11 Mar, 2016
1 commit
-
se_dev_entry.lun_flags and se_lun.lun_access are only used for keeping
track of read-write vs. read-only state. Since this is an either/or thing
we can represent it as bool, and remove the unneeded enum
transport_lunflags_table, which is left over from when there were more
flags.Change code that uses this enum to just use true/false, and make it clear
through variable and param names that true means read-only, false means
read-write.Signed-off-by: Andy Grover
Reviewed-by: Christoph Hellwig
Signed-off-by: Nicholas Bellinger
07 Jan, 2016
1 commit
-
This change sets the LBPRZ flag in EVPD page b2h and READ CAPACITY (16)
based on a new unmap_zeroes_data device attribute. This flag is set
automatically for iblock based on underlying block device queue's
discard_zeroes_data flag.Signed-off-by: Jamie Pocas
Signed-off-by: Nicholas Bellinger
12 Sep, 2015
1 commit
-
Pull SCSI target updates from Nicholas Bellinger:
"Here are the outstanding target-pending updates for v4.3-rc1.Mostly bug-fixes and minor changes this round. The fallout from the
big v4.2-rc1 RCU conversion have (thus far) been minimal.The highlights this round include:
- Move sense handling routines into scsi_common code (Sagi)
- Return ABORTED_COMMAND sense key for PI errors (Sagi)
- Add tpg_enabled_sendtargets attribute for disabled iscsi-target
discovery (David)- Shrink target struct se_cmd by rearranging fields (Roland)
- Drop iSCSI use of mutex around max_cmd_sn increment (Roland)
- Replace iSCSI __kernel_sockaddr_storage with sockaddr_storage (Andy +
Chris)- Honor fabric max_data_sg_nents I/O transfer limit (Arun + Himanshu +
nab)- Fix EXTENDED_COPY >= v4.1 regression OOPsen (Alex + nab)"
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (37 commits)
target: use stringify.h instead of own definition
target/user: Fix UFLAG_UNKNOWN_OP handling
target: Remove no-op conditional
target/user: Remove unused variable
target: Fix max_cmd_sn increment w/o cmdsn mutex regressions
target: Attach EXTENDED_COPY local I/O descriptors to xcopy_pt_sess
target/qla2xxx: Honor max_data_sg_nents I/O transfer limit
target/iscsi: Replace __kernel_sockaddr_storage with sockaddr_storage
target/iscsi: Replace conn->login_ip with login_sockaddr
target/iscsi: Keep local_ip as the actual sockaddr
target/iscsi: Fix np_ip bracket issue by removing np_ip
target: Drop iSCSI use of mutex around max_cmd_sn increment
qla2xxx: Update tcm_qla2xxx module description to 24xx+
iscsi-target: Add tpg_enabled_sendtargets for disabled discovery
drivers: target: Drop unlikely before IS_ERR(_OR_NULL)
target: check DPO/FUA usage for COMPARE AND WRITE
target: Shrink struct se_cmd by rearranging fields
target: Remove cmd->se_ordered_id (unused except debug log lines)
target: add support for START_STOP_UNIT SCSI opcode
target: improve unsupported opcode message
...
11 Sep, 2015
1 commit
-
This patch adds an optional fabric driver provided SGL limit
that target-core will honor as it's own internal I/O maximum
transfer length limit, as exposed by EVPD=0xb0 block limits
parameters.This is required for handling cases when host I/O transfer
length exceeds the requested EVPD block limits maximum
transfer length. The initial user of this logic is qla2xxx,
so that we can avoid having to reject I/Os from some legacy
FC hosts where EVPD=0xb0 parameters are not honored.When se_cmd payload length exceeds the provided limit in
target_check_max_data_sg_nents() code, se_cmd->data_length +
se_cmd->prot_length are reset with se_cmd->residual_count
plus underflow bit for outgoing TFO response callbacks.
It also checks for existing CDB level underflow + overflow
and recalculates final residual_count as necessary.Note this patch currently assumes 1:1 mapping of PAGE_SIZE
per struct scatterlist entry.Reported-by: Craig Watson
Cc: Craig Watson
Tested-by: Himanshu Madhani
Cc: Roland Dreier
Cc: Arun Easi
Cc: Giridhar Malavali
Cc: Andrew Vasquez
Cc: Christoph Hellwig
Cc: Hannes Reinecke
Cc: Martin K. Petersen
Signed-off-by: Nicholas Bellinger
19 Aug, 2015
1 commit
-
REPORT LUNS should not fail just because the allocation length is less
than 16. The relevant section of SPC-4 is:4.2.5.6 Allocation length
The ALLOCATION LENGTH field specifies the maximum number of bytes or
blocks that an application client has allocated in the Data-In
Buffer. The ALLOCATION LENGTH field specifies bytes unless a
different requirement is stated in the command definition.An allocation length of zero specifies that no data shall be
transferred. This condition shall not be considered an error.So we should just truncate our response rather than return an error.
Signed-off-by: Roland Dreier
Signed-off-by: Spencer Baugh
Signed-off-by: Nicholas Bellinger
03 Aug, 2015
1 commit
-
If an initiator doesn't have any real LUNs assigned, we should report
LUN 0 and a LUN list length of 1. Some versions of Solaris at least
go beserk if we report a LUN list length of 0.Signed-off-by: Roland Dreier
Cc: # v3.1+
Signed-off-by: Nicholas Bellinger
31 Jul, 2015
1 commit
-
Make the warning about unsupported SCSI opcode more useful:
- Add in the initiator name so we know who's sending it.
- Print the warning even for opcodes that spc_parse_cdb() knows about
but that we don't handle.Signed-off-by: Joern Engel
Signed-off-by: Spencer Baugh
Reviewed-by: Sagi Grimberg
Reviewed-by: Christoph Hellwig
Signed-off-by: Nicholas Bellinger
24 Jul, 2015
2 commits
-
In case a LU spans 64bit sectors, fixed size sense data information
field is only 32 bits which means the sector information will be truncated.Thus, if the LU spans 64bit sectors, use descriptor format sense data to
correctly report sector information.Reported-by: Christoph Hellwig
Reviewed-by: Christoph Hellwig
Reviewed-by: Hannes Reinecke
Reviewed-by: Martin K. Petersen
Signed-off-by: Sagi Grimberg
Signed-off-by: Nicholas Bellinger -
Instead of open coding the sense buffer construction, use
scsi scsi_build_sense_buffer() and scsi_set_sense_information()
helpers which moved to scsi_common.Signed-off-by: Sagi Grimberg
Reviewed-by: Christoph Hellwig
Reviewed-by: Hannes Reinecke
Reviewed-by: Martin K. Petersen
Signed-off-by: Nicholas Bellinger
07 Jul, 2015
2 commits
-
Cc: Sagi Grimberg
Signed-off-by: Nicholas Bellinger -
LIO supports protection types 1,3 so setting a hard-coded SPT=3
is fine for now.Signed-off-by: Sagi Grimberg
Signed-off-by: Nicholas Bellinger
05 Jul, 2015
1 commit
-
Pull SCSI target updates from Nicholas Bellinger:
"It's been a busy development cycle for target-core in a number of
different areas.The fabric API usage for se_node_acl allocation is now within
target-core code, dropping the external API callers for all fabric
drivers tree-wide.There is a new conversion to RCU hlists for se_node_acl and
se_portal_group LUN mappings, that turns fast-past LUN lookup into a
completely lockless code-path. It also removes the original
hard-coded limitation of 256 LUNs per fabric endpoint.The configfs attributes for backends can now be shared between core
and driver code, allowing existing drivers to use common code while
still allowing flexibility for new backend provided attributes.The highlights include:
- Merge sbc_verify_dif_* into common code (sagi)
- Remove iscsi-target support for obsolete IFMarker/OFMarker
(Christophe Vu-Brugier)
- Add bidi support in target/user backend (ilias + vangelis + agover)
- Move se_node_acl allocation into target-core code (hch)
- Add crc_t10dif_update common helper (akinobu + mkp)
- Handle target-core odd SGL mapping for data transfer memory
(akinobu)
- Move transport ID handling into target-core (hch)
- Move task tag into struct se_cmd + support 64-bit tags (bart)
- Convert se_node_acl->device_list[] to RCU hlist (nab + hch +
paulmck)
- Convert se_portal_group->tpg_lun_list[] to RCU hlist (nab + hch +
paulmck)
- Simplify target backend driver registration (hch)
- Consolidate + simplify target backend attribute implementations
(hch + nab)
- Subsume se_port + t10_alua_tg_pt_gp_member into se_lun (hch)
- Drop lun_sep_lock for se_lun->lun_se_dev RCU usage (hch + nab)
- Drop unnecessary core_tpg_register TFO parameter (nab)
- Use 64-bit LUNs tree-wide (hannes)
- Drop left-over TARGET_MAX_LUNS_PER_TRANSPORT limit (hannes)"* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (76 commits)
target: Bump core version to v5.0
target: remove target_core_configfs.h
target: remove unused TARGET_CORE_CONFIG_ROOT define
target: consolidate version defines
target: implement WRITE_SAME with UNMAP bit using ->execute_unmap
target: simplify UNMAP handling
target: replace se_cmd->execute_rw with a protocol_data field
target/user: Fix inconsistent kmap_atomic/kunmap_atomic
target: Send UA when changing LUN inventory
target: Send UA upon LUN RESET tmr completion
target: Send UA on ALUA target port group change
target: Convert se_lun->lun_deve_lock to normal spinlock
target: use 'se_dev_entry' when allocating UAs
target: Remove 'ua_nacl' pointer from se_ua structure
target_core_alua: Correct UA handling when switching states
xen-scsiback: Fix compile warning for 64-bit LUN
target: Remove TARGET_MAX_LUNS_PER_TRANSPORT
target: use 64-bit LUNs
target: Drop duplicate + unused se_dev_check_wce
target: Drop unnecessary core_tpg_register TFO parameter
...
02 Jun, 2015
1 commit
-
Only include SCSI initiator header files in target code that needs
these header files, namely the SCSI pass-through code and the tcm_loop
driver. Change SCSI_SENSE_BUFFERSIZE into TRANSPORT_SENSE_BUFFER in
target code because the former is intended for initiator code and the
latter for target code. With this patch the only initiator include
directives in target code that remain are as follows:$ git grep -nHE 'include .scsi/(scsi.h|scsi_host.h|scsi_device.h|scsi_cmnd.h)' drivers/target drivers/infiniband/ulp/{isert,srpt} drivers/usb/gadget/legacy/tcm_*.[ch] drivers/{vhost,xen} include/{target,trace/events/target.h}
drivers/target/loopback/tcm_loop.c:29:#include
drivers/target/loopback/tcm_loop.c:31:#include
drivers/target/loopback/tcm_loop.c:32:#include
drivers/target/loopback/tcm_loop.c:33:#include
drivers/target/target_core_pscsi.c:39:#include
drivers/target/target_core_pscsi.c:40:#include
drivers/xen/xen-scsiback.c:52:#include /* SG_ALL */Signed-off-by: Bart Van Assche
Reviewed-by: Christoph Hellwig
Signed-off-by: James Bottomley
01 Jun, 2015
3 commits
-
With se_port and t10_alua_tg_pt_gp_member being absored into se_lun,
there is no need for an extra lock to protect se_lun->lun_se_dev
assignment.This patch also converts backend drivers to use call_rcu() release
to allow any se_device readers to complete. The call_rcu() instead
of kfree_rcu() is required here because se_device is embedded into
the backend driver specific structure.Also, convert se_lun->lun_stats to use atomic_long_t within the
target_complete_ok_work() completion callback, and add FIXME for
transport_lookup_tmr_lun() with se_lun->lun_ref.Finally, update sbp_update_unit_directory() special case usage with
proper rcu_dereference_raw() and configfs symlink comment.Reported-by: Christoph Hellwig
Reviewed-by: Hannes Reinecke
Cc: Paul E. McKenney
Cc: Chris Boot
Signed-off-by: Nicholas Bellinger -
This patch eliminates all se_port + t10_alua_tg_pt_gp_member usage,
and converts current users to direct se_lun pointer dereference.This includes the removal of core_export_port(), core_release_port()
core_dev_export() and core_dev_unexport(). Along with conversion
of special case se_lun pointer dereference within PR ALL_TG_PT=1
and ALUA access state transition UNIT_ATTENTION handling.Also, update core_enable_device_list_for_node() to reference the
new per se_lun->lun_deve_list when creating a new entry, or
replacing an existing one via RCU.Signed-off-by: Christoph Hellwig
Reviewed-by: Hannes Reinecke
Signed-off-by: Nicholas Bellinger -
This patch converts se_node_acl->device_list[] table for mappedluns
to modern RCU hlist_head usage in order to support an arbitrary number
of node_acl lun mappings.It converts transport_lookup_*_lun() fast-path code to use RCU read path
primitives when looking up se_dev_entry. It adds a new hlist_head at
se_node_acl->lun_entry_hlist for this purpose.For transport_lookup_cmd_lun() code, it works with existing per-cpu
se_lun->lun_ref when associating se_cmd with se_lun + se_device.
Also, go ahead and update core_create_device_list_for_node() +
core_free_device_list_for_node() to use ->lun_entry_hlist.It also converts se_dev_entry->pr_ref_count access to use modern
struct kref counting, and updates core_disable_device_list_for_node()
to kref_put() and block on se_deve->pr_comp waiting for outstanding PR
special-case PR references to drop, then invoke kfree_rcu() to wait
for the RCU grace period to complete before releasing memory.So now that se_node_acl->lun_entry_hlist fast path access uses RCU
protected pointers, go ahead and convert remaining non-fast path
RCU updater code using ->lun_entry_lock to struct mutex to allow
callers to block while walking se_node_acl->lun_entry_hlist.Finally drop the left-over core_clear_initiator_node_from_tpg() that
originally cleared lun_access during se_node_acl shutdown, as post
RCU conversion it now becomes duplicated logic.Reviewed-by: Hannes Reinecke
Cc: Christoph Hellwig
Cc: Sagi Grimberg
Cc: Paul E. McKenney
Signed-off-by: Nicholas Bellinger
31 May, 2015
2 commits
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Now that we store the protocol identifier in the tpg structure we don't
need this method.Signed-off-by: Christoph Hellwig
Signed-off-by: Nicholas Bellinger -
Drivers may override the WCE flag, in which case the DPOFUA flag in
MODE SENSE might differ from the check used to reject invalid FUA
bits in sbc_check_dpofua. Also now that we reject invalid FUA
bits early there is no need to duplicate the same buggy check
down in the fileio code.As the DPOFUA flag controls th support for FUA bits on read and
write commands as well as DPO key off all the checks off a single
helper, and deprecate the emulate_dpo and emulate_fua_read attributs.This fixes various failures in the libiscsi testsuite.
Personally I'd prefer to also remove the emulate_fua_write attribute
as there is no good reason to disable it, but I'll leave that for
a separate discussion.Signed-off-by: Christoph Hellwig
Signed-off-by: Nicholas Bellinger
25 Apr, 2015
1 commit
-
Pull SCSI target updates from Nicholas Bellinger:
"Lots of activity in target land the last months.The highlights include:
- Convert fabric drivers tree-wide to target_register_template() (hch
+ bart)- iser-target hardening fixes + v1.0 improvements (sagi)
- Convert iscsi_thread_set usage to kthread.h + kill
iscsi_target_tq.c (sagi + nab)- Add support for T10-PI WRITE_STRIP + READ_INSERT operation (mkp +
sagi + nab)- DIF fixes for CONFIG_DEBUG_SG=y + UNMAP file emulation (akinobu +
sagi + mkp)- Extended TCMU ABI v2 for future BIDI + DIF support (andy + ilias)
- Fix COMPARE_AND_WRITE handling for NO_ALLLOC drivers (hch + nab)
Thanks to everyone who contributed this round with new features,
bug-reports, fixes, cleanups and improvements.Looking forward, it's currently shaping up to be a busy v4.2 as well"
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (69 commits)
target: Put TCMU under a new config option
target: Version 2 of TCMU ABI
target: fix tcm_mod_builder.py
target/file: Fix UNMAP with DIF protection support
target/file: Fix SG table for prot_buf initialization
target/file: Fix BUG() when CONFIG_DEBUG_SG=y and DIF protection enabled
target: Make core_tmr_abort_task() skip TMFs
target/sbc: Update sbc_dif_generate pr_debug output
target/sbc: Make internal DIF emulation honor ->prot_checks
target/sbc: Return INVALID_CDB_FIELD if DIF + sess_prot_type disabled
target: Ensure sess_prot_type is saved across session restart
target/rd: Don't pass incomplete scatterlist entries to sbc_dif_verify_*
target: Remove the unused flag SCF_ACK_KREF
target: Fix two sparse warnings
target: Fix COMPARE_AND_WRITE with SG_TO_MEM_NOALLOC handling
target: simplify the target template registration API
target: simplify target_xcopy_init_pt_lun
target: remove the unused SCF_CMD_XCOPY_PASSTHROUGH flag
target/rd: reduce code duplication in rd_execute_rw()
tcm_loop: fixup tpgt string to integer conversion
...
08 Apr, 2015
1 commit
-
This patch updates standard INQUIRY, INQUIRY EVPD=0x86, READ_CAPACITY_16
and control mode pages to use se_sess->sess_prot_type when determing which
type of T10-PI related feature bits can be exposed.This is required for fabric sessions supporting T10-PI metadata to
backend devices that don't have protection enabled.Reviewed-by: Martin Petersen
Reviewed-by: Sagi Grimberg
Cc: Christoph Hellwig
Cc: Doug Gilbert
Signed-off-by: Nicholas Bellinger
27 Mar, 2015
1 commit
-
Signed-off-by: Christoph Hellwig
Signed-off-by: Nicholas Bellinger
20 Mar, 2015
1 commit
-
A check that rejects a CDB with FUA bit set if no write cache is
emulated was added by the following commit:fde9f50 target: Add sanity checks for DPO/FUA bit usage
The condition is as follows:
if (!dev->dev_attrib.emulate_fua_write ||
!dev->dev_attrib.emulate_write_cache)However, this check is wrong if the backend device supports WCE but
"emulate_write_cache" is disabled.This patch uses se_dev_check_wce() (previously named
spc_check_dev_wce) to invoke transport->get_write_cache() if the
device has a write cache or check the "emulate_write_cache" attribute
otherwise.Reported-by: Christoph Hellwig
Signed-off-by: Christophe Vu-Brugier
Signed-off-by: Nicholas Bellinger
22 Feb, 2015
1 commit
-
Pull SCSI target updates from Nicholas Bellinger:
"The highlights this round include:- Update vhost-scsi to support F_ANY_LAYOUT using mm/iov_iter.c
logic, and signal VERSION_1 support (MST + Viro + nab)- Fix iscsi/iser-target to remove problematic active_ts_set usage
(Gavin Guo)- Update iscsi/iser-target to support multi-sequence sendtargets
(Sagi)- Fix original PR_APTPL_BUF_LEN 8k size limitation (Martin Svec)
- Add missing WRITE_SAME end-of-device sanity check (Bart)
- Check for LBA + sectors wrap-around in sbc_parse_cdb() (nab)
- Other various minor SPC/SBC compliance fixes based upon Ronnie
Sahlberg test suite (nab)"* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (32 commits)
target: Set LBPWS10 bit in Logical Block Provisioning EVPD
target: Fail UNMAP when emulate_tpu=0
target: Fail WRITE_SAME w/ UNMAP=1 when emulate_tpws=0
target: Add sanity checks for DPO/FUA bit usage
target: Perform PROTECT sanity checks for WRITE_SAME
target: Fail I/O with PROTECT bit when protection is unsupported
target: Check for LBA + sectors wrap-around in sbc_parse_cdb
target: Add missing WRITE_SAME end-of-device sanity check
iscsi-target: Avoid IN_LOGOUT failure case for iser-target
target: Fix PR_APTPL_BUF_LEN buffer size limitation
iscsi-target: Drop problematic active_ts_list usage
iscsi/iser-target: Support multi-sequence sendtargets text response
iser-target: Remove duplicate function names
vhost/scsi: potential memory corruption
vhost/scsi: Global tcm_vhost -> vhost_scsi rename
vhost/scsi: Drop left-over scsi_tcq.h include
vhost/scsi: Set VIRTIO_F_ANY_LAYOUT + VIRTIO_F_VERSION_1 feature bits
vhost/scsi: Add ANY_LAYOUT support in vhost_scsi_handle_vq
vhost/scsi: Add ANY_LAYOUT iov -> sgl mapping prerequisites
vhost/scsi: Change vhost_scsi_map_to_sgl to accept iov ptr + len
...
14 Feb, 2015
1 commit
-
This patch sets the missing LBPWS10 bit within spc_emulate_evpd_b2()
in order to signal WRITE_SAME (10) w/ UNMAP support, following the
existing LBPWS bit to signal WRITE_SAME (16) w/ UNMAP support.Cc: Martin Petersen
Cc: Christoph Hellwig
Signed-off-by: Nicholas Bellinger
10 Jan, 2015
1 commit
-
This patch drops the arbitrary maximum I/O size limit in sbc_parse_cdb(),
which currently for fabric_max_sectors is hardcoded to 8192 (4 MB for 512
byte sector devices), and for hw_max_sectors is a backend driver dependent
value.This limit is problematic because Linux initiators have only recently
started to honor block limits MAXIMUM TRANSFER LENGTH, and other non-Linux
based initiators (eg: MSFT Fibre Channel) can also generate I/Os larger
than 4 MB in size.Currently when this happens, the following message will appear on the
target resulting in I/Os being returned with non recoverable status:SCSI OP 28h with too big sectors 16384 exceeds fabric_max_sectors: 8192
Instead, drop both [fabric,hw]_max_sector checks in sbc_parse_cdb(),
and convert the existing hw_max_sectors into a purely informational
attribute used to represent the granuality that backend driver and/or
subsystem code is splitting I/Os upon.Also, update FILEIO with an explicit FD_MAX_BYTES check in fd_execute_rw()
to deal with the one special iovec limitiation case.v2 changes:
- Drop hw_max_sectors check in sbc_parse_cdb()Reported-by: Lance Gropper
Reported-by: Stefan Priebe
Cc: Christoph Hellwig
Cc: Martin K. Petersen
Cc: Roland Dreier
Cc: stable@vger.kernel.org # 3.4
Signed-off-by: Nicholas Bellinger
04 Dec, 2014
1 commit
-
For SPI drivers use the message definitions from scsi.h, and for target
drivers introduce a new TCM_*_TAG namespace.Signed-off-by: Christoph Hellwig
Reviewed-by: Bart Van Assche
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com
18 Sep, 2014
1 commit
-
This patch fixes an apparent cut and paste error in spc_emulate_evpd_b3(),
where lba_map_segment_size was being used twice for the Referrals VPD.Go ahead and set the correct user data segment multiplier instead of
user data segment size.Signed-off-by: Sebastian Herbszt
Signed-off-by: Nicholas Bellinger
12 Jun, 2014
1 commit
-
When an initiator sends an allocation length bigger than what its
command consumes, the target should only return the actual response data
and set the residual length to the unused part of the allocation length.Add a helper function that command handlers (INQUIRY, READ CAPACITY,
etc) can use to do this correctly, and use this code to get the correct
residual for commands that don't use the full initiator allocation in the
handlers for READ CAPACITY, READ CAPACITY(16), INQUIRY, MODE SENSE and
REPORT LUNS.This addresses a handful of failures as reported by Christophe with
the Windows Certification Kit:http://permalink.gmane.org/gmane.linux.scsi.target.devel/6515
Signed-off-by: Roland Dreier
Tested-by: Christophe Vu-Brugier
Cc: stable@vger.kernel.org # 3.10+
Signed-off-by: Nicholas Bellinger
07 Jun, 2014
1 commit
-
Signed-off-by: Christophe Vu-Brugier
Signed-off-by: Nicholas Bellinger
07 Apr, 2014
2 commits
-
Only expose the control modepage bit for Application Tag Owner (ATO)
if the session + fabric support DIX PASS operations.Reviewed-by: Sagi Grimberg
Cc: Martin K. Petersen
Cc: Or Gerlitz
Cc: Quinn Tran
Cc: Giridhar Malavali
Signed-off-by: Nicholas Bellinger -
Only expose standard INQUIRY PROTECT=1 and EVPD=0x86 TYPE1/TYPE3
PI control bits if the session + fabric support DIX PASS operations.Reviewed-by: Sagi Grimberg
Cc: Martin K. Petersen
Cc: Or Gerlitz
Cc: Quinn Tran
Cc: Giridhar Malavali
Signed-off-by: Nicholas Bellinger
13 Feb, 2014
1 commit
-
Commit fbfe858fea2a ("target_core_spc: Include target device
descriptor in VPD page 83") added a new length variable, but (due to a
cut and paste mistake?) just checks scsi_name_len against 256 twice.
Fix this to check scsi_target_len for overflow too.Signed-off-by: Roland Dreier
Signed-off-by: Nicholas Bellinger
18 Jan, 2014
3 commits
-
This patch updates spc_modesense_control() to set the Application
Tag Owner (ATO) bit when when DIF emulation is enabled by the
backend device.Reviewed-by: Martin K. Petersen
Cc: Christoph Hellwig
Cc: Hannes Reinecke
Cc: Sagi Grimberg
Cc: Or Gerlitz
Signed-off-by: Nicholas Bellinger -
This patch updates spc_emulate_evpd_86() (extended INQUIRY) to
report GRD_CHK (Guard Check) and REF_CHK (Reference Check) bits
when DIF emulation is enabled by the backend device.Reviewed-by: Martin K. Petersen
Cc: Christoph Hellwig
Cc: Hannes Reinecke
Cc: Sagi Grimberg
Cc: Or Gerlitz
Signed-off-by: Nicholas Bellinger -
This patch updates spc_emulate_inquiry_std() to set the
PROTECT bit when DIF emulation is enabled by the backend
device.Reviewed-by: Martin K. Petersen
Cc: Christoph Hellwig
Cc: Hannes Reinecke
Cc: Sagi Grimberg
Cc: Or Gerlitz
Signed-off-by: Nicholas Bellinger
10 Jan, 2014
2 commits
-
This patch converts the temporary buffer in spc_emulate_inquiry() to
use dynamically allocated memory, instead of local stack memory.Also bump SE_INQUIRY_BUF up to 1024 bytes to be safe when handling
multiple large SCSI name descriptors for EVPD=0x83.Signed-off-by: Nicholas Bellinger
-
Add infrastructure for referrals.
v2 changes:
- Fix unsigned long long division in core_alua_state_lba_dependent on
32-bit (Fengguang + Chen + Hannes)
- Fix compile warning in core_alua_state_lba_dependent (nab)
- Convert segment_* + sectors variables in core_alua_state_lba_dependent
to u64 (Hannes)Signed-off-by: Hannes Reinecke
Signed-off-by: Nicholas Bellinger
18 Dec, 2013
2 commits
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We should be including a descriptor referring to the target device
to allow identification of different TCM instances.(nab: Bump SE_INQUIRY_BUF to 1024 bytes to handle 2x 256 byte SCSI names)
Signed-off-by: Hannes Reinecke
Signed-off-by: Nicholas Bellinger -
scsi_name_len in spc_emulate_evpd_83 is calculated twice, with
the results of the first calculation discarded. So remove it.
And check for the maximum allowed length, too.Signed-off-by: Hannes Reinecke
Signed-off-by: Nicholas Bellinger
21 Nov, 2013
1 commit
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Signed-off-by: Hannes Reinecke
Signed-off-by: Nicholas Bellinger