linux-kernel - Re: [PATCH 2/2] ata: libata-core: Apply ATI NCQ horkage to ASPEED as well

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

Message-ID: <e71d0891-371e-d267-879d-47b736bb12c9@gmail.com>
Date:   Tue, 18 Apr 2023 11:42:38 +0300
From:   Sergei Shtylyov <sergei.shtylyov@...il.com>
To:     Patrick McLean <chutzpah@...too.org>, linux-kernel@...r.kernel.org
Cc:     linux-ide@...r.kernel.org, Bjorn Helgaas <bhelgaas@...gle.com>,
        linux-pci@...r.kernel.org, Dave Airlie <airlied@...hat.com>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH 2/2] ata: libata-core: Apply ATI NCQ horkage to ASPEED as
 well

Hello!

On 4/18/23 4:17 AM, Patrick McLean wrote:

> We have some machines with ASPEED SATA controllers, and are seeing the same NCQ
> issues that ATI controllers (I am not sure if it's a rebranded ATI controller,
> or they both have some faulty implementation). This NCQ breakage is consistent
> across a few different types of drives.
> 
> Instead of maintaining a list of drives that are broken with ASPEED controllers
> as well as ATI, let's just treat ASPEED controllers like ATI ones, and disable
> NCQ on drives that have ATA_HORKAGE_NO_NCQ_ON_ATI set on them.
> 
> We have been running this patch on several machines for over a week now without
> reproducing an issue that was happening almost daily before.
> 
> Signed-off-by: Patrick McLean <chutzpah@...too.org>
> ---
>  drivers/ata/libata-core.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
> index 14c17c3bda4e..051492e8e9f9 100644
> --- a/drivers/ata/libata-core.c
> +++ b/drivers/ata/libata-core.c
> @@ -2219,7 +2219,8 @@ static int ata_dev_config_ncq(struct ata_device *dev,
>  	}
>  
>  	if (dev->horkage & ATA_HORKAGE_NO_NCQ_ON_ATI &&
> -	    ata_dev_check_adapter(dev, PCI_VENDOR_ID_ATI)) {
> +	    (ata_dev_check_adapter(dev, PCI_VENDOR_ID_ATI) ||
> +		ata_dev_check_adapter(dev, PCI_VENDOR_ID_ASPEED))) {

   Please align the start of this line with the start of the above
line, so that it doesn't needlessly blend with the below line.

>  		snprintf(desc, desc_sz, "NCQ (not used)");
>  		return 0;
>  	}

MBR, Sergey