Thread (5 messages) 5 messages, 2 authors, 2015-12-08

Re: [v2 0/2] ata/libata-eh.c: introduce ATA_FLAG_NO_LOG_PAGE

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From: Tejun Heo <tj@kernel.org>
Date: 2015-12-07 15:26:36
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On Fri, Dec 04, 2015 at 06:12:24PM +0100, Andreas Werner wrote:
This patchset add a new ata port flag ATA_FLAG_NO_LOG_PAGE to be able
to blacklist ports/controller which e.g. locks up on a log page read.

This flag is added to the sata_fsl driver which is the first affected
one.

The lockup was detected on Freescale P1013/P1022, T4240 using a ATP
mSATA.
The device failed during initialisation if the SATA device includes the
devslp feature.

With this patchset, we blacklist the fsl sata controller and return
a error on any attempt to read a log page. This allows us to access
the mSATA.
Applied 1-2 to libata/for-4.4-fixes.

Thanks.

-- 
tejun
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