app/testpmd: allocate txonly segments per bulk

Use bulk ops for allocating segments instead of having a inner loop
for every segment.
This reduces the number of calls to the mempool layer.

Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>

diff --git a/app/test-pmd/txonly.c b/app/test-pmd/txonly.c
index 0d411db..65171c1 100644 (file)
--- a/app/test-pmd/txonly.c
+++ b/app/test-pmd/txonly.c
@@ -155,6 +155,7 @@ static void
 pkt_burst_transmit(struct fwd_stream *fs)
 {
        struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
+       struct rte_mbuf *pkt_segs[RTE_MAX_SEGS_PER_PKT];
        struct rte_port *txp;
        struct rte_mbuf *pkt;
        struct rte_mbuf *pkt_seg;
@@ -216,18 +217,23 @@ pkt_burst_transmit(struct fwd_stream *fs)
                rte_pktmbuf_reset_headroom(pkt);
                pkt->data_len = tx_pkt_seg_lengths[0];
                pkt_seg = pkt;
+
                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 = rte_mbuf_raw_alloc(mbp);
-                       if (pkt_seg->next == NULL) {
-                               pkt->nb_segs = i;
+
+               if (nb_segs > 1) {
+                       if (rte_mempool_get_bulk(mbp, (void **)pkt_segs,
+                                                       nb_segs)) {
                                rte_pktmbuf_free(pkt);
                                goto nomore_mbuf;
                        }
+               }
+
+               pkt_len = pkt->data_len;
+               for (i = 1; i < nb_segs; i++) {
+                       pkt_seg->next = pkt_segs[i - 1];
                        pkt_seg = pkt_seg->next;
                        pkt_seg->data_len = tx_pkt_seg_lengths[i];
                        pkt_len += pkt_seg->data_len;