Re: [PATCH net-next v14 0/5] ethtool: provide the dim profile fine-tuning channel

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Gentle ping.

Thanks.

在 2024/6/3 下午11:47, Heng Qi 写道:
The NetDIM library provides excellent acceleration for many modern
network cards. However, the default profiles of DIM limits its maximum
capabilities for different NICs, so providing a way which the NIC can
be custom configured is necessary.

Currently, the way is based on the commonly used "ethtool -C".

Please review, thank you very much!

Changelog
=====
v13->v14:
   - Make DIMLIB dependent on NET (patch 2/5).

v12->v13:
   - Rebase net-next to fix the one-line conflict.
   - Update tiny comments.
   - Config ETHTOOL_NETLINK to select DIMLIB.

v11->v12:
   - Remove the use of IS_ENABLED(DIMLIB).
   - Update Simon's htmldoc hint.

v10->v11:
   - Fix and clean up some issues from Kuba, thanks.
   - Rebase net-next/main

v9->v10:
   - Collect dim related flags/mode/work into one place.
   - Use rx_profile + tx_profile instead of four profiles.
   - Add several helps.
   - Update commit logs.

v8->v9:
   - Fix the compilation error of conflicting names of rx_profile in
     dim.h and ice driver: in dim.h, rx_profile is replaced with
     dim_rx_profile. So does tx_profile.

v7->v8:
   - Use kmemdup() instead of kzalloc()/memcpy() in dev_dim_profile_init().

v6->v7:
   - A new wrapper struct pointer is used in struct net_device.
   - Add IS_ENABLED(CONFIG_DIMLIB) to avoid compiler warnings.
   - Profile fields changed from u16 to u32.

v5->v6:
   - Place the profile in netdevice to bypass the driver.
     The interaction code of ethtool <-> kernel has not changed at all,
     only the interaction part of kernel <-> driver has changed.

v4->v5:
   - Update some snippets from Kuba.

v3->v4:
   - Some tiny updates and patch 1 only add a new comment.

v2->v3:
   - Break up the attributes to avoid the use of raw c structs.
   - Use per-device profile instead of global profile in the driver.

v1->v2:
   - Use ethtool tool instead of net-sysfs.

Heng Qi (5):
   linux/dim: move useful macros to .h file
   dim: make DIMLIB dependent on NET
   ethtool: provide customized dim profile management
   dim: add new interfaces for initialization and getting results
   virtio-net: support dim profile fine-tuning

  Documentation/netlink/specs/ethtool.yaml     |  31 +++
  Documentation/networking/ethtool-netlink.rst |   4 +
  Documentation/networking/net_dim.rst         |  42 +++
  drivers/net/virtio_net.c                     |  54 +++-
  drivers/soc/fsl/Kconfig                      |   2 +-
  include/linux/dim.h                          | 113 ++++++++
  include/linux/ethtool.h                      |   4 +-
  include/linux/netdevice.h                    |   3 +
  include/uapi/linux/ethtool_netlink.h         |  22 ++
  lib/Kconfig                                  |   1 +
  lib/dim/net_dim.c                            | 144 +++++++++-
  net/Kconfig                                  |   1 +
  net/ethtool/coalesce.c                       | 263 ++++++++++++++++++-
  13 files changed, 667 insertions(+), 17 deletions(-)





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