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/*
* Ioctl definitions for the Target Mode SCSI Proccessor Target driver for CAM.
*
* Copyright (c) 1998 Justin T. Gibbs.
* 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_SCSI_SCSI_TARGETIO_H_
#define _CAM_SCSI_SCSI_TARGETIO_H_
#ifndef _KERNEL
#include <sys/types.h>
#endif
#include <sys/ioccom.h>
#include <cam/cam.h>
#include <cam/cam_ccb.h>
TAILQ_HEAD(ccb_queue, ccb_hdr);
/* Determine and clear exception state in the driver */
typedef enum {
TARG_EXCEPT_NONE = 0x00,
TARG_EXCEPT_DEVICE_INVALID = 0x01,
TARG_EXCEPT_BDR_RECEIVED = 0x02,
TARG_EXCEPT_BUS_RESET_SEEN = 0x04,
TARG_EXCEPT_ABORT_SEEN = 0x08,
TARG_EXCEPT_ABORT_TAG_SEEN = 0x10,
TARG_EXCEPT_UNKNOWN_ATIO = 0x80
} targ_exception;
#define TARGIOCFETCHEXCEPTION _IOR('C', 1, targ_exception)
#define TARGIOCCLEAREXCEPTION _IOW('C', 2, targ_exception)
/*
* Retreive an Accept Target I/O CCB for a command that is not handled
* directly by the kernel target driver.
*/
#define TARGIOCFETCHATIO _IOR('C', 3, struct ccb_accept_tio)
/*
* Used for responding to incoming ATIO requests. XPT_CONTINUE_TARG_IO
* operations are the norm, but ccb types for manipulating the device
* queue, etc. can also be used if error handling is to be performed by the
* user land process.
*/
#define TARGIOCCOMMAND _IOWR('C', 4, union ccb)
typedef enum {
UA_NONE = 0x00,
UA_POWER_ON = 0x01,
UA_BUS_RESET = 0x02,
UA_BDR = 0x04
} ua_types;
typedef enum {
CA_NONE = 0x00,
CA_UNIT_ATTN = 0x01,
CA_CMD_SENSE = 0x02
} ca_types;
struct initiator_state {
ua_types pending_ua;
ca_types pending_ca;
struct scsi_sense_data sense_data;
struct ccb_queue held_queue;
};
struct ioc_initiator_state {
u_int initiator_id;
struct initiator_state istate;
};
/*
* Get and Set Contingent Allegiance and Unit Attention state
* presented by the target driver. This is usually used to
* properly report and error condition in response to an incoming
* ATIO request handled by the userland process.
*
* The initiator_id must be properly initialized in the ioc_initiator_state
* structure before calling TARGIOCGETISTATE.
*/
#define TARGIOCGETISTATE _IOWR('C', 6, struct ioc_initiator_state)
#define TARGIOCSETISTATE _IOW('C', 5, struct ioc_initiator_state)
struct ioc_alloc_unit {
path_id_t path_id;
target_id_t target_id;
lun_id_t lun_id;
u_int unit;
};
/*
* Allocate and Free a target mode instance. For allocation, the path_id,
* target_id, and lun_id fields must be set. On successful completion
* of the ioctl, the unit field will indicate the unit number of the
* newly created instance. For de-allocation, all fields must match
* an instance in the inactive (i.e. closed) state.
*/
#define TARGCTLIOALLOCUNIT _IOWR('C', 7, struct ioc_alloc_unit)
#define TARGCTLIOFREEUNIT _IOW('C', 8, struct ioc_alloc_unit)
/*
* Set/clear debugging for this target mode instance
*/
#define TARGIODEBUG _IOW('C', 9, int)
#endif /* _CAM_SCSI_SCSI_TARGETIO_H_ */
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