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ethdev: add common stats for telemetry

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The ethdev library now registers a telemetry command for common ethdev
statistics.

An example usage is shown below:

Connecting to /var/run/dpdk/rte/dpdk_telemetry.v2
{"version": "DPDK 20.08.0-rc1", "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>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
This commit is contained in:
Ciara Power 2020-09-23 12:12:28 +01:00 committed by Thomas Monjalon
parent bd78cf693e
commit 083b0b310b
1 changed files with 53 additions and 0 deletions
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53
lib/librte_ethdev/rte_ethdev.c
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@ -5315,6 +5315,57 @@ 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 = rte_tel_data_alloc();
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_container(d, stat_name, q_data, 0);
}
#define ADD_DICT_STAT(stats, s) rte_tel_data_add_dict_u64(d, #s, stats.s)
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;
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(stats, ipackets);
ADD_DICT_STAT(stats, opackets);
ADD_DICT_STAT(stats, ibytes);
ADD_DICT_STAT(stats, obytes);
ADD_DICT_STAT(stats, imissed);
ADD_DICT_STAT(stats, ierrors);
ADD_DICT_STAT(stats, oerrors);
ADD_DICT_STAT(stats, 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,
@ -5409,6 +5460,8 @@ RTE_INIT(ethdev_init_telemetry)
{
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 common 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",