Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue

Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2015-04-11

This series contains updates to iflink, ixgbe and ixgbevf.

The entire set of changes come from Vlad Zolotarov to ultimately add
the ethtool ops to VF driver to allow querying the RSS indirection table
and RSS random key.

Currently we support only 82599 and x540 devices.  On those devices, VFs
share the RSS redirection table and hash key with a PF.  Letting the VF
query this information may introduce some security risks, therefore this
feature will be disabled by default.

The new netdev op allows a system administrator to change the default
behaviour with "ip link set" command.  The relevant iproute2 patch has
already been sent and awaits for this series upstream.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 17 insertions, 0 deletions

diff --git a/include/linux/if_link.h b/include/linux/if_link.h
index 119130e9298b..da4929927f69 100644
--- a/include/linux/if_link.h
+++ b/include/linux/if_link.h
@@ -14,5 +14,6 @@ struct ifla_vf_info {
         __u32 linkstate;
         __u32 min_tx_rate;
         __u32 max_tx_rate;
+        __u32 rss_query_en;
 };
 #endif /* _LINUX_IF_LINK_H */
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index bf6d9df34d7b..13acb3d8ecdd 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -878,6 +878,11 @@ typedef u16 (*select_queue_fallback_t)(struct net_device *dev,
  * int (*ndo_set_vf_link_state)(struct net_device *dev, int vf, int link_state);
  * int (*ndo_set_vf_port)(struct net_device *dev, int vf,
  *                        struct nlattr *port[]);
+ *
+ *      Enable or disable the VF ability to query its RSS Redirection Table and
+ *      Hash Key. This is needed since on some devices VF share this information
+ *      with PF and querying it may adduce a theoretical security risk.
+ * int (*ndo_set_vf_rss_query_en)(struct net_device *dev, int vf, bool setting);
  * int (*ndo_get_vf_port)(struct net_device *dev, int vf, struct sk_buff *skb);
  * int (*ndo_setup_tc)(struct net_device *dev, u8 tc)
  *      Called to setup 'tc' number of traffic classes in the net device. This
@@ -1099,6 +1104,9 @@ struct net_device_ops {
                                                    struct nlattr *port[]);
         int                     (*ndo_get_vf_port)(struct net_device *dev,
                                                    int vf, struct sk_buff *skb);
+        int                     (*ndo_set_vf_rss_query_en)(
+                                                   struct net_device *dev,
+                                                   int vf, bool setting);
         int                     (*ndo_setup_tc)(struct net_device *dev, u8 tc);
 #if IS_ENABLED(CONFIG_FCOE)
         int                     (*ndo_fcoe_enable)(struct net_device *dev);
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index 7ffb18df01ca..d9cd19214b98 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -465,6 +465,9 @@ enum {
         IFLA_VF_SPOOFCHK,       /* Spoof Checking on/off switch */
         IFLA_VF_LINK_STATE,     /* link state enable/disable/auto switch */
         IFLA_VF_RATE,           /* Min and Max TX Bandwidth Allocation */
+        IFLA_VF_RSS_QUERY_EN,   /* RSS Redirection Table and Hash Key query
+                                 * on/off switch
+                                 */
         __IFLA_VF_MAX,
 };
 
@@ -509,6 +512,11 @@ struct ifla_vf_link_state {
         __u32 link_state;
 };
 
+struct ifla_vf_rss_query_en {
+        __u32 vf;
+        __u32 setting;
+};
+
 /* VF ports management section
  *
  *      Nested layout of set/get msg is: