linux-imx

/*

 *    driver for Microsemi PQI-based storage controllers

 *    Copyright (c) 2016-2017 Microsemi Corporation

 *    Copyright (c) 2016 PMC-Sierra, Inc.

 *

 *    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, GOOD TITLE or

 *    NON INFRINGEMENT.  See the GNU General Public License for more details.

 *

 *    Questions/Comments/Bugfixes to esc.storagedev@microsemi.com

 *

 */

​

#include <linux/module.h>

#include <linux/kernel.h>

#include <linux/delay.h>

#include <linux/pci.h>

#include <scsi/scsi_device.h>

#include <asm/unaligned.h>

#include "smartpqi.h"

#include "smartpqi_sis.h"

​

/* legacy SIS interface commands */

#define SIS_CMD_GET_ADAPTER_PROPERTIES      0x19

#define SIS_CMD_INIT_BASE_STRUCT_ADDRESS    0x1b

#define SIS_CMD_GET_PQI_CAPABILITIES        0x3000

​

/* for submission of legacy SIS commands */

#define SIS_REENABLE_SIS_MODE           0x1

#define SIS_ENABLE_MSIX             0x40

#define SIS_ENABLE_INTX             0x80

#define SIS_SOFT_RESET              0x100

#define SIS_CMD_READY               0x200

#define SIS_TRIGGER_SHUTDOWN            0x800000

#define SIS_PQI_RESET_QUIESCE           0x1000000

​

#define SIS_CMD_COMPLETE            0x1000

#define SIS_CLEAR_CTRL_TO_HOST_DOORBELL     0x1000

​

#define SIS_CMD_STATUS_SUCCESS          0x1

#define SIS_CMD_COMPLETE_TIMEOUT_SECS       30

#define SIS_CMD_COMPLETE_POLL_INTERVAL_MSECS    10

​

/* used with SIS_CMD_GET_ADAPTER_PROPERTIES command */

#define SIS_EXTENDED_PROPERTIES_SUPPORTED   0x800000

#define SIS_SMARTARRAY_FEATURES_SUPPORTED   0x2

#define SIS_PQI_MODE_SUPPORTED          0x4

#define SIS_PQI_RESET_QUIESCE_SUPPORTED     0x8

#define SIS_REQUIRED_EXTENDED_PROPERTIES    \

    (SIS_SMARTARRAY_FEATURES_SUPPORTED | SIS_PQI_MODE_SUPPORTED)

​

/* used with SIS_CMD_INIT_BASE_STRUCT_ADDRESS command */

#define SIS_BASE_STRUCT_REVISION        9

#define SIS_BASE_STRUCT_ALIGNMENT       16

​

#define SIS_CTRL_KERNEL_UP          0x80

#define SIS_CTRL_KERNEL_PANIC           0x100

#define SIS_CTRL_READY_TIMEOUT_SECS     180