On Thu, Apr 8, 2021 at 11:10 AM Leon Romanovsky <leon@xxxxxxxxxx> wrote: > > On Thu, Apr 08, 2021 at 10:34:35AM +0200, Jack Wang wrote: > > When "enhanced IPoIB" enabled for CX-5 devices, it requires > > the parent device to be UP, otherwise the child devices won't > > work.[1] > > > > This add a debug message to give admin a hint, if only child interface > > is UP, but parent interface is not. > > > > [1]https://lore.kernel.org/linux-rdma/CAMGffE=3YYxv9i7_qQr3-Uv-NGr-7VsnMk8DTjR0YbX1vJBzXQ@xxxxxxxxxxxxxx/T/#u > > Signed-off-by: Jack Wang <jinpu.wang@xxxxxxxxx> > > --- > > drivers/infiniband/ulp/ipoib/ipoib_main.c | 6 +++++- > > 1 file changed, 5 insertions(+), 1 deletion(-) > > > > diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c > > index e16b40c09f82..782b792985b8 100644 > > --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c > > +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c > > @@ -164,8 +164,12 @@ 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 deivce %s is not up, so child may be not functioning.\n", ((struct ipoib_dev_priv *) ppriv)->dev->name); > > Why do you need extra casting? "ppriv" is already "struct ipoib_dev_priv *". Indeed, will remove that. Thanks > > Thanks > > > + } > > netif_start_queue(dev); > > > > return 0; > > -- > > 2.25.1 > >
