dpif-netdev: user space datapath recirculation

[sliver-openvswitch.git] / lib / packets.h

diff --git a/lib/packets.h b/lib/packets.h
index 8e21fa8..30e4d13 100644 (file)
--- a/lib/packets.h
+++ b/lib/packets.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
+ * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014 Nicira, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -33,14 +33,34 @@ struct ds;
 
 /* Datapath packet metadata */
 struct pkt_metadata {
+    uint32_t recirc_id;         /* Recirculation id carried with the
+                                   recirculating packets. 0 for packets
+                                   received from the wire. */
+    uint32_t dp_hash;           /* hash value computed by the recirculation
+                                   action. */
     struct flow_tnl tunnel;     /* Encapsulating tunnel parameters. */
     uint32_t skb_priority;      /* Packet priority for QoS. */
     uint32_t pkt_mark;          /* Packet mark. */
-    odp_port_t in_port;         /* Input port. */
+    union flow_in_port in_port; /* Input port. */
 };
 
 #define PKT_METADATA_INITIALIZER(PORT) \
-    (struct pkt_metadata){ { 0, 0, 0, 0, 0, 0}, 0, 0, (PORT) }
+    (struct pkt_metadata){ 0, 0, { 0, 0, 0, 0, 0, 0}, 0, 0, {(PORT)} }
+
+static inline struct pkt_metadata
+pkt_metadata_from_flow(const struct flow *flow)
+{
+    struct pkt_metadata md;
+
+    md.recirc_id = flow->recirc_id;
+    md.dp_hash = flow->dp_hash;
+    md.tunnel = flow->tunnel;
+    md.skb_priority = flow->skb_priority;
+    md.pkt_mark = flow->pkt_mark;
+    md.in_port = flow->in_port;
+
+    return md;
+}
 
 bool dpid_from_string(const char *s, uint64_t *dpidp);
 
@@ -154,8 +174,6 @@ void compose_rarp(struct ofpbuf *, const uint8_t eth_src[ETH_ADDR_LEN]);
 void eth_push_vlan(struct ofpbuf *, ovs_be16 tpid, ovs_be16 tci);
 void eth_pop_vlan(struct ofpbuf *);
 
-void set_ethertype(struct ofpbuf *packet, ovs_be16 eth_type);
-
 const char *eth_from_hex(const char *hex, struct ofpbuf **packetp);
 void eth_format_masked(const uint8_t eth[ETH_ADDR_LEN],
                        const uint8_t mask[ETH_ADDR_LEN], struct ds *s);
@@ -627,6 +645,18 @@ static inline bool is_ip_any(const struct flow *flow)
     return dl_type_is_ip_any(flow->dl_type);
 }
 
+static inline bool is_icmpv4(const struct flow *flow)
+{
+    return (flow->dl_type == htons(ETH_TYPE_IP)
+            && flow->nw_proto == IPPROTO_ICMP);
+}
+
+static inline bool is_icmpv6(const struct flow *flow)
+{
+    return (flow->dl_type == htons(ETH_TYPE_IPV6)
+            && flow->nw_proto == IPPROTO_ICMPV6);
+}
+
 void format_ipv6_addr(char *addr_str, const struct in6_addr *addr);
 void print_ipv6_addr(struct ds *string, const struct in6_addr *addr);
 void print_ipv6_masked(struct ds *string, const struct in6_addr *addr,
@@ -652,7 +682,6 @@ void packet_set_tcp_port(struct ofpbuf *, ovs_be16 src, ovs_be16 dst);
 void packet_set_udp_port(struct ofpbuf *, ovs_be16 src, ovs_be16 dst);
 void packet_set_sctp_port(struct ofpbuf *, ovs_be16 src, ovs_be16 dst);
 
-uint16_t packet_get_tcp_flags(const struct ofpbuf *, const struct flow *);
 void packet_format_tcp_flags(struct ds *, uint16_t);
 const char *packet_tcp_flag_to_string(uint32_t flag);