summaryrefslogtreecommitdiff
path: root/include/linux/libata.h
diff options
context:
space:
mode:
authorAaron Lu <aaron.lu@intel.com>2013-01-15 13:20:58 +0400
committerJeff Garzik <jgarzik@redhat.com>2013-01-22 00:40:35 +0400
commitafe759511808cd5bb508b598007cf0c7b0ca8e08 (patch)
tree26073c5a74b5fe2183aa457da6d9b5cc3d9912bb /include/linux/libata.h
parent1757d902b029a29dfcef63609964385cf8865b5a (diff)
downloadlinux-afe759511808cd5bb508b598007cf0c7b0ca8e08.tar.xz
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.h3
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 */