Re: [PATCH iproute2-next 0/7] devlink: add per-port resource support

[David Ahern <dsahern@kernel.org>]

On 6/8/26 11:39 PM, Tariq Toukan wrote:
> Hi,
> 
> Currently, devlink resource show only supports querying a specific
> device and displays device-level resources. However, some resources
> are per-port, such as the maximum number of SFs that can be created
> on a specific PF port.
> 
> This series extends devlink resource show with full support for
> port-level resources, including a dump mode, per-port querying syntax,
> and scope filtering. In preparation for these features, the first two
> patches refactor how dpipe tables are handled to unblock dump support
> and ensure errors in secondary queries are non-fatal.
> 
> The series is organized as follows:
> 
> Patch 1 splits the dpipe tables display into a separate function.
> 
> Patch 2 moves the dpipe tables query into the per-device resource show
> callback, ensuring it behaves correctly during a multi-device dump.
> 
> Patch 3 fixes a pre-existing memory leak in resource_ctx_fini.
> 
> Patch 4 adds dump support to resource show (no device required).
> 
> Patch 5 shows port-level resources returned in a dump reply.
> 
> Patch 6 adds DEV/PORT_INDEX syntax to resource show.
> 
> Patch 7 adds scope filter to resource show.
> 
> With this series, users can query resources at all levels:
> 
> $ devlink resource show
> pci/0000:03:00.0:
>   name local_max_SFs size 508 unit entry
>   name external_max_SFs size 508 unit entry
> pci/0000:03:00.0/196608:
>   name max_SFs size 20 unit entry
> 
> $ devlink resource show scope dev
> pci/0000:03:00.0:
>   name local_max_SFs size 508 unit entry
>   name external_max_SFs size 508 unit entry
> 
> $ devlink resource show scope port
> pci/0000:03:00.0/196608:
>   name max_SFs size 20 unit entry
> 
> $ devlink resource show pci/0000:03:00.0/196608
> pci/0000:03:00.0/196608:
>   name max_SFs size 20 unit entry
> 
> This series is the userspace counterpart to the kernel series:
> https://lore.kernel.org/all/20260407194107.148063-1-tariqt@nvidia.com/
> 
> Ido Schimmel (2):
>   devlink: Split dpipe tables output to a separate function
>   devlink: Move dpipe tables query to resources show callback
> 
> Or Har-Toov (5):
>   devlink: fix memory leak in resource_ctx_fini
>   devlink: add dump support for resource show
>   devlink: show port resources in resource dump
>   devlink: add per-port resource show support
>   devlink: add scope filter to resource show
> 
>  bash-completion/devlink     |   8 ++
>  devlink/devlink.c           | 202 +++++++++++++++++++++++++++---------
>  man/man8/devlink-resource.8 |  34 +++++-
>  3 files changed, 192 insertions(+), 52 deletions(-)
> 
> 
> base-commit: 7340b539841dc739bc0b813e8e86825bc1eb5a4c

applied to iproute2-next with the fixup recommended by Claude and
confirmed by Or