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authorRoland Dreier <roland@purestorage.com>2011-07-05 13:34:52 -0700
committerNicholas Bellinger <nab@linux-iscsi.org>2011-07-22 09:37:47 +0000
commite22a7f075226c51f3f71b922e9eeb4f99fac1475 (patch)
treee0a04f974153136eafe13793ee59be58c37c5ffc /include/target/target_core_device.h
parentb2eb705e00a9b9a9b3122192a7ab3e9058f0c48a (diff)
target: Implement Block Device Characteristics VPD page
Implement page B1h, Block Device Characteristics, so that we can report a medium rotation rate of 1 (non-rotating / solid state) if the is_nonrot device attribute is set; we update the iblock backend to set this attribute if the underlying Linux block device has its nonrot flag set. Signed-off-by: Roland Dreier <roland@purestorage.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'include/target/target_core_device.h')
-rw-r--r--include/target/target_core_device.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/target/target_core_device.h b/include/target/target_core_device.h
index 96586cc9498..f3b6ae65545 100644
--- a/include/target/target_core_device.h
+++ b/include/target/target_core_device.h
@@ -39,6 +39,7 @@ extern int se_dev_set_emulate_tas(struct se_device *, int);
extern int se_dev_set_emulate_tpu(struct se_device *, int);
extern int se_dev_set_emulate_tpws(struct se_device *, int);
extern int se_dev_set_enforce_pr_isids(struct se_device *, int);
+extern int se_dev_set_is_nonrot(struct se_device *, int);
extern int se_dev_set_queue_depth(struct se_device *, u32);
extern int se_dev_set_max_sectors(struct se_device *, u32);
extern int se_dev_set_optimal_sectors(struct se_device *, u32);