From patchwork Mon Aug 7 09:10:02 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wenfeng Liu X-Patchwork-Id: 27467 Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [IPv6:::1]) by dpdk.org (Postfix) with ESMTP id 10CA33772; Mon, 7 Aug 2017 11:10:26 +0200 (CEST) Received: from mail01.arraynetworks.com.cn (mail.arraynetworks.com.cn [124.42.99.121]) by dpdk.org (Postfix) with ESMTP id CA512376C for ; Mon, 7 Aug 2017 11:10:23 +0200 (CEST) Received: from localhost.localdomain.localdomain (10.3.0.1) by mail01.arraynetworks.com.cn (10.3.0.251) with Microsoft SMTP Server id 14.3.123.3; Mon, 7 Aug 2017 17:01:16 +0800 From: Wenfeng Liu To: CC: Date: Mon, 7 Aug 2017 09:10:02 +0000 Message-ID: <1502097002-7143-1-git-send-email-liuwf@arraynetworks.com.cn> X-Mailer: git-send-email 1.8.3.1 MIME-Version: 1.0 X-Originating-IP: [10.3.0.1] Subject: [dpdk-dev] [PATCH v2] net/af_packet: support Tx scattered mbuf input X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Signed-off-by: Wenfeng Liu --- v2: * Fixed coding style issues reported by checkpatch drivers/net/af_packet/rte_eth_af_packet.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/drivers/net/af_packet/rte_eth_af_packet.c b/drivers/net/af_packet/rte_eth_af_packet.c index 9a47852..fabb915 100644 --- a/drivers/net/af_packet/rte_eth_af_packet.c +++ b/drivers/net/af_packet/rte_eth_af_packet.c @@ -216,7 +216,7 @@ struct pmd_internals { mbuf = *bufs++; /* drop oversized packets */ - if (rte_pktmbuf_data_len(mbuf) > pkt_q->frame_data_size) { + if (mbuf->pkt_len > pkt_q->frame_data_size) { rte_pktmbuf_free(mbuf); continue; } @@ -237,8 +237,17 @@ struct pmd_internals { /* copy the tx frame data */ pbuf = (uint8_t *) ppd + TPACKET2_HDRLEN - sizeof(struct sockaddr_ll); - memcpy(pbuf, rte_pktmbuf_mtod(mbuf, void*), rte_pktmbuf_data_len(mbuf)); - ppd->tp_len = ppd->tp_snaplen = rte_pktmbuf_data_len(mbuf); + + struct rte_mbuf *tmp_mbuf = mbuf; + while (tmp_mbuf) { + uint16_t data_len = rte_pktmbuf_data_len(tmp_mbuf); + memcpy(pbuf, rte_pktmbuf_mtod(tmp_mbuf, void*), data_len); + pbuf += data_len; + tmp_mbuf = tmp_mbuf->next; + } + + ppd->tp_len = mbuf->pkt_len; + ppd->tp_snaplen = mbuf->pkt_len; /* release incoming frame and advance ring buffer */ ppd->tp_status = TP_STATUS_SEND_REQUEST;