Add ability to restrict flow mods and flow stats requests to cookies.

[sliver-openvswitch.git] / lib / nx-match.h

diff --git a/lib/nx-match.h b/lib/nx-match.h
index 04da239..c7ee0f8 100644 (file)
--- a/lib/nx-match.h
+++ b/lib/nx-match.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2010 Nicira Networks.
+ * Copyright (c) 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.
@@ -35,8 +35,9 @@ struct nx_action_reg_move;
  */
 
 int nx_pull_match(struct ofpbuf *, unsigned int match_len, uint16_t priority,
-                  struct cls_rule *);
-int nx_put_match(struct ofpbuf *, const struct cls_rule *);
+                  struct cls_rule *, ovs_be64 *cookie, ovs_be64 *cookie_mask);
+int nx_put_match(struct ofpbuf *, const struct cls_rule *,
+                 ovs_be64 cookie, ovs_be64 cookie_mask);
 
 char *nx_match_to_string(const uint8_t *, unsigned int match_len);
 int nx_match_from_string(const char *, struct ofpbuf *);
@@ -90,8 +91,8 @@ nxm_decode_n_bits(ovs_be16 ofs_nbits)
     return (ntohs(ofs_nbits) & 0x3f) + 1;
 }
 \f
-/* Upper bound on the length of an nx_match.  The longest nx_match (assuming
- * we implement 4 registers) would be:
+/* Upper bound on the length of an nx_match.  The longest nx_match (an
+ * IPV6 neighbor discovery message using 5 registers) would be:
  *
  *                   header  value  mask  total
  *                   ------  -----  ----  -----
@@ -101,9 +102,13 @@ nxm_decode_n_bits(ovs_be16 ofs_nbits)
  *  NXM_OF_ETH_TYPE     4       2    --      6
  *  NXM_OF_VLAN_TCI     4       2     2      8
  *  NXM_OF_IP_TOS       4       1    --      5
+ *  NXM_NX_IP_ECN       4       1    --      5
+ *  NXM_OF_IP_TTL       4       1    --      5
+ *  NXM_NX_IP_FRAG      4       1     1      8
  *  NXM_OF_IP_PROTO     4       2    --      6
  *  NXM_OF_IPV6_SRC_W   4      16    16     36
  *  NXM_OF_IPV6_DST_W   4      16    16     36
+ *  NXM_OF_IPV6_LABEL   4       4    --      8
  *  NXM_OF_ICMP_TYPE    4       1    --      5
  *  NXM_OF_ICMP_CODE    4       1    --      5
  *  NXM_NX_ND_TARGET    4      16    --     20
@@ -112,13 +117,14 @@ nxm_decode_n_bits(ovs_be16 ofs_nbits)
  *  NXM_NX_REG_W(1)     4       4     4     12
  *  NXM_NX_REG_W(2)     4       4     4     12
  *  NXM_NX_REG_W(3)     4       4     4     12
+ *  NXM_NX_REG_W(4)     4       4     4     12
  *  NXM_NX_TUN_ID_W     4       8     8     20
  *  -------------------------------------------
- *  total                                  237
+ *  total                                  275
  *
  * So this value is conservative.
  */
-#define NXM_MAX_LEN 256
+#define NXM_MAX_LEN 384
 
 /* This is my guess at the length of a "typical" nx_match, for use in
  * predicting space requirements. */