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| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2010-12-17 11:11:26 -0800 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2011-01-14 10:12:29 -0600 |
| commit | c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 (patch) | |
| tree | 71c6344688bf56ea6aaf18c586ab69ff4f077ade /include/target/target_core_tmr.h | |
| parent | f4013c3879d1bbd9f3ab8351185decd049502368 (diff) | |
| download | kernel_samsung_aries-c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5.zip kernel_samsung_aries-c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5.tar.gz kernel_samsung_aries-c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5.tar.bz2 | |
[SCSI] target: Add LIO target core v4.0.0-rc6
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>
Diffstat (limited to 'include/target/target_core_tmr.h')
| -rw-r--r-- | include/target/target_core_tmr.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/include/target/target_core_tmr.h b/include/target/target_core_tmr.h new file mode 100644 index 0000000..6c8248b --- /dev/null +++ b/include/target/target_core_tmr.h @@ -0,0 +1,43 @@ +#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 */ |