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authorNeale Ranns <neale.ranns@cisco.com>2018-07-04 10:24:24 -0700
committerDave Barach <openvpp@barachs.net>2018-07-07 16:06:34 +0000
commit17ff3c1fa5687255a118c53223fa2cd49132d929 (patch)
tree874a3fbf5bed5408f9f9c84546a3b95df62ead79 /src/vnet/devices/pipe/pipe.api
parent65784c1602c7c8171effd00384f65f546d93a13b (diff)
Pipes
A pipe resembles a unix pipe. Each end of the pipe is a full VPP interface. pipes can be used for e.g. packet recirculation, inter-BD, etc. Change-Id: I185bb9fb43dd233ff45da63ac1b85ae2e1ceca16 Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
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+/*
+ * Copyright (c) 2018 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/** \file
+
+ This file defines vpe control-plane API messages for
+ the Linux kernel PIPE device driver
+*/
+
+option version = "1.0.0";
+
+/** \brief Initialize a new pipe interface with the given paramters
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param is_specified - if non-0, a specific user_instance is being requested
+ @param user_instance - requested instance, ~0 => dynamically allocate
+*/
+define pipe_create
+{
+ u32 client_index;
+ u32 context;
+ u8 is_specified;
+ u32 user_instance;
+};
+
+/** \brief Reply for pipe create reply
+ @param context - returned sender context, to match reply w/ request
+ @param retval - return code
+ @param parent_sw_if_index - software index allocated for the new pipe parent interface
+ Use the parent interface for link up/down and to delete
+ @param pipe_sw_if_index - the two SW indicies that form the ends of the pipe.
+*/
+define pipe_create_reply
+{
+ u32 context;
+ i32 retval;
+ u32 parent_sw_if_index;
+ u32 pipe_sw_if_index[2];
+};
+
+/** \brief Delete pipe interface
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param parnet_sw_if_index - interface index of existing pipe interface
+*/
+autoreply define pipe_delete
+{
+ u32 client_index;
+ u32 context;
+ u32 parent_sw_if_index;
+};
+
+/** \brief Dump pipe interfaces request */
+define pipe_dump
+{
+ u32 client_index;
+ u32 context;
+};
+
+/** \brief Reply for pipe dump request
+ @param sw_if_index - software index of pipe interface
+ @param parent_sw_if_index - software index allocated for the pipe parent interface
+ @param pipe_sw_if_index - the two SW indicies that form the ends of the pipe.
+ @param instance - instance allocated
+*/
+define pipe_details
+{
+ u32 context;
+ u32 parent_sw_if_index;
+ u32 pipe_sw_if_index[2];
+ u32 instance;
+};
+
+/*
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */