When "enhanced IPoIB" enabled for CX-5 devices, it requires
the parent device to be UP, otherwise the child devices won't
work.
This add a debug message to give admin a hint, if only child interface
is UP, but parent interface is not.
Signed-off-by: Jack Wang <jinpu.wang@xxxxxxxxx>
---
drivers/infiniband/ulp/ipoib/ipoib_main.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index e16b40c09f82..df6329abac1d 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -164,8 +164,13 @@ int ipoib_open(struct net_device *dev)
dev_change_flags(cpriv->dev, flags | IFF_UP, NULL);
}
up_read(&priv->vlan_rwsem);
- }
+ } else if (priv->parent) {
+ struct ipoib_dev_priv *ppriv = ipoib_priv(priv->parent);
+ if (!test_bit(IPOIB_FLAG_ADMIN_UP, &ppriv->flags))
+ ipoib_dbg(priv, "parent device %s is not up, so child device may be not functioning.\n",
+ ppriv->dev->name);
+ }
netif_start_queue(dev);
return 0;
--
2.25.1
