linux-kernel - Re: [PATCH 2.6.22-rc5] libata: add HTS541616J9SA00 to NCQ blacklist

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Date:	Mon, 25 Jun 2007 13:05:10 +0900
From:	Tejun Heo <htejun@...il.com>
To:	Petr Vandrovec <vandrove@...cvut.cz>
CC:	Robert Hancock <hancockr@...w.ca>, Jeff Garzik <jeff@...zik.org>,
	Andrew Morton <akpm@...ux-foundation.org>, enricoss@...cali.it,
	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org
Subject: Re: [PATCH 2.6.22-rc5] libata: add HTS541616J9SA00 to NCQ blacklist

Petr Vandrovec wrote:
>>>> diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
>>>> index adfae9d..fbca8d8 100644
>>>> --- a/drivers/ata/libata-core.c
>>>> +++ b/drivers/ata/libata-core.c
>>>> @@ -3803,6 +3803,7 @@ static const struct ata_blacklist_entry
>>>> ata_device_blacklist [] = {
>>>>      /* Drives which do spurious command completion */
>>>>      { "HTS541680J9SA00",    "SB2IC7EP",    ATA_HORKAGE_NONCQ, },
>>>>      { "HTS541612J9SA00",    "SBDIC7JP",    ATA_HORKAGE_NONCQ, },
>>>> +    { "Hitachi HTS541616J9SA00", "SB4OC70P", ATA_HORKAGE_NONCQ, },
>>>>      { "WDC WD740ADFD-00NLR1", NULL,        ATA_HORKAGE_NONCQ, },
>>>>  
>>>>      /* Devices with NCQ limits */
>>>>
>>> Is that the right ID string? Strange that that one has Hitachi at the
>>> front and the others don't..
>>
>> Yeah, I realized that and asked Enrico about it.  :-)
> 
> I think that "new" one is correct, while old ones are incorrect (unless
> it uses strstr()) - all my Hitachis claim to be Hitachis - like this one
> (which seems to work fine with NCQ):
> 
> gwy:~# hdparm -i /dev/sda
> 
> /dev/sda:
> 
>  Model=Hitachi HDT725032VLA380                 , FwRev=V54OA52A,
> SerialNo=      VFA200R208LH5J
>  Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }

Hmmm... The last one (HTS541612J9SA00) is taken directly from hdparm
output, and I think I verified the patch with the reporter.  Hmm... Can
anyone verify these module strings?

-- 
tejun
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