X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=lib%2Fnx-match.h;h=faeacd6c859c0fbb717de7bb7031d7005e2039ad;hb=8b36f51e0fdeb468058e4552858af03851b4fad3;hp=a7441d0b39fcbd36321ec2351de5e54a748f7e60;hpb=ce523f65fc0f283269f6a697b152c089fb0a22ee;p=openvswitch

diff --git a/lib/nx-match.h b/lib/nx-match.h
index a7441d0b..faeacd6c 100644
--- 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.
@@ -41,6 +41,9 @@ int nx_put_match(struct ofpbuf *, const struct cls_rule *);
 char *nx_match_to_string(const uint8_t *, unsigned int match_len);
 int nx_match_from_string(const char *, struct ofpbuf *);
 
+uint64_t nxm_read_field_bits(ovs_be32 header, ovs_be16 ofs_nbits,
+                             const struct flow *);
+
 void nxm_parse_reg_move(struct nx_action_reg_move *, const char *);
 void nxm_parse_reg_load(struct nx_action_reg_load *, const char *);
 
@@ -87,8 +90,8 @@ nxm_decode_n_bits(ovs_be16 ofs_nbits)
     return (ntohs(ofs_nbits) & 0x3f) + 1;
 }
 
-/* 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
  *                   ------  -----  ----  -----
@@ -98,9 +101,13 @@ 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
@@ -109,13 +116,14 @@ 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. */