[dpdk-dev] [PATCH 2/2] net/vmxnet3: keep consistent link status

[Chas Williams]

From: "Charles (Chas) Williams" <ciwillia at mail.eng.vyatta.net>

Bonding may examine the link properties to ensure that matching interfaces
are bound together.  If the link is going to have fixed properties,
these need to remain consistent regardless of the link_status or the
state of the adapter.

Signed-off-by: Chas Williams <chas3 at att.com>
---
 drivers/net/vmxnet3/vmxnet3_ethdev.c | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/drivers/net/vmxnet3/vmxnet3_ethdev.c b/drivers/net/vmxnet3/vmxnet3_ethdev.c
index 776a0da..d5379dd 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethdev.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethdev.c
@@ -267,6 +267,7 @@ eth_vmxnet3_dev_init(struct rte_eth_dev *eth_dev)
 	struct rte_pci_device *pci_dev;
 	struct vmxnet3_hw *hw = eth_dev->data->dev_private;
 	uint32_t mac_hi, mac_lo, ver;
+	struct rte_eth_link link;
 
 	PMD_INIT_FUNC_TRACE();
 
@@ -369,6 +370,13 @@ eth_vmxnet3_dev_init(struct rte_eth_dev *eth_dev)
 	memset(hw->saved_tx_stats, 0, sizeof(hw->saved_tx_stats));
 	memset(hw->saved_rx_stats, 0, sizeof(hw->saved_rx_stats));
 
+	/* set the initial link status */
+	memset(&link, 0, sizeof(link));
+	link.link_duplex = ETH_LINK_FULL_DUPLEX;
+	link.link_speed = ETH_SPEED_NUM_10G;
+	link.link_autoneg = ETH_LINK_SPEED_FIXED;
+	vmxnet3_dev_atomic_write_link_status(eth_dev, &link);
+
 	return 0;
 }
 
@@ -857,6 +865,9 @@ vmxnet3_dev_stop(struct rte_eth_dev *dev)
 
 	/* Clear recorded link status */
 	memset(&link, 0, sizeof(link));
+	link.link_duplex = ETH_LINK_FULL_DUPLEX;
+	link.link_speed = ETH_SPEED_NUM_10G;
+	link.link_autoneg = ETH_LINK_SPEED_FIXED;
 	vmxnet3_dev_atomic_write_link_status(dev, &link);
 }
 
@@ -1145,12 +1156,11 @@ __vmxnet3_dev_link_update(struct rte_eth_dev *dev,
 	VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_GET_LINK);
 	ret = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_CMD);
 
-	if (ret & 0x1) {
+	if (ret & 0x1)
 		link.link_status = ETH_LINK_UP;
-		link.link_duplex = ETH_LINK_FULL_DUPLEX;
-		link.link_speed = ETH_SPEED_NUM_10G;
-		link.link_autoneg = ETH_LINK_AUTONEG;
-	}
+	link.link_duplex = ETH_LINK_FULL_DUPLEX;
+	link.link_speed = ETH_SPEED_NUM_10G;
+	link.link_autoneg = ETH_LINK_AUTONEG;
 
 	vmxnet3_dev_atomic_write_link_status(dev, &link);
 
-- 
2.9.5