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Robin Zhang cd3b124955 net/iavf: enable interrupt polling 
For VF hosted by Intel 700 series NICs, internal Rx interrupt and adminq
interrupt share the same source, that cause a lot CPU cycles be wasted on
interrupt handler on Rx path.

The patch disable PCI interrupt and remove the interrupt handler, replace
it with a low frequency(50ms) interrupt polling daemon which is
implemented by registering an alarm callback periodically.

The virtual channel capability bit VIRTCHNL_VF_OFFLOAD_WB_ON_ITR can be
used to negotiate if iavf PMD needs to enable background alarm or not, so
ideally this change will not impact the case hosted by Intel 800 series
NICS.

This patch implements the same logic with an early i40e commit:
commit 864a800d70 ("net/i40e: remove VF interrupt handler")

Signed-off-by: Robin Zhang <robinx.zhang@intel.com>
Acked-by: Pallavi Kadam <pallavi.kadam@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
2021-09-22 09:27:12 +02:00
.ci build: update minimum required Meson version 2021-04-16 18:51:51 +02:00
.github/workflows version: 21.11-rc0 2021-08-17 08:37:52 +02:00
app ethdev: add IPv4 and L4 checksum RSS offload types 2021-09-21 10:25:42 +02:00
buildtools build: add optional NUMA and CPU counts detection 2021-09-16 09:43:28 +02:00
config config/arm: make N2 crypto an optional feature 2021-09-16 18:12:46 +02:00
devtools version: 21.11-rc0 2021-08-17 08:37:52 +02:00
doc net/ice: support 1PPS 2021-09-22 08:47:42 +02:00
drivers net/iavf: enable interrupt polling 2021-09-22 09:27:12 +02:00
examples examples/ipsec-secgw: clear soft expiry configuration 2021-09-28 14:16:37 +02:00
kernel kni: fix crash on userspace VA for segmented packets 2021-06-24 10:04:25 +02:00
lib ethdev: add IPv4 and L4 checksum RSS offload types 2021-09-21 10:25:42 +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
.gitignore doc: add flow API features tables 2021-05-18 19:06:56 +02:00
.travis.yml version: 21.11-rc0 2021-08-17 08:37:52 +02:00
ABI_VERSION version: 21.11-rc0 2021-08-17 08:37:52 +02:00
MAINTAINERS maintainers: sort NXP raw drivers 2021-09-22 21:50:54 +02:00
Makefile build: create dummy Makefile 2020-09-07 23:51:57 +02:00
meson_options.txt build: add optional NUMA and CPU counts detection 2021-09-16 09:43:28 +02:00
meson.build lib: remove librte_ prefix from directory names 2021-04-21 14:04:09 +02:00
README
VERSION version: 21.11-rc0 2021-08-17 08:37:52 +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