diff options
| 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 /drivers/target/target_core_mib.h | |
| parent | f4013c3879d1bbd9f3ab8351185decd049502368 (diff) | |
[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 'drivers/target/target_core_mib.h')
| -rw-r--r-- | drivers/target/target_core_mib.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/target/target_core_mib.h b/drivers/target/target_core_mib.h new file mode 100644 index 000000000000..277204633850 --- /dev/null +++ b/drivers/target/target_core_mib.h @@ -0,0 +1,28 @@ +#ifndef TARGET_CORE_MIB_H +#define TARGET_CORE_MIB_H + +typedef enum { + SCSI_INST_INDEX, + SCSI_DEVICE_INDEX, + SCSI_AUTH_INTR_INDEX, + SCSI_INDEX_TYPE_MAX +} scsi_index_t; + +struct scsi_index_table { + spinlock_t lock; + u32 scsi_mib_index[SCSI_INDEX_TYPE_MAX]; +} ____cacheline_aligned; + +/* SCSI Port stats */ +struct scsi_port_stats { + u64 cmd_pdus; + u64 tx_data_octets; + u64 rx_data_octets; +} ____cacheline_aligned; + +extern int init_scsi_target_mib(void); +extern void remove_scsi_target_mib(void); +extern void init_scsi_index_table(void); +extern u32 scsi_get_new_index(scsi_index_t); + +#endif /*** TARGET_CORE_MIB_H ***/ |