linux-kernel - Re: how to limit number of sectors each time

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Date:	Fri, 17 Oct 2008 18:47:00 +0200
From:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To:	gshan <gshan@...atel-lucent.com>
Cc:	Jens Axboe <jens.axboe@...cle.com>, linux-kernel@...r.kernel.org,
	linux-ide@...r.kernel.org
Subject: Re: how to limit number of sectors each time


[ added linux-ide@ to cc:, please use it for ATA questions ]

On Thursday 16 October 2008, gshan wrote:
> 
> > (please never send out html only emails, it's considered very bad style
> > on this list)
> >
> > Sounds like you need a quirk/blacklist entry for that drive, if it
> > doesn't support 0x00 as meaning 256 sectors. If you are using libata,
> > you can add a ATA_HORKAGE_MAX_SEC_128 entry to ata_device_blacklist[] in
> > drivers/ata/libata-core.c
> >   
> I'm using IDE driver instead of HD driver.

Then you need to add check for this device to ide_disk_setup()
(prior to blk_queue_max_sectors() call) in drivers/ide/ide-disk.c.

Thanks,
Bart
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