From: Pat LaVarre <p.lavarre@ieee.org>
To: linux-ide@vger.kernel.org
Subject: Re: [PATCH] libata atapi work #2.1
Date: 17 May 2004 19:48:34 -0600 [thread overview]
Message-ID: <1084844914.3211.182.camel@patibmrh9> (raw)
In-Reply-To: <1084805767.3083.10.camel@patibmrh9>
> > on the SCSI end of ATAPI ...
> > * issue REQUEST SENSE, to simulate an
> > auto-sensing scsi device
> ...
> I will have to discover how to auto sense only after a plain failure,
> not inappropriately after a timeout.
> ...
> I will try to create a desired inference of ATAPI op x03 "REQUEST SENSE"
> to immediately follow the failing command, after the pattern of the
> existing inference of ATA op xA1 "IDENTIFY".
Sorry, no good.
That won't work well til after someone finishes the "(TODO: investigate
using standard PIO-IN paths)" of ata_dev_identify of
drivers/scsi/libata-core.c to replace the "we hand-code it here" found
there now.
Also ATA folk might resist adding a for-them-unused { u8 sense[0x100]; }
member to the (struct ata_port), by way of analogy with the { u16
id[ATA_ID_WORDS]; } now found there in include/linux/libata.h.
Pat LaVarre
next prev parent reply other threads:[~2004-05-18 1:48 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-16 15:39 [PATCH] libata atapi work #2.1 Pat LaVarre
2004-05-16 23:20 ` Jeff Garzik
2004-05-17 14:56 ` Pat LaVarre
2004-05-17 17:57 ` Jeff Garzik
2004-05-17 19:24 ` Pat LaVarre
2004-05-18 1:48 ` Pat LaVarre [this message]
2004-05-18 21:10 ` Pat LaVarre
-- strict thread matches above, loose matches on Subject: below --
2004-05-15 22:12 Jeff Garzik
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