linux-ide.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Kate Hsuan <hpa@redhat.com>
To: Jens Axboe <axboe@kernel.dk>, Hans de Goede <hdegoede@redhat.com>,
	Damien Le Moal <damien.lemoal@wdc.com>
Cc: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org,
	stable@vger.kernel.org, Kate Hsuan <hpa@redhat.com>
Subject: [PATCH v2 0/1] libata: add ATA_HORKAGE_NO_NCQ_TRIM for Samsung 860 and 870 SSDs
Date: Fri, 27 Aug 2021 01:33:43 -0400	[thread overview]
Message-ID: <20210827053344.15087-1-hpa@redhat.com> (raw)

Entire disabling NCQ for Samsugn 860/870 SSD will cause I/O performance
drop. In this case, a flag ATA_HORKAGE_NONCQ_ON_ASMEDIA_AMD_MARVELL is
introduced to used to performe additional check for these SSDs. If it
finds it's parent ATA controller is AsMedia/AMD/Marvell, the NCQ will be
disabled. Otherwise, the NCQ is kept to enable.

Kate Hsuan (1):
  libata: libata: add ATA_HORKAGE_NO_NCQ_TRIM for Samsung 860 and 870
    SSDs

 drivers/ata/libata-core.c | 37 ++++++++++++++++++++++++++++++++-----
 include/linux/libata.h    |  3 +++
 2 files changed, 35 insertions(+), 5 deletions(-)

-- 
2.31.1


             reply	other threads:[~2021-08-27  5:34 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-27  5:33 Kate Hsuan [this message]
2021-08-27  5:33 ` [PATCH v2 1/1] libata: " Kate Hsuan
2021-08-27  6:04   ` Damien Le Moal
2021-08-27  6:56   ` Greg KH
2021-08-27 10:36   ` Hans de Goede

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=20210827053344.15087-1-hpa@redhat.com \
    --to=hpa@redhat.com \
    --cc=axboe@kernel.dk \
    --cc=damien.lemoal@wdc.com \
    --cc=hdegoede@redhat.com \
    --cc=linux-ide@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=stable@vger.kernel.org \
    --subject='Re: [PATCH v2 0/1] libata: add ATA_HORKAGE_NO_NCQ_TRIM for Samsung 860 and 870 SSDs' \
    /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

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).