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Date: Fri, 4 Jul 2008 00:00:10 +0100 From: Alan Cox <alan@...rguk.ukuu.org.uk> To: Mikulas Patocka <mpatocka@...hat.com> Cc: Jens Axboe <jens.axboe@...cle.com>, linux-kernel@...r.kernel.org, Neil Brown <neilb@...e.de> Subject: Re: [PATCH 1/2] Avoid bio_endio recursion > SCSI. Even the NCQ commands are done via IDE registers, not SCSI command > block. It seems like someone wanted to save few weeks of coding by reusing Thats really a trivial question of encoding, in all but actual byte encoding it is SCSI. Once you look at SAS and ATAPI it's all the more clear. > the SCSI disk queuing ... and created a lot of other problems (example: if > you have disk error with IDE driver, it dumps IDE registers into log ... > if you have disk error with SATA driver, it dumps sense key ... but Actually it dumps both - and that behaviour was chosen to match existing drivers in a large part (eg 3ware). -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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