linux-kernel - [PATCH v2 0/1] libata: add ATA_HORKAGE_NO_NCQ

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20210827053344.15087-1-hpa@redhat.com>
Date:   Fri, 27 Aug 2021 01:33:43 -0400
From:   Kate Hsuan <hpa@...hat.com>
To:     Jens Axboe <axboe@...nel.dk>, Hans de Goede <hdegoede@...hat.com>,
        Damien Le Moal <damien.lemoal@....com>
Cc:     linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org, Kate Hsuan <hpa@...hat.com>
Subject: [PATCH v2 0/1] libata: add ATA_HORKAGE_NO_NCQ_TRIM for Samsung 860 and 870 SSDs

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