[PATCH iproute2-next 5/7] devlink: show port resources in resource dump

[Tariq Toukan <tariqt@nvidia.com>]

From: Or Har-Toov <ohartoov@nvidia.com>

When the kernel returns port-level resource messages during a
DEVLINK_CMD_RESOURCE_DUMP, display them alongside device-level
resources.

For example:

$ devlink resource show
pci/0000:03:00.0:
  name max_local_SFs size 32 unit entry dpipe_tables none
  name max_external_SFs size 32 unit entry dpipe_tables none
pci/0000:03:00.0/196608:
  name max_SFs size 32 unit entry dpipe_tables none
pci/0000:03:00.1:
  name max_local_SFs size 32 unit entry dpipe_tables none
  name max_external_SFs size 32 unit entry dpipe_tables none
pci/0000:03:00.1/262144:
  name max_SFs size 32 unit entry dpipe_tables none

Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
---
 devlink/devlink.c | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/devlink/devlink.c b/devlink/devlink.c
index 0962ffd861ad..737cfc7437f9 100644
--- a/devlink/devlink.c
+++ b/devlink/devlink.c
@@ -8954,18 +8954,23 @@ static void resources_dpipe_tables_fini(struct dpipe_ctx *dpipe_ctx,
 static void
 resources_show(struct resource_ctx *ctx, struct nlattr **tb)
 {
-	struct resources *resources = ctx->resources;
+	bool is_port = !!tb[DEVLINK_ATTR_PORT_INDEX];
 	struct dpipe_ctx dpipe_ctx = {};
 	struct resource *resource;
+	struct dl *dl = ctx->dl;
 
 	resources_dpipe_tables_init(&dpipe_ctx, ctx, tb);
-
-	list_for_each_entry(resource, &resources->resource_list, list) {
-		pr_out_handle_start_arr(ctx->dl, tb);
+	list_for_each_entry(resource, &ctx->resources->resource_list, list) {
+		if (is_port)
+			pr_out_port_handle_start_arr(dl, tb, false);
+		else
+			pr_out_handle_start_arr(dl, tb);
 		resource_show(resource, ctx);
-		pr_out_handle_end(ctx->dl);
+		if (is_port)
+			pr_out_port_handle_end(dl);
+		else
+			pr_out_handle_end(dl);
 	}
-
 	resources_dpipe_tables_fini(&dpipe_ctx, ctx);
 }
 
-- 
2.44.0