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, interaction with the driver is still based on the commonly used "ethtool -C". The driver declares its supported parameters based on .supported_coalesce_params, and implements driver-related custom restrictions in .set_coalesce and .get_coalesce. Please review, thank you very much! Changelog ===== 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 V1 link: https://lore.kernel.org/all/1710421773-61277-1-git-send-email-hengqi@xxxxxxxxxxxxxxxxx/#r Heng Qi (4): ethtool: provide customized dim profile management linux/dim: move profiles from .c to .h file virtio-net: refactor dim initialization/destruction virtio-net: support dim profile fine-tuning Documentation/netlink/specs/ethtool.yaml | 29 +++++ Documentation/networking/ethtool-netlink.rst | 8 ++ drivers/net/virtio_net.c | 81 +++++++++++--- include/linux/dim.h | 45 ++++++++ include/linux/ethtool.h | 16 ++- include/uapi/linux/ethtool_netlink.h | 24 ++++ lib/dim/net_dim.c | 44 -------- net/ethtool/coalesce.c | 160 ++++++++++++++++++++++++++- 8 files changed, 347 insertions(+), 60 deletions(-) -- 1.8.3.1
