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if_link: Add an additional parameter to ifla_vf_info for RSS querying

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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>
This commit is contained in:
Vlad Zolotarov
2015-03-30 21:35:23 +03:00
committed by Jeff Kirsher
parent 7f276efb45
commit 01a3d79681
4 changed files with 43 additions and 6 deletions
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8
include/uapi/linux/if_link.h
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@@ -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: