Ronnie Sahlberg 864bf81c56 TESTS: Test that WRITESAME10/16 unmap can handle big number of logical blocks when unmapping. ...

If  BLockLimits->MaxWriteSameLength is 0 (no limit) or >=256
then verify that both WRITESAME10 and WRITESAME16 can unmap with a
number of blocks == 2 byte field.
If not, then verify that a 256 block unmap results in INVALID FIELD IN CDB

If  BLockLimits->MaxWriteSameLength is 0 (no limit) or >=65536
then verify that WRITESAME16 can unmap with a
number of blocks == 3 byte field.
If not, then verify that a 65536 block unmap results in INVALID FIELD IN CDB

From discussions on linux-scsi there are devices that support WRITESAME16
but where the implementation only looks at the low 2 bytes of the 4 bytes for
num-blocks in the CDB.
This added test aims to find and flag such devices.

2013-05-15 19:50:41 -07:00

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