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Bruce Richardson dbc9ae665b raw/ioat: fix ring space checks 
When enqueuing a descriptor, when checking that there is at least one
slot free for the current descriptor and a later batch descriptor, we
need to test for both two free and one free, in case the last write
was a batch descriptor which is allowed to use the "spare" slot.

Similarly, when computing the free space in the ring to return to the
user, we need to take account of the same condition, so that we do not
return a "-1" ring space value, by blindly subtracting "2".

Fixes: 245efe544d ("raw/ioat: report status of completed jobs")

Reported-by: Jiayu Hu <jiayu.hu@intel.com>
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Kevin Laatz <kevin.laatz@intel.com>
2021-05-12 20:44:46 +02:00
.ci build: update minimum required Meson version 2021-04-16 18:51:51 +02:00
.github/workflows ci: bump ABI reference version 2021-04-16 14:09:03 +02:00
app app/crypto-perf: check memory allocation 2021-05-12 18:14:19 +02:00
buildtools build: fix default drivers list without Python 2021-05-07 15:41:45 +02:00
config doc: fix Arm SoCs list 2021-05-06 09:41:25 +02:00
devtools doc: remove PDF requirements 2021-05-12 16:52:20 +02:00
doc test/crypto: build block-cipher suite dynamically 2021-05-12 16:17:07 +02:00
drivers raw/ioat: fix ring space checks 2021-05-12 20:44:46 +02:00
examples examples/timer: fix time interval 2021-05-12 16:52:20 +02:00
kernel lib: remove librte_ prefix from directory names 2021-04-21 14:04:09 +02:00
lib vhost: fix sign extension in async packed ring 2021-05-12 10:28:18 +02:00
license lib: remove librte_ prefix from directory names 2021-04-21 14:04:09 +02:00
usertools build: change indentation in infrastructure files 2021-04-21 14:04:09 +02:00
.editorconfig doc: add Meson coding style to contributors guide 2021-04-21 14:04:09 +02:00
.gitattributes
.gitignore
.travis.yml ci: bump ABI reference version 2021-04-16 14:09:03 +02:00
ABI_VERSION version: 21.05-rc0 2021-02-15 11:08:19 +01:00
MAINTAINERS maintainers: update for e1000/igc/ixgbe/i40e 2021-04-29 15:56:57 +02:00
Makefile build: create dummy Makefile 2020-09-07 23:51:57 +02:00
meson_options.txt lib: allow disabling optional libraries 2021-04-21 14:17:29 +02:00
meson.build lib: remove librte_ prefix from directory names 2021-04-21 14:04:09 +02:00
README
VERSION version: 21.05-rc2 2021-05-06 00:31:24 +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