pcib_support.c revision 279470 
1/*
2 * Copyright (c) 2014 Sandvine Inc.  All rights reserved.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: stable/10/sys/dev/pci/pcib_support.c 279470 2015-03-01 04:22:06Z rstone $");
29
30/*
31 * Support functions for the PCI:PCI bridge driver.  This has to be in a
32 * separate file because kernel configurations end up referencing the functions
33 * here even when pci support is compiled out of the kernel.
34 */
35
36#include <sys/param.h>
37#include <sys/bus.h>
38#include <sys/kernel.h>
39#include <sys/malloc.h>
40#include <sys/module.h>
41#include <sys/rman.h>
42#include <sys/sysctl.h>
43#include <sys/systm.h>
44
45#include <dev/pci/pcivar.h>
46#include <dev/pci/pcireg.h>
47#include <dev/pci/pcib_private.h>
48
49#include "pcib_if.h"
50
51int
52pcib_maxfuncs(device_t dev)
53{
54	return (PCI_FUNCMAX);
55}
56
57uint16_t
58pcib_get_rid(device_t pcib, device_t dev)
59{
60	uint8_t bus, slot, func;
61
62	bus = pci_get_bus(dev);
63	slot = pci_get_slot(dev);
64	func = pci_get_function(dev);
65
66	return (PCI_RID(bus, slot, func));
67}
68
69