iscsi-task.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

#ifndef ISCSI_TASK_H_
#define ISCSI_TASK_H_

/*
 * iSCSI driver for Linux
 * Copyright (C) 2001 Cisco Systems, Inc.
 * maintained by [e-mail]
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published
 * by the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * See the file COPYING included with this distribution for more details.
 *
 * $Id: iscsi-task.h,v 1.2 2002/06/14 21:15:11 smferris Exp $
 *
 * iscsi-task.h
 *
 *   define the iSCSI task structure needed by the kernel module
 * 
 */

#include "iscsi-kernel.h"

struct iscsi_session;

/* task flags */
#define ISCSI_TASK_CONTROL       1
#define ISCSI_TASK_WRITE         2
#define ISCSI_TASK_READ          3

#define ISCSI_TASK_ABORTING      4
#define ISCSI_TASK_ABORTED       5

#define ISCSI_TASK_INITIAL_R2T   8

#define ISCSI_TASK_BAD_DATA      12

#define ISCSI_TASK_REJECTED      30
#define ISCSI_TASK_RESET_FAILED  31

typedef struct iscsi_task {
    struct iscsi_task  *volatile order_next;
    struct iscsi_task  *volatile order_prev;
    struct iscsi_task  *volatile next;
    struct iscsi_task  *volatile prev;
    Scsi_Cmnd          *volatile scsi_cmnd;
    struct iscsi_session    *session;
    atomic_t                refcount;
    uint32_t                rxdata;
    volatile unsigned long  flags;
    uint32_t                cmdsn;
    uint32_t                itt;
    uint32_t                ttt;
    uint32_t                mgmt_itt;
    unsigned int            data_offset;
    int                     data_length;
    wait_queue_head_t       wait_q;
} iscsi_task_t;

typedef struct iscsi_task_collection {
    struct iscsi_task  *volatile head;
    struct iscsi_task  *volatile tail;
} iscsi_task_collection_t;

#endif