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third-party-mirror / linux-rdma / rdma-core / refs/heads/stable-v39
commitb8bc812b4f4cedf13c8bf93adb8cee1601f15134[log] [tgz]
authorJunxian Huang <huangjunxian6@hisilicon.com>Wed Oct 22 14:14:23 2025 +0800
committerNicolas Morey <nmorey@suse.com>Fri Oct 31 17:27:57 2025 +0100
tree0732388d6cc2b147846842280e78f91335bef839
parentfaaf85c5e7163a49e68842487fdf9e6036178f7e [diff]
libhns: Fix wrong WQE data when QP wraps around

[ Upstream commit 15adbcf23df2821e8e5a211a7f527fd2a649fb3e ]

DirectWQE fields are not assigned or cleared explicitly when
DirectWQE not used. When QP wraps around, data in these fields
from the previous use at the same position still remains and
are issued to HW by mistake. Clear these fields before issuing
doorbell to HW.

Fixes: 159933c37450 ("libhns: Add support for direct wqe")
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
Signed-off-by: Nicolas Morey <nmorey@suse.com>
1 file changed
tree: 0732388d6cc2b147846842280e78f91335bef839
  1. ABI/
  2. buildlib/
  3. ccan/
  4. debian/
  5. Documentation/
  6. ibacm/
  7. infiniband-diags/
  8. iwpmd/
  9. kernel-boot/
  10. kernel-headers/
  11. libibmad/
  12. libibnetdisc/
  13. libibumad/
  14. libibverbs/
  15. librdmacm/
  16. providers/
  17. pyverbs/
  18. rdma-ndd/
  19. redhat/
  20. srp_daemon/
  21. suse/
  22. tests/
  23. util/
  24. .clang-format
  25. .gitignore
  26. .mailmap
  27. build.sh
  28. CMakeLists.txt
  29. COPYING.BSD_FB
  30. COPYING.BSD_MIT
  31. COPYING.GPL2
  32. COPYING.md
  33. MAINTAINERS
  34. README.md
README.md

Build Status

RDMA Core Userspace Libraries and Daemons

This is the userspace components for the Linux Kernel's drivers/infiniband subsystem. Specifically this contains the userspace libraries for the following device nodes:

  • /dev/infiniband/uverbsX (libibverbs)
  • /dev/infiniband/rdma_cm (librdmacm)
  • /dev/infiniband/umadX (libibumad)

The userspace component of the libibverbs RDMA kernel drivers are included under the providers/ directory. Support for the following Kernel RDMA drivers is included:

  • efa.ko
  • iw_cxgb4.ko
  • hfi1.ko
  • hns-roce.ko
  • irdma.ko
  • ib_qib.ko
  • mlx4_ib.ko
  • mlx5_ib.ko
  • ib_mthca.ko
  • ocrdma.ko
  • qedr.ko
  • rdma_rxe.ko
  • siw.ko
  • vmw_pvrdma.ko

Additional service daemons are provided for:

  • srp_daemon (ib_srp.ko)
  • iwpmd (for iwarp kernel providers)
  • ibacm (for InfiniBand communication management assistant)

Building

This project uses a cmake based build system. Quick start:

$ bash build.sh

build/bin will contain the sample programs and build/lib will contain the shared libraries. The build is configured to run all the programs ‘in-place’ and cannot be installed.

Debian Derived

$ apt-get install build-essential cmake gcc libudev-dev libnl-3-dev libnl-route-3-dev ninja-build pkg-config valgrind python3-dev cython3 python3-docutils pandoc

Supported releases:

  • Debian 9 (stretch) or newer
  • Ubuntu 16.04 LTS (xenial) or newer

Fedora, CentOS 8

$ dnf builddep redhat/rdma-core.spec

NOTE: Fedora Core uses the name ‘ninja-build’ for the ‘ninja’ command.

openSUSE

$ zypper install cmake gcc libnl3-devel libudev-devel ninja pkg-config valgrind-devel python3-devel python3-Cython python3-docutils pandoc

Building on CentOS 7, Amazon Linux 2

Install required packages:

$ yum install cmake gcc libnl3-devel libudev-devel make pkgconfig valgrind-devel

Developers on CentOS 7 or Amazon Linux 2 are suggested to install more modern tooling for the best experience.

CentOS 7:

$ yum install epel-release
$ yum install cmake3 ninja-build pandoc

Amazon Linux 2:

$ amazon-linux-extras install epel
$ yum install cmake3 ninja-build pandoc

NOTE: EPEL uses the name ‘ninja-build’ for the ‘ninja’ command, and ‘cmake3’ for the ‘cmake’ command.

Usage

To set up software RDMA on an existing interface with either of the available drivers, use the following commands, substituting <DRIVER> with the name of the driver of your choice (rdma_rxe or siw) and <TYPE> with the type corresponding to the driver (rxe or siw).

# modprobe <DRIVER>
# rdma link add <NAME> type <TYPE> netdev <DEVICE>

Please note that you need version of iproute2 recent enough is required for the command above to work.

You can use either ibv_devices or rdma link to verify that the device was successfully added.

Reporting bugs

Bugs should be reported to the linux-rdma@vger.kernel.org mailing list In your bug report, please include:

  • Information about your system:

    • Linux distribution and version
    • Linux kernel and version
    • InfiniBand hardware and firmware version
    • ... any other relevant information

  • How to reproduce the bug.

  • If the bug is a crash, the exact output printed out when the crash occurred, including any kernel messages produced.

Submitting patches

See Contributing to rdma-core.