testpmd flows

diff --git a/app/test-pmd/txonly.c b/app/test-pmd/txonly.c
index 3caf281cb..5f4407773 100644
--- a/app/test-pmd/txonly.c
+++ b/app/test-pmd/txonly.c
@@ -238,6 +238,9 @@ pkt_burst_transmit(struct fwd_stream *fs)
    uint32_t retry;
    uint64_t ol_flags = 0;
    uint64_t tx_offloads;
+   static uint16_t l2inc, l3inc;
+   uint16_t *l2last = (uint16_t *)(eth_hdr.s_addr.addr_bytes + 4);
+   uint16_t *l3last = &pkt_udp_hdr.src_port;
 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
    uint64_t start_tsc;
    uint64_t end_tsc;
@@ -266,6 +269,8 @@ pkt_burst_transmit(struct fwd_stream *fs)
    rte_ether_addr_copy(&peer_eth_addrs[fs->peer_addr], &eth_hdr.d_addr);
    rte_ether_addr_copy(&ports[fs->tx_port].eth_addr, &eth_hdr.s_addr);
    eth_hdr.ether_type = rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4);
+   (*l2last)++;
+   (*l3last)++;

    if (rte_mempool_get_bulk(mbp, (void **)pkts_burst,
                nb_pkt_per_burst) == 0) {
diff --git a/config/common_linux b/config/common_linux
index c5cf3d662..16e1c4f0c 100644
--- a/config/common_linux
+++ b/config/common_linux
@@ -8,9 +8,9 @@ CONFIG_RTE_EXEC_ENV_LINUX=y
 CONFIG_RTE_EXEC_ENV_LINUXAPP=y

 CONFIG_RTE_EAL_NUMA_AWARE_HUGEPAGES=y
-CONFIG_RTE_EAL_IGB_UIO=y
+#CONFIG_RTE_EAL_IGB_UIO=y
 CONFIG_RTE_EAL_VFIO=y
-CONFIG_RTE_KNI_KMOD=y
+#CONFIG_RTE_KNI_KMOD=y
 CONFIG_RTE_LIBRTE_KNI=y
 CONFIG_RTE_LIBRTE_PMD_KNI=y
 CONFIG_RTE_LIBRTE_VHOST=y