SMARTPQI

NAME

SYNOPSIS

DESCRIPTION

Supported ioctl/() operations

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
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.

FILES

Device nodes

SmartPQI-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

SmartPQI-specific disk attribute files in /sys

/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

VERSIONS

NOTES

Configuration

SEE ALSO

Documentation/ABI/testing/sysfs-bus-pci-devices-cciss in the Linux kernel source tree.  

COLOPHON

Index

NAME

SYNOPSIS

DESCRIPTION

Supported ioctl/() operations

Boot options

FILES

Device nodes

SmartPQI-specific host attribute files in /sys

SmartPQI-specific disk attribute files in /sys

VERSIONS

NOTES

Configuration

SEE ALSO

COLOPHON