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| author | Aaron Lu <aaron.lu@intel.com> | 2013-01-15 17:20:58 +0800 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2013-01-21 15:40:35 -0500 |
| commit | afe759511808cd5bb508b598007cf0c7b0ca8e08 (patch) | |
| tree | 26073c5a74b5fe2183aa457da6d9b5cc3d9912bb /include/linux/libata.h | |
| parent | 1757d902b029a29dfcef63609964385cf8865b5a (diff) | |
| download | lwn-afe759511808cd5bb508b598007cf0c7b0ca8e08.tar.gz lwn-afe759511808cd5bb508b598007cf0c7b0ca8e08.zip | |
libata: identify and init ZPODD devices
The ODD can be enabled for ZPODD if the following three conditions are
satisfied:
1 The ODD supports device attention;
2 The platform can runtime power off the ODD through ACPI;
3 The ODD is either slot type or drawer type.
For such ODDs, zpodd_init is called and a new structure is allocated for
it to store ZPODD related stuffs.
And the zpodd_dev_enabled function is used to test if ZPODD is currently
enabled for this ODD.
A new config CONFIG_SATA_ZPODD is added to selectively build ZPODD code.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'include/linux/libata.h')
| -rw-r--r-- | include/linux/libata.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h index 7ae207eb29a0..65ff67e34b77 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -621,6 +621,9 @@ struct ata_device { union acpi_object *gtf_cache; unsigned int gtf_filter; #endif +#ifdef CONFIG_SATA_ZPODD + void *zpodd; +#endif struct device tdev; /* n_sector is CLEAR_BEGIN, read comment above CLEAR_BEGIN */ u64 n_sectors; /* size of device, if ATA */ |