The branch main has been updated by wma:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=f2ab91608440338e5574eff098ad4f69e4541a1d

commit f2ab91608440338e5574eff098ad4f69e4541a1d
Author:     Andrey V. Elsukov <[email protected]>
AuthorDate: 2022-05-19 06:02:27 +0000
Commit:     Wojciech Macek <[email protected]>
CommitDate: 2022-05-20 04:38:43 +0000

    [vlan + lagg] add IFNET_EVENT_UPDATE_BAUDRATE event
    
    use it to update if_baudrate for vlan interfaces created on the LACP lagg.
    
    Differential revision:  https://reviews.freebsd.org/D33405
---
 sys/net/ieee8023ad_lacp.c |  2 ++
 sys/net/if_var.h          |  1 +
 sys/net/if_vlan.c         | 35 +++++++++++++++++++++++++++++++++++
 3 files changed, 38 insertions(+)

diff --git a/sys/net/ieee8023ad_lacp.c b/sys/net/ieee8023ad_lacp.c
index 1e2e638fcdf5..6656ebb2b400 100644
--- a/sys/net/ieee8023ad_lacp.c
+++ b/sys/net/ieee8023ad_lacp.c
@@ -1090,6 +1090,8 @@ lacp_update_portmap(struct lacp_softc *lsc)
                speed = lacp_aggregator_bandwidth(la);
        }
        sc->sc_ifp->if_baudrate = speed;
+       EVENTHANDLER_INVOKE(ifnet_event, sc->sc_ifp,
+           IFNET_EVENT_UPDATE_BAUDRATE);
 
        /* switch the active portmap over */
        atomic_store_rel_int(&lsc->lsc_activemap, newmap);
diff --git a/sys/net/if_var.h b/sys/net/if_var.h
index e054c613e9e6..2c09795c6b36 100644
--- a/sys/net/if_var.h
+++ b/sys/net/if_var.h
@@ -515,6 +515,7 @@ EVENTHANDLER_DECLARE(ifnet_link_event, 
ifnet_link_event_handler_t);
 #define IFNET_EVENT_UP         0
 #define IFNET_EVENT_DOWN       1
 #define IFNET_EVENT_PCP                2       /* priority code point, PCP */
+#define        IFNET_EVENT_UPDATE_BAUDRATE     3
 
 typedef void (*ifnet_event_fn)(void *, struct ifnet *ifp, int event);
 EVENTHANDLER_DECLARE(ifnet_event, ifnet_event_fn);
diff --git a/sys/net/if_vlan.c b/sys/net/if_vlan.c
index 2bb5284c2129..dc7a5fcb0c73 100644
--- a/sys/net/if_vlan.c
+++ b/sys/net/if_vlan.c
@@ -221,6 +221,7 @@ static MALLOC_DEFINE(M_VLAN, vlanname, "802.1Q Virtual LAN 
Interface");
 
 static eventhandler_tag ifdetach_tag;
 static eventhandler_tag iflladdr_tag;
+static eventhandler_tag ifevent_tag;
 
 /*
  * if_vlan uses two module-level synchronizations primitives to allow 
concurrent
@@ -327,6 +328,7 @@ static      int vlan_clone_destroy(struct if_clone *, 
struct ifnet *);
 
 static void vlan_ifdetach(void *arg, struct ifnet *ifp);
 static  void vlan_iflladdr(void *arg, struct ifnet *ifp);
+static  void vlan_ifevent(void *arg, struct ifnet *ifp, int event);
 
 static  void vlan_lladdr_fn(void *arg, int pending);
 
@@ -673,6 +675,34 @@ vlan_setmulti(struct ifnet *ifp)
        return (0);
 }
 
+/*
+ * A handler for interface ifnet events.
+ */
+static void
+vlan_ifevent(void *arg __unused, struct ifnet *ifp, int event)
+{
+       struct epoch_tracker et;
+       struct ifvlan *ifv;
+       struct ifvlantrunk *trunk;
+
+       if (event != IFNET_EVENT_UPDATE_BAUDRATE)
+               return;
+
+       NET_EPOCH_ENTER(et);
+       trunk = ifp->if_vlantrunk;
+       if (trunk == NULL) {
+               NET_EPOCH_EXIT(et);
+               return;
+       }
+
+       TRUNK_WLOCK(trunk);
+       VLAN_FOREACH(ifv, trunk) {
+               ifv->ifv_ifp->if_baudrate = ifp->if_baudrate;
+       }
+       TRUNK_WUNLOCK(trunk);
+       NET_EPOCH_EXIT(et);
+}
+
 /*
  * A handler for parent interface link layer address changes.
  * If the parent interface link layer address is changed we
@@ -886,6 +916,10 @@ vlan_modevent(module_t mod, int type, void *data)
                    vlan_iflladdr, NULL, EVENTHANDLER_PRI_ANY);
                if (iflladdr_tag == NULL)
                        return (ENOMEM);
+               ifevent_tag = EVENTHANDLER_REGISTER(ifnet_event,
+                   vlan_ifevent, NULL, EVENTHANDLER_PRI_ANY);
+               if (ifevent_tag == NULL)
+                       return (ENOMEM);
                VLAN_LOCKING_INIT();
                vlan_input_p = vlan_input;
                vlan_link_state_p = vlan_link_state;
@@ -916,6 +950,7 @@ vlan_modevent(module_t mod, int type, void *data)
 #endif
                EVENTHANDLER_DEREGISTER(ifnet_departure_event, ifdetach_tag);
                EVENTHANDLER_DEREGISTER(iflladdr_event, iflladdr_tag);
+               EVENTHANDLER_DEREGISTER(ifnet_event, ifevent_tag);
                vlan_input_p = NULL;
                vlan_link_state_p = NULL;
                vlan_trunk_cap_p = NULL;

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