[PATCH net-next v3 0/7] net/mlx5: Memory optimizations

Shay Drory
2021-12-08T14:17:44Z

This series provides knobs which will enable users to
minimize memory consumption of mlx5 Functions (PF/VF/SF).
mlx5 exposes two new generic devlink params for EQ size
configuration and uses devlink generic param max_macs.

Patches summary:
- Patch-1 Introduce log_max_current_uc_list_wr_supported bit
- Patches-2-3 Provides I/O EQ size param which enables to save
up to 128KB.
- Patches-4-5 Provides event EQ size param which enables to save
up to 512KB.
- Patch-6 Clarify max_macs param.
- Patch-7 Provides max_macs param which enables to save up to 70KB

In total, this series can save up to 700KB per Function.

---
changelog:
v2->v3:
- change type of EQ size param to u32 per Jiri suggestion.
- separate ifc changes to new patch
v1->v2:
- convert io_eq_size and event_eq_size from devlink_resources to
generic devlink_params

Shay Drory (7):
net/mlx5: Introduce log_max_current_uc_list_wr_supported bit
devlink: Add new "io_eq_size" generic device param
net/mlx5: Let user configure io_eq_size param
devlink: Add new "event_eq_size" generic device param
net/mlx5: Let user configure event_eq_size param
devlink: Clarifies max_macs generic devlink param
net/mlx5: Let user configure max_macs generic param

.../networking/devlink/devlink-params.rst | 12 ++-
Documentation/networking/devlink/mlx5.rst | 10 +++
.../net/ethernet/mellanox/mlx5/core/devlink.c | 88 +++++++++++++++++++
drivers/net/ethernet/mellanox/mlx5/core/eq.c | 34 ++++++-
.../net/ethernet/mellanox/mlx5/core/main.c | 21 +++++
include/linux/mlx5/mlx5_ifc.h | 2 +-
include/net/devlink.h | 8 ++
net/core/devlink.c | 10 +++
8 files changed, 180 insertions(+), 5 deletions(-)

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2.21.3