+ /* Check if the PFC is supported */
+ if (dev->data->dev_conf.dcb_capability_en & ETH_DCB_PFC_SUPPORT) {
+ pbsize = (uint16_t)(rx_buffer_size / nb_tcs);
+ for (i = 0; i < nb_tcs; i++) {
+ /* If the TC count is 8,
+ * and the default high_water is 48,
+ * the low_water is 16 as default.
+ */
+ hw->fc.high_water[i] = (pbsize * 3) / 4;
+ hw->fc.low_water[i] = pbsize / 4;
+ /* Enable pfc for this TC */
+ tc = &dcb_config->tc_config[i];
+ tc->pfc = txgbe_dcb_pfc_enabled;
+ }
+ txgbe_dcb_unpack_pfc_cee(dcb_config, map, &pfc_en);
+ if (dcb_config->num_tcs.pfc_tcs == ETH_4_TCS)
+ pfc_en &= 0x0F;
+ ret = txgbe_dcb_config_pfc(hw, pfc_en, map);
+ }
+