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| * [PATCH] IB: Add ib_coalesce_recv_mad to MADHal Rosenstock2005-07-272-10/+2
| | | | | | | | | | | | | | | | | | | | | | Add implementation for ib_coalesce_recv_mad. Also, clear allocated MAD data buffer in ib_create_send_mad. 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>
| * [PATCH] IB: Minor cleanup during MAD startup and shutdownHal Rosenstock2005-07-271-35/+9
| | | | | | | | | | | | | | | | | | Minor cleanup during startup and shutdown 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>
| * [PATCH] IB: Fix timeout/cancelled MAD handlingHal Rosenstock2005-07-272-2/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | Fixes an issue processing a sent MAD after it has timed out or been canceled. The race occurs when a response MAD matches with the send request. The request could time out or be canceled after the response MAD matches with the request, but before the request completion can be processed. 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>
| * [PATCH] IB: Change ib_mad_send_wr_private structHal Rosenstock2005-07-272-14/+12
| | | | | | | | | | | | | | | | | | | | | | | | Have ib_mad_send_wr_private reference the private agent structure directly, rather than the exposed agent definition. Remove unneeded parameters to functions and simplify code were possible from this change. 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>
| * [PATCH] IB: Change saving of user's send wr_id in MADHal Rosenstock2005-07-271-2/+2
| | | | | | | | | | | | | | | | | | | | | | Move saving of user's send wr_id to better match layering of received response handling. 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>
| * [PATCH] IB: Combine some MAD routinesHal Rosenstock2005-07-271-78/+27
| | | | | | | | | | | | | | | | | | | | | | Combine response_mad() and solicited_mad() routines into a single function and simplify/encapsulate its usage. 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>
| * [PATCH] IB: Add MAD helper functionsHal Rosenstock2005-07-272-0/+136
| | | | | | | | | | | | | | | | | | | | | | Add new helper routines for allocating MADs for sending and formatting a send WR. 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>
| * [PATCH] IB: Update MAD client APIHal Rosenstock2005-07-275-40/+24
| | | | | | | | | | | | | | | | | | | | | | Automatically allocate a MR when registering a MAD agent. MAD clients are modified to use this updated API. 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>
| * [PATCH] IB: Update FMR functionsHal Rosenstock2005-07-272-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | Change some functions to return void rather than an int since they are always returning 0, thus making checking return values rather pointless. Signed-off-by: Tom Duffy <tduffy@sun.com> 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>
* | [IB/mthca]: Use io_remap_pfn_range for PCI spaceMichael S. Tsirkin2005-07-271-3/+3
| | | | | | | | | | | | | | Use io_remap_pfn_range to remap IO pages (remap_pfn_range is for memory). Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* | [IB/ipoib]: Fix unsigned comparisons to handle wraparoundRoland Dreier2005-07-271-3/+3
| | | | | | | | | | | | Fix handling of tx_head/tx_tail comparisons to handle wraparound. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* | [IB/uverbs]: Add O_ASYNC supportGleb Natapov2005-07-272-1/+14
| | | | | | | | | | | | | | | | Add support for O_ASYNC notifications on userspace verbs completion and asynchronous event file descriptors. Signed-off-by: Gleb Natapov <glebn@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* | [IB/mthca]: Fix error CQ entry handling on mem-free HCAsRoland Dreier2005-07-271-1/+5
|/ | | | | | | | Fix handling of error CQ entries on mem-free HCAs: the doorbell count is never valid so we shouldn't look at it. This fixes problems exposed by new HCA firmware. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* [PATCH] IB uverbs: add mthca user QP supportRoland Dreier2005-07-073-85/+212
| | | | | | | | Add support for userspace queue pairs (QPs) to mthca. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB uverbs: add mthca user CQ supportRoland Dreier2005-07-074-37/+110
| | | | | | | | Add support for userspace completion queues (CQs) to mthca. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB uverbs: add mthca user MR supportRoland Dreier2005-07-071-0/+82
| | | | | | | | Add support for userspace memory regions (MRs) to mthca. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB uverbs: add mthca user PD supportRoland Dreier2005-07-075-12/+28
| | | | | | | | Add support for userspace protection domains (PDs) to mthca. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB uverbs: add mthca mmap supportRoland Dreier2005-07-071-0/+18
| | | | | | | | | | | | | | Add support for mmap() method to mthca, so that userspace can get access to doorbell registers. This allows userspace to get direct access to the HCA for data path operations. Each userspace context gets its own copy of the doorbell registers and is only allowed to use resources that the kernel has given it access to. In other words, this is safe. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB uverbs: add mthca user context supportRoland Dreier2005-07-072-0/+72
| | | | | | | | Add support for managing userspace contexts to mthca. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB uverbs: add mthca user doorbell record supportRoland Dreier2005-07-072-6/+149
| | | | | | | | Add support for userspace doorbell records to mthca. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB uverbs: add mthca ABI headerRoland Dreier2005-07-071-0/+81
| | | | | | | | | Add the mthca_user.h header file, which defines the device-specific ABI used by the mthca low-level driver for kernel/user communication. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB uverbs: hook up Kconfig/MakefileRoland Dreier2005-07-072-1/+14
| | | | | | | | Hook up InfiniBand userspace verbs to Kconfig and the make system. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB uverbs: memory pinning implementationRoland Dreier2005-07-071-0/+221
| | | | | | | | | | Add support for pinning userspace memory regions and returning a list of pages in the region. This includes tracking pinned memory against vm_locked and preventing unprivileged users from exceeding RLIMIT_MEMLOCK. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB uverbs: core implementationRoland Dreier2005-07-073-0/+1836
| | | | | | | | | | Add the core of the InfiniBand userspace verbs implementation, including creating character device nodes, dispatching requests from userspace, and passing event notifications back up to userspace. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB uverbs: add user verbs ABI headerRoland Dreier2005-07-071-0/+389
| | | | | | | | | Add the ib_user_verbs.h header file, which defines the ABI used by InfiniBand userspace verbs for kernel/user communication. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB uverbs: update mthca for new APIRoland Dreier2005-07-071-3/+10
| | | | | | | | Update mthca to compile against the updated API for low-level drivers. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB uverbs: update kernel midlayer for new APIRoland Dreier2005-07-071-12/+20
| | | | | | | | | | | Update kernel InfiniBand midlayer to compile against the updated API for low-level drivers. This just amounts to passing NULL for all userspace-related parameters, and setting userspace-related structure members to NULL. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB uverbs: core API extensionsRoland Dreier2005-07-071-18/+106
| | | | | | | | | | | | | | | | | | | | | | | | First of a series of patches which add support for direct userspace access to InfiniBand hardware -- so-called "userspace verbs." I believe these patches are ready to merge, but a final review would be useful. These patches should incorporate all of the feedback from the discussion when I posted an earlier version back in April (see http://lkml.org/lkml/2005/4/4/267 for the start of the thread). In particular, memory pinned for use by userspace is accounted for in current->mm->vm_locked and requests to pin memory are checked against RLIMIT_MEMLOCK. This patch: Modify the ib_verbs.h header file with changes required for InfiniBand userspace verbs support. We add a few structures to keep track of userspace context, and extend the driver API so that low-level drivers know when they're creating resources that will be used from userspace. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB: Fix pack/unpack when size_bits == 64Roland Dreier2005-06-271-2/+2
| | | | | | | | Fix handling of fields with size_bits == 64. Pointed out by Hal Rosenstock. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB: Fix race in sa_queryRoland Dreier2005-06-271-5/+13
| | | | | | | | | | | Use a copy of the id we'll return to the consumer so that we don't dereference query->sa_query after calling send_mad(). A completion may occur very quickly and end up freeing the query before we get to do anything after send_mad(). Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: Bump versionRoland Dreier2005-06-271-2/+2
| | | | | | | | It's about time for a version bump. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: Align FW command mailboxes to 4KRoland Dreier2005-06-278-422/+329
| | | | | | | | | | Future versions of Mellanox HCA firmware will require command mailboxes to be aligned to 4K. Support this by using a pci_pool to allocate all mailboxes. This has the added benefit of shrinking the source and text of mthca. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: Encapsulate command interface initRoland Dreier2005-06-273-16/+30
| | | | | | | | Encapsulate mthca command interface initialization/cleanup. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: Fix memory leak on error pathRoland Dreier2005-06-271-0/+1
| | | | | | | | Free page_list buffer on error path of mthca_reg_phys_mr(). Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: Split off MTT allocationRoland Dreier2005-06-273-168/+177
| | | | | | | | | Split allocation of MTT range from creation of MR. This will be useful for implementing shared memory regions and userspace verbs. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: Move mthca_is_memfree checksRoland Dreier2005-06-274-19/+22
| | | | | | | | | | | Make mthca_table_put() and mthca_table_put_range() NOPs if the device is not mem-free, so that we don't have to have "if (mthca_is_memfree())" tests in the callers of these functions. This makes our code more readable and maintainable, and saves a couple dozen bytes of text in ib_mthca.ko as well. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: Fix memset sizeRoland Dreier2005-06-271-1/+1
| | | | | | | | Fix memset to use sizeof *props instead of just sizeof props. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: Enable unreliable connected transportRoland Dreier2005-06-271-1/+78
| | | | | | | | | | Add support for unreliable connected (UC) transport to mthca driver: - Add attributes for UC to modify QP table. - Add support for posting UC work requests. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: Set RDMA/atomic capabilities correctlyRoland Dreier2005-06-271-8/+8
| | | | | | | | | | | | | mthca apparently had the meanings of the max_rd_atomic and max_dest_rd_atomic QP attributes backwards. max_rd_atomic limits the maximum number of outstanding RDMA/atomic requests as an initiator (on a send queue), and max_dest_rd_atomic specifies the resources allocated to handle RMDA/atomic requests from the remote end of the connection. We were programming our QP context with these values swapped. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: Set QP static rate correctlyRoland Dreier2005-06-271-1/+1
| | | | | | | | Fix offset of static_rate in QP context. Pointed out by Dror Goldenberg. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: Use dma_alloc_coherent instead of pci_alloc_consistentRoland Dreier2005-06-273-27/+29
| | | | | | | | | | Switch all allocations of coherent memory from pci_alloc_consistent() to dma_alloc_coherent(), so that we can pass GFP_KERNEL. This should help when the system is low on memory. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: Clean up CQ debugRoland Dreier2005-06-271-21/+18
| | | | | | | | | Clean up CQ debugging code: make dump_cqe print on one line, and only dump error CQ entries for local operation errors. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: Clean up error messagesBernhard Fischer2005-06-272-10/+7
| | | | | | | | | | - Fix incorrect cut-n-paste in error messages. - Add missing newlines in error messages. - Use DRV_NAME instead of "ib_mthca" in a couple of places. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: Add Sun copyright noticeTom Duffy2005-06-276-0/+6
| | | | | | | | | Add Sun copyright to files modified by Tom Duffy. Signed-off-by: Tom Duffy <tduffy@sun.com> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] sysfs: (rest) if show/store is missing return -EIODmitry Torokhov2005-06-201-1/+1
| | | | | | | | | sysfs: fix the rest of the kernel so if an attribute doesn't implement show or store method read/write will return -EIO instead of 0 or -EINVAL or -EPERM. Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] Make attributes names const char *Dmitry Torokhov2005-06-201-71/+49
| | | | | | | sysfs: make attributes and attribute_group's names const char * Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] IB: fix endianness of path record MTU fieldRoland Dreier2005-05-251-2/+2
| | | | | | | | | Make MTU field in SA PathRecord and MCMemberRecord a u8 rather than an enum to avoid complications with endianness. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB: fix potential ib_umad leakRoland Dreier2005-05-251-0/+4
| | | | | | | | | Free all unclaimed MAD receive buffers when userspace closes our file so we don't leak memory. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB: allow NULL sa_query callbacksRoland Dreier2005-05-251-17/+18
| | | | | | | | | | | | | | | Check if a client passes a NULL callback into an SA query, and if so, never call back. This fixes an oops if someone unloads ib_ipoib and ib_sa in rapid succession. ib_ipoib does an MCMember delete with a NULL callback and 0 timeout on unload, which is usually fine since the delete completes successfully. However, if ib_sa is unloaded immediately afterwards, the delete will be canceled and ib_sa will try to call the (now already unloaded) ib_ipoib module back with the cancel completion, which triggers the oops. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fix include order in mthca_memfree.cRoland Dreier2005-05-011-1/+2
| | | | | | | | Fix order of #include lines in mthca_memfree.c Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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