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Date:      Sat, 18 Dec 1999 15:26:35 -0500 (EST)
From:      Brian Fundakowski Feldman <green@FreeBSD.org>
To:        Steve Ames <steve@virtual-voodoo.com>
Cc:        freebsd-hackers@FreeBSD.org
Subject:   Re: ATA w/ today's -CURRENT
Message-ID:  <Pine.BSF.4.10.9912181515500.90901-100000@green.dyndns.org>
In-Reply-To: <199912132310.SAA00352@virtual-voodoo.com>

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On Mon, 13 Dec 1999, Steve Ames wrote:

> Hrm... no question that the ATA driver is better today, but its still
> not reporting DMA on my Quantum bigfoot drive (which should support DMA:
> http://www.quantum.com/products/archive/bigfoot_cy/bigfoot_cy_features.htm)
> 
> The Maxtor is pretty old (But its been current since 3.0 :) but may
> still have some DMA support? (ftp://ftp.maxtor.com/pub/ide/71626ap.txt)

I have this drive lying in the general few-foot radius of my computer.
It's... well, problematic, to say the least, if trying to use it as a
slave on ata1 where

ata-pci0 (ALi) ---- ata0 --- ad0: <ST36422A/3.04> ATA-4 (16 s/i, 1 dq, UDMA33)
               \         `-- acd0: <NEC CD-ROM DRIVE:285/3.04> (PIO)
                `-- ata1 --- ad1: <WDC AC310100B/32.02S32> ATA-4 (ditto ad0)
                         `-- ad2: <Maxtor 71626 AP/QA3C1D20> ATA-0 (16, 1, PIO)

I get these messages and very goofy access to ad1:

Dec 15 19:08:06 green /kernel: Mounting root from ufs:/dev/ad0s1a
Dec 15 19:08:06 green /kernel: ad1: ad_timeout: lost disk contact - resetting
Dec 15 19:08:06 green /kernel: ata1: resetting devices .. done
Dec 15 19:08:06 green /kernel: ad1: ad_timeout: lost disk contact - resetting
Dec 15 19:08:06 green /kernel: ata1: resetting devices .. done
Dec 15 19:08:06 green /kernel: ad1: ad_timeout: lost disk contact - resetting
Dec 15 19:08:06 green /kernel: ata1: resetting devices .. done
Dec 15 19:08:06 green /kernel: ad1: ad_timeout: lost disk contact - resetting
Dec 15 19:08:06 green /kernel: ad1: ad_timeout: trying fallback to PIO mode
Dec 15 19:08:06 green /kernel: ata1: resetting devices .. done
(rc continues here)

So ad1 runs in PIO, and mount may or may not have successfully gotten
ad1 mount entries up.


> 
> What am I missing?
> 

Something possibly close to what I am :/  That 71626 seems strange.

> -Steve

-- 
 Brian Fundakowski Feldman           \  FreeBSD: The Power to Serve!  /
 green@FreeBSD.org                    `------------------------------'



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