85 lines
3.8 KiB
ReStructuredText
85 lines
3.8 KiB
ReStructuredText
.. 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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=================== ======= =======================================
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