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This patch adds the TCM_Loop Linux/SCSI LLD fabric module for accessing TCM device backstores as locally accessable SCSI LUNs in virtual SAS, FC, and iSCSI Target ports using the generic fabric TransportID and Target Port WWN naming handlers from TCM's target_core_fabric_lib.c The TCM_Loop module uses the generic fabric configfs infratructure provided by target_core_fabric_configfs.c and adds a module dependent attribute for the creation/release of the virtual I_T Nexus connected the TCM_Loop Target and Initiator Ports. TCM_Loop can also be used with scsi-generic and BSG drivers so that STGT userspace fabric modules, QEMU-KVM and other hypervisor SCSI passthrough support can access TCM device backstore and control CDB emulation. For more information please see: http://linux-iscsi.org/wiki/Tcm_loop [jejb: fixed up checkpatch stuff] Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
12 lines
391 B
Plaintext
12 lines
391 B
Plaintext
config LOOPBACK_TARGET
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tristate "TCM Virtual SAS target and Linux/SCSI LDD fabric loopback module"
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help
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Say Y here to enable the TCM Virtual SAS target and Linux/SCSI LLD
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fabric loopback module.
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config LOOPBACK_TARGET_CDB_DEBUG
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bool "TCM loopback fabric module CDB debug code"
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depends on LOOPBACK_TARGET
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help
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Say Y here to enable the TCM loopback fabric module CDB debug code
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