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From: Ciara Power <ciara.power@intel.com>
To: kevin.laatz@intel.com, thomas@monjalon.net, ferruh.yigit@intel.com,
arybchenko@solarflare.com
Cc: keith.wiles@intel.com, dev@dpdk.org, Ciara Power <ciara.power@intel.com>
Date: Fri, 12 Jun 2020 11:53:44 +0100
Message-Id: <20200612105344.15383-3-ciara.power@intel.com>
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Subject: [dpdk-dev] [RFC 2/2] ethdev: add basic stats for telemetry
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The ethdev library now registers a telemetry command for basic ethdev
statistics.
An example usage is shown below:
Connecting to /var/run/dpdk/rte/dpdk_telemetry.v2
{"version": "DPDK 20.05.0-rc3", "pid": 14119, "max_output_len": 16384}
--> /ethdev/stats,0
{"/ethdev/stats": {"ipackets": 0, "opackets": 0, "ibytes": 0, "obytes": \
0, "imissed": 0, "ierrors": 0, "oerrors": 0, "rx_nombuf": 0, \
"q_ipackets": [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], \
"q_opackets": [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], \
"q_ibytes": [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], \
"q_obytes": [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], \
"q_errors": [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]}}
Signed-off-by: Ciara Power <ciara.power@intel.com>
---
lib/librte_ethdev/rte_ethdev.c | 54 ++++++++++++++++++++++++++++++++++
1 file changed, 54 insertions(+)
diff --git a/lib/librte_ethdev/rte_ethdev.c b/lib/librte_ethdev/rte_ethdev.c
index 8e10a6fc3..1a33e41d3 100644
--- a/lib/librte_ethdev/rte_ethdev.c
+++ b/lib/librte_ethdev/rte_ethdev.c
@@ -5215,6 +5215,58 @@ handle_port_list(const char *cmd __rte_unused,
return 0;
}
+static void
+add_port_queue_stats(struct rte_tel_data *d, uint64_t *q_stats,
+ const char *stat_name)
+{
+ int q;
+ struct rte_tel_data *q_data = malloc(rte_tel_get_data_size());
+ rte_tel_data_start_array(q_data, RTE_TEL_U64_VAL);
+ for (q = 0; q < RTE_ETHDEV_QUEUE_STAT_CNTRS; q++)
+ rte_tel_data_add_array_u64(q_data, q_stats[q]);
+ rte_tel_data_add_dict_data(d, stat_name, q_data);
+}
+
+static int
+handle_port_stats(const char *cmd __rte_unused,
+ const char *params,
+ struct rte_tel_data *d)
+{
+ struct rte_eth_stats stats;
+ int port_id, ret;
+
+#define ADD_DICT_STAT(s) rte_tel_data_add_dict_u64(d, #s, stats.s)
+
+ if (params == NULL || strlen(params) == 0 || !isdigit(*params))
+ return -1;
+
+ port_id = atoi(params);
+ if (!rte_eth_dev_is_valid_port(port_id))
+ return -1;
+
+ ret = rte_eth_stats_get(port_id, &stats);
+ if (ret < 0)
+ return -1;
+
+ rte_tel_data_start_dict(d);
+ ADD_DICT_STAT(ipackets);
+ ADD_DICT_STAT(opackets);
+ ADD_DICT_STAT(ibytes);
+ ADD_DICT_STAT(obytes);
+ ADD_DICT_STAT(imissed);
+ ADD_DICT_STAT(ierrors);
+ ADD_DICT_STAT(oerrors);
+ ADD_DICT_STAT(rx_nombuf);
+
+ add_port_queue_stats(d, stats.q_ipackets, "q_ipackets");
+ add_port_queue_stats(d, stats.q_opackets, "q_opackets");
+ add_port_queue_stats(d, stats.q_ibytes, "q_ibytes");
+ add_port_queue_stats(d, stats.q_obytes, "q_obytes");
+ add_port_queue_stats(d, stats.q_errors, "q_errors");
+
+ return 0;
+}
+
static int
handle_port_xstats(const char *cmd __rte_unused,
const char *params,
@@ -5302,6 +5354,8 @@ RTE_INIT(ethdev_init_log)
rte_log_set_level(rte_eth_dev_logtype, RTE_LOG_INFO);
rte_telemetry_register_cmd("/ethdev/list", handle_port_list,
"Returns list of available ethdev ports. Takes no parameters");
+ rte_telemetry_register_cmd("/ethdev/stats", handle_port_stats,
+ "Returns the basic stats for a port. Parameters: int port_id");
rte_telemetry_register_cmd("/ethdev/xstats", handle_port_xstats,
"Returns the extended stats for a port. Parameters: int port_id");
rte_telemetry_register_cmd("/ethdev/link_status",
--
2.17.1