if_link: Add an additional parameter to ifla_vf_info for RSS querying

Add configuration setting for drivers to allow/block an RSS Redirection
Table and a Hash Key querying for discrete VFs.

On some devices VF share the mentioned above information with PF and
querying it may adduce a theoretical security risk. We want to let a
system administrator to decide if he/she wants to take this risk or not.

Signed-off-by: Vlad Zolotarov <vladz@cloudius-systems.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/include/linux/if_link.h b/include/linux/if_link.h
index 119130e..da49299 100644 (file)
--- 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 --cc include/linux/netdevice.h
Simple merge

diff --cc include/uapi/linux/if_link.h
Simple merge

diff --cc net/core/rtnetlink.c
Simple merge