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| author |   Jamie Pocas <jamie.pocas@emc.com> | 2015-11-29 14:44:57 -0800 |
|---|---|---|
| committer |   Nicholas Bellinger <nab@linux-iscsi.org> | 2016-01-06 13:39:55 -0800 |
| commit | e6f41633cb79b55ead84b023c02035322c7827e7 (patch) | |
| tree | 342f55892f82d100f496c8ed73f3570c8d956842 /include/target | |
| parent | sbp-target: Remove a superfluous forward declaration (diff) | |
| download | linux-dev-e6f41633cb79b55ead84b023c02035322c7827e7.tar.xz linux-dev-e6f41633cb79b55ead84b023c02035322c7827e7.zip | |
target/sbc: Add LBPRZ attribute + control CDB emulation
This change sets the LBPRZ flag in EVPD page b2h and READ CAPACITY (16)
based on a new unmap_zeroes_data device attribute. This flag is set
automatically for iblock based on underlying block device queue's
discard_zeroes_data flag.
Signed-off-by: Jamie Pocas <jamie.pocas@emc.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'include/target')
| -rw-r--r-- | include/target/target_core_base.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index 0a2c74008e53..dc8b796dbcc7 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -63,6 +63,8 @@ #define DA_UNMAP_GRANULARITY_DEFAULT 0 /* Default unmap_granularity_alignment */ #define DA_UNMAP_GRANULARITY_ALIGNMENT_DEFAULT 0 +/* Default unmap_zeroes_data */ +#define DA_UNMAP_ZEROES_DATA_DEFAULT 0 /* Default max_write_same_len, disabled by default */ #define DA_MAX_WRITE_SAME_LEN 0 /* Use a model alias based on the configfs backend device name */ @@ -674,6 +676,7 @@ struct se_dev_attrib { int force_pr_aptpl; int is_nonrot; int emulate_rest_reord; + int unmap_zeroes_data; u32 hw_block_size; u32 block_size; u32 hw_max_sectors; |