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openvswitch/lib/dpif-linux.h
Ben Pfaff 9ea0bccc83 datapath-protocol: Use Linux kernel types directly.
We want datapath-protocol.h to be acceptable as a Linux kernel header, so
it must use Linux kernel types and must not have references to Open vSwitch
symbols or header files.  This commit primarily makes that change to
datapath-protocol.h.

At the same time, at least for now we also want datapath-protocol.h to be
usable on non-Linux platforms, so we need some kind of compatiblity.  Thus,
this commit also introduces a <linux/types.h> header file that defines the
necessary Linux kernel types on non-Linux platforms.

In turn, this requires openvswitch/types.h to use the Linux types directly
for ovs_be<N>; otherwise, sparse complains because now __be<N> and
ovs_be<N> are incompatible from its perspective, so this commit makes that
change too.

I don't have a non-Linux kernel platform readily available, so I only
tested the non-Linux part of the linux/types.h substitute by forcing that
case to be triggered with #if 0.  It worked, except for errors in actual
Linux kernel headers included explicitly from OVS source files, so I think
it's likely to work in practice.

Bug #7559.
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
2011-10-12 16:27:09 -07:00

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C

/*
* Copyright (c) 2010, 2011 Nicira Networks.
*
* 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.
*/
#ifndef DPIF_LINUX_H
#define DPIF_LINUX_H 1
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include "openvswitch/datapath-protocol.h"
struct ofpbuf;
struct dpif_linux_vport {
/* Generic Netlink header. */
uint8_t cmd;
/* ovs_vport header. */
int dp_ifindex;
uint32_t port_no; /* UINT32_MAX if unknown. */
enum ovs_vport_type type;
/* Attributes.
*
* The 'stats' member points to 64-bit data that might only be aligned on
* 32-bit boundaries, so use get_unaligned_u64() to access its values.
*/
const char *name; /* OVS_VPORT_ATTR_NAME. */
const uint32_t *upcall_pid; /* OVS_VPORT_ATTR_UPCALL_PID. */
const struct ovs_vport_stats *stats; /* OVS_VPORT_ATTR_STATS. */
const uint8_t *address; /* OVS_VPORT_ATTR_ADDRESS. */
const struct nlattr *options; /* OVS_VPORT_ATTR_OPTIONS. */
size_t options_len;
};
void dpif_linux_vport_init(struct dpif_linux_vport *);
int dpif_linux_vport_transact(const struct dpif_linux_vport *request,
struct dpif_linux_vport *reply,
struct ofpbuf **bufp);
int dpif_linux_vport_get(const char *name, struct dpif_linux_vport *reply,
struct ofpbuf **bufp);
bool dpif_linux_is_internal_device(const char *name);
int dpif_linux_vport_send(int dp_ifindex, uint32_t port_no,
const void *data, size_t size);
#endif /* dpif-linux.h */