app/crypto-perf: check minimum lcore number

The crypto performance application requires at least
two cores: one master core that launches the other slaves
and one core acting as slave running the crypto device.

Fixes: f8be1786b1b8 ("app/crypto-perf: introduce performance test application")
Cc: stable@dpdk.org
Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Acked-by: Fiona Trahe <fiona.trahe@intel.com>

diff --git a/app/test-crypto-perf/main.c b/app/test-crypto-perf/main.c
index d905e13..26e78ff 100644 (file)
--- a/app/test-crypto-perf/main.c
+++ b/app/test-crypto-perf/main.c
@@ -80,6 +80,12 @@ cperf_initialize_cryptodev(struct cperf_options *opts, uint8_t *enabled_cdevs,
 
        nb_lcores = rte_lcore_count() - 1;
 
+       if (nb_lcores < 1) {
+               RTE_LOG(ERR, USER1,
+                       "Number of enabled cores need to be higher than 1\n");
+               return -EINVAL;
+       }
+
        /*
         * Use less number of devices,
         * if there are more available than cores.