10 Dec, 2016
1 commit
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Remove superfluous #include directives from the include/target/*.h
files. Add missing #include directives to other *.h and *.c files.
Use forward declarations for structures where possible. This
change reduces the build time for make M=drivers/target on my
laptop from 27.1s to 18.7s or by about 30%.Signed-off-by: Bart Van Assche
Cc: Christoph Hellwig
Cc: Bryant G. Ly
16 Jun, 2015
1 commit
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As we're now using a list to hold the LUNs the target core
can now converted to use 64-bit LUNs internally.Signed-off-by: Hannes Reinecke
Signed-off-by: Nicholas Bellinger
04 Oct, 2014
1 commit
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This patch fixes a bug in handling of SPC-3 PR Activate Persistence
across Target Power Loss (APTPL) logic where re-creation of state for
MappedLUNs from dynamically generated NodeACLs did not occur during
I_T Nexus establishment.It adds the missing core_scsi3_check_aptpl_registration() call during
core_tpg_check_initiator_node_acl() -> core_tpg_add_node_to_devs() in
order to replay any pre-loaded APTPL metadata state associated with
the newly connected SCSI Initiator Port.Cc: Mike Christie
Cc:
Signed-off-by: Nicholas Bellinger
10 Jan, 2014
1 commit
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Move prototype declaration of function
spc_parse_naa_6h_vendor_specific() from target_core_xcopy.c to header
file target_core_pr.h because it is used by more than one file.This eliminates the following warning in target_core_spc.c:
drivers/target/target_core_spc.c:138:6: warning: no previous prototype for ‘spc_parse_naa_6h_vendor_specific’ [-Wmissing-prototypes]Signed-off-by: Rashika Kheria
Reviewed-by: Josh Triplett
Signed-off-by: Nicholas Bellinger
14 Jun, 2013
1 commit
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We use this function exclusively in debug prints. Instead of returning
0 or 1 if isid is present, just set buf to "" if it isn't there. This
saves callers from having to check the return value.Signed-off-by: Andy Grover
Signed-off-by: Nicholas Bellinger
07 Nov, 2012
3 commits
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Pass the sense reason as an explicit return value from the I/O submission
path instead of storing it in struct se_cmd and using negative return
values. This cleans up a lot of the code pathes, and with the sparse
annotations for the new sense_reason_t type allows for much better
error checking.(nab: Convert spc_emulate_modesense + spc_emulate_modeselect to use
sense_reason_t with Roland's MODE SELECT changes)Signed-off-by: Christoph Hellwig
Cc: Roland Dreier
Signed-off-by: Nicholas Bellinger -
We do not support host-level reservations for the pscsi backend, and all
virtual backends are newere than SCSI-2, so just make the combined
SPC-3 + SCSI-2 support the only supported variant and kill the switches
for the different implementations, given that this code handles the no-op
version just fine.(hch: Update DRF_SPC2_RESERVATIONS lock usage)
Signed-off-by: Christoph Hellwig
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Simplify the code a lot by killing the superflous struct se_subsystem_dev.
Instead se_device is allocated early on by the backend driver, which allocates
it as part of its own per-device structure, borrowing the scheme that is for
example used for inode allocation.Signed-off-by: Christoph Hellwig
Signed-off-by: Nicholas Bellinger
07 May, 2012
1 commit
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Make CDB emulation work on commands instead of tasks again as a preparation
of removing tasks completely.Signed-off-by: Christoph Hellwig
Signed-off-by: Nicholas Bellinger
14 Dec, 2011
1 commit
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And make it static afterwards.
Signed-off-by: Joern Engel
Signed-off-by: Nicholas Bellinger
04 Nov, 2011
3 commits
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We want to be able to handle all CDBs through it and remove hacks like
always using the first task in a CDB in target_report_luns.Also rename the callback to ->execute_task to better describe its use.
Signed-off-by: Christoph Hellwig
Signed-off-by: Nicholas Bellinger -
Split core_scsi2_emulate_crh into one routine each for the
PERSISTENT_RESERVE_IN and PERSISTENT_RESERVE_OUT side.Signed-off-by: Christoph Hellwig
Signed-off-by: Nicholas Bellinger -
Split core_scsi2_emulate_crh into one routine each for the reserve and
release side. The common code now is in a helper called by both
routines.Signed-off-by: Christoph Hellwig
Signed-off-by: Nicholas Bellinger
22 Jul, 2011
1 commit
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This patch contains the squashed version of a number of cleanups and
minor fixes from Andy's initial series (round 1) for target core this
past spring. The condensed log looks like:target: use errno values instead of returning -1 for everything
target: Rename transport_calc_sg_num to transport_init_task_sg
target: Fix leak in error path in transport_init_task_sg
target/pscsi: Remove pscsi_get_sh() usage
target: Make two runtime checks into WARN_ONs
target: Remove hba queue depth and convert to spin_lock_irq usage
target: dev->dev_status_queue_obj is unused
target: Make struct se_queue_req.cmd type struct se_cmd *
target: Remove __transport_get_qr_from_queue()
target: Rename se_dev->g_se_dev_list to se_dev_node
target: Remove struct se_global
target: Simplify scsi mib index table code
target: Make dev_queue_obj a member of se_device instead of a pointer
target: remove extraneous returns at end of void functions
target: Ensure transport_dump_vpd_ident_type returns null-terminated str
target: Function pointers don't need to use '&' to be assigned
target: Fix comment in __transport_execute_tasks()
target: Misc style cleanups
target: rename struct pr_reservation_template to pr_reservation
target: Remove #defines that just perform indirection
target: Inline transport_get_task_from_execute_queue()
target: Minor header comment fixesSigned-off-by: Andy Grover
Signed-off-by: Nicholas Bellinger
15 Jan, 2011
1 commit
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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 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