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Date:      Mon, 23 Sep 2002 13:00:24 +0200
From:      Hanspeter Roth <hanspeter_roth@hotmail.com>
To:        freebsd-current@FreeBSD.ORG
Subject:   Re: Dma via Promise ATA 100/133 TX2
Message-ID:  <20020923130024.A369@snoopy.cablecom.ch>
In-Reply-To: <20020923104819.GA1863@tiiu.internal>; from kalts@estpak.ee on Mon, Sep 23, 2002 at 01:48:19PM %2B0300
References:  <20020923111945.A457@gicco.cablecom.ch> <200209230939.g8N9dJsv072495@spider.deepcore.dk> <20020923104819.GA1863@tiiu.internal>

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  On Sep 23 at 13:48, Vallo Kallaste spoke:

> Back to the 4.5-something I had problems with the Plextor CD-RW
> drive, Promise ATA-66 and DMA. We had email discussion about it and
> you claimed that Promise support for ATAPI DMA is almost missing,

I think the guys of the Linux-kernel list have discussed about DMA
of certain Promise controllers. It seems to be a known issue.

Are there alternative controllers that support DMA with ATAPI
drives?

> but I guess you have better things to remember. The combo did work
> well with PIO4. Sounds similar.

PIO4 is sufficient for a single drive. I'm trying to burn on 4
drives concurrently.

-Hanspeter

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