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David S. Miller 23cfa4d4aa Merge branch 'veth-gro'
Paolo Abeni  says:

====================
veth: allow GRO even without XDP

This series allows the user-space to enable GRO/NAPI on a veth
device even without attaching an XDP program.

It does not change the default veth behavior (no NAPI, no GRO),
except that the GRO feature bit on top of this series will be
effectively off by default on veth devices. Note that currently
the GRO bit is on by default, but GRO never takes place in
absence of XDP.

On top of this series, setting the GRO feature bit enables NAPI
and allows the GRO to take place. The TSO features on the peer
device are preserved.

The main goal is improving UDP forwarding performances for
containers in a typical virtual network setup:

(container) veth -> veth peer -> bridge/ovs -> vxlan -> NIC

Enabling the NAPI threaded mode, GRO the NETIF_F_GRO_UDP_FWD
feature on the veth peer improves the UDP stream performance
with not void netfilter configuration by 2x factor with no
measurable overhead for TCP traffic: some heuristic ensures
that TCP will not go through the additional NAPI/GRO layer.

Some self-tests are added to check the expected behavior in
the default configuration, with XDP and with plain GRO enabled.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-11 16:39:28 -07:00
arch Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-04-09 20:48:35 -07:00
block block: remove the unused RQF_ALLOCED flag 2021-04-02 11:18:31 -06:00
certs certs: Replace K{U,G}IDT_INIT() with GLOBAL_ROOT_{U,G}ID 2021-01-21 16:16:10 +00:00
crypto crypto: mips/poly1305 - enable for all MIPS processors 2021-03-08 11:52:17 +01:00
Documentation ethtool: Allow network drivers to dump arbitrary EEPROM data 2021-04-11 16:34:56 -07:00
drivers veth: refine napi usage 2021-04-11 16:39:28 -07:00
fs Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-04-09 20:48:35 -07:00
include phy: sfp: add netlink SFP support to generic SFP code 2021-04-11 16:34:56 -07:00
init Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-03-25 15:31:22 -07:00
ipc fs: make helpers idmap mount aware 2021-01-24 14:27:20 +01:00
kernel Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-04-09 20:48:35 -07:00
lib Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-04-09 20:48:35 -07:00
LICENSES LICENSES: Add the CC-BY-4.0 license 2020-12-08 10:33:27 -07:00
mm mm: fix race by making init_zero_pfn() early_initcall 2021-03-30 09:46:12 -07:00
net ethtool: wire in generic SFP module access 2021-04-11 16:34:56 -07:00
samples samples: bpf: Do not unload prog within xdpsock 2021-03-30 09:24:39 -07:00
scripts Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-04-09 20:48:35 -07:00
security Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-04-09 20:48:35 -07:00
sound sound fixes for 5.12-rc7 2021-04-08 09:01:30 -07:00
tools self-tests: add veth tests 2021-04-11 16:39:28 -07:00
usr Kbuild updates for v5.12 2021-02-25 10:17:31 -08:00
virt KVM: x86/mmu: Consider the hva in mmu_notifier retry 2021-02-22 13:16:53 -05:00
.clang-format cxl for 5.12 2021-02-24 09:38:36 -08:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore clang-lto series for v5.12-rc1 2021-02-23 09:28:51 -08:00
.mailmap Merge branch 'akpm' (patches from Andrew) 2021-03-25 11:43:43 -07:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS treewide: Miguel has moved 2021-02-26 09:41:03 -08:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-04-09 20:48:35 -07:00
Makefile Linux 5.12-rc6 2021-04-04 14:15:36 -07:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.