Signed-off-by: Jerin Jacob <jerin.ja...@caviumnetworks.com> --- doc/guides/rel_notes/release_17_02.rst | 13 +++++++++++++ 1 file changed, 13 insertions(+)
diff --git a/doc/guides/rel_notes/release_17_02.rst b/doc/guides/rel_notes/release_17_02.rst index 0ecd720..eb0e3c0 100644 --- a/doc/guides/rel_notes/release_17_02.rst +++ b/doc/guides/rel_notes/release_17_02.rst @@ -193,6 +193,19 @@ New Features See the :ref:`Elastic Flow Distributor Library <Efd_Library>` documentation in the Programmers Guide document, for more information. +* **Added generic EAL API for I/O device memory read/write operations.** + + This API introduces 8-bit, 16-bit, 32bit, 64bit I/O device + memory read/write operations along with the relaxed versions. + + The weakly-ordered machine like ARM needs additional I/O barrier for + device memory read/write access over PCI bus. + By introducing the EAL abstraction for I/O device memory read/write access, + The drivers can access I/O device memory in architecture-agnostic manner. + The relaxed version does not have additional I/O memory barrier, useful in + accessing the device registers of integrated controllers which + implicitly strongly ordered with respect to memory access. + Resolved Issues --------------- -- 2.5.5
