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| author | dexuan <dexuan@FreeBSD.org> | 2017-02-23 06:57:18 +0000 |
|---|---|---|
| committer | dexuan <dexuan@FreeBSD.org> | 2017-02-23 06:57:18 +0000 |
| commit | 801edb7982092c7fdc32ca79e679bc44e314d71f (patch) | |
| tree | daa74c25f21ff742b5c747f9c347872789bfa6ab | |
| parent | 2efa1535a98f7c89985bee7c9a39d33e1e15355c (diff) | |
| download | FreeBSD-src-801edb7982092c7fdc32ca79e679bc44e314d71f.zip FreeBSD-src-801edb7982092c7fdc32ca79e679bc44e314d71f.tar.gz | |
MFC: r312687, r312916
Approved by: sephe (mentor)
r312687
ifnet: introduce event handlers for ifup/ifdown events
Hyper-V's NIC SR-IOV implementation needs a Hyper-V synthetic NIC and
a VF NIC to work together, mainly to support seamless live migration.
When the VF device becomes UP (or DOWN), the synthetic NIC driver needs
to switch the data path from the synthetic NIC to the VF (or the opposite).
So the synthetic NIC driver needs to know when a VF device is becoming
UP or DOWN and hence the patch is made.
Reviewed by: sephe
Approved by: sephe (mentor)
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8963
r312916
ifnet: move the new ifnet_event EVENTHANDLER_DECLARE to net/if_var.h
Thank glebius for pointing this out:
"The network stuff shall not be added to sys/eventhandler.h"
Reviewed by: David_A_Bright_DELL.com, sephe, glebius
Approved by: sephe (mentor)
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D9345
| -rw-r--r-- | sys/net/if.c | 2 | ||||
| -rw-r--r-- | sys/net/if_var.h | 5 |
2 files changed, 7 insertions, 0 deletions
diff --git a/sys/net/if.c b/sys/net/if.c index 67f086b..625b6d0 100644 --- a/sys/net/if.c +++ b/sys/net/if.c @@ -2183,6 +2183,7 @@ void if_down(struct ifnet *ifp) { + EVENTHANDLER_INVOKE(ifnet_event, ifp, IFNET_EVENT_DOWN); if_unroute(ifp, IFF_UP, AF_UNSPEC); } @@ -2195,6 +2196,7 @@ if_up(struct ifnet *ifp) { if_route(ifp, IFF_UP, AF_UNSPEC); + EVENTHANDLER_INVOKE(ifnet_event, ifp, IFNET_EVENT_UP); } /* diff --git a/sys/net/if_var.h b/sys/net/if_var.h index 01ca26c..1456793 100644 --- a/sys/net/if_var.h +++ b/sys/net/if_var.h @@ -424,6 +424,11 @@ EVENTHANDLER_DECLARE(ifnet_departure_event, ifnet_departure_event_handler_t); /* Interface link state change event */ typedef void (*ifnet_link_event_handler_t)(void *, struct ifnet *, int); EVENTHANDLER_DECLARE(ifnet_link_event, ifnet_link_event_handler_t); +/* Interface up/down event */ +#define IFNET_EVENT_UP 0 +#define IFNET_EVENT_DOWN 1 +typedef void (*ifnet_event_fn)(void *, struct ifnet *ifp, int event); +EVENTHANDLER_DECLARE(ifnet_event, ifnet_event_fn); /* * interface groups |
