Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1 | /* |
| 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 Kotucek | 15ac81c | 2017-06-20 14:00:26 +0200 | [diff] [blame] | 43 | #include <vnet/ethernet/p2p_ethernet.h> |
Neale Ranns | 17ff3c1 | 2018-07-04 10:24:24 -0700 | [diff] [blame] | 44 | #include <vnet/devices/pipe/pipe.h> |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 45 | #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) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 52 | _ (LLC, "llc-input") |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 53 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 54 | typedef enum |
| 55 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 56 | #define _(s,n) ETHERNET_INPUT_NEXT_##s, |
| 57 | foreach_ethernet_input_next |
| 58 | #undef _ |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 59 | ETHERNET_INPUT_N_NEXT, |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 60 | } ethernet_input_next_t; |
| 61 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 62 | typedef struct |
| 63 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 64 | u8 packet_data[32]; |
| 65 | } ethernet_input_trace_t; |
| 66 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 67 | static u8 * |
| 68 | format_ethernet_input_trace (u8 * s, va_list * va) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 69 | { |
| 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) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 72 | ethernet_input_trace_t *t = va_arg (*va, ethernet_input_trace_t *); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 73 | |
| 74 | s = format (s, "%U", format_ethernet_header, t->packet_data); |
| 75 | |
| 76 | return s; |
| 77 | } |
| 78 | |
| 79 | vlib_node_registration_t ethernet_input_node; |
| 80 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 81 | typedef enum |
| 82 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 83 | ETHERNET_INPUT_VARIANT_ETHERNET, |
| 84 | ETHERNET_INPUT_VARIANT_ETHERNET_TYPE, |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 85 | ETHERNET_INPUT_VARIANT_NOT_L2, |
| 86 | } ethernet_input_variant_t; |
| 87 | |
| 88 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 89 | // Parse the ethernet header to extract vlan tags and innermost ethertype |
| 90 | static_always_inline void |
| 91 | parse_header (ethernet_input_variant_t variant, |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 92 | vlib_buffer_t * b0, |
| 93 | u16 * type, |
| 94 | u16 * orig_type, |
| 95 | u16 * outer_id, u16 * inner_id, u32 * match_flags) |
| 96 | { |
Chris Luke | 194ebc5 | 2016-04-25 14:26:55 -0400 | [diff] [blame] | 97 | u8 vlan_count; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 98 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 99 | if (variant == ETHERNET_INPUT_VARIANT_ETHERNET |
| 100 | || variant == ETHERNET_INPUT_VARIANT_NOT_L2) |
| 101 | { |
| 102 | ethernet_header_t *e0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 103 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 104 | e0 = (void *) (b0->data + b0->current_data); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 105 | |
Damjan Marion | 072401e | 2017-07-13 18:53:27 +0200 | [diff] [blame] | 106 | vnet_buffer (b0)->l2_hdr_offset = b0->current_data; |
Steven | 35de3b3 | 2017-12-03 23:40:54 -0800 | [diff] [blame] | 107 | b0->flags |= VNET_BUFFER_F_L2_HDR_OFFSET_VALID; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 108 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 109 | vlib_buffer_advance (b0, sizeof (e0[0])); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 110 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 111 | *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 Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 117 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 118 | e0 = (void *) (b0->data + b0->current_data); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 119 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 120 | vlib_buffer_advance (b0, sizeof (e0[0])); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 121 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 122 | *type = clib_net_to_host_u16 (e0[0]); |
| 123 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 124 | |
| 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 Luke | 194ebc5 | 2016-04-25 14:26:55 -0400 | [diff] [blame] | 133 | vlan_count = 0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 134 | |
| 135 | // check for vlan encaps |
Damjan Marion | b94bdad | 2016-09-19 11:32:03 +0200 | [diff] [blame] | 136 | if (ethernet_frame_is_tagged (*type)) |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 137 | { |
| 138 | ethernet_vlan_header_t *h0; |
| 139 | u16 tag; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 140 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 141 | *match_flags = SUBINT_CONFIG_VALID | SUBINT_CONFIG_MATCH_1_TAG; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 142 | |
| 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) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 147 | *outer_id = tag & 0xfff; |
Neale Ranns | 30d0fd4 | 2017-05-30 07:30:04 -0700 | [diff] [blame] | 148 | if (0 == *outer_id) |
| 149 | *match_flags &= ~SUBINT_CONFIG_MATCH_1_TAG; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 150 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 151 | *type = clib_net_to_host_u16 (h0->type); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 152 | |
| 153 | vlib_buffer_advance (b0, sizeof (h0[0])); |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 154 | vlan_count = 1; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 155 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 156 | 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) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 171 | if (*type == ETHERNET_TYPE_VLAN) |
| 172 | { |
| 173 | // More than double tagged packet |
| 174 | *match_flags = SUBINT_CONFIG_VALID | SUBINT_CONFIG_MATCH_3_TAG; |
Eyal Bari | 6f7ebf9 | 2017-06-13 12:09:37 +0300 | [diff] [blame] | 175 | |
| 176 | vlib_buffer_advance (b0, sizeof (h0[0])); |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 177 | vlan_count = 3; // "unknown" number, aka, 3-or-more |
| 178 | } |
| 179 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 180 | } |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 181 | ethernet_buffer_set_vlan_count (b0, vlan_count); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 182 | } |
| 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. |
| 187 | static_always_inline void |
| 188 | identify_subint (vnet_hw_interface_t * hi, |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 189 | 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 Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 195 | { |
| 196 | u32 matched; |
| 197 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 198 | matched = eth_identify_subint (hi, b0, match_flags, |
| 199 | main_intf, vlan_intf, qinq_intf, |
| 200 | new_sw_if_index, error0, is_l2); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 201 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 202 | if (matched) |
| 203 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 204 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 205 | // 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 Marion | 072401e | 2017-07-13 18:53:27 +0200 | [diff] [blame] | 211 | e0 = (void *) (b0->data + vnet_buffer (b0)->l2_hdr_offset); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 212 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 213 | 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 Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 224 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 225 | } |
| 226 | |
| 227 | static_always_inline void |
| 228 | determine_next_node (ethernet_main_t * em, |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 229 | ethernet_input_variant_t variant, |
| 230 | u32 is_l20, |
| 231 | u32 type0, vlib_buffer_t * b0, u8 * error0, u8 * next0) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 232 | { |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 233 | if (PREDICT_FALSE (*error0 != ETHERNET_ERROR_NONE)) |
| 234 | { |
| 235 | // some error occurred |
| 236 | *next0 = ETHERNET_INPUT_NEXT_DROP; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 237 | } |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 238 | else if (is_l20) |
| 239 | { |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 240 | // record the L2 len and reset the buffer so the L2 header is preserved |
John Lo | b14826e | 2018-04-18 15:52:23 -0400 | [diff] [blame] | 241 | 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 Bari | 6f7ebf9 | 2017-06-13 12:09:37 +0300 | [diff] [blame] | 244 | ASSERT (vnet_buffer (b0)->l2.l2_len == |
| 245 | ethernet_buffer_header_size (b0)); |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 246 | 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 Ranns | 0f26c5a | 2017-03-01 15:12:11 -0800 | [diff] [blame] | 258 | else if (type0 == ETHERNET_TYPE_MPLS) |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 259 | { |
| 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 Marion | 607de1a | 2016-08-16 22:53:54 +0200 | [diff] [blame] | 280 | // If variant is variant_ethernet then we came from LLC processing. Don't |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 281 | // 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 Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 287 | } |
| 288 | |
| 289 | static_always_inline uword |
| 290 | ethernet_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) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 295 | vnet_main_t *vnm = vnet_get_main (); |
| 296 | ethernet_main_t *em = ðernet_main; |
| 297 | vlib_node_runtime_t *error_node; |
| 298 | u32 n_left_from, next_index, *from, *to_next; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 299 | u32 stats_sw_if_index, stats_n_packets, stats_n_bytes; |
Damjan Marion | 067cd62 | 2018-07-11 12:47:43 +0200 | [diff] [blame] | 300 | u32 thread_index = vm->thread_index; |
Dave Barach | cfba1e2 | 2016-11-16 10:23:50 -0500 | [diff] [blame] | 301 | u32 cached_sw_if_index = ~0; |
| 302 | u32 cached_is_l2 = 0; /* shut up gcc */ |
John Lo | 1904c47 | 2017-03-10 17:15:22 -0500 | [diff] [blame] | 303 | vnet_hw_interface_t *hi = NULL; /* used for main interface only */ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 304 | |
| 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) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 333 | vlib_buffer_t *b0, *b1; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 334 | u8 next0, next1, error0, error1; |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 335 | 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 Barach | cfba1e2 | 2016-11-16 10:23:50 -0500 | [diff] [blame] | 345 | ethernet_header_t *e0, *e1; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 346 | |
| 347 | /* Prefetch next iteration. */ |
| 348 | { |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 349 | vlib_buffer_t *b2, *b3; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 350 | |
| 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 Barach | cfba1e2 | 2016-11-16 10:23:50 -0500 | [diff] [blame] | 374 | 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 Lo | cc53285 | 2016-12-14 15:42:45 -0500 | [diff] [blame] | 379 | /* Speed-path for the untagged case */ |
Dave Barach | cfba1e2 | 2016-11-16 10:23:50 -0500 | [diff] [blame] | 380 | if (PREDICT_TRUE (variant == ETHERNET_INPUT_VARIANT_ETHERNET |
Damjan Marion | c6969b5 | 2018-02-19 12:14:06 +0100 | [diff] [blame] | 381 | && !ethernet_frame_is_any_tagged_x2 (type0, |
| 382 | type1))) |
Dave Barach | cfba1e2 | 2016-11-16 10:23:50 -0500 | [diff] [blame] | 383 | { |
| 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 Lo | 1904c47 | 2017-03-10 17:15:22 -0500 | [diff] [blame] | 396 | /* Now sw_if_index0 == sw_if_index1 */ |
Dave Barach | cfba1e2 | 2016-11-16 10:23:50 -0500 | [diff] [blame] | 397 | if (PREDICT_FALSE (cached_sw_if_index != sw_if_index0)) |
| 398 | { |
| 399 | cached_sw_if_index = sw_if_index0; |
John Lo | 1904c47 | 2017-03-10 17:15:22 -0500 | [diff] [blame] | 400 | hi = vnet_get_sup_hw_interface (vnm, sw_if_index0); |
| 401 | intf0 = vec_elt_at_index (em->main_intfs, hi->hw_if_index); |
Dave Barach | cfba1e2 | 2016-11-16 10:23:50 -0500 | [diff] [blame] | 402 | subint0 = &intf0->untagged_subint; |
| 403 | cached_is_l2 = is_l20 = subint0->flags & SUBINT_CONFIG_L2; |
| 404 | } |
John Lo | 7714b30 | 2016-12-20 16:59:02 -0500 | [diff] [blame] | 405 | |
Damjan Marion | 072401e | 2017-07-13 18:53:27 +0200 | [diff] [blame] | 406 | vnet_buffer (b0)->l2_hdr_offset = b0->current_data; |
| 407 | vnet_buffer (b1)->l2_hdr_offset = b1->current_data; |
Steven | 35de3b3 | 2017-12-03 23:40:54 -0800 | [diff] [blame] | 408 | 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 Lo | 7714b30 | 2016-12-20 16:59:02 -0500 | [diff] [blame] | 416 | |
Dave Barach | cfba1e2 | 2016-11-16 10:23:50 -0500 | [diff] [blame] | 417 | if (PREDICT_TRUE (is_l20 != 0)) |
| 418 | { |
| 419 | next0 = em->l2_next; |
| 420 | vnet_buffer (b0)->l2.l2_len = sizeof (ethernet_header_t); |
Dave Barach | cfba1e2 | 2016-11-16 10:23:50 -0500 | [diff] [blame] | 421 | next1 = em->l2_next; |
| 422 | vnet_buffer (b1)->l2.l2_len = sizeof (ethernet_header_t); |
Dave Barach | cfba1e2 | 2016-11-16 10:23:50 -0500 | [diff] [blame] | 423 | } |
John Lo | cc53285 | 2016-12-14 15:42:45 -0500 | [diff] [blame] | 424 | else |
| 425 | { |
John Lo | 1904c47 | 2017-03-10 17:15:22 -0500 | [diff] [blame] | 426 | if (!ethernet_address_cast (e0->dst_address) && |
Hongjun Ni | 9e3e361 | 2017-04-26 18:40:55 +0800 | [diff] [blame] | 427 | (hi->hw_address != 0) && |
John Lo | 1904c47 | 2017-03-10 17:15:22 -0500 | [diff] [blame] | 428 | !eth_mac_equal ((u8 *) e0, hi->hw_address)) |
| 429 | error0 = ETHERNET_ERROR_L3_MAC_MISMATCH; |
| 430 | if (!ethernet_address_cast (e1->dst_address) && |
Hongjun Ni | 9e3e361 | 2017-04-26 18:40:55 +0800 | [diff] [blame] | 431 | (hi->hw_address != 0) && |
John Lo | 1904c47 | 2017-03-10 17:15:22 -0500 | [diff] [blame] | 432 | !eth_mac_equal ((u8 *) e1, hi->hw_address)) |
| 433 | error1 = ETHERNET_ERROR_L3_MAC_MISMATCH; |
John Lo | b14826e | 2018-04-18 15:52:23 -0400 | [diff] [blame] | 434 | vlib_buffer_advance (b0, sizeof (ethernet_header_t)); |
John Lo | cc53285 | 2016-12-14 15:42:45 -0500 | [diff] [blame] | 435 | determine_next_node (em, variant, 0, type0, b0, |
| 436 | &error0, &next0); |
John Lo | b14826e | 2018-04-18 15:52:23 -0400 | [diff] [blame] | 437 | vlib_buffer_advance (b1, sizeof (ethernet_header_t)); |
John Lo | cc53285 | 2016-12-14 15:42:45 -0500 | [diff] [blame] | 438 | determine_next_node (em, variant, 0, type1, b1, |
| 439 | &error1, &next1); |
John Lo | cc53285 | 2016-12-14 15:42:45 -0500 | [diff] [blame] | 440 | } |
| 441 | goto ship_it01; |
Dave Barach | cfba1e2 | 2016-11-16 10:23:50 -0500 | [diff] [blame] | 442 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 443 | |
John Lo | cc53285 | 2016-12-14 15:42:45 -0500 | [diff] [blame] | 444 | /* Slow-path for the tagged case */ |
| 445 | slowpath: |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 446 | parse_header (variant, |
| 447 | b0, |
| 448 | &type0, |
| 449 | &orig_type0, &outer_id0, &inner_id0, &match_flags0); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 450 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 451 | parse_header (variant, |
| 452 | b1, |
| 453 | &type1, |
| 454 | &orig_type1, &outer_id1, &inner_id1, &match_flags1); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 455 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 456 | 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 Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 458 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 459 | 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 Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 467 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 468 | 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 Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 476 | |
| 477 | identify_subint (hi0, |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 478 | b0, |
| 479 | match_flags0, |
| 480 | main_intf0, |
| 481 | vlan_intf0, |
| 482 | qinq_intf0, &new_sw_if_index0, &error0, &is_l20); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 483 | |
| 484 | identify_subint (hi1, |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 485 | b1, |
| 486 | match_flags1, |
| 487 | main_intf1, |
| 488 | vlan_intf1, |
| 489 | qinq_intf1, &new_sw_if_index1, &error1, &is_l21); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 490 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 491 | // 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 Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 498 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 499 | // 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 Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 505 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 506 | len0 = vlib_buffer_length_in_chain (vm, b0) + b0->current_data |
Damjan Marion | 072401e | 2017-07-13 18:53:27 +0200 | [diff] [blame] | 507 | - vnet_buffer (b0)->l2_hdr_offset; |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 508 | len1 = vlib_buffer_length_in_chain (vm, b1) + b1->current_data |
Damjan Marion | 072401e | 2017-07-13 18:53:27 +0200 | [diff] [blame] | 509 | - vnet_buffer (b1)->l2_hdr_offset; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 510 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 511 | stats_n_packets += 2; |
| 512 | stats_n_bytes += len0 + len1; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 513 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 514 | if (PREDICT_FALSE |
| 515 | (!(new_sw_if_index0 == stats_sw_if_index |
| 516 | && new_sw_if_index1 == stats_sw_if_index))) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 517 | { |
| 518 | stats_n_packets -= 2; |
| 519 | stats_n_bytes -= len0 + len1; |
| 520 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 521 | 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 Marion | 586afd7 | 2017-04-05 19:18:20 +0200 | [diff] [blame] | 527 | thread_index, |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 528 | 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 Marion | 586afd7 | 2017-04-05 19:18:20 +0200 | [diff] [blame] | 536 | thread_index, |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 537 | new_sw_if_index1, 1, |
| 538 | len1); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 539 | |
| 540 | if (new_sw_if_index0 == new_sw_if_index1) |
| 541 | { |
| 542 | if (stats_n_packets > 0) |
| 543 | { |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 544 | vlib_increment_combined_counter |
| 545 | (vnm->interface_main.combined_sw_if_counters |
| 546 | + VNET_INTERFACE_COUNTER_RX, |
Damjan Marion | 586afd7 | 2017-04-05 19:18:20 +0200 | [diff] [blame] | 547 | thread_index, |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 548 | stats_sw_if_index, |
| 549 | stats_n_packets, stats_n_bytes); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 550 | stats_n_packets = stats_n_bytes = 0; |
| 551 | } |
| 552 | stats_sw_if_index = new_sw_if_index0; |
| 553 | } |
| 554 | } |
| 555 | } |
| 556 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 557 | if (variant == ETHERNET_INPUT_VARIANT_NOT_L2) |
| 558 | is_l20 = is_l21 = 0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 559 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 560 | 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); |
Steven | 35de3b3 | 2017-12-03 23:40:54 -0800 | [diff] [blame] | 564 | 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) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 570 | |
John Lo | 1904c47 | 2017-03-10 17:15:22 -0500 | [diff] [blame] | 571 | ship_it01: |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 572 | b0->error = error_node->errors[error0]; |
| 573 | b1->error = error_node->errors[error1]; |
| 574 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 575 | // 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 Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 579 | } |
| 580 | |
| 581 | while (n_left_from > 0 && n_left_to_next > 0) |
| 582 | { |
| 583 | u32 bi0; |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 584 | vlib_buffer_t *b0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 585 | u8 error0, next0; |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 586 | 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 Barach | cfba1e2 | 2016-11-16 10:23:50 -0500 | [diff] [blame] | 594 | ethernet_header_t *e0; |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 595 | u32 is_l20; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 596 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 597 | // Prefetch next iteration |
| 598 | if (n_left_from > 1) |
| 599 | { |
| 600 | vlib_buffer_t *p2; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 601 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 602 | 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 Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 608 | 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 Barach | cfba1e2 | 2016-11-16 10:23:50 -0500 | [diff] [blame] | 617 | e0 = vlib_buffer_get_current (b0); |
| 618 | type0 = clib_net_to_host_u16 (e0->type); |
| 619 | |
John Lo | cc53285 | 2016-12-14 15:42:45 -0500 | [diff] [blame] | 620 | /* Speed-path for the untagged case */ |
Dave Barach | cfba1e2 | 2016-11-16 10:23:50 -0500 | [diff] [blame] | 621 | 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 Lo | 1904c47 | 2017-03-10 17:15:22 -0500 | [diff] [blame] | 634 | hi = vnet_get_sup_hw_interface (vnm, sw_if_index0); |
| 635 | intf0 = vec_elt_at_index (em->main_intfs, hi->hw_if_index); |
Dave Barach | cfba1e2 | 2016-11-16 10:23:50 -0500 | [diff] [blame] | 636 | subint0 = &intf0->untagged_subint; |
| 637 | cached_is_l2 = is_l20 = subint0->flags & SUBINT_CONFIG_L2; |
| 638 | } |
John Lo | 7714b30 | 2016-12-20 16:59:02 -0500 | [diff] [blame] | 639 | |
Damjan Marion | 072401e | 2017-07-13 18:53:27 +0200 | [diff] [blame] | 640 | vnet_buffer (b0)->l2_hdr_offset = b0->current_data; |
Steven | 35de3b3 | 2017-12-03 23:40:54 -0800 | [diff] [blame] | 641 | 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 Lo | 7714b30 | 2016-12-20 16:59:02 -0500 | [diff] [blame] | 645 | |
Dave Barach | cfba1e2 | 2016-11-16 10:23:50 -0500 | [diff] [blame] | 646 | if (PREDICT_TRUE (is_l20 != 0)) |
| 647 | { |
| 648 | next0 = em->l2_next; |
| 649 | vnet_buffer (b0)->l2.l2_len = sizeof (ethernet_header_t); |
Dave Barach | cfba1e2 | 2016-11-16 10:23:50 -0500 | [diff] [blame] | 650 | } |
John Lo | cc53285 | 2016-12-14 15:42:45 -0500 | [diff] [blame] | 651 | else |
| 652 | { |
John Lo | 1904c47 | 2017-03-10 17:15:22 -0500 | [diff] [blame] | 653 | if (!ethernet_address_cast (e0->dst_address) && |
Hongjun Ni | 9e3e361 | 2017-04-26 18:40:55 +0800 | [diff] [blame] | 654 | (hi->hw_address != 0) && |
John Lo | 1904c47 | 2017-03-10 17:15:22 -0500 | [diff] [blame] | 655 | !eth_mac_equal ((u8 *) e0, hi->hw_address)) |
| 656 | error0 = ETHERNET_ERROR_L3_MAC_MISMATCH; |
John Lo | cc53285 | 2016-12-14 15:42:45 -0500 | [diff] [blame] | 657 | 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 Barach | cfba1e2 | 2016-11-16 10:23:50 -0500 | [diff] [blame] | 662 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 663 | |
John Lo | cc53285 | 2016-12-14 15:42:45 -0500 | [diff] [blame] | 664 | /* Slow-path for the tagged case */ |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 665 | parse_header (variant, |
| 666 | b0, |
| 667 | &type0, |
| 668 | &orig_type0, &outer_id0, &inner_id0, &match_flags0); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 669 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 670 | old_sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 671 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 672 | 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 Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 680 | |
| 681 | identify_subint (hi0, |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 682 | b0, |
| 683 | match_flags0, |
| 684 | main_intf0, |
| 685 | vlan_intf0, |
| 686 | qinq_intf0, &new_sw_if_index0, &error0, &is_l20); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 687 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 688 | // 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 Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 692 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 693 | // 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 Marion | 607de1a | 2016-08-16 22:53:54 +0200 | [diff] [blame] | 698 | // Interface level counters include packets received on the main |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 699 | // interface and all subinterfaces. Subinterface level counters |
| 700 | // include only those packets received on that subinterface |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 701 | // Increment stats if the subint is valid and it is not the main intf |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 702 | if ((new_sw_if_index0 != ~0) |
| 703 | && (new_sw_if_index0 != old_sw_if_index0)) |
| 704 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 705 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 706 | len0 = vlib_buffer_length_in_chain (vm, b0) + b0->current_data |
Damjan Marion | 072401e | 2017-07-13 18:53:27 +0200 | [diff] [blame] | 707 | - vnet_buffer (b0)->l2_hdr_offset; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 708 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 709 | stats_n_packets += 1; |
| 710 | stats_n_bytes += len0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 711 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 712 | // Batch stat increments from the same subinterface so counters |
Damjan Marion | 607de1a | 2016-08-16 22:53:54 +0200 | [diff] [blame] | 713 | // don't need to be incremented for every packet. |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 714 | if (PREDICT_FALSE (new_sw_if_index0 != stats_sw_if_index)) |
| 715 | { |
| 716 | stats_n_packets -= 1; |
| 717 | stats_n_bytes -= len0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 718 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 719 | 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 Marion | 586afd7 | 2017-04-05 19:18:20 +0200 | [diff] [blame] | 723 | thread_index, new_sw_if_index0, 1, len0); |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 724 | 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 Marion | 586afd7 | 2017-04-05 19:18:20 +0200 | [diff] [blame] | 729 | thread_index, |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 730 | 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 Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 735 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 736 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 737 | if (variant == ETHERNET_INPUT_VARIANT_NOT_L2) |
| 738 | is_l20 = 0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 739 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 740 | determine_next_node (em, variant, is_l20, type0, b0, &error0, |
| 741 | &next0); |
Steven | 35de3b3 | 2017-12-03 23:40:54 -0800 | [diff] [blame] | 742 | 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 Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 745 | |
John Lo | 1904c47 | 2017-03-10 17:15:22 -0500 | [diff] [blame] | 746 | ship_it0: |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 747 | b0->error = error_node->errors[error0]; |
| 748 | |
| 749 | // verify speculative enqueue |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 750 | 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) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 758 | // Increment any remaining batched stats |
| 759 | if (stats_n_packets > 0) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 760 | { |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 761 | vlib_increment_combined_counter |
| 762 | (vnm->interface_main.combined_sw_if_counters |
| 763 | + VNET_INTERFACE_COUNTER_RX, |
Damjan Marion | 586afd7 | 2017-04-05 19:18:20 +0200 | [diff] [blame] | 764 | thread_index, stats_sw_if_index, stats_n_packets, stats_n_bytes); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 765 | node->runtime_data[0] = stats_sw_if_index; |
| 766 | } |
| 767 | |
| 768 | return from_frame->n_vectors; |
| 769 | } |
| 770 | |
Damjan Marion | 5beecec | 2018-09-10 13:09:21 +0200 | [diff] [blame^] | 771 | VLIB_NODE_FN (ethernet_input_node) (vlib_main_t * vm, |
| 772 | vlib_node_runtime_t * node, |
| 773 | vlib_frame_t * from_frame) |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 774 | { |
| 775 | return ethernet_input_inline (vm, node, from_frame, |
| 776 | ETHERNET_INPUT_VARIANT_ETHERNET); |
| 777 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 778 | |
Damjan Marion | 5beecec | 2018-09-10 13:09:21 +0200 | [diff] [blame^] | 779 | VLIB_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) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 782 | { |
| 783 | return ethernet_input_inline (vm, node, from_frame, |
| 784 | ETHERNET_INPUT_VARIANT_ETHERNET_TYPE); |
| 785 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 786 | |
Damjan Marion | 5beecec | 2018-09-10 13:09:21 +0200 | [diff] [blame^] | 787 | VLIB_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) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 790 | { |
| 791 | return ethernet_input_inline (vm, node, from_frame, |
| 792 | ETHERNET_INPUT_VARIANT_NOT_L2); |
| 793 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 794 | |
| 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. |
| 800 | static subint_config_t * |
| 801 | ethernet_sw_interface_get_config (vnet_main_t * vnm, |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 802 | u32 sw_if_index, |
| 803 | u32 * flags, u32 * unsupported) |
| 804 | { |
| 805 | ethernet_main_t *em = ðernet_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 Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 813 | hi = vnet_get_sup_hw_interface (vnm, sw_if_index); |
| 814 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 815 | if (!hi || (hi->hw_class_index != ethernet_hw_interface_class.index)) |
| 816 | { |
| 817 | *unsupported = 0; |
| 818 | goto done; // non-ethernet interface |
| 819 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 820 | |
| 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 Kotucek | 15ac81c | 2017-06-20 14:00:26 +0200 | [diff] [blame] | 828 | 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 Ranns | 17ff3c1 | 2018-07-04 10:24:24 -0700 | [diff] [blame] | 842 | 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 Kotucek | 15ac81c | 2017-06-20 14:00:26 +0200 | [diff] [blame] | 850 | else if (si->sub.eth.flags.default_sub) |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 851 | { |
| 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 Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 977 | } |
| 978 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 979 | done: |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 980 | return subint; |
| 981 | } |
| 982 | |
Damjan Marion | 5beecec | 2018-09-10 13:09:21 +0200 | [diff] [blame^] | 983 | static clib_error_t * |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 984 | ethernet_sw_interface_up_down (vnet_main_t * vnm, u32 sw_if_index, u32 flags) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 985 | { |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 986 | subint_config_t *subint; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 987 | u32 dummy_flags; |
| 988 | u32 dummy_unsup; |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 989 | clib_error_t *error = 0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 990 | |
| 991 | // Find the config for this subinterface |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 992 | subint = |
| 993 | ethernet_sw_interface_get_config (vnm, sw_if_index, &dummy_flags, |
| 994 | &dummy_unsup); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 995 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 996 | if (subint == 0) |
| 997 | { |
| 998 | // not implemented yet or not ethernet |
| 999 | goto done; |
| 1000 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1001 | |
| 1002 | subint->sw_if_index = |
| 1003 | ((flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) ? sw_if_index : ~0); |
| 1004 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1005 | done: |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1006 | return error; |
| 1007 | } |
| 1008 | |
| 1009 | VNET_SW_INTERFACE_ADMIN_UP_DOWN_FUNCTION (ethernet_sw_interface_up_down); |
| 1010 | |
| 1011 | |
Damjan Marion | 5beecec | 2018-09-10 13:09:21 +0200 | [diff] [blame^] | 1012 | #ifndef CLIB_MARCH_VARIANT |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1013 | // Set the L2/L3 mode for the subinterface |
| 1014 | void |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1015 | ethernet_sw_interface_set_l2_mode (vnet_main_t * vnm, u32 sw_if_index, u32 l2) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1016 | { |
| 1017 | subint_config_t *subint; |
| 1018 | u32 dummy_flags; |
| 1019 | u32 dummy_unsup; |
| 1020 | int is_port; |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1021 | vnet_sw_interface_t *sw = vnet_get_sw_interface (vnm, sw_if_index); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1022 | |
| 1023 | is_port = !(sw->type == VNET_SW_INTERFACE_TYPE_SUB); |
| 1024 | |
| 1025 | // Find the config for this subinterface |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1026 | subint = |
| 1027 | ethernet_sw_interface_get_config (vnm, sw_if_index, &dummy_flags, |
| 1028 | &dummy_unsup); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1029 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1030 | if (subint == 0) |
| 1031 | { |
| 1032 | // unimplemented or not ethernet |
| 1033 | goto done; |
| 1034 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1035 | |
| 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) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1039 | 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 Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1055 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1056 | done: |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1057 | return; |
| 1058 | } |
| 1059 | |
Christian Dechamplain (cdechamp) | 07aecbb | 2016-04-05 10:40:38 -0400 | [diff] [blame] | 1060 | /* |
| 1061 | * Set the L2/L3 mode for the subinterface regardless of port |
| 1062 | */ |
| 1063 | void |
| 1064 | ethernet_sw_interface_set_l2_mode_noport (vnet_main_t * vnm, |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1065 | u32 sw_if_index, u32 l2) |
Christian Dechamplain (cdechamp) | 07aecbb | 2016-04-05 10:40:38 -0400 | [diff] [blame] | 1066 | { |
| 1067 | subint_config_t *subint; |
| 1068 | u32 dummy_flags; |
| 1069 | u32 dummy_unsup; |
| 1070 | |
| 1071 | /* Find the config for this subinterface */ |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1072 | subint = |
| 1073 | ethernet_sw_interface_get_config (vnm, sw_if_index, &dummy_flags, |
| 1074 | &dummy_unsup); |
Christian Dechamplain (cdechamp) | 07aecbb | 2016-04-05 10:40:38 -0400 | [diff] [blame] | 1075 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1076 | if (subint == 0) |
| 1077 | { |
| 1078 | /* unimplemented or not ethernet */ |
| 1079 | goto done; |
| 1080 | } |
Christian Dechamplain (cdechamp) | 07aecbb | 2016-04-05 10:40:38 -0400 | [diff] [blame] | 1081 | |
| 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) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1088 | if (l2) |
| 1089 | { |
| 1090 | subint->flags |= SUBINT_CONFIG_L2; |
| 1091 | } |
| 1092 | else |
| 1093 | { |
| 1094 | subint->flags &= ~SUBINT_CONFIG_L2; |
| 1095 | } |
Christian Dechamplain (cdechamp) | 07aecbb | 2016-04-05 10:40:38 -0400 | [diff] [blame] | 1096 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1097 | done: |
Christian Dechamplain (cdechamp) | 07aecbb | 2016-04-05 10:40:38 -0400 | [diff] [blame] | 1098 | return; |
| 1099 | } |
Damjan Marion | 5beecec | 2018-09-10 13:09:21 +0200 | [diff] [blame^] | 1100 | #endif |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1101 | |
| 1102 | static clib_error_t * |
| 1103 | ethernet_sw_interface_add_del (vnet_main_t * vnm, |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1104 | u32 sw_if_index, u32 is_create) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1105 | { |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1106 | clib_error_t *error = 0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1107 | subint_config_t *subint; |
| 1108 | u32 match_flags; |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1109 | u32 unsupported = 0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1110 | |
| 1111 | // Find the config for this subinterface |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1112 | subint = |
| 1113 | ethernet_sw_interface_get_config (vnm, sw_if_index, &match_flags, |
| 1114 | &unsupported); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1115 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1116 | if (subint == 0) |
| 1117 | { |
| 1118 | // not implemented yet or not ethernet |
| 1119 | if (unsupported) |
| 1120 | { |
Damjan Marion | 607de1a | 2016-08-16 22:53:54 +0200 | [diff] [blame] | 1121 | // this is the NYI case |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1122 | error = clib_error_return (0, "not implemented yet"); |
| 1123 | } |
| 1124 | goto done; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1125 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1126 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1127 | if (!is_create) |
| 1128 | { |
| 1129 | subint->flags = 0; |
| 1130 | return error; |
| 1131 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1132 | |
| 1133 | // Initialize the subint |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1134 | 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 Ranns | 17ff3c1 | 2018-07-04 10:24:24 -0700 | [diff] [blame] | 1141 | // Note that config is L3 by default |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1142 | subint->flags = SUBINT_CONFIG_VALID | match_flags; |
| 1143 | subint->sw_if_index = ~0; // because interfaces are initially down |
| 1144 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1145 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1146 | done: |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1147 | return error; |
| 1148 | } |
| 1149 | |
| 1150 | VNET_SW_INTERFACE_ADD_DEL_FUNCTION (ethernet_sw_interface_add_del); |
| 1151 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1152 | static char *ethernet_error_strings[] = { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1153 | #define ethernet_error(n,c,s) s, |
| 1154 | #include "error.def" |
| 1155 | #undef ethernet_error |
| 1156 | }; |
| 1157 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1158 | /* *INDENT-OFF* */ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1159 | VLIB_REGISTER_NODE (ethernet_input_node) = { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1160 | .name = "ethernet-input", |
| 1161 | /* Takes a vector of packets. */ |
| 1162 | .vector_size = sizeof (u32), |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1163 | .n_errors = ETHERNET_N_ERROR, |
| 1164 | .error_strings = ethernet_error_strings, |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1165 | .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 Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1171 | .format_buffer = format_ethernet_header_with_length, |
| 1172 | .format_trace = format_ethernet_input_trace, |
| 1173 | .unformat_buffer = unformat_ethernet_header, |
| 1174 | }; |
| 1175 | |
Damjan Marion | 5beecec | 2018-09-10 13:09:21 +0200 | [diff] [blame^] | 1176 | VLIB_REGISTER_NODE (ethernet_input_type_node) = { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1177 | .name = "ethernet-input-type", |
| 1178 | /* Takes a vector of packets. */ |
| 1179 | .vector_size = sizeof (u32), |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1180 | .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 Marion | 5beecec | 2018-09-10 13:09:21 +0200 | [diff] [blame^] | 1188 | VLIB_REGISTER_NODE (ethernet_input_not_l2_node) = { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1189 | .name = "ethernet-input-not-l2", |
| 1190 | /* Takes a vector of packets. */ |
| 1191 | .vector_size = sizeof (u32), |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1192 | .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) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1199 | /* *INDENT-ON* */ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1200 | |
Damjan Marion | 5beecec | 2018-09-10 13:09:21 +0200 | [diff] [blame^] | 1201 | #ifndef CLIB_MARCH_VARIANT |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1202 | void |
| 1203 | ethernet_set_rx_redirect (vnet_main_t * vnm, |
| 1204 | vnet_hw_interface_t * hi, u32 enable) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1205 | { |
| 1206 | // Insure all packets go to ethernet-input (i.e. untagged ipv4 packets |
| 1207 | // don't go directly to ip4-input) |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1208 | vnet_hw_interface_rx_redirect_to_node |
| 1209 | (vnm, hi->hw_if_index, enable ? ethernet_input_node.index : ~0); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1210 | } |
| 1211 | |
| 1212 | |
| 1213 | /* |
| 1214 | * Initialization and registration for the next_by_ethernet structure |
| 1215 | */ |
| 1216 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1217 | clib_error_t * |
| 1218 | next_by_ethertype_init (next_by_ethertype_t * l3_next) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1219 | { |
| 1220 | l3_next->input_next_by_type = sparse_vec_new |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1221 | ( /* elt bytes */ sizeof (l3_next->input_next_by_type[0]), |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1222 | /* bits in index */ BITS (((ethernet_header_t *) 0)->type)); |
| 1223 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1224 | 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 Marion | 607de1a | 2016-08-16 22:53:54 +0200 | [diff] [blame] | 1233 | /* |
| 1234 | * Make sure we don't wipe out an ethernet registration by mistake |
Dave Barach | 1f49ed6 | 2016-02-24 11:29:06 -0500 | [diff] [blame] | 1235 | * Can happen if init function ordering constraints are missing. |
| 1236 | */ |
| 1237 | if (CLIB_DEBUG > 0) |
| 1238 | { |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1239 | ethernet_main_t *em = ðernet_main; |
| 1240 | ASSERT (em->next_by_ethertype_register_called == 0); |
Dave Barach | 1f49ed6 | 2016-02-24 11:29:06 -0500 | [diff] [blame] | 1241 | } |
| 1242 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1243 | return 0; |
| 1244 | } |
| 1245 | |
| 1246 | // Add an ethertype -> next index mapping to the structure |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1247 | clib_error_t * |
| 1248 | next_by_ethertype_register (next_by_ethertype_t * l3_next, |
| 1249 | u32 ethertype, u32 next_index) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1250 | { |
| 1251 | u32 i; |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1252 | u16 *n; |
| 1253 | ethernet_main_t *em = ðernet_main; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1254 | |
Dave Barach | 1f49ed6 | 2016-02-24 11:29:06 -0500 | [diff] [blame] | 1255 | if (CLIB_DEBUG > 0) |
| 1256 | { |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1257 | ethernet_main_t *em = ðernet_main; |
Dave Barach | 1f49ed6 | 2016-02-24 11:29:06 -0500 | [diff] [blame] | 1258 | em->next_by_ethertype_register_called = 1; |
| 1259 | } |
| 1260 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1261 | /* 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) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1269 | l3_next-> |
| 1270 | sparse_index_by_input_next_index[l3_next->input_next_by_type[i]] = i; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1271 | |
| 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) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1274 | 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 Ranns | 0f26c5a | 2017-03-01 15:12:11 -0800 | [diff] [blame] | 1285 | else if (ethertype == ETHERNET_TYPE_MPLS) |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1286 | { |
| 1287 | l3_next->input_next_mpls = next_index; |
| 1288 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1289 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1290 | return 0; |
| 1291 | } |
| 1292 | |
| 1293 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1294 | static clib_error_t * |
| 1295 | ethernet_input_init (vlib_main_t * vm) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1296 | { |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1297 | ethernet_main_t *em = ðernet_main; |
| 1298 | __attribute__ ((unused)) vlan_table_t *invalid_vlan_table; |
| 1299 | __attribute__ ((unused)) qinq_table_t *invalid_qinq_table; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1300 | |
| 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) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1306 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1307 | // Initialize pools and vector for vlan parsing |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1308 | vec_validate (em->main_intfs, 10); // 10 main interfaces |
| 1309 | pool_alloc (em->vlan_pool, 10); |
| 1310 | pool_alloc (em->qinq_pool, 1); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1311 | |
| 1312 | // The first vlan pool will always be reserved for an invalid table |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1313 | pool_get (em->vlan_pool, invalid_vlan_table); // first id = 0 |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1314 | // The first qinq pool will always be reserved for an invalid table |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1315 | pool_get (em->qinq_pool, invalid_qinq_table); // first id = 0 |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1316 | |
| 1317 | return 0; |
| 1318 | } |
| 1319 | |
| 1320 | VLIB_INIT_FUNCTION (ethernet_input_init); |
| 1321 | |
| 1322 | void |
| 1323 | ethernet_register_input_type (vlib_main_t * vm, |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1324 | ethernet_type_t type, u32 node_index) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1325 | { |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1326 | ethernet_main_t *em = ðernet_main; |
| 1327 | ethernet_type_info_t *ti; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1328 | u32 i; |
| 1329 | |
| 1330 | { |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1331 | clib_error_t *error = vlib_call_init_function (vm, ethernet_init); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1332 | 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) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1338 | 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 Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1341 | ASSERT (i == ti->next_index); |
| 1342 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1343 | i = vlib_node_add_next (vm, ethernet_input_not_l2_node.index, node_index); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1344 | 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 | |
| 1353 | void |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1354 | ethernet_register_l2_input (vlib_main_t * vm, u32 node_index) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1355 | { |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1356 | ethernet_main_t *em = ðernet_main; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1357 | u32 i; |
| 1358 | |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1359 | em->l2_next = |
| 1360 | vlib_node_add_next (vm, ethernet_input_node.index, node_index); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1361 | |
Damjan Marion | 607de1a | 2016-08-16 22:53:54 +0200 | [diff] [blame] | 1362 | /* |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1363 | * 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) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1369 | i = vlib_node_add_next (vm, ethernet_input_not_l2_node.index, node_index); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1370 | ASSERT (i == em->l2_next); |
| 1371 | } |
| 1372 | |
| 1373 | // Register a next node for L3 redirect, and enable L3 redirect |
| 1374 | void |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1375 | ethernet_register_l3_redirect (vlib_main_t * vm, u32 node_index) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1376 | { |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1377 | ethernet_main_t *em = ðernet_main; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1378 | u32 i; |
| 1379 | |
| 1380 | em->redirect_l3 = 1; |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1381 | em->redirect_l3_next = vlib_node_add_next (vm, |
| 1382 | ethernet_input_node.index, |
| 1383 | node_index); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1384 | /* |
| 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); |
jerryian | ff82ed6 | 2016-12-05 17:13:00 +0800 | [diff] [blame] | 1397 | |
| 1398 | i = vlib_node_add_next (vm, ethernet_input_not_l2_node.index, node_index); |
| 1399 | |
| 1400 | ASSERT (i == em->redirect_l3_next); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1401 | } |
Damjan Marion | 5beecec | 2018-09-10 13:09:21 +0200 | [diff] [blame^] | 1402 | #endif |
Keith Burns (alagalah) | e70dcc8 | 2016-08-15 18:33:19 -0700 | [diff] [blame] | 1403 | |
| 1404 | /* |
| 1405 | * fd.io coding-style-patch-verification: ON |
| 1406 | * |
| 1407 | * Local Variables: |
| 1408 | * eval: (c-set-style "gnu") |
| 1409 | * End: |
| 1410 | */ |