Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/cam/cam_compat.h
Version:
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1 /*- 2 * CAM ioctl compatibility shims 3 * 4 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 5 * 6 * Copyright (c) 2013 Scott Long 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions, and the following disclaimer, 14 * without modification, immediately at the beginning of the file. 15 * 2. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 22 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * $FreeBSD: releng/12.0/sys/cam/cam_compat.h 326265 2017-11-27 15:12:43Z pfg $ 31 */ 32 33 #ifndef _CAM_CAM_COMPAT_H 34 #define _CAM_CAM_COMPAT_H 35 36 /* No user-serviceable parts in here. */ 37 #ifdef _KERNEL 38 39 int cam_compat_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 40 struct thread *td, int(*cbfnp)(struct cdev *, u_long, caddr_t, int, 41 struct thread *)); 42 43 44 /* Version 0x16 compatibility */ 45 #define CAM_VERSION_0x16 0x16 46 47 /* The size of the union ccb didn't change when going to 0x17 */ 48 #define CAMIOCOMMAND_0x16 _IOC(IOC_INOUT, CAM_VERSION_0x16, 2, CAM_0X17_LEN) 49 #define CAMGETPASSTHRU_0x16 _IOC(IOC_INOUT, CAM_VERSION_0x16, 3, CAM_0X17_LEN) 50 51 #define CAM_SCATTER_VALID_0x16 0x00000010 52 #define CAM_SG_LIST_PHYS_0x16 0x00040000 53 #define CAM_DATA_PHYS_0x16 0x00200000 54 55 /* Version 0x17 compatibility */ 56 #define CAM_VERSION_0x17 0x17 57 58 struct ccb_hdr_0x17 { 59 cam_pinfo pinfo; /* Info for priority scheduling */ 60 camq_entry xpt_links; /* For chaining in the XPT layer */ 61 camq_entry sim_links; /* For chaining in the SIM layer */ 62 camq_entry periph_links; /* For chaining in the type driver */ 63 u_int32_t retry_count; 64 void (*cbfcnp)(struct cam_periph *, union ccb *); 65 xpt_opcode func_code; /* XPT function code */ 66 u_int32_t status; /* Status returned by CAM subsystem */ 67 struct cam_path *path; /* Compiled path for this ccb */ 68 path_id_t path_id; /* Path ID for the request */ 69 target_id_t target_id; /* Target device ID */ 70 u_int target_lun; /* Target LUN number */ 71 u_int32_t flags; /* ccb_flags */ 72 ccb_ppriv_area periph_priv; 73 ccb_spriv_area sim_priv; 74 u_int32_t timeout; /* Hard timeout value in seconds */ 75 struct callout_handle timeout_ch; 76 }; 77 78 struct ccb_pathinq_0x17 { 79 struct ccb_hdr_0x17 ccb_h; 80 u_int8_t version_num; /* Version number for the SIM/HBA */ 81 u_int8_t hba_inquiry; /* Mimic of INQ byte 7 for the HBA */ 82 u_int8_t target_sprt; /* Flags for target mode support */ 83 u_int8_t hba_misc; /* Misc HBA features */ 84 u_int16_t hba_eng_cnt; /* HBA engine count */ 85 /* Vendor Unique capabilities */ 86 u_int8_t vuhba_flags[VUHBALEN]; 87 u_int32_t max_target; /* Maximum supported Target */ 88 u_int32_t max_lun; /* Maximum supported Lun */ 89 u_int32_t async_flags; /* Installed Async handlers */ 90 path_id_t hpath_id; /* Highest Path ID in the subsystem */ 91 target_id_t initiator_id; /* ID of the HBA on the SCSI bus */ 92 char sim_vid[SIM_IDLEN]; /* Vendor ID of the SIM */ 93 char hba_vid[HBA_IDLEN]; /* Vendor ID of the HBA */ 94 char dev_name[DEV_IDLEN];/* Device name for SIM */ 95 u_int32_t unit_number; /* Unit number for SIM */ 96 u_int32_t bus_id; /* Bus ID for SIM */ 97 u_int32_t base_transfer_speed;/* Base bus speed in KB/sec */ 98 cam_proto protocol; 99 u_int protocol_version; 100 cam_xport transport; 101 u_int transport_version; 102 union { 103 struct ccb_pathinq_settings_spi spi; 104 struct ccb_pathinq_settings_fc fc; 105 struct ccb_pathinq_settings_sas sas; 106 char ccb_pathinq_settings_opaque[PATHINQ_SETTINGS_SIZE]; 107 } xport_specific; 108 u_int maxio; /* Max supported I/O size, in bytes. */ 109 u_int16_t hba_vendor; /* HBA vendor ID */ 110 u_int16_t hba_device; /* HBA device ID */ 111 u_int16_t hba_subvendor; /* HBA subvendor ID */ 112 u_int16_t hba_subdevice; /* HBA subdevice ID */ 113 }; 114 115 struct ccb_trans_settings_0x17 { 116 struct ccb_hdr_0x17 ccb_h; 117 cts_type type; /* Current or User settings */ 118 cam_proto protocol; 119 u_int protocol_version; 120 cam_xport transport; 121 u_int transport_version; 122 union { 123 u_int valid; /* Which fields to honor */ 124 struct ccb_trans_settings_ata ata; 125 struct ccb_trans_settings_scsi scsi; 126 } proto_specific; 127 union { 128 u_int valid; /* Which fields to honor */ 129 struct ccb_trans_settings_spi spi; 130 struct ccb_trans_settings_fc fc; 131 struct ccb_trans_settings_sas sas; 132 struct ccb_trans_settings_pata ata; 133 struct ccb_trans_settings_sata sata; 134 } xport_specific; 135 }; 136 137 #define CAM_0X17_DATA_LEN CAM_0X18_DATA_LEN 138 #define CAM_0X17_LEN (sizeof(struct ccb_hdr_0x17) + CAM_0X17_DATA_LEN) 139 140 #define CAMIOCOMMAND_0x17 _IOC(IOC_INOUT, CAM_VERSION_0x17, 2, CAM_0X17_LEN) 141 #define CAMGETPASSTHRU_0x17 _IOC(IOC_INOUT, CAM_VERSION_0x17, 3, CAM_0X17_LEN) 142 143 /* Version 0x18 compatibility */ 144 #define CAM_VERSION_0x18 0x18 145 146 struct ccb_hdr_0x18 { 147 cam_pinfo pinfo; /* Info for priority scheduling */ 148 camq_entry xpt_links; /* For chaining in the XPT layer */ 149 camq_entry sim_links; /* For chaining in the SIM layer */ 150 camq_entry periph_links; /* For chaining in the type driver */ 151 u_int32_t retry_count; 152 void (*cbfcnp)(struct cam_periph *, union ccb *); 153 xpt_opcode func_code; /* XPT function code */ 154 u_int32_t status; /* Status returned by CAM subsystem */ 155 struct cam_path *path; /* Compiled path for this ccb */ 156 path_id_t path_id; /* Path ID for the request */ 157 target_id_t target_id; /* Target device ID */ 158 u_int target_lun; /* Target LUN number */ 159 u_int64_t ext_lun; /* 64-bit LUN, more or less */ 160 u_int32_t flags; /* ccb_flags */ 161 u_int32_t xflags; /* extended ccb_flags */ 162 ccb_ppriv_area periph_priv; 163 ccb_spriv_area sim_priv; 164 ccb_qos_area qos; 165 u_int32_t timeout; /* Hard timeout value in seconds */ 166 struct timeval softtimeout; /* Soft timeout value in sec + usec */ 167 }; 168 169 typedef enum { 170 CAM_EXTLUN_VALID_0x18 = 0x00000001,/* 64bit lun field is valid */ 171 } ccb_xflags_0x18; 172 173 struct ccb_trans_settings_0x18 { 174 struct ccb_hdr_0x18 ccb_h; 175 cts_type type; /* Current or User settings */ 176 cam_proto protocol; 177 u_int protocol_version; 178 cam_xport transport; 179 u_int transport_version; 180 union { 181 u_int valid; /* Which fields to honor */ 182 struct ccb_trans_settings_ata ata; 183 struct ccb_trans_settings_scsi scsi; 184 } proto_specific; 185 union { 186 u_int valid; /* Which fields to honor */ 187 struct ccb_trans_settings_spi spi; 188 struct ccb_trans_settings_fc fc; 189 struct ccb_trans_settings_sas sas; 190 struct ccb_trans_settings_pata ata; 191 struct ccb_trans_settings_sata sata; 192 } xport_specific; 193 }; 194 195 struct dev_match_result_0x18 { 196 dev_match_type type; 197 union { 198 struct { 199 char periph_name[DEV_IDLEN]; 200 u_int32_t unit_number; 201 path_id_t path_id; 202 target_id_t target_id; 203 u_int target_lun; 204 } periph_result; 205 struct { 206 path_id_t path_id; 207 target_id_t target_id; 208 u_int target_lun; 209 cam_proto protocol; 210 struct scsi_inquiry_data inq_data; 211 struct ata_params ident_data; 212 dev_result_flags flags; 213 } device_result; 214 struct bus_match_result bus_result; 215 } result; 216 }; 217 218 #define CAM_0X18_DATA_LEN (sizeof(union ccb) - 2*sizeof(void *) - sizeof(struct ccb_hdr)) 219 #define CAM_0X18_LEN (sizeof(struct ccb_hdr_0x18) + CAM_0X18_DATA_LEN) 220 221 #define CAMIOCOMMAND_0x18 _IOC(IOC_INOUT, CAM_VERSION_0x18, 2, CAM_0X18_LEN) 222 #define CAMGETPASSTHRU_0x18 _IOC(IOC_INOUT, CAM_VERSION_0x18, 3, CAM_0X18_LEN) 223 224 #endif 225 #endif
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