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-rw-r--r--app/test-pmd/config.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
index b9e5dd9..cadcb51 100644
--- a/app/test-pmd/config.c
+++ b/app/test-pmd/config.c
@@ -1063,9 +1063,16 @@ void
port_mtu_set(portid_t port_id, uint16_t mtu)
{
int diag;
+ struct rte_eth_dev_info dev_info;
if (port_id_is_invalid(port_id, ENABLED_WARN))
return;
+ rte_eth_dev_info_get(port_id, &dev_info);
+ if (mtu > dev_info.max_mtu || mtu < dev_info.min_mtu) {
+ printf("Set MTU failed. MTU:%u is not in valid range, min:%u - max:%u\n",
+ mtu, dev_info.min_mtu, dev_info.max_mtu);
+ return;
+ }
diag = rte_eth_dev_set_mtu(port_id, mtu);
if (diag == 0)
return;