app/testpmd: add ability to split outgoing packets

[dpdk.git] / app / test-pmd / txonly.c

diff --git a/app/test-pmd/txonly.c b/app/test-pmd/txonly.c
index db8f37a..a903d4f 100644 (file)
--- a/app/test-pmd/txonly.c
+++ b/app/test-pmd/txonly.c
@@ -210,6 +210,7 @@ pkt_burst_transmit(struct fwd_stream *fs)
        uint64_t end_tsc;
        uint64_t core_cycles;
 #endif
+       uint32_t nb_segs, pkt_len;
 
 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
        start_tsc = rte_rdtsc();
@@ -233,7 +234,12 @@ pkt_burst_transmit(struct fwd_stream *fs)
                }
                pkt->data_len = tx_pkt_seg_lengths[0];
                pkt_seg = pkt;
-               for (i = 1; i < tx_pkt_nb_segs; i++) {
+               if (tx_pkt_split == TX_PKT_SPLIT_RND)
+                       nb_segs = random() % tx_pkt_nb_segs + 1;
+               else
+                       nb_segs = tx_pkt_nb_segs;
+               pkt_len = pkt->data_len;
+               for (i = 1; i < nb_segs; i++) {
                        pkt_seg->next = tx_mbuf_alloc(mbp);
                        if (pkt_seg->next == NULL) {
                                pkt->nb_segs = i;
@@ -242,6 +248,7 @@ pkt_burst_transmit(struct fwd_stream *fs)
                        }
                        pkt_seg = pkt_seg->next;
                        pkt_seg->data_len = tx_pkt_seg_lengths[i];
+                       pkt_len += pkt_seg->data_len;
                }
                pkt_seg->next = NULL; /* Last segment of packet. */
 
@@ -266,8 +273,8 @@ pkt_burst_transmit(struct fwd_stream *fs)
                 * Complete first mbuf of packet and append it to the
                 * burst of packets to be transmitted.
                 */
-               pkt->nb_segs = tx_pkt_nb_segs;
-               pkt->pkt_len = tx_pkt_length;
+               pkt->nb_segs = nb_segs;
+               pkt->pkt_len = pkt_len;
                pkt->ol_flags = ol_flags;
                pkt->vlan_tci = vlan_tci;
                pkt->vlan_tci_outer = vlan_tci_outer;