Function eth_basic_stats_get

dpdk/lib/ethdev/rte_ethdev.c:3476–3528

static int
eth_basic_stats_get(uint16_t port_id, struct rte_eth_xstat *xstats)
{
	struct rte_eth_dev *dev;
	struct rte_eth_stats eth_stats;
	unsigned int count = 0, i, q;
	uint64_t val, *stats_ptr;
	uint16_t nb_rxqs, nb_txqs;
	int ret;

	ret = rte_eth_stats_get(port_id, &eth_stats);
	if (ret < 0)
		return ret;

	dev = &rte_eth_devices[port_id];

	nb_rxqs = RTE_MIN(dev->data->nb_rx_queues, RTE_ETHDEV_QUEUE_STAT_CNTRS);
	nb_txqs = RTE_MIN(dev->data->nb_tx_queues, RTE_ETHDEV_QUEUE_STAT_CNTRS);

	/* global stats */
	for (i = 0; i < RTE_NB_STATS; i++) {
		stats_ptr = RTE_PTR_ADD(&eth_stats,
					eth_dev_stats_strings[i].offset);
		val = *stats_ptr;
		xstats[count++].value = val;
	}

	if ((dev->data->dev_flags & RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS) == 0)
		return count;

	/* per-rxq stats */
	for (q = 0; q < nb_rxqs; q++) {
		for (i = 0; i < RTE_NB_RXQ_STATS; i++) {
			stats_ptr = RTE_PTR_ADD(&eth_stats,
					eth_dev_rxq_stats_strings[i].offset +
					q * sizeof(uint64_t));
			val = *stats_ptr;
			xstats[count++].value = val;
		}
	}

	/* per-txq stats */
	for (q = 0; q < nb_txqs; q++) {
		for (i = 0; i < RTE_NB_TXQ_STATS; i++) {
			stats_ptr = RTE_PTR_ADD(&eth_stats,
					eth_dev_txq_stats_strings[i].offset +
					q * sizeof(uint64_t));
			val = *stats_ptr;
			xstats[count++].value = val;
		}
	}
	return count;
}

/* retrieve ethdev extended statistics */
int