From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jianfeng Tan Subject: [PATCH v4 1/3] mbuf: add Tx side tunneling type Date: Mon, 1 Aug 2016 03:56:53 +0000 Message-ID: <1470023815-23108-2-git-send-email-jianfeng.tan@intel.com> References: <1467752375-25984-1-git-send-email-zhe.tao@intel.com> <1470023815-23108-1-git-send-email-jianfeng.tan@intel.com> Cc: thomas.monjalon@6wind.com, pablo.de.lara.guarch@intel.com, konstantin.ananyev@intel.com, jingjing.wu@intel.com, helin.zhang@intel.com, Jianfeng Tan , Zhe Tao To: dev@dpdk.org Return-path: Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by dpdk.org (Postfix) with ESMTP id 59A955587 for ; Mon, 1 Aug 2016 05:57:06 +0200 (CEST) In-Reply-To: <1470023815-23108-1-git-send-email-jianfeng.tan@intel.com> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" To support tunneling packet offload capabilities on Tx side, PMDs (e.g., i40e) need to know what kind of tunneling type of this packet. Instead of analyzing the packet itself, we depend on applications to correctly set the tunneling type. These flags are defined inside rte_mbuf.ol_flags. Signed-off-by: Zhe Tao Signed-off-by: Jianfeng Tan --- lib/librte_mbuf/rte_mbuf.c | 4 ++++ lib/librte_mbuf/rte_mbuf.h | 17 ++++++++++++++++- 2 files changed, 20 insertions(+), 1 deletion(-) diff --git a/lib/librte_mbuf/rte_mbuf.c b/lib/librte_mbuf/rte_mbuf.c index 4846b89..4505abb 100644 --- a/lib/librte_mbuf/rte_mbuf.c +++ b/lib/librte_mbuf/rte_mbuf.c @@ -302,6 +302,10 @@ const char *rte_get_tx_ol_flag_name(uint64_t mask) case PKT_TX_OUTER_IP_CKSUM: return "PKT_TX_OUTER_IP_CKSUM"; case PKT_TX_OUTER_IPV4: return "PKT_TX_OUTER_IPV4"; case PKT_TX_OUTER_IPV6: return "PKT_TX_OUTER_IPV6"; + case PKT_TX_TUNNEL_VXLAN: return "PKT_TX_TUNNEL_VXLAN"; + case PKT_TX_TUNNEL_GRE: return "PKT_TX_TUNNEL_GRE"; + case PKT_TX_TUNNEL_IPIP: return "PKT_TX_TUNNEL_IPIP"; + case PKT_TX_TUNNEL_GENEVE: return "PKT_TX_TUNNEL_GENEVE"; default: return NULL; } } diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h index 101485f..0eec112 100644 --- a/lib/librte_mbuf/rte_mbuf.h +++ b/lib/librte_mbuf/rte_mbuf.h @@ -129,6 +129,18 @@ extern "C" { /* add new TX flags here */ /** + * Bits 45:48 used for the tunnel type. + * When doing Tx offload like TSO or checksum, the HW needs to configure the + * tunnel type into the HW descriptors. + */ +#define PKT_TX_TUNNEL_VXLAN (0x1ULL << 45) +#define PKT_TX_TUNNEL_GRE (0x2ULL << 45) +#define PKT_TX_TUNNEL_IPIP (0x3ULL << 45) +#define PKT_TX_TUNNEL_GENEVE (0x4ULL << 45) +/* add new TX TUNNEL type here */ +#define PKT_TX_TUNNEL_MASK (0xFULL << 45) + +/** * Second VLAN insertion (QinQ) flag. */ #define PKT_TX_QINQ_PKT (1ULL << 49) /**< TX packet with double VLAN inserted. */ @@ -863,7 +875,10 @@ struct rte_mbuf { union { uint64_t tx_offload; /**< combined for easy fetch */ struct { - uint64_t l2_len:7; /**< L2 (MAC) Header Length. */ + uint64_t l2_len:7; + /**< L2 (MAC) Header Length for non-tunneling pkt. + * Outer_L4_len + ... + Inner_L2_len for tunneling pkt. + */ uint64_t l3_len:9; /**< L3 (IP) Header Length. */ uint64_t l4_len:8; /**< L4 (TCP/UDP) Header Length. */ uint64_t tso_segsz:16; /**< TCP TSO segment size */ -- 2.7.4