freebsd-dev/sys/dev/mfi/mfi_linux.c

106 lines
3.4 KiB
C
Raw Normal View History

/*-
* Copyright (c) 2006 IronPort Systems
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/capability.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/file.h>
#include <sys/proc.h>
#include <machine/bus.h>
#if defined(__amd64__) /* Assume amd64 wants 32 bit Linux */
#include <machine/../linux32/linux.h>
#include <machine/../linux32/linux32_proto.h>
#else
#include <machine/../linux/linux.h>
#include <machine/../linux/linux_proto.h>
#endif
#include <compat/linux/linux_ioctl.h>
#include <compat/linux/linux_util.h>
#include <dev/mfi/mfireg.h>
#include <dev/mfi/mfi_ioctl.h>
/* There are multiple ioctl number ranges that need to be handled */
#define MFI_LINUX_IOCTL_MIN 0x4d00
#define MFI_LINUX_IOCTL_MAX 0x4d04
static linux_ioctl_function_t mfi_linux_ioctl;
static struct linux_ioctl_handler mfi_linux_handler = {mfi_linux_ioctl,
MFI_LINUX_IOCTL_MIN,
MFI_LINUX_IOCTL_MAX};
SYSINIT (mfi_register, SI_SUB_KLD, SI_ORDER_MIDDLE,
linux_ioctl_register_handler, &mfi_linux_handler);
SYSUNINIT(mfi_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE,
linux_ioctl_unregister_handler, &mfi_linux_handler);
static struct linux_device_handler mfi_device_handler =
{ "mfi", "megaraid_sas", "mfi0", "megaraid_sas_ioctl_node", -1, 0, 1};
SYSINIT (mfi_register2, SI_SUB_KLD, SI_ORDER_MIDDLE,
linux_device_register_handler, &mfi_device_handler);
SYSUNINIT(mfi_unregister2, SI_SUB_KLD, SI_ORDER_MIDDLE,
linux_device_unregister_handler, &mfi_device_handler);
static int
mfi_linux_modevent(module_t mod, int cmd, void *data)
{
return (0);
}
DEV_MODULE(mfi_linux, mfi_linux_modevent, NULL);
MODULE_DEPEND(mfi, linux, 1, 1, 1);
static int
mfi_linux_ioctl(struct thread *p, struct linux_ioctl_args *args)
{
struct file *fp;
int error;
u_long cmd = args->cmd;
switch (cmd) {
case MFI_LINUX_CMD:
cmd = MFI_LINUX_CMD_2;
break;
case MFI_LINUX_SET_AEN:
cmd = MFI_LINUX_SET_AEN_2;
break;
}
if ((error = fget(p, args->fd, CAP_IOCTL, &fp)) != 0)
return (error);
error = fo_ioctl(fp, cmd, (caddr_t)args->arg, p->td_ucred, p);
fdrop(fp, p);
return (error);
}