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iplink: Support VF Trust 

Add IFLA_VF_TRUST message to trust the VF.
PF can accept some privileged operation from the trusted VF.
For example, ixgbe PF doesn't allow to enable VF promiscuous mode until
the VF is trusted because it may hurt performance.

To trust VF.
 # ip link set dev eth0 vf 1 trust on

To untrust VF.
 # ip link set dev eth0 vf 1 trust off

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
This commit is contained in:
Hiroshi Shimamoto 2016-02-26 02:40:18 +00:00 committed by Stephen Hemminger
parent 8a4cd3943f
commit b6d77d9ee3
2 changed files with 19 additions and 1 deletions
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13
ip/iplink.c
View File

@ -82,6 +82,7 @@ void iplink_usage(void)
fprintf(stderr, " [ spoofchk { on | off} ] ]\n");
fprintf(stderr, " [ query_rss { on | off} ] ]\n");
fprintf(stderr, " [ state { auto | enable | disable} ] ]\n");
fprintf(stderr, " [ trust { on | off} ] ]\n");
fprintf(stderr, " [ master DEVICE ]\n");
fprintf(stderr, " [ nomaster ]\n");
fprintf(stderr, " [ addrgenmode { eui64 | none | stable_secret | random } ]\n");
@ -356,6 +357,18 @@ static int iplink_parse_vf(int vf, int *argcp, char ***argvp,
ivs.vf = vf;
addattr_l(&req->n, sizeof(*req), IFLA_VF_RSS_QUERY_EN, &ivs, sizeof(ivs));
} else if (matches(*argv, "trust") == 0) {
struct ifla_vf_trust ivt;
NEXT_ARG();
if (matches(*argv, "on") == 0)
ivt.setting = 1;
else if (matches(*argv, "off") == 0)
ivt.setting = 0;
else
invarg("Invalid \"trust\" value\n", *argv);
ivt.vf = vf;
addattr_l(&req->n, sizeof(*req), IFLA_VF_TRUST, &ivt, sizeof(ivt));
} else if (matches(*argv, "state") == 0) {
struct ifla_vf_link_state ivl;

7
man/man8/ip-link.8.in
View File

@ -142,7 +142,8 @@ ip-link \- network device configuration
.B min_tx_rate
.IR TXRATE " ] ["
.B spoofchk { on | off } ] [
.B state { auto | enable | disable}
.B state { auto | enable | disable} ] [
.B trust { on | off }
] |
.br
.B master
@ -1019,6 +1020,10 @@ parameter must be specified.
reflection of the PF link state, enable lets the VF to communicate with other VFs on
this host even if the PF link state is down, disable causes the HW to drop any packets
sent by the VF.
.sp
.BI trust " on|off"
- trust the specified VF user. This enables that VF user can set a specific feature
which may impact security and/or performance. (e.g. VF multicast promiscuous mode)
.in -8
.TP