> 
> > diff --git a/drivers/infiniband/core/sysfs.c
> > b/drivers/infiniband/core/sysfs.c
> > index cbd0383..aa53e40 100644
> > --- a/drivers/infiniband/core/sysfs.c
> > +++ b/drivers/infiniband/core/sysfs.c
> > @@ -248,14 +248,10 @@ static ssize_t phys_state_show(struct ib_port *p,
> > struct port_attribute *unused,
> >  static ssize_t link_layer_show(struct ib_port *p, struct port_attribute
> > *unused,
> >                            char *buf)
> >  {
> > -   switch (rdma_port_get_link_layer(p->ibdev, p->port_num)) {
> > -   case IB_LINK_LAYER_INFINIBAND:
> > +   if (rdma_transport_ib(p->ibdev, p->port_num))
> >             return sprintf(buf, "%s\n", "InfiniBand");
> > -   case IB_LINK_LAYER_ETHERNET:
> > +   else
> >             return sprintf(buf, "%s\n", "Ethernet");
> > -   default:
> > -           return sprintf(buf, "%s\n", "Unknown");
> > -   }
> >  }
> >
> >  static PORT_ATTR_RO(state);
> > diff --git a/drivers/infiniband/core/uverbs_cmd.c
> > b/drivers/infiniband/core/uverbs_cmd.c
> > index a9f0489..3eb6eb5 100644
> > --- a/drivers/infiniband/core/uverbs_cmd.c
> > +++ b/drivers/infiniband/core/uverbs_cmd.c
> > @@ -515,8 +515,10 @@ ssize_t ib_uverbs_query_port(struct ib_uverbs_file
> > *file,
> >     resp.active_width    = attr.active_width;
> >     resp.active_speed    = attr.active_speed;
> >     resp.phys_state      = attr.phys_state;
> > -   resp.link_layer      = rdma_port_get_link_layer(file->device-
> > >ib_dev,
> > -                                                   cmd.port_num);
> > +   resp.link_layer      = rdma_transport_ib(file->device->ib_dev,
> > +                                                   cmd.port_num) ?
> > +                          IB_LINK_LAYER_INFINIBAND :
> > +                          IB_LINK_LAYER_ETHERNET;
> >
> >     if (copy_to_user((void __user *) (unsigned long) cmd.response,
> >                      &resp, sizeof resp))
> 
> Both of the above check the transport in order to determine the link layer.
> 
> These values are exposed to user space.  Does anyone know what link layer 
> iWarp returns to user space?

Ethernet:

t4:~ # ibv_devinfo -d cxgb4_0|grep link_layer
                        link_layer:             Ethernet
                        link_layer:             Ethernet

Steve.

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