From owner-svn-src-stable@freebsd.org Thu Jun 16 05:24:01 2016 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 B600FA4752F; Thu, 16 Jun 2016 05:24:01 +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 92AF625BC; Thu, 16 Jun 2016 05:24:01 +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 u5G5O0s4098995; Thu, 16 Jun 2016 05:24:00 GMT (envelope-from sephe@FreeBSD.org) Received: (from sephe@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id u5G5O0bg098992; Thu, 16 Jun 2016 05:24:00 GMT (envelope-from sephe@FreeBSD.org) Message-Id: <201606160524.u5G5O0bg098992@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: sephe set sender to sephe@FreeBSD.org using -f From: Sepherosa Ziehau Date: Thu, 16 Jun 2016 05:24:00 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r301952 - stable/10/sys/dev/hyperv/netvsc X-SVN-Group: stable-10 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: 2.1.22 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: Thu, 16 Jun 2016 05:24:01 -0000 Author: sephe Date: Thu Jun 16 05:24:00 2016 New Revision: 301952 URL: https://svnweb.freebsd.org/changeset/base/301952 Log: MFC 297809,297810,297811 297809 hyperv/hn: Cap default # of rings to 8. 8 gives the best performance in both Azure and local Hyper-V on both 10Ge and 40Ge. More rings are still allowed by manual configuration. Reviewed by: Dexuan Cui MFC after: 1 week Sponsored by: Microsoft OSTC Differential Revision: https://reviews.freebsd.org/D5879 297810 hyperv/hn: By default enable multiple TX/RX rings, aka vRSS. Reviewed by: Dexuan Cui MFC after: 1 week Sponsored by: Microsoft OSTC Differential Revision: https://reviews.freebsd.org/D5880 297811 hyperv/hn: Remove unnecessary NULL checks Submitted by: Jun Su Reviewed by: sephe MFC after: 1 week Sponsored by: Microsoft OSTC Differential Revision: https://reviews.freebsd.org/D5905 Modified: stable/10/sys/dev/hyperv/netvsc/hv_net_vsc.c stable/10/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c stable/10/sys/dev/hyperv/netvsc/hv_rndis_filter.c Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/dev/hyperv/netvsc/hv_net_vsc.c ============================================================================== --- stable/10/sys/dev/hyperv/netvsc/hv_net_vsc.c Thu Jun 16 05:12:28 2016 (r301951) +++ stable/10/sys/dev/hyperv/netvsc/hv_net_vsc.c Thu Jun 16 05:24:00 2016 (r301952) @@ -741,10 +741,8 @@ cleanup: * Free the packet buffers on the netvsc device packet queue. * Release other resources. */ - if (net_dev) { - sema_destroy(&net_dev->channel_init_sema); - free(net_dev, M_NETVSC); - } + sema_destroy(&net_dev->channel_init_sema); + free(net_dev, M_NETVSC); return (NULL); } Modified: stable/10/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c ============================================================================== --- stable/10/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c Thu Jun 16 05:12:28 2016 (r301951) +++ stable/10/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c Thu Jun 16 05:24:00 2016 (r301952) @@ -138,6 +138,8 @@ __FBSDID("$FreeBSD$"); #define HN_LROENT_CNT_DEF 128 +#define HN_RING_CNT_DEF_MAX 8 + #define HN_RNDIS_MSG_LEN \ (sizeof(rndis_msg) + \ RNDIS_HASH_PPI_SIZE + \ @@ -282,12 +284,12 @@ static int hn_use_if_start = 0; SYSCTL_INT(_hw_hn, OID_AUTO, use_if_start, CTLFLAG_RDTUN, &hn_use_if_start, 0, "Use if_start TX method"); -static int hn_chan_cnt = 1; +static int hn_chan_cnt = 0; SYSCTL_INT(_hw_hn, OID_AUTO, chan_cnt, CTLFLAG_RDTUN, &hn_chan_cnt, 0, "# of channels to use; each channel has one RX ring and one TX ring"); -static int hn_tx_ring_cnt = 1; +static int hn_tx_ring_cnt = 0; SYSCTL_INT(_hw_hn, OID_AUTO, tx_ring_cnt, CTLFLAG_RDTUN, &hn_tx_ring_cnt, 0, "# of TX rings to use"); @@ -480,8 +482,14 @@ netvsc_attach(device_t dev) * The # of RX rings to use is same as the # of channels to use. */ ring_cnt = hn_chan_cnt; - if (ring_cnt <= 0 || ring_cnt > mp_ncpus) + if (ring_cnt <= 0) { + /* Default */ + ring_cnt = mp_ncpus; + if (ring_cnt > HN_RING_CNT_DEF_MAX) + ring_cnt = HN_RING_CNT_DEF_MAX; + } else if (ring_cnt > mp_ncpus) { ring_cnt = mp_ncpus; + } tx_ring_cnt = hn_tx_ring_cnt; if (tx_ring_cnt <= 0 || tx_ring_cnt > ring_cnt) Modified: stable/10/sys/dev/hyperv/netvsc/hv_rndis_filter.c ============================================================================== --- stable/10/sys/dev/hyperv/netvsc/hv_rndis_filter.c Thu Jun 16 05:12:28 2016 (r301951) +++ stable/10/sys/dev/hyperv/netvsc/hv_rndis_filter.c Thu Jun 16 05:24:00 2016 (r301952) @@ -406,8 +406,7 @@ hv_rf_send_offload_request(struct hv_dev } cleanup: - if (request) - hv_put_rndis_request(rndis_dev, request); + hv_put_rndis_request(rndis_dev, request); return (ret); } @@ -908,10 +907,8 @@ hv_rf_halt_device(rndis_device *device) } device->state = RNDIS_DEV_UNINITIALIZED; - - if (request != NULL) { - hv_put_rndis_request(device, request); - } + + hv_put_rndis_request(device, request); return (0); }