 121997c82c23SAndrew Lunn struct devlink_region * 122097c82c23SAndrew Lunn dsa_devlink_region_create(struct dsa_switch *ds, 122197c82c23SAndrew Lunn const struct devlink_region_ops *ops, 122297c82c23SAndrew Lunn u32 region_max_snapshots, u64 region_size); 122308156ba4SAndrew Lunn struct devlink_region * 122408156ba4SAndrew Lunn dsa_devlink_port_region_create(struct dsa_switch *ds, 122508156ba4SAndrew Lunn int port, 122608156ba4SAndrew Lunn const struct devlink_port_region_ops *ops, 122708156ba4SAndrew Lunn u32 region_max_snapshots, u64 region_size); 122897c82c23SAndrew Lunn void dsa_devlink_region_destroy(struct devlink_region *region); 122997c82c23SAndrew Lunn 1230e1eea811SVladimir Oltean struct dsa_port *dsa_port_from_netdev(struct net_device *netdev); 12315cd73fbdSAndrew Lunn 12326b297524SAndrew Lunn struct dsa_devlink_priv { 12336b297524SAndrew Lunn struct dsa_switch *ds; 1234c8f0b869SBen Hutchings }; 1235c8f0b869SBen Hutchings 1236ccc3e6b0SAndrew Lunn static inline struct dsa_switch *dsa_devlink_to_ds(struct devlink *dl) 1237ccc3e6b0SAndrew Lunn { 1238ccc3e6b0SAndrew Lunn struct dsa_devlink_priv *dl_priv = devlink_priv(dl); 1239ccc3e6b0SAndrew Lunn 1240ccc3e6b0SAndrew Lunn return dl_priv->ds; 1241ccc3e6b0SAndrew Lunn } 1242ccc3e6b0SAndrew Lunn 12437d1e2a10SAndrew Lunn static inline 12447d1e2a10SAndrew Lunn struct dsa_switch *dsa_devlink_port_to_ds(struct devlink_port *port) 12457d1e2a10SAndrew Lunn { 12467d1e2a10SAndrew Lunn struct devlink *dl = port->devlink; 12477d1e2a10SAndrew Lunn struct dsa_devlink_priv *dl_priv = devlink_priv(dl); 12487d1e2a10SAndrew Lunn 12497d1e2a10SAndrew Lunn return dl_priv->ds; 12507d1e2a10SAndrew Lunn } 12517d1e2a10SAndrew Lunn 12527d1e2a10SAndrew Lunn static inline int dsa_devlink_port_to_port(struct devlink_port *port) 12537d1e2a10SAndrew Lunn { 12547d1e2a10SAndrew Lunn return port->index; 12557d1e2a10SAndrew Lunn } 12567d1e2a10SAndrew Lunn 1257ab3d408dSFlorian Fainelli struct dsa_switch_driver { 1258ab3d408dSFlorian Fainelli struct list_head list; 1259a82f67afSFlorian Fainelli const struct dsa_switch_ops *ops; 1260ab3d408dSFlorian Fainelli }; 1261ab3d408dSFlorian Fainelli 126214b89f36SFlorian Fainelli struct net_device *dsa_dev_to_net_device(struct device *dev); 1263c8f0b869SBen Hutchings 12647e580490SVladimir Oltean bool dsa_fdb_present_in_other_db(struct dsa_switch *ds, int port, 12657e580490SVladimir Oltean const unsigned char *addr, u16 vid, 12667e580490SVladimir Oltean struct dsa_db db); 12677e580490SVladimir Oltean bool dsa_mdb_present_in_other_db(struct dsa_switch *ds, int port, 12687e580490SVladimir Oltean const struct switchdev_obj_port_mdb *mdb, 12697e580490SVladimir Oltean struct dsa_db db); 1270f9cef64fSVladimir Oltean 127173a7ece8SVivien Didelot /* Keep inline for faster access in hot path */ 12729eb8eff0SVladimir Oltean static inline bool netdev_uses_dsa(const struct net_device *dev) 1273c6e970a0SAndrew Lunn { 1274c6e970a0SAndrew Lunn #if IS_ENABLED(CONFIG_NET_DSA) 1275717ffbfbSVivien Didelot return dev->dsa_ptr && dev->dsa_ptr->rcv; 1276c6e970a0SAndrew Lunn #endif 1277c6e970a0SAndrew Lunn return false; 1278c6e970a0SAndrew Lunn } 1279c6e970a0SAndrew Lunn 12809790cf20SVladimir Oltean /* All DSA tags that push the EtherType to the right (basically all except tail 12819790cf20SVladimir Oltean * tags, which don't break dissection) can be treated the same from the 12829790cf20SVladimir Oltean * perspective of the flow dissector. 12839790cf20SVladimir Oltean * 12849790cf20SVladimir Oltean * We need to return: 12859790cf20SVladimir Oltean * - offset: the (B - A) difference between: 12869790cf20SVladimir Oltean * A. the position of the real EtherType and 12879790cf20SVladimir Oltean * B. the current skb->data (aka ETH_HLEN bytes into the frame, aka 2 bytes 12889790cf20SVladimir Oltean * after the normal EtherType was supposed to be) 12899790cf20SVladimir Oltean * The offset in bytes is exactly equal to the tagger overhead (and half of 12909790cf20SVladimir Oltean * that, in __be16 shorts). 12919790cf20SVladimir Oltean * 12929790cf20SVladimir Oltean * - proto: the value of the real EtherType. 12939790cf20SVladimir Oltean */ 12949790cf20SVladimir Oltean static inline void dsa_tag_generic_flow_dissect(const struct sk_buff *skb, 12959790cf20SVladimir Oltean __be16 *proto, int *offset) 12969790cf20SVladimir Oltean { 12979790cf20SVladimir Oltean #if IS_ENABLED(CONFIG_NET_DSA) 12989790cf20SVladimir Oltean const struct dsa_device_ops *ops = skb->dev->dsa_ptr->tag_ops; 12994e500251SVladimir Oltean int tag_len = ops->needed_headroom; 13009790cf20SVladimir Oltean 13019790cf20SVladimir Oltean *offset = tag_len; 13029790cf20SVladimir Oltean *proto = ((__be16 *)skb->data)[(tag_len / 2) - 1]; 13039790cf20SVladimir Oltean #endif 13049790cf20SVladimir Oltean } 13059790cf20SVladimir Oltean 13064cfab356SFlorian Fainelli #if IS_ENABLED(CONFIG_NET_DSA) 13074cfab356SFlorian Fainelli static inline int __dsa_netdevice_ops_check(struct net_device *dev) 13084cfab356SFlorian Fainelli { 13094cfab356SFlorian Fainelli int err = -EOPNOTSUPP; 13104cfab356SFlorian Fainelli 13114cfab356SFlorian Fainelli if (!dev->dsa_ptr) 13124cfab356SFlorian Fainelli return err; 13134cfab356SFlorian Fainelli 13144cfab356SFlorian Fainelli if (!dev->dsa_ptr->netdev_ops) 13154cfab356SFlorian Fainelli return err; 13164cfab356SFlorian Fainelli 13174cfab356SFlorian Fainelli return 0; 13184cfab356SFlorian Fainelli } 13194cfab356SFlorian Fainelli 1320a7605370SArnd Bergmann static inline int dsa_ndo_eth_ioctl(struct net_device *dev, struct ifreq *ifr, 13214cfab356SFlorian Fainelli int cmd) 13224cfab356SFlorian Fainelli { 13234cfab356SFlorian Fainelli const struct dsa_netdevice_ops *ops; 13244cfab356SFlorian Fainelli int err; 13254cfab356SFlorian Fainelli 13264cfab356SFlorian Fainelli err = __dsa_netdevice_ops_check(dev); 13274cfab356SFlorian Fainelli if (err) 13284cfab356SFlorian Fainelli return err; 13294cfab356SFlorian Fainelli 13304cfab356SFlorian Fainelli ops = dev->dsa_ptr->netdev_ops; 13314cfab356SFlorian Fainelli 1332a7605370SArnd Bergmann return ops->ndo_eth_ioctl(dev, ifr, cmd); 13334cfab356SFlorian Fainelli } 13344cfab356SFlorian Fainelli #else 1335a7605370SArnd Bergmann static inline int dsa_ndo_eth_ioctl(struct net_device *dev, struct ifreq *ifr, 13364cfab356SFlorian Fainelli int cmd) 13374cfab356SFlorian Fainelli { 13384cfab356SFlorian Fainelli return -EOPNOTSUPP; 13394cfab356SFlorian Fainelli } 13404cfab356SFlorian Fainelli #endif 13414cfab356SFlorian Fainelli 134283c0afaeSAndrew Lunn void dsa_unregister_switch(struct dsa_switch *ds); 134323c9ee49SVivien Didelot int dsa_register_switch(struct dsa_switch *ds); 13440650bf52SVladimir Oltean void dsa_switch_shutdown(struct dsa_switch *ds); 13453b7bc1f0SVladimir Oltean struct dsa_switch *dsa_switch_find(int tree_index, int sw_index); 1346a2614140SVladimir Oltean void dsa_flush_workqueue(void); 1347ea825e70SFlorian Fainelli #ifdef CONFIG_PM_SLEEP 1348ea825e70SFlorian Fainelli int dsa_switch_suspend(struct dsa_switch *ds); 1349ea825e70SFlorian Fainelli int dsa_switch_resume(struct dsa_switch *ds); 1350ea825e70SFlorian Fainelli #else 1351ea825e70SFlorian Fainelli static inline int dsa_switch_suspend(struct dsa_switch *ds) 1352ea825e70SFlorian Fainelli { 1353ea825e70SFlorian Fainelli return 0; 1354ea825e70SFlorian Fainelli } 1355ea825e70SFlorian Fainelli static inline int dsa_switch_resume(struct dsa_switch *ds) 1356ea825e70SFlorian Fainelli { 1357ea825e70SFlorian Fainelli return 0; 1358ea825e70SFlorian Fainelli } 1359ea825e70SFlorian Fainelli #endif /* CONFIG_PM_SLEEP */ 1360ea825e70SFlorian Fainelli 136160724d4bSFlorian Fainelli #if IS_ENABLED(CONFIG_NET_DSA) 1362a5e3c9baSVladimir Oltean bool dsa_slave_dev_check(const struct net_device *dev); 136360724d4bSFlorian Fainelli #else 1364a5e3c9baSVladimir Oltean static inline bool dsa_slave_dev_check(const struct net_device *dev) 1365a5e3c9baSVladimir Oltean { 1366a5e3c9baSVladimir Oltean return false; 1367a5e3c9baSVladimir Oltean } 136860724d4bSFlorian Fainelli #endif 136960724d4bSFlorian Fainelli 137097a69a0dSVladimir Oltean netdev_tx_t dsa_enqueue_skb(struct sk_buff *skb, struct net_device *dev); 137111d8f3ddSFlorian Fainelli void dsa_port_phylink_mac_change(struct dsa_switch *ds, int port, bool up); 1372cf963573SFlorian Fainelli 1373d3b8c049SAndrew Lunn struct dsa_tag_driver { 1374d3b8c049SAndrew Lunn const struct dsa_device_ops *ops; 1375d3b8c049SAndrew Lunn struct list_head list; 1376d3b8c049SAndrew Lunn struct module *owner; 1377d3b8c049SAndrew Lunn }; 1378d3b8c049SAndrew Lunn 1379d3b8c049SAndrew Lunn void dsa_tag_drivers_register(struct dsa_tag_driver *dsa_tag_driver_array[], 1380d3b8c049SAndrew Lunn unsigned int count, 1381d3b8c049SAndrew Lunn struct module *owner); 1382d3b8c049SAndrew Lunn void dsa_tag_drivers_unregister(struct dsa_tag_driver *dsa_tag_driver_array[], 1383d3b8c049SAndrew Lunn unsigned int count); 1384d3b8c049SAndrew Lunn 1385d3b8c049SAndrew Lunn #define dsa_tag_driver_module_drivers(__dsa_tag_drivers_array, __count) \ 1386d3b8c049SAndrew Lunn static int __init dsa_tag_driver_module_init(void) \ 1387d3b8c049SAndrew Lunn { \ 1388d3b8c049SAndrew Lunn dsa_tag_drivers_register(__dsa_tag_drivers_array, __count, \ 1389d3b8c049SAndrew Lunn THIS_MODULE); \ 1390d3b8c049SAndrew Lunn return 0; \ 1391d3b8c049SAndrew Lunn } \ 1392d3b8c049SAndrew Lunn module_init(dsa_tag_driver_module_init); \ 1393d3b8c049SAndrew Lunn \ 1394d3b8c049SAndrew Lunn static void __exit dsa_tag_driver_module_exit(void) \ 1395d3b8c049SAndrew Lunn { \ 1396d3b8c049SAndrew Lunn dsa_tag_drivers_unregister(__dsa_tag_drivers_array, __count); \ 1397d3b8c049SAndrew Lunn } \ 1398d3b8c049SAndrew Lunn module_exit(dsa_tag_driver_module_exit) 1399d3b8c049SAndrew Lunn 1400d3b8c049SAndrew Lunn /** 1401d3b8c049SAndrew Lunn * module_dsa_tag_drivers() - Helper macro for registering DSA tag 1402d3b8c049SAndrew Lunn * drivers 1403c7d9a675SLuiz Angelo Daros de Luca * @__ops_array: Array of tag driver structures 1404d3b8c049SAndrew Lunn * 1405d3b8c049SAndrew Lunn * Helper macro for DSA tag drivers which do not do anything special 1406d3b8c049SAndrew Lunn * in module init/exit. Each module may only use this macro once, and 1407d3b8c049SAndrew Lunn * calling it replaces module_init() and module_exit(). 1408d3b8c049SAndrew Lunn */ 1409d3b8c049SAndrew Lunn #define module_dsa_tag_drivers(__ops_array) \ 1410d3b8c049SAndrew Lunn dsa_tag_driver_module_drivers(__ops_array, ARRAY_SIZE(__ops_array)) 1411d3b8c049SAndrew Lunn 1412d3b8c049SAndrew Lunn #define DSA_TAG_DRIVER_NAME(__ops) dsa_tag_driver ## _ ## __ops 1413d3b8c049SAndrew Lunn 1414d3b8c049SAndrew Lunn /* Create a static structure we can build a linked list of dsa_tag 1415d3b8c049SAndrew Lunn * drivers 1416d3b8c049SAndrew Lunn */ 1417d3b8c049SAndrew Lunn #define DSA_TAG_DRIVER(__ops) \ 1418d3b8c049SAndrew Lunn static struct dsa_tag_driver DSA_TAG_DRIVER_NAME(__ops) = { \ 1419d3b8c049SAndrew Lunn .ops = &__ops, \ 1420d3b8c049SAndrew Lunn } 1421d3b8c049SAndrew Lunn 1422d3b8c049SAndrew Lunn /** 1423d3b8c049SAndrew Lunn * module_dsa_tag_driver() - Helper macro for registering a single DSA tag 1424d3b8c049SAndrew Lunn * driver 1425d3b8c049SAndrew Lunn * @__ops: Single tag driver structures 1426d3b8c049SAndrew Lunn * 1427d3b8c049SAndrew Lunn * Helper macro for DSA tag drivers which do not do anything special 1428d3b8c049SAndrew Lunn * in module init/exit. Each module may only use this macro once, and 1429d3b8c049SAndrew Lunn * calling it replaces module_init() and module_exit(). 1430d3b8c049SAndrew Lunn */ 1431d3b8c049SAndrew Lunn #define module_dsa_tag_driver(__ops) \ 1432d3b8c049SAndrew Lunn DSA_TAG_DRIVER(__ops); \ 1433d3b8c049SAndrew Lunn \ 1434d3b8c049SAndrew Lunn static struct dsa_tag_driver *dsa_tag_driver_array[] = { \ 1435d3b8c049SAndrew Lunn &DSA_TAG_DRIVER_NAME(__ops) \ 1436d3b8c049SAndrew Lunn }; \ 1437d3b8c049SAndrew Lunn module_dsa_tag_drivers(dsa_tag_driver_array) 143891da11f8SLennert Buytenhek #endif 1439d3b8c049SAndrew Lunn 1440