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Cheng Jiang 2e3f1ab0d8 vhost: fix async packed ring batch datapath 
We assume that in the sync path, if there is no buffer wrap in the
avail descriptors fetched in a batch, there is no buffer wrap in the
used descriptors which need to be written back in this batch, but
this assumption is wrong in the async path since there are inflight
descriptors which are processed by the DMA device.

This patch refactors the batch copy code and adds used ring buffer
wrap check as a batch copy condition to fix this issue.

Fixes: 873e8dad6f ("vhost: support packed ring in async datapath")
Cc: stable@dpdk.org

Signed-off-by: Cheng Jiang <cheng1.jiang@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2021-07-21 07:56:13 +02:00
.ci build: update minimum required Meson version 2021-04-16 18:51:51 +02:00
.github/workflows eal: handle compressed firmware 2021-07-07 16:41:53 +02:00
app test/crypto: check raw API support 2021-07-21 15:12:02 +02:00
buildtools build: support drivers symlink on Windows 2021-07-09 17:22:42 +02:00
config config/arm: fix SVE build with GCC 8.3 2021-07-09 22:25:24 +02:00
devtools build: use platform for generic and native builds 2021-07-09 14:50:54 +02:00
doc crypto/mvsam: support IPsec offload 2021-07-21 15:08:52 +02:00
drivers crypto/mvsam: support IPsec offload 2021-07-21 15:08:52 +02:00
examples examples/ipsec-secgw: support inline UDP encapsulation 2021-07-20 10:32:05 +02:00
kernel kni: fix crash on userspace VA for segmented packets 2021-06-24 10:04:25 +02:00
lib vhost: fix async packed ring batch datapath 2021-07-21 07:56:13 +02:00
license lib: remove librte_ prefix from directory names 2021-04-21 14:04:09 +02:00
usertools raw/cnxk_bphy: add baseband PHY skeleton driver 2021-07-05 23:08:11 +02:00
.editorconfig doc: add Meson coding style to contributors guide 2021-04-21 14:04:09 +02:00
.gitattributes improve git diff 2016-11-13 15:25:12 +01:00
.gitignore doc: add flow API features tables 2021-05-18 19:06:56 +02:00
.travis.yml eal: handle compressed firmware 2021-07-07 16:41:53 +02:00
ABI_VERSION version: 21.08-rc0 2021-05-21 20:07:04 +02:00
MAINTAINERS crypto/mlx5: introduce Mellanox crypto driver 2021-07-20 21:45:58 +02:00
Makefile build: create dummy Makefile 2020-09-07 23:51:57 +02:00
meson_options.txt build: use platform for generic and native builds 2021-07-09 14:50:54 +02:00
meson.build lib: remove librte_ prefix from directory names 2021-04-21 14:04:09 +02:00
README license: introduce SPDX identifiers 2018-01-04 22:41:38 +01:00
VERSION version: 21.08-rc1 2021-07-10 12:01:52 +02:00

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