[PATCH net-next 0/5] net/mlx5e: improve RSS indirection table sizing and resizing
From: Tariq Toukan
Date: Mon May 11 2026 - 14:02:12 EST
Hi,
This series by Yael improves mlx5e RSS indirection table handling around
channel count changes and large RSS configurations.
The series:
* removes the XOR8-specific channel count limitation,
* advertises the maximum supported RSS indirection table size,
* fixes resizing of non-default RSS contexts,
* allows resizing configured default RSS contexts during channel
changes,
* and increases the default RSS spread factor from 2x to 4x to improve
traffic distribution for large channel counts.
Together, these changes make RSS table sizing more flexible and robust,
while improving load balancing behavior on large systems.
Thanks,
Tariq
Yael Chemla (5):
net/mlx5e: remove channel count limit for XOR8 RSS hash
net/mlx5e: advertise max RSS indirection table size to ethtool
net/mlx5e: resize non-default RSS indirection tables on channel change
net/mlx5e: resize configured default RSS context table on channel
change
net/mlx5e: increase RSS indirection table spread factor
.../net/ethernet/mellanox/mlx5/core/en/rqt.c | 9 --
.../net/ethernet/mellanox/mlx5/core/en/rqt.h | 2 +-
.../net/ethernet/mellanox/mlx5/core/en/rss.c | 29 ++++-
.../net/ethernet/mellanox/mlx5/core/en/rss.h | 6 +-
.../ethernet/mellanox/mlx5/core/en/rx_res.c | 40 +++++--
.../ethernet/mellanox/mlx5/core/en/rx_res.h | 4 +-
.../ethernet/mellanox/mlx5/core/en_ethtool.c | 106 ++++++++----------
.../net/ethernet/mellanox/mlx5/core/en_main.c | 9 +-
8 files changed, 112 insertions(+), 93 deletions(-)
base-commit: 63751099502d10f0aa6bb35273e56c5800cc4e3a
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2.44.0