Function i40e_vmdq_setup

dpdk/drivers/net/i40e/i40e_ethdev.c:6508–6602

}

static int
i40e_vmdq_setup(struct rte_eth_dev *dev)
{
	struct rte_eth_conf *conf = &dev->data->dev_conf;
	struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
	int i, err, conf_vsis, j, loop;
	struct i40e_vsi *vsi;
	struct i40e_vmdq_info *vmdq_info;
	struct rte_eth_vmdq_rx_conf *vmdq_conf;
	struct i40e_hw *hw = I40E_PF_TO_HW(pf);

	/*
	 * Disable interrupt to avoid message from VF. Furthermore, it will
	 * avoid race condition in VSI creation/destroy.
	 */
	i40e_pf_disable_irq0(hw);

	if ((pf->flags & I40E_FLAG_VMDQ) == 0) {
		PMD_INIT_LOG(ERR, "FW doesn't support VMDQ");
		return -ENOTSUP;
	}

	conf_vsis = conf->rx_adv_conf.vmdq_rx_conf.nb_queue_pools;
	if (conf_vsis > pf->max_nb_vmdq_vsi) {
		PMD_INIT_LOG(ERR, "VMDQ config: %u, max support:%u",
			conf->rx_adv_conf.vmdq_rx_conf.nb_queue_pools,
			pf->max_nb_vmdq_vsi);
		return -ENOTSUP;
	}

	if (pf->vmdq != NULL) {
		PMD_INIT_LOG(INFO, "VMDQ already configured");
		return 0;
	}

	pf->vmdq = rte_zmalloc("vmdq_info_struct",
				sizeof(*vmdq_info) * conf_vsis, 0);

	if (pf->vmdq == NULL) {
		PMD_INIT_LOG(ERR, "Failed to allocate memory");
		return -ENOMEM;
	}

	vmdq_conf = &conf->rx_adv_conf.vmdq_rx_conf;

	/* Create VMDQ VSI */
	for (i = 0; i < conf_vsis; i++) {
		vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, pf->main_vsi,
				vmdq_conf->enable_loop_back);
		if (vsi == NULL) {
			PMD_INIT_LOG(ERR, "Failed to create VMDQ VSI");
			err = -1;
			goto err_vsi_setup;
		}
		vmdq_info = &pf->vmdq[i];
		vmdq_info->pf = pf;
		vmdq_info->vsi = vsi;
	}