linux-kernel - Re: [PATCH v4] libata: Add ATA_HORKAGE_NO_NCQ_ON

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Message-ID: <DM6PR04MB708115B43C231444AFB22DC2E7CD9@DM6PR04MB7081.namprd04.prod.outlook.com>
Date:   Wed, 1 Sep 2021 08:13:54 +0000
From:   Damien Le Moal <Damien.LeMoal@....com>
To:     "torvic9@...lbox.org" <torvic9@...lbox.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "hpa@...hat.com" <hpa@...hat.com>
CC:     "linux-ide@...r.kernel.org" <linux-ide@...r.kernel.org>,
        "axboe@...nel.dk" <axboe@...nel.dk>,
        "hdegoede@...hat.com" <hdegoede@...hat.com>
Subject: Re: [PATCH v4] libata: Add ATA_HORKAGE_NO_NCQ_ON_AMD for Samsung 860
 and 870 SSD.

On 2021/09/01 16:38, torvic9@...lbox.org wrote:
> (Sorry for not doing a proper reply)
> 
> Hello,
> Noob here.
> I have a Samsung 860 Pro connected to a AMD X570 chipset mainboard and
> it just works flawlessly on 5.13 and 5.14.
> Are you sure that *every* 860/870 is concerned by this problem on
> *every* AMD controller? Isn't this too restrictive?
> Or am I simply missing something?

Is you drive being initialized with NCQ enabled ?

cat /sys/block/sdX/device/queue_depth ?

> 
> Thanks,
> Tor
> 


-- 
Damien Le Moal
Western Digital Research