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-rw-r--r--src/vnet/pg/input.c29
1 files changed, 19 insertions, 10 deletions
diff --git a/src/vnet/pg/input.c b/src/vnet/pg/input.c
index 8ba3b361894..483add0b5f3 100644
--- a/src/vnet/pg/input.c
+++ b/src/vnet/pg/input.c
@@ -1530,10 +1530,9 @@ pg_input_trace (pg_main_t * pg,
}
static_always_inline void
-fill_gso_buffer_flags (vlib_main_t * vm, u32 * buffers, u32 n_buffers,
- u32 packet_data_size)
+fill_buffer_offload_flags (vlib_main_t * vm, u32 * buffers, u32 n_buffers,
+ int gso_enabled, u32 gso_size)
{
-
for (int i = 0; i < n_buffers; i++)
{
vlib_buffer_t *b0 = vlib_get_buffer (vm, buffers[i]);
@@ -1586,16 +1585,21 @@ fill_gso_buffer_flags (vlib_main_t * vm, u32 * buffers, u32 n_buffers,
VNET_BUFFER_F_L3_HDR_OFFSET_VALID |
VNET_BUFFER_F_L4_HDR_OFFSET_VALID);
}
+
if (l4_proto == IP_PROTOCOL_TCP)
{
- b0->flags |= (VNET_BUFFER_F_OFFLOAD_TCP_CKSUM | VNET_BUFFER_F_GSO);
+ b0->flags |= VNET_BUFFER_F_OFFLOAD_TCP_CKSUM;
tcp_header_t *tcp = (tcp_header_t *) (vlib_buffer_get_current (b0) +
vnet_buffer
(b0)->l4_hdr_offset);
- l4_hdr_sz = tcp_header_bytes (tcp);
tcp->checksum = 0;
- vnet_buffer2 (b0)->gso_l4_hdr_sz = l4_hdr_sz;
- vnet_buffer2 (b0)->gso_size = packet_data_size;
+ if (gso_enabled)
+ {
+ b0->flags |= VNET_BUFFER_F_GSO;
+ l4_hdr_sz = tcp_header_bytes (tcp);
+ vnet_buffer2 (b0)->gso_l4_hdr_sz = l4_hdr_sz;
+ vnet_buffer2 (b0)->gso_size = gso_size;
+ }
}
else if (l4_proto == IP_PROTOCOL_UDP)
{
@@ -1603,7 +1607,6 @@ fill_gso_buffer_flags (vlib_main_t * vm, u32 * buffers, u32 n_buffers,
udp_header_t *udp = (udp_header_t *) (vlib_buffer_get_current (b0) +
vnet_buffer
(b0)->l4_hdr_offset);
- vnet_buffer2 (b0)->gso_l4_hdr_sz = sizeof (*udp);
udp->checksum = 0;
}
}
@@ -1700,8 +1703,14 @@ pg_generate_packets (vlib_node_runtime_t * node,
vnet_buffer (b)->feature_arc_index = feature_arc_index;
}
- if (pi->gso_enabled)
- fill_gso_buffer_flags (vm, to_next, n_this_frame, pi->gso_size);
+ if (pi->gso_enabled ||
+ (s->buffer_flags & (VNET_BUFFER_F_OFFLOAD_TCP_CKSUM |
+ VNET_BUFFER_F_OFFLOAD_UDP_CKSUM |
+ VNET_BUFFER_F_OFFLOAD_IP_CKSUM)))
+ {
+ fill_buffer_offload_flags (vm, to_next, n_this_frame,
+ pi->gso_enabled, pi->gso_size);
+ }
n_trace = vlib_get_trace_count (vm, node);
if (n_trace > 0)