Function ena_xstats_get_by_id

dpdk/drivers/net/ena/ena_ethdev.c:3512–3600

}

static int ena_xstats_get_by_id(struct rte_eth_dev *dev,
				const uint64_t *ids,
				uint64_t *values,
				unsigned int n)
{
	struct ena_adapter *adapter = dev->data->dev_private;
	uint64_t id;
	uint64_t rx_entries, tx_entries;
	unsigned int i;
	int qid;
	int valid = 0;
	bool were_metrics_copied = false;
	bool was_srd_info_copied = false;
	uint64_t metrics_stats[ENA_MAX_CUSTOMER_METRICS];
	struct ena_stats_srd srd_info = {0};

	for (i = 0; i < n; ++i) {
		id = ids[i];
		/* Check if id belongs to global statistics */
		if (id < ENA_STATS_ARRAY_GLOBAL) {
			values[i] = *((uint64_t *)&adapter->dev_stats + id);
			++valid;
			continue;
		}

		/* Check if id belongs to ENI statistics */
		id -= ENA_STATS_ARRAY_GLOBAL;
		if (id < adapter->metrics_num) {
			/* Avoid reading metrics multiple times in a single
			 * function call, as it requires communication with the
			 * admin queue.
			 */
			if (!were_metrics_copied) {
				were_metrics_copied = true;
				ena_copy_customer_metrics(adapter,
						metrics_stats,
						adapter->metrics_num);
			}

			values[i] = *((uint64_t *)&metrics_stats + id);
			++valid;
			continue;
		}

		/* Check if id belongs to SRD info statistics */
		id -= adapter->metrics_num;

		if (id < ENA_STATS_ARRAY_ENA_SRD) {
			/*
			 * Avoid reading srd info multiple times in a single
			 * function call, as it requires communication with the
			 * admin queue.
			 */
			if (!was_srd_info_copied) {
				was_srd_info_copied = true;
				ena_copy_ena_srd_info(adapter, &srd_info);
			}
			values[i] = *((uint64_t *)&adapter->srd_stats + id);