linux-kernel - Re: [PATCH 2/4] hpt366: MWDMA filter for SATA cards

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Message-ID: <46E28F01.7010808@ru.mvista.com>
Date:	Sat, 08 Sep 2007 16:01:05 +0400
From:	Sergei Shtylyov <sshtylyov@...mvista.com>
To:	Sergei Shtylyov <sshtylyov@...mvista.com>
Cc:	bzolnier@...il.com, linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/4] hpt366: MWDMA filter for SATA cards

Hello, I wrote:
Sergei Shtylyov wrote:

>    The patch was 4/4 of course. :-<
>     Probably I was too esctatic about the code. ;-)

    Or rarher me. :-)

>> The Marvell bridge chips used on HighPoint SATA cards do not seem to 
>> support
>> the MWDMA modes (at least that caould be seen in their so-called 
>> drivers :-),
>> so the driver needs to account for this -- to achieve this:

>> - add mdma_filter() method from the original patch by Bartlomiej 
>> Zolnierkewicz
>>   with his consent, also adding the method callout to ide_rate_filter();

>> - installed the method for all chips to only return empty mask if a 
>> SATA drive
>>   is detected onHPT372{AN]/374 chips...

>> Signed-off-by: Sergei Shtylyov <sshtylyov@...mvista.com>

>> ---
>> This patch against the current Linus' tree and unfortunately I was 
>> able to only
>> compile test it since that tree gives MODPOST warning and dies early 
>> on bootup.
>> Will hopefully try to test if/when I have time... :-)

    And it was still the same -- I'd bisected if I had time...

>> Index: linux-2.6/drivers/ide/pci/hpt366.c
>> ===================================================================
>> --- linux-2.6.orig/drivers/ide/pci/hpt366.c
>> +++ linux-2.6/drivers/ide/pci/hpt366.c
>> @@ -1,5 +1,5 @@
>>  /*
>> - * linux/drivers/ide/pci/hpt366.c        Version 1.12    Aug 25, 2007
>> + * linux/drivers/ide/pci/hpt366.c        Version 1.13    Aug 22, 2007

>    Errr... and version shuold Aug 02 -- thought I've fixed that. :-/

    Hehe, thanks.  Those versions turned to be quite PITA a to keep.

MBR, Sergei
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