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path: root/drivers/target/iscsi/iscsi_target_configfs.c
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2016-12-16iscsi-target: Return error if unable to add network portalVarun Prakash
If iscsit_tpg_add_network_portal() fails then return error code instead of 0 to user space. If iscsi-target returns 0 then user space keeps on retrying same command infinitely, targetcli or echo hangs till command completes with non zero return value. In some cases it is possible that add network portal command never completes with success even after retrying multiple times, for example - cxgbit_setup_np() always returns -EINVAL if portal IP does not belong to Chelsio adapter interface. Signed-off-by: Varun Prakash <varun@chelsio.com> Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> [ bvanassche: Added "Fixes:" and "Cc: stable" tags ] Fixes: commit d4b3fa4b0881 ("iscsi-target: Make iscsi_tpg_np driver show/store use generic code") Cc: <stable@vger.kernel.org>
2016-12-09target: Minimize #include directivesBart Van Assche
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 <bart.vanassche@sandisk.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Bryant G. Ly <bryantly@linux.vnet.ibm.com>
2016-05-16cxgbit: Use type ISCSI_CXGBIT + cxgbit tpg_np attributeNicholas Bellinger
Instead of having cxgbit use type ISCSI_HW_OFFLOAD + 'hw_offload' tpg_np attribute, it should be using it's own driver specific type + attribute Cc: Varun Prakash <varun@chelsio.com> Cc: Hariprasad Shenai <hariprasad@chelsio.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-16iscsi-target: Make iscsi_tpg_np driver show/store use generic codeNicholas Bellinger
Go ahead and fold the duplicate iscsi_tpg_np driver attribute show/store functions into generic callers, invoked by current driver specific functions. This allows for future v4.8+ changes to have iscsi_target_mod use tpg_np driver attributes at runtime, instead of having the defaults hardcoded in iscsi_target_configfs.c. Also, drop the unused/legacy 'sctp' attribute for non standard RFC-3720 operation with IPPROTO_SCTP. Cc: Varun Prakash <varun@chelsio.com> Cc: Hariprasad Shenai <hariprasad@chelsio.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-10iscsi-target: remove usage of ->shutdown_sessionChristoph Hellwig
->shutdown session only decideѕ if the target core calls ->close_session directly, or if the fabrics drivers calls it manually later through target_put_session, which at this point will always close the session as it has been removed from the lookup list and thus no new references will be acquired from the core. So instead remove ->shutdown and have the core call ->close_session directly, and replace all calls to target_put_session in the iSCSI target with direct calls to iscsit_close_session. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-09iscsi-target: add new offload transport typeVarun Prakash
Add new transport type ISCSI_HW_OFFLOAD, hw offload transport drivers will use this transport type. Signed-off-by: Varun Prakash <varun@chelsio.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-03-30target: add a new add_wwn_groups fabrics methodChristoph Hellwig
We need to have the WWN fully initialized before addig default groups to it, so add a new method to add these groups after the WWN has been initialized. Also remove the default groups in the core while we're at it. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-03-30target: remove ->fabric_cleanup_nodeaclChristoph Hellwig
Instead we can clean up the list of default ACLs in core code. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-03-06configfs: switch ->default groups to a linked listChristoph Hellwig
Replace the current NULL-terminated array of default groups with a linked list. This gets rid of lots of nasty code to size and/or dynamically allocate the array. While we're at it also provide a conveniant helper to remove the default groups. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Felipe Balbi <balbi@kernel.org> [drivers/usb/gadget] Acked-by: Joel Becker <jlbec@evilplan.org> Acked-by: Nicholas Bellinger <nab@linux-iscsi.org> Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
2016-01-20target: Convert ACL change queue_depth se_session reference usageNicholas Bellinger
This patch converts core_tpg_set_initiator_node_queue_depth() to use struct se_node_acl->acl_sess_list when performing explicit se_tpg_tfo->shutdown_session() for active sessions, in order for new se_node_acl->queue_depth to take effect. This follows how core_tpg_del_initiator_node_acl() currently works when invoking se_tpg_tfo->shutdown-session(), and ahead of the next patch to take se_node_acl->acl_kref during lookup, the extra get_initiator_node_acl() can go away. In order to achieve this, go ahead and change target_get_session() to use kref_get_unless_zero() and propigate up the return value to know when a session is already being released. This is because se_node_acl->acl_group is already protecting se_node_acl->acl_group reference via configfs, and shutdown within core_tpg_del_initiator_node_acl() won't occur until sys_write() to core_tpg_set_initiator_node_queue_depth() attribute returns back to user-space. Also, drop the left-over iscsi-target hack, and obtain se_portal_group->session_lock in lio_tpg_shutdown_session() internally. Remove iscsi-target wrapper and unused se_tpg + force parameters and associated code. Reported-by: Christoph Hellwig <hch@lst.de> Cc: Sagi Grimberg <sagig@mellanox.com> Cc: Hannes Reinecke <hare@suse.de> Cc: Andy Grover <agrover@redhat.com> Cc: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-01-20iscsi-target: Fix potential dead-lock during node acl deleteNicholas Bellinger
This patch is a iscsi-target specific bug-fix for a dead-lock that can occur during explicit struct se_node_acl->acl_group se_session deletion via configfs rmdir(2), when iscsi-target time2retain timer is still active. It changes iscsi-target to obtain se_portal_group->session_lock internally using spin_in_locked() to check for the specific se_node_acl configfs shutdown rmdir(2) case. Note this patch is intended for stable, and the subsequent v4.5-rc patch converts target_core_tpg.c to use proper se_sess->sess_kref reference counting for both se_node_acl deletion + se_node_acl->queue_depth se_session restart. Reported-by:: Sagi Grimberg <sagig@mellanox.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Cc: Andy Grover <agrover@redhat.com> Cc: Mike Christie <michaelc@cs.wisc.edu> Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-10-13target: use per-attribute show and store methodsChristoph Hellwig
This also allows to remove the target-specific old configfs macros, and gets rid of the target_core_fabric_configfs.h header which only had one function declaration left that could be moved to a better place. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Nicholas Bellinger <nab@linux-iscsi.org> Acked-by: Nicholas Bellinger <nab@linux-iscsi.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-08-26target/iscsi: Replace __kernel_sockaddr_storage with sockaddr_storageAndy Grover
It appears to be what the rest of the kernel does, so let's do it too. Signed-off-by: Andy Grover <agrover@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-08-26target/iscsi: Replace conn->login_ip with login_sockaddrAndy Grover
Very similar to how it went with local_sockaddr. It was embedded in iscsi_login_stats so some changes there, and we needed to copy in a sockaddr_storage comparison function. Hopefully the kernel will get a standard one soon, our implementation makes the 3rd. isert_set_conn_info() became much smaller. IPV6_ADDRESS_SPACE define goes away, had to modify a call to in6_pton(), can just use -1 since we are sure string is null-terminated. Signed-off-by: Andy Grover <agrover@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-08-26target/iscsi: Keep local_ip as the actual sockaddrAndy Grover
This is a more natural format that lets us format it with the appropriate printk specifier as needed. This also lets us handle v4-mapped ipv6 addresses a little more nicely, by storing the addr as an actual v4 sockaddr in conn->local_sockaddr. Finally, we no longer need to maintain variables for port, since this is contained in sockaddr. Remove iscsi_np.np_port and iscsi_conn.local_port. Signed-off-by: Andy Grover <agrover@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-08-26target/iscsi: Fix np_ip bracket issue by removing np_ipAndy Grover
Revert commit 1997e6259, which causes double brackets on ipv6 inaddr_any addresses. Since we have np_sockaddr, if we need a textual representation we can use "%pISc". Change iscsit_add_network_portal() and iscsit_add_np() signatures to remove *ip_str parameter. Fix and extend some comments earlier in the function. Tested to work for :: and ::1 via iscsiadm, previously :: failed, see https://bugzilla.redhat.com/show_bug.cgi?id=1249107 . CC: stable@vger.kernel.org Signed-off-by: Andy Grover <agrover@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-08-02target: Drop iSCSI use of mutex around max_cmd_sn incrementRoland Dreier
In a performance profile, taking a mutex in iscsit_increment_maxcmdsn() shows up very high. However taking a mutex around "sess->max_cmd_sn += 1" seems pretty silly: we're not serializing against other contexts in any useful way. I did a quick audit and there don't appear to be any other places that use max_cmd_sn within the mutex more than once, so this lock can't be providing any useful serialization. (Get correct values for logging - fix whitespace damage) Signed-off-by: Roland Dreier <roland@purestorage.com> Signed-off-by: Spencer Baugh <sbaugh@catern.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-08-02iscsi-target: Add tpg_enabled_sendtargets for disabled discoveryDavid Disseldorp
This patch adds a new tpg_enabled_sendtargets configfs attribute to allow in-band sendtargets discovery information to include target-portal-groups (TPGs) in !TPG_STATE_ACTIVE state. This functionality is useful for clustered iSCSI targets, where TPGTs handled on remote cluster nodes should be advertised in the SendTargets response. By default, this new attribute retains the default behaviour of existing code which to ignore portal-groups in !TPG_STATE_ACTIVE state. Signed-off-by: David Disseldorp <ddiss@suse.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-06-15target: Drop unnecessary core_tpg_register TFO parameterNicholas Bellinger
This patch drops unnecessary target_core_fabric_ops parameter usage for core_tpg_register() during fabric driver TFO->fabric_make_tpg() se_portal_group creation callback execution. Instead, use the existing se_wwn->wwn_tf->tf_ops pointer to ensure fabric driver is really using the same TFO provided at module_init time. Also go ahead and drop the forward TFO declarations tree-wide, and handling the special case for iscsi-target discovery TPG. Cc: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-05-30target: target_core_configfs.h is not needed in fabric driversChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-05-30target: Move task tag into struct se_cmd + support 64-bit tagsBart Van Assche
Simplify target core and target drivers by storing the task tag a.k.a. command identifier inside struct se_cmd. For several transports (e.g. SRP) tags are 64 bits wide. Hence add support for 64-bit tags. (Fix core_tmr_abort_task conversion spec warnings - nab) (Fix up usb-gadget to use 16-bit tags - HCH + bart) Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Andy Grover <agrover@redhat.com> Cc: Sagi Grimberg <sagig@mellanox.com> Cc: <qla2xxx-upstream@qlogic.com> Cc: Felipe Balbi <balbi@ti.com> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Juergen Gross <jgross@suse.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-05-30target: move transport ID handling to the coreChristoph Hellwig
Now that struct se_portal_group contains a protocol identifier field we can take all the code to format an parse protocol identifiers in CDBs into common code instead of leaving this to low-level drivers. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-05-30target: remove the get_fabric_proto_ident methodChristoph Hellwig
Now that we store the protocol identifier in the tpg structure we don't need this method. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-05-30target: change core_tpg_register prototypeChristoph Hellwig
Remove the unneeded fabric_ptr argument, and change the type argument to pass in a SPC protocol identifier. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-05-30target/iscsi: stop using se_tpg_fabric_ptrChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-05-30target: move node ACL allocation to core codeChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-05-30target: refactor init/drop_nodeacl methodsChristoph Hellwig
By always allocating and adding, respectively removing and freeing the se_node_acl structure in core code we can remove tons of repeated code in the init_nodeacl and drop_nodeacl routines. Additionally this now respects the get_default_queue_depth method in this code path as well. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-05-30target: Remove first argument of target_{get,put}_sess_cmd()Bart Van Assche
The first argument of these two functions is always identical to se_cmd->se_sess. Hence remove the first argument. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Sagi Grimberg <sagig@mellanox.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Cc: Andy Grover <agrover@redhat.com> Cc: <qla2xxx-upstream@qlogic.com> Cc: Felipe Balbi <balbi@ti.com> Cc: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-04-14target: simplify the target template registration APIChristoph Hellwig
Instead of calling target_fabric_configfs_init() + target_fabric_configfs_register() / target_fabric_configfs_deregister() target_fabric_configfs_free() from every target driver, rewrite the API so that we have simple register/unregister functions that operate on a const operations vector. This patch also fixes a memory leak in several target drivers. Several target drivers namely called target_fabric_configfs_deregister() without calling target_fabric_configfs_free(). A large part of this patch is based on earlier changes from Bart Van Assche <bart.vanassche@sandisk.com>. (v2: Add a new TF_CIT_SETUP_DRV macro so that the core configfs code can declare attributes as either core only or for drivers) Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-04-07iscsi/iser-target: Add fabric_prot_type attribute supportNicholas Bellinger
This patch updates iscsi/iser-target to add a new fabric_prot_type TPG attribute for iser-target, used for controlling LLD level protection into LIO when the backend device does not support T10-PI. This is required for ib_isert to enable WRITE_STRIP + READ_INSERT hardware offloads. It's disabled by default and controls which se_sesion->sess_prot_type are set at iscsi_target_locate_portal() session registration time. Cc: Sagi Grimberg <sagig@mellanox.com> Cc: Martin Petersen <martin.petersen@oracle.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-03-06iscsi-target: Expose per endpoint dynamic_sessions attributeNicholas Bellinger
This patch exposes a new ../iscsi/$IQN/$TPGT/dynamic_sessions attribute to dump the currently active sessions by iSCSI InitiatorName that have been created with dynamically generated se_node_acls. This information is useful so that user-space can optionally perform dynamic -> explicit NodeACL conversion based on $INITIATOR_WWPN. Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-01-30iscsi-target: Move iscsi_target_[core,stat].h under linux includeSagi Grimberg
Seems strange to see in include/target/iscsi/iscsi_transport.h: include "../../../drivers/target/iscsi/iscsi_target_core.h" Move it to it's natural location. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-01-15iscsi-target: use '%*ph' specifier to dump hex bufferAndy Shevchenko
Instead of pushing each byte via stack the %*ph specifier allows to supply just a pointer and length of the buffer. The patch converts code to use the specifier. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-09-17iscsi-target: remove always-true conditionsJoern Engel
Found by coverity. InitiatorName and InitiatorAlias are static arrays and therefore always non-NULL. At some point in the past they may have been dynamically allocated, but for current code the condition is useless. If the intent was to check InitiatorName[0] instead, I cannot find a use for that either. Let's get rid of it. Signed-off-by: Joern Engel <joern@logfs.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-04-07target: Add TFO->abort_task for aborted task resources releaseNicholas Bellinger
Now that TASK_ABORTED status is not generated for all cases by TMR ABORT_TASK + LUN_RESET, a new TFO->abort_task() caller is necessary in order to give fabric drivers a chance to unmap hardware / software resources before the se_cmd descriptor is released via the normal TFO->release_cmd() codepath. This patch adds TFO->aborted_task() in core_tmr_abort_task() in place of the original transport_send_task_abort(), and also updates all fabric drivers to implement this caller. The fabric drivers that include changes to perform cleanup via ->aborted_task() are: - iscsi-target - iser-target - srpt - tcm_qla2xxx The fabric drivers that currently set ->aborted_task() to NOPs are: - loopback - tcm_fc - usb-gadget - sbp-target - vhost-scsi For the latter five, there appears to be no additional cleanup required before invoking TFO->release_cmd() to release the se_cmd descriptor. v2 changes: - Move ->aborted_task() call into transport_cmd_finish_abort (Alex) Cc: Alex Leung <amleung21@yahoo.com> Cc: Mark Rustad <mark.d.rustad@intel.com> Cc: Roland Dreier <roland@kernel.org> Cc: Vu Pham <vu@mellanox.com> Cc: Chris Boot <bootc@bootc.net> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Giridhar Malavali <giridhar.malavali@qlogic.com> Cc: Saurav Kashyap <saurav.kashyap@qlogic.com> Cc: Quinn Tran <quinn.tran@qlogic.com> Cc: Sagi Grimberg <sagig@mellanox.com> Cc: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-04-07Target/configfs: Expose iSCSI network portal group T10-PI supportSagi Grimberg
User may enable T10-PI support per network portal group. any connection established on top of it, will be required to serve protected transactions. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-12-11iscsi-target: return -EINVAL on oversized configfs parameterEric Seppanen
The iSCSI CHAP auth parameters are already copied with respect for the destination buffer size. Return -EINVAL instead of silently truncating the input. Signed-off-by: Eric Seppanen <eric@purestorage.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-11-20iscsi-target: Expose default_erl as TPG attributeNicholas Bellinger
This patch exposes default_erl as a TPG attribute so that it may be set TPG wide in demo-mode, but still allow the existing NodeACL attribute to be overridden on a per initiator basis. Reported-by: Arshad Hussain <arshad.hussain@calsoftinc.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-11-12iscsi-target: Fix mutex_trylock usage in iscsit_increment_maxcmdsnNicholas Bellinger
This patch fixes a >= v3.10 regression bug with mutex_trylock() usage within iscsit_increment_maxcmdsn(), that was originally added to allow for a special case where ->cmdsn_mutex was already held from the iscsit_execute_cmd() exception path for ib_isert. When !mutex_trylock() was occuring under contention during normal RX/TX process context codepaths, the bug was manifesting itself as the following protocol error: Received CmdSN: 0x000fcbb7 is greater than MaxCmdSN: 0x000fcbb6, protocol error. Received CmdSN: 0x000fcbb8 is greater than MaxCmdSN: 0x000fcbb6, protocol error. This patch simply avoids the direct ib_isert callback in lio_queue_status() for the special iscsi_execute_cmd() exception cases, that allows the problematic mutex_trylock() usage in iscsit_increment_maxcmdsn() to go away. Reported-by: Moussa Ba <moussaba@micron.com> Tested-by: Moussa Ba <moussaba@micron.com> Cc: <stable@vger.kernel.org> # v3.10+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-10-23iscsi-target: Add new TPG attributeThomas Glanzmann
Add a new TPG attribute demo_mode_discovery which is enabled by default. Signed-off-by: Thomas Glanzmann <thomas@glanzmann.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-10-16target/iscsi: Remove iscsi dereferencing macrosAndy Grover
These are all straightforward. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andy Grover <agrover@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-10-16target: Remove TF_CIT_TMPL macroAndy Grover
Remove a lingering macro that just hid a dereference. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andy Grover <agrover@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-09-10target: Update copyright ownership/year information to 2013Nicholas Bellinger
Update copyright ownership/year information for target-core, loopback, iscsi-target, tcm_qla2xx, vhost and iser-target. Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-09-09iscsi/iser-target: Convert to command priv_size usageNicholas Bellinger
This command converts iscsi/isert-target to use allocations based on iscsit_transport->priv_size within iscsit_allocate_cmd(), instead of using an embedded isert_cmd->iscsi_cmd. This includes removing iscsit_transport->alloc_cmd() usage, along with updating isert-target code to use iscsit_priv_cmd(). Also, remove left-over iscsit_transport->release_cmd() usage for direct calls to iscsit_release_cmd(), and drop the now unused lio_cmd_cache and isert_cmd_cache. Cc: Or Gerlitz <ogerlitz@mellanox.com> Cc: Kent Overstreet <kmo@daterainc.com> Signed-off-by: Nicholas Bellinger <nab@daterainc.com>
2013-08-12target: replace strict_strto*() with kstrto*()Jingoo Han
The usage of strict_strtoul() and strict_strtoull() is not preferred, because strict_strtoul() and strict_strtoull() are obsolete. Thus, kstrtoul() and kstrtoull() should be used. v2: Fix incorrect return in ft_add_tpg (Fengguang) Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-07-11Merge branch 'for-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending Pull SCSI target updates from Nicholas Bellinger: "Lots of activity this round on performance improvements in target-core while benchmarking the prototype scsi-mq initiator code with vhost-scsi fabric ports, along with a number of iscsi/iser-target improvements and hardening fixes for exception path cases post v3.10 merge. The highlights include: - Make persistent reservations APTPL buffer allocated on-demand, and drop per t10_reservation buffer. (grover) - Make virtual LUN=0 a NULLIO device, and skip allocation of NULLIO device pages (grover) - Add transport_cmd_check_stop write_pending bit to avoid extra access of ->t_state_lock is WRITE I/O submission fast-path. (nab) - Drop unnecessary CMD_T_DEV_ACTIVE check from transport_lun_remove_cmd to avoid extra access of ->t_state_lock in release fast-path. (nab) - Avoid extra t_state_lock access in __target_execute_cmd fast-path (nab) - Drop unnecessary vhost-scsi wait_for_tasks=true usage + ->t_state_lock access in release fast-path. (nab) - Convert vhost-scsi to use modern se_cmd->cmd_kref TARGET_SCF_ACK_KREF usage (nab) - Add tracepoints for SCSI commands being processed (roland) - Refactoring of iscsi-target handling of ISCSI_OP_NOOP + ISCSI_OP_TEXT to be transport independent (nab) - Add iscsi-target SendTargets=$IQN support for in-band discovery (nab) - Add iser-target support for in-band discovery (nab + Or) - Add iscsi-target demo-mode TPG authentication context support (nab) - Fix isert_put_reject payload buffer post (nab) - Fix iscsit_add_reject* usage for iser (nab) - Fix iscsit_sequence_cmd reject handling for iser (nab) - Fix ISCSI_OP_SCSI_TMFUNC handling for iser (nab) - Fix session reset bug with RDMA_CM_EVENT_DISCONNECTED (nab) The last five iscsi/iser-target items are CC'ed to stable, as they do address issues present in v3.10 code. They are certainly larger than I'd like for stable patch set, but are important to ensure proper REJECT exception handling in iser-target for 3.10.y" * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (51 commits) iser-target: Ignore non TEXT + LOGOUT opcodes for discovery target: make queue_tm_rsp() return void target: remove unused codes from enum tcm_tmrsp_table iscsi-target: kstrtou* configfs attribute parameter cleanups iscsi-target: Fix tfc_tpg_auth_cit configfs length overflow iscsi-target: Fix tfc_tpg_nacl_auth_cit configfs length overflow iser-target: Add support for ISCSI_OP_TEXT opcode + payload handling iser-target: Rename sense_buf_[dma,len] to pdu_[dma,len] iser-target: Add vendor_err debug output target: Add (obsolete) checking for PMI/LBA fields in READ CAPACITY(10) target: Return correct sense data for IO past the end of a device target: Add tracepoints for SCSI commands being processed iser-target: Fix session reset bug with RDMA_CM_EVENT_DISCONNECTED iscsi-target: Fix ISCSI_OP_SCSI_TMFUNC handling for iser iscsi-target: Fix iscsit_sequence_cmd reject handling for iser iscsi-target: Fix iscsit_add_reject* usage for iser iser-target: Fix isert_put_reject payload buffer post iscsi-target: missing kfree() on error path iscsi-target: Drop left-over iscsi_conn->bad_hdr target: Make core_scsi3_update_and_write_aptpl return sense_reason_t ...
2013-07-07target: make queue_tm_rsp() return voidJoern Engel
The return value wasn't checked by any of the callers. Assuming this is correct behaviour, we can simplify some code by not bothering to generate it. nab: Add srpt_queue_data_in() + srpt_queue_tm_rsp() nops around srpt_queue_response() void return Signed-off-by: Joern Engel <joern@logfs.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-07-07iscsi-target: kstrtou* configfs attribute parameter cleanupsJörn Engel
This patch includes the conversion of iscsi-target configfs attributes for NetworkPortal, NodeACL, TPG, IQN and Discovery groups to use kstrtou*() instead of simple_strtou*(). It also cleans up new-line usage during iscsi_tpg_param_store_##name to use isspace(). Signed-off-by: Joern Engel <joern@logfs.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-07-07iscsi-target: Fix tfc_tpg_auth_cit configfs length overflowNicholas Bellinger
This patch fixes another potential buffer overflow while processing iscsi_node_auth input for configfs attributes in v3.11 for-next TPG tfc_tpg_auth_cit context. Reported-by: Joern Engel <joern@logfs.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-07-07iscsi-target: Fix tfc_tpg_nacl_auth_cit configfs length overflowJörn Engel
This patch fixes a potential buffer overflow while processing iscsi_node_auth input for configfs attributes within NodeACL tfc_tpg_nacl_auth_cit context. Signed-off-by: Joern Engel <joern@logfs.org> Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>