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ses: Add power_status to SES device slot

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Add power_status to SES device slot, so we can power on/off the
HDDs behind the enclosure.

Check firmware status in ses_set_* before sending control pages to
firmware.

Signed-off-by: Song Liu <songliubraving@fb.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Jens Axboe <axboe@fb.com>
Cc: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Song Liu
2014-12-30 14:46:18 -08:00
committed by Christoph Hellwig
parent 921ce7f578
commit 08024885a2
3 changed files with 133 additions and 9 deletions
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6
include/linux/enclosure.h
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@@ -79,6 +79,11 @@ struct enclosure_component_callbacks {
int (*set_locate)(struct enclosure_device *,
struct enclosure_component *,
enum enclosure_component_setting);
void (*get_power_status)(struct enclosure_device *,
struct enclosure_component *);
int (*set_power_status)(struct enclosure_device *,
struct enclosure_component *,
int);
int (*show_id)(struct enclosure_device *, char *buf);
};
@@ -94,6 +99,7 @@ struct enclosure_component {
int locate;
int slot;
enum enclosure_status status;
int power_status;
};
struct enclosure_device {