[dpdk-dev] [PATCH 2/3] ixgbe: Implement the functionality of administrative link up and down in IXGBE PMD

[Ouyang Changchun]

This patch implements the functionality of administrative link up and down in 
IXGBE PMD.

Signed-off-by: Ouyang Changchun <changchun.ouyang at intel.com>
---
 lib/librte_pmd_ixgbe/ixgbe_ethdev.c | 58 +++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)

diff --git a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c 
b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
index 76f09af..b6ffad0 100644
--- a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
+++ b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
@@ -98,6 +98,8 @@ static int eth_ixgbe_dev_init(struct eth_driver *eth_drv,
 static int  ixgbe_dev_configure(struct rte_eth_dev *dev);
 static int  ixgbe_dev_start(struct rte_eth_dev *dev);
 static void ixgbe_dev_stop(struct rte_eth_dev *dev);
+static int  ixgbe_dev_admin_link_up(struct rte_eth_dev *dev);
+static int  ixgbe_dev_admin_link_down(struct rte_eth_dev *dev);
 static void ixgbe_dev_close(struct rte_eth_dev *dev);
 static void ixgbe_dev_promiscuous_enable(struct rte_eth_dev *dev);
 static void ixgbe_dev_promiscuous_disable(struct rte_eth_dev *dev);
@@ -263,6 +265,8 @@ static struct eth_dev_ops ixgbe_eth_dev_ops = {
        .dev_configure        = ixgbe_dev_configure,
        .dev_start            = ixgbe_dev_start,
        .dev_stop             = ixgbe_dev_stop,
+       .dev_admin_link_up    = ixgbe_dev_admin_link_up,
+       .dev_admin_link_down  = ixgbe_dev_admin_link_down,
        .dev_close            = ixgbe_dev_close,
        .promiscuous_enable   = ixgbe_dev_promiscuous_enable,
        .promiscuous_disable  = ixgbe_dev_promiscuous_disable,
@@ -1487,6 +1491,60 @@ ixgbe_dev_stop(struct rte_eth_dev *dev)
 }

 /*
+ * Link up device administratively: enable tx laser.
+ */
+static int
+ixgbe_dev_admin_link_up(struct rte_eth_dev *dev)
+{
+       struct ixgbe_hw *hw =
+               IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+       if (hw->mac.type == ixgbe_mac_82599EB) {
+#ifdef RTE_NIC_BYPASS
+               if (hw->device_id == IXGBE_DEV_ID_82599_BYPASS) {
+                       /* Not suported in bypass mode */
+                       PMD_INIT_LOG(ERR, "\nAdmin link up is not supported by 
device id 0x%x\n",
+                                        hw->device_id);
+                       return -ENOTSUP;
+               }
+#endif
+               /* Turn on the laser */
+               ixgbe_enable_tx_laser(hw);
+               return 0;
+       }
+
+       PMD_INIT_LOG(ERR, "\nAdmin link up is not supported by device id 
0x%x\n",
+                        hw->device_id);
+       return -ENOTSUP;
+}
+
+/*
+ * Link down device administratively: disable tx laser.
+ */
+static int
+ixgbe_dev_admin_link_down(struct rte_eth_dev *dev)
+{
+       struct ixgbe_hw *hw =
+               IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+       if (hw->mac.type == ixgbe_mac_82599EB) {
+#ifdef RTE_NIC_BYPASS
+               if (hw->device_id == IXGBE_DEV_ID_82599_BYPASS) {
+                       /* Not suported in bypass mode */
+                       PMD_INIT_LOG(ERR, "\nAdmin link down is not supported 
by device id 0x%x\n",
+                                        hw->device_id);
+                       return -ENOTSUP;
+               }
+#endif
+               /* Turn off the laser */
+               ixgbe_disable_tx_laser(hw);
+               return 0;
+       }
+
+       PMD_INIT_LOG(ERR, "\nAdmin link down is not supported by device id 
0x%x\n",
+                        hw->device_id);
+       return -ENOTSUP;
+}
+
+/*
  * Reest and stop device.
  */
 static void
-- 
1.9.0