/*
* Disk Array driver for Compaq SA53xx Controllers, SCSI Tape module
* Copyright 2001 Compaq Computer Corporation
*
* 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, GOOD TITLE or
* NON INFRINGEMENT. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Questions/Comments/Bugfixes to iss_storagedev@hp.com
*
* Author: Stephen M. Cameron
*/
#ifdef CONFIG_CISS_SCSI_TAPE
/* Here we have code to present the driver as a scsi driver
as it is simultaneously presented as a block driver. The
reason for doing this is to allow access to SCSI tape drives
through the array controller. Note in particular, neither
physical nor logical disks are presented through the scsi layer. */
#include <linux/timer.h>
#include <linux/completion.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <asm/atomic.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include "cciss_scsi.h"
/* some prototypes... */
static int sendcmd(
__u8 cmd,
int ctlr,
void *buff,
size_t size,
unsigned int use_unit_num, /* 0: address the controller,
1: address logical volume log_unit,
2: address is in scsi3addr */
unsigned int log_unit,
__u8 page_code,
unsigned char *scsi3addr,
int cmd_type);
static int cciss_scsi_proc_info(
struct Scsi_Host *sh,
char *buffer, /* data buffer */
char **start, /* where data in buffer starts */
off_t offset, /* offset from start of imaginary file */
int length, /* l
