From owner-svn-src-all@freebsd.org Tue Mar 21 08:38:14 2017 Return-Path: Delivered-To: svn-src-all@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 1A5B4D16E2C; Tue, 21 Mar 2017 08:38:14 +0000 (UTC) (envelope-from royger@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 E92EC1831; Tue, 21 Mar 2017 08:38:13 +0000 (UTC) (envelope-from royger@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id v2L8cDqO006168; Tue, 21 Mar 2017 08:38:13 GMT (envelope-from royger@FreeBSD.org) Received: (from royger@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id v2L8cCAJ006163; Tue, 21 Mar 2017 08:38:12 GMT (envelope-from royger@FreeBSD.org) Message-Id: <201703210838.v2L8cCAJ006163@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: royger set sender to royger@FreeBSD.org using -f From: =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= Date: Tue, 21 Mar 2017 08:38:12 +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: r315668 - in stable/11/sys: dev/xen/blkfront dev/xen/control dev/xen/netfront xen xen/xenbus X-SVN-Group: stable-11 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 21 Mar 2017 08:38:14 -0000 Author: royger Date: Tue Mar 21 08:38:12 2017 New Revision: 315668 URL: https://svnweb.freebsd.org/changeset/base/315668 Log: MFC r314840: xen: add support for canceled suspend Submitted by: Liuyingdong Reviewed by: royger Modified: stable/11/sys/dev/xen/blkfront/blkfront.c stable/11/sys/dev/xen/control/control.c stable/11/sys/dev/xen/netfront/netfront.c stable/11/sys/xen/xen-os.h stable/11/sys/xen/xenbus/xenbusb.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/dev/xen/blkfront/blkfront.c ============================================================================== --- stable/11/sys/dev/xen/blkfront/blkfront.c Tue Mar 21 08:36:25 2017 (r315667) +++ stable/11/sys/dev/xen/blkfront/blkfront.c Tue Mar 21 08:38:12 2017 (r315668) @@ -1537,6 +1537,11 @@ xbd_resume(device_t dev) { struct xbd_softc *sc = device_get_softc(dev); + if (xen_suspend_cancelled) { + sc->xbd_state = XBD_STATE_CONNECTED; + return (0); + } + DPRINTK("xbd_resume: %s\n", xenbus_get_node(dev)); xbd_free(sc); Modified: stable/11/sys/dev/xen/control/control.c ============================================================================== --- stable/11/sys/dev/xen/control/control.c Tue Mar 21 08:36:25 2017 (r315667) +++ stable/11/sys/dev/xen/control/control.c Tue Mar 21 08:38:12 2017 (r315668) @@ -148,6 +148,7 @@ __FBSDID("$FreeBSD$"); #include +bool xen_suspend_cancelled; /*--------------------------- Forward Declarations --------------------------*/ /** Function signature for shutdown event handlers. */ typedef void (xctrl_shutdown_handler_t)(void); @@ -196,7 +197,6 @@ xctrl_suspend() #ifdef SMP cpuset_t cpu_suspend_map; #endif - int suspend_cancelled; EVENTHANDLER_INVOKE(power_suspend_early); xs_lock(); @@ -269,16 +269,20 @@ xctrl_suspend() intr_suspend(); xen_hvm_suspend(); - suspend_cancelled = HYPERVISOR_suspend(0); + xen_suspend_cancelled = !!HYPERVISOR_suspend(0); - xen_hvm_resume(suspend_cancelled != 0); - intr_resume(suspend_cancelled != 0); + if (!xen_suspend_cancelled) { + xen_hvm_resume(false); + } + intr_resume(xen_suspend_cancelled != 0); enable_intr(); /* * Reset grant table info. */ - gnttab_resume(NULL); + if (!xen_suspend_cancelled) { + gnttab_resume(NULL); + } #ifdef SMP if (!CPU_EMPTY(&cpu_suspend_map)) { Modified: stable/11/sys/dev/xen/netfront/netfront.c ============================================================================== --- stable/11/sys/dev/xen/netfront/netfront.c Tue Mar 21 08:36:25 2017 (r315667) +++ stable/11/sys/dev/xen/netfront/netfront.c Tue Mar 21 08:38:12 2017 (r315668) @@ -439,6 +439,20 @@ static int netfront_resume(device_t dev) { struct netfront_info *info = device_get_softc(dev); + u_int i; + + if (xen_suspend_cancelled) { + for (i = 0; i < info->num_queues; i++) { + XN_RX_LOCK(&info->rxq[i]); + XN_TX_LOCK(&info->txq[i]); + } + netfront_carrier_on(info); + for (i = 0; i < info->num_queues; i++) { + XN_RX_UNLOCK(&info->rxq[i]); + XN_TX_UNLOCK(&info->txq[i]); + } + return (0); + } netif_disconnect_backend(info); return (0); Modified: stable/11/sys/xen/xen-os.h ============================================================================== --- stable/11/sys/xen/xen-os.h Tue Mar 21 08:36:25 2017 (r315667) +++ stable/11/sys/xen/xen-os.h Tue Mar 21 08:38:12 2017 (r315668) @@ -56,6 +56,8 @@ extern char *console_page; extern int xen_disable_pv_disks; extern int xen_disable_pv_nics; +extern bool xen_suspend_cancelled; + enum xen_domain_type { XEN_NATIVE, /* running on bare hardware */ XEN_PV_DOMAIN, /* running in a PV domain */ Modified: stable/11/sys/xen/xenbus/xenbusb.c ============================================================================== --- stable/11/sys/xen/xenbus/xenbusb.c Tue Mar 21 08:36:25 2017 (r315667) +++ stable/11/sys/xen/xenbus/xenbusb.c Tue Mar 21 08:38:12 2017 (r315668) @@ -791,6 +791,11 @@ xenbusb_resume(device_t dev) if (device_get_state(kids[i]) == DS_NOTPRESENT) continue; + if (xen_suspend_cancelled) { + DEVICE_RESUME(kids[i]); + continue; + } + ivars = device_get_ivars(kids[i]); xs_unregister_watch(&ivars->xd_otherend_watch);