linux/drivers/target/Kconfig
Nicholas Bellinger c66ac9db8d [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>
2011-01-14 10:12:29 -06:00

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menuconfig TARGET_CORE
tristate "Generic Target Core Mod (TCM) and ConfigFS Infrastructure"
depends on SCSI && BLOCK
select CONFIGFS_FS
default n
help
Say Y or M here to enable the TCM Storage Engine and ConfigFS enabled
control path for target_core_mod. This includes built-in TCM RAMDISK
subsystem logic for virtual LUN 0 access
if TARGET_CORE
config TCM_IBLOCK
tristate "TCM/IBLOCK Subsystem Plugin for Linux/BLOCK"
help
Say Y here to enable the TCM/IBLOCK subsystem plugin for non-buffered
access to Linux/Block devices using BIO
config TCM_FILEIO
tristate "TCM/FILEIO Subsystem Plugin for Linux/VFS"
help
Say Y here to enable the TCM/FILEIO subsystem plugin for buffered
access to Linux/VFS struct file or struct block_device
config TCM_PSCSI
tristate "TCM/pSCSI Subsystem Plugin for Linux/SCSI"
help
Say Y here to enable the TCM/pSCSI subsystem plugin for non-buffered
passthrough access to Linux/SCSI device
endif