From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f170.google.com (mail-pd0-f170.google.com [209.85.192.170]) by dpdk.org (Postfix) with ESMTP id B5C653F9 for ; Wed, 17 Dec 2014 06:13:49 +0100 (CET) Received: by mail-pd0-f170.google.com with SMTP id v10so15429905pde.1 for ; Tue, 16 Dec 2014 21:13:49 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=Ux9NcjGULd3ZZSrDufKO5GFHLlp+jHB2DzFHpguaorc=; b=T5EPMq3s0degbV1GPzaklaxE/bFuD6YgfIvEvumm4KAEBRzrecNJ/2jo3BNX7slsC6 hyt/Zc+Wv8eRWNxH/W108i8xF1b499g9GX1/lIPRU/FzvgcinU113JIuRXabee1vm2S8 /lCBy34DsSXcr4Th7bBRplF+p6D7fhspgECKVIwJkdqBHnke0Xd0SbZ4AxZwhz7pcS/F Ksn6p3v358/x743+hJRfbtJtL/XSjD6I0LZml7JbCkKoGyPdkGuoV8CXUrw+VK7IzR1x 1y1ET+x0H7m/Q8mbYmztCEsPQ+N35XMf3gZzBA4s37djYEGj/UU2CXaqGwv8Oh/Yz74Y YRRQ== X-Gm-Message-State: ALoCoQk+YUSeoF65v+gkBsZph0wR7xl3qie+U3MDnH02Vr8uUJx1gKaVzCH0inz1A9IOVVy2sIg1 X-Received: by 10.70.48.166 with SMTP id m6mr68073572pdn.22.1418793229041; Tue, 16 Dec 2014 21:13:49 -0800 (PST) Received: from urahara.brocade.com (static-50-53-82-155.bvtn.or.frontiernet.net. [50.53.82.155]) by mx.google.com with ESMTPSA id gd1sm2518208pbd.67.2014.12.16.21.13.46 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 16 Dec 2014 21:13:48 -0800 (PST) From: Stephen Hemminger To: dev@dpdk.org Date: Tue, 16 Dec 2014 21:13:15 -0800 Message-Id: <1418793196-17953-7-git-send-email-stephen@networkplumber.org> X-Mailer: git-send-email 2.1.3 In-Reply-To: <1418793196-17953-1-git-send-email-stephen@networkplumber.org> References: <1418793196-17953-1-git-send-email-stephen@networkplumber.org> Cc: Bill Hong , Stephen Hemminger Subject: [dpdk-dev] [PATCH 6/7] vmxnet3: support RSS and refactor offload 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: Wed, 17 Dec 2014 05:13:51 -0000 From: Stephen Hemminger Refactor the logic to compute receive offload flags to a simpler function. Andd add support for putting RSS flow hash into packet. Signed-off-by: Stephen Hemminger Signed-off-by: Bill Hong --- lib/librte_pmd_vmxnet3/vmxnet3_rxtx.c | 69 ++++++++++++++++++++--------------- 1 file changed, 40 insertions(+), 29 deletions(-) diff --git a/lib/librte_pmd_vmxnet3/vmxnet3_rxtx.c b/lib/librte_pmd_vmxnet3/vmxnet3_rxtx.c index bd47c6c..53ddb2c 100644 --- a/lib/librte_pmd_vmxnet3/vmxnet3_rxtx.c +++ b/lib/librte_pmd_vmxnet3/vmxnet3_rxtx.c @@ -488,6 +488,43 @@ vmxnet3_post_rx_bufs(vmxnet3_rx_queue_t *rxq, uint8_t ring_id) return i; } + +/* Receive side checksum and other offloads */ +static void +vmxnet3_rx_offload(const Vmxnet3_RxCompDesc *rcd, struct rte_mbuf *rxm) +{ + /* Check for hardware stripped VLAN tag */ + if (rcd->ts) { + rxm->ol_flags |= PKT_RX_VLAN_PKT; + rxm->vlan_tci = rte_le_to_cpu_16((uint16_t)rcd->tci); + } + + /* Check for RSS */ + if (rcd->rssType != VMXNET3_RCD_RSS_TYPE_NONE) { + rxm->ol_flags |= PKT_RX_RSS_HASH; + rxm->hash.rss = rcd->rssHash; + } + + /* Check packet type, checksum errors, etc. Only support IPv4 for now. */ + if (rcd->v4) { + struct ether_hdr *eth = rte_pktmbuf_mtod(rxm, struct ether_hdr *); + struct ipv4_hdr *ip = (struct ipv4_hdr *)(eth + 1); + + if (((ip->version_ihl & 0xf) << 2) > (int)sizeof(struct ipv4_hdr)) + rxm->ol_flags |= PKT_RX_IPV4_HDR_EXT; + else + rxm->ol_flags |= PKT_RX_IPV4_HDR; + + if (!rcd->cnc) { + if (!rcd->ipc) + rxm->ol_flags |= PKT_RX_IP_CKSUM_BAD; + + if ((rcd->tcp || rcd->udp) && !rcd->tuc) + rxm->ol_flags |= PKT_RX_L4_CKSUM_BAD; + } + } +} + /* * Process the Rx Completion Ring of given vmxnet3_rx_queue * for nb_pkts burst and return the number of packets received @@ -583,17 +620,6 @@ vmxnet3_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts) goto rcd_done; } - /* Check for hardware stripped VLAN tag */ - if (rcd->ts) { - PMD_RX_LOG(DEBUG, "Received packet with vlan ID: %d.", - rcd->tci); - rxm->ol_flags = PKT_RX_VLAN_PKT; - /* Copy vlan tag in packet buffer */ - rxm->vlan_tci = rte_le_to_cpu_16((uint16_t)rcd->tci); - } else { - rxm->ol_flags = 0; - rxm->vlan_tci = 0; - } /* Initialize newly received packet buffer */ rxm->port = rxq->port_id; @@ -602,25 +628,10 @@ vmxnet3_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts) rxm->pkt_len = (uint16_t)rcd->len; rxm->data_len = (uint16_t)rcd->len; rxm->data_off = RTE_PKTMBUF_HEADROOM; + rxm->ol_flags = 0; + rxm->vlan_tci = 0; - /* Check packet type, checksum errors, etc. Only support IPv4 for now. */ - if (rcd->v4) { - struct ether_hdr *eth = rte_pktmbuf_mtod(rxm, struct ether_hdr *); - struct ipv4_hdr *ip = (struct ipv4_hdr *)(eth + 1); - - if (((ip->version_ihl & 0xf) << 2) > (int)sizeof(struct ipv4_hdr)) - rxm->ol_flags |= PKT_RX_IPV4_HDR_EXT; - else - rxm->ol_flags |= PKT_RX_IPV4_HDR; - - if (!rcd->cnc) { - if (!rcd->ipc) - rxm->ol_flags |= PKT_RX_IP_CKSUM_BAD; - - if ((rcd->tcp || rcd->udp) && !rcd->tuc) - rxm->ol_flags |= PKT_RX_L4_CKSUM_BAD; - } - } + vmxnet3_rx_offload(rcd, rxm); rx_pkts[nb_rx++] = rxm; rcd_done: -- 2.1.3