[PATCH net-next V2 0/3] net/mlx5: ICM page management in VHCA_ID mode

[Tariq Toukan]

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.

---

V2:
- Cache vhca_id to type mapping to provide lockless lookup.
- Store the resolved type on each fw_page at allocation time so reclaim
  and release paths read it directly without any lookup.
- Reorder erase old key and insert new key on migrate function.
- Fixed comment on mlx5_satisfy_startup_pages.

V1: https://lore.kernel.org/all/20260501044156.260875-1-tariqt@xxxxxxxxxx/

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 |  49 +++-
 .../net/ethernet/mellanox/mlx5/core/eswitch.h |   8 +
 .../mellanox/mlx5/core/eswitch_offloads.c     |  14 +-
 .../net/ethernet/mellanox/mlx5/core/main.c    |  10 +-
 .../ethernet/mellanox/mlx5/core/pagealloc.c   | 250 +++++++++++++-----
 include/linux/mlx5/driver.h                   |   9 +
 8 files changed, 304 insertions(+), 77 deletions(-)


base-commit: 7e0cccae6b45b12eaf71fc3ab8eb133bb50b28ad
-- 
2.44.0