net/qede: fix incorrect link status update

qede_link_update() always returns -1 i.e. link not changed,
because it compares the variables which always hold same value.

Fix this function by using rte_eth_linkstatus_set().

Fixes: 2ea6f76aff40 ("qede: add core driver")
Cc: stable@dpdk.org
Signed-off-by: Shahed Shaikh <shahed.shaikh@cavium.com>

diff --git a/drivers/net/qede/qede_ethdev.c b/drivers/net/qede/qede_ethdev.c
index cd9ec10..7a63d05 100644 (file)
--- a/drivers/net/qede/qede_ethdev.c
+++ b/drivers/net/qede/qede_ethdev.c
@@ -1590,18 +1590,20 @@ qede_link_update(struct rte_eth_dev *eth_dev, __rte_unused int wait_to_complete)
 {
        struct qede_dev *qdev = eth_dev->data->dev_private;
        struct ecore_dev *edev = &qdev->edev;
+       struct qed_link_output q_link;
+       struct rte_eth_link link;
        uint16_t link_duplex;
-       struct qed_link_output link;
-       struct rte_eth_link *curr = &eth_dev->data->dev_link;
 
-       memset(&link, 0, sizeof(struct qed_link_output));
-       qdev->ops->common->get_link(edev, &link);
+       memset(&q_link, 0, sizeof(q_link));
+       memset(&link, 0, sizeof(link));
+
+       qdev->ops->common->get_link(edev, &q_link);
 
        /* Link Speed */
-       curr->link_speed = link.speed;
+       link.link_speed = q_link.speed;
 
        /* Link Mode */
-       switch (link.duplex) {
+       switch (q_link.duplex) {
        case QEDE_DUPLEX_HALF:
                link_duplex = ETH_LINK_HALF_DUPLEX;
                break;
@@ -1612,21 +1614,20 @@ qede_link_update(struct rte_eth_dev *eth_dev, __rte_unused int wait_to_complete)
        default:
                link_duplex = -1;
        }
-       curr->link_duplex = link_duplex;
+       link.link_duplex = link_duplex;
 
        /* Link Status */
-       curr->link_status = (link.link_up) ? ETH_LINK_UP : ETH_LINK_DOWN;
+       link.link_status = q_link.link_up ? ETH_LINK_UP : ETH_LINK_DOWN;
 
        /* AN */
-       curr->link_autoneg = (link.supported_caps & QEDE_SUPPORTED_AUTONEG) ?
+       link.link_autoneg = (q_link.supported_caps & QEDE_SUPPORTED_AUTONEG) ?
                             ETH_LINK_AUTONEG : ETH_LINK_FIXED;
 
        DP_INFO(edev, "Link - Speed %u Mode %u AN %u Status %u\n",
-               curr->link_speed, curr->link_duplex,
-               curr->link_autoneg, curr->link_status);
+               link.link_speed, link.link_duplex,
+               link.link_autoneg, link.link_status);
 
-       /* return 0 means link status changed, -1 means not changed */
-       return ((curr->link_status == link.link_up) ? -1 : 0);
+       return rte_eth_linkstatus_set(eth_dev, &link);
 }
 
 static void qede_promiscuous_enable(struct rte_eth_dev *eth_dev)