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