From owner-svn-src-stable@freebsd.org Wed Feb 22 08:02:26 2017 Return-Path: Delivered-To: svn-src-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 03EC4CE9857; Wed, 22 Feb 2017 08:02:26 +0000 (UTC) (envelope-from dexuan@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id A5BE12E4; Wed, 22 Feb 2017 08:02:25 +0000 (UTC) (envelope-from dexuan@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id v1M82OS7044781; Wed, 22 Feb 2017 08:02:24 GMT (envelope-from dexuan@FreeBSD.org) Received: (from dexuan@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id v1M82OLg044779; Wed, 22 Feb 2017 08:02:24 GMT (envelope-from dexuan@FreeBSD.org) Message-Id: <201702220802.v1M82OLg044779@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: dexuan set sender to dexuan@FreeBSD.org using -f From: Dexuan Cui Date: Wed, 22 Feb 2017 08:02:24 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r314090 - stable/11/sys/net X-SVN-Group: stable-11 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: SVN commit messages for all the -stable branches of the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 22 Feb 2017 08:02:26 -0000 Author: dexuan Date: Wed Feb 22 08:02:24 2017 New Revision: 314090 URL: https://svnweb.freebsd.org/changeset/base/314090 Log: MFC: 312687, 312916 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 Modified: stable/11/sys/net/if.c stable/11/sys/net/if_var.h Modified: stable/11/sys/net/if.c ============================================================================== --- stable/11/sys/net/if.c Wed Feb 22 07:42:28 2017 (r314089) +++ stable/11/sys/net/if.c Wed Feb 22 08:02:24 2017 (r314090) @@ -2218,6 +2218,7 @@ void if_down(struct ifnet *ifp) { + EVENTHANDLER_INVOKE(ifnet_event, ifp, IFNET_EVENT_DOWN); if_unroute(ifp, IFF_UP, AF_UNSPEC); } @@ -2230,6 +2231,7 @@ if_up(struct ifnet *ifp) { if_route(ifp, IFF_UP, AF_UNSPEC); + EVENTHANDLER_INVOKE(ifnet_event, ifp, IFNET_EVENT_UP); } /* Modified: stable/11/sys/net/if_var.h ============================================================================== --- stable/11/sys/net/if_var.h Wed Feb 22 07:42:28 2017 (r314089) +++ stable/11/sys/net/if_var.h Wed Feb 22 08:02:24 2017 (r314090) @@ -359,6 +359,11 @@ EVENTHANDLER_DECLARE(ifnet_departure_eve /* 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); #endif /* _SYS_EVENTHANDLER_H_ */ /*