if_link: Add additional parameter to IFLA_VF_INFO for spoof checking

Add configuration setting for drivers to turn spoof checking on or off
for discrete VFs.

v2 - Fix indentation problem, wrap the ifla_vf_info structure in
     #ifdef __KERNEL__ to prevent user space from accessing and
     change function paramater for the spoof check setting netdev
     op from u8 to bool.
v3 - Preset spoof check setting to -1 so that user space tools such
     as ip can detect that the driver didn't report a spoofcheck
     setting.  Prevents incorrect display of spoof check settings
     for drivers that don't report it.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

2 files changed, 13 insertions, 0 deletions

diff --git a/include/linux/if_link.h b/include/linux/if_link.h
index 0ee969a5593d..c52d4b5f872a 100644
--- a/include/linux/if_link.h
+++ b/include/linux/if_link.h
@@ -279,6 +279,7 @@ enum {
         IFLA_VF_MAC,            /* Hardware queue specific attributes */
         IFLA_VF_VLAN,
         IFLA_VF_TX_RATE,        /* TX Bandwidth Allocation */
+        IFLA_VF_SPOOFCHK,       /* Spoof Checking on/off switch */
         __IFLA_VF_MAX,
 };
 
@@ -300,13 +301,22 @@ struct ifla_vf_tx_rate {
         __u32 rate; /* Max TX bandwidth in Mbps, 0 disables throttling */
 };
 
+struct ifla_vf_spoofchk {
+        __u32 vf;
+        __u32 setting;
+};
+#ifdef __KERNEL__
+
+/* We don't want this structure exposed to user space */
 struct ifla_vf_info {
         __u32 vf;
         __u8 mac[32];
         __u32 vlan;
         __u32 qos;
         __u32 tx_rate;
+        __u32 spoofchk;
 };
+#endif
 
 /* VF ports management section
  *
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 43b32983ba10..0db1f5f6d4a8 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -781,6 +781,7 @@ struct netdev_tc_txq {
  * int (*ndo_set_vf_mac)(struct net_device *dev, int vf, u8* mac);
  * int (*ndo_set_vf_vlan)(struct net_device *dev, int vf, u16 vlan, u8 qos);
  * int (*ndo_set_vf_tx_rate)(struct net_device *dev, int vf, int rate);
+ * int (*ndo_set_vf_spoofchk)(struct net_device *dev, int vf, bool setting);
  * int (*ndo_get_vf_config)(struct net_device *dev,
  *                          int vf, struct ifla_vf_info *ivf);
  * int (*ndo_set_vf_port)(struct net_device *dev, int vf,
@@ -900,6 +901,8 @@ struct net_device_ops {
                                                    int queue, u16 vlan, u8 qos);
         int                     (*ndo_set_vf_tx_rate)(struct net_device *dev,
                                                       int vf, int rate);
+        int                     (*ndo_set_vf_spoofchk)(struct net_device *dev,
+                                                       int vf, bool setting);
         int                     (*ndo_get_vf_config)(struct net_device *dev,
                                                      int vf,
                                                      struct ifla_vf_info *ivf);