From: "Jason A. Donenfeld" <Jason@zx2c4.com>
To: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>
Subject: Re: TRIM/UNMAP/DISCARD via ATA Passthrough
Date: Thu, 15 Sep 2016 17:41:25 +0200 [thread overview]
Message-ID: <CAHmME9pX1sSdFLfsgBqunh=5ttmPg5-vAzvTEfD1Xt4NBk6JzA@mail.gmail.com> (raw)
In-Reply-To: <yq1d1k6l43x.fsf@sermon.lab.mkp.net>
On Wed, Sep 14, 2016 at 8:37 PM, Martin K. Petersen
> How do they signal that they support the passthrough?
Through the usual SCSI ATA-passthrough interface, "SAT" (SCSI-ATA
Command Translation) -- ATA PASS THROUGH SCSI (16) and ATA PASS
THROUGH SCSI (12).
I can use hdparm to treat /dev/sdb as an ATA interface:
zx2c4@thinkpad ~ $ sudo hdparm -I /dev/sdb | grep TRIM
* Data Set Management TRIM supported
next prev parent reply other threads:[~2016-09-15 15:41 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-12 18:50 TRIM/UNMAP/DISCARD via ATA Passthrough Jason A. Donenfeld
2016-09-13 17:45 ` Henrique de Moraes Holschuh
2016-09-14 18:37 ` Martin K. Petersen
2016-09-15 15:41 ` Jason A. Donenfeld [this message]
2016-09-15 16:07 ` Martin K. Petersen
2016-09-15 20:52 ` Jason A. Donenfeld
2016-09-16 11:16 ` Hannes Reinecke
2016-09-16 15:53 ` Austin S. Hemmelgarn
2016-09-16 16:21 ` James Bottomley
2016-09-16 17:06 ` Austin S. Hemmelgarn
2016-09-17 1:24 ` Jason A. Donenfeld
2016-09-17 5:14 ` James Bottomley
2016-09-19 13:01 ` Austin S. Hemmelgarn
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CAHmME9pX1sSdFLfsgBqunh=5ttmPg5-vAzvTEfD1Xt4NBk6JzA@mail.gmail.com' \
--to=jason@zx2c4.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-scsi@vger.kernel.org \
--cc=martin.petersen@oracle.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).