target: Implement Block Device Characteristics VPD page
authorRoland Dreier <roland@purestorage.com>
Tue, 5 Jul 2011 20:34:52 +0000 (13:34 -0700)
committerNicholas Bellinger <nab@linux-iscsi.org>
Fri, 22 Jul 2011 09:37:47 +0000 (09:37 +0000)
commite22a7f075226c51f3f71b922e9eeb4f99fac1475
treee0a04f974153136eafe13793ee59be58c37c5ffc
parentb2eb705e00a9b9a9b3122192a7ab3e9058f0c48a
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>
drivers/target/target_core_cdb.c
drivers/target/target_core_configfs.c
drivers/target/target_core_device.c
drivers/target/target_core_iblock.c
include/target/target_core_base.h
include/target/target_core_device.h
include/target/target_core_transport.h