v2.4.1

• Add support for persistent mapping.
• Fix bug in src/gdrdrv/Makefile.
• Fix compile-time bug when check.h is not found.

v2.4

• Various bug fixes in the test and benchmark applications.
• Prefix all applications with "gdrcopy_".
• Introduce more unit tests in gdrcopy_sanity.
• Introduce gdrcopy_pplat benchmark application.
• Remove dependency on libcheck and libsubunit
• Introduce gdr_get_info_v2.
• Introduce new copy algorithm for device mappings.
• Add support for NVIDIA BLUEFIELD-3.
• Add support for Linux kernel >= 6.3.
• Add support for SLES and OpenSUSE.
• Add support for systemd service on RHEL9.
• Relicense gdrdrv to Dual MIT/GPL.
• Fix bugs in gdrdrv when pinning two small buffers back-to-back.
• Add support for coherent platforms such as Grace-Hopper.
• Add support for Confidential Computing (CC).

v2.3.1

• Add a workaround for the GPL-compatibility issue when compile with CONFIG_ARCH_HAS_CC_PLATFORM on Linux kernel 5.18+.
• Fix error in init.d/gdrcopy due to missing /etc/rc.d/init.d/functions.

v2.3

• Remove automatically-generated build id links in rpm packages.
• Remove gdrcopy-kmod from the Requires field of the gdrcopy rpm package.
• Remove gdrdrv-dkms dependency enforcement from the gdrcopy deb package.
• Add libsubunit0 to the dependency list of the gdrcopy deb package.
• Add apiperf test.
• Revamp gdrdrv to fix race-condition bugs.
• Add an option to build kmod package.
• Split the gdrcopy deb package into meta, libgdrapi, and tests packages.
• Update the package maintainer.
• Various updates in README.

v2.2

• Add support for ARM64.
• Update various information on README.
• Improve Makefile.
• Add multi-arch support.
• Handle removal of HAVE_UNLOCKED_IOCTL in Linux kernel v5.9 and later.
• Prevent dpkg package creation to unnecessarily compile gdrdrv.
• Improve gdr_open error message.
• Fix bug that prevents sanity from correctly summarizing failure.
• Add dkms support in kmod package.
• Handle the removal of kzfree in Linux kernel v5.10 and later.
• Improve small-size copy-to-mapping.

v2.1

• fix build problem on RHL8 kernels
• relax checks in gdrdrv to support multi-threading use cases
• fix fd leak in gdr_open()
• introduce new copylat test
• remove CUDA RT dependency in tests
• assorted cleanups

v2.1 beta2

second release candidate

v2.1 beta1

v2.1 release candidate

version 2.0

GDRCopy version 2.0

Changelog:

• Harden security in gdrdrv.
• Enable cached mappings in POWER9.
• Improve copy performance with unrolling in POWERPC.
• Consolidate basic and validate into a new functional and security test, sanity.
• Introduce compile time and runtime version checking in libgdrapi.
• Introduce both RPM and deb packaging for the userspace library as well as the sample/test applications.
• Introduce dkms packaging for the gdrdrv driver.
• Rename two APIs, i.e. gdr_copy_from/to_bar to gdr_copy_from/to_mapping.
• Update README

version 2.0 beta 4

This is a pre-release version of GDRCopy v2.0.
This version includes:

• a minor bug fix in gdrdrv.
• a minor bug fix in rpm packaging.
• a new unit test in sanity.
• document updates.