X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=lib%2Fdpif.c;h=68af298ffaf9c89df3cf4796e673088e6cd36ae5;hb=7a97619ae4484604c15b846ce7268094e048729a;hp=7cf5fba4b3ce82b5eab102253bf9a6ac68bd8563;hpb=112bc5f46f04c46e1d4fbfaa93f76ea39b39b66e;p=sliver-openvswitch.git

diff --git a/lib/dpif.c b/lib/dpif.c
index 7cf5fba4b..68af298ff 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.
@@ -58,10 +58,11 @@ COVERAGE_DEFINE(dpif_execute);
 COVERAGE_DEFINE(dpif_purge);
 
 static const struct dpif_class *base_dpif_classes[] = {
-#ifdef HAVE_NETLINK
+#ifdef LINUX_DATAPATH
     &dpif_linux_class,
 #endif
     &dpif_netdev_class,
+    &dpif_planetlab_class,
 };
 
 struct registered_dpif_class {
@@ -410,19 +411,27 @@ dpif_get_dp_stats(const struct dpif *dpif, struct dpif_dp_stats *stats)
     return error;
 }
 
-/* Attempts to add 'netdev' as a port on 'dpif'.  If successful, returns 0 and
- * sets '*port_nop' to the new port's port number (if 'port_nop' is non-null).
- * On failure, returns a positive errno value and sets '*port_nop' to
- * UINT16_MAX (if 'port_nop' is non-null). */
+/* Attempts to add 'netdev' as a port on 'dpif'.  If 'port_nop' is
+ * non-null and its value is not UINT16_MAX, then attempts to use the
+ * value as the port number.
+ *
+ * If successful, returns 0 and sets '*port_nop' to the new port's port
+ * number (if 'port_nop' is non-null).  On failure, returns a positive
+ * errno value and sets '*port_nop' to UINT16_MAX (if 'port_nop' is
+ * non-null). */
 int
 dpif_port_add(struct dpif *dpif, struct netdev *netdev, uint16_t *port_nop)
 {
     const char *netdev_name = netdev_get_name(netdev);
-    uint16_t port_no;
+    uint16_t port_no = UINT16_MAX;
     int error;
 
     COVERAGE_INC(dpif_port_add);
 
+    if (port_nop) {
+        port_no = *port_nop;
+    }
+
     error = dpif->dpif_class->port_add(dpif, netdev, &port_no);
     if (!error) {
         VLOG_DBG_RL(&dpmsg_rl, "%s: added %s as port %"PRIu16,
@@ -541,6 +550,9 @@ 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
@@ -674,15 +686,16 @@ 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().
+ * 'used' is stored into stats->used. */
 void
 dpif_flow_stats_extract(const struct flow *flow, const struct ofpbuf *packet,
-                        struct dpif_flow_stats *stats)
+                        long long int used, struct dpif_flow_stats *stats)
 {
     stats->tcp_flags = packet_get_tcp_flags(packet, flow);
     stats->n_bytes = packet->size;
     stats->n_packets = 1;
-    stats->used = time_msec();
+    stats->used = used;
 }
 
 /* Appends a human-readable representation of 'stats' to 's'. */
@@ -965,7 +978,7 @@ dpif_execute__(struct dpif *dpif, const struct dpif_execute *execute)
  * the Ethernet frame specified in 'packet' taken from the flow specified in
  * the 'key_len' bytes of 'key'.  ('key' is mostly redundant with 'packet', but
  * it contains some metadata that cannot be recovered from 'packet', such as
- * tun_id and in_port.)
+ * tunnel and in_port.)
  *
  * Returns 0 if successful, otherwise a positive errno value. */
 int