linux-kernel - Re: [PATCH 1/1] Reduce AACRAID hardware queue size

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Message-ID: <20090623164303.3f85a799@lxorguk.ukuu.org.uk>
Date:	Tue, 23 Jun 2009 16:43:03 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	James Bottomley <James.Bottomley@...senPartnership.com>
Cc:	Andy Whitcroft <apw@...onical.com>,
	Adaptec OEM Raid Solutions <aacraid@...ptec.com>,
	Mathias Urlichs <matthias@...ichs.de>,
	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] Reduce AACRAID hardware queue size

> Incidentally, SGBCOUNT isn't queue depth, its maximum number of sectors
> in an individual transfer.  What we'd need to show for this to be the
> fix is that every 32 bit aacraid card is affected, which, given the
> paucity of bug reports, I don't think so.

Its usually a specific firmware revision that weird problems with aacraid
hardware are linked to so it is worth trying different firmwares.

Alan
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