nfp: don't advertise hw-tc-offload on non-port netdevs

nfp_port is a structure which represents an ASIC port, both
PCIe vNIC (on a PF or a VF) or the external MAC port.  vNIC
netdev (struct nfp_net) and pure representor netdev (struct
nfp_repr) both have a pointer to this structure.  nfp_reprs
always have a port associated.  nfp_nets, however, only represent
a device port in legacy mode, where they are considered the
MAC port. In switchdev mode they are just the CPU's side of
the PCIe link.

By definition TC offloads only apply to device ports.  Don't
set the flag on vNICs without a port (i.e. in switchdev mode).

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Tested-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
index c0fd351c86b104c0ac87a2f8ca4bddbdb7a22817..fe77ea8b656c09fb64e564d010a52824a0b2b9ea 100644 (file)
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
@@ -3734,7 +3734,7 @@ static void nfp_net_netdev_init(struct nfp_net *nn)
 
        netdev->features = netdev->hw_features;
 
-       if (nfp_app_has_tc(nn->app))
+       if (nfp_app_has_tc(nn->app) && nn->port)
                netdev->hw_features |= NETIF_F_HW_TC;
 
        /* Advertise but disable TSO by default. */