From: Jeff Garzik <jgarzik@pobox.com>
To: Witold Krecicki <adasi@kernel.pl>
Cc: linux-kernel@vger.kernel.org
Subject: Re: sil_blacklist - are all those entries necessary?
Date: Thu, 17 Feb 2005 13:45:07 -0500 [thread overview]
Message-ID: <4214E633.7010705@pobox.com> (raw)
In-Reply-To: <200502170205.48200.adasi@kernel.pl>
Witold Krecicki wrote:
> Dnia czwartek 17 luty 2005 01:59, napisałeś:
>
>>>is there ANY way to test if this hack is necessary for specific model of
>>>a disk?
>>
>>You need a bus analyzer, and need to test different sizes of FIS's. If
>>all possible sizes (2048 combinations) work on your device, the
>>blacklist entry is not needed.
>
> is there any software bus analyzer? And if so, is there
> Testing-different-sizes-of-FIS's-for-dummies anywhere ?
You could modify a few drivers to receive an "unknown FIS", or receive
all FIS's into a DMA-able area that the system could then read. So it's
doable. I just don't have time to teach all of SATA and ATA to you :)
See http://linux.yyz.us/sata/devel.html
Jeff
prev parent reply other threads:[~2005-02-17 18:45 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-15 16:06 sil_blacklist - are all those entries necessary? Witold Krecicki
2005-02-15 16:52 ` Jeff Garzik
2005-02-15 20:29 ` Witold Krecicki
2005-02-17 0:43 ` Witold Krecicki
2005-02-17 0:59 ` Jeff Garzik
2005-02-17 1:05 ` Witold Krecicki
2005-02-17 18:45 ` Jeff Garzik [this message]
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