isp_target.h

这个linux源代码是很全面的~基本完整了~使用c编译的~由于时间问题我没有亲自测试~但就算用来做参考资料也是非常好的

/* @(#)isp_target.h 1.14 */
/*
 * Qlogic Target Mode Structure and Flag Definitions
 *
 * Copyright (c) 1997, 1998
 * Patrick Stirling
 * [e-mail]
 * All rights reserved.
 *
 * Additional Copyright (c) 1999, 2000, 2001
 * Matthew Jacob
 * [e-mail]
 * 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 immediately at the beginning of the file, without modification,
 *    this list of conditions, and the following disclaimer.
 * 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
 * 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.
 *
 */
#ifndef	_ISP_TARGET_H
#define	_ISP_TARGET_H

/*
 * Defines for all entry types
 */
#define QLTM_SVALID	0x80
#define	QLTM_SENSELEN	18

/*
 * Structure for Enable Lun and Modify Lun queue entries
 */
typedef struct {
	isphdr_t	le_header;
	u_int32_t	le_reserved;
	u_int8_t	le_lun;
	u_int8_t	le_rsvd;
	u_int8_t	le_ops;		/* Modify LUN only */
	u_int8_t	le_tgt;		/* Not for FC */
	u_int32_t	le_flags;	/* Not for FC */
	u_int8_t	le_status;
	u_int8_t	le_reserved2;
	u_int8_t	le_cmd_count;
	u_int8_t	le_in_count;
	u_int8_t	le_cdb6len;	/* Not for FC */
	u_int8_t	le_cdb7len;	/* Not for FC */
	u_int16_t	le_timeout;
	u_int16_t	le_reserved3[20];
} lun_entry_t;

/*
 * le_flags values
 */
#define LUN_TQAE	0x00000002	/* bit1  Tagged Queue Action Enable */
#define LUN_DSSM	0x01000000	/* bit24 Disable Sending SDP Message */
#define	LUN_DISAD	0x02000000	/* bit25 Disable autodisconnect */
#define LUN_DM		0x40000000	/* bit30 Disconnects Mandatory */

/*
 * le_ops values
 */
#define LUN_CCINCR	0x01	/* increment command count */
#define LUN_CCDECR	0x02	/* decrement command count */
#define LUN_ININCR	0x40	/* increment immed. notify count */
#define LUN_INDECR	0x80	/* decrement immed. notify count */

/*
 * le_status values
 */
#define	LUN_OK		0x01	/* we be rockin' */
#define LUN_ERR		0x04	/* request completed with error */
#define LUN_INVAL	0x06	/* invalid request */
#define LUN_NOCAP	0x16	/* can't provide requested capability */
#define LUN_ENABLED	0x3E	/* LUN already enabled */

/*
 * Immediate Notify Entry structure
 */
#define IN_MSGLEN	8	/* 8 bytes */
#define IN_RSVDLEN	8	/* 8 words */
typedef struct {
	isphdr_t	in_header;
	u_int32_t	in_reserved;
	u_int8_t	in_lun;		/* lun */
	u_int8_t	in_iid;		/* initiator */
	u_int8_t	in_reserved2;
	u_int8_t	in_tgt;		/* target */
	u_int32_t	in_flags;
	u_int8_t	in_status;
	u_int8_t	in_rsvd2;
	u_int8_t	in_tag_val;	/* tag value */
	u_int8_t	in_tag_type;	/* tag type */
	u_int16_t	in_seqid;	/* sequence id */
	u_int8_t	in_msg[IN_MSGLEN];	/* SCSI message bytes */
	u_int16_t	in_reserved3[IN_RSVDLEN];
	u_int8_t	in_sense[QLTM_SENSELEN];/* suggested sense data */
} in_entry_t;

typedef struct {
	isphdr_t	in_header;
	u_int32_t	in_reserved;
	u_int8_t	in_lun;		/* lun */
	u_int8_t	in_iid;		/* initiator */
	u_int16_t	in_scclun;
	u_int32_t	in_reserved2;
	u_int16_t	in_status;
	u_int16_t	in_task_flags;
	u_int16_t	in_seqid;	/* sequence id */
} in_fcentry_t;

/*
 * Values for the in_status field
 */
#define	IN_REJECT	0x0D	/* Message Reject message received */
#define IN_RESET	0x0E	/* Bus Reset occurred */
#define IN_NO_RCAP	0x16	/* requested capability not available */
#define IN_IDE_RECEIVED	0x33	/* Initiator Detected Error msg received */
#define IN_RSRC_UNAVAIL	0x34	/* resource unavailable */
#define IN_MSG_RECEIVED	0x36	/* SCSI message received */
#define	IN_ABORT_TASK	0x20	/* task named in RX_ID is being aborted (FC) */
#define	IN_PORT_LOGOUT	0x29	/* port has logged out (FC) */
#define	IN_PORT_CHANGED	0x2A	/* port changed */
#define	IN_GLOBAL_LOGO	0x2E	/* all ports logged out */
#define	IN_NO_NEXUS	0x3B	/* Nexus not established */

/*
 * Values for the in_task_flags field- should only get one at a time!
 */
#define	TASK_FLAGS_ABORT_TASK		(1<<9)
#define	TASK_FLAGS_CLEAR_TASK_SET	(1<<10)
#define	TASK_FLAGS_TARGET_RESET		(1<<13)
#define	TASK_FLAGS_CLEAR_ACA		(1<<14)
#define	TASK_FLAGS_TERMINATE_TASK	(1<<15)

#ifndef	MSG_ABORT_TAG
#define	MSG_ABORT_TAG		0x06
#endif
#ifndef	MSG_CLEAR_QUEUE
#define	MSG_CLEAR_QUEUE		0x0e
#endif
#ifndef	MSG_BUS_DEV_RESET
#define	MSG_BUS_DEV_RESET	0x0b
#endif
#ifndef	MSG_REL_RECOVERY
#define	MSG_REL_RECOVERY	0x10
#endif
#ifndef	MSG_TERM_IO_PROC
#define	MSG_TERM_IO_PROC	0x11
#endif


/*
 * Notify Acknowledge Entry structure
 */
#define NA_RSVDLEN	22
typedef struct {
	isphdr_t	na_header;
	u_int32_t	na_reserved;
	u_int8_t	na_lun;		/* lun */
	u_int8_t	na_iid;		/* initiator */
	u_int8_t	na_reserved2;
	u_int8_t	na_tgt;		/* target */
	u_int32_t	na_flags;
	u_int8_t	na_status;
	u_int8_t	na_event;
	u_int16_t	na_seqid;	/* sequence id */
	u_int16_t	na_reserved3[NA_RSVDLEN];
} na_entry_t;

/*
 * Value for the na_event field
 */
#define NA_RST_CLRD	0x80	/* Clear an async event notification */
#define	NA_OK		0x01	/* Notify Acknowledge Succeeded */
#define	NA_INVALID	0x06	/* Invalid Notify Acknowledge */

#define	NA2_RSVDLEN	21
typedef struct {
	isphdr_t	na_header;
	u_int32_t	na_reserved;
	u_int8_t	na_lun;		/* lun */
	u_int8_t	na_iid;		/* initiator */
	u_int16_t	na_scclun;
	u_int16_t	na_flags;
	u_int16_t	na_reserved2;
	u_int16_t	na_status;
	u_int16_t	na_task_flags;
	u_int16_t	na_seqid;	/* sequence id */
	u_int16_t	na_reserved3[NA2_RSVDLEN];
} na_fcentry_t;
#define	NAFC_RCOUNT	0x80	/* increment resource count */
#define NAFC_RST_CLRD	0x20	/* Clear LIP Reset */
/*
 * Accept Target I/O Entry structure
 */
#define ATIO_CDBLEN	26

typedef struct {
	isphdr_t	at_header;
	u_int16_t	at_reserved;
	u_int16_t	at_handle;
	u_int8_t	at_lun;		/* lun */
	u_int8_t	at_iid;		/* initiator */
	u_int8_t	at_cdblen; 	/* cdb length */
	u_int8_t	at_tgt;		/* target */
	u_int32_t	at_flags;
	u_int8_t	at_status;	/* firmware status */
	u_int8_t	at_scsi_status;	/* scsi status */
	u_int8_t	at_tag_val;	/* tag value */
	u_int8_t	at_tag_type;	/* tag type */
	u_int8_t	at_cdb[ATIO_CDBLEN];	/* received CDB */
	u_int8_t	at_sense[QLTM_SENSELEN];/* suggested sense data */
} at_entry_t;

/*
 * at_flags values
 */
#define AT_NODISC	0x00008000	/* disconnect disabled */
#define AT_TQAE		0x00000002	/* Tagged Queue Action enabled */

/*
 * at_status values
 */
#define AT_PATH_INVALID	0x07	/* ATIO sent to firmware for disabled lun */
#define	AT_RESET	0x0E	/* SCSI Bus Reset Occurred */
#define AT_PHASE_ERROR	0x14	/* Bus phase sequence error */
#define AT_NOCAP	0x16	/* Requested capability not available */
#define AT_BDR_MSG	0x17	/* Bus Device Reset msg received */
#define AT_CDB		0x3D	/* CDB received */

/*
 * Macros to create and fetch and test concatenated handle and tag value macros
 */

#define	AT_MAKE_TAGID(tid, aep)						\
	tid = ((aep)->at_handle << 16);					\
	if ((aep)->at_flags & AT_TQAE)					\
		(tid) |= ((aep)->at_tag_val + 1)

#define	CT_MAKE_TAGID(tid, ct)						\
	tid = ((ct)->ct_fwhandle << 16);				\
	if ((ct)->ct_flags & CT_TQAE)					\
		(tid) |= ((ct)->ct_tag_val + 1)

#define	AT_HAS_TAG(val)		((val) & 0xffff)
#define	AT_GET_TAG(val)		AT_HAS_TAG(val) - 1
#define	AT_GET_HANDLE(val)	((val) >> 16)

/*
 * Accept Target I/O Entry structure, Type 2
 */
#define ATIO2_CDBLEN	16

typedef struct {
	isphdr_t	at_header;
	u_int32_t	at_reserved;
	u_int8_t	at_lun;		/* lun or reserved */
	u_int8_t	at_iid;		/* initiator */
	u_int16_t	at_rxid; 	/* response ID */
	u_int16_t	at_flags;
	u_int16_t	at_status;	/* firmware status */
	u_int8_t	at_reserved1;
	u_int8_t	at_taskcodes;
	u_int8_t	at_taskflags;