From: Tejun Heo <tj@kernel.org>
To: Robert Hancock <hancockrwd@gmail.com>
Cc: Justin Maggard <jmaggard10@gmail.com>, linux-ide@vger.kernel.org
Subject: Re: Hotplug issue with Marvell 6121
Date: Thu, 11 Mar 2010 10:01:07 +0900 [thread overview]
Message-ID: <4B9840D3.7050109@kernel.org> (raw)
In-Reply-To: <4B983F08.6080701@gmail.com>
Hello,
On 03/11/2010 09:53 AM, Robert Hancock wrote:
> That doesn't sound like a great solution. I'd think that the speed
> limiting should be reset upon disabling the device so that we start over
> at 3Gbps again when you reconnect..
libata EH already does that. It resets the speed limit mask after the
device is disabled and when the *next* reset happens on device
hotplug, the highest speed will be applied. It's just that there
usually is no need to do an extra reset right after disabling a
device.
Does 1.5Gbps work at all on those marvell controllers? It's *very*
strange to miss hotplug under 1.5Gbps. Those signals are OOB and
don't even follow the usual signal frequency.
Thanks.
--
tejun
next prev parent reply other threads:[~2010-03-11 1:01 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-10 0:51 Hotplug issue with Marvell 6121 Justin Maggard
2010-03-10 22:46 ` Justin Maggard
2010-03-11 0:53 ` Robert Hancock
2010-03-11 1:01 ` Tejun Heo [this message]
2010-03-11 2:32 ` Justin Maggard
2010-03-11 3:33 ` Mark Lord
2010-03-11 3:45 ` Tejun Heo
2010-03-11 18:42 ` Justin Maggard
2010-03-11 22:28 ` Tejun Heo
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