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authorFlorin Coras <fcoras@cisco.com>2022-10-18 18:37:56 -0700
committerDave Wallace <dwallacelf@gmail.com>2022-10-20 18:14:32 +0000
commitf8ee39ff715ec713045af69da465ba4da8248212 (patch)
treeb9625b2f2b3effaabaded647b06d6ba871d71d6a /src/vnet/udp/udp.c
parent20de85b6da7e0b6dd0d73bc8358e7c67564d0c36 (diff)
udp: support for disabling tx csum
Type: feature Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I84843eb3a0a66c64cd46536624633e0dae1c4681
Diffstat (limited to 'src/vnet/udp/udp.c')
-rw-r--r--src/vnet/udp/udp.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/src/vnet/udp/udp.c b/src/vnet/udp/udp.c
index c919c958254..7851da8e91b 100644
--- a/src/vnet/udp/udp.c
+++ b/src/vnet/udp/udp.c
@@ -194,6 +194,8 @@ udp_session_bind (u32 session_index, transport_endpoint_cfg_t *lcl)
else
listener->c_flags |= TRANSPORT_CONNECTION_F_CLESS;
clib_spinlock_init (&listener->rx_lock);
+ if (!um->csum_offload)
+ listener->cfg_flags |= UDP_CFG_F_NO_CSUM_OFFLOAD;
udp_connection_register_port (lcl_port_ho, lcl->is_ip4);
return listener->c_c_index;
@@ -225,7 +227,8 @@ udp_session_get_listener (u32 listener_index)
always_inline u32
udp_push_one_header (vlib_main_t *vm, udp_connection_t *uc, vlib_buffer_t *b)
{
- vlib_buffer_push_udp (b, uc->c_lcl_port, uc->c_rmt_port, 1);
+ vlib_buffer_push_udp (b, uc->c_lcl_port, uc->c_rmt_port,
+ udp_csum_offload (uc));
b->flags |= VNET_BUFFER_F_LOCALLY_ORIGINATED;
/* reuse tcp medatada for now */
vnet_buffer (b)->tcp.connection_index = uc->c_c_index;
@@ -405,6 +408,8 @@ conn_alloc:
clib_spinlock_init (&uc->rx_lock);
uc->c_flags |= TRANSPORT_CONNECTION_F_CLESS;
}
+ if (!um->csum_offload)
+ uc->cfg_flags |= UDP_CFG_F_NO_CSUM_OFFLOAD;
uc->next_node_index = rmt->next_node_index;
uc->next_node_opaque = rmt->next_node_opaque;
@@ -519,6 +524,7 @@ udp_init (vlib_main_t * vm)
vlib_node_add_next (vm, udp6_local_node.index, udp6_input_node.index);
um->default_mtu = 1500;
+ um->csum_offload = 1;
return 0;
}