[dpdk-dev] [PATCH 1/2] app/testpmd: add a generic way for dumping packets

[Raslan Darawsheh]

verbosity for the received/sent packets is needed in all of the
forwarding engines so moving it to be in a separate function.

Signed-off-by: Raslan Darawsheh <rasland at mellanox.com>
---
 app/test-pmd/Makefile  |   1 +
 app/test-pmd/testpmd.h |   2 +
 app/test-pmd/util.c    | 143 +++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 146 insertions(+)
 create mode 100644 app/test-pmd/util.c

diff --git a/app/test-pmd/Makefile b/app/test-pmd/Makefile
index 2b4d604..e2c7845 100644
--- a/app/test-pmd/Makefile
+++ b/app/test-pmd/Makefile
@@ -35,6 +35,7 @@ SRCS-y += csumonly.c
 SRCS-y += icmpecho.c
 SRCS-$(CONFIG_RTE_LIBRTE_IEEE1588) += ieee1588fwd.c
 SRCS-$(CONFIG_RTE_LIBRTE_BPF) += bpf_cmd.c
+SRCS-y += util.c
 
 ifeq ($(CONFIG_RTE_LIBRTE_PMD_SOFTNIC), y)
 SRCS-y += softnicfwd.c
diff --git a/app/test-pmd/testpmd.h b/app/test-pmd/testpmd.h
index a1f6614..a0d9ce1 100644
--- a/app/test-pmd/testpmd.h
+++ b/app/test-pmd/testpmd.h
@@ -743,6 +743,8 @@ int check_nb_rxq(queueid_t rxq);
 queueid_t get_allowed_max_nb_txq(portid_t *pid);
 int check_nb_txq(queueid_t txq);
 
+void dump_pkt_burst(struct fwd_stream *fs, struct rte_mbuf *pkts_burst[],
+		    uint16_t nb_rx, int direction);
 /*
  * Work-around of a compilation error with ICC on invocations of the
  * rte_be_to_cpu_16() function.
diff --git a/app/test-pmd/util.c b/app/test-pmd/util.c
new file mode 100644
index 0000000..87cbbcd
--- /dev/null
+++ b/app/test-pmd/util.c
@@ -0,0 +1,143 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2018 Mellanox technology.
+ */
+
+#include <stdio.h>
+
+#include <rte_net.h>
+#include <rte_mbuf.h>
+#include <rte_ether.h>
+#include <rte_ethdev.h>
+#include <rte_flow.h>
+
+#include "testpmd.h"
+
+static inline void
+print_ether_addr(const char *what, struct ether_addr *eth_addr)
+{
+	char buf[ETHER_ADDR_FMT_SIZE];
+	ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr);
+	printf("%s%s", what, buf);
+}
+
+void
+dump_pkt_burst(struct fwd_stream *fs, struct rte_mbuf **pkts_burst,
+	       uint16_t nb_pkts, int direction)
+{
+	struct rte_mbuf  *mb;
+	struct ether_hdr *eth_hdr;
+	uint16_t eth_type;
+	uint64_t ol_flags;
+	uint16_t i, packet_type;
+	uint16_t is_encapsulation;
+	char buf[256];
+	struct rte_net_hdr_lens hdr_lens;
+	uint32_t sw_packet_type;
+
+	printf("port %u/queue %u: %s %u packets\n",
+	       direction ? fs->rx_port : fs->tx_port,
+	       direction ? (unsigned int) fs->rx_queue :
+	       (unsigned int) fs->tx_queue,
+	       direction ? "received" : "sent",
+	       (unsigned int) nb_pkts);
+	for (i = 0; i < nb_pkts; i++) {
+		mb = pkts_burst[i];
+		eth_hdr = rte_pktmbuf_mtod(mb, struct ether_hdr *);
+		eth_type = RTE_BE_TO_CPU_16(eth_hdr->ether_type);
+		ol_flags = mb->ol_flags;
+		packet_type = mb->packet_type;
+		is_encapsulation = RTE_ETH_IS_TUNNEL_PKT(packet_type);
+
+		print_ether_addr("  src=", &eth_hdr->s_addr);
+		print_ether_addr(" - dst=", &eth_hdr->d_addr);
+		printf(" - type=0x%04x - length=%u - nb_segs=%d",
+		       eth_type, (unsigned int) mb->pkt_len,
+		       (int)mb->nb_segs);
+		printf(" - RSS hash=0x%x", (unsigned int) mb->hash.rss);
+		printf(" - RSS queue=0x%x", (unsigned int) fs->rx_queue);
+		if (ol_flags & PKT_RX_FDIR) {
+			printf(" - FDIR matched ");
+			if (ol_flags & PKT_RX_FDIR_ID)
+				printf("ID=0x%x",
+				       mb->hash.fdir.hi);
+			else if (ol_flags & PKT_RX_FDIR_FLX)
+				printf("flex bytes=0x%08x %08x",
+				       mb->hash.fdir.hi, mb->hash.fdir.lo);
+			else
+				printf("hash=0x%x ID=0x%x ",
+				       mb->hash.fdir.hash, mb->hash.fdir.id);
+		}
+		if (ol_flags & PKT_RX_TIMESTAMP)
+			printf(" - timestamp %"PRIu64" ", mb->timestamp);
+		if (ol_flags & PKT_RX_VLAN_STRIPPED)
+			printf(" - VLAN tci=0x%x", mb->vlan_tci);
+		if (ol_flags & PKT_RX_QINQ_STRIPPED)
+			printf(" - QinQ VLAN tci=0x%x, VLAN tci outer=0x%x",
+			       mb->vlan_tci, mb->vlan_tci_outer);
+		if (mb->packet_type) {
+			rte_get_ptype_name(mb->packet_type, buf, sizeof(buf));
+			printf(" - hw ptype: %s", buf);
+		}
+		sw_packet_type = rte_net_get_ptype(mb, &hdr_lens,
+						   RTE_PTYPE_ALL_MASK);
+		rte_get_ptype_name(sw_packet_type, buf, sizeof(buf));
+		printf(" - sw ptype: %s", buf);
+		if (sw_packet_type & RTE_PTYPE_L2_MASK)
+			printf(" - l2_len=%d", hdr_lens.l2_len);
+		if (sw_packet_type & RTE_PTYPE_L3_MASK)
+
+			printf(" - l4_len=%d", hdr_lens.l4_len);
+		if (sw_packet_type & RTE_PTYPE_TUNNEL_MASK)
+			printf(" - tunnel_len=%d", hdr_lens.tunnel_len);
+		if (sw_packet_type & RTE_PTYPE_INNER_L2_MASK)
+			printf(" - inner_l2_len=%d", hdr_lens.inner_l2_len);
+		if (sw_packet_type & RTE_PTYPE_INNER_L4_MASK)
+			printf(" - inner_l4_len=%d", hdr_lens.inner_l4_len);
+		if (is_encapsulation) {
+			struct ipv4_hdr *ipv4_hdr;
+			struct ipv6_hdr *ipv6_hdr;
+			struct udp_hdr *udp_hdr;
+			uint8_t l2_len;
+			uint8_t l3_len;
+			uint8_t l4_len;
+			uint8_t l4_proto;
+			struct  vxlan_hdr *vxlan_hdr;
+
+			l2_len  = sizeof(struct ether_hdr);
+
+			/* Do not support ipv4 option field */
+			if (RTE_ETH_IS_IPV4_HDR(packet_type)) {
+				l3_len = sizeof(struct ipv4_hdr);
+				ipv4_hdr = rte_pktmbuf_mtod_offset(mb,
+				struct ipv4_hdr *,
+				l2_len);
+				l4_proto = ipv4_hdr->next_proto_id;
+			} else {
+				l3_len = sizeof(struct ipv6_hdr);
+				ipv6_hdr = rte_pktmbuf_mtod_offset(mb,
+				struct ipv6_hdr *,
+				l2_len);
+				l4_proto = ipv6_hdr->proto;
+			}
+			if (l4_proto == IPPROTO_UDP) {
+				udp_hdr = rte_pktmbuf_mtod_offset(mb,
+				struct udp_hdr *,
+				l2_len + l3_len);
+				l4_len = sizeof(struct udp_hdr);
+				vxlan_hdr = rte_pktmbuf_mtod_offset(mb,
+				struct vxlan_hdr *,
+				l2_len + l3_len + l4_len);
+
+				printf(" - VXLAN packet: packet type =%d, "
+				       "Destination UDP port =%d, VNI = %d",
+				       packet_type,
+				       RTE_BE_TO_CPU_16(udp_hdr->dst_port),
+				       rte_be_to_cpu_32(vxlan_hdr->vx_vni) >> 8);
+			}
+		}
+		printf(" - Receive queue=0x%x", (unsigned int) fs->rx_queue);
+		printf("\n");
+		rte_get_rx_ol_flag_list(mb->ol_flags, buf, sizeof(buf));
+		printf("  ol_flags: %s\n", buf);
+	}
+}
-- 
2.7.4