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
next 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: libata: add ATA_HORKAGE_NO_NCQ_TRIM for Samsung 860 and 870 SSDs 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
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