ethdev: MTU accessors
[dpdk.git] / lib / librte_pmd_e1000 / igb_ethdev.c
index e651e3d..e633a5d 100644 (file)
@@ -72,6 +72,8 @@ static void eth_igb_stats_get(struct rte_eth_dev *dev,
 static void eth_igb_stats_reset(struct rte_eth_dev *dev);
 static void eth_igb_infos_get(struct rte_eth_dev *dev,
                                struct rte_eth_dev_info *dev_info);
+static int  eth_igb_flow_ctrl_get(struct rte_eth_dev *dev,
+                               struct rte_eth_fc_conf *fc_conf);
 static int  eth_igb_flow_ctrl_set(struct rte_eth_dev *dev,
                                struct rte_eth_fc_conf *fc_conf);
 static int eth_igb_lsc_interrupt_setup(struct rte_eth_dev *dev);
@@ -85,6 +87,8 @@ static void igb_hw_control_release(struct e1000_hw *hw);
 static void igb_init_manageability(struct e1000_hw *hw);
 static void igb_release_manageability(struct e1000_hw *hw);
 
+static int  eth_igb_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);
+
 static int eth_igb_vlan_filter_set(struct rte_eth_dev *dev,
                uint16_t vlan_id, int on);
 static void eth_igb_vlan_tpid_set(struct rte_eth_dev *dev, uint16_t tpid_id);
@@ -216,6 +220,7 @@ static struct eth_dev_ops eth_igb_ops = {
        .stats_get            = eth_igb_stats_get,
        .stats_reset          = eth_igb_stats_reset,
        .dev_infos_get        = eth_igb_infos_get,
+       .mtu_set              = eth_igb_mtu_set,
        .vlan_filter_set      = eth_igb_vlan_filter_set,
        .vlan_tpid_set        = eth_igb_vlan_tpid_set,
        .vlan_offload_set     = eth_igb_vlan_offload_set,
@@ -227,6 +232,7 @@ static struct eth_dev_ops eth_igb_ops = {
        .tx_queue_release     = eth_igb_tx_queue_release,
        .dev_led_on           = eth_igb_led_on,
        .dev_led_off          = eth_igb_led_off,
+       .flow_ctrl_get        = eth_igb_flow_ctrl_get,
        .flow_ctrl_set        = eth_igb_flow_ctrl_set,
        .mac_addr_add         = eth_igb_rar_set,
        .mac_addr_remove      = eth_igb_rar_clear,
@@ -1140,8 +1146,13 @@ eth_igb_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *rte_stats)
                return;
 
        /* Rx Errors */
-       rte_stats->ierrors = stats->rxerrc + stats->crcerrs + stats->algnerrc +
-           stats->ruc + stats->roc + stats->mpc + stats->cexterr;
+       rte_stats->ibadcrc = stats->crcerrs;
+       rte_stats->ibadlen = stats->rlec + stats->ruc + stats->roc;
+       rte_stats->imissed = stats->mpc;
+       rte_stats->ierrors = rte_stats->ibadcrc +
+                            rte_stats->ibadlen +
+                            rte_stats->imissed +
+                            stats->rxerrc + stats->algnerrc + stats->cexterr;
 
        /* Tx Errors */
        rte_stats->oerrors = stats->ecol + stats->latecol;
@@ -1850,6 +1861,48 @@ eth_igb_led_off(struct rte_eth_dev *dev)
        return (e1000_led_off(hw) == E1000_SUCCESS ? 0 : -ENOTSUP);
 }
 
+static int
+eth_igb_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
+{
+       struct e1000_hw *hw;
+       uint32_t ctrl;
+       int tx_pause;
+       int rx_pause;
+
+       hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+       fc_conf->pause_time = hw->fc.pause_time;
+       fc_conf->high_water = hw->fc.high_water;
+       fc_conf->low_water = hw->fc.low_water;
+       fc_conf->send_xon = hw->fc.send_xon;
+       fc_conf->autoneg = hw->mac.autoneg;
+
+       /*
+        * Return rx_pause and tx_pause status according to actual setting of
+        * the TFCE and RFCE bits in the CTRL register.
+        */
+       ctrl = E1000_READ_REG(hw, E1000_CTRL);
+       if (ctrl & E1000_CTRL_TFCE)
+               tx_pause = 1;
+       else
+               tx_pause = 0;
+
+       if (ctrl & E1000_CTRL_RFCE)
+               rx_pause = 1;
+       else
+               rx_pause = 0;
+
+       if (rx_pause && tx_pause)
+               fc_conf->mode = RTE_FC_FULL;
+       else if (rx_pause)
+               fc_conf->mode = RTE_FC_RX_PAUSE;
+       else if (tx_pause)
+               fc_conf->mode = RTE_FC_TX_PAUSE;
+       else
+               fc_conf->mode = RTE_FC_NONE;
+
+       return 0;
+}
+
 static int
 eth_igb_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 {
@@ -1866,6 +1919,8 @@ eth_igb_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
        uint32_t rctl;
 
        hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+       if (fc_conf->autoneg != hw->mac.autoneg)
+               return -ENOTSUP;
        rx_buf_size = igb_get_rx_buffer_size(hw);
        PMD_INIT_LOG(DEBUG, "Rx packet buffer size = 0x%x \n", rx_buf_size);
 
@@ -2953,6 +3008,56 @@ eth_igb_get_5tuple_filter(struct rte_eth_dev *dev, uint16_t index,
        return -ENOENT;
 }
 
+static int
+eth_igb_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
+{
+       uint32_t rctl;
+       struct e1000_hw *hw;
+       struct rte_eth_dev_info dev_info;
+       uint32_t frame_size = mtu + (ETHER_HDR_LEN + ETHER_CRC_LEN +
+                                    VLAN_TAG_SIZE);
+
+       hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
+#ifdef RTE_LIBRTE_82571_SUPPORT
+       /* XXX: not bigger than max_rx_pktlen */
+       if (hw->mac.type == e1000_82571)
+               return -ENOTSUP;
+#endif
+       eth_igb_infos_get(dev, &dev_info);
+
+       /* check that mtu is within the allowed range */
+       if ((mtu < ETHER_MIN_MTU) ||
+           (frame_size > dev_info.max_rx_pktlen))
+               return -EINVAL;
+
+       /* refuse mtu that requires the support of scattered packets when this
+        * feature has not been enabled before. */
+       if (!dev->data->scattered_rx &&
+           frame_size > dev->data->min_rx_buf_size - RTE_PKTMBUF_HEADROOM)
+               return -EINVAL;
+
+       rctl = E1000_READ_REG(hw, E1000_RCTL);
+
+       /* switch to jumbo mode if needed */
+       if (frame_size > ETHER_MAX_LEN) {
+               dev->data->dev_conf.rxmode.jumbo_frame = 1;
+               rctl |= E1000_RCTL_LPE;
+       } else {
+               dev->data->dev_conf.rxmode.jumbo_frame = 0;
+               rctl &= ~E1000_RCTL_LPE;
+       }
+       E1000_WRITE_REG(hw, E1000_RCTL, rctl);
+
+       /* update max frame size */
+       dev->data->dev_conf.rxmode.max_rx_pkt_len = frame_size;
+
+       E1000_WRITE_REG(hw, E1000_RLPML,
+                       dev->data->dev_conf.rxmode.max_rx_pkt_len);
+
+       return 0;
+}
+
 static struct rte_driver pmd_igb_drv = {
        .type = PMD_PDEV,
        .init = rte_igb_pmd_init,