From mboxrd@z Thu Jan 1 00:00:00 1970 From: Xueming Li Subject: [PATCH v2 1/5] ethdev: introduce Tx generic tunnel offloads Date: Mon, 29 Jan 2018 23:08:55 +0800 Message-ID: <20180129150859.71573-1-xuemingl@mellanox.com> References: <20180109141110.146250-2-xuemingl@mellanox.com> Cc: Xueming Li , dev@dpdk.org, Jingjing Wu , Shahaf Shuler , Yongseok Koh , Thomas Monjalon , Ferruh Yigit To: Olivier MATZ Return-path: Received: from mellanox.co.il (mail-il-dmz.mellanox.com [193.47.165.129]) by dpdk.org (Postfix) with ESMTP id AE7CF1B359 for ; Mon, 29 Jan 2018 16:11:17 +0100 (CET) In-Reply-To: <20180109141110.146250-2-xuemingl@mellanox.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" This patch introduce new TX offloads flag for devices that support tunnel agnostic checksum and TSO offloads. The support from the device is for inner and outer checksums on IPV4/TCP/UDP and TSO for *any packet with the following format*: < some headers > / [optional IPv4/IPv6] / [optional TCP/UDP] / / [optional inner IPv4/IPv6] / [optional TCP/UDP] For example the following packets can use this feature: 1. eth / ipv4 / udp / VXLAN / ip / tcp 2. eth / ipv4 / GRE / MPLS / ipv4 / udp Signed-off-by: Xueming Li --- lib/librte_ether/rte_ethdev.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h index 1a5b4cdc5..d8d08ccb2 100644 --- a/lib/librte_ether/rte_ethdev.h +++ b/lib/librte_ether/rte_ethdev.h @@ -979,6 +979,16 @@ struct rte_eth_conf { * the same mempool and has refcnt = 1. */ #define DEV_TX_OFFLOAD_SECURITY 0x00020000 +/**< Device supports generic tunnel checksum and TSO offloading. + * Checksum and TSO are done based on following mbuf fields: + * - Length of each header + * - Type of outer/inner L3 type, IPv4 or IPv6 + * - Type of outer/inner L4 type, TCP or UDP. + * - PKT_TX_TUNNEL_VXLAN implies outer UDP type. + * - PKT_TX_TCP_SEG implies inner TCP type. + * Tunnel type is optional except PKT_TX_TUNNEL_VXLAN to hint outer UDP. + */ +#define DEV_TX_OFFLOAD_GENERIC_TNL_CKSUM_TSO 0x00040000 /* * If new Tx offload capabilities are defined, they also must be -- 2.13.3