diff options
author | 2018-08-27 20:27:43 +0800 | |
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committer | 2018-08-28 06:04:57 +0000 | |
commit | d313f9e6f7c6d50aac189668a67bf13b86dd791c (patch) | |
tree | 0f92babad6891604e79f521de136b0a2bb946fbc /src/plugins/nsh/nsh-md2-ioam/export-nsh-md2-ioam/nsh_md2_ioam_node.c | |
parent | a5679e86af3d06df46edbf2654d48103e05c4b48 (diff) |
Port NSH plugin to VPP
Please refer to https://wiki.fd.io/view/NSH_SFC
Change-Id: Iba7e33e4dbb064c1527aaddbe8dce4b6b63a627a
Signed-off-by: Hongjun Ni <hongjun.ni@intel.com>
Signed-off-by: Keith Burns (alagalah) <alagalah@gmail.com>
Diffstat (limited to 'src/plugins/nsh/nsh-md2-ioam/export-nsh-md2-ioam/nsh_md2_ioam_node.c')
-rw-r--r-- | src/plugins/nsh/nsh-md2-ioam/export-nsh-md2-ioam/nsh_md2_ioam_node.c | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/src/plugins/nsh/nsh-md2-ioam/export-nsh-md2-ioam/nsh_md2_ioam_node.c b/src/plugins/nsh/nsh-md2-ioam/export-nsh-md2-ioam/nsh_md2_ioam_node.c new file mode 100644 index 00000000000..f2910c3d9fb --- /dev/null +++ b/src/plugins/nsh/nsh-md2-ioam/export-nsh-md2-ioam/nsh_md2_ioam_node.c @@ -0,0 +1,155 @@ +/* + * Copyright (c) 2017 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vnet/pg/pg.h> +#include <vppinfra/error.h> +#include <vnet/ip/ip.h> +#include <nsh/nsh.h> +#include <nsh/nsh_packet.h> +#include <ioam/export-common/ioam_export.h> + +typedef struct +{ + u32 next_index; + u32 flow_label; +} export_trace_t; + +extern ioam_export_main_t nsh_md2_ioam_export_main; +vlib_node_registration_t export_node; +/* packet trace format function */ +static u8 * +format_export_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 *); + export_trace_t *t = va_arg (*args, export_trace_t *); + + s = format (s, "EXPORT: flow_label %d, next index %d", + t->flow_label, t->next_index); + return s; +} + +vlib_node_registration_t nsh_md2_ioam_export_node; + +#define foreach_export_error \ +_(RECORDED, "Packets recorded for export") + +typedef enum +{ +#define _(sym,str) EXPORT_ERROR_##sym, + foreach_export_error +#undef _ + EXPORT_N_ERROR, +} export_error_t; + +static char *export_error_strings[] = { +#define _(sym,string) string, + foreach_export_error +#undef _ +}; + +typedef enum +{ + EXPORT_NEXT_NSH_MD2_IOAM_INPUT, + EXPORT_N_NEXT, +} export_next_t; + +always_inline void +copy3cachelines (void *dst, const void *src, size_t n) +{ + + u64 *copy_dst, *copy_src; + int i; + copy_dst = (u64 *) dst; + copy_src = (u64 *) src; + if (PREDICT_FALSE (n < DEFAULT_EXPORT_SIZE)) + { + for (i = 0; i < n / 64; i++) + { + copy_dst[0] = copy_src[0]; + copy_dst[1] = copy_src[1]; + copy_dst[2] = copy_src[2]; + copy_dst[3] = copy_src[3]; + copy_dst[4] = copy_src[4]; + copy_dst[5] = copy_src[5]; + copy_dst[6] = copy_src[6]; + copy_dst[7] = copy_src[7]; + copy_dst += 8; + copy_src += 8; + } + return; + } + for (i = 0; i < 3; i++) + { + copy_dst[0] = copy_src[0]; + copy_dst[1] = copy_src[1]; + copy_dst[2] = copy_src[2]; + copy_dst[3] = copy_src[3]; + copy_dst[4] = copy_src[4]; + copy_dst[5] = copy_src[5]; + copy_dst[6] = copy_src[6]; + copy_dst[7] = copy_src[7]; + copy_dst += 8; + copy_src += 8; + } +} + +static void +nsh_md2_ioam_export_fixup_func (vlib_buffer_t * export_buf, + vlib_buffer_t * pak_buf) +{ + /* Todo: on implementing analyse */ +} + +static uword +nsh_md2_ioam_export_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, vlib_frame_t * frame) +{ + ioam_export_main_t *em = &nsh_md2_ioam_export_main; + ioam_export_node_common (em, vm, node, frame, ip4_header_t, length, + ip_version_and_header_length, + EXPORT_NEXT_NSH_MD2_IOAM_INPUT, + nsh_md2_ioam_export_fixup_func); + return frame->n_vectors; +} + +/* + * Node for iOAM export + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (nsh_md2_ioam_export_node) = +{ + .function = nsh_md2_ioam_export_node_fn, + .name = "nsh-md2-ioam-export", + .vector_size = sizeof (u32), + .format_trace = format_export_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (export_error_strings), + .error_strings = export_error_strings, + .n_next_nodes = EXPORT_N_NEXT, + /* edit / add dispositions here */ + .next_nodes = + {[EXPORT_NEXT_NSH_MD2_IOAM_INPUT] = "nsh-pop"}, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |