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#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,
FLOW_ACTION_SAMPLE,
};
/* 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_SAMPLE */
struct psample_group *psample_group;
u32 rate;
u32 trunc_size;
bool truncate;
} sample;
};
};
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;
}
/**
* flow_action_has_one_action() - check if exactly one action is present
* @action: tc filter flow offload action
*
* Returns true if exactly one action is present.
*/
static inline bool flow_offload_has_one_action(const struct flow_action *action)
{
return action->num_entries == 1;
}
#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 */
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