From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jijiang Liu Subject: [PATCH v4 1/3] mbuf:redefine three TX ol_flags Date: Tue, 2 Dec 2014 14:52:50 +0800 Message-ID: <1417503172-18642-2-git-send-email-jijiang.liu@intel.com> References: <1417503172-18642-1-git-send-email-jijiang.liu@intel.com> To: dev-VfR2kkLFssw@public.gmane.org Return-path: In-Reply-To: <1417503172-18642-1-git-send-email-jijiang.liu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces-VfR2kkLFssw@public.gmane.org Sender: "dev" The reason of redefining the PKT_TX_IPV4 and the PKT_TX_IPV6 is listed below, It will avoid to send a packet with a bad info: - we receive a Ether/IP6/IP4/L4/data packet - the driver sets PKT_RX_IPV6_HDR - the stack decapsulates IP6 - the stack sends the packet, it has the PKT_TX_IPV6 flag but it's an IPv4 packet. Signed-off-by: Jijiang Liu --- lib/librte_mbuf/rte_mbuf.h | 10 +++++----- 1 files changed, 5 insertions(+), 5 deletions(-) diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h index 2e5fce5..cbadf8e 100644 --- a/lib/librte_mbuf/rte_mbuf.h +++ b/lib/librte_mbuf/rte_mbuf.h @@ -141,13 +141,13 @@ extern "C" { #define PKT_TX_IP_CKSUM (1ULL << 54) /**< IP cksum of TX pkt. computed by NIC. */ #define PKT_TX_IPV4_CSUM PKT_TX_IP_CKSUM /**< Alias of PKT_TX_IP_CKSUM. */ -/** Tell the NIC it's an IPv4 packet. Required for L4 checksum offload or TSO. */ -#define PKT_TX_IPV4 PKT_RX_IPV4_HDR +/** Packet is IPv4 without requiring IP checksum offload. */ +#define PKT_TX_IPV4 (1ULL << 55) -/** Tell the NIC it's an IPv6 packet. Required for L4 checksum offload or TSO. */ -#define PKT_TX_IPV6 PKT_RX_IPV6_HDR +/** Tell the NIC it's an IPv6 packet.*/ +#define PKT_TX_IPV6 (1ULL << 56) -#define PKT_TX_VLAN_PKT (1ULL << 55) /**< TX packet is a 802.1q VLAN packet. */ +#define PKT_TX_VLAN_PKT (1ULL << 57) /**< TX packet is a 802.1q VLAN packet. */ /* Use final bit of flags to indicate a control mbuf */ #define CTRL_MBUF_FLAG (1ULL << 63) /**< Mbuf contains control data */ -- 1.7.7.6