This patch introduce new TX offload flags for device that supports
IP or UDP tunneled packet L3/L4 checksum and TSO offload.
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] / <some
headers> / [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
Please note that tunnel headers that contain payload length, sequence id
or checksum will not be updated.
Signed-off-by: Xueming Li <xuemi...@mellanox.com>
---
lib/librte_ether/rte_ethdev.h | 4 ++++
lib/librte_mbuf/rte_mbuf.c | 6 ++++++
lib/librte_mbuf/rte_mbuf.h | 16 ++++++++++++++++
3 files changed, 26 insertions(+)
diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index 4f417f573..51db97a6a 100644
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h
@@ -980,6 +980,10 @@ struct rte_eth_conf {
* the same mempool and has refcnt = 1.
*/
#define DEV_TX_OFFLOAD_SECURITY 0x00020000
+/**< Device supports UDP tunneled packet TSO */
+#define DEV_TX_OFFLOAD_UDP_TNL_TSO 0x00040000
+/**< Device supports IP based tunnel packet TSO */
+#define DEV_TX_OFFLOAD_IP_TNL_TSO 0x00080000
/*
* If new Tx offload capabilities are defined, they also must be
diff --git a/lib/librte_mbuf/rte_mbuf.c b/lib/librte_mbuf/rte_mbuf.c
index 3f4c83305..64e960d4c 100644
--- a/lib/librte_mbuf/rte_mbuf.c
+++ b/lib/librte_mbuf/rte_mbuf.c
@@ -390,6 +390,8 @@ const char *rte_get_tx_ol_flag_name(uint64_t mask)
case PKT_TX_TUNNEL_IPIP: return "PKT_TX_TUNNEL_IPIP";
case PKT_TX_TUNNEL_GENEVE: return "PKT_TX_TUNNEL_GENEVE";
case PKT_TX_TUNNEL_MPLSINUDP: return "PKT_TX_TUNNEL_MPLSINUDP";
+ case PKT_TX_TUNNEL_IP: return "PKT_TX_TUNNEL_IP";
+ case PKT_TX_TUNNEL_UDP: return "PKT_TX_TUNNEL_UDP";
case PKT_TX_MACSEC: return "PKT_TX_MACSEC";
case PKT_TX_SEC_OFFLOAD: return "PKT_TX_SEC_OFFLOAD";
default: return NULL;
@@ -424,6 +426,10 @@ rte_get_tx_ol_flag_list(uint64_t mask, char *buf, size_t
buflen)
"PKT_TX_TUNNEL_NONE" },
{ PKT_TX_TUNNEL_MPLSINUDP, PKT_TX_TUNNEL_MASK,
"PKT_TX_TUNNEL_NONE" },
+ { PKT_TX_TUNNEL_IP, PKT_TX_TUNNEL_MASK,
+ "PKT_TX_TUNNEL_NONE" },
+ { PKT_TX_TUNNEL_UDP, PKT_TX_TUNNEL_MASK,
+ "PKT_TX_TUNNEL_NONE" },
{ PKT_TX_MACSEC, PKT_TX_MACSEC, NULL },
{ PKT_TX_SEC_OFFLOAD, PKT_TX_SEC_OFFLOAD, NULL },
};
diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h
index 06eceba37..639e18f7c 100644
--- a/lib/librte_mbuf/rte_mbuf.h
+++ b/lib/librte_mbuf/rte_mbuf.h
@@ -210,6 +210,22 @@ extern "C" {
#define PKT_TX_TUNNEL_GENEVE (0x4ULL << 45)
/**< TX packet with MPLS-in-UDP RFC 7510 header. */
#define PKT_TX_TUNNEL_MPLSINUDP (0x5ULL << 45)
+/**
+ * Generic IP encapsulated tunnel type, used for TSO offload instead
+ * of defining new tunnel types. This feature relies on offloading
+ * DEV_TX_OFFLOAD_IP_TNL_TSO present.
+ * Tunnel header that contains payload length, sequence id or checksum
+ * is not expected to be updated.
+ */
+#define PKT_TX_TUNNEL_IP (0xDULL << 45)
+/**
+ * Generic UDP encapsulated tunnel type, used for TSO offload instead
+ * of defining new tunnel types. This feature relies on offloading
+ * DEV_TX_OFFLOAD_UDP_TNL_TSO present.
+ * Tunnel header that contains payload length, sequence id or checksum
+ * is not expected to be updated.
+ */
+#define PKT_TX_TUNNEL_UDP (0xEULL << 45)
/* add new TX TUNNEL type here */
#define PKT_TX_TUNNEL_MASK (0xFULL << 45)
--
2.13.3
