191da11f8SLennert Buytenhek /* 291da11f8SLennert Buytenhek * include/net/dsa.h - Driver for Distributed Switch Architecture switch chips 3e84665c9SLennert Buytenhek * Copyright (c) 2008-2009 Marvell Semiconductor 491da11f8SLennert Buytenhek * 591da11f8SLennert Buytenhek * This program is free software; you can redistribute it and/or modify 691da11f8SLennert Buytenhek * it under the terms of the GNU General Public License as published by 791da11f8SLennert Buytenhek * the Free Software Foundation; either version 2 of the License, or 891da11f8SLennert Buytenhek * (at your option) any later version. 991da11f8SLennert Buytenhek */ 1091da11f8SLennert Buytenhek 1191da11f8SLennert Buytenhek #ifndef __LINUX_NET_DSA_H 1291da11f8SLennert Buytenhek #define __LINUX_NET_DSA_H 1391da11f8SLennert Buytenhek 144d56a29fSRussell King #include <linux/if.h> 15ea1f51beSAxel Lin #include <linux/if_ether.h> 16c8f0b869SBen Hutchings #include <linux/list.h> 17f515f192SVivien Didelot #include <linux/notifier.h> 18cf50dcc2SBen Hutchings #include <linux/timer.h> 19cf50dcc2SBen Hutchings #include <linux/workqueue.h> 20fa981d9aSFlorian Fainelli #include <linux/of.h> 21a2820543SFlorian Fainelli #include <linux/ethtool.h> 220336369dSBrandon Streiff #include <linux/net_tstamp.h> 2311d8f3ddSFlorian Fainelli #include <linux/phy.h> 24ecfc9372SFlorian Fainelli #include <linux/platform_data/dsa.h> 2544cc27e4SIoana Ciornei #include <linux/phylink.h> 2696567d5dSAndrew Lunn #include <net/devlink.h> 27f0c24ccfSVivien Didelot #include <net/switchdev.h> 28cf50dcc2SBen Hutchings 29f50f2127SFlorian Fainelli struct tc_action; 304d56a29fSRussell King struct phy_device; 314d56a29fSRussell King struct fixed_phy_status; 3211d8f3ddSFlorian Fainelli struct phylink_link_state; 33f50f2127SFlorian Fainelli 340b42f033SAndrew Lunn #define DSA_TAG_PROTO_NONE_VALUE 0 350b42f033SAndrew Lunn #define DSA_TAG_PROTO_BRCM_VALUE 1 360b42f033SAndrew Lunn #define DSA_TAG_PROTO_BRCM_PREPEND_VALUE 2 370b42f033SAndrew Lunn #define DSA_TAG_PROTO_DSA_VALUE 3 380b42f033SAndrew Lunn #define DSA_TAG_PROTO_EDSA_VALUE 4 390b42f033SAndrew Lunn #define DSA_TAG_PROTO_GSWIP_VALUE 5 400b42f033SAndrew Lunn #define DSA_TAG_PROTO_KSZ9477_VALUE 6 410b42f033SAndrew Lunn #define DSA_TAG_PROTO_KSZ9893_VALUE 7 420b42f033SAndrew Lunn #define DSA_TAG_PROTO_LAN9303_VALUE 8 430b42f033SAndrew Lunn #define DSA_TAG_PROTO_MTK_VALUE 9 440b42f033SAndrew Lunn #define DSA_TAG_PROTO_QCA_VALUE 10 450b42f033SAndrew Lunn #define DSA_TAG_PROTO_TRAILER_VALUE 11 46f9bbe447SVladimir Oltean #define DSA_TAG_PROTO_8021Q_VALUE 12 47227d07a0SVladimir Oltean #define DSA_TAG_PROTO_SJA1105_VALUE 13 480b42f033SAndrew Lunn 49ac7a04c3SFlorian Fainelli enum dsa_tag_protocol { 500b42f033SAndrew Lunn DSA_TAG_PROTO_NONE = DSA_TAG_PROTO_NONE_VALUE, 510b42f033SAndrew Lunn DSA_TAG_PROTO_BRCM = DSA_TAG_PROTO_BRCM_VALUE, 520b42f033SAndrew Lunn DSA_TAG_PROTO_BRCM_PREPEND = DSA_TAG_PROTO_BRCM_PREPEND_VALUE, 530b42f033SAndrew Lunn DSA_TAG_PROTO_DSA = DSA_TAG_PROTO_DSA_VALUE, 540b42f033SAndrew Lunn DSA_TAG_PROTO_EDSA = DSA_TAG_PROTO_EDSA_VALUE, 550b42f033SAndrew Lunn DSA_TAG_PROTO_GSWIP = DSA_TAG_PROTO_GSWIP_VALUE, 560b42f033SAndrew Lunn DSA_TAG_PROTO_KSZ9477 = DSA_TAG_PROTO_KSZ9477_VALUE, 570b42f033SAndrew Lunn DSA_TAG_PROTO_KSZ9893 = DSA_TAG_PROTO_KSZ9893_VALUE, 580b42f033SAndrew Lunn DSA_TAG_PROTO_LAN9303 = DSA_TAG_PROTO_LAN9303_VALUE, 590b42f033SAndrew Lunn DSA_TAG_PROTO_MTK = DSA_TAG_PROTO_MTK_VALUE, 600b42f033SAndrew Lunn DSA_TAG_PROTO_QCA = DSA_TAG_PROTO_QCA_VALUE, 610b42f033SAndrew Lunn DSA_TAG_PROTO_TRAILER = DSA_TAG_PROTO_TRAILER_VALUE, 62f9bbe447SVladimir Oltean DSA_TAG_PROTO_8021Q = DSA_TAG_PROTO_8021Q_VALUE, 63227d07a0SVladimir Oltean DSA_TAG_PROTO_SJA1105 = DSA_TAG_PROTO_SJA1105_VALUE, 64ac7a04c3SFlorian Fainelli }; 655037d532SFlorian Fainelli 665075314eSAlexander Duyck struct packet_type; 6790af1059SBrandon Streiff struct dsa_switch; 683e8a72d1SFlorian Fainelli 6968277a2cSJohn Crispin struct dsa_device_ops { 7068277a2cSJohn Crispin struct sk_buff *(*xmit)(struct sk_buff *skb, struct net_device *dev); 7168277a2cSJohn Crispin struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev, 7289e49506SFlorian Westphal struct packet_type *pt); 73598a9680SJohn Crispin int (*flow_dissect)(const struct sk_buff *skb, __be16 *proto, 74598a9680SJohn Crispin int *offset); 75cc1939e4SVladimir Oltean /* Used to determine which traffic should match the DSA filter in 76cc1939e4SVladimir Oltean * eth_type_trans, and which, if any, should bypass it and be processed 77cc1939e4SVladimir Oltean * as regular on the master net device. 78cc1939e4SVladimir Oltean */ 79cc1939e4SVladimir Oltean bool (*filter)(const struct sk_buff *skb, struct net_device *dev); 80a5dd3087SAndrew Lunn unsigned int overhead; 81875138f8SAndrew Lunn const char *name; 82056eed2fSAndrew Lunn enum dsa_tag_protocol proto; 8368277a2cSJohn Crispin }; 8468277a2cSJohn Crispin 850b42f033SAndrew Lunn #define DSA_TAG_DRIVER_ALIAS "dsa_tag-" 860b42f033SAndrew Lunn #define MODULE_ALIAS_DSA_TAG_DRIVER(__proto) \ 870b42f033SAndrew Lunn MODULE_ALIAS(DSA_TAG_DRIVER_ALIAS __stringify(__proto##_VALUE)) 880b42f033SAndrew Lunn 89b68b0dd0SVladimir Oltean struct dsa_skb_cb { 90b68b0dd0SVladimir Oltean struct sk_buff *clone; 9197a69a0dSVladimir Oltean bool deferred_xmit; 92b68b0dd0SVladimir Oltean }; 93b68b0dd0SVladimir Oltean 94b68b0dd0SVladimir Oltean struct __dsa_skb_cb { 95b68b0dd0SVladimir Oltean struct dsa_skb_cb cb; 96b68b0dd0SVladimir Oltean u8 priv[48 - sizeof(struct dsa_skb_cb)]; 97b68b0dd0SVladimir Oltean }; 98b68b0dd0SVladimir Oltean 99b68b0dd0SVladimir Oltean #define __DSA_SKB_CB(skb) ((struct __dsa_skb_cb *)((skb)->cb)) 100b68b0dd0SVladimir Oltean 101b68b0dd0SVladimir Oltean #define DSA_SKB_CB(skb) ((struct dsa_skb_cb *)((skb)->cb)) 102b68b0dd0SVladimir Oltean 103b68b0dd0SVladimir Oltean #define DSA_SKB_CB_PRIV(skb) \ 104b68b0dd0SVladimir Oltean ((void *)(skb)->cb + offsetof(struct __dsa_skb_cb, priv)) 105b68b0dd0SVladimir Oltean 106cf50dcc2SBen Hutchings struct dsa_switch_tree { 10783c0afaeSAndrew Lunn struct list_head list; 10883c0afaeSAndrew Lunn 109f515f192SVivien Didelot /* Notifier chain for switch-wide events */ 110f515f192SVivien Didelot struct raw_notifier_head nh; 111f515f192SVivien Didelot 11283c0afaeSAndrew Lunn /* Tree identifier */ 11349463b7fSVivien Didelot unsigned int index; 11483c0afaeSAndrew Lunn 11583c0afaeSAndrew Lunn /* Number of switches attached to this tree */ 11683c0afaeSAndrew Lunn struct kref refcount; 11783c0afaeSAndrew Lunn 11883c0afaeSAndrew Lunn /* Has this tree been applied to the hardware? */ 119ec15dd42SVivien Didelot bool setup; 12083c0afaeSAndrew Lunn 121cf50dcc2SBen Hutchings /* 122cf50dcc2SBen Hutchings * Configuration data for the platform device that owns 123cf50dcc2SBen Hutchings * this dsa switch tree instance. 124cf50dcc2SBen Hutchings */ 125cf50dcc2SBen Hutchings struct dsa_platform_data *pd; 126cf85d08fSLennert Buytenhek 127cf50dcc2SBen Hutchings /* 1288b0d3ea5SVivien Didelot * The switch port to which the CPU is attached. 129cf50dcc2SBen Hutchings */ 1308b0d3ea5SVivien Didelot struct dsa_port *cpu_dp; 131cf50dcc2SBen Hutchings 132cf50dcc2SBen Hutchings /* 133cf50dcc2SBen Hutchings * Data for the individual switch chips. 134cf50dcc2SBen Hutchings */ 135cf50dcc2SBen Hutchings struct dsa_switch *ds[DSA_MAX_SWITCHES]; 136cf50dcc2SBen Hutchings }; 137cf50dcc2SBen Hutchings 138f50f2127SFlorian Fainelli /* TC matchall action types, only mirroring for now */ 139f50f2127SFlorian Fainelli enum dsa_port_mall_action_type { 140f50f2127SFlorian Fainelli DSA_PORT_MALL_MIRROR, 141f50f2127SFlorian Fainelli }; 142f50f2127SFlorian Fainelli 143f50f2127SFlorian Fainelli /* TC mirroring entry */ 144f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry { 145f50f2127SFlorian Fainelli u8 to_local_port; 146f50f2127SFlorian Fainelli bool ingress; 147f50f2127SFlorian Fainelli }; 148f50f2127SFlorian Fainelli 149f50f2127SFlorian Fainelli /* TC matchall entry */ 150f50f2127SFlorian Fainelli struct dsa_mall_tc_entry { 151f50f2127SFlorian Fainelli struct list_head list; 152f50f2127SFlorian Fainelli unsigned long cookie; 153f50f2127SFlorian Fainelli enum dsa_port_mall_action_type type; 154f50f2127SFlorian Fainelli union { 155f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry mirror; 156f50f2127SFlorian Fainelli }; 157f50f2127SFlorian Fainelli }; 158f50f2127SFlorian Fainelli 159f50f2127SFlorian Fainelli 160c8b09808SAndrew Lunn struct dsa_port { 161f8b8b1cdSVivien Didelot /* A CPU port is physically connected to a master device. 162f8b8b1cdSVivien Didelot * A user port exposed to userspace has a slave device. 163f8b8b1cdSVivien Didelot */ 164f8b8b1cdSVivien Didelot union { 165f8b8b1cdSVivien Didelot struct net_device *master; 166f8b8b1cdSVivien Didelot struct net_device *slave; 167f8b8b1cdSVivien Didelot }; 168f8b8b1cdSVivien Didelot 16915240248SVivien Didelot /* CPU port tagging operations used by master or slave devices */ 17015240248SVivien Didelot const struct dsa_device_ops *tag_ops; 17115240248SVivien Didelot 1723e41f93bSVivien Didelot /* Copies for faster access in master receive hot path */ 1733e41f93bSVivien Didelot struct dsa_switch_tree *dst; 1743e41f93bSVivien Didelot struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev, 1753e41f93bSVivien Didelot struct packet_type *pt); 176cc1939e4SVladimir Oltean bool (*filter)(const struct sk_buff *skb, struct net_device *dev); 1773e41f93bSVivien Didelot 178057cad2cSVivien Didelot enum { 179057cad2cSVivien Didelot DSA_PORT_TYPE_UNUSED = 0, 180057cad2cSVivien Didelot DSA_PORT_TYPE_CPU, 181057cad2cSVivien Didelot DSA_PORT_TYPE_DSA, 182057cad2cSVivien Didelot DSA_PORT_TYPE_USER, 183057cad2cSVivien Didelot } type; 184057cad2cSVivien Didelot 185818be848SVivien Didelot struct dsa_switch *ds; 186818be848SVivien Didelot unsigned int index; 18771e0bbdeSFlorian Fainelli const char *name; 18824a9332aSVivien Didelot const struct dsa_port *cpu_dp; 189a2c7023fSXiaofei Shen const char *mac; 190189b0d93SAndrew Lunn struct device_node *dn; 19134a79f63SVivien Didelot unsigned int ageing_time; 19233162e9aSVladimir Oltean bool vlan_filtering; 193732f794cSVivien Didelot u8 stp_state; 194a5e9a02eSVivien Didelot struct net_device *bridge_dev; 19596567d5dSAndrew Lunn struct devlink_port devlink_port; 196aab9c406SFlorian Fainelli struct phylink *pl; 19744cc27e4SIoana Ciornei struct phylink_config pl_config; 19897a69a0dSVladimir Oltean 19997a69a0dSVladimir Oltean struct work_struct xmit_work; 20097a69a0dSVladimir Oltean struct sk_buff_head xmit_queue; 20197a69a0dSVladimir Oltean 20267dbb9d4SFlorian Fainelli /* 203c362beb0SVladimir Oltean * Give the switch driver somewhere to hang its per-port private data 204c362beb0SVladimir Oltean * structures (accessible from the tagger). 205c362beb0SVladimir Oltean */ 206c362beb0SVladimir Oltean void *priv; 207c362beb0SVladimir Oltean 208c362beb0SVladimir Oltean /* 20967dbb9d4SFlorian Fainelli * Original copy of the master netdev ethtool_ops 21067dbb9d4SFlorian Fainelli */ 21167dbb9d4SFlorian Fainelli const struct ethtool_ops *orig_ethtool_ops; 212da7b9e9bSFlorian Fainelli 213da7b9e9bSFlorian Fainelli /* 214da7b9e9bSFlorian Fainelli * Original copy of the master netdev net_device_ops 215da7b9e9bSFlorian Fainelli */ 216da7b9e9bSFlorian Fainelli const struct net_device_ops *orig_ndo_ops; 217c8b09808SAndrew Lunn }; 218c8b09808SAndrew Lunn 219c8f0b869SBen Hutchings struct dsa_switch { 220c33063d6SAndrew Lunn struct device *dev; 221c33063d6SAndrew Lunn 222c8f0b869SBen Hutchings /* 223c8f0b869SBen Hutchings * Parent switch tree, and switch index. 224c8f0b869SBen Hutchings */ 225c8f0b869SBen Hutchings struct dsa_switch_tree *dst; 22699feaafcSVivien Didelot unsigned int index; 227c8f0b869SBen Hutchings 228f515f192SVivien Didelot /* Listener for switch fabric events */ 229f515f192SVivien Didelot struct notifier_block nb; 230f515f192SVivien Didelot 231c8f0b869SBen Hutchings /* 2327543a6d5SAndrew Lunn * Give the switch driver somewhere to hang its private data 2337543a6d5SAndrew Lunn * structure. 2347543a6d5SAndrew Lunn */ 2357543a6d5SAndrew Lunn void *priv; 2367543a6d5SAndrew Lunn 2377543a6d5SAndrew Lunn /* 238c8f0b869SBen Hutchings * Configuration data for this switch. 239c8f0b869SBen Hutchings */ 240ff04955cSAndrew Lunn struct dsa_chip_data *cd; 241c8f0b869SBen Hutchings 242c8f0b869SBen Hutchings /* 2439d490b4eSVivien Didelot * The switch operations. 244c8f0b869SBen Hutchings */ 245a82f67afSFlorian Fainelli const struct dsa_switch_ops *ops; 246c8f0b869SBen Hutchings 24766472fc0SAndrew Lunn /* 24866472fc0SAndrew Lunn * An array of which element [a] indicates which port on this 24966472fc0SAndrew Lunn * switch should be used to send packets to that are destined 25066472fc0SAndrew Lunn * for switch a. Can be NULL if there is only one switch chip. 25166472fc0SAndrew Lunn */ 25266472fc0SAndrew Lunn s8 rtable[DSA_MAX_SWITCHES]; 25366472fc0SAndrew Lunn 254c8f0b869SBen Hutchings /* 255c8f0b869SBen Hutchings * Slave mii_bus and devices for the individual ports. 256c8f0b869SBen Hutchings */ 2570d8bcdd3SFlorian Fainelli u32 phys_mii_mask; 258c8f0b869SBen Hutchings struct mii_bus *slave_mii_bus; 259a0c02161SVivien Didelot 2600f3da6afSVivien Didelot /* Ageing Time limits in msecs */ 2610f3da6afSVivien Didelot unsigned int ageing_time_min; 2620f3da6afSVivien Didelot unsigned int ageing_time_max; 2630f3da6afSVivien Didelot 26496567d5dSAndrew Lunn /* devlink used to represent this switch device */ 26596567d5dSAndrew Lunn struct devlink *devlink; 26696567d5dSAndrew Lunn 26755199df6SFlorian Fainelli /* Number of switch port queues */ 26855199df6SFlorian Fainelli unsigned int num_tx_queues; 26955199df6SFlorian Fainelli 2708f5d16f6SVladimir Oltean /* Disallow bridge core from requesting different VLAN awareness 2718f5d16f6SVladimir Oltean * settings on ports if not hardware-supported 2728f5d16f6SVladimir Oltean */ 2738f5d16f6SVladimir Oltean bool vlan_filtering_is_global; 2748f5d16f6SVladimir Oltean 27514574676SVladimir Oltean /* In case vlan_filtering_is_global is set, the VLAN awareness state 27614574676SVladimir Oltean * should be retrieved from here and not from the per-port settings. 27714574676SVladimir Oltean */ 27814574676SVladimir Oltean bool vlan_filtering; 27914574676SVladimir Oltean 2800015b80aSSalvatore Mesoraca unsigned long *bitmap; 2810015b80aSSalvatore Mesoraca unsigned long _bitmap; 2820015b80aSSalvatore Mesoraca 283a0c02161SVivien Didelot /* Dynamically allocated ports, keep last */ 284a0c02161SVivien Didelot size_t num_ports; 285a0c02161SVivien Didelot struct dsa_port ports[]; 286c8f0b869SBen Hutchings }; 287c8f0b869SBen Hutchings 288c38c5a66SVivien Didelot static inline const struct dsa_port *dsa_to_port(struct dsa_switch *ds, int p) 289c38c5a66SVivien Didelot { 290c38c5a66SVivien Didelot return &ds->ports[p]; 291c38c5a66SVivien Didelot } 292c38c5a66SVivien Didelot 293bff7b688SVivien Didelot static inline bool dsa_is_unused_port(struct dsa_switch *ds, int p) 294bff7b688SVivien Didelot { 295c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_UNUSED; 296bff7b688SVivien Didelot } 297bff7b688SVivien Didelot 298c8f0b869SBen Hutchings static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p) 299c8f0b869SBen Hutchings { 300c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_CPU; 301c8f0b869SBen Hutchings } 302c8f0b869SBen Hutchings 30360045cbfSAndrew Lunn static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p) 30460045cbfSAndrew Lunn { 305c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_DSA; 30660045cbfSAndrew Lunn } 30760045cbfSAndrew Lunn 3082b3e9891SVivien Didelot static inline bool dsa_is_user_port(struct dsa_switch *ds, int p) 3096cd456f3SVivien Didelot { 310c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_USER; 3116cd456f3SVivien Didelot } 3126cd456f3SVivien Didelot 31302bc6e54SVivien Didelot static inline u32 dsa_user_ports(struct dsa_switch *ds) 31402bc6e54SVivien Didelot { 315c38c5a66SVivien Didelot u32 mask = 0; 316c38c5a66SVivien Didelot int p; 31702bc6e54SVivien Didelot 318c38c5a66SVivien Didelot for (p = 0; p < ds->num_ports; p++) 319c38c5a66SVivien Didelot if (dsa_is_user_port(ds, p)) 320c38c5a66SVivien Didelot mask |= BIT(p); 321c38c5a66SVivien Didelot 322c38c5a66SVivien Didelot return mask; 323c8652c83SVivien Didelot } 324c8652c83SVivien Didelot 3253b8fac5dSVivien Didelot /* Return the local port used to reach an arbitrary switch port */ 3263b8fac5dSVivien Didelot static inline unsigned int dsa_towards_port(struct dsa_switch *ds, int device, 3273b8fac5dSVivien Didelot int port) 3283b8fac5dSVivien Didelot { 3293b8fac5dSVivien Didelot if (device == ds->index) 3303b8fac5dSVivien Didelot return port; 3313b8fac5dSVivien Didelot else 3323b8fac5dSVivien Didelot return ds->rtable[device]; 3333b8fac5dSVivien Didelot } 3343b8fac5dSVivien Didelot 3353b8fac5dSVivien Didelot /* Return the local port used to reach the dedicated CPU port */ 33607073c79SVivien Didelot static inline unsigned int dsa_upstream_port(struct dsa_switch *ds, int port) 337c8f0b869SBen Hutchings { 33807073c79SVivien Didelot const struct dsa_port *dp = dsa_to_port(ds, port); 33907073c79SVivien Didelot const struct dsa_port *cpu_dp = dp->cpu_dp; 34007073c79SVivien Didelot 34107073c79SVivien Didelot if (!cpu_dp) 34207073c79SVivien Didelot return port; 343c8f0b869SBen Hutchings 3443b8fac5dSVivien Didelot return dsa_towards_port(ds, cpu_dp->ds->index, cpu_dp->index); 345c8f0b869SBen Hutchings } 346c8f0b869SBen Hutchings 347cf2d45f5SVladimir Oltean static inline bool dsa_port_is_vlan_filtering(const struct dsa_port *dp) 348cf2d45f5SVladimir Oltean { 349cf2d45f5SVladimir Oltean const struct dsa_switch *ds = dp->ds; 350cf2d45f5SVladimir Oltean 351cf2d45f5SVladimir Oltean if (ds->vlan_filtering_is_global) 352cf2d45f5SVladimir Oltean return ds->vlan_filtering; 353cf2d45f5SVladimir Oltean else 354cf2d45f5SVladimir Oltean return dp->vlan_filtering; 355cf2d45f5SVladimir Oltean } 356cf2d45f5SVladimir Oltean 3572bedde1aSArkadi Sharshevsky typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid, 3582bedde1aSArkadi Sharshevsky bool is_static, void *data); 3599d490b4eSVivien Didelot struct dsa_switch_ops { 3605ed4e3ebSFlorian Fainelli enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds, 3615ed4e3ebSFlorian Fainelli int port); 3627b314362SAndrew Lunn 363c8f0b869SBen Hutchings int (*setup)(struct dsa_switch *ds); 3646819563eSFlorian Fainelli u32 (*get_phy_flags)(struct dsa_switch *ds, int port); 365c8f0b869SBen Hutchings 366c8f0b869SBen Hutchings /* 367c8f0b869SBen Hutchings * Access to the switch's PHY registers. 368c8f0b869SBen Hutchings */ 369c8f0b869SBen Hutchings int (*phy_read)(struct dsa_switch *ds, int port, int regnum); 370c8f0b869SBen Hutchings int (*phy_write)(struct dsa_switch *ds, int port, 371c8f0b869SBen Hutchings int regnum, u16 val); 372c8f0b869SBen Hutchings 373c8f0b869SBen Hutchings /* 374ec9436baSFlorian Fainelli * Link state adjustment (called from libphy) 375ec9436baSFlorian Fainelli */ 376ec9436baSFlorian Fainelli void (*adjust_link)(struct dsa_switch *ds, int port, 377ec9436baSFlorian Fainelli struct phy_device *phydev); 378ce31b31cSFlorian Fainelli void (*fixed_link_update)(struct dsa_switch *ds, int port, 379ce31b31cSFlorian Fainelli struct fixed_phy_status *st); 380ec9436baSFlorian Fainelli 381ec9436baSFlorian Fainelli /* 38211d8f3ddSFlorian Fainelli * PHYLINK integration 38311d8f3ddSFlorian Fainelli */ 38411d8f3ddSFlorian Fainelli void (*phylink_validate)(struct dsa_switch *ds, int port, 38511d8f3ddSFlorian Fainelli unsigned long *supported, 38611d8f3ddSFlorian Fainelli struct phylink_link_state *state); 38711d8f3ddSFlorian Fainelli int (*phylink_mac_link_state)(struct dsa_switch *ds, int port, 38811d8f3ddSFlorian Fainelli struct phylink_link_state *state); 38911d8f3ddSFlorian Fainelli void (*phylink_mac_config)(struct dsa_switch *ds, int port, 39011d8f3ddSFlorian Fainelli unsigned int mode, 39111d8f3ddSFlorian Fainelli const struct phylink_link_state *state); 39211d8f3ddSFlorian Fainelli void (*phylink_mac_an_restart)(struct dsa_switch *ds, int port); 39311d8f3ddSFlorian Fainelli void (*phylink_mac_link_down)(struct dsa_switch *ds, int port, 39411d8f3ddSFlorian Fainelli unsigned int mode, 39511d8f3ddSFlorian Fainelli phy_interface_t interface); 39611d8f3ddSFlorian Fainelli void (*phylink_mac_link_up)(struct dsa_switch *ds, int port, 39711d8f3ddSFlorian Fainelli unsigned int mode, 39811d8f3ddSFlorian Fainelli phy_interface_t interface, 39911d8f3ddSFlorian Fainelli struct phy_device *phydev); 40011d8f3ddSFlorian Fainelli void (*phylink_fixed_state)(struct dsa_switch *ds, int port, 40111d8f3ddSFlorian Fainelli struct phylink_link_state *state); 40211d8f3ddSFlorian Fainelli /* 403c8f0b869SBen Hutchings * ethtool hardware statistics. 404c8f0b869SBen Hutchings */ 40589f09048SFlorian Fainelli void (*get_strings)(struct dsa_switch *ds, int port, 40689f09048SFlorian Fainelli u32 stringset, uint8_t *data); 407c8f0b869SBen Hutchings void (*get_ethtool_stats)(struct dsa_switch *ds, 408c8f0b869SBen Hutchings int port, uint64_t *data); 40989f09048SFlorian Fainelli int (*get_sset_count)(struct dsa_switch *ds, int port, int sset); 410cf963573SFlorian Fainelli void (*get_ethtool_phy_stats)(struct dsa_switch *ds, 411cf963573SFlorian Fainelli int port, uint64_t *data); 41224462549SFlorian Fainelli 41324462549SFlorian Fainelli /* 41419e57c4eSFlorian Fainelli * ethtool Wake-on-LAN 41519e57c4eSFlorian Fainelli */ 41619e57c4eSFlorian Fainelli void (*get_wol)(struct dsa_switch *ds, int port, 41719e57c4eSFlorian Fainelli struct ethtool_wolinfo *w); 41819e57c4eSFlorian Fainelli int (*set_wol)(struct dsa_switch *ds, int port, 41919e57c4eSFlorian Fainelli struct ethtool_wolinfo *w); 42019e57c4eSFlorian Fainelli 42119e57c4eSFlorian Fainelli /* 4220336369dSBrandon Streiff * ethtool timestamp info 4230336369dSBrandon Streiff */ 4240336369dSBrandon Streiff int (*get_ts_info)(struct dsa_switch *ds, int port, 4250336369dSBrandon Streiff struct ethtool_ts_info *ts); 4260336369dSBrandon Streiff 4270336369dSBrandon Streiff /* 42824462549SFlorian Fainelli * Suspend and resume 42924462549SFlorian Fainelli */ 43024462549SFlorian Fainelli int (*suspend)(struct dsa_switch *ds); 43124462549SFlorian Fainelli int (*resume)(struct dsa_switch *ds); 432b2f2af21SFlorian Fainelli 433b2f2af21SFlorian Fainelli /* 434b2f2af21SFlorian Fainelli * Port enable/disable 435b2f2af21SFlorian Fainelli */ 436b2f2af21SFlorian Fainelli int (*port_enable)(struct dsa_switch *ds, int port, 437b2f2af21SFlorian Fainelli struct phy_device *phy); 43875104db0SAndrew Lunn void (*port_disable)(struct dsa_switch *ds, int port); 4397905288fSFlorian Fainelli 4407905288fSFlorian Fainelli /* 44108f50061SVivien Didelot * Port's MAC EEE settings 4427905288fSFlorian Fainelli */ 44308f50061SVivien Didelot int (*set_mac_eee)(struct dsa_switch *ds, int port, 4447905288fSFlorian Fainelli struct ethtool_eee *e); 44508f50061SVivien Didelot int (*get_mac_eee)(struct dsa_switch *ds, int port, 4467905288fSFlorian Fainelli struct ethtool_eee *e); 44751579c3fSGuenter Roeck 4486793abb4SGuenter Roeck /* EEPROM access */ 4496793abb4SGuenter Roeck int (*get_eeprom_len)(struct dsa_switch *ds); 4506793abb4SGuenter Roeck int (*get_eeprom)(struct dsa_switch *ds, 4516793abb4SGuenter Roeck struct ethtool_eeprom *eeprom, u8 *data); 4526793abb4SGuenter Roeck int (*set_eeprom)(struct dsa_switch *ds, 4536793abb4SGuenter Roeck struct ethtool_eeprom *eeprom, u8 *data); 4543d762a0fSGuenter Roeck 4553d762a0fSGuenter Roeck /* 4563d762a0fSGuenter Roeck * Register access. 4573d762a0fSGuenter Roeck */ 4583d762a0fSGuenter Roeck int (*get_regs_len)(struct dsa_switch *ds, int port); 4593d762a0fSGuenter Roeck void (*get_regs)(struct dsa_switch *ds, int port, 4603d762a0fSGuenter Roeck struct ethtool_regs *regs, void *p); 461b73adef6SFlorian Fainelli 462b73adef6SFlorian Fainelli /* 463b73adef6SFlorian Fainelli * Bridge integration 464b73adef6SFlorian Fainelli */ 46534a79f63SVivien Didelot int (*set_ageing_time)(struct dsa_switch *ds, unsigned int msecs); 46671327a4eSVivien Didelot int (*port_bridge_join)(struct dsa_switch *ds, int port, 467a6692754SVivien Didelot struct net_device *bridge); 468f123f2fbSVivien Didelot void (*port_bridge_leave)(struct dsa_switch *ds, int port, 469f123f2fbSVivien Didelot struct net_device *bridge); 47043c44a9fSVivien Didelot void (*port_stp_state_set)(struct dsa_switch *ds, int port, 471b73adef6SFlorian Fainelli u8 state); 472732f794cSVivien Didelot void (*port_fast_age)(struct dsa_switch *ds, int port); 47357652796SRussell King int (*port_egress_floods)(struct dsa_switch *ds, int port, 47457652796SRussell King bool unicast, bool multicast); 4752a778e1bSVivien Didelot 4762a778e1bSVivien Didelot /* 47711149536SVivien Didelot * VLAN support 47811149536SVivien Didelot */ 479fb2dabadSVivien Didelot int (*port_vlan_filtering)(struct dsa_switch *ds, int port, 480fb2dabadSVivien Didelot bool vlan_filtering); 48176e398a6SVivien Didelot int (*port_vlan_prepare)(struct dsa_switch *ds, int port, 48280e02360SVivien Didelot const struct switchdev_obj_port_vlan *vlan); 4834d5770b3SVivien Didelot void (*port_vlan_add)(struct dsa_switch *ds, int port, 48480e02360SVivien Didelot const struct switchdev_obj_port_vlan *vlan); 48576e398a6SVivien Didelot int (*port_vlan_del)(struct dsa_switch *ds, int port, 48676e398a6SVivien Didelot const struct switchdev_obj_port_vlan *vlan); 48711149536SVivien Didelot /* 4882a778e1bSVivien Didelot * Forwarding database 4892a778e1bSVivien Didelot */ 4901b6dd556SArkadi Sharshevsky int (*port_fdb_add)(struct dsa_switch *ds, int port, 4916c2c1dcbSArkadi Sharshevsky const unsigned char *addr, u16 vid); 4922a778e1bSVivien Didelot int (*port_fdb_del)(struct dsa_switch *ds, int port, 4936c2c1dcbSArkadi Sharshevsky const unsigned char *addr, u16 vid); 494ea70ba98SVivien Didelot int (*port_fdb_dump)(struct dsa_switch *ds, int port, 4952bedde1aSArkadi Sharshevsky dsa_fdb_dump_cb_t *cb, void *data); 4968df30255SVivien Didelot 4978df30255SVivien Didelot /* 4988df30255SVivien Didelot * Multicast database 4998df30255SVivien Didelot */ 5008df30255SVivien Didelot int (*port_mdb_prepare)(struct dsa_switch *ds, int port, 5013709aadcSVivien Didelot const struct switchdev_obj_port_mdb *mdb); 5028df30255SVivien Didelot void (*port_mdb_add)(struct dsa_switch *ds, int port, 5033709aadcSVivien Didelot const struct switchdev_obj_port_mdb *mdb); 5048df30255SVivien Didelot int (*port_mdb_del)(struct dsa_switch *ds, int port, 5058df30255SVivien Didelot const struct switchdev_obj_port_mdb *mdb); 506bf9f2648SFlorian Fainelli /* 507bf9f2648SFlorian Fainelli * RXNFC 508bf9f2648SFlorian Fainelli */ 509bf9f2648SFlorian Fainelli int (*get_rxnfc)(struct dsa_switch *ds, int port, 510bf9f2648SFlorian Fainelli struct ethtool_rxnfc *nfc, u32 *rule_locs); 511bf9f2648SFlorian Fainelli int (*set_rxnfc)(struct dsa_switch *ds, int port, 512bf9f2648SFlorian Fainelli struct ethtool_rxnfc *nfc); 513f50f2127SFlorian Fainelli 514f50f2127SFlorian Fainelli /* 515f50f2127SFlorian Fainelli * TC integration 516f50f2127SFlorian Fainelli */ 517f50f2127SFlorian Fainelli int (*port_mirror_add)(struct dsa_switch *ds, int port, 518f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry *mirror, 519f50f2127SFlorian Fainelli bool ingress); 520f50f2127SFlorian Fainelli void (*port_mirror_del)(struct dsa_switch *ds, int port, 521f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry *mirror); 52240ef2c93SVivien Didelot 52340ef2c93SVivien Didelot /* 52440ef2c93SVivien Didelot * Cross-chip operations 52540ef2c93SVivien Didelot */ 52640ef2c93SVivien Didelot int (*crosschip_bridge_join)(struct dsa_switch *ds, int sw_index, 52740ef2c93SVivien Didelot int port, struct net_device *br); 52840ef2c93SVivien Didelot void (*crosschip_bridge_leave)(struct dsa_switch *ds, int sw_index, 52940ef2c93SVivien Didelot int port, struct net_device *br); 5300336369dSBrandon Streiff 5310336369dSBrandon Streiff /* 5320336369dSBrandon Streiff * PTP functionality 5330336369dSBrandon Streiff */ 5340336369dSBrandon Streiff int (*port_hwtstamp_get)(struct dsa_switch *ds, int port, 5350336369dSBrandon Streiff struct ifreq *ifr); 5360336369dSBrandon Streiff int (*port_hwtstamp_set)(struct dsa_switch *ds, int port, 5370336369dSBrandon Streiff struct ifreq *ifr); 53890af1059SBrandon Streiff bool (*port_txtstamp)(struct dsa_switch *ds, int port, 53990af1059SBrandon Streiff struct sk_buff *clone, unsigned int type); 54090af1059SBrandon Streiff bool (*port_rxtstamp)(struct dsa_switch *ds, int port, 54190af1059SBrandon Streiff struct sk_buff *skb, unsigned int type); 54297a69a0dSVladimir Oltean 54397a69a0dSVladimir Oltean /* 54497a69a0dSVladimir Oltean * Deferred frame Tx 54597a69a0dSVladimir Oltean */ 54697a69a0dSVladimir Oltean netdev_tx_t (*port_deferred_xmit)(struct dsa_switch *ds, int port, 54797a69a0dSVladimir Oltean struct sk_buff *skb); 548c8f0b869SBen Hutchings }; 549c8f0b869SBen Hutchings 550ab3d408dSFlorian Fainelli struct dsa_switch_driver { 551ab3d408dSFlorian Fainelli struct list_head list; 552a82f67afSFlorian Fainelli const struct dsa_switch_ops *ops; 553ab3d408dSFlorian Fainelli }; 554ab3d408dSFlorian Fainelli 55514b89f36SFlorian Fainelli struct net_device *dsa_dev_to_net_device(struct device *dev); 556c8f0b869SBen Hutchings 55773a7ece8SVivien Didelot /* Keep inline for faster access in hot path */ 558c6e970a0SAndrew Lunn static inline bool netdev_uses_dsa(struct net_device *dev) 559c6e970a0SAndrew Lunn { 560c6e970a0SAndrew Lunn #if IS_ENABLED(CONFIG_NET_DSA) 561717ffbfbSVivien Didelot return dev->dsa_ptr && dev->dsa_ptr->rcv; 562c6e970a0SAndrew Lunn #endif 563c6e970a0SAndrew Lunn return false; 564c6e970a0SAndrew Lunn } 565c6e970a0SAndrew Lunn 566cc1939e4SVladimir Oltean static inline bool dsa_can_decode(const struct sk_buff *skb, 567cc1939e4SVladimir Oltean struct net_device *dev) 568cc1939e4SVladimir Oltean { 569cc1939e4SVladimir Oltean #if IS_ENABLED(CONFIG_NET_DSA) 570cc1939e4SVladimir Oltean return !dev->dsa_ptr->filter || dev->dsa_ptr->filter(skb, dev); 571cc1939e4SVladimir Oltean #endif 572cc1939e4SVladimir Oltean return false; 573cc1939e4SVladimir Oltean } 574cc1939e4SVladimir Oltean 575a0c02161SVivien Didelot struct dsa_switch *dsa_switch_alloc(struct device *dev, size_t n); 57683c0afaeSAndrew Lunn void dsa_unregister_switch(struct dsa_switch *ds); 57723c9ee49SVivien Didelot int dsa_register_switch(struct dsa_switch *ds); 578ea825e70SFlorian Fainelli #ifdef CONFIG_PM_SLEEP 579ea825e70SFlorian Fainelli int dsa_switch_suspend(struct dsa_switch *ds); 580ea825e70SFlorian Fainelli int dsa_switch_resume(struct dsa_switch *ds); 581ea825e70SFlorian Fainelli #else 582ea825e70SFlorian Fainelli static inline int dsa_switch_suspend(struct dsa_switch *ds) 583ea825e70SFlorian Fainelli { 584ea825e70SFlorian Fainelli return 0; 585ea825e70SFlorian Fainelli } 586ea825e70SFlorian Fainelli static inline int dsa_switch_resume(struct dsa_switch *ds) 587ea825e70SFlorian Fainelli { 588ea825e70SFlorian Fainelli return 0; 589ea825e70SFlorian Fainelli } 590ea825e70SFlorian Fainelli #endif /* CONFIG_PM_SLEEP */ 591ea825e70SFlorian Fainelli 59260724d4bSFlorian Fainelli enum dsa_notifier_type { 59360724d4bSFlorian Fainelli DSA_PORT_REGISTER, 59460724d4bSFlorian Fainelli DSA_PORT_UNREGISTER, 59560724d4bSFlorian Fainelli }; 59660724d4bSFlorian Fainelli 59760724d4bSFlorian Fainelli struct dsa_notifier_info { 59860724d4bSFlorian Fainelli struct net_device *dev; 59960724d4bSFlorian Fainelli }; 60060724d4bSFlorian Fainelli 60160724d4bSFlorian Fainelli struct dsa_notifier_register_info { 60260724d4bSFlorian Fainelli struct dsa_notifier_info info; /* must be first */ 60360724d4bSFlorian Fainelli struct net_device *master; 60460724d4bSFlorian Fainelli unsigned int port_number; 60560724d4bSFlorian Fainelli unsigned int switch_number; 60660724d4bSFlorian Fainelli }; 60760724d4bSFlorian Fainelli 60860724d4bSFlorian Fainelli static inline struct net_device * 60960724d4bSFlorian Fainelli dsa_notifier_info_to_dev(const struct dsa_notifier_info *info) 61060724d4bSFlorian Fainelli { 61160724d4bSFlorian Fainelli return info->dev; 61260724d4bSFlorian Fainelli } 61360724d4bSFlorian Fainelli 61460724d4bSFlorian Fainelli #if IS_ENABLED(CONFIG_NET_DSA) 61560724d4bSFlorian Fainelli int register_dsa_notifier(struct notifier_block *nb); 61660724d4bSFlorian Fainelli int unregister_dsa_notifier(struct notifier_block *nb); 61760724d4bSFlorian Fainelli int call_dsa_notifiers(unsigned long val, struct net_device *dev, 61860724d4bSFlorian Fainelli struct dsa_notifier_info *info); 61960724d4bSFlorian Fainelli #else 62060724d4bSFlorian Fainelli static inline int register_dsa_notifier(struct notifier_block *nb) 62160724d4bSFlorian Fainelli { 62260724d4bSFlorian Fainelli return 0; 62360724d4bSFlorian Fainelli } 62460724d4bSFlorian Fainelli 62560724d4bSFlorian Fainelli static inline int unregister_dsa_notifier(struct notifier_block *nb) 62660724d4bSFlorian Fainelli { 62760724d4bSFlorian Fainelli return 0; 62860724d4bSFlorian Fainelli } 62960724d4bSFlorian Fainelli 63060724d4bSFlorian Fainelli static inline int call_dsa_notifiers(unsigned long val, struct net_device *dev, 63160724d4bSFlorian Fainelli struct dsa_notifier_info *info) 63260724d4bSFlorian Fainelli { 63360724d4bSFlorian Fainelli return NOTIFY_DONE; 63460724d4bSFlorian Fainelli } 63560724d4bSFlorian Fainelli #endif 63660724d4bSFlorian Fainelli 6370a5f14ceSFlorian Fainelli /* Broadcom tag specific helpers to insert and extract queue/port number */ 6380a5f14ceSFlorian Fainelli #define BRCM_TAG_SET_PORT_QUEUE(p, q) ((p) << 8 | q) 6390a5f14ceSFlorian Fainelli #define BRCM_TAG_GET_PORT(v) ((v) >> 8) 6400a5f14ceSFlorian Fainelli #define BRCM_TAG_GET_QUEUE(v) ((v) & 0xff) 6410a5f14ceSFlorian Fainelli 642cf963573SFlorian Fainelli 64397a69a0dSVladimir Oltean netdev_tx_t dsa_enqueue_skb(struct sk_buff *skb, struct net_device *dev); 644cf963573SFlorian Fainelli int dsa_port_get_phy_strings(struct dsa_port *dp, uint8_t *data); 645cf963573SFlorian Fainelli int dsa_port_get_ethtool_phy_stats(struct dsa_port *dp, uint64_t *data); 646cf963573SFlorian Fainelli int dsa_port_get_phy_sset_count(struct dsa_port *dp); 64711d8f3ddSFlorian Fainelli void dsa_port_phylink_mac_change(struct dsa_switch *ds, int port, bool up); 648cf963573SFlorian Fainelli 649d3b8c049SAndrew Lunn struct dsa_tag_driver { 650d3b8c049SAndrew Lunn const struct dsa_device_ops *ops; 651d3b8c049SAndrew Lunn struct list_head list; 652d3b8c049SAndrew Lunn struct module *owner; 653d3b8c049SAndrew Lunn }; 654d3b8c049SAndrew Lunn 655d3b8c049SAndrew Lunn void dsa_tag_drivers_register(struct dsa_tag_driver *dsa_tag_driver_array[], 656d3b8c049SAndrew Lunn unsigned int count, 657d3b8c049SAndrew Lunn struct module *owner); 658d3b8c049SAndrew Lunn void dsa_tag_drivers_unregister(struct dsa_tag_driver *dsa_tag_driver_array[], 659d3b8c049SAndrew Lunn unsigned int count); 660d3b8c049SAndrew Lunn 661d3b8c049SAndrew Lunn #define dsa_tag_driver_module_drivers(__dsa_tag_drivers_array, __count) \ 662d3b8c049SAndrew Lunn static int __init dsa_tag_driver_module_init(void) \ 663d3b8c049SAndrew Lunn { \ 664d3b8c049SAndrew Lunn dsa_tag_drivers_register(__dsa_tag_drivers_array, __count, \ 665d3b8c049SAndrew Lunn THIS_MODULE); \ 666d3b8c049SAndrew Lunn return 0; \ 667d3b8c049SAndrew Lunn } \ 668d3b8c049SAndrew Lunn module_init(dsa_tag_driver_module_init); \ 669d3b8c049SAndrew Lunn \ 670d3b8c049SAndrew Lunn static void __exit dsa_tag_driver_module_exit(void) \ 671d3b8c049SAndrew Lunn { \ 672d3b8c049SAndrew Lunn dsa_tag_drivers_unregister(__dsa_tag_drivers_array, __count); \ 673d3b8c049SAndrew Lunn } \ 674d3b8c049SAndrew Lunn module_exit(dsa_tag_driver_module_exit) 675d3b8c049SAndrew Lunn 676d3b8c049SAndrew Lunn /** 677d3b8c049SAndrew Lunn * module_dsa_tag_drivers() - Helper macro for registering DSA tag 678d3b8c049SAndrew Lunn * drivers 679d3b8c049SAndrew Lunn * @__ops_array: Array of tag driver strucutres 680d3b8c049SAndrew Lunn * 681d3b8c049SAndrew Lunn * Helper macro for DSA tag drivers which do not do anything special 682d3b8c049SAndrew Lunn * in module init/exit. Each module may only use this macro once, and 683d3b8c049SAndrew Lunn * calling it replaces module_init() and module_exit(). 684d3b8c049SAndrew Lunn */ 685d3b8c049SAndrew Lunn #define module_dsa_tag_drivers(__ops_array) \ 686d3b8c049SAndrew Lunn dsa_tag_driver_module_drivers(__ops_array, ARRAY_SIZE(__ops_array)) 687d3b8c049SAndrew Lunn 688d3b8c049SAndrew Lunn #define DSA_TAG_DRIVER_NAME(__ops) dsa_tag_driver ## _ ## __ops 689d3b8c049SAndrew Lunn 690d3b8c049SAndrew Lunn /* Create a static structure we can build a linked list of dsa_tag 691d3b8c049SAndrew Lunn * drivers 692d3b8c049SAndrew Lunn */ 693d3b8c049SAndrew Lunn #define DSA_TAG_DRIVER(__ops) \ 694d3b8c049SAndrew Lunn static struct dsa_tag_driver DSA_TAG_DRIVER_NAME(__ops) = { \ 695d3b8c049SAndrew Lunn .ops = &__ops, \ 696d3b8c049SAndrew Lunn } 697d3b8c049SAndrew Lunn 698d3b8c049SAndrew Lunn /** 699d3b8c049SAndrew Lunn * module_dsa_tag_driver() - Helper macro for registering a single DSA tag 700d3b8c049SAndrew Lunn * driver 701d3b8c049SAndrew Lunn * @__ops: Single tag driver structures 702d3b8c049SAndrew Lunn * 703d3b8c049SAndrew Lunn * Helper macro for DSA tag drivers which do not do anything special 704d3b8c049SAndrew Lunn * in module init/exit. Each module may only use this macro once, and 705d3b8c049SAndrew Lunn * calling it replaces module_init() and module_exit(). 706d3b8c049SAndrew Lunn */ 707d3b8c049SAndrew Lunn #define module_dsa_tag_driver(__ops) \ 708d3b8c049SAndrew Lunn DSA_TAG_DRIVER(__ops); \ 709d3b8c049SAndrew Lunn \ 710d3b8c049SAndrew Lunn static struct dsa_tag_driver *dsa_tag_driver_array[] = { \ 711d3b8c049SAndrew Lunn &DSA_TAG_DRIVER_NAME(__ops) \ 712d3b8c049SAndrew Lunn }; \ 713d3b8c049SAndrew Lunn module_dsa_tag_drivers(dsa_tag_driver_array) 71491da11f8SLennert Buytenhek #endif 715d3b8c049SAndrew Lunn 716