1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SYS_DLD_IOC_H 27 #define _SYS_DLD_IOC_H 28 29 #include <sys/types.h> 30 #include <sys/cred.h> 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 /* 37 * The name of the dld control device. All GLDv3 control ioctls are 38 * performed on this device. 39 */ 40 #define DLD_CONTROL_DEV "/dev/dld" 41 42 /* 43 * GLDv3 ioctl values are structured as follows: 44 * 45 * | 16-bits | 16-bits | 46 * +----------------+----------------+ 47 * | module-id | command-id | 48 * +----------------+----------------+ 49 */ 50 #define DLD_IOC_CMD(modid, cmdid) (((uint_t)(modid) << 16) | (cmdid)) 51 #define DLD_IOC_MODID(cmd) (((cmd) & 0xffff0000) >> 16) 52 /* 53 * GLDv3 module ids to be passed in as the first argument to 54 * dld_ioc_register() and dld_ioc_unregister(). 55 */ 56 #define DLD_IOC 0x0D1D 57 #define AGGR_IOC 0x0A66 58 #define VNIC_IOC 0x0171 59 60 /* GLDv3 modules use these macros to generate unique ioctl commands */ 61 #define DLDIOC(cmdid) DLD_IOC_CMD(DLD_IOC, (cmdid)) 62 #define AGGRIOC(cmdid) DLD_IOC_CMD(AGGR_IOC, (cmdid)) 63 #define VNICIOC(cmdid) DLD_IOC_CMD(VNIC_IOC, (cmdid)) 64 65 #ifdef _KERNEL 66 67 /* 68 * GLDv3 modules register the ioctls they're interested in by passing 69 * in an array of dld_ioc_info_t to dld_ioc_register(). Modules 70 * should call dld_ioc_register() either in _init() or attach(). The 71 * dld module assumes that ddi_hold_devi_by_instance(<module>, 0, 0) 72 * will cause the module to load and call dld_ioc_register(). 73 * 74 * The di_cmd field is an ioctl command generated using one of the 75 * macros above. The di_argsize value is used by dld to copyin or 76 * copyout the correct amount of data depending on whether the 77 * DLDCOPYIN or DLDCOPYOUT flags are set so that every di_func() 78 * callback function does not need to copyin/out its own data. 79 */ 80 typedef int (dld_ioc_func_t)(void *, intptr_t, int, cred_t *); 81 typedef struct dld_ioc_info { 82 uint_t di_cmd; 83 uint_t di_flags; 84 size_t di_argsize; 85 dld_ioc_func_t *di_func; 86 } dld_ioc_info_t; 87 88 /* Values for di_flags */ 89 #define DLDCOPYIN 0x00000001 /* copyin di_argsize amount of data */ 90 #define DLDCOPYOUT 0x00000002 /* copyout di_argsize amount of data */ 91 #define DLDDLCONFIG 0x00000004 /* ioctl requires PRIV_SYS_DL_CONFIG */ 92 #define DLDCOPYINOUT (DLDCOPYIN | DLDCOPYOUT) 93 94 #define DLDIOCCNT(l) (sizeof (l) / sizeof (dld_ioc_info_t)) 95 int dld_ioc_register(uint16_t, dld_ioc_info_t *, uint_t); 96 void dld_ioc_unregister(uint16_t); 97 98 #endif /* _KERNEL */ 99 100 #ifdef __cplusplus 101 } 102 #endif 103 104 #endif /* _SYS_DLD_IOC_H */ 105