scsi: st: Restore some drive settings after reset

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[ Upstream commit 7081dc75df ]

Some of the allowed operations put the tape into a known position to
continue operation assuming only the tape position has changed.  But reset
sets partition, density and block size to drive default values. These
should be restored to the values before reset.

Normally the current block size and density are stored by the drive.  If
the settings have been changed, the changed values have to be saved by the
driver across reset.

Signed-off-by: Kai Mäkisara <Kai.Makisara@kolumbus.fi>
Link: https://lore.kernel.org/r/20250120194925.44432-2-Kai.Makisara@kolumbus.fi
Reviewed-by: John Meneghini <jmeneghi@redhat.com>
Tested-by: John Meneghini <jmeneghi@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Kai Mäkisara 2025-01-20 21:49:22 +02:00 • committed by Greg Kroah-Hartman

parent 1960bb56a9

commit 32bcf54138

2 changed files with 23 additions and 3 deletions

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24

drivers/scsi/st.c

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2

drivers/scsi/st.h

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