nfp: inform the VF driver needs to be restarted after changing the MAC

Add message to inform the VF MAC was changed and the need to restart
the VF driver for the changes to be effective.

Signed-off-by: Pablo Cascón <pablo.cascon@netronome.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_sriov.c b/drivers/net/ethernet/netronome/nfp/nfp_net_sriov.c
index e6d2e06b050ccc35d5c64a948b3dfdd22177a905..8b1b962cf1d1901164779374f4d2a75569f50fe1 100644 (file)
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_sriov.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_sriov.c
@@ -112,7 +112,13 @@ int nfp_app_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
        writew(get_unaligned_be16(mac + 4),
               app->pf->vfcfg_tbl2 + vf_offset + NFP_NET_VF_CFG_MAC_LO);
 
-       return nfp_net_sriov_update(app, vf, NFP_NET_VF_CFG_MB_UPD_MAC, "MAC");
+       err = nfp_net_sriov_update(app, vf, NFP_NET_VF_CFG_MB_UPD_MAC, "MAC");
+       if (!err)
+               nfp_info(app->pf->cpp,
+                        "MAC %pM set on VF %d, reload the VF driver to make this change effective.\n",
+                        mac, vf);
+
+       return err;
 }
 
 int nfp_app_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos,