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2013-07-08iser-target: Fix session reset bug with RDMA_CM_EVENT_DISCONNECTEDNicholas Bellinger2-10/+61
This patch addresses a bug where RDMA_CM_EVENT_DISCONNECTED may occur before the connection shutdown has been completed by rx/tx threads, that causes isert_free_conn() to wait indefinately on ->conn_wait. This patch allows isert_disconnect_work code to invoke rdma_disconnect when isert_disconnect_work() process context is started by client session reset before isert_free_conn() code has been reached. It also adds isert_conn->conn_mutex protection for ->state within isert_disconnect_work(), isert_cq_comp_err() and isert_free_conn() code, along with isert_check_state() for wait_event usage. (v2: Add explicit iscsit_cause_connection_reinstatement call during isert_disconnect_work() to force conn reset) Cc: stable@vger.kernel.org # 3.10+ Cc: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-07-07iscsi-target: Fix ISCSI_OP_SCSI_TMFUNC handling for iserNicholas Bellinger1-8/+8
This patch adds target_get_sess_cmd reference counting for iscsit_handle_task_mgt_cmd(), and adds a target_put_sess_cmd() for the failure case. It also fixes a bug where ISCSI_OP_SCSI_TMFUNC type commands where leaking iscsi_cmd->i_conn_node and eventually triggering an OOPs during struct isert_conn shutdown. Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-07-07iscsi-target: Fix iscsit_sequence_cmd reject handling for iserNicholas Bellinger1-1/+1
This patch moves ISCSI_OP_REJECT failures into iscsit_sequence_cmd() in order to avoid external iscsit_reject_cmd() reject usage for all PDU types. It also updates PDU specific handlers for traditional iscsi-target code to not reset the session after posting a ISCSI_OP_REJECT during setup. (v2: Fix CMDSN_LOWER_THAN_EXP for ISCSI_OP_SCSI to call target_put_sess_cmd() after iscsit_sequence_cmd() failure) Cc: Or Gerlitz <ogerlitz@mellanox.com> Cc: Mike Christie <michaelc@cs.wisc.edu> Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-07-07iscsi-target: Fix iscsit_add_reject* usage for iserNicholas Bellinger1-5/+0
This patch changes iscsit_add_reject() + iscsit_add_reject_from_cmd() usage to not sleep on iscsi_cmd->reject_comp to address a free-after-use usage bug in v3.10 with iser-target code. It saves ->reject_reason for use within iscsit_build_reject() so the correct value for both transport cases. It also drops the legacy fail_conn parameter usage throughput iscsi-target code and adds two iscsit_add_reject_cmd() and iscsit_reject_cmd helper functions, along with various small cleanups. (v2: Re-enable target_put_sess_cmd() to be called from iscsit_add_reject_from_cmd() for rejects invoked after target_get_sess_cmd() has been called) Cc: Or Gerlitz <ogerlitz@mellanox.com> Cc: Mike Christie <michaelc@cs.wisc.edu> Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-07-07iser-target: Fix isert_put_reject payload buffer postNicholas Bellinger1-4/+22
This patch adds the missing isert_put_reject() logic to post a outgoing payload buffer to hold the 48 bytes of original PDU header request payload for the rejected cmd. It also fixes ISTATE_SEND_REJECT handling in isert_response_completion() -> isert_do_control_comp() code, and drops incorrect iscsi_cmd_t->reject_comp usage. Cc: Or Gerlitz <ogerlitz@mellanox.com> Cc: Mike Christie <michaelc@cs.wisc.edu> Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-07-05Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linuxLinus Torvalds1-3/+2
Pull device tree updates from Grant Likely: "This branch contains the following changes: - Removal of CONFIG_OF_DEVICE, it is always enabled by CONFIG_OF - Remove #ifdef from linux/of_platform.h to increase compiler syntax coverage - Bug fix for address decoding on Bimini and js2x powerpc platforms. - miscellaneous binding changes One note on the above. The binding changes going in from all kinds of different trees has gotten rather out of hand. I picked up some during this cycle, but even going though my tree isn't a great fit. Ian Campbell has prototyped splitting the bindings and .dtb files into a separate repository. The plan is to migrate to using that sometime in the next few kernel releases which should get rid of a lot of the churn on binding docs and .dts files" * tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux: of: Fix address decoding on Bimini and js2x machines of: remove CONFIG_OF_DEVICE usb: chipidea: depend on CONFIG_OF instead of CONFIG_OF_DEVICE of: remove of_platform_driver ibmebus: convert of_platform_driver to platform_driver driver core: move to_platform_driver to platform_device.h mfd: DT bindings for the palmas family MFD ARM: dts: omap3-devkit8000: fix NAND memory binding of/base: fix typos of: remove #ifdef from linux/of_platform.h
2013-07-04Merge branch 'for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial tree updates from Jiri Kosina: "The usual stuff from trivial tree" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (34 commits) treewide: relase -> release Documentation/cgroups/memory.txt: fix stat file documentation sysctl/net.txt: delete reference to obsolete 2.4.x kernel spinlock_api_smp.h: fix preprocessor comments treewide: Fix typo in printk doc: device tree: clarify stuff in usage-model.txt. open firmware: "/aliasas" -> "/aliases" md: bcache: Fixed a typo with the word 'arithmetic' irq/generic-chip: fix a few kernel-doc entries frv: Convert use of typedef ctl_table to struct ctl_table sgi: xpc: Convert use of typedef ctl_table to struct ctl_table doc: clk: Fix incorrect wording Documentation/arm/IXP4xx fix a typo Documentation/networking/ieee802154 fix a typo Documentation/DocBook/media/v4l fix a typo Documentation/video4linux/si476x.txt fix a typo Documentation/virtual/kvm/api.txt fix a typo Documentation/early-userspace/README fix a typo Documentation/video4linux/soc-camera.txt fix a typo lguest: fix CONFIG_PAE -> CONFIG_x86_PAE in comment ...
2013-07-04drivers: avoid format string in dev_set_nameKees Cook2-2/+2
Calling dev_set_name with a single paramter causes it to be handled as a format string. Many callers are passing potentially dynamic string content, so use "%s" in those cases to avoid any potential accidents, including wrappers like device_create*() and bdi_register(). Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-01IB/srp: Bump driver version and release dateVu Pham1-2/+2
Signed-off-by: Vu Pham <vu@mellanox.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-07-01IB/srp: Make HCA completion vector configurableBart Van Assche2-2/+25
Several InfiniBand HCAs allow configuring the completion vector per CQ. This allows spreading the workload created by IB completion interrupts over multiple MSI-X vectors and hence over multiple CPU cores. In other words, configuring the completion vector properly not only allows reducing latency on an initiator connected to multiple SRP targets but also allows improving throughput. Signed-off-by: Bart Van Assche <bvanassche@acm.org> Acked-by: David Dillow <dillowda@ornl.gov> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-07-01IB/srp: Maintain a single connection per I_T nexusBart Van Assche1-2/+42
An SRP target is required to maintain a single connection between initiator and target. This means that if the 'add_target' attribute is used to create a second connection to a target, the first connection will be logged out and that the SCSI error handler will kick in. The SCSI error handler will cause the SRP initiator to reconnect, which will cause I/O over the second connection to fail. Avoid such ping-pong behavior by disabling relogins. If reconnecting manually is necessary, that is possible by deleting and recreating an rport via sysfs. Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Sebastian Riemer <sebastian.riemer@profitbricks.com> Acked-by: David Dillow <dillowda@ornl.gov> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-07-01IB/srp: Fail I/O fast if target offlineBart Van Assche1-0/+2
If reconnecting failed we know that no command completion will be received anymore. Hence let the SCSI error handler fail such commands immediately. Signed-off-by: Bart Van Assche <bvanassche@acm.org> Acked-by: David Dillow <dillowda@ornl.gov> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-28IB/srp: Skip host settle delayBart Van Assche1-0/+1
The SRP initiator implements host reset by reconnecting to the SRP target. That means that communication with the target is possible as soon as host reset finished. Hence skip the host settle delay. Signed-off-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Sebastian Riemer <sebastian.riemer@profitbricks.com> Reviewed-by: Christoph Hellwig <hch@infradead.org> Acked-by: David Dillow <dillowda@ornl.gov> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-28IB/srp: Avoid skipping srp_reset_host() after a transport errorBart Van Assche1-3/+8
The SCSI error handler assumes that the transport layer is operational if an eh_abort_handler() returns SUCCESS. Hence srp_abort() only should return SUCCESS if sending the ABORT TASK task management function succeeded. This patch avoids the SCSI error handler skipping the srp_reset_host() call after a transport layer error. Signed-off-by: Bart Van Assche <bvanassche@acm.org> Acked-by: David Dillow <dillowda@ornl.gov> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-28IB/srp: Fix remove_one crash due to resource exhaustionDotan Barak1-0/+2
If the add_one callback fails during driver load no resources are allocated so there isn't a need to release any resources. Trying to clean the resource may lead to the following kernel panic: BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffffa0132331>] srp_remove_one+0x31/0x240 [ib_srp] RIP: 0010:[<ffffffffa0132331>] [<ffffffffa0132331>] srp_remove_one+0x31/0x240 [ib_srp] Process rmmod (pid: 4562, threadinfo ffff8800dd738000, task ffff8801167e60c0) Call Trace: [<ffffffffa024500e>] ib_unregister_client+0x4e/0x120 [ib_core] [<ffffffffa01361bd>] srp_cleanup_module+0x15/0x71 [ib_srp] [<ffffffff810ac6a4>] sys_delete_module+0x194/0x260 [<ffffffff8100b0f2>] system_call_fastpath+0x16/0x1b Signed-off-by: Dotan Barak <dotanb@dev.mellanox.co.il> Reviewed-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Acked-by: Sebastian Riemer <sebastian.riemer@profitbricks.com> Acked-by: David Dillow <dillowda@ornl.gov> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-26IB/qib: New transmitter tunning settings for Dell 1.1 backplaneMitko Haralanov1-22/+37
The Dell blade chassis got an updated backplane which requires new transmitter tuning settings. Signed-off-by: Mitko Haralanov <mitko.haralanov@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-25iscsi/isert-target: Refactor ISCSI_OP_NOOP RX handlingNicholas Bellinger1-1/+22
This patch refactors ISCSI_OP_NOOP handling within iscsi-target in order to handle iscsi_nopout payloads in a transport specific manner. This includes splitting existing iscsit_handle_nop_out() into iscsit_setup_nop_out() and iscsit_process_nop_out() calls, and makes iscsit_handle_nop_out() be only used internally by traditional iscsi socket calls. Next update iser-target code to use new callers and add FIXME for the handling iscsi_nopout payloads. Also fix reject response handling in iscsit_setup_nop_out() to use proper iscsit_add_reject_from_cmd(). v2: Fix uninitialized iscsit_handle_nop_out() payload_length usage (Fengguang) v3: Remove left-over dead code in iscsit_setup_nop_out() (DanC) Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-06-25IB/core: Fix error return code in add_port()Wei Yongjun1-2/+6
Fix to return -ENOMEM in the add_port() error handling case instead of 0, as done elsewhere in this function. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-25RDMA/ocrdma: Fix error return code in ocrdma_set_create_qp_rq_cmd()Wei Yongjun1-1/+1
Fix to return -ENOMEM in the alloc dma coherent error case instead of 0, as done elsewhere in this function. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-22IB/qib: Add qp_stats debug fileMike Marciniszyn3-1/+161
This adds a seq_file iterator for reporting the QP hash table when the qp_stats file is read. Reviewed-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-22IB/qib: Add per-context stats interfaceMike Marciniszyn1-0/+63
This patch adds a debugfs stats interface for per kernel contexts packet counts. The code uses the opcode stats count and eliminates the counter in the context. Reviewed-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-22IB/qib: Convert opcode counters to per-contextMike Marciniszyn8-23/+284
This fix changes the opcode relative counters for receive to per context. Profiling has shown that when mulitple contexts are being used there is a lot of cache activity associated with these counters. The code formerly kept these counters per port, but only provided the interface to read per HCA. This patch converts the read of counters to per HCA and adds the debugfs hooks to be able to read the file as a sequence of opcodes. Reviewed-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-22IB/qib: Optimize CQ callbacksMike Marciniszyn4-24/+76
The current workqueue implemention has the following performance deficiencies on QDR HCAs: - The CQ call backs tend to run on the CPUs processing the receive queues - The single thread queue isn't optimal for multiple HCAs This patch adds a dedicated per HCA bound thread to process CQ callbacks. Reviewed-by: Ramkrishna Vepa <ramkrishna.vepa@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-22IB/qib: Add dual-rail NUMA awareness for PSM processesRamkrishna Vepa1-49/+125
The driver currently selects a HCA based on the algorithm that PSM chooses, contexts within a HCA or across. The HCA can also be chosen by the user. Either way, this patch assigns a CPU on the NUMA node local to the selected HCA. This patch also tries to select the HCA closest to the NUMA node of the CPU assigned via taskset to PSM process. If this HCA is unusable then another unit is selected based on the algorithm that is currently enforced or selected by PSM - round robin context selection 'within' or 'across' HCA's. Fixed a bug wherein contexts are setup on the NUMA node on which the processes are opened (setup_ctxt()) and not on the NUMA node that the driver recommends the CPU on. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Vinit Agnihotri <vinit.abhay.agnihotri@intel.com> Signed-off-by: Ramkrishna Vepa <ramkrishna.vepa@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-22IB/qib: Add optional NUMA affinityRamkrishna Vepa3-9/+43
This patch adds context relative numa affinity conditioned on the module parameter numa_aware. The qib_ctxtdata has an additional node_id member and qib_create_ctxtdata() has an addition node_id parameter. The allocations within the hdr queue and eager queue setup routines now take this additional member and adjust allocations as necesary. PSM will pass the either current numa node or the node closest to the HCA depending on numa_aware. Verbs will always use the node closest to the HCA. Reviewed-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Ramkrishna Vepa <ramkrishna.vepa@intel.com> Signed-off-by: Vinit Agnihotri <vinit.abhay.agnihotri@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-22IB/qib: Update minor version numberVinit Agnihotri1-1/+1
External PSM repositories have advanced the minor number for a variety of reasons. The driver needs to increase to avoid warnings. Signed-off-by: Vinit Agnihotri <vinit.abhay.agnihotri@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-22IB/qib: Remove atomic_inc_not_zero() from QP RCUMike Marciniszyn1-14/+15
Follow Documentation/RCU/rcuref.txt guidance in removing atomic_inc_not_zero() from QP RCU implementation. This patch also removes an unneeded synchronize_rcu() in the add path. Reviewed-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-22IB/qib: Add DCA supportMike Marciniszyn6-12/+404
This patch adds DCA cache warming for systems that support DCA. The code uses cpu affinity notification to react to an affinity change from a user mode program like irqbalance and (re-)program the chip accordingly. This notification avoids reading the current cpu on every interrupt. Reviewed-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> [ Add Kconfig dependency on SMP && GENERIC_HARDIRQS to avoid failure to build due to undefined struct irq_affinity_notify. - Roland ] Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-21RDMA/cma: Export AF_IB statisticsSean Hefty1-27/+10
Report AF_IB source and destination addresses through netlink interface. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-21RDMA/ucma: Allow user space to specify AF_IB when joining multicastSean Hefty2-13/+51
Allow user space applications to join multicast groups using MGIDs directly. MGIDs may be passed using AF_IB addresses. Since the current multicast join command only supports addresses as large as sockaddr_in6, define a new structure for joining addresses specified using sockaddr_ib. Since AF_IB allows the user to specify the qkey when resolving a remote UD QP address, when joining the multicast group use the qkey value, if one has been assigned. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-21RDMA/ucma: Allow user space to pass AF_IB into resolveSean Hefty1-1/+29
Allow user space applications to call resolve_addr using AF_IB. To support sockaddr_ib, we need to define a new structure capable of handling the larger address size. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-21RDMA/ucma: Allow user space to bind to AF_IBSean Hefty1-1/+26
Support user space binding to addresses using AF_IB. Since sockaddr_ib is larger than sockaddr_in6, we need to define a larger structure when binding using AF_IB. This time we use sockaddr_storage to cover future cases. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-21RDMA/ucma: Name changes to indicate only IP addresses supportedSean Hefty1-30/+30
Several commands into the RDMA CM from user space are restricted to supporting addresses which fit into a sockaddr_in6 structure: bind address, resolve address, and join multicast. With the addition of AF_IB, we need to support addresses which are larger than sockaddr_in6. This will be done by adding new commands that exchange address information using sockaddr_storage. However, to support existing applications, we maintain the current commands and structures, but rename them to indicate that they only support IPv4 and v6 addresses. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-21RDMA/ucma: Add ability to query GID addressesSean Hefty1-0/+50
Part of address resolution is mapping IP addresses to IB GIDs. With the changes to support querying larger addresses and more path records, also provide a way to query IB GIDs after resolution completes. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-21RDMA/cma: Export cma_get_service_id()Sean Hefty1-6/+7
Allow the rdma_ucm to query the IB service ID formed or allocated by the rdma_cm by exporting the cma_get_service_id() functionality. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-21RDMA/ucma: Support querying when IB paths are not reversibleSean Hefty1-0/+35
The current query_route call can return up to two path records. The assumption being that one is the primary path, with optional support for an alternate path. In both cases, the paths are assumed to be reversible and are used to send CM MADs. With the ability to manually set IB path data, the rdma cm can eventually be capable of using up to 6 paths per connection: forward primary, reverse primary, forward alternate, reverse alternate, reversible primary path for CM MADs reversible alternate path for CM MADs. (It is unclear at this time if IB routing will complicate this) In order to handle more flexible routing topologies, add a new command to report any number of paths. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-21IB/sa: Export function to pack a path record into wire formatSean Hefty1-0/+6
Allow converting from struct ib_sa_path_rec to the IB defined SA path record wire format. This will be used to report path data from the rdma cm into user space. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-21RDMA/ucma: Support querying for AF_IB addressesSean Hefty1-2/+74
The sockaddr structure for AF_IB is larger than sockaddr_in6. The rdma cm user space ABI uses the latter to exchange address information between user space and the kernel. To support querying for larger addresses, define a new query command that exchanges data using sockaddr_storage, rather than sockaddr_in6. Unlike the existing query_route command, the new command only returns address information. Route (i.e. path record) data is separated. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-21RDMA/cma: Only listen on IB devices when using AF_IBSean Hefty1-0/+4
If an rdma_cm_id is bound to AF_IB, with a wild card address, only listen on IB devices. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-21RDMA/cma: Set qkey for AF_IBSean Hefty2-17/+26
Allow the user to specify the qkey when using AF_IB. The qkey is added to struct rdma_ucm_conn_param in place of a reserved field, but for backwards compatability, is only accessed if the associated rdma_cm_id is using AF_IB. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-21RDMA/cma: Expose private data when using AF_IBSean Hefty1-22/+34
If the source or destination address is AF_IB, then do not reserve a portion of the private data in the IB CM REQ or SIDR REQ messages for the cma header. Instead, all private data should be exported to the user. When AF_IB is used, the rdma cm does not have sufficient information to fill in the cma header. Additionally, this will be necessary to support any IB connection through the rdma cm interface, Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-21RDMA/cma: Merge cma_get/save_net_infoSean Hefty1-55/+69
With the removal of SDP related code, we can merge cma_get_net_info() with cma_save_net_info(), since we're only ever dealing with a single header format. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-21RDMA/cma: Remove unused SDP related codeSean Hefty1-145/+31
The SDP protocol was never merged upstream. Remove unused SDP related code from the RDMA CM. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-21RDMA/cma: Add support for AF_IB to cma_get_service_id()Sean Hefty1-0/+3
cma_get_service_id() forms the service ID based on the port space and port number of the rdma_cm_id. Extend the call to support AF_IB, which contains the service ID directly. This will be needed to support any arbitrary SID. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-21RDMA/cma: Add support for AF_IB to rdma_resolve_route()Sean Hefty1-2/+11
Allow rdma_resolve_route() to handle the case where the user specified the source and destination addresses using AF_IB. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-21RDMA/cma: Add support for AF_IB to rdma_resolve_addr()Sean Hefty1-6/+100
Allow the user to specify the remote address using AF_IB format. When AF_IB is used, the remote address simply needs to be recorded, and no resolution using ARP is done. The local address may still need to be matched with a local IB device. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-21RDMA/cma: Verify that source and dest sa_family are the sameSean Hefty1-5/+3
Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-21RDMA/cma: Restrict AF_IB loopback to binding to IB devices onlySean Hefty1-8/+20
If a user specifies AF_IB as the source address for a loopback connection, limit the resolution to IB devices only. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-21RDMA/cma: Add helper functions to return id address informationSean Hefty1-67/+71
Provide inline helpers to extract source and destination address data from the rdma_cm_id. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-21RDMA/cma: Do not modify sa_family when setting loopback addressSean Hefty1-13/+18
cma_resolve_loopback is called after an rdma_cm_id has been bound to a specific sa_family and port. Once the source sa_family for the id has been set, do not modify it. Only the actual IP address portion of the source address needs to be set. As part of this fix, we can simplify setting the source address by moving the loopback address assignment from cma_resolve_loopback to cma_bind_loopback. cma_bind_loopback is only invoked when the source address is the loopback address. Finally, add loopback support for AF_IB as part of the change. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
generated by cgit v1.2.3 (git 2.39.0) at 2025-10-01 15:58:04 +0300