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authorDamjan Marion <damarion@cisco.com>2022-01-06 21:14:08 +0100
committerDamjan Marion <damarion@cisco.com>2022-01-17 12:41:24 +0100
commit88a9c0e02ab919cadd4e035133995a6afb4d1c32 (patch)
tree15741e8bbe6c9d7077fa2a62b6ac369a17836cfb /src/plugins/af_xdp/device.c
parent81bb6fc611d321a92ad2218e1b852db67980768a (diff)
interface: improve MTU handling
- per hw-interface-class handlers - ethernet set_mtu callback - driver can now refuse MTU change Type: improvement Change-Id: I3d37c9129930ebec7bb70caf4263025413873048 Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/plugins/af_xdp/device.c')
-rw-r--r--src/plugins/af_xdp/device.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/src/plugins/af_xdp/device.c b/src/plugins/af_xdp/device.c
index 4aa36d95dd5..a5e0b739300 100644
--- a/src/plugins/af_xdp/device.c
+++ b/src/plugins/af_xdp/device.c
@@ -67,6 +67,15 @@ af_xdp_mac_change (vnet_hw_interface_t * hw, const u8 * old, const u8 * new)
return 0;
}
+static clib_error_t *
+af_xdp_set_mtu (vnet_main_t *vnm, vnet_hw_interface_t *hw, u32 mtu)
+{
+ af_xdp_main_t *am = &af_xdp_main;
+ af_xdp_device_t *ad = vec_elt_at_index (am->devices, hw->dev_instance);
+ af_xdp_log (VLIB_LOG_LEVEL_ERR, ad, "set mtu not supported yet");
+ return vnet_error (VNET_ERR_UNSUPPORTED, 0);
+}
+
static u32
af_xdp_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hw, u32 flags)
{
@@ -82,9 +91,6 @@ af_xdp_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hw, u32 flags)
af_xdp_log (VLIB_LOG_LEVEL_ERR, ad,
"set promiscuous not supported yet");
return ~0;
- case ETHERNET_INTERFACE_FLAG_MTU:
- af_xdp_log (VLIB_LOG_LEVEL_ERR, ad, "set mtu not supported yet");
- return ~0;
}
af_xdp_log (VLIB_LOG_LEVEL_ERR, ad, "unknown flag %x requested", flags);
@@ -651,6 +657,7 @@ af_xdp_create_if (vlib_main_t * vm, af_xdp_create_if_args_t * args)
eir.dev_instance = ad->dev_instance;
eir.address = ad->hwaddr;
eir.cb.flag_change = af_xdp_flag_change;
+ eir.cb.set_mtu = af_xdp_set_mtu;
ad->hw_if_index = vnet_eth_register_interface (vnm, &eir);
sw = vnet_get_hw_sw_interface (vnm, ad->hw_if_index);