LCOV - code coverage report
Current view: top level - plugins/ioam/export-vxlan-gpe - vxlan_gpe_node.c (source / functions) Hit Total Coverage
Test: coverage-filtered.info Lines: 1 40 2.5 %
Date: 2023-10-26 01:39:38 Functions: 2 6 33.3 %

          Line data    Source code
       1             : /*
       2             :  * Copyright (c) 2016 Cisco and/or its affiliates.
       3             :  * Licensed under the Apache License, Version 2.0 (the "License");
       4             :  * you may not use this file except in compliance with the License.
       5             :  * You may obtain a copy of the License at:
       6             :  *
       7             :  *     http://www.apache.org/licenses/LICENSE-2.0
       8             :  *
       9             :  * Unless required by applicable law or agreed to in writing, software
      10             :  * distributed under the License is distributed on an "AS IS" BASIS,
      11             :  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      12             :  * See the License for the specific language governing permissions and
      13             :  * limitations under the License.
      14             :  */
      15             : #include <vlib/vlib.h>
      16             : #include <vnet/vnet.h>
      17             : #include <vppinfra/error.h>
      18             : #include <vnet/ip/ip.h>
      19             : #include <vnet/vxlan-gpe/vxlan_gpe.h>
      20             : #include <vnet/vxlan-gpe/vxlan_gpe_packet.h>
      21             : #include <ioam/export-common/ioam_export.h>
      22             : 
      23             : typedef struct
      24             : {
      25             :   u32 next_index;
      26             :   u32 flow_label;
      27             : } export_trace_t;
      28             : 
      29             : /* packet trace format function */
      30             : static u8 *
      31           0 : format_export_trace (u8 * s, va_list * args)
      32             : {
      33           0 :   CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
      34           0 :   CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
      35           0 :   export_trace_t *t = va_arg (*args, export_trace_t *);
      36             : 
      37           0 :   s = format (s, "EXPORT: flow_label %d, next index %d",
      38             :               t->flow_label, t->next_index);
      39           0 :   return s;
      40             : }
      41             : 
      42             : vlib_node_registration_t vxlan_export_node;
      43             : extern vlib_node_registration_t export_node;
      44             : extern ioam_export_main_t vxlan_gpe_ioam_export_main;
      45             : 
      46             : #define foreach_export_error \
      47             : _(RECORDED, "Packets recorded for export")
      48             : 
      49             : typedef enum
      50             : {
      51             : #define _(sym,str) EXPORT_ERROR_##sym,
      52             :   foreach_export_error
      53             : #undef _
      54             :     EXPORT_N_ERROR,
      55             : } export_error_t;
      56             : 
      57             : static char *export_error_strings[] = {
      58             : #define _(sym,string) string,
      59             :   foreach_export_error
      60             : #undef _
      61             : };
      62             : 
      63             : typedef enum
      64             : {
      65             :   EXPORT_NEXT_VXLAN_GPE_INPUT,
      66             :   EXPORT_N_NEXT,
      67             : } export_next_t;
      68             : 
      69             : always_inline void
      70           0 : copy3cachelines (void *dst, const void *src, size_t n)
      71             : {
      72             : #if 0
      73             :   if (PREDICT_FALSE (n < DEFAULT_EXPORT_SIZE))
      74             :     {
      75             :       /* Copy only the first 1/2 cache lines whatever is available */
      76             :       if (n >= 64)
      77             :         clib_mov64 ((u8 *) dst, (const u8 *) src);
      78             :       if (n >= 128)
      79             :         clib_mov64 ((u8 *) dst + 64, (const u8 *) src + 64);
      80             :       return;
      81             :     }
      82             :   clib_mov64 ((u8 *) dst, (const u8 *) src);
      83             :   clib_mov64 ((u8 *) dst + 64, (const u8 *) src + 64);
      84             :   clib_mov64 ((u8 *) dst + 128, (const u8 *) src + 128);
      85             : #endif
      86             : #if 1
      87             : 
      88             :   u64 *copy_dst, *copy_src;
      89             :   int i;
      90           0 :   copy_dst = (u64 *) dst;
      91           0 :   copy_src = (u64 *) src;
      92           0 :   if (PREDICT_FALSE (n < DEFAULT_EXPORT_SIZE))
      93             :     {
      94           0 :       for (i = 0; i < n / 64; i++)
      95             :         {
      96           0 :           copy_dst[0] = copy_src[0];
      97           0 :           copy_dst[1] = copy_src[1];
      98           0 :           copy_dst[2] = copy_src[2];
      99           0 :           copy_dst[3] = copy_src[3];
     100           0 :           copy_dst[4] = copy_src[4];
     101           0 :           copy_dst[5] = copy_src[5];
     102           0 :           copy_dst[6] = copy_src[6];
     103           0 :           copy_dst[7] = copy_src[7];
     104           0 :           copy_dst += 8;
     105           0 :           copy_src += 8;
     106             :         }
     107           0 :       return;
     108             :     }
     109           0 :   for (i = 0; i < 3; i++)
     110             :     {
     111           0 :       copy_dst[0] = copy_src[0];
     112           0 :       copy_dst[1] = copy_src[1];
     113           0 :       copy_dst[2] = copy_src[2];
     114           0 :       copy_dst[3] = copy_src[3];
     115           0 :       copy_dst[4] = copy_src[4];
     116           0 :       copy_dst[5] = copy_src[5];
     117           0 :       copy_dst[6] = copy_src[6];
     118           0 :       copy_dst[7] = copy_src[7];
     119           0 :       copy_dst += 8;
     120           0 :       copy_src += 8;
     121             :     }
     122             : #endif
     123             : }
     124             : 
     125             : static void
     126           0 : vxlan_gpe_export_fixup_func (vlib_buffer_t * export_buf,
     127             :                              vlib_buffer_t * pak_buf)
     128             : {
     129             :   /* Todo: on implementing VXLAN GPE analyse */
     130           0 : }
     131             : 
     132             : static uword
     133           0 : vxlan_gpe_export_node_fn (vlib_main_t * vm,
     134             :                           vlib_node_runtime_t * node, vlib_frame_t * frame)
     135             : {
     136           0 :   ioam_export_main_t *em = &vxlan_gpe_ioam_export_main;
     137           0 :   ioam_export_node_common (em, vm, node, frame, ip4_header_t, length,
     138             :                            ip_version_and_header_length,
     139             :                            EXPORT_NEXT_VXLAN_GPE_INPUT,
     140             :                            vxlan_gpe_export_fixup_func);
     141           0 :   return frame->n_vectors;
     142             : }
     143             : 
     144             : /*
     145             :  * Node for VXLAN-GPE export
     146             :  */
     147             : /* *INDENT-OFF* */
     148      114668 : VLIB_REGISTER_NODE (vxlan_export_node) =
     149             : {
     150             :   .function = vxlan_gpe_export_node_fn,
     151             :   .name = "vxlan-gpe-ioam-export",
     152             :   .vector_size = sizeof (u32),
     153             :   .format_trace = format_export_trace,
     154             :   .type = VLIB_NODE_TYPE_INTERNAL,
     155             :   .n_errors = ARRAY_LEN (export_error_strings),
     156             :   .error_strings = export_error_strings,
     157             :   .n_next_nodes = EXPORT_N_NEXT,
     158             :     /* edit / add dispositions here */
     159             :     .next_nodes =
     160             :   {[EXPORT_NEXT_VXLAN_GPE_INPUT] = "vxlan-gpe-pop-ioam-v4"},
     161             : };
     162             : /* *INDENT-ON* */
     163             : 
     164             : /*
     165             :  * fd.io coding-style-patch-verification: ON
     166             :  *
     167             :  * Local Variables:
     168             :  * eval: (c-set-style "gnu")
     169             :  * End:
     170             :  */

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