blob: 5e4fe1b796a190b81bdb78f592bef53d6d04b122 [file] [log] [blame]
Ed Warnickecb9cada2015-12-08 15:45:58 -07001/*
2 * Copyright (c) 2015 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/*
16 * ethernet_node.c: ethernet packet processing
17 *
18 * Copyright (c) 2008 Eliot Dresselhaus
19 *
20 * Permission is hereby granted, free of charge, to any person obtaining
21 * a copy of this software and associated documentation files (the
22 * "Software"), to deal in the Software without restriction, including
23 * without limitation the rights to use, copy, modify, merge, publish,
24 * distribute, sublicense, and/or sell copies of the Software, and to
25 * permit persons to whom the Software is furnished to do so, subject to
26 * the following conditions:
27 *
28 * The above copyright notice and this permission notice shall be
29 * included in all copies or substantial portions of the Software.
30 *
31 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
32 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
33 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
34 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
35 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
36 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
37 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
38 */
39
40#include <vlib/vlib.h>
41#include <vnet/pg/pg.h>
42#include <vnet/ethernet/ethernet.h>
Pavel Kotucek15ac81c2017-06-20 14:00:26 +020043#include <vnet/ethernet/p2p_ethernet.h>
Neale Ranns17ff3c12018-07-04 10:24:24 -070044#include <vnet/devices/pipe/pipe.h>
Ed Warnickecb9cada2015-12-08 15:45:58 -070045#include <vppinfra/sparse_vec.h>
46#include <vnet/l2/l2_bvi.h>
47
48
49#define foreach_ethernet_input_next \
50 _ (PUNT, "error-punt") \
51 _ (DROP, "error-drop") \
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -070052 _ (LLC, "llc-input")
Ed Warnickecb9cada2015-12-08 15:45:58 -070053
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -070054typedef enum
55{
Ed Warnickecb9cada2015-12-08 15:45:58 -070056#define _(s,n) ETHERNET_INPUT_NEXT_##s,
57 foreach_ethernet_input_next
58#undef _
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -070059 ETHERNET_INPUT_N_NEXT,
Ed Warnickecb9cada2015-12-08 15:45:58 -070060} ethernet_input_next_t;
61
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -070062typedef struct
63{
Ed Warnickecb9cada2015-12-08 15:45:58 -070064 u8 packet_data[32];
65} ethernet_input_trace_t;
66
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -070067static u8 *
68format_ethernet_input_trace (u8 * s, va_list * va)
Ed Warnickecb9cada2015-12-08 15:45:58 -070069{
70 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*va, vlib_main_t *);
71 CLIB_UNUSED (vlib_node_t * node) = va_arg (*va, vlib_node_t *);
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -070072 ethernet_input_trace_t *t = va_arg (*va, ethernet_input_trace_t *);
Ed Warnickecb9cada2015-12-08 15:45:58 -070073
74 s = format (s, "%U", format_ethernet_header, t->packet_data);
75
76 return s;
77}
78
79vlib_node_registration_t ethernet_input_node;
80
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -070081typedef enum
82{
Ed Warnickecb9cada2015-12-08 15:45:58 -070083 ETHERNET_INPUT_VARIANT_ETHERNET,
84 ETHERNET_INPUT_VARIANT_ETHERNET_TYPE,
Ed Warnickecb9cada2015-12-08 15:45:58 -070085 ETHERNET_INPUT_VARIANT_NOT_L2,
86} ethernet_input_variant_t;
87
88
Ed Warnickecb9cada2015-12-08 15:45:58 -070089// Parse the ethernet header to extract vlan tags and innermost ethertype
90static_always_inline void
91parse_header (ethernet_input_variant_t variant,
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -070092 vlib_buffer_t * b0,
93 u16 * type,
94 u16 * orig_type,
95 u16 * outer_id, u16 * inner_id, u32 * match_flags)
96{
Chris Luke194ebc52016-04-25 14:26:55 -040097 u8 vlan_count;
Ed Warnickecb9cada2015-12-08 15:45:58 -070098
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -070099 if (variant == ETHERNET_INPUT_VARIANT_ETHERNET
100 || variant == ETHERNET_INPUT_VARIANT_NOT_L2)
101 {
102 ethernet_header_t *e0;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700103
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700104 e0 = (void *) (b0->data + b0->current_data);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700105
Damjan Marion072401e2017-07-13 18:53:27 +0200106 vnet_buffer (b0)->l2_hdr_offset = b0->current_data;
Steven35de3b32017-12-03 23:40:54 -0800107 b0->flags |= VNET_BUFFER_F_L2_HDR_OFFSET_VALID;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700108
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700109 vlib_buffer_advance (b0, sizeof (e0[0]));
Ed Warnickecb9cada2015-12-08 15:45:58 -0700110
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700111 *type = clib_net_to_host_u16 (e0->type);
112 }
113 else if (variant == ETHERNET_INPUT_VARIANT_ETHERNET_TYPE)
114 {
115 // here when prior node was LLC/SNAP processing
116 u16 *e0;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700117
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700118 e0 = (void *) (b0->data + b0->current_data);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700119
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700120 vlib_buffer_advance (b0, sizeof (e0[0]));
Ed Warnickecb9cada2015-12-08 15:45:58 -0700121
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700122 *type = clib_net_to_host_u16 (e0[0]);
123 }
Ed Warnickecb9cada2015-12-08 15:45:58 -0700124
125 // save for distinguishing between dot1q and dot1ad later
126 *orig_type = *type;
127
128 // default the tags to 0 (used if there is no corresponding tag)
129 *outer_id = 0;
130 *inner_id = 0;
131
132 *match_flags = SUBINT_CONFIG_VALID | SUBINT_CONFIG_MATCH_0_TAG;
Chris Luke194ebc52016-04-25 14:26:55 -0400133 vlan_count = 0;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700134
135 // check for vlan encaps
Damjan Marionb94bdad2016-09-19 11:32:03 +0200136 if (ethernet_frame_is_tagged (*type))
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700137 {
138 ethernet_vlan_header_t *h0;
139 u16 tag;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700140
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700141 *match_flags = SUBINT_CONFIG_VALID | SUBINT_CONFIG_MATCH_1_TAG;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700142
143 h0 = (void *) (b0->data + b0->current_data);
144
145 tag = clib_net_to_host_u16 (h0->priority_cfi_and_id);
146
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700147 *outer_id = tag & 0xfff;
Neale Ranns30d0fd42017-05-30 07:30:04 -0700148 if (0 == *outer_id)
149 *match_flags &= ~SUBINT_CONFIG_MATCH_1_TAG;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700150
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700151 *type = clib_net_to_host_u16 (h0->type);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700152
153 vlib_buffer_advance (b0, sizeof (h0[0]));
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700154 vlan_count = 1;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700155
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700156 if (*type == ETHERNET_TYPE_VLAN)
157 {
158 // Double tagged packet
159 *match_flags = SUBINT_CONFIG_VALID | SUBINT_CONFIG_MATCH_2_TAG;
160
161 h0 = (void *) (b0->data + b0->current_data);
162
163 tag = clib_net_to_host_u16 (h0->priority_cfi_and_id);
164
165 *inner_id = tag & 0xfff;
166
167 *type = clib_net_to_host_u16 (h0->type);
168
169 vlib_buffer_advance (b0, sizeof (h0[0]));
170 vlan_count = 2;
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700171 if (*type == ETHERNET_TYPE_VLAN)
172 {
173 // More than double tagged packet
174 *match_flags = SUBINT_CONFIG_VALID | SUBINT_CONFIG_MATCH_3_TAG;
Eyal Bari6f7ebf92017-06-13 12:09:37 +0300175
176 vlib_buffer_advance (b0, sizeof (h0[0]));
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700177 vlan_count = 3; // "unknown" number, aka, 3-or-more
178 }
179 }
Ed Warnickecb9cada2015-12-08 15:45:58 -0700180 }
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700181 ethernet_buffer_set_vlan_count (b0, vlan_count);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700182}
183
184// Determine the subinterface for this packet, given the result of the
185// vlan table lookups and vlan header parsing. Check the most specific
186// matches first.
187static_always_inline void
188identify_subint (vnet_hw_interface_t * hi,
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700189 vlib_buffer_t * b0,
190 u32 match_flags,
191 main_intf_t * main_intf,
192 vlan_intf_t * vlan_intf,
193 qinq_intf_t * qinq_intf,
194 u32 * new_sw_if_index, u8 * error0, u32 * is_l2)
Ed Warnickecb9cada2015-12-08 15:45:58 -0700195{
196 u32 matched;
197
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700198 matched = eth_identify_subint (hi, b0, match_flags,
199 main_intf, vlan_intf, qinq_intf,
200 new_sw_if_index, error0, is_l2);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700201
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700202 if (matched)
203 {
Ed Warnickecb9cada2015-12-08 15:45:58 -0700204
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700205 // Perform L3 my-mac filter
206 // A unicast packet arriving on an L3 interface must have a dmac matching the interface mac.
207 // This is required for promiscuous mode, else we will forward packets we aren't supposed to.
208 if (!(*is_l2))
209 {
210 ethernet_header_t *e0;
Damjan Marion072401e2017-07-13 18:53:27 +0200211 e0 = (void *) (b0->data + vnet_buffer (b0)->l2_hdr_offset);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700212
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700213 if (!(ethernet_address_cast (e0->dst_address)))
214 {
215 if (!eth_mac_equal ((u8 *) e0, hi->hw_address))
216 {
217 *error0 = ETHERNET_ERROR_L3_MAC_MISMATCH;
218 }
219 }
220 }
221
222 // Check for down subinterface
223 *error0 = (*new_sw_if_index) != ~0 ? (*error0) : ETHERNET_ERROR_DOWN;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700224 }
Ed Warnickecb9cada2015-12-08 15:45:58 -0700225}
226
227static_always_inline void
228determine_next_node (ethernet_main_t * em,
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700229 ethernet_input_variant_t variant,
230 u32 is_l20,
231 u32 type0, vlib_buffer_t * b0, u8 * error0, u8 * next0)
Ed Warnickecb9cada2015-12-08 15:45:58 -0700232{
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700233 if (PREDICT_FALSE (*error0 != ETHERNET_ERROR_NONE))
234 {
235 // some error occurred
236 *next0 = ETHERNET_INPUT_NEXT_DROP;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700237 }
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700238 else if (is_l20)
239 {
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700240 // record the L2 len and reset the buffer so the L2 header is preserved
John Lob14826e2018-04-18 15:52:23 -0400241 u32 eth_start = vnet_buffer (b0)->l2_hdr_offset;
242 vnet_buffer (b0)->l2.l2_len = b0->current_data - eth_start;
243 *next0 = em->l2_next;
Eyal Bari6f7ebf92017-06-13 12:09:37 +0300244 ASSERT (vnet_buffer (b0)->l2.l2_len ==
245 ethernet_buffer_header_size (b0));
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700246 vlib_buffer_advance (b0, -ethernet_buffer_header_size (b0));
247
248 // check for common IP/MPLS ethertypes
249 }
250 else if (type0 == ETHERNET_TYPE_IP4)
251 {
252 *next0 = em->l3_next.input_next_ip4;
253 }
254 else if (type0 == ETHERNET_TYPE_IP6)
255 {
256 *next0 = em->l3_next.input_next_ip6;
257 }
Neale Ranns0f26c5a2017-03-01 15:12:11 -0800258 else if (type0 == ETHERNET_TYPE_MPLS)
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700259 {
260 *next0 = em->l3_next.input_next_mpls;
261
262 }
263 else if (em->redirect_l3)
264 {
265 // L3 Redirect is on, the cached common next nodes will be
266 // pointing to the redirect node, catch the uncommon types here
267 *next0 = em->redirect_l3_next;
268 }
269 else
270 {
271 // uncommon ethertype, check table
272 u32 i0;
273 i0 = sparse_vec_index (em->l3_next.input_next_by_type, type0);
274 *next0 = vec_elt (em->l3_next.input_next_by_type, i0);
275 *error0 =
276 i0 ==
277 SPARSE_VEC_INVALID_INDEX ? ETHERNET_ERROR_UNKNOWN_TYPE : *error0;
278
279 // The table is not populated with LLC values, so check that now.
Damjan Marion607de1a2016-08-16 22:53:54 +0200280 // If variant is variant_ethernet then we came from LLC processing. Don't
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700281 // go back there; drop instead using by keeping the drop/bad table result.
282 if ((type0 < 0x600) && (variant == ETHERNET_INPUT_VARIANT_ETHERNET))
283 {
284 *next0 = ETHERNET_INPUT_NEXT_LLC;
285 }
286 }
Ed Warnickecb9cada2015-12-08 15:45:58 -0700287}
288
289static_always_inline uword
290ethernet_input_inline (vlib_main_t * vm,
291 vlib_node_runtime_t * node,
292 vlib_frame_t * from_frame,
293 ethernet_input_variant_t variant)
294{
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700295 vnet_main_t *vnm = vnet_get_main ();
296 ethernet_main_t *em = &ethernet_main;
297 vlib_node_runtime_t *error_node;
298 u32 n_left_from, next_index, *from, *to_next;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700299 u32 stats_sw_if_index, stats_n_packets, stats_n_bytes;
Damjan Marion067cd622018-07-11 12:47:43 +0200300 u32 thread_index = vm->thread_index;
Dave Barachcfba1e22016-11-16 10:23:50 -0500301 u32 cached_sw_if_index = ~0;
302 u32 cached_is_l2 = 0; /* shut up gcc */
John Lo1904c472017-03-10 17:15:22 -0500303 vnet_hw_interface_t *hi = NULL; /* used for main interface only */
Ed Warnickecb9cada2015-12-08 15:45:58 -0700304
305 if (variant != ETHERNET_INPUT_VARIANT_ETHERNET)
306 error_node = vlib_node_get_runtime (vm, ethernet_input_node.index);
307 else
308 error_node = node;
309
310 from = vlib_frame_vector_args (from_frame);
311 n_left_from = from_frame->n_vectors;
312
313 if (node->flags & VLIB_NODE_FLAG_TRACE)
314 vlib_trace_frame_buffers_only (vm, node,
315 from,
316 n_left_from,
317 sizeof (from[0]),
318 sizeof (ethernet_input_trace_t));
319
320 next_index = node->cached_next_index;
321 stats_sw_if_index = node->runtime_data[0];
322 stats_n_packets = stats_n_bytes = 0;
323
324 while (n_left_from > 0)
325 {
326 u32 n_left_to_next;
327
328 vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
329
330 while (n_left_from >= 4 && n_left_to_next >= 2)
331 {
332 u32 bi0, bi1;
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700333 vlib_buffer_t *b0, *b1;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700334 u8 next0, next1, error0, error1;
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700335 u16 type0, orig_type0, type1, orig_type1;
336 u16 outer_id0, inner_id0, outer_id1, inner_id1;
337 u32 match_flags0, match_flags1;
338 u32 old_sw_if_index0, new_sw_if_index0, len0, old_sw_if_index1,
339 new_sw_if_index1, len1;
340 vnet_hw_interface_t *hi0, *hi1;
341 main_intf_t *main_intf0, *main_intf1;
342 vlan_intf_t *vlan_intf0, *vlan_intf1;
343 qinq_intf_t *qinq_intf0, *qinq_intf1;
344 u32 is_l20, is_l21;
Dave Barachcfba1e22016-11-16 10:23:50 -0500345 ethernet_header_t *e0, *e1;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700346
347 /* Prefetch next iteration. */
348 {
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700349 vlib_buffer_t *b2, *b3;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700350
351 b2 = vlib_get_buffer (vm, from[2]);
352 b3 = vlib_get_buffer (vm, from[3]);
353
354 vlib_prefetch_buffer_header (b2, STORE);
355 vlib_prefetch_buffer_header (b3, STORE);
356
357 CLIB_PREFETCH (b2->data, sizeof (ethernet_header_t), LOAD);
358 CLIB_PREFETCH (b3->data, sizeof (ethernet_header_t), LOAD);
359 }
360
361 bi0 = from[0];
362 bi1 = from[1];
363 to_next[0] = bi0;
364 to_next[1] = bi1;
365 from += 2;
366 to_next += 2;
367 n_left_to_next -= 2;
368 n_left_from -= 2;
369
370 b0 = vlib_get_buffer (vm, bi0);
371 b1 = vlib_get_buffer (vm, bi1);
372
373 error0 = error1 = ETHERNET_ERROR_NONE;
Dave Barachcfba1e22016-11-16 10:23:50 -0500374 e0 = vlib_buffer_get_current (b0);
375 type0 = clib_net_to_host_u16 (e0->type);
376 e1 = vlib_buffer_get_current (b1);
377 type1 = clib_net_to_host_u16 (e1->type);
378
John Locc532852016-12-14 15:42:45 -0500379 /* Speed-path for the untagged case */
Dave Barachcfba1e22016-11-16 10:23:50 -0500380 if (PREDICT_TRUE (variant == ETHERNET_INPUT_VARIANT_ETHERNET
Damjan Marionc6969b52018-02-19 12:14:06 +0100381 && !ethernet_frame_is_any_tagged_x2 (type0,
382 type1)))
Dave Barachcfba1e22016-11-16 10:23:50 -0500383 {
384 main_intf_t *intf0;
385 subint_config_t *subint0;
386 u32 sw_if_index0, sw_if_index1;
387
388 sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
389 sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_RX];
390 is_l20 = cached_is_l2;
391
392 /* This is probably wholly unnecessary */
393 if (PREDICT_FALSE (sw_if_index0 != sw_if_index1))
394 goto slowpath;
395
John Lo1904c472017-03-10 17:15:22 -0500396 /* Now sw_if_index0 == sw_if_index1 */
Dave Barachcfba1e22016-11-16 10:23:50 -0500397 if (PREDICT_FALSE (cached_sw_if_index != sw_if_index0))
398 {
399 cached_sw_if_index = sw_if_index0;
John Lo1904c472017-03-10 17:15:22 -0500400 hi = vnet_get_sup_hw_interface (vnm, sw_if_index0);
401 intf0 = vec_elt_at_index (em->main_intfs, hi->hw_if_index);
Dave Barachcfba1e22016-11-16 10:23:50 -0500402 subint0 = &intf0->untagged_subint;
403 cached_is_l2 = is_l20 = subint0->flags & SUBINT_CONFIG_L2;
404 }
John Lo7714b302016-12-20 16:59:02 -0500405
Damjan Marion072401e2017-07-13 18:53:27 +0200406 vnet_buffer (b0)->l2_hdr_offset = b0->current_data;
407 vnet_buffer (b1)->l2_hdr_offset = b1->current_data;
Steven35de3b32017-12-03 23:40:54 -0800408 vnet_buffer (b0)->l3_hdr_offset =
409 vnet_buffer (b0)->l2_hdr_offset + sizeof (ethernet_header_t);
410 vnet_buffer (b1)->l3_hdr_offset =
411 vnet_buffer (b1)->l2_hdr_offset + sizeof (ethernet_header_t);
412 b0->flags |= VNET_BUFFER_F_L2_HDR_OFFSET_VALID |
413 VNET_BUFFER_F_L3_HDR_OFFSET_VALID;
414 b1->flags |= VNET_BUFFER_F_L2_HDR_OFFSET_VALID |
415 VNET_BUFFER_F_L3_HDR_OFFSET_VALID;
John Lo7714b302016-12-20 16:59:02 -0500416
Dave Barachcfba1e22016-11-16 10:23:50 -0500417 if (PREDICT_TRUE (is_l20 != 0))
418 {
419 next0 = em->l2_next;
420 vnet_buffer (b0)->l2.l2_len = sizeof (ethernet_header_t);
Dave Barachcfba1e22016-11-16 10:23:50 -0500421 next1 = em->l2_next;
422 vnet_buffer (b1)->l2.l2_len = sizeof (ethernet_header_t);
Dave Barachcfba1e22016-11-16 10:23:50 -0500423 }
John Locc532852016-12-14 15:42:45 -0500424 else
425 {
John Lo1904c472017-03-10 17:15:22 -0500426 if (!ethernet_address_cast (e0->dst_address) &&
Hongjun Ni9e3e3612017-04-26 18:40:55 +0800427 (hi->hw_address != 0) &&
John Lo1904c472017-03-10 17:15:22 -0500428 !eth_mac_equal ((u8 *) e0, hi->hw_address))
429 error0 = ETHERNET_ERROR_L3_MAC_MISMATCH;
430 if (!ethernet_address_cast (e1->dst_address) &&
Hongjun Ni9e3e3612017-04-26 18:40:55 +0800431 (hi->hw_address != 0) &&
John Lo1904c472017-03-10 17:15:22 -0500432 !eth_mac_equal ((u8 *) e1, hi->hw_address))
433 error1 = ETHERNET_ERROR_L3_MAC_MISMATCH;
John Lob14826e2018-04-18 15:52:23 -0400434 vlib_buffer_advance (b0, sizeof (ethernet_header_t));
John Locc532852016-12-14 15:42:45 -0500435 determine_next_node (em, variant, 0, type0, b0,
436 &error0, &next0);
John Lob14826e2018-04-18 15:52:23 -0400437 vlib_buffer_advance (b1, sizeof (ethernet_header_t));
John Locc532852016-12-14 15:42:45 -0500438 determine_next_node (em, variant, 0, type1, b1,
439 &error1, &next1);
John Locc532852016-12-14 15:42:45 -0500440 }
441 goto ship_it01;
Dave Barachcfba1e22016-11-16 10:23:50 -0500442 }
Ed Warnickecb9cada2015-12-08 15:45:58 -0700443
John Locc532852016-12-14 15:42:45 -0500444 /* Slow-path for the tagged case */
445 slowpath:
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700446 parse_header (variant,
447 b0,
448 &type0,
449 &orig_type0, &outer_id0, &inner_id0, &match_flags0);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700450
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700451 parse_header (variant,
452 b1,
453 &type1,
454 &orig_type1, &outer_id1, &inner_id1, &match_flags1);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700455
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700456 old_sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
457 old_sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_RX];
Ed Warnickecb9cada2015-12-08 15:45:58 -0700458
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700459 eth_vlan_table_lookups (em,
460 vnm,
461 old_sw_if_index0,
462 orig_type0,
463 outer_id0,
464 inner_id0,
465 &hi0,
466 &main_intf0, &vlan_intf0, &qinq_intf0);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700467
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700468 eth_vlan_table_lookups (em,
469 vnm,
470 old_sw_if_index1,
471 orig_type1,
472 outer_id1,
473 inner_id1,
474 &hi1,
475 &main_intf1, &vlan_intf1, &qinq_intf1);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700476
477 identify_subint (hi0,
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700478 b0,
479 match_flags0,
480 main_intf0,
481 vlan_intf0,
482 qinq_intf0, &new_sw_if_index0, &error0, &is_l20);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700483
484 identify_subint (hi1,
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700485 b1,
486 match_flags1,
487 main_intf1,
488 vlan_intf1,
489 qinq_intf1, &new_sw_if_index1, &error1, &is_l21);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700490
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700491 // Save RX sw_if_index for later nodes
492 vnet_buffer (b0)->sw_if_index[VLIB_RX] =
493 error0 !=
494 ETHERNET_ERROR_NONE ? old_sw_if_index0 : new_sw_if_index0;
495 vnet_buffer (b1)->sw_if_index[VLIB_RX] =
496 error1 !=
497 ETHERNET_ERROR_NONE ? old_sw_if_index1 : new_sw_if_index1;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700498
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700499 // Check if there is a stat to take (valid and non-main sw_if_index for pkt 0 or pkt 1)
500 if (((new_sw_if_index0 != ~0)
501 && (new_sw_if_index0 != old_sw_if_index0))
502 || ((new_sw_if_index1 != ~0)
503 && (new_sw_if_index1 != old_sw_if_index1)))
504 {
Ed Warnickecb9cada2015-12-08 15:45:58 -0700505
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700506 len0 = vlib_buffer_length_in_chain (vm, b0) + b0->current_data
Damjan Marion072401e2017-07-13 18:53:27 +0200507 - vnet_buffer (b0)->l2_hdr_offset;
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700508 len1 = vlib_buffer_length_in_chain (vm, b1) + b1->current_data
Damjan Marion072401e2017-07-13 18:53:27 +0200509 - vnet_buffer (b1)->l2_hdr_offset;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700510
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700511 stats_n_packets += 2;
512 stats_n_bytes += len0 + len1;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700513
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700514 if (PREDICT_FALSE
515 (!(new_sw_if_index0 == stats_sw_if_index
516 && new_sw_if_index1 == stats_sw_if_index)))
Ed Warnickecb9cada2015-12-08 15:45:58 -0700517 {
518 stats_n_packets -= 2;
519 stats_n_bytes -= len0 + len1;
520
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700521 if (new_sw_if_index0 != old_sw_if_index0
522 && new_sw_if_index0 != ~0)
523 vlib_increment_combined_counter (vnm->
524 interface_main.combined_sw_if_counters
525 +
526 VNET_INTERFACE_COUNTER_RX,
Damjan Marion586afd72017-04-05 19:18:20 +0200527 thread_index,
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700528 new_sw_if_index0, 1,
529 len0);
530 if (new_sw_if_index1 != old_sw_if_index1
531 && new_sw_if_index1 != ~0)
532 vlib_increment_combined_counter (vnm->
533 interface_main.combined_sw_if_counters
534 +
535 VNET_INTERFACE_COUNTER_RX,
Damjan Marion586afd72017-04-05 19:18:20 +0200536 thread_index,
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700537 new_sw_if_index1, 1,
538 len1);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700539
540 if (new_sw_if_index0 == new_sw_if_index1)
541 {
542 if (stats_n_packets > 0)
543 {
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700544 vlib_increment_combined_counter
545 (vnm->interface_main.combined_sw_if_counters
546 + VNET_INTERFACE_COUNTER_RX,
Damjan Marion586afd72017-04-05 19:18:20 +0200547 thread_index,
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700548 stats_sw_if_index,
549 stats_n_packets, stats_n_bytes);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700550 stats_n_packets = stats_n_bytes = 0;
551 }
552 stats_sw_if_index = new_sw_if_index0;
553 }
554 }
555 }
556
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700557 if (variant == ETHERNET_INPUT_VARIANT_NOT_L2)
558 is_l20 = is_l21 = 0;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700559
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700560 determine_next_node (em, variant, is_l20, type0, b0, &error0,
561 &next0);
562 determine_next_node (em, variant, is_l21, type1, b1, &error1,
563 &next1);
Steven35de3b32017-12-03 23:40:54 -0800564 vnet_buffer (b0)->l3_hdr_offset = vnet_buffer (b0)->l2_hdr_offset +
565 vnet_buffer (b0)->l2.l2_len;
566 vnet_buffer (b1)->l3_hdr_offset = vnet_buffer (b1)->l2_hdr_offset +
567 vnet_buffer (b1)->l2.l2_len;
568 b0->flags |= VNET_BUFFER_F_L3_HDR_OFFSET_VALID;
569 b1->flags |= VNET_BUFFER_F_L3_HDR_OFFSET_VALID;
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700570
John Lo1904c472017-03-10 17:15:22 -0500571 ship_it01:
Ed Warnickecb9cada2015-12-08 15:45:58 -0700572 b0->error = error_node->errors[error0];
573 b1->error = error_node->errors[error1];
574
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700575 // verify speculative enqueue
576 vlib_validate_buffer_enqueue_x2 (vm, node, next_index, to_next,
577 n_left_to_next, bi0, bi1, next0,
578 next1);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700579 }
580
581 while (n_left_from > 0 && n_left_to_next > 0)
582 {
583 u32 bi0;
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700584 vlib_buffer_t *b0;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700585 u8 error0, next0;
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700586 u16 type0, orig_type0;
587 u16 outer_id0, inner_id0;
588 u32 match_flags0;
589 u32 old_sw_if_index0, new_sw_if_index0, len0;
590 vnet_hw_interface_t *hi0;
591 main_intf_t *main_intf0;
592 vlan_intf_t *vlan_intf0;
593 qinq_intf_t *qinq_intf0;
Dave Barachcfba1e22016-11-16 10:23:50 -0500594 ethernet_header_t *e0;
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700595 u32 is_l20;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700596
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700597 // Prefetch next iteration
598 if (n_left_from > 1)
599 {
600 vlib_buffer_t *p2;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700601
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700602 p2 = vlib_get_buffer (vm, from[1]);
603 vlib_prefetch_buffer_header (p2, STORE);
604 CLIB_PREFETCH (p2->data, CLIB_CACHE_LINE_BYTES, LOAD);
605 }
606
607 bi0 = from[0];
Ed Warnickecb9cada2015-12-08 15:45:58 -0700608 to_next[0] = bi0;
609 from += 1;
610 to_next += 1;
611 n_left_from -= 1;
612 n_left_to_next -= 1;
613
614 b0 = vlib_get_buffer (vm, bi0);
615
616 error0 = ETHERNET_ERROR_NONE;
Dave Barachcfba1e22016-11-16 10:23:50 -0500617 e0 = vlib_buffer_get_current (b0);
618 type0 = clib_net_to_host_u16 (e0->type);
619
John Locc532852016-12-14 15:42:45 -0500620 /* Speed-path for the untagged case */
Dave Barachcfba1e22016-11-16 10:23:50 -0500621 if (PREDICT_TRUE (variant == ETHERNET_INPUT_VARIANT_ETHERNET
622 && !ethernet_frame_is_tagged (type0)))
623 {
624 main_intf_t *intf0;
625 subint_config_t *subint0;
626 u32 sw_if_index0;
627
628 sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
629 is_l20 = cached_is_l2;
630
631 if (PREDICT_FALSE (cached_sw_if_index != sw_if_index0))
632 {
633 cached_sw_if_index = sw_if_index0;
John Lo1904c472017-03-10 17:15:22 -0500634 hi = vnet_get_sup_hw_interface (vnm, sw_if_index0);
635 intf0 = vec_elt_at_index (em->main_intfs, hi->hw_if_index);
Dave Barachcfba1e22016-11-16 10:23:50 -0500636 subint0 = &intf0->untagged_subint;
637 cached_is_l2 = is_l20 = subint0->flags & SUBINT_CONFIG_L2;
638 }
John Lo7714b302016-12-20 16:59:02 -0500639
Damjan Marion072401e2017-07-13 18:53:27 +0200640 vnet_buffer (b0)->l2_hdr_offset = b0->current_data;
Steven35de3b32017-12-03 23:40:54 -0800641 vnet_buffer (b0)->l3_hdr_offset =
642 vnet_buffer (b0)->l2_hdr_offset + sizeof (ethernet_header_t);
643 b0->flags |= VNET_BUFFER_F_L2_HDR_OFFSET_VALID |
644 VNET_BUFFER_F_L3_HDR_OFFSET_VALID;
John Lo7714b302016-12-20 16:59:02 -0500645
Dave Barachcfba1e22016-11-16 10:23:50 -0500646 if (PREDICT_TRUE (is_l20 != 0))
647 {
648 next0 = em->l2_next;
649 vnet_buffer (b0)->l2.l2_len = sizeof (ethernet_header_t);
Dave Barachcfba1e22016-11-16 10:23:50 -0500650 }
John Locc532852016-12-14 15:42:45 -0500651 else
652 {
John Lo1904c472017-03-10 17:15:22 -0500653 if (!ethernet_address_cast (e0->dst_address) &&
Hongjun Ni9e3e3612017-04-26 18:40:55 +0800654 (hi->hw_address != 0) &&
John Lo1904c472017-03-10 17:15:22 -0500655 !eth_mac_equal ((u8 *) e0, hi->hw_address))
656 error0 = ETHERNET_ERROR_L3_MAC_MISMATCH;
John Locc532852016-12-14 15:42:45 -0500657 determine_next_node (em, variant, 0, type0, b0,
658 &error0, &next0);
659 vlib_buffer_advance (b0, sizeof (ethernet_header_t));
660 }
661 goto ship_it0;
Dave Barachcfba1e22016-11-16 10:23:50 -0500662 }
Ed Warnickecb9cada2015-12-08 15:45:58 -0700663
John Locc532852016-12-14 15:42:45 -0500664 /* Slow-path for the tagged case */
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700665 parse_header (variant,
666 b0,
667 &type0,
668 &orig_type0, &outer_id0, &inner_id0, &match_flags0);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700669
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700670 old_sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
Ed Warnickecb9cada2015-12-08 15:45:58 -0700671
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700672 eth_vlan_table_lookups (em,
673 vnm,
674 old_sw_if_index0,
675 orig_type0,
676 outer_id0,
677 inner_id0,
678 &hi0,
679 &main_intf0, &vlan_intf0, &qinq_intf0);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700680
681 identify_subint (hi0,
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700682 b0,
683 match_flags0,
684 main_intf0,
685 vlan_intf0,
686 qinq_intf0, &new_sw_if_index0, &error0, &is_l20);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700687
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700688 // Save RX sw_if_index for later nodes
689 vnet_buffer (b0)->sw_if_index[VLIB_RX] =
690 error0 !=
691 ETHERNET_ERROR_NONE ? old_sw_if_index0 : new_sw_if_index0;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700692
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700693 // Increment subinterface stats
694 // Note that interface-level counters have already been incremented
695 // prior to calling this function. Thus only subinterface counters
696 // are incremented here.
697 //
Damjan Marion607de1a2016-08-16 22:53:54 +0200698 // Interface level counters include packets received on the main
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700699 // interface and all subinterfaces. Subinterface level counters
700 // include only those packets received on that subinterface
Ed Warnickecb9cada2015-12-08 15:45:58 -0700701 // Increment stats if the subint is valid and it is not the main intf
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700702 if ((new_sw_if_index0 != ~0)
703 && (new_sw_if_index0 != old_sw_if_index0))
704 {
Ed Warnickecb9cada2015-12-08 15:45:58 -0700705
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700706 len0 = vlib_buffer_length_in_chain (vm, b0) + b0->current_data
Damjan Marion072401e2017-07-13 18:53:27 +0200707 - vnet_buffer (b0)->l2_hdr_offset;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700708
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700709 stats_n_packets += 1;
710 stats_n_bytes += len0;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700711
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700712 // Batch stat increments from the same subinterface so counters
Damjan Marion607de1a2016-08-16 22:53:54 +0200713 // don't need to be incremented for every packet.
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700714 if (PREDICT_FALSE (new_sw_if_index0 != stats_sw_if_index))
715 {
716 stats_n_packets -= 1;
717 stats_n_bytes -= len0;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700718
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700719 if (new_sw_if_index0 != ~0)
720 vlib_increment_combined_counter
721 (vnm->interface_main.combined_sw_if_counters
722 + VNET_INTERFACE_COUNTER_RX,
Damjan Marion586afd72017-04-05 19:18:20 +0200723 thread_index, new_sw_if_index0, 1, len0);
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700724 if (stats_n_packets > 0)
725 {
726 vlib_increment_combined_counter
727 (vnm->interface_main.combined_sw_if_counters
728 + VNET_INTERFACE_COUNTER_RX,
Damjan Marion586afd72017-04-05 19:18:20 +0200729 thread_index,
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700730 stats_sw_if_index, stats_n_packets, stats_n_bytes);
731 stats_n_packets = stats_n_bytes = 0;
732 }
733 stats_sw_if_index = new_sw_if_index0;
734 }
Ed Warnickecb9cada2015-12-08 15:45:58 -0700735 }
Ed Warnickecb9cada2015-12-08 15:45:58 -0700736
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700737 if (variant == ETHERNET_INPUT_VARIANT_NOT_L2)
738 is_l20 = 0;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700739
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700740 determine_next_node (em, variant, is_l20, type0, b0, &error0,
741 &next0);
Steven35de3b32017-12-03 23:40:54 -0800742 vnet_buffer (b0)->l3_hdr_offset = vnet_buffer (b0)->l2_hdr_offset +
743 vnet_buffer (b0)->l2.l2_len;
744 b0->flags |= VNET_BUFFER_F_L3_HDR_OFFSET_VALID;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700745
John Lo1904c472017-03-10 17:15:22 -0500746 ship_it0:
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700747 b0->error = error_node->errors[error0];
748
749 // verify speculative enqueue
Ed Warnickecb9cada2015-12-08 15:45:58 -0700750 vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
751 to_next, n_left_to_next,
752 bi0, next0);
753 }
754
755 vlib_put_next_frame (vm, node, next_index, n_left_to_next);
756 }
757
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700758 // Increment any remaining batched stats
759 if (stats_n_packets > 0)
Ed Warnickecb9cada2015-12-08 15:45:58 -0700760 {
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700761 vlib_increment_combined_counter
762 (vnm->interface_main.combined_sw_if_counters
763 + VNET_INTERFACE_COUNTER_RX,
Damjan Marion586afd72017-04-05 19:18:20 +0200764 thread_index, stats_sw_if_index, stats_n_packets, stats_n_bytes);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700765 node->runtime_data[0] = stats_sw_if_index;
766 }
767
768 return from_frame->n_vectors;
769}
770
Damjan Marion5beecec2018-09-10 13:09:21 +0200771VLIB_NODE_FN (ethernet_input_node) (vlib_main_t * vm,
772 vlib_node_runtime_t * node,
773 vlib_frame_t * from_frame)
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700774{
775 return ethernet_input_inline (vm, node, from_frame,
776 ETHERNET_INPUT_VARIANT_ETHERNET);
777}
Ed Warnickecb9cada2015-12-08 15:45:58 -0700778
Damjan Marion5beecec2018-09-10 13:09:21 +0200779VLIB_NODE_FN (ethernet_input_type_node) (vlib_main_t * vm,
780 vlib_node_runtime_t * node,
781 vlib_frame_t * from_frame)
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700782{
783 return ethernet_input_inline (vm, node, from_frame,
784 ETHERNET_INPUT_VARIANT_ETHERNET_TYPE);
785}
Ed Warnickecb9cada2015-12-08 15:45:58 -0700786
Damjan Marion5beecec2018-09-10 13:09:21 +0200787VLIB_NODE_FN (ethernet_input_not_l2_node) (vlib_main_t * vm,
788 vlib_node_runtime_t * node,
789 vlib_frame_t * from_frame)
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700790{
791 return ethernet_input_inline (vm, node, from_frame,
792 ETHERNET_INPUT_VARIANT_NOT_L2);
793}
Ed Warnickecb9cada2015-12-08 15:45:58 -0700794
795
796// Return the subinterface config struct for the given sw_if_index
797// Also return via parameter the appropriate match flags for the
798// configured number of tags.
799// On error (unsupported or not ethernet) return 0.
800static subint_config_t *
801ethernet_sw_interface_get_config (vnet_main_t * vnm,
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700802 u32 sw_if_index,
803 u32 * flags, u32 * unsupported)
804{
805 ethernet_main_t *em = &ethernet_main;
806 vnet_hw_interface_t *hi;
807 vnet_sw_interface_t *si;
808 main_intf_t *main_intf;
809 vlan_table_t *vlan_table;
810 qinq_table_t *qinq_table;
811 subint_config_t *subint = 0;
812
Ed Warnickecb9cada2015-12-08 15:45:58 -0700813 hi = vnet_get_sup_hw_interface (vnm, sw_if_index);
814
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700815 if (!hi || (hi->hw_class_index != ethernet_hw_interface_class.index))
816 {
817 *unsupported = 0;
818 goto done; // non-ethernet interface
819 }
Ed Warnickecb9cada2015-12-08 15:45:58 -0700820
821 // ensure there's an entry for the main intf (shouldn't really be necessary)
822 vec_validate (em->main_intfs, hi->hw_if_index);
823 main_intf = vec_elt_at_index (em->main_intfs, hi->hw_if_index);
824
825 // Locate the subint for the given ethernet config
826 si = vnet_get_sw_interface (vnm, sw_if_index);
827
Pavel Kotucek15ac81c2017-06-20 14:00:26 +0200828 if (si->type == VNET_SW_INTERFACE_TYPE_P2P)
829 {
830 p2p_ethernet_main_t *p2pm = &p2p_main;
831 u32 p2pe_sw_if_index =
832 p2p_ethernet_lookup (hi->hw_if_index, si->p2p.client_mac);
833 if (p2pe_sw_if_index == ~0)
834 {
835 pool_get (p2pm->p2p_subif_pool, subint);
836 si->p2p.pool_index = subint - p2pm->p2p_subif_pool;
837 }
838 else
839 subint = vec_elt_at_index (p2pm->p2p_subif_pool, si->p2p.pool_index);
840 *flags = SUBINT_CONFIG_P2P;
841 }
Neale Ranns17ff3c12018-07-04 10:24:24 -0700842 else if (si->type == VNET_SW_INTERFACE_TYPE_PIPE)
843 {
844 pipe_t *pipe;
845
846 pipe = pipe_get (sw_if_index);
847 subint = &pipe->subint;
848 *flags = SUBINT_CONFIG_P2P;
849 }
Pavel Kotucek15ac81c2017-06-20 14:00:26 +0200850 else if (si->sub.eth.flags.default_sub)
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700851 {
852 subint = &main_intf->default_subint;
853 *flags = SUBINT_CONFIG_MATCH_0_TAG |
854 SUBINT_CONFIG_MATCH_1_TAG |
855 SUBINT_CONFIG_MATCH_2_TAG | SUBINT_CONFIG_MATCH_3_TAG;
856 }
857 else if ((si->sub.eth.flags.no_tags) || (si->sub.eth.raw_flags == 0))
858 {
859 // if no flags are set then this is a main interface
860 // so treat as untagged
861 subint = &main_intf->untagged_subint;
862 *flags = SUBINT_CONFIG_MATCH_0_TAG;
863 }
864 else
865 {
866 // one or two tags
867 // first get the vlan table
868 if (si->sub.eth.flags.dot1ad)
869 {
870 if (main_intf->dot1ad_vlans == 0)
871 {
872 // Allocate a vlan table from the pool
873 pool_get (em->vlan_pool, vlan_table);
874 main_intf->dot1ad_vlans = vlan_table - em->vlan_pool;
875 }
876 else
877 {
878 // Get ptr to existing vlan table
879 vlan_table =
880 vec_elt_at_index (em->vlan_pool, main_intf->dot1ad_vlans);
881 }
882 }
883 else
884 { // dot1q
885 if (main_intf->dot1q_vlans == 0)
886 {
887 // Allocate a vlan table from the pool
888 pool_get (em->vlan_pool, vlan_table);
889 main_intf->dot1q_vlans = vlan_table - em->vlan_pool;
890 }
891 else
892 {
893 // Get ptr to existing vlan table
894 vlan_table =
895 vec_elt_at_index (em->vlan_pool, main_intf->dot1q_vlans);
896 }
897 }
898
899 if (si->sub.eth.flags.one_tag)
900 {
901 *flags = si->sub.eth.flags.exact_match ?
902 SUBINT_CONFIG_MATCH_1_TAG :
903 (SUBINT_CONFIG_MATCH_1_TAG |
904 SUBINT_CONFIG_MATCH_2_TAG | SUBINT_CONFIG_MATCH_3_TAG);
905
906 if (si->sub.eth.flags.outer_vlan_id_any)
907 {
908 // not implemented yet
909 *unsupported = 1;
910 goto done;
911 }
912 else
913 {
914 // a single vlan, a common case
915 subint =
916 &vlan_table->vlans[si->sub.eth.
917 outer_vlan_id].single_tag_subint;
918 }
919
920 }
921 else
922 {
923 // Two tags
924 *flags = si->sub.eth.flags.exact_match ?
925 SUBINT_CONFIG_MATCH_2_TAG :
926 (SUBINT_CONFIG_MATCH_2_TAG | SUBINT_CONFIG_MATCH_3_TAG);
927
928 if (si->sub.eth.flags.outer_vlan_id_any
929 && si->sub.eth.flags.inner_vlan_id_any)
930 {
931 // not implemented yet
932 *unsupported = 1;
933 goto done;
934 }
935
936 if (si->sub.eth.flags.inner_vlan_id_any)
937 {
938 // a specific outer and "any" inner
939 // don't need a qinq table for this
940 subint =
941 &vlan_table->vlans[si->sub.eth.
942 outer_vlan_id].inner_any_subint;
943 if (si->sub.eth.flags.exact_match)
944 {
945 *flags = SUBINT_CONFIG_MATCH_2_TAG;
946 }
947 else
948 {
949 *flags = SUBINT_CONFIG_MATCH_2_TAG |
950 SUBINT_CONFIG_MATCH_3_TAG;
951 }
952 }
953 else
954 {
955 // a specific outer + specifc innner vlan id, a common case
956
957 // get the qinq table
958 if (vlan_table->vlans[si->sub.eth.outer_vlan_id].qinqs == 0)
959 {
960 // Allocate a qinq table from the pool
961 pool_get (em->qinq_pool, qinq_table);
962 vlan_table->vlans[si->sub.eth.outer_vlan_id].qinqs =
963 qinq_table - em->qinq_pool;
964 }
965 else
966 {
967 // Get ptr to existing qinq table
968 qinq_table =
969 vec_elt_at_index (em->qinq_pool,
970 vlan_table->vlans[si->sub.
971 eth.outer_vlan_id].
972 qinqs);
973 }
974 subint = &qinq_table->vlans[si->sub.eth.inner_vlan_id].subint;
975 }
976 }
Ed Warnickecb9cada2015-12-08 15:45:58 -0700977 }
978
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700979done:
Ed Warnickecb9cada2015-12-08 15:45:58 -0700980 return subint;
981}
982
Damjan Marion5beecec2018-09-10 13:09:21 +0200983static clib_error_t *
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700984ethernet_sw_interface_up_down (vnet_main_t * vnm, u32 sw_if_index, u32 flags)
Ed Warnickecb9cada2015-12-08 15:45:58 -0700985{
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700986 subint_config_t *subint;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700987 u32 dummy_flags;
988 u32 dummy_unsup;
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700989 clib_error_t *error = 0;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700990
991 // Find the config for this subinterface
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700992 subint =
993 ethernet_sw_interface_get_config (vnm, sw_if_index, &dummy_flags,
994 &dummy_unsup);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700995
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -0700996 if (subint == 0)
997 {
998 // not implemented yet or not ethernet
999 goto done;
1000 }
Ed Warnickecb9cada2015-12-08 15:45:58 -07001001
1002 subint->sw_if_index =
1003 ((flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) ? sw_if_index : ~0);
1004
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001005done:
Ed Warnickecb9cada2015-12-08 15:45:58 -07001006 return error;
1007}
1008
1009VNET_SW_INTERFACE_ADMIN_UP_DOWN_FUNCTION (ethernet_sw_interface_up_down);
1010
1011
Damjan Marion5beecec2018-09-10 13:09:21 +02001012#ifndef CLIB_MARCH_VARIANT
Ed Warnickecb9cada2015-12-08 15:45:58 -07001013// Set the L2/L3 mode for the subinterface
1014void
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001015ethernet_sw_interface_set_l2_mode (vnet_main_t * vnm, u32 sw_if_index, u32 l2)
Ed Warnickecb9cada2015-12-08 15:45:58 -07001016{
1017 subint_config_t *subint;
1018 u32 dummy_flags;
1019 u32 dummy_unsup;
1020 int is_port;
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001021 vnet_sw_interface_t *sw = vnet_get_sw_interface (vnm, sw_if_index);
Ed Warnickecb9cada2015-12-08 15:45:58 -07001022
1023 is_port = !(sw->type == VNET_SW_INTERFACE_TYPE_SUB);
1024
1025 // Find the config for this subinterface
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001026 subint =
1027 ethernet_sw_interface_get_config (vnm, sw_if_index, &dummy_flags,
1028 &dummy_unsup);
Ed Warnickecb9cada2015-12-08 15:45:58 -07001029
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001030 if (subint == 0)
1031 {
1032 // unimplemented or not ethernet
1033 goto done;
1034 }
Ed Warnickecb9cada2015-12-08 15:45:58 -07001035
1036 // Double check that the config we found is for our interface (or the interface is down)
1037 ASSERT ((subint->sw_if_index == sw_if_index) | (subint->sw_if_index == ~0));
1038
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001039 if (l2)
1040 {
1041 subint->flags |= SUBINT_CONFIG_L2;
1042 if (is_port)
1043 subint->flags |=
1044 SUBINT_CONFIG_MATCH_0_TAG | SUBINT_CONFIG_MATCH_1_TAG
1045 | SUBINT_CONFIG_MATCH_2_TAG | SUBINT_CONFIG_MATCH_3_TAG;
1046 }
1047 else
1048 {
1049 subint->flags &= ~SUBINT_CONFIG_L2;
1050 if (is_port)
1051 subint->flags &=
1052 ~(SUBINT_CONFIG_MATCH_1_TAG | SUBINT_CONFIG_MATCH_2_TAG
1053 | SUBINT_CONFIG_MATCH_3_TAG);
1054 }
Ed Warnickecb9cada2015-12-08 15:45:58 -07001055
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001056done:
Ed Warnickecb9cada2015-12-08 15:45:58 -07001057 return;
1058}
1059
Christian Dechamplain (cdechamp)07aecbb2016-04-05 10:40:38 -04001060/*
1061 * Set the L2/L3 mode for the subinterface regardless of port
1062 */
1063void
1064ethernet_sw_interface_set_l2_mode_noport (vnet_main_t * vnm,
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001065 u32 sw_if_index, u32 l2)
Christian Dechamplain (cdechamp)07aecbb2016-04-05 10:40:38 -04001066{
1067 subint_config_t *subint;
1068 u32 dummy_flags;
1069 u32 dummy_unsup;
1070
1071 /* Find the config for this subinterface */
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001072 subint =
1073 ethernet_sw_interface_get_config (vnm, sw_if_index, &dummy_flags,
1074 &dummy_unsup);
Christian Dechamplain (cdechamp)07aecbb2016-04-05 10:40:38 -04001075
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001076 if (subint == 0)
1077 {
1078 /* unimplemented or not ethernet */
1079 goto done;
1080 }
Christian Dechamplain (cdechamp)07aecbb2016-04-05 10:40:38 -04001081
1082 /*
1083 * Double check that the config we found is for our interface (or the
1084 * interface is down)
1085 */
1086 ASSERT ((subint->sw_if_index == sw_if_index) | (subint->sw_if_index == ~0));
1087
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001088 if (l2)
1089 {
1090 subint->flags |= SUBINT_CONFIG_L2;
1091 }
1092 else
1093 {
1094 subint->flags &= ~SUBINT_CONFIG_L2;
1095 }
Christian Dechamplain (cdechamp)07aecbb2016-04-05 10:40:38 -04001096
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001097done:
Christian Dechamplain (cdechamp)07aecbb2016-04-05 10:40:38 -04001098 return;
1099}
Damjan Marion5beecec2018-09-10 13:09:21 +02001100#endif
Ed Warnickecb9cada2015-12-08 15:45:58 -07001101
1102static clib_error_t *
1103ethernet_sw_interface_add_del (vnet_main_t * vnm,
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001104 u32 sw_if_index, u32 is_create)
Ed Warnickecb9cada2015-12-08 15:45:58 -07001105{
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001106 clib_error_t *error = 0;
Ed Warnickecb9cada2015-12-08 15:45:58 -07001107 subint_config_t *subint;
1108 u32 match_flags;
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001109 u32 unsupported = 0;
Ed Warnickecb9cada2015-12-08 15:45:58 -07001110
1111 // Find the config for this subinterface
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001112 subint =
1113 ethernet_sw_interface_get_config (vnm, sw_if_index, &match_flags,
1114 &unsupported);
Ed Warnickecb9cada2015-12-08 15:45:58 -07001115
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001116 if (subint == 0)
1117 {
1118 // not implemented yet or not ethernet
1119 if (unsupported)
1120 {
Damjan Marion607de1a2016-08-16 22:53:54 +02001121 // this is the NYI case
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001122 error = clib_error_return (0, "not implemented yet");
1123 }
1124 goto done;
Ed Warnickecb9cada2015-12-08 15:45:58 -07001125 }
Ed Warnickecb9cada2015-12-08 15:45:58 -07001126
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001127 if (!is_create)
1128 {
1129 subint->flags = 0;
1130 return error;
1131 }
Ed Warnickecb9cada2015-12-08 15:45:58 -07001132
1133 // Initialize the subint
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001134 if (subint->flags & SUBINT_CONFIG_VALID)
1135 {
1136 // Error vlan already in use
1137 error = clib_error_return (0, "vlan is already in use");
1138 }
1139 else
1140 {
Neale Ranns17ff3c12018-07-04 10:24:24 -07001141 // Note that config is L3 by default
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001142 subint->flags = SUBINT_CONFIG_VALID | match_flags;
1143 subint->sw_if_index = ~0; // because interfaces are initially down
1144 }
Ed Warnickecb9cada2015-12-08 15:45:58 -07001145
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001146done:
Ed Warnickecb9cada2015-12-08 15:45:58 -07001147 return error;
1148}
1149
1150VNET_SW_INTERFACE_ADD_DEL_FUNCTION (ethernet_sw_interface_add_del);
1151
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001152static char *ethernet_error_strings[] = {
Ed Warnickecb9cada2015-12-08 15:45:58 -07001153#define ethernet_error(n,c,s) s,
1154#include "error.def"
1155#undef ethernet_error
1156};
1157
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001158/* *INDENT-OFF* */
Ed Warnickecb9cada2015-12-08 15:45:58 -07001159VLIB_REGISTER_NODE (ethernet_input_node) = {
Ed Warnickecb9cada2015-12-08 15:45:58 -07001160 .name = "ethernet-input",
1161 /* Takes a vector of packets. */
1162 .vector_size = sizeof (u32),
Ed Warnickecb9cada2015-12-08 15:45:58 -07001163 .n_errors = ETHERNET_N_ERROR,
1164 .error_strings = ethernet_error_strings,
Ed Warnickecb9cada2015-12-08 15:45:58 -07001165 .n_next_nodes = ETHERNET_INPUT_N_NEXT,
1166 .next_nodes = {
1167#define _(s,n) [ETHERNET_INPUT_NEXT_##s] = n,
1168 foreach_ethernet_input_next
1169#undef _
1170 },
Ed Warnickecb9cada2015-12-08 15:45:58 -07001171 .format_buffer = format_ethernet_header_with_length,
1172 .format_trace = format_ethernet_input_trace,
1173 .unformat_buffer = unformat_ethernet_header,
1174};
1175
Damjan Marion5beecec2018-09-10 13:09:21 +02001176VLIB_REGISTER_NODE (ethernet_input_type_node) = {
Ed Warnickecb9cada2015-12-08 15:45:58 -07001177 .name = "ethernet-input-type",
1178 /* Takes a vector of packets. */
1179 .vector_size = sizeof (u32),
Ed Warnickecb9cada2015-12-08 15:45:58 -07001180 .n_next_nodes = ETHERNET_INPUT_N_NEXT,
1181 .next_nodes = {
1182#define _(s,n) [ETHERNET_INPUT_NEXT_##s] = n,
1183 foreach_ethernet_input_next
1184#undef _
1185 },
1186};
1187
Damjan Marion5beecec2018-09-10 13:09:21 +02001188VLIB_REGISTER_NODE (ethernet_input_not_l2_node) = {
Ed Warnickecb9cada2015-12-08 15:45:58 -07001189 .name = "ethernet-input-not-l2",
1190 /* Takes a vector of packets. */
1191 .vector_size = sizeof (u32),
Ed Warnickecb9cada2015-12-08 15:45:58 -07001192 .n_next_nodes = ETHERNET_INPUT_N_NEXT,
1193 .next_nodes = {
1194#define _(s,n) [ETHERNET_INPUT_NEXT_##s] = n,
1195 foreach_ethernet_input_next
1196#undef _
1197 },
1198};
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001199/* *INDENT-ON* */
Ed Warnickecb9cada2015-12-08 15:45:58 -07001200
Damjan Marion5beecec2018-09-10 13:09:21 +02001201#ifndef CLIB_MARCH_VARIANT
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001202void
1203ethernet_set_rx_redirect (vnet_main_t * vnm,
1204 vnet_hw_interface_t * hi, u32 enable)
Ed Warnickecb9cada2015-12-08 15:45:58 -07001205{
1206 // Insure all packets go to ethernet-input (i.e. untagged ipv4 packets
1207 // don't go directly to ip4-input)
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001208 vnet_hw_interface_rx_redirect_to_node
1209 (vnm, hi->hw_if_index, enable ? ethernet_input_node.index : ~0);
Ed Warnickecb9cada2015-12-08 15:45:58 -07001210}
1211
1212
1213/*
1214 * Initialization and registration for the next_by_ethernet structure
1215 */
1216
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001217clib_error_t *
1218next_by_ethertype_init (next_by_ethertype_t * l3_next)
Ed Warnickecb9cada2015-12-08 15:45:58 -07001219{
1220 l3_next->input_next_by_type = sparse_vec_new
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001221 ( /* elt bytes */ sizeof (l3_next->input_next_by_type[0]),
Ed Warnickecb9cada2015-12-08 15:45:58 -07001222 /* bits in index */ BITS (((ethernet_header_t *) 0)->type));
1223
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001224 vec_validate (l3_next->sparse_index_by_input_next_index,
1225 ETHERNET_INPUT_NEXT_DROP);
1226 vec_validate (l3_next->sparse_index_by_input_next_index,
1227 ETHERNET_INPUT_NEXT_PUNT);
1228 l3_next->sparse_index_by_input_next_index[ETHERNET_INPUT_NEXT_DROP] =
1229 SPARSE_VEC_INVALID_INDEX;
1230 l3_next->sparse_index_by_input_next_index[ETHERNET_INPUT_NEXT_PUNT] =
1231 SPARSE_VEC_INVALID_INDEX;
1232
Damjan Marion607de1a2016-08-16 22:53:54 +02001233 /*
1234 * Make sure we don't wipe out an ethernet registration by mistake
Dave Barach1f49ed62016-02-24 11:29:06 -05001235 * Can happen if init function ordering constraints are missing.
1236 */
1237 if (CLIB_DEBUG > 0)
1238 {
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001239 ethernet_main_t *em = &ethernet_main;
1240 ASSERT (em->next_by_ethertype_register_called == 0);
Dave Barach1f49ed62016-02-24 11:29:06 -05001241 }
1242
Ed Warnickecb9cada2015-12-08 15:45:58 -07001243 return 0;
1244}
1245
1246// Add an ethertype -> next index mapping to the structure
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001247clib_error_t *
1248next_by_ethertype_register (next_by_ethertype_t * l3_next,
1249 u32 ethertype, u32 next_index)
Ed Warnickecb9cada2015-12-08 15:45:58 -07001250{
1251 u32 i;
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001252 u16 *n;
1253 ethernet_main_t *em = &ethernet_main;
Ed Warnickecb9cada2015-12-08 15:45:58 -07001254
Dave Barach1f49ed62016-02-24 11:29:06 -05001255 if (CLIB_DEBUG > 0)
1256 {
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001257 ethernet_main_t *em = &ethernet_main;
Dave Barach1f49ed62016-02-24 11:29:06 -05001258 em->next_by_ethertype_register_called = 1;
1259 }
1260
Ed Warnickecb9cada2015-12-08 15:45:58 -07001261 /* Setup ethernet type -> next index sparse vector mapping. */
1262 n = sparse_vec_validate (l3_next->input_next_by_type, ethertype);
1263 n[0] = next_index;
1264
1265 /* Rebuild next index -> sparse index inverse mapping when sparse vector
1266 is updated. */
1267 vec_validate (l3_next->sparse_index_by_input_next_index, next_index);
1268 for (i = 1; i < vec_len (l3_next->input_next_by_type); i++)
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001269 l3_next->
1270 sparse_index_by_input_next_index[l3_next->input_next_by_type[i]] = i;
Ed Warnickecb9cada2015-12-08 15:45:58 -07001271
1272 // do not allow the cached next index's to be updated if L3
1273 // redirect is enabled, as it will have overwritten them
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001274 if (!em->redirect_l3)
1275 {
1276 // Cache common ethertypes directly
1277 if (ethertype == ETHERNET_TYPE_IP4)
1278 {
1279 l3_next->input_next_ip4 = next_index;
1280 }
1281 else if (ethertype == ETHERNET_TYPE_IP6)
1282 {
1283 l3_next->input_next_ip6 = next_index;
1284 }
Neale Ranns0f26c5a2017-03-01 15:12:11 -08001285 else if (ethertype == ETHERNET_TYPE_MPLS)
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001286 {
1287 l3_next->input_next_mpls = next_index;
1288 }
Ed Warnickecb9cada2015-12-08 15:45:58 -07001289 }
Ed Warnickecb9cada2015-12-08 15:45:58 -07001290 return 0;
1291}
1292
1293
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001294static clib_error_t *
1295ethernet_input_init (vlib_main_t * vm)
Ed Warnickecb9cada2015-12-08 15:45:58 -07001296{
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001297 ethernet_main_t *em = &ethernet_main;
1298 __attribute__ ((unused)) vlan_table_t *invalid_vlan_table;
1299 __attribute__ ((unused)) qinq_table_t *invalid_qinq_table;
Ed Warnickecb9cada2015-12-08 15:45:58 -07001300
1301 ethernet_setup_node (vm, ethernet_input_node.index);
1302 ethernet_setup_node (vm, ethernet_input_type_node.index);
1303 ethernet_setup_node (vm, ethernet_input_not_l2_node.index);
1304
1305 next_by_ethertype_init (&em->l3_next);
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001306
Ed Warnickecb9cada2015-12-08 15:45:58 -07001307 // Initialize pools and vector for vlan parsing
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001308 vec_validate (em->main_intfs, 10); // 10 main interfaces
1309 pool_alloc (em->vlan_pool, 10);
1310 pool_alloc (em->qinq_pool, 1);
Ed Warnickecb9cada2015-12-08 15:45:58 -07001311
1312 // The first vlan pool will always be reserved for an invalid table
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001313 pool_get (em->vlan_pool, invalid_vlan_table); // first id = 0
Ed Warnickecb9cada2015-12-08 15:45:58 -07001314 // The first qinq pool will always be reserved for an invalid table
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001315 pool_get (em->qinq_pool, invalid_qinq_table); // first id = 0
Ed Warnickecb9cada2015-12-08 15:45:58 -07001316
1317 return 0;
1318}
1319
1320VLIB_INIT_FUNCTION (ethernet_input_init);
1321
1322void
1323ethernet_register_input_type (vlib_main_t * vm,
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001324 ethernet_type_t type, u32 node_index)
Ed Warnickecb9cada2015-12-08 15:45:58 -07001325{
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001326 ethernet_main_t *em = &ethernet_main;
1327 ethernet_type_info_t *ti;
Ed Warnickecb9cada2015-12-08 15:45:58 -07001328 u32 i;
1329
1330 {
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001331 clib_error_t *error = vlib_call_init_function (vm, ethernet_init);
Ed Warnickecb9cada2015-12-08 15:45:58 -07001332 if (error)
1333 clib_error_report (error);
1334 }
1335
1336 ti = ethernet_get_type_info (em, type);
1337 ti->node_index = node_index;
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001338 ti->next_index = vlib_node_add_next (vm,
1339 ethernet_input_node.index, node_index);
1340 i = vlib_node_add_next (vm, ethernet_input_type_node.index, node_index);
Ed Warnickecb9cada2015-12-08 15:45:58 -07001341 ASSERT (i == ti->next_index);
1342
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001343 i = vlib_node_add_next (vm, ethernet_input_not_l2_node.index, node_index);
Ed Warnickecb9cada2015-12-08 15:45:58 -07001344 ASSERT (i == ti->next_index);
1345
1346 // Add the L3 node for this ethertype to the next nodes structure
1347 next_by_ethertype_register (&em->l3_next, type, ti->next_index);
1348
1349 // Call the registration functions for other nodes that want a mapping
1350 l2bvi_register_input_type (vm, type, node_index);
1351}
1352
1353void
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001354ethernet_register_l2_input (vlib_main_t * vm, u32 node_index)
Ed Warnickecb9cada2015-12-08 15:45:58 -07001355{
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001356 ethernet_main_t *em = &ethernet_main;
Ed Warnickecb9cada2015-12-08 15:45:58 -07001357 u32 i;
1358
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001359 em->l2_next =
1360 vlib_node_add_next (vm, ethernet_input_node.index, node_index);
Ed Warnickecb9cada2015-12-08 15:45:58 -07001361
Damjan Marion607de1a2016-08-16 22:53:54 +02001362 /*
Ed Warnickecb9cada2015-12-08 15:45:58 -07001363 * Even if we never use these arcs, we have to align the next indices...
1364 */
1365 i = vlib_node_add_next (vm, ethernet_input_type_node.index, node_index);
1366
1367 ASSERT (i == em->l2_next);
1368
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001369 i = vlib_node_add_next (vm, ethernet_input_not_l2_node.index, node_index);
Ed Warnickecb9cada2015-12-08 15:45:58 -07001370 ASSERT (i == em->l2_next);
1371}
1372
1373// Register a next node for L3 redirect, and enable L3 redirect
1374void
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001375ethernet_register_l3_redirect (vlib_main_t * vm, u32 node_index)
Ed Warnickecb9cada2015-12-08 15:45:58 -07001376{
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001377 ethernet_main_t *em = &ethernet_main;
Ed Warnickecb9cada2015-12-08 15:45:58 -07001378 u32 i;
1379
1380 em->redirect_l3 = 1;
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001381 em->redirect_l3_next = vlib_node_add_next (vm,
1382 ethernet_input_node.index,
1383 node_index);
Ed Warnickecb9cada2015-12-08 15:45:58 -07001384 /*
1385 * Change the cached next nodes to the redirect node
1386 */
1387 em->l3_next.input_next_ip4 = em->redirect_l3_next;
1388 em->l3_next.input_next_ip6 = em->redirect_l3_next;
1389 em->l3_next.input_next_mpls = em->redirect_l3_next;
1390
1391 /*
1392 * Even if we never use these arcs, we have to align the next indices...
1393 */
1394 i = vlib_node_add_next (vm, ethernet_input_type_node.index, node_index);
1395
1396 ASSERT (i == em->redirect_l3_next);
jerryianff82ed62016-12-05 17:13:00 +08001397
1398 i = vlib_node_add_next (vm, ethernet_input_not_l2_node.index, node_index);
1399
1400 ASSERT (i == em->redirect_l3_next);
Ed Warnickecb9cada2015-12-08 15:45:58 -07001401}
Damjan Marion5beecec2018-09-10 13:09:21 +02001402#endif
Keith Burns (alagalah)e70dcc82016-08-15 18:33:19 -07001403
1404/*
1405 * fd.io coding-style-patch-verification: ON
1406 *
1407 * Local Variables:
1408 * eval: (c-set-style "gnu")
1409 * End:
1410 */