Re: [PATCH] libata: workaround DRQ=1 ERR=1 for ATAPI tape drives

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To: Mark Lord <liml@xxxxxx>
Subject: Re: [PATCH] libata: workaround DRQ=1 ERR=1 for ATAPI tape drives
From: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
Date: Tue, 13 Nov 2007 15:14:59 +0000
Cc: albertl@xxxxxxxx, Jeff Garzik <jeff@xxxxxxxxxx>, Tejun Heo <htejun@xxxxxxxxx>, linux-ide@xxxxxxxxxxxxxxx
In-reply-to: <4739AB5B.7000703@xxxxxx>
Organization: Red Hat UK Cyf., Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, Y Deyrnas Gyfunol. Cofrestrwyd yng Nghymru a Lloegr o'r rhif cofrestru 3798903
References: <471C6C44.2030607@xxxxxxxxx> <471CEDD4.5040201@xxxxxxxxxx> <471D25D0.9020702@xxxxxx> <47397784.9070205@xxxxxxxxxx> <47397CC0.1070401@xxxxxxxxxx> <4739AB5B.7000703@xxxxxx>

> NAK.  There's no guarantee that the next command after an error
> will always be REQUEST_SENSE.   Or is there?

For that device over ATAPI I believe the guarantee is there, the same as
for SCSI.

Alan
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Follow-Ups:
- Re: [PATCH] libata: workaround DRQ=1 ERR=1 for ATAPI tape drives
  - From: Mark Lord

References:
- ATA tape drive STT3401A needs DRQ HSM workaround too
  - From: Tejun Heo
- Re: ATA tape drive STT3401A needs DRQ HSM workaround too
  - From: Jeff Garzik
- Re: ATA tape drive STT3401A needs DRQ HSM workaround too
  - From: Mark Lord
- Re: ATA tape drive STT3401A needs DRQ HSM workaround too
  - From: Albert Lee
- [PATCH] libata: workaround DRQ=1 ERR=1 for ATAPI tape drives
  - From: Albert Lee
- Re: [PATCH] libata: workaround DRQ=1 ERR=1 for ATAPI tape drives
  - From: Mark Lord

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