linux-toradex.git/include/uapi/linux/sed-opal.h, branch v5.16-rc3

block: sed-opal: Add support to read/write opal tables generically

2019-11-04T14:11:31+00:00

This feature gives the user RW access to any opal table with admin1
authority. The flags described in the new structure determines if the user
wants to read/write the data. Flags are checked for valid values in
order to allow future features to be added to the ioctl.

The user can provide the desired table's UID. Also, the ioctl provides a
size and offset field and internally will loop data accesses to return
the full data block. Read overrun is prevented by the initiator's
sec_send_recv() backend. The ioctl provides a private field with the
intention to accommodate any future expansions to the ioctl.

Reviewed-by: Scott Bauer 
Reviewed-by: Jon Derrick 
Signed-off-by: Revanth Rajashekar 
Signed-off-by: Jens Axboe

block: sed-opal: ioctl for writing to shadow mbr

2019-06-29T16:33:57+00:00

Allow modification of the shadow mbr. If the shadow mbr is not marked as
done, this data will be presented read only as the device content. Only
after marking the shadow mbr as done and unlocking a locking range the
actual content is accessible.

Co-authored-by: David Kozub 
Signed-off-by: Jonas Rabenstein 
Signed-off-by: David Kozub 
Reviewed-by: Scott Bauer 
Reviewed-by: Jon Derrick 
Signed-off-by: Jens Axboe

block: sed-opal: add ioctl for done-mark of shadow mbr

2019-06-29T16:31:33+00:00

Enable users to mark the shadow mbr as done without completely
deactivating the shadow mbr feature. This may be useful on reboots,
when the power to the disk is not disconnected in between and the shadow
mbr stores the required boot files. Of course, this saves also the
(few) commands required to enable the feature if it is already enabled
and one only wants to mark the shadow mbr as done.

Co-authored-by: David Kozub 
Signed-off-by: Jonas Rabenstein 
Signed-off-by: David Kozub 
Reviewed-by: Christoph Hellwig 
Reviewed by: Scott Bauer 
Reviewed-by: Jon Derrick 
Signed-off-by: Jens Axboe

block: sed-opal: PSID reverttper capability

2019-06-29T15:40:30+00:00

PSID is a 32 character password printed on the drive label,
to prove its physical access. This PSID reverttper function
is very useful to regain the control over the drive when it
is locked and the user can no longer access it because of some
failures. However, *all the data on the drive is completely
erased*. This method is advisable only when the user is exhausted
of all other recovery methods.

PSID capabilities are described in:
https://trustedcomputinggroup.org/wp-content/uploads/TCG_Storage-Opal_Feature_Set_PSID_v1.00_r1.00.pdf

Signed-off-by: Revanth Rajashekar 
Signed-off-by: Jens Axboe

sed-opal.h: remove redundant licence boilerplate

2019-04-30T22:12:00+00:00

The file already has the correct SPDX header.

Reviewed-by: Chaitanya Kulkarni 
Signed-off-by: Christoph Hellwig 
Signed-off-by: Jens Axboe

block: sed-opal: fix typos and formatting

2019-04-06T17:09:12+00:00

This should make no change in functionality.
The formatting changes were triggered by checkpatch.pl.

Reviewed-by: Scott Bauer 
Reviewed-by: Jon Derrick 
Reviewed-by: Christoph Hellwig 
Signed-off-by: David Kozub 
Signed-off-by: Jens Axboe

License cleanup: add SPDX license identifier to uapi header files with a license

2017-11-02T10:20:11+00:00

Many user space API headers have licensing information, which is either
incomplete, badly formatted or just a shorthand for referring to the
license under which the file is supposed to be.  This makes it hard for
compliance tools to determine the correct license.

Update these files with an SPDX license identifier.  The identifier was
chosen based on the license information in the file.

GPL/LGPL licensed headers get the matching GPL/LGPL SPDX license
identifier with the added 'WITH Linux-syscall-note' exception, which is
the officially assigned exception identifier for the kernel syscall
exception:

   NOTE! This copyright does *not* cover user programs that use kernel
   services by normal system calls - this is merely considered normal use
   of the kernel, and does *not* fall under the heading of "derived work".

This exception makes it possible to include GPL headers into non GPL
code, without confusing license compliance tools.

Headers which have either explicit dual licensing or are just licensed
under a non GPL license are updated with the corresponding SPDX
identifier and the GPLv2 with syscall exception identifier.  The format
is:
        ((GPL-2.0 WITH Linux-syscall-note) OR SPDX-ID-OF-OTHER-LICENSE)

SPDX license identifiers are a legally binding shorthand, which can be
used instead of the full boiler plate text.  The update does not remove
existing license information as this has to be done on a case by case
basis and the copyright holders might have to be consulted. This will
happen in a separate step.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.  See the previous patch in this series for the
methodology of how this patch was researched.

Reviewed-by: Kate Stewart 
Reviewed-by: Philippe Ombredanne 
Reviewed-by: Thomas Gleixner 
Signed-off-by: Greg Kroah-Hartman

uapi: sed-opal fix IOW for activate lsp to use correct struct

2017-02-15T02:47:16+00:00

The IOC_OPAL_ACTIVATE_LSP took the wrong strcure which would
give us the wrong size when using _IOC_SIZE, switch it to the
right structure.

Fixes: 058f8a2 ("Include: Uapi: Add user ABI for Sed/Opal")

Signed-off-by: Scott Bauer 
Signed-off-by: Jens Axboe

Fix SED-OPAL UAPI structs to prevent 32/64 bit size differences.

2017-02-07T00:45:29+00:00

This patch is a quick fixup of the user structures that will prevent
the structures from being different sizes on 32 and 64 bit archs.
Taking this fix will allow us to *NOT* have to do compat ioctls for
the sed code.

Signed-off-by: Scott Bauer 
Fixes: 19641f2d7674 ("Include: Uapi: Add user ABI for Sed/Opal")
Signed-off-by: Jens Axboe

Include: Uapi: Add user ABI for Sed/Opal

2017-02-06T16:44:17+00:00

Signed-off-by: Scott Bauer 
Signed-off-by: Rafael Antognolli 
Reviewed-by: Christoph Hellwig 
Signed-off-by: Jens Axboe