c66ac9db8d
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
44 lines
1.2 KiB
C
44 lines
1.2 KiB
C
#ifndef TARGET_CORE_TMR_H
|
|
#define TARGET_CORE_TMR_H
|
|
|
|
/* task management function values */
|
|
#ifdef ABORT_TASK
|
|
#undef ABORT_TASK
|
|
#endif /* ABORT_TASK */
|
|
#define ABORT_TASK 1
|
|
#ifdef ABORT_TASK_SET
|
|
#undef ABORT_TASK_SET
|
|
#endif /* ABORT_TASK_SET */
|
|
#define ABORT_TASK_SET 2
|
|
#ifdef CLEAR_ACA
|
|
#undef CLEAR_ACA
|
|
#endif /* CLEAR_ACA */
|
|
#define CLEAR_ACA 3
|
|
#ifdef CLEAR_TASK_SET
|
|
#undef CLEAR_TASK_SET
|
|
#endif /* CLEAR_TASK_SET */
|
|
#define CLEAR_TASK_SET 4
|
|
#define LUN_RESET 5
|
|
#define TARGET_WARM_RESET 6
|
|
#define TARGET_COLD_RESET 7
|
|
#define TASK_REASSIGN 8
|
|
|
|
/* task management response values */
|
|
#define TMR_FUNCTION_COMPLETE 0
|
|
#define TMR_TASK_DOES_NOT_EXIST 1
|
|
#define TMR_LUN_DOES_NOT_EXIST 2
|
|
#define TMR_TASK_STILL_ALLEGIANT 3
|
|
#define TMR_TASK_FAILOVER_NOT_SUPPORTED 4
|
|
#define TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED 5
|
|
#define TMR_FUNCTION_AUTHORIZATION_FAILED 6
|
|
#define TMR_FUNCTION_REJECTED 255
|
|
|
|
extern struct kmem_cache *se_tmr_req_cache;
|
|
|
|
extern struct se_tmr_req *core_tmr_alloc_req(struct se_cmd *, void *, u8);
|
|
extern void core_tmr_release_req(struct se_tmr_req *);
|
|
extern int core_tmr_lun_reset(struct se_device *, struct se_tmr_req *,
|
|
struct list_head *, struct se_cmd *);
|
|
|
|
#endif /* TARGET_CORE_TMR_H */
|