108b7070e7
- Remove the timeout_ch field. It's been deprecated since FreeBSD 7.0; MPSAFE drivers should be managing their own timeout storage. The remaining non-MPSAFE drivers have been modified to also manage their own storage, and should be considered for updating to MPSAFE (or removal) during the FreeBSD 10.x lifecycle. - Add fields related to soft timeouts and quality of service, to be used in upcoming work. - Add room for more flags in the CCB header and path_inq structures. - Begin support for extended 64-bit LUNs. - Bump the CAM version number to 0x18, but add compat shims. Tested with camcontrol and smartctl. Reviewed by: nathanw, ken, kib Approved by: re Obtained from: Netflix
115 lines
4.7 KiB
C
115 lines
4.7 KiB
C
/*-
|
|
* CAM ioctl compatibility shims
|
|
*
|
|
* Copyright (c) 2013 Scott Long
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions, and the following disclaimer,
|
|
* without modification, immediately at the beginning of the file.
|
|
* 2. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
|
|
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _CAM_CAM_COMPAT_H
|
|
#define _CAM_CAM_COMPAT_H
|
|
|
|
int cam_compat_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, struct thread *td, d_ioctl_t *cbfnp);
|
|
|
|
/* Version 0x16 compatibility */
|
|
#define CAM_VERSION_0x16 0x16
|
|
|
|
/* The size of the union ccb didn't change when going to 0x17 */
|
|
#define CAMIOCOMMAND_0x16 _IOWR(CAM_VERSION_0x16, 2, union ccb)
|
|
#define CAMGETPASSTHRU_0x16 _IOWR(CAM_VERSION_0x16, 3, union ccb)
|
|
|
|
#define CAM_SCATTER_VALID_0x16 0x00000010
|
|
#define CAM_SG_LIST_PHYS_0x16 0x00040000
|
|
#define CAM_DATA_PHYS_0x16 0x00200000
|
|
|
|
/* Version 0x17 compatibility */
|
|
#define CAM_VERSION_0x17 0x17
|
|
|
|
struct ccb_hdr_0x17 {
|
|
cam_pinfo pinfo; /* Info for priority scheduling */
|
|
camq_entry xpt_links; /* For chaining in the XPT layer */
|
|
camq_entry sim_links; /* For chaining in the SIM layer */
|
|
camq_entry periph_links; /* For chaining in the type driver */
|
|
u_int32_t retry_count;
|
|
void (*cbfcnp)(struct cam_periph *, union ccb *);
|
|
xpt_opcode func_code; /* XPT function code */
|
|
u_int32_t status; /* Status returned by CAM subsystem */
|
|
struct cam_path *path; /* Compiled path for this ccb */
|
|
path_id_t path_id; /* Path ID for the request */
|
|
target_id_t target_id; /* Target device ID */
|
|
lun_id_t target_lun; /* Target LUN number */
|
|
u_int32_t flags; /* ccb_flags */
|
|
ccb_ppriv_area periph_priv;
|
|
ccb_spriv_area sim_priv;
|
|
u_int32_t timeout; /* Hard timeout value in seconds */
|
|
struct callout_handle timeout_ch;
|
|
};
|
|
|
|
struct ccb_pathinq_0x17 {
|
|
struct ccb_hdr_0x17 ccb_h;
|
|
u_int8_t version_num; /* Version number for the SIM/HBA */
|
|
u_int8_t hba_inquiry; /* Mimic of INQ byte 7 for the HBA */
|
|
u_int8_t target_sprt; /* Flags for target mode support */
|
|
u_int8_t hba_misc; /* Misc HBA features */
|
|
u_int16_t hba_eng_cnt; /* HBA engine count */
|
|
/* Vendor Unique capabilities */
|
|
u_int8_t vuhba_flags[VUHBALEN];
|
|
u_int32_t max_target; /* Maximum supported Target */
|
|
u_int32_t max_lun; /* Maximum supported Lun */
|
|
u_int32_t async_flags; /* Installed Async handlers */
|
|
path_id_t hpath_id; /* Highest Path ID in the subsystem */
|
|
target_id_t initiator_id; /* ID of the HBA on the SCSI bus */
|
|
char sim_vid[SIM_IDLEN]; /* Vendor ID of the SIM */
|
|
char hba_vid[HBA_IDLEN]; /* Vendor ID of the HBA */
|
|
char dev_name[DEV_IDLEN];/* Device name for SIM */
|
|
u_int32_t unit_number; /* Unit number for SIM */
|
|
u_int32_t bus_id; /* Bus ID for SIM */
|
|
u_int32_t base_transfer_speed;/* Base bus speed in KB/sec */
|
|
cam_proto protocol;
|
|
u_int protocol_version;
|
|
cam_xport transport;
|
|
u_int transport_version;
|
|
union {
|
|
struct ccb_pathinq_settings_spi spi;
|
|
struct ccb_pathinq_settings_fc fc;
|
|
struct ccb_pathinq_settings_sas sas;
|
|
char ccb_pathinq_settings_opaque[PATHINQ_SETTINGS_SIZE];
|
|
} xport_specific;
|
|
u_int maxio; /* Max supported I/O size, in bytes. */
|
|
u_int16_t hba_vendor; /* HBA vendor ID */
|
|
u_int16_t hba_device; /* HBA device ID */
|
|
u_int16_t hba_subvendor; /* HBA subvendor ID */
|
|
u_int16_t hba_subdevice; /* HBA subdevice ID */
|
|
};
|
|
|
|
#define CAM_0X17_LEN (sizeof(union ccb) - sizeof(struct ccb_hdr) + sizeof(struct ccb_hdr_0x17))
|
|
#define CAM_0X17_DATA_LEN (sizeof(union ccb) - sizeof(struct ccb_hdr_0x17))
|
|
|
|
#define CAMIOCOMMAND_0x17 _IOC(IOC_INOUT, CAM_VERSION_0x17, 2, CAM_0X17_LEN)
|
|
#define CAMGETPASSTHRU_0x17 _IOC(IOC_INOUT, CAM_VERSION_0x17, 3, CAM_0X17_LEN)
|
|
|
|
#endif
|
|
|