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authorVengada Govindan <venggovi@cisco.com>2016-10-12 05:54:09 -0700
committerVengada Govindan <venggovi@cisco.com>2016-12-09 06:15:02 +0000
commit6d403a013276f095e542c9b6281db96354fa6f07 (patch)
tree3954b21a8fe2bb789d42f6f6234344d39c4e1e4d /plugins/ioam-plugin/ioam/export/node.c
parentc9b20bc7a5399fd1e7bf2d33e7c4f1f08ef1c1e4 (diff)
VPP-470: Introduce VxLAN-GPE as transport for iOAM.
See Jira ticket for more details - New plugins created to (a) Add VxLAN-GPE as transport (b) Provide export infra for VxLAN-GPE. Change-Id: Ife50c7434f53d17a4783062310f73d063d53494c Signed-off-by: Vengada Govindan <venggovi@cisco.com>
Diffstat (limited to 'plugins/ioam-plugin/ioam/export/node.c')
-rw-r--r--plugins/ioam-plugin/ioam/export/node.c209
1 files changed, 4 insertions, 205 deletions
diff --git a/plugins/ioam-plugin/ioam/export/node.c b/plugins/ioam-plugin/ioam/export/node.c
index 484bcb5d265..19f143dfbf3 100644
--- a/plugins/ioam-plugin/ioam/export/node.c
+++ b/plugins/ioam-plugin/ioam/export/node.c
@@ -17,7 +17,7 @@
#include <vnet/pg/pg.h>
#include <vppinfra/error.h>
#include <vnet/ip/ip.h>
-#include <ioam/export/ioam_export.h>
+#include <ioam/export-common/ioam_export.h>
typedef struct
{
@@ -124,210 +124,9 @@ ip6_export_node_fn (vlib_main_t * vm,
vlib_node_runtime_t * node, vlib_frame_t * frame)
{
ioam_export_main_t *em = &ioam_export_main;
- u32 n_left_from, *from, *to_next;
- export_next_t next_index;
- u32 pkts_recorded = 0;
- ioam_export_buffer_t *my_buf = 0;
- vlib_buffer_t *eb0 = 0;
- u32 ebi0 = 0;
- from = vlib_frame_vector_args (frame);
- n_left_from = frame->n_vectors;
- next_index = node->cached_next_index;
-
- while (__sync_lock_test_and_set (em->lockp[vm->cpu_index], 1))
- ;
- my_buf = ioam_export_get_my_buffer (vm->cpu_index);
- my_buf->touched_at = vlib_time_now (vm);
- while (n_left_from > 0)
- {
- u32 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 next0 = EXPORT_NEXT_POP_HBYH;
- u32 next1 = EXPORT_NEXT_POP_HBYH;
- u32 bi0, bi1;
- ip6_header_t *ip60, *ip61;
- vlib_buffer_t *p0, *p1;
- u32 ip_len0, ip_len1;
-
- /* Prefetch next iteration. */
- {
- vlib_buffer_t *p2, *p3;
-
- p2 = vlib_get_buffer (vm, from[2]);
- p3 = vlib_get_buffer (vm, from[3]);
-
- vlib_prefetch_buffer_header (p2, LOAD);
- vlib_prefetch_buffer_header (p3, LOAD);
-
- /* IPv6 + HbyH header + Trace option */
- /* 40 + 2 + [4 hdr] + [16]* no_of_nodes */
- /* 3 cache lines can get v6 hdr + trace option with upto 9 node trace */
- CLIB_PREFETCH (p2->data, 3 * CLIB_CACHE_LINE_BYTES, LOAD);
- CLIB_PREFETCH (p3->data, 3 * CLIB_CACHE_LINE_BYTES, LOAD);
- }
-
- /* speculatively enqueue p0 and p1 to the current next frame */
- to_next[0] = bi0 = from[0];
- to_next[1] = bi1 = from[1];
- from += 2;
- to_next += 2;
- n_left_from -= 2;
- n_left_to_next -= 2;
-
- p0 = vlib_get_buffer (vm, bi0);
- p1 = vlib_get_buffer (vm, bi1);
-
- ip60 = vlib_buffer_get_current (p0);
- ip61 = vlib_buffer_get_current (p1);
-
- ip_len0 =
- clib_net_to_host_u16 (ip60->payload_length) +
- sizeof (ip6_header_t);
- ip_len1 =
- clib_net_to_host_u16 (ip61->payload_length) +
- sizeof (ip6_header_t);
-
- ebi0 = my_buf->buffer_index;
- eb0 = vlib_get_buffer (vm, ebi0);
- if (PREDICT_FALSE (eb0 == 0))
- goto NO_BUFFER1;
-
- ip_len0 =
- ip_len0 > DEFAULT_EXPORT_SIZE ? DEFAULT_EXPORT_SIZE : ip_len0;
- ip_len1 =
- ip_len1 > DEFAULT_EXPORT_SIZE ? DEFAULT_EXPORT_SIZE : ip_len1;
-
- copy3cachelines (eb0->data + eb0->current_length, ip60, ip_len0);
- eb0->current_length += DEFAULT_EXPORT_SIZE;
- /* To maintain uniform size per export, each
- * record is default size, ip6 hdr can be
- * used to parse the record correctly
- */
- my_buf->records_in_this_buffer++;
- /* if number of buf exceeds max that fits in a MTU sized buffer
- * ship it to the queue and pick new one
- */
- if (my_buf->records_in_this_buffer >= DEFAULT_EXPORT_RECORDS)
- {
- ioam_export_send_buffer (vm, my_buf);
- ioam_export_init_buffer (vm, my_buf);
- }
-
- ebi0 = my_buf->buffer_index;
- eb0 = vlib_get_buffer (vm, ebi0);
- if (PREDICT_FALSE (eb0 == 0))
- goto NO_BUFFER1;
-
- copy3cachelines (eb0->data + eb0->current_length, ip61, ip_len1);
- eb0->current_length += DEFAULT_EXPORT_SIZE;
- my_buf->records_in_this_buffer++;
- if (my_buf->records_in_this_buffer >= DEFAULT_EXPORT_RECORDS)
- {
- ioam_export_send_buffer (vm, my_buf);
- ioam_export_init_buffer (vm, my_buf);
- }
-
- pkts_recorded += 2;
-
- if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
- {
- if (p0->flags & VLIB_BUFFER_IS_TRACED)
- {
- export_trace_t *t =
- vlib_add_trace (vm, node, p0, sizeof (*t));
- t->flow_label =
- clib_net_to_host_u32 (ip60->
- ip_version_traffic_class_and_flow_label);
- t->next_index = next0;
- }
- if (p1->flags & VLIB_BUFFER_IS_TRACED)
- {
- export_trace_t *t =
- vlib_add_trace (vm, node, p1, sizeof (*t));
- t->flow_label =
- clib_net_to_host_u32 (ip61->
- ip_version_traffic_class_and_flow_label);
- t->next_index = next1;
- }
- }
- NO_BUFFER1:
- /* verify speculative enqueues, maybe switch current next frame */
- vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
- to_next, n_left_to_next,
- bi0, bi1, next0, next1);
- }
-
- while (n_left_from > 0 && n_left_to_next > 0)
- {
- u32 bi0;
- vlib_buffer_t *p0;
- u32 next0 = EXPORT_NEXT_POP_HBYH;
- ip6_header_t *ip60;
- u32 ip_len0;
-
- /* speculatively enqueue p0 to the current next frame */
- bi0 = from[0];
- to_next[0] = bi0;
- from += 1;
- to_next += 1;
- n_left_from -= 1;
- n_left_to_next -= 1;
-
- p0 = vlib_get_buffer (vm, bi0);
- ip60 = vlib_buffer_get_current (p0);
- ip_len0 =
- clib_net_to_host_u16 (ip60->payload_length) +
- sizeof (ip6_header_t);
-
- ebi0 = my_buf->buffer_index;
- eb0 = vlib_get_buffer (vm, ebi0);
- if (PREDICT_FALSE (eb0 == 0))
- goto NO_BUFFER;
-
- ip_len0 =
- ip_len0 > DEFAULT_EXPORT_SIZE ? DEFAULT_EXPORT_SIZE : ip_len0;
- copy3cachelines (eb0->data + eb0->current_length, ip60, ip_len0);
- eb0->current_length += DEFAULT_EXPORT_SIZE;
- /* To maintain uniform size per export, each
- * record is default size, ip6 hdr can be
- * used to parse the record correctly
- */
- my_buf->records_in_this_buffer++;
- /* if number of buf exceeds max that fits in a MTU sized buffer
- * ship it to the queue and pick new one
- */
- if (my_buf->records_in_this_buffer >= DEFAULT_EXPORT_RECORDS)
- {
- ioam_export_send_buffer (vm, my_buf);
- ioam_export_init_buffer (vm, my_buf);
- }
- if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)
- && (p0->flags & VLIB_BUFFER_IS_TRACED)))
- {
- export_trace_t *t = vlib_add_trace (vm, node, p0, sizeof (*t));
- t->flow_label =
- clib_net_to_host_u32 (ip60->
- ip_version_traffic_class_and_flow_label);
- t->next_index = next0;
- }
-
- pkts_recorded += 1;
- NO_BUFFER:
- /* verify speculative enqueue, maybe switch current next frame */
- vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
- to_next, n_left_to_next,
- bi0, next0);
- }
-
- vlib_put_next_frame (vm, node, next_index, n_left_to_next);
- }
-
- vlib_node_increment_counter (vm, export_node.index,
- EXPORT_ERROR_RECORDED, pkts_recorded);
- *em->lockp[vm->cpu_index] = 0;
+ ioam_export_node_common(em, vm, node, frame, ip6_header_t, payload_length,
+ ip_version_traffic_class_and_flow_label,
+ EXPORT_NEXT_POP_HBYH);
return frame->n_vectors;
}