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Re: TRIM/UNMAP/DISCARD via ATA Passthrough

From "Martin K. Petersen" <martin.petersen@oracle.com>
Newsgroups linux.kernel
Subject Re: TRIM/UNMAP/DISCARD via ATA Passthrough
Date 2016-09-15 18:10 +0200
Message-ID <shHoB-Ln-3@gated-at.bofh.it> (permalink)
References <sgECt-7at-29@gated-at.bofh.it> <shngd-4l1-21@gated-at.bofh.it> <shH5f-o6-1@gated-at.bofh.it>
Organization Oracle Corporation

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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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Thread

TRIM/UNMAP/DISCARD via ATA Passthrough "Jason A. Donenfeld" <Jason@zx2c4.com> - 2016-09-12 21:00 +0200
  Re: TRIM/UNMAP/DISCARD via ATA Passthrough Henrique de Moraes Holschuh <hmh@hmh.eng.br> - 2016-09-13 19:50 +0200
  Re: TRIM/UNMAP/DISCARD via ATA Passthrough "Martin K. Petersen" <martin.petersen@oracle.com> - 2016-09-14 20:40 +0200
    Re: TRIM/UNMAP/DISCARD via ATA Passthrough "Jason A. Donenfeld" <Jason@zx2c4.com> - 2016-09-15 17:50 +0200
      Re: TRIM/UNMAP/DISCARD via ATA Passthrough "Martin K. Petersen" <martin.petersen@oracle.com> - 2016-09-15 18:10 +0200
        Re: TRIM/UNMAP/DISCARD via ATA Passthrough "Jason A. Donenfeld" <Jason@zx2c4.com> - 2016-09-15 23:00 +0200
          Re: TRIM/UNMAP/DISCARD via ATA Passthrough Hannes Reinecke <hare@suse.de> - 2016-09-16 13:20 +0200
            Re: TRIM/UNMAP/DISCARD via ATA Passthrough "Austin S. Hemmelgarn" <ahferroin7@gmail.com> - 2016-09-16 18:00 +0200
              Re: TRIM/UNMAP/DISCARD via ATA Passthrough James Bottomley <James.Bottomley@HansenPartnership.com> - 2016-09-16 18:30 +0200
                Re: TRIM/UNMAP/DISCARD via ATA Passthrough "Austin S. Hemmelgarn" <ahferroin7@gmail.com> - 2016-09-16 19:10 +0200
                Re: TRIM/UNMAP/DISCARD via ATA Passthrough "Jason A. Donenfeld" <Jason@zx2c4.com> - 2016-09-17 03:30 +0200
                Re: TRIM/UNMAP/DISCARD via ATA Passthrough James Bottomley <James.Bottomley@HansenPartnership.com> - 2016-09-17 07:20 +0200
                Re: TRIM/UNMAP/DISCARD via ATA Passthrough "Austin S. Hemmelgarn" <ahferroin7@gmail.com> - 2016-09-19 15:10 +0200

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