X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fopenvswitch%2Fdatapath-protocol.h;h=e7b5e5e87a594600538fcaa83ec53aa3c99e21ed;hb=de6a71659a2a7d36610110962307feb4af9c4cdc;hp=bbc29f6d0e55753e560894a937c8952f211ef1c2;hpb=a26ef51703333b9ab337ba13f397c28c062422fd;p=sliver-openvswitch.git

diff --git a/include/openvswitch/datapath-protocol.h b/include/openvswitch/datapath-protocol.h
index bbc29f6d0..e7b5e5e87 100644
--- a/include/openvswitch/datapath-protocol.h
+++ b/include/openvswitch/datapath-protocol.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009 Nicira Networks.
+ * Copyright (c) 2009, 2010 Nicira Networks.
  *
  * This file is offered under your choice of two licenses: Apache 2.0 or GNU
  * GPL 2.0 or later.  The permission statements for each of these licenses is
@@ -37,7 +37,7 @@
  * ----------------------------------------------------------------------
  */
 
-/* Protocol between secchan and datapath. */
+/* Protocol between userspace and kernel datapath. */
 
 #ifndef OPENVSWITCH_DATAPATH_PROTOCOL_H
 #define OPENVSWITCH_DATAPATH_PROTOCOL_H 1
@@ -70,14 +70,15 @@
 #define ODP_PORT_GROUP_GET      _IOWR('O', 12, struct odp_port_group)
 
 #define ODP_FLOW_GET            _IOWR('O', 13, struct odp_flow)
-#define ODP_FLOW_GET_MULTIPLE   _IOWR('O', 14, struct odp_flowvec)
+#define ODP_FLOW_PUT            _IOWR('O', 14, struct odp_flow)
 #define ODP_FLOW_LIST           _IOWR('O', 15, struct odp_flowvec)
-
 #define ODP_FLOW_FLUSH          _IO('O', 16)
-#define ODP_FLOW_PUT            _IOWR('O', 17, struct odp_flow)
-#define ODP_FLOW_DEL            _IOWR('O', 18, struct odp_flow)
+#define ODP_FLOW_DEL            _IOWR('O', 17, struct odp_flow)
+
+#define ODP_EXECUTE             _IOR('O', 18, struct odp_execute)
 
-#define ODP_EXECUTE             _IOR('O', 19, struct odp_execute)
+#define ODP_SET_SFLOW_PROBABILITY _IOR('O', 19, int)
+#define ODP_GET_SFLOW_PROBABILITY _IOW('O', 20, int)
 
 struct odp_stats {
     /* Flows. */
@@ -100,27 +101,64 @@ struct odp_stats {
     /* Queues. */
     __u16 max_miss_queue;       /* Max length of ODPL_MISS queue. */
     __u16 max_action_queue;     /* Max length of ODPL_ACTION queue. */
+    __u16 max_sflow_queue;      /* Max length of ODPL_SFLOW queue. */
 };
 
 /* Logical ports. */
 #define ODPP_LOCAL      ((__u16)0)
 #define ODPP_NONE       ((__u16)-1)
+#define ODPP_NORMAL     ((__u16)-2)
 
 /* Listening channels. */
 #define _ODPL_MISS_NR   0       /* Packet missed in flow table. */
 #define ODPL_MISS       (1 << _ODPL_MISS_NR)
 #define _ODPL_ACTION_NR 1       /* Packet output to ODPP_CONTROLLER. */
 #define ODPL_ACTION     (1 << _ODPL_ACTION_NR)
-#define ODPL_ALL        (ODPL_MISS | ODPL_ACTION)
-
-/* Format of messages read from datapath fd. */
+#define _ODPL_SFLOW_NR  2       /* sFlow samples. */
+#define ODPL_SFLOW      (1 << _ODPL_SFLOW_NR)
+#define ODPL_ALL        (ODPL_MISS | ODPL_ACTION | ODPL_SFLOW)
+
+/**
+ * struct odp_msg - format of messages read from datapath fd.
+ * @type: One of the %_ODPL_* constants.
+ * @length: Total length of message, including this header.
+ * @port: Port that received the packet embedded in this message.
+ * @reserved: Not currently used.  Should be set to 0.
+ * @arg: Argument value whose meaning depends on @type.
+ *
+ * For @type == %_ODPL_MISS_NR, the header is followed by packet data.  The
+ * @arg member is unused and set to 0.
+ *
+ * For @type == %_ODPL_ACTION_NR, the header is followed by packet data.  The
+ * @arg member is copied from the &struct odp_action_controller that caused
+ * the &struct odp_msg to be composed.
+ *
+ * For @type == %_ODPL_SFLOW_NR, the header is followed by &struct
+ * odp_sflow_sample_header, then by an array of &union odp_action (the number
+ * of which is specified in &struct odp_sflow_sample_header), then by packet
+ * data.
+ */
 struct odp_msg {
-    __u32 type;                 /* _ODPL_MISS_NR or _ODPL_ACTION_NR. */
-    __u32 length;               /* Message length, including header. */
-    __u16 port;                 /* Port on which frame was received. */
+    __u32 type;
+    __u32 length;
+    __u16 port;
     __u16 reserved;
-    __u32 arg;                  /* Argument value specified in action. */
-    /* Followed by packet data. */
+    __u32 arg;
+};
+
+/**
+ * struct odp_sflow_sample_header - header added to sFlow sampled packet.
+ * @sample_pool: Number of packets that were candidates for sFlow sampling,
+ * regardless of whether they were actually chosen and sent down to userspace.
+ * @n_actions: Number of "union odp_action"s immediately following this header.
+ *
+ * This header follows &struct odp_msg when that structure's @type is
+ * %_ODPL_SFLOW_NR, and it is itself followed by an array of &union odp_action
+ * (the number of which is specified in @n_actions) and then by packet data.
+ */
+struct odp_sflow_sample_header {
+    __u32 sample_pool;
+    __u32 n_actions;
 };
 
 #define ODP_PORT_INTERNAL (1 << 0) /* This port is simulated. */
@@ -149,7 +187,7 @@ struct odp_flow_stats {
     __u32 used_nsec;
     __u8 tcp_flags;
     __u8 ip_tos;
-    __u16 reserved;
+    __u16 error;                /* Used by ODP_FLOW_GET. */
 };
 
 struct odp_flow_key {
@@ -167,11 +205,15 @@ struct odp_flow_key {
     __u8   reserved;             /* Pad to 64 bits. */
 };
 
+/* Flags for ODP_FLOW. */
+#define ODPFF_ZERO_TCP_FLAGS (1 << 0) /* Zero the TCP flags. */
+
 struct odp_flow {
     struct odp_flow_stats stats;
     struct odp_flow_key key;
     union odp_action *actions;
     __u32 n_actions;
+    __u32 flags;
 };
 
 /* Flags for ODP_FLOW_PUT. */