From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by dpdk.space (Postfix) with ESMTP id BA31EA0471 for ; Tue, 18 Jun 2019 09:07:14 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 0E49B1C0B3; Tue, 18 Jun 2019 09:07:08 +0200 (CEST) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by dpdk.org (Postfix) with ESMTP id 4C3D31BF4B for ; Tue, 18 Jun 2019 09:07:04 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 18 Jun 2019 00:07:03 -0700 X-ExtLoop1: 1 Received: from unknown (HELO dpdk9.sh.intel.com) ([10.67.118.52]) by fmsmga008.fm.intel.com with ESMTP; 18 Jun 2019 00:07:02 -0700 From: Beilei Xing To: qi.z.zhang@intel.com, john.mcnamara@intel.com Cc: dev@dpdk.org Date: Tue, 18 Jun 2019 15:04:48 +0800 Message-Id: <1560841489-77908-2-git-send-email-beilei.xing@intel.com> X-Mailer: git-send-email 2.5.5 In-Reply-To: <1560841489-77908-1-git-send-email-beilei.xing@intel.com> References: <1560827647-59239-1-git-send-email-beilei.xing@intel.com> <1560841489-77908-1-git-send-email-beilei.xing@intel.com> Subject: [dpdk-dev] [PATCH v3 1/2] net/ice: support Tx checksum offload for tunneling packets 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" Enable Tx checksum offload for tunneling packets by configuring tunneling parameters in Tx descriptors, including outer L3/L4 checksum offload. Signed-off-by: Beilei Xing --- drivers/net/ice/ice_ethdev.c | 3 +- drivers/net/ice/ice_rxtx.c | 78 +++++++++++++++++++++++++++++++++++++++++--- 2 files changed, 76 insertions(+), 5 deletions(-) diff --git a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c index 19fbbc3..b6a473f 100644 --- a/drivers/net/ice/ice_ethdev.c +++ b/drivers/net/ice/ice_ethdev.c @@ -2051,7 +2051,8 @@ ice_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info) DEV_TX_OFFLOAD_UDP_CKSUM | DEV_TX_OFFLOAD_TCP_CKSUM | DEV_TX_OFFLOAD_SCTP_CKSUM | - DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM; + DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM | + DEV_TX_OFFLOAD_OUTER_UDP_CKSUM; dev_info->flow_type_rss_offloads |= ICE_RSS_OFFLOAD_ALL; } diff --git a/drivers/net/ice/ice_rxtx.c b/drivers/net/ice/ice_rxtx.c index 620a5ea..7ff3ff8 100644 --- a/drivers/net/ice/ice_rxtx.c +++ b/drivers/net/ice/ice_rxtx.c @@ -1742,14 +1742,71 @@ ice_recv_pkts(void *rx_queue, } static inline void +ice_parse_tunneling_params(uint64_t ol_flags, + union ice_tx_offload tx_offload, + uint32_t *cd_tunneling) +{ + /* EIPT: External (outer) IP header type */ + if (ol_flags & PKT_TX_OUTER_IP_CKSUM) + *cd_tunneling |= ICE_TX_CTX_EIPT_IPV4; + else if (ol_flags & PKT_TX_OUTER_IPV4) + *cd_tunneling |= ICE_TX_CTX_EIPT_IPV4_NO_CSUM; + else if (ol_flags & PKT_TX_OUTER_IPV6) + *cd_tunneling |= ICE_TX_CTX_EIPT_IPV6; + + /* EIPLEN: External (outer) IP header length, in DWords */ + *cd_tunneling |= (tx_offload.outer_l3_len >> 2) << + ICE_TXD_CTX_QW0_EIPLEN_S; + + /* L4TUNT: L4 Tunneling Type */ + switch (ol_flags & PKT_TX_TUNNEL_MASK) { + case PKT_TX_TUNNEL_IPIP: + /* for non UDP / GRE tunneling, set to 00b */ + break; + case PKT_TX_TUNNEL_VXLAN: + case PKT_TX_TUNNEL_GENEVE: + *cd_tunneling |= ICE_TXD_CTX_UDP_TUNNELING; + break; + case PKT_TX_TUNNEL_GRE: + *cd_tunneling |= ICE_TXD_CTX_GRE_TUNNELING; + break; + default: + PMD_TX_LOG(ERR, "Tunnel type not supported"); + return; + } + + /* L4TUNLEN: L4 Tunneling Length, in Words + * + * We depend on app to set rte_mbuf.l2_len correctly. + * For IP in GRE it should be set to the length of the GRE + * header; + * For MAC in GRE or MAC in UDP it should be set to the length + * of the GRE or UDP headers plus the inner MAC up to including + * its last Ethertype. + * If MPLS labels exists, it should include them as well. + */ + *cd_tunneling |= (tx_offload.l2_len >> 1) << + ICE_TXD_CTX_QW0_NATLEN_S; + + if ((ol_flags & PKT_TX_OUTER_UDP_CKSUM) && + (ol_flags & PKT_TX_OUTER_IP_CKSUM) && + (*cd_tunneling & ICE_TXD_CTX_UDP_TUNNELING)) + *cd_tunneling |= ICE_TXD_CTX_QW0_L4T_CS_M; +} + +static inline void ice_txd_enable_checksum(uint64_t ol_flags, uint32_t *td_cmd, uint32_t *td_offset, union ice_tx_offload tx_offload) { - /* L2 length must be set. */ - *td_offset |= (tx_offload.l2_len >> 1) << - ICE_TX_DESC_LEN_MACLEN_S; + /* Set MACLEN */ + if (ol_flags & PKT_TX_TUNNEL_MASK) + *td_offset |= (tx_offload.outer_l2_len >> 1) + << ICE_TX_DESC_LEN_MACLEN_S; + else + *td_offset |= (tx_offload.l2_len >> 1) + << ICE_TX_DESC_LEN_MACLEN_S; /* Enable L3 checksum offloads */ if (ol_flags & PKT_TX_IP_CKSUM) { @@ -1863,7 +1920,10 @@ ice_build_ctob(uint32_t td_cmd, static inline uint16_t ice_calc_context_desc(uint64_t flags) { - static uint64_t mask = PKT_TX_TCP_SEG | PKT_TX_QINQ; + static uint64_t mask = PKT_TX_TCP_SEG | + PKT_TX_QINQ | + PKT_TX_OUTER_IP_CKSUM | + PKT_TX_TUNNEL_MASK; return (flags & mask) ? 1 : 0; } @@ -1909,6 +1969,7 @@ ice_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts) struct ice_tx_entry *txe, *txn; struct rte_mbuf *tx_pkt; struct rte_mbuf *m_seg; + uint32_t cd_tunneling_params; uint16_t tx_id; uint16_t nb_tx; uint16_t nb_used; @@ -1979,6 +2040,12 @@ ice_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts) td_tag = tx_pkt->vlan_tci; } + /* Fill in tunneling parameters if necessary */ + cd_tunneling_params = 0; + if (ol_flags & PKT_TX_TUNNEL_MASK) + ice_parse_tunneling_params(ol_flags, tx_offload, + &cd_tunneling_params); + /* Enable checksum offloading */ if (ol_flags & ICE_TX_CKSUM_OFFLOAD_MASK) { ice_txd_enable_checksum(ol_flags, &td_cmd, @@ -2004,6 +2071,9 @@ ice_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts) cd_type_cmd_tso_mss |= ice_set_tso_ctx(tx_pkt, tx_offload); + ctx_txd->tunneling_params = + rte_cpu_to_le_32(cd_tunneling_params); + /* TX context descriptor based double VLAN insert */ if (ol_flags & PKT_TX_QINQ) { cd_l2tag2 = tx_pkt->vlan_tci_outer; -- 2.5.5