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/[email protected]/ 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 -- 2.44.0
