// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) /* Copyright (C) 2017-2018 Netronome Systems, Inc. */ #include <linux/etherdevice.h> #include <linux/inetdevice.h> #include <net/netevent.h> #include <linux/idr.h> #include <net/dst_metadata.h> #include <net/arp.h> #include "cmsg.h" #include "main.h" #include "../nfp_net_repr.h" #include "../nfp_net.h" #define NFP_FL_MAX_ROUTES … #define NFP_TUN_PRE_TUN_RULE_LIMIT … #define NFP_TUN_PRE_TUN_RULE_DEL … #define NFP_TUN_PRE_TUN_IDX_BIT … #define NFP_TUN_PRE_TUN_IPV6_BIT … /** * struct nfp_tun_pre_tun_rule - rule matched before decap * @flags: options for the rule offset * @port_idx: index of destination MAC address for the rule * @vlan_tci: VLAN info associated with MAC * @host_ctx_id: stats context of rule to update */ struct nfp_tun_pre_tun_rule { … }; /** * struct nfp_tun_active_tuns - periodic message of active tunnels * @seq: sequence number of the message * @count: number of tunnels report in message * @flags: options part of the request * @tun_info.ipv4: dest IPv4 address of active route * @tun_info.egress_port: port the encapsulated packet egressed * @tun_info.extra: reserved for future use * @tun_info: tunnels that have sent traffic in reported period */ struct nfp_tun_active_tuns { … }; /** * struct nfp_tun_active_tuns_v6 - periodic message of active IPv6 tunnels * @seq: sequence number of the message * @count: number of tunnels report in message * @flags: options part of the request * @tun_info.ipv6: dest IPv6 address of active route * @tun_info.egress_port: port the encapsulated packet egressed * @tun_info.extra: reserved for future use * @tun_info: tunnels that have sent traffic in reported period */ struct nfp_tun_active_tuns_v6 { … }; /** * struct nfp_tun_req_route_ipv4 - NFP requests a route/neighbour lookup * @ingress_port: ingress port of packet that signalled request * @ipv4_addr: destination ipv4 address for route * @reserved: reserved for future use */ struct nfp_tun_req_route_ipv4 { … }; /** * struct nfp_tun_req_route_ipv6 - NFP requests an IPv6 route/neighbour lookup * @ingress_port: ingress port of packet that signalled request * @ipv6_addr: destination ipv6 address for route */ struct nfp_tun_req_route_ipv6 { … }; /** * struct nfp_offloaded_route - routes that are offloaded to the NFP * @list: list pointer * @ip_add: destination of route - can be IPv4 or IPv6 */ struct nfp_offloaded_route { … }; #define NFP_FL_IPV4_ADDRS_MAX … /** * struct nfp_tun_ipv4_addr - set the IP address list on the NFP * @count: number of IPs populated in the array * @ipv4_addr: array of IPV4_ADDRS_MAX 32 bit IPv4 addresses */ struct nfp_tun_ipv4_addr { … }; /** * struct nfp_ipv4_addr_entry - cached IPv4 addresses * @ipv4_addr: IP address * @ref_count: number of rules currently using this IP * @list: list pointer */ struct nfp_ipv4_addr_entry { … }; #define NFP_FL_IPV6_ADDRS_MAX … /** * struct nfp_tun_ipv6_addr - set the IP address list on the NFP * @count: number of IPs populated in the array * @ipv6_addr: array of IPV6_ADDRS_MAX 128 bit IPv6 addresses */ struct nfp_tun_ipv6_addr { … }; #define NFP_TUN_MAC_OFFLOAD_DEL_FLAG … /** * struct nfp_tun_mac_addr_offload - configure MAC address of tunnel EP on NFP * @flags: MAC address offload options * @count: number of MAC addresses in the message (should be 1) * @index: index of MAC address in the lookup table * @addr: interface MAC address */ struct nfp_tun_mac_addr_offload { … }; /** * struct nfp_neigh_update_work - update neighbour information to nfp * @work: Work queue for writing neigh to the nfp * @n: neighbour entry * @app: Back pointer to app */ struct nfp_neigh_update_work { … }; enum nfp_flower_mac_offload_cmd { … }; #define NFP_MAX_MAC_INDEX … /** * struct nfp_tun_offloaded_mac - hashtable entry for an offloaded MAC * @ht_node: Hashtable entry * @addr: Offloaded MAC address * @index: Offloaded index for given MAC address * @ref_count: Number of devs using this MAC address * @repr_list: List of reprs sharing this MAC address * @bridge_count: Number of bridge/internal devs with MAC */ struct nfp_tun_offloaded_mac { … }; static const struct rhashtable_params offloaded_macs_params = …; void nfp_tunnel_keep_alive(struct nfp_app *app, struct sk_buff *skb) { … } void nfp_tunnel_keep_alive_v6(struct nfp_app *app, struct sk_buff *skb) { … } static int nfp_flower_xmit_tun_conf(struct nfp_app *app, u8 mtype, u16 plen, void *pdata, gfp_t flag) { … } static void nfp_tun_mutual_link(struct nfp_predt_entry *predt, struct nfp_neigh_entry *neigh) { … } static void nfp_tun_link_predt_entries(struct nfp_app *app, struct nfp_neigh_entry *nn_entry) { … } void nfp_tun_link_and_update_nn_entries(struct nfp_app *app, struct nfp_predt_entry *predt) { … } static void nfp_tun_cleanup_nn_entries(struct nfp_app *app) { … } void nfp_tun_unlink_and_update_nn_entries(struct nfp_app *app, struct nfp_predt_entry *predt) { … } static void nfp_tun_write_neigh(struct net_device *netdev, struct nfp_app *app, void *flow, struct neighbour *neigh, bool is_ipv6, bool override) { … } static void nfp_tun_release_neigh_update_work(struct nfp_neigh_update_work *update_work) { … } static void nfp_tun_neigh_update(struct work_struct *work) { … } static struct nfp_neigh_update_work * nfp_tun_alloc_neigh_update_work(struct nfp_app *app, struct neighbour *n) { … } static int nfp_tun_neigh_event_handler(struct notifier_block *nb, unsigned long event, void *ptr) { … } void nfp_tunnel_request_route_v4(struct nfp_app *app, struct sk_buff *skb) { … } void nfp_tunnel_request_route_v6(struct nfp_app *app, struct sk_buff *skb) { … } static void nfp_tun_write_ipv4_list(struct nfp_app *app) { … } void nfp_tunnel_add_ipv4_off(struct nfp_app *app, __be32 ipv4) { … } void nfp_tunnel_del_ipv4_off(struct nfp_app *app, __be32 ipv4) { … } static void nfp_tun_write_ipv6_list(struct nfp_app *app) { … } struct nfp_ipv6_addr_entry * nfp_tunnel_add_ipv6_off(struct nfp_app *app, struct in6_addr *ipv6) { … } void nfp_tunnel_put_ipv6_off(struct nfp_app *app, struct nfp_ipv6_addr_entry *entry) { … } static int __nfp_tunnel_offload_mac(struct nfp_app *app, const u8 *mac, u16 idx, bool del) { … } static bool nfp_tunnel_port_is_phy_repr(int port) { … } static u16 nfp_tunnel_get_mac_idx_from_phy_port_id(int port) { … } static u16 nfp_tunnel_get_global_mac_idx_from_ida(int id) { … } static int nfp_tunnel_get_ida_from_global_mac_idx(u16 nfp_mac_idx) { … } static bool nfp_tunnel_is_mac_idx_global(u16 nfp_mac_idx) { … } static struct nfp_tun_offloaded_mac * nfp_tunnel_lookup_offloaded_macs(struct nfp_app *app, const u8 *mac) { … } static void nfp_tunnel_offloaded_macs_inc_ref_and_link(struct nfp_tun_offloaded_mac *entry, struct net_device *netdev, bool mod) { … } static int nfp_tunnel_add_shared_mac(struct nfp_app *app, struct net_device *netdev, int port, bool mod) { … } static int nfp_tunnel_del_shared_mac(struct nfp_app *app, struct net_device *netdev, const u8 *mac, bool mod) { … } static int nfp_tunnel_offload_mac(struct nfp_app *app, struct net_device *netdev, enum nfp_flower_mac_offload_cmd cmd) { … } int nfp_tunnel_mac_event_handler(struct nfp_app *app, struct net_device *netdev, unsigned long event, void *ptr) { … } int nfp_flower_xmit_pre_tun_flow(struct nfp_app *app, struct nfp_fl_payload *flow) { … } int nfp_flower_xmit_pre_tun_del_flow(struct nfp_app *app, struct nfp_fl_payload *flow) { … } int nfp_tunnel_config_start(struct nfp_app *app) { … } void nfp_tunnel_config_stop(struct nfp_app *app) { … }
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