From 0c85cab92f3a9a5ebb81d7ceadd3f775f2d5c6ff Mon Sep 17 00:00:00 2001 From: Ian Stokes Date: Fri, 29 Mar 2019 17:52:19 +0000 Subject: [PATCH] app/testpmd: verify MTU with device provided limits This commit uses the MTU fields populated in rte_eth_dev_info_get() to validate the MTU value being passed in port_mtu_set(). Signed-off-by: Ian Stokes Reviewed-by: Ferruh Yigit --- app/test-pmd/config.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c index b9e5dd923b..cadcb512f1 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; -- 2.20.1