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
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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 * $FreeBSD$ 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 /* Version 0x16 compatibility */ 44 #define CAM_VERSION_0x16 0x16 45 46 /* The size of the union ccb didn't change when going to 0x17 */ 47 #define CAMIOCOMMAND_0x16 _IOC(IOC_INOUT, CAM_VERSION_0x16, 2, CAM_0X17_LEN) 48 #define CAMGETPASSTHRU_0x16 _IOC(IOC_INOUT, CAM_VERSION_0x16, 3, CAM_0X17_LEN) 49 50 #define CAM_SCATTER_VALID_0x16 0x00000010 51 #define CAM_SG_LIST_PHYS_0x16 0x00040000 52 #define CAM_DATA_PHYS_0x16 0x00200000 53 54 /* Version 0x17 compatibility */ 55 #define CAM_VERSION_0x17 0x17 56 57 struct ccb_hdr_0x17 { 58 cam_pinfo pinfo; /* Info for priority scheduling */ 59 camq_entry xpt_links; /* For chaining in the XPT layer */ 60 camq_entry sim_links; /* For chaining in the SIM layer */ 61 camq_entry periph_links; /* For chaining in the type driver */ 62 u_int32_t retry_count; 63 void (*cbfcnp)(struct cam_periph *, union ccb *); 64 xpt_opcode func_code; /* XPT function code */ 65 u_int32_t status; /* Status returned by CAM subsystem */ 66 struct cam_path *path; /* Compiled path for this ccb */ 67 path_id_t path_id; /* Path ID for the request */ 68 target_id_t target_id; /* Target device ID */ 69 u_int target_lun; /* Target LUN number */ 70 u_int32_t flags; /* ccb_flags */ 71 ccb_ppriv_area periph_priv; 72 ccb_spriv_area sim_priv; 73 u_int32_t timeout; /* Hard timeout value in seconds */ 74 struct callout *timeout_ch; 75 }; 76 77 struct ccb_pathinq_0x17 { 78 struct ccb_hdr_0x17 ccb_h; 79 u_int8_t version_num; /* Version number for the SIM/HBA */ 80 u_int8_t hba_inquiry; /* Mimic of INQ byte 7 for the HBA */ 81 u_int8_t target_sprt; /* Flags for target mode support */ 82 u_int8_t hba_misc; /* Misc HBA features */ 83 u_int16_t hba_eng_cnt; /* HBA engine count */ 84 /* Vendor Unique capabilities */ 85 u_int8_t vuhba_flags[VUHBALEN]; 86 u_int32_t max_target; /* Maximum supported Target */ 87 u_int32_t max_lun; /* Maximum supported Lun */ 88 u_int32_t async_flags; /* Installed Async handlers */ 89 path_id_t hpath_id; /* Highest Path ID in the subsystem */ 90 target_id_t initiator_id; /* ID of the HBA on the SCSI bus */ 91 char sim_vid[SIM_IDLEN]; /* Vendor ID of the SIM */ 92 char hba_vid[HBA_IDLEN]; /* Vendor ID of the HBA */ 93 char dev_name[DEV_IDLEN];/* Device name for SIM */ 94 u_int32_t unit_number; /* Unit number for SIM */ 95 u_int32_t bus_id; /* Bus ID for SIM */ 96 u_int32_t base_transfer_speed;/* Base bus speed in KB/sec */ 97 cam_proto protocol; 98 u_int protocol_version; 99 cam_xport transport; 100 u_int transport_version; 101 union { 102 struct ccb_pathinq_settings_spi spi; 103 struct ccb_pathinq_settings_fc fc; 104 struct ccb_pathinq_settings_sas sas; 105 char ccb_pathinq_settings_opaque[PATHINQ_SETTINGS_SIZE]; 106 } xport_specific; 107 u_int maxio; /* Max supported I/O size, in bytes. */ 108 u_int16_t hba_vendor; /* HBA vendor ID */ 109 u_int16_t hba_device; /* HBA device ID */ 110 u_int16_t hba_subvendor; /* HBA subvendor ID */ 111 u_int16_t hba_subdevice; /* HBA subdevice ID */ 112 }; 113 114 struct ccb_trans_settings_0x17 { 115 struct ccb_hdr_0x17 ccb_h; 116 cts_type type; /* Current or User settings */ 117 cam_proto protocol; 118 u_int protocol_version; 119 cam_xport transport; 120 u_int transport_version; 121 union { 122 u_int valid; /* Which fields to honor */ 123 struct ccb_trans_settings_ata ata; 124 struct ccb_trans_settings_scsi scsi; 125 } proto_specific; 126 union { 127 u_int valid; /* Which fields to honor */ 128 struct ccb_trans_settings_spi spi; 129 struct ccb_trans_settings_fc fc; 130 struct ccb_trans_settings_sas sas; 131 struct ccb_trans_settings_pata ata; 132 struct ccb_trans_settings_sata sata; 133 } xport_specific; 134 }; 135 136 #define CAM_0X17_DATA_LEN CAM_0X18_DATA_LEN 137 #define CAM_0X17_LEN (sizeof(struct ccb_hdr_0x17) + CAM_0X17_DATA_LEN) 138 139 #define CAMIOCOMMAND_0x17 _IOC(IOC_INOUT, CAM_VERSION_0x17, 2, CAM_0X17_LEN) 140 #define CAMGETPASSTHRU_0x17 _IOC(IOC_INOUT, CAM_VERSION_0x17, 3, CAM_0X17_LEN) 141 142 /* Version 0x18 compatibility */ 143 #define CAM_VERSION_0x18 0x18 144 145 struct ccb_hdr_0x18 { 146 cam_pinfo pinfo; /* Info for priority scheduling */ 147 camq_entry xpt_links; /* For chaining in the XPT layer */ 148 camq_entry sim_links; /* For chaining in the SIM layer */ 149 camq_entry periph_links; /* For chaining in the type driver */ 150 u_int32_t retry_count; 151 void (*cbfcnp)(struct cam_periph *, union ccb *); 152 xpt_opcode func_code; /* XPT function code */ 153 u_int32_t status; /* Status returned by CAM subsystem */ 154 struct cam_path *path; /* Compiled path for this ccb */ 155 path_id_t path_id; /* Path ID for the request */ 156 target_id_t target_id; /* Target device ID */ 157 u_int target_lun; /* Target LUN number */ 158 u_int64_t ext_lun; /* 64-bit LUN, more or less */ 159 u_int32_t flags; /* ccb_flags */ 160 u_int32_t xflags; /* extended ccb_flags */ 161 ccb_ppriv_area periph_priv; 162 ccb_spriv_area sim_priv; 163 ccb_qos_area qos; 164 u_int32_t timeout; /* Hard timeout value in seconds */ 165 struct timeval softtimeout; /* Soft timeout value in sec + usec */ 166 }; 167 168 typedef enum { 169 CAM_EXTLUN_VALID_0x18 = 0x00000001,/* 64bit lun field is valid */ 170 } ccb_xflags_0x18; 171 172 struct ccb_trans_settings_0x18 { 173 struct ccb_hdr_0x18 ccb_h; 174 cts_type type; /* Current or User settings */ 175 cam_proto protocol; 176 u_int protocol_version; 177 cam_xport transport; 178 u_int transport_version; 179 union { 180 u_int valid; /* Which fields to honor */ 181 struct ccb_trans_settings_ata ata; 182 struct ccb_trans_settings_scsi scsi; 183 } proto_specific; 184 union { 185 u_int valid; /* Which fields to honor */ 186 struct ccb_trans_settings_spi spi; 187 struct ccb_trans_settings_fc fc; 188 struct ccb_trans_settings_sas sas; 189 struct ccb_trans_settings_pata ata; 190 struct ccb_trans_settings_sata sata; 191 } xport_specific; 192 }; 193 194 struct dev_match_result_0x18 { 195 dev_match_type type; 196 union { 197 struct { 198 char periph_name[DEV_IDLEN]; 199 u_int32_t unit_number; 200 path_id_t path_id; 201 target_id_t target_id; 202 u_int target_lun; 203 } periph_result; 204 struct { 205 path_id_t path_id; 206 target_id_t target_id; 207 u_int target_lun; 208 cam_proto protocol; 209 struct scsi_inquiry_data inq_data; 210 struct ata_params ident_data; 211 dev_result_flags flags; 212 } device_result; 213 struct bus_match_result bus_result; 214 } result; 215 }; 216 217 #define CAM_0X18_DATA_LEN (sizeof(union ccb) - 2*sizeof(void *) - sizeof(struct ccb_hdr)) 218 #define CAM_0X18_LEN (sizeof(struct ccb_hdr_0x18) + CAM_0X18_DATA_LEN) 219 220 #define CAMIOCOMMAND_0x18 _IOC(IOC_INOUT, CAM_VERSION_0x18, 2, CAM_0X18_LEN) 221 #define CAMGETPASSTHRU_0x18 _IOC(IOC_INOUT, CAM_VERSION_0x18, 3, CAM_0X18_LEN) 222 223 /* Version 0x19 compatibility */ 224 #define CAM_VERSION_0x19 0x19 225 #define CAMIOCOMMAND_0x19 _IOWR(CAM_VERSION_0x19, 2, union ccb) 226 #define CAMGETPASSTHRU_0x19 _IOWR(CAM_VERSION_0x19, 3, union ccb) 227 #define CAMIOQUEUE_0x19 _IO(CAM_VERSION_0x19, 4) 228 #define CAMIOGET_0x19 _IO(CAM_VERSION_0x19, 5) 229 230 #endif 231 #endif
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