1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
#ifndef __included_nat44_ei_hairpinning_h__
#define __included_nat44_ei_hairpinning_h__
#include <nat/nat44-ei/nat44_ei.h>
#define foreach_nat44_ei_hairpinning_handoff_error \
_ (CONGESTION_DROP, "congestion drop")
typedef enum
{
#define _(sym, str) NAT44_EI_HAIRPINNING_HANDOFF_ERROR_##sym,
foreach_nat44_ei_hairpinning_handoff_error
#undef _
NAT44_EI_HAIRPINNING_HANDOFF_N_ERROR,
} nat44_ei_hairpinning_handoff_error_t;
static char *nat44_ei_hairpinning_handoff_error_strings[] = {
#define _(sym, string) string,
foreach_nat44_ei_hairpinning_handoff_error
#undef _
};
typedef struct
{
u32 next_worker_index;
} nat44_ei_hairpinning_handoff_trace_t;
static u8 *
format_nat44_ei_hairpinning_handoff_trace (u8 *s, va_list *args)
{
CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
nat44_ei_hairpinning_handoff_trace_t *t =
va_arg (*args, nat44_ei_hairpinning_handoff_trace_t *);
s = format (s, "nat44-ei-hairpinning-handoff: next-worker %d",
t->next_worker_index);
return s;
}
always_inline uword
nat44_ei_hairpinning_handoff_fn_inline (vlib_main_t *vm,
vlib_node_runtime_t *node,
vlib_frame_t *frame, u32 fq_index)
{
vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b;
u32 n_enq, n_left_from, *from;
u16 thread_indices[VLIB_FRAME_SIZE], *ti;
from = vlib_frame_vector_args (frame);
n_left_from = frame->n_vectors;
vlib_get_buffers (vm, from, bufs, n_left_from);
b = bufs;
ti = thread_indices;
while (n_left_from > 0)
{
ti[0] = vnet_buffer (b[0])->snat.required_thread_index;
if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) &&
(b[0]->flags & VLIB_BUFFER_IS_TRACED)))
{
nat44_ei_hairpinning_handoff_trace_t *t =
vlib_add_trace (vm, node, b[0], sizeof (*t));
t->next_worker_index = ti[0];
}
n_left_from -= 1;
ti += 1;
b += 1;
}
n_enq = vlib_buffer_enqueue_to_thread (vm, fq_index, from, thread_indices,
frame->n_vectors, 1);
if (n_enq < frame->n_vectors)
vlib_node_increment_counter (
vm, node->node_index, NAT44_EI_HAIRPINNING_HANDOFF_ERROR_CONGESTION_DROP,
frame->n_vectors - n_enq);
return frame->n_vectors;
}
#endif // __included_nat44_ei_hairpinning_h__
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
|
