1/*-
2 * Copyright (c) 2006 IronPort Systems
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("$FreeBSD$");
29
30#include <sys/param.h>
31#include <sys/systm.h>
32#include <sys/capability.h>
33#include <sys/conf.h>
34#include <sys/kernel.h>
35#include <sys/module.h>
36#include <sys/file.h>
37#include <sys/proc.h>
38#include <machine/bus.h>
39
40#if defined(__amd64__) /* Assume amd64 wants 32 bit Linux */
41#include <machine/../linux32/linux.h>
42#include <machine/../linux32/linux32_proto.h>
43#else
44#include <machine/../linux/linux.h>
45#include <machine/../linux/linux_proto.h>
46#endif
47#include <compat/linux/linux_ioctl.h>
48#include <compat/linux/linux_util.h>
49
50#include <dev/mfi/mfireg.h>
51#include <dev/mfi/mfi_ioctl.h>
52
53/* There are multiple ioctl number ranges that need to be handled */
54#define MFI_LINUX_IOCTL_MIN  0x4d00
55#define MFI_LINUX_IOCTL_MAX  0x4d04
56
57static linux_ioctl_function_t mfi_linux_ioctl;
58static struct linux_ioctl_handler mfi_linux_handler = {mfi_linux_ioctl,
59						       MFI_LINUX_IOCTL_MIN,
60						       MFI_LINUX_IOCTL_MAX};
61
62SYSINIT  (mfi_register,   SI_SUB_KLD, SI_ORDER_MIDDLE,
63	  linux_ioctl_register_handler, &mfi_linux_handler);
64SYSUNINIT(mfi_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE,
65	  linux_ioctl_unregister_handler, &mfi_linux_handler);
66
67static struct linux_device_handler mfi_device_handler =
68	{ "mfi", "megaraid_sas", "mfi0", "megaraid_sas_ioctl_node", -1, 0, 1};
69
70SYSINIT  (mfi_register2,   SI_SUB_KLD, SI_ORDER_MIDDLE,
71	  linux_device_register_handler, &mfi_device_handler);
72SYSUNINIT(mfi_unregister2, SI_SUB_KLD, SI_ORDER_MIDDLE,
73	  linux_device_unregister_handler, &mfi_device_handler);
74
75static int
76mfi_linux_modevent(module_t mod, int cmd, void *data)
77{
78	return (0);
79}
80
81DEV_MODULE(mfi_linux, mfi_linux_modevent, NULL);
82MODULE_DEPEND(mfi, linux, 1, 1, 1);
83
84static int
85mfi_linux_ioctl(struct thread *p, struct linux_ioctl_args *args)
86{
87	cap_rights_t rights;
88	struct file *fp;
89	int error;
90	u_long cmd = args->cmd;
91
92	switch (cmd) {
93	case MFI_LINUX_CMD:
94		cmd = MFI_LINUX_CMD_2;
95		break;
96	case MFI_LINUX_SET_AEN:
97		cmd = MFI_LINUX_SET_AEN_2;
98		break;
99	}
100
101	error = fget(p, args->fd, cap_rights_init(&rights, CAP_IOCTL), &fp);
102	if (error != 0)
103		return (error);
104	error = fo_ioctl(fp, cmd, (caddr_t)args->arg, p->td_ucred, p);
105	fdrop(fp, p);
106	return (error);
107}
108