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path: root/drivers/infiniband/hw
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2007-04-18IB/ipath: Fix calculation for number of kernel PIO buffersBryan O'Sullivan
If the module parameter "kpiobufs" is set too high, the calculation to reset it to a sane value was incorrect. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-04-18IB/ipath: Remove unused ipath_read_kreg64_port()Bryan O'Sullivan
Signed-off-by: Dave Olson <dave.olson@qlogic.com> Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-04-18IB/ipath: Fix RDMA reads of length zero and error handlingRalph Campbell
Fix RDMA read response length checking for RDMA_READ_RESPONSE_ONLY to allow a zero length response. RDMA read responses which don't match the expected length or occur in response to some other operation should generate a completion queue error (see table 56, ch. 9.9.2.3 in the IB spec). Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-04-18IB/ipath: Allow receive ports mapped into userspace to be sharedMark Debbage
Improve port-sharing performance by allowing any process to receive packets from the shared hardware port under a spin lock for mutual exclusion. Previously, one process was nominated as the master and that process was responsible for receiving all packets from the shared hardware port and either consuming them or forwarding them to their destination. This led to starvation problems for other processes when the master process was busy in computation phases. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-04-18IB/ipath: Fix port sharing on powerpcRalph Campbell
The port sharing feature mixed kernel virtual addresses as well as physical addresses for the offset used to describe the mmap address to map the InfiniPath hardware into user space. This had a conflict on powerpc. The new scheme converts it to a physical address so it doesn't conflict with chip addresses and yet still fits in 40/44 bits so it isn't truncated by 32-bit applications calling mmap64(). Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-04-18IB/ipath: Fix CQ flushing when QP is modified to error stateBryan O'Sullivan
If a receive work request has been removed from the queue but has not had a CQ entry generated for it and the QP is modified to the error state, the completion entry generated is incorrect. This patch fixes the problem. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-04-18IB/ipath: Fix bad argument to clear_bit()Bryan O'Sullivan
Code was converted from a &= ~mask to clear_bit, but the bit was left shifted instead of being used directly, so we were either trashing memory several pages away, or sometimes taking a kernel page fault on an invalid page. Signed-off-by: Dave Olson <dave.olson@qlogic.com> Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-04-18IB/ipath: Change packet problems vs chip errors handling and reportingBryan O'Sullivan
Some types of packet errors are moderately common with longer IB cables and large clusters, and are not reported with prints by other IB HCA drivers. This suppresses those messages unless the new __IPATH_ERRPKTDBG bit is set in ipath_debug. Reporting of temporarily disabled frequent error interrupts was also made clearer We also distinguish between chip errors, and bad packets sent or received in the wording of the messages. Signed-off-by: Dave Olson <dave.olson@qlogic.com> Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-04-18IB/ipath: Fix PSN update for RC retriesRalph Campbell
This patch fixes a number of bugs with updating the PSN for retries of RC requests. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-04-18IB/ipath: Fix QP error completion queue entriesRalph Campbell
When switching to the QP error state, the completion queue entries (error or flush) were not being generated correctly. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-04-18IB/ipath: Fix up some debug messagesBryan O'Sullivan
ipath_dbg doesn't need the same prefixes that printk does. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-04-18IB/ipath: Support larger IB_QP_MAX_DEST_RD_ATOMIC and IB_QP_MAX_QP_RD_ATOMICRalph Campbell
This patch adds support for multiple RDMA reads and atomics to be sent before an ACK is required to be seen by the requester. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-04-18IB/ipath: NMI cpu lockup if local loopback usedRalph Campbell
If a post send is done in loopback and there is no receive queue entry, the sending QP is put on a timeout list for a while so the receiver has a chance to post a receive buffer. If the another post send is done, the code incorrectly tried to put the QP on the timeout list again an corrupted the timeout list. This eventually leads to a spin lock deadlock NMI due to the timer function looping forever with the lock held. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-04-18IB/ipath: Fix SRQ limit event causing dropped CQ entryRalph Campbell
A silly programming error causes a CQ entry to not be generated if a SRQ limit event is generated. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-04-18IB/ipath: Don't initialize port memory for subportsRalph Campbell
A recent change was made to allocate memory for a port after CPU affinity is set. That change didn't account for subports and was trying to allocate memory for the port twice. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-04-18IB/ipath: Definitions of two RXE parity err bits were reversedBryan O'Sullivan
The chip documentation on the expected TID vs eager TID parity error bits was reversed from what was implemented in the RTL, for both chips. This corrects the definitions. Signed-off-by: Dave Olson <dave.olson@qlogic.com> Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-04-18IB/ipath: Fix user memory region creation when IOMMU presentBryan O'Sullivan
The loop which initializes the user memory region from an array of pages was using the wrong limit for the array. This worked OK when dma_map_sg() returned the same number as the number of pages. This patch fixes the problem. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-04-18IB/ipath: Add ability to set and clear IB local loopbackBryan O'Sullivan
This is a sticky state. It is useful for diagnosing problems with boards versus cable/switch problems. Signed-off-by: Dave Olson <dave.olson@qlogic.com> Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-04-16IB/mthca: Fix data corruption after FMR unmap on SinaiMichael S. Tsirkin
In mthca_arbel_fmr_unmap(), the high bits of the key are masked off. This gets rid of the effect of adjust_key(), which makes sure that bits 3 and 23 of the key are equal when the Sinai throughput optimization is enabled, and so it may happen that an FMR will end up with bits 3 and 23 in the key being different. This causes data corruption, because when enabling the throughput optimization, the driver promises the HCA firmware that bits 3 and 23 of all memory keys will always be equal. Fix by re-applying adjust_key() after masking the key. Thanks to Or Gerlitz for reproducing the problem, and Ariel Shahar for help in debug. Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-04-13[POWERPC] Rename get_property to of_get_property: driversStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-04-13[POWERPC] get_property returns constStephen Rothwell
This just tidies up some of the remains. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-04-12RDMA/cxgb3: Add set_tcb_rpl_handlerSteve Wise
As of commit 6cdbd77e ("cxgb3 - missing CPL hanler and register setting."), the cxgb3 ethernet NIC driver no longer handles SET_TCB replies, so we need to do it in the iWARP driver. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Acked-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-26IB/mthca: Fix thinko in init_mr_table()Michael S. Tsirkin
Commit c20e20ab ("IB/mthca: Merge MR and FMR space on 64-bit systems") swapped the number of MTTs and MPTs when initializing the MR table. As a result, we get a kernel oops when the number of MTT segments allocated exceeds 0x20000. Noted by Troy Benjegerdes <troy@scl.ameslab.gov>, and reproduced by Dotan Barak <dotanb@mellanox.co.il>. This fixes https://bugs.openfabrics.org/show_bug.cgi?id=490 Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-26RDMA/cxgb3: Fix resource leak in cxio_hal_init_ctrl_qp()Steve Wise
This was spotted by the Coverity checker (CID 1554). Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-22IB/ehca: Make scaling code work without CPU hotplugJoachim Fenkes
eHCA scaling code must not depend on register_cpu_notifier() if CONFIG_HOTPLUG_CPU is not set, so put all related code into #ifdefs. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-22RDMA/cxgb3: Handle build_phys_page_list() failure in iwch_reregister_phys_mem()Steve Wise
Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-22IB/ipath: Check return value of lookup_one_lenBryan O'Sullivan
This fixes kernel.org bug 8003. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-14[PATCH] fix ipath_dma_free_coherent() prototypeAl Viro
method gets u64, not dma_addr_t Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-06RDMA/cxgb3: Fix MR permission problemsSteve Wise
Fix memory region permission problems: - remove useless and redundant iwch_mem_perms enum. - create ib_to_tpt_access_rights() for mapping ib access rights to T3 TPT permissions. - create ib_to_mwbind_access_rights() for mapping ib access rights to T3 MWBIND WR permissions. - fix up the mem reg code to utilize the new functions. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-06RDMA/cxgb3: Don't reuse skbs that are non-linear or clonedSteve Wise
Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-06RDMA/cxgb3: Squelch logging AE errorsSteve Wise
Only print one AE error for a given connection in the kernel log. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-06RDMA/cxgb3: Stop EP timer when MPA exchange is aborted by peerSteve Wise
Stop the endpoint timer when the MPA exchange is aborted by the peer. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-06RDMA/cxgb3: Move QP to error on destroy if the state is IDLESteve Wise
Change iwch_destroy_qp() to always move the QP to ERROR and let iwch_modify_qp() decide what to do. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-06RDMA/cxgb3: Fixes for "normal close" failuresSteve Wise
Fixes for "normal close" failures: - Start normal close timer when moving to CLOSING state. - Handle ABORTING state in close_con_rpl(). - Stop timer correctly on abort during a normal close. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-06RDMA/cxgb3: Fix build on sparc64David Miller
cxgb3 uses dma_alloc_coherent() et al. thus needs linux/dma-mapping.h include in order to build reliably. Noticed on sparc64. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-06RDMA/cxgb3: Don't use mm after it's freed in iwch_mmap()Steve Wise
Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-06RDMA/cxgb3: Start ep timer on a MPA rejectSteve Wise
If the consumer rejects the connection we end up under-referencing the endpoint structure. The fix is to call iwch_ep_disconnect() instead of the low level disconnect functions so that the endpoint close timer is started correctly. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-01IB/mthca: Fix error path in mthca_alloc_memfree()Roland Dreier
The garbled logic in mthca_alloc_memfree() causes it to return 0, even if it fails to allocate all doorbell records. Fix it to return -ENOMEM when it fails. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-03-01IB/ehca: Fix sync between completion handler and destroy cqHoang-Nam Nguyen
This patch fixes two issues reported by Roland Dreier and Christoph Hellwig: - Mismatched sync/locking between completion handler and destroy cq We introduced a counter nr_events per cq to track number of irq events seen. This counter is incremented when an event queue entry is seen and decremented after completion handler has been called regardless if scaling code is active or not. Note that nr_callbacks tracks number of events assigned to a cpu and both counters can potentially diverge. The sync between running completion handler and destroy cq is done by using the global spin lock ehca_cq_idr_lock. - Replace yield by wait_event on the counter above to become zero. Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-02-23RDMA/cxgb3: Stop the EP Timer on BAD CLOSESteve Wise
Stop the ep timer in ec_status() if the status indicates a bad close. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-02-23RDMA/cxgb3: cleanupsAdrian Bunk
- don't mark static functions in C files as inline - gcc should know best whether inlining makes sense - never compile the unused cxio_dbg.c - make the following needlessly global functions static: - cxio_hal.c: cxio_hal_clear_qp_ctx() - iwch_provider.c: iwch_get_qp() - remove the following unused global functions: - cxio_hal.c: cxio_allocate_stag() - cxio_resource.: cxio_hal_get_rhdl() - cxio_resource.: cxio_hal_put_rhdl() Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-02-20IB/mthca: Make 2 functions staticAdrian Bunk
This patch makes the needlessly global functions mthca_tavor_write_mtt_seg() and mthca_arbel_write_mtt_seg() static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-02-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivialLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: (25 commits) Documentation/kernel-docs.txt update. arch/cris: typo in KERN_INFO Storage class should be before const qualifier kernel/printk.c: comment fix update I/O sched Kconfig help texts - CFQ is now default, not AS. Remove duplicate listing of Cris arch from README kbuild: more doc. cleanups doc: make doc. for maxcpus= more visible drivers/net/eexpress.c: remove duplicate comment add a help text for BLK_DEV_GENERIC correct a dead URL in the IP_MULTICAST help text fix the BAYCOM_SER_HDX help text fix SCSI_SCAN_ASYNC help text trivial documentation patch for platform.txt Fix typos concerning hierarchy Fix comment typo "spin_lock_irqrestore". Fix misspellings of "agressive". drivers/scsi/a100u2w.c: trivial typo patch Correct trivial typo in log2.h. Remove useless FIND_FIRST_BIT() macro from cardbus.c. ...
2007-02-17Various typo fixes.Robert P. J. Day
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>
2007-02-16IB/ipath: Make ipath_map_sg() staticRoland Dreier
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-02-16RDMA/cxgb3: Remove Open Grid Computing copyrights in iw_cxgb3 driverSteve Wise
Remove the Open Grid Computing copyright. It shouldn't be there. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-02-16RDMA/cxgb3: Fail posts synchronously when in TERMINATE stateSteve Wise
For T3B devices, mark user QP in error once we transition to TERMINATE. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-02-16IB/ehca: Change query_port() to return LINK_UP instead UNKNOWNHoang-Nam Nguyen
Set the port phys state as returned from ehca_query_port() to LINK_UP. ehca actually represents a logical HCA, whose phys/link state always is LINK_UP. Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-02-16IB/ehca: Allow en/disabling scaling code via module parameterHoang-Nam Nguyen
Allow users to en/disable scaling code when loading ib_ehca module, rather than requiring the module to be rebuilt to change the setting. Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-02-16IB/ehca: Fix race condition/locking issues in scaling codeHoang-Nam Nguyen
Fix a race condition in find_next_cpu_online() and some other locking issues in ehca scaling code. Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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