scsi: smartpqi: Fix AIO retry marker cleared by SCSI core between dispatches.

On recent Linux kernels the driver can enter a retry loop on the AIO fast
path when a request is retried, looping until timeout.  A diagnostic path
that takes a physical drive offline on AIO-bypass failure is also never
entered on affected kernels.

Register a per-command initialization callback with the SCSI core. Its
presence causes the core to skip the per-dispatch clear, so the retry
marker now survives across the requeue and the AIO-to-RAID fallback
proceeds as intended. The driver takes over the marker's lifetime: it is
zeroed at tag allocation, preserved across the retry requeue so the error
path can act on it, and cleared on terminal completion so the tag starts
clean on its next use.

Fixes: dce5c4afd035 ("scsi: core: Clear driver private data when retrying request")
Co-developed-by: Mike McGowen <mike.mcgowen@microchip.com>
Signed-off-by: Mike McGowen <mike.mcgowen@microchip.com>
Acked-by: Don Brace <don.brace@microchip.com>
Signed-off-by: David Strahan <david.strahan@microchip.com>
Link: https://lore.kernel.org/linux-scsi/20260722220401.6357-1-david.strahan@microchip.com/
Link: https://patch.msgid.link/20260722220401.6357-2-david.strahan@microchip.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

0 files changed, 0 insertions, 0 deletions