[dpdk-dev] [PATCH v1 03/21] ethdev: introduce new tunnel VXLAN-GPE
Xueming Li
xuemingl at mellanox.com
Fri Mar 9 12:29:03 CET 2018
VXLAN-GPE enables VXLAN for all protocols. Protocol link:
https://datatracker.ietf.org/doc/draft-ietf-nvo3-vxlan-gpe/
Signed-off-by: Xueming Li <xuemingl at mellanox.com>
---
lib/librte_ether/rte_eth_ctrl.h | 3 ++-
lib/librte_ether/rte_flow.c | 1 +
lib/librte_ether/rte_flow.h | 27 +++++++++++++++++++++++++++
lib/librte_mbuf/rte_mbuf.c | 3 +++
lib/librte_mbuf/rte_mbuf.h | 1 +
lib/librte_mbuf/rte_mbuf_ptype.c | 1 +
lib/librte_mbuf/rte_mbuf_ptype.h | 13 +++++++++++++
lib/librte_net/rte_ether.h | 25 +++++++++++++++++++++++++
8 files changed, 73 insertions(+), 1 deletion(-)
diff --git a/lib/librte_ether/rte_eth_ctrl.h b/lib/librte_ether/rte_eth_ctrl.h
index 668f59a..5ea8ae2 100644
--- a/lib/librte_ether/rte_eth_ctrl.h
+++ b/lib/librte_ether/rte_eth_ctrl.h
@@ -54,7 +54,8 @@
#define RTE_ETH_FLOW_VXLAN 19 /**< VXLAN protocol based flow */
#define RTE_ETH_FLOW_GENEVE 20 /**< GENEVE protocol based flow */
#define RTE_ETH_FLOW_NVGRE 21 /**< NVGRE protocol based flow */
-#define RTE_ETH_FLOW_MAX 22
+#define RTE_ETH_FLOW_VXLAN_GPE 22 /**< VXLAN-GPE protocol based flow */
+#define RTE_ETH_FLOW_MAX 23
/**
* Feature filter types
diff --git a/lib/librte_ether/rte_flow.c b/lib/librte_ether/rte_flow.c
index 38f2d27..a32242a 100644
--- a/lib/librte_ether/rte_flow.c
+++ b/lib/librte_ether/rte_flow.c
@@ -49,6 +49,7 @@ struct rte_flow_desc_data {
MK_FLOW_ITEM(TCP, sizeof(struct rte_flow_item_tcp)),
MK_FLOW_ITEM(SCTP, sizeof(struct rte_flow_item_sctp)),
MK_FLOW_ITEM(VXLAN, sizeof(struct rte_flow_item_vxlan)),
+ MK_FLOW_ITEM(VXLAN_GPE, sizeof(struct rte_flow_item_vxlan_gpe)),
MK_FLOW_ITEM(MPLS, sizeof(struct rte_flow_item_mpls)),
MK_FLOW_ITEM(GRE, sizeof(struct rte_flow_item_gre)),
MK_FLOW_ITEM(E_TAG, sizeof(struct rte_flow_item_e_tag)),
diff --git a/lib/librte_ether/rte_flow.h b/lib/librte_ether/rte_flow.h
index 13e4202..8fa0397 100644
--- a/lib/librte_ether/rte_flow.h
+++ b/lib/librte_ether/rte_flow.h
@@ -244,6 +244,13 @@ enum rte_flow_item_type {
RTE_FLOW_ITEM_TYPE_VXLAN,
/**
+ * Matches a VXLAN-GPE header.
+ *
+ * See struct rte_flow_item_vxlan_gpe.
+ */
+ RTE_FLOW_ITEM_TYPE_VXLAN_GPE,
+
+ /**
* Matches a E_TAG header.
*
* See struct rte_flow_item_e_tag.
@@ -630,6 +637,26 @@ struct rte_flow_item_vxlan {
#endif
/**
+ * RTE_FLOW_ITEM_TYPE_VXLAN_GPE.
+ *
+ * Matches a VXLAN-GPE header.
+ */
+struct rte_flow_item_vxlan_gpe {
+ uint8_t flags; /**< Normally 0x0c (I and P flag). */
+ uint8_t rsvd0[2]; /**< Reserved, normally 0x0000. */
+ uint8_t protocol; /**< Protocol type. */
+ uint8_t vni[3]; /**< VXLAN identifier. */
+ uint8_t rsvd1; /**< Reserved, normally 0x00. */
+};
+
+/** Default mask for RTE_FLOW_ITEM_TYPE_VXLAN_GPE. */
+#ifndef __cplusplus
+static const struct rte_flow_item_vxlan_gpe rte_flow_item_vxlan_gpe_mask = {
+ .vni = "\xff\xff\xff",
+};
+#endif
+
+/**
* RTE_FLOW_ITEM_TYPE_E_TAG.
*
* Matches a E-tag header.
diff --git a/lib/librte_mbuf/rte_mbuf.c b/lib/librte_mbuf/rte_mbuf.c
index 091d388..dc90379 100644
--- a/lib/librte_mbuf/rte_mbuf.c
+++ b/lib/librte_mbuf/rte_mbuf.c
@@ -405,6 +405,7 @@ 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_VXLAN_GPE: return "PKT_TX_TUNNEL_VXLAN_GPE";
case PKT_TX_MACSEC: return "PKT_TX_MACSEC";
case PKT_TX_SEC_OFFLOAD: return "PKT_TX_SEC_OFFLOAD";
default: return NULL;
@@ -439,6 +440,8 @@ const char *rte_get_tx_ol_flag_name(uint64_t mask)
"PKT_TX_TUNNEL_NONE" },
{ PKT_TX_TUNNEL_MPLSINUDP, PKT_TX_TUNNEL_MASK,
"PKT_TX_TUNNEL_NONE" },
+ { PKT_TX_TUNNEL_VXLAN_GPE, 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 6274025..1839cf2 100644
--- a/lib/librte_mbuf/rte_mbuf.h
+++ b/lib/librte_mbuf/rte_mbuf.h
@@ -210,6 +210,7 @@
#define PKT_TX_TUNNEL_GENEVE (0x4ULL << 45)
/**< TX packet with MPLS-in-UDP RFC 7510 header. */
#define PKT_TX_TUNNEL_MPLSINUDP (0x5ULL << 45)
+#define PKT_TX_TUNNEL_VXLAN_GPE (0x6ULL << 45)
/* add new TX TUNNEL type here */
#define PKT_TX_TUNNEL_MASK (0xFULL << 45)
diff --git a/lib/librte_mbuf/rte_mbuf_ptype.c b/lib/librte_mbuf/rte_mbuf_ptype.c
index 1feefac..49106c7 100644
--- a/lib/librte_mbuf/rte_mbuf_ptype.c
+++ b/lib/librte_mbuf/rte_mbuf_ptype.c
@@ -65,6 +65,7 @@ const char *rte_get_ptype_tunnel_name(uint32_t ptype)
case RTE_PTYPE_TUNNEL_GTPU: return "TUNNEL_GTPU";
case RTE_PTYPE_TUNNEL_ESP: return "TUNNEL_ESP";
case RTE_PTYPE_TUNNEL_L2TP: return "TUNNEL_L2TP";
+ case RTE_PTYPE_TUNNEL_VXLAN_GPE: return "TUNNEL_VXLAN_GPE";
default: return "TUNNEL_UNKNOWN";
}
}
diff --git a/lib/librte_mbuf/rte_mbuf_ptype.h b/lib/librte_mbuf/rte_mbuf_ptype.h
index b9a3381..7caf833 100644
--- a/lib/librte_mbuf/rte_mbuf_ptype.h
+++ b/lib/librte_mbuf/rte_mbuf_ptype.h
@@ -423,6 +423,19 @@
*/
#define RTE_PTYPE_TUNNEL_L2TP 0x0000a000
/**
+ * VXLAN-GPE (VXLAN Generic Protocol Extension) tunneling packet type.
+ *
+ * Packet format:
+ * <'ether type'=0x0800
+ * | 'version'=4, 'protocol'=17
+ * | 'destination port'=4790>
+ * or,
+ * <'ether type'=0x86DD
+ * | 'version'=6, 'next header'=17
+ * | 'destination port'=4790>
+ */
+#define RTE_PTYPE_TUNNEL_VXLAN_GPE 0x0000b000
+/**
* Mask of tunneling packet types.
*/
#define RTE_PTYPE_TUNNEL_MASK 0x0000f000
diff --git a/lib/librte_net/rte_ether.h b/lib/librte_net/rte_ether.h
index 45daa91..fe02ad8 100644
--- a/lib/librte_net/rte_ether.h
+++ b/lib/librte_net/rte_ether.h
@@ -310,6 +310,31 @@ struct vxlan_hdr {
/**< VXLAN tunnel header length. */
/**
+ * VXLAN-GPE protocol header.
+ * Contains the 8-bit flag, 8-bit next-protocol, 24-bit VXLAN Network
+ * Identifier and Reserved fields (16 bits and 8 bits).
+ */
+struct vxlan_gpe_hdr {
+ uint8_t vx_flags; /**< flag (8). */
+ uint8_t reserved[2]; /**< Reserved (16). */
+ uint8_t proto; /**< next-protocol (8). */
+ uint32_t vx_vni; /**< VNI (24) + Reserved (8). */
+} __attribute__((__packed__));
+
+/* VXLAN-GPE next protocol types */
+#define VXLAN_GPE_TYPE_IPv4 1 /**< IPv4 Protocol. */
+#define VXLAN_GPE_TYPE_IPv6 2 /**< IPv6 Protocol. */
+#define VXLAN_GPE_TYPE_ETH 3 /**< Ethernet Protocol. */
+#define VXLAN_GPE_TYPE_NSH 4 /**< NSH Protocol. */
+#define VXLAN_GPE_TYPE_MPLS 5 /**< MPLS Protocol. */
+#define VXLAN_GPE_TYPE_GBP 6 /**< GBP Protocol. */
+#define VXLAN_GPE_TYPE_VBNG 7 /**< vBNG Protocol. */
+
+#define ETHER_VXLAN_GPE_HLEN (sizeof(struct udp_hdr) + \
+ sizeof(struct vxlan_gpe_hdr))
+/**< VXLAN-GPE tunnel header length. */
+
+/**
* Extract VLAN tag information into mbuf
*
* Software version of VLAN stripping
--
1.8.3.1
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