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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/rdma
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/rdma')
-rw-r--r--src/plugins/rdma/device.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/src/plugins/rdma/device.c b/src/plugins/rdma/device.c
index cad5fdb541f..167a23213cc 100644
--- a/src/plugins/rdma/device.c
+++ b/src/plugins/rdma/device.c
@@ -183,11 +183,10 @@ rdma_mac_change (vnet_hw_interface_t * hw, const u8 * old, const u8 * new)
return 0;
}
-static u32
-rdma_dev_change_mtu (rdma_device_t * rd)
+static clib_error_t *
+rdma_set_mtu (vnet_main_t *vnm, vnet_hw_interface_t *hw, u32 mtu)
{
- rdma_log__ (VLIB_LOG_LEVEL_ERR, rd, "MTU change not supported");
- return ~0;
+ return vnet_error (VNET_ERR_UNSUPPORTED, 0);
}
static u32
@@ -202,8 +201,6 @@ rdma_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hw, u32 flags)
return rdma_dev_set_ucast (rd);
case ETHERNET_INTERFACE_FLAG_ACCEPT_ALL:
return rdma_dev_set_promisc (rd);
- case ETHERNET_INTERFACE_FLAG_MTU:
- return rdma_dev_change_mtu (rd);
}
rdma_log__ (VLIB_LOG_LEVEL_ERR, rd, "unknown flag %x requested", flags);
@@ -361,6 +358,7 @@ rdma_register_interface (vnet_main_t * vnm, rdma_device_t * rd)
eir.dev_instance = rd->dev_instance;
eir.address = rd->hwaddr.bytes;
eir.cb.flag_change = rdma_flag_change;
+ eir.cb.set_mtu = rdma_set_mtu;
rd->hw_if_index = vnet_eth_register_interface (vnm, &eir);
/* Indicate ability to support L3 DMAC filtering and
* initialize interface to L3 non-promisc mode */