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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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99c72ebceb
This is a followup to a patch provided by Jack Wang on September 21 2011. After increasing the CAN_QUEUE to 510 in pm8001 we discovered some performance degredation from time to time. We needed to increase the MPI queue to compensate and ensure we never hit that limit. We also needed to double the margin to support event and administrivial commands that take from the pool resulting in an occasional largely unproductive command completion with soft error to the caller when the command pool is overloaded temporarily. Signed-off-by: Mark Salyzyn <mark_salyzyn@xyratex.com> Acked-by: Jack Wang <jack_wang@usish.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
114 lines
3.6 KiB
C
114 lines
3.6 KiB
C
/*
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* PMC-Sierra SPC 8001 SAS/SATA based host adapters driver
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*
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* Copyright (c) 2008-2009 USI Co., Ltd.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*
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*/
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#ifndef _PM8001_DEFS_H_
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#define _PM8001_DEFS_H_
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enum chip_flavors {
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chip_8001,
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};
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#define USI_MAX_MEMCNT 9
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#define PM8001_MAX_DMA_SG SG_ALL
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enum phy_speed {
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PHY_SPEED_15 = 0x01,
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PHY_SPEED_30 = 0x02,
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PHY_SPEED_60 = 0x04,
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};
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enum data_direction {
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DATA_DIR_NONE = 0x0, /* NO TRANSFER */
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DATA_DIR_IN = 0x01, /* INBOUND */
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DATA_DIR_OUT = 0x02, /* OUTBOUND */
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DATA_DIR_BYRECIPIENT = 0x04, /* UNSPECIFIED */
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};
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enum port_type {
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PORT_TYPE_SAS = (1L << 1),
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PORT_TYPE_SATA = (1L << 0),
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};
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/* driver compile-time configuration */
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#define PM8001_MAX_CCB 512 /* max ccbs supported */
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#define PM8001_MPI_QUEUE 1024 /* maximum mpi queue entries */
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#define PM8001_MAX_INB_NUM 1
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#define PM8001_MAX_OUTB_NUM 1
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#define PM8001_CAN_QUEUE 508 /* SCSI Queue depth */
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/* unchangeable hardware details */
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#define PM8001_MAX_PHYS 8 /* max. possible phys */
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#define PM8001_MAX_PORTS 8 /* max. possible ports */
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#define PM8001_MAX_DEVICES 1024 /* max supported device */
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enum memory_region_num {
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AAP1 = 0x0, /* application acceleration processor */
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IOP, /* IO processor */
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CI, /* consumer index */
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PI, /* producer index */
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IB, /* inbound queue */
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OB, /* outbound queue */
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NVMD, /* NVM device */
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DEV_MEM, /* memory for devices */
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CCB_MEM, /* memory for command control block */
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};
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#define PM8001_EVENT_LOG_SIZE (128 * 1024)
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/*error code*/
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enum mpi_err {
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MPI_IO_STATUS_SUCCESS = 0x0,
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MPI_IO_STATUS_BUSY = 0x01,
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MPI_IO_STATUS_FAIL = 0x02,
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};
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/**
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* Phy Control constants
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*/
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enum phy_control_type {
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PHY_LINK_RESET = 0x01,
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PHY_HARD_RESET = 0x02,
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PHY_NOTIFY_ENABLE_SPINUP = 0x10,
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};
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enum pm8001_hba_info_flags {
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PM8001F_INIT_TIME = (1U << 0),
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PM8001F_RUN_TIME = (1U << 1),
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};
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#endif
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