[PATCH v4 4/9] net/gve: add support for link update

[Junfeng Guo]

Support dev_ops link_update.

Signed-off-by: Xiaoyun Li <xiaoyun...@intel.com>
Signed-off-by: Junfeng Guo <junfeng....@intel.com>
---
 doc/guides/nics/features/gve.ini |  2 ++
 drivers/net/gve/gve_ethdev.c     | 30 ++++++++++++++++++++++++++++++
 2 files changed, 32 insertions(+)

diff --git a/doc/guides/nics/features/gve.ini b/doc/guides/nics/features/gve.ini
index 44aec28009..d03e3ac89e 100644
--- a/doc/guides/nics/features/gve.ini
+++ b/doc/guides/nics/features/gve.ini
@@ -4,6 +4,8 @@
 ; Refer to default.ini for the full list of available PMD features.
 ;
 [Features]
+Speed capabilities   = Y
+Link status          = Y
 Linux                = Y
 x86-32               = Y
 x86-64               = Y
diff --git a/drivers/net/gve/gve_ethdev.c b/drivers/net/gve/gve_ethdev.c
index df698c1b02..43112d901a 100644
--- a/drivers/net/gve/gve_ethdev.c
+++ b/drivers/net/gve/gve_ethdev.c
@@ -34,10 +34,39 @@ gve_dev_configure(__rte_unused struct rte_eth_dev *dev)
        return 0;
 }
 
+static int
+gve_link_update(struct rte_eth_dev *dev, __rte_unused int wait_to_complete)
+{
+       struct gve_priv *priv = dev->data->dev_private;
+       struct rte_eth_link link;
+       int err;
+
+       memset(&link, 0, sizeof(link));
+       link.link_duplex = RTE_ETH_LINK_FULL_DUPLEX;
+       link.link_autoneg = RTE_ETH_LINK_AUTONEG;
+
+       if (!dev->data->dev_started) {
+               link.link_status = RTE_ETH_LINK_DOWN;
+               link.link_speed = RTE_ETH_SPEED_NUM_NONE;
+       } else {
+               link.link_status = RTE_ETH_LINK_UP;
+               PMD_DRV_LOG(DEBUG, "Get link status from hw");
+               err = gve_adminq_report_link_speed(priv);
+               if (err) {
+                       PMD_DRV_LOG(ERR, "Failed to get link speed.");
+                       priv->link_speed = RTE_ETH_SPEED_NUM_UNKNOWN;
+               }
+               link.link_speed = priv->link_speed;
+       }
+
+       return rte_eth_linkstatus_set(dev, &link);
+}
+
 static int
 gve_dev_start(struct rte_eth_dev *dev)
 {
        dev->data->dev_started = 1;
+       gve_link_update(dev, 0);
 
        return 0;
 }
@@ -70,6 +99,7 @@ static const struct eth_dev_ops gve_eth_dev_ops = {
        .dev_start            = gve_dev_start,
        .dev_stop             = gve_dev_stop,
        .dev_close            = gve_dev_close,
+       .link_update          = gve_link_update,
 };
 
 static void
-- 
2.34.1