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path: root/drivers/infiniband/core/mad_priv.h (follow)
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2016-01-19IB/mad: use CQ abstractionChristoph Hellwig1-1/+1
Remove the local workqueue to process mad completions and use the CQ API instead. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hal Rosenstock <hal@mellanox.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-08IB: split struct ib_send_wrChristoph Hellwig1-1/+1
This patch split up struct ib_send_wr so that all non-trivial verbs use their own structure which embedds struct ib_send_wr. This dramaticly shrinks the size of a WR for most common operations: sizeof(struct ib_send_wr) (old): 96 sizeof(struct ib_send_wr): 48 sizeof(struct ib_rdma_wr): 64 sizeof(struct ib_atomic_wr): 96 sizeof(struct ib_ud_wr): 88 sizeof(struct ib_fast_reg_wr): 88 sizeof(struct ib_bind_mw_wr): 96 sizeof(struct ib_sig_handover_wr): 80 And with Sagi's pending MR rework the fast registration WR will also be down to a reasonable size: sizeof(struct ib_fastreg_wr): 64 Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com> [srp, srpt] Reviewed-by: Chuck Lever <chuck.lever@oracle.com> [sunrpc] Tested-by: Haggai Eran <haggaie@mellanox.com> Tested-by: Sagi Grimberg <sagig@mellanox.com> Tested-by: Steve Wise <swise@opengridcomputing.com>
2015-08-30IB/mad: Remove ib_get_dma_mr callsJason Gunthorpe1-1/+0
The pd now has a local_dma_lkey member which completely replaces ib_get_dma_mr, use it instead. Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-06-12IB/mad: Add final OPA MAD processingIra Weiny1-0/+1
For devices which support OPA MADs 1) Use previously defined SMP support functions. 2) Pass correct base version to ib_create_send_mad when processing OPA MADs. 3) Process out_mad_key_index returned by agents for a response. This is necessary because OPA SMP packets must carry a valid pkey. 4) Carry the correct segment size (OPA vs IBTA) of RMPP messages within ib_mad_recv_wc. 5) Handle variable length OPA MADs by: * Adjusting the 'fake' WC for locally routed SMP's to represent the proper incoming byte_len * out_mad_size is used from the local HCA agents 1) when sending agent responses on the wire 2) when passing responses through the local_completions function NOTE: wc.byte_len includes the GRH length and therefore is different from the in_mad_size specified to the local HCA agents. out_mad_size should _not_ include the GRH length as it is added Signed-off-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-06-12IB/mad: Add partial Intel OPA MAD supportIra Weiny1-0/+1
Add OPA SMP processing functionality. Define the new OPA SMP format, create support functions for this format using the previously defined helper functions as appropriate. These functions are defined in this patch and used in the final OPA MAD support patch. Signed-off-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-06-12IB/mad: Add partial Intel OPA MAD supportIra Weiny1-1/+1
This patch is the first of 3 which adds processing of OPA MADs 1) Add Intel Omni-Path Architecture defines 2) Increase max management version to accommodate OPA 3) update ib_create_send_mad If the device supports OPA MADs and the MAD being sent is the OPA base version alter the MAD size and sg lengths as appropriate Signed-off-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-06-12IB/mad: Convert allocations from kmem_cache to kzallocIra Weiny1-5/+2
This patch implements allocating alternate receive MAD buffers within the MAD stack. Support for OPA to send/recv variable sized MADs is implemented later. 1) Convert MAD allocations from kmem_cache to kzalloc kzalloc is more flexible to support devices with different sized MADs and research and testing showed that the current use of kmem_cache does not provide performance benefits over kzalloc. 2) Change struct ib_mad_private to use a flex array for the mad data 3) Allocate ib_mad_private based on the size specified by devices in rdma_max_mad_size. 4) Carry the allocated size in ib_mad_private to be used when processing ib_mad_private objects. 5) Alter DMA mappings based on the mad_size of ib_mad_private. 6) Replace the use of sizeof and static defines as appropriate 7) Add appropriate casts for the MAD data when calling processing functions. Signed-off-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-05-20IB/mad: Add const qualifiers to query only functionsIra Weiny1-2/+2
The following functions only need read access to the data passed to them. ib_mad_kernel_rmpp_agent is_rmpp_data_mad rcv_has_same_gid ib_find_send_mad Clarify with const specifiers Signed-off-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2014-08-10IB/mad: Update module to [pr|dev]_* style print messagesIra Weiny1-3/+0
Use dev_* style print when struct device is available. Also combine previously line broken user-visible strings as per Documentation/CodingStyle: "However, never break user-visible strings such as printk messages, because that breaks the ability to grep for them." Signed-off-by: Ira Weiny <ira.weiny@intel.com> [ Remove PFX so the patch actually builds. - Roland ] Signed-off-by: Roland Dreier <roland@purestorage.com>
2009-09-07IB/mad: Allow tuning of QP0 and QP1 sizesHal Rosenstock1-0/+3
MADs are UD and can be dropped if there are no receives posted, so allow receive queue size to be set with a module parameter in case the queue needs to be lengthened. Send side tuning is done for symmetry with receive. Signed-off-by: Hal Rosenstock <hal.rosenstock@gmail.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-07-14RDMA: Remove subversion $Id tagsRoland Dreier1-2/+0
They don't get updated by git and so they're worse than useless. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25IB/mad: Report number of times a mad was retriedSean Hefty1-1/+2
To allow ULPs to tune timeout values and capture retry statistics, report the number of times that a mad send operation was retried. For RMPP mads, report the total number of times that the any portion (send window) of the send operation was retried. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-05-02PCI: Cleanup the includes of <linux/pci.h>Jean Delvare1-1/+0
I noticed that many source files include <linux/pci.h> while they do not appear to need it. Here is an attempt to clean it all up. In order to find all possibly affected files, I searched for all files including <linux/pci.h> but without any other occurence of "pci" or "PCI". I removed the include statement from all of these, then I compiled an allmodconfig kernel on both i386 and x86_64 and fixed the false positives manually. My tests covered 66% of the affected files, so there could be false positives remaining. Untested files are: arch/alpha/kernel/err_common.c arch/alpha/kernel/err_ev6.c arch/alpha/kernel/err_ev7.c arch/ia64/sn/kernel/huberror.c arch/ia64/sn/kernel/xpnet.c arch/m68knommu/kernel/dma.c arch/mips/lib/iomap.c arch/powerpc/platforms/pseries/ras.c arch/ppc/8260_io/enet.c arch/ppc/8260_io/fcc_enet.c arch/ppc/8xx_io/enet.c arch/ppc/syslib/ppc4xx_sgdma.c arch/sh64/mach-cayman/iomap.c arch/xtensa/kernel/xtensa_ksyms.c arch/xtensa/platform-iss/setup.c drivers/i2c/busses/i2c-at91.c drivers/i2c/busses/i2c-mpc.c drivers/media/video/saa711x.c drivers/misc/hdpuftrs/hdpu_cpustate.c drivers/misc/hdpuftrs/hdpu_nexus.c drivers/net/au1000_eth.c drivers/net/fec_8xx/fec_main.c drivers/net/fec_8xx/fec_mii.c drivers/net/fs_enet/fs_enet-main.c drivers/net/fs_enet/mac-fcc.c drivers/net/fs_enet/mac-fec.c drivers/net/fs_enet/mac-scc.c drivers/net/fs_enet/mii-bitbang.c drivers/net/fs_enet/mii-fec.c drivers/net/ibm_emac/ibm_emac_core.c drivers/net/lasi_82596.c drivers/parisc/hppb.c drivers/sbus/sbus.c drivers/video/g364fb.c drivers/video/platinumfb.c drivers/video/stifb.c drivers/video/valkyriefb.c include/asm-arm/arch-ixp4xx/dma.h sound/oss/au1550_ac97.c I would welcome test reports for these files. I am fine with removing the untested files from the patch if the general opinion is that these changes aren't safe. The tested part would still be nice to have. Note that this patch depends on another header fixup patch I submitted to LKML yesterday: [PATCH] scatterlist.h needs types.h http://lkml.org/lkml/2007/3/01/141 Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-12IB/core: Use the new verbs DMA mapping functionsRalph Campbell1-3/+3
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>
2006-11-22WorkStruct: make allyesconfigDavid Howells1-1/+1
Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
2006-09-23[PATCH] missing includes from infiniband mergeAl Viro1-0/+1
indirect chains of includes are arch-specific and can't be relied upon... (hell, even attempt to build it for itanic would trigger vmalloc.h ones; err.h triggers on e.g. alpha). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-22IB/mad: Remove unused includesJames Lentini1-1/+0
The ib_mad module does not use a kthread function, but mad_priv.h includes <linux/kthread.h>. mad_rmpp.c does not do any DMA-related stuff, but includes <linux/dma-mapping.h>. Remove the unused includes. Signed-off-by: James Lentini <jlentini@netapp.com> Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-06-17IB: Make needlessly global ib_mad_cache staticRoland Dreier1-2/+0
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-05-12IB: refcount race fixesSean Hefty1-2/+3
Fix race condition during destruction calls to avoid possibility of accessing object after it has been freed. Instead of waking up a wait queue directly, which is susceptible to a race where the object is freed between the reference count going to 0 and the wake_up(), use a completion to wait in the function doing the freeing. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-30IB/mad: include GID/class when matching receivesJack Morgenstein1-1/+2
Received responses are currently matched against sent requests based on TID only. According to the spec, responses should match based on the combination of TID, management class, and requester LID/GID. Without the additional qualification, an agent that is responding to two requests, both of which have the same TID, can match RMPP ACKs with the incorrect transaction. This problem can occur on the SM node when responding to SA queries. Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il> Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-20IB/umad: Add support for large RMPP transfersJack Morgenstein1-4/+12
Add support for sending and receiving large RMPP transfers. The old code supports transfers only as large as a single contiguous kernel memory allocation. This patch uses linked list of memory buffers when sending and receiving data to avoid needing contiguous pages for larger transfers. Receive side: copy the arriving MADs in chunks instead of coalescing to one large buffer in kernel space. Send side: split a multipacket MAD buffer to a list of segments, (multipacket_list) and send these using a gather list of size 2. Also, save pointer to last sent segment, and retrieve requested segments by walking list starting at last sent segment. Finally, save pointer to last-acked segment. When retrying, retrieve segments for resending relative to this pointer. When updating last ack, start at this pointer. Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il> Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-10-25[IB] Fix MAD layer DMA mappings to avoid touching data buffer once mappedSean Hefty1-5/+3
The MAD layer was violating the DMA API by touching data buffers used for sends after the DMA mapping was done. This causes problems on non-cache-coherent architectures, because the device doing DMA won't see updates to the payload buffers that exist only in the CPU cache. Fix this by having all MAD consumers use ib_create_send_mad() to allocate their send buffers, and moving the DMA mapping into the MAD layer so it can be done just before calling send (and after any modifications of the send buffer by the MAD layer). Tested on a non-cache-coherent PowerPC 440SPe system. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-08-26[PATCH] IB: move include files to include/rdmaRoland Dreier1-2/+2
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: sparse endianness cleanupSean Hefty1-3/+3
Fix sparse warnings. Use __be* where appropriate. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-07-27[PATCH] IB: Add RMPP implementationHal Rosenstock1-3/+25
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: Add ib_modify_mad API to MADHal Rosenstock1-2/+0
Add new MAD layer call to modify (ib_modify_mad) the timeout of a sent MAD, and simplify cancel code. 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 automatic retries to MAD layerHal Rosenstock1-0/+2
Add automatic retries to MAD layer. 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: Fix timeout/cancelled MAD handlingHal Rosenstock1-0/+1
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>
2005-07-27[PATCH] IB: Change ib_mad_send_wr_private structHal Rosenstock1-2/+2
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>
2005-04-16[PATCH] IB: Keep MAD work completion validSean Hefty1-0/+1
Replace the *wc field in ib_mad_recv_wc from pointing to a structure on the stack to one allocated with the received MAD buffer. This allows a client to access the *wc field after their receive completion handler has returned. Signed-off-by: Sean Hefty <sean.hefty@intel.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>
2005-04-16Linux-2.6.12-rc2Linus Torvalds1-0/+199
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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