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: releng/8.1/sys/dev/mfi/mfi_linux.c 192450 2009-05-20 17:29:21Z imp $");
29
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/conf.h>
33 #include <sys/kernel.h>
34 #include <sys/module.h>
35 #include <sys/file.h>
36 #include <sys/proc.h>
37
38 #if defined(__amd64__) /* Assume amd64 wants 32 bit Linux */
39 #include <machine/../linux32/linux.h>
40 #include <machine/../linux32/linux32_proto.h>
41 #else
42 #include <machine/../linux/linux.h>
43 #include <machine/../linux/linux_proto.h>
44 #endif
45 #include <compat/linux/linux_ioctl.h>
46 #include <compat/linux/linux_util.h>
47
48 #include <dev/mfi/mfireg.h>
49 #include <dev/mfi/mfi_ioctl.h>
50
51 /* There are multiple ioctl number ranges that need to be handled */
52 #define MFI_LINUX_IOCTL_MIN 0x4d00
53 #define MFI_LINUX_IOCTL_MAX 0x4d04
54
55 static linux_ioctl_function_t mfi_linux_ioctl;
56 static struct linux_ioctl_handler mfi_linux_handler = {mfi_linux_ioctl,
57 MFI_LINUX_IOCTL_MIN,
58 MFI_LINUX_IOCTL_MAX};
59
60 SYSINIT (mfi_register, SI_SUB_KLD, SI_ORDER_MIDDLE,
61 linux_ioctl_register_handler, &mfi_linux_handler);
62 SYSUNINIT(mfi_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE,
63 linux_ioctl_unregister_handler, &mfi_linux_handler);
64
65 static struct linux_device_handler mfi_device_handler =
66 { "mfi", "megaraid_sas", "mfi0", "megaraid_sas_ioctl_node", -1, 0, 1};
67
68 SYSINIT (mfi_register2, SI_SUB_KLD, SI_ORDER_MIDDLE,
69 linux_device_register_handler, &mfi_device_handler);
70 SYSUNINIT(mfi_unregister2, SI_SUB_KLD, SI_ORDER_MIDDLE,
71 linux_device_unregister_handler, &mfi_device_handler);
72
73 static int
74 mfi_linux_modevent(module_t mod, int cmd, void *data)
75 {
76 return (0);
77 }
78
79 DEV_MODULE(mfi_linux, mfi_linux_modevent, NULL);
80 MODULE_DEPEND(mfi, linux, 1, 1, 1);
81
82 static int
83 mfi_linux_ioctl(struct thread *p, struct linux_ioctl_args *args)
84 {
85 struct file *fp;
86 int error;
87 u_long cmd = args->cmd;
88
89 switch (cmd) {
90 case MFI_LINUX_CMD:
91 cmd = MFI_LINUX_CMD_2;
92 break;
93 case MFI_LINUX_SET_AEN:
94 cmd = MFI_LINUX_SET_AEN_2;
95 break;
96 }
97
98 if ((error = fget(p, args->fd, &fp)) != 0)
99 return (error);
100 error = fo_ioctl(fp, cmd, (caddr_t)args->arg, p->td_ucred, p);
101 fdrop(fp, p);
102 return (error);
103 }
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