From owner-svn-src-all@freebsd.org Wed Feb 22 06:12:34 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 E6C78CE87E2; Wed, 22 Feb 2017 06:12:34 +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 B30AF279; Wed, 22 Feb 2017 06:12:34 +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 v1M6CXBk000389; Wed, 22 Feb 2017 06:12:33 GMT (envelope-from dexuan@FreeBSD.org) Received: (from dexuan@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id v1M6CXmw000388; Wed, 22 Feb 2017 06:12:33 GMT (envelope-from dexuan@FreeBSD.org) Message-Id: <201702220612.v1M6CXmw000388@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 06:12:33 +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: r314084 - stable/11/sys/dev/hyperv/netvsc 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: Wed, 22 Feb 2017 06:12:35 -0000 Author: dexuan Date: Wed Feb 22 06:12:33 2017 New Revision: 314084 URL: https://svnweb.freebsd.org/changeset/base/314084 Log: MFC: 312686 Approved by: sephe (mentor) r312686 hyperv/hn: remove the MTU and IFF_DRV_RUNNING checking in hn_rxpkt() It's unnecessary because the upper nework stack does the same checking. In the case of Hyper-V SR-IOV, we need to remove the checking because 1) multicast/broadcast packets are still received through the synthetic NIC and we need to inject the packets through the VF interface; 2) we must inject the packets even if the synthetic NIC is down, or has a different MTU from the VF device. Reviewed by: sephe Approved by: sephe (mentor) Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8962 Modified: stable/11/sys/dev/hyperv/netvsc/if_hn.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/dev/hyperv/netvsc/if_hn.c ============================================================================== --- stable/11/sys/dev/hyperv/netvsc/if_hn.c Wed Feb 22 06:06:58 2017 (r314083) +++ stable/11/sys/dev/hyperv/netvsc/if_hn.c Wed Feb 22 06:12:33 2017 (r314084) @@ -2129,15 +2129,7 @@ hn_rxpkt(struct hn_rx_ring *rxr, const v int size, do_lro = 0, do_csum = 1; int hash_type; - if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) - return (0); - - /* - * Bail out if packet contains more data than configured MTU. - */ - if (dlen > (ifp->if_mtu + ETHER_HDR_LEN)) { - return (0); - } else if (dlen <= MHLEN) { + if (dlen <= MHLEN) { m_new = m_gethdr(M_NOWAIT, MT_DATA); if (m_new == NULL) { if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1);