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Diffstat (limited to 'src/vnet/hdlc/node.c')
-rw-r--r--src/vnet/hdlc/node.c130
1 files changed, 81 insertions, 49 deletions
diff --git a/src/vnet/hdlc/node.c b/src/vnet/hdlc/node.c
index 57e04c85bae..6b8c7c625d2 100644
--- a/src/vnet/hdlc/node.c
+++ b/src/vnet/hdlc/node.c
@@ -46,43 +46,46 @@
_ (PUNT, "error-punt") \
_ (DROP, "error-drop")
-typedef enum {
+typedef enum
+{
#define _(s,n) HDLC_INPUT_NEXT_##s,
foreach_hdlc_input_next
#undef _
- HDLC_INPUT_N_NEXT,
+ HDLC_INPUT_N_NEXT,
} hdlc_input_next_t;
-typedef struct {
+typedef struct
+{
u8 packet_data[32];
} hdlc_input_trace_t;
-static u8 * format_hdlc_input_trace (u8 * s, va_list * va)
+static u8 *
+format_hdlc_input_trace (u8 * s, va_list * va)
{
CLIB_UNUSED (vlib_main_t * vm) = va_arg (*va, vlib_main_t *);
CLIB_UNUSED (vlib_node_t * node) = va_arg (*va, vlib_node_t *);
- hdlc_input_trace_t * t = va_arg (*va, hdlc_input_trace_t *);
+ hdlc_input_trace_t *t = va_arg (*va, hdlc_input_trace_t *);
s = format (s, "%U", format_hdlc_header, t->packet_data);
return s;
}
-typedef struct {
+typedef struct
+{
/* Sparse vector mapping hdlc protocol in network byte order
to next index. */
- u16 * next_by_protocol;
+ u16 *next_by_protocol;
- u32 * sparse_index_by_next_index;
+ u32 *sparse_index_by_next_index;
} hdlc_input_runtime_t;
static uword
hdlc_input (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
+ vlib_node_runtime_t * node, vlib_frame_t * from_frame)
{
- hdlc_input_runtime_t * rt = (void *) node->runtime_data;
- u32 n_left_from, next_index, i_next, * from, * to_next;
+ hdlc_input_runtime_t *rt = (void *) node->runtime_data;
+ u32 n_left_from, next_index, i_next, *from, *to_next;
from = vlib_frame_vector_args (from_frame);
n_left_from = from_frame->n_vectors;
@@ -101,19 +104,18 @@ hdlc_input (vlib_main_t * vm,
{
u32 n_left_to_next;
- vlib_get_next_frame (vm, node, next_index,
- to_next, n_left_to_next);
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
while (n_left_from >= 4 && n_left_to_next >= 2)
{
u32 bi0, bi1;
- vlib_buffer_t * b0, * b1;
- hdlc_header_t * h0, * h1;
+ vlib_buffer_t *b0, *b1;
+ hdlc_header_t *h0, *h1;
u32 i0, i1, len0, len1, protocol0, protocol1, enqueue_code;
/* Prefetch next iteration. */
{
- vlib_buffer_t * b2, * b3;
+ vlib_buffer_t *b2, *b3;
b2 = vlib_get_buffer (vm, from[2]);
b3 = vlib_get_buffer (vm, from[3]);
@@ -146,7 +148,7 @@ hdlc_input (vlib_main_t * vm,
/* Add padding bytes for OSI protocols. */
len0 = sizeof (h0[0]);
len1 = sizeof (h1[0]);
-
+
len0 += protocol0 == clib_host_to_net_u16 (HDLC_PROTOCOL_osi);
len1 += protocol1 == clib_host_to_net_u16 (HDLC_PROTOCOL_osi);
@@ -157,12 +159,19 @@ hdlc_input (vlib_main_t * vm,
b1->current_length -= len1;
/* Index sparse array with network byte order. */
- sparse_vec_index2 (rt->next_by_protocol, protocol0, protocol1, &i0, &i1);
+ sparse_vec_index2 (rt->next_by_protocol, protocol0, protocol1, &i0,
+ &i1);
- b0->error = node->errors[i0 == SPARSE_VEC_INVALID_INDEX ? HDLC_ERROR_UNKNOWN_PROTOCOL : HDLC_ERROR_NONE];
- b1->error = node->errors[i1 == SPARSE_VEC_INVALID_INDEX ? HDLC_ERROR_UNKNOWN_PROTOCOL : HDLC_ERROR_NONE];
+ b0->error =
+ node->errors[i0 ==
+ SPARSE_VEC_INVALID_INDEX ?
+ HDLC_ERROR_UNKNOWN_PROTOCOL : HDLC_ERROR_NONE];
+ b1->error =
+ node->errors[i1 ==
+ SPARSE_VEC_INVALID_INDEX ?
+ HDLC_ERROR_UNKNOWN_PROTOCOL : HDLC_ERROR_NONE];
- enqueue_code = (i0 != i_next) + 2*(i1 != i_next);
+ enqueue_code = (i0 != i_next) + 2 * (i1 != i_next);
if (PREDICT_FALSE (enqueue_code != 0))
{
@@ -173,39 +182,48 @@ hdlc_input (vlib_main_t * vm,
to_next[-2] = bi1;
to_next -= 1;
n_left_to_next += 1;
- vlib_set_next_frame_buffer (vm, node, vec_elt (rt->next_by_protocol, i0), bi0);
+ vlib_set_next_frame_buffer (vm, node,
+ vec_elt (rt->next_by_protocol,
+ i0), bi0);
break;
case 2:
/* A A B */
to_next -= 1;
n_left_to_next += 1;
- vlib_set_next_frame_buffer (vm, node, vec_elt (rt->next_by_protocol, i1), bi1);
+ vlib_set_next_frame_buffer (vm, node,
+ vec_elt (rt->next_by_protocol,
+ i1), bi1);
break;
case 3:
/* A B B or A B C */
to_next -= 2;
n_left_to_next += 2;
- vlib_set_next_frame_buffer (vm, node, vec_elt (rt->next_by_protocol, i0), bi0);
- vlib_set_next_frame_buffer (vm, node, vec_elt (rt->next_by_protocol, i1), bi1);
+ vlib_set_next_frame_buffer (vm, node,
+ vec_elt (rt->next_by_protocol,
+ i0), bi0);
+ vlib_set_next_frame_buffer (vm, node,
+ vec_elt (rt->next_by_protocol,
+ i1), bi1);
if (i0 == i1)
{
vlib_put_next_frame (vm, node, next_index,
n_left_to_next);
i_next = i1;
next_index = vec_elt (rt->next_by_protocol, i_next);
- vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+ vlib_get_next_frame (vm, node, next_index, to_next,
+ n_left_to_next);
}
}
}
}
-
+
while (n_left_from > 0 && n_left_to_next > 0)
{
u32 bi0;
- vlib_buffer_t * b0;
- hdlc_header_t * h0;
+ vlib_buffer_t *b0;
+ hdlc_header_t *h0;
u32 i0, len0, protocol0;
bi0 = from[0];
@@ -230,8 +248,11 @@ hdlc_input (vlib_main_t * vm,
i0 = sparse_vec_index (rt->next_by_protocol, protocol0);
- b0->error = node->errors[i0 == SPARSE_VEC_INVALID_INDEX ? HDLC_ERROR_UNKNOWN_PROTOCOL : HDLC_ERROR_NONE];
-
+ b0->error =
+ node->errors[i0 ==
+ SPARSE_VEC_INVALID_INDEX ?
+ HDLC_ERROR_UNKNOWN_PROTOCOL : HDLC_ERROR_NONE];
+
/* Sent packet to wrong next? */
if (PREDICT_FALSE (i0 != i_next))
{
@@ -256,12 +277,13 @@ hdlc_input (vlib_main_t * vm,
return from_frame->n_vectors;
}
-static char * hdlc_error_strings[] = {
+static char *hdlc_error_strings[] = {
#define hdlc_error(n,s) s,
#include "error.def"
#undef hdlc_error
};
+/* *INDENT-OFF* */
VLIB_REGISTER_NODE (hdlc_input_node) = {
.function = hdlc_input,
.name = "hdlc-input",
@@ -284,14 +306,16 @@ VLIB_REGISTER_NODE (hdlc_input_node) = {
.format_trace = format_hdlc_input_trace,
.unformat_buffer = unformat_hdlc_header,
};
+/* *INDENT-ON* */
-static clib_error_t * hdlc_input_runtime_init (vlib_main_t * vm)
+static clib_error_t *
+hdlc_input_runtime_init (vlib_main_t * vm)
{
- hdlc_input_runtime_t * rt;
+ hdlc_input_runtime_t *rt;
rt = vlib_node_get_runtime_data (vm, hdlc_input_node.index);
rt->next_by_protocol = sparse_vec_new
- (/* elt bytes */ sizeof (rt->next_by_protocol[0]),
+ ( /* elt bytes */ sizeof (rt->next_by_protocol[0]),
/* bits in index */ BITS (((hdlc_header_t *) 0)->protocol));
vec_validate (rt->sparse_index_by_next_index, HDLC_INPUT_NEXT_DROP);
@@ -304,11 +328,12 @@ static clib_error_t * hdlc_input_runtime_init (vlib_main_t * vm)
return 0;
}
-static clib_error_t * hdlc_input_init (vlib_main_t * vm)
+static clib_error_t *
+hdlc_input_init (vlib_main_t * vm)
{
{
- clib_error_t * error = vlib_call_init_function (vm, hdlc_init);
+ clib_error_t *error = vlib_call_init_function (vm, hdlc_init);
if (error)
clib_error_report (error);
}
@@ -324,30 +349,29 @@ VLIB_WORKER_INIT_FUNCTION (hdlc_input_runtime_init);
void
hdlc_register_input_protocol (vlib_main_t * vm,
- hdlc_protocol_t protocol,
- u32 node_index)
+ hdlc_protocol_t protocol, u32 node_index)
{
- hdlc_main_t * em = &hdlc_main;
- hdlc_protocol_info_t * pi;
- hdlc_input_runtime_t * rt;
- u16 * n;
+ hdlc_main_t *em = &hdlc_main;
+ hdlc_protocol_info_t *pi;
+ hdlc_input_runtime_t *rt;
+ u16 *n;
u32 i;
{
- clib_error_t * error = vlib_call_init_function (vm, hdlc_input_init);
+ clib_error_t *error = vlib_call_init_function (vm, hdlc_input_init);
if (error)
clib_error_report (error);
}
pi = hdlc_get_protocol_info (em, protocol);
pi->node_index = node_index;
- pi->next_index = vlib_node_add_next (vm,
- hdlc_input_node.index,
- node_index);
+ pi->next_index = vlib_node_add_next (vm, hdlc_input_node.index, node_index);
/* Setup hdlc protocol -> next index sparse vector mapping. */
rt = vlib_node_get_runtime_data (vm, hdlc_input_node.index);
- n = sparse_vec_validate (rt->next_by_protocol, clib_host_to_net_u16 (protocol));
+ n =
+ sparse_vec_validate (rt->next_by_protocol,
+ clib_host_to_net_u16 (protocol));
n[0] = pi->next_index;
/* Rebuild next index -> sparse index inverse mapping when sparse vector
@@ -356,3 +380,11 @@ hdlc_register_input_protocol (vlib_main_t * vm,
for (i = 1; i < vec_len (rt->next_by_protocol); i++)
rt->sparse_index_by_next_index[rt->next_by_protocol[i]] = i;
}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */