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vnet: introduce vnet_error()
[vpp.git]
/
src
/
vnet
/
interface.c
diff --git
a/src/vnet/interface.c
b/src/vnet/interface.c
index
982abbd
..
05a1c7c
100644
(file)
--- a/
src/vnet/interface.c
+++ b/
src/vnet/interface.c
@@
-768,18
+768,25
@@
sw_interface_walk_callback (vnet_main_t * vnm, u32 sw_if_index, void *ctx)
return WALK_CONTINUE;
}
return WALK_CONTINUE;
}
-void
-vnet_hw_interface_set_mtu (vnet_main_t *
vnm, u32 hw_if_index, u32 mtu)
+clib_error_t *
+vnet_hw_interface_set_mtu (vnet_main_t *vnm, u32 hw_if_index, u32 mtu)
{
vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
if (hi->max_packet_bytes != mtu)
{
{
vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
if (hi->max_packet_bytes != mtu)
{
+ if (mtu > hi->max_supported_packet_bytes ||
+ mtu < hi->min_supported_packet_bytes)
+ return vnet_error (VNET_ERR_INVALID_VALUE,
+ "requested mtu must be in the %u to %u range",
+ hi->min_supported_packet_bytes,
+ hi->max_supported_packet_bytes);
hi->max_packet_bytes = mtu;
ethernet_set_flags (vnm, hw_if_index, ETHERNET_INTERFACE_FLAG_MTU);
vnet_hw_interface_walk_sw (vnm, hw_if_index, sw_interface_walk_callback,
&mtu);
}
hi->max_packet_bytes = mtu;
ethernet_set_flags (vnm, hw_if_index, ETHERNET_INTERFACE_FLAG_MTU);
vnet_hw_interface_walk_sw (vnm, hw_if_index, sw_interface_walk_callback,
&mtu);
}
+ return 0;
}
static void
}
static void