12 Dec, 2015

1 commit

  • KASAN found that our additional element processing scripts drop off
    the end of the VPD page into unallocated space. The reason is that
    not every element has additional information but our traversal
    routines think they do, leading to them expecting far more additional
    information than is present. Fix this by adding a gate to the
    traversal routine so that it only processes elements that are expected
    to have additional information (list is in SES-2 section 6.1.13.1:
    Additional Element Status diagnostic page overview)

    Reported-by: Pavel Tikhomirov
    Tested-by: Pavel Tikhomirov
    Cc: stable@vger.kernel.org
    Signed-off-by: James Bottomley

    James Bottomley
     

09 Jan, 2015

4 commits

  • 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

    Song Liu
     
  • 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

    Dan Williams
     
  • 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

    Dan Williams
     
  • 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

    Dan Williams
     

10 Dec, 2009

1 commit

  • Based on patch originally by Jeff Mahoney

    enclosure_status is expected to be a NULL terminated array of strings
    but isn't actually NULL terminated. When writing an invalid value to
    /sys/class/enclosure/.../.../status, it goes off the end of the array
    and Oopses.

    Fix by making the assumption true and adding NULL at the end.

    Reported-by: Artur Wojcik
    Signed-off-by: James Bottomley

    James Bottomley
     

23 Aug, 2009

2 commits

  • Right at the moment, hot removal of a device within an enclosure does
    nothing (because the intf_remove only copes with enclosure removal not
    with component removal). Fix this by adding a function to remove the
    component. Also needed to fix the prototype of
    enclosure_remove_device, since we know the device we've removed but
    not the internal component number

    Signed-off-by: James Bottomley
    Signed-off-by: James Bottomley

    James Bottomley
     
  • In a situation either with expanders or with multiple enclosure
    devices, hot add doesn't always work. This is because we try to find
    a single enclosure device attached to the host. Fix this by looping
    over all enclosure devices attached to the host and also by making the
    find loop recognise that the enclosure devices may be expander remote
    (i.e. not parented by the host).

    Signed-off-by: James Bottomley
    Signed-off-by: James Bottomley

    James Bottomley
     

20 Apr, 2008

1 commit


08 Feb, 2008

1 commit