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> 2596567d5dSAndrew Lunn #include <net/devlink.h> 26f0c24ccfSVivien Didelot #include <net/switchdev.h> 27cf50dcc2SBen Hutchings 28f50f2127SFlorian Fainelli struct tc_action; 294d56a29fSRussell King struct phy_device; 304d56a29fSRussell King struct fixed_phy_status; 3111d8f3ddSFlorian Fainelli struct phylink_link_state; 32f50f2127SFlorian Fainelli 330b42f033SAndrew Lunn #define DSA_TAG_PROTO_NONE_VALUE 0 340b42f033SAndrew Lunn #define DSA_TAG_PROTO_BRCM_VALUE 1 350b42f033SAndrew Lunn #define DSA_TAG_PROTO_BRCM_PREPEND_VALUE 2 360b42f033SAndrew Lunn #define DSA_TAG_PROTO_DSA_VALUE 3 370b42f033SAndrew Lunn #define DSA_TAG_PROTO_EDSA_VALUE 4 380b42f033SAndrew Lunn #define DSA_TAG_PROTO_GSWIP_VALUE 5 390b42f033SAndrew Lunn #define DSA_TAG_PROTO_KSZ9477_VALUE 6 400b42f033SAndrew Lunn #define DSA_TAG_PROTO_KSZ9893_VALUE 7 410b42f033SAndrew Lunn #define DSA_TAG_PROTO_LAN9303_VALUE 8 420b42f033SAndrew Lunn #define DSA_TAG_PROTO_MTK_VALUE 9 430b42f033SAndrew Lunn #define DSA_TAG_PROTO_QCA_VALUE 10 440b42f033SAndrew Lunn #define DSA_TAG_PROTO_TRAILER_VALUE 11 45f9bbe447SVladimir Oltean #define DSA_TAG_PROTO_8021Q_VALUE 12 460b42f033SAndrew Lunn 47ac7a04c3SFlorian Fainelli enum dsa_tag_protocol { 480b42f033SAndrew Lunn DSA_TAG_PROTO_NONE = DSA_TAG_PROTO_NONE_VALUE, 490b42f033SAndrew Lunn DSA_TAG_PROTO_BRCM = DSA_TAG_PROTO_BRCM_VALUE, 500b42f033SAndrew Lunn DSA_TAG_PROTO_BRCM_PREPEND = DSA_TAG_PROTO_BRCM_PREPEND_VALUE, 510b42f033SAndrew Lunn DSA_TAG_PROTO_DSA = DSA_TAG_PROTO_DSA_VALUE, 520b42f033SAndrew Lunn DSA_TAG_PROTO_EDSA = DSA_TAG_PROTO_EDSA_VALUE, 530b42f033SAndrew Lunn DSA_TAG_PROTO_GSWIP = DSA_TAG_PROTO_GSWIP_VALUE, 540b42f033SAndrew Lunn DSA_TAG_PROTO_KSZ9477 = DSA_TAG_PROTO_KSZ9477_VALUE, 550b42f033SAndrew Lunn DSA_TAG_PROTO_KSZ9893 = DSA_TAG_PROTO_KSZ9893_VALUE, 560b42f033SAndrew Lunn DSA_TAG_PROTO_LAN9303 = DSA_TAG_PROTO_LAN9303_VALUE, 570b42f033SAndrew Lunn DSA_TAG_PROTO_MTK = DSA_TAG_PROTO_MTK_VALUE, 580b42f033SAndrew Lunn DSA_TAG_PROTO_QCA = DSA_TAG_PROTO_QCA_VALUE, 590b42f033SAndrew Lunn DSA_TAG_PROTO_TRAILER = DSA_TAG_PROTO_TRAILER_VALUE, 60f9bbe447SVladimir Oltean DSA_TAG_PROTO_8021Q = DSA_TAG_PROTO_8021Q_VALUE, 61ac7a04c3SFlorian Fainelli }; 625037d532SFlorian Fainelli 635075314eSAlexander Duyck struct packet_type; 6490af1059SBrandon Streiff struct dsa_switch; 653e8a72d1SFlorian Fainelli 6668277a2cSJohn Crispin struct dsa_device_ops { 6768277a2cSJohn Crispin struct sk_buff *(*xmit)(struct sk_buff *skb, struct net_device *dev); 6868277a2cSJohn Crispin struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev, 6989e49506SFlorian Westphal struct packet_type *pt); 70598a9680SJohn Crispin int (*flow_dissect)(const struct sk_buff *skb, __be16 *proto, 71598a9680SJohn Crispin int *offset); 72cc1939e4SVladimir Oltean /* Used to determine which traffic should match the DSA filter in 73cc1939e4SVladimir Oltean * eth_type_trans, and which, if any, should bypass it and be processed 74cc1939e4SVladimir Oltean * as regular on the master net device. 75cc1939e4SVladimir Oltean */ 76cc1939e4SVladimir Oltean bool (*filter)(const struct sk_buff *skb, struct net_device *dev); 77a5dd3087SAndrew Lunn unsigned int overhead; 78875138f8SAndrew Lunn const char *name; 79056eed2fSAndrew Lunn enum dsa_tag_protocol proto; 8068277a2cSJohn Crispin }; 8168277a2cSJohn Crispin 820b42f033SAndrew Lunn #define DSA_TAG_DRIVER_ALIAS "dsa_tag-" 830b42f033SAndrew Lunn #define MODULE_ALIAS_DSA_TAG_DRIVER(__proto) \ 840b42f033SAndrew Lunn MODULE_ALIAS(DSA_TAG_DRIVER_ALIAS __stringify(__proto##_VALUE)) 850b42f033SAndrew Lunn 86b68b0dd0SVladimir Oltean struct dsa_skb_cb { 87b68b0dd0SVladimir Oltean struct sk_buff *clone; 8897a69a0dSVladimir Oltean bool deferred_xmit; 89b68b0dd0SVladimir Oltean }; 90b68b0dd0SVladimir Oltean 91b68b0dd0SVladimir Oltean struct __dsa_skb_cb { 92b68b0dd0SVladimir Oltean struct dsa_skb_cb cb; 93b68b0dd0SVladimir Oltean u8 priv[48 - sizeof(struct dsa_skb_cb)]; 94b68b0dd0SVladimir Oltean }; 95b68b0dd0SVladimir Oltean 96b68b0dd0SVladimir Oltean #define __DSA_SKB_CB(skb) ((struct __dsa_skb_cb *)((skb)->cb)) 97b68b0dd0SVladimir Oltean 98b68b0dd0SVladimir Oltean #define DSA_SKB_CB(skb) ((struct dsa_skb_cb *)((skb)->cb)) 99b68b0dd0SVladimir Oltean 100b68b0dd0SVladimir Oltean #define DSA_SKB_CB_COPY(nskb, skb) \ 101b68b0dd0SVladimir Oltean { *__DSA_SKB_CB(nskb) = *__DSA_SKB_CB(skb); } 102b68b0dd0SVladimir Oltean 103b68b0dd0SVladimir Oltean #define DSA_SKB_CB_ZERO(skb) \ 104b68b0dd0SVladimir Oltean { *__DSA_SKB_CB(skb) = (struct __dsa_skb_cb) {0}; } 105b68b0dd0SVladimir Oltean 106b68b0dd0SVladimir Oltean #define DSA_SKB_CB_PRIV(skb) \ 107b68b0dd0SVladimir Oltean ((void *)(skb)->cb + offsetof(struct __dsa_skb_cb, priv)) 108b68b0dd0SVladimir Oltean 109b68b0dd0SVladimir Oltean #define DSA_SKB_CB_CLONE(_clone, _skb) \ 110b68b0dd0SVladimir Oltean { \ 111b68b0dd0SVladimir Oltean struct sk_buff *clone = _clone; \ 112b68b0dd0SVladimir Oltean struct sk_buff *skb = _skb; \ 113b68b0dd0SVladimir Oltean \ 114b68b0dd0SVladimir Oltean DSA_SKB_CB_COPY(clone, skb); \ 115b68b0dd0SVladimir Oltean DSA_SKB_CB(skb)->clone = clone; \ 116b68b0dd0SVladimir Oltean } 117b68b0dd0SVladimir Oltean 118cf50dcc2SBen Hutchings struct dsa_switch_tree { 11983c0afaeSAndrew Lunn struct list_head list; 12083c0afaeSAndrew Lunn 121f515f192SVivien Didelot /* Notifier chain for switch-wide events */ 122f515f192SVivien Didelot struct raw_notifier_head nh; 123f515f192SVivien Didelot 12483c0afaeSAndrew Lunn /* Tree identifier */ 12549463b7fSVivien Didelot unsigned int index; 12683c0afaeSAndrew Lunn 12783c0afaeSAndrew Lunn /* Number of switches attached to this tree */ 12883c0afaeSAndrew Lunn struct kref refcount; 12983c0afaeSAndrew Lunn 13083c0afaeSAndrew Lunn /* Has this tree been applied to the hardware? */ 131ec15dd42SVivien Didelot bool setup; 13283c0afaeSAndrew Lunn 133cf50dcc2SBen Hutchings /* 134cf50dcc2SBen Hutchings * Configuration data for the platform device that owns 135cf50dcc2SBen Hutchings * this dsa switch tree instance. 136cf50dcc2SBen Hutchings */ 137cf50dcc2SBen Hutchings struct dsa_platform_data *pd; 138cf85d08fSLennert Buytenhek 139cf50dcc2SBen Hutchings /* 1408b0d3ea5SVivien Didelot * The switch port to which the CPU is attached. 141cf50dcc2SBen Hutchings */ 1428b0d3ea5SVivien Didelot struct dsa_port *cpu_dp; 143cf50dcc2SBen Hutchings 144cf50dcc2SBen Hutchings /* 145cf50dcc2SBen Hutchings * Data for the individual switch chips. 146cf50dcc2SBen Hutchings */ 147cf50dcc2SBen Hutchings struct dsa_switch *ds[DSA_MAX_SWITCHES]; 148cf50dcc2SBen Hutchings }; 149cf50dcc2SBen Hutchings 150f50f2127SFlorian Fainelli /* TC matchall action types, only mirroring for now */ 151f50f2127SFlorian Fainelli enum dsa_port_mall_action_type { 152f50f2127SFlorian Fainelli DSA_PORT_MALL_MIRROR, 153f50f2127SFlorian Fainelli }; 154f50f2127SFlorian Fainelli 155f50f2127SFlorian Fainelli /* TC mirroring entry */ 156f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry { 157f50f2127SFlorian Fainelli u8 to_local_port; 158f50f2127SFlorian Fainelli bool ingress; 159f50f2127SFlorian Fainelli }; 160f50f2127SFlorian Fainelli 161f50f2127SFlorian Fainelli /* TC matchall entry */ 162f50f2127SFlorian Fainelli struct dsa_mall_tc_entry { 163f50f2127SFlorian Fainelli struct list_head list; 164f50f2127SFlorian Fainelli unsigned long cookie; 165f50f2127SFlorian Fainelli enum dsa_port_mall_action_type type; 166f50f2127SFlorian Fainelli union { 167f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry mirror; 168f50f2127SFlorian Fainelli }; 169f50f2127SFlorian Fainelli }; 170f50f2127SFlorian Fainelli 171f50f2127SFlorian Fainelli 172c8b09808SAndrew Lunn struct dsa_port { 173f8b8b1cdSVivien Didelot /* A CPU port is physically connected to a master device. 174f8b8b1cdSVivien Didelot * A user port exposed to userspace has a slave device. 175f8b8b1cdSVivien Didelot */ 176f8b8b1cdSVivien Didelot union { 177f8b8b1cdSVivien Didelot struct net_device *master; 178f8b8b1cdSVivien Didelot struct net_device *slave; 179f8b8b1cdSVivien Didelot }; 180f8b8b1cdSVivien Didelot 18115240248SVivien Didelot /* CPU port tagging operations used by master or slave devices */ 18215240248SVivien Didelot const struct dsa_device_ops *tag_ops; 18315240248SVivien Didelot 1843e41f93bSVivien Didelot /* Copies for faster access in master receive hot path */ 1853e41f93bSVivien Didelot struct dsa_switch_tree *dst; 1863e41f93bSVivien Didelot struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev, 1873e41f93bSVivien Didelot struct packet_type *pt); 188cc1939e4SVladimir Oltean bool (*filter)(const struct sk_buff *skb, struct net_device *dev); 1893e41f93bSVivien Didelot 190057cad2cSVivien Didelot enum { 191057cad2cSVivien Didelot DSA_PORT_TYPE_UNUSED = 0, 192057cad2cSVivien Didelot DSA_PORT_TYPE_CPU, 193057cad2cSVivien Didelot DSA_PORT_TYPE_DSA, 194057cad2cSVivien Didelot DSA_PORT_TYPE_USER, 195057cad2cSVivien Didelot } type; 196057cad2cSVivien Didelot 197818be848SVivien Didelot struct dsa_switch *ds; 198818be848SVivien Didelot unsigned int index; 19971e0bbdeSFlorian Fainelli const char *name; 20024a9332aSVivien Didelot const struct dsa_port *cpu_dp; 201a2c7023fSXiaofei Shen const char *mac; 202189b0d93SAndrew Lunn struct device_node *dn; 20334a79f63SVivien Didelot unsigned int ageing_time; 20433162e9aSVladimir Oltean bool vlan_filtering; 205732f794cSVivien Didelot u8 stp_state; 206a5e9a02eSVivien Didelot struct net_device *bridge_dev; 20796567d5dSAndrew Lunn struct devlink_port devlink_port; 208aab9c406SFlorian Fainelli struct phylink *pl; 20997a69a0dSVladimir Oltean 21097a69a0dSVladimir Oltean struct work_struct xmit_work; 21197a69a0dSVladimir Oltean struct sk_buff_head xmit_queue; 21297a69a0dSVladimir Oltean 21367dbb9d4SFlorian Fainelli /* 21467dbb9d4SFlorian Fainelli * Original copy of the master netdev ethtool_ops 21567dbb9d4SFlorian Fainelli */ 21667dbb9d4SFlorian Fainelli const struct ethtool_ops *orig_ethtool_ops; 217da7b9e9bSFlorian Fainelli 218da7b9e9bSFlorian Fainelli /* 219da7b9e9bSFlorian Fainelli * Original copy of the master netdev net_device_ops 220da7b9e9bSFlorian Fainelli */ 221da7b9e9bSFlorian Fainelli const struct net_device_ops *orig_ndo_ops; 222c8b09808SAndrew Lunn }; 223c8b09808SAndrew Lunn 224c8f0b869SBen Hutchings struct dsa_switch { 225c33063d6SAndrew Lunn struct device *dev; 226c33063d6SAndrew Lunn 227c8f0b869SBen Hutchings /* 228c8f0b869SBen Hutchings * Parent switch tree, and switch index. 229c8f0b869SBen Hutchings */ 230c8f0b869SBen Hutchings struct dsa_switch_tree *dst; 23199feaafcSVivien Didelot unsigned int index; 232c8f0b869SBen Hutchings 233f515f192SVivien Didelot /* Listener for switch fabric events */ 234f515f192SVivien Didelot struct notifier_block nb; 235f515f192SVivien Didelot 236c8f0b869SBen Hutchings /* 2377543a6d5SAndrew Lunn * Give the switch driver somewhere to hang its private data 2387543a6d5SAndrew Lunn * structure. 2397543a6d5SAndrew Lunn */ 2407543a6d5SAndrew Lunn void *priv; 2417543a6d5SAndrew Lunn 2427543a6d5SAndrew Lunn /* 243c8f0b869SBen Hutchings * Configuration data for this switch. 244c8f0b869SBen Hutchings */ 245ff04955cSAndrew Lunn struct dsa_chip_data *cd; 246c8f0b869SBen Hutchings 247c8f0b869SBen Hutchings /* 2489d490b4eSVivien Didelot * The switch operations. 249c8f0b869SBen Hutchings */ 250a82f67afSFlorian Fainelli const struct dsa_switch_ops *ops; 251c8f0b869SBen Hutchings 25266472fc0SAndrew Lunn /* 25366472fc0SAndrew Lunn * An array of which element [a] indicates which port on this 25466472fc0SAndrew Lunn * switch should be used to send packets to that are destined 25566472fc0SAndrew Lunn * for switch a. Can be NULL if there is only one switch chip. 25666472fc0SAndrew Lunn */ 25766472fc0SAndrew Lunn s8 rtable[DSA_MAX_SWITCHES]; 25866472fc0SAndrew Lunn 259c8f0b869SBen Hutchings /* 260c8f0b869SBen Hutchings * Slave mii_bus and devices for the individual ports. 261c8f0b869SBen Hutchings */ 2620d8bcdd3SFlorian Fainelli u32 phys_mii_mask; 263c8f0b869SBen Hutchings struct mii_bus *slave_mii_bus; 264a0c02161SVivien Didelot 2650f3da6afSVivien Didelot /* Ageing Time limits in msecs */ 2660f3da6afSVivien Didelot unsigned int ageing_time_min; 2670f3da6afSVivien Didelot unsigned int ageing_time_max; 2680f3da6afSVivien Didelot 26996567d5dSAndrew Lunn /* devlink used to represent this switch device */ 27096567d5dSAndrew Lunn struct devlink *devlink; 27196567d5dSAndrew Lunn 27255199df6SFlorian Fainelli /* Number of switch port queues */ 27355199df6SFlorian Fainelli unsigned int num_tx_queues; 27455199df6SFlorian Fainelli 2758f5d16f6SVladimir Oltean /* Disallow bridge core from requesting different VLAN awareness 2768f5d16f6SVladimir Oltean * settings on ports if not hardware-supported 2778f5d16f6SVladimir Oltean */ 2788f5d16f6SVladimir Oltean bool vlan_filtering_is_global; 2798f5d16f6SVladimir Oltean 28014574676SVladimir Oltean /* In case vlan_filtering_is_global is set, the VLAN awareness state 28114574676SVladimir Oltean * should be retrieved from here and not from the per-port settings. 28214574676SVladimir Oltean */ 28314574676SVladimir Oltean bool vlan_filtering; 28414574676SVladimir Oltean 2850015b80aSSalvatore Mesoraca unsigned long *bitmap; 2860015b80aSSalvatore Mesoraca unsigned long _bitmap; 2870015b80aSSalvatore Mesoraca 288a0c02161SVivien Didelot /* Dynamically allocated ports, keep last */ 289a0c02161SVivien Didelot size_t num_ports; 290a0c02161SVivien Didelot struct dsa_port ports[]; 291c8f0b869SBen Hutchings }; 292c8f0b869SBen Hutchings 293c38c5a66SVivien Didelot static inline const struct dsa_port *dsa_to_port(struct dsa_switch *ds, int p) 294c38c5a66SVivien Didelot { 295c38c5a66SVivien Didelot return &ds->ports[p]; 296c38c5a66SVivien Didelot } 297c38c5a66SVivien Didelot 298bff7b688SVivien Didelot static inline bool dsa_is_unused_port(struct dsa_switch *ds, int p) 299bff7b688SVivien Didelot { 300c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_UNUSED; 301bff7b688SVivien Didelot } 302bff7b688SVivien Didelot 303c8f0b869SBen Hutchings static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p) 304c8f0b869SBen Hutchings { 305c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_CPU; 306c8f0b869SBen Hutchings } 307c8f0b869SBen Hutchings 30860045cbfSAndrew Lunn static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p) 30960045cbfSAndrew Lunn { 310c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_DSA; 31160045cbfSAndrew Lunn } 31260045cbfSAndrew Lunn 3132b3e9891SVivien Didelot static inline bool dsa_is_user_port(struct dsa_switch *ds, int p) 3146cd456f3SVivien Didelot { 315c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_USER; 3166cd456f3SVivien Didelot } 3176cd456f3SVivien Didelot 31802bc6e54SVivien Didelot static inline u32 dsa_user_ports(struct dsa_switch *ds) 31902bc6e54SVivien Didelot { 320c38c5a66SVivien Didelot u32 mask = 0; 321c38c5a66SVivien Didelot int p; 32202bc6e54SVivien Didelot 323c38c5a66SVivien Didelot for (p = 0; p < ds->num_ports; p++) 324c38c5a66SVivien Didelot if (dsa_is_user_port(ds, p)) 325c38c5a66SVivien Didelot mask |= BIT(p); 326c38c5a66SVivien Didelot 327c38c5a66SVivien Didelot return mask; 328c8652c83SVivien Didelot } 329c8652c83SVivien Didelot 3303b8fac5dSVivien Didelot /* Return the local port used to reach an arbitrary switch port */ 3313b8fac5dSVivien Didelot static inline unsigned int dsa_towards_port(struct dsa_switch *ds, int device, 3323b8fac5dSVivien Didelot int port) 3333b8fac5dSVivien Didelot { 3343b8fac5dSVivien Didelot if (device == ds->index) 3353b8fac5dSVivien Didelot return port; 3363b8fac5dSVivien Didelot else 3373b8fac5dSVivien Didelot return ds->rtable[device]; 3383b8fac5dSVivien Didelot } 3393b8fac5dSVivien Didelot 3403b8fac5dSVivien Didelot /* Return the local port used to reach the dedicated CPU port */ 34107073c79SVivien Didelot static inline unsigned int dsa_upstream_port(struct dsa_switch *ds, int port) 342c8f0b869SBen Hutchings { 34307073c79SVivien Didelot const struct dsa_port *dp = dsa_to_port(ds, port); 34407073c79SVivien Didelot const struct dsa_port *cpu_dp = dp->cpu_dp; 34507073c79SVivien Didelot 34607073c79SVivien Didelot if (!cpu_dp) 34707073c79SVivien Didelot return port; 348c8f0b869SBen Hutchings 3493b8fac5dSVivien Didelot return dsa_towards_port(ds, cpu_dp->ds->index, cpu_dp->index); 350c8f0b869SBen Hutchings } 351c8f0b869SBen Hutchings 352cf2d45f5SVladimir Oltean static inline bool dsa_port_is_vlan_filtering(const struct dsa_port *dp) 353cf2d45f5SVladimir Oltean { 354cf2d45f5SVladimir Oltean const struct dsa_switch *ds = dp->ds; 355cf2d45f5SVladimir Oltean 356cf2d45f5SVladimir Oltean if (ds->vlan_filtering_is_global) 357cf2d45f5SVladimir Oltean return ds->vlan_filtering; 358cf2d45f5SVladimir Oltean else 359cf2d45f5SVladimir Oltean return dp->vlan_filtering; 360cf2d45f5SVladimir Oltean } 361cf2d45f5SVladimir Oltean 3622bedde1aSArkadi Sharshevsky typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid, 3632bedde1aSArkadi Sharshevsky bool is_static, void *data); 3649d490b4eSVivien Didelot struct dsa_switch_ops { 3655ed4e3ebSFlorian Fainelli enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds, 3665ed4e3ebSFlorian Fainelli int port); 3677b314362SAndrew Lunn 368c8f0b869SBen Hutchings int (*setup)(struct dsa_switch *ds); 3696819563eSFlorian Fainelli u32 (*get_phy_flags)(struct dsa_switch *ds, int port); 370c8f0b869SBen Hutchings 371c8f0b869SBen Hutchings /* 372c8f0b869SBen Hutchings * Access to the switch's PHY registers. 373c8f0b869SBen Hutchings */ 374c8f0b869SBen Hutchings int (*phy_read)(struct dsa_switch *ds, int port, int regnum); 375c8f0b869SBen Hutchings int (*phy_write)(struct dsa_switch *ds, int port, 376c8f0b869SBen Hutchings int regnum, u16 val); 377c8f0b869SBen Hutchings 378c8f0b869SBen Hutchings /* 379ec9436baSFlorian Fainelli * Link state adjustment (called from libphy) 380ec9436baSFlorian Fainelli */ 381ec9436baSFlorian Fainelli void (*adjust_link)(struct dsa_switch *ds, int port, 382ec9436baSFlorian Fainelli struct phy_device *phydev); 383ce31b31cSFlorian Fainelli void (*fixed_link_update)(struct dsa_switch *ds, int port, 384ce31b31cSFlorian Fainelli struct fixed_phy_status *st); 385ec9436baSFlorian Fainelli 386ec9436baSFlorian Fainelli /* 38711d8f3ddSFlorian Fainelli * PHYLINK integration 38811d8f3ddSFlorian Fainelli */ 38911d8f3ddSFlorian Fainelli void (*phylink_validate)(struct dsa_switch *ds, int port, 39011d8f3ddSFlorian Fainelli unsigned long *supported, 39111d8f3ddSFlorian Fainelli struct phylink_link_state *state); 39211d8f3ddSFlorian Fainelli int (*phylink_mac_link_state)(struct dsa_switch *ds, int port, 39311d8f3ddSFlorian Fainelli struct phylink_link_state *state); 39411d8f3ddSFlorian Fainelli void (*phylink_mac_config)(struct dsa_switch *ds, int port, 39511d8f3ddSFlorian Fainelli unsigned int mode, 39611d8f3ddSFlorian Fainelli const struct phylink_link_state *state); 39711d8f3ddSFlorian Fainelli void (*phylink_mac_an_restart)(struct dsa_switch *ds, int port); 39811d8f3ddSFlorian Fainelli void (*phylink_mac_link_down)(struct dsa_switch *ds, int port, 39911d8f3ddSFlorian Fainelli unsigned int mode, 40011d8f3ddSFlorian Fainelli phy_interface_t interface); 40111d8f3ddSFlorian Fainelli void (*phylink_mac_link_up)(struct dsa_switch *ds, int port, 40211d8f3ddSFlorian Fainelli unsigned int mode, 40311d8f3ddSFlorian Fainelli phy_interface_t interface, 40411d8f3ddSFlorian Fainelli struct phy_device *phydev); 40511d8f3ddSFlorian Fainelli void (*phylink_fixed_state)(struct dsa_switch *ds, int port, 40611d8f3ddSFlorian Fainelli struct phylink_link_state *state); 40711d8f3ddSFlorian Fainelli /* 408c8f0b869SBen Hutchings * ethtool hardware statistics. 409c8f0b869SBen Hutchings */ 41089f09048SFlorian Fainelli void (*get_strings)(struct dsa_switch *ds, int port, 41189f09048SFlorian Fainelli u32 stringset, uint8_t *data); 412c8f0b869SBen Hutchings void (*get_ethtool_stats)(struct dsa_switch *ds, 413c8f0b869SBen Hutchings int port, uint64_t *data); 41489f09048SFlorian Fainelli int (*get_sset_count)(struct dsa_switch *ds, int port, int sset); 415cf963573SFlorian Fainelli void (*get_ethtool_phy_stats)(struct dsa_switch *ds, 416cf963573SFlorian Fainelli int port, uint64_t *data); 41724462549SFlorian Fainelli 41824462549SFlorian Fainelli /* 41919e57c4eSFlorian Fainelli * ethtool Wake-on-LAN 42019e57c4eSFlorian Fainelli */ 42119e57c4eSFlorian Fainelli void (*get_wol)(struct dsa_switch *ds, int port, 42219e57c4eSFlorian Fainelli struct ethtool_wolinfo *w); 42319e57c4eSFlorian Fainelli int (*set_wol)(struct dsa_switch *ds, int port, 42419e57c4eSFlorian Fainelli struct ethtool_wolinfo *w); 42519e57c4eSFlorian Fainelli 42619e57c4eSFlorian Fainelli /* 4270336369dSBrandon Streiff * ethtool timestamp info 4280336369dSBrandon Streiff */ 4290336369dSBrandon Streiff int (*get_ts_info)(struct dsa_switch *ds, int port, 4300336369dSBrandon Streiff struct ethtool_ts_info *ts); 4310336369dSBrandon Streiff 4320336369dSBrandon Streiff /* 43324462549SFlorian Fainelli * Suspend and resume 43424462549SFlorian Fainelli */ 43524462549SFlorian Fainelli int (*suspend)(struct dsa_switch *ds); 43624462549SFlorian Fainelli int (*resume)(struct dsa_switch *ds); 437b2f2af21SFlorian Fainelli 438b2f2af21SFlorian Fainelli /* 439b2f2af21SFlorian Fainelli * Port enable/disable 440b2f2af21SFlorian Fainelli */ 441b2f2af21SFlorian Fainelli int (*port_enable)(struct dsa_switch *ds, int port, 442b2f2af21SFlorian Fainelli struct phy_device *phy); 44375104db0SAndrew Lunn void (*port_disable)(struct dsa_switch *ds, int port); 4447905288fSFlorian Fainelli 4457905288fSFlorian Fainelli /* 44608f50061SVivien Didelot * Port's MAC EEE settings 4477905288fSFlorian Fainelli */ 44808f50061SVivien Didelot int (*set_mac_eee)(struct dsa_switch *ds, int port, 4497905288fSFlorian Fainelli struct ethtool_eee *e); 45008f50061SVivien Didelot int (*get_mac_eee)(struct dsa_switch *ds, int port, 4517905288fSFlorian Fainelli struct ethtool_eee *e); 45251579c3fSGuenter Roeck 4536793abb4SGuenter Roeck /* EEPROM access */ 4546793abb4SGuenter Roeck int (*get_eeprom_len)(struct dsa_switch *ds); 4556793abb4SGuenter Roeck int (*get_eeprom)(struct dsa_switch *ds, 4566793abb4SGuenter Roeck struct ethtool_eeprom *eeprom, u8 *data); 4576793abb4SGuenter Roeck int (*set_eeprom)(struct dsa_switch *ds, 4586793abb4SGuenter Roeck struct ethtool_eeprom *eeprom, u8 *data); 4593d762a0fSGuenter Roeck 4603d762a0fSGuenter Roeck /* 4613d762a0fSGuenter Roeck * Register access. 4623d762a0fSGuenter Roeck */ 4633d762a0fSGuenter Roeck int (*get_regs_len)(struct dsa_switch *ds, int port); 4643d762a0fSGuenter Roeck void (*get_regs)(struct dsa_switch *ds, int port, 4653d762a0fSGuenter Roeck struct ethtool_regs *regs, void *p); 466b73adef6SFlorian Fainelli 467b73adef6SFlorian Fainelli /* 468b73adef6SFlorian Fainelli * Bridge integration 469b73adef6SFlorian Fainelli */ 47034a79f63SVivien Didelot int (*set_ageing_time)(struct dsa_switch *ds, unsigned int msecs); 47171327a4eSVivien Didelot int (*port_bridge_join)(struct dsa_switch *ds, int port, 472a6692754SVivien Didelot struct net_device *bridge); 473f123f2fbSVivien Didelot void (*port_bridge_leave)(struct dsa_switch *ds, int port, 474f123f2fbSVivien Didelot struct net_device *bridge); 47543c44a9fSVivien Didelot void (*port_stp_state_set)(struct dsa_switch *ds, int port, 476b73adef6SFlorian Fainelli u8 state); 477732f794cSVivien Didelot void (*port_fast_age)(struct dsa_switch *ds, int port); 47857652796SRussell King int (*port_egress_floods)(struct dsa_switch *ds, int port, 47957652796SRussell King bool unicast, bool multicast); 4802a778e1bSVivien Didelot 4812a778e1bSVivien Didelot /* 48211149536SVivien Didelot * VLAN support 48311149536SVivien Didelot */ 484fb2dabadSVivien Didelot int (*port_vlan_filtering)(struct dsa_switch *ds, int port, 485fb2dabadSVivien Didelot bool vlan_filtering); 48676e398a6SVivien Didelot int (*port_vlan_prepare)(struct dsa_switch *ds, int port, 48780e02360SVivien Didelot const struct switchdev_obj_port_vlan *vlan); 4884d5770b3SVivien Didelot void (*port_vlan_add)(struct dsa_switch *ds, int port, 48980e02360SVivien Didelot const struct switchdev_obj_port_vlan *vlan); 49076e398a6SVivien Didelot int (*port_vlan_del)(struct dsa_switch *ds, int port, 49176e398a6SVivien Didelot const struct switchdev_obj_port_vlan *vlan); 49211149536SVivien Didelot /* 4932a778e1bSVivien Didelot * Forwarding database 4942a778e1bSVivien Didelot */ 4951b6dd556SArkadi Sharshevsky int (*port_fdb_add)(struct dsa_switch *ds, int port, 4966c2c1dcbSArkadi Sharshevsky const unsigned char *addr, u16 vid); 4972a778e1bSVivien Didelot int (*port_fdb_del)(struct dsa_switch *ds, int port, 4986c2c1dcbSArkadi Sharshevsky const unsigned char *addr, u16 vid); 499ea70ba98SVivien Didelot int (*port_fdb_dump)(struct dsa_switch *ds, int port, 5002bedde1aSArkadi Sharshevsky dsa_fdb_dump_cb_t *cb, void *data); 5018df30255SVivien Didelot 5028df30255SVivien Didelot /* 5038df30255SVivien Didelot * Multicast database 5048df30255SVivien Didelot */ 5058df30255SVivien Didelot int (*port_mdb_prepare)(struct dsa_switch *ds, int port, 5063709aadcSVivien Didelot const struct switchdev_obj_port_mdb *mdb); 5078df30255SVivien Didelot void (*port_mdb_add)(struct dsa_switch *ds, int port, 5083709aadcSVivien Didelot const struct switchdev_obj_port_mdb *mdb); 5098df30255SVivien Didelot int (*port_mdb_del)(struct dsa_switch *ds, int port, 5108df30255SVivien Didelot const struct switchdev_obj_port_mdb *mdb); 511bf9f2648SFlorian Fainelli /* 512bf9f2648SFlorian Fainelli * RXNFC 513bf9f2648SFlorian Fainelli */ 514bf9f2648SFlorian Fainelli int (*get_rxnfc)(struct dsa_switch *ds, int port, 515bf9f2648SFlorian Fainelli struct ethtool_rxnfc *nfc, u32 *rule_locs); 516bf9f2648SFlorian Fainelli int (*set_rxnfc)(struct dsa_switch *ds, int port, 517bf9f2648SFlorian Fainelli struct ethtool_rxnfc *nfc); 518f50f2127SFlorian Fainelli 519f50f2127SFlorian Fainelli /* 520f50f2127SFlorian Fainelli * TC integration 521f50f2127SFlorian Fainelli */ 522f50f2127SFlorian Fainelli int (*port_mirror_add)(struct dsa_switch *ds, int port, 523f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry *mirror, 524f50f2127SFlorian Fainelli bool ingress); 525f50f2127SFlorian Fainelli void (*port_mirror_del)(struct dsa_switch *ds, int port, 526f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry *mirror); 52740ef2c93SVivien Didelot 52840ef2c93SVivien Didelot /* 52940ef2c93SVivien Didelot * Cross-chip operations 53040ef2c93SVivien Didelot */ 53140ef2c93SVivien Didelot int (*crosschip_bridge_join)(struct dsa_switch *ds, int sw_index, 53240ef2c93SVivien Didelot int port, struct net_device *br); 53340ef2c93SVivien Didelot void (*crosschip_bridge_leave)(struct dsa_switch *ds, int sw_index, 53440ef2c93SVivien Didelot int port, struct net_device *br); 5350336369dSBrandon Streiff 5360336369dSBrandon Streiff /* 5370336369dSBrandon Streiff * PTP functionality 5380336369dSBrandon Streiff */ 5390336369dSBrandon Streiff int (*port_hwtstamp_get)(struct dsa_switch *ds, int port, 5400336369dSBrandon Streiff struct ifreq *ifr); 5410336369dSBrandon Streiff int (*port_hwtstamp_set)(struct dsa_switch *ds, int port, 5420336369dSBrandon Streiff struct ifreq *ifr); 54390af1059SBrandon Streiff bool (*port_txtstamp)(struct dsa_switch *ds, int port, 54490af1059SBrandon Streiff struct sk_buff *clone, unsigned int type); 54590af1059SBrandon Streiff bool (*port_rxtstamp)(struct dsa_switch *ds, int port, 54690af1059SBrandon Streiff struct sk_buff *skb, unsigned int type); 54797a69a0dSVladimir Oltean 54897a69a0dSVladimir Oltean /* 54997a69a0dSVladimir Oltean * Deferred frame Tx 55097a69a0dSVladimir Oltean */ 55197a69a0dSVladimir Oltean netdev_tx_t (*port_deferred_xmit)(struct dsa_switch *ds, int port, 55297a69a0dSVladimir Oltean struct sk_buff *skb); 553c8f0b869SBen Hutchings }; 554c8f0b869SBen Hutchings 555ab3d408dSFlorian Fainelli struct dsa_switch_driver { 556ab3d408dSFlorian Fainelli struct list_head list; 557a82f67afSFlorian Fainelli const struct dsa_switch_ops *ops; 558ab3d408dSFlorian Fainelli }; 559ab3d408dSFlorian Fainelli 56014b89f36SFlorian Fainelli struct net_device *dsa_dev_to_net_device(struct device *dev); 561c8f0b869SBen Hutchings 56273a7ece8SVivien Didelot /* Keep inline for faster access in hot path */ 563c6e970a0SAndrew Lunn static inline bool netdev_uses_dsa(struct net_device *dev) 564c6e970a0SAndrew Lunn { 565c6e970a0SAndrew Lunn #if IS_ENABLED(CONFIG_NET_DSA) 566717ffbfbSVivien Didelot return dev->dsa_ptr && dev->dsa_ptr->rcv; 567c6e970a0SAndrew Lunn #endif 568c6e970a0SAndrew Lunn return false; 569c6e970a0SAndrew Lunn } 570c6e970a0SAndrew Lunn 571cc1939e4SVladimir Oltean static inline bool dsa_can_decode(const struct sk_buff *skb, 572cc1939e4SVladimir Oltean struct net_device *dev) 573cc1939e4SVladimir Oltean { 574cc1939e4SVladimir Oltean #if IS_ENABLED(CONFIG_NET_DSA) 575cc1939e4SVladimir Oltean return !dev->dsa_ptr->filter || dev->dsa_ptr->filter(skb, dev); 576cc1939e4SVladimir Oltean #endif 577cc1939e4SVladimir Oltean return false; 578cc1939e4SVladimir Oltean } 579cc1939e4SVladimir Oltean 580a0c02161SVivien Didelot struct dsa_switch *dsa_switch_alloc(struct device *dev, size_t n); 58183c0afaeSAndrew Lunn void dsa_unregister_switch(struct dsa_switch *ds); 58223c9ee49SVivien Didelot int dsa_register_switch(struct dsa_switch *ds); 583ea825e70SFlorian Fainelli #ifdef CONFIG_PM_SLEEP 584ea825e70SFlorian Fainelli int dsa_switch_suspend(struct dsa_switch *ds); 585ea825e70SFlorian Fainelli int dsa_switch_resume(struct dsa_switch *ds); 586ea825e70SFlorian Fainelli #else 587ea825e70SFlorian Fainelli static inline int dsa_switch_suspend(struct dsa_switch *ds) 588ea825e70SFlorian Fainelli { 589ea825e70SFlorian Fainelli return 0; 590ea825e70SFlorian Fainelli } 591ea825e70SFlorian Fainelli static inline int dsa_switch_resume(struct dsa_switch *ds) 592ea825e70SFlorian Fainelli { 593ea825e70SFlorian Fainelli return 0; 594ea825e70SFlorian Fainelli } 595ea825e70SFlorian Fainelli #endif /* CONFIG_PM_SLEEP */ 596ea825e70SFlorian Fainelli 59760724d4bSFlorian Fainelli enum dsa_notifier_type { 59860724d4bSFlorian Fainelli DSA_PORT_REGISTER, 59960724d4bSFlorian Fainelli DSA_PORT_UNREGISTER, 60060724d4bSFlorian Fainelli }; 60160724d4bSFlorian Fainelli 60260724d4bSFlorian Fainelli struct dsa_notifier_info { 60360724d4bSFlorian Fainelli struct net_device *dev; 60460724d4bSFlorian Fainelli }; 60560724d4bSFlorian Fainelli 60660724d4bSFlorian Fainelli struct dsa_notifier_register_info { 60760724d4bSFlorian Fainelli struct dsa_notifier_info info; /* must be first */ 60860724d4bSFlorian Fainelli struct net_device *master; 60960724d4bSFlorian Fainelli unsigned int port_number; 61060724d4bSFlorian Fainelli unsigned int switch_number; 61160724d4bSFlorian Fainelli }; 61260724d4bSFlorian Fainelli 61360724d4bSFlorian Fainelli static inline struct net_device * 61460724d4bSFlorian Fainelli dsa_notifier_info_to_dev(const struct dsa_notifier_info *info) 61560724d4bSFlorian Fainelli { 61660724d4bSFlorian Fainelli return info->dev; 61760724d4bSFlorian Fainelli } 61860724d4bSFlorian Fainelli 61960724d4bSFlorian Fainelli #if IS_ENABLED(CONFIG_NET_DSA) 62060724d4bSFlorian Fainelli int register_dsa_notifier(struct notifier_block *nb); 62160724d4bSFlorian Fainelli int unregister_dsa_notifier(struct notifier_block *nb); 62260724d4bSFlorian Fainelli int call_dsa_notifiers(unsigned long val, struct net_device *dev, 62360724d4bSFlorian Fainelli struct dsa_notifier_info *info); 62460724d4bSFlorian Fainelli #else 62560724d4bSFlorian Fainelli static inline int register_dsa_notifier(struct notifier_block *nb) 62660724d4bSFlorian Fainelli { 62760724d4bSFlorian Fainelli return 0; 62860724d4bSFlorian Fainelli } 62960724d4bSFlorian Fainelli 63060724d4bSFlorian Fainelli static inline int unregister_dsa_notifier(struct notifier_block *nb) 63160724d4bSFlorian Fainelli { 63260724d4bSFlorian Fainelli return 0; 63360724d4bSFlorian Fainelli } 63460724d4bSFlorian Fainelli 63560724d4bSFlorian Fainelli static inline int call_dsa_notifiers(unsigned long val, struct net_device *dev, 63660724d4bSFlorian Fainelli struct dsa_notifier_info *info) 63760724d4bSFlorian Fainelli { 63860724d4bSFlorian Fainelli return NOTIFY_DONE; 63960724d4bSFlorian Fainelli } 64060724d4bSFlorian Fainelli #endif 64160724d4bSFlorian Fainelli 6420a5f14ceSFlorian Fainelli /* Broadcom tag specific helpers to insert and extract queue/port number */ 6430a5f14ceSFlorian Fainelli #define BRCM_TAG_SET_PORT_QUEUE(p, q) ((p) << 8 | q) 6440a5f14ceSFlorian Fainelli #define BRCM_TAG_GET_PORT(v) ((v) >> 8) 6450a5f14ceSFlorian Fainelli #define BRCM_TAG_GET_QUEUE(v) ((v) & 0xff) 6460a5f14ceSFlorian Fainelli 647cf963573SFlorian Fainelli 64897a69a0dSVladimir Oltean netdev_tx_t dsa_enqueue_skb(struct sk_buff *skb, struct net_device *dev); 649cf963573SFlorian Fainelli int dsa_port_get_phy_strings(struct dsa_port *dp, uint8_t *data); 650cf963573SFlorian Fainelli int dsa_port_get_ethtool_phy_stats(struct dsa_port *dp, uint64_t *data); 651cf963573SFlorian Fainelli int dsa_port_get_phy_sset_count(struct dsa_port *dp); 65211d8f3ddSFlorian Fainelli void dsa_port_phylink_mac_change(struct dsa_switch *ds, int port, bool up); 653cf963573SFlorian Fainelli 654d3b8c049SAndrew Lunn struct dsa_tag_driver { 655d3b8c049SAndrew Lunn const struct dsa_device_ops *ops; 656d3b8c049SAndrew Lunn struct list_head list; 657d3b8c049SAndrew Lunn struct module *owner; 658d3b8c049SAndrew Lunn }; 659d3b8c049SAndrew Lunn 660d3b8c049SAndrew Lunn void dsa_tag_drivers_register(struct dsa_tag_driver *dsa_tag_driver_array[], 661d3b8c049SAndrew Lunn unsigned int count, 662d3b8c049SAndrew Lunn struct module *owner); 663d3b8c049SAndrew Lunn void dsa_tag_drivers_unregister(struct dsa_tag_driver *dsa_tag_driver_array[], 664d3b8c049SAndrew Lunn unsigned int count); 665d3b8c049SAndrew Lunn 666d3b8c049SAndrew Lunn #define dsa_tag_driver_module_drivers(__dsa_tag_drivers_array, __count) \ 667d3b8c049SAndrew Lunn static int __init dsa_tag_driver_module_init(void) \ 668d3b8c049SAndrew Lunn { \ 669d3b8c049SAndrew Lunn dsa_tag_drivers_register(__dsa_tag_drivers_array, __count, \ 670d3b8c049SAndrew Lunn THIS_MODULE); \ 671d3b8c049SAndrew Lunn return 0; \ 672d3b8c049SAndrew Lunn } \ 673d3b8c049SAndrew Lunn module_init(dsa_tag_driver_module_init); \ 674d3b8c049SAndrew Lunn \ 675d3b8c049SAndrew Lunn static void __exit dsa_tag_driver_module_exit(void) \ 676d3b8c049SAndrew Lunn { \ 677d3b8c049SAndrew Lunn dsa_tag_drivers_unregister(__dsa_tag_drivers_array, __count); \ 678d3b8c049SAndrew Lunn } \ 679d3b8c049SAndrew Lunn module_exit(dsa_tag_driver_module_exit) 680d3b8c049SAndrew Lunn 681d3b8c049SAndrew Lunn /** 682d3b8c049SAndrew Lunn * module_dsa_tag_drivers() - Helper macro for registering DSA tag 683d3b8c049SAndrew Lunn * drivers 684d3b8c049SAndrew Lunn * @__ops_array: Array of tag driver strucutres 685d3b8c049SAndrew Lunn * 686d3b8c049SAndrew Lunn * Helper macro for DSA tag drivers which do not do anything special 687d3b8c049SAndrew Lunn * in module init/exit. Each module may only use this macro once, and 688d3b8c049SAndrew Lunn * calling it replaces module_init() and module_exit(). 689d3b8c049SAndrew Lunn */ 690d3b8c049SAndrew Lunn #define module_dsa_tag_drivers(__ops_array) \ 691d3b8c049SAndrew Lunn dsa_tag_driver_module_drivers(__ops_array, ARRAY_SIZE(__ops_array)) 692d3b8c049SAndrew Lunn 693d3b8c049SAndrew Lunn #define DSA_TAG_DRIVER_NAME(__ops) dsa_tag_driver ## _ ## __ops 694d3b8c049SAndrew Lunn 695d3b8c049SAndrew Lunn /* Create a static structure we can build a linked list of dsa_tag 696d3b8c049SAndrew Lunn * drivers 697d3b8c049SAndrew Lunn */ 698d3b8c049SAndrew Lunn #define DSA_TAG_DRIVER(__ops) \ 699d3b8c049SAndrew Lunn static struct dsa_tag_driver DSA_TAG_DRIVER_NAME(__ops) = { \ 700d3b8c049SAndrew Lunn .ops = &__ops, \ 701d3b8c049SAndrew Lunn } 702d3b8c049SAndrew Lunn 703d3b8c049SAndrew Lunn /** 704d3b8c049SAndrew Lunn * module_dsa_tag_driver() - Helper macro for registering a single DSA tag 705d3b8c049SAndrew Lunn * driver 706d3b8c049SAndrew Lunn * @__ops: Single tag driver structures 707d3b8c049SAndrew Lunn * 708d3b8c049SAndrew Lunn * Helper macro for DSA tag drivers which do not do anything special 709d3b8c049SAndrew Lunn * in module init/exit. Each module may only use this macro once, and 710d3b8c049SAndrew Lunn * calling it replaces module_init() and module_exit(). 711d3b8c049SAndrew Lunn */ 712d3b8c049SAndrew Lunn #define module_dsa_tag_driver(__ops) \ 713d3b8c049SAndrew Lunn DSA_TAG_DRIVER(__ops); \ 714d3b8c049SAndrew Lunn \ 715d3b8c049SAndrew Lunn static struct dsa_tag_driver *dsa_tag_driver_array[] = { \ 716d3b8c049SAndrew Lunn &DSA_TAG_DRIVER_NAME(__ops) \ 717d3b8c049SAndrew Lunn }; \ 718d3b8c049SAndrew Lunn module_dsa_tag_drivers(dsa_tag_driver_array) 71991da11f8SLennert Buytenhek #endif 720d3b8c049SAndrew Lunn 721