224 lines
7.9 KiB
C
224 lines
7.9 KiB
C
/*-
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* CAM ioctl compatibility shims
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*
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* Copyright (c) 2013 Scott Long
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification, immediately at the beginning of the file.
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* 2. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _CAM_CAM_COMPAT_H
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#define _CAM_CAM_COMPAT_H
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/* No user-servicable parts in here. */
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#ifdef _KERNEL
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int cam_compat_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag,
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struct thread *td, int(*cbfnp)(struct cdev *, u_long, caddr_t, int,
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struct thread *));
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/* Version 0x16 compatibility */
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#define CAM_VERSION_0x16 0x16
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/* The size of the union ccb didn't change when going to 0x17 */
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#define CAMIOCOMMAND_0x16 _IOC(IOC_INOUT, CAM_VERSION_0x16, 2, CAM_0X17_LEN)
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#define CAMGETPASSTHRU_0x16 _IOC(IOC_INOUT, CAM_VERSION_0x16, 3, CAM_0X17_LEN)
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#define CAM_SCATTER_VALID_0x16 0x00000010
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#define CAM_SG_LIST_PHYS_0x16 0x00040000
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#define CAM_DATA_PHYS_0x16 0x00200000
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/* Version 0x17 compatibility */
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#define CAM_VERSION_0x17 0x17
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struct ccb_hdr_0x17 {
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cam_pinfo pinfo; /* Info for priority scheduling */
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camq_entry xpt_links; /* For chaining in the XPT layer */
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camq_entry sim_links; /* For chaining in the SIM layer */
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camq_entry periph_links; /* For chaining in the type driver */
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u_int32_t retry_count;
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void (*cbfcnp)(struct cam_periph *, union ccb *);
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xpt_opcode func_code; /* XPT function code */
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u_int32_t status; /* Status returned by CAM subsystem */
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struct cam_path *path; /* Compiled path for this ccb */
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path_id_t path_id; /* Path ID for the request */
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target_id_t target_id; /* Target device ID */
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u_int target_lun; /* Target LUN number */
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u_int32_t flags; /* ccb_flags */
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ccb_ppriv_area periph_priv;
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ccb_spriv_area sim_priv;
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u_int32_t timeout; /* Hard timeout value in seconds */
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struct callout_handle timeout_ch;
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};
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struct ccb_pathinq_0x17 {
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struct ccb_hdr_0x17 ccb_h;
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u_int8_t version_num; /* Version number for the SIM/HBA */
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u_int8_t hba_inquiry; /* Mimic of INQ byte 7 for the HBA */
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u_int8_t target_sprt; /* Flags for target mode support */
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u_int8_t hba_misc; /* Misc HBA features */
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u_int16_t hba_eng_cnt; /* HBA engine count */
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/* Vendor Unique capabilities */
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u_int8_t vuhba_flags[VUHBALEN];
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u_int32_t max_target; /* Maximum supported Target */
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u_int32_t max_lun; /* Maximum supported Lun */
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u_int32_t async_flags; /* Installed Async handlers */
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path_id_t hpath_id; /* Highest Path ID in the subsystem */
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target_id_t initiator_id; /* ID of the HBA on the SCSI bus */
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char sim_vid[SIM_IDLEN]; /* Vendor ID of the SIM */
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char hba_vid[HBA_IDLEN]; /* Vendor ID of the HBA */
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char dev_name[DEV_IDLEN];/* Device name for SIM */
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u_int32_t unit_number; /* Unit number for SIM */
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u_int32_t bus_id; /* Bus ID for SIM */
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u_int32_t base_transfer_speed;/* Base bus speed in KB/sec */
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cam_proto protocol;
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u_int protocol_version;
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cam_xport transport;
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u_int transport_version;
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union {
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struct ccb_pathinq_settings_spi spi;
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struct ccb_pathinq_settings_fc fc;
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struct ccb_pathinq_settings_sas sas;
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char ccb_pathinq_settings_opaque[PATHINQ_SETTINGS_SIZE];
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} xport_specific;
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u_int maxio; /* Max supported I/O size, in bytes. */
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u_int16_t hba_vendor; /* HBA vendor ID */
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u_int16_t hba_device; /* HBA device ID */
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u_int16_t hba_subvendor; /* HBA subvendor ID */
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u_int16_t hba_subdevice; /* HBA subdevice ID */
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};
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struct ccb_trans_settings_0x17 {
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struct ccb_hdr_0x17 ccb_h;
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cts_type type; /* Current or User settings */
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cam_proto protocol;
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u_int protocol_version;
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cam_xport transport;
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u_int transport_version;
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union {
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u_int valid; /* Which fields to honor */
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struct ccb_trans_settings_ata ata;
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struct ccb_trans_settings_scsi scsi;
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} proto_specific;
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union {
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u_int valid; /* Which fields to honor */
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struct ccb_trans_settings_spi spi;
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struct ccb_trans_settings_fc fc;
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struct ccb_trans_settings_sas sas;
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struct ccb_trans_settings_pata ata;
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struct ccb_trans_settings_sata sata;
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} xport_specific;
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};
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#define CAM_0X17_DATA_LEN CAM_0X18_DATA_LEN
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#define CAM_0X17_LEN (sizeof(struct ccb_hdr_0x17) + CAM_0X17_DATA_LEN)
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#define CAMIOCOMMAND_0x17 _IOC(IOC_INOUT, CAM_VERSION_0x17, 2, CAM_0X17_LEN)
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#define CAMGETPASSTHRU_0x17 _IOC(IOC_INOUT, CAM_VERSION_0x17, 3, CAM_0X17_LEN)
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/* Version 0x18 compatibility */
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#define CAM_VERSION_0x18 0x18
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struct ccb_hdr_0x18 {
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cam_pinfo pinfo; /* Info for priority scheduling */
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camq_entry xpt_links; /* For chaining in the XPT layer */
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camq_entry sim_links; /* For chaining in the SIM layer */
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camq_entry periph_links; /* For chaining in the type driver */
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u_int32_t retry_count;
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void (*cbfcnp)(struct cam_periph *, union ccb *);
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xpt_opcode func_code; /* XPT function code */
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u_int32_t status; /* Status returned by CAM subsystem */
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struct cam_path *path; /* Compiled path for this ccb */
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path_id_t path_id; /* Path ID for the request */
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target_id_t target_id; /* Target device ID */
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u_int target_lun; /* Target LUN number */
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u_int64_t ext_lun; /* 64-bit LUN, more or less */
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u_int32_t flags; /* ccb_flags */
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u_int32_t xflags; /* extended ccb_flags */
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ccb_ppriv_area periph_priv;
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ccb_spriv_area sim_priv;
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ccb_qos_area qos;
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u_int32_t timeout; /* Hard timeout value in seconds */
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struct timeval softtimeout; /* Soft timeout value in sec + usec */
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};
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typedef enum {
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CAM_EXTLUN_VALID_0x18 = 0x00000001,/* 64bit lun field is valid */
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} ccb_xflags_0x18;
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struct ccb_trans_settings_0x18 {
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struct ccb_hdr_0x18 ccb_h;
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cts_type type; /* Current or User settings */
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cam_proto protocol;
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u_int protocol_version;
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cam_xport transport;
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u_int transport_version;
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union {
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u_int valid; /* Which fields to honor */
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struct ccb_trans_settings_ata ata;
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struct ccb_trans_settings_scsi scsi;
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} proto_specific;
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union {
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u_int valid; /* Which fields to honor */
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struct ccb_trans_settings_spi spi;
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struct ccb_trans_settings_fc fc;
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struct ccb_trans_settings_sas sas;
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struct ccb_trans_settings_pata ata;
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struct ccb_trans_settings_sata sata;
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} xport_specific;
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};
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struct dev_match_result_0x18 {
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dev_match_type type;
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union {
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struct {
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char periph_name[DEV_IDLEN];
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u_int32_t unit_number;
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path_id_t path_id;
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target_id_t target_id;
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u_int target_lun;
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} periph_result;
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struct {
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path_id_t path_id;
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target_id_t target_id;
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u_int target_lun;
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cam_proto protocol;
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struct scsi_inquiry_data inq_data;
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struct ata_params ident_data;
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dev_result_flags flags;
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} device_result;
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struct bus_match_result bus_result;
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} result;
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};
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#define CAM_0X18_DATA_LEN (sizeof(union ccb) - 2*sizeof(void *) - sizeof(struct ccb_hdr))
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#define CAM_0X18_LEN (sizeof(struct ccb_hdr_0x18) + CAM_0X18_DATA_LEN)
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#define CAMIOCOMMAND_0x18 _IOC(IOC_INOUT, CAM_VERSION_0x18, 2, CAM_0X18_LEN)
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#define CAMGETPASSTHRU_0x18 _IOC(IOC_INOUT, CAM_VERSION_0x18, 3, CAM_0X18_LEN)
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#endif
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#endif
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