From 3c9d2bcc098bcf918c9fab0f4cdd84a21d2ba38e Mon Sep 17 00:00:00 2001 From: Jerin Jacob Date: Thu, 19 Jan 2017 11:13:21 +0530 Subject: [PATCH] doc: add I/O device memory access API to release notes Signed-off-by: Jerin Jacob Acked-by: John McNamara --- 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 0ecd7207d5..9b72d58168 100644 --- a/doc/guides/rel_notes/release_17_02.rst +++ b/doc/guides/rel_notes/release_17_02.rst @@ -38,6 +38,19 @@ New Features Also, make sure to start the actual text at the margin. ========================================================= +* **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. + * **Added generic flow API (rte_flow).** This API provides a generic means to configure hardware to match specific -- 2.20.1