>On 03/18/2016 05:49 AM, Damien Le Moal wrote:
>>
>> libata: Set longer timeout for SETFEATURES_SPINUP
>>
>> For SATA drives with power-up in standby (PUIS) feature set,
>> SETFEATURES_SPINUP execution may be required to get
>> complete IDENTIFY data. However, the timeout used for its
>> execution is the same as for all other SETFEATURES commands,
>> that is, 5 seconds. This is too short for some disks to complete
>> timeout and allow IDENTIFY to return complete data (e.g.
>> disks with large indirection tables stored on media), resulting
>> in ata_dev_read_id to fail. For this feature, allow a larger
>> timeout of 30 seconds.
>>
>Reviewed-by: Hannes Reinecke <hare@xxxxxxxx>
>
>(BTW, you might want to add your Signed-off-by:, too :-)
Hannes,
Sorry about this. Here it is...
libata: Set longer timeout for SETFEATURES_SPINUP
For SATA drives with power-up in standby (PUIS) feature set,
SETFEATURES_SPINUP execution may be required to get
complete IDENTIFY data. However, the timeout used for its
execution is the same as for all other SETFEATURES commands,
that is, 5 seconds. This is too short for some disks to complete
spinup and allow IDENTIFY to return complete data (e.g.
disks with large indirection tables stored on media), resulting
in ata_dev_read_id to fail. For this feature, allow a larger
timeout of 30 seconds.
Signed-off-by: Damien Le Moal <damien.lemoal@xxxxxxxx>
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index e83fc3d..ecbbee2 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4537,7 +4537,8 @@ unsigned int ata_dev_set_feature(struct ata_device *dev, u8 enable, u8 feature)
tf.protocol = ATA_PROT_NODATA;
tf.nsect = feature;
- err_mask = ata_exec_internal(dev, &tf, NULL, DMA_NONE, NULL, 0, 0);
+ err_mask = ata_exec_internal(dev, &tf, NULL, DMA_NONE, NULL, 0,
+ enable == SETFEATURES_SPINUP ? SETFEATURES_SPINUP_TIMEOUT : 0);
DPRINTK("EXIT, err_mask=%x\n", err_mask);
return err_mask;
diff --git a/include/linux/ata.h b/include/linux/ata.h
index fed3641..e3a9ab6 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -371,6 +371,7 @@ enum {
SETFEATURES_AAM_OFF = 0xC2,
SETFEATURES_SPINUP = 0x07, /* Spin-up drive */
+ SETFEATURES_SPINUP_TIMEOUT = 30000,
SETFEATURES_SATA_ENABLE = 0x10, /* Enable use of SATA feature */
SETFEATURES_SATA_DISABLE = 0x90, /* Disable use of SATA feature */
------------------------
Damien Le Moal, Ph.D.
Sr. Manager, System Software Group, HGST Research,
HGST, a Western Digital company
Damien.LeMoal@xxxxxxxx
(+81) 0466-98-3593 (ext. 513593)
1 kirihara-cho, Fujisawa,
Kanagawa, 252-0888 Japan
www.hgst.com
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