linux-kernel - Re: [PATCH 2/3] libata: Add firmware

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Message-ID: <CAPeXnHuSccpYkDRmWO5tKuec2q0WqX7Ktxk_yX9te77xrEe=SA@mail.gmail.com>
Date:	Mon, 11 May 2015 13:24:18 -0700
From:	Matthew Garrett <matthew.garrett@...eos.com>
To:	Tejun Heo <tj@...nel.org>
Cc:	Matthew Garrett <mjg59@...eos.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-ide@...r.kernel.org, kristen@...ux.intel.com,
	sgunderson@...foot.com
Subject: Re: [PATCH 2/3] libata: Add firmware_default LPM policy

Ok, I've had one person testing this report the following:

[ 1896.902726] ata1.00: exception Emask 0x0 SAct 0x800 SErr 0x40000 action 0x0
[ 1896.902735] ata1.00: irq_stat 0x40000008
[ 1896.902741] ata1: SError: { CommWake }
[ 1896.902748] ata1.00: failed command: WRITE FPDMA QUEUED
[ 1896.902758] ata1.00: cmd 61/18:58:88:d5:5d/00:00:0d:00:00/40 tag 11
ncq 12288 out
         res 41/04:00:9f:d5:5d/00:00:0d:00:00/40 Emask 0x401 (device error) <F>
[ 1896.902764] ata1.00: status: { DRDY ERR }
[ 1896.902768] ata1.00: error: { ABRT }
[ 1896.912725] ata1.00: supports DRM functions and may not be fully accessible
[ 1896.932716] ata1.00: supports DRM functions and may not be fully accessible
[ 1896.942783] ata1.00: configured for UDMA/133
[ 1896.942815] ata1: EH complete

which seems to occur in batches. I'm a little confused - isn't it
legitimate for the phy to report comwake here?
-- 
Matthew Garrett | matthew.garrett@...eos.com
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