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path: root/drivers/infiniband/hw/nes/nes_verbs.c (follow)
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2016-12-14Merge branch 'mlx' into merge-testDoug Ledford1-1/+2
2016-12-13IB/core: Let create_ah return extended response to userMoni Shoua1-1/+2
Add struct ib_udata to the signature of create_ah callback that is implemented by IB device drivers. This allows HW drivers to return extra data to the userspace library. This patch prepares the ground for mlx5 driver to resolve destination mac address for a given GID and return it to userspace. This patch was previously submitted by Knut Omang as a part of the patch set to support Oracle's Infiniband HCA (SIF). Signed-off-by: Knut Omang <knut.omang@oracle.com> Signed-off-by: Moni Shoua <monis@mellanox.com> Reviewed-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-03IB/nes: Remove debug prints after allocation failureLeon Romanovsky1-4/+0
The prints after [k|v][m|z|c]alloc() functions are not needed, because in case of failure, allocator will print their internal error prints anyway. Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-06-23IB/nes: Support device FW version stringIra Weiny1-19/+14
And remove the sysfs in favor of the core version. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-05-13Merge branches 'cxgb4-2', 'i40iw-2', 'ipoib', 'misc-4.7' and 'mlx5-fcs' into k.o/for-4.7Doug Ledford1-1/+35
2016-05-13IB/nes: Deinline nes_free_qp_mem, save 1072 bytesDenys Vlasenko1-1/+1
This function compiles to 550 bytes of machine code. Three callsites, all in nes_create_qp. Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com> CC: Faisal Latif <faisal.latif@intel.com> CC: Doug Ledford <dledford@redhat.com> CC: linux-rdma@vger.kernel.org CC: linux-kernel@vger.kernel.org Reviewed-By: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-05-13RDMA/nes: Adding queue drain functionsTatyana Nikolova1-0/+34
Adding sq and rq drain functions, which block until all previously posted wr-s in the specified queue have completed. A completion object is signaled to unblock the thread, when the last cqe for the corresponding queue is processed. Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com> Signed-off-by: Faisal Latif <faisal.latif@intel.com> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-05-13IB/core: Enhance ib_map_mr_sg()Bart Van Assche1-1/+1
The SRP initiator allows to set max_sectors to a value that exceeds the largest amount of data that can be mapped at once with an mlx4 HCA using fast registration and a page size of 4 KB. Hence modify ib_map_mr_sg() such that it can map partial sg-elements. If an sg-element has been mapped partially, let the caller know which fraction has been mapped by adjusting *sg_offset. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Tested-by: Laurence Oberman <loberman@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-05-13IB/core: Add passing an offset into the SG to ib_map_mr_sgChristoph Hellwig1-4/+3
Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Steve Wise <swise@opengridcomputing.com> Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-16Merge branches 'nes', 'cxgb4' and 'iwpm' into k.o/for-4.6Doug Ledford1-0/+2
2016-03-16iw_nes: remove port mapper related codeFaisal Latif1-0/+2
Now that most of the port mapper code been moved to iwcm, we can remove it from port mapper service user drivers. Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by: Tatyana E. Nikolova <tatyana.e.nikolova@intel.com> Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-01IB/core: Add vendor's specific data to alloc mwMatan Barak1-1/+2
Passing udata to the vendor's driver in order to pass data from the user-space driver to the kernel-space driver. This data will be used in downstream patches. Signed-off-by: Matan Barak <matanb@mellanox.com> Reviewed-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-12-23nes: simplify nes_reg_phys_mr calling conventionsChristoph Hellwig1-108/+32
Just pass and address/size pair instead of an ib_phys_buf array. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Sagi Grimberg <sagig@mellanox.com> Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> [core] Reviewed-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-12-23IB: remove in-kernel support for memory windowsChristoph Hellwig1-75/+0
Remove the unused ib_allow_mw and ib_bind_mw functions, remove the unused IB_WR_BIND_MW and IB_WC_BIND_MW opcodes and move ib_dealloc_mw into the uverbs module. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Sagi Grimberg <sagig@mellanox.com> Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> [core] Reviewed-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-12-23IB: remove support for phys MRsChristoph Hellwig1-2/+1
We have stopped using phys MRs in the kernel a while ago, so let's remove all the cruft used to implement them. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Sagi Grimberg <sagig@mellanox.com> Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> [core] Reviewed-By: Devesh Sharma<devesh.sharma@avagotech.com> [ocrdma] Reviewed-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-28RDMA/nes: Remove old FRWR APISagi Grimberg1-161/+1
No ULP uses it anymore, go ahead and remove it. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-28RDMA/nes: Support the new memory registration APISagi Grimberg1-1/+116
Support the new memory registration API by allocating a private page list array in nes_mr and populate it when nes_map_mr_sg is invoked. Also, support IB_WR_REG_MR by duplicating IB_WR_FAST_REG_MR handling and take the needed information from different places: - page_size, iova, length (ib_mr) - page array (nes_mr) - key, access flags (ib_reg_wr) The IB_WR_FAST_REG_MR handlers will be removed later when all the ULPs will be converted. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-08IB: split struct ib_send_wrChristoph Hellwig1-20/+21
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>
2015-08-30nes: Support ib_alloc_mr verbSagi Grimberg1-5/+14
Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-06-12IB/mad: Add support for additional MAD info to/from driversIra Weiny1-1/+3
In order to support alternate sized MADs (and variable sized MADs on OPA devices) add in/out MAD size parameters to the process_mad core call. In addition, add an out_mad_pkey_index to communicate the pkey index the driver wishes the MAD stack to use when sending OPA MAD responses. The out MAD size and the out MAD PKey index are required by the MAD stack to generate responses on OPA devices. Furthermore, the in and out MAD parameters are made generic by specifying them as ib_mad_hdr rather than ib_mad. Drivers are modified as needed and are protected by BUG_ON flags if the MAD sizes passed to them is incorrect. Signed-off-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-06-12IB/core: Pass hardware specific data in query_deviceMatan Barak1-1/+5
Vendors should be able to pass vendor specific data to/from user-space via query_device uverb. In order to do this, we need to pass the vendors' specific udata. Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-06-12IB/core: Change provider's API of create_cq to be extendibleMatan Barak1-3/+8
Add a new ib_cq_init_attr structure which contains the previous cqe (minimum number of CQ entries) and comp_vector (completion vector) in addition to a new flags field. All vendors' create_cq callbacks are changed in order to work with the new API. This commit does not change any functionality. Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Reviewed-By: Devesh Sharma <devesh.sharma@avagotech.com> to patch #2 Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-06-02IB/core cleanup: Add const on args - device->process_madIra Weiny1-2/+2
The process_mad device function declares some parameters as "in". Make those parameters const and adjust the call tree under process_mad in the various drivers accordingly. Signed-off-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Hal Rosenstock <hal@mellanox.com> Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-05-20IB/core: Convert core to use bitfield for capsIra Weiny1-7/+1
Remove query_protocol callback Use the new Core Capability bits for: rdma_protocol_* rdma_cap_ib_mad rdma_cap_ib_smi rdma_cap_ib_cm rdma_cap_iw_cm rdma_cap_ib_sa rdma_cap_ib_mcast rdma_cap_af_ib rdma_cap_eth_ah Signed-off-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-05-20IB/core: Add per port immutable struct to ib_deviceIra Weiny1-0/+16
As of commit 5eb620c81ce3 "IB/core: Add helpers for uncached GID and P_Key searches"; pkey_tbl_len and gid_tbl_len are immutable data which are stored in the ib_device. The per port core capability flags to be added later are also immutable data to be stored in the ib_device object. In preparation for this create a structure for per port immutable data and place the pkey and gid table lengths within this structure. "get_port_immutable" is added as a mandatory device function to allow the drivers to fill in this data. Signed-off-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-05-18IB/Verbs: Implement new callback query_protocol()Michael Wang1-0/+6
Add new callback query_protocol() and implement for each HW. Mapping List: node-type link-layer transport protocol nes RNIC ETH IWARP IWARP amso1100 RNIC ETH IWARP IWARP cxgb3 RNIC ETH IWARP IWARP cxgb4 RNIC ETH IWARP IWARP usnic USNIC_UDP ETH USNIC_UDP USNIC_UDP ocrdma IB_CA ETH IB IBOE mlx4 IB_CA IB/ETH IB IB/IBOE mlx5 IB_CA IB IB IB ehca IB_CA IB IB IB ipath IB_CA IB IB IB mthca IB_CA IB IB IB qib IB_CA IB IB IB Signed-off-by: Michael Wang <yun.wang@profitbricks.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Tested-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Sean Hefty <sean.hefty@intel.com> Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Tested-by: Doug Ledford <dledford@redhat.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2014-12-15IB/core: Replace ib_umem's offset field with a full addressHaggai Eran1-3/+3
In order to allow umems that do not pin memory, we need the umem to keep track of its region's address. This makes the offset field redundant, and so this patch removes it. Signed-off-by: Haggai Eran <haggaie@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-08-08infiniband: use pci_zalloc_consistentJoe Perches1-3/+2
Remove the now unnecessary memset too. Signed-off-by: Joe Perches <joe@perches.com> Cc: Tom Tucker <tom@opengridcomputing.com> Acked-by: Steve Wise <swise@opengridcomputing.com> Cc: Roland Dreier <roland@kernel.org> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Cc: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-03Merge branches 'core', 'cxgb4', 'ip-roce', 'iser', 'misc', 'mlx4', 'nes', 'ocrdma', 'qib', 'sgwrapper', 'srp' and 'usnic' into for-nextRoland Dreier1-4/+4
2014-03-17RDMA/nes: Clean up a conditionDan Carpenter1-3/+1
We don't need to test "ret" twice and also the white space is messed up. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-03-17IB/nes: Return an error on ib_copy_from_udata() failure instead of NULLYann Droneaud1-1/+1
In case of error while accessing to userspace memory, function nes_create_qp() returns NULL instead of an error code wrapped through ERR_PTR(). But NULL is not expected by ib_uverbs_create_qp(), as it check for error with IS_ERR(). As page 0 is likely not mapped, it is going to trigger an Oops when the kernel will try to dereference NULL pointer to access to struct ib_qp's fields. In some rare cases, page 0 could be mapped by userspace, which could turn this bug to a vulnerability that could be exploited: the function pointers in struct ib_device will be under userspace total control. This was caught when using spatch (aka. coccinelle) to rewrite calls to ib_copy_{from,to}_udata(). Link: https://www.gitorious.org/opteya/ib-hw-nes-create-qp-null Link: https://www.gitorious.org/opteya/coccib/source/75ebf2c1033c64c1d81df13e4ae44ee99c989eba:ib_copy_udata.cocci Link: http://marc.info/?i=cover.1394485254.git.ydroneaud@opteya.com Cc: <stable@vger.kernel.org> Signed-off-by: Yann Droneaud <ydroneaud@opteya.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-03-17RDMA/nes: Fix for passing a valid QP pointer to the user space libraryTatyana Nikolova1-0/+2
Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-03-04IB: Refactor umem to use linear SG tableYishai Hadas1-126/+127
This patch refactors the IB core umem code and vendor drivers to use a linear (chained) SG table instead of chunk list. With this change the relevant code becomes clearer—no need for nested loops to build and use umem. Signed-off-by: Shachar Raindel <raindel@mellanox.com> Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-11-09RDMA/nes: Remove self-assignment from nes_query_qp()Dave Jones1-1/+1
Assigning a value to itself is pointless. Spotted with coverity, no hardware to test. Signed-off-by: Dave Jones <davej@fedoraproject.org> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-07-30RDMA/nes: Fix info leaks in nes_create_qp() and nes_create_cq()Dan Carpenter1-1/+2
We pass a few bytes of uninitialized stack memory to the user here. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-02-21IB/core: Add "type 2" memory windows supportShani Michaeli1-8/+11
This patch enhances the IB core support for Memory Windows (MWs). MWs allow an application to have better/flexible control over remote access to memory. Two types of MWs are supported, with the second type having two flavors: Type 1 - associated with PD only Type 2A - associated with QPN only Type 2B - associated with PD and QPN Applications can allocate a MW once, and then repeatedly bind the MW to different ranges in MRs that are associated to the same PD. Type 1 windows are bound through a verb, while type 2 windows are bound by posting a work request. The 32-bit memory key is composed of a 24-bit index and an 8-bit key. The key is changed with each bind, thus allowing more control over the peer's use of the memory key. The changes introduced are the following: * add memory window type enum and a corresponding parameter to ib_alloc_mw. * type 2 memory window bind work request support. * create a struct that contains the common part of the bind verb struct ibv_mw_bind and the bind work request into a single struct. * add the ib_inc_rkey helper function to advance the tag part of an rkey. Consumer interface details: * new device capability flags IB_DEVICE_MEM_WINDOW_TYPE_2A and IB_DEVICE_MEM_WINDOW_TYPE_2B are added to indicate device support for these features. Devices can set either IB_DEVICE_MEM_WINDOW_TYPE_2A or IB_DEVICE_MEM_WINDOW_TYPE_2B if it supports type 2A or type 2B memory windows. It can set neither to indicate it doesn't support type 2 windows at all. * modify existing provides and consumers code to the new param of ib_alloc_mw and the ib_mw_bind_info structure Signed-off-by: Haggai Eran <haggaie@mellanox.com> Signed-off-by: Shani Michaeli <shanim@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-12-08RDMA/nes: Fix for crash when registering zero length MR for CQTatyana Nikolova1-0/+5
Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-12-08RDMA/nes: Fix for terminate timer crashTatyana Nikolova1-1/+3
The terminate timer needs to be initialized just once. Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-10-03RDMA/nes: Remove unnecessary if-else statementTatyana Nikolova1-12/+3
Remove unnecessary if-else statement -- we do the same thing either way. Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-10-03RDMA/nes: Add missing break to switch.Tatyana Nikolova1-0/+1
Static code analyzer cppcheck points out a missing break. Reported-by: David Binderman <dcb314@hotmail.com> Addresses: <https://bugzilla.kernel.org/show_bug.cgi?id=47671> Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30RDMA/nes: Print hardware resource typeTatyana Nikolova1-7/+7
Hardware resource types are added and when a resource isn't available, its type is printed. Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-03-05IB: Use central enum for speed instead of hard-coded valuesOr Gerlitz1-1/+1
The kernel IB stack uses one enumeration for IB speed, which wasn't explicitly specified in the verbs header file. Add that enum, and use it all over the code. The IB speed/width notation is also used by iWARP and IBoE HW drivers, which use the convention of rate = speed * width to advertise their port link rate. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-01-30RDMA/nes: Copyright updateTatyana Nikolova1-1/+1
Update copyright information in the source files. Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> Signed-off-by: Faisal Latif <Faisal.Latif@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-01-27RDMA/nes: Fix fast memory registration opcodeTatyana Nikolova1-1/+1
Fix fast memory registration opcode in local invalidate completion. Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> Signed-off-by: Donald Wood <Donald.E.Wood@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-01-27RDMA/nes: Fix fast memory registration lengthTatyana Nikolova1-0/+2
Zero high order word of fast memory registration (FMR) length field. FMR length field is 32 bits, so high word should always be zero. Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> Signed-off-by: Donald Wood <Donald.E.Wood@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-10-10RDMA/nes: Support for Packed And Unaligned fpdusFaisal Latif1-2/+1
Support for Packed and Unaligned (PAU) FPDUs is needed for interoperability between NES and non-NES nodes. When the NES hardware detects a PAU frame, it will pass it to the driver to process the frame. NES driver creates a new frame for each FPDU and forwards it to the hardware to be sent to its associated qp. Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> Signed-off-by: Faisal Latif <Faisal.Latif@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-10-06RDMA/nes: Add missing calls to ib_umem_release()Julia Lawall1-1/+4
Add calls to ib_umem_release(), as in the other error-handling code in nes_reg_user_mr(). Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-07-18RDMA: Allow for NULL .modify_device() and .modify_port() methodsBart Van Assche1-11/+0
These methods don't make sense for iWARP devices, so rather than forcing them to implement stubs, just return -ENOSYS in the core if the hardware driver doesn't set .modify_device and/or .modify_port. Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-05-09RDMA/iwcm: Get rid of enum iw_cm_event_statusRoland Dreier1-1/+1
The IW_CM_EVENT_STATUS_xxx values were used in only a couple of places; cma.c uses -Exxx values instead, and so do the amso1100, cxgb3 and cxgb4 drivers -- only nes was using the enum values (with the mild consequence that all nes connection failures were treated as generic errors rather than reported as timeouts or rejections). We can fix this confusion by getting rid of enum iw_cm_event_status and using a plain int for struct iw_cm_event.status, and converting nes to use -Exxx as the other iWARP drivers do. This also gets rid of the warning drivers/infiniband/core/cma.c: In function 'cma_iw_handler': drivers/infiniband/core/cma.c:1333:3: warning: case value '4294967185' not in enumerated type 'enum iw_cm_event_status' drivers/infiniband/core/cma.c:1336:3: warning: case value '4294967186' not in enumerated type 'enum iw_cm_event_status' drivers/infiniband/core/cma.c:1332:3: warning: case value '4294967192' not in enumerated type 'enum iw_cm_event_status' Signed-off-by: Roland Dreier <roland@purestorage.com> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Reviewed-by: Sean Hefty <sean.hefty@intel.com> Reviewed-by: Faisal Latif <faisal.latif@intel.com>
2011-01-16RDMA/nes: Generate IB_EVENT_PORT_ERR/PORT_ACTIVE eventsMaciej Sosnowski1-1/+36
Depending on link state change, IB_EVENT_PORT_ERR or IB_EVENT_PORT_ACTIVE should be generated when handling MAC interrupts. Plugging in a cable happens to result in series of interrupts changing driver's link state a number of times before finally staying at link up (e.g. link up, link down, link up, link down, ..., link up). To prevent sending series of redundant IB_EVENT_PORT_ACTIVE and IB_EVENT_PORT_ERR events, we use a timer to debounce them in nes_port_ibevent(). Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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