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SCSI: hisi_raid: support SPxxx serial RAID/HBA controllers
Supported devices ================= =================== ======= ======================================= PCI ID (pci.ids) OEM Product =================== ======= ======================================= 19E5:3858 HUAWEI SP186-M-8i(HBA:8Ports) 19E5:3858 HUAWEI SP186-M-16i(HBA:16Ports) 19E5:3858 HUAWEI SP186-M-32i(HBA:32Ports) 19E5:3858 HUAWEI SP186-M-40i(HBA:40Ports) 19E5:3758 HUAWEI SP686C-M-16i(RAID:16Ports,2G cache) 19E5:3758 HUAWEI SP686C-M-16i(RAID:16Ports,4G cache) 19E5:3758 HUAWEI SP686C-MH-32i(RAID:32Ports,4G cache) 19E5:3758 HUAWEI SP686C-M-40i(RAID:40Ports,2G cache) 19E5:3758 HUAWEI SP686C-M-40i(RAID:40Ports,4G cache) =================== ======= ======================================= Link: https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel/pulls/373 Link: https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel/pulls/380 Link: https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel/pulls/387 [ Ming Wang: Convert files to Unix line endings. ] Co-developed-by: Ming Wang <wangming01@loongson.cn> Signed-off-by: Ming Wang <wangming01@loongson.cn> Signed-off-by: hufangchen <hufangchen@huawei.com> [ WangYuli: Add commit message and support COMPILE_TEST. ] Co-developed-by: WangYuli <wangyuli@uniontech.com> Signed-off-by: WangYuli <wangyuli@uniontech.com>
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‎Documentation/scsi/hisi_raid.rst‎

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.. SPDX-License-Identifier: GPL-2.0
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==============================================
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hisi_raid - HUAWEI SCSI RAID Controller driver
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==============================================
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This file describes the hisi_raid SCSI driver for HUAWEI
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RAID controllers. The hisi_raid driver is the first
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generation RAID driver.
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For hisi_raid controller support, enable the hisi_raid driver
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when configuring the kernel.
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hisi_raid specific entries in /sys
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=================================
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hisi_raid host attributes
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------------------------
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- /sys/class/scsi_host/host*/csts_pp
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- /sys/class/scsi_host/host*/csts_shst
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- /sys/class/scsi_host/host*/csts_cfs
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- /sys/class/scsi_host/host*/csts_rdy
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- /sys/class/scsi_host/host*/fw_version
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The host csts_pp attribute is a read only attribute. This attribute
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indicates whether the controller is processing commands. If this attribute
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is set to ‘1’, then the controller is processing commands normally. If
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this attribute is cleared to ‘0’, then the controller has temporarily stopped
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processing commands in order to handle an event (e.g., firmware activation).
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The host csts_shst attribute is a read only attribute. This attribute
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indicates status of shutdown processing.The shutdown status values are defined
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as:
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====== ==============================
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Value Definition
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====== ==============================
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00b Normal operation
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01b Shutdown processing occurring
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10b Shutdown processing complete
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11b Reserved
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====== ==============================
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The host csts_cfs attribute is a read only attribute. This attribute is set to
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’1’ when a fatal controller error occurred that could not be communicated in the
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appropriate Completion Queue. This bit is cleared to ‘0’ when a fatal controller
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error has not occurred.
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The host csts_rdy attribute is a read only attribute. This attribute is set to
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‘1’ when the controller is ready to process submission queue entries.
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The fw_version attribute is read-only and will return the driver version and the
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controller firmware version.
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hisi_raid scsi device attributes
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------------------------------
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- /sys/class/scsi_device/X\:X\:X\:X/device/raid_level
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- /sys/class/scsi_device/X\:X\:X\:X/device/raid_state
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- /sys/class/scsi_device/X\:X\:X\:X/device/raid_resync
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The device raid_level attribute is a read only attribute. This attribute indicates
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RAID level of scsi device(will dispaly "NA" if scsi device is not virtual disk type).
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The device raid_state attribute is read-only and indicates RAID status of scsi
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device(will dispaly "NA" if scsi device is not virtual disk type).
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The device raid_resync attribute is read-only and indicates RAID rebuild processing
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of scsi device(will dispaly "NA" if scsi device is not virtual disk type).
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Supported devices
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=================
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=================== ======= =======================================
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PCI ID (pci.ids) OEM Product
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=================== ======= =======================================
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19E5:3858 HUAWEI SP186-M-8i(HBA:8Ports)
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19E5:3858 HUAWEI SP186-M-16i(HBA:16Ports)
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19E5:3858 HUAWEI SP186-M-32i(HBA:32Ports)
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19E5:3858 HUAWEI SP186-M-40i(HBA:40Ports)
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19E5:3758 HUAWEI SP686C-M-16i(RAID:16Ports,2G cache)
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19E5:3758 HUAWEI SP686C-M-16i(RAID:16Ports,4G cache)
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19E5:3758 HUAWEI SP686C-MH-32i(RAID:32Ports,4G cache)
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19E5:3758 HUAWEI SP686C-M-40i(RAID:40Ports,2G cache)
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19E5:3758 HUAWEI SP686C-M-40i(RAID:40Ports,4G cache)
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=================== ======= =======================================

‎MAINTAINERS‎

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F: Documentation/ABI/testing/debugfs-hisi-zip
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F: drivers/crypto/hisilicon/zip/
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HISI_RAID SCSI RAID DRIVERS
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M: Fangchen Hu <hufangchen@huawei.com>
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L: kernel@openeuler.org
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S: Maintained
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F: Documentation/scsi/hisi_raid.rst
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F: drivers/scsi/hisi_raid/
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HMM - Heterogeneous Memory Management
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M: Jérôme Glisse <jglisse@redhat.com>
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L: linux-mm@kvack.org

‎drivers/scsi/Kconfig‎

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source "drivers/scsi/mpi3mr/Kconfig"
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source "drivers/scsi/leapioraid/Kconfig"
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source "drivers/scsi/smartpqi/Kconfig"
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source "drivers/scsi/hisi_raid/Kconfig"
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config SCSI_HPTIOP
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tristate "HighPoint RocketRAID 3xxx/4xxx Controller support"

‎drivers/scsi/Makefile‎

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obj-$(CONFIG_MEGARAID_NEWGEN) += megaraid/
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obj-$(CONFIG_MEGARAID_SAS) += megaraid/
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obj-$(CONFIG_SCSI_MPT3SAS) += mpt3sas/
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obj-$(CONFIG_SCSI_HISI_RAID) += hisi_raid/
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obj-$(CONFIG_SCSI_MPI3MR) += mpi3mr/
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obj-$(CONFIG_SCSI_LEAPIORAID) += leapioraid/
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obj-$(CONFIG_SCSI_ACARD) += atp870u.o

‎drivers/scsi/hisi_raid/Kconfig‎

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#
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# Kernel configuration file for the hisi_raid
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#
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config SCSI_HISI_RAID
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tristate "Huawei Hisi_Raid Adapter"
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depends on PCI && SCSI
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select BLK_DEV_BSGLIB
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depends on ARM64 || X86_64 || COMPILE_TEST
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help
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This driver supports hisi_raid SPxx serial RAID controller, which has
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PCI Express Gen4 interface with host and supports SAS/SATA HDD/SSD.
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To compile this driver as a module, choose M here: the module will
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be called hisi_raid.

‎drivers/scsi/hisi_raid/Makefile‎

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#
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# Makefile for the hisi_raid drivers.
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#
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obj-$(CONFIG_SCSI_HISI_RAID) += hiraid.o
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hiraid-objs := hiraid_main.o

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