diff options
Diffstat (limited to 'include/net/flow_offload.h')
| -rw-r--r-- | include/net/flow_offload.h | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/include/net/flow_offload.h b/include/net/flow_offload.h new file mode 100644 index 000000000000..d035183c8d03 --- /dev/null +++ b/include/net/flow_offload.h @@ -0,0 +1,203 @@ +#ifndef _NET_FLOW_OFFLOAD_H +#define _NET_FLOW_OFFLOAD_H + +#include <net/flow_dissector.h> + +struct flow_match { + struct flow_dissector *dissector; + void *mask; + void *key; +}; + +struct flow_match_basic { + struct flow_dissector_key_basic *key, *mask; +}; + +struct flow_match_control { + struct flow_dissector_key_control *key, *mask; +}; + +struct flow_match_eth_addrs { + struct flow_dissector_key_eth_addrs *key, *mask; +}; + +struct flow_match_vlan { + struct flow_dissector_key_vlan *key, *mask; +}; + +struct flow_match_ipv4_addrs { + struct flow_dissector_key_ipv4_addrs *key, *mask; +}; + +struct flow_match_ipv6_addrs { + struct flow_dissector_key_ipv6_addrs *key, *mask; +}; + +struct flow_match_ip { + struct flow_dissector_key_ip *key, *mask; +}; + +struct flow_match_ports { + struct flow_dissector_key_ports *key, *mask; +}; + +struct flow_match_icmp { + struct flow_dissector_key_icmp *key, *mask; +}; + +struct flow_match_tcp { + struct flow_dissector_key_tcp *key, *mask; +}; + +struct flow_match_mpls { + struct flow_dissector_key_mpls *key, *mask; +}; + +struct flow_match_enc_keyid { + struct flow_dissector_key_keyid *key, *mask; +}; + +struct flow_match_enc_opts { + struct flow_dissector_key_enc_opts *key, *mask; +}; + +struct flow_rule; + +void flow_rule_match_basic(const struct flow_rule *rule, + struct flow_match_basic *out); +void flow_rule_match_control(const struct flow_rule *rule, + struct flow_match_control *out); +void flow_rule_match_eth_addrs(const struct flow_rule *rule, + struct flow_match_eth_addrs *out); +void flow_rule_match_vlan(const struct flow_rule *rule, + struct flow_match_vlan *out); +void flow_rule_match_ipv4_addrs(const struct flow_rule *rule, + struct flow_match_ipv4_addrs *out); +void flow_rule_match_ipv6_addrs(const struct flow_rule *rule, + struct flow_match_ipv6_addrs *out); +void flow_rule_match_ip(const struct flow_rule *rule, + struct flow_match_ip *out); +void flow_rule_match_ports(const struct flow_rule *rule, + struct flow_match_ports *out); +void flow_rule_match_tcp(const struct flow_rule *rule, + struct flow_match_tcp *out); +void flow_rule_match_icmp(const struct flow_rule *rule, + struct flow_match_icmp *out); +void flow_rule_match_mpls(const struct flow_rule *rule, + struct flow_match_mpls *out); +void flow_rule_match_enc_control(const struct flow_rule *rule, + struct flow_match_control *out); +void flow_rule_match_enc_ipv4_addrs(const struct flow_rule *rule, + struct flow_match_ipv4_addrs *out); +void flow_rule_match_enc_ipv6_addrs(const struct flow_rule *rule, + struct flow_match_ipv6_addrs *out); +void flow_rule_match_enc_ip(const struct flow_rule *rule, + struct flow_match_ip *out); +void flow_rule_match_enc_ports(const struct flow_rule *rule, + struct flow_match_ports *out); +void flow_rule_match_enc_keyid(const struct flow_rule *rule, + struct flow_match_enc_keyid *out); +void flow_rule_match_enc_opts(const struct flow_rule *rule, + struct flow_match_enc_opts *out); + +enum flow_action_id { + FLOW_ACTION_ACCEPT = 0, + FLOW_ACTION_DROP, + FLOW_ACTION_TRAP, + FLOW_ACTION_GOTO, + FLOW_ACTION_REDIRECT, + FLOW_ACTION_MIRRED, + FLOW_ACTION_VLAN_PUSH, + FLOW_ACTION_VLAN_POP, + FLOW_ACTION_VLAN_MANGLE, + FLOW_ACTION_TUNNEL_ENCAP, + FLOW_ACTION_TUNNEL_DECAP, + FLOW_ACTION_MANGLE, + FLOW_ACTION_ADD, + FLOW_ACTION_CSUM, + FLOW_ACTION_MARK, + FLOW_ACTION_WAKE, + FLOW_ACTION_QUEUE, +}; + +/* This is mirroring enum pedit_header_type definition for easy mapping between + * tc pedit action. Legacy TCA_PEDIT_KEY_EX_HDR_TYPE_NETWORK is mapped to + * FLOW_ACT_MANGLE_UNSPEC, which is supported by no driver. + */ +enum flow_action_mangle_base { + FLOW_ACT_MANGLE_UNSPEC = 0, + FLOW_ACT_MANGLE_HDR_TYPE_ETH, + FLOW_ACT_MANGLE_HDR_TYPE_IP4, + FLOW_ACT_MANGLE_HDR_TYPE_IP6, + FLOW_ACT_MANGLE_HDR_TYPE_TCP, + FLOW_ACT_MANGLE_HDR_TYPE_UDP, +}; + +struct flow_action_entry { + enum flow_action_id id; + union { + u32 chain_index; /* FLOW_ACTION_GOTO */ + struct net_device *dev; /* FLOW_ACTION_REDIRECT */ + struct { /* FLOW_ACTION_VLAN */ + u16 vid; + __be16 proto; + u8 prio; + } vlan; + struct { /* FLOW_ACTION_PACKET_EDIT */ + enum flow_action_mangle_base htype; + u32 offset; + u32 mask; + u32 val; + } mangle; + const struct ip_tunnel_info *tunnel; /* FLOW_ACTION_TUNNEL_ENCAP */ + u32 csum_flags; /* FLOW_ACTION_CSUM */ + u32 mark; /* FLOW_ACTION_MARK */ + struct { /* FLOW_ACTION_QUEUE */ + u32 ctx; + u32 index; + u8 vf; + } queue; + }; +}; + +struct flow_action { + unsigned int num_entries; + struct flow_action_entry entries[0]; +}; + +static inline bool flow_action_has_entries(const struct flow_action *action) +{ + return action->num_entries; +} + +#define flow_action_for_each(__i, __act, __actions) \ + for (__i = 0, __act = &(__actions)->entries[0]; __i < (__actions)->num_entries; __act = &(__actions)->entries[++__i]) + +struct flow_rule { + struct flow_match match; + struct flow_action action; +}; + +struct flow_rule *flow_rule_alloc(unsigned int num_actions); + +static inline bool flow_rule_match_key(const struct flow_rule *rule, + enum flow_dissector_key_id key) +{ + return dissector_uses_key(rule->match.dissector, key); +} + +struct flow_stats { + u64 pkts; + u64 bytes; + u64 lastused; +}; + +static inline void flow_stats_update(struct flow_stats *flow_stats, + u64 bytes, u64 pkts, u64 lastused) +{ + flow_stats->pkts += pkts; + flow_stats->bytes += bytes; + flow_stats->lastused = max_t(u64, flow_stats->lastused, lastused); +} + +#endif /* _NET_FLOW_OFFLOAD_H */ |