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path: root/drivers/infiniband/core/sa_query.c
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2015-08-30IB/core: lock client data with lists_rwsemHaggai Eran
An ib_client callback that is called with the lists_rwsem locked only for read is protected from changes to the IB client lists, but not from ib_unregister_device() freeing its client data. This is because ib_unregister_device() will remove the device from the device list with lists_rwsem locked for write, but perform the rest of the cleanup, including the call to remove() without that lock. Mark client data that is undergoing de-registration with a new going_down flag in the client data context. Lock the client data list with lists_rwsem for write in addition to using the spinlock, so that functions calling the callback would be able to lock only lists_rwsem for read and let callbacks sleep. Since ib_unregister_client() now marks the client data context, no need for remove() to search the context again, so pass the client data directly to remove() callbacks. Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Haggai Eran <haggaie@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-07-14IB: Add rdma_cap_ib_switch helper and use where appropriateHal Rosenstock
Persuant to Liran's comments on node_type on linux-rdma mailing list: In an effort to reform the RDMA core and ULPs to minimize use of node_type in struct ib_device, an additional bit is added to struct ib_device for is_switch (IB switch). This is needed to be initialized by any IB switch device driver. This is a NEW requirement on such device drivers which are all "out of tree". In addition, an ib_switch helper was added to ib_verbs.h based on the is_switch device bit rather than node_type (although those should be consistent). The RDMA core (MAD, SMI, agent, sa_query, multicast, sysfs) as well as (IPoIB and SRP) ULPs are updated where appropriate to use this new helper. In some cases, the helper is now used under the covers of using rdma_[start end]_port rather than the open coding previously used. Reviewed-by: Sean Hefty <sean.hefty@intel.com> Reviewed-By: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Tested-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Hal Rosenstock <hal@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-06-12IB/mad: Support alternate Base Versions when creating MADsIra Weiny
In preparation to support the new OPA MAD Base version, add a base version parameter to ib_create_send_mad and set it to IB_MGMT_BASE_VERSION for current users. Definition of the new base version and it's processing will occur in later patches. Signed-off-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-06-11IB/core: Don't warn on no SA support in event handlerMoni Shoua
Registering an event handler is done for a device. This device may have one RoCE port (no SA cap) and one InfiniBand port (has SA cap). Therefore, warning from the event handler about a specific port that doesn't have SA cap is correct but pollutes the kernel log without a need. Signed-off-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-05-18IB/Verbs: Use management helper rdma_cap_eth_ah()Michael Wang
Introduce helper rdma_cap_eth_ah() to help us check if the port of an IB device support Ethernet Address Handler. Signed-off-by: Michael Wang <yun.wang@profitbricks.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Tested-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Sean Hefty <sean.hefty@intel.com> Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Tested-by: Doug Ledford <dledford@redhat.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-05-18IB/Verbs: Use management helper rdma_cap_ib_sa()Michael Wang
Introduce helper rdma_cap_ib_sa() to help us check if the port of an IB device support Infiniband Subnet Administration. Signed-off-by: Michael Wang <yun.wang@profitbricks.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Tested-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Sean Hefty <sean.hefty@intel.com> Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Tested-by: Doug Ledford <dledford@redhat.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-05-18IB/Verbs: Reform IB-core sa_queryMichael Wang
Use raw management helpers to reform IB-core sa_query. Signed-off-by: Michael Wang <yun.wang@profitbricks.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Tested-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Sean Hefty <sean.hefty@intel.com> Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Tested-by: Doug Ledford <dledford@redhat.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2014-08-11IB/mad: add new ioctl to ABI to support new registration optionsIra Weiny
Registrations options are specified through flags. Definitions of flags will be in subsequent patches. Signed-off-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-06-03IB/mad: Fix sparse warning about gfp_t useRoland Dreier
Properly convert gfp_t & result to bool to fix: drivers/infiniband/core/sa_query.c:621:33: warning: incorrect type in initializer (different base types) drivers/infiniband/core/sa_query.c:621:33: expected bool [unsigned] [usertype] preload drivers/infiniband/core/sa_query.c:621:33: got restricted gfp_t Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-01-14IB/core: Ethernet L2 attributes in verbs/cm structuresMatan Barak
This patch add the support for Ethernet L2 attributes in the verbs/cm/cma structures. When dealing with L2 Ethernet, we should use smac, dmac, vlan ID and priority in a similar manner that the IB L2 (and the L4 PKEY) attributes are used. Thus, those attributes were added to the following structures: * ib_ah_attr - added dmac * ib_qp_attr - added smac and vlan_id, (sl remains vlan priority) * ib_wc - added smac, vlan_id * ib_sa_path_rec - added smac, dmac, vlan_id * cm_av - added smac and vlan_id For the path record structure, extra care was taken to avoid the new fields when packing it into wire format, so we don't break the IB CM and SA wire protocol. On the active side, the CM fills. its internal structures from the path provided by the ULP. We add there taking the ETH L2 attributes and placing them into the CM Address Handle (struct cm_av). On the passive side, the CM fills its internal structures from the WC associated with the REQ message. We add there taking the ETH L2 attributes from the WC. When the HW driver provides the required ETH L2 attributes in the WC, they set the IB_WC_WITH_SMAC and IB_WC_WITH_VLAN flags. The IB core code checks for the presence of these flags, and in their absence does address resolution from the ib_init_ah_from_wc() helper function. ib_modify_qp_is_ok is also updated to consider the link layer. Some parameters are mandatory for Ethernet link layer, while they are irrelevant for IB. Vendor drivers are modified to support the new function signature. Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-21IB/sa: Export function to pack a path record into wire formatSean Hefty
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>
2013-02-28IB/core: convert to idr_alloc()Tejun Heo
Convert to the much saner new idr interface. v2: Mike triggered WARN_ON() in idr_preload() because send_mad(), which may be used from non-process context, was calling idr_preload() unconditionally. Preload iff @gfp_mask has __GFP_WAIT. Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Sean Hefty <sean.hefty@intel.com> Reported-by: "Marciniszyn, Mike" <mike.marciniszyn@intel.com> Cc: Roland Dreier <roland@kernel.org> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-09IB/sa: Add GuidInfoRecord query supportErez Shitrit
This query is needed for SRIOV alias GUID support. The query is implemented per the IB Spec definition in section 15.2.5.18 (GuidInfoRecord). Signed-off-by: Erez Shitrit <erezsh@mellanox.co.il> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-01-29RDMA: Update missed conversion of flush_scheduled_work()Tejun Heo
Commit f06267104dd9 ("RDMA: Update workqueue usage") introduced ib_wq and removed the use of flush_scheduled_work(); however, during the merge process one chunk was lost in ib_sa_remove_one(). Fix it. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-01-17RDMA: Update workqueue usageTejun Heo
* ib_wq is added, which is used as the common workqueue for infiniband instead of the system workqueue. All system workqueue usages including flush_scheduled_work() callers are converted to use and flush ib_wq. * cancel_delayed_work() + flush_scheduled_work() converted to cancel_delayed_work_sync(). * qib_wq is removed and ib_wq is used instead. This is to prepare for deprecation of flush_scheduled_work(). Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-10-13RDMA/cm: Add RDMA CM support for IBoE devicesEli Cohen
Add support for IBoE device binding and IP --> GID resolution. Path resolving and multicast joining are implemented within cma.c by filling in the responses and running callbacks in the CMA work queue. IP --> GID resolution always yields IPv6 link local addresses; remote GIDs are derived from the destination MAC address of the remote port. Multicast GIDs are always mapped to multicast MACs as is done in IPv6. (IPv4 multicast is enabled by translating IPv4 multicast addresses to IPv6 multicast as described in <http://www.mail-archive.com/ipng@sunroof.eng.sun.com/msg02134.html>.) Some helper functions are added to ib_addr.h. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-10-13IB/mad: IBoE supports only QP1 (no QP0)Eli Cohen
Since IBoE is using Ethernet as its link layer, there is no central management entity so there is need for QP0. QP1 is still needed since it handles communications between CM agents. This patch will skip QP0 and create only QP1 for IBoE ports. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-11-16RDMA/ucma: Add option to manually set IB pathSean Hefty
Export rdma_set_ib_paths to user space to allow applications to manually set the IB path used for connections. This allows alternative ways for a user space application or library to obtain path record information, including retrieving path information from cached data, avoiding direct interaction with the IB SA. The IB SA is a single, centralized entity that can limit scaling on large clusters running MPI applications. Future changes to the rdma cm can expand on this framework to support the full range of features allowed by the IB CM, such as separate forward and reverse paths and APM. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Reviewed-By: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-06IB: Use DEFINE_SPINLOCK() for static spinlocksRoland Dreier
Rather than just defining static spinlock_t variables and then initializing them later in init functions, simply define them with DEFINE_SPINLOCK() and remove the calls to spin_lock_init(). This cleans up the source a tad and also shrinks the compiled code; eg on x86-64: add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-40 (-40) function old new delta ib_uverbs_init 336 326 -10 ib_mad_init_module 147 137 -10 ib_sa_init 123 103 -20 Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-03-03IB/sa_query: Fix AH leak due to update_sm_ah() raceJack Morgenstein
Our testing uncovered a race condition in ib_sa_event(): spin_lock_irqsave(&port->ah_lock, flags); if (port->sm_ah) kref_put(&port->sm_ah->ref, free_sm_ah); port->sm_ah = NULL; spin_unlock_irqrestore(&port->ah_lock, flags); schedule_work(&sa_dev->port[event->element.port_num - sa_dev->start_port].update_task); If two events occur back-to-back (e.g., client-reregister and LID change), both may pass the spinlock-protected code above before the scheduled work updates the port->sm_ah handle. Then if the scheduled work ends up running twice, the second operation will then find a non-NULL port->sm_ah, and will simply overwrite it in update_sm_ah -- resulting in an AH leak. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-07-22IB/sa_query: Check if sm_ah is NULL in ib_sa_remove_one()Ralph Campbell
If update_sm_ah() fails, it leaves the port's sm_ah as NULL. Then if the device or module is removed, ib_sa_remove_one() will dereference a NULL pointer when it calls kref_put(). Fix this by testing if sm_ah is NULL before dropping the reference. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-07-15RDMA: Remove subversion $Id tagsRoland Dreier
They don't get updated by git and so they're worse than useless. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-07-15IB/sa: Fail requests made while creating new SM AHMoni Shoua
This patch solves a race that occurs after an event occurs that causes the SA query module to flush its SM address handle (AH). When SM AH becomes invalid and needs an update it is handled by the global workqueue. On the other hand this event is also handled in the IPoIB driver by queuing work in the ipoib_workqueue that does multicast joins. Although queuing is in the right order, it is done to 2 different workqueues and so there is no guarantee that the first to be queued is the first to be executed. This causes a problem because IPoIB may end up sending an request to the old SM, which will take a long time to time out (since the old SM is gone); this leads to a much longer than necessary interruption in multicast traffer. The patch sets the SA query module's SM AH to NULL when the event occurs, and until update_sm_ah() is done, any request that needs sm_ah fails with -EAGAIN return status. For consumers, the patch doesn't make things worse. Before the patch, MADs are sent to the wrong SM so the request gets lost. Consumers can be improved if they examine the return code and respond to EAGAIN properly but even without an improvement the situation is not getting worse. Signed-off-by: Moni Levy <monil@voltaire.com> Signed-off-by: Moni Shoua <monis@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-10-10IB/sa: Add new QoS fields to path recordSean Hefty
The QoS annex defines new fields for path records. Add them to the ib_sa for consumers that want to use them. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Reviewed-by: Or Gerlitz <ogerlitz@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-10-10IB/sa: Error handling thinko fixAli Ayoub
ib_create_send_mad() returns an error code pointer on error, not NULL. Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-08-03IB/sa: Don't need to check for default P_Key twiceRoland Dreier
Now that ib_find_pkey() ignores the membership bit of P_Keys, there's no need for ib_sa to look for both 0x7fff and 0xffff in a port's P_Key table. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-11IB/sa: Make sure SA queries use default P_KeySean Hefty
MADs sent to the SA should use the the default P_Key (0x7fff/0xffff). There's no requirement that the default P_Key is stored at index 0 in the local P_Key table, so add code to the sa_query module to look up the index of the default P_Key when creating an address handle for the SA (which is done any time the P_Key table might change), and use this index for all SA queries. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09IB: Remove garbage non-ASCII characters from commentsRoland Dreier
A few files had 0xa0 characters in comments. Remove them so that the files are clean ASCII text. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-05-03PCI: Cleanup the includes of <linux/pci.h>Jean Delvare
I noticed that many source files include <linux/pci.h> while they do not appear to need it. Here is an attempt to clean it all up. In order to find all possibly affected files, I searched for all files including <linux/pci.h> but without any other occurence of "pci" or "PCI". I removed the include statement from all of these, then I compiled an allmodconfig kernel on both i386 and x86_64 and fixed the false positives manually. My tests covered 66% of the affected files, so there could be false positives remaining. Untested files are: arch/alpha/kernel/err_common.c arch/alpha/kernel/err_ev6.c arch/alpha/kernel/err_ev7.c arch/ia64/sn/kernel/huberror.c arch/ia64/sn/kernel/xpnet.c arch/m68knommu/kernel/dma.c arch/mips/lib/iomap.c arch/powerpc/platforms/pseries/ras.c arch/ppc/8260_io/enet.c arch/ppc/8260_io/fcc_enet.c arch/ppc/8xx_io/enet.c arch/ppc/syslib/ppc4xx_sgdma.c arch/sh64/mach-cayman/iomap.c arch/xtensa/kernel/xtensa_ksyms.c arch/xtensa/platform-iss/setup.c drivers/i2c/busses/i2c-at91.c drivers/i2c/busses/i2c-mpc.c drivers/media/video/saa711x.c drivers/misc/hdpuftrs/hdpu_cpustate.c drivers/misc/hdpuftrs/hdpu_nexus.c drivers/net/au1000_eth.c drivers/net/fec_8xx/fec_main.c drivers/net/fec_8xx/fec_mii.c drivers/net/fs_enet/fs_enet-main.c drivers/net/fs_enet/mac-fcc.c drivers/net/fs_enet/mac-fec.c drivers/net/fs_enet/mac-scc.c drivers/net/fs_enet/mii-bitbang.c drivers/net/fs_enet/mii-fec.c drivers/net/ibm_emac/ibm_emac_core.c drivers/net/lasi_82596.c drivers/parisc/hppb.c drivers/sbus/sbus.c drivers/video/g364fb.c drivers/video/platinumfb.c drivers/video/stifb.c drivers/video/valkyriefb.c include/asm-arm/arch-ixp4xx/dma.h sound/oss/au1550_ac97.c I would welcome test reports for these files. I am fine with removing the untested files from the patch if the general opinion is that these changes aren't safe. The tested part would still be nice to have. Note that this patch depends on another header fixup patch I submitted to LKML yesterday: [PATCH] scatterlist.h needs types.h http://lkml.org/lkml/2007/3/01/141 Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-24IB/sa: Set src_path_bits correctly in ib_init_ah_from_path()Sean Hefty
src_path_bits needs to mask off the base LID value. Signed-off-by: Sean Hefty <sean.hefty@intel.com>
2007-02-16IB/core: Set static rate in ib_init_ah_from_path()Roland Dreier
The static rate from the path record should be put into the address vector -- a long time ago the rate in the address attributes needed to be a relative rate, which required more munging, but now that the conversion from absolute to relative is done in the low-level driver, it's easy for ib_init_ah_from_path() to put the absolute rate in. Cc: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Cc: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-02-16IB/sa: Track multicast join/leave requestsSean Hefty
The IB SA tracks multicast join/leave requests on a per port basis and does not do any reference counting: if two users of the same port join the same group, and one leaves that group, then the SA will remove the port from the group even though there is one user who wants to stay a member left. Therefore, in order to support multiple users of the same multicast group from the same port, we need to perform reference counting locally. To do this, add an multicast submodule to ib_sa to perform reference counting of multicast join/leave operations. Modify ib_ipoib (the only in-kernel user of multicast) to use the new interface. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-11-22WorkStruct: make allyesconfigDavid Howells
Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
2006-09-22IB/sa: Require SA registrationMichael S. Tsirkin
Require users to register with SA module, to prevent the sa_query module text from going away while an SA query callback is still running. Update all in-tree users for the new interface. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-09-22RDMA: iWARP Core Changes.Tom Tucker
Modifications to the existing rdma header files, core files, drivers, and ulp files to support iWARP, including: - Hook iWARP CM into the build system and use it in rdma_cm. - Convert enum ib_node_type to enum rdma_node_type, which includes the possibility of RDMA_NODE_RNIC, and update everything for this. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-09-22IB: Whitespace fixesRoland Dreier
Remove some trailing whitespace that has snuck in despite the best efforts of whitespace=error-all. Also fix a few other whitespace bogosities. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-08-16IB/core: Fix SM LID/LID change with client reregister setJack Morgenstein
After commit 12bbb2b7be7f5564952ebe0196623e97464b8ac5, when SM LID change or LID change MAD also has a client reregistration bit set, only CLIENT_REREGISTER event is generated. As a result, the sa_query module and the cache module don't update the port information, and ULPs (e.g. IPoIB) stop working. This is the regression we observe as compared to 2.6.17. Rather than generate multiple events (which would have negative performance impact), let us simply let cache and SA query respond to reregister event in the same way as to LID and SM change events. Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il> Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-07-15[PATCH] IB/core: use correct gfp_mask in sa_queryMichael S. Tsirkin
Avoid bogus out of memory errors: fix sa_query to actually pass gfp_mask supplied by the user to idr_pre_get. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Acked-by: "Sean Hefty" <mshefty@ichips.intel.com> Acked-by: "Roland Dreier" <rdreier@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-18IB/cm: Use address handle helpersSean Hefty
Use new ib_init_ah_from_wc() and ib_init_ah_from_path() helper functions to clean up the IB CM. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-06-18IB/sa: Add ib_init_ah_from_path()Sean Hefty
Add a call to initialize address handle attributes given a path record. This is used by the CM, and would be useful for users of UD QPs. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-01-17IB/sa_query: Flush scheduled work before unloading moduleMichael S. Tsirkin
sa_query schedules work on IB asynchronous events. After unregistering the async event handler, make sure that this work has completed before releasing the IB device (and possibly allowing the sa_query module text to go away). Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-10-31[PATCH] fix missing includesTim Schmielau
I recently picked up my older work to remove unnecessary #includes of sched.h, starting from a patch by Dave Jones to not include sched.h from module.h. This reduces the number of indirect includes of sched.h by ~300. Another ~400 pointless direct includes can be removed after this disentangling (patch to follow later). However, quite a few indirect includes need to be fixed up for this. In order to feed the patches through -mm with as little disturbance as possible, I've split out the fixes I accumulated up to now (complete for i386 and x86_64, more archs to follow later) and post them before the real patch. This way this large part of the patch is kept simple with only adding #includes, and all hunks are independent of each other. So if any hunk rejects or gets in the way of other patches, just drop it. My scripts will pick it up again in the next round. Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-25[IB] Fix MAD layer DMA mappings to avoid touching data buffer once mappedSean Hefty
The MAD layer was violating the DMA API by touching data buffers used for sends after the DMA mapping was done. This causes problems on non-cache-coherent architectures, because the device doing DMA won't see updates to the payload buffers that exist only in the CPU cache. Fix this by having all MAD consumers use ib_create_send_mad() to allocate their send buffers, and moving the DMA mapping into the MAD layer so it can be done just before calling send (and after any modifications of the send buffer by the MAD layer). Tested on a non-cache-coherent PowerPC 440SPe system. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-10-24Manual merge of for-linus to upstream (fix conflicts in ↵Roland Dreier
drivers/infiniband/core/ucm.c)
2005-10-24[IB] Add idr_destroy() calls on module unloadRoland Dreier
Add idr_destroy() calls to the module_exit() functions of the four IB driver modules that use idrs, so we don't leak idr_layer_cache objects when these modules are unloaded. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-10-17[IB] fail SA queries if device initialization failedRoland Dreier
If the SA query module's initialization fails for a device, then that device won't have a struct ib_sa_device associated. We should fail SA queries in that case, rather than blindly dereferencing the NULL pointer we get back from ib_get_client_data(). Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-10-08[PATCH] gfp flags annotations - part 1Al Viro
- added typedef unsigned int __nocast gfp_t; - replaced __nocast uses for gfp flags with gfp_t - it gives exactly the same warnings as far as sparse is concerned, doesn't change generated code (from gcc point of view we replaced unsigned int with typedef) and documents what's going on far better. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] IB: Move SA attributes to ib_sa.hHal Rosenstock
SA: Move SA attributes to ib_sa.h so are accessible to more than sa_query.c. Also, remove deprecated attributes and add one missing one. Signed-off-by: Hal Rosenstock <halr@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-09-07[PATCH] IB/sa_query: avoid unnecessary list scanMichael S. Tsirkin
Using ib_get_client_data in SA event handler performs a list scan. It's better to use container_of to get the sa device directly. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-08-27[PATCH] IB: move include files to include/rdmaRoland Dreier
Move the InfiniBand headers from drivers/infiniband/include to include/rdma. This allows InfiniBand-using code to live elsewhere, and lets us remove the ugly EXTRA_CFLAGS include path from the InfiniBand Makefiles. Signed-off-by: Roland Dreier <rolandd@cisco.com>