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Elena Agostini 9b8cae4d99 gpudev: use CPU mapping in communication list 
rte_gpu_mem_cpu_map() exposes a GPU memory area to the CPU.
In gpudev communication list this is useful to store the
status flag.

A communication list status flag allocated on GPU memory
and mapped for CPU visibility can be updated by CPU and polled
by a GPU workload.

The polling operation is more frequent than the CPU update operation.
Having the status flag in GPU memory reduces the GPU workload polling
latency.

If CPU mapping feature is not enabled, status flag resides in
CPU memory registered so it's visible from the GPU.

To facilitate the interaction with the status flag, this patch
provides also the set/get functions for it.

Signed-off-by: Elena Agostini <eagostini@nvidia.com>
2022-02-22 20:08:52 +01:00
.ci buildtools/chkincs: test headers for C++ compatibility 2022-02-12 14:26:21 +01:00
.github/workflows buildtools/chkincs: test headers for C++ compatibility 2022-02-12 14:26:21 +01:00
app gpudev: use CPU mapping in communication list 2022-02-22 20:08:52 +01:00
buildtools buildtools/chkincs: check missing C++ guards 2022-02-22 15:26:15 +01:00
config config: align mempool elements to 128 bytes on CN10K 2022-02-12 15:13:24 +01:00
devtools devtools: add IWYU script to remove unused includes 2022-02-22 13:10:39 +01:00
doc gpudev: use CPU mapping in communication list 2022-02-22 20:08:52 +01:00
drivers build: make ring mempool driver mandatory 2022-02-22 15:38:19 +01:00
examples lib: remove unneeded header includes 2022-02-22 13:10:39 +01:00
kernel kni: fix ioctl signature 2022-02-02 20:55:05 +01:00
lib gpudev: use CPU mapping in communication list 2022-02-22 20:08:52 +01:00
license lib: remove librte_ prefix from directory names 2021-04-21 14:04:09 +02:00
usertools support systemd service convention for runtime directory 2022-02-09 19:12:40 +01:00
.editorconfig devtools: clarify that lines up to 100 characters are ok 2021-11-25 11:51:24 +01:00
.gitattributes improve git diff 2016-11-13 15:25:12 +01:00
.gitignore doc: add eventdev feature matrices 2021-11-26 16:29:25 +01:00
.travis.yml version: 22.03-rc0 2021-12-02 21:36:19 +01:00
ABI_VERSION version: 22.03-rc0 2021-12-02 21:36:19 +01:00
MAINTAINERS devtools: add IWYU script to remove unused includes 2022-02-22 13:10:39 +01:00
Makefile build: create dummy Makefile 2020-09-07 23:51:57 +02:00
meson_options.txt config: add option for atomic mbuf reference counting 2021-10-25 17:53:30 +02:00
meson.build build: remove deprecated Meson functions 2022-02-02 18:46:53 +01:00
README license: introduce SPDX identifiers 2018-01-04 22:41:38 +01:00
VERSION version: 22.03-rc1 2022-02-14 00:11:35 +01:00

README 

DPDK is a set of libraries and drivers for fast packet processing.
It supports many processor architectures and both FreeBSD and Linux.

The DPDK uses the Open Source BSD-3-Clause license for the core libraries
and drivers. The kernel components are GPL-2.0 licensed.

Please check the doc directory for release notes,
API documentation, and sample application information.

For questions and usage discussions, subscribe to: users@dpdk.org
Report bugs and issues to the development mailing list: dev@dpdk.org