This patchset introduces a new dedicated ethtool_ops callback, .get_rxrings, which enables drivers to provide the number of RX rings directly, improving efficiency and clarity in RX ring queries and RSS configuration.
Number of drivers no implement .get_rxnfc just to report the ring count, so, having a proper callback makes sense and simplify .get_rxnfc. This has been suggested by Jakub, and follow the same idea as RXFH driver callbacks [1]. This also port virtio_net to this new callback. Once there is consensus on this approach, I can start moving the drivers to this new callback. Link: https://lore.kernel.org/all/20250611145949.2674086-1-k...@kernel.org/ [1] Suggested-by: Jakub Kicinski <k...@kernel.org> Signed-off-by: Breno Leitao <lei...@debian.org> --- Breno Leitao (7): net: ethtool: pass the num of RX rings directly to ethtool_copy_validate_indir net: ethtool: add support for ETHTOOL_GRXRINGS ioctl net: ethtool: remove the duplicated handling from ethtool_get_rxrings net: ethtool: add get_rxrings callback to optimize RX ring queries net: ethtool: update set_rxfh to use get_num_rxrings helper net: ethtool: update set_rxfh_indir to use get_num_rxrings helper net: virtio_net: add get_rxrings ethtool callback for RX ring queries drivers/net/virtio_net.c | 15 ++-------- include/linux/ethtool.h | 1 + net/ethtool/ioctl.c | 75 ++++++++++++++++++++++++++++++++++++++---------- 3 files changed, 64 insertions(+), 27 deletions(-) --- base-commit: 16c610162d1f1c332209de1c91ffb09b659bb65d change-id: 20250905-gxrings-a2ec22ee2aec Best regards, -- Breno Leitao <lei...@debian.org>
