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authorKristen Carlson Accardi <kristen@linux.intel.com>2011-03-04 10:24:11 -0800
committerJeff Garzik <jgarzik@pobox.com>2011-05-19 20:50:53 -0400
commit8a745f1f39b7a20047a362b67ce9151c07d14440 (patch)
treef8f08be7a284d195f30a8b2e6fc63b714e4f7f21 /include/linux/libata.h
parent0afc6f5ba95419fd505e60637f7645425f16e407 (diff)
downloadop-kernel-dev-8a745f1f39b7a20047a362b67ce9151c07d14440.zip
op-kernel-dev-8a745f1f39b7a20047a362b67ce9151c07d14440.tar.gz
libata: Power off empty ports
Give users the option of completely powering off unoccupied SATA ports using the existing min_power link_power_management_policy option. When the use selects this option on an empty port, we will power the port off by setting DET to off. For occupied ports, behavior is unchanged. Signed-off-by: Kristen Carlson Accardi <kristen@linux.intel.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Diffstat (limited to 'include/linux/libata.h')
-rw-r--r--include/linux/libata.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 04f32a3..5a9926b 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -1151,6 +1151,7 @@ extern void ata_do_eh(struct ata_port *ap, ata_prereset_fn_t prereset,
ata_reset_fn_t softreset, ata_reset_fn_t hardreset,
ata_postreset_fn_t postreset);
extern void ata_std_error_handler(struct ata_port *ap);
+extern int ata_link_nr_enabled(struct ata_link *link);
/*
* Base operations to inherit from and initializers for sht
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