[dpdk-dev] [PATCH v2 2/3] ixgbe: Implement the functionality of setting link up and down in IXGBE PMD

[Ouyang Changchun <changchun.ouyang@intel.com>]

Please ignore the previous v1 patch, just apply this v2 patch.

This patch implements the functionality of setting link up and down in IXGBE PMD.
It is implemented by enabling or disabling TX laser.

Signed-off-by: Ouyang Changchun <changchun.ouyang@intel.com>
---
 lib/librte_pmd_ixgbe/ixgbe_ethdev.c | 63 +++++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)

diff --git a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
index c9b5fe4..8f9c97a 100644
--- a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
+++ b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
@@ -97,6 +97,8 @@ 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_set_link_up(struct rte_eth_dev *dev);
+static int  ixgbe_dev_set_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);
@@ -246,6 +248,8 @@ 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_set_link_up    = ixgbe_dev_set_link_up,
+	.dev_set_link_down  = ixgbe_dev_set_link_down,
 	.dev_close            = ixgbe_dev_close,
 	.promiscuous_enable   = ixgbe_dev_promiscuous_enable,
 	.promiscuous_disable  = ixgbe_dev_promiscuous_disable,
@@ -1458,6 +1462,65 @@ ixgbe_dev_stop(struct rte_eth_dev *dev)
 }
 
 /*
+ * Set device link up: enable tx laser.
+ */
+static int
+ixgbe_dev_set_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,
+				"\nSet 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, "\nSet link up is not supported by device id 0x%x\n",
+		hw->device_id);
+	return -ENOTSUP;
+}
+
+/*
+ * Set device link down: disable tx laser.
+ */
+static int
+ixgbe_dev_set_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,
+				"\nSet 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,
+		"\nSet 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