// SPDX-License-Identifier: GPL-2.0 /* * DPAA2 Ethernet Switch driver * * Copyright 2014-2016 Freescale Semiconductor Inc. * Copyright 2017-2021 NXP * */ #include <linux/module.h> #include <linux/interrupt.h> #include <linux/kthread.h> #include <linux/workqueue.h> #include <linux/iommu.h> #include <net/pkt_cls.h> #include <linux/fsl/mc.h> #include "dpaa2-switch.h" /* Minimal supported DPSW version */ #define DPSW_MIN_VER_MAJOR … #define DPSW_MIN_VER_MINOR … #define DEFAULT_VLAN_ID … static u16 dpaa2_switch_port_get_fdb_id(struct ethsw_port_priv *port_priv) { … } static struct dpaa2_switch_fdb *dpaa2_switch_fdb_get_unused(struct ethsw_core *ethsw) { … } static struct dpaa2_switch_filter_block * dpaa2_switch_filter_block_get_unused(struct ethsw_core *ethsw) { … } static u16 dpaa2_switch_port_set_fdb(struct ethsw_port_priv *port_priv, struct net_device *bridge_dev) { … } static void dpaa2_switch_fdb_get_flood_cfg(struct ethsw_core *ethsw, u16 fdb_id, enum dpsw_flood_type type, struct dpsw_egress_flood_cfg *cfg) { … } static int dpaa2_switch_fdb_set_egress_flood(struct ethsw_core *ethsw, u16 fdb_id) { … } static void *dpaa2_iova_to_virt(struct iommu_domain *domain, dma_addr_t iova_addr) { … } static int dpaa2_switch_add_vlan(struct ethsw_port_priv *port_priv, u16 vid) { … } static bool dpaa2_switch_port_is_up(struct ethsw_port_priv *port_priv) { … } static int dpaa2_switch_port_set_pvid(struct ethsw_port_priv *port_priv, u16 pvid) { … } static int dpaa2_switch_port_add_vlan(struct ethsw_port_priv *port_priv, u16 vid, u16 flags) { … } static enum dpsw_stp_state br_stp_state_to_dpsw(u8 state) { … } static int dpaa2_switch_port_set_stp_state(struct ethsw_port_priv *port_priv, u8 state) { … } static int dpaa2_switch_dellink(struct ethsw_core *ethsw, u16 vid) { … } static int dpaa2_switch_port_fdb_add_uc(struct ethsw_port_priv *port_priv, const unsigned char *addr) { … } static int dpaa2_switch_port_fdb_del_uc(struct ethsw_port_priv *port_priv, const unsigned char *addr) { … } static int dpaa2_switch_port_fdb_add_mc(struct ethsw_port_priv *port_priv, const unsigned char *addr) { … } static int dpaa2_switch_port_fdb_del_mc(struct ethsw_port_priv *port_priv, const unsigned char *addr) { … } static void dpaa2_switch_port_get_stats(struct net_device *netdev, struct rtnl_link_stats64 *stats) { … } static bool dpaa2_switch_port_has_offload_stats(const struct net_device *netdev, int attr_id) { … } static int dpaa2_switch_port_get_offload_stats(int attr_id, const struct net_device *netdev, void *sp) { … } static int dpaa2_switch_port_change_mtu(struct net_device *netdev, int mtu) { … } static int dpaa2_switch_port_link_state_update(struct net_device *netdev) { … } /* Manage all NAPI instances for the control interface. * * We only have one RX queue and one Tx Conf queue for all * switch ports. Therefore, we only need to enable the NAPI instance once, the * first time one of the switch ports runs .dev_open(). */ static void dpaa2_switch_enable_ctrl_if_napi(struct ethsw_core *ethsw) { … } static void dpaa2_switch_disable_ctrl_if_napi(struct ethsw_core *ethsw) { … } static int dpaa2_switch_port_open(struct net_device *netdev) { … } static int dpaa2_switch_port_stop(struct net_device *netdev) { … } static int dpaa2_switch_port_parent_id(struct net_device *dev, struct netdev_phys_item_id *ppid) { … } static int dpaa2_switch_port_get_phys_name(struct net_device *netdev, char *name, size_t len) { … } struct ethsw_dump_ctx { … }; static int dpaa2_switch_fdb_dump_nl(struct fdb_dump_entry *entry, struct ethsw_dump_ctx *dump) { … } static int dpaa2_switch_port_fdb_valid_entry(struct fdb_dump_entry *entry, struct ethsw_port_priv *port_priv) { … } static int dpaa2_switch_fdb_iterate(struct ethsw_port_priv *port_priv, dpaa2_switch_fdb_cb_t cb, void *data) { … } static int dpaa2_switch_fdb_entry_dump(struct ethsw_port_priv *port_priv, struct fdb_dump_entry *fdb_entry, void *data) { … } static int dpaa2_switch_port_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, struct net_device *net_dev, struct net_device *filter_dev, int *idx) { … } static int dpaa2_switch_fdb_entry_fast_age(struct ethsw_port_priv *port_priv, struct fdb_dump_entry *fdb_entry, void *data __always_unused) { … } static void dpaa2_switch_port_fast_age(struct ethsw_port_priv *port_priv) { … } static int dpaa2_switch_port_vlan_add(struct net_device *netdev, __be16 proto, u16 vid) { … } static int dpaa2_switch_port_vlan_kill(struct net_device *netdev, __be16 proto, u16 vid) { … } static int dpaa2_switch_port_set_mac_addr(struct ethsw_port_priv *port_priv) { … } static void dpaa2_switch_free_fd(const struct ethsw_core *ethsw, const struct dpaa2_fd *fd) { … } static int dpaa2_switch_build_single_fd(struct ethsw_core *ethsw, struct sk_buff *skb, struct dpaa2_fd *fd) { … } static netdev_tx_t dpaa2_switch_port_tx(struct sk_buff *skb, struct net_device *net_dev) { … } static int dpaa2_switch_setup_tc_cls_flower(struct dpaa2_switch_filter_block *filter_block, struct flow_cls_offload *f) { … } static int dpaa2_switch_setup_tc_cls_matchall(struct dpaa2_switch_filter_block *block, struct tc_cls_matchall_offload *f) { … } static int dpaa2_switch_port_setup_tc_block_cb_ig(enum tc_setup_type type, void *type_data, void *cb_priv) { … } static LIST_HEAD(dpaa2_switch_block_cb_list); static int dpaa2_switch_port_acl_tbl_bind(struct ethsw_port_priv *port_priv, struct dpaa2_switch_filter_block *block) { … } static int dpaa2_switch_port_acl_tbl_unbind(struct ethsw_port_priv *port_priv, struct dpaa2_switch_filter_block *block) { … } static int dpaa2_switch_port_block_bind(struct ethsw_port_priv *port_priv, struct dpaa2_switch_filter_block *block) { … } static int dpaa2_switch_port_block_unbind(struct ethsw_port_priv *port_priv, struct dpaa2_switch_filter_block *block) { … } static int dpaa2_switch_setup_tc_block_bind(struct net_device *netdev, struct flow_block_offload *f) { … } static void dpaa2_switch_setup_tc_block_unbind(struct net_device *netdev, struct flow_block_offload *f) { … } static int dpaa2_switch_setup_tc_block(struct net_device *netdev, struct flow_block_offload *f) { … } static int dpaa2_switch_port_setup_tc(struct net_device *netdev, enum tc_setup_type type, void *type_data) { … } static const struct net_device_ops dpaa2_switch_port_ops = …; bool dpaa2_switch_port_dev_check(const struct net_device *netdev) { … } static int dpaa2_switch_port_connect_mac(struct ethsw_port_priv *port_priv) { … } static void dpaa2_switch_port_disconnect_mac(struct ethsw_port_priv *port_priv) { … } static irqreturn_t dpaa2_switch_irq0_handler_thread(int irq_num, void *arg) { … } static int dpaa2_switch_setup_irqs(struct fsl_mc_device *sw_dev) { … } static void dpaa2_switch_teardown_irqs(struct fsl_mc_device *sw_dev) { … } static int dpaa2_switch_port_set_learning(struct ethsw_port_priv *port_priv, bool enable) { … } static int dpaa2_switch_port_attr_stp_state_set(struct net_device *netdev, u8 state) { … } static int dpaa2_switch_port_flood(struct ethsw_port_priv *port_priv, struct switchdev_brport_flags flags) { … } static int dpaa2_switch_port_pre_bridge_flags(struct net_device *netdev, struct switchdev_brport_flags flags, struct netlink_ext_ack *extack) { … } static int dpaa2_switch_port_bridge_flags(struct net_device *netdev, struct switchdev_brport_flags flags, struct netlink_ext_ack *extack) { … } static int dpaa2_switch_port_attr_set(struct net_device *netdev, const void *ctx, const struct switchdev_attr *attr, struct netlink_ext_ack *extack) { … } int dpaa2_switch_port_vlans_add(struct net_device *netdev, const struct switchdev_obj_port_vlan *vlan) { … } static int dpaa2_switch_port_lookup_address(struct net_device *netdev, int is_uc, const unsigned char *addr) { … } static int dpaa2_switch_port_mdb_add(struct net_device *netdev, const struct switchdev_obj_port_mdb *mdb) { … } static int dpaa2_switch_port_obj_add(struct net_device *netdev, const struct switchdev_obj *obj) { … } static int dpaa2_switch_port_del_vlan(struct ethsw_port_priv *port_priv, u16 vid) { … } int dpaa2_switch_port_vlans_del(struct net_device *netdev, const struct switchdev_obj_port_vlan *vlan) { … } static int dpaa2_switch_port_mdb_del(struct net_device *netdev, const struct switchdev_obj_port_mdb *mdb) { … } static int dpaa2_switch_port_obj_del(struct net_device *netdev, const struct switchdev_obj *obj) { … } static int dpaa2_switch_port_attr_set_event(struct net_device *netdev, struct switchdev_notifier_port_attr_info *ptr) { … } static int dpaa2_switch_port_bridge_join(struct net_device *netdev, struct net_device *upper_dev, struct netlink_ext_ack *extack) { … } static int dpaa2_switch_port_clear_rxvlan(struct net_device *vdev, int vid, void *arg) { … } static int dpaa2_switch_port_restore_rxvlan(struct net_device *vdev, int vid, void *arg) { … } static void dpaa2_switch_port_pre_bridge_leave(struct net_device *netdev) { … } static int dpaa2_switch_port_bridge_leave(struct net_device *netdev) { … } static int dpaa2_switch_prevent_bridging_with_8021q_upper(struct net_device *netdev) { … } static int dpaa2_switch_prechangeupper_sanity_checks(struct net_device *netdev, struct net_device *upper_dev, struct netlink_ext_ack *extack) { … } static int dpaa2_switch_port_prechangeupper(struct net_device *netdev, struct netdev_notifier_changeupper_info *info) { … } static int dpaa2_switch_port_changeupper(struct net_device *netdev, struct netdev_notifier_changeupper_info *info) { … } static int dpaa2_switch_port_netdevice_event(struct notifier_block *nb, unsigned long event, void *ptr) { … } struct ethsw_switchdev_event_work { … }; static void dpaa2_switch_event_work(struct work_struct *work) { … } /* Called under rcu_read_lock() */ static int dpaa2_switch_port_event(struct notifier_block *nb, unsigned long event, void *ptr) { … } static int dpaa2_switch_port_obj_event(unsigned long event, struct net_device *netdev, struct switchdev_notifier_port_obj_info *port_obj_info) { … } static int dpaa2_switch_port_blocking_event(struct notifier_block *nb, unsigned long event, void *ptr) { … } /* Build a linear skb based on a single-buffer frame descriptor */ static struct sk_buff *dpaa2_switch_build_linear_skb(struct ethsw_core *ethsw, const struct dpaa2_fd *fd) { … } static void dpaa2_switch_tx_conf(struct dpaa2_switch_fq *fq, const struct dpaa2_fd *fd) { … } static void dpaa2_switch_rx(struct dpaa2_switch_fq *fq, const struct dpaa2_fd *fd) { … } static void dpaa2_switch_detect_features(struct ethsw_core *ethsw) { … } static int dpaa2_switch_setup_fqs(struct ethsw_core *ethsw) { … } /* Free buffers acquired from the buffer pool or which were meant to * be released in the pool */ static void dpaa2_switch_free_bufs(struct ethsw_core *ethsw, u64 *buf_array, int count) { … } /* Perform a single release command to add buffers * to the specified buffer pool */ static int dpaa2_switch_add_bufs(struct ethsw_core *ethsw, u16 bpid) { … } static int dpaa2_switch_refill_bp(struct ethsw_core *ethsw) { … } static int dpaa2_switch_seed_bp(struct ethsw_core *ethsw) { … } static void dpaa2_switch_drain_bp(struct ethsw_core *ethsw) { … } static int dpaa2_switch_setup_dpbp(struct ethsw_core *ethsw) { … } static void dpaa2_switch_free_dpbp(struct ethsw_core *ethsw) { … } static int dpaa2_switch_alloc_rings(struct ethsw_core *ethsw) { … } static void dpaa2_switch_destroy_rings(struct ethsw_core *ethsw) { … } static int dpaa2_switch_pull_fq(struct dpaa2_switch_fq *fq) { … } /* Consume all frames pull-dequeued into the store */ static int dpaa2_switch_store_consume(struct dpaa2_switch_fq *fq) { … } /* NAPI poll routine */ static int dpaa2_switch_poll(struct napi_struct *napi, int budget) { … } static void dpaa2_switch_fqdan_cb(struct dpaa2_io_notification_ctx *nctx) { … } static int dpaa2_switch_setup_dpio(struct ethsw_core *ethsw) { … } static void dpaa2_switch_free_dpio(struct ethsw_core *ethsw) { … } static int dpaa2_switch_ctrl_if_setup(struct ethsw_core *ethsw) { … } static void dpaa2_switch_remove_port(struct ethsw_core *ethsw, u16 port_idx) { … } static int dpaa2_switch_init(struct fsl_mc_device *sw_dev) { … } /* Add an ACL to redirect frames with specific destination MAC address to * control interface */ static int dpaa2_switch_port_trap_mac_addr(struct ethsw_port_priv *port_priv, const char *mac) { … } static int dpaa2_switch_port_init(struct ethsw_port_priv *port_priv, u16 port) { … } static void dpaa2_switch_ctrl_if_teardown(struct ethsw_core *ethsw) { … } static void dpaa2_switch_teardown(struct fsl_mc_device *sw_dev) { … } static void dpaa2_switch_remove(struct fsl_mc_device *sw_dev) { … } static int dpaa2_switch_probe_port(struct ethsw_core *ethsw, u16 port_idx) { … } static int dpaa2_switch_probe(struct fsl_mc_device *sw_dev) { … } static const struct fsl_mc_device_id dpaa2_switch_match_id_table[] = …; MODULE_DEVICE_TABLE(fslmc, dpaa2_switch_match_id_table); static struct fsl_mc_driver dpaa2_switch_drv = …; static struct notifier_block dpaa2_switch_port_nb __read_mostly = …; static struct notifier_block dpaa2_switch_port_switchdev_nb = …; static struct notifier_block dpaa2_switch_port_switchdev_blocking_nb = …; static int dpaa2_switch_register_notifiers(void) { … } static void dpaa2_switch_unregister_notifiers(void) { … } static int __init dpaa2_switch_driver_init(void) { … } static void __exit dpaa2_switch_driver_exit(void) { … } module_init(…) …; module_exit(dpaa2_switch_driver_exit); MODULE_LICENSE(…) …; MODULE_DESCRIPTION(…) …;
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