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David S. Miller 3334129245 Merge branch 'renesas-rswitch-perf'
Yoshihiro Shimoda says:

====================
net: renesas: rswitch: Improve perfromance of TX/RX

This patch series is based on net-next.git / main branch [1]. This patch
series can improve perfromance of TX in a specific condition. The previous code
used "global rate limiter" feature so that this is possible to cause
performance down if we use multiple ports at the same time. To resolve this
issue, use "hardware pause" features of GWCA and COMA. Note that this is not
related to the ethernet PAUSE frames.

< UDP TX by iperf3 >
 before: about 450Mbps on both tsn0 and tsn1
 after:  about 950Mbps on both tsn0 and tsn1

Also, this patch series can improve performance of RX by using
napi_gro_receive().

< TCP RX by iperf >
 before: about 670Mbps on tsn0
 after:  about 840Mbps on tsn0

[1]
The commit e06bd5e3ad ("Merge branch 'followup-fixes-for-the-dwmac-and-altera-lynx-conversion'")

Changes from v3:
https://lore.kernel.org/all/20230607015641.1724057-1-yoshihiro.shimoda.uh@renesas.com/
 - Rebased on the latest net-next.git / main branch.
 - Added Reviewed-by in the patch 2/2. (Maciej, thanks!)
 - Fix typos in the commit description in the patch 2/2.

Changes from v2:
https://lore.kernel.org/all/20230606085558.1708766-1-yoshihiro.shimoda.uh@renesas.com/
 - Rebased on the latest net-next.git / main branch.
 - Added Reviewed-by in the patch 1/2. (Maciej, thanks!)
 - Revise the commit description in the patch 2/2.
 - Add definition to remove magic hardcoded numbers in the patch 2/2.

Changes from v1:
https://lore.kernel.org/all/20230529080840.1156458-1-yoshihiro.shimoda.uh@renesas.com/
 - Rebased on the latest net-next.git / main branch.
 - Use "hardware pause" feature instead of "per-queue limiter" feature.
 - Drop refactaring for "per-queue limiter".
 - Drop dt-bindings update because "hardware pause" doesn't need additional
   clock information.
 - Use napi_gro_receive() to improve RX performance.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2023-06-10 19:49:34 +01:00
arch Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-06-08 11:35:14 -07:00
block block: fix revalidate performance regression 2023-05-29 08:40:32 -06:00
certs KEYS: Add missing function documentation 2023-04-24 16:15:52 +03:00
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-06-08 11:35:14 -07:00
Documentation mlx5-updates-2023-06-06 2023-06-08 19:28:21 -07:00
drivers net: renesas: rswitch: Use hardware pause features 2023-06-10 19:49:18 +01:00
fs splice, net: Fix SPLICE_F_MORE signalling in splice_direct_to_actor() 2023-06-08 19:40:31 -07:00
include net: move gso declarations and functions to their own files 2023-06-10 00:11:41 -07:00
init Objtool changes for v6.4: 2023-04-28 14:02:54 -07:00
io_uring Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-06-08 11:35:14 -07:00
ipc Merge branch 'work.namespace' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2023-02-24 19:20:07 -08:00
kernel Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-06-08 11:35:14 -07:00
lib Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-06-08 11:35:14 -07:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm mm: page_table_check: Ensure user pages are not slab pages 2023-05-29 16:14:28 +01:00
net net: move gso declarations and functions to their own files 2023-06-10 00:11:41 -07:00
rust Rust changes for v6.4 2023-04-30 11:20:22 -07:00
samples Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-05-25 19:57:39 -07:00
scripts bpf-next-for-netdev 2023-05-16 19:50:05 -07:00
security selinux: don't use make's grouped targets feature yet 2023-06-01 13:56:13 -04:00
sound ALSA: hda/realtek: Enable headset onLenovo M70/M90 2023-05-24 14:18:59 +02:00
tools tools: ynl-gen: support / skip pads on the way to kernel 2023-06-09 14:40:31 -07:00
usr initramfs: Check negative timestamp to prevent broken cpio archive 2023-04-16 17:37:01 +09:00
virt KVM: Fix vcpu_array[0] races 2023-05-19 13:56:26 -04:00
.clang-format cxl for v6.4 2023-04-30 11:51:51 -07:00
.cocciconfig
.get_maintainer.ignore
.gitattributes .gitattributes: use 'dts' diff driver for *.dtso files 2023-02-26 15:28:23 +09:00
.gitignore linux-kselftest-kunit-6.4-rc1 2023-04-24 12:31:32 -07:00
.mailmap mailmap: add entries for Nikolay Aleksandrov 2023-05-17 09:35:05 +01:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING
CREDITS MAINTAINERS: sctp: move Neil to CREDITS 2023-05-12 08:51:32 +01:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig
MAINTAINERS Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-06-08 11:35:14 -07:00
Makefile Linux 6.4-rc5 2023-06-04 14:04:27 -04:00
README

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.