linux-toradex.git/drivers/scsi/ses.c, branch v4.1.21

ses: Add power_status to SES device slot

2015-01-09T14:44:19+00:00

Add power_status to SES device slot, so we can power on/off the
HDDs behind the enclosure.

Check firmware status in ses_set_* before sending control pages to
firmware.

Signed-off-by: Song Liu 
Acked-by: Dan Williams 
Reviewed-by: Jens Axboe 
Cc: Hannes Reinecke 
Signed-off-by: Christoph Hellwig

ses: add reliable slot attribute

2015-01-09T14:44:19+00:00

The name provided by firmware is in a vendor specific format, publish
the slot number to have a reliable mechanism for identifying slots
across firmware implementations.  If the enclosure does not provide a
slot number fallback to the component number which is guaranteed unique,
and usually mirrors the slot number.

Cleaned up the unused ses_component.desc in the process.

Signed-off-by: Dan Williams 
Signed-off-by: Song Liu 
Reviewed-by: Jens Axboe 
Reviewed-by: Hannes Reinecke 
Signed-off-by: Christoph Hellwig

ses: add enclosure logical id

2015-01-09T14:44:18+00:00

Export the NAA logical id for the enclosure.  This is optionally
available from the sas_transport_class, but it is really a property of
the enclosure.

Signed-off-by: Dan Williams 
Signed-off-by: Song Liu 
Reviewed-by: Jens Axboe 
Cc: Hannes Reinecke 
Signed-off-by: Christoph Hellwig

ses: generate KOBJ_CHANGE on enclosure attach

2015-01-09T14:44:18+00:00

In support of a /dev/disk/by-slot populated with data from the enclosure
and ses modules udev needs notification when the new interface
files/links are available.  Otherwise, any udev rules specified for the
disk cannot assume that the enclosure topology has settled.

Signed-off-by: Dan Williams 
Signed-off-by: Song Liu 
Reviewed-by: Jens Axboe 
Reviewed-by: Hannes Reinecke 
Signed-off-by: Christoph Hellwig

ses: close potential registration race

2015-01-09T14:44:17+00:00

The slot and address fields have a small window of instability when
userspace can read them before initialization. Separate
enclosure_component
allocation from registration.

Signed-off-by: Dan Williams 
Signed-off-by: Song Liu 
Reviewed-by: Jens Axboe 
Cc: Hannes Reinecke 
Signed-off-by: Christoph Hellwig

scsi: remove scsi_driver owner field

2014-11-24T19:01:28+00:00

The driver core driver structure has grown an owner field and now
requires it to be set for all modular drivers.  Set it up for
all scsi_driver instances and get rid of the now superflous
scsi_driver owner field.

Signed-off-by: Christoph Hellwig 
Reported-by: Shane M Seymour 
Reviewed-by: Ewan D. Milne

[SCSI] ses: Use vpd information from scsi_device

2014-03-27T15:26:31+00:00

The scsi_device now has VPD page83 information attached, so
there is no need to query it again.

Signed-off-by: Hannes Reinecke 
Signed-off-by: James Bottomley

[SCSI] ses: requesting a fault indication

2011-06-29T17:14:25+00:00

Noticed that when the sysfs interface of the SCSI SES
driver was used to request a fault indication the LED
flashed but the buzzer didn't sound. So it was doing
what REQUEST IDENT (locate) should do.

Changelog:
   - fix the setting of REQUEST FAULT for the device slot
     and array device slot elements in the enclosure control
     diagnostic page
   - note the potentially defective code that reads the
     FAULT SENSED and FAULT REQUESTED bits from the enclosure
     status diagnostic page

The attached patch is against git/scsi-misc-2.6

Signed-off-by: Douglas Gilbert 
Cc: stable@kernel.org
Signed-off-by: James Bottomley

[SCSI] ses: add subenclosure support

2011-03-23T16:37:09+00:00

There have been many complaints that an enclosure with subenclosures
isn't attached to by the ses driver.   Until now, though, no-one had
been willing to provide access to one.

Subenclosures are added simply by flattening the tree (i.e. all
subenclosure devices show up under the one main device).  This may have
consequences if the naming is only unique per subenclosure, but that's a
bug for another day.  The tested array had no page 7, so no device
naming at all.  It also only had the disk devices on one of its
subenclosures (all the others had power, fans, temperature and various
sensors), so testing of this is fairly rudimentary.

Signed-off-by: James Bottomley

[SCSI] ses: show devices for enclosures with no page 7

2011-03-23T16:35:57+00:00

enclosure page 7 gives us the "pretty" names of the enclosure slots.
Without a page 7, we can still use the enclosure code as long as we
make up numeric names for the slots. Unfortunately, the current code
fails to add any devices because the check for page 10 is in the wrong
place if we have no page 7.  Fix it so that devices show up even if
the enclosure has no page 7.

Cc: stable@kernel.org
Signed-off-by: James Bottomley