netdev - [PATCH net-next v3 0/5] Symmetric OR-XOR RSS hash

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Message-ID: <20250216182453.226325-1-gal@nvidia.com>
Date: Sun, 16 Feb 2025 20:24:48 +0200
From: Gal Pressman <gal@...dia.com>
To: "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>
CC: <netdev@...r.kernel.org>, Eric Dumazet <edumazet@...gle.com>, Paolo Abeni
	<pabeni@...hat.com>, Simon Horman <horms@...nel.org>, Jonathan Corbet
	<corbet@....net>, Tony Nguyen <anthony.l.nguyen@...el.com>, Przemek Kitszel
	<przemyslaw.kitszel@...el.com>, Andrew Lunn <andrew+netdev@...n.ch>, "Tariq
 Toukan" <tariqt@...dia.com>, Edward Cree <ecree.xilinx@...il.com>, Ahmed Zaki
	<ahmed.zaki@...el.com>, <linux-doc@...r.kernel.org>, Gal Pressman
	<gal@...dia.com>
Subject: [PATCH net-next v3 0/5] Symmetric OR-XOR RSS hash

Add support for a new type of input_xfrm: Symmetric OR-XOR.
Symmetric OR-XOR performs hash as follows:
(SRC_IP | DST_IP, SRC_IP ^ DST_IP, SRC_PORT | DST_PORT, SRC_PORT ^ DST_PORT)

Configuration is done through ethtool -x/X command.
For mlx5, the default is already symmetric hash, this patch now exposes
this to userspace and allows enabling/disabling of the feature.

Changelog -
v2->v3: https://lore.kernel.org/netdev/20250205135341.542720-1-gal@nvidia.com/
* Reorder fields in ethtool_ops (Jakub)
* Add a selftest (Jakub)

v1->v2: https://lore.kernel.org/all/20250203150039.519301-1-gal@nvidia.com/
* Fix wording in comments (Edward)

Thanks,
Gal

Gal Pressman (5):
  ethtool: Symmetric OR-XOR RSS hash
  net/mlx5e: Symmetric OR-XOR RSS hash control
  selftests: drv-net: Make rand_port() get a port more reliably
  selftests: drv-net: Introduce a function that checks whether a port is
    available on remote host
  selftests: drv-net-hw: Add a test for symmetric RSS hash

 Documentation/networking/ethtool-netlink.rst  |  2 +-
 Documentation/networking/scaling.rst          | 14 +++-
 .../net/ethernet/intel/iavf/iavf_ethtool.c    |  2 +-
 drivers/net/ethernet/intel/ice/ice_ethtool.c  |  2 +-
 .../net/ethernet/mellanox/mlx5/core/en/rss.c  | 13 +++-
 .../net/ethernet/mellanox/mlx5/core/en/rss.h  |  4 +-
 .../ethernet/mellanox/mlx5/core/en/rx_res.c   | 11 +--
 .../ethernet/mellanox/mlx5/core/en/rx_res.h   |  5 +-
 .../net/ethernet/mellanox/mlx5/core/en/tir.c  |  2 +-
 .../net/ethernet/mellanox/mlx5/core/en/tir.h  |  1 +
 .../ethernet/mellanox/mlx5/core/en_ethtool.c  | 17 +++-
 include/linux/ethtool.h                       |  5 +-
 include/uapi/linux/ethtool.h                  |  4 +
 net/ethtool/ioctl.c                           |  8 +-
 .../testing/selftests/drivers/net/hw/Makefile |  1 +
 .../drivers/net/hw/rss_input_xfrm.py          | 77 +++++++++++++++++++
 .../selftests/drivers/net/lib/py/load.py      |  7 +-
 tools/testing/selftests/net/lib/py/utils.py   | 22 +++---
 18 files changed, 155 insertions(+), 42 deletions(-)
 create mode 100755 tools/testing/selftests/drivers/net/hw/rss_input_xfrm.py

-- 
2.40.1