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Patrick Fu 819a716858 vhost: fix async callback return type
The async copy device callbacks are used by async APIs to transfer data
and check completion status. Async APIs return the number of packets
successfully processed to the caller applications and no error
(negative) value is allowed for API return value. Thus, negative return
values from async device callbacks don't have meaningful usage, while
adding overhead in checking the return value validity. This patch change
the callback return values from "int" to "uint32_t" to get aligned with
async API definition.

Fixes: 78639d5456 ("vhost: introduce async enqueue registration API")

Signed-off-by: Patrick Fu <patrick.fu@intel.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2020-07-30 00:41:23 +02:00
.ci ci: reduce examples in static builds 2020-04-17 23:34:08 +02:00
app app/regex: add RegEx test application 2020-07-30 09:13:52 +02:00
buildtools build: remove special versioning for non stable libraries 2020-07-07 12:48:25 +02:00
config crypto/armv8: remove debug option 2020-07-28 22:09:22 +02:00
devtools add python2 deprecation notice 2020-07-21 22:58:18 +02:00
doc doc: describe async API in vhost guide 2020-07-30 00:41:23 +02:00
drivers vdpa/mlx5: fix compatibility with MISC4 2020-07-30 00:41:23 +02:00
examples examples/l3fwd-power: fix updating lcore parameters 2020-07-22 01:44:37 +02:00
kernel kernel/linux: error out on module build failure 2020-05-19 17:59:57 +02:00
lib vhost: fix async callback return type 2020-07-30 00:41:23 +02:00
license eal: move OS-specific sub-directories 2020-03-31 13:08:55 +02:00
mk regex/mlx5: support probing 2020-07-21 19:04:05 +02:00
usertools add python2 deprecation notice 2020-07-21 22:58:18 +02:00
.editorconfig devtools: add EditorConfig file 2020-02-22 21:05:22 +01:00
.gitattributes improve git diff 2016-11-13 15:25:12 +01:00
.gitignore regex/mlx5: introduce driver for BlueField 2 2020-07-21 19:04:05 +02:00
.travis.yml version: 20.08-rc0 2020-05-27 11:37:33 +02:00
ABI_VERSION version: 20.08-rc0 2020-05-27 11:37:33 +02:00
GNUmakefile test: move to app directory 2019-02-26 15:29:27 +01:00
MAINTAINERS app/regex: add RegEx test application 2020-07-30 09:13:52 +02:00
Makefile remove blank lines at end of file 2019-11-26 00:12:08 +01:00
meson_options.txt trace: introduce new subsystem 2020-04-23 15:39:06 +02:00
meson.build build: check AVX512 rather than binutils version 2020-07-05 21:32:40 +02:00
README license: introduce SPDX identifiers 2018-01-04 22:41:38 +01:00
VERSION version: 20.08-rc2 2020-07-22 02:45:20 +02:00

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