From: Tejun Heo <tj@kernel.org>
To: Gabriele Mazzotta <gabriele.mzt@gmail.com>
Cc: stripathi@apm.com, linux-kernel@vger.kernel.org,
linux-ide@vger.kernel.org
Subject: Re: [PATCH v2 2/2] libata: Ignore spurious PHY event on LPM policy change
Date: Sat, 25 Apr 2015 16:53:59 -0400 [thread overview]
Message-ID: <20150425205359.GB1499@htj.duckdns.org> (raw)
In-Reply-To: <1429984357-2223-3-git-send-email-gabriele.mzt@gmail.com>
On Sat, Apr 25, 2015 at 07:52:37PM +0200, Gabriele Mazzotta wrote:
> When the LPM policy is set to ATA_LPM_MAX_POWER, the device might
> generate a spurious PHY event that cuases errors on the link.
> Ignore this event if it occured within 10s after the policy change.
>
> The timeout was chosen observing that on a Dell XPS13 9333 these
> spurious events can occur up to roughly 6s after the policy change.
>
> Link: http://lkml.kernel.org/g/3352987.ugV1Ipy7Z5@xps13
> Signed-off-by: Gabriele Mazzotta <gabriele.mzt@gmail.com>
Applied 1-2 to libata/for-4.1-fixes w/ stable cc'd.
Thanks a lot.
--
tejun
prev parent reply other threads:[~2015-04-25 20:54 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-25 17:52 [PATCH v2 0/2] " Gabriele Mazzotta
2015-04-25 17:52 ` [PATCH v2 1/2] libata: Add helper to determine when PHY events should be ignored Gabriele Mazzotta
2015-04-25 20:53 ` Tejun Heo
2015-04-25 17:52 ` [PATCH v2 2/2] libata: Ignore spurious PHY event on LPM policy change Gabriele Mazzotta
2015-04-25 20:53 ` Tejun Heo [this message]
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