[PATCH net-next 0/3] net/mlx5: ICM page management in VHCA_ID mode

Tariq Toukan
2026-05-01T04:42:24Z

Hi,

Find detailed description by Moshe below.

Regards,
Tariq

This series adds driver support for the VHCA_ID page management mode.
When firmware and driver support this mode, ICM (Interconnect Context
Memory) page management uses the device vhca_id as the function
identifier in MANAGE_PAGES, QUERY_PAGES, and page request events instead
of the legacy function_id + ec_function pair.

Background
Firmware can operate page management in two modes:
FUNC_ID mode (current): Function identity is (function_id, ec_function).
This remains the default and is used for boot pages and when the new
mode capability is not set.
VHCA_ID mode (new): Function identity is vhca_id only; ec_function is
ignored. This aligns page management with the vhca_id-based model used
by other firmware commands and simplifies identification on SmartNIC and
multi-function setups.

Moshe Shemesh (3):
net/mlx5: Relax capability check for eswitch query paths
net/mlx5: Make debugfs page counters by function type dynamic
net/mlx5: Add VHCA_ID page management mode support

.../net/ethernet/mellanox/mlx5/core/debugfs.c | 39 ++-
.../ethernet/mellanox/mlx5/core/esw/ipsec.c | 2 +-
.../net/ethernet/mellanox/mlx5/core/eswitch.c | 48 +++-
.../net/ethernet/mellanox/mlx5/core/eswitch.h | 7 +
.../mellanox/mlx5/core/eswitch_offloads.c | 14 +-
.../net/ethernet/mellanox/mlx5/core/main.c | 10 +-
.../ethernet/mellanox/mlx5/core/pagealloc.c | 226 ++++++++++++++----
include/linux/mlx5/driver.h | 9 +
8 files changed, 289 insertions(+), 66 deletions(-)

base-commit: 4e37987362bcac8909f2d4b4458f3aa645e41641
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2.44.0