SMARTPQI(4)                Linux Programmer's Manual               SMARTPQI(4)

       smartpqi - Microsemi Smart Family SCSI driver

       modprobe smartpqi [disable_device_id_wildcards={0|1}]
                         [expose_ld_first={0|1}] [hide_vsep={0|1}]

       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.

              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

              This operation Returns the PCI domain, bus, device and  function
              and "board ID" (PCI subsystem ID).

              This operation returns the driver version in four bytes, encoded

                  (major_version << 28) | (minor_version << 24) |
                          (release << 16) | revision

              Allows BMIC and CISS commands to be passed through to  the  con-

   Boot options
              Disables  support for device ID wildcards.  The default value is

              Disables support for the controller's heartbeat check.  This pa-
              rameter is used for debugging purposes.  The default value is 0,
              leaving the controller's heartbeat check active.

              Disables support for shutting down the controller in  the  event
              of a controller lockup.  The default value is 0.

              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

              This option enables support for exposing logical devices to  the
              operating  system before physical devices.  The default value is

              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.

   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.

   SmartPQI-specific host attribute files in /sys
              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 con-
              figured or deleted logical drives) and notify the SCSI mid-layer
              of any changes detected.  Usually this action is triggered auto-
              matically by configuration changes, so the user should not  nor-
              mally  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.

              The  host  version attribute is a read-only attribute.  This at-
              tribute contains the driver version and the controller  firmware

              For example:

                  $ cat /sys/class/scsi_host/host1/version
                  driver: 1.1.2-126
                  firmware: 1.29-112

              The  host  lockup_action  attribute  is  a read/write attribute.
              This attribute will cause the driver to perform a  specific  ac-
              tion in the unlikely event that a controller lockup has been de-
              tected.  See OPTIONS above for an explanation of the  lockup_ac-
              tion values.

              The  driver_version attribute is read-only.  This attribute con-
              tains the smartpqi driver version.

              For example:

                  $ cat /sys/class/scsi_host/host1/driver_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

              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

              The serial_number attribute is read-only.  This  attribute  con-
              tains the unique identification number of the controller.

              For example:

                  $ cat /sys/class/scsi_host/host1/serial_number

              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

   SmartPQI-specific disk attribute files in /sys
       In the file specifications below, c stands for the number of the appro-
       priate SCSI controller, b is the bus number, t the target number, and l
       is the logical unit number (LUN).

              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

              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

              The ssd_smart_path_enabled attribute is read-only.  This  attri-
              bute is for ioaccel-enabled volumes.  (Ioaccel is an alternative
              driver submission path that allows the driver to  send  I/O  re-
              quests  directly  to  backend  SCSI  devices, bypassing the con-
              troller firmware.  This results in an increase  in  performance.
              This  method  is used for HBA disks and for logical volumes com-
              prised of SSDs.)  Contains 1 if ioaccel is enabled for the  vol-
              ume and 0 otherwise.

              For example:

                  $ cat /sys/class/scsi_disk/1:0:3:0/device/ssd_smart_path_enabled

       The smartpqi driver was added in Linux 4.9.

       To  configure  a  Microsemi  Smart Family controller, refer to the User
       Guide for the controller, which can be found by searching for the  spe-
       cific controller at <>.

       cciss(4), hpsa(4), sd(4), st(4)

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

       This page is part of release 5.05 of the Linux  man-pages  project.   A
       description  of  the project, information about reporting bugs, and the
       latest    version    of    this    page,    can     be     found     at

Linux                             2019-10-10                       SMARTPQI(4)
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