Date: Mon, 24 Jul 2017 03:32:10 +0000 (UTC) From: Sepherosa Ziehau <sephe@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r321406 - head/sys/net Message-ID: <201707240332.v6O3WAbh064357@repo.freebsd.org>
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Author: sephe Date: Mon Jul 24 03:32:10 2017 New Revision: 321406 URL: https://svnweb.freebsd.org/changeset/base/321406 Log: ethernet: Add ethernet interface attached event and devctl notification. ifnet_arrival_event may not be adequate under certain situation; e.g. when the LLADDR is needed. So the ethernet ifattach event is announced after all necessary bits are setup. MFC after: 3 days Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D11617 Modified: head/sys/net/ethernet.h head/sys/net/if_ethersubr.c Modified: head/sys/net/ethernet.h ============================================================================== --- head/sys/net/ethernet.h Mon Jul 24 02:13:46 2017 (r321405) +++ head/sys/net/ethernet.h Mon Jul 24 03:32:10 2017 (r321406) @@ -406,6 +406,12 @@ void ether_vlan_mtap(struct bpf_if *, struct mbuf *, void *, u_int); struct mbuf *ether_vlanencap(struct mbuf *, uint16_t); +#ifdef _SYS_EVENTHANDLER_H_ +/* new ethernet interface attached event */ +typedef void (*ether_ifattach_event_handler_t)(void *, struct ifnet *); +EVENTHANDLER_DECLARE(ether_ifattach_event, ether_ifattach_event_handler_t); +#endif + #else /* _KERNEL */ #include <sys/cdefs.h> Modified: head/sys/net/if_ethersubr.c ============================================================================== --- head/sys/net/if_ethersubr.c Mon Jul 24 02:13:46 2017 (r321405) +++ head/sys/net/if_ethersubr.c Mon Jul 24 03:32:10 2017 (r321406) @@ -38,6 +38,8 @@ #include <sys/param.h> #include <sys/systm.h> +#include <sys/bus.h> +#include <sys/eventhandler.h> #include <sys/kernel.h> #include <sys/lock.h> #include <sys/malloc.h> @@ -931,6 +933,11 @@ ether_ifattach(struct ifnet *ifp, const u_int8_t *lla) if_printf(ifp, "Ethernet address: %6D\n", lla, ":"); uuid_ether_add(LLADDR(sdl)); + + /* Add necessary bits are setup; announce it now. */ + EVENTHANDLER_INVOKE(ether_ifattach_event, ifp); + if (IS_DEFAULT_VNET(curvnet)) + devctl_notify("ETHERNET", ifp->if_xname, "IFATTACH", NULL); } /*
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