From: Jeff Garzik <jeff@garzik.org>
To: Tejun Heo <htejun@gmail.com>
Cc: Alan <alan@lxorguk.ukuu.org.uk>,
linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: Proposed changes for libata speed handling
Date: Mon, 15 Jan 2007 08:52:56 -0500 [thread overview]
Message-ID: <45AB8738.6090405@garzik.org> (raw)
In-Reply-To: <45AAF060.3040106@gmail.com>
BTW, for a solution to be complete, we need to halt all work on all
other ports, when issuing SET FEATURES - XFER MODE. On SiI and Promise
controllers, possibly others, the command is snooped and side effects
such as register setting occur.
Long standing to-do. Currently we hack around this by serializing the
bus probe, and preventing people from issuing SET FEATURES - XFER MODE
from userspace.
Jeff
prev parent reply other threads:[~2007-01-15 13:52 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-12 13:53 Proposed changes for libata speed handling Alan
2007-01-13 2:02 ` Tejun Heo
2007-01-13 10:01 ` Alan
2007-01-15 3:09 ` Tejun Heo
2007-01-15 13:52 ` Jeff Garzik [this message]
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