linux-kernel - Re: [2.6 patch] select ATA

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Message-ID: <480DF876.7070800@gmail.com>
Date:	Tue, 22 Apr 2008 23:38:46 +0900
From:	Tejun Heo <htejun@...il.com>
To:	Mark Lord <liml@....ca>
CC:	Sergei Shtylyov <sshtylyov@...mvista.com>,
	Jeff Garzik <jeff@...zik.org>, Adrian Bunk <bunk@...nel.org>,
	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Re: [2.6 patch] select ATA_SFF

Mark Lord wrote:
> Tejun Heo wrote:
>> Sergei Shtylyov wrote:
>>>>>    Jeff, Tejun, what "sff" in the file name actually means? Isn't 
>>>>> it strange that the drivers lacking DMA support or not really 
>>>>> compliant with SFF-8038i have to link with this file?
>>>
>>>> Maybe it should be libata-tf and libata-bmdma, but sff (sans bmdma)
>>>> and bmdma is acceptable, hopefully, right?
>>>
>>>    What's sff sans bmdma?
>>
>> Supposed to be TF interface.  IIRC, the SFF term was first from Alan 
>> although it's entirely possible that I misunderstood it and used it in 
>> the wrong way.  Alan, can you please clear up the confusion?
> ..
> 
> SFF stands for "Small Form Factor", as in the "SFF Committee Information
> Specification for Bus Master Programming Interface for IDE ATA 
> Controllers Rev 1.0"
> from May 16, 1994.
> 
> That document is basically a committee rubber-stamp of the earlier Intel
> "PCI IDE Controller Specification Revision 1.0" dated 3/4/94.

Ah.. that means we have the whole naming thing wrong.  Yewwww....

-- 
tejun
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