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sed-opal: add support flag for SUM in status ioctl

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Not every OPAL drive supports SUM (Single User Mode), so report this
information to userspace via the get-status ioctl so that we can adjust
the formatting options accordingly.
Tested on a kingston drive (which supports it) and a samsung one
(which does not).

Signed-off-by: Luca Boccassi <bluca@debian.org>
Link: https://lore.kernel.org/r/20230210010612.28729-1-luca.boccassi@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Luca Boccassi
2023-02-10 01:06:12 +00:00
committed by Jens Axboe
parent 0aa2988e4f
commit 9ec041ea40
2 changed files with 3 additions and 0 deletions
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include/uapi/linux/sed-opal.h
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@@ -144,6 +144,7 @@ struct opal_read_write_table {
#define OPAL_FL_LOCKED 0x00000008
#define OPAL_FL_MBR_ENABLED 0x00000010
#define OPAL_FL_MBR_DONE 0x00000020
#define OPAL_FL_SUM_SUPPORTED 0x00000040
struct opal_status {
__u32 flags;