tree a5a2bab717c46957f4796dc5da003966da7d9ff7
parent 8fb9a64eb6e6fe502187c154434729871d9e5578
author Finn Thain <fthain@telegraphics.com.au> 1560043151 +1000
committer Martin K. Petersen <martin.petersen@oracle.com> 1561059423 -0400

scsi: mac_scsi: Treat Last Byte Sent time-out as failure

A system bus error during a PDMA send operation can result in bytes being
lost. Theoretically that could cause the target to remain in DATA OUT phase
and the initiator (expecting a phase change) would time-out waiting for the
Last Byte Sent flag. Should that happen, fail the transfer so the core
driver will stop using PDMA with this target.

Cc: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Tested-by: Stan Johnson <userm57@yahoo.com>
Tested-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>