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From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
To: petkovbb@gmail.com
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>,
	FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>,
	valerio.p@libero.it, linux-ide@vger.kernel.org
Subject: Re: http://bugzilla.kernel.org/show_bug.cgi?id=11742
Date: Sat, 25 Oct 2008 22:21:03 +0400	[thread overview]
Message-ID: <4903638F.4060309@ru.mvista.com> (raw)
In-Reply-To: <20081025174710.GA32108@gollum.tnic>

Hello.

Borislav Petkov wrote:

>>> For 'addr' we may try to use 4 bytes instead of the current 32 ones but lets
>>> fix the regression first.
>>>       
>>   Alas, TX4939 requeires 8-byte DMA address (and byte count) alignment.  
>> Another semi-compatible SFF-8038 implementation...
>>     
>
> ... which calls for a field in the capabilities and mechanical status page
> saying something like: hello, I'm a xy device and I can do z bytes dma
> alignment, otherwise I get cranky and don't work anymore :)
>   

   I didn't get it -- TX4939 is IDE host controller and I can't imagine 
how an ATAPI device could care about the buffer address alignment on the 
host side...

MBR. Sergei



  reply	other threads:[~2008-10-25 18:21 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-10-18 18:07 http://bugzilla.kernel.org/show_bug.cgi?id=11742 Borislav Petkov
2008-10-20  2:20 ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 FUJITA Tomonori
2008-10-20  6:07   ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 Borislav Petkov
2008-10-21 23:57   ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 FUJITA Tomonori
2008-10-22  6:12     ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 Borislav Petkov
2008-10-22  6:50       ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 FUJITA Tomonori
2008-10-22 11:27         ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 Boris Petkov
2008-10-22 13:30           ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 Valerio Passini
2008-10-22 14:45           ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 Valerio Passini
2008-10-22 15:57             ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 Boris Petkov
2008-10-22 22:20               ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 Valerio Passini
2008-10-23  6:09                 ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 Borislav Petkov
2008-10-23 13:53                   ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 Valerio Passini
2008-10-22 20:15         ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 Bartlomiej Zolnierkiewicz
2008-10-24  6:50           ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 Borislav Petkov
2008-10-25 12:58             ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 Bartlomiej Zolnierkiewicz
2008-10-25 13:42               ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 Sergei Shtylyov
2008-10-25 17:47                 ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 Borislav Petkov
2008-10-25 18:21                   ` Sergei Shtylyov [this message]
2008-10-25 18:27                     ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 Sergei Shtylyov
2008-10-25 18:43                     ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 Borislav Petkov
2008-10-25 18:12               ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 Borislav Petkov
2008-10-26  8:38                 ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 Valerio Passini
2008-10-26 14:58                   ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 Borislav Petkov
2008-10-26 20:01                     ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 Valerio Passini
2008-10-27  6:15                       ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 Borislav Petkov
2008-10-27 10:14                         ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 Valerio Passini
2008-10-27 10:47                         ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 Sergei Shtylyov
2008-10-27 10:55                           ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 Boris Petkov
2008-10-27 11:15                             ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 Sergei Shtylyov
2008-10-27 19:46                         ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 Bartlomiej Zolnierkiewicz
2008-10-27  5:46               ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 FUJITA Tomonori
2008-10-27  8:37                 ` http://bugzilla.kernel.org/show_bug.cgi?id=11742 FUJITA Tomonori

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