// SPDX-License-Identifier: GPL-2.0-or-later /* * drivers/net/ethernet/rocker/rocker_ofdpa.c - Rocker switch OF-DPA-like * implementation * Copyright (c) 2014 Scott Feldman <[email protected]> * Copyright (c) 2014-2016 Jiri Pirko <[email protected]> */ #include <linux/kernel.h> #include <linux/types.h> #include <linux/spinlock.h> #include <linux/hashtable.h> #include <linux/crc32.h> #include <linux/netdevice.h> #include <linux/inetdevice.h> #include <linux/if_vlan.h> #include <linux/if_bridge.h> #include <net/neighbour.h> #include <net/switchdev.h> #include <net/ip_fib.h> #include <net/nexthop.h> #include <net/arp.h> #include "rocker.h" #include "rocker_tlv.h" struct ofdpa_flow_tbl_key { … }; struct ofdpa_flow_tbl_entry { … }; struct ofdpa_group_tbl_entry { … }; struct ofdpa_fdb_tbl_entry { … }; struct ofdpa_internal_vlan_tbl_entry { … }; struct ofdpa_neigh_tbl_entry { … }; enum { … }; #define OFDPA_INTERNAL_VLAN_ID_BASE … #define OFDPA_N_INTERNAL_VLANS … #define OFDPA_VLAN_BITMAP_LEN … #define OFDPA_INTERNAL_VLAN_BITMAP_LEN … #define OFDPA_UNTAGGED_VID … struct ofdpa { … }; struct ofdpa_port { … }; static const u8 zero_mac[ETH_ALEN] = …; static const u8 ff_mac[ETH_ALEN] = …; static const u8 ll_mac[ETH_ALEN] = …; static const u8 ll_mask[ETH_ALEN] = …; static const u8 mcast_mac[ETH_ALEN] = …; static const u8 ipv4_mcast[ETH_ALEN] = …; static const u8 ipv4_mask[ETH_ALEN] = …; static const u8 ipv6_mcast[ETH_ALEN] = …; static const u8 ipv6_mask[ETH_ALEN] = …; /* Rocker priority levels for flow table entries. Higher * priority match takes precedence over lower priority match. */ enum { … }; static bool ofdpa_vlan_id_is_internal(__be16 vlan_id) { … } static __be16 ofdpa_port_vid_to_vlan(const struct ofdpa_port *ofdpa_port, u16 vid, bool *pop_vlan) { … } static u16 ofdpa_port_vlan_to_vid(const struct ofdpa_port *ofdpa_port, __be16 vlan_id) { … } static bool ofdpa_port_is_slave(const struct ofdpa_port *ofdpa_port, const char *kind) { … } static bool ofdpa_port_is_bridged(const struct ofdpa_port *ofdpa_port) { … } static bool ofdpa_port_is_ovsed(const struct ofdpa_port *ofdpa_port) { … } #define OFDPA_OP_FLAG_REMOVE … #define OFDPA_OP_FLAG_NOWAIT … #define OFDPA_OP_FLAG_LEARNED … #define OFDPA_OP_FLAG_REFRESH … static bool ofdpa_flags_nowait(int flags) { … } /************************************************************* * Flow, group, FDB, internal VLAN and neigh command prepares *************************************************************/ static int ofdpa_cmd_flow_tbl_add_ig_port(struct rocker_desc_info *desc_info, const struct ofdpa_flow_tbl_entry *entry) { … } static int ofdpa_cmd_flow_tbl_add_vlan(struct rocker_desc_info *desc_info, const struct ofdpa_flow_tbl_entry *entry) { … } static int ofdpa_cmd_flow_tbl_add_term_mac(struct rocker_desc_info *desc_info, const struct ofdpa_flow_tbl_entry *entry) { … } static int ofdpa_cmd_flow_tbl_add_ucast_routing(struct rocker_desc_info *desc_info, const struct ofdpa_flow_tbl_entry *entry) { … } static int ofdpa_cmd_flow_tbl_add_bridge(struct rocker_desc_info *desc_info, const struct ofdpa_flow_tbl_entry *entry) { … } static int ofdpa_cmd_flow_tbl_add_acl(struct rocker_desc_info *desc_info, const struct ofdpa_flow_tbl_entry *entry) { … } static int ofdpa_cmd_flow_tbl_add(const struct rocker_port *rocker_port, struct rocker_desc_info *desc_info, void *priv) { … } static int ofdpa_cmd_flow_tbl_del(const struct rocker_port *rocker_port, struct rocker_desc_info *desc_info, void *priv) { … } static int ofdpa_cmd_group_tbl_add_l2_interface(struct rocker_desc_info *desc_info, struct ofdpa_group_tbl_entry *entry) { … } static int ofdpa_cmd_group_tbl_add_l2_rewrite(struct rocker_desc_info *desc_info, const struct ofdpa_group_tbl_entry *entry) { … } static int ofdpa_cmd_group_tbl_add_group_ids(struct rocker_desc_info *desc_info, const struct ofdpa_group_tbl_entry *entry) { … } static int ofdpa_cmd_group_tbl_add_l3_unicast(struct rocker_desc_info *desc_info, const struct ofdpa_group_tbl_entry *entry) { … } static int ofdpa_cmd_group_tbl_add(const struct rocker_port *rocker_port, struct rocker_desc_info *desc_info, void *priv) { … } static int ofdpa_cmd_group_tbl_del(const struct rocker_port *rocker_port, struct rocker_desc_info *desc_info, void *priv) { … } /*************************************************** * Flow, group, FDB, internal VLAN and neigh tables ***************************************************/ static struct ofdpa_flow_tbl_entry * ofdpa_flow_tbl_find(const struct ofdpa *ofdpa, const struct ofdpa_flow_tbl_entry *match) { … } static int ofdpa_flow_tbl_add(struct ofdpa_port *ofdpa_port, int flags, struct ofdpa_flow_tbl_entry *match) { … } static int ofdpa_flow_tbl_del(struct ofdpa_port *ofdpa_port, int flags, struct ofdpa_flow_tbl_entry *match) { … } static int ofdpa_flow_tbl_do(struct ofdpa_port *ofdpa_port, int flags, struct ofdpa_flow_tbl_entry *entry) { … } static int ofdpa_flow_tbl_ig_port(struct ofdpa_port *ofdpa_port, int flags, u32 in_pport, u32 in_pport_mask, enum rocker_of_dpa_table_id goto_tbl) { … } static int ofdpa_flow_tbl_vlan(struct ofdpa_port *ofdpa_port, int flags, u32 in_pport, __be16 vlan_id, __be16 vlan_id_mask, enum rocker_of_dpa_table_id goto_tbl, bool untagged, __be16 new_vlan_id) { … } static int ofdpa_flow_tbl_term_mac(struct ofdpa_port *ofdpa_port, u32 in_pport, u32 in_pport_mask, __be16 eth_type, const u8 *eth_dst, const u8 *eth_dst_mask, __be16 vlan_id, __be16 vlan_id_mask, bool copy_to_cpu, int flags) { … } static int ofdpa_flow_tbl_bridge(struct ofdpa_port *ofdpa_port, int flags, const u8 *eth_dst, const u8 *eth_dst_mask, __be16 vlan_id, u32 tunnel_id, enum rocker_of_dpa_table_id goto_tbl, u32 group_id, bool copy_to_cpu) { … } static int ofdpa_flow_tbl_ucast4_routing(struct ofdpa_port *ofdpa_port, __be16 eth_type, __be32 dst, __be32 dst_mask, u32 priority, enum rocker_of_dpa_table_id goto_tbl, u32 group_id, struct fib_info *fi, int flags) { … } static int ofdpa_flow_tbl_acl(struct ofdpa_port *ofdpa_port, int flags, u32 in_pport, u32 in_pport_mask, const u8 *eth_src, const u8 *eth_src_mask, const u8 *eth_dst, const u8 *eth_dst_mask, __be16 eth_type, __be16 vlan_id, __be16 vlan_id_mask, u8 ip_proto, u8 ip_proto_mask, u8 ip_tos, u8 ip_tos_mask, u32 group_id) { … } static struct ofdpa_group_tbl_entry * ofdpa_group_tbl_find(const struct ofdpa *ofdpa, const struct ofdpa_group_tbl_entry *match) { … } static void ofdpa_group_tbl_entry_free(struct ofdpa_group_tbl_entry *entry) { … } static int ofdpa_group_tbl_add(struct ofdpa_port *ofdpa_port, int flags, struct ofdpa_group_tbl_entry *match) { … } static int ofdpa_group_tbl_del(struct ofdpa_port *ofdpa_port, int flags, struct ofdpa_group_tbl_entry *match) { … } static int ofdpa_group_tbl_do(struct ofdpa_port *ofdpa_port, int flags, struct ofdpa_group_tbl_entry *entry) { … } static int ofdpa_group_l2_interface(struct ofdpa_port *ofdpa_port, int flags, __be16 vlan_id, u32 out_pport, int pop_vlan) { … } static int ofdpa_group_l2_fan_out(struct ofdpa_port *ofdpa_port, int flags, u8 group_count, const u32 *group_ids, u32 group_id) { … } static int ofdpa_group_l2_flood(struct ofdpa_port *ofdpa_port, int flags, __be16 vlan_id, u8 group_count, const u32 *group_ids, u32 group_id) { … } static int ofdpa_group_l3_unicast(struct ofdpa_port *ofdpa_port, int flags, u32 index, const u8 *src_mac, const u8 *dst_mac, __be16 vlan_id, bool ttl_check, u32 pport) { … } static struct ofdpa_neigh_tbl_entry * ofdpa_neigh_tbl_find(const struct ofdpa *ofdpa, __be32 ip_addr) { … } static void ofdpa_neigh_add(struct ofdpa *ofdpa, struct ofdpa_neigh_tbl_entry *entry) { … } static void ofdpa_neigh_del(struct ofdpa_neigh_tbl_entry *entry) { … } static void ofdpa_neigh_update(struct ofdpa_neigh_tbl_entry *entry, const u8 *eth_dst, bool ttl_check) { … } static int ofdpa_port_ipv4_neigh(struct ofdpa_port *ofdpa_port, int flags, __be32 ip_addr, const u8 *eth_dst) { … } static int ofdpa_port_ipv4_resolve(struct ofdpa_port *ofdpa_port, __be32 ip_addr) { … } static int ofdpa_port_ipv4_nh(struct ofdpa_port *ofdpa_port, int flags, __be32 ip_addr, u32 *index) { … } static struct ofdpa_port *ofdpa_port_get(const struct ofdpa *ofdpa, int port_index) { … } static int ofdpa_port_vlan_flood_group(struct ofdpa_port *ofdpa_port, int flags, __be16 vlan_id) { … } static int ofdpa_port_vlan_l2_groups(struct ofdpa_port *ofdpa_port, int flags, __be16 vlan_id, bool pop_vlan) { … } static struct ofdpa_ctrl { … } ofdpa_ctrls[] = …; static int ofdpa_port_ctrl_vlan_acl(struct ofdpa_port *ofdpa_port, int flags, const struct ofdpa_ctrl *ctrl, __be16 vlan_id) { … } static int ofdpa_port_ctrl_vlan_bridge(struct ofdpa_port *ofdpa_port, int flags, const struct ofdpa_ctrl *ctrl, __be16 vlan_id) { … } static int ofdpa_port_ctrl_vlan_term(struct ofdpa_port *ofdpa_port, int flags, const struct ofdpa_ctrl *ctrl, __be16 vlan_id) { … } static int ofdpa_port_ctrl_vlan(struct ofdpa_port *ofdpa_port, int flags, const struct ofdpa_ctrl *ctrl, __be16 vlan_id) { … } static int ofdpa_port_ctrl_vlan_add(struct ofdpa_port *ofdpa_port, int flags, __be16 vlan_id) { … } static int ofdpa_port_ctrl(struct ofdpa_port *ofdpa_port, int flags, const struct ofdpa_ctrl *ctrl) { … } static int ofdpa_port_vlan(struct ofdpa_port *ofdpa_port, int flags, u16 vid) { … } static int ofdpa_port_ig_tbl(struct ofdpa_port *ofdpa_port, int flags) { … } struct ofdpa_fdb_learn_work { … }; static void ofdpa_port_fdb_learn_work(struct work_struct *work) { … } static int ofdpa_port_fdb_learn(struct ofdpa_port *ofdpa_port, int flags, const u8 *addr, __be16 vlan_id) { … } static struct ofdpa_fdb_tbl_entry * ofdpa_fdb_tbl_find(const struct ofdpa *ofdpa, const struct ofdpa_fdb_tbl_entry *match) { … } static int ofdpa_port_fdb(struct ofdpa_port *ofdpa_port, const unsigned char *addr, __be16 vlan_id, int flags) { … } static int ofdpa_port_fdb_flush(struct ofdpa_port *ofdpa_port, int flags) { … } static void ofdpa_fdb_cleanup(struct timer_list *t) { … } static int ofdpa_port_router_mac(struct ofdpa_port *ofdpa_port, int flags, __be16 vlan_id) { … } static int ofdpa_port_fwding(struct ofdpa_port *ofdpa_port, int flags) { … } static int ofdpa_port_stp_update(struct ofdpa_port *ofdpa_port, int flags, u8 state) { … } static int ofdpa_port_fwd_enable(struct ofdpa_port *ofdpa_port, int flags) { … } static int ofdpa_port_fwd_disable(struct ofdpa_port *ofdpa_port, int flags) { … } static int ofdpa_port_vlan_add(struct ofdpa_port *ofdpa_port, u16 vid, u16 flags) { … } static int ofdpa_port_vlan_del(struct ofdpa_port *ofdpa_port, u16 vid, u16 flags) { … } static struct ofdpa_internal_vlan_tbl_entry * ofdpa_internal_vlan_tbl_find(const struct ofdpa *ofdpa, int ifindex) { … } static __be16 ofdpa_port_internal_vlan_id_get(struct ofdpa_port *ofdpa_port, int ifindex) { … } static int ofdpa_port_fib_ipv4(struct ofdpa_port *ofdpa_port, __be32 dst, int dst_len, struct fib_info *fi, u32 tb_id, int flags) { … } static void ofdpa_port_internal_vlan_id_put(const struct ofdpa_port *ofdpa_port, int ifindex) { … } /********************************** * Rocker world ops implementation **********************************/ static int ofdpa_init(struct rocker *rocker) { … } static void ofdpa_fini(struct rocker *rocker) { … } static int ofdpa_port_pre_init(struct rocker_port *rocker_port) { … } static int ofdpa_port_init(struct rocker_port *rocker_port) { … } static void ofdpa_port_fini(struct rocker_port *rocker_port) { … } static int ofdpa_port_open(struct rocker_port *rocker_port) { … } static void ofdpa_port_stop(struct rocker_port *rocker_port) { … } static int ofdpa_port_attr_stp_state_set(struct rocker_port *rocker_port, u8 state) { … } static int ofdpa_port_attr_bridge_flags_set(struct rocker_port *rocker_port, unsigned long brport_flags) { … } static int ofdpa_port_attr_bridge_flags_support_get(const struct rocker_port * rocker_port, unsigned long * p_brport_flags_support) { … } static int ofdpa_port_attr_bridge_ageing_time_set(struct rocker_port *rocker_port, u32 ageing_time) { … } static int ofdpa_port_obj_vlan_add(struct rocker_port *rocker_port, const struct switchdev_obj_port_vlan *vlan) { … } static int ofdpa_port_obj_vlan_del(struct rocker_port *rocker_port, const struct switchdev_obj_port_vlan *vlan) { … } static int ofdpa_port_obj_fdb_add(struct rocker_port *rocker_port, u16 vid, const unsigned char *addr) { … } static int ofdpa_port_obj_fdb_del(struct rocker_port *rocker_port, u16 vid, const unsigned char *addr) { … } static int ofdpa_port_bridge_join(struct ofdpa_port *ofdpa_port, struct net_device *bridge, struct netlink_ext_ack *extack) { … } static int ofdpa_port_bridge_leave(struct ofdpa_port *ofdpa_port) { … } static int ofdpa_port_ovs_changed(struct ofdpa_port *ofdpa_port, struct net_device *master) { … } static int ofdpa_port_master_linked(struct rocker_port *rocker_port, struct net_device *master, struct netlink_ext_ack *extack) { … } static int ofdpa_port_master_unlinked(struct rocker_port *rocker_port, struct net_device *master) { … } static int ofdpa_port_neigh_update(struct rocker_port *rocker_port, struct neighbour *n) { … } static int ofdpa_port_neigh_destroy(struct rocker_port *rocker_port, struct neighbour *n) { … } static int ofdpa_port_ev_mac_vlan_seen(struct rocker_port *rocker_port, const unsigned char *addr, __be16 vlan_id) { … } static struct ofdpa_port *ofdpa_port_dev_lower_find(struct net_device *dev, struct rocker *rocker) { … } static int ofdpa_fib4_add(struct rocker *rocker, const struct fib_entry_notifier_info *fen_info) { … } static int ofdpa_fib4_del(struct rocker *rocker, const struct fib_entry_notifier_info *fen_info) { … } static void ofdpa_fib4_abort(struct rocker *rocker) { … } struct rocker_world_ops rocker_ofdpa_ops = …;
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