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target: Add Third Party Copy (3PC) bit in INQUIRY response

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This patch adds the Third Party Copy (3PC) bit to signal support
for EXTENDED_COPY within standard inquiry response data.

Also add emulate_3pc device attribute in configfs (enabled by default)
to allow the exposure of this bit to be disabled, if necessary.

Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Martin Petersen <martin.petersen@oracle.com>
Cc: Chris Mason <chris.mason@fusionio.com>
Cc: Roland Dreier <roland@purestorage.com>
Cc: Zach Brown <zab@redhat.com>
Cc: James Bottomley <JBottomley@Parallels.com>
Cc: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Nicholas Bellinger <nab@daterainc.com>
This commit is contained in:
Nicholas Bellinger
2013-08-22 14:17:20 -07:00
committed by Nicholas Bellinger
parent 04b1b79546
commit d397a445f4
5 changed files with 28 additions and 0 deletions
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include/target/target_core_base.h
+3
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@@ -99,6 +99,8 @@
#define DA_EMULATE_TPWS 0
/* Emulation for CompareAndWrite (AtomicTestandSet) by default */
#define DA_EMULATE_CAW 1
/* Emulation for 3rd Party Copy (ExtendedCopy) by default */
#define DA_EMULATE_3PC 1
/* No Emulation for PSCSI by default */
#define DA_EMULATE_ALUA 0
/* Enforce SCSI Initiator Port TransportID with 'ISID' for PR */
@@ -606,6 +608,7 @@ struct se_dev_attrib {
int emulate_tpu;
int emulate_tpws;
int emulate_caw;
int emulate_3pc;
int enforce_pr_isids;
int is_nonrot;
int emulate_rest_reord;