[dpdk-dev] [RFC v1] mbuf: support eCPRI hardware packet type

[Liulingyu <lingyu.liu@intel.com>]

Add L2_ETHER_ECPRI and L4_UDP_TUNNEL_ECPRI in RTE_PTYPE.

Signed-off-by: Liulingyu <lingyu.liu@intel.com>
---
 app/test-pmd/util.c              | 25 ++++++++++++++++---------
 lib/librte_mbuf/rte_mbuf_ptype.c |  2 ++
 lib/librte_mbuf/rte_mbuf_ptype.h | 22 ++++++++++++++++++++++
 3 files changed, 40 insertions(+), 9 deletions(-)

diff --git a/app/test-pmd/util.c b/app/test-pmd/util.c
index a9e431a8b2..494ebbf909 100644
--- a/app/test-pmd/util.c
+++ b/app/test-pmd/util.c
@@ -258,16 +258,23 @@ dump_pkt_burst(uint16_t port_id, uint16_t queue, struct rte_mbuf *pkts[],
 				udp_hdr = rte_pktmbuf_mtod_offset(mb,
 				struct rte_udp_hdr *,
 				l2_len + l3_len);
-				l4_len = sizeof(struct rte_udp_hdr);
-				vxlan_hdr = rte_pktmbuf_mtod_offset(mb,
-				struct rte_vxlan_hdr *,
-				l2_len + l3_len + l4_len);
 				udp_port = RTE_BE_TO_CPU_16(udp_hdr->dst_port);
-				vx_vni = rte_be_to_cpu_32(vxlan_hdr->vx_vni);
-				MKDUMPSTR(print_buf, buf_size, cur_len,
-					  " - VXLAN packet: packet type =%d, "
-					  "Destination UDP port =%d, VNI = %d",
-					  packet_type, udp_port, vx_vni >> 8);
+				l4_len = sizeof(struct rte_udp_hdr);
+				if (RTE_ETH_IS_ECPRI_HDR(packet_type)) {
+					MKDUMPSTR(print_buf, buf_size, cur_len,
+						  " - eCPRI packet: packet type =%d, "
+						  "Destination UDP port =%d",
+						  packet_type, udp_port);
+				} else {
+					vxlan_hdr = rte_pktmbuf_mtod_offset(mb,
+					struct rte_vxlan_hdr *,
+					l2_len + l3_len + l4_len);
+					vx_vni = rte_be_to_cpu_32(vxlan_hdr->vx_vni);
+					MKDUMPSTR(print_buf, buf_size, cur_len,
+						  " - VXLAN packet: packet type =%d, "
+						  "Destination UDP port =%d, VNI = %d",
+						  packet_type, udp_port, vx_vni >> 8);
+				}
 			}
 		}
 		MKDUMPSTR(print_buf, buf_size, cur_len,
diff --git a/lib/librte_mbuf/rte_mbuf_ptype.c b/lib/librte_mbuf/rte_mbuf_ptype.c
index d6f906b06c..2bf97c89c6 100644
--- a/lib/librte_mbuf/rte_mbuf_ptype.c
+++ b/lib/librte_mbuf/rte_mbuf_ptype.c
@@ -21,6 +21,7 @@ const char *rte_get_ptype_l2_name(uint32_t ptype)
 	case RTE_PTYPE_L2_ETHER_PPPOE: return "L2_ETHER_PPPOE";
 	case RTE_PTYPE_L2_ETHER_FCOE: return "L2_ETHER_FCOE";
 	case RTE_PTYPE_L2_ETHER_MPLS: return "L2_ETHER_MPLS";
+	case RTE_PTYPE_L2_ETHER_ECPRI: return "L2_ETHER_ECPRI";
 	default: return "L2_UNKNOWN";
 	}
 }
@@ -71,6 +72,7 @@ const char *rte_get_ptype_tunnel_name(uint32_t ptype)
 	case RTE_PTYPE_TUNNEL_VXLAN_GPE: return "TUNNEL_VXLAN_GPE";
 	case RTE_PTYPE_TUNNEL_MPLS_IN_UDP: return "TUNNEL_MPLS_IN_UDP";
 	case RTE_PTYPE_TUNNEL_MPLS_IN_GRE: return "TUNNEL_MPLS_IN_GRE";
+	case RTE_PTYPE_TUNNEL_ECPRI: return "TUNNEL_ECPRI";
 	default: return "TUNNEL_UNKNOWN";
 	}
 }
diff --git a/lib/librte_mbuf/rte_mbuf_ptype.h b/lib/librte_mbuf/rte_mbuf_ptype.h
index 17a2dd3576..3a647feffe 100644
--- a/lib/librte_mbuf/rte_mbuf_ptype.h
+++ b/lib/librte_mbuf/rte_mbuf_ptype.h
@@ -144,6 +144,13 @@ extern "C" {
  * <'ether type'=[0x8847|0x8848]>
  */
 #define RTE_PTYPE_L2_ETHER_MPLS             0x0000000a
+/**
+ * eCPRI (extend Common Public Radio Interface) packet type.
+ *
+ * Packet format:
+ * <'ether type'=[0xAEFE]>
+ */
+#define RTE_PTYPE_L2_ETHER_ECPRI            0x0000000b
 /**
  * Mask of layer 2 packet types.
  * It is used for outer packet for tunneling cases.
@@ -491,6 +498,19 @@ extern "C" {
  * | 'destination port'=6635>
  */
 #define RTE_PTYPE_TUNNEL_MPLS_IN_UDP      0x0000d000
+/**
+ * ECPRI packet type.
+ *
+ * Packet format:
+ * <'ether type'=0xAEFE
+ * | 'version'=4, 'protocol'=17,
+ * | 'destination port'=5123>
+ * or,
+ * <'ether type'=0xAEFE>
+ * | 'version'=6, 'protocol'=17,
+ * | 'destination port'=5123>
+ */
+#define RTE_PTYPE_TUNNEL_ECPRI              0x0000e000
 /**
  * Mask of tunneling packet types.
  */
@@ -688,6 +708,8 @@ extern "C" {
 		RTE_PTYPE_INNER_L3_MASK |				\
 		RTE_PTYPE_INNER_L4_MASK))
 
+/* Check if it is a ECPRI packet */
+#define  RTE_ETH_IS_ECPRI_HDR(ptype) ((ptype) & RTE_PTYPE_TUNNEL_ECPRI)
 /**
  * Get the name of the l2 packet type
  *
-- 
2.25.1