[dpdk-dev] [PATCH 0/3] AF_XDP tx halt fix, IRQ pinning and unaligned chunks
Ciara Loftus
ciara.loftus at intel.com
Thu Sep 19 16:15:17 CEST 2019
This series contains 3 patches for the AF_XDP PMD.
They were originally independent patches but are now rolled into this
series together.
Patch 1: fix Tx halt when no recv packets (Xiaolong Ye)
Previous (v1): http://patches.dpdk.org/patch/59044/
Patch 2: support pinning of IRQs
Previous (v1): http://patches.dpdk.org/patch/58571/
v2:
* Update docs with example usage
* Split configure_irqs into multiple smaller functions
* Use /sys/class/net/<iface>/device/driver to get driver string
* Implement lookup mechanism for /proc/interrupts string formatting
* Use /sys/class/net/<iface> symlink to get pci addr for mlx5
Patch 3: enable support for unaligned umem chunks
Previous (v2): http://patches.dpdk.org/patch/58624/
v3:
* Fix inconsistent reserve/submit for fill and tx queue addrs
* Improve readability by extracting out functions
* Coding style fixes
The performance of the v3 was measured to be within 5% of the previous zero
copy implementation for test cases using a single PMD. For test cases using
multiple PMDs the following performance improvement was measured:
ports nics pinned Δ old zc
2 2 0 95.21%
2 2 1 211.23%
2 1 0 88.36%
2 1 1 122.86%
Ciara Loftus (2):
net/af_xdp: support pinning of IRQs
net/af_xdp: enable support for unaligned umem chunks
Xiaolong Ye (1):
net/af_xdp: fix Tx halt when no recv packets
doc/guides/nics/af_xdp.rst | 17 +-
doc/guides/rel_notes/release_19_11.rst | 11 +
drivers/net/af_xdp/rte_eth_af_xdp.c | 744 ++++++++++++++++++++++---
3 files changed, 685 insertions(+), 87 deletions(-)
--
2.17.1
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