Hi,
This series adds devlink per-port resource support.
See detailed description by Or below [1].
Regards,
Tariq
[1]
Currently, devlink resources are only available at the device level.
However, some resources are inherently per-port, such as the maximum
number of subfunctions (SFs) that can be created on a specific PF port.
This limitation prevents user space from obtaining accurate per-port
capacity information.
This series adds infrastructure for per-port resources in devlink core
and implements it in the mlx5 driver to expose the max_SFs resource
on PF devlink ports.
Patch #1 adds devlink core infrastructure for per-port resources
Patch #2 registers SF resource on PF port representor in mlx5
support dump
Patch #3 adds port resource registration to netdevsim for testing
Patch #4 adds selftest for devlink port resources
Patch #5 adds documentation for port-level resources
With this series (and upcoming userspace patches), users can query
per-port resources:
$ devlink port resource show pci/0000:03:00.0/196608
pci/0000:03:00.0/196608:
name max_SFs size 20 unit entry
$ devlink port resource show
pci/0000:03:00.0/196608:
name max_SFs size 20 unit entry
pci/0000:03:00.1/262144:
name max_SFs size 20 unit entry
Or Har-Toov (5):
devlink: Add port-level resource infrastructure
net/mlx5: Register SF resource on PF port representor
netdevsim: Add devlink port resource registration
selftest: netdevsim: Add devlink port resource test
devlink: Document port-level resources
Documentation/netlink/specs/devlink.yaml | 23 ++
.../networking/devlink/devlink-resource.rst | 36 +++
.../net/ethernet/mellanox/mlx5/core/devlink.h | 4 +
.../mellanox/mlx5/core/esw/devlink_port.c | 37 +++
drivers/net/netdevsim/dev.c | 22 +-
drivers/net/netdevsim/netdevsim.h | 4 +
include/net/devlink.h | 8 +
include/uapi/linux/devlink.h | 2 +
net/devlink/netlink.c | 2 +-
net/devlink/netlink_gen.c | 32 +-
net/devlink/netlink_gen.h | 6 +-
net/devlink/port.c | 3 +
net/devlink/resource.c | 282 ++++++++++++++----
.../drivers/net/netdevsim/devlink.sh | 32 +-
14 files changed, 434 insertions(+), 59 deletions(-)
base-commit: a22f57757f7e88c890499265c383ecb32900b645
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2.40.1
