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/*
* Copyright (c) 2015, AVAGO Tech. All rights reserved. Author: Kashyap Desai,
* Copyright (c) 2014, LSI Corp. All rights reserved. Author: Kashyap Desai,
* Sibananda Sahu Support: freebsdraid@avagotech.com
*
* 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. 3. Neither the name of the
* <ORGANIZATION> nor the names of its contributors may be used to endorse or
* promote products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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.
*
* The views and conclusions contained in the software and documentation are
* those of the authors and should not be interpreted as representing
* official policies,either expressed or implied, of the FreeBSD Project.
*
* Send feedback to: <megaraidfbsd@avagotech.com> Mail to: AVAGO TECHNOLOGIES, 1621
* Barber Lane, Milpitas, CA 95035 ATTN: MegaRaid FreeBSD
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#if (__FreeBSD_version > 900000)
#include <sys/capability.h>
#endif
#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/mrsas/mrsas.h>
#include <dev/mrsas/mrsas_ioctl.h>
/* There are multiple ioctl number ranges that need to be handled */
#define MRSAS_LINUX_IOCTL_MIN 0x4d00
#define MRSAS_LINUX_IOCTL_MAX 0x4d01
static linux_ioctl_function_t mrsas_linux_ioctl;
static struct linux_ioctl_handler mrsas_linux_handler = {mrsas_linux_ioctl,
MRSAS_LINUX_IOCTL_MIN,
MRSAS_LINUX_IOCTL_MAX};
SYSINIT(mrsas_register, SI_SUB_KLD, SI_ORDER_MIDDLE,
linux_ioctl_register_handler, &mrsas_linux_handler);
SYSUNINIT(mrsas_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE,
linux_ioctl_unregister_handler, &mrsas_linux_handler);
static struct linux_device_handler mrsas_device_handler =
{"mrsas", "megaraid_sas", "mrsas0", "megaraid_sas_ioctl_node", -1, 0, 1};
SYSINIT(mrsas_register2, SI_SUB_KLD, SI_ORDER_MIDDLE,
linux_device_register_handler, &mrsas_device_handler);
SYSUNINIT(mrsas_unregister2, SI_SUB_KLD, SI_ORDER_MIDDLE,
linux_device_unregister_handler, &mrsas_device_handler);
static int
mrsas_linux_modevent(module_t mod __unused, int cmd __unused, void *data __unused)
{
return (0);
}
/*
* mrsas_linux_ioctl: linux emulator IOCtl commands entry point.
*
* This function is the entry point for IOCtls from linux binaries.
* It calls the mrsas_ioctl function for processing
* depending on the IOCTL command received.
*/
static int
mrsas_linux_ioctl(struct thread *p, struct linux_ioctl_args *args)
{
#if (__FreeBSD_version >= 1000000)
cap_rights_t rights;
#endif
struct file *fp;
int error;
u_long cmd = args->cmd;
if (cmd != MRSAS_LINUX_CMD32) {
error = ENOTSUP;
goto END;
}
#if (__FreeBSD_version >= 1000000)
error = fget(p, args->fd, cap_rights_init(&rights, CAP_IOCTL), &fp);
#elif (__FreeBSD_version <= 900000)
error = fget(p, args->fd, &fp);
#else /* For FreeBSD version greater than
* 9.0.0 but less than 10.0.0 */
error = fget(p, args->fd, CAP_IOCTL, &fp);
#endif
if (error != 0)
goto END;
error = fo_ioctl(fp, cmd, (caddr_t)args->arg, p->td_ucred, p);
fdrop(fp, p);
END:
return (error);
}
DEV_MODULE(mrsas_linux, mrsas_linux_modevent, NULL);
MODULE_DEPEND(mrsas, linux, 1, 1, 1);
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