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