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2017-12-27RDMA/vmw_pvrdma: Remove usage of BIT() from UAPI headerBryan Tan1-6/+6
BIT() should not be used in the UAPI header. Remove it. Signed-off-by: Bryan Tan <bryantan@vmware.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2017-12-27RDMA/vmw_pvrdma: Add UAR SRQ macros in ABI header fileBryan Tan1-0/+2
Support for SRQs were added in the vmw_pvrdma userlevel library before two necessary macros were added into the kernel ABI header file. Add the two UAR SRQ macros that are required by the userlevel library so that the library can rely on the kernel ABI header file for these SRQ macro definitions. Fixes: 8b10ba783c9d ("RDMA/vmw_pvrdma: Add shared receive queue support") Reviewed-by: Adit Ranadive <aditr@vmware.com> Reviewed-by: Aditya Sarwade <asarwade@vmware.com> Reviewed-by: Jorgen Hansen <jhansen@vmware.com> Signed-off-by: Bryan Tan <bryantan@vmware.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2017-11-15Merge tag 'for-linus' of ↵Linus Torvalds1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma updates from Doug Ledford: "This is a fairly plain pull request. Lots of driver updates across the stack, a huge number of static analysis cleanups including a close to 50 patch series from Bart Van Assche, and a number of new features inside the stack such as general CQ moderation support. Nothing really stands out, but there might be a few conflicts as you take things in. In particular, the cleanups touched some of the same lines as the new timer_setup changes. Everything in this pull request has been through 0day and at least two days of linux-next (since Stephen doesn't necessarily flag new errors/warnings until day2). A few more items (about 30 patches) from Intel and Mellanox showed up on the list on Tuesday. I've excluded those from this pull request, and I'm sure some of them qualify as fixes suitable to send any time, but I still have to review them fully. If they contain mostly fixes and little or no new development, then I will probably send them through by the end of the week just to get them out of the way. There was a break in my acceptance of patches which coincides with the computer problems I had, and then when I got things mostly back under control I had a backlog of patches to process, which I did mostly last Friday and Monday. So there is a larger number of patches processed in that timeframe than I was striving for. Summary: - Add iWARP support to qedr driver - Lots of misc fixes across subsystem - Multiple update series to hns roce driver - Multiple update series to hfi1 driver - Updates to vnic driver - Add kref to wait struct in cxgb4 driver - Updates to i40iw driver - Mellanox shared pull request - timer_setup changes - massive cleanup series from Bart Van Assche - Two series of SRP/SRPT changes from Bart Van Assche - Core updates from Mellanox - i40iw updates - IPoIB updates - mlx5 updates - mlx4 updates - hns updates - bnxt_re fixes - PCI write padding support - Sparse/Smatch/warning cleanups/fixes - CQ moderation support - SRQ support in vmw_pvrdma" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (296 commits) RDMA/core: Rename kernel modify_cq to better describe its usage IB/mlx5: Add CQ moderation capability to query_device IB/mlx4: Add CQ moderation capability to query_device IB/uverbs: Add CQ moderation capability to query_device IB/mlx5: Exposing modify CQ callback to uverbs layer IB/mlx4: Exposing modify CQ callback to uverbs layer IB/uverbs: Allow CQ moderation with modify CQ iw_cxgb4: atomically flush the qp iw_cxgb4: only call the cq comp_handler when the cq is armed iw_cxgb4: Fix possible circular dependency locking warning RDMA/bnxt_re: report vlan_id and sl in qp1 recv completion IB/core: Only maintain real QPs in the security lists IB/ocrdma_hw: remove unnecessary code in ocrdma_mbx_dealloc_lkey RDMA/core: Make function rdma_copy_addr return void RDMA/vmw_pvrdma: Add shared receive queue support RDMA/core: avoid uninitialized variable warning in create_udata RDMA/bnxt_re: synchronize poll_cq and req_notify_cq verbs RDMA/bnxt_re: Flush CQ notification Work Queue before destroying QP RDMA/bnxt_re: Set QP state in case of response completion errors RDMA/bnxt_re: Add memory barriers when processing CQ/EQ entries ...
2017-11-13RDMA/vmw_pvrdma: Add shared receive queue supportBryan Tan1-0/+2
Add the required functions needed to support SRQs. Currently, kernel clients are not supported. SRQs will only be available in userspace. Reviewed-by: Adit Ranadive <aditr@vmware.com> Reviewed-by: Aditya Sarwade <asarwade@vmware.com> Reviewed-by: Jorgen Hansen <jhansen@vmware.com> Reviewed-by: Nitish Bhat <bnitish@vmware.com> Signed-off-by: Bryan Tan <bryantan@vmware.com> Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-11-02License cleanup: add SPDX license identifier to uapi header files with a licenseGreg Kroah-Hartman1-0/+1
Many user space API headers have licensing information, which is either incomplete, badly formatted or just a shorthand for referring to the license under which the file is supposed to be. This makes it hard for compliance tools to determine the correct license. Update these files with an SPDX license identifier. The identifier was chosen based on the license information in the file. GPL/LGPL licensed headers get the matching GPL/LGPL SPDX license identifier with the added 'WITH Linux-syscall-note' exception, which is the officially assigned exception identifier for the kernel syscall exception: NOTE! This copyright does *not* cover user programs that use kernel services by normal system calls - this is merely considered normal use of the kernel, and does *not* fall under the heading of "derived work". This exception makes it possible to include GPL headers into non GPL code, without confusing license compliance tools. Headers which have either explicit dual licensing or are just licensed under a non GPL license are updated with the corresponding SPDX identifier and the GPLv2 with syscall exception identifier. The format is: ((GPL-2.0 WITH Linux-syscall-note) OR SPDX-ID-OF-OTHER-LICENSE) SPDX license identifiers are a legally binding shorthand, which can be used instead of the full boiler plate text. The update does not remove existing license information as this has to be done on a case by case basis and the copyright holders might have to be consulted. This will happen in a separate step. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. See the previous patch in this series for the methodology of how this patch was researched. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-31RDMA/vmw_pvrdma: Report network header type in WCAditya Sarwade1-2/+4
We should report the network header type in the work completion so that the kernel can infer the right RoCE type headers. Reviewed-by: Bryan Tan <bryantan@vmware.com> Signed-off-by: Aditya Sarwade <asarwade@vmware.com> Signed-off-by: Adit Ranadive <aditr@vmware.com> Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-25IB/vmw_pvrdma: Spare annotate imm_dataJason Gunthorpe1-2/+2
imm_data is copied directly from the ib_send_wr and ib_wc which have it marked as __be32, copy that mark into the uapi structures as well. Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Tested-by: Adit Ranadive <aditr@vmware.com> Acked-by: Adit Ranadive <aditr@vmware.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-14IB: Add vmw_pvrdma driverAdit Ranadive1-0/+289
This patch series adds a driver for a paravirtual RDMA device. The device is developed for VMware's Virtual Machines and allows existing RDMA applications to continue to use existing Verbs API when deployed in VMs on ESXi. We recently did a presentation in the OFA Workshop [1] regarding this device. Description and RDMA Support ============================ The virtual device is exposed as a dual function PCIe device. One part is a virtual network device (VMXNet3) which provides networking properties like MAC, IP addresses to the RDMA part of the device. The networking properties are used to register GIDs required by RDMA applications to communicate. These patches add support and the all required infrastructure for letting applications use such a device. We support the mandatory Verbs API as well as the base memory management extensions (Local Inv, Send with Inv and Fast Register Work Requests). We currently support both Reliable Connected and Unreliable Datagram QPs but do not support Shared Receive Queues (SRQs). Also, we support the following types of Work Requests: o Send/Receive (with or without Immediate Data) o RDMA Write (with or without Immediate Data) o RDMA Read o Local Invalidate o Send with Invalidate o Fast Register Work Requests This version only adds support for version 1 of RoCE. We will add RoCEv2 support in a future patch. We do support registration of both MAC-based and IP-based GIDs. I have also created a git tree for our user-level driver [2]. Testing ======= We have tested this internally for various types of Guest OS - Red Hat, Centos, Ubuntu 12.04/14.04/16.04, Oracle Enterprise Linux, SLES 12 using backported versions of this driver. The tests included several runs of the performance tests (included with OFED), Intel MPI PingPong benchmark on OpenMPI, krping for FRWRs. Mellanox has been kind enough to test the backported version of the driver internally on their hardware using a VMware provided ESX build. I have also applied and tested this with Doug's k.o/for-4.9 branch (commit 5603910b). Note, that this patch series should be applied all together. I split out the commits so that it may be easier to review. PVRDMA Resources ================ [1] OFA Workshop Presentation - https://openfabrics.org/images/eventpresos/2016presentations/102parardma.pdf [2] Libpvrdma User-level library - http://git.openfabrics.org/?p=~aditr/libpvrdma.git;a=summary Reviewed-by: Jorgen Hansen <jhansen@vmware.com> Reviewed-by: George Zhang <georgezhang@vmware.com> Reviewed-by: Aditya Sarwade <asarwade@vmware.com> Reviewed-by: Bryan Tan <bryantan@vmware.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Adit Ranadive <aditr@vmware.com> Signed-off-by: Doug Ledford <dledford@redhat.com>

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