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

[sliver-openvswitch.git] / include / openflow / nicira-ext.h

diff --git a/include/openflow/nicira-ext.h b/include/openflow/nicira-ext.h
index 875052a..1dcd32b 100644 (file)
--- a/include/openflow/nicira-ext.h
+++ b/include/openflow/nicira-ext.h
@@ -978,7 +978,7 @@ struct nx_action_bundle {
     ovs_be16 type;              /* OFPAT_VENDOR. */
     ovs_be16 len;               /* Length including slaves. */
     ovs_be32 vendor;            /* NX_VENDOR_ID. */
-    ovs_be16 subtype;           /* NXAST_BUNDLE. */
+    ovs_be16 subtype;           /* NXAST_BUNDLE or NXAST_BUNDLE_LOAD. */
 
     /* Slave choice algorithm to apply to hash value. */
     ovs_be16 algorithm;         /* One of NX_BD_ALG_*. */
@@ -1614,6 +1614,49 @@ OFP_ASSERT(sizeof(struct nx_action_output_reg) == 24);
 #define NX_IP_FRAG_ANY   (1 << 0) /* Is this a fragment? */
 #define NX_IP_FRAG_LATER (1 << 1) /* Is this a fragment with nonzero offset? */
 
+/* The flow label in the IPv6 header.
+ *
+ * Prereqs: NXM_OF_ETH_TYPE must match 0x86dd exactly.
+ *
+ * Format: 20-bit IPv6 flow label in least-significant bits.
+ *
+ * Masking: Not maskable. */
+#define NXM_NX_IPV6_LABEL  NXM_HEADER  (0x0001, 27, 4)
+
+/* The ECN of the IP header.
+ *
+ * Prereqs: NXM_OF_ETH_TYPE must be either 0x0800 or 0x86dd.
+ *
+ * Format: ECN in the low-order 2 bits.
+ *
+ * Masking: Not maskable. */
+#define NXM_NX_IP_ECN      NXM_HEADER  (0x0001, 28, 1)
+
+/* The time-to-live/hop limit of the IP header.
+ *
+ * Prereqs: NXM_OF_ETH_TYPE must be either 0x0800 or 0x86dd.
+ *
+ * Format: 8-bit integer.
+ *
+ * Masking: Not maskable. */
+#define NXM_NX_IP_TTL      NXM_HEADER  (0x0001, 29, 1)
+
+/* Flow cookie.
+ *
+ * This may be used to gain the OpenFlow 1.1-like ability to restrict
+ * certain NXM-based Flow Mod and Flow Stats Request messages to flows
+ * with specific cookies.  See the "nx_flow_mod" and "nx_flow_stats_request"
+ * structure definitions for more details.  This match is otherwise not
+ * allowed.
+ *
+ * Prereqs: None.
+ *
+ * Format: 64-bit integer in network byte order.
+ *
+ * Masking: Arbitrary masks. */
+#define NXM_NX_COOKIE     NXM_HEADER  (0x0001, 30, 8)
+#define NXM_NX_COOKIE_W   NXM_HEADER_W(0x0001, 30, 8)
+
 /* ## --------------------- ## */
 /* ## Requests and replies. ## */
 /* ## --------------------- ## */
@@ -1632,7 +1675,14 @@ struct nxt_set_flow_format {
 };
 OFP_ASSERT(sizeof(struct nxt_set_flow_format) == 20);
 
-/* NXT_FLOW_MOD (analogous to OFPT_FLOW_MOD). */
+/* NXT_FLOW_MOD (analogous to OFPT_FLOW_MOD).
+ *
+ * It is possible to limit flow deletions and modifications to certain
+ * cookies by using the NXM_NX_COOKIE and NXM_NX_COOKIE_W matches.  For
+ * these commands, the "cookie" field is always ignored.  Flow additions
+ * make use of the "cookie" field and ignore any NXM_NX_COOKIE*
+ * definitions.
+ */
 struct nx_flow_mod {
     struct nicira_header nxh;
     ovs_be64 cookie;              /* Opaque controller-issued identifier. */
@@ -1681,7 +1731,11 @@ struct nx_flow_removed {
 OFP_ASSERT(sizeof(struct nx_flow_removed) == 56);
 
 /* Nicira vendor stats request of type NXST_FLOW (analogous to OFPST_FLOW
- * request). */
+ * request).
+ *
+ * It is possible to limit matches to certain cookies by using the
+ * NXM_NX_COOKIE and NXM_NX_COOKIE_W matches.
+ */
 struct nx_flow_stats_request {
     struct nicira_stats_msg nsm;
     ovs_be16 out_port;        /* Require matching entries to include this