On Monday 18 September 2017 08:26 PM, Ferruh Yigit wrote:
On 9/9/2017 12:21 PM, Shreyansh Jain wrote:
Signed-off-by: Hemant Agrawal <hemant.agra...@nxp.com>
Signed-off-by: Shreyansh Jain <shreyansh.j...@nxp.com>

<...>

+static int dpaa_eth_link_update(struct rte_eth_dev *dev,
+                               int wait_to_complete __rte_unused)
+{
+       struct dpaa_if *dpaa_intf = dev->data->dev_private;
+       struct rte_eth_link *link = &dev->data->dev_link;
+
+       PMD_INIT_FUNC_TRACE();
+
+       if (dpaa_intf->fif->mac_type == fman_mac_1g)
+               link->link_speed = 1000;
+       else if (dpaa_intf->fif->mac_type == fman_mac_10g)
+               link->link_speed = 10000;
+       else
+               DPAA_PMD_ERR("invalid link_speed: %s, %d",
+                            dpaa_intf->name, dpaa_intf->fif->mac_type);
+
+       link->link_status = dpaa_intf->valid;
+       link->link_duplex = ETH_LINK_FULL_DUPLEX;
+       link->link_autoneg = ETH_LINK_AUTONEG;

Shouldn't this function go and get link information from hardware?

Our currently hardware interfaces don't support these operations explicitly. For the "fman_mac_1g" and "fman_mac_10g", these are the default sets which are exposing. Overtime, we will get more such interfaces exposed from Linux kernel to Fman library and update this code.


+       return 0;
+}
+
  static
  int dpaa_eth_rx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
                            uint16_t nb_desc __rte_unused,
@@ -216,6 +238,22 @@ static void dpaa_eth_tx_queue_release(void *txq 
__rte_unused)
        PMD_INIT_FUNC_TRACE();
  }
+static int dpaa_link_down(struct rte_eth_dev *dev)
+{
+       PMD_INIT_FUNC_TRACE();
+
+       dpaa_eth_dev_stop(dev);

Drivers tend to do revers, make link down on device stop. Just to double
check if stop() is intended for link down.

fman_if_disable_rx is equivalent to "link down" as well as stop (because it flushes the queues). That is why these APIs are linked.


+       return 0;
+}
+
+static int dpaa_link_up(struct rte_eth_dev *dev)
+{
+       PMD_INIT_FUNC_TRACE();
+
+       dpaa_eth_dev_start(dev);
+       return 0;
+}

<...>


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