драйвер Microsemi Smart Family SCSI (Microsemi Smart Family SCSI driver)
Имя (Name)
smartpqi - Microsemi Smart Family SCSI driver
Синопсис (Synopsis)
modprobe smartpqi [disable_device_id_wildcards={0|1}]
[disable_heartbeat={0|1}]
[disable_ctrl_shutdown={0|1}]
[lockup_action={none|reboot|panic}]
[expose_ld_first={0|1}] [hide_vsep={0|1}]
Описание (Description)
smartpqi is a SCSI driver for Microsemi Smart Family controllers.
Supported ioctl() operations
For compatibility with applications written for the cciss(4) and
hpsa(4) drivers, many, but not all of the ioctl(2) operations
supported by the hpsa driver are also supported by the smartpqi
driver. The data structures used by these operations are
described in the Linux kernel source file
include/linux/cciss_ioctl.h.
CCISS_DEREGDISK, CCISS_REGNEWDISK, CCISS_REGNEWD
These operations all do exactly the same thing, which is
to cause the driver to re-scan for new devices. This does
exactly the same thing as writing to the smartpqi-specific
host rescan attribute.
CCISS_GETPCIINFO
This operation returns the PCI domain, bus, device, and
function and "board ID" (PCI subsystem ID).
CCISS_GETDRIVVER
This operation returns the driver version in four bytes,
encoded as:
(major_version << 28) | (minor_version << 24) |
(release << 16) | revision
CCISS_PASSTHRU
Allows BMIC and CISS commands to be passed through to the
controller.
Boot options
disable_device_id_wildcards={0|1}
Disables support for device ID wildcards. The default
value is 0.
disable_heartbeat={0|1}
Disables support for the controller's heartbeat check.
This parameter is used for debugging purposes. The
default value is 0, leaving the controller's heartbeat
check active.
disable_ctrl_shutdown={0|1}
Disables support for shutting down the controller in the
event of a controller lockup. The default value is 0.
lockup_action={none|reboot|panic}
Specifies the action the driver takes when a controller
lockup is detected. The default action is none.
parameter action
─────────────────────────────────────────────
none take controller offline only
reboot reboot the system
panic panic the system
expose_ld_first={0|1}
This option enables support for exposing logical devices
to the operating system before physical devices. The
default value is 0.
hide_vsep={0|1}
This option enables disabling exposure of the virtual SEP
to the host. This is usually associated with direct
attached drives. The default value is 0.
Файлы (Files)
Device nodes
Logical drives are accessed via the SCSI disk driver (sd), tape
drives via the SCSI tape driver (st), and the RAID controller via
the SCSI generic driver (sg), with device nodes named /dev/sd*,
/dev/st*, and /dev/sg*, respectively.
[1mSmartPQI-specific host attribute files in /sys
/sys/class/scsi_host/host*/rescan
The host rescan attribute is a write-only attribute.
Writing to this attribute will cause the driver to scan
for new, changed, or removed devices (e.g., hot-plugged
tape drives, or newly configured or deleted logical
drives) and notify the SCSI mid-layer of any changes
detected. Usually this action is triggered automatically
by configuration changes, so the user should not normally
have to write to this file. Doing so may be useful when
hot-plugging devices such as tape drives or entire storage
boxes containing pre-configured logical drives.
/sys/class/scsi_host/host*/version
The host version attribute is a read-only attribute. This
attribute contains the driver version and the controller
firmware version.
For example:
$ cat /sys/class/scsi_host/host1/version
driver: 1.1.2-126
firmware: 1.29-112
/sys/class/scsi_host/host*/lockup_action
The host lockup_action attribute is a read/write
attribute. This attribute will cause the driver to
perform a specific action in the unlikely event that a
controller lockup has been detected. See OPTIONS above
for an explanation of the lockup_action values.
/sys/class/scsi_host/host*/driver_version
The driver_version attribute is read-only. This attribute
contains the smartpqi driver version.
For example:
$ cat /sys/class/scsi_host/host1/driver_version
1.1.2-126
/sys/class/scsi_host/host*/firmware_version
The firmware_version attribute is read-only. This
attribute contains the controller firmware version.
For example:
$ cat /sys/class/scsi_host/host1/firmware_version
1.29-112
/sys/class/scsi_host/host*/model
The model attribute is read-only. This attribute contains
the product identification string of the controller.
For example:
$ cat /sys/class/scsi_host/host1/model
1100-16i
/sys/class/scsi_host/host*/serial_number
The serial_number attribute is read-only. This attribute
contains the unique identification number of the
controller.
For example:
$ cat /sys/class/scsi_host/host1/serial_number
6A316373777
/sys/class/scsi_host/host*/vendor
The vendor attribute is read-only. This attribute
contains the vendor identification string of the
controller.
For example:
$ cat /sys/class/scsi_host/host1/vendor
Adaptec
[1mSmartPQI-specific disk attribute files in /sys
In the file specifications below, c stands for the number of the
appropriate SCSI controller, b is the bus number, t the target
number, and l is the logical unit number (LUN).
/sys/class/scsi_disk/c:b:t:l/device/raid_level
The raid_level attribute is read-only. This attribute
contains the RAID level of each logical drive.
For example:
$ cat /sys/class/scsi_disk/4:0:0:0/device/raid_level
RAID 0
/sys/class/scsi_disk/c:b:t:l/device/sas_address
The sas_address attribute is read-only. This attribute
contains the unique identifier of the disk.
For example:
$ cat /sys/class/scsi_disk/1:0:3:0/device/sas_address
0x5001173d028543a2
/sys/class/scsi_disk/c:b:t:l/device/ssd_smart_path_enabled
The ssd_smart_path_enabled attribute is read-only. This
attribute is for ioaccel-enabled volumes. (Ioaccel is an
alternative driver submission path that allows the driver
to send I/O requests directly to backend SCSI devices,
bypassing the controller firmware. This results in an
increase in performance. This method is used for HBA
disks and for logical volumes comprised of SSDs.)
Contains 1 if ioaccel is enabled for the volume and 0
otherwise.
For example:
$ cat /sys/class/scsi_disk/1:0:3:0/device/ssd_smart_path_enabled
0
Версии (Versions)
The smartpqi driver was added in Linux 4.9.
Примечание (Note)
Configuration
To configure a Microsemi Smart Family controller, refer to the
User Guide for the controller, which can be found by searching
for the specific controller at ⟨https://storage.microsemi.com/⟩.
Смотри также (See also)
cciss(4), hpsa(4), sd(4), st(4)
Documentation/ABI/testing/sysfs-bus-pci-devices-cciss in the
Linux kernel source tree.
