Function dmadev_handle_dev_stats

dpdk/lib/dmadev/rte_dmadev.c:975–1021

#define ADD_DICT_STAT(s) rte_tel_data_add_dict_uint(d, #s, dma_stats.s)

static int
dmadev_handle_dev_stats(const char *cmd __rte_unused,
		const char *params,
		struct rte_tel_data *d)
{
	struct rte_dma_info dma_info;
	struct rte_dma_stats dma_stats;
	int dev_id, ret, vchan_id;
	char *end_param;
	const char *vchan_param;

	if (params == NULL || strlen(params) == 0 || !isdigit(*params))
		return -EINVAL;

	dev_id = strtoul(params, &end_param, 0);

	/* Function info_get validates dev_id so we don't need to. */
	ret = rte_dma_info_get(dev_id, &dma_info);
	if (ret < 0)
		return -EINVAL;

	/* If the device has one vchan the user does not need to supply the
	 * vchan id and only the device id is needed, no extra parameters.
	 */
	if (dma_info.nb_vchans == 1 && *end_param == '\0')
		vchan_id = 0;
	else {
		vchan_param = strtok(end_param, ",");
		if (!vchan_param || strlen(vchan_param) == 0 || !isdigit(*vchan_param))
			return -EINVAL;

		vchan_id = strtoul(vchan_param, &end_param, 0);
	}
	if (*end_param != '\0')
		RTE_DMA_LOG(WARNING, "Extra parameters passed to dmadev telemetry command, ignoring");

	ret = rte_dma_stats_get(dev_id, vchan_id, &dma_stats);
	if (ret < 0)
		return -EINVAL;

	rte_tel_data_start_dict(d);
	ADD_DICT_STAT(submitted);
	ADD_DICT_STAT(completed);
	ADD_DICT_STAT(errors);

	return 0;
}

#ifndef RTE_EXEC_ENV_WINDOWS
static int