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 530b42f033SAndrew Lunn 54ac7a04c3SFlorian Fainelli enum dsa_tag_protocol { 550b42f033SAndrew Lunn DSA_TAG_PROTO_NONE = DSA_TAG_PROTO_NONE_VALUE, 560b42f033SAndrew Lunn DSA_TAG_PROTO_BRCM = DSA_TAG_PROTO_BRCM_VALUE, 57964dbf18SÁlvaro Fernández Rojas DSA_TAG_PROTO_BRCM_LEGACY = DSA_TAG_PROTO_BRCM_LEGACY_VALUE, 580b42f033SAndrew Lunn DSA_TAG_PROTO_BRCM_PREPEND = DSA_TAG_PROTO_BRCM_PREPEND_VALUE, 590b42f033SAndrew Lunn DSA_TAG_PROTO_DSA = DSA_TAG_PROTO_DSA_VALUE, 600b42f033SAndrew Lunn DSA_TAG_PROTO_EDSA = DSA_TAG_PROTO_EDSA_VALUE, 610b42f033SAndrew Lunn DSA_TAG_PROTO_GSWIP = DSA_TAG_PROTO_GSWIP_VALUE, 620b42f033SAndrew Lunn DSA_TAG_PROTO_KSZ9477 = DSA_TAG_PROTO_KSZ9477_VALUE, 630b42f033SAndrew Lunn DSA_TAG_PROTO_KSZ9893 = DSA_TAG_PROTO_KSZ9893_VALUE, 640b42f033SAndrew Lunn DSA_TAG_PROTO_LAN9303 = DSA_TAG_PROTO_LAN9303_VALUE, 650b42f033SAndrew Lunn DSA_TAG_PROTO_MTK = DSA_TAG_PROTO_MTK_VALUE, 660b42f033SAndrew Lunn DSA_TAG_PROTO_QCA = DSA_TAG_PROTO_QCA_VALUE, 670b42f033SAndrew Lunn DSA_TAG_PROTO_TRAILER = DSA_TAG_PROTO_TRAILER_VALUE, 68f9bbe447SVladimir Oltean DSA_TAG_PROTO_8021Q = DSA_TAG_PROTO_8021Q_VALUE, 69227d07a0SVladimir Oltean DSA_TAG_PROTO_SJA1105 = DSA_TAG_PROTO_SJA1105_VALUE, 70016e43a2STristram Ha DSA_TAG_PROTO_KSZ8795 = DSA_TAG_PROTO_KSZ8795_VALUE, 718dce89aaSVladimir Oltean DSA_TAG_PROTO_OCELOT = DSA_TAG_PROTO_OCELOT_VALUE, 7248fda74fSOleksij Rempel DSA_TAG_PROTO_AR9331 = DSA_TAG_PROTO_AR9331_VALUE, 73efd7fe68SLinus Walleij DSA_TAG_PROTO_RTL4_A = DSA_TAG_PROTO_RTL4_A_VALUE, 7401ef09caSKurt Kanzenbach DSA_TAG_PROTO_HELLCREEK = DSA_TAG_PROTO_HELLCREEK_VALUE, 7554a52823SGeorge McCollister DSA_TAG_PROTO_XRS700X = DSA_TAG_PROTO_XRS700X_VALUE, 767c83a7c5SVladimir Oltean DSA_TAG_PROTO_OCELOT_8021Q = DSA_TAG_PROTO_OCELOT_8021Q_VALUE, 777c4bb540SVladimir Oltean DSA_TAG_PROTO_SEVILLE = DSA_TAG_PROTO_SEVILLE_VALUE, 78ac7a04c3SFlorian Fainelli }; 795037d532SFlorian Fainelli 805075314eSAlexander Duyck struct packet_type; 8190af1059SBrandon Streiff struct dsa_switch; 823e8a72d1SFlorian Fainelli 8368277a2cSJohn Crispin struct dsa_device_ops { 8468277a2cSJohn Crispin struct sk_buff *(*xmit)(struct sk_buff *skb, struct net_device *dev); 8568277a2cSJohn Crispin struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev, 8689e49506SFlorian Westphal struct packet_type *pt); 872e8cb1b3SVladimir Oltean void (*flow_dissect)(const struct sk_buff *skb, __be16 *proto, 88598a9680SJohn Crispin int *offset); 89cc1939e4SVladimir Oltean /* Used to determine which traffic should match the DSA filter in 90cc1939e4SVladimir Oltean * eth_type_trans, and which, if any, should bypass it and be processed 91cc1939e4SVladimir Oltean * as regular on the master net device. 92cc1939e4SVladimir Oltean */ 93cc1939e4SVladimir Oltean bool (*filter)(const struct sk_buff *skb, struct net_device *dev); 94a5dd3087SAndrew Lunn unsigned int overhead; 95875138f8SAndrew Lunn const char *name; 96056eed2fSAndrew Lunn enum dsa_tag_protocol proto; 97c3975400SVladimir Oltean /* Some tagging protocols either mangle or shift the destination MAC 98c3975400SVladimir Oltean * address, in which case the DSA master would drop packets on ingress 99c3975400SVladimir Oltean * if what it understands out of the destination MAC address is not in 100c3975400SVladimir Oltean * its RX filter. 101c3975400SVladimir Oltean */ 102c3975400SVladimir Oltean bool promisc_on_master; 1037a6ffe76SVladimir Oltean bool tail_tag; 10468277a2cSJohn Crispin }; 10568277a2cSJohn Crispin 1064cfab356SFlorian Fainelli /* This structure defines the control interfaces that are overlayed by the 1074cfab356SFlorian Fainelli * DSA layer on top of the DSA CPU/management net_device instance. This is 1084cfab356SFlorian Fainelli * used by the core net_device layer while calling various net_device_ops 1094cfab356SFlorian Fainelli * function pointers. 1104cfab356SFlorian Fainelli */ 1114cfab356SFlorian Fainelli struct dsa_netdevice_ops { 1124cfab356SFlorian Fainelli int (*ndo_do_ioctl)(struct net_device *dev, struct ifreq *ifr, 1134cfab356SFlorian Fainelli int cmd); 1144cfab356SFlorian Fainelli }; 1154cfab356SFlorian Fainelli 1160b42f033SAndrew Lunn #define DSA_TAG_DRIVER_ALIAS "dsa_tag-" 1170b42f033SAndrew Lunn #define MODULE_ALIAS_DSA_TAG_DRIVER(__proto) \ 1180b42f033SAndrew Lunn MODULE_ALIAS(DSA_TAG_DRIVER_ALIAS __stringify(__proto##_VALUE)) 1190b42f033SAndrew Lunn 120b68b0dd0SVladimir Oltean struct dsa_skb_cb { 121b68b0dd0SVladimir Oltean struct sk_buff *clone; 122b68b0dd0SVladimir Oltean }; 123b68b0dd0SVladimir Oltean 124b68b0dd0SVladimir Oltean struct __dsa_skb_cb { 125b68b0dd0SVladimir Oltean struct dsa_skb_cb cb; 126b68b0dd0SVladimir Oltean u8 priv[48 - sizeof(struct dsa_skb_cb)]; 127b68b0dd0SVladimir Oltean }; 128b68b0dd0SVladimir Oltean 129b68b0dd0SVladimir Oltean #define DSA_SKB_CB(skb) ((struct dsa_skb_cb *)((skb)->cb)) 130b68b0dd0SVladimir Oltean 131b68b0dd0SVladimir Oltean #define DSA_SKB_CB_PRIV(skb) \ 132b68b0dd0SVladimir Oltean ((void *)(skb)->cb + offsetof(struct __dsa_skb_cb, priv)) 133b68b0dd0SVladimir Oltean 134cf50dcc2SBen Hutchings struct dsa_switch_tree { 13583c0afaeSAndrew Lunn struct list_head list; 13683c0afaeSAndrew Lunn 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 14683c0afaeSAndrew Lunn /* Has this tree been applied to the hardware? */ 147ec15dd42SVivien Didelot bool setup; 14883c0afaeSAndrew Lunn 149357f203bSVladimir Oltean /* Tagging protocol operations */ 150357f203bSVladimir Oltean const struct dsa_device_ops *tag_ops; 151357f203bSVladimir Oltean 152cf50dcc2SBen Hutchings /* 153cf50dcc2SBen Hutchings * Configuration data for the platform device that owns 154cf50dcc2SBen Hutchings * this dsa switch tree instance. 155cf50dcc2SBen Hutchings */ 156cf50dcc2SBen Hutchings struct dsa_platform_data *pd; 157cf85d08fSLennert Buytenhek 158ab8ccae1SVivien Didelot /* List of switch ports */ 159ab8ccae1SVivien Didelot struct list_head ports; 160ab8ccae1SVivien Didelot 161c5f51765SVivien Didelot /* List of DSA links composing the routing table */ 162c5f51765SVivien Didelot struct list_head rtable; 163058102a6STobias Waldekranz 164058102a6STobias Waldekranz /* Maps offloaded LAG netdevs to a zero-based linear ID for 165058102a6STobias Waldekranz * drivers that need it. 166058102a6STobias Waldekranz */ 167058102a6STobias Waldekranz struct net_device **lags; 168058102a6STobias Waldekranz unsigned int lags_len; 169cf50dcc2SBen Hutchings }; 170cf50dcc2SBen Hutchings 171058102a6STobias Waldekranz #define dsa_lags_foreach_id(_id, _dst) \ 172058102a6STobias Waldekranz for ((_id) = 0; (_id) < (_dst)->lags_len; (_id)++) \ 173058102a6STobias Waldekranz if ((_dst)->lags[(_id)]) 174058102a6STobias Waldekranz 175058102a6STobias Waldekranz #define dsa_lag_foreach_port(_dp, _dst, _lag) \ 176058102a6STobias Waldekranz list_for_each_entry((_dp), &(_dst)->ports, list) \ 177058102a6STobias Waldekranz if ((_dp)->lag_dev == (_lag)) 178058102a6STobias Waldekranz 17918596f50SGeorge McCollister #define dsa_hsr_foreach_port(_dp, _ds, _hsr) \ 18018596f50SGeorge McCollister list_for_each_entry((_dp), &(_ds)->dst->ports, list) \ 18118596f50SGeorge McCollister if ((_dp)->ds == (_ds) && (_dp)->hsr_dev == (_hsr)) 18218596f50SGeorge McCollister 183058102a6STobias Waldekranz static inline struct net_device *dsa_lag_dev(struct dsa_switch_tree *dst, 184058102a6STobias Waldekranz unsigned int id) 185058102a6STobias Waldekranz { 186058102a6STobias Waldekranz return dst->lags[id]; 187058102a6STobias Waldekranz } 188058102a6STobias Waldekranz 189058102a6STobias Waldekranz static inline int dsa_lag_id(struct dsa_switch_tree *dst, 190058102a6STobias Waldekranz struct net_device *lag) 191058102a6STobias Waldekranz { 192058102a6STobias Waldekranz unsigned int id; 193058102a6STobias Waldekranz 194058102a6STobias Waldekranz dsa_lags_foreach_id(id, dst) { 195058102a6STobias Waldekranz if (dsa_lag_dev(dst, id) == lag) 196058102a6STobias Waldekranz return id; 197058102a6STobias Waldekranz } 198058102a6STobias Waldekranz 199058102a6STobias Waldekranz return -ENODEV; 200058102a6STobias Waldekranz } 201058102a6STobias Waldekranz 20234297176SVladimir Oltean /* TC matchall action types */ 203f50f2127SFlorian Fainelli enum dsa_port_mall_action_type { 204f50f2127SFlorian Fainelli DSA_PORT_MALL_MIRROR, 20534297176SVladimir Oltean DSA_PORT_MALL_POLICER, 206f50f2127SFlorian Fainelli }; 207f50f2127SFlorian Fainelli 208f50f2127SFlorian Fainelli /* TC mirroring entry */ 209f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry { 210f50f2127SFlorian Fainelli u8 to_local_port; 211f50f2127SFlorian Fainelli bool ingress; 212f50f2127SFlorian Fainelli }; 213f50f2127SFlorian Fainelli 21434297176SVladimir Oltean /* TC port policer entry */ 21534297176SVladimir Oltean struct dsa_mall_policer_tc_entry { 2165f035af7SPo Liu u32 burst; 21734297176SVladimir Oltean u64 rate_bytes_per_sec; 21834297176SVladimir Oltean }; 21934297176SVladimir Oltean 220f50f2127SFlorian Fainelli /* TC matchall entry */ 221f50f2127SFlorian Fainelli struct dsa_mall_tc_entry { 222f50f2127SFlorian Fainelli struct list_head list; 223f50f2127SFlorian Fainelli unsigned long cookie; 224f50f2127SFlorian Fainelli enum dsa_port_mall_action_type type; 225f50f2127SFlorian Fainelli union { 226f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry mirror; 22734297176SVladimir Oltean struct dsa_mall_policer_tc_entry policer; 228f50f2127SFlorian Fainelli }; 229f50f2127SFlorian Fainelli }; 230f50f2127SFlorian Fainelli 231f50f2127SFlorian Fainelli 232c8b09808SAndrew Lunn struct dsa_port { 233f8b8b1cdSVivien Didelot /* A CPU port is physically connected to a master device. 234f8b8b1cdSVivien Didelot * A user port exposed to userspace has a slave device. 235f8b8b1cdSVivien Didelot */ 236f8b8b1cdSVivien Didelot union { 237f8b8b1cdSVivien Didelot struct net_device *master; 238f8b8b1cdSVivien Didelot struct net_device *slave; 239f8b8b1cdSVivien Didelot }; 240f8b8b1cdSVivien Didelot 241357f203bSVladimir Oltean /* Copy of the tagging protocol operations, for quicker access 242357f203bSVladimir Oltean * in the data path. Valid only for the CPU ports. 243357f203bSVladimir Oltean */ 24415240248SVivien Didelot const struct dsa_device_ops *tag_ops; 24515240248SVivien Didelot 2463e41f93bSVivien Didelot /* Copies for faster access in master receive hot path */ 2473e41f93bSVivien Didelot struct dsa_switch_tree *dst; 2483e41f93bSVivien Didelot struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev, 2493e41f93bSVivien Didelot struct packet_type *pt); 250cc1939e4SVladimir Oltean bool (*filter)(const struct sk_buff *skb, struct net_device *dev); 2513e41f93bSVivien Didelot 252057cad2cSVivien Didelot enum { 253057cad2cSVivien Didelot DSA_PORT_TYPE_UNUSED = 0, 254057cad2cSVivien Didelot DSA_PORT_TYPE_CPU, 255057cad2cSVivien Didelot DSA_PORT_TYPE_DSA, 256057cad2cSVivien Didelot DSA_PORT_TYPE_USER, 257057cad2cSVivien Didelot } type; 258057cad2cSVivien Didelot 259818be848SVivien Didelot struct dsa_switch *ds; 260818be848SVivien Didelot unsigned int index; 26171e0bbdeSFlorian Fainelli const char *name; 26268b2d4a8SVivien Didelot struct dsa_port *cpu_dp; 263*83216e39SMichael Walle u8 mac[ETH_ALEN]; 264189b0d93SAndrew Lunn struct device_node *dn; 26534a79f63SVivien Didelot unsigned int ageing_time; 26633162e9aSVladimir Oltean bool vlan_filtering; 267732f794cSVivien Didelot u8 stp_state; 268a5e9a02eSVivien Didelot struct net_device *bridge_dev; 26996567d5dSAndrew Lunn struct devlink_port devlink_port; 2703122433eSAndrew Lunn bool devlink_port_setup; 271aab9c406SFlorian Fainelli struct phylink *pl; 27244cc27e4SIoana Ciornei struct phylink_config pl_config; 273058102a6STobias Waldekranz struct net_device *lag_dev; 274058102a6STobias Waldekranz bool lag_tx_enabled; 27518596f50SGeorge McCollister struct net_device *hsr_dev; 27697a69a0dSVladimir Oltean 277ab8ccae1SVivien Didelot struct list_head list; 278ab8ccae1SVivien Didelot 27967dbb9d4SFlorian Fainelli /* 280c362beb0SVladimir Oltean * Give the switch driver somewhere to hang its per-port private data 281c362beb0SVladimir Oltean * structures (accessible from the tagger). 282c362beb0SVladimir Oltean */ 283c362beb0SVladimir Oltean void *priv; 284c362beb0SVladimir Oltean 285c362beb0SVladimir Oltean /* 28667dbb9d4SFlorian Fainelli * Original copy of the master netdev ethtool_ops 28767dbb9d4SFlorian Fainelli */ 28867dbb9d4SFlorian Fainelli const struct ethtool_ops *orig_ethtool_ops; 289da7b9e9bSFlorian Fainelli 290da7b9e9bSFlorian Fainelli /* 291da7b9e9bSFlorian Fainelli * Original copy of the master netdev net_device_ops 292da7b9e9bSFlorian Fainelli */ 2934cfab356SFlorian Fainelli const struct dsa_netdevice_ops *netdev_ops; 294fb35c60cSVivien Didelot 295fb35c60cSVivien Didelot bool setup; 296c8b09808SAndrew Lunn }; 297c8b09808SAndrew Lunn 298c5f51765SVivien Didelot /* TODO: ideally DSA ports would have a single dp->link_dp member, 299c5f51765SVivien Didelot * and no dst->rtable nor this struct dsa_link would be needed, 300c5f51765SVivien Didelot * but this would require some more complex tree walking, 301c5f51765SVivien Didelot * so keep it stupid at the moment and list them all. 302c5f51765SVivien Didelot */ 303c5f51765SVivien Didelot struct dsa_link { 304c5f51765SVivien Didelot struct dsa_port *dp; 305c5f51765SVivien Didelot struct dsa_port *link_dp; 306c5f51765SVivien Didelot struct list_head list; 307c5f51765SVivien Didelot }; 308c5f51765SVivien Didelot 309c8f0b869SBen Hutchings struct dsa_switch { 310fb35c60cSVivien Didelot bool setup; 311fb35c60cSVivien Didelot 312c33063d6SAndrew Lunn struct device *dev; 313c33063d6SAndrew Lunn 314c8f0b869SBen Hutchings /* 315c8f0b869SBen Hutchings * Parent switch tree, and switch index. 316c8f0b869SBen Hutchings */ 317c8f0b869SBen Hutchings struct dsa_switch_tree *dst; 31899feaafcSVivien Didelot unsigned int index; 319c8f0b869SBen Hutchings 320f515f192SVivien Didelot /* Listener for switch fabric events */ 321f515f192SVivien Didelot struct notifier_block nb; 322f515f192SVivien Didelot 323c8f0b869SBen Hutchings /* 3247543a6d5SAndrew Lunn * Give the switch driver somewhere to hang its private data 3257543a6d5SAndrew Lunn * structure. 3267543a6d5SAndrew Lunn */ 3277543a6d5SAndrew Lunn void *priv; 3287543a6d5SAndrew Lunn 3297543a6d5SAndrew Lunn /* 330c8f0b869SBen Hutchings * Configuration data for this switch. 331c8f0b869SBen Hutchings */ 332ff04955cSAndrew Lunn struct dsa_chip_data *cd; 333c8f0b869SBen Hutchings 334c8f0b869SBen Hutchings /* 3359d490b4eSVivien Didelot * The switch operations. 336c8f0b869SBen Hutchings */ 337a82f67afSFlorian Fainelli const struct dsa_switch_ops *ops; 338c8f0b869SBen Hutchings 33966472fc0SAndrew Lunn /* 340c8f0b869SBen Hutchings * Slave mii_bus and devices for the individual ports. 341c8f0b869SBen Hutchings */ 3420d8bcdd3SFlorian Fainelli u32 phys_mii_mask; 343c8f0b869SBen Hutchings struct mii_bus *slave_mii_bus; 344a0c02161SVivien Didelot 3450f3da6afSVivien Didelot /* Ageing Time limits in msecs */ 3460f3da6afSVivien Didelot unsigned int ageing_time_min; 3470f3da6afSVivien Didelot unsigned int ageing_time_max; 3480f3da6afSVivien Didelot 34996567d5dSAndrew Lunn /* devlink used to represent this switch device */ 35096567d5dSAndrew Lunn struct devlink *devlink; 35196567d5dSAndrew Lunn 35255199df6SFlorian Fainelli /* Number of switch port queues */ 35355199df6SFlorian Fainelli unsigned int num_tx_queues; 35455199df6SFlorian Fainelli 3558f5d16f6SVladimir Oltean /* Disallow bridge core from requesting different VLAN awareness 3568f5d16f6SVladimir Oltean * settings on ports if not hardware-supported 3578f5d16f6SVladimir Oltean */ 3588f5d16f6SVladimir Oltean bool vlan_filtering_is_global; 3598f5d16f6SVladimir Oltean 36054a0ed0dSRussell King /* Pass .port_vlan_add and .port_vlan_del to drivers even for bridges 36154a0ed0dSRussell King * that have vlan_filtering=0. All drivers should ideally set this (and 36254a0ed0dSRussell King * then the option would get removed), but it is unknown whether this 36354a0ed0dSRussell King * would break things or not. 36454a0ed0dSRussell King */ 36554a0ed0dSRussell King bool configure_vlan_while_not_filtering; 36654a0ed0dSRussell King 3671dc0408cSFlorian Fainelli /* If the switch driver always programs the CPU port as egress tagged 3681dc0408cSFlorian Fainelli * despite the VLAN configuration indicating otherwise, then setting 3691dc0408cSFlorian Fainelli * @untag_bridge_pvid will force the DSA receive path to pop the bridge's 3701dc0408cSFlorian Fainelli * default_pvid VLAN tagged frames to offer a consistent behavior 3711dc0408cSFlorian Fainelli * between a vlan_filtering=0 and vlan_filtering=1 bridge device. 3721dc0408cSFlorian Fainelli */ 3731dc0408cSFlorian Fainelli bool untag_bridge_pvid; 3741dc0408cSFlorian Fainelli 375d5f19486SVladimir Oltean /* Let DSA manage the FDB entries towards the CPU, based on the 376d5f19486SVladimir Oltean * software bridge database. 377d5f19486SVladimir Oltean */ 378d5f19486SVladimir Oltean bool assisted_learning_on_cpu_port; 379d5f19486SVladimir Oltean 38014574676SVladimir Oltean /* In case vlan_filtering_is_global is set, the VLAN awareness state 38114574676SVladimir Oltean * should be retrieved from here and not from the per-port settings. 38214574676SVladimir Oltean */ 38314574676SVladimir Oltean bool vlan_filtering; 38414574676SVladimir Oltean 385787cac3fSVladimir Oltean /* MAC PCS does not provide link state change interrupt, and requires 386787cac3fSVladimir Oltean * polling. Flag passed on to PHYLINK. 387787cac3fSVladimir Oltean */ 388787cac3fSVladimir Oltean bool pcs_poll; 389787cac3fSVladimir Oltean 390bff33f7eSVladimir Oltean /* For switches that only have the MRU configurable. To ensure the 391bff33f7eSVladimir Oltean * configured MTU is not exceeded, normalization of MRU on all bridged 392bff33f7eSVladimir Oltean * interfaces is needed. 393bff33f7eSVladimir Oltean */ 394bff33f7eSVladimir Oltean bool mtu_enforcement_ingress; 395bff33f7eSVladimir Oltean 396058102a6STobias Waldekranz /* Drivers that benefit from having an ID associated with each 397058102a6STobias Waldekranz * offloaded LAG should set this to the maximum number of 398058102a6STobias Waldekranz * supported IDs. DSA will then maintain a mapping of _at 399058102a6STobias Waldekranz * least_ these many IDs, accessible to drivers via 400058102a6STobias Waldekranz * dsa_lag_id(). 401058102a6STobias Waldekranz */ 402058102a6STobias Waldekranz unsigned int num_lag_ids; 403058102a6STobias Waldekranz 404a0c02161SVivien Didelot size_t num_ports; 405c8f0b869SBen Hutchings }; 406c8f0b869SBen Hutchings 40768bb8ea8SVivien Didelot static inline struct dsa_port *dsa_to_port(struct dsa_switch *ds, int p) 408c38c5a66SVivien Didelot { 409b96ddf25SVivien Didelot struct dsa_switch_tree *dst = ds->dst; 410d607525bSVivien Didelot struct dsa_port *dp; 411b96ddf25SVivien Didelot 412b96ddf25SVivien Didelot list_for_each_entry(dp, &dst->ports, list) 413b96ddf25SVivien Didelot if (dp->ds == ds && dp->index == p) 414b96ddf25SVivien Didelot return dp; 415d607525bSVivien Didelot 416d607525bSVivien Didelot return NULL; 417c38c5a66SVivien Didelot } 418c38c5a66SVivien Didelot 419bff7b688SVivien Didelot static inline bool dsa_is_unused_port(struct dsa_switch *ds, int p) 420bff7b688SVivien Didelot { 421c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_UNUSED; 422bff7b688SVivien Didelot } 423bff7b688SVivien Didelot 424c8f0b869SBen Hutchings static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p) 425c8f0b869SBen Hutchings { 426c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_CPU; 427c8f0b869SBen Hutchings } 428c8f0b869SBen Hutchings 42960045cbfSAndrew Lunn static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p) 43060045cbfSAndrew Lunn { 431c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_DSA; 43260045cbfSAndrew Lunn } 43360045cbfSAndrew Lunn 4342b3e9891SVivien Didelot static inline bool dsa_is_user_port(struct dsa_switch *ds, int p) 4356cd456f3SVivien Didelot { 436c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_USER; 4376cd456f3SVivien Didelot } 4386cd456f3SVivien Didelot 43902bc6e54SVivien Didelot static inline u32 dsa_user_ports(struct dsa_switch *ds) 44002bc6e54SVivien Didelot { 441c38c5a66SVivien Didelot u32 mask = 0; 442c38c5a66SVivien Didelot int p; 44302bc6e54SVivien Didelot 444c38c5a66SVivien Didelot for (p = 0; p < ds->num_ports; p++) 445c38c5a66SVivien Didelot if (dsa_is_user_port(ds, p)) 446c38c5a66SVivien Didelot mask |= BIT(p); 447c38c5a66SVivien Didelot 448c38c5a66SVivien Didelot return mask; 449c8652c83SVivien Didelot } 450c8652c83SVivien Didelot 451c5f51765SVivien Didelot /* Return the local port used to reach an arbitrary switch device */ 452c5f51765SVivien Didelot static inline unsigned int dsa_routing_port(struct dsa_switch *ds, int device) 453c5f51765SVivien Didelot { 454c5f51765SVivien Didelot struct dsa_switch_tree *dst = ds->dst; 455c5f51765SVivien Didelot struct dsa_link *dl; 456c5f51765SVivien Didelot 457c5f51765SVivien Didelot list_for_each_entry(dl, &dst->rtable, list) 458c5f51765SVivien Didelot if (dl->dp->ds == ds && dl->link_dp->ds->index == device) 459c5f51765SVivien Didelot return dl->dp->index; 460c5f51765SVivien Didelot 461c5f51765SVivien Didelot return ds->num_ports; 462c5f51765SVivien Didelot } 463c5f51765SVivien Didelot 4643b8fac5dSVivien Didelot /* Return the local port used to reach an arbitrary switch port */ 4653b8fac5dSVivien Didelot static inline unsigned int dsa_towards_port(struct dsa_switch *ds, int device, 4663b8fac5dSVivien Didelot int port) 4673b8fac5dSVivien Didelot { 4683b8fac5dSVivien Didelot if (device == ds->index) 4693b8fac5dSVivien Didelot return port; 4703b8fac5dSVivien Didelot else 471c5f51765SVivien Didelot return dsa_routing_port(ds, device); 4723b8fac5dSVivien Didelot } 4733b8fac5dSVivien Didelot 4743b8fac5dSVivien Didelot /* Return the local port used to reach the dedicated CPU port */ 47507073c79SVivien Didelot static inline unsigned int dsa_upstream_port(struct dsa_switch *ds, int port) 476c8f0b869SBen Hutchings { 47707073c79SVivien Didelot const struct dsa_port *dp = dsa_to_port(ds, port); 47807073c79SVivien Didelot const struct dsa_port *cpu_dp = dp->cpu_dp; 47907073c79SVivien Didelot 48007073c79SVivien Didelot if (!cpu_dp) 48107073c79SVivien Didelot return port; 482c8f0b869SBen Hutchings 4833b8fac5dSVivien Didelot return dsa_towards_port(ds, cpu_dp->ds->index, cpu_dp->index); 484c8f0b869SBen Hutchings } 485c8f0b869SBen Hutchings 486cf2d45f5SVladimir Oltean static inline bool dsa_port_is_vlan_filtering(const struct dsa_port *dp) 487cf2d45f5SVladimir Oltean { 488cf2d45f5SVladimir Oltean const struct dsa_switch *ds = dp->ds; 489cf2d45f5SVladimir Oltean 490cf2d45f5SVladimir Oltean if (ds->vlan_filtering_is_global) 491cf2d45f5SVladimir Oltean return ds->vlan_filtering; 492cf2d45f5SVladimir Oltean else 493cf2d45f5SVladimir Oltean return dp->vlan_filtering; 494cf2d45f5SVladimir Oltean } 495cf2d45f5SVladimir Oltean 496cc76ce9eSTobias Waldekranz static inline 497cc76ce9eSTobias Waldekranz struct net_device *dsa_port_to_bridge_port(const struct dsa_port *dp) 498cc76ce9eSTobias Waldekranz { 499cc76ce9eSTobias Waldekranz if (!dp->bridge_dev) 500cc76ce9eSTobias Waldekranz return NULL; 501cc76ce9eSTobias Waldekranz 502cc76ce9eSTobias Waldekranz if (dp->lag_dev) 503cc76ce9eSTobias Waldekranz return dp->lag_dev; 504cc76ce9eSTobias Waldekranz else if (dp->hsr_dev) 505cc76ce9eSTobias Waldekranz return dp->hsr_dev; 506cc76ce9eSTobias Waldekranz 507cc76ce9eSTobias Waldekranz return dp->slave; 508cc76ce9eSTobias Waldekranz } 509cc76ce9eSTobias Waldekranz 5102bedde1aSArkadi Sharshevsky typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid, 5112bedde1aSArkadi Sharshevsky bool is_static, void *data); 5129d490b4eSVivien Didelot struct dsa_switch_ops { 51353da0ebaSVladimir Oltean /* 51453da0ebaSVladimir Oltean * Tagging protocol helpers called for the CPU ports and DSA links. 51553da0ebaSVladimir Oltean * @get_tag_protocol retrieves the initial tagging protocol and is 51653da0ebaSVladimir Oltean * mandatory. Switches which can operate using multiple tagging 51753da0ebaSVladimir Oltean * protocols should implement @change_tag_protocol and report in 51853da0ebaSVladimir Oltean * @get_tag_protocol the tagger in current use. 51953da0ebaSVladimir Oltean */ 5205ed4e3ebSFlorian Fainelli enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds, 5214d776482SFlorian Fainelli int port, 5224d776482SFlorian Fainelli enum dsa_tag_protocol mprot); 52353da0ebaSVladimir Oltean int (*change_tag_protocol)(struct dsa_switch *ds, int port, 52453da0ebaSVladimir Oltean enum dsa_tag_protocol proto); 5257b314362SAndrew Lunn 526c8f0b869SBen Hutchings int (*setup)(struct dsa_switch *ds); 5275e3f847aSVladimir Oltean void (*teardown)(struct dsa_switch *ds); 5286819563eSFlorian Fainelli u32 (*get_phy_flags)(struct dsa_switch *ds, int port); 529c8f0b869SBen Hutchings 530c8f0b869SBen Hutchings /* 531c8f0b869SBen Hutchings * Access to the switch's PHY registers. 532c8f0b869SBen Hutchings */ 533c8f0b869SBen Hutchings int (*phy_read)(struct dsa_switch *ds, int port, int regnum); 534c8f0b869SBen Hutchings int (*phy_write)(struct dsa_switch *ds, int port, 535c8f0b869SBen Hutchings int regnum, u16 val); 536c8f0b869SBen Hutchings 537c8f0b869SBen Hutchings /* 538ec9436baSFlorian Fainelli * Link state adjustment (called from libphy) 539ec9436baSFlorian Fainelli */ 540ec9436baSFlorian Fainelli void (*adjust_link)(struct dsa_switch *ds, int port, 541ec9436baSFlorian Fainelli struct phy_device *phydev); 542ce31b31cSFlorian Fainelli void (*fixed_link_update)(struct dsa_switch *ds, int port, 543ce31b31cSFlorian Fainelli struct fixed_phy_status *st); 544ec9436baSFlorian Fainelli 545ec9436baSFlorian Fainelli /* 54611d8f3ddSFlorian Fainelli * PHYLINK integration 54711d8f3ddSFlorian Fainelli */ 54811d8f3ddSFlorian Fainelli void (*phylink_validate)(struct dsa_switch *ds, int port, 54911d8f3ddSFlorian Fainelli unsigned long *supported, 55011d8f3ddSFlorian Fainelli struct phylink_link_state *state); 55111d8f3ddSFlorian Fainelli int (*phylink_mac_link_state)(struct dsa_switch *ds, int port, 55211d8f3ddSFlorian Fainelli struct phylink_link_state *state); 55311d8f3ddSFlorian Fainelli void (*phylink_mac_config)(struct dsa_switch *ds, int port, 55411d8f3ddSFlorian Fainelli unsigned int mode, 55511d8f3ddSFlorian Fainelli const struct phylink_link_state *state); 55611d8f3ddSFlorian Fainelli void (*phylink_mac_an_restart)(struct dsa_switch *ds, int port); 55711d8f3ddSFlorian Fainelli void (*phylink_mac_link_down)(struct dsa_switch *ds, int port, 55811d8f3ddSFlorian Fainelli unsigned int mode, 55911d8f3ddSFlorian Fainelli phy_interface_t interface); 56011d8f3ddSFlorian Fainelli void (*phylink_mac_link_up)(struct dsa_switch *ds, int port, 56111d8f3ddSFlorian Fainelli unsigned int mode, 56211d8f3ddSFlorian Fainelli phy_interface_t interface, 5635b502a7bSRussell King struct phy_device *phydev, 5645b502a7bSRussell King int speed, int duplex, 5655b502a7bSRussell King bool tx_pause, bool rx_pause); 56611d8f3ddSFlorian Fainelli void (*phylink_fixed_state)(struct dsa_switch *ds, int port, 56711d8f3ddSFlorian Fainelli struct phylink_link_state *state); 56811d8f3ddSFlorian Fainelli /* 569c2ec5f2eSOleksij Rempel * Port statistics counters. 570c8f0b869SBen Hutchings */ 57189f09048SFlorian Fainelli void (*get_strings)(struct dsa_switch *ds, int port, 57289f09048SFlorian Fainelli u32 stringset, uint8_t *data); 573c8f0b869SBen Hutchings void (*get_ethtool_stats)(struct dsa_switch *ds, 574c8f0b869SBen Hutchings int port, uint64_t *data); 57589f09048SFlorian Fainelli int (*get_sset_count)(struct dsa_switch *ds, int port, int sset); 576cf963573SFlorian Fainelli void (*get_ethtool_phy_stats)(struct dsa_switch *ds, 577cf963573SFlorian Fainelli int port, uint64_t *data); 578c2ec5f2eSOleksij Rempel void (*get_stats64)(struct dsa_switch *ds, int port, 579c2ec5f2eSOleksij Rempel struct rtnl_link_stats64 *s); 58024462549SFlorian Fainelli 58124462549SFlorian Fainelli /* 58219e57c4eSFlorian Fainelli * ethtool Wake-on-LAN 58319e57c4eSFlorian Fainelli */ 58419e57c4eSFlorian Fainelli void (*get_wol)(struct dsa_switch *ds, int port, 58519e57c4eSFlorian Fainelli struct ethtool_wolinfo *w); 58619e57c4eSFlorian Fainelli int (*set_wol)(struct dsa_switch *ds, int port, 58719e57c4eSFlorian Fainelli struct ethtool_wolinfo *w); 58819e57c4eSFlorian Fainelli 58919e57c4eSFlorian Fainelli /* 5900336369dSBrandon Streiff * ethtool timestamp info 5910336369dSBrandon Streiff */ 5920336369dSBrandon Streiff int (*get_ts_info)(struct dsa_switch *ds, int port, 5930336369dSBrandon Streiff struct ethtool_ts_info *ts); 5940336369dSBrandon Streiff 5950336369dSBrandon Streiff /* 59624462549SFlorian Fainelli * Suspend and resume 59724462549SFlorian Fainelli */ 59824462549SFlorian Fainelli int (*suspend)(struct dsa_switch *ds); 59924462549SFlorian Fainelli int (*resume)(struct dsa_switch *ds); 600b2f2af21SFlorian Fainelli 601b2f2af21SFlorian Fainelli /* 602b2f2af21SFlorian Fainelli * Port enable/disable 603b2f2af21SFlorian Fainelli */ 604b2f2af21SFlorian Fainelli int (*port_enable)(struct dsa_switch *ds, int port, 605b2f2af21SFlorian Fainelli struct phy_device *phy); 60675104db0SAndrew Lunn void (*port_disable)(struct dsa_switch *ds, int port); 6077905288fSFlorian Fainelli 6087905288fSFlorian Fainelli /* 60908f50061SVivien Didelot * Port's MAC EEE settings 6107905288fSFlorian Fainelli */ 61108f50061SVivien Didelot int (*set_mac_eee)(struct dsa_switch *ds, int port, 6127905288fSFlorian Fainelli struct ethtool_eee *e); 61308f50061SVivien Didelot int (*get_mac_eee)(struct dsa_switch *ds, int port, 6147905288fSFlorian Fainelli struct ethtool_eee *e); 61551579c3fSGuenter Roeck 6166793abb4SGuenter Roeck /* EEPROM access */ 6176793abb4SGuenter Roeck int (*get_eeprom_len)(struct dsa_switch *ds); 6186793abb4SGuenter Roeck int (*get_eeprom)(struct dsa_switch *ds, 6196793abb4SGuenter Roeck struct ethtool_eeprom *eeprom, u8 *data); 6206793abb4SGuenter Roeck int (*set_eeprom)(struct dsa_switch *ds, 6216793abb4SGuenter Roeck struct ethtool_eeprom *eeprom, u8 *data); 6223d762a0fSGuenter Roeck 6233d762a0fSGuenter Roeck /* 6243d762a0fSGuenter Roeck * Register access. 6253d762a0fSGuenter Roeck */ 6263d762a0fSGuenter Roeck int (*get_regs_len)(struct dsa_switch *ds, int port); 6273d762a0fSGuenter Roeck void (*get_regs)(struct dsa_switch *ds, int port, 6283d762a0fSGuenter Roeck struct ethtool_regs *regs, void *p); 629b73adef6SFlorian Fainelli 630b73adef6SFlorian Fainelli /* 631e358bef7SVladimir Oltean * Upper device tracking. 632e358bef7SVladimir Oltean */ 633e358bef7SVladimir Oltean int (*port_prechangeupper)(struct dsa_switch *ds, int port, 634e358bef7SVladimir Oltean struct netdev_notifier_changeupper_info *info); 635e358bef7SVladimir Oltean 636e358bef7SVladimir Oltean /* 637b73adef6SFlorian Fainelli * Bridge integration 638b73adef6SFlorian Fainelli */ 63934a79f63SVivien Didelot int (*set_ageing_time)(struct dsa_switch *ds, unsigned int msecs); 64071327a4eSVivien Didelot int (*port_bridge_join)(struct dsa_switch *ds, int port, 641a6692754SVivien Didelot struct net_device *bridge); 642f123f2fbSVivien Didelot void (*port_bridge_leave)(struct dsa_switch *ds, int port, 643f123f2fbSVivien Didelot struct net_device *bridge); 64443c44a9fSVivien Didelot void (*port_stp_state_set)(struct dsa_switch *ds, int port, 645b73adef6SFlorian Fainelli u8 state); 646732f794cSVivien Didelot void (*port_fast_age)(struct dsa_switch *ds, int port); 647a8b659e7SVladimir Oltean int (*port_pre_bridge_flags)(struct dsa_switch *ds, int port, 648a8b659e7SVladimir Oltean struct switchdev_brport_flags flags, 649a8b659e7SVladimir Oltean struct netlink_ext_ack *extack); 650a8b659e7SVladimir Oltean int (*port_bridge_flags)(struct dsa_switch *ds, int port, 651a8b659e7SVladimir Oltean struct switchdev_brport_flags flags, 652a8b659e7SVladimir Oltean struct netlink_ext_ack *extack); 653a8b659e7SVladimir Oltean int (*port_set_mrouter)(struct dsa_switch *ds, int port, bool mrouter, 654a8b659e7SVladimir Oltean struct netlink_ext_ack *extack); 6552a778e1bSVivien Didelot 6562a778e1bSVivien Didelot /* 65711149536SVivien Didelot * VLAN support 65811149536SVivien Didelot */ 659fb2dabadSVivien Didelot int (*port_vlan_filtering)(struct dsa_switch *ds, int port, 66089153ed6SVladimir Oltean bool vlan_filtering, 66189153ed6SVladimir Oltean struct netlink_ext_ack *extack); 6621958d581SVladimir Oltean int (*port_vlan_add)(struct dsa_switch *ds, int port, 66331046a5fSVladimir Oltean const struct switchdev_obj_port_vlan *vlan, 66431046a5fSVladimir Oltean struct netlink_ext_ack *extack); 66576e398a6SVivien Didelot int (*port_vlan_del)(struct dsa_switch *ds, int port, 66676e398a6SVivien Didelot const struct switchdev_obj_port_vlan *vlan); 66711149536SVivien Didelot /* 6682a778e1bSVivien Didelot * Forwarding database 6692a778e1bSVivien Didelot */ 6701b6dd556SArkadi Sharshevsky int (*port_fdb_add)(struct dsa_switch *ds, int port, 6716c2c1dcbSArkadi Sharshevsky const unsigned char *addr, u16 vid); 6722a778e1bSVivien Didelot int (*port_fdb_del)(struct dsa_switch *ds, int port, 6736c2c1dcbSArkadi Sharshevsky const unsigned char *addr, u16 vid); 674ea70ba98SVivien Didelot int (*port_fdb_dump)(struct dsa_switch *ds, int port, 6752bedde1aSArkadi Sharshevsky dsa_fdb_dump_cb_t *cb, void *data); 6768df30255SVivien Didelot 6778df30255SVivien Didelot /* 6788df30255SVivien Didelot * Multicast database 6798df30255SVivien Didelot */ 680a52b2da7SVladimir Oltean int (*port_mdb_add)(struct dsa_switch *ds, int port, 6813709aadcSVivien Didelot const struct switchdev_obj_port_mdb *mdb); 6828df30255SVivien Didelot int (*port_mdb_del)(struct dsa_switch *ds, int port, 6838df30255SVivien Didelot const struct switchdev_obj_port_mdb *mdb); 684bf9f2648SFlorian Fainelli /* 685bf9f2648SFlorian Fainelli * RXNFC 686bf9f2648SFlorian Fainelli */ 687bf9f2648SFlorian Fainelli int (*get_rxnfc)(struct dsa_switch *ds, int port, 688bf9f2648SFlorian Fainelli struct ethtool_rxnfc *nfc, u32 *rule_locs); 689bf9f2648SFlorian Fainelli int (*set_rxnfc)(struct dsa_switch *ds, int port, 690bf9f2648SFlorian Fainelli struct ethtool_rxnfc *nfc); 691f50f2127SFlorian Fainelli 692f50f2127SFlorian Fainelli /* 693f50f2127SFlorian Fainelli * TC integration 694f50f2127SFlorian Fainelli */ 695ed11bb1fSVladimir Oltean int (*cls_flower_add)(struct dsa_switch *ds, int port, 696ed11bb1fSVladimir Oltean struct flow_cls_offload *cls, bool ingress); 697ed11bb1fSVladimir Oltean int (*cls_flower_del)(struct dsa_switch *ds, int port, 698ed11bb1fSVladimir Oltean struct flow_cls_offload *cls, bool ingress); 699ed11bb1fSVladimir Oltean int (*cls_flower_stats)(struct dsa_switch *ds, int port, 700ed11bb1fSVladimir Oltean struct flow_cls_offload *cls, bool ingress); 701f50f2127SFlorian Fainelli int (*port_mirror_add)(struct dsa_switch *ds, int port, 702f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry *mirror, 703f50f2127SFlorian Fainelli bool ingress); 704f50f2127SFlorian Fainelli void (*port_mirror_del)(struct dsa_switch *ds, int port, 705f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry *mirror); 70634297176SVladimir Oltean int (*port_policer_add)(struct dsa_switch *ds, int port, 70734297176SVladimir Oltean struct dsa_mall_policer_tc_entry *policer); 70834297176SVladimir Oltean void (*port_policer_del)(struct dsa_switch *ds, int port); 70947d23af2SVladimir Oltean int (*port_setup_tc)(struct dsa_switch *ds, int port, 71047d23af2SVladimir Oltean enum tc_setup_type type, void *type_data); 71140ef2c93SVivien Didelot 71240ef2c93SVivien Didelot /* 71340ef2c93SVivien Didelot * Cross-chip operations 71440ef2c93SVivien Didelot */ 715f66a6a69SVladimir Oltean int (*crosschip_bridge_join)(struct dsa_switch *ds, int tree_index, 716f66a6a69SVladimir Oltean int sw_index, int port, 717f66a6a69SVladimir Oltean struct net_device *br); 718f66a6a69SVladimir Oltean void (*crosschip_bridge_leave)(struct dsa_switch *ds, int tree_index, 719f66a6a69SVladimir Oltean int sw_index, int port, 720f66a6a69SVladimir Oltean struct net_device *br); 721058102a6STobias Waldekranz int (*crosschip_lag_change)(struct dsa_switch *ds, int sw_index, 722058102a6STobias Waldekranz int port); 723058102a6STobias Waldekranz int (*crosschip_lag_join)(struct dsa_switch *ds, int sw_index, 724058102a6STobias Waldekranz int port, struct net_device *lag, 725058102a6STobias Waldekranz struct netdev_lag_upper_info *info); 726058102a6STobias Waldekranz int (*crosschip_lag_leave)(struct dsa_switch *ds, int sw_index, 727058102a6STobias Waldekranz int port, struct net_device *lag); 7280336369dSBrandon Streiff 7290336369dSBrandon Streiff /* 7300336369dSBrandon Streiff * PTP functionality 7310336369dSBrandon Streiff */ 7320336369dSBrandon Streiff int (*port_hwtstamp_get)(struct dsa_switch *ds, int port, 7330336369dSBrandon Streiff struct ifreq *ifr); 7340336369dSBrandon Streiff int (*port_hwtstamp_set)(struct dsa_switch *ds, int port, 7350336369dSBrandon Streiff struct ifreq *ifr); 73690af1059SBrandon Streiff bool (*port_txtstamp)(struct dsa_switch *ds, int port, 73790af1059SBrandon Streiff struct sk_buff *clone, unsigned int type); 73890af1059SBrandon Streiff bool (*port_rxtstamp)(struct dsa_switch *ds, int port, 73990af1059SBrandon Streiff struct sk_buff *skb, unsigned int type); 74097a69a0dSVladimir Oltean 7410f06b855SAndrew Lunn /* Devlink parameters, etc */ 7426b297524SAndrew Lunn int (*devlink_param_get)(struct dsa_switch *ds, u32 id, 7436b297524SAndrew Lunn struct devlink_param_gset_ctx *ctx); 7446b297524SAndrew Lunn int (*devlink_param_set)(struct dsa_switch *ds, u32 id, 7456b297524SAndrew Lunn struct devlink_param_gset_ctx *ctx); 7460f06b855SAndrew Lunn int (*devlink_info_get)(struct dsa_switch *ds, 7470f06b855SAndrew Lunn struct devlink_info_req *req, 7480f06b855SAndrew Lunn struct netlink_ext_ack *extack); 7492a6ef763SVladimir Oltean int (*devlink_sb_pool_get)(struct dsa_switch *ds, 7502a6ef763SVladimir Oltean unsigned int sb_index, u16 pool_index, 7512a6ef763SVladimir Oltean struct devlink_sb_pool_info *pool_info); 7522a6ef763SVladimir Oltean int (*devlink_sb_pool_set)(struct dsa_switch *ds, unsigned int sb_index, 7532a6ef763SVladimir Oltean u16 pool_index, u32 size, 7542a6ef763SVladimir Oltean enum devlink_sb_threshold_type threshold_type, 7552a6ef763SVladimir Oltean struct netlink_ext_ack *extack); 7562a6ef763SVladimir Oltean int (*devlink_sb_port_pool_get)(struct dsa_switch *ds, int port, 7572a6ef763SVladimir Oltean unsigned int sb_index, u16 pool_index, 7582a6ef763SVladimir Oltean u32 *p_threshold); 7592a6ef763SVladimir Oltean int (*devlink_sb_port_pool_set)(struct dsa_switch *ds, int port, 7602a6ef763SVladimir Oltean unsigned int sb_index, u16 pool_index, 7612a6ef763SVladimir Oltean u32 threshold, 7622a6ef763SVladimir Oltean struct netlink_ext_ack *extack); 7632a6ef763SVladimir Oltean int (*devlink_sb_tc_pool_bind_get)(struct dsa_switch *ds, int port, 7642a6ef763SVladimir Oltean unsigned int sb_index, u16 tc_index, 7652a6ef763SVladimir Oltean enum devlink_sb_pool_type pool_type, 7662a6ef763SVladimir Oltean u16 *p_pool_index, u32 *p_threshold); 7672a6ef763SVladimir Oltean int (*devlink_sb_tc_pool_bind_set)(struct dsa_switch *ds, int port, 7682a6ef763SVladimir Oltean unsigned int sb_index, u16 tc_index, 7692a6ef763SVladimir Oltean enum devlink_sb_pool_type pool_type, 7702a6ef763SVladimir Oltean u16 pool_index, u32 threshold, 7712a6ef763SVladimir Oltean struct netlink_ext_ack *extack); 7722a6ef763SVladimir Oltean int (*devlink_sb_occ_snapshot)(struct dsa_switch *ds, 7732a6ef763SVladimir Oltean unsigned int sb_index); 7742a6ef763SVladimir Oltean int (*devlink_sb_occ_max_clear)(struct dsa_switch *ds, 7752a6ef763SVladimir Oltean unsigned int sb_index); 7762a6ef763SVladimir Oltean int (*devlink_sb_occ_port_pool_get)(struct dsa_switch *ds, int port, 7772a6ef763SVladimir Oltean unsigned int sb_index, u16 pool_index, 7782a6ef763SVladimir Oltean u32 *p_cur, u32 *p_max); 7792a6ef763SVladimir Oltean int (*devlink_sb_occ_tc_port_bind_get)(struct dsa_switch *ds, int port, 7802a6ef763SVladimir Oltean unsigned int sb_index, u16 tc_index, 7812a6ef763SVladimir Oltean enum devlink_sb_pool_type pool_type, 7822a6ef763SVladimir Oltean u32 *p_cur, u32 *p_max); 783bfcb8132SVladimir Oltean 784bfcb8132SVladimir Oltean /* 785bfcb8132SVladimir Oltean * MTU change functionality. Switches can also adjust their MRU through 786bfcb8132SVladimir Oltean * this method. By MTU, one understands the SDU (L2 payload) length. 787bfcb8132SVladimir Oltean * If the switch needs to account for the DSA tag on the CPU port, this 788ab88d64aSRandy Dunlap * method needs to do so privately. 789bfcb8132SVladimir Oltean */ 790bfcb8132SVladimir Oltean int (*port_change_mtu)(struct dsa_switch *ds, int port, 791bfcb8132SVladimir Oltean int new_mtu); 792bfcb8132SVladimir Oltean int (*port_max_mtu)(struct dsa_switch *ds, int port); 793058102a6STobias Waldekranz 794058102a6STobias Waldekranz /* 795058102a6STobias Waldekranz * LAG integration 796058102a6STobias Waldekranz */ 797058102a6STobias Waldekranz int (*port_lag_change)(struct dsa_switch *ds, int port); 798058102a6STobias Waldekranz int (*port_lag_join)(struct dsa_switch *ds, int port, 799058102a6STobias Waldekranz struct net_device *lag, 800058102a6STobias Waldekranz struct netdev_lag_upper_info *info); 801058102a6STobias Waldekranz int (*port_lag_leave)(struct dsa_switch *ds, int port, 802058102a6STobias Waldekranz struct net_device *lag); 80318596f50SGeorge McCollister 80418596f50SGeorge McCollister /* 80518596f50SGeorge McCollister * HSR integration 80618596f50SGeorge McCollister */ 80718596f50SGeorge McCollister int (*port_hsr_join)(struct dsa_switch *ds, int port, 80818596f50SGeorge McCollister struct net_device *hsr); 80918596f50SGeorge McCollister int (*port_hsr_leave)(struct dsa_switch *ds, int port, 81018596f50SGeorge McCollister struct net_device *hsr); 811c595c433SHoratiu Vultur 812c595c433SHoratiu Vultur /* 813c595c433SHoratiu Vultur * MRP integration 814c595c433SHoratiu Vultur */ 815c595c433SHoratiu Vultur int (*port_mrp_add)(struct dsa_switch *ds, int port, 816c595c433SHoratiu Vultur const struct switchdev_obj_mrp *mrp); 817c595c433SHoratiu Vultur int (*port_mrp_del)(struct dsa_switch *ds, int port, 818c595c433SHoratiu Vultur const struct switchdev_obj_mrp *mrp); 819c595c433SHoratiu Vultur int (*port_mrp_add_ring_role)(struct dsa_switch *ds, int port, 820c595c433SHoratiu Vultur const struct switchdev_obj_ring_role_mrp *mrp); 821c595c433SHoratiu Vultur int (*port_mrp_del_ring_role)(struct dsa_switch *ds, int port, 822c595c433SHoratiu Vultur const struct switchdev_obj_ring_role_mrp *mrp); 8236b297524SAndrew Lunn }; 8246b297524SAndrew Lunn 8256b297524SAndrew Lunn #define DSA_DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes) \ 8266b297524SAndrew Lunn DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, \ 8276b297524SAndrew Lunn dsa_devlink_param_get, dsa_devlink_param_set, NULL) 8286b297524SAndrew Lunn 8296b297524SAndrew Lunn int dsa_devlink_param_get(struct devlink *dl, u32 id, 8306b297524SAndrew Lunn struct devlink_param_gset_ctx *ctx); 8316b297524SAndrew Lunn int dsa_devlink_param_set(struct devlink *dl, u32 id, 8326b297524SAndrew Lunn struct devlink_param_gset_ctx *ctx); 8336b297524SAndrew Lunn int dsa_devlink_params_register(struct dsa_switch *ds, 8346b297524SAndrew Lunn const struct devlink_param *params, 8356b297524SAndrew Lunn size_t params_count); 8366b297524SAndrew Lunn void dsa_devlink_params_unregister(struct dsa_switch *ds, 8376b297524SAndrew Lunn const struct devlink_param *params, 8386b297524SAndrew Lunn size_t params_count); 8395cd73fbdSAndrew Lunn int dsa_devlink_resource_register(struct dsa_switch *ds, 8405cd73fbdSAndrew Lunn const char *resource_name, 8415cd73fbdSAndrew Lunn u64 resource_size, 8425cd73fbdSAndrew Lunn u64 resource_id, 8435cd73fbdSAndrew Lunn u64 parent_resource_id, 8445cd73fbdSAndrew Lunn const struct devlink_resource_size_params *size_params); 8455cd73fbdSAndrew Lunn 8465cd73fbdSAndrew Lunn void dsa_devlink_resources_unregister(struct dsa_switch *ds); 8475cd73fbdSAndrew Lunn 8485cd73fbdSAndrew Lunn void dsa_devlink_resource_occ_get_register(struct dsa_switch *ds, 8495cd73fbdSAndrew Lunn u64 resource_id, 8505cd73fbdSAndrew Lunn devlink_resource_occ_get_t *occ_get, 8515cd73fbdSAndrew Lunn void *occ_get_priv); 8525cd73fbdSAndrew Lunn void dsa_devlink_resource_occ_get_unregister(struct dsa_switch *ds, 8535cd73fbdSAndrew Lunn u64 resource_id); 85497c82c23SAndrew Lunn struct devlink_region * 85597c82c23SAndrew Lunn dsa_devlink_region_create(struct dsa_switch *ds, 85697c82c23SAndrew Lunn const struct devlink_region_ops *ops, 85797c82c23SAndrew Lunn u32 region_max_snapshots, u64 region_size); 85808156ba4SAndrew Lunn struct devlink_region * 85908156ba4SAndrew Lunn dsa_devlink_port_region_create(struct dsa_switch *ds, 86008156ba4SAndrew Lunn int port, 86108156ba4SAndrew Lunn const struct devlink_port_region_ops *ops, 86208156ba4SAndrew Lunn u32 region_max_snapshots, u64 region_size); 86397c82c23SAndrew Lunn void dsa_devlink_region_destroy(struct devlink_region *region); 86497c82c23SAndrew Lunn 865e1eea811SVladimir Oltean struct dsa_port *dsa_port_from_netdev(struct net_device *netdev); 8665cd73fbdSAndrew Lunn 8676b297524SAndrew Lunn struct dsa_devlink_priv { 8686b297524SAndrew Lunn struct dsa_switch *ds; 869c8f0b869SBen Hutchings }; 870c8f0b869SBen Hutchings 871ccc3e6b0SAndrew Lunn static inline struct dsa_switch *dsa_devlink_to_ds(struct devlink *dl) 872ccc3e6b0SAndrew Lunn { 873ccc3e6b0SAndrew Lunn struct dsa_devlink_priv *dl_priv = devlink_priv(dl); 874ccc3e6b0SAndrew Lunn 875ccc3e6b0SAndrew Lunn return dl_priv->ds; 876ccc3e6b0SAndrew Lunn } 877ccc3e6b0SAndrew Lunn 8787d1e2a10SAndrew Lunn static inline 8797d1e2a10SAndrew Lunn struct dsa_switch *dsa_devlink_port_to_ds(struct devlink_port *port) 8807d1e2a10SAndrew Lunn { 8817d1e2a10SAndrew Lunn struct devlink *dl = port->devlink; 8827d1e2a10SAndrew Lunn struct dsa_devlink_priv *dl_priv = devlink_priv(dl); 8837d1e2a10SAndrew Lunn 8847d1e2a10SAndrew Lunn return dl_priv->ds; 8857d1e2a10SAndrew Lunn } 8867d1e2a10SAndrew Lunn 8877d1e2a10SAndrew Lunn static inline int dsa_devlink_port_to_port(struct devlink_port *port) 8887d1e2a10SAndrew Lunn { 8897d1e2a10SAndrew Lunn return port->index; 8907d1e2a10SAndrew Lunn } 8917d1e2a10SAndrew Lunn 892ab3d408dSFlorian Fainelli struct dsa_switch_driver { 893ab3d408dSFlorian Fainelli struct list_head list; 894a82f67afSFlorian Fainelli const struct dsa_switch_ops *ops; 895ab3d408dSFlorian Fainelli }; 896ab3d408dSFlorian Fainelli 89714b89f36SFlorian Fainelli struct net_device *dsa_dev_to_net_device(struct device *dev); 898c8f0b869SBen Hutchings 89973a7ece8SVivien Didelot /* Keep inline for faster access in hot path */ 9009eb8eff0SVladimir Oltean static inline bool netdev_uses_dsa(const struct net_device *dev) 901c6e970a0SAndrew Lunn { 902c6e970a0SAndrew Lunn #if IS_ENABLED(CONFIG_NET_DSA) 903717ffbfbSVivien Didelot return dev->dsa_ptr && dev->dsa_ptr->rcv; 904c6e970a0SAndrew Lunn #endif 905c6e970a0SAndrew Lunn return false; 906c6e970a0SAndrew Lunn } 907c6e970a0SAndrew Lunn 908cc1939e4SVladimir Oltean static inline bool dsa_can_decode(const struct sk_buff *skb, 909cc1939e4SVladimir Oltean struct net_device *dev) 910cc1939e4SVladimir Oltean { 911cc1939e4SVladimir Oltean #if IS_ENABLED(CONFIG_NET_DSA) 912cc1939e4SVladimir Oltean return !dev->dsa_ptr->filter || dev->dsa_ptr->filter(skb, dev); 913cc1939e4SVladimir Oltean #endif 914cc1939e4SVladimir Oltean return false; 915cc1939e4SVladimir Oltean } 916cc1939e4SVladimir Oltean 9179790cf20SVladimir Oltean /* All DSA tags that push the EtherType to the right (basically all except tail 9189790cf20SVladimir Oltean * tags, which don't break dissection) can be treated the same from the 9199790cf20SVladimir Oltean * perspective of the flow dissector. 9209790cf20SVladimir Oltean * 9219790cf20SVladimir Oltean * We need to return: 9229790cf20SVladimir Oltean * - offset: the (B - A) difference between: 9239790cf20SVladimir Oltean * A. the position of the real EtherType and 9249790cf20SVladimir Oltean * B. the current skb->data (aka ETH_HLEN bytes into the frame, aka 2 bytes 9259790cf20SVladimir Oltean * after the normal EtherType was supposed to be) 9269790cf20SVladimir Oltean * The offset in bytes is exactly equal to the tagger overhead (and half of 9279790cf20SVladimir Oltean * that, in __be16 shorts). 9289790cf20SVladimir Oltean * 9299790cf20SVladimir Oltean * - proto: the value of the real EtherType. 9309790cf20SVladimir Oltean */ 9319790cf20SVladimir Oltean static inline void dsa_tag_generic_flow_dissect(const struct sk_buff *skb, 9329790cf20SVladimir Oltean __be16 *proto, int *offset) 9339790cf20SVladimir Oltean { 9349790cf20SVladimir Oltean #if IS_ENABLED(CONFIG_NET_DSA) 9359790cf20SVladimir Oltean const struct dsa_device_ops *ops = skb->dev->dsa_ptr->tag_ops; 9369790cf20SVladimir Oltean int tag_len = ops->overhead; 9379790cf20SVladimir Oltean 9389790cf20SVladimir Oltean *offset = tag_len; 9399790cf20SVladimir Oltean *proto = ((__be16 *)skb->data)[(tag_len / 2) - 1]; 9409790cf20SVladimir Oltean #endif 9419790cf20SVladimir Oltean } 9429790cf20SVladimir Oltean 9434cfab356SFlorian Fainelli #if IS_ENABLED(CONFIG_NET_DSA) 9444cfab356SFlorian Fainelli static inline int __dsa_netdevice_ops_check(struct net_device *dev) 9454cfab356SFlorian Fainelli { 9464cfab356SFlorian Fainelli int err = -EOPNOTSUPP; 9474cfab356SFlorian Fainelli 9484cfab356SFlorian Fainelli if (!dev->dsa_ptr) 9494cfab356SFlorian Fainelli return err; 9504cfab356SFlorian Fainelli 9514cfab356SFlorian Fainelli if (!dev->dsa_ptr->netdev_ops) 9524cfab356SFlorian Fainelli return err; 9534cfab356SFlorian Fainelli 9544cfab356SFlorian Fainelli return 0; 9554cfab356SFlorian Fainelli } 9564cfab356SFlorian Fainelli 9574cfab356SFlorian Fainelli static inline int dsa_ndo_do_ioctl(struct net_device *dev, struct ifreq *ifr, 9584cfab356SFlorian Fainelli int cmd) 9594cfab356SFlorian Fainelli { 9604cfab356SFlorian Fainelli const struct dsa_netdevice_ops *ops; 9614cfab356SFlorian Fainelli int err; 9624cfab356SFlorian Fainelli 9634cfab356SFlorian Fainelli err = __dsa_netdevice_ops_check(dev); 9644cfab356SFlorian Fainelli if (err) 9654cfab356SFlorian Fainelli return err; 9664cfab356SFlorian Fainelli 9674cfab356SFlorian Fainelli ops = dev->dsa_ptr->netdev_ops; 9684cfab356SFlorian Fainelli 9694cfab356SFlorian Fainelli return ops->ndo_do_ioctl(dev, ifr, cmd); 9704cfab356SFlorian Fainelli } 9714cfab356SFlorian Fainelli #else 9724cfab356SFlorian Fainelli static inline int dsa_ndo_do_ioctl(struct net_device *dev, struct ifreq *ifr, 9734cfab356SFlorian Fainelli int cmd) 9744cfab356SFlorian Fainelli { 9754cfab356SFlorian Fainelli return -EOPNOTSUPP; 9764cfab356SFlorian Fainelli } 9774cfab356SFlorian Fainelli #endif 9784cfab356SFlorian Fainelli 97983c0afaeSAndrew Lunn void dsa_unregister_switch(struct dsa_switch *ds); 98023c9ee49SVivien Didelot int dsa_register_switch(struct dsa_switch *ds); 9813b7bc1f0SVladimir Oltean struct dsa_switch *dsa_switch_find(int tree_index, int sw_index); 982ea825e70SFlorian Fainelli #ifdef CONFIG_PM_SLEEP 983ea825e70SFlorian Fainelli int dsa_switch_suspend(struct dsa_switch *ds); 984ea825e70SFlorian Fainelli int dsa_switch_resume(struct dsa_switch *ds); 985ea825e70SFlorian Fainelli #else 986ea825e70SFlorian Fainelli static inline int dsa_switch_suspend(struct dsa_switch *ds) 987ea825e70SFlorian Fainelli { 988ea825e70SFlorian Fainelli return 0; 989ea825e70SFlorian Fainelli } 990ea825e70SFlorian Fainelli static inline int dsa_switch_resume(struct dsa_switch *ds) 991ea825e70SFlorian Fainelli { 992ea825e70SFlorian Fainelli return 0; 993ea825e70SFlorian Fainelli } 994ea825e70SFlorian Fainelli #endif /* CONFIG_PM_SLEEP */ 995ea825e70SFlorian Fainelli 99660724d4bSFlorian Fainelli #if IS_ENABLED(CONFIG_NET_DSA) 997a5e3c9baSVladimir Oltean bool dsa_slave_dev_check(const struct net_device *dev); 99860724d4bSFlorian Fainelli #else 999a5e3c9baSVladimir Oltean static inline bool dsa_slave_dev_check(const struct net_device *dev) 1000a5e3c9baSVladimir Oltean { 1001a5e3c9baSVladimir Oltean return false; 1002a5e3c9baSVladimir Oltean } 100360724d4bSFlorian Fainelli #endif 100460724d4bSFlorian Fainelli 100597a69a0dSVladimir Oltean netdev_tx_t dsa_enqueue_skb(struct sk_buff *skb, struct net_device *dev); 1006cf963573SFlorian Fainelli int dsa_port_get_phy_strings(struct dsa_port *dp, uint8_t *data); 1007cf963573SFlorian Fainelli int dsa_port_get_ethtool_phy_stats(struct dsa_port *dp, uint64_t *data); 1008cf963573SFlorian Fainelli int dsa_port_get_phy_sset_count(struct dsa_port *dp); 100911d8f3ddSFlorian Fainelli void dsa_port_phylink_mac_change(struct dsa_switch *ds, int port, bool up); 1010cf963573SFlorian Fainelli 1011d3b8c049SAndrew Lunn struct dsa_tag_driver { 1012d3b8c049SAndrew Lunn const struct dsa_device_ops *ops; 1013d3b8c049SAndrew Lunn struct list_head list; 1014d3b8c049SAndrew Lunn struct module *owner; 1015d3b8c049SAndrew Lunn }; 1016d3b8c049SAndrew Lunn 1017d3b8c049SAndrew Lunn void dsa_tag_drivers_register(struct dsa_tag_driver *dsa_tag_driver_array[], 1018d3b8c049SAndrew Lunn unsigned int count, 1019d3b8c049SAndrew Lunn struct module *owner); 1020d3b8c049SAndrew Lunn void dsa_tag_drivers_unregister(struct dsa_tag_driver *dsa_tag_driver_array[], 1021d3b8c049SAndrew Lunn unsigned int count); 1022d3b8c049SAndrew Lunn 1023d3b8c049SAndrew Lunn #define dsa_tag_driver_module_drivers(__dsa_tag_drivers_array, __count) \ 1024d3b8c049SAndrew Lunn static int __init dsa_tag_driver_module_init(void) \ 1025d3b8c049SAndrew Lunn { \ 1026d3b8c049SAndrew Lunn dsa_tag_drivers_register(__dsa_tag_drivers_array, __count, \ 1027d3b8c049SAndrew Lunn THIS_MODULE); \ 1028d3b8c049SAndrew Lunn return 0; \ 1029d3b8c049SAndrew Lunn } \ 1030d3b8c049SAndrew Lunn module_init(dsa_tag_driver_module_init); \ 1031d3b8c049SAndrew Lunn \ 1032d3b8c049SAndrew Lunn static void __exit dsa_tag_driver_module_exit(void) \ 1033d3b8c049SAndrew Lunn { \ 1034d3b8c049SAndrew Lunn dsa_tag_drivers_unregister(__dsa_tag_drivers_array, __count); \ 1035d3b8c049SAndrew Lunn } \ 1036d3b8c049SAndrew Lunn module_exit(dsa_tag_driver_module_exit) 1037d3b8c049SAndrew Lunn 1038d3b8c049SAndrew Lunn /** 1039d3b8c049SAndrew Lunn * module_dsa_tag_drivers() - Helper macro for registering DSA tag 1040d3b8c049SAndrew Lunn * drivers 1041d3b8c049SAndrew Lunn * @__ops_array: Array of tag driver strucutres 1042d3b8c049SAndrew Lunn * 1043d3b8c049SAndrew Lunn * Helper macro for DSA tag drivers which do not do anything special 1044d3b8c049SAndrew Lunn * in module init/exit. Each module may only use this macro once, and 1045d3b8c049SAndrew Lunn * calling it replaces module_init() and module_exit(). 1046d3b8c049SAndrew Lunn */ 1047d3b8c049SAndrew Lunn #define module_dsa_tag_drivers(__ops_array) \ 1048d3b8c049SAndrew Lunn dsa_tag_driver_module_drivers(__ops_array, ARRAY_SIZE(__ops_array)) 1049d3b8c049SAndrew Lunn 1050d3b8c049SAndrew Lunn #define DSA_TAG_DRIVER_NAME(__ops) dsa_tag_driver ## _ ## __ops 1051d3b8c049SAndrew Lunn 1052d3b8c049SAndrew Lunn /* Create a static structure we can build a linked list of dsa_tag 1053d3b8c049SAndrew Lunn * drivers 1054d3b8c049SAndrew Lunn */ 1055d3b8c049SAndrew Lunn #define DSA_TAG_DRIVER(__ops) \ 1056d3b8c049SAndrew Lunn static struct dsa_tag_driver DSA_TAG_DRIVER_NAME(__ops) = { \ 1057d3b8c049SAndrew Lunn .ops = &__ops, \ 1058d3b8c049SAndrew Lunn } 1059d3b8c049SAndrew Lunn 1060d3b8c049SAndrew Lunn /** 1061d3b8c049SAndrew Lunn * module_dsa_tag_driver() - Helper macro for registering a single DSA tag 1062d3b8c049SAndrew Lunn * driver 1063d3b8c049SAndrew Lunn * @__ops: Single tag driver structures 1064d3b8c049SAndrew Lunn * 1065d3b8c049SAndrew Lunn * Helper macro for DSA tag drivers which do not do anything special 1066d3b8c049SAndrew Lunn * in module init/exit. Each module may only use this macro once, and 1067d3b8c049SAndrew Lunn * calling it replaces module_init() and module_exit(). 1068d3b8c049SAndrew Lunn */ 1069d3b8c049SAndrew Lunn #define module_dsa_tag_driver(__ops) \ 1070d3b8c049SAndrew Lunn DSA_TAG_DRIVER(__ops); \ 1071d3b8c049SAndrew Lunn \ 1072d3b8c049SAndrew Lunn static struct dsa_tag_driver *dsa_tag_driver_array[] = { \ 1073d3b8c049SAndrew Lunn &DSA_TAG_DRIVER_NAME(__ops) \ 1074d3b8c049SAndrew Lunn }; \ 1075d3b8c049SAndrew Lunn module_dsa_tag_drivers(dsa_tag_driver_array) 107691da11f8SLennert Buytenhek #endif 1077d3b8c049SAndrew Lunn 1078