From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by dpdk.org (Postfix) with ESMTP id 8078858EB for ; Thu, 13 Oct 2016 18:04:57 +0200 (CEST) Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga105.jf.intel.com with ESMTP; 13 Oct 2016 09:04:56 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.31,340,1473145200"; d="scan'208";a="19269551" Received: from yliu-dev.sh.intel.com (HELO yliu-dev) ([10.239.67.162]) by fmsmga005.fm.intel.com with ESMTP; 13 Oct 2016 09:04:54 -0700 Date: Fri, 14 Oct 2016 00:05:51 +0800 From: Yuanhan Liu To: Olivier Matz , Thomas Monjalon Cc: dev@dpdk.org, konstantin.ananyev@intel.com, sugesh.chandran@intel.com, bruce.richardson@intel.com, jianfeng.tan@intel.com, helin.zhang@intel.com, adrien.mazarguil@6wind.com, stephen@networkplumber.org, dprovan@bivio.net, xiao.w.wang@intel.com, maxime.coquelin@redhat.com Message-ID: <20161013160551.GB16751@yliu-dev.sh.intel.com> References: <1476368171-18176-1-git-send-email-olivier.matz@6wind.com> <1476368171-18176-13-git-send-email-olivier.matz@6wind.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1476368171-18176-13-git-send-email-olivier.matz@6wind.com> User-Agent: Mutt/1.5.23 (2014-03-12) Subject: Re: [dpdk-dev] [PATCH v3 12/12] net/virtio: add Tso support X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 13 Oct 2016 16:04:58 -0000 On Thu, Oct 13, 2016 at 04:16:11PM +0200, Olivier Matz wrote: > +/* When doing TSO, the IP length is not included in the pseudo header > + * checksum of the packet given to the PMD, but for virtio it is > + * expected. > + */ > +static void > +virtio_tso_fix_cksum(struct rte_mbuf *m) > +{ > + /* common case: header is not fragmented */ > + if (likely(rte_pktmbuf_data_len(m) >= m->l2_len + m->l3_len + > + m->l4_len)) { > + struct ipv4_hdr *iph; > + struct ipv6_hdr *ip6h; > + struct tcp_hdr *th; > + uint16_t prev_cksum, new_cksum, ip_len, ip_paylen; > + uint32_t tmp; ... > + } else { As discussed just now, if you drop the else part, you could add my ACK for the whole virtio changes, and Review-ed by for all mbuf and other changes. Thoams, please pick them by youself directly: since it depends on other patches and they will be picked (or already be picked?) by you. Thanks. --yliu