Function get_eth_dcb_conf

dpdk/app/test-pmd/testpmd.c:4301–4379

};

static  int
get_eth_dcb_conf(portid_t pid, struct rte_eth_conf *eth_conf,
		 enum dcb_mode_enable dcb_mode,
		 enum rte_eth_nb_tcs num_tcs,
		 uint8_t pfc_en)
{
	uint8_t i;
	int32_t rc;
	struct rte_eth_rss_conf rss_conf;

	/*
	 * Builds up the correct configuration for dcb+vt based on the vlan tags array
	 * given above, and the number of traffic classes available for use.
	 */
	if (dcb_mode == DCB_VT_ENABLED) {
		struct rte_eth_vmdq_dcb_conf *vmdq_rx_conf =
				&eth_conf->rx_adv_conf.vmdq_dcb_conf;
		struct rte_eth_vmdq_dcb_tx_conf *vmdq_tx_conf =
				&eth_conf->tx_adv_conf.vmdq_dcb_tx_conf;

		/* VMDQ+DCB RX and TX configurations */
		vmdq_rx_conf->enable_default_pool = 0;
		vmdq_rx_conf->default_pool = 0;
		vmdq_rx_conf->nb_queue_pools =
			(num_tcs ==  RTE_ETH_4_TCS ? RTE_ETH_32_POOLS : RTE_ETH_16_POOLS);
		vmdq_tx_conf->nb_queue_pools =
			(num_tcs ==  RTE_ETH_4_TCS ? RTE_ETH_32_POOLS : RTE_ETH_16_POOLS);

		vmdq_rx_conf->nb_pool_maps = vmdq_rx_conf->nb_queue_pools;
		for (i = 0; i < vmdq_rx_conf->nb_pool_maps; i++) {
			vmdq_rx_conf->pool_map[i].vlan_id = vlan_tags[i];
			vmdq_rx_conf->pool_map[i].pools =
				1 << (i % vmdq_rx_conf->nb_queue_pools);
		}
		for (i = 0; i < RTE_ETH_DCB_NUM_USER_PRIORITIES; i++) {
			vmdq_rx_conf->dcb_tc[i] = i % num_tcs;
			vmdq_tx_conf->dcb_tc[i] = i % num_tcs;
		}

		/* set DCB mode of RX and TX of multiple queues */
		eth_conf->rxmode.mq_mode =
				(enum rte_eth_rx_mq_mode)
					(rx_mq_mode & RTE_ETH_MQ_RX_VMDQ_DCB);
		eth_conf->txmode.mq_mode = RTE_ETH_MQ_TX_VMDQ_DCB;
	} else {
		struct rte_eth_dcb_rx_conf *rx_conf =
				&eth_conf->rx_adv_conf.dcb_rx_conf;
		struct rte_eth_dcb_tx_conf *tx_conf =
				&eth_conf->tx_adv_conf.dcb_tx_conf;

		memset(&rss_conf, 0, sizeof(struct rte_eth_rss_conf));

		rc = rte_eth_dev_rss_hash_conf_get(pid, &rss_conf);
		if (rc != 0)
			return rc;

		rx_conf->nb_tcs = num_tcs;
		tx_conf->nb_tcs = num_tcs;