| 281689051a628e5341ce1efcfafde9d60f2f6fbb |
|
15-Mar-2012 |
Jörn Engel <joern@logfs.org> |
target: remove obvious warnings
Get rid of a bunch of write-only variables. In a number of cases I
suspect actual bugs to be present, so I left all of those for a second
look.
(nab: fix lio-core patch fuzz)
Signed-off-by: Joern Engel <joern@logfs.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
|
| 00fdc6bbef77844ce397a7de7acfaf25e8e2e4eb |
|
14-Mar-2012 |
Nicholas Bellinger <nab@linux-iscsi.org> |
iscsi-target: Fix reservation conflict -EBUSY response handling bug
This patch addresses a iscsi-target specific bug related to reservation conflict
handling in iscsit_handle_scsi_cmd() that has been causing reservation conflicts
to complete and not fail as expected due to incorrect errno checking. The problem
occured with the change to return -EBUSY from transport_generic_cmd_sequencer() ->
transport_generic_allocate_tasks() failures, that broke iscsit_handle_scsi_cmd()
checking for -EINVAL in order to invoke a non GOOD status response.
This was manifesting itself as data corruption with legacy SPC-2 reservations,
but also effects iscsi-target LUNs with SPC-3 persistent reservations.
This bug was originally introduced in lio-core commit:
commit 03e98c9eb916f3f0868c1dc344dde2a60287ff72
Author: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Fri Nov 4 02:36:16 2011 -0700
target: Address legacy PYX_TRANSPORT_* return code breakage
Reported-by: Martin Svec <martin.svec@zoner.cz>
Cc: Martin Svec <martin.svec@zoner.cz>
Cc: Christoph Hellwig <hch@lst.de>
Cc: stable@vger.kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
|
| 99367f01b8df2018ff3328ddf4111e701d34188d |
|
27-Feb-2012 |
Nicholas Bellinger <nab@linux-iscsi.org> |
iscsi-target: Convert to use target_put_session + sess_kref
This patch converts iscsi-target session code to use se_sess->sess_kref
counting for iscsi session shutdown. The following cases include:
*) last iscsit_close_connection() shutdown path to invoke close session
*) iscsit_logout_post_handler_closesession() for explict logout
*) iscsit_free_session() caller for explict shutdown
It also moves iscsit_stop_session() call from lio_tpg_close_session()
into lio_tpg_shutdown_session() TFO callbacks to invoke an explict
shutdown, and also changes iscsi_check_for_session_reinstatement()
login code to use se_sess->sess_kref.
(v2: Make iscsit_handle_time2retain_timeout() use target_put_session)
Cc: Andy Grover <agrover@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
|
| d335e6054db616bce3f040e659fa38440518ad1d |
|
24-Feb-2012 |
Nicholas Bellinger <nab@linux-iscsi.org> |
iscsi-target: Fix iscsit_alloc_buffs() failure cases
Make iscsit_alloc_buffs() failure case for page_alloc_failed use correct
__free_page() SGL pointer, and return -ENOMEM for iscsit_allocate_iovecs
failure to push se_cmd->t_mem_sg release into iscsit_release_cmd()
callback during iscsit_add_reject_from_cmd() connection reset.
Also drop cmd->t_mem_sg = NULL assignment from page_alloc_failed
failure case.
Reported-by: Roland Dreier <roland@purestorage.com>
Cc: Andy Grover <agrover@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
|
| 4f26998a79b30a5c912cfa1a759fa0c3e6f6414e |
|
19-Jan-2012 |
Andy Grover <agrover@redhat.com> |
target/iscsi: Remove unneeded wrapper functions
iscsit_get_lun_for_{cmd,tmr} are unnecessary.
Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
|
| 7d680f3b74dd6f0f57569eeeee8c257790ceaa96 |
|
21-Dec-2011 |
Christoph Hellwig <hch@infradead.org> |
target: replace various cmd flags with a transport state
Replace various atomic_ts used as flags in struct se_cmd with a single
transport_state bitmap that requires t_state_lock to be held for modifications.
In the target core that assumption generally is true, but some recently added
code in the SRP target had to grow new lock calls. I can't say I like the way
how it messes with the command state directly, but let's leave that for later.
(Re-add missing ib_srpt.c changes that nab dropped..)
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
|
| 4040153087478993cbf0809f444400a3c808074c |
|
13-Feb-2012 |
Al Viro <viro@ftp.linux.org.uk> |
security: trim security.h
Trim security.h
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: James Morris <jmorris@namei.org>
|
| 2f9bc894c67dbacae5a6a9875818d2a18a918d18 |
|
17-Jan-2012 |
Nicholas Bellinger <nab@linux-iscsi.org> |
iscsi-target: Fix discovery with INADDR_ANY and IN6ADDR_ANY_INIT
This patch addresses a bug with sendtargets discovery where INADDR_ANY (0.0.0.0)
+ IN6ADDR_ANY_INIT ([0:0:0:0:0:0:0:0]) network portals where incorrectly being
reported back to initiators instead of the address of the connecting interface.
To address this, save local socket ->getname() output during iscsi login setup,
and makes iscsit_build_sendtargets_response() return these TargetAddress keys
when INADDR_ANY or IN6ADDR_ANY_INIT portals are in use.
Reported-by: Dax Kelson <dkelson@gurulabs.com>
Reported-by: Andy Grover <agrover@redhat.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: <stable@vger.kernel.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
|
| cd931ee62fd0258fc85c76a7c5499fe85e0f3436 |
|
17-Jan-2012 |
Nicholas Bellinger <nab@linux-iscsi.org> |
iscsi-target: Fix double list_add with iscsit_alloc_buffs reject
This patch fixes a bug where the iscsit_add_reject_from_cmd() call
from a failure to iscsit_alloc_buffs() was incorrectly passing
add_to_conn=1 and causing a double list_add after iscsi_cmd->i_list
had already been added in iscsit_handle_scsi_cmd().
Cc: <stable@vger.kernel.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
|
| 8359cf43b9dccddeebb0d247146719a14ce6371a |
|
24-Nov-2011 |
Jörn Engel <joern@logfs.org> |
target: remove useless casts
A reader should spend an extra moment whenever noticing a cast,
because either something special is going on that deserves extra
attention or, as is all too often the case, the code is wrong.
These casts, afaics, have all been useless. They cast a foo* to a
foo*, cast a void* to the assigned type, cast a foo* to void*, before
assigning it to a void* variable, etc.
In a few cases I also removed an additional &...[0], which is equally
useless.
Lastly I added three FIXMEs where, to the best of my judgement, the
code appears to have a bug. It would be good if someone could check
these.
Signed-off-by: Joern Engel <joern@logfs.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
|
| c4795fb20edf2fe2c862c8fe9f8b681edeb79ac1 |
|
16-Nov-2011 |
Christoph Hellwig <hch@infradead.org> |
target: header reshuffle, part2
This reorganized the headers under include/target into:
- target_core_base.h stays as is with all target-wide data stuctures and defines
- target_core_backend.h contains the whole interface to I/O backends
- target_core_fabric.h contains the whole interface to fabric modules
Except for those only the various configfs macro headers stay around.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
|
| 1c3d5794fc4a2afd2258b3aa6406377934a36663 |
|
17-Nov-2011 |
Thomas Meyer <thomas@m3y3r.de> |
iscsi-target: Use kmemdup rather than duplicating its implementation
The semantic patch that makes this change is available
in scripts/coccinelle/api/memdup.cocci.
Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
|
| 7ae0b1038f9f7d4c91e9afd4dbbc98210bf1a241 |
|
28-Nov-2011 |
Nicholas Bellinger <nab@linux-iscsi.org> |
iscsi-target: Add missing F_BIT for iscsi_tm_rsp
This patch sets the missing ISCSI_FLAG_CMD_FINAL bit in
iscsit_send_task_mgt_rsp() for a struct iscsi_tm_rsp PDU.
This usage is hardcoded for all TM response PDUs in RFC-3720
section 10.6.
Reported-by: whucecil <whucecil1999@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
|
| 7e46cf02687e40197ae07c623e660be2a2720064 |
|
16-Nov-2011 |
Nicholas Bellinger <nab@linux-iscsi.org> |
iscsi-target: Fix residual count hanlding + remove iscsi_cmd->residual_count
This patch fixes iscsi-target handling of underflow where residual data is
causing an OOPs by using the incorrect iscsi_cmd_t->data_length initially
assigned in iscsit_allocate_se_cmd(). It resets iscsi_cmd_t->data_length
from se_cmd_t->data_length after transport_generic_allocate_tasks()
has been invoked in iscsit_handle_scsi_cmd() RX context, and converts
iscsi_cmd->residual_count usage to access iscsi_cmd->se_cmd.residual_count
to get the proper residual count set by target-core.
Reported-by: <lists@internyc.net>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Andy Grover <agrover@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
|
| 03e98c9eb916f3f0868c1dc344dde2a60287ff72 |
|
04-Nov-2011 |
Nicholas Bellinger <nab@linux-iscsi.org> |
target: Address legacy PYX_TRANSPORT_* return code breakage
This patch removes legacy usage of PYX_TRANSPORT_* return codes in a number
of locations and addresses cases where transport_generic_request_failure()
was returning the incorrect sense upon CHECK_CONDITION status after the
v3.1 converson to use errno return codes.
This includes the conversion of transport_generic_request_failure() to
process cmd->scsi_sense_reason and handle extra TCM_RESERVATION_CONFLICT
before calling transport_send_check_condition_and_sense() to queue up
response status. It also drops PYX_TRANSPORT_OUT_OF_MEMORY_RESOURCES legacy
usgae, and returns TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE w/ a response
for these cases.
transport_generic_allocate_tasks(), transport_generic_new_cmd(), backend
SCF_SCSI_DATA_SG_IO_CDB ->do_task(), and emulated ->execute_task() have
all been updated to set se_cmd->scsi_sense_reason and return errno codes
universally upon failure. This includes cmd->scsi_sense_reason assignment
in target_core_alua.c, target_core_pr.c and target_core_cdb.c emulation code.
Finally it updates fabric modules to remove the legacy usage, and for
TFO->new_cmd_map() callers forwards return values outside of fabric code.
iscsi-target has also been updated to remove a handful of special cases
related to the cleanup and signaling QUEUE_FULL handling w/ ft_write_pending()
(v2: Drop extra SCF_SCSI_CDB_EXCEPTION check during failure from
transport_generic_new_cmd, and re-add missing task->task_error_status
assignment in transport_complete_task)
Cc: Christoph Hellwig <hch@lst.de>
Cc: stable@kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
|
| 5a4c8666c6d576f076a7c6824589cdbb984c0f84 |
|
28-Oct-2011 |
Nicholas Bellinger <nab@linux-iscsi.org> |
iscsi-target: Fix non-immediate TMR handling
This patch addresses two issues with non immediate TMR handling in
iscsit_handle_task_mgt_cmd(). The first involves breakage due to
v3.1-rc conversion of iscsit_sequence_cmd(), which upon good status
would hit the iscsit_add_reject_from_cmd() block of code. This patch
adds an explict check for CMDSN_ERROR_CANNOT_RECOVER.
The second adds a check to return when non immediate TMR operation is
detected after iscsit_ack_from_expstatsn(), as iscsit_sequence_cmd()
-> iscsit_execute_cmd() will have called transport_generic_handle_tmr()
for the non immediate TMR case already.
Cc: Andy Grover <agrover@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
|
| 7e32da55e26b80d57961681e53aa67938268db3f |
|
28-Oct-2011 |
Nicholas Bellinger <nab@linux-iscsi.org> |
iscsi-target: Add missing CMDSN_LOWER_THAN_EXP check in iscsit_handle_scsi_cmd
This patch adds a missing CMDSN_LOWER_THAN_EXP return check for
iscsit_sequence_cmd() in iscsit_handle_scsi_cmd() that was incorrectly
dropped during the v3.1-rc cleanups to use iscsit_sequence_cmd().
Cc: Andy Grover <agrover@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
|
| 827509e38e5a4a5ba65a745ec7b4b0278656d1ca |
|
30-Aug-2011 |
Paul Gortmaker <paul.gortmaker@windriver.com> |
drivers/target: Add module.h to drivers/target files as required.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
|
| c0427f155614908ca1147cd5b6a0d5cdcaef8327 |
|
12-Oct-2011 |
Christoph Hellwig <hch@infradead.org> |
target: Cleanup unused target_core_base.h bits
This is a squashed version of the following target_core_base.h
cleanup patches:
target: remove the unused SHUTDOWN_SIGS defintion
target: remove unused se_mem leftovers
target: remove the unused map_func_t typedef
target: move TRANSPORT_IOV_DATA_BUFFER to the iscsi-specific code
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
|
| d270190a75e5b859c6d8eed8d4095fbb45f78264 |
|
09-Oct-2011 |
Nicholas Bellinger <nab@linux-iscsi.org> |
iscsi-target: Remove SCF_SE_LUN_CMD flag abuses
This patch removes a number of SCF_SE_LUN_CMD flag abuses within iscsi-target
code to determine when iscsit_release_cmd() or transport_generic_free_cmd()
should be called while releasing an individual iscsi_cmd descriptor.
In the place of SCF_SE_LUN_CMD checks, this patch converts existing code to
use a new iscsit_free_cmd() that inspects iscsi_cmd->iscsi_opcode types to
determine which of the above functions should be invoked. It also removes the
now unnecessary special case checking in iscsit_release_commands_from_conn().
(hch: Use iscsit_free_cmd instead of open-coded alternative)
Reported-by: Christoph Hellwig <hch@lst.de>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
|
| d14921d6ad192868184686b3af5bb99cf3380510 |
|
09-Oct-2011 |
Nicholas Bellinger <nab@linux-iscsi.org> |
target: Convert ->transport_wait_for_tasks usage to transport_generic_free_cmd
This patch converts se_cmd->transport_wait_for_tasks(se_cmd, 1) usage to use
transport_generic_free_cmd() directly in target-core and iscsi-target fabric
usage. The includes:
*) Removal of the optional transport_generic_free_cmd() call from within
transport_generic_wait_for_tasks()
*) Usage of existing SCF_SUPPORTED_SAM_OPCODE to determine when
transport_generic_wait_for_tasks() processing may occur instead of
checking se_cmd->transport_wait_for_tasks()
*) Move transport_generic_wait_for_tasks() call ahead of core_dec_lacl_count()
and transport_lun_remove_cmd() in transport_generic_free_cmd() to follow
existing logic for iscsi-target w/ se_cmd->transport_wait_for_tasks(se_cmd, 1)
*) Removal of se_cmd->transport_wait_for_tasks() function pointer
*) Rename transport_generic_wait_for_tasks() -> transport_wait_for_tasks(), and
add docbook comment.
*) Add EXPORT_SYMBOL for transport_wait_for_tasks()
For the case in iscsi_target_erl2.c:iscsit_prepare_cmds_for_realligance()
where se_cmd->transport_wait_for_tasks(se_cmd, 0) is called, this patch
adds a direct call to transport_wait_for_tasks().
(hch: Fix transport_generic_free_cmd() usage in iscsit_release_commands_from_conn)
(nab: Add patch: Ensure that TMRs hit wait_for_tasks logic during release)
Reported-by: Christoph Hellwig <hch@lst.de>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
|
| 39c05f321a4b27f3036392eed68bd94ce2267155 |
|
08-Oct-2011 |
Nicholas Bellinger <nab@linux-iscsi.org> |
target: Remove session_reinstatement parameter from ->transport_wait_for_tasks
This patch removes the unnecessary session_reinstatement parameter from
se_cmd->transport_wait_for_tasks(), logic in transport_generic_wait_for_tasks,
and usage within iscsi-target code.
This also includes the removal of the 'bool' return from transport_put_cmd() +
transport_generic_free_cmd() that is no longer necessary.
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
|
| 82f1c8a4e7739eae9f1c32c2c419efdc19b8af41 |
|
13-Sep-2011 |
Christoph Hellwig <hch@lst.de> |
target: push session reinstatement out of transport_generic_free_cmd
Push session reinstatement out of transport_generic_free_cmd into the only
caller that actually needs it. Clean up transport_generic_free_cmd a bit,
and remove the useless comment. I'd love to add a more useful kerneldoc
comment for it, but as this point I'm still a bit confused in where it
stands in the command release stack.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
|
| c2337c709102b343bd917ae00c79b266fb15b871 |
|
08-Aug-2011 |
Dan Carpenter <error27@gmail.com> |
iscsi-target: remove duplicate return
We returned on the line before already.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
|
| aadcec010127a20599500c7007fbe9998744be41 |
|
27-Jul-2011 |
Nicholas Bellinger <nab@linux-iscsi.org> |
iscsi-target: Fix CONFIG_SMP=n and CONFIG_MODULES=n build failure
This patch fixes the following CONFIG_SMP=n and CONFIG_MODULES=n build
failure, because iscsit_thread_get_cpumask() is defined as a macro in
iscsi_target.c, but needed by iscsi_target_login.c
drivers/built-in.o: In function `iscsi_post_login_handler':
iscsi_target_login.c:(.text+0x13a315): undefined reference to `iscsit_thread_get_cpumask'
iscsi_target_login.c:(.text+0x13a4b4): undefined reference to `iscsit_thread_get_cpumask'
make: *** [.tmp_vmlinux1] Error 1
Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
|
| 76f1928e8831961a692459924cfac0ca1b0d303a |
|
27-Jul-2011 |
Nicholas Bellinger <nab@linux-iscsi.org> |
iscsi-target: Fix uninitialized usage of cmd->pad_bytes
This patch fixes an uninitialized usage of cmd->pad_bytes inside of
iscsit_handle_text_cmd() introduced during a v4.1 change to use cmd
members instead of local pad_bytes variables.
Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
|
| 8f50c7f5d63b0e4a29f6f96e8cfaca782e0c458d |
|
27-Jul-2011 |
Dan Carpenter <error27@gmail.com> |
iscsi-target: strlen() doesn't count the terminator
This patch fixes an off by one check in iscsit_add_tiqn() because the
NULL terminator isn't taken into consideration.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
|
| e48354ce078c079996f89d715dfa44814b4eba01 |
|
23-Jul-2011 |
Nicholas Bellinger <nab@linux-iscsi.org> |
iscsi-target: Add iSCSI fabric support for target v4.1
The Linux-iSCSI.org target module is a full featured in-kernel
software implementation of iSCSI target mode (RFC-3720) for the
current WIP mainline target v4.1 infrastructure code for the v3.1
kernel. More information can be found here:
http://linux-iscsi.org/wiki/ISCSI
This 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 <hch@lst.de>
Reviewed-by: Andy Grover <agrover@redhat.com>
Acked-by: Roland Dreier <roland@kernel.org>
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
|