diff options
| author | Kevin Barnett <[email protected]> | 2021-09-28 18:54:40 -0500 |
|---|---|---|
| committer | Martin K. Petersen <[email protected]> | 2021-10-05 00:13:15 -0400 |
| commit | d4dc6aea93cb40f454e3a4d0eb139633874d0f72 (patch) | |
| tree | e9a1287eab06394bd118f9382e2ec2a387b409b8 /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | 987d35605b7e82745bf69104611725d6505ed5a3 (diff) | |
scsi: smartpqi: Fix duplicate device nodes for tape changers
Stop the OS from re-discovering multiple LUNs for tape drive and medium
changer.
Duplicate device nodes for Ultrium tape drive and medium changer are being
created.
The Ultrium tape drive is a multi-LUN SCSI target. It presents a LUN for
the tape drive and a 2nd LUN for the medium changer. Our controller FW
lists both LUNs in the RPL results.
As a result, the smartpqi driver exposes both devices to the OS. Then the
OS does its normal device discovery via the SCSI REPORT LUNS command, which
causes it to re-discover both devices a 2nd time, which results in the
duplicate device nodes.
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Scott Benesh <[email protected]>
Reviewed-by: Scott Teel <[email protected]>
Reviewed-by: Mike McGowen <[email protected]>
Acked-by: John Donnelly <[email protected]>
Signed-off-by: Kevin Barnett <[email protected]>
Signed-off-by: Don Brace <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
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