+.. SPDX-License-Identifier: GPL-2.0
+=====================================
SMARTPQI - Microsemi Smart PQI Driver
------------------------------------------
+=====================================
This file describes the smartpqi SCSI driver for Microsemi
(http://www.microsemi.com) PQI controllers. The smartpqi driver
when configuring the kernel.
For more information on the PQI Queuing Interface, please see:
-http://www.t10.org/drafts.htm
-http://www.t10.org/members/w_pqi2.htm
-Supported devices:
-------------------
+- http://www.t10.org/drafts.htm
+- http://www.t10.org/members/w_pqi2.htm
+
+Supported devices
+=================
<Controller names to be added as they become publicly available.>
smartpqi specific entries in /sys
------------------------------
+=================================
- smartpqi host attributes:
- -------------------------
- /sys/class/scsi_host/host*/rescan
- /sys/class/scsi_host/host*/driver_version
+smartpqi host attributes
+------------------------
+ - /sys/class/scsi_host/host*/rescan
+ - /sys/class/scsi_host/host*/driver_version
The host rescan attribute is a write only attribute. Writing to this
attribute will trigger the driver to scan for new, changed, or removed
The version attribute is read-only and will return the driver version
and the controller firmware version.
- For example:
+ For example::
+
driver: 0.9.13-370
firmware: 0.01-522
- smartpqi sas device attributes
- ------------------------------
+smartpqi sas device attributes
+------------------------------
HBA devices are added to the SAS transport layer. These attributes are
automatically added by the SAS transport layer.
/sys/class/sas_device/end_device-X:X/enclosure_identifier
/sys/class/sas_device/end_device-X:X/scsi_target_id
-smartpqi specific ioctls:
--------------------------
+smartpqi specific ioctls
+========================
For compatibility with applications written for the cciss protocol.
- CCISS_DEREGDISK
- CCISS_REGNEWDISK
- CCISS_REGNEWD
-
- The above three ioctls all do exactly the same thing, which is to cause the driver
- to rescan for new devices. This does exactly the same thing as writing to the
- smartpqi specific host "rescan" attribute.
+ CCISS_DEREGDISK, CCISS_REGNEWDISK, CCISS_REGNEWD
+ The above three ioctls all do exactly the same thing, which is to cause the driver
+ to rescan for new devices. This does exactly the same thing as writing to the
+ smartpqi specific host "rescan" attribute.
CCISS_GETPCIINFO
-
Returns PCI domain, bus, device and function and "board ID" (PCI subsystem ID).
CCISS_GETDRIVVER
+ Returns driver version in three bytes encoded as::
- Returns driver version in three bytes encoded as:
- (DRIVER_MAJOR << 28) | (DRIVER_MINOR << 24) | (DRIVER_RELEASE << 16) | DRIVER_REVISION;
+ (DRIVER_MAJOR << 28) | (DRIVER_MINOR << 24) | (DRIVER_RELEASE << 16) | DRIVER_REVISION;
CCISS_PASSTHRU
-
Allows "BMIC" and "CISS" commands to be passed through to the Smart Storage Array.
These are used extensively by the SSA Array Configuration Utility, SNMP storage
agents, etc.
-