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net/core: Add VF link state control

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Add netlink directives and ndo entry to allow for controling
VF link, which can be in one of three states:

Auto - VF link state reflects the PF link state (default)

Up - VF link state is up, traffic from VF to VF works even if
the actual PF link is down

Down - VF link state is down, no traffic from/to this VF, can be of
use while configuring the VF

Signed-off-by: Rony Efraim <ronye@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Rony Efraim 2013-06-13 13:19:10 +03:00 • committed by David S. Miller
commit 1d8faf48c7
4 changed files with 37 additions and 2 deletions
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include/linux/if_link.h
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@ -12,5 +12,6 @@ struct ifla_vf_info {
__u32 qos;
__u32 tx_rate;
__u32 spoofchk;
__u32 linkstate;
};
#endif /* _LINUX_IF_LINK_H */