Changes in Kconfig

075a5d35 - scsi: target: Add virtual remote target

Mon, 13 Mar 2023 18:11:10 +0000

scsi: target: Add virtual remote targetCreate virtual remote target module.This can be used to see a whole ACL/LUN/TPG configuration from all nodes instorage cluster. For example, it permits setting up remote ports in ALUAport groups. To report all ports in a cluster in REPORT TARGET PORT GROUPcommand.Suggested-by: Konstantin Shelekhin Signed-off-by: Dmitry Bogdanov Link: https://lore.kernel.org/r/20230313181110.20566-13-d.bogdanov@yadro.comReviewed-by: Mike Christie Signed-off-by: Martin K. Petersen List of files: /linux-6.15/drivers/target/Kconfig

33ff4ce4 - scsi: core: Rename CONFIG_BLK_SCSI_REQUEST to CONFIG_SCSI_COMMON

Sat, 24 Jul 2021 07:20:28 +0000

scsi: core: Rename CONFIG_BLK_SCSI_REQUEST to CONFIG_SCSI_COMMONCONFIG_BLK_SCSI_REQUEST is rather misnamed as it enables building a smallamount of code shared by the SCSI initiator, target, and consumers of thescsi_request passthrough API. Rename it and also allow building it as amodule.[mkp: add module license]Link: https://lore.kernel.org/r/20210724072033.1284840-20-hch@lst.deSigned-off-by: Christoph Hellwig Signed-off-by: Martin K. Petersen List of files: /linux-6.15/drivers/target/Kconfig

ec8f24b7 - treewide: Add SPDX license identifier - Makefile/Kconfig

Sun, 19 May 2019 12:07:45 +0000

treewide: Add SPDX license identifier - Makefile/KconfigAdd SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any formThese files fall under the project license, GPL v2 only. The resulting SPDXlicense identifier is: GPL-2.0-onlySigned-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/target/Kconfig

8a39a047 - target: don't depend on SCSI

Tue, 31 Jul 2018 19:51:49 +0000

target: don't depend on SCSIThe core target code only needs code from scsi_common.c, which is nowseparately selectable.Signed-off-by: Christoph Hellwig Signed-off-by: Kees Cook Signed-off-by: Jens Axboe List of files: /linux-6.15/drivers/target/Kconfig

14db4917 - target: Use sgl_alloc_order() and sgl_free()

Fri, 05 Jan 2018 16:26:50 +0000

target: Use sgl_alloc_order() and sgl_free()Use the sgl_alloc_order() and sgl_free() functions instead of opencoding these functions.Signed-off-by: Bart Van Assche Acked-by: Nicholas A. Bellinger Reviewed-by: Hannes Reinecke Cc: Christoph Hellwig Cc: Sagi Grimberg Signed-off-by: Jens Axboe List of files: /linux-6.15/drivers/target/Kconfig

72148aec - block: make scsi_request and scsi ioctl support optional

Sat, 28 Jan 2017 08:32:51 +0000

block: make scsi_request and scsi ioctl support optionalWe only need this code to support scsi, ide, cciss and virtio. And atleast for virtio it's a deprecated feature to start with.This should shrink the kernel size for embedded device that only use,say eMMC a bit.Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe List of files: /linux-6.15/drivers/target/Kconfig

68d4cef3 - target: Put TCMU under a new config option

Wed, 15 Apr 2015 00:30:05 +0000

target: Put TCMU under a new config optionConceptually version 2 should be viewed as an entirely new, incompatibleversion of TCMU, so emphasize this by changing the config option andKconfig text.Signed-off-by: Andy Grover Signed-off-by: Nicholas Bellinger List of files: /linux-6.15/drivers/target/Kconfig

7c9e7a6f - target: Add a user-passthrough backstore

Wed, 01 Oct 2014 23:07:05 +0000

target: Add a user-passthrough backstoreAdd a LIO storage engine that presents commands to userspace for execution.This would allow more complex backstores to be implemented out-of-kernel,and also make experimentation a-la FUSE (but at the SCSI level -- "SUSE"?)possible.It uses a mmap()able UIO device per LUN to share a command ring and dataarea. The commands are raw SCSI CDBs and iovs for in/out data. The commandring is also reused for returning scsi command status and optional sensedata.This implementation is based on Shaohua Li's earlier version but heavilymodified. Differences include:* Shared memory allocated by kernel, not locked-down user pages* Single ring for command request and response* Offsets instead of embedded pointers* Generic SCSI CDB passthrough instead of per-cmd specialization in ring format.* Uses UIO device instead of anon_file passed in mailbox.* Optional in-kernel handling of some commands.The main reason for these differences is to permit greater resiliencyif the user process dies or hangs.Things not yet implemented (on purpose):* Zero copy. The data area is flexible enough to allow page flipping or backend-allocated pages to be used by fabrics, but it's not clear these are performance wins. Can come later.* Out-of-order command completion by userspace. Possible to add by just allowing userspace to change cmd_id in rsp cmd entries, but currently not supported.* No locks between kernel cmd submission and completion routines. Sounds like it's possible, but this can come later.* Sparse allocation of mmaped area. Current code vmallocs the whole thing. If the mapped area was larger and not fully mapped then the driver would have more freedom to change cmd and data area sizes based on demand.Current code open issues:* The use of idrs may be overkill -- we maybe can replace them with a simple counter to generate cmd_ids, and a hash table to get a cmd_id's associated pointer.* Use of a free-running counter for cmd ring instead of explicit modulo math. This would require power-of-2 cmd ring size.(Add kconfig depends NET - Randy)Signed-off-by: Andy Grover Signed-off-by: Nicholas Bellinger List of files: /linux-6.15/drivers/target/Kconfig

ecebbf6c - target/iblock: Add blk_integrity + BIP passthrough support

Mon, 23 Dec 2013 20:31:24 +0000

target/iblock: Add blk_integrity + BIP passthrough supportThis patch adds blk_integrity passthrough support for block_devicebackends using IBLOCK.This includes iblock_alloc_bip() + setup of bio_integrity_payloadinformation that attaches to the leading struct bio once bio_listis populated during fast-path iblock_execute_rw() I/O dispatch.It also updates setup in iblock_configure_device() to detect modesof protection + se dev->dev_attrib.pi_prot_type accordingly, alongwith creating required bio_set integrity mempools.Cc: Martin K. Petersen Cc: Christoph Hellwig Cc: Hannes Reinecke Cc: Sagi Grimberg Cc: Or Gerlitz Signed-off-by: Nicholas Bellinger List of files: /linux-6.15/drivers/target/Kconfig

41861fa8 - target/sbc: Add DIF TYPE1+TYPE3 read/write verify emulation

Tue, 07 Jan 2014 22:44:57 +0000

target/sbc: Add DIF TYPE1+TYPE3 read/write verify emulationThis patch adds support for DIF read/write verify emulationfor TARGET_DIF_TYPE1_PROT + TARGET_DIF_TYPE3_PROT operation.This includes sbc_dif_verify_write() + sbc_dif_verify_read()calls accessable by backend drivers to perform DIF verifyfor SGL based data and protection information.Also included is sbc_dif_copy_prot() logic to copy protectioninformation to/from backend provided protection SGLs.Based on scsi_debug.c DIF TYPE1+TYPE3 emulation.v2 changes: - Select CRC_T10DIF for TARGET_CORE in Kconfig (Fengguang) - Drop IP checksum logic from sbc_dif_v1_verify (MKP) - Fix offset on app_tag = 0xffff in sbc_dif_verify_read()Cc: Martin K. Petersen Cc: Christoph Hellwig Cc: Hannes Reinecke Cc: Sagi Grimberg Cc: Or Gerlitz Signed-off-by: Nicholas Bellinger List of files: /linux-6.15/drivers/target/Kconfig

a511ce33 - sbp-target: Initial merge of firewire/ieee-1394 target mode support

Sun, 15 Apr 2012 00:50:35 +0000

sbp-target: Initial merge of firewire/ieee-1394 target mode supportThe FireWire SBP-2 Target is a driver for using an IEEE-1394 connectionas a SCSI transport. This module uses the SCSI Target framework toexpose LUNs to other machines attached to a FireWire bus, in effectacting as a FireWire hard disk similar to FireWire Target Disk modeon many Apple computers.This commit contains the squashed pull from Chris Boot's SBP-2-Target: https://github.com/bootc/Linux-SBP-2-Target.git patch-v3firewire-sbp-target: Add sbp_base.h headerfirewire-sbp-target: Add sbp_configfs.cfirewire-sbp-target: Add sbp_fabric.{c,h}firewire-sbp-target: Add sbp_management_agent.{c,h}firewire-sbp-target: Add sbp_login.{c,h}firewire-sbp-target: Add sbp_target_agent.{c,h}firewire-sbp-target: Add sbp_scsi_cmnd.{c,h}firewire-sbp-target: Add to target Kconfig and MakefileAlso add bootc's entry to the MAINTAINERS file. Great work Chris !!Signed-off-by: Chris Boot Acked-by: Stefan Richter Cc: Andy Grover Cc: Clemens Ladisch Signed-off-by: Nicholas Bellinger List of files: /linux-6.15/drivers/target/Kconfig

e48354ce - iscsi-target: Add iSCSI fabric support for target v4.1

Sat, 23 Jul 2011 06:43:04 +0000

iscsi-target: Add iSCSI fabric support for target v4.1The Linux-iSCSI.org target module is a full featured in-kernelsoftware implementation of iSCSI target mode (RFC-3720) for thecurrent WIP mainline target v4.1 infrastructure code for the v3.1kernel. More information can be found here:http://linux-iscsi.org/wiki/ISCSIThis includes support for: * RFC-3720 defined request / response state machines and support for all defined iSCSI operation codes from Section 10.2.1.2 using libiscsi include/scsi/iscsi_proto.h PDU definitions * Target v4.1 compatible control plane using the generic layout in target_core_fabric_configfs.c and fabric dependent attributes within /sys/kernel/config/target/iscsi/ subdirectories. * Target v4.1 compatible iSCSI statistics based on RFC-4544 (iSCSI MIBS) * Support for IPv6 and IPv4 network portals in M:N mapping to TPGs * iSCSI Error Recovery Hierarchy support * Per iSCSI connection RX/TX thread pair scheduling affinity * crc32c + crc32c_intel SSEv4 instruction offload support using libcrypto * CHAP Authentication support using libcrypto * Conversion to use internal SGl allocation with iscsit_alloc_buffs() -> transport_generic_map_mem_to_cmd()(nab: Fix iscsi_proto.h struct scsi_lun usage from linux-next in commit: iscsi: Use struct scsi_lun in iscsi structs instead of u8[8])(nab: Fix 32-bit compile warnings)Reviewed-by: Christoph Hellwig Reviewed-by: Andy Grover Acked-by: Roland Dreier Signed-off-by: Nicholas A. Bellinger List of files: /linux-6.15/drivers/target/Kconfig

3699d92a - [SCSI] tcm_fc: Adding FC_FC4 provider (tcm_fc) for FCoE target (TCM - target core) support

Mon, 18 Apr 2011 23:24:14 +0000

[SCSI] tcm_fc: Adding FC_FC4 provider (tcm_fc) for FCoE target (TCM - target core) supportThis is a comprehensive patch for FC-FC4 provider. tcm_fc is a FC-FC4provider which glues target core (TCM) with Fiber channel library(libfc). tcm_fc uses existing FC4 provider hooks from Fiber channellibrary. This Fiber channel library is used by FCoE (transport - FCover Ethernet) protocol driver as well.Combination of modules such as Fiber channel library, tcm_fc, TCMtarget core, and FCoE protocol driver enables functional FCoE target.This patch includes initial commit for tcm_fc plus additionalenhancement, bug fixes.This tcm_fc module essentially contains 3 entry points such as "prli","prlo", "recv". When process login request (ELS_PRLI) request isreceived, Fiber channel library (libfc) module calls passive providers(FC-FC4, tcm_fc) (if any registered) "prli" function. Likewise whenLOGO request is received, "prlo" function of passive provider isinvoked by libfc. For all other request (e.g. any read/write, taskmanagement, LUN inquiry commands), "recv" function of passiverprovider is invoked by libfc. Those passive providers "prli, prlo,recv" functions interact with TCM target core for requested operation.This module was primarily developed by "Joe Eykholt" and there weresignificant contributions from the people listed under signed-off.Signed-off-by: Joe Eykholt Signed-off-by: Nicholas A. Bellinger Signed-off-by: Christoph Hellwig Signed-off-by: Yi Zou Signed-off-by: Kiran Patil Acked-by: Robert Love Signed-off-by: James Bottomley Signed-off-by: James Bottomley List of files: /linux-6.15/drivers/target/Kconfig

3703b2c5 - [SCSI] tcm_loop: Add multi-fabric Linux/SCSI LLD fabric module

Fri, 18 Mar 2011 22:39:17 +0000

[SCSI] tcm_loop: Add multi-fabric Linux/SCSI LLD fabric moduleThis patch adds the TCM_Loop Linux/SCSI LLD fabric module foraccessing TCM device backstores as locally accessable SCSI LUNs invirtual SAS, FC, and iSCSI Target ports using the generic fabricTransportID and Target Port WWN naming handlers from TCM'starget_core_fabric_lib.c The TCM_Loop module uses the generic fabricconfigfs infratructure provided by target_core_fabric_configfs.c andadds a module dependent attribute for the creation/release of thevirtual I_T Nexus connected the TCM_Loop Target and Initiator Ports.TCM_Loop can also be used with scsi-generic and BSG drivers so thatSTGT userspace fabric modules, QEMU-KVM and other hypervisor SCSIpassthrough support can access TCM device backstore and control CDBemulation.For more information please see:http://linux-iscsi.org/wiki/Tcm_loop[jejb: fixed up checkpatch stuff]Signed-off-by: Nicholas A. Bellinger Reviewed-by: Christoph Hellwig Signed-off-by: James Bottomley List of files: /linux-6.15/drivers/target/Kconfig

c66ac9db - [SCSI] target: Add LIO target core v4.0.0-rc6

Fri, 17 Dec 2010 19:11:26 +0000

[SCSI] target: Add LIO target core v4.0.0-rc6LIO target is a full featured in-kernel target framework with thefollowing feature set:High-performance, non-blocking, multithreaded architecture with SIMDsupport.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 pluginsStorage 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 ALUASignificant 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 Signed-off-by: James Bottomley List of files: /linux-6.15/drivers/target/Kconfig