From: Daniel Mrzyglod Date: Fri, 27 Oct 2017 16:24:08 +0000 (+0200) Subject: test/pmd_perf: fix crash with multiple devices X-Git-Tag: spdx-start~911 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=7fd72d49ea789d35230f2f4f28a27baa1164c68c;p=dpdk.git test/pmd_perf: fix crash with multiple devices Error can be reproduce if we run pmd_perf_autotest with more then one device in such way: RTE>>set_rxtx_sc poll_before_xmit RTE>>pmd_perf_autotest if first burst was value less than MAX_PKT_BURST in the end we overwrite pkts_burst table for rx which was supposed for another interface. Fixes: 002ade70e933 ("app/test: measure cycles per packet in Rx/Tx") Cc: stable@dpdk.org Signed-off-by: Daniel Mrzyglod Acked-by: Michal Jastrzebski --- diff --git a/test/test/test_pmd_perf.c b/test/test/test_pmd_perf.c index a3e29ed9e6..255f2607bc 100644 --- a/test/test/test_pmd_perf.c +++ b/test/test/test_pmd_perf.c @@ -572,6 +572,7 @@ poll_burst(void *args) unsigned i, portid, nb_rx = 0; uint64_t total; uint64_t timeout = MAX_IDLE; + int num[RTE_MAX_ETHPORTS]; lcore_id = rte_lcore_id(); conf = &lcore_conf[lcore_id]; @@ -591,6 +592,7 @@ poll_burst(void *args) for (i = 0; i < conf->nb_ports; i++) { portid = conf->portlist[i]; next[portid] = i * pkt_per_port; + num[portid] = pkt_per_port; } while (!rte_atomic64_read(&start)) @@ -601,8 +603,8 @@ poll_burst(void *args) for (i = 0; i < conf->nb_ports; i++) { portid = conf->portlist[i]; nb_rx = rte_eth_rx_burst(portid, 0, - &pkts_burst[next[portid]], - MAX_PKT_BURST); + &pkts_burst[next[portid]], + RTE_MIN(MAX_PKT_BURST, num[portid])); if (unlikely(nb_rx == 0)) { timeout--; if (unlikely(timeout == 0)) @@ -610,6 +612,7 @@ poll_burst(void *args) continue; } next[portid] += nb_rx; + num[portid] -= nb_rx; total -= nb_rx; } } @@ -618,7 +621,6 @@ timeout: printf("%"PRIu64" packets lost, IDLE %"PRIu64" times\n", total, MAX_IDLE - timeout); - /* clean up */ total = pkt_per_port * conf->nb_ports - total; for (i = 0; i < total; i++) @@ -644,7 +646,7 @@ exec_burst(uint32_t flags, int lcore) conf = &lcore_conf[lcore]; pkt_per_port = MAX_TRAFFIC_BURST; - num = pkt_per_port; + num = pkt_per_port * conf->nb_ports; rte_atomic64_init(&start); @@ -661,11 +663,12 @@ exec_burst(uint32_t flags, int lcore) nb_tx = RTE_MIN(MAX_PKT_BURST, num); for (i = 0; i < conf->nb_ports; i++) { portid = conf->portlist[i]; - rte_eth_tx_burst(portid, 0, + nb_tx = rte_eth_tx_burst(portid, 0, &tx_burst[idx], nb_tx); idx += nb_tx; + num -= nb_tx; } - num -= nb_tx; + } sleep(5);