/*
* Disk Array driver for HP Smart Array controllers, SCSI Tape module.
* (C) Copyright 2001, 2007 Hewlett-Packard Development Company, L.P.
*
* 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; version 2 of the License.
*
* 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.
*
* 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., 59 Temple Place, Suite 300, Boston, MA
* 02111-1307, 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 <linux/atomic.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include "cciss_scsi.h"
#define CCISS_ABORT_MSG 0x00
#define CCISS_RESET_MSG 0x01
static int fill_cmd(ctlr_info_t *h, CommandList_struct *c, __u8 cmd, void *buff,
size_t size,
__u8 page_code, unsigned char *scsi3addr,
int cmd_type);
static CommandList_struct *cmd_alloc(ctlr_info_t *h);
static CommandList_struct *cmd_special_alloc(ctlr_info_t *h);
static void cmd_free(ctlr_info_t *h, CommandList_struct *c);
static void cmd_special_free(ctlr_info_t *h, CommandList_struct *c);
static int cciss_scsi_write_info(struct Scsi_Host *sh,
char *buffer, /* data buffer */
int length); /* length of data in buffer */
static int cciss_scsi_show_info(struct seq_file *m,
struct Scsi_Host *sh);
static int cciss_scsi_queue_command (struct Scsi_Host *h,
struct scsi_cmnd *cmd);
static int cciss_eh_device_reset_handler(struct scsi_cmnd *);
static int cciss_eh_abort_handler(struct scsi_cmnd *);
static struct cciss_scsi_hba_t ccissscsi[MAX_CTLR] = {
{ .name = "cciss0", .ndevices = 0 },
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