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scsi: target: core: Add common tpg/enable attribute

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Many fabric modules provide their own implementation of enable attribute in
tpg.

Provide a way to remove code duplication in the fabric modules and
automatically add "enable" attribute if a fabric module has an
implementation of fabric_enable_tpg().

Link: https://lore.kernel.org/r/20210910084133.17956-2-d.bogdanov@yadro.com
Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Dmitry Bogdanov <d.bogdanov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Dmitry Bogdanov
2021-09-10 11:41:27 +03:00
committed by Martin K. Petersen
parent cdf7f6a10d
commit 80ed33c8ba
4 changed files with 79 additions and 2 deletions
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1
include/target/target_core_base.h
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@@ -900,6 +900,7 @@ struct se_portal_group {
* Negative values can be used by fabric drivers for internal use TPGs.
*/
int proto_id;
bool enabled;
/* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */
atomic_t tpg_pr_ref_count;
/* Spinlock for adding/removing ACLed Nodes */