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app/testpmd: verify MTU with device provided limits

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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>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
This commit is contained in:
Ian Stokes 2019-03-29 17:52:19 +00:00 committed by Ferruh Yigit
parent ae35fd61fc
commit 0c85cab92f
1 changed files with 7 additions and 0 deletions
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7
app/test-pmd/config.c
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@ -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;