// SPDX-License-Identifier: GPL-2.0 /* Copyright 2019-2021 NXP * * This is an umbrella module for all network switches that are * register-compatible with Ocelot and that perform I/O to their host CPU * through an NPI (Node Processor Interface) Ethernet port. */ #include <uapi/linux/if_bridge.h> #include <soc/mscc/ocelot_vcap.h> #include <soc/mscc/ocelot_qsys.h> #include <soc/mscc/ocelot_sys.h> #include <soc/mscc/ocelot_dev.h> #include <soc/mscc/ocelot_ana.h> #include <soc/mscc/ocelot_ptp.h> #include <soc/mscc/ocelot.h> #include <linux/dsa/8021q.h> #include <linux/dsa/ocelot.h> #include <linux/platform_device.h> #include <linux/ptp_classify.h> #include <linux/module.h> #include <linux/of_net.h> #include <linux/pci.h> #include <linux/of.h> #include <net/pkt_sched.h> #include <net/dsa.h> #include "felix.h" /* Translate the DSA database API into the ocelot switch library API, * which uses VID 0 for all ports that aren't part of a bridge, * and expects the bridge_dev to be NULL in that case. */ static struct net_device *felix_classify_db(struct dsa_db db) { … } static int felix_cpu_port_for_conduit(struct dsa_switch *ds, struct net_device *conduit) { … } /* Set up VCAP ES0 rules for pushing a tag_8021q VLAN towards the CPU such that * the tagger can perform RX source port identification. */ static int felix_tag_8021q_vlan_add_rx(struct dsa_switch *ds, int port, int upstream, u16 vid) { … } static int felix_tag_8021q_vlan_del_rx(struct dsa_switch *ds, int port, int upstream, u16 vid) { … } /* Set up VCAP IS1 rules for stripping the tag_8021q VLAN on TX and VCAP IS2 * rules for steering those tagged packets towards the correct destination port */ static int felix_tag_8021q_vlan_add_tx(struct dsa_switch *ds, int port, u16 vid) { … } static int felix_tag_8021q_vlan_del_tx(struct dsa_switch *ds, int port, u16 vid) { … } static int felix_tag_8021q_vlan_add(struct dsa_switch *ds, int port, u16 vid, u16 flags) { … } static int felix_tag_8021q_vlan_del(struct dsa_switch *ds, int port, u16 vid) { … } static int felix_trap_get_cpu_port(struct dsa_switch *ds, const struct ocelot_vcap_filter *trap) { … } /* On switches with no extraction IRQ wired, trapped packets need to be * replicated over Ethernet as well, otherwise we'd get no notification of * their arrival when using the ocelot-8021q tagging protocol. */ static int felix_update_trapping_destinations(struct dsa_switch *ds, bool using_tag_8021q) { … } /* The CPU port module is connected to the Node Processor Interface (NPI). This * is the mode through which frames can be injected from and extracted to an * external CPU, over Ethernet. In NXP SoCs, the "external CPU" is the ARM CPU * running Linux, and this forms a DSA setup together with the enetc or fman * DSA conduit. */ static void felix_npi_port_init(struct ocelot *ocelot, int port) { … } static void felix_npi_port_deinit(struct ocelot *ocelot, int port) { … } static int felix_tag_npi_setup(struct dsa_switch *ds) { … } static void felix_tag_npi_teardown(struct dsa_switch *ds) { … } static unsigned long felix_tag_npi_get_host_fwd_mask(struct dsa_switch *ds) { … } static int felix_tag_npi_change_conduit(struct dsa_switch *ds, int port, struct net_device *conduit, struct netlink_ext_ack *extack) { … } /* Alternatively to using the NPI functionality, that same hardware MAC * connected internally to the enetc or fman DSA conduit can be configured to * use the software-defined tag_8021q frame format. As far as the hardware is * concerned, it thinks it is a "dumb switch" - the queues of the CPU port * module are now disconnected from it, but can still be accessed through * register-based MMIO. */ static const struct felix_tag_proto_ops felix_tag_npi_proto_ops = …; static int felix_tag_8021q_setup(struct dsa_switch *ds) { … } static void felix_tag_8021q_teardown(struct dsa_switch *ds) { … } static unsigned long felix_tag_8021q_get_host_fwd_mask(struct dsa_switch *ds) { … } static int felix_tag_8021q_change_conduit(struct dsa_switch *ds, int port, struct net_device *conduit, struct netlink_ext_ack *extack) { … } static const struct felix_tag_proto_ops felix_tag_8021q_proto_ops = …; static void felix_set_host_flood(struct dsa_switch *ds, unsigned long mask, bool uc, bool mc, bool bc) { … } static void felix_migrate_host_flood(struct dsa_switch *ds, const struct felix_tag_proto_ops *proto_ops, const struct felix_tag_proto_ops *old_proto_ops) { … } static int felix_migrate_mdbs(struct dsa_switch *ds, const struct felix_tag_proto_ops *proto_ops, const struct felix_tag_proto_ops *old_proto_ops) { … } /* Configure the shared hardware resources for a transition between * @old_proto_ops and @proto_ops. * Manual migration is needed because as far as DSA is concerned, no change of * the CPU port is taking place here, just of the tagging protocol. */ static int felix_tag_proto_setup_shared(struct dsa_switch *ds, const struct felix_tag_proto_ops *proto_ops, const struct felix_tag_proto_ops *old_proto_ops) { … } /* This always leaves the switch in a consistent state, because although the * tag_8021q setup can fail, the NPI setup can't. So either the change is made, * or the restoration is guaranteed to work. */ static int felix_change_tag_protocol(struct dsa_switch *ds, enum dsa_tag_protocol proto) { … } static enum dsa_tag_protocol felix_get_tag_protocol(struct dsa_switch *ds, int port, enum dsa_tag_protocol mp) { … } static void felix_port_set_host_flood(struct dsa_switch *ds, int port, bool uc, bool mc) { … } static int felix_port_change_conduit(struct dsa_switch *ds, int port, struct net_device *conduit, struct netlink_ext_ack *extack) { … } static int felix_set_ageing_time(struct dsa_switch *ds, unsigned int ageing_time) { … } static void felix_port_fast_age(struct dsa_switch *ds, int port) { … } static int felix_fdb_dump(struct dsa_switch *ds, int port, dsa_fdb_dump_cb_t *cb, void *data) { … } static int felix_fdb_add(struct dsa_switch *ds, int port, const unsigned char *addr, u16 vid, struct dsa_db db) { … } static int felix_fdb_del(struct dsa_switch *ds, int port, const unsigned char *addr, u16 vid, struct dsa_db db) { … } static int felix_lag_fdb_add(struct dsa_switch *ds, struct dsa_lag lag, const unsigned char *addr, u16 vid, struct dsa_db db) { … } static int felix_lag_fdb_del(struct dsa_switch *ds, struct dsa_lag lag, const unsigned char *addr, u16 vid, struct dsa_db db) { … } static int felix_mdb_add(struct dsa_switch *ds, int port, const struct switchdev_obj_port_mdb *mdb, struct dsa_db db) { … } static int felix_mdb_del(struct dsa_switch *ds, int port, const struct switchdev_obj_port_mdb *mdb, struct dsa_db db) { … } static void felix_bridge_stp_state_set(struct dsa_switch *ds, int port, u8 state) { … } static int felix_pre_bridge_flags(struct dsa_switch *ds, int port, struct switchdev_brport_flags val, struct netlink_ext_ack *extack) { … } static int felix_bridge_flags(struct dsa_switch *ds, int port, struct switchdev_brport_flags val, struct netlink_ext_ack *extack) { … } static int felix_bridge_join(struct dsa_switch *ds, int port, struct dsa_bridge bridge, bool *tx_fwd_offload, struct netlink_ext_ack *extack) { … } static void felix_bridge_leave(struct dsa_switch *ds, int port, struct dsa_bridge bridge) { … } static int felix_lag_join(struct dsa_switch *ds, int port, struct dsa_lag lag, struct netdev_lag_upper_info *info, struct netlink_ext_ack *extack) { … } static int felix_lag_leave(struct dsa_switch *ds, int port, struct dsa_lag lag) { … } static int felix_lag_change(struct dsa_switch *ds, int port) { … } static int felix_vlan_prepare(struct dsa_switch *ds, int port, const struct switchdev_obj_port_vlan *vlan, struct netlink_ext_ack *extack) { … } static int felix_vlan_filtering(struct dsa_switch *ds, int port, bool enabled, struct netlink_ext_ack *extack) { … } static int felix_vlan_add(struct dsa_switch *ds, int port, const struct switchdev_obj_port_vlan *vlan, struct netlink_ext_ack *extack) { … } static int felix_vlan_del(struct dsa_switch *ds, int port, const struct switchdev_obj_port_vlan *vlan) { … } static void felix_phylink_get_caps(struct dsa_switch *ds, int port, struct phylink_config *config) { … } static void felix_phylink_mac_config(struct phylink_config *config, unsigned int mode, const struct phylink_link_state *state) { … } static struct phylink_pcs * felix_phylink_mac_select_pcs(struct phylink_config *config, phy_interface_t iface) { … } static void felix_phylink_mac_link_down(struct phylink_config *config, unsigned int link_an_mode, phy_interface_t interface) { … } static void felix_phylink_mac_link_up(struct phylink_config *config, struct phy_device *phydev, unsigned int link_an_mode, phy_interface_t interface, int speed, int duplex, bool tx_pause, bool rx_pause) { … } static int felix_port_enable(struct dsa_switch *ds, int port, struct phy_device *phydev) { … } static void felix_port_qos_map_init(struct ocelot *ocelot, int port) { … } static void felix_get_stats64(struct dsa_switch *ds, int port, struct rtnl_link_stats64 *stats) { … } static void felix_get_pause_stats(struct dsa_switch *ds, int port, struct ethtool_pause_stats *pause_stats) { … } static void felix_get_rmon_stats(struct dsa_switch *ds, int port, struct ethtool_rmon_stats *rmon_stats, const struct ethtool_rmon_hist_range **ranges) { … } static void felix_get_eth_ctrl_stats(struct dsa_switch *ds, int port, struct ethtool_eth_ctrl_stats *ctrl_stats) { … } static void felix_get_eth_mac_stats(struct dsa_switch *ds, int port, struct ethtool_eth_mac_stats *mac_stats) { … } static void felix_get_eth_phy_stats(struct dsa_switch *ds, int port, struct ethtool_eth_phy_stats *phy_stats) { … } static void felix_get_strings(struct dsa_switch *ds, int port, u32 stringset, u8 *data) { … } static void felix_get_ethtool_stats(struct dsa_switch *ds, int port, u64 *data) { … } static int felix_get_sset_count(struct dsa_switch *ds, int port, int sset) { … } static int felix_get_ts_info(struct dsa_switch *ds, int port, struct kernel_ethtool_ts_info *info) { … } static const u32 felix_phy_match_table[PHY_INTERFACE_MODE_MAX] = …; static int felix_validate_phy_mode(struct felix *felix, int port, phy_interface_t phy_mode) { … } static int felix_parse_ports_node(struct felix *felix, struct device_node *ports_node, phy_interface_t *port_phy_modes) { … } static int felix_parse_dt(struct felix *felix, phy_interface_t *port_phy_modes) { … } static struct regmap *felix_request_regmap_by_name(struct felix *felix, const char *resource_name) { … } static struct regmap *felix_request_regmap(struct felix *felix, enum ocelot_target target) { … } static struct regmap *felix_request_port_regmap(struct felix *felix, int port) { … } static int felix_init_structs(struct felix *felix, int num_phys_ports) { … } static void ocelot_port_purge_txtstamp_skb(struct ocelot *ocelot, int port, struct sk_buff *skb) { … } #define work_to_xmit_work(w) … static void felix_port_deferred_xmit(struct kthread_work *work) { … } static int felix_connect_tag_protocol(struct dsa_switch *ds, enum dsa_tag_protocol proto) { … } static int felix_setup(struct dsa_switch *ds) { … } static void felix_teardown(struct dsa_switch *ds) { … } static int felix_hwtstamp_get(struct dsa_switch *ds, int port, struct ifreq *ifr) { … } static int felix_hwtstamp_set(struct dsa_switch *ds, int port, struct ifreq *ifr) { … } static bool felix_check_xtr_pkt(struct ocelot *ocelot) { … } static bool felix_rxtstamp(struct dsa_switch *ds, int port, struct sk_buff *skb, unsigned int type) { … } static void felix_txtstamp(struct dsa_switch *ds, int port, struct sk_buff *skb) { … } static int felix_change_mtu(struct dsa_switch *ds, int port, int new_mtu) { … } static int felix_get_max_mtu(struct dsa_switch *ds, int port) { … } static int felix_cls_flower_add(struct dsa_switch *ds, int port, struct flow_cls_offload *cls, bool ingress) { … } static int felix_cls_flower_del(struct dsa_switch *ds, int port, struct flow_cls_offload *cls, bool ingress) { … } static int felix_cls_flower_stats(struct dsa_switch *ds, int port, struct flow_cls_offload *cls, bool ingress) { … } static int felix_port_policer_add(struct dsa_switch *ds, int port, struct dsa_mall_policer_tc_entry *policer) { … } static void felix_port_policer_del(struct dsa_switch *ds, int port) { … } static int felix_port_mirror_add(struct dsa_switch *ds, int port, struct dsa_mall_mirror_tc_entry *mirror, bool ingress, struct netlink_ext_ack *extack) { … } static void felix_port_mirror_del(struct dsa_switch *ds, int port, struct dsa_mall_mirror_tc_entry *mirror) { … } static int felix_port_setup_tc(struct dsa_switch *ds, int port, enum tc_setup_type type, void *type_data) { … } static int felix_sb_pool_get(struct dsa_switch *ds, unsigned int sb_index, u16 pool_index, struct devlink_sb_pool_info *pool_info) { … } static int felix_sb_pool_set(struct dsa_switch *ds, unsigned int sb_index, u16 pool_index, u32 size, enum devlink_sb_threshold_type threshold_type, struct netlink_ext_ack *extack) { … } static int felix_sb_port_pool_get(struct dsa_switch *ds, int port, unsigned int sb_index, u16 pool_index, u32 *p_threshold) { … } static int felix_sb_port_pool_set(struct dsa_switch *ds, int port, unsigned int sb_index, u16 pool_index, u32 threshold, struct netlink_ext_ack *extack) { … } static int felix_sb_tc_pool_bind_get(struct dsa_switch *ds, int port, unsigned int sb_index, u16 tc_index, enum devlink_sb_pool_type pool_type, u16 *p_pool_index, u32 *p_threshold) { … } static int felix_sb_tc_pool_bind_set(struct dsa_switch *ds, int port, unsigned int sb_index, u16 tc_index, enum devlink_sb_pool_type pool_type, u16 pool_index, u32 threshold, struct netlink_ext_ack *extack) { … } static int felix_sb_occ_snapshot(struct dsa_switch *ds, unsigned int sb_index) { … } static int felix_sb_occ_max_clear(struct dsa_switch *ds, unsigned int sb_index) { … } static int felix_sb_occ_port_pool_get(struct dsa_switch *ds, int port, unsigned int sb_index, u16 pool_index, u32 *p_cur, u32 *p_max) { … } static int felix_sb_occ_tc_port_bind_get(struct dsa_switch *ds, int port, unsigned int sb_index, u16 tc_index, enum devlink_sb_pool_type pool_type, u32 *p_cur, u32 *p_max) { … } static int felix_mrp_add(struct dsa_switch *ds, int port, const struct switchdev_obj_mrp *mrp) { … } static int felix_mrp_del(struct dsa_switch *ds, int port, const struct switchdev_obj_mrp *mrp) { … } static int felix_mrp_add_ring_role(struct dsa_switch *ds, int port, const struct switchdev_obj_ring_role_mrp *mrp) { … } static int felix_mrp_del_ring_role(struct dsa_switch *ds, int port, const struct switchdev_obj_ring_role_mrp *mrp) { … } static int felix_port_get_default_prio(struct dsa_switch *ds, int port) { … } static int felix_port_set_default_prio(struct dsa_switch *ds, int port, u8 prio) { … } static int felix_port_get_dscp_prio(struct dsa_switch *ds, int port, u8 dscp) { … } static int felix_port_add_dscp_prio(struct dsa_switch *ds, int port, u8 dscp, u8 prio) { … } static int felix_port_del_dscp_prio(struct dsa_switch *ds, int port, u8 dscp, u8 prio) { … } static int felix_get_mm(struct dsa_switch *ds, int port, struct ethtool_mm_state *state) { … } static int felix_set_mm(struct dsa_switch *ds, int port, struct ethtool_mm_cfg *cfg, struct netlink_ext_ack *extack) { … } static void felix_get_mm_stats(struct dsa_switch *ds, int port, struct ethtool_mm_stats *stats) { … } static const struct phylink_mac_ops felix_phylink_mac_ops = …; static const struct dsa_switch_ops felix_switch_ops = …; int felix_register_switch(struct device *dev, resource_size_t switch_base, int num_flooding_pgids, bool ptp, bool mm_supported, enum dsa_tag_protocol init_tag_proto, const struct felix_info *info) { … } EXPORT_SYMBOL_GPL(…); struct net_device *felix_port_to_netdev(struct ocelot *ocelot, int port) { … } EXPORT_SYMBOL_GPL(…); int felix_netdev_to_port(struct net_device *dev) { … } EXPORT_SYMBOL_GPL(…); MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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