[dpdk-dev] [PATCH v2 16/16] app/testpmd: display software packet type

[Olivier Matz]

In addition to the packet type returned by the PMD, also display the
packet type calculated by parsing the packet in software. This is
particularly useful to compare the 2 values.

Note: it does not mean that both hw and sw always have to provide the
same value, since it depends on what hardware supports.

Signed-off-by: Olivier Matz <olivier.matz at 6wind.com>
---
 app/test-pmd/rxonly.c | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/app/test-pmd/rxonly.c b/app/test-pmd/rxonly.c
index aba07ee..b83d0c7 100644
--- a/app/test-pmd/rxonly.c
+++ b/app/test-pmd/rxonly.c
@@ -67,6 +67,7 @@
 #include <rte_string_fns.h>
 #include <rte_ip.h>
 #include <rte_udp.h>
+#include <rte_net.h>

 #include "testpmd.h"

@@ -93,6 +94,8 @@ pkt_burst_receive(struct fwd_stream *fs)
        uint16_t i, packet_type;
        uint16_t is_encapsulation;
        char buf[256];
+       struct rte_net_hdr_lens hdr_lens;
+       uint32_t sw_packet_type;

 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
        uint64_t start_tsc;
@@ -164,8 +167,26 @@ pkt_burst_receive(struct fwd_stream *fs)
                                        mb->vlan_tci, mb->vlan_tci_outer);
                if (mb->packet_type) {
                        rte_get_ptype_name(mb->packet_type, buf, sizeof(buf));
-                       printf(" - %s", 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(" - l3_len=%d", hdr_lens.l3_len);
+               if (sw_packet_type & RTE_PTYPE_L4_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_L3_MASK)
+                       printf(" - inner_l3_len=%d", hdr_lens.inner_l3_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;
-- 
2.8.1