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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, netdev@vger.kernel.org,
	linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
	Kai-Heng Feng <kai.heng.feng@canonical.com>
Subject: [PATCH net-next v3 0/3] r8169: Implement dynamic ASPM mechanism for recent 1.0/2.5Gbps Realtek NICs
Date: Thu, 19 Aug 2021 13:45:39 +0800	[thread overview]
Message-ID: <20210819054542.608745-1-kai.heng.feng@canonical.com> (raw)

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.

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 (3):
  r8169: Implement dynamic ASPM mechanism
  PCI/ASPM: Introduce a new helper to report ASPM support status
  r8169: Enable ASPM for selected NICs

 drivers/net/ethernet/realtek/r8169_main.c | 69 ++++++++++++++++++++---
 drivers/pci/pcie/aspm.c                   | 11 ++++
 include/linux/pci.h                       |  2 +
 3 files changed, 74 insertions(+), 8 deletions(-)

-- 
2.32.0


             reply	other threads:[~2021-08-19  5:46 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-19  5:45 Kai-Heng Feng [this message]
2021-08-19  5:45 ` [PATCH net-next v3 1/3] r8169: Implement dynamic ASPM mechanism Kai-Heng Feng
2021-08-19 11:42   ` Bjorn Helgaas
2021-08-19 15:45     ` Heiner Kallweit
2021-08-20 21:03       ` Bjorn Helgaas
2021-08-24  7:39         ` Kai-Heng Feng
2021-08-24 14:53           ` Bjorn Helgaas
2021-08-27  4:56             ` Kai-Heng Feng
2021-08-19  5:45 ` [PATCH net-next v3 2/3] PCI/ASPM: Introduce a new helper to report ASPM support status Kai-Heng Feng
2021-08-19  5:45 ` [PATCH net-next v3 3/3] r8169: Enable ASPM for selected NICs Kai-Heng Feng
2021-08-19  6:02   ` Heiner Kallweit
2021-08-19  6:50     ` Kai-Heng Feng
2021-08-19  9:56       ` Heiner Kallweit
2021-08-27  6:23         ` Kai-Heng Feng
2021-08-19  6:08 ` [PATCH net-next v3 0/3] r8169: Implement dynamic ASPM mechanism for recent 1.0/2.5Gbps Realtek NICs Heiner Kallweit
2021-08-19  6:19   ` Kai-Heng Feng

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