flow: add miniflow_pad_from_64

[cascardo/ovs.git] / ovn / ovn-sb.xml

diff --git a/ovn/ovn-sb.xml b/ovn/ovn-sb.xml
index 87b944b..1ea35d5 100644 (file)
--- a/ovn/ovn-sb.xml
+++ b/ovn/ovn-sb.xml
@@ -722,8 +722,11 @@
       </p>
 
       <ul>
+        <li><code>eth.bcast</code> expands to <code>eth.dst == ff:ff:ff:ff:ff:ff</code></li>
+        <li><code>eth.mcast</code> expands to <code>eth.dst[40]</code></li>
         <li><code>vlan.present</code> expands to <code>vlan.tci[12]</code></li>
         <li><code>ip4</code> expands to <code>eth.type == 0x800</code></li>
+        <li><code>ip4.mcast</code> expands to <code>ip4.dst[28..31] == 0xe</code></li>
         <li><code>ip6</code> expands to <code>eth.type == 0x86dd</code></li>
         <li><code>ip</code> expands to <code>ip4 || ip6</code></li>
         <li><code>icmp4</code> expands to <code>ip4 &amp;&amp; ip.proto == 1</code></li>
@@ -779,7 +782,11 @@
           <p>
             Output to the input port is implicitly dropped, that is,
             <code>output</code> becomes a no-op if <code>outport</code> ==
-            <code>inport</code>.
+            <code>inport</code>.  Occasionally it may be useful to override
+            this behavior, e.g. to send an ARP reply to an ARP request; to do
+            so, use <code>inport = "";</code> to set the logical input port to
+            an empty string (which should not be used as the name of any
+            logical port).
           </p>
         </dd>
 
@@ -863,7 +870,8 @@
             Decrements the IPv4 or IPv6 TTL.  If this would make the TTL zero
             or negative, then processing of the packet halts; no further
             actions are processed.  (To properly handle such cases, a
-            higher-priority flow should match on <code>ip.ttl &lt; 2</code>.)
+            higher-priority flow should match on
+            <code>ip.ttl == {0, 1};</code>.)
           </p>
 
           <p><b>Prerequisite:</b> <code>ip</code></p>
@@ -1075,12 +1083,28 @@ tcp.flags = RST;
       constructed for each supported encapsulation.
     </column>
 
-    <column name="external_ids" key="logical-switch" type='{"type": "uuid"}'>
-      Each row in <ref table="Datapath_Binding"/> is associated with some
-      logical datapath.  <code>ovn-northd</code> uses this key to store the
-      UUID of the logical datapath <ref table="Logical_Switch"
-      db="OVN_Northbound"/> row in the <ref db="OVN_Northbound"/> database.
-    </column>
+    <group title="OVN_Northbound Relationship">
+      <p>
+        Each row in <ref table="Datapath_Binding"/> is associated with some
+        logical datapath.  <code>ovn-northd</code> uses these keys to track the
+        association of a logical datapath with concepts in the <ref
+        db="OVN_Northbound"/> database.
+      </p>
+
+      <column name="external_ids" key="logical-switch" type='{"type": "uuid"}'>
+        For a logical datapath that represents a logical switch,
+        <code>ovn-northd</code> stores in this key the UUID of the
+        corresponding <ref table="Logical_Switch" db="OVN_Northbound"/> row in
+        the <ref db="OVN_Northbound"/> database.
+      </column>
+
+      <column name="external_ids" key="logical-router" type='{"type": "uuid"}'>
+        For a logical datapath that represents a logical router,
+        <code>ovn-northd</code> stores in this key the UUID of the
+        corresponding <ref table="Logical_Router" db="OVN_Northbound"/> row in
+        the <ref db="OVN_Northbound"/> database.
+      </column>
+    </group>
 
     <group title="Common Columns">
       The overall purpose of these columns is described under <code>Common
@@ -1276,6 +1300,23 @@ tcp.flags = RST;
       </column>
     </group>
 
+    <group title="VMI (or VIF) Options">
+      <p>
+        These options apply to logical ports with <ref column="type"/> having
+        (empty string)
+      </p>
+
+      <column name="options" key="policing_rate">
+        If set, indicates the maximum rate for data sent from this interface,
+        in kbps. Data exceeding this rate is dropped.
+      </column>
+
+      <column name="options" key="policing_burst">
+        If set, indicates the maximum burst size for data sent from this
+        interface, in kb.
+      </column>
+    </group>
+
     <group title="Nested Containers">
       <p>
         These columns support containers nested within a VM.  Specifically,