+ /* Notify VF of number of DCB traffic classes */
+ eth_conf = &dev->data->dev_conf;
+ switch (eth_conf->txmode.mq_mode) {
+ case ETH_MQ_TX_NONE:
+ case ETH_MQ_TX_DCB:
+ RTE_LOG(ERR, PMD, "PF must work with virtualization for VF %u"
+ ", but its tx mode = %d\n", vf,
+ eth_conf->txmode.mq_mode);
+ return -1;
+
+ case ETH_MQ_TX_VMDQ_DCB:
+ vmdq_dcb_tx_conf = ð_conf->tx_adv_conf.vmdq_dcb_tx_conf;
+ switch (vmdq_dcb_tx_conf->nb_queue_pools) {
+ case ETH_16_POOLS:
+ num_tcs = ETH_8_TCS;
+ break;
+ case ETH_32_POOLS:
+ num_tcs = ETH_4_TCS;
+ break;
+ default:
+ return -1;
+ }
+ break;
+
+ /* ETH_MQ_TX_VMDQ_ONLY, DCB not enabled */
+ case ETH_MQ_TX_VMDQ_ONLY:
+ hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ vmvir = IXGBE_READ_REG(hw, IXGBE_VMVIR(vf));
+ vlana = vmvir & IXGBE_VMVIR_VLANA_MASK;
+ vid = vmvir & IXGBE_VMVIR_VLAN_VID_MASK;
+ user_priority =
+ (vmvir & IXGBE_VMVIR_VLAN_UP_MASK) >> VLAN_PRIO_SHIFT;
+ if ((vlana == IXGBE_VMVIR_VLANA_DEFAULT) &&
+ ((vid != 0) || (user_priority != 0)))
+ num_tcs = 1;
+ else
+ num_tcs = 0;
+ break;
+
+ default:
+ RTE_LOG(ERR, PMD, "PF work with invalid mode = %d\n",
+ eth_conf->txmode.mq_mode);
+ return -1;
+ }
+ msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs;