linux/drivers/scsi/pm8001/pm8001_defs.h
Viswas G 5a141315ed scsi: pm80xx: Increase the number of outstanding I/O supported to 1024
The pm80xx driver currently sets the controller queue depth to
256. Hoewver, the controller supports outstanding I/Os up 1024.

Increase the number of outstanding I/Os from 256 to 1024.  CCBs and tags
are allocated according to outstanding I/Os. Also update the can_queue
value (max_out_io - PM8001_RESERVE_SLOT) used by the SCSI midlayer.

[mkp: fixed zeroday complaint]

Link: https://lore.kernel.org/r/20201005145011.23674-4-Viswas.G@microchip.com.com
Reported-by: kernel test robot <lkp@intel.com>
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Ruksar Devadi <Ruksar.devadi@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-10-07 23:50:04 -04:00

144 lines
4.2 KiB
C

/*
* PMC-Sierra 8001/8081/8088/8089 SAS/SATA based host adapters driver
*
* Copyright (c) 2008-2009 USI Co., Ltd.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
*/
#ifndef _PM8001_DEFS_H_
#define _PM8001_DEFS_H_
enum chip_flavors {
chip_8001,
chip_8008,
chip_8009,
chip_8018,
chip_8019,
chip_8074,
chip_8076,
chip_8077,
chip_8006,
chip_8070,
chip_8072
};
enum phy_speed {
PHY_SPEED_15 = 0x01,
PHY_SPEED_30 = 0x02,
PHY_SPEED_60 = 0x04,
PHY_SPEED_120 = 0x08,
};
enum data_direction {
DATA_DIR_NONE = 0x0, /* NO TRANSFER */
DATA_DIR_IN = 0x01, /* INBOUND */
DATA_DIR_OUT = 0x02, /* OUTBOUND */
DATA_DIR_BYRECIPIENT = 0x04, /* UNSPECIFIED */
};
enum port_type {
PORT_TYPE_SAS = (1L << 1),
PORT_TYPE_SATA = (1L << 0),
};
/* driver compile-time configuration */
#define PM8001_MAX_CCB 1024 /* max ccbs supported */
#define PM8001_MPI_QUEUE 1024 /* maximum mpi queue entries */
#define PM8001_MAX_INB_NUM 64
#define PM8001_MAX_OUTB_NUM 64
#define PM8001_CAN_QUEUE 508 /* SCSI Queue depth */
/* Inbound/Outbound queue size */
#define IOMB_SIZE_SPC 64
#define IOMB_SIZE_SPCV 128
/* unchangeable hardware details */
#define PM8001_MAX_PHYS 16 /* max. possible phys */
#define PM8001_MAX_PORTS 16 /* max. possible ports */
#define PM8001_MAX_DEVICES 2048 /* max supported device */
#define PM8001_MAX_MSIX_VEC 64 /* max msi-x int for spcv/ve */
#define PM8001_RESERVE_SLOT 8
#define CONFIG_SCSI_PM8001_MAX_DMA_SG 528
#define PM8001_MAX_DMA_SG CONFIG_SCSI_PM8001_MAX_DMA_SG
enum memory_region_num {
AAP1 = 0x0, /* application acceleration processor */
IOP, /* IO processor */
NVMD, /* NVM device */
FW_FLASH, /* memory for fw flash update */
FORENSIC_MEM, /* memory for fw forensic data */
USI_MAX_MEMCNT_BASE
};
#define PM8001_EVENT_LOG_SIZE (128 * 1024)
/**
* maximum DMA memory regions(number of IBQ + number of IBQ CI
* + number of OBQ + number of OBQ PI)
*/
#define USI_MAX_MEMCNT (USI_MAX_MEMCNT_BASE + ((2 * PM8001_MAX_INB_NUM) \
+ (2 * PM8001_MAX_OUTB_NUM)))
/*error code*/
enum mpi_err {
MPI_IO_STATUS_SUCCESS = 0x0,
MPI_IO_STATUS_BUSY = 0x01,
MPI_IO_STATUS_FAIL = 0x02,
};
/**
* Phy Control constants
*/
enum phy_control_type {
PHY_LINK_RESET = 0x01,
PHY_HARD_RESET = 0x02,
PHY_NOTIFY_ENABLE_SPINUP = 0x10,
};
enum pm8001_hba_info_flags {
PM8001F_INIT_TIME = (1U << 0),
PM8001F_RUN_TIME = (1U << 1),
};
/**
* Phy Status
*/
#define PHY_LINK_DISABLE 0x00
#define PHY_LINK_DOWN 0x01
#define PHY_STATE_LINK_UP_SPCV 0x2
#define PHY_STATE_LINK_UP_SPC 0x1
#endif