examples/ip_reassembly: reduce memory usage

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>

diff --git a/examples/ip_reassembly/main.c b/examples/ip_reassembly/main.c
index d02a969..1b60e41 100644 (file)
--- a/examples/ip_reassembly/main.c
+++ b/examples/ip_reassembly/main.c
@@ -942,15 +942,15 @@ setup_queue_tbl(struct rx_queue *rxq, uint32_t lcore, uint32_t queue)
        }
 
        /*
-        * At any given moment up to <max_flow_num * (MAX_FRAG_NUM - 1)>
+        * At any given moment up to <max_flow_num * (MAX_FRAG_NUM)>
         * mbufs could be stored int the fragment table.
         * Plus, each TX queue can hold up to <max_flow_num> packets.
         */
 
-       nb_mbuf = 2 * RTE_MAX(max_flow_num, 2UL * MAX_PKT_BURST) * MAX_FRAG_NUM;
+       nb_mbuf = RTE_MAX(max_flow_num, 2UL * MAX_PKT_BURST) * MAX_FRAG_NUM;
        nb_mbuf *= (port_conf.rxmode.max_rx_pkt_len + BUF_SIZE - 1) / BUF_SIZE;
-       nb_mbuf += RTE_TEST_RX_DESC_DEFAULT + RTE_TEST_TX_DESC_DEFAULT;
        nb_mbuf *= 2; /* ipv4 and ipv6 */
+       nb_mbuf += RTE_TEST_RX_DESC_DEFAULT + RTE_TEST_TX_DESC_DEFAULT;
 
        nb_mbuf = RTE_MAX(nb_mbuf, (uint32_t)NB_MBUF);