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path: root/drivers/infiniband/core
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2005-10-17[IB] CM: bind IDs to a specific deviceSean Hefty2-67/+192
Bind communication identifiers to a device to support device removal. Export per HCA CM devices to userspace. Signed-off-by: Sean Hefty <sean.hefty@intel.com>
2005-10-17[IB] merge ucm.h into ucm.cSean Hefty2-104/+41
Eliminate ucm.h. Replace ucm_dbg with direct call to printk KERN_ERR. Signed-off-by: Sean Hefty <sean.hefty@intel.com>
2005-10-17[IB] uverbs: Implement more commandsRoland Dreier3-1/+572
Add kernel support for userspace calling poll CQ, request CQ notification, post send, post receive, post SRQ receive, create AH and destroy AH commands. These commands allow us to support userspace verbs for devices that can't perform these operations directly from userspace (eg the PathScale HCA). Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-10-17[IB] uverbs: Add a mask of device methods allowed for userspaceRoland Dreier1-1/+2
Give each device a uverbs_cmd_mask, so that a low-level driver can control which methods may be called on behalf of userspace. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-10-17[IB] fail SA queries if device initialization failedRoland Dreier1-6/+24
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>
2005-10-17[IB] uverbs: unlock correctly in error pathsRoland Dreier1-2/+6
A couple of functions were missing spin_unlock calls in error paths. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-10-17[IB] Fix leak on MAD initialization failureRoland Dreier1-19/+26
There is a bug in ib_mad_init_device(): if ib_agent_port_open() fails for a given port, then the current code doesn't call ib_mad_port_close() for that port. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-10-17[IB] Check port number in ib_query_port()/ib_modify_port()Roland Dreier1-0/+12
Check port number before passing query_port or modify_port operations on to device driver. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-10-17[IB] uverbs: reject invalid memory registration permission flagsRoland Dreier1-0/+8
Reject userspace memory registrations with invalid permission flags: "local write" is required if "remote write" or "remote atomic" is also requested. Pointed out by Jack Morgenstein <jackm@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-10-17[IB] uverbs: Add device-specific ABI version attributeRoland Dreier1-0/+11
Add abi_version attribute to uverbs class devices to allow for ABI versioning of device-specific interfaces. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-10-17[IB] uverbs: Fix up resource creation error pathsRoland Dreier1-61/+50
By waiting to add resources to our lists until after the last operation that can fail, we don't have to remove them from their lists in the error path. Also, we should hold the idr mutex until we know whether resource creation has succeed or failed, to avoid someone finding a resource in our table before we're ready. Loosely based on work by Robert Walsh <rjwalsh@pathscale.com>. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-10-17[IB] uverbs: ABI-breaking fixes for userspace verbsRoland Dreier3-251/+243
Introduce new userspace verbs ABI version 3. This eliminates some unneeded commands, and adds support for user-created completion channels. This cleans up problems with file leaks on error paths, and also makes sure that file descriptors are always installed into the correct process. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-10-17[IB] Add checks to multicast attach and detachJack Morgenstein1-6/+12
Add checks so that we only allow multicast attach/detach with a valid multicast GID and the correct QP type. Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-10-08[PATCH] gfp flags annotations - part 1Al Viro2-4/+4
- 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>
2005-09-26[IB] uverbs: Close some exploitable racesRoland Dreier3-62/+86
Al Viro pointed out that the current IB userspace verbs interface allows userspace to cause mischief by closing file descriptors before we're ready, or issuing the same command twice at the same time. This patch closes those races, and fixes other obvious problems such as a module reference leak. Some other interface bogosities will require an ABI change to fix properly, so I'm deferring those fixes until 2.6.15. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-09-21[IB] Fix RMPP receive length calculationHal Rosenstock1-2/+2
Based on simplification idea from Sean Hefty <sean.hefty@intel.com> Signed-off-by: Hal Rosenstock <halr@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-09-21[IB] Add MAD data field size definitionsSean Hefty1-9/+6
Clean up code by using enums instead of hard-coded magic numbers. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-09-19[PATCH] IB: Fix data length for RMPP SA sendsHal Rosenstock1-2/+3
We need to subtract off the header length from our payload length when sending multi-packet SA messages. Signed-off-by: Hal Rosenstock <halr@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-09-11Merge master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband Linus Torvalds9-226/+395
2005-09-09[PATCH] IB: fix CM use-after-freeRoland Dreier1-0/+1
If the CM REQ handling function gets to error2, then it frees cm_id_priv->timewait_info. But the next line goes through ib_destroy_cm_id() -> ib_send_cm_rej() -> cm_reset_to_idle(), which ends up calling cm_cleanup_timewait(), which dereferences the pointer we just freed. Make sure we clear cm_id_priv->timewait_info after freeing it, so that doesn't happen. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-09-09[PATCH] IB CM: support CM redirJohn Kingman1-1/+3
Changes to CM to support CM and port redirection (REJ reason 24). Signed-off-by: John Kingman <kingman <at> storagegear.com> Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-09-09Make sure that userspace does not retrieve stale asynchronous orRoland Dreier3-88/+191
completion events after destroying a CQ, QP or SRQ. We do this by sweeping the event lists before returning from a destroy calls, and then return the number of events already reported before the destroy call. This allows userspace wait until it has processed all events for an object returned from the kernel before it frees its context for the object. The ABI of the destroy CQ, destroy QP and destroy SRQ commands has to change to return the event count, so bump the ABI version from 1 to 2. The userspace libibverbs library has already been updated to handle both the old and new ABI versions. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-09-09[PATCH] IB: Move SA attributes to ib_sa.hHal Rosenstock1-26/+0
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] drivers: convert kcalloc to kzallocPekka Enberg1-1/+1
This patch converts kcalloc(1, ...) calls to use the new kzalloc() function. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07[PATCH] IB: clean up user access config optionsJames Lentini1-2/+3
Add a new config option INFINIBAND_USER_MAD to control whether we build ib_umad. Change INFINIBAND_USER_VERBS to INFINIBAND_USER_ACCESS, and have it control ib_ucm and ib_uat as well as ib_uverbs. Signed-off-by: James Lentini <jlentini@netapp.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-09-07[PATCH] IB: RMPP fixesHal Rosenstock1-1/+3
- Fix payload length of middle RMPP sent segments. Middle payload lengths should be 0 on the send side. (This is perhaps a compliance and should not be an interop issue as middle payload lengths are supposed to be ignored on receive). - Fix length in first segment of multipacket sends (This is a compliance issue but does not affect at least OpenIB to OpenIB RMPP transfers). Signed-off-by: Hal Rosenstock <halr@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-09-07[PATCH] IB: Add user-supplied context to userspace CM ABISean Hefty2-106/+192
- Add user specified context to all uCM events. Users will not retrieve any events associated with the context after destroying the corresponding cm_id. - Provide the ib_cm_init_qp_attr() call to userspace clients of the CM. This call may be used to set QP attributes properly before modifying the QP. - Fixes some error handling synchonization and cleanup issues. - Performs some minor code cleanup. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-09-07[PATCH] IB/sa_query: avoid unnecessary list scanMichael S. Tsirkin1-2/+2
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>
2005-08-26[PATCH] IB: move include files to include/rdmaRoland Dreier17-25/+23
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>
2005-08-26[PATCH] IB: Add handling for ABORT and STOP RMPP MADs.Sean Hefty1-65/+244
Add handling for ABORT / STOP RMPP MADs. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-08-26[PATCH] IB: fix userspace CM deadlockSean Hefty2-313/+160
Fix deadlock condition resulting from trying to destroy a cm_id from the context of a CM thread. The synchronization around the ucm context structure is simplified as a result, and some simple code cleanup is included. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-08-26[PATCH] IB: userspace SRQ supportRoland Dreier3-3/+204
Add SRQ support to userspace verbs module. This adds several commands and associated structures, but it's OK to do this without bumping the ABI version because the commands are added at the end of the list so they don't change the existing numbering. There are two cases to worry about: 1. New kernel, old userspace. This is OK because old userspace simply won't try to use the new SRQ commands. None of the old commands are changed. 2. Old kernel, new userspace. This works perfectly as long as userspace doesn't try to use SRQ commands. If userspace tries to use SRQ commands, it will get EINVAL, which is perfectly reasonable: the kernel doesn't support SRQs, so we couldn't do any better. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-08-26[PATCH] IB: Add SRQ support to midlayerRoland Dreier1-0/+60
Make the required core API additions and changes for shared receive queues (SRQs). Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-08-26[PATCH] IB: Remove unnecessary includes of <linux/version.h>Olaf Hering1-1/+0
changing CONFIG_LOCALVERSION rebuilds too much, for no appearent reason. Remove unneeded includes of <linux/version.h>. Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-08-26[PATCH] IB: Fix ib_mad_thread_completion_handler declarationHal Rosenstock1-3/+2
Change ib_mad_thread_completion_handler to conform to ib_comp_handler declaration. Signed-off-by: Hal Rosenstock <halr@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-08-26[PATCH] IB: unmap FMRs when destroying FMR poolRoland Dreier1-0/+6
Make sure that all FMRs are unmapped before we deallocate them so that we don't leak references to our protection domain when destroying an FMR pool. (Bug reported by Guy German <guyg@voltaire.com>) Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-08-26[PATCH] IB: sparse endianness cleanupSean Hefty8-188/+191
Fix sparse warnings. Use __be* where appropriate. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-08-26[PATCH] IB: Add copyright noticesRoland Dreier14-17/+33
Make some lawyers happy and add copyright notices for people who forgot to include them when they actually touched the code. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-08-26[PATCH] IB: fix use-after-free in user verbs cleanupRoland Dreier1-1/+2
Fix a use-after-free bug in userspace verbs cleanup: we can't touch mr->device after we free mr by calling ib_dereg_mr(). Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[IB/ucm]: Clean up userspace CMHal Rosenstock1-47/+41
Only print debug messages when debug_level is set. Eliminate NULL checks prior to calling kfree. Signed-off-by: Hal Rosenstock <halr@voltaire.com> Signed-off-by: Libor Michalek <libor@topspin.com>
2005-07-27Merge /scratch/Ksrc/linux-git/Roland Dreier15-428/+7232
2005-07-27[PATCH] IB: Eliminate sparse warnings in SA clientHal Rosenstock1-3/+3
Eliminate sparse warnings in SA client Signed-off-by: Hal Rosenstock <halr@voltaire.com> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] IB: Hook up userspace CM to the make systemHal Rosenstock1-1/+3
Hook up userspace CM to the make system Signed-off-by: Libor Michalek <libor@topspin.com> Signed-off-by: Hal Rosenstock <halr@voltaire.com> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] Add kernel portion of user CM implementation (fix)Tom Duffy1-8/+5
Include the patch openib-general changing class_simple to class. Signed-off-by: Tom Duffy <tduffy@sun.com> Cc: Hal Rosenstock <halr@voltaire.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] IB: Add kernel portion of user CM implementationHal Rosenstock2-0/+1485
Add kernel portion of user CM implementation Signed-off-by: Libor Michalek <libor@topspin.com> Signed-off-by: Hal Rosenstock <halr@voltaire.com> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] IB: Implementation for RMPP support in user MADHal Rosenstock1-106/+194
Implementation for RMPP support in user MAD Signed-off-by: Hal Rosenstock <halr@voltaire.com> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] IB: Add the kernel CM implementationHal Rosenstock3-1/+4147
Add the kernel CM implementation Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Hal Rosenstock <halr@voltaire.com> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] IB: Add Service Record support to SA clientHal Rosenstock1-2/+164
Add Service Record support to SA client Signed-off-by: Hal Rosenstock <halr@voltaire.com> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] IB: Add RMPP implementationHal Rosenstock5-50/+966
Add RMPP implementation. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Hal Rosenstock <halr@voltaire.com> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] IB: Introduce RMPP APIsHal Rosenstock2-21/+3
Introduce RMPP APIs Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Hal Rosenstock <halr@voltaire.com> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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