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* Various typo fixes.Robert P. J. Day2007-02-172-2/+2
| | | | | | | | Correct mis-spellings of "algorithm", "appear", "consistent" and (shame, shame) "kernel". Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [PATCH] Scheduled removal of SA_xxx interrupt flags fixupsThomas Gleixner2007-02-142-3/+3
| | | | | | | | | | | | | | | | | | | | | | The obsolete SA_xxx interrupt flags have been used despite the scheduled removal. Fixup the remaining users. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Jeff Garzik <jeff@garzik.org> Cc: Wim Van Sebroeck <wim@iguana.be> Cc: Roland Dreier <rolandd@cisco.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Greg KH <greg@kroah.com> Cc: Dave Airlie <airlied@linux.ie> Cc: James Simmons <jsimmons@infradead.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] remove many unneeded #includes of sched.hTim Schmielau2007-02-141-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | After Al Viro (finally) succeeded in removing the sched.h #include in module.h recently, it makes sense again to remove other superfluous sched.h includes. There are quite a lot of files which include it but don't actually need anything defined in there. Presumably these includes were once needed for macros that used to live in sched.h, but moved to other header files in the course of cleaning it up. To ease the pain, this time I did not fiddle with any header files and only removed #includes from .c-files, which tend to cause less trouble. Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha, arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig, allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all configs in arch/arm/configs on arm. I also checked that no new warnings were introduced by the patch (actually, some warnings are removed that were emitted by unnecessarily included header files). Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2007-02-1446-114/+11279
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband: IB/mthca: Always fill MTTs from CPU IB/mthca: Merge MR and FMR space on 64-bit systems IB/mthca: Fix access to MTT and MPT tables on non-cache-coherent CPUs IB/mthca: Give reserved MTTs a separate cache line IB/mthca: Fix reserved MTTs calculation on mem-free HCAs RDMA/cxgb3: Add driver for Chelsio T3 RNIC IB: Remove redundant "_wq" from workqueue names RDMA/cma: Increment port number after close to avoid re-use IB/ehca: Fix memleak on module unloading IB/mthca: Work around gcc bug on sparc64 IPoIB: Connected mode experimental support IB/core: Use ARRAY_SIZE macro for mandatory_table IB/mthca: Use correct structure size in call to memset()
| * IB/mthca: Always fill MTTs from CPUMichael S. Tsirkin2007-02-133-9/+89
| | | | | | | | | | | | | | | | | | | | | | Speed up memory registration by filling in MTTs directly when the CPU can write directly to the whole table (all mem-free cards, and to Tavor mode on 64-bit systems with the patch I posted earlier). This reduces the number of FW commands needed to register an MR by at least a factor of 2 and speeds up memory registration significantly. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/mthca: Merge MR and FMR space on 64-bit systemsMichael S. Tsirkin2007-02-132-6/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | For Tavor, we currently reserve separate MPT and MTT space for FMRs to avoid abusing the vmalloc space on 32 bit kernels. No such problem exists on 64 bit kernels so let's not do it there. This way we have a shared pool for MR and FMR resources, used on demand. This will also make it possible to write MTTs for regular regions directly from driver. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/mthca: Fix access to MTT and MPT tables on non-cache-coherent CPUsMichael S. Tsirkin2007-02-135-50/+131
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We allocate the MTT table with alloc_pages() and then do pci_map_sg(), so we must call pci_dma_sync_sg() after the CPU writes to the MTT table. This works since the device will never write MTTs on mem-free HCAs, once we get rid of the use of the WRITE_MTT firmware command. This change is needed to make that work, and is an improvement for now, since it gives FMRs a chance at working. For MPTs, both the device and CPU might write there, so we must allocate DMA coherent memory for these. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/mthca: Give reserved MTTs a separate cache lineMichael S. Tsirkin2007-02-131-0/+4
| | | | | | | | | | | | | | | | | | MTTs are allocated in non-cache-coherent memory, so we must give reserved MTTs their own cache line, to prevent both device and CPU from writing into the same cache line at the same time. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/mthca: Fix reserved MTTs calculation on mem-free HCAsMichael S. Tsirkin2007-02-131-1/+5
| | | | | | | | | | | | | | | | | | The reserved_mtts field has different meaning in Tavor and Arbel, so we are wasting mtt entries on memfree. Fix the Arbel case to match Tavor semantics. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * RDMA/cxgb3: Add driver for Chelsio T3 RNICSteve Wise2007-02-1322-0/+9389
| | | | | | | | | | | | | | Add an RDMA/iWARP driver for the Chelsio T3 1GbE and 10GbE adapters. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB: Remove redundant "_wq" from workqueue namesSean Hefty2007-02-102-2/+2
| | | | | | | | Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * RDMA/cma: Increment port number after close to avoid re-useSean Hefty2007-02-101-10/+56
| | | | | | | | | | | | | | | | | | Randomize the starting port number and avoid re-using port values immediately after they are closed. Instead keep track of the last port value used and increment it every time a new port number is assigned, to better replicate other port spaces. Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/ehca: Fix memleak on module unloadingAkinobu Mita2007-02-101-0/+2
| | | | | | | | | | | | | | | | | | | | | | Percpu data is not freed on module unloading. Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Christoph Raisch <raisch@de.ibm.com> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/mthca: Work around gcc bug on sparc64David Howells2007-02-101-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For some reason gcc-3.4.5 on sparc64 does: WARNING: "____ilog2_NaN" [drivers/infiniband/hw/mthca/ib_mthca.ko] undefined! Points to note: (1) The asm volatile flush/flushw are just markers for viewing what comes out in the assembly; removing them has no effect on the result. (2) Changing almost anything else in dwh__mthca_arbel_init_srq_context() or dwh__mthca_alloc_srq() causes the problem to go away. The compiler command line issued by the kernel build is: /opt/crosstool/gcc-3.4.5-glibc-2.3.6/sparc64-unknown-linux-gnu/bin/sparc64-unknown-linux-gnu-gcc -fno-strict-aliasing -fno-common -Os -m64 -mno-fpu -mcpu=ultrasparc -mcmodel=medlow -ffixed-g4 -ffixed-g5 -fcall-used-g7 -Wa,--undeclared-regs -pg -fno-omit-frame-pointer -fno-optimize-sibling-calls -fasynchronous-unwind-tables -g -c -o drivers/infiniband/hw/mthca/.tmp_mthca_srq.o drivers/infiniband/hw/mthca/mthca_srq.c This can be reduced to this whilst still retaining the problem: /opt/crosstool/gcc-3.4.5-glibc-2.3.6/sparc64-unknown-linux-gnu/bin/sparc64-unknown-linux-gnu-gcc -m64 -c -o drivers/infiniband/hw/mthca/mthca_srq.o drivers/infiniband/hw/mthca/mthca_srq.c -Os Removing -Os or changing it to -O or -O0 thru -O6 gets rid of the problem. This patch to the kernel code fixes the problem: Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IPoIB: Connected mode experimental supportMichael S. Tsirkin2007-02-109-32/+1575
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following patch adds experimental support for IPoIB connected mode, as defined by the draft from the IETF ipoib working group. The idea is to increase performance by increasing the MTU from the maximum of 2K (theoretically 4K) supported by IPoIB on top of UD. With this code, I'm able to get 800MByte/sec or more with netperf without options on a Mellanox 4x back-to-back DDR system. Some notes on code: 1. SRQ is used for scalability to large cluster sizes 2. Only RC connections are used (UC does not support SRQ now) 3. Retry count is set to 0 since spec draft warns against retries 4. Each connection is used for data transfers in only 1 direction, so each connection is either active(TX) or passive (RX). 2 sides that want to communicate create 2 connections. 5. Each active (TX) connection has a separate CQ for send completions - this keeps the code simple without CQ resize and other tricks 6. To detect stale passive side connections (where the remote side is down), we keep an LRU list of passive connections (updated once per second per connection) and destroy a connection after it has been unused for several seconds. The LRU rule makes it possible to avoid scanning connections that have recently been active. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/core: Use ARRAY_SIZE macro for mandatory_tableAhmed S. Darwish2007-02-101-1/+2
| | | | | | | | | | | | | | | | Use ARRAY_SIZE() macro already defined in kernel.h instead of open coding equivalent code. Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/mthca: Use correct structure size in call to memset()Roland Dreier2007-02-101-1/+1
| | | | | | | | | | | | | | | | | | When clearing the ib_ah_attr parameter in to_ib_ah_attr(), use sizeof *ib_ah_attr instead of sizeof *path. Pointed out by Jack Morgenstein <jackm@mellanox.co.il>. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* | [PATCH] mark struct file_operations const 3Arjan van de Ven2007-02-129-22/+22
| | | | | | | | | | | | | | | | | | | | | | Many struct file_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | [PATCH] Transform kmem_cache_alloc()+memset(0) -> kmem_cache_zalloc().Robert P. J. Day2007-02-114-10/+5
|/ | | | | | | | | | | | | | | | | | | | | | Replace appropriate pairs of "kmem_cache_alloc()" + "memset(0)" with the corresponding "kmem_cache_zalloc()" call. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Andi Kleen <ak@muc.de> Cc: Roland McGrath <roland@redhat.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Greg KH <greg@kroah.com> Acked-by: Joel Becker <Joel.Becker@oracle.com> Cc: Steven Whitehouse <swhiteho@redhat.com> Cc: Jan Kara <jack@ucw.cz> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Stephen Smalley <sds@tycho.nsa.gov> Cc: James Morris <jmorris@namei.org> Cc: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] iscsi endianness annotationsAl Viro2007-02-091-2/+2
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Network: convert network devices to use struct device instead of class_deviceGreg Kroah-Hartman2007-02-072-24/+20
| | | | | | | | | | | This lets the network core have the ability to handle suspend/resume issues, if it wants to. Thanks to Frederik Deweerdt <frederik.deweerdt@gmail.com> for the arm driver fixes. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* IB/ehca: Remove obsolete prototypesHoang-Nam Nguyen2007-02-041-14/+0
| | | | | | | Remove prototypes for functions that don't exist. Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Remove use of do_mmap()Hoang-Nam Nguyen2007-02-046-363/+204
| | | | | | | | | | | | This patch removes do_mmap() from ehca: - Call remap_pfn_range() for hardware register block - Use vm_insert_page() to register memory allocated for completion queues and queue pairs - The actual mmap() call/trigger is now controlled by user space, ie. libehca Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/addr: Handle ethernet neighbour updates during route resolutionSteve Wise2007-02-041-2/+1
| | | | | | | | | | | | | | | The iWARP connection manager uses the ib_addr services to do route resolution (neighbour discovery in the IP world). The ib_addr netevent callback routine, however, currently only acts on InfiniBand neighbour updates. It needs to act on ethernet neighbour updates as well. This patch just removes filtering on device type altogether and will trigger on any neighour updates where the nud_type is valid. This simplifies the code some. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/srp: Don't wait for response when QP is in error state.Ishai Rabinovitz2007-02-042-0/+8
| | | | | | | | | | | | | | | When there is a call to send_tsk_mgmt SRP posts a send and waits for 5 seconds to get a response. When the QP is in the error state it is obvious that there will be no response so it is quite useless to wait. In fact, the timeout causes SRP to wait a long time to reconnect when a QP error occurs. (Each abort and each reset_device calls send_tsk_mgmt, which waits for the timeout). The following patch solves this problem by identifying the failure and returning an immediate error code. Signed-off-by: Ishai Rabinovitz <ishai@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB: Return qp pointer as part of ib_wcMichael S. Tsirkin2007-02-0411-24/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | struct ib_wc currently only includes the local QP number: this matches the IB spec, but seems mostly useless. The following patch replaces this with the pointer to qp itself, and updates all low level drivers and all users. This has the following advantages: - Ability to get a per-qp context through wc->qp->qp_context - Existing drivers already have the qp pointer ready in poll cq, so this change actually saves a tiny bit (extra memory read) on data path (for ehca it would actually be expensive to find the QP pointer when polling a CQ, but ehca does not support SRQ so we can leave wc->qp as NULL for ehca) - Users that need the QP number can still get it through wc->qp->qp_num Use case: In IPoIB connected mode code, I have a common CQ shared by multiple QPs. To track connection usage, I need a way to get at some per-QP context upon the completion, and I would like to avoid allocating context object per work request just to stick a QP pointer into it. With this code, I can just use wc->qp->qp_context. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Fix mismatched spin_unlock in irq handlerHoang-Nam Nguyen2007-01-231-1/+2
| | | | | | | | The lock is taken with _irqsave and hence must be released with _irqrestore on all paths. Signed-off-by Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Fix improper use of yield() with spinlock heldHoang-Nam Nguyen2007-01-231-1/+4
| | | | | Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/srp: Check match_strdup() returnIshai Rabinovitz2007-01-231-0/+20
| | | | | | | | Checks if the kmalloc in match_strdup() was successful, and bail out on looking at the token if it failed. Signed-off-by: Ishai Rabinovitz <ishai@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mthca: Don't execute QUERY_QP firmware command for QP in RESET stateDotan Barak2007-01-091-9/+17
| | | | | | | | If a QP being queried is in the RESET state, don't execute the QUERY_QP firmware command (because it will fail). Signed-off-by: Dotan Barak <dotanb@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Use proper GFP_ flags for get_zeroed_page()Hoang-Nam Nguyen2007-01-096-16/+16
| | | | | | | | | | | | | | | | Here is a patch for ehca to use proper flag, ie. GFP_ATOMIC resp. GFP_KERNEL, when calling get_zeroed_page() to prevent "Bug: scheduling while atomic...". This error does not cause a kernel panic but makes ipoib un-usable afterwards. It is reproducible on 2.6.20-rc4 if one does ifconfig down during a flood ping test. I have not observed this error in earlier releases incl. 2.6.20-rc1. This error occurs when a qp event/irq is received and ehca event handler allocates a control block/page to obtain HCA error data block. Use of GFP_ATOMIC when in interrupt context prevents this issue. Signed-off-by Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mthca: Fix PRM compliance problem in atomic-send completionsJack Morgenstein2007-01-081-2/+6
| | | | | | | | | | | | According to the Tavor and Arbel programmer's reference manuals, the number of bytes transferred is not provided in the byte_cnt field of the CQ entry for atomic operation completions. For atomic operations, the number of bytes transferred is always 8 (when the status is "success"), and this constant value should always be used by the driver in the ib_wc entry returned, rather than using the CQE. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/ucma: Don't report events with invalid user contextSean Hefty2007-01-081-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | There's a problem with how rdma cm events are reported to userspace that can lead to application crashes. When a new connection request arrives, a context for the connection is allocated in the kernel. The connection event is then reported to userspace. The userspace library retrieves the event and allocates its own context for the connection. The userspace context is associated with the kernel's context when accepting. This allows the kernel to give userspace context with other events. A problem occurs if a second event for the same connection occurs before the user has had a chance to call accept. The userspace context has not yet been set, which causes the librdmacm to crash. (This has been seen when the app takes too long to call accept, resulting in the remote side timing out and rejecting the connection) Fix this by ignoring events for new connections until userspace has set their context. This can only happen if an error occurs on a new connection before the user accepts it. This is okay, since the accept will just fail later. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/ucma: Fix struct ucma_event leak when backlog is fullSean Hefty2007-01-081-0/+1
| | | | | | | | | We discard new connection requests while the listen backlog is full, but leak a struct ucma_event in the process. Free the structure in this case. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/iwcm: iWARP connection timeouts shouldn't be reported as rejectsSteve Wise2007-01-081-3/+14
| | | | | | | | | The iWARP CM should report timeouts as event RDMA_CM_EVENT_UNREACHABLE, not event RDMA_CM_EVENT_REJECTED. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/iser: Return error code when PDUs may not be sentErez Zilber2007-01-072-16/+14
| | | | | | | | | iSER limits the number of outstanding PDUs to send. When this threshold is reached, it should return an error code (-ENOBUFS) instead of setting the suspend_tx bit (which should be used only by libiscsi). Signed-off-by: Erez Zilber <erezz@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mthca: Fix off-by-one in FMR handling on memfreeMichael S. Tsirkin2007-01-051-1/+1
| | | | | | | | | | | | | | | | | | | mthca_table_find() will return the wrong address when the table entry being searched for is exactly at the beginning of a sglist entry (other than the first), because it uses >= when it should use >. Example: assume we have 2 entries in scatterlist, 4K each, offset is 4K. The current code will return first entry + 4K when we really want the second entry. In particular this means mapping an FMR on a memfree HCA may end up writing the page table into the wrong place, leading to memory corruption and also causing the HCA to use an incorrect address translation table. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* [PATCH] IB/mthca: Fix FMR breakage caused by kmemdup() conversionMichael S. Tsirkin2006-12-301-1/+2
| | | | | | | | | | | | | Commit bed8bdfd ("IB: kmemdup() cleanup") introduced one bad conversion to kmemdup() in mthca_alloc_fmr(), where the structure allocated and the structure copied are not the same size. Revert this back to the original kmalloc()/memcpy() code. Reported-by: Dotan Barak <dotanb@mellanox.co.il>. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <roland@digitalvampire.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* IB/mthca: Use DEFINE_MUTEX() instead of mutex_init()Roland Dreier2006-12-161-3/+1
| | | | | | | | | mthca_device_mutex() can be initialized automatically with DEFINE_MUTEX() rather than explicitly calling mutex_init(). This saves a bit of text and shrinks the source by a line, so we may as well do it.... Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mthca: Add HCA profile module parametersLeonid Arsh2006-12-161-14/+97
| | | | | | | | | Add module parameters that enable settting some of the HCA profile values, such as the number of QPs, CQs, etc. Signed-off-by: Leonid Arsh <leonida@voltaire.com> Signed-off-by: Moni Shoua <monis@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/srp: Fix FMR mapping for 32-bit kernels and addresses above 4GRoland Dreier2006-12-152-2/+2
| | | | | | | | | | | | | | | | struct srp_device.fmr_page_mask was unsigned long, which means that the top part of addresses above 4G was being chopped off on 32-bit architectures. Of course nothing good happens when data from SRP targets is DMAed to the wrong place. Fix this by changing fmr_page_mask to u64, to match the addresses actually used by IB devices. Thanks to Brian Cain <Brian.Cain@ge.com> and David McMillen <davem@systemfabricworks.com> for help diagnosing the bug and testing the fix. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IPoIB: Make sure struct ipoib_neigh.queue is always initializedRoland Dreier2006-12-121-2/+1
| | | | | | | | | | | | | Move the initialization of ipoib_neigh's skb_queue into ipoib_neigh_alloc(), since commit 2745b5b7 ("IPoIB: Fix skb leak when freeing neighbour") will make iterate over the skb_queue to free any packets left over when freeing the ipoib_neigh structure. This fixes a crash when freeing ipoib_neigh structures allocated in ipoib_mcast_send(), which otherwise don't have their skb_queue initialized. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/iser: Use the new verbs DMA mapping functionsRalph Campbell2006-12-122-63/+61
| | | | | | | | Convert iSER to use the new verbs DMA mapping functions for kernel verbs consumers. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/srp: Use new verbs IB DMA mapping functionsRalph Campbell2006-12-122-34/+49
| | | | | | | | Convert SRP to use the new verbs DMA mapping functions for kernel verbs consumers. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IPoIB: Use the new verbs DMA mapping functionsRalph Campbell2006-12-122-41/+38
| | | | | | | | Convert IPoIB to use the new DMA mapping functions for kernel verbs consumers. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/core: Use the new verbs DMA mapping functionsRalph Campbell2006-12-123-55/+53
| | | | | | | | Convert code in core/ to use the new DMA mapping functions for kernel verbs consumers. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Implement new verbs DMA mapping functionsRalph Campbell2006-12-126-7/+201
| | | | | | | | | This patch implements the interposing DMA mapping functions to allow support for IOMMUs and remove the dependence on phys_to_virt() and bus_to_virt(). Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/cma: Export rdma cm interface to userspaceSean Hefty2006-12-123-3/+882
| | | | | | | Export the rdma cm interfaces to userspace via a misc device. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/cma: Add support for RDMA_PS_UDPSean Hefty2006-12-121-16/+204
| | | | | | | | | | Allow the use of UD QPs through the rdma_cm, in order to provide address translation services for resolving IB addresses for datagram messages using SIDR. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/cma: Allow early transition to RTS to handle lost CM messagesSean Hefty2006-12-122-24/+48
| | | | | | | | | | | | | | During connection establishment, the passive side of a connection can receive messages from the active side before the connection event has been delivered to the user. Allow the passive side to send messages in response to received data before the event is delivered. To handle the case where the connection messages are lost, a new rdma_notify() function is added that users may invoke to force a connection into the established state. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 13:16:41 +0100