From owner-svn-src-all@freebsd.org Mon Nov 28 05:31:38 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 21901C59CE5; Mon, 28 Nov 2016 05:31:38 +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 E53511300; Mon, 28 Nov 2016 05:31:37 +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 uAS5VbCo092924; Mon, 28 Nov 2016 05:31:37 GMT (envelope-from sephe@FreeBSD.org) Received: (from sephe@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id uAS5Vbw6092923; Mon, 28 Nov 2016 05:31:37 GMT (envelope-from sephe@FreeBSD.org) Message-Id: <201611280531.uAS5Vbw6092923@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: sephe set sender to sephe@FreeBSD.org using -f From: Sepherosa Ziehau Date: Mon, 28 Nov 2016 05:31:37 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r309228 - 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: Mon, 28 Nov 2016 05:31:38 -0000 Author: sephe Date: Mon Nov 28 05:31:36 2016 New Revision: 309228 URL: https://svnweb.freebsd.org/changeset/base/309228 Log: hyperv/hn: Fix multi-packet RNDIS message aggregation size setting. Just in case that no chimney sending buffer can be used. MFC after: 1 week Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8619 Modified: head/sys/dev/hyperv/netvsc/if_hn.c Modified: head/sys/dev/hyperv/netvsc/if_hn.c ============================================================================== --- head/sys/dev/hyperv/netvsc/if_hn.c Mon Nov 28 05:23:57 2016 (r309227) +++ head/sys/dev/hyperv/netvsc/if_hn.c Mon Nov 28 05:31:36 2016 (r309228) @@ -706,6 +706,10 @@ hn_set_txagg(struct hn_softc *sc) if (sc->hn_rndis_agg_size < size) size = sc->hn_rndis_agg_size; + /* NOTE: We only aggregate packets using chimney sending buffers. */ + if (size > (uint32_t)sc->hn_chim_szmax) + size = sc->hn_chim_szmax; + if (size <= 2 * HN_PKTSIZE_MIN(sc->hn_rndis_agg_align)) { /* Disable */ size = 0; @@ -717,10 +721,6 @@ hn_set_txagg(struct hn_softc *sc) if (size > INT_MAX) size = INT_MAX; - /* NOTE: We only aggregate packets using chimney sending buffers. */ - if (size > (uint32_t)sc->hn_chim_szmax) - size = sc->hn_chim_szmax; - /* * Setup aggregation packet count. */