ethdev: add DCB support

[dpdk.git] / lib / librte_ether / rte_ethdev.c

diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index ac22f7a..ab0fa59 100644 (file)
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -339,6 +339,66 @@ rte_eth_dev_configure(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
                    return (-EINVAL);
                }
        }
+       if (dev_conf->txmode.mq_mode == ETH_VMDQ_DCB_TX) {
+               const struct rte_eth_vmdq_dcb_tx_conf *conf;
+
+               if (nb_tx_q != ETH_VMDQ_DCB_NUM_QUEUES) {
+                       PMD_DEBUG_TRACE("ethdev port_id=%d VMDQ+DCB, nb_tx_q "
+                                       "!= %d\n",
+                                       port_id, ETH_VMDQ_DCB_NUM_QUEUES);
+                       return (-EINVAL);
+               }
+               conf = &(dev_conf->tx_adv_conf.vmdq_dcb_tx_conf);
+               if (! (conf->nb_queue_pools == ETH_16_POOLS ||
+                      conf->nb_queue_pools == ETH_32_POOLS)) {
+                       PMD_DEBUG_TRACE("ethdev port_id=%d VMDQ+DCB selected, "
+                                   "nb_queue_pools != %d or nb_queue_pools "
+                                   "!= %d\n",
+                                   port_id, ETH_16_POOLS, ETH_32_POOLS);
+                       return (-EINVAL);
+               }
+       }
+       
+       /* For DCB mode check our configuration before we go further */
+       if (dev_conf->rxmode.mq_mode == ETH_DCB_RX) {
+               const struct rte_eth_dcb_rx_conf *conf;
+
+               if (nb_rx_q != ETH_DCB_NUM_QUEUES) {
+                       PMD_DEBUG_TRACE("ethdev port_id=%d DCB, nb_rx_q "
+                                       "!= %d\n",
+                                       port_id, ETH_DCB_NUM_QUEUES);
+                       return (-EINVAL);
+               }
+               conf = &(dev_conf->rx_adv_conf.dcb_rx_conf);
+               if (! (conf->nb_tcs == ETH_4_TCS ||
+                      conf->nb_tcs == ETH_8_TCS)) {
+                       PMD_DEBUG_TRACE("ethdev port_id=%d DCB selected, "
+                                   "nb_tcs != %d or nb_tcs "
+                                   "!= %d\n",
+                                   port_id, ETH_4_TCS, ETH_8_TCS);
+                       return (-EINVAL);
+               }
+       }
+
+       if (dev_conf->txmode.mq_mode == ETH_DCB_TX) {
+               const struct rte_eth_dcb_tx_conf *conf;
+
+               if (nb_tx_q != ETH_DCB_NUM_QUEUES) {
+                       PMD_DEBUG_TRACE("ethdev port_id=%d DCB, nb_tx_q "
+                                       "!= %d\n",
+                                       port_id, ETH_DCB_NUM_QUEUES);
+                       return (-EINVAL);
+               }
+               conf = &(dev_conf->tx_adv_conf.dcb_tx_conf);
+               if (! (conf->nb_tcs == ETH_4_TCS ||
+                      conf->nb_tcs == ETH_8_TCS)) {
+                       PMD_DEBUG_TRACE("ethdev port_id=%d DCB selected, "
+                                   "nb_tcs != %d or nb_tcs "
+                                   "!= %d\n",
+                                   port_id, ETH_4_TCS, ETH_8_TCS);
+                       return (-EINVAL);
+               }
+       }
 
        diag = (*dev->dev_ops->dev_configure)(dev, nb_rx_q, nb_tx_q);
        if (diag != 0) {