# EFA Linux Kernel Driver Release Notes

## Supported Kernel Versions and Distributions
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/efa.html#efa-amis

## r2.15.3 release notes
* Fix cmake dependency on Amazon Linux 2

## r2.15.2 release notes
* Fix cmake 4.0 compatibility failure

## r2.15.1 release notes
* Cleanup destroy CQ kernel compatibility
* Remove backports for kernels older than 4.14
* Fix support for RHEL 9.6 compatibility

## r2.15.0 release notes
* Fix page size optimization for large physically contiguous MRs
* Cleanup interrupt related code
* Reset the device if driver initialization failed

## r2.13.1 release notes
* Adjust dmabuf MR registration interface for mainline 6.12 kernels

## r2.13.0 release notes
* Add an option to create QP with specific service level
* Report link speed according to device parameters

## r2.12.1 release notes
* Fix RNR configuration for SRD kernel QPs

## r2.12.0 release notes
* Introduce EFA kernel verbs support
* Add 0xefa3 device support
* Report device node GUID
* Adjust CQ creation interface for mainline 6.11 kernels

## r2.10.0 release notes
* Introduce QP with unsolicited write with immediate receive
* Add gracefull shutdown
* Limit EQs to available MSI-X vectors
* Improve admin completions error handling
* Improve error handling on missing BARs

## r2.8.0 release notes
* Introduce Query MR support
* Expose underlying interconnects used to reach memory regions
* Fix compilation issues for mainline 6.8 kernels

## r2.6.0 release notes
* Fix wrong resources destruction order
* Enable Nvidia GDR using P2P on up-to-date kernels
* Expose accelerator memory P2P provider in sysfs

## r2.5.0 release notes
* Add RDMA write statistics

## r2.4.1 release notes
* Fix memory registration for systems with PAGE_SIZE > 4K

## r2.4.0 release notes
* Add data polling support
* Add RDMA write support

## r2.1.1 release notes
* Fix dmabuf backport for some kernels

## r2.1.0 release notes
* Add support for CQ receive entries with source GID
* Add 0xefa2 device support
* Fix sysfs show on older kernels

## r1.16.0 release notes
* Add CQ notifications
* Add support for dmabuf
* Add NeuronLink RDMA support
* Remove gdr from module info keys

## r1.14.2 release notes
* Various GDR fixes

## r1.14.1 release notes
* Make gdr sysfs return zero in case nvidia symbols are not available

## r1.14.0 release notes
* Unify the standard and GDR packages
* Split hardware stats to device and port stats
* Fix unfree'd IRQ vectors on error flow
* Fix potential deadlock in GDR flow

## r1.13.0 release notes
* Remove static dependency of nvidia module in GDR driver
* Fix potential memory leak in GDR memory registration error flow
* Upstream kernel alignments
* Remove old kernel APIs

## r1.12.3 release notes
* Fix potential NULL pointer dereference when using GDR on newer kernel version

## r1.12.2 release notes
* Fix mmap flow for applications compiled with EXEC permissions
* Couple of packaging fixes

## r1.12.1 release notes
* Limit number of CMake processes to prevent exhaustion of system resources

## r1.12.0 release notes
* Add COPYING file
* Switch to CMake build system
* Align to upstream kernel

## r1.11.1 release notes
* Fix GDR driver packaging issues

## r1.11.0 release notes
* Fix wrong modify QP parameters
* Align to upstream kernel changes

## r1.10.2 release notes
* Fix possible use of uninitialized variable in GDR error flow

## r1.10.1 release notes
* Misc fixes to GDR package installation
* Expose messages and RDMA read statistics
* Fix an error when registering MR on older kernels

## r1.10.0 release notes
* SRD RNR retry support
* Remove a wrong warning triggered by GDR cleanup
* Fix GDR driver compilation on Ubuntu 16.04
* Add GDR driver packaging (rpm/deb)

## r1.9.0 release notes
* Adapt to upstream kernel
* Refactor locking scheme in GDR flows
* Report create CQ error counter
* Report mmap error counter
* Report admin commands error counter
* Add a sysfs indication to GDR drivers
* Add 0xefa1 device support

## r1.6.0 release notes
* Add NVIDIA GPUDirect RDMA support
* Add a configure script to the compilation process and use it to test for kernel functionality
* Change directory structure, the source files are now located under src/
* Fix compilation on certain kernels of SuSE15.1
* Backport changes from upstream kernel

## r1.5.1 release notes
* Fix SuSE ioctl flow backport

## r1.5.0 release notes
* RDMA read support
* Make ib_uverbs a soft dependency
* Fix ioctl flows on older kernels
* SuSE 15.1 support

## r1.4.1 release notes
* Fix Incorrect error print
* Add support for CentOS 7.7

## r1.4.0 release notes
* Expose device statistics
* Rate limit admin queue error prints
* Properly assign err variable on everbs device creation failure

## r1.3.1 release notes

* Fix build issue in debian/rules file
* Fix kcompat issue (usage before include)

## r1.3.0 release notes

* Align to the driver that was merged upstream
* Fix a bug where failed functions would return success return value
* Fix modify QP udata check backport
* Fix locking issues in mmap flow
* Add Debian packaging files

## r0.9.2 release notes

* Bug fix module load issue

## r0.9.1 release notes

* Bug fix in EFA spec file
* Upstream review cleanups

## r0.9.0 release notes

Initial commit
