Commit 3ccbd933 authored by Jack Wang's avatar Jack Wang Committed by Jason Gunthorpe
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RDMA/ipoib: Print a message if only child interface is UP 

When "enhanced IPoIB" is enabled for CX-5 devices it requires the parent
device to be UP, otherwise the child devices won't work.

Thus add a debug message to give admin a hint when only the child
interface is UP but parent interface is not.

Link: https://lore.kernel.org/r/20210408093215.24023-1-jinpu.wang@ionos.com


Signed-off-by: default avatarJack Wang <jinpu.wang@ionos.com>
Reviewed-by: default avatarLeon Romanovsky <leonro@nvidia.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
parent 719d1341

drivers/infiniband/ulp/ipoib/ipoib_main.c

+6 −1
Original line number Diff line number Diff line
@@ -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;