Messages in this thread | | | Subject | Re: TRIM/UNMAP/DISCARD via ATA Passthrough | From | "Martin K. Petersen" <> | Date | Thu, 15 Sep 2016 12:07:20 -0400 |
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>>>>> "Jason" == Jason A Donenfeld <Jason@zx2c4.com> writes:
Jason,
>> How do they signal that they support the passthrough?
Jason> Through the usual SCSI ATA-passthrough interface, "SAT" (SCSI-ATA Jason> Command Translation) -- ATA PASS THROUGH SCSI (16) and ATA PASS Jason> THROUGH SCSI (12).
But how do they signal that ATA passthrough is possible? Is there an ATA Information VPD page? Is REPORT SUPPORTED OPERATION CODES supported?
We need really solid discovery data before we can entertain enabling something like this.
-- Martin K. Petersen Oracle Linux Engineering
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