From: Kai-Heng Feng <kai.heng.feng@canonical.com>
To: hkallweit1@gmail.com, nic_swsd@realtek.com, bhelgaas@google.com
Cc: davem@davemloft.net, kuba@kernel.org, anthony.wong@canonical.com,
netdev@vger.kernel.org, linux-pci@vger.kernel.org,
linux-kernel@vger.kernel.org,
Kai-Heng Feng <kai.heng.feng@canonical.com>
Subject: [RFC] [PATCH net-next v4 0/2] r8169: Implement dynamic ASPM mechanism for recent 1.0/2.5Gbps Realtek NICs
Date: Sat, 28 Aug 2021 01:14:50 +0800 [thread overview]
Message-ID: <20210827171452.217123-1-kai.heng.feng@canonical.com> (raw)
The purpose of the series is to get comments and reviews so we can merge
and test the series in downstream kernel.
The latest Realtek vendor driver and its Windows driver implements a
feature called "dynamic ASPM" which can improve performance on it's
ethernet NICs.
Heiner Kallweit pointed out the potential root cause can be that the
buffer is to small for its ASPM exit latency.
So bring the dynamic ASPM to r8169 so we can have both nice performance
and powersaving at the same time.
For the slow/fast alternating traffic pattern, we'll need some real
world test to know if we need to lower the dynamic ASPM interval.
v3:
https://lore.kernel.org/netdev/20210819054542.608745-1-kai.heng.feng@canonical.com/
v2:
https://lore.kernel.org/netdev/20210812155341.817031-1-kai.heng.feng@canonical.com/
v1:
https://lore.kernel.org/netdev/20210803152823.515849-1-kai.heng.feng@canonical.com/
Kai-Heng Feng (2):
PCI/ASPM: Introduce a new helper to report ASPM capability
r8169: Implement dynamic ASPM mechanism
drivers/net/ethernet/realtek/r8169_main.c | 77 ++++++++++++++++++++---
drivers/pci/pcie/aspm.c | 11 ++++
include/linux/pci.h | 2 +
3 files changed, 82 insertions(+), 8 deletions(-)
--
2.32.0
next reply other threads:[~2021-08-27 17:15 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-27 17:14 Kai-Heng Feng [this message]
2021-08-27 17:14 ` [RFC] [PATCH net-next v4 1/2] PCI/ASPM: Introduce a new helper to report ASPM capability Kai-Heng Feng
2021-08-27 17:14 ` [RFC] [PATCH net-next v4] [PATCH 2/2] r8169: Implement dynamic ASPM mechanism Kai-Heng Feng
2021-08-30 18:09 ` Bjorn Helgaas
2021-09-03 15:56 ` Kai-Heng Feng
2021-09-03 20:00 ` Heiner Kallweit
2021-09-06 15:10 ` Kai-Heng Feng
2021-09-06 15:34 ` Heiner Kallweit
2021-09-07 4:58 ` Kai-Heng Feng
2021-09-07 6:03 ` Heiner Kallweit
2021-09-15 15:54 ` Kai-Heng Feng
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210827171452.217123-1-kai.heng.feng@canonical.com \
--to=kai.heng.feng@canonical.com \
--cc=anthony.wong@canonical.com \
--cc=bhelgaas@google.com \
--cc=davem@davemloft.net \
--cc=hkallweit1@gmail.com \
--cc=kuba@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pci@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=nic_swsd@realtek.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).