X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=lib%2Fflow.h;h=2dd0c4aec8817ace0e98319253244ea18a3190af;hb=6767a2cce9a6412b3a41a927c4d56b9f0e1ec36f;hp=03ad32c50b915bcbc177350c8732a13244f3643b;hpb=dd2cb550e56ddc937b917e29a5ccdb920787c7ef;p=openvswitch

diff --git a/lib/flow.h b/lib/flow.h
index 03ad32c5..2dd0c4ae 100644
--- a/lib/flow.h
+++ b/lib/flow.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2009, 2010 Nicira Networks.
+ * Copyright (c) 2008, 2009, 2010, 2011 Nicira Networks.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -27,14 +27,19 @@
 #include "openvswitch/datapath-protocol.h"
 #include "util.h"
 
+struct dpif_flow_stats;
 struct ds;
 struct flow_wildcards;
 struct ofp_match;
 struct ofpbuf;
 
-#define FLOW_N_REGS 3
+#define FLOW_N_REGS 4
 BUILD_ASSERT_DECL(FLOW_N_REGS <= NXM_NX_MAX_REGS);
 
+/* Used for struct flow's dl_type member for frames that have no Ethernet
+ * type, that is, pure 802.2 frames. */
+#define FLOW_DL_TYPE_NONE 0x5ff
+
 struct flow {
     ovs_be64 tun_id;            /* Encapsulating tunnel ID. */
     uint32_t regs[FLOW_N_REGS]; /* Registers. */
@@ -49,13 +54,12 @@ struct flow {
     uint8_t dl_dst[6];          /* Ethernet destination address. */
     uint8_t nw_proto;           /* IP protocol or low 8 bits of ARP opcode. */
     uint8_t nw_tos;             /* IP ToS (DSCP field, 6 bits). */
-    uint32_t reserved;		/* Reserved for 64-bit packing. */
 };
 
 /* Assert that there are FLOW_SIG_SIZE bytes of significant data in "struct
  * flow", followed by FLOW_PAD_SIZE bytes of padding. */
 #define FLOW_SIG_SIZE (40 + FLOW_N_REGS * 4)
-#define FLOW_PAD_SIZE 4
+#define FLOW_PAD_SIZE 0
 BUILD_ASSERT_DECL(offsetof(struct flow, nw_tos) == FLOW_SIG_SIZE - 1);
 BUILD_ASSERT_DECL(sizeof(((struct flow *)0)->nw_tos) == 1);
 BUILD_ASSERT_DECL(sizeof(struct flow) == FLOW_SIG_SIZE + FLOW_PAD_SIZE);
@@ -63,7 +67,7 @@ BUILD_ASSERT_DECL(sizeof(struct flow) == FLOW_SIG_SIZE + FLOW_PAD_SIZE);
 int flow_extract(struct ofpbuf *, uint64_t tun_id, uint16_t in_port,
                  struct flow *);
 void flow_extract_stats(const struct flow *flow, struct ofpbuf *packet,
-        struct odp_flow_stats *stats);
+                        struct dpif_flow_stats *);
 char *flow_to_string(const struct flow *);
 void flow_format(struct ds *, const struct flow *);
 void flow_print(FILE *, const struct flow *);
@@ -108,18 +112,17 @@ typedef unsigned int OVS_BITWISE flow_wildcards_t;
 #define FWW_TP_DST      ((OVS_FORCE flow_wildcards_t) (1 << 7))
 /* Same meanings as corresponding OFPFW_* bits, but differ in value. */
 #define FWW_NW_TOS      ((OVS_FORCE flow_wildcards_t) (1 << 1))
-/* No OFPFW_* bits, but they do have corresponding OVSFW_* bits. */
-#define FWW_TUN_ID      ((OVS_FORCE flow_wildcards_t) (1 << 8))
 /* No corresponding OFPFW_* or OVSFW_* bits. */
-#define FWW_ETH_MCAST   ((OVS_FORCE flow_wildcards_t) (1 << 9))
+#define FWW_ETH_MCAST   ((OVS_FORCE flow_wildcards_t) (1 << 8))
                                                        /* multicast bit only */
-#define FWW_ALL         ((OVS_FORCE flow_wildcards_t) (((1 << 10)) - 1))
+#define FWW_ALL         ((OVS_FORCE flow_wildcards_t) (((1 << 9)) - 1))
 
 /* Information on wildcards for a flow, as a supplement to "struct flow".
  *
  * Note that the meaning of 1-bits in 'wildcards' is opposite that of 1-bits in
  * the rest of the members. */
 struct flow_wildcards {
+    ovs_be64 tun_id_mask;       /* 1-bit in each significant tun_id bit. */
     flow_wildcards_t wildcards; /* 1-bit in each FWW_* wildcarded field. */
     uint32_t reg_masks[FLOW_N_REGS]; /* 1-bit in each significant regs bit. */
     ovs_be32 nw_src_mask;       /* 1-bit in each significant nw_src bit. */
@@ -147,5 +150,6 @@ bool flow_wildcards_has_extra(const struct flow_wildcards *,
 uint32_t flow_wildcards_hash(const struct flow_wildcards *);
 bool flow_wildcards_equal(const struct flow_wildcards *,
                           const struct flow_wildcards *);
+uint32_t flow_hash_symmetric_l4(const struct flow *flow, uint32_t basis);
 
 #endif /* flow.h */