From owner-svn-src-all@freebsd.org Thu Sep 29 04:53:22 2016 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 548BFC00B60; Thu, 29 Sep 2016 04:53:22 +0000 (UTC) (envelope-from sephe@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 0BCB5D6; Thu, 29 Sep 2016 04:53:21 +0000 (UTC) (envelope-from sephe@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id u8T4rLlX017302; Thu, 29 Sep 2016 04:53:21 GMT (envelope-from sephe@FreeBSD.org) Received: (from sephe@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id u8T4rLLg017301; Thu, 29 Sep 2016 04:53:21 GMT (envelope-from sephe@FreeBSD.org) Message-Id: <201609290453.u8T4rLLg017301@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: sephe set sender to sephe@FreeBSD.org using -f From: Sepherosa Ziehau Date: Thu, 29 Sep 2016 04:53:21 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r306431 - head/sys/dev/hyperv/netvsc X-SVN-Group: head 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: Thu, 29 Sep 2016 04:53:22 -0000 Author: sephe Date: Thu Sep 29 04:53:21 2016 New Revision: 306431 URL: https://svnweb.freebsd.org/changeset/base/306431 Log: hyperv/hn: Move TX tasks' draining into hn_suspend(). This prepares to consolidate hn_stop() and netvsc_detach(). MFC after: 1 week Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8055 Modified: head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c Modified: head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c ============================================================================== --- head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c Thu Sep 29 02:14:08 2016 (r306430) +++ head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c Thu Sep 29 04:53:21 2016 (r306431) @@ -334,7 +334,6 @@ static void hn_fixup_tx_data(struct hn_s static void hn_destroy_tx_data(struct hn_softc *); static void hn_start_taskfunc(void *, int); static void hn_start_txeof_taskfunc(void *, int); -static void hn_stop_tx_tasks(struct hn_softc *); static int hn_encap(struct hn_tx_ring *, struct hn_txdesc *, struct mbuf **); static int hn_create_rx_data(struct hn_softc *sc, int); static void hn_destroy_rx_data(struct hn_softc *sc); @@ -757,8 +756,6 @@ netvsc_detach(device_t dev) hn_synth_detach(sc); HN_UNLOCK(sc); - hn_stop_tx_tasks(sc); - ifmedia_removeall(&sc->hn_media); hn_destroy_rx_data(sc); hn_destroy_tx_data(sc); @@ -2971,19 +2968,6 @@ hn_start_txeof_taskfunc(void *xtxr, int mtx_unlock(&txr->hn_tx_lock); } -static void -hn_stop_tx_tasks(struct hn_softc *sc) -{ - int i; - - for (i = 0; i < sc->hn_tx_ring_inuse; ++i) { - struct hn_tx_ring *txr = &sc->hn_tx_ring[i]; - - taskqueue_drain(txr->hn_tx_taskq, &txr->hn_tx_task); - taskqueue_drain(txr->hn_tx_taskq, &txr->hn_txeof_task); - } -} - static int hn_xmit(struct hn_tx_ring *txr, int len) { @@ -3571,6 +3555,9 @@ hn_suspend(struct hn_softc *sc) /* Wait for all pending sends to finish. */ while (hn_tx_ring_pending(txr)) pause("hnwtx", 1 /* 1 tick */); + + taskqueue_drain(txr->hn_tx_taskq, &txr->hn_tx_task); + taskqueue_drain(txr->hn_tx_taskq, &txr->hn_txeof_task); } /*