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 51*7c4bb540SVladimir Oltean #define DSA_TAG_PROTO_SEVILLE_VALUE 21 520b42f033SAndrew Lunn 53ac7a04c3SFlorian Fainelli enum dsa_tag_protocol { 540b42f033SAndrew Lunn DSA_TAG_PROTO_NONE = DSA_TAG_PROTO_NONE_VALUE, 550b42f033SAndrew Lunn DSA_TAG_PROTO_BRCM = DSA_TAG_PROTO_BRCM_VALUE, 560b42f033SAndrew Lunn DSA_TAG_PROTO_BRCM_PREPEND = DSA_TAG_PROTO_BRCM_PREPEND_VALUE, 570b42f033SAndrew Lunn DSA_TAG_PROTO_DSA = DSA_TAG_PROTO_DSA_VALUE, 580b42f033SAndrew Lunn DSA_TAG_PROTO_EDSA = DSA_TAG_PROTO_EDSA_VALUE, 590b42f033SAndrew Lunn DSA_TAG_PROTO_GSWIP = DSA_TAG_PROTO_GSWIP_VALUE, 600b42f033SAndrew Lunn DSA_TAG_PROTO_KSZ9477 = DSA_TAG_PROTO_KSZ9477_VALUE, 610b42f033SAndrew Lunn DSA_TAG_PROTO_KSZ9893 = DSA_TAG_PROTO_KSZ9893_VALUE, 620b42f033SAndrew Lunn DSA_TAG_PROTO_LAN9303 = DSA_TAG_PROTO_LAN9303_VALUE, 630b42f033SAndrew Lunn DSA_TAG_PROTO_MTK = DSA_TAG_PROTO_MTK_VALUE, 640b42f033SAndrew Lunn DSA_TAG_PROTO_QCA = DSA_TAG_PROTO_QCA_VALUE, 650b42f033SAndrew Lunn DSA_TAG_PROTO_TRAILER = DSA_TAG_PROTO_TRAILER_VALUE, 66f9bbe447SVladimir Oltean DSA_TAG_PROTO_8021Q = DSA_TAG_PROTO_8021Q_VALUE, 67227d07a0SVladimir Oltean DSA_TAG_PROTO_SJA1105 = DSA_TAG_PROTO_SJA1105_VALUE, 68016e43a2STristram Ha DSA_TAG_PROTO_KSZ8795 = DSA_TAG_PROTO_KSZ8795_VALUE, 698dce89aaSVladimir Oltean DSA_TAG_PROTO_OCELOT = DSA_TAG_PROTO_OCELOT_VALUE, 7048fda74fSOleksij Rempel DSA_TAG_PROTO_AR9331 = DSA_TAG_PROTO_AR9331_VALUE, 71efd7fe68SLinus Walleij DSA_TAG_PROTO_RTL4_A = DSA_TAG_PROTO_RTL4_A_VALUE, 7201ef09caSKurt Kanzenbach DSA_TAG_PROTO_HELLCREEK = DSA_TAG_PROTO_HELLCREEK_VALUE, 7354a52823SGeorge McCollister DSA_TAG_PROTO_XRS700X = DSA_TAG_PROTO_XRS700X_VALUE, 747c83a7c5SVladimir Oltean DSA_TAG_PROTO_OCELOT_8021Q = DSA_TAG_PROTO_OCELOT_8021Q_VALUE, 75*7c4bb540SVladimir Oltean DSA_TAG_PROTO_SEVILLE = DSA_TAG_PROTO_SEVILLE_VALUE, 76ac7a04c3SFlorian Fainelli }; 775037d532SFlorian Fainelli 785075314eSAlexander Duyck struct packet_type; 7990af1059SBrandon Streiff struct dsa_switch; 803e8a72d1SFlorian Fainelli 8168277a2cSJohn Crispin struct dsa_device_ops { 8268277a2cSJohn Crispin struct sk_buff *(*xmit)(struct sk_buff *skb, struct net_device *dev); 8368277a2cSJohn Crispin struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev, 8489e49506SFlorian Westphal struct packet_type *pt); 852e8cb1b3SVladimir Oltean void (*flow_dissect)(const struct sk_buff *skb, __be16 *proto, 86598a9680SJohn Crispin int *offset); 87cc1939e4SVladimir Oltean /* Used to determine which traffic should match the DSA filter in 88cc1939e4SVladimir Oltean * eth_type_trans, and which, if any, should bypass it and be processed 89cc1939e4SVladimir Oltean * as regular on the master net device. 90cc1939e4SVladimir Oltean */ 91cc1939e4SVladimir Oltean bool (*filter)(const struct sk_buff *skb, struct net_device *dev); 92a5dd3087SAndrew Lunn unsigned int overhead; 93875138f8SAndrew Lunn const char *name; 94056eed2fSAndrew Lunn enum dsa_tag_protocol proto; 95c3975400SVladimir Oltean /* Some tagging protocols either mangle or shift the destination MAC 96c3975400SVladimir Oltean * address, in which case the DSA master would drop packets on ingress 97c3975400SVladimir Oltean * if what it understands out of the destination MAC address is not in 98c3975400SVladimir Oltean * its RX filter. 99c3975400SVladimir Oltean */ 100c3975400SVladimir Oltean bool promisc_on_master; 1017a6ffe76SVladimir Oltean bool tail_tag; 10268277a2cSJohn Crispin }; 10368277a2cSJohn Crispin 1044cfab356SFlorian Fainelli /* This structure defines the control interfaces that are overlayed by the 1054cfab356SFlorian Fainelli * DSA layer on top of the DSA CPU/management net_device instance. This is 1064cfab356SFlorian Fainelli * used by the core net_device layer while calling various net_device_ops 1074cfab356SFlorian Fainelli * function pointers. 1084cfab356SFlorian Fainelli */ 1094cfab356SFlorian Fainelli struct dsa_netdevice_ops { 1104cfab356SFlorian Fainelli int (*ndo_do_ioctl)(struct net_device *dev, struct ifreq *ifr, 1114cfab356SFlorian Fainelli int cmd); 1124cfab356SFlorian Fainelli }; 1134cfab356SFlorian Fainelli 1140b42f033SAndrew Lunn #define DSA_TAG_DRIVER_ALIAS "dsa_tag-" 1150b42f033SAndrew Lunn #define MODULE_ALIAS_DSA_TAG_DRIVER(__proto) \ 1160b42f033SAndrew Lunn MODULE_ALIAS(DSA_TAG_DRIVER_ALIAS __stringify(__proto##_VALUE)) 1170b42f033SAndrew Lunn 118b68b0dd0SVladimir Oltean struct dsa_skb_cb { 119b68b0dd0SVladimir Oltean struct sk_buff *clone; 120b68b0dd0SVladimir Oltean }; 121b68b0dd0SVladimir Oltean 122b68b0dd0SVladimir Oltean struct __dsa_skb_cb { 123b68b0dd0SVladimir Oltean struct dsa_skb_cb cb; 124b68b0dd0SVladimir Oltean u8 priv[48 - sizeof(struct dsa_skb_cb)]; 125b68b0dd0SVladimir Oltean }; 126b68b0dd0SVladimir Oltean 127b68b0dd0SVladimir Oltean #define DSA_SKB_CB(skb) ((struct dsa_skb_cb *)((skb)->cb)) 128b68b0dd0SVladimir Oltean 129b68b0dd0SVladimir Oltean #define DSA_SKB_CB_PRIV(skb) \ 130b68b0dd0SVladimir Oltean ((void *)(skb)->cb + offsetof(struct __dsa_skb_cb, priv)) 131b68b0dd0SVladimir Oltean 132cf50dcc2SBen Hutchings struct dsa_switch_tree { 13383c0afaeSAndrew Lunn struct list_head list; 13483c0afaeSAndrew Lunn 135f515f192SVivien Didelot /* Notifier chain for switch-wide events */ 136f515f192SVivien Didelot struct raw_notifier_head nh; 137f515f192SVivien Didelot 13883c0afaeSAndrew Lunn /* Tree identifier */ 13949463b7fSVivien Didelot unsigned int index; 14083c0afaeSAndrew Lunn 14183c0afaeSAndrew Lunn /* Number of switches attached to this tree */ 14283c0afaeSAndrew Lunn struct kref refcount; 14383c0afaeSAndrew Lunn 14483c0afaeSAndrew Lunn /* Has this tree been applied to the hardware? */ 145ec15dd42SVivien Didelot bool setup; 14683c0afaeSAndrew Lunn 147357f203bSVladimir Oltean /* Tagging protocol operations */ 148357f203bSVladimir Oltean const struct dsa_device_ops *tag_ops; 149357f203bSVladimir Oltean 150cf50dcc2SBen Hutchings /* 151cf50dcc2SBen Hutchings * Configuration data for the platform device that owns 152cf50dcc2SBen Hutchings * this dsa switch tree instance. 153cf50dcc2SBen Hutchings */ 154cf50dcc2SBen Hutchings struct dsa_platform_data *pd; 155cf85d08fSLennert Buytenhek 156ab8ccae1SVivien Didelot /* List of switch ports */ 157ab8ccae1SVivien Didelot struct list_head ports; 158ab8ccae1SVivien Didelot 159c5f51765SVivien Didelot /* List of DSA links composing the routing table */ 160c5f51765SVivien Didelot struct list_head rtable; 161058102a6STobias Waldekranz 162058102a6STobias Waldekranz /* Maps offloaded LAG netdevs to a zero-based linear ID for 163058102a6STobias Waldekranz * drivers that need it. 164058102a6STobias Waldekranz */ 165058102a6STobias Waldekranz struct net_device **lags; 166058102a6STobias Waldekranz unsigned int lags_len; 167cf50dcc2SBen Hutchings }; 168cf50dcc2SBen Hutchings 169058102a6STobias Waldekranz #define dsa_lags_foreach_id(_id, _dst) \ 170058102a6STobias Waldekranz for ((_id) = 0; (_id) < (_dst)->lags_len; (_id)++) \ 171058102a6STobias Waldekranz if ((_dst)->lags[(_id)]) 172058102a6STobias Waldekranz 173058102a6STobias Waldekranz #define dsa_lag_foreach_port(_dp, _dst, _lag) \ 174058102a6STobias Waldekranz list_for_each_entry((_dp), &(_dst)->ports, list) \ 175058102a6STobias Waldekranz if ((_dp)->lag_dev == (_lag)) 176058102a6STobias Waldekranz 17718596f50SGeorge McCollister #define dsa_hsr_foreach_port(_dp, _ds, _hsr) \ 17818596f50SGeorge McCollister list_for_each_entry((_dp), &(_ds)->dst->ports, list) \ 17918596f50SGeorge McCollister if ((_dp)->ds == (_ds) && (_dp)->hsr_dev == (_hsr)) 18018596f50SGeorge McCollister 181058102a6STobias Waldekranz static inline struct net_device *dsa_lag_dev(struct dsa_switch_tree *dst, 182058102a6STobias Waldekranz unsigned int id) 183058102a6STobias Waldekranz { 184058102a6STobias Waldekranz return dst->lags[id]; 185058102a6STobias Waldekranz } 186058102a6STobias Waldekranz 187058102a6STobias Waldekranz static inline int dsa_lag_id(struct dsa_switch_tree *dst, 188058102a6STobias Waldekranz struct net_device *lag) 189058102a6STobias Waldekranz { 190058102a6STobias Waldekranz unsigned int id; 191058102a6STobias Waldekranz 192058102a6STobias Waldekranz dsa_lags_foreach_id(id, dst) { 193058102a6STobias Waldekranz if (dsa_lag_dev(dst, id) == lag) 194058102a6STobias Waldekranz return id; 195058102a6STobias Waldekranz } 196058102a6STobias Waldekranz 197058102a6STobias Waldekranz return -ENODEV; 198058102a6STobias Waldekranz } 199058102a6STobias Waldekranz 20034297176SVladimir Oltean /* TC matchall action types */ 201f50f2127SFlorian Fainelli enum dsa_port_mall_action_type { 202f50f2127SFlorian Fainelli DSA_PORT_MALL_MIRROR, 20334297176SVladimir Oltean DSA_PORT_MALL_POLICER, 204f50f2127SFlorian Fainelli }; 205f50f2127SFlorian Fainelli 206f50f2127SFlorian Fainelli /* TC mirroring entry */ 207f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry { 208f50f2127SFlorian Fainelli u8 to_local_port; 209f50f2127SFlorian Fainelli bool ingress; 210f50f2127SFlorian Fainelli }; 211f50f2127SFlorian Fainelli 21234297176SVladimir Oltean /* TC port policer entry */ 21334297176SVladimir Oltean struct dsa_mall_policer_tc_entry { 2145f035af7SPo Liu u32 burst; 21534297176SVladimir Oltean u64 rate_bytes_per_sec; 21634297176SVladimir Oltean }; 21734297176SVladimir Oltean 218f50f2127SFlorian Fainelli /* TC matchall entry */ 219f50f2127SFlorian Fainelli struct dsa_mall_tc_entry { 220f50f2127SFlorian Fainelli struct list_head list; 221f50f2127SFlorian Fainelli unsigned long cookie; 222f50f2127SFlorian Fainelli enum dsa_port_mall_action_type type; 223f50f2127SFlorian Fainelli union { 224f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry mirror; 22534297176SVladimir Oltean struct dsa_mall_policer_tc_entry policer; 226f50f2127SFlorian Fainelli }; 227f50f2127SFlorian Fainelli }; 228f50f2127SFlorian Fainelli 229f50f2127SFlorian Fainelli 230c8b09808SAndrew Lunn struct dsa_port { 231f8b8b1cdSVivien Didelot /* A CPU port is physically connected to a master device. 232f8b8b1cdSVivien Didelot * A user port exposed to userspace has a slave device. 233f8b8b1cdSVivien Didelot */ 234f8b8b1cdSVivien Didelot union { 235f8b8b1cdSVivien Didelot struct net_device *master; 236f8b8b1cdSVivien Didelot struct net_device *slave; 237f8b8b1cdSVivien Didelot }; 238f8b8b1cdSVivien Didelot 239357f203bSVladimir Oltean /* Copy of the tagging protocol operations, for quicker access 240357f203bSVladimir Oltean * in the data path. Valid only for the CPU ports. 241357f203bSVladimir Oltean */ 24215240248SVivien Didelot const struct dsa_device_ops *tag_ops; 24315240248SVivien Didelot 2443e41f93bSVivien Didelot /* Copies for faster access in master receive hot path */ 2453e41f93bSVivien Didelot struct dsa_switch_tree *dst; 2463e41f93bSVivien Didelot struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev, 2473e41f93bSVivien Didelot struct packet_type *pt); 248cc1939e4SVladimir Oltean bool (*filter)(const struct sk_buff *skb, struct net_device *dev); 2493e41f93bSVivien Didelot 250057cad2cSVivien Didelot enum { 251057cad2cSVivien Didelot DSA_PORT_TYPE_UNUSED = 0, 252057cad2cSVivien Didelot DSA_PORT_TYPE_CPU, 253057cad2cSVivien Didelot DSA_PORT_TYPE_DSA, 254057cad2cSVivien Didelot DSA_PORT_TYPE_USER, 255057cad2cSVivien Didelot } type; 256057cad2cSVivien Didelot 257818be848SVivien Didelot struct dsa_switch *ds; 258818be848SVivien Didelot unsigned int index; 25971e0bbdeSFlorian Fainelli const char *name; 26068b2d4a8SVivien Didelot struct dsa_port *cpu_dp; 261a2c7023fSXiaofei Shen const char *mac; 262189b0d93SAndrew Lunn struct device_node *dn; 26334a79f63SVivien Didelot unsigned int ageing_time; 26433162e9aSVladimir Oltean bool vlan_filtering; 265732f794cSVivien Didelot u8 stp_state; 266a5e9a02eSVivien Didelot struct net_device *bridge_dev; 26796567d5dSAndrew Lunn struct devlink_port devlink_port; 2683122433eSAndrew Lunn bool devlink_port_setup; 269aab9c406SFlorian Fainelli struct phylink *pl; 27044cc27e4SIoana Ciornei struct phylink_config pl_config; 271058102a6STobias Waldekranz struct net_device *lag_dev; 272058102a6STobias Waldekranz bool lag_tx_enabled; 27318596f50SGeorge McCollister struct net_device *hsr_dev; 27497a69a0dSVladimir Oltean 275ab8ccae1SVivien Didelot struct list_head list; 276ab8ccae1SVivien Didelot 27767dbb9d4SFlorian Fainelli /* 278c362beb0SVladimir Oltean * Give the switch driver somewhere to hang its per-port private data 279c362beb0SVladimir Oltean * structures (accessible from the tagger). 280c362beb0SVladimir Oltean */ 281c362beb0SVladimir Oltean void *priv; 282c362beb0SVladimir Oltean 283c362beb0SVladimir Oltean /* 28467dbb9d4SFlorian Fainelli * Original copy of the master netdev ethtool_ops 28567dbb9d4SFlorian Fainelli */ 28667dbb9d4SFlorian Fainelli const struct ethtool_ops *orig_ethtool_ops; 287da7b9e9bSFlorian Fainelli 288da7b9e9bSFlorian Fainelli /* 289da7b9e9bSFlorian Fainelli * Original copy of the master netdev net_device_ops 290da7b9e9bSFlorian Fainelli */ 2914cfab356SFlorian Fainelli const struct dsa_netdevice_ops *netdev_ops; 292fb35c60cSVivien Didelot 293fb35c60cSVivien Didelot bool setup; 294c8b09808SAndrew Lunn }; 295c8b09808SAndrew Lunn 296c5f51765SVivien Didelot /* TODO: ideally DSA ports would have a single dp->link_dp member, 297c5f51765SVivien Didelot * and no dst->rtable nor this struct dsa_link would be needed, 298c5f51765SVivien Didelot * but this would require some more complex tree walking, 299c5f51765SVivien Didelot * so keep it stupid at the moment and list them all. 300c5f51765SVivien Didelot */ 301c5f51765SVivien Didelot struct dsa_link { 302c5f51765SVivien Didelot struct dsa_port *dp; 303c5f51765SVivien Didelot struct dsa_port *link_dp; 304c5f51765SVivien Didelot struct list_head list; 305c5f51765SVivien Didelot }; 306c5f51765SVivien Didelot 307c8f0b869SBen Hutchings struct dsa_switch { 308fb35c60cSVivien Didelot bool setup; 309fb35c60cSVivien Didelot 310c33063d6SAndrew Lunn struct device *dev; 311c33063d6SAndrew Lunn 312c8f0b869SBen Hutchings /* 313c8f0b869SBen Hutchings * Parent switch tree, and switch index. 314c8f0b869SBen Hutchings */ 315c8f0b869SBen Hutchings struct dsa_switch_tree *dst; 31699feaafcSVivien Didelot unsigned int index; 317c8f0b869SBen Hutchings 318f515f192SVivien Didelot /* Listener for switch fabric events */ 319f515f192SVivien Didelot struct notifier_block nb; 320f515f192SVivien Didelot 321c8f0b869SBen Hutchings /* 3227543a6d5SAndrew Lunn * Give the switch driver somewhere to hang its private data 3237543a6d5SAndrew Lunn * structure. 3247543a6d5SAndrew Lunn */ 3257543a6d5SAndrew Lunn void *priv; 3267543a6d5SAndrew Lunn 3277543a6d5SAndrew Lunn /* 328c8f0b869SBen Hutchings * Configuration data for this switch. 329c8f0b869SBen Hutchings */ 330ff04955cSAndrew Lunn struct dsa_chip_data *cd; 331c8f0b869SBen Hutchings 332c8f0b869SBen Hutchings /* 3339d490b4eSVivien Didelot * The switch operations. 334c8f0b869SBen Hutchings */ 335a82f67afSFlorian Fainelli const struct dsa_switch_ops *ops; 336c8f0b869SBen Hutchings 33766472fc0SAndrew Lunn /* 338c8f0b869SBen Hutchings * Slave mii_bus and devices for the individual ports. 339c8f0b869SBen Hutchings */ 3400d8bcdd3SFlorian Fainelli u32 phys_mii_mask; 341c8f0b869SBen Hutchings struct mii_bus *slave_mii_bus; 342a0c02161SVivien Didelot 3430f3da6afSVivien Didelot /* Ageing Time limits in msecs */ 3440f3da6afSVivien Didelot unsigned int ageing_time_min; 3450f3da6afSVivien Didelot unsigned int ageing_time_max; 3460f3da6afSVivien Didelot 34796567d5dSAndrew Lunn /* devlink used to represent this switch device */ 34896567d5dSAndrew Lunn struct devlink *devlink; 34996567d5dSAndrew Lunn 35055199df6SFlorian Fainelli /* Number of switch port queues */ 35155199df6SFlorian Fainelli unsigned int num_tx_queues; 35255199df6SFlorian Fainelli 3538f5d16f6SVladimir Oltean /* Disallow bridge core from requesting different VLAN awareness 3548f5d16f6SVladimir Oltean * settings on ports if not hardware-supported 3558f5d16f6SVladimir Oltean */ 3568f5d16f6SVladimir Oltean bool vlan_filtering_is_global; 3578f5d16f6SVladimir Oltean 35854a0ed0dSRussell King /* Pass .port_vlan_add and .port_vlan_del to drivers even for bridges 35954a0ed0dSRussell King * that have vlan_filtering=0. All drivers should ideally set this (and 36054a0ed0dSRussell King * then the option would get removed), but it is unknown whether this 36154a0ed0dSRussell King * would break things or not. 36254a0ed0dSRussell King */ 36354a0ed0dSRussell King bool configure_vlan_while_not_filtering; 36454a0ed0dSRussell King 3651dc0408cSFlorian Fainelli /* If the switch driver always programs the CPU port as egress tagged 3661dc0408cSFlorian Fainelli * despite the VLAN configuration indicating otherwise, then setting 3671dc0408cSFlorian Fainelli * @untag_bridge_pvid will force the DSA receive path to pop the bridge's 3681dc0408cSFlorian Fainelli * default_pvid VLAN tagged frames to offer a consistent behavior 3691dc0408cSFlorian Fainelli * between a vlan_filtering=0 and vlan_filtering=1 bridge device. 3701dc0408cSFlorian Fainelli */ 3711dc0408cSFlorian Fainelli bool untag_bridge_pvid; 3721dc0408cSFlorian Fainelli 373d5f19486SVladimir Oltean /* Let DSA manage the FDB entries towards the CPU, based on the 374d5f19486SVladimir Oltean * software bridge database. 375d5f19486SVladimir Oltean */ 376d5f19486SVladimir Oltean bool assisted_learning_on_cpu_port; 377d5f19486SVladimir Oltean 37814574676SVladimir Oltean /* In case vlan_filtering_is_global is set, the VLAN awareness state 37914574676SVladimir Oltean * should be retrieved from here and not from the per-port settings. 38014574676SVladimir Oltean */ 38114574676SVladimir Oltean bool vlan_filtering; 38214574676SVladimir Oltean 383787cac3fSVladimir Oltean /* MAC PCS does not provide link state change interrupt, and requires 384787cac3fSVladimir Oltean * polling. Flag passed on to PHYLINK. 385787cac3fSVladimir Oltean */ 386787cac3fSVladimir Oltean bool pcs_poll; 387787cac3fSVladimir Oltean 388bff33f7eSVladimir Oltean /* For switches that only have the MRU configurable. To ensure the 389bff33f7eSVladimir Oltean * configured MTU is not exceeded, normalization of MRU on all bridged 390bff33f7eSVladimir Oltean * interfaces is needed. 391bff33f7eSVladimir Oltean */ 392bff33f7eSVladimir Oltean bool mtu_enforcement_ingress; 393bff33f7eSVladimir Oltean 394058102a6STobias Waldekranz /* Drivers that benefit from having an ID associated with each 395058102a6STobias Waldekranz * offloaded LAG should set this to the maximum number of 396058102a6STobias Waldekranz * supported IDs. DSA will then maintain a mapping of _at 397058102a6STobias Waldekranz * least_ these many IDs, accessible to drivers via 398058102a6STobias Waldekranz * dsa_lag_id(). 399058102a6STobias Waldekranz */ 400058102a6STobias Waldekranz unsigned int num_lag_ids; 401058102a6STobias Waldekranz 402a0c02161SVivien Didelot size_t num_ports; 403c8f0b869SBen Hutchings }; 404c8f0b869SBen Hutchings 40568bb8ea8SVivien Didelot static inline struct dsa_port *dsa_to_port(struct dsa_switch *ds, int p) 406c38c5a66SVivien Didelot { 407b96ddf25SVivien Didelot struct dsa_switch_tree *dst = ds->dst; 408d607525bSVivien Didelot struct dsa_port *dp; 409b96ddf25SVivien Didelot 410b96ddf25SVivien Didelot list_for_each_entry(dp, &dst->ports, list) 411b96ddf25SVivien Didelot if (dp->ds == ds && dp->index == p) 412b96ddf25SVivien Didelot return dp; 413d607525bSVivien Didelot 414d607525bSVivien Didelot return NULL; 415c38c5a66SVivien Didelot } 416c38c5a66SVivien Didelot 417bff7b688SVivien Didelot static inline bool dsa_is_unused_port(struct dsa_switch *ds, int p) 418bff7b688SVivien Didelot { 419c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_UNUSED; 420bff7b688SVivien Didelot } 421bff7b688SVivien Didelot 422c8f0b869SBen Hutchings static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p) 423c8f0b869SBen Hutchings { 424c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_CPU; 425c8f0b869SBen Hutchings } 426c8f0b869SBen Hutchings 42760045cbfSAndrew Lunn static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p) 42860045cbfSAndrew Lunn { 429c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_DSA; 43060045cbfSAndrew Lunn } 43160045cbfSAndrew Lunn 4322b3e9891SVivien Didelot static inline bool dsa_is_user_port(struct dsa_switch *ds, int p) 4336cd456f3SVivien Didelot { 434c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_USER; 4356cd456f3SVivien Didelot } 4366cd456f3SVivien Didelot 43702bc6e54SVivien Didelot static inline u32 dsa_user_ports(struct dsa_switch *ds) 43802bc6e54SVivien Didelot { 439c38c5a66SVivien Didelot u32 mask = 0; 440c38c5a66SVivien Didelot int p; 44102bc6e54SVivien Didelot 442c38c5a66SVivien Didelot for (p = 0; p < ds->num_ports; p++) 443c38c5a66SVivien Didelot if (dsa_is_user_port(ds, p)) 444c38c5a66SVivien Didelot mask |= BIT(p); 445c38c5a66SVivien Didelot 446c38c5a66SVivien Didelot return mask; 447c8652c83SVivien Didelot } 448c8652c83SVivien Didelot 449c5f51765SVivien Didelot /* Return the local port used to reach an arbitrary switch device */ 450c5f51765SVivien Didelot static inline unsigned int dsa_routing_port(struct dsa_switch *ds, int device) 451c5f51765SVivien Didelot { 452c5f51765SVivien Didelot struct dsa_switch_tree *dst = ds->dst; 453c5f51765SVivien Didelot struct dsa_link *dl; 454c5f51765SVivien Didelot 455c5f51765SVivien Didelot list_for_each_entry(dl, &dst->rtable, list) 456c5f51765SVivien Didelot if (dl->dp->ds == ds && dl->link_dp->ds->index == device) 457c5f51765SVivien Didelot return dl->dp->index; 458c5f51765SVivien Didelot 459c5f51765SVivien Didelot return ds->num_ports; 460c5f51765SVivien Didelot } 461c5f51765SVivien Didelot 4623b8fac5dSVivien Didelot /* Return the local port used to reach an arbitrary switch port */ 4633b8fac5dSVivien Didelot static inline unsigned int dsa_towards_port(struct dsa_switch *ds, int device, 4643b8fac5dSVivien Didelot int port) 4653b8fac5dSVivien Didelot { 4663b8fac5dSVivien Didelot if (device == ds->index) 4673b8fac5dSVivien Didelot return port; 4683b8fac5dSVivien Didelot else 469c5f51765SVivien Didelot return dsa_routing_port(ds, device); 4703b8fac5dSVivien Didelot } 4713b8fac5dSVivien Didelot 4723b8fac5dSVivien Didelot /* Return the local port used to reach the dedicated CPU port */ 47307073c79SVivien Didelot static inline unsigned int dsa_upstream_port(struct dsa_switch *ds, int port) 474c8f0b869SBen Hutchings { 47507073c79SVivien Didelot const struct dsa_port *dp = dsa_to_port(ds, port); 47607073c79SVivien Didelot const struct dsa_port *cpu_dp = dp->cpu_dp; 47707073c79SVivien Didelot 47807073c79SVivien Didelot if (!cpu_dp) 47907073c79SVivien Didelot return port; 480c8f0b869SBen Hutchings 4813b8fac5dSVivien Didelot return dsa_towards_port(ds, cpu_dp->ds->index, cpu_dp->index); 482c8f0b869SBen Hutchings } 483c8f0b869SBen Hutchings 484cf2d45f5SVladimir Oltean static inline bool dsa_port_is_vlan_filtering(const struct dsa_port *dp) 485cf2d45f5SVladimir Oltean { 486cf2d45f5SVladimir Oltean const struct dsa_switch *ds = dp->ds; 487cf2d45f5SVladimir Oltean 488cf2d45f5SVladimir Oltean if (ds->vlan_filtering_is_global) 489cf2d45f5SVladimir Oltean return ds->vlan_filtering; 490cf2d45f5SVladimir Oltean else 491cf2d45f5SVladimir Oltean return dp->vlan_filtering; 492cf2d45f5SVladimir Oltean } 493cf2d45f5SVladimir Oltean 4942bedde1aSArkadi Sharshevsky typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid, 4952bedde1aSArkadi Sharshevsky bool is_static, void *data); 4969d490b4eSVivien Didelot struct dsa_switch_ops { 49753da0ebaSVladimir Oltean /* 49853da0ebaSVladimir Oltean * Tagging protocol helpers called for the CPU ports and DSA links. 49953da0ebaSVladimir Oltean * @get_tag_protocol retrieves the initial tagging protocol and is 50053da0ebaSVladimir Oltean * mandatory. Switches which can operate using multiple tagging 50153da0ebaSVladimir Oltean * protocols should implement @change_tag_protocol and report in 50253da0ebaSVladimir Oltean * @get_tag_protocol the tagger in current use. 50353da0ebaSVladimir Oltean */ 5045ed4e3ebSFlorian Fainelli enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds, 5054d776482SFlorian Fainelli int port, 5064d776482SFlorian Fainelli enum dsa_tag_protocol mprot); 50753da0ebaSVladimir Oltean int (*change_tag_protocol)(struct dsa_switch *ds, int port, 50853da0ebaSVladimir Oltean enum dsa_tag_protocol proto); 5097b314362SAndrew Lunn 510c8f0b869SBen Hutchings int (*setup)(struct dsa_switch *ds); 5115e3f847aSVladimir Oltean void (*teardown)(struct dsa_switch *ds); 5126819563eSFlorian Fainelli u32 (*get_phy_flags)(struct dsa_switch *ds, int port); 513c8f0b869SBen Hutchings 514c8f0b869SBen Hutchings /* 515c8f0b869SBen Hutchings * Access to the switch's PHY registers. 516c8f0b869SBen Hutchings */ 517c8f0b869SBen Hutchings int (*phy_read)(struct dsa_switch *ds, int port, int regnum); 518c8f0b869SBen Hutchings int (*phy_write)(struct dsa_switch *ds, int port, 519c8f0b869SBen Hutchings int regnum, u16 val); 520c8f0b869SBen Hutchings 521c8f0b869SBen Hutchings /* 522ec9436baSFlorian Fainelli * Link state adjustment (called from libphy) 523ec9436baSFlorian Fainelli */ 524ec9436baSFlorian Fainelli void (*adjust_link)(struct dsa_switch *ds, int port, 525ec9436baSFlorian Fainelli struct phy_device *phydev); 526ce31b31cSFlorian Fainelli void (*fixed_link_update)(struct dsa_switch *ds, int port, 527ce31b31cSFlorian Fainelli struct fixed_phy_status *st); 528ec9436baSFlorian Fainelli 529ec9436baSFlorian Fainelli /* 53011d8f3ddSFlorian Fainelli * PHYLINK integration 53111d8f3ddSFlorian Fainelli */ 53211d8f3ddSFlorian Fainelli void (*phylink_validate)(struct dsa_switch *ds, int port, 53311d8f3ddSFlorian Fainelli unsigned long *supported, 53411d8f3ddSFlorian Fainelli struct phylink_link_state *state); 53511d8f3ddSFlorian Fainelli int (*phylink_mac_link_state)(struct dsa_switch *ds, int port, 53611d8f3ddSFlorian Fainelli struct phylink_link_state *state); 53711d8f3ddSFlorian Fainelli void (*phylink_mac_config)(struct dsa_switch *ds, int port, 53811d8f3ddSFlorian Fainelli unsigned int mode, 53911d8f3ddSFlorian Fainelli const struct phylink_link_state *state); 54011d8f3ddSFlorian Fainelli void (*phylink_mac_an_restart)(struct dsa_switch *ds, int port); 54111d8f3ddSFlorian Fainelli void (*phylink_mac_link_down)(struct dsa_switch *ds, int port, 54211d8f3ddSFlorian Fainelli unsigned int mode, 54311d8f3ddSFlorian Fainelli phy_interface_t interface); 54411d8f3ddSFlorian Fainelli void (*phylink_mac_link_up)(struct dsa_switch *ds, int port, 54511d8f3ddSFlorian Fainelli unsigned int mode, 54611d8f3ddSFlorian Fainelli phy_interface_t interface, 5475b502a7bSRussell King struct phy_device *phydev, 5485b502a7bSRussell King int speed, int duplex, 5495b502a7bSRussell King bool tx_pause, bool rx_pause); 55011d8f3ddSFlorian Fainelli void (*phylink_fixed_state)(struct dsa_switch *ds, int port, 55111d8f3ddSFlorian Fainelli struct phylink_link_state *state); 55211d8f3ddSFlorian Fainelli /* 553c2ec5f2eSOleksij Rempel * Port statistics counters. 554c8f0b869SBen Hutchings */ 55589f09048SFlorian Fainelli void (*get_strings)(struct dsa_switch *ds, int port, 55689f09048SFlorian Fainelli u32 stringset, uint8_t *data); 557c8f0b869SBen Hutchings void (*get_ethtool_stats)(struct dsa_switch *ds, 558c8f0b869SBen Hutchings int port, uint64_t *data); 55989f09048SFlorian Fainelli int (*get_sset_count)(struct dsa_switch *ds, int port, int sset); 560cf963573SFlorian Fainelli void (*get_ethtool_phy_stats)(struct dsa_switch *ds, 561cf963573SFlorian Fainelli int port, uint64_t *data); 562c2ec5f2eSOleksij Rempel void (*get_stats64)(struct dsa_switch *ds, int port, 563c2ec5f2eSOleksij Rempel struct rtnl_link_stats64 *s); 56424462549SFlorian Fainelli 56524462549SFlorian Fainelli /* 56619e57c4eSFlorian Fainelli * ethtool Wake-on-LAN 56719e57c4eSFlorian Fainelli */ 56819e57c4eSFlorian Fainelli void (*get_wol)(struct dsa_switch *ds, int port, 56919e57c4eSFlorian Fainelli struct ethtool_wolinfo *w); 57019e57c4eSFlorian Fainelli int (*set_wol)(struct dsa_switch *ds, int port, 57119e57c4eSFlorian Fainelli struct ethtool_wolinfo *w); 57219e57c4eSFlorian Fainelli 57319e57c4eSFlorian Fainelli /* 5740336369dSBrandon Streiff * ethtool timestamp info 5750336369dSBrandon Streiff */ 5760336369dSBrandon Streiff int (*get_ts_info)(struct dsa_switch *ds, int port, 5770336369dSBrandon Streiff struct ethtool_ts_info *ts); 5780336369dSBrandon Streiff 5790336369dSBrandon Streiff /* 58024462549SFlorian Fainelli * Suspend and resume 58124462549SFlorian Fainelli */ 58224462549SFlorian Fainelli int (*suspend)(struct dsa_switch *ds); 58324462549SFlorian Fainelli int (*resume)(struct dsa_switch *ds); 584b2f2af21SFlorian Fainelli 585b2f2af21SFlorian Fainelli /* 586b2f2af21SFlorian Fainelli * Port enable/disable 587b2f2af21SFlorian Fainelli */ 588b2f2af21SFlorian Fainelli int (*port_enable)(struct dsa_switch *ds, int port, 589b2f2af21SFlorian Fainelli struct phy_device *phy); 59075104db0SAndrew Lunn void (*port_disable)(struct dsa_switch *ds, int port); 5917905288fSFlorian Fainelli 5927905288fSFlorian Fainelli /* 59308f50061SVivien Didelot * Port's MAC EEE settings 5947905288fSFlorian Fainelli */ 59508f50061SVivien Didelot int (*set_mac_eee)(struct dsa_switch *ds, int port, 5967905288fSFlorian Fainelli struct ethtool_eee *e); 59708f50061SVivien Didelot int (*get_mac_eee)(struct dsa_switch *ds, int port, 5987905288fSFlorian Fainelli struct ethtool_eee *e); 59951579c3fSGuenter Roeck 6006793abb4SGuenter Roeck /* EEPROM access */ 6016793abb4SGuenter Roeck int (*get_eeprom_len)(struct dsa_switch *ds); 6026793abb4SGuenter Roeck int (*get_eeprom)(struct dsa_switch *ds, 6036793abb4SGuenter Roeck struct ethtool_eeprom *eeprom, u8 *data); 6046793abb4SGuenter Roeck int (*set_eeprom)(struct dsa_switch *ds, 6056793abb4SGuenter Roeck struct ethtool_eeprom *eeprom, u8 *data); 6063d762a0fSGuenter Roeck 6073d762a0fSGuenter Roeck /* 6083d762a0fSGuenter Roeck * Register access. 6093d762a0fSGuenter Roeck */ 6103d762a0fSGuenter Roeck int (*get_regs_len)(struct dsa_switch *ds, int port); 6113d762a0fSGuenter Roeck void (*get_regs)(struct dsa_switch *ds, int port, 6123d762a0fSGuenter Roeck struct ethtool_regs *regs, void *p); 613b73adef6SFlorian Fainelli 614b73adef6SFlorian Fainelli /* 615e358bef7SVladimir Oltean * Upper device tracking. 616e358bef7SVladimir Oltean */ 617e358bef7SVladimir Oltean int (*port_prechangeupper)(struct dsa_switch *ds, int port, 618e358bef7SVladimir Oltean struct netdev_notifier_changeupper_info *info); 619e358bef7SVladimir Oltean 620e358bef7SVladimir Oltean /* 621b73adef6SFlorian Fainelli * Bridge integration 622b73adef6SFlorian Fainelli */ 62334a79f63SVivien Didelot int (*set_ageing_time)(struct dsa_switch *ds, unsigned int msecs); 62471327a4eSVivien Didelot int (*port_bridge_join)(struct dsa_switch *ds, int port, 625a6692754SVivien Didelot struct net_device *bridge); 626f123f2fbSVivien Didelot void (*port_bridge_leave)(struct dsa_switch *ds, int port, 627f123f2fbSVivien Didelot struct net_device *bridge); 62843c44a9fSVivien Didelot void (*port_stp_state_set)(struct dsa_switch *ds, int port, 629b73adef6SFlorian Fainelli u8 state); 630732f794cSVivien Didelot void (*port_fast_age)(struct dsa_switch *ds, int port); 631a8b659e7SVladimir Oltean int (*port_pre_bridge_flags)(struct dsa_switch *ds, int port, 632a8b659e7SVladimir Oltean struct switchdev_brport_flags flags, 633a8b659e7SVladimir Oltean struct netlink_ext_ack *extack); 634a8b659e7SVladimir Oltean int (*port_bridge_flags)(struct dsa_switch *ds, int port, 635a8b659e7SVladimir Oltean struct switchdev_brport_flags flags, 636a8b659e7SVladimir Oltean struct netlink_ext_ack *extack); 637a8b659e7SVladimir Oltean int (*port_set_mrouter)(struct dsa_switch *ds, int port, bool mrouter, 638a8b659e7SVladimir Oltean struct netlink_ext_ack *extack); 6392a778e1bSVivien Didelot 6402a778e1bSVivien Didelot /* 64111149536SVivien Didelot * VLAN support 64211149536SVivien Didelot */ 643fb2dabadSVivien Didelot int (*port_vlan_filtering)(struct dsa_switch *ds, int port, 644bae33f2bSVladimir Oltean bool vlan_filtering); 6451958d581SVladimir Oltean int (*port_vlan_add)(struct dsa_switch *ds, int port, 64680e02360SVivien Didelot const struct switchdev_obj_port_vlan *vlan); 64776e398a6SVivien Didelot int (*port_vlan_del)(struct dsa_switch *ds, int port, 64876e398a6SVivien Didelot const struct switchdev_obj_port_vlan *vlan); 64911149536SVivien Didelot /* 6502a778e1bSVivien Didelot * Forwarding database 6512a778e1bSVivien Didelot */ 6521b6dd556SArkadi Sharshevsky int (*port_fdb_add)(struct dsa_switch *ds, int port, 6536c2c1dcbSArkadi Sharshevsky const unsigned char *addr, u16 vid); 6542a778e1bSVivien Didelot int (*port_fdb_del)(struct dsa_switch *ds, int port, 6556c2c1dcbSArkadi Sharshevsky const unsigned char *addr, u16 vid); 656ea70ba98SVivien Didelot int (*port_fdb_dump)(struct dsa_switch *ds, int port, 6572bedde1aSArkadi Sharshevsky dsa_fdb_dump_cb_t *cb, void *data); 6588df30255SVivien Didelot 6598df30255SVivien Didelot /* 6608df30255SVivien Didelot * Multicast database 6618df30255SVivien Didelot */ 662a52b2da7SVladimir Oltean int (*port_mdb_add)(struct dsa_switch *ds, int port, 6633709aadcSVivien Didelot const struct switchdev_obj_port_mdb *mdb); 6648df30255SVivien Didelot int (*port_mdb_del)(struct dsa_switch *ds, int port, 6658df30255SVivien Didelot const struct switchdev_obj_port_mdb *mdb); 666bf9f2648SFlorian Fainelli /* 667bf9f2648SFlorian Fainelli * RXNFC 668bf9f2648SFlorian Fainelli */ 669bf9f2648SFlorian Fainelli int (*get_rxnfc)(struct dsa_switch *ds, int port, 670bf9f2648SFlorian Fainelli struct ethtool_rxnfc *nfc, u32 *rule_locs); 671bf9f2648SFlorian Fainelli int (*set_rxnfc)(struct dsa_switch *ds, int port, 672bf9f2648SFlorian Fainelli struct ethtool_rxnfc *nfc); 673f50f2127SFlorian Fainelli 674f50f2127SFlorian Fainelli /* 675f50f2127SFlorian Fainelli * TC integration 676f50f2127SFlorian Fainelli */ 677ed11bb1fSVladimir Oltean int (*cls_flower_add)(struct dsa_switch *ds, int port, 678ed11bb1fSVladimir Oltean struct flow_cls_offload *cls, bool ingress); 679ed11bb1fSVladimir Oltean int (*cls_flower_del)(struct dsa_switch *ds, int port, 680ed11bb1fSVladimir Oltean struct flow_cls_offload *cls, bool ingress); 681ed11bb1fSVladimir Oltean int (*cls_flower_stats)(struct dsa_switch *ds, int port, 682ed11bb1fSVladimir Oltean struct flow_cls_offload *cls, bool ingress); 683f50f2127SFlorian Fainelli int (*port_mirror_add)(struct dsa_switch *ds, int port, 684f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry *mirror, 685f50f2127SFlorian Fainelli bool ingress); 686f50f2127SFlorian Fainelli void (*port_mirror_del)(struct dsa_switch *ds, int port, 687f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry *mirror); 68834297176SVladimir Oltean int (*port_policer_add)(struct dsa_switch *ds, int port, 68934297176SVladimir Oltean struct dsa_mall_policer_tc_entry *policer); 69034297176SVladimir Oltean void (*port_policer_del)(struct dsa_switch *ds, int port); 69147d23af2SVladimir Oltean int (*port_setup_tc)(struct dsa_switch *ds, int port, 69247d23af2SVladimir Oltean enum tc_setup_type type, void *type_data); 69340ef2c93SVivien Didelot 69440ef2c93SVivien Didelot /* 69540ef2c93SVivien Didelot * Cross-chip operations 69640ef2c93SVivien Didelot */ 697f66a6a69SVladimir Oltean int (*crosschip_bridge_join)(struct dsa_switch *ds, int tree_index, 698f66a6a69SVladimir Oltean int sw_index, int port, 699f66a6a69SVladimir Oltean struct net_device *br); 700f66a6a69SVladimir Oltean void (*crosschip_bridge_leave)(struct dsa_switch *ds, int tree_index, 701f66a6a69SVladimir Oltean int sw_index, int port, 702f66a6a69SVladimir Oltean struct net_device *br); 703058102a6STobias Waldekranz int (*crosschip_lag_change)(struct dsa_switch *ds, int sw_index, 704058102a6STobias Waldekranz int port); 705058102a6STobias Waldekranz int (*crosschip_lag_join)(struct dsa_switch *ds, int sw_index, 706058102a6STobias Waldekranz int port, struct net_device *lag, 707058102a6STobias Waldekranz struct netdev_lag_upper_info *info); 708058102a6STobias Waldekranz int (*crosschip_lag_leave)(struct dsa_switch *ds, int sw_index, 709058102a6STobias Waldekranz int port, struct net_device *lag); 7100336369dSBrandon Streiff 7110336369dSBrandon Streiff /* 7120336369dSBrandon Streiff * PTP functionality 7130336369dSBrandon Streiff */ 7140336369dSBrandon Streiff int (*port_hwtstamp_get)(struct dsa_switch *ds, int port, 7150336369dSBrandon Streiff struct ifreq *ifr); 7160336369dSBrandon Streiff int (*port_hwtstamp_set)(struct dsa_switch *ds, int port, 7170336369dSBrandon Streiff struct ifreq *ifr); 71890af1059SBrandon Streiff bool (*port_txtstamp)(struct dsa_switch *ds, int port, 71990af1059SBrandon Streiff struct sk_buff *clone, unsigned int type); 72090af1059SBrandon Streiff bool (*port_rxtstamp)(struct dsa_switch *ds, int port, 72190af1059SBrandon Streiff struct sk_buff *skb, unsigned int type); 72297a69a0dSVladimir Oltean 7230f06b855SAndrew Lunn /* Devlink parameters, etc */ 7246b297524SAndrew Lunn int (*devlink_param_get)(struct dsa_switch *ds, u32 id, 7256b297524SAndrew Lunn struct devlink_param_gset_ctx *ctx); 7266b297524SAndrew Lunn int (*devlink_param_set)(struct dsa_switch *ds, u32 id, 7276b297524SAndrew Lunn struct devlink_param_gset_ctx *ctx); 7280f06b855SAndrew Lunn int (*devlink_info_get)(struct dsa_switch *ds, 7290f06b855SAndrew Lunn struct devlink_info_req *req, 7300f06b855SAndrew Lunn struct netlink_ext_ack *extack); 7312a6ef763SVladimir Oltean int (*devlink_sb_pool_get)(struct dsa_switch *ds, 7322a6ef763SVladimir Oltean unsigned int sb_index, u16 pool_index, 7332a6ef763SVladimir Oltean struct devlink_sb_pool_info *pool_info); 7342a6ef763SVladimir Oltean int (*devlink_sb_pool_set)(struct dsa_switch *ds, unsigned int sb_index, 7352a6ef763SVladimir Oltean u16 pool_index, u32 size, 7362a6ef763SVladimir Oltean enum devlink_sb_threshold_type threshold_type, 7372a6ef763SVladimir Oltean struct netlink_ext_ack *extack); 7382a6ef763SVladimir Oltean int (*devlink_sb_port_pool_get)(struct dsa_switch *ds, int port, 7392a6ef763SVladimir Oltean unsigned int sb_index, u16 pool_index, 7402a6ef763SVladimir Oltean u32 *p_threshold); 7412a6ef763SVladimir Oltean int (*devlink_sb_port_pool_set)(struct dsa_switch *ds, int port, 7422a6ef763SVladimir Oltean unsigned int sb_index, u16 pool_index, 7432a6ef763SVladimir Oltean u32 threshold, 7442a6ef763SVladimir Oltean struct netlink_ext_ack *extack); 7452a6ef763SVladimir Oltean int (*devlink_sb_tc_pool_bind_get)(struct dsa_switch *ds, int port, 7462a6ef763SVladimir Oltean unsigned int sb_index, u16 tc_index, 7472a6ef763SVladimir Oltean enum devlink_sb_pool_type pool_type, 7482a6ef763SVladimir Oltean u16 *p_pool_index, u32 *p_threshold); 7492a6ef763SVladimir Oltean int (*devlink_sb_tc_pool_bind_set)(struct dsa_switch *ds, int port, 7502a6ef763SVladimir Oltean unsigned int sb_index, u16 tc_index, 7512a6ef763SVladimir Oltean enum devlink_sb_pool_type pool_type, 7522a6ef763SVladimir Oltean u16 pool_index, u32 threshold, 7532a6ef763SVladimir Oltean struct netlink_ext_ack *extack); 7542a6ef763SVladimir Oltean int (*devlink_sb_occ_snapshot)(struct dsa_switch *ds, 7552a6ef763SVladimir Oltean unsigned int sb_index); 7562a6ef763SVladimir Oltean int (*devlink_sb_occ_max_clear)(struct dsa_switch *ds, 7572a6ef763SVladimir Oltean unsigned int sb_index); 7582a6ef763SVladimir Oltean int (*devlink_sb_occ_port_pool_get)(struct dsa_switch *ds, int port, 7592a6ef763SVladimir Oltean unsigned int sb_index, u16 pool_index, 7602a6ef763SVladimir Oltean u32 *p_cur, u32 *p_max); 7612a6ef763SVladimir Oltean int (*devlink_sb_occ_tc_port_bind_get)(struct dsa_switch *ds, int port, 7622a6ef763SVladimir Oltean unsigned int sb_index, u16 tc_index, 7632a6ef763SVladimir Oltean enum devlink_sb_pool_type pool_type, 7642a6ef763SVladimir Oltean u32 *p_cur, u32 *p_max); 765bfcb8132SVladimir Oltean 766bfcb8132SVladimir Oltean /* 767bfcb8132SVladimir Oltean * MTU change functionality. Switches can also adjust their MRU through 768bfcb8132SVladimir Oltean * this method. By MTU, one understands the SDU (L2 payload) length. 769bfcb8132SVladimir Oltean * If the switch needs to account for the DSA tag on the CPU port, this 770ab88d64aSRandy Dunlap * method needs to do so privately. 771bfcb8132SVladimir Oltean */ 772bfcb8132SVladimir Oltean int (*port_change_mtu)(struct dsa_switch *ds, int port, 773bfcb8132SVladimir Oltean int new_mtu); 774bfcb8132SVladimir Oltean int (*port_max_mtu)(struct dsa_switch *ds, int port); 775058102a6STobias Waldekranz 776058102a6STobias Waldekranz /* 777058102a6STobias Waldekranz * LAG integration 778058102a6STobias Waldekranz */ 779058102a6STobias Waldekranz int (*port_lag_change)(struct dsa_switch *ds, int port); 780058102a6STobias Waldekranz int (*port_lag_join)(struct dsa_switch *ds, int port, 781058102a6STobias Waldekranz struct net_device *lag, 782058102a6STobias Waldekranz struct netdev_lag_upper_info *info); 783058102a6STobias Waldekranz int (*port_lag_leave)(struct dsa_switch *ds, int port, 784058102a6STobias Waldekranz struct net_device *lag); 78518596f50SGeorge McCollister 78618596f50SGeorge McCollister /* 78718596f50SGeorge McCollister * HSR integration 78818596f50SGeorge McCollister */ 78918596f50SGeorge McCollister int (*port_hsr_join)(struct dsa_switch *ds, int port, 79018596f50SGeorge McCollister struct net_device *hsr); 79118596f50SGeorge McCollister int (*port_hsr_leave)(struct dsa_switch *ds, int port, 79218596f50SGeorge McCollister struct net_device *hsr); 7936b297524SAndrew Lunn }; 7946b297524SAndrew Lunn 7956b297524SAndrew Lunn #define DSA_DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes) \ 7966b297524SAndrew Lunn DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, \ 7976b297524SAndrew Lunn dsa_devlink_param_get, dsa_devlink_param_set, NULL) 7986b297524SAndrew Lunn 7996b297524SAndrew Lunn int dsa_devlink_param_get(struct devlink *dl, u32 id, 8006b297524SAndrew Lunn struct devlink_param_gset_ctx *ctx); 8016b297524SAndrew Lunn int dsa_devlink_param_set(struct devlink *dl, u32 id, 8026b297524SAndrew Lunn struct devlink_param_gset_ctx *ctx); 8036b297524SAndrew Lunn int dsa_devlink_params_register(struct dsa_switch *ds, 8046b297524SAndrew Lunn const struct devlink_param *params, 8056b297524SAndrew Lunn size_t params_count); 8066b297524SAndrew Lunn void dsa_devlink_params_unregister(struct dsa_switch *ds, 8076b297524SAndrew Lunn const struct devlink_param *params, 8086b297524SAndrew Lunn size_t params_count); 8095cd73fbdSAndrew Lunn int dsa_devlink_resource_register(struct dsa_switch *ds, 8105cd73fbdSAndrew Lunn const char *resource_name, 8115cd73fbdSAndrew Lunn u64 resource_size, 8125cd73fbdSAndrew Lunn u64 resource_id, 8135cd73fbdSAndrew Lunn u64 parent_resource_id, 8145cd73fbdSAndrew Lunn const struct devlink_resource_size_params *size_params); 8155cd73fbdSAndrew Lunn 8165cd73fbdSAndrew Lunn void dsa_devlink_resources_unregister(struct dsa_switch *ds); 8175cd73fbdSAndrew Lunn 8185cd73fbdSAndrew Lunn void dsa_devlink_resource_occ_get_register(struct dsa_switch *ds, 8195cd73fbdSAndrew Lunn u64 resource_id, 8205cd73fbdSAndrew Lunn devlink_resource_occ_get_t *occ_get, 8215cd73fbdSAndrew Lunn void *occ_get_priv); 8225cd73fbdSAndrew Lunn void dsa_devlink_resource_occ_get_unregister(struct dsa_switch *ds, 8235cd73fbdSAndrew Lunn u64 resource_id); 82497c82c23SAndrew Lunn struct devlink_region * 82597c82c23SAndrew Lunn dsa_devlink_region_create(struct dsa_switch *ds, 82697c82c23SAndrew Lunn const struct devlink_region_ops *ops, 82797c82c23SAndrew Lunn u32 region_max_snapshots, u64 region_size); 82808156ba4SAndrew Lunn struct devlink_region * 82908156ba4SAndrew Lunn dsa_devlink_port_region_create(struct dsa_switch *ds, 83008156ba4SAndrew Lunn int port, 83108156ba4SAndrew Lunn const struct devlink_port_region_ops *ops, 83208156ba4SAndrew Lunn u32 region_max_snapshots, u64 region_size); 83397c82c23SAndrew Lunn void dsa_devlink_region_destroy(struct devlink_region *region); 83497c82c23SAndrew Lunn 835e1eea811SVladimir Oltean struct dsa_port *dsa_port_from_netdev(struct net_device *netdev); 8365cd73fbdSAndrew Lunn 8376b297524SAndrew Lunn struct dsa_devlink_priv { 8386b297524SAndrew Lunn struct dsa_switch *ds; 839c8f0b869SBen Hutchings }; 840c8f0b869SBen Hutchings 841ccc3e6b0SAndrew Lunn static inline struct dsa_switch *dsa_devlink_to_ds(struct devlink *dl) 842ccc3e6b0SAndrew Lunn { 843ccc3e6b0SAndrew Lunn struct dsa_devlink_priv *dl_priv = devlink_priv(dl); 844ccc3e6b0SAndrew Lunn 845ccc3e6b0SAndrew Lunn return dl_priv->ds; 846ccc3e6b0SAndrew Lunn } 847ccc3e6b0SAndrew Lunn 8487d1e2a10SAndrew Lunn static inline 8497d1e2a10SAndrew Lunn struct dsa_switch *dsa_devlink_port_to_ds(struct devlink_port *port) 8507d1e2a10SAndrew Lunn { 8517d1e2a10SAndrew Lunn struct devlink *dl = port->devlink; 8527d1e2a10SAndrew Lunn struct dsa_devlink_priv *dl_priv = devlink_priv(dl); 8537d1e2a10SAndrew Lunn 8547d1e2a10SAndrew Lunn return dl_priv->ds; 8557d1e2a10SAndrew Lunn } 8567d1e2a10SAndrew Lunn 8577d1e2a10SAndrew Lunn static inline int dsa_devlink_port_to_port(struct devlink_port *port) 8587d1e2a10SAndrew Lunn { 8597d1e2a10SAndrew Lunn return port->index; 8607d1e2a10SAndrew Lunn } 8617d1e2a10SAndrew Lunn 862ab3d408dSFlorian Fainelli struct dsa_switch_driver { 863ab3d408dSFlorian Fainelli struct list_head list; 864a82f67afSFlorian Fainelli const struct dsa_switch_ops *ops; 865ab3d408dSFlorian Fainelli }; 866ab3d408dSFlorian Fainelli 86714b89f36SFlorian Fainelli struct net_device *dsa_dev_to_net_device(struct device *dev); 868c8f0b869SBen Hutchings 86973a7ece8SVivien Didelot /* Keep inline for faster access in hot path */ 8709eb8eff0SVladimir Oltean static inline bool netdev_uses_dsa(const struct net_device *dev) 871c6e970a0SAndrew Lunn { 872c6e970a0SAndrew Lunn #if IS_ENABLED(CONFIG_NET_DSA) 873717ffbfbSVivien Didelot return dev->dsa_ptr && dev->dsa_ptr->rcv; 874c6e970a0SAndrew Lunn #endif 875c6e970a0SAndrew Lunn return false; 876c6e970a0SAndrew Lunn } 877c6e970a0SAndrew Lunn 878cc1939e4SVladimir Oltean static inline bool dsa_can_decode(const struct sk_buff *skb, 879cc1939e4SVladimir Oltean struct net_device *dev) 880cc1939e4SVladimir Oltean { 881cc1939e4SVladimir Oltean #if IS_ENABLED(CONFIG_NET_DSA) 882cc1939e4SVladimir Oltean return !dev->dsa_ptr->filter || dev->dsa_ptr->filter(skb, dev); 883cc1939e4SVladimir Oltean #endif 884cc1939e4SVladimir Oltean return false; 885cc1939e4SVladimir Oltean } 886cc1939e4SVladimir Oltean 8879790cf20SVladimir Oltean /* All DSA tags that push the EtherType to the right (basically all except tail 8889790cf20SVladimir Oltean * tags, which don't break dissection) can be treated the same from the 8899790cf20SVladimir Oltean * perspective of the flow dissector. 8909790cf20SVladimir Oltean * 8919790cf20SVladimir Oltean * We need to return: 8929790cf20SVladimir Oltean * - offset: the (B - A) difference between: 8939790cf20SVladimir Oltean * A. the position of the real EtherType and 8949790cf20SVladimir Oltean * B. the current skb->data (aka ETH_HLEN bytes into the frame, aka 2 bytes 8959790cf20SVladimir Oltean * after the normal EtherType was supposed to be) 8969790cf20SVladimir Oltean * The offset in bytes is exactly equal to the tagger overhead (and half of 8979790cf20SVladimir Oltean * that, in __be16 shorts). 8989790cf20SVladimir Oltean * 8999790cf20SVladimir Oltean * - proto: the value of the real EtherType. 9009790cf20SVladimir Oltean */ 9019790cf20SVladimir Oltean static inline void dsa_tag_generic_flow_dissect(const struct sk_buff *skb, 9029790cf20SVladimir Oltean __be16 *proto, int *offset) 9039790cf20SVladimir Oltean { 9049790cf20SVladimir Oltean #if IS_ENABLED(CONFIG_NET_DSA) 9059790cf20SVladimir Oltean const struct dsa_device_ops *ops = skb->dev->dsa_ptr->tag_ops; 9069790cf20SVladimir Oltean int tag_len = ops->overhead; 9079790cf20SVladimir Oltean 9089790cf20SVladimir Oltean *offset = tag_len; 9099790cf20SVladimir Oltean *proto = ((__be16 *)skb->data)[(tag_len / 2) - 1]; 9109790cf20SVladimir Oltean #endif 9119790cf20SVladimir Oltean } 9129790cf20SVladimir Oltean 9134cfab356SFlorian Fainelli #if IS_ENABLED(CONFIG_NET_DSA) 9144cfab356SFlorian Fainelli static inline int __dsa_netdevice_ops_check(struct net_device *dev) 9154cfab356SFlorian Fainelli { 9164cfab356SFlorian Fainelli int err = -EOPNOTSUPP; 9174cfab356SFlorian Fainelli 9184cfab356SFlorian Fainelli if (!dev->dsa_ptr) 9194cfab356SFlorian Fainelli return err; 9204cfab356SFlorian Fainelli 9214cfab356SFlorian Fainelli if (!dev->dsa_ptr->netdev_ops) 9224cfab356SFlorian Fainelli return err; 9234cfab356SFlorian Fainelli 9244cfab356SFlorian Fainelli return 0; 9254cfab356SFlorian Fainelli } 9264cfab356SFlorian Fainelli 9274cfab356SFlorian Fainelli static inline int dsa_ndo_do_ioctl(struct net_device *dev, struct ifreq *ifr, 9284cfab356SFlorian Fainelli int cmd) 9294cfab356SFlorian Fainelli { 9304cfab356SFlorian Fainelli const struct dsa_netdevice_ops *ops; 9314cfab356SFlorian Fainelli int err; 9324cfab356SFlorian Fainelli 9334cfab356SFlorian Fainelli err = __dsa_netdevice_ops_check(dev); 9344cfab356SFlorian Fainelli if (err) 9354cfab356SFlorian Fainelli return err; 9364cfab356SFlorian Fainelli 9374cfab356SFlorian Fainelli ops = dev->dsa_ptr->netdev_ops; 9384cfab356SFlorian Fainelli 9394cfab356SFlorian Fainelli return ops->ndo_do_ioctl(dev, ifr, cmd); 9404cfab356SFlorian Fainelli } 9414cfab356SFlorian Fainelli #else 9424cfab356SFlorian Fainelli static inline int dsa_ndo_do_ioctl(struct net_device *dev, struct ifreq *ifr, 9434cfab356SFlorian Fainelli int cmd) 9444cfab356SFlorian Fainelli { 9454cfab356SFlorian Fainelli return -EOPNOTSUPP; 9464cfab356SFlorian Fainelli } 9474cfab356SFlorian Fainelli #endif 9484cfab356SFlorian Fainelli 94983c0afaeSAndrew Lunn void dsa_unregister_switch(struct dsa_switch *ds); 95023c9ee49SVivien Didelot int dsa_register_switch(struct dsa_switch *ds); 9513b7bc1f0SVladimir Oltean struct dsa_switch *dsa_switch_find(int tree_index, int sw_index); 952ea825e70SFlorian Fainelli #ifdef CONFIG_PM_SLEEP 953ea825e70SFlorian Fainelli int dsa_switch_suspend(struct dsa_switch *ds); 954ea825e70SFlorian Fainelli int dsa_switch_resume(struct dsa_switch *ds); 955ea825e70SFlorian Fainelli #else 956ea825e70SFlorian Fainelli static inline int dsa_switch_suspend(struct dsa_switch *ds) 957ea825e70SFlorian Fainelli { 958ea825e70SFlorian Fainelli return 0; 959ea825e70SFlorian Fainelli } 960ea825e70SFlorian Fainelli static inline int dsa_switch_resume(struct dsa_switch *ds) 961ea825e70SFlorian Fainelli { 962ea825e70SFlorian Fainelli return 0; 963ea825e70SFlorian Fainelli } 964ea825e70SFlorian Fainelli #endif /* CONFIG_PM_SLEEP */ 965ea825e70SFlorian Fainelli 96660724d4bSFlorian Fainelli #if IS_ENABLED(CONFIG_NET_DSA) 967a5e3c9baSVladimir Oltean bool dsa_slave_dev_check(const struct net_device *dev); 96860724d4bSFlorian Fainelli #else 969a5e3c9baSVladimir Oltean static inline bool dsa_slave_dev_check(const struct net_device *dev) 970a5e3c9baSVladimir Oltean { 971a5e3c9baSVladimir Oltean return false; 972a5e3c9baSVladimir Oltean } 97360724d4bSFlorian Fainelli #endif 97460724d4bSFlorian Fainelli 97597a69a0dSVladimir Oltean netdev_tx_t dsa_enqueue_skb(struct sk_buff *skb, struct net_device *dev); 976cf963573SFlorian Fainelli int dsa_port_get_phy_strings(struct dsa_port *dp, uint8_t *data); 977cf963573SFlorian Fainelli int dsa_port_get_ethtool_phy_stats(struct dsa_port *dp, uint64_t *data); 978cf963573SFlorian Fainelli int dsa_port_get_phy_sset_count(struct dsa_port *dp); 97911d8f3ddSFlorian Fainelli void dsa_port_phylink_mac_change(struct dsa_switch *ds, int port, bool up); 980cf963573SFlorian Fainelli 981d3b8c049SAndrew Lunn struct dsa_tag_driver { 982d3b8c049SAndrew Lunn const struct dsa_device_ops *ops; 983d3b8c049SAndrew Lunn struct list_head list; 984d3b8c049SAndrew Lunn struct module *owner; 985d3b8c049SAndrew Lunn }; 986d3b8c049SAndrew Lunn 987d3b8c049SAndrew Lunn void dsa_tag_drivers_register(struct dsa_tag_driver *dsa_tag_driver_array[], 988d3b8c049SAndrew Lunn unsigned int count, 989d3b8c049SAndrew Lunn struct module *owner); 990d3b8c049SAndrew Lunn void dsa_tag_drivers_unregister(struct dsa_tag_driver *dsa_tag_driver_array[], 991d3b8c049SAndrew Lunn unsigned int count); 992d3b8c049SAndrew Lunn 993d3b8c049SAndrew Lunn #define dsa_tag_driver_module_drivers(__dsa_tag_drivers_array, __count) \ 994d3b8c049SAndrew Lunn static int __init dsa_tag_driver_module_init(void) \ 995d3b8c049SAndrew Lunn { \ 996d3b8c049SAndrew Lunn dsa_tag_drivers_register(__dsa_tag_drivers_array, __count, \ 997d3b8c049SAndrew Lunn THIS_MODULE); \ 998d3b8c049SAndrew Lunn return 0; \ 999d3b8c049SAndrew Lunn } \ 1000d3b8c049SAndrew Lunn module_init(dsa_tag_driver_module_init); \ 1001d3b8c049SAndrew Lunn \ 1002d3b8c049SAndrew Lunn static void __exit dsa_tag_driver_module_exit(void) \ 1003d3b8c049SAndrew Lunn { \ 1004d3b8c049SAndrew Lunn dsa_tag_drivers_unregister(__dsa_tag_drivers_array, __count); \ 1005d3b8c049SAndrew Lunn } \ 1006d3b8c049SAndrew Lunn module_exit(dsa_tag_driver_module_exit) 1007d3b8c049SAndrew Lunn 1008d3b8c049SAndrew Lunn /** 1009d3b8c049SAndrew Lunn * module_dsa_tag_drivers() - Helper macro for registering DSA tag 1010d3b8c049SAndrew Lunn * drivers 1011d3b8c049SAndrew Lunn * @__ops_array: Array of tag driver strucutres 1012d3b8c049SAndrew Lunn * 1013d3b8c049SAndrew Lunn * Helper macro for DSA tag drivers which do not do anything special 1014d3b8c049SAndrew Lunn * in module init/exit. Each module may only use this macro once, and 1015d3b8c049SAndrew Lunn * calling it replaces module_init() and module_exit(). 1016d3b8c049SAndrew Lunn */ 1017d3b8c049SAndrew Lunn #define module_dsa_tag_drivers(__ops_array) \ 1018d3b8c049SAndrew Lunn dsa_tag_driver_module_drivers(__ops_array, ARRAY_SIZE(__ops_array)) 1019d3b8c049SAndrew Lunn 1020d3b8c049SAndrew Lunn #define DSA_TAG_DRIVER_NAME(__ops) dsa_tag_driver ## _ ## __ops 1021d3b8c049SAndrew Lunn 1022d3b8c049SAndrew Lunn /* Create a static structure we can build a linked list of dsa_tag 1023d3b8c049SAndrew Lunn * drivers 1024d3b8c049SAndrew Lunn */ 1025d3b8c049SAndrew Lunn #define DSA_TAG_DRIVER(__ops) \ 1026d3b8c049SAndrew Lunn static struct dsa_tag_driver DSA_TAG_DRIVER_NAME(__ops) = { \ 1027d3b8c049SAndrew Lunn .ops = &__ops, \ 1028d3b8c049SAndrew Lunn } 1029d3b8c049SAndrew Lunn 1030d3b8c049SAndrew Lunn /** 1031d3b8c049SAndrew Lunn * module_dsa_tag_driver() - Helper macro for registering a single DSA tag 1032d3b8c049SAndrew Lunn * driver 1033d3b8c049SAndrew Lunn * @__ops: Single tag driver structures 1034d3b8c049SAndrew Lunn * 1035d3b8c049SAndrew Lunn * Helper macro for DSA tag drivers which do not do anything special 1036d3b8c049SAndrew Lunn * in module init/exit. Each module may only use this macro once, and 1037d3b8c049SAndrew Lunn * calling it replaces module_init() and module_exit(). 1038d3b8c049SAndrew Lunn */ 1039d3b8c049SAndrew Lunn #define module_dsa_tag_driver(__ops) \ 1040d3b8c049SAndrew Lunn DSA_TAG_DRIVER(__ops); \ 1041d3b8c049SAndrew Lunn \ 1042d3b8c049SAndrew Lunn static struct dsa_tag_driver *dsa_tag_driver_array[] = { \ 1043d3b8c049SAndrew Lunn &DSA_TAG_DRIVER_NAME(__ops) \ 1044d3b8c049SAndrew Lunn }; \ 1045d3b8c049SAndrew Lunn module_dsa_tag_drivers(dsa_tag_driver_array) 104691da11f8SLennert Buytenhek #endif 1047d3b8c049SAndrew Lunn 1048