[PATCH] scsi: Document generic scsi device attributes

Stephen M. Cameron
2011-08-17T18:21:06Z

From: Stephen M. Cameron <scameron@beardog.cce.hp.com>

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
---
Documentation/ABI/testing/sysfs-class-scsi_devices | 123 ++++++++++++++++++++
1 files changed, 123 insertions(+), 0 deletions(-)
create mode 100644 Documentation/ABI/testing/sysfs-class-scsi_devices

diff --git a/Documentation/ABI/testing/sysfs-class-scsi_devices b/Documentation/ABI/testing/sysfs-class-scsi_devices
new file mode 100644
index 0000000..ad2d36b
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-scsi_devices
@@ -0,0 +1,123 @@
+What: /sys/class/scsi_device/..../device/device_blocked
+Date: December, 2002
+KernelVersion: Unknown
+Contact: James Bottomley <James.Bottomley@HansenPartnership.com>
+Description:
+ This read only integer attribute indicates whether the
+ device is blocked. A non-zero value indicates the device
+ is blocked, zero indicates the device is not blocked.
+
+What: /sys/class/scsi_device/..../device/type
+Date: December, 2002
+KernelVersion: Unknown
+Contact: James Bottomley <James.Bottomley@HansenPartnership.com>
+Description:
+ This read only decimal integer value indicates the
+ SCSI device type.
+
+What: /sys/class/scsi_device/..../device/scsi_level
+Date: January, 2003
+KernelVersion: Unknown
+Contact: James Bottomley <James.Bottomley@HansenPartnership.com>
+Description:
+ This read only decimal integer value indicates the
+ SCSI revision level the device claims to support.
+
+What: /sys/class/scsi_device/..../device/vendor
+Date: December, 2002
+KernelVersion: Unknown
+Contact: James Bottomley <James.Bottomley@HansenPartnership.com>
+Description:
+ This read only string attribute contains the vendor of the SCSI
+ device.
+
+What: /sys/class/scsi_device/..../device/model
+Date: December 2002
+KernelVersion: Unknown
+Contact: James Bottomley <James.Bottomley@HansenPartnership.com>
+Description:
+ This read only string attribute contains the model of the SCSI
+ device.
+
+What: /sys/class/scsi_device/..../device/rev
+Date: December, 2002
+KernelVersion: Unknown
+Contact: James Bottomley <James.Bottomley@HansenPartnership.com>
+Description:
+ This read only string attribute contains the product revision
+ of the SCSI device.
+
+What: /sys/class/scsi_device/..../device/rescan
+Date: March, 2003
+KernelVersion: Unknown
+Contact: James Bottomley <James.Bottomley@HansenPartnership.com>
+Description:
+
+What: /sys/class/scsi_device/..../device/delete
+Date: August, 2003
+KernelVersion: Unknown
+Contact: James Bottomley <James.Bottomley@HansenPartnership.com>
+Description:
+ Writing to this write only attribute causes the SCSI device to
+ be removed from the SCSI midlayer.
+
+What: /sys/class/scsi_device/..../device/state
+Date: April, 2004
+KernelVersion: Unknown
+Contact: James Bottomley <James.Bottomley@HansenPartnership.com>
+Description:
+ This read/write string attribute allows setting or retrieving
+ the current state of the SCSI device. Possible values are
+ "created", "running", "cancel", "deleted", "quiesce", "offline",
+ "blocked" and "created-blocked"
+
+What: /sys/class/scsi_device/..../device/timeout
+Date: May, 2004
+KernelVersion: Unknown
+Contact: James Bottomley <James.Bottomley@HansenPartnership.com>
+Description:
+ This read/write decimal integer attribute contains the number
+ of seconds which may elapse after sending a command to the
+ device before that command is considered to have timed out.
+
+What: /sys/class/scsi_device/..../device/iocounterbits
+Date: March, 2005
+KernelVersion: Unknown
+Contact: James Bottomley <James.Bottomley@HansenPartnership.com>
+Description:
+ This read only integer value shows the number of bits
+ used to represent the various I/O counters.
+
+What: /sys/class/scsi_device/..../device/iorequest_cnt
+Date: March, 2005
+KernelVersion: Unknown
+Contact: James Bottomley <James.Bottomley@HansenPartnership.com>
+Description:
+ This read only integer value indicates how many I/O requests
+ have been submitted to the SCSI device.
+
+What: /sys/class/scsi_device/..../device/iodone_cnt
+Date: March, 2005
+KernelVersion: Unknown
+Contact: James Bottomley <James.Bottomley@HansenPartnership.com>
+Description:
+ This read only integer value indicates how many I/O requests
+ have been completed by the SCSI device.
+
+What: /sys/class/scsi_device/..../device/ioerr_cnt
+Date: March, 2005
+KernelVersion: Unknown
+Contact: James Bottomley <James.Bottomley@HansenPartnership.com>
+Description:
+ This read only integer value indicates how many I/O requests
+ have been completed with errors by the SCSI device.
+
+What: /sys/class/scsi_device/..../device/modalias
+Date: April, 2007
+KernelVersion: Unknown
+Contact: James Bottomley <James.Bottomley@HansenPartnership.com>
+Description:
+ This read only string value contains a string of the form
+ "scsi:t-0xXX" where "XX" are two hex digits representing the
+ SCSI device type. See also the "type" attribute.
+