From 5d3158e366fe1293ee5a7293a9050bf93a460f53 Mon Sep 17 00:00:00 2001
From: Jie Hai <haijie1@huawei.com>
Date: Mon, 19 Feb 2024 16:32:52 +0800
Subject: [PATCH 17/30] ring: add telemetry command to list rings
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[ upstream commit 36e5c1b91607cc41e73e1108bdc5843c68e3ebc6 ]
Add a telemetry command to list the rings used in the system.
An example using this command is shown below:
--> /ring/list
{
"/ring/list": [
"HT_0000:7d:00.2",
"MP_mb_pool_0"
]
}
Signed-off-by: Jie Hai <haijie1@huawei.com>
Acked-by: Konstantin Ananyev <konstantin.v.ananyev@yandex.ru>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Acked-by: Huisong Li <lihuisong@huawei.com>
Acked-by: Chengwen Feng <fengchengwen@huawei.com>
Acked-by: Morten Brørup <mb@smartsharesystems.com>
---
lib/ring/meson.build | 1 +
lib/ring/rte_ring.c | 40 ++++++++++++++++++++++++++++++++++++++++
2 files changed, 41 insertions(+)
diff --git a/lib/ring/meson.build b/lib/ring/meson.build
index c20685c..7fca958 100644
--- a/lib/ring/meson.build
+++ b/lib/ring/meson.build
@@ -18,3 +18,4 @@ indirect_headers += files (
'rte_ring_rts.h',
'rte_ring_rts_elem_pvt.h',
)
+deps += ['telemetry']
diff --git a/lib/ring/rte_ring.c b/lib/ring/rte_ring.c
index 057d25f..6a10280 100644
--- a/lib/ring/rte_ring.c
+++ b/lib/ring/rte_ring.c
@@ -22,6 +22,7 @@
#include <rte_errno.h>
#include <rte_string_fns.h>
#include <rte_tailq.h>
+#include <rte_telemetry.h>
#include "rte_ring.h"
#include "rte_ring_elem.h"
@@ -418,3 +419,42 @@ rte_ring_lookup(const char *name)
return r;
}
+
+static void
+ring_walk(void (*func)(struct rte_ring *, void *), void *arg)
+{
+ struct rte_ring_list *ring_list;
+ struct rte_tailq_entry *tailq_entry;
+
+ ring_list = RTE_TAILQ_CAST(rte_ring_tailq.head, rte_ring_list);
+ rte_mcfg_tailq_read_lock();
+
+ TAILQ_FOREACH(tailq_entry, ring_list, next) {
+ (*func)((struct rte_ring *) tailq_entry->data, arg);
+ }
+
+ rte_mcfg_tailq_read_unlock();
+}
+
+static void
+ring_list_cb(struct rte_ring *r, void *arg)
+{
+ struct rte_tel_data *d = (struct rte_tel_data *)arg;
+
+ rte_tel_data_add_array_string(d, r->name);
+}
+
+static int
+ring_handle_list(const char *cmd __rte_unused,
+ const char *params __rte_unused, struct rte_tel_data *d)
+{
+ rte_tel_data_start_array(d, RTE_TEL_STRING_VAL);
+ ring_walk(ring_list_cb, d);
+ return 0;
+}
+
+RTE_INIT(ring_init_telemetry)
+{
+ rte_telemetry_register_cmd("/ring/list", ring_handle_list,
+ "Returns list of available rings. Takes no parameters");
+}
--
2.33.0