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ip link set vf: Added "query_rss" command

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Add a new option to toggle the ability of querying the RSS configuration of a specific VF.

VF RSS information like RSS hash key may be considered sensitive on some devices where
this information is shared between VF and PF and thus its querying may be prohibited by default.

This new option allows a system administrator with privileges to modify a PF state
to control if the above VF querying is allowed or not.

For example:
 To enable RSS querying of VF[0] of ethX:
 >> ip link set dev ethX vf 0 query_rss on

Signed-off-by: Vlad Zolotarov <vladz@cloudius-systems.com>
This commit is contained in:
Vlad Zolotarov 2015-04-30 13:46:43 +03:00 committed by Stephen Hemminger
parent 8916ccf66c
commit 6c55c8c461
1 changed files with 13 additions and 0 deletions
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13
ip/iplink.c
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@ -80,6 +80,7 @@ void iplink_usage(void)
fprintf(stderr, " [ rate TXRATE ] ] \n");
fprintf(stderr, " [ spoofchk { on | off} ] ] \n");
fprintf(stderr, " [ query_rss { on | off} ] ] \n");
fprintf(stderr, " [ state { auto | enable | disable} ] ]\n");
fprintf(stderr, " [ master DEVICE ]\n");
fprintf(stderr, " [ nomaster ]\n");
@ -331,6 +332,18 @@ static int iplink_parse_vf(int vf, int *argcp, char ***argvp,
ivs.vf = vf;
addattr_l(&req->n, sizeof(*req), IFLA_VF_SPOOFCHK, &ivs, sizeof(ivs));
} else if (matches(*argv, "query_rss") == 0) {
struct ifla_vf_rss_query_en ivs;
NEXT_ARG();
if (matches(*argv, "on") == 0)
ivs.setting = 1;
else if (matches(*argv, "off") == 0)
ivs.setting = 0;
else
invarg("Invalid \"query_rss\" value\n", *argv);
ivs.vf = vf;
addattr_l(&req->n, sizeof(*req), IFLA_VF_RSS_QUERY_EN, &ivs, sizeof(ivs));
} else if (matches(*argv, "state") == 0) {
struct ifla_vf_link_state ivl;
NEXT_ARG();