* [PATCH v2] app/testpmd: verify MTU with device provided limits
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@ 2019-03-29 17:48 ` Ferruh Yigit
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From: Ferruh Yigit @ 2019-03-29 17:48 UTC (permalink / raw)
To: Wenzhuo Lu, Jingjing Wu, Bernard Iremonger; +Cc: dev, Ian Stokes
From: Ian Stokes <ian.stokes@intel.com>
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 <ian.stokes@intel.com>
---
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 b9e5dd923..cadcb512f 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
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