net/core: Add reading VF statistics through the PF netdevice

Add ndo_get_vf_stats where the PF retrieves and fills the VFs traffic
statistics. We encode the VF stats in a nested manner to allow for
future extensions.

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 0 deletions

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 6f5f71ff5169..e20979dfd6a9 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1100,6 +1100,10 @@ struct net_device_ops {
                                                      struct ifla_vf_info *ivf);
         int                     (*ndo_set_vf_link_state)(struct net_device *dev,
                                                          int vf, int link_state);
+        int                     (*ndo_get_vf_stats)(struct net_device *dev,
+                                                    int vf,
+                                                    struct ifla_vf_stats
+                                                    *vf_stats);
         int                     (*ndo_set_vf_port)(struct net_device *dev,
                                                    int vf,
                                                    struct nlattr *port[]);