X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=lib%2Fdpif.c;h=ce7c5801f780ad272da02c1ad20cb22a54c411fb;hb=945cad7fb1f37dcf68cab62ccf72970bcd12fa50;hp=a1bd59b0acb1ab5835b4a762cc51ef78c5f19078;hpb=90a7c55e56bca82a0b7a05ed068d054b5c8a7584;p=openvswitch

diff --git a/lib/dpif.c b/lib/dpif.c
index a1bd59b0..ce7c5801 100644
--- a/lib/dpif.c
+++ b/lib/dpif.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira Networks.
+ * Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -541,6 +541,9 @@ dpif_get_max_ports(const struct dpif *dpif)
  * as the OVS_USERSPACE_ATTR_PID attribute's value, for use in flows whose
  * packets arrived on port 'port_no'.
  *
+ * A 'port_no' of UINT16_MAX is a special case: it returns a reserved PID, not
+ * allocated to any port, that the client may use for special purposes.
+ *
  * The return value is only meaningful when DPIF_UC_ACTION has been enabled in
  * the 'dpif''s listen mask.  It is allowed to change when DPIF_UC_ACTION is
  * disabled and then re-enabled, so a client that does that must be prepared to
@@ -674,8 +677,7 @@ dpif_port_poll_wait(const struct dpif *dpif)
 }
 
 /* Extracts the flow stats for a packet.  The 'flow' and 'packet'
- * arguments must have been initialized through a call to flow_extract().
- */
+ * arguments must have been initialized through a call to flow_extract(). */
 void
 dpif_flow_stats_extract(const struct flow *flow, const struct ofpbuf *packet,
                         struct dpif_flow_stats *stats)