1/*- 2 * CAM ioctl compatibility shims 3 * 4 * Copyright (c) 2013 Scott Long 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions, and the following disclaimer, 12 * without modification, immediately at the beginning of the file. 13 * 2. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31#ifndef _CAM_CAM_COMPAT_H 32#define _CAM_CAM_COMPAT_H 33 34/* No user-servicable parts in here. */ 35#ifdef _KERNEL 36 37int cam_compat_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 38 struct thread *td, int(*cbfnp)(struct cdev *, u_long, caddr_t, int, 39 struct thread *)); 40 41 42/* Version 0x16 compatibility */ 43#define CAM_VERSION_0x16 0x16 44 45/* The size of the union ccb didn't change when going to 0x17 */ 46#define CAMIOCOMMAND_0x16 _IOWR(CAM_VERSION_0x16, 2, union ccb) 47#define CAMGETPASSTHRU_0x16 _IOWR(CAM_VERSION_0x16, 3, union ccb) 48 49#define CAM_SCATTER_VALID_0x16 0x00000010 50#define CAM_SG_LIST_PHYS_0x16 0x00040000 51#define CAM_DATA_PHYS_0x16 0x00200000 52 53/* Version 0x17 compatibility */ 54#define CAM_VERSION_0x17 0x17 55 56struct ccb_hdr_0x17 { 57 cam_pinfo pinfo; /* Info for priority scheduling */ 58 camq_entry xpt_links; /* For chaining in the XPT layer */ 59 camq_entry sim_links; /* For chaining in the SIM layer */ 60 camq_entry periph_links; /* For chaining in the type driver */ 61 u_int32_t retry_count; 62 void (*cbfcnp)(struct cam_periph *, union ccb *); 63 xpt_opcode func_code; /* XPT function code */ 64 u_int32_t status; /* Status returned by CAM subsystem */ 65 struct cam_path *path; /* Compiled path for this ccb */ 66 path_id_t path_id; /* Path ID for the request */ 67 target_id_t target_id; /* Target device ID */ 68 lun_id_t target_lun; /* Target LUN number */ 69 u_int32_t flags; /* ccb_flags */ 70 ccb_ppriv_area periph_priv; 71 ccb_spriv_area sim_priv; 72 u_int32_t timeout; /* Hard timeout value in seconds */ 73 struct callout_handle timeout_ch; 74}; 75 76struct ccb_pathinq_0x17 { 77 struct ccb_hdr_0x17 ccb_h; 78 u_int8_t version_num; /* Version number for the SIM/HBA */ 79 u_int8_t hba_inquiry; /* Mimic of INQ byte 7 for the HBA */ 80 u_int8_t target_sprt; /* Flags for target mode support */ 81 u_int8_t hba_misc; /* Misc HBA features */ 82 u_int16_t hba_eng_cnt; /* HBA engine count */ 83 /* Vendor Unique capabilities */ 84 u_int8_t vuhba_flags[VUHBALEN]; 85 u_int32_t max_target; /* Maximum supported Target */ 86 u_int32_t max_lun; /* Maximum supported Lun */ 87 u_int32_t async_flags; /* Installed Async handlers */ 88 path_id_t hpath_id; /* Highest Path ID in the subsystem */ 89 target_id_t initiator_id; /* ID of the HBA on the SCSI bus */ 90 char sim_vid[SIM_IDLEN]; /* Vendor ID of the SIM */ 91 char hba_vid[HBA_IDLEN]; /* Vendor ID of the HBA */ 92 char dev_name[DEV_IDLEN];/* Device name for SIM */ 93 u_int32_t unit_number; /* Unit number for SIM */ 94 u_int32_t bus_id; /* Bus ID for SIM */ 95 u_int32_t base_transfer_speed;/* Base bus speed in KB/sec */ 96 cam_proto protocol; 97 u_int protocol_version; 98 cam_xport transport; 99 u_int transport_version; 100 union { 101 struct ccb_pathinq_settings_spi spi; 102 struct ccb_pathinq_settings_fc fc; 103 struct ccb_pathinq_settings_sas sas; 104 char ccb_pathinq_settings_opaque[PATHINQ_SETTINGS_SIZE]; 105 } xport_specific; 106 u_int maxio; /* Max supported I/O size, in bytes. */ 107 u_int16_t hba_vendor; /* HBA vendor ID */ 108 u_int16_t hba_device; /* HBA device ID */ 109 u_int16_t hba_subvendor; /* HBA subvendor ID */ 110 u_int16_t hba_subdevice; /* HBA subdevice ID */ 111}; 112 113#define CAM_0X17_LEN (sizeof(union ccb) - sizeof(struct ccb_hdr) + sizeof(struct ccb_hdr_0x17)) 114#define CAM_0X17_DATA_LEN (sizeof(union ccb) - sizeof(struct ccb_hdr_0x17)) 115 116#define CAMIOCOMMAND_0x17 _IOC(IOC_INOUT, CAM_VERSION_0x17, 2, CAM_0X17_LEN) 117#define CAMGETPASSTHRU_0x17 _IOC(IOC_INOUT, CAM_VERSION_0x17, 3, CAM_0X17_LEN) 118 119#endif 120#endif 121