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 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, 64016e43a2STristram Ha DSA_TAG_PROTO_KSZ8795 = DSA_TAG_PROTO_KSZ8795_VALUE, 658dce89aaSVladimir Oltean DSA_TAG_PROTO_OCELOT = DSA_TAG_PROTO_OCELOT_VALUE, 6648fda74fSOleksij Rempel DSA_TAG_PROTO_AR9331 = DSA_TAG_PROTO_AR9331_VALUE, 67efd7fe68SLinus Walleij DSA_TAG_PROTO_RTL4_A = DSA_TAG_PROTO_RTL4_A_VALUE, 68ac7a04c3SFlorian Fainelli }; 695037d532SFlorian Fainelli 705075314eSAlexander Duyck struct packet_type; 7190af1059SBrandon Streiff struct dsa_switch; 723e8a72d1SFlorian Fainelli 7368277a2cSJohn Crispin struct dsa_device_ops { 7468277a2cSJohn Crispin struct sk_buff *(*xmit)(struct sk_buff *skb, struct net_device *dev); 7568277a2cSJohn Crispin struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev, 7689e49506SFlorian Westphal struct packet_type *pt); 77598a9680SJohn Crispin int (*flow_dissect)(const struct sk_buff *skb, __be16 *proto, 78598a9680SJohn Crispin int *offset); 79cc1939e4SVladimir Oltean /* Used to determine which traffic should match the DSA filter in 80cc1939e4SVladimir Oltean * eth_type_trans, and which, if any, should bypass it and be processed 81cc1939e4SVladimir Oltean * as regular on the master net device. 82cc1939e4SVladimir Oltean */ 83cc1939e4SVladimir Oltean bool (*filter)(const struct sk_buff *skb, struct net_device *dev); 84a5dd3087SAndrew Lunn unsigned int overhead; 85875138f8SAndrew Lunn const char *name; 86056eed2fSAndrew Lunn enum dsa_tag_protocol proto; 8768277a2cSJohn Crispin }; 8868277a2cSJohn Crispin 894cfab356SFlorian Fainelli /* This structure defines the control interfaces that are overlayed by the 904cfab356SFlorian Fainelli * DSA layer on top of the DSA CPU/management net_device instance. This is 914cfab356SFlorian Fainelli * used by the core net_device layer while calling various net_device_ops 924cfab356SFlorian Fainelli * function pointers. 934cfab356SFlorian Fainelli */ 944cfab356SFlorian Fainelli struct dsa_netdevice_ops { 954cfab356SFlorian Fainelli int (*ndo_do_ioctl)(struct net_device *dev, struct ifreq *ifr, 964cfab356SFlorian Fainelli int cmd); 974cfab356SFlorian Fainelli }; 984cfab356SFlorian Fainelli 990b42f033SAndrew Lunn #define DSA_TAG_DRIVER_ALIAS "dsa_tag-" 1000b42f033SAndrew Lunn #define MODULE_ALIAS_DSA_TAG_DRIVER(__proto) \ 1010b42f033SAndrew Lunn MODULE_ALIAS(DSA_TAG_DRIVER_ALIAS __stringify(__proto##_VALUE)) 1020b42f033SAndrew Lunn 103b68b0dd0SVladimir Oltean struct dsa_skb_cb { 104b68b0dd0SVladimir Oltean struct sk_buff *clone; 105b68b0dd0SVladimir Oltean }; 106b68b0dd0SVladimir Oltean 107b68b0dd0SVladimir Oltean struct __dsa_skb_cb { 108b68b0dd0SVladimir Oltean struct dsa_skb_cb cb; 109b68b0dd0SVladimir Oltean u8 priv[48 - sizeof(struct dsa_skb_cb)]; 110b68b0dd0SVladimir Oltean }; 111b68b0dd0SVladimir Oltean 112b68b0dd0SVladimir Oltean #define DSA_SKB_CB(skb) ((struct dsa_skb_cb *)((skb)->cb)) 113b68b0dd0SVladimir Oltean 114b68b0dd0SVladimir Oltean #define DSA_SKB_CB_PRIV(skb) \ 115b68b0dd0SVladimir Oltean ((void *)(skb)->cb + offsetof(struct __dsa_skb_cb, priv)) 116b68b0dd0SVladimir Oltean 117cf50dcc2SBen Hutchings struct dsa_switch_tree { 11883c0afaeSAndrew Lunn struct list_head list; 11983c0afaeSAndrew Lunn 120f515f192SVivien Didelot /* Notifier chain for switch-wide events */ 121f515f192SVivien Didelot struct raw_notifier_head nh; 122f515f192SVivien Didelot 12383c0afaeSAndrew Lunn /* Tree identifier */ 12449463b7fSVivien Didelot unsigned int index; 12583c0afaeSAndrew Lunn 12683c0afaeSAndrew Lunn /* Number of switches attached to this tree */ 12783c0afaeSAndrew Lunn struct kref refcount; 12883c0afaeSAndrew Lunn 12983c0afaeSAndrew Lunn /* Has this tree been applied to the hardware? */ 130ec15dd42SVivien Didelot bool setup; 13183c0afaeSAndrew Lunn 132cf50dcc2SBen Hutchings /* 133cf50dcc2SBen Hutchings * Configuration data for the platform device that owns 134cf50dcc2SBen Hutchings * this dsa switch tree instance. 135cf50dcc2SBen Hutchings */ 136cf50dcc2SBen Hutchings struct dsa_platform_data *pd; 137cf85d08fSLennert Buytenhek 138ab8ccae1SVivien Didelot /* List of switch ports */ 139ab8ccae1SVivien Didelot struct list_head ports; 140ab8ccae1SVivien Didelot 141c5f51765SVivien Didelot /* List of DSA links composing the routing table */ 142c5f51765SVivien Didelot struct list_head rtable; 143cf50dcc2SBen Hutchings }; 144cf50dcc2SBen Hutchings 14534297176SVladimir Oltean /* TC matchall action types */ 146f50f2127SFlorian Fainelli enum dsa_port_mall_action_type { 147f50f2127SFlorian Fainelli DSA_PORT_MALL_MIRROR, 14834297176SVladimir Oltean DSA_PORT_MALL_POLICER, 149f50f2127SFlorian Fainelli }; 150f50f2127SFlorian Fainelli 151f50f2127SFlorian Fainelli /* TC mirroring entry */ 152f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry { 153f50f2127SFlorian Fainelli u8 to_local_port; 154f50f2127SFlorian Fainelli bool ingress; 155f50f2127SFlorian Fainelli }; 156f50f2127SFlorian Fainelli 15734297176SVladimir Oltean /* TC port policer entry */ 15834297176SVladimir Oltean struct dsa_mall_policer_tc_entry { 1595f035af7SPo Liu u32 burst; 16034297176SVladimir Oltean u64 rate_bytes_per_sec; 16134297176SVladimir Oltean }; 16234297176SVladimir Oltean 163f50f2127SFlorian Fainelli /* TC matchall entry */ 164f50f2127SFlorian Fainelli struct dsa_mall_tc_entry { 165f50f2127SFlorian Fainelli struct list_head list; 166f50f2127SFlorian Fainelli unsigned long cookie; 167f50f2127SFlorian Fainelli enum dsa_port_mall_action_type type; 168f50f2127SFlorian Fainelli union { 169f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry mirror; 17034297176SVladimir Oltean struct dsa_mall_policer_tc_entry policer; 171f50f2127SFlorian Fainelli }; 172f50f2127SFlorian Fainelli }; 173f50f2127SFlorian Fainelli 174f50f2127SFlorian Fainelli 175c8b09808SAndrew Lunn struct dsa_port { 176f8b8b1cdSVivien Didelot /* A CPU port is physically connected to a master device. 177f8b8b1cdSVivien Didelot * A user port exposed to userspace has a slave device. 178f8b8b1cdSVivien Didelot */ 179f8b8b1cdSVivien Didelot union { 180f8b8b1cdSVivien Didelot struct net_device *master; 181f8b8b1cdSVivien Didelot struct net_device *slave; 182f8b8b1cdSVivien Didelot }; 183f8b8b1cdSVivien Didelot 18415240248SVivien Didelot /* CPU port tagging operations used by master or slave devices */ 18515240248SVivien Didelot const struct dsa_device_ops *tag_ops; 18615240248SVivien Didelot 1873e41f93bSVivien Didelot /* Copies for faster access in master receive hot path */ 1883e41f93bSVivien Didelot struct dsa_switch_tree *dst; 1893e41f93bSVivien Didelot struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev, 1903e41f93bSVivien Didelot struct packet_type *pt); 191cc1939e4SVladimir Oltean bool (*filter)(const struct sk_buff *skb, struct net_device *dev); 1923e41f93bSVivien Didelot 193057cad2cSVivien Didelot enum { 194057cad2cSVivien Didelot DSA_PORT_TYPE_UNUSED = 0, 195057cad2cSVivien Didelot DSA_PORT_TYPE_CPU, 196057cad2cSVivien Didelot DSA_PORT_TYPE_DSA, 197057cad2cSVivien Didelot DSA_PORT_TYPE_USER, 198057cad2cSVivien Didelot } type; 199057cad2cSVivien Didelot 200818be848SVivien Didelot struct dsa_switch *ds; 201818be848SVivien Didelot unsigned int index; 20271e0bbdeSFlorian Fainelli const char *name; 20368b2d4a8SVivien Didelot struct dsa_port *cpu_dp; 204a2c7023fSXiaofei Shen const char *mac; 205189b0d93SAndrew Lunn struct device_node *dn; 20634a79f63SVivien Didelot unsigned int ageing_time; 20733162e9aSVladimir Oltean bool vlan_filtering; 208732f794cSVivien Didelot u8 stp_state; 209a5e9a02eSVivien Didelot struct net_device *bridge_dev; 21096567d5dSAndrew Lunn struct devlink_port devlink_port; 211aab9c406SFlorian Fainelli struct phylink *pl; 21244cc27e4SIoana Ciornei struct phylink_config pl_config; 21397a69a0dSVladimir Oltean 214ab8ccae1SVivien Didelot struct list_head list; 215ab8ccae1SVivien Didelot 21667dbb9d4SFlorian Fainelli /* 217c362beb0SVladimir Oltean * Give the switch driver somewhere to hang its per-port private data 218c362beb0SVladimir Oltean * structures (accessible from the tagger). 219c362beb0SVladimir Oltean */ 220c362beb0SVladimir Oltean void *priv; 221c362beb0SVladimir Oltean 222c362beb0SVladimir Oltean /* 22367dbb9d4SFlorian Fainelli * Original copy of the master netdev ethtool_ops 22467dbb9d4SFlorian Fainelli */ 22567dbb9d4SFlorian Fainelli const struct ethtool_ops *orig_ethtool_ops; 226da7b9e9bSFlorian Fainelli 227da7b9e9bSFlorian Fainelli /* 228da7b9e9bSFlorian Fainelli * Original copy of the master netdev net_device_ops 229da7b9e9bSFlorian Fainelli */ 2304cfab356SFlorian Fainelli const struct dsa_netdevice_ops *netdev_ops; 231fb35c60cSVivien Didelot 232fb35c60cSVivien Didelot bool setup; 233c8b09808SAndrew Lunn }; 234c8b09808SAndrew Lunn 235c5f51765SVivien Didelot /* TODO: ideally DSA ports would have a single dp->link_dp member, 236c5f51765SVivien Didelot * and no dst->rtable nor this struct dsa_link would be needed, 237c5f51765SVivien Didelot * but this would require some more complex tree walking, 238c5f51765SVivien Didelot * so keep it stupid at the moment and list them all. 239c5f51765SVivien Didelot */ 240c5f51765SVivien Didelot struct dsa_link { 241c5f51765SVivien Didelot struct dsa_port *dp; 242c5f51765SVivien Didelot struct dsa_port *link_dp; 243c5f51765SVivien Didelot struct list_head list; 244c5f51765SVivien Didelot }; 245c5f51765SVivien Didelot 246c8f0b869SBen Hutchings struct dsa_switch { 247fb35c60cSVivien Didelot bool setup; 248fb35c60cSVivien Didelot 249c33063d6SAndrew Lunn struct device *dev; 250c33063d6SAndrew Lunn 251c8f0b869SBen Hutchings /* 252c8f0b869SBen Hutchings * Parent switch tree, and switch index. 253c8f0b869SBen Hutchings */ 254c8f0b869SBen Hutchings struct dsa_switch_tree *dst; 25599feaafcSVivien Didelot unsigned int index; 256c8f0b869SBen Hutchings 257f515f192SVivien Didelot /* Listener for switch fabric events */ 258f515f192SVivien Didelot struct notifier_block nb; 259f515f192SVivien Didelot 260c8f0b869SBen Hutchings /* 2617543a6d5SAndrew Lunn * Give the switch driver somewhere to hang its private data 2627543a6d5SAndrew Lunn * structure. 2637543a6d5SAndrew Lunn */ 2647543a6d5SAndrew Lunn void *priv; 2657543a6d5SAndrew Lunn 2667543a6d5SAndrew Lunn /* 267c8f0b869SBen Hutchings * Configuration data for this switch. 268c8f0b869SBen Hutchings */ 269ff04955cSAndrew Lunn struct dsa_chip_data *cd; 270c8f0b869SBen Hutchings 271c8f0b869SBen Hutchings /* 2729d490b4eSVivien Didelot * The switch operations. 273c8f0b869SBen Hutchings */ 274a82f67afSFlorian Fainelli const struct dsa_switch_ops *ops; 275c8f0b869SBen Hutchings 27666472fc0SAndrew Lunn /* 277c8f0b869SBen Hutchings * Slave mii_bus and devices for the individual ports. 278c8f0b869SBen Hutchings */ 2790d8bcdd3SFlorian Fainelli u32 phys_mii_mask; 280c8f0b869SBen Hutchings struct mii_bus *slave_mii_bus; 281a0c02161SVivien Didelot 2820f3da6afSVivien Didelot /* Ageing Time limits in msecs */ 2830f3da6afSVivien Didelot unsigned int ageing_time_min; 2840f3da6afSVivien Didelot unsigned int ageing_time_max; 2850f3da6afSVivien Didelot 28696567d5dSAndrew Lunn /* devlink used to represent this switch device */ 28796567d5dSAndrew Lunn struct devlink *devlink; 28896567d5dSAndrew Lunn 28955199df6SFlorian Fainelli /* Number of switch port queues */ 29055199df6SFlorian Fainelli unsigned int num_tx_queues; 29155199df6SFlorian Fainelli 2928f5d16f6SVladimir Oltean /* Disallow bridge core from requesting different VLAN awareness 2938f5d16f6SVladimir Oltean * settings on ports if not hardware-supported 2948f5d16f6SVladimir Oltean */ 2958f5d16f6SVladimir Oltean bool vlan_filtering_is_global; 2968f5d16f6SVladimir Oltean 29754a0ed0dSRussell King /* Pass .port_vlan_add and .port_vlan_del to drivers even for bridges 29854a0ed0dSRussell King * that have vlan_filtering=0. All drivers should ideally set this (and 29954a0ed0dSRussell King * then the option would get removed), but it is unknown whether this 30054a0ed0dSRussell King * would break things or not. 30154a0ed0dSRussell King */ 30254a0ed0dSRussell King bool configure_vlan_while_not_filtering; 30354a0ed0dSRussell King 30414574676SVladimir Oltean /* In case vlan_filtering_is_global is set, the VLAN awareness state 30514574676SVladimir Oltean * should be retrieved from here and not from the per-port settings. 30614574676SVladimir Oltean */ 30714574676SVladimir Oltean bool vlan_filtering; 30814574676SVladimir Oltean 309787cac3fSVladimir Oltean /* MAC PCS does not provide link state change interrupt, and requires 310787cac3fSVladimir Oltean * polling. Flag passed on to PHYLINK. 311787cac3fSVladimir Oltean */ 312787cac3fSVladimir Oltean bool pcs_poll; 313787cac3fSVladimir Oltean 314bff33f7eSVladimir Oltean /* For switches that only have the MRU configurable. To ensure the 315bff33f7eSVladimir Oltean * configured MTU is not exceeded, normalization of MRU on all bridged 316bff33f7eSVladimir Oltean * interfaces is needed. 317bff33f7eSVladimir Oltean */ 318bff33f7eSVladimir Oltean bool mtu_enforcement_ingress; 319bff33f7eSVladimir Oltean 320a0c02161SVivien Didelot size_t num_ports; 321c8f0b869SBen Hutchings }; 322c8f0b869SBen Hutchings 32368bb8ea8SVivien Didelot static inline struct dsa_port *dsa_to_port(struct dsa_switch *ds, int p) 324c38c5a66SVivien Didelot { 325b96ddf25SVivien Didelot struct dsa_switch_tree *dst = ds->dst; 326d607525bSVivien Didelot struct dsa_port *dp; 327b96ddf25SVivien Didelot 328b96ddf25SVivien Didelot list_for_each_entry(dp, &dst->ports, list) 329b96ddf25SVivien Didelot if (dp->ds == ds && dp->index == p) 330b96ddf25SVivien Didelot return dp; 331d607525bSVivien Didelot 332d607525bSVivien Didelot return NULL; 333c38c5a66SVivien Didelot } 334c38c5a66SVivien Didelot 335bff7b688SVivien Didelot static inline bool dsa_is_unused_port(struct dsa_switch *ds, int p) 336bff7b688SVivien Didelot { 337c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_UNUSED; 338bff7b688SVivien Didelot } 339bff7b688SVivien Didelot 340c8f0b869SBen Hutchings static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p) 341c8f0b869SBen Hutchings { 342c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_CPU; 343c8f0b869SBen Hutchings } 344c8f0b869SBen Hutchings 34560045cbfSAndrew Lunn static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p) 34660045cbfSAndrew Lunn { 347c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_DSA; 34860045cbfSAndrew Lunn } 34960045cbfSAndrew Lunn 3502b3e9891SVivien Didelot static inline bool dsa_is_user_port(struct dsa_switch *ds, int p) 3516cd456f3SVivien Didelot { 352c38c5a66SVivien Didelot return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_USER; 3536cd456f3SVivien Didelot } 3546cd456f3SVivien Didelot 35502bc6e54SVivien Didelot static inline u32 dsa_user_ports(struct dsa_switch *ds) 35602bc6e54SVivien Didelot { 357c38c5a66SVivien Didelot u32 mask = 0; 358c38c5a66SVivien Didelot int p; 35902bc6e54SVivien Didelot 360c38c5a66SVivien Didelot for (p = 0; p < ds->num_ports; p++) 361c38c5a66SVivien Didelot if (dsa_is_user_port(ds, p)) 362c38c5a66SVivien Didelot mask |= BIT(p); 363c38c5a66SVivien Didelot 364c38c5a66SVivien Didelot return mask; 365c8652c83SVivien Didelot } 366c8652c83SVivien Didelot 367c5f51765SVivien Didelot /* Return the local port used to reach an arbitrary switch device */ 368c5f51765SVivien Didelot static inline unsigned int dsa_routing_port(struct dsa_switch *ds, int device) 369c5f51765SVivien Didelot { 370c5f51765SVivien Didelot struct dsa_switch_tree *dst = ds->dst; 371c5f51765SVivien Didelot struct dsa_link *dl; 372c5f51765SVivien Didelot 373c5f51765SVivien Didelot list_for_each_entry(dl, &dst->rtable, list) 374c5f51765SVivien Didelot if (dl->dp->ds == ds && dl->link_dp->ds->index == device) 375c5f51765SVivien Didelot return dl->dp->index; 376c5f51765SVivien Didelot 377c5f51765SVivien Didelot return ds->num_ports; 378c5f51765SVivien Didelot } 379c5f51765SVivien Didelot 3803b8fac5dSVivien Didelot /* Return the local port used to reach an arbitrary switch port */ 3813b8fac5dSVivien Didelot static inline unsigned int dsa_towards_port(struct dsa_switch *ds, int device, 3823b8fac5dSVivien Didelot int port) 3833b8fac5dSVivien Didelot { 3843b8fac5dSVivien Didelot if (device == ds->index) 3853b8fac5dSVivien Didelot return port; 3863b8fac5dSVivien Didelot else 387c5f51765SVivien Didelot return dsa_routing_port(ds, device); 3883b8fac5dSVivien Didelot } 3893b8fac5dSVivien Didelot 3903b8fac5dSVivien Didelot /* Return the local port used to reach the dedicated CPU port */ 39107073c79SVivien Didelot static inline unsigned int dsa_upstream_port(struct dsa_switch *ds, int port) 392c8f0b869SBen Hutchings { 39307073c79SVivien Didelot const struct dsa_port *dp = dsa_to_port(ds, port); 39407073c79SVivien Didelot const struct dsa_port *cpu_dp = dp->cpu_dp; 39507073c79SVivien Didelot 39607073c79SVivien Didelot if (!cpu_dp) 39707073c79SVivien Didelot return port; 398c8f0b869SBen Hutchings 3993b8fac5dSVivien Didelot return dsa_towards_port(ds, cpu_dp->ds->index, cpu_dp->index); 400c8f0b869SBen Hutchings } 401c8f0b869SBen Hutchings 402cf2d45f5SVladimir Oltean static inline bool dsa_port_is_vlan_filtering(const struct dsa_port *dp) 403cf2d45f5SVladimir Oltean { 404cf2d45f5SVladimir Oltean const struct dsa_switch *ds = dp->ds; 405cf2d45f5SVladimir Oltean 406cf2d45f5SVladimir Oltean if (ds->vlan_filtering_is_global) 407cf2d45f5SVladimir Oltean return ds->vlan_filtering; 408cf2d45f5SVladimir Oltean else 409cf2d45f5SVladimir Oltean return dp->vlan_filtering; 410cf2d45f5SVladimir Oltean } 411cf2d45f5SVladimir Oltean 4122bedde1aSArkadi Sharshevsky typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid, 4132bedde1aSArkadi Sharshevsky bool is_static, void *data); 4149d490b4eSVivien Didelot struct dsa_switch_ops { 4155ed4e3ebSFlorian Fainelli enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds, 4164d776482SFlorian Fainelli int port, 4174d776482SFlorian Fainelli enum dsa_tag_protocol mprot); 4187b314362SAndrew Lunn 419c8f0b869SBen Hutchings int (*setup)(struct dsa_switch *ds); 4205e3f847aSVladimir Oltean void (*teardown)(struct dsa_switch *ds); 4216819563eSFlorian Fainelli u32 (*get_phy_flags)(struct dsa_switch *ds, int port); 422c8f0b869SBen Hutchings 423c8f0b869SBen Hutchings /* 424c8f0b869SBen Hutchings * Access to the switch's PHY registers. 425c8f0b869SBen Hutchings */ 426c8f0b869SBen Hutchings int (*phy_read)(struct dsa_switch *ds, int port, int regnum); 427c8f0b869SBen Hutchings int (*phy_write)(struct dsa_switch *ds, int port, 428c8f0b869SBen Hutchings int regnum, u16 val); 429c8f0b869SBen Hutchings 430c8f0b869SBen Hutchings /* 431ec9436baSFlorian Fainelli * Link state adjustment (called from libphy) 432ec9436baSFlorian Fainelli */ 433ec9436baSFlorian Fainelli void (*adjust_link)(struct dsa_switch *ds, int port, 434ec9436baSFlorian Fainelli struct phy_device *phydev); 435ce31b31cSFlorian Fainelli void (*fixed_link_update)(struct dsa_switch *ds, int port, 436ce31b31cSFlorian Fainelli struct fixed_phy_status *st); 437ec9436baSFlorian Fainelli 438ec9436baSFlorian Fainelli /* 43911d8f3ddSFlorian Fainelli * PHYLINK integration 44011d8f3ddSFlorian Fainelli */ 44111d8f3ddSFlorian Fainelli void (*phylink_validate)(struct dsa_switch *ds, int port, 44211d8f3ddSFlorian Fainelli unsigned long *supported, 44311d8f3ddSFlorian Fainelli struct phylink_link_state *state); 44411d8f3ddSFlorian Fainelli int (*phylink_mac_link_state)(struct dsa_switch *ds, int port, 44511d8f3ddSFlorian Fainelli struct phylink_link_state *state); 44611d8f3ddSFlorian Fainelli void (*phylink_mac_config)(struct dsa_switch *ds, int port, 44711d8f3ddSFlorian Fainelli unsigned int mode, 44811d8f3ddSFlorian Fainelli const struct phylink_link_state *state); 44911d8f3ddSFlorian Fainelli void (*phylink_mac_an_restart)(struct dsa_switch *ds, int port); 45011d8f3ddSFlorian Fainelli void (*phylink_mac_link_down)(struct dsa_switch *ds, int port, 45111d8f3ddSFlorian Fainelli unsigned int mode, 45211d8f3ddSFlorian Fainelli phy_interface_t interface); 45311d8f3ddSFlorian Fainelli void (*phylink_mac_link_up)(struct dsa_switch *ds, int port, 45411d8f3ddSFlorian Fainelli unsigned int mode, 45511d8f3ddSFlorian Fainelli phy_interface_t interface, 4565b502a7bSRussell King struct phy_device *phydev, 4575b502a7bSRussell King int speed, int duplex, 4585b502a7bSRussell King bool tx_pause, bool rx_pause); 45911d8f3ddSFlorian Fainelli void (*phylink_fixed_state)(struct dsa_switch *ds, int port, 46011d8f3ddSFlorian Fainelli struct phylink_link_state *state); 46111d8f3ddSFlorian Fainelli /* 462c8f0b869SBen Hutchings * ethtool hardware statistics. 463c8f0b869SBen Hutchings */ 46489f09048SFlorian Fainelli void (*get_strings)(struct dsa_switch *ds, int port, 46589f09048SFlorian Fainelli u32 stringset, uint8_t *data); 466c8f0b869SBen Hutchings void (*get_ethtool_stats)(struct dsa_switch *ds, 467c8f0b869SBen Hutchings int port, uint64_t *data); 46889f09048SFlorian Fainelli int (*get_sset_count)(struct dsa_switch *ds, int port, int sset); 469cf963573SFlorian Fainelli void (*get_ethtool_phy_stats)(struct dsa_switch *ds, 470cf963573SFlorian Fainelli int port, uint64_t *data); 47124462549SFlorian Fainelli 47224462549SFlorian Fainelli /* 47319e57c4eSFlorian Fainelli * ethtool Wake-on-LAN 47419e57c4eSFlorian Fainelli */ 47519e57c4eSFlorian Fainelli void (*get_wol)(struct dsa_switch *ds, int port, 47619e57c4eSFlorian Fainelli struct ethtool_wolinfo *w); 47719e57c4eSFlorian Fainelli int (*set_wol)(struct dsa_switch *ds, int port, 47819e57c4eSFlorian Fainelli struct ethtool_wolinfo *w); 47919e57c4eSFlorian Fainelli 48019e57c4eSFlorian Fainelli /* 4810336369dSBrandon Streiff * ethtool timestamp info 4820336369dSBrandon Streiff */ 4830336369dSBrandon Streiff int (*get_ts_info)(struct dsa_switch *ds, int port, 4840336369dSBrandon Streiff struct ethtool_ts_info *ts); 4850336369dSBrandon Streiff 4860336369dSBrandon Streiff /* 48724462549SFlorian Fainelli * Suspend and resume 48824462549SFlorian Fainelli */ 48924462549SFlorian Fainelli int (*suspend)(struct dsa_switch *ds); 49024462549SFlorian Fainelli int (*resume)(struct dsa_switch *ds); 491b2f2af21SFlorian Fainelli 492b2f2af21SFlorian Fainelli /* 493b2f2af21SFlorian Fainelli * Port enable/disable 494b2f2af21SFlorian Fainelli */ 495b2f2af21SFlorian Fainelli int (*port_enable)(struct dsa_switch *ds, int port, 496b2f2af21SFlorian Fainelli struct phy_device *phy); 49775104db0SAndrew Lunn void (*port_disable)(struct dsa_switch *ds, int port); 4987905288fSFlorian Fainelli 4997905288fSFlorian Fainelli /* 50008f50061SVivien Didelot * Port's MAC EEE settings 5017905288fSFlorian Fainelli */ 50208f50061SVivien Didelot int (*set_mac_eee)(struct dsa_switch *ds, int port, 5037905288fSFlorian Fainelli struct ethtool_eee *e); 50408f50061SVivien Didelot int (*get_mac_eee)(struct dsa_switch *ds, int port, 5057905288fSFlorian Fainelli struct ethtool_eee *e); 50651579c3fSGuenter Roeck 5076793abb4SGuenter Roeck /* EEPROM access */ 5086793abb4SGuenter Roeck int (*get_eeprom_len)(struct dsa_switch *ds); 5096793abb4SGuenter Roeck int (*get_eeprom)(struct dsa_switch *ds, 5106793abb4SGuenter Roeck struct ethtool_eeprom *eeprom, u8 *data); 5116793abb4SGuenter Roeck int (*set_eeprom)(struct dsa_switch *ds, 5126793abb4SGuenter Roeck struct ethtool_eeprom *eeprom, u8 *data); 5133d762a0fSGuenter Roeck 5143d762a0fSGuenter Roeck /* 5153d762a0fSGuenter Roeck * Register access. 5163d762a0fSGuenter Roeck */ 5173d762a0fSGuenter Roeck int (*get_regs_len)(struct dsa_switch *ds, int port); 5183d762a0fSGuenter Roeck void (*get_regs)(struct dsa_switch *ds, int port, 5193d762a0fSGuenter Roeck struct ethtool_regs *regs, void *p); 520b73adef6SFlorian Fainelli 521b73adef6SFlorian Fainelli /* 522b73adef6SFlorian Fainelli * Bridge integration 523b73adef6SFlorian Fainelli */ 52434a79f63SVivien Didelot int (*set_ageing_time)(struct dsa_switch *ds, unsigned int msecs); 52571327a4eSVivien Didelot int (*port_bridge_join)(struct dsa_switch *ds, int port, 526a6692754SVivien Didelot struct net_device *bridge); 527f123f2fbSVivien Didelot void (*port_bridge_leave)(struct dsa_switch *ds, int port, 528f123f2fbSVivien Didelot struct net_device *bridge); 52943c44a9fSVivien Didelot void (*port_stp_state_set)(struct dsa_switch *ds, int port, 530b73adef6SFlorian Fainelli u8 state); 531732f794cSVivien Didelot void (*port_fast_age)(struct dsa_switch *ds, int port); 53257652796SRussell King int (*port_egress_floods)(struct dsa_switch *ds, int port, 53357652796SRussell King bool unicast, bool multicast); 5342a778e1bSVivien Didelot 5352a778e1bSVivien Didelot /* 53611149536SVivien Didelot * VLAN support 53711149536SVivien Didelot */ 538fb2dabadSVivien Didelot int (*port_vlan_filtering)(struct dsa_switch *ds, int port, 539fb2dabadSVivien Didelot bool vlan_filtering); 54076e398a6SVivien Didelot int (*port_vlan_prepare)(struct dsa_switch *ds, int port, 54180e02360SVivien Didelot const struct switchdev_obj_port_vlan *vlan); 5424d5770b3SVivien Didelot void (*port_vlan_add)(struct dsa_switch *ds, int port, 54380e02360SVivien Didelot const struct switchdev_obj_port_vlan *vlan); 54476e398a6SVivien Didelot int (*port_vlan_del)(struct dsa_switch *ds, int port, 54576e398a6SVivien Didelot const struct switchdev_obj_port_vlan *vlan); 54611149536SVivien Didelot /* 5472a778e1bSVivien Didelot * Forwarding database 5482a778e1bSVivien Didelot */ 5491b6dd556SArkadi Sharshevsky int (*port_fdb_add)(struct dsa_switch *ds, int port, 5506c2c1dcbSArkadi Sharshevsky const unsigned char *addr, u16 vid); 5512a778e1bSVivien Didelot int (*port_fdb_del)(struct dsa_switch *ds, int port, 5526c2c1dcbSArkadi Sharshevsky const unsigned char *addr, u16 vid); 553ea70ba98SVivien Didelot int (*port_fdb_dump)(struct dsa_switch *ds, int port, 5542bedde1aSArkadi Sharshevsky dsa_fdb_dump_cb_t *cb, void *data); 5558df30255SVivien Didelot 5568df30255SVivien Didelot /* 5578df30255SVivien Didelot * Multicast database 5588df30255SVivien Didelot */ 5598df30255SVivien Didelot int (*port_mdb_prepare)(struct dsa_switch *ds, int port, 5603709aadcSVivien Didelot const struct switchdev_obj_port_mdb *mdb); 5618df30255SVivien Didelot void (*port_mdb_add)(struct dsa_switch *ds, int port, 5623709aadcSVivien Didelot const struct switchdev_obj_port_mdb *mdb); 5638df30255SVivien Didelot int (*port_mdb_del)(struct dsa_switch *ds, int port, 5648df30255SVivien Didelot const struct switchdev_obj_port_mdb *mdb); 565bf9f2648SFlorian Fainelli /* 566bf9f2648SFlorian Fainelli * RXNFC 567bf9f2648SFlorian Fainelli */ 568bf9f2648SFlorian Fainelli int (*get_rxnfc)(struct dsa_switch *ds, int port, 569bf9f2648SFlorian Fainelli struct ethtool_rxnfc *nfc, u32 *rule_locs); 570bf9f2648SFlorian Fainelli int (*set_rxnfc)(struct dsa_switch *ds, int port, 571bf9f2648SFlorian Fainelli struct ethtool_rxnfc *nfc); 572f50f2127SFlorian Fainelli 573f50f2127SFlorian Fainelli /* 574f50f2127SFlorian Fainelli * TC integration 575f50f2127SFlorian Fainelli */ 576ed11bb1fSVladimir Oltean int (*cls_flower_add)(struct dsa_switch *ds, int port, 577ed11bb1fSVladimir Oltean struct flow_cls_offload *cls, bool ingress); 578ed11bb1fSVladimir Oltean int (*cls_flower_del)(struct dsa_switch *ds, int port, 579ed11bb1fSVladimir Oltean struct flow_cls_offload *cls, bool ingress); 580ed11bb1fSVladimir Oltean int (*cls_flower_stats)(struct dsa_switch *ds, int port, 581ed11bb1fSVladimir Oltean struct flow_cls_offload *cls, bool ingress); 582f50f2127SFlorian Fainelli int (*port_mirror_add)(struct dsa_switch *ds, int port, 583f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry *mirror, 584f50f2127SFlorian Fainelli bool ingress); 585f50f2127SFlorian Fainelli void (*port_mirror_del)(struct dsa_switch *ds, int port, 586f50f2127SFlorian Fainelli struct dsa_mall_mirror_tc_entry *mirror); 58734297176SVladimir Oltean int (*port_policer_add)(struct dsa_switch *ds, int port, 58834297176SVladimir Oltean struct dsa_mall_policer_tc_entry *policer); 58934297176SVladimir Oltean void (*port_policer_del)(struct dsa_switch *ds, int port); 59047d23af2SVladimir Oltean int (*port_setup_tc)(struct dsa_switch *ds, int port, 59147d23af2SVladimir Oltean enum tc_setup_type type, void *type_data); 59240ef2c93SVivien Didelot 59340ef2c93SVivien Didelot /* 59440ef2c93SVivien Didelot * Cross-chip operations 59540ef2c93SVivien Didelot */ 596f66a6a69SVladimir Oltean int (*crosschip_bridge_join)(struct dsa_switch *ds, int tree_index, 597f66a6a69SVladimir Oltean int sw_index, int port, 598f66a6a69SVladimir Oltean struct net_device *br); 599f66a6a69SVladimir Oltean void (*crosschip_bridge_leave)(struct dsa_switch *ds, int tree_index, 600f66a6a69SVladimir Oltean int sw_index, int port, 601f66a6a69SVladimir Oltean struct net_device *br); 6020336369dSBrandon Streiff 6030336369dSBrandon Streiff /* 6040336369dSBrandon Streiff * PTP functionality 6050336369dSBrandon Streiff */ 6060336369dSBrandon Streiff int (*port_hwtstamp_get)(struct dsa_switch *ds, int port, 6070336369dSBrandon Streiff struct ifreq *ifr); 6080336369dSBrandon Streiff int (*port_hwtstamp_set)(struct dsa_switch *ds, int port, 6090336369dSBrandon Streiff struct ifreq *ifr); 61090af1059SBrandon Streiff bool (*port_txtstamp)(struct dsa_switch *ds, int port, 61190af1059SBrandon Streiff struct sk_buff *clone, unsigned int type); 61290af1059SBrandon Streiff bool (*port_rxtstamp)(struct dsa_switch *ds, int port, 61390af1059SBrandon Streiff struct sk_buff *skb, unsigned int type); 61497a69a0dSVladimir Oltean 6156b297524SAndrew Lunn /* Devlink parameters */ 6166b297524SAndrew Lunn int (*devlink_param_get)(struct dsa_switch *ds, u32 id, 6176b297524SAndrew Lunn struct devlink_param_gset_ctx *ctx); 6186b297524SAndrew Lunn int (*devlink_param_set)(struct dsa_switch *ds, u32 id, 6196b297524SAndrew Lunn struct devlink_param_gset_ctx *ctx); 620bfcb8132SVladimir Oltean 621bfcb8132SVladimir Oltean /* 622bfcb8132SVladimir Oltean * MTU change functionality. Switches can also adjust their MRU through 623bfcb8132SVladimir Oltean * this method. By MTU, one understands the SDU (L2 payload) length. 624bfcb8132SVladimir Oltean * If the switch needs to account for the DSA tag on the CPU port, this 625ab88d64aSRandy Dunlap * method needs to do so privately. 626bfcb8132SVladimir Oltean */ 627bfcb8132SVladimir Oltean int (*port_change_mtu)(struct dsa_switch *ds, int port, 628bfcb8132SVladimir Oltean int new_mtu); 629bfcb8132SVladimir Oltean int (*port_max_mtu)(struct dsa_switch *ds, int port); 6306b297524SAndrew Lunn }; 6316b297524SAndrew Lunn 6326b297524SAndrew Lunn #define DSA_DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes) \ 6336b297524SAndrew Lunn DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, \ 6346b297524SAndrew Lunn dsa_devlink_param_get, dsa_devlink_param_set, NULL) 6356b297524SAndrew Lunn 6366b297524SAndrew Lunn int dsa_devlink_param_get(struct devlink *dl, u32 id, 6376b297524SAndrew Lunn struct devlink_param_gset_ctx *ctx); 6386b297524SAndrew Lunn int dsa_devlink_param_set(struct devlink *dl, u32 id, 6396b297524SAndrew Lunn struct devlink_param_gset_ctx *ctx); 6406b297524SAndrew Lunn int dsa_devlink_params_register(struct dsa_switch *ds, 6416b297524SAndrew Lunn const struct devlink_param *params, 6426b297524SAndrew Lunn size_t params_count); 6436b297524SAndrew Lunn void dsa_devlink_params_unregister(struct dsa_switch *ds, 6446b297524SAndrew Lunn const struct devlink_param *params, 6456b297524SAndrew Lunn size_t params_count); 6465cd73fbdSAndrew Lunn int dsa_devlink_resource_register(struct dsa_switch *ds, 6475cd73fbdSAndrew Lunn const char *resource_name, 6485cd73fbdSAndrew Lunn u64 resource_size, 6495cd73fbdSAndrew Lunn u64 resource_id, 6505cd73fbdSAndrew Lunn u64 parent_resource_id, 6515cd73fbdSAndrew Lunn const struct devlink_resource_size_params *size_params); 6525cd73fbdSAndrew Lunn 6535cd73fbdSAndrew Lunn void dsa_devlink_resources_unregister(struct dsa_switch *ds); 6545cd73fbdSAndrew Lunn 6555cd73fbdSAndrew Lunn void dsa_devlink_resource_occ_get_register(struct dsa_switch *ds, 6565cd73fbdSAndrew Lunn u64 resource_id, 6575cd73fbdSAndrew Lunn devlink_resource_occ_get_t *occ_get, 6585cd73fbdSAndrew Lunn void *occ_get_priv); 6595cd73fbdSAndrew Lunn void dsa_devlink_resource_occ_get_unregister(struct dsa_switch *ds, 6605cd73fbdSAndrew Lunn u64 resource_id); 66197c82c23SAndrew Lunn struct devlink_region * 66297c82c23SAndrew Lunn dsa_devlink_region_create(struct dsa_switch *ds, 66397c82c23SAndrew Lunn const struct devlink_region_ops *ops, 66497c82c23SAndrew Lunn u32 region_max_snapshots, u64 region_size); 66597c82c23SAndrew Lunn void dsa_devlink_region_destroy(struct devlink_region *region); 66697c82c23SAndrew Lunn 667e1eea811SVladimir Oltean struct dsa_port *dsa_port_from_netdev(struct net_device *netdev); 6685cd73fbdSAndrew Lunn 6696b297524SAndrew Lunn struct dsa_devlink_priv { 6706b297524SAndrew Lunn struct dsa_switch *ds; 671c8f0b869SBen Hutchings }; 672c8f0b869SBen Hutchings 673ccc3e6b0SAndrew Lunn static inline struct dsa_switch *dsa_devlink_to_ds(struct devlink *dl) 674ccc3e6b0SAndrew Lunn { 675ccc3e6b0SAndrew Lunn struct dsa_devlink_priv *dl_priv = devlink_priv(dl); 676ccc3e6b0SAndrew Lunn 677ccc3e6b0SAndrew Lunn return dl_priv->ds; 678ccc3e6b0SAndrew Lunn } 679ccc3e6b0SAndrew Lunn 680ab3d408dSFlorian Fainelli struct dsa_switch_driver { 681ab3d408dSFlorian Fainelli struct list_head list; 682a82f67afSFlorian Fainelli const struct dsa_switch_ops *ops; 683ab3d408dSFlorian Fainelli }; 684ab3d408dSFlorian Fainelli 68514b89f36SFlorian Fainelli struct net_device *dsa_dev_to_net_device(struct device *dev); 686c8f0b869SBen Hutchings 68773a7ece8SVivien Didelot /* Keep inline for faster access in hot path */ 6889eb8eff0SVladimir Oltean static inline bool netdev_uses_dsa(const struct net_device *dev) 689c6e970a0SAndrew Lunn { 690c6e970a0SAndrew Lunn #if IS_ENABLED(CONFIG_NET_DSA) 691717ffbfbSVivien Didelot return dev->dsa_ptr && dev->dsa_ptr->rcv; 692c6e970a0SAndrew Lunn #endif 693c6e970a0SAndrew Lunn return false; 694c6e970a0SAndrew Lunn } 695c6e970a0SAndrew Lunn 696cc1939e4SVladimir Oltean static inline bool dsa_can_decode(const struct sk_buff *skb, 697cc1939e4SVladimir Oltean struct net_device *dev) 698cc1939e4SVladimir Oltean { 699cc1939e4SVladimir Oltean #if IS_ENABLED(CONFIG_NET_DSA) 700cc1939e4SVladimir Oltean return !dev->dsa_ptr->filter || dev->dsa_ptr->filter(skb, dev); 701cc1939e4SVladimir Oltean #endif 702cc1939e4SVladimir Oltean return false; 703cc1939e4SVladimir Oltean } 704cc1939e4SVladimir Oltean 7054cfab356SFlorian Fainelli #if IS_ENABLED(CONFIG_NET_DSA) 7064cfab356SFlorian Fainelli static inline int __dsa_netdevice_ops_check(struct net_device *dev) 7074cfab356SFlorian Fainelli { 7084cfab356SFlorian Fainelli int err = -EOPNOTSUPP; 7094cfab356SFlorian Fainelli 7104cfab356SFlorian Fainelli if (!dev->dsa_ptr) 7114cfab356SFlorian Fainelli return err; 7124cfab356SFlorian Fainelli 7134cfab356SFlorian Fainelli if (!dev->dsa_ptr->netdev_ops) 7144cfab356SFlorian Fainelli return err; 7154cfab356SFlorian Fainelli 7164cfab356SFlorian Fainelli return 0; 7174cfab356SFlorian Fainelli } 7184cfab356SFlorian Fainelli 7194cfab356SFlorian Fainelli static inline int dsa_ndo_do_ioctl(struct net_device *dev, struct ifreq *ifr, 7204cfab356SFlorian Fainelli int cmd) 7214cfab356SFlorian Fainelli { 7224cfab356SFlorian Fainelli const struct dsa_netdevice_ops *ops; 7234cfab356SFlorian Fainelli int err; 7244cfab356SFlorian Fainelli 7254cfab356SFlorian Fainelli err = __dsa_netdevice_ops_check(dev); 7264cfab356SFlorian Fainelli if (err) 7274cfab356SFlorian Fainelli return err; 7284cfab356SFlorian Fainelli 7294cfab356SFlorian Fainelli ops = dev->dsa_ptr->netdev_ops; 7304cfab356SFlorian Fainelli 7314cfab356SFlorian Fainelli return ops->ndo_do_ioctl(dev, ifr, cmd); 7324cfab356SFlorian Fainelli } 7334cfab356SFlorian Fainelli #else 7344cfab356SFlorian Fainelli static inline int dsa_ndo_do_ioctl(struct net_device *dev, struct ifreq *ifr, 7354cfab356SFlorian Fainelli int cmd) 7364cfab356SFlorian Fainelli { 7374cfab356SFlorian Fainelli return -EOPNOTSUPP; 7384cfab356SFlorian Fainelli } 7394cfab356SFlorian Fainelli #endif 7404cfab356SFlorian Fainelli 74183c0afaeSAndrew Lunn void dsa_unregister_switch(struct dsa_switch *ds); 74223c9ee49SVivien Didelot int dsa_register_switch(struct dsa_switch *ds); 7433b7bc1f0SVladimir Oltean struct dsa_switch *dsa_switch_find(int tree_index, int sw_index); 744ea825e70SFlorian Fainelli #ifdef CONFIG_PM_SLEEP 745ea825e70SFlorian Fainelli int dsa_switch_suspend(struct dsa_switch *ds); 746ea825e70SFlorian Fainelli int dsa_switch_resume(struct dsa_switch *ds); 747ea825e70SFlorian Fainelli #else 748ea825e70SFlorian Fainelli static inline int dsa_switch_suspend(struct dsa_switch *ds) 749ea825e70SFlorian Fainelli { 750ea825e70SFlorian Fainelli return 0; 751ea825e70SFlorian Fainelli } 752ea825e70SFlorian Fainelli static inline int dsa_switch_resume(struct dsa_switch *ds) 753ea825e70SFlorian Fainelli { 754ea825e70SFlorian Fainelli return 0; 755ea825e70SFlorian Fainelli } 756ea825e70SFlorian Fainelli #endif /* CONFIG_PM_SLEEP */ 757ea825e70SFlorian Fainelli 75860724d4bSFlorian Fainelli enum dsa_notifier_type { 75960724d4bSFlorian Fainelli DSA_PORT_REGISTER, 76060724d4bSFlorian Fainelli DSA_PORT_UNREGISTER, 76160724d4bSFlorian Fainelli }; 76260724d4bSFlorian Fainelli 76360724d4bSFlorian Fainelli struct dsa_notifier_info { 76460724d4bSFlorian Fainelli struct net_device *dev; 76560724d4bSFlorian Fainelli }; 76660724d4bSFlorian Fainelli 76760724d4bSFlorian Fainelli struct dsa_notifier_register_info { 76860724d4bSFlorian Fainelli struct dsa_notifier_info info; /* must be first */ 76960724d4bSFlorian Fainelli struct net_device *master; 77060724d4bSFlorian Fainelli unsigned int port_number; 77160724d4bSFlorian Fainelli unsigned int switch_number; 77260724d4bSFlorian Fainelli }; 77360724d4bSFlorian Fainelli 77460724d4bSFlorian Fainelli static inline struct net_device * 77560724d4bSFlorian Fainelli dsa_notifier_info_to_dev(const struct dsa_notifier_info *info) 77660724d4bSFlorian Fainelli { 77760724d4bSFlorian Fainelli return info->dev; 77860724d4bSFlorian Fainelli } 77960724d4bSFlorian Fainelli 78060724d4bSFlorian Fainelli #if IS_ENABLED(CONFIG_NET_DSA) 78160724d4bSFlorian Fainelli int register_dsa_notifier(struct notifier_block *nb); 78260724d4bSFlorian Fainelli int unregister_dsa_notifier(struct notifier_block *nb); 78360724d4bSFlorian Fainelli int call_dsa_notifiers(unsigned long val, struct net_device *dev, 78460724d4bSFlorian Fainelli struct dsa_notifier_info *info); 78560724d4bSFlorian Fainelli #else 78660724d4bSFlorian Fainelli static inline int register_dsa_notifier(struct notifier_block *nb) 78760724d4bSFlorian Fainelli { 78860724d4bSFlorian Fainelli return 0; 78960724d4bSFlorian Fainelli } 79060724d4bSFlorian Fainelli 79160724d4bSFlorian Fainelli static inline int unregister_dsa_notifier(struct notifier_block *nb) 79260724d4bSFlorian Fainelli { 79360724d4bSFlorian Fainelli return 0; 79460724d4bSFlorian Fainelli } 79560724d4bSFlorian Fainelli 79660724d4bSFlorian Fainelli static inline int call_dsa_notifiers(unsigned long val, struct net_device *dev, 79760724d4bSFlorian Fainelli struct dsa_notifier_info *info) 79860724d4bSFlorian Fainelli { 79960724d4bSFlorian Fainelli return NOTIFY_DONE; 80060724d4bSFlorian Fainelli } 80160724d4bSFlorian Fainelli #endif 80260724d4bSFlorian Fainelli 8030a5f14ceSFlorian Fainelli /* Broadcom tag specific helpers to insert and extract queue/port number */ 8040a5f14ceSFlorian Fainelli #define BRCM_TAG_SET_PORT_QUEUE(p, q) ((p) << 8 | q) 8050a5f14ceSFlorian Fainelli #define BRCM_TAG_GET_PORT(v) ((v) >> 8) 8060a5f14ceSFlorian Fainelli #define BRCM_TAG_GET_QUEUE(v) ((v) & 0xff) 8070a5f14ceSFlorian Fainelli 808cf963573SFlorian Fainelli 80997a69a0dSVladimir Oltean netdev_tx_t dsa_enqueue_skb(struct sk_buff *skb, struct net_device *dev); 810cf963573SFlorian Fainelli int dsa_port_get_phy_strings(struct dsa_port *dp, uint8_t *data); 811cf963573SFlorian Fainelli int dsa_port_get_ethtool_phy_stats(struct dsa_port *dp, uint64_t *data); 812cf963573SFlorian Fainelli int dsa_port_get_phy_sset_count(struct dsa_port *dp); 81311d8f3ddSFlorian Fainelli void dsa_port_phylink_mac_change(struct dsa_switch *ds, int port, bool up); 814cf963573SFlorian Fainelli 815d3b8c049SAndrew Lunn struct dsa_tag_driver { 816d3b8c049SAndrew Lunn const struct dsa_device_ops *ops; 817d3b8c049SAndrew Lunn struct list_head list; 818d3b8c049SAndrew Lunn struct module *owner; 819d3b8c049SAndrew Lunn }; 820d3b8c049SAndrew Lunn 821d3b8c049SAndrew Lunn void dsa_tag_drivers_register(struct dsa_tag_driver *dsa_tag_driver_array[], 822d3b8c049SAndrew Lunn unsigned int count, 823d3b8c049SAndrew Lunn struct module *owner); 824d3b8c049SAndrew Lunn void dsa_tag_drivers_unregister(struct dsa_tag_driver *dsa_tag_driver_array[], 825d3b8c049SAndrew Lunn unsigned int count); 826d3b8c049SAndrew Lunn 827d3b8c049SAndrew Lunn #define dsa_tag_driver_module_drivers(__dsa_tag_drivers_array, __count) \ 828d3b8c049SAndrew Lunn static int __init dsa_tag_driver_module_init(void) \ 829d3b8c049SAndrew Lunn { \ 830d3b8c049SAndrew Lunn dsa_tag_drivers_register(__dsa_tag_drivers_array, __count, \ 831d3b8c049SAndrew Lunn THIS_MODULE); \ 832d3b8c049SAndrew Lunn return 0; \ 833d3b8c049SAndrew Lunn } \ 834d3b8c049SAndrew Lunn module_init(dsa_tag_driver_module_init); \ 835d3b8c049SAndrew Lunn \ 836d3b8c049SAndrew Lunn static void __exit dsa_tag_driver_module_exit(void) \ 837d3b8c049SAndrew Lunn { \ 838d3b8c049SAndrew Lunn dsa_tag_drivers_unregister(__dsa_tag_drivers_array, __count); \ 839d3b8c049SAndrew Lunn } \ 840d3b8c049SAndrew Lunn module_exit(dsa_tag_driver_module_exit) 841d3b8c049SAndrew Lunn 842d3b8c049SAndrew Lunn /** 843d3b8c049SAndrew Lunn * module_dsa_tag_drivers() - Helper macro for registering DSA tag 844d3b8c049SAndrew Lunn * drivers 845d3b8c049SAndrew Lunn * @__ops_array: Array of tag driver strucutres 846d3b8c049SAndrew Lunn * 847d3b8c049SAndrew Lunn * Helper macro for DSA tag drivers which do not do anything special 848d3b8c049SAndrew Lunn * in module init/exit. Each module may only use this macro once, and 849d3b8c049SAndrew Lunn * calling it replaces module_init() and module_exit(). 850d3b8c049SAndrew Lunn */ 851d3b8c049SAndrew Lunn #define module_dsa_tag_drivers(__ops_array) \ 852d3b8c049SAndrew Lunn dsa_tag_driver_module_drivers(__ops_array, ARRAY_SIZE(__ops_array)) 853d3b8c049SAndrew Lunn 854d3b8c049SAndrew Lunn #define DSA_TAG_DRIVER_NAME(__ops) dsa_tag_driver ## _ ## __ops 855d3b8c049SAndrew Lunn 856d3b8c049SAndrew Lunn /* Create a static structure we can build a linked list of dsa_tag 857d3b8c049SAndrew Lunn * drivers 858d3b8c049SAndrew Lunn */ 859d3b8c049SAndrew Lunn #define DSA_TAG_DRIVER(__ops) \ 860d3b8c049SAndrew Lunn static struct dsa_tag_driver DSA_TAG_DRIVER_NAME(__ops) = { \ 861d3b8c049SAndrew Lunn .ops = &__ops, \ 862d3b8c049SAndrew Lunn } 863d3b8c049SAndrew Lunn 864d3b8c049SAndrew Lunn /** 865d3b8c049SAndrew Lunn * module_dsa_tag_driver() - Helper macro for registering a single DSA tag 866d3b8c049SAndrew Lunn * driver 867d3b8c049SAndrew Lunn * @__ops: Single tag driver structures 868d3b8c049SAndrew Lunn * 869d3b8c049SAndrew Lunn * Helper macro for DSA tag drivers which do not do anything special 870d3b8c049SAndrew Lunn * in module init/exit. Each module may only use this macro once, and 871d3b8c049SAndrew Lunn * calling it replaces module_init() and module_exit(). 872d3b8c049SAndrew Lunn */ 873d3b8c049SAndrew Lunn #define module_dsa_tag_driver(__ops) \ 874d3b8c049SAndrew Lunn DSA_TAG_DRIVER(__ops); \ 875d3b8c049SAndrew Lunn \ 876d3b8c049SAndrew Lunn static struct dsa_tag_driver *dsa_tag_driver_array[] = { \ 877d3b8c049SAndrew Lunn &DSA_TAG_DRIVER_NAME(__ops) \ 878d3b8c049SAndrew Lunn }; \ 879d3b8c049SAndrew Lunn module_dsa_tag_drivers(dsa_tag_driver_array) 88091da11f8SLennert Buytenhek #endif 881d3b8c049SAndrew Lunn 882