linux-kernel - Re: TRIM/UNMAP/DISCARD via ATA Passthrough

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Date:   Wed, 14 Sep 2016 14:37:38 -0400
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     "Jason A. Donenfeld" <Jason@...c4.com>
Cc:     linux-scsi@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: TRIM/UNMAP/DISCARD via ATA Passthrough

>>>>> "Jason" == Jason A Donenfeld <Jason@...c4.com> writes:

Jason,

Jason> These USB enclosures do not support SCSI UNMAP. However, they do
Jason> support ATA-passthrough, and `hdparm -I` shows that TRIM is
Jason> supported.

How do they signal that they support the passthrough?

-- 
Martin K. Petersen	Oracle Linux Engineering