/*
* HighPoint RR3xxx/4xxx controller driver for Linux
* Copyright (C) 2006-2009 HighPoint Technologies, Inc. All Rights Reserved.
*
* 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.
*
* Please report bugs/comments/suggestions to linux@highpoint-tech.com
*
* For more information, visit http://www.highpoint-tech.com
*/
#include <linux/module.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/errno.h>
#include <linux/delay.h>
#include <linux/timer.h>
#include <linux/spinlock.h>
#include <asm/uaccess.h>
#include <asm/io.h>
#include <asm/div64.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsi_host.h>
#include "hptiop.h"
MODULE_AUTHOR("HighPoint Technologies, Inc.");
MODULE_DESCRIPTION("HighPoint RocketRAID 3xxx/4xxx Controller Driver");
static char driver_name[] = "hptiop";
static const char driver_name_long[] = "RocketRAID 3xxx/4xxx Controller driver";
static const char driver_ver[] = "v1.6 (090910)";
static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec);
static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag,
struct hpt_iop_request_scsi_command *req);
static void hptiop_host_request_callback_itl(struct hptiop_hba *hba, u32 tag);
static void hptiop_iop_request_callback_itl(struct hptiop_hba *hba, u32 tag);
static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg);
static int iop_wait_ready_itl(struct hptiop_hba *hba, u32 millisec)
{
u32 req = 0;
int i;
for (i = 0; i < millisec; i++) {
req = readl(&hba->u.itl.iop->inbound_queue);
if (req != IOPMU_QUEUE_EMPTY)
break;
msleep(1);
}
if (req != IOPMU_QUEUE_EMPTY) {
writel(req, &hba->u.itl.iop->outbound_queue);
readl(&hba->u.itl.iop->outbound_intstatus);
return 0;
}
return -1;
}
static int iop_wait_ready_mv(struct hptiop_hba *hba, u32 millisec)
{
return iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_NOP, millisec