linux-kernel - [PATCH net-next v4 0/7] net/mlx5: Memory optimizations

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Message-Id: <20211209100929.28115-1-shayd@nvidia.com>
Date:   Thu,  9 Dec 2021 12:09:22 +0200
From:   Shay Drory <shayd@...dia.com>
To:     "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     jiri@...dia.com, saeedm@...dia.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Shay Drory <shayd@...dia.com>
Subject: [PATCH net-next v4 0/7] net/mlx5: Memory optimizations

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:
v3->v4:
- align devlink_param doc of EQ size params to u32.
v2->v3:
- change type of EQ size params 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(-)

-- 
2.21.3