Messages in this thread | | | Date | Fri, 4 Dec 2015 18:12:24 +0100 | From | Andreas Werner <> | Subject | [v2 0/2] ata/libata-eh.c: introduce ATA_FLAG_NO_LOG_PAGE |
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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.
Changes in v2: fixed the build issue detected by the kbuild test robot
Andreas Werner (2): libata-eh.c: Introduce new ata port flag for controller which lockup on read log page ata/sata_fsl.c: add ATA_FLAG_NO_LOG_PAGE to blacklist the controller for log page reads
drivers/ata/libata-eh.c | 9 +++++++++ drivers/ata/sata_fsl.c | 3 ++- include/linux/libata.h | 1 + 3 files changed, 12 insertions(+), 1 deletion(-)
-- 2.6.2
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