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path: root/drivers/infiniband/hw/ipath/ipath_verbs.c
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* IB/ipath: Fix IB_EVENT_PORT_ERR eventRalph Campbell2007-10-091-2/+10
| | | | | | | | | | The link state event calls were being generated when the SM told the SMA to change link states. This works for IB_EVENT_PORT_ACTIVE but not if the link goes down and stays down. The fix is to generate event calls from the interrupt handler when the HW link state changes. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Remove duplicate copy of LMCRalph Campbell2007-10-091-2/+2
| | | | | | | | The LMC value was being saved by the SMA in two places. This patch cleans it up so only one copy is kept. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Generate flush CQE when QP is in error stateRalph Campbell2007-10-091-2/+20
| | | | | | | | | Follow the IB spec. (C10-96) for post send which states that a flushed completion event should be generated for work requests posted when a QP is in the error state. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Change UD to queue work requests like RC & UCRalph Campbell2007-10-091-80/+161
| | | | | | | | | | The code to post UD sends tried to process work requests at the time ib_post_send() is called without using a WQE queue. This was fine as long as HW resources were available for sending a packet. This patch changes UD to be handled more like RC and UC and shares more code. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Performance optimization for CPU differencesRalph Campbell2007-10-091-25/+37
| | | | | | | | | Different processors have different ordering restrictions for write combining. By taking advantage of this, we can eliminate some write barriers when writing to the send buffers. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Make a few functions staticRoland Dreier2007-07-171-1/+1
| | | | | | | | | | | | | | | | | Make some functions that are only used in a single .c file static. In addition to being a cleanup, this shrinks the generated code. On x86_64: add/remove: 1/3 grow/shrink: 2/1 up/down: 4777/-4956 (-179) function old new delta handle_errors - 3994 +3994 __verbs_timer 42 710 +668 ipath_do_ruc_send 2131 2246 +115 ipath_no_bufs_available 136 - -136 ipath_disarm_senderrbufs 639 - -639 ipath_ib_timer 658 - -658 ipath_intr 5878 2355 -3523 Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Remove support for preproduction HTX InfiniPath cardsRalph Campbell2007-07-091-7/+0
| | | | | | | Clean up some code by removing support for some older pre-production HTX InfiniPath cards. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
* IB/ipath: Add barrier before updating WC head in shared memoryRalph Campbell2007-07-091-0/+2
| | | | | | | | | Add a barrier to make sure the CPU doesn't reorder writes to memory, since user programs can be polling on the head index update and the entry should be written before that. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Update copyright datesJohn Gregor2007-07-091-1/+1
| | | | | | | | Now that it's June, it's about time to update the copyright notices of files that have changed. Signed-off-by: John Gregor <john.gregor@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Fix possible data corruption if multiple SGEs used for receiveRalph Campbell2007-07-091-2/+6
| | | | | | | | | | | | The code to copy data from the receive queue buffers to the IB SGEs doesn't check the SGE length, only the memory region/page length when copying data. This could overwrite parts of the user's memory that were not intended to be written. It can only happen if multiple SGEs are used to describe a receive buffer which almost never happens in practice. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Wait for PIO available interruptRalph Campbell2007-07-091-0/+1
| | | | | | | | | | The send function is called when posting new send work requests. There is no point in trying to send a packet if the QP is already waiting for a HW send buffer so don't clear the busy bit until the buffer available interrupt happens. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Fill in some missing FMR-related fields in query_deviceRobert Walsh2007-07-091-0/+2
| | | | | | | | In ipath_query_device(), some of the struct ib_device_attr fields were not being initialized. Signed-off-by: Robert Walsh <robert.walsh@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Fix maximum MTU reportingRobert Walsh2007-07-091-1/+6
| | | | | | | | | Although our chip supports 4K MTUs, our driver doesn't yet support this feature, so limit the maximum MTU to 2K until we get support for 4K MTUs implemented. Signed-off-by: Robert Walsh <robert.walsh@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Shadow the gpio_mask registerArthur Jones2007-05-141-6/+6
| | | | | | | | | | | | | | | | | | Once upon a time, GPIO interrupts were rare. But then a chip bug in the waldo series forced the use of a GPIO interrupt to signal packet reception. This greatly increased the frequency of GPIO interrupts which have the gpio_mask bits set on the waldo chips. Other bits in the gpio_status register are used for I2C clock and data lines, these bits are usually on. An "unlikely" annotation leftover from the old days was improperly applied to these bits, and an unnecessary chip mmio read was being accessed in the interrupt fast path on waldo. Remove the stagnant unlikely annotation in the interrupt handler and keep a shadow copy of the gpio_mask register to avoid the slow mmio read when testing for interruptable GPIO bits. Signed-off-by: Arthur Jones <arthur.jones@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB: Add CQ comp_vector supportMichael S. Tsirkin2007-05-061-0/+1
| | | | | | | | | | | | | | | | | | | | | Add a num_comp_vectors member to struct ib_device and extend ib_create_cq() to pass in a comp_vector parameter -- this parallels the userspace libibverbs API. Update all hardware drivers to set num_comp_vectors to 1 and have all ULPs pass 0 for the comp_vector value. Pass the value of num_comp_vectors to userspace rather than hard-coding a value of 1. We want multiple CQ event vector support (via MSI-X or similar for adapters that can generate multiple interrupts), but it's not clear how many vectors we want, or how we want to deal with policy issues such as how to decide which vector to use or how to set up interrupt affinity. This patch is useful for experimenting, since no core changes will be necessary when updating a driver to support multiple vectors, and we know that we want to make at least these changes anyway. Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Don't corrupt pending mmap list when unmapped objects are freedRobert Walsh2007-04-301-0/+3
| | | | | | | | | | | | Fix the pending mmap code so it doesn't corrupt the list of pending mmaps and crash the machine when pending mmaps are destroyed without first being mapped. Also, remove an unused variable, and use standard kernel lists instead of our own homebrewed linked list implementation to keep the pending mmap list. Signed-off-by: Robert Walsh <robert.walsh@qlogic.com> Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB: Set class_dev->dev in core for nice device symlinkJoachim Fenkes2007-04-241-1/+0
| | | | | | | | | | | All RDMA drivers except ehca set class_dev->dev to their dma_device value (ehca leaves this unset). dma_device is the only value that makes any sense, so move this assignment to core/sysfs.c. This reduce the duplicated code in the rest of the drivers and gives ehca a nice /sys/class/infiniband/ehcaX/device symlink. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Discard multicast packets without a GRHBryan O'Sullivan2007-04-181-2/+5
| | | | | | | | | This patch fixes a bug where multicast packets without a GRH were not being dropped as per the IB spec. 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>
* IB/ipath: Support larger IB_QP_MAX_DEST_RD_ATOMIC and IB_QP_MAX_QP_RD_ATOMICRalph Campbell2007-04-181-4/+3
| | | | | | | | 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>
* IB/ipath: Implement new verbs DMA mapping functionsRalph Campbell2006-12-121-0/+1
| | | | | | | | | 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>
* IB/ipath: Fix typo in pma_counter_select subscriptRoland Dreier2006-11-291-1/+1
| | | | | | The array has only 5 entries, so [5] should have been [4]. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* [PATCH] namespaces: utsname: use init_utsname when appropriateSerge E. Hallyn2006-10-021-1/+1
| | | | | | | | | | | | | | | | | | | | | In some places, particularly drivers and __init code, the init utsns is the appropriate one to use. This patch replaces those with a the init_utsname helper. Changes: Removed several uses of init_utsname(). Hope I picked all the right ones in net/ipv4/ipconfig.c. These are now changed to utsname() (the per-process namespace utsname) in the previous patch (2/7) [akpm@osdl.org: CIFS fix] Signed-off-by: Serge E. Hallyn <serue@us.ibm.com> Cc: Kirill Korotaev <dev@openvz.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Herbert Poetzl <herbert@13thfloor.at> Cc: Andrey Savochkin <saw@sw.ru> Cc: Serge Hallyn <serue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* IB/ipath: Fix lockdep error upon "ifconfig ibN down"Bryan O'Sullivan2006-09-281-5/+7
| | | | | Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Support revision 2 InfiniPath PCIE devicesBryan O'Sullivan2006-09-281-7/+21
| | | | | | | This also entailed a little GPIO-interrupt general cleanup. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Limit # of packets sent without an ACK receivedBryan O'Sullivan2006-09-281-1/+2
| | | | | | | | The sender requests an ACK every 1/2 MB to avoid retransmit timeouts that were causing MVAPICH mod_bw to fail after a predictable number of sends. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA: iWARP Core Changes.Tom Tucker2006-09-221-1/+1
| | | | | | | | | | | | 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>
* IB/ipath: allow SMA to be disabledBryan O'Sullivan2006-09-221-0/+7
| | | | | | | This is useful for testing purposes. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: put a limit on the number of QPs that can be createdBryan O'Sullivan2006-09-221-1/+6
| | | | | Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: remove stale references to userspace SMABryan O'Sullivan2006-09-221-1/+1
| | | | | | | | | When we first submitted a userspace subnet management agent, it was rejected, so we left it out of the final driver submission. This patch removes a number of vestigial references to it. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: simplify debugging code after ipath_core and ib_ipath mergerBryan O'Sullivan2006-09-221-14/+5
| | | | | Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: simplify layering codeBryan O'Sullivan2006-09-221-39/+486
| | | | | | | | | A lot of ipath layer code was only called in one place. Now that the ipath_core and ib_ipath drivers are merged, it's more sensible to simply inline the simple stuff that the layer code was doing. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: merge ipath_core and ib_ipath driversBryan O'Sullivan2006-09-221-31/+14
| | | | | | | | There is little point in keeping the two drivers separate, so we are merging them. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: lock resource limit counters correctlyBryan O'Sullivan2006-09-221-8/+26
| | | | | Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Performance improvements via mmap of queuesRalph Campbell2006-09-221-38/+12
| | | | | | | | | | Improve performance of userspace post receive, post SRQ receive, and poll CQ operations for ipath by allowing userspace to directly mmap() receive queues and completion queues. This eliminates the copying between userspace and the kernel in the data path. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: ipath_skip_sge() can break if num_sge > 1Ralph Campbell2006-07-241-4/+0
| | | | | | | | | | | ipath_skip_sge() doesn't exactly duplicate the side effects of ipath_copy_sge() if num_sge > 1 since it doesn't decrement ss->num_sge. This could result in the sg_list being accessed out of bounds. Since ipath_skip_sge() is almost always called with num_sge == 1, the original "optimization" is almost never used. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Fix ib_ipath driver to work with SRPRalph Campbell2006-07-241-0/+1
| | | | | | | | | | | I am still working on a proposal to remove the phys_to_virt() calls in the ib_ipath driver. In the mean time, this patch allows SRP to work by fixing the R_Key check and conversion from IB address to kernel virtual address. It also returns the correct page size for FMRs. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* [PATCH] IB/ipath: namespace cleanup: replace ips with ipathBryan O'Sullivan2006-07-011-10/+10
| | | | | | | | | | | | | | Remove ips namespace from infinipath drivers. This renames ips_common.h to ipath_common.h. Definitions, data structures, etc. that were not used by kernel modules have moved to user-only headers. All names including ips have been renamed to ipath. Some names have had an ipath prefix added. Signed-off-by: Christian Bell <christian.bell@qlogic.com> Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Cc: "Michael S. Tsirkin" <mst@mellanox.co.il> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/ipath: fixes to performance get counters for IB complianceBryan O'Sullivan2006-07-011-0/+20
| | | | | | | | | | | | | This patch fixes some problems uncovered during IB compliance testing to return the right values for error counters returned by the Performance Get Counters packet. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Cc: "Michael S. Tsirkin" <mst@mellanox.co.il> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/ipath: don't confuse the max message size with the MTUBryan O'Sullivan2006-07-011-1/+1
| | | | | | | | | Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Cc: "Michael S. Tsirkin" <mst@mellanox.co.il> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/ipath: enforce device resource limitsBryan O'Sullivan2006-07-011-13/+96
| | | | | | | | | | | | | These limits are somewhat artificial in that we don't actually have any device limits. However, the verbs layer expects that such limits exist and are enforced, so we make up arbitrary (but sensible) limits. Signed-off-by: Robert Walsh <robert.walsh@qlogic.com> Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Cc: "Michael S. Tsirkin" <mst@mellanox.co.il> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/ipath: report correct device identification information in /sysBryan O'Sullivan2006-07-011-10/+4
| | | | | | | | | Signed-off-by: Robert Walsh <robert.walsh@qlogic.com> Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Cc: "Michael S. Tsirkin" <mst@mellanox.co.il> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/ipath: don't allow resources to be created with illegal valuesBryan O'Sullivan2006-07-011-0/+11
| | | | | | | | | Signed-off-by: Robert Walsh <robert.walsh@qlogic.com> Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Cc: "Michael S. Tsirkin" <mst@mellanox.co.il> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/ipath: share more common code between RC and UC protocolsBryan O'Sullivan2006-07-011-1/+1
| | | | | | | | | Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Cc: "Michael S. Tsirkin" <mst@mellanox.co.il> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/ipath: update copyrights and other strings to reflect new company ↵Bryan O'Sullivan2006-07-011-2/+3
| | | | | | | | | | name Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Cc: "Michael S. Tsirkin" <mst@mellanox.co.il> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/ipath: name zero counter offsets so it's clear they aren't countersBryan O'Sullivan2006-07-011-1/+1
| | | | | | | | | Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Cc: "Michael S. Tsirkin" <mst@mellanox.co.il> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* IB/ipath: register as IB device ownerBryan O'Sullivan2006-05-231-0/+1
| | | | | | | This fixes an oops. Signed-off-by: Bryan O'Sullivan <bos@pathscale.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: replace uses of LIST_POISONBryan O'Sullivan2006-05-231-3/+3
| | | | | | | Per Andrew's request. Signed-off-by: Bryan O'Sullivan <bos@pathscale.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: simplify IB timer usageBryan O'Sullivan2006-05-011-29/+10
| | | | | Signed-off-by: Bryan O'Sullivan <bos@pathscale.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Fix whitespaceRoland Dreier2006-04-191-55/+55
| | | | Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Make more names staticRoland Dreier2006-04-191-4/+4
| | | | | | Make symbols that are only used in a single source file static. Signed-off-by: Roland Dreier <rolandd@cisco.com>
generated by cgit v1.1 at 2024-12-27 07:49:49 +0000