| /* |
| * Copyright (c) 2015 Cisco and/or its affiliates. |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at: |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| /* |
| * interface_output.c: interface output node |
| * |
| * Copyright (c) 2008 Eliot Dresselhaus |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining |
| * a copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sublicense, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be |
| * included in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE |
| * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
| * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
| * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| #include <vnet/vnet.h> |
| #include <vnet/ip/icmp46_packet.h> |
| #include <vnet/ethernet/packet.h> |
| #include <vnet/ip/format.h> |
| #include <vnet/ip/ip4.h> |
| #include <vnet/ip/ip6.h> |
| #include <vnet/udp/udp_packet.h> |
| #include <vnet/feature/feature.h> |
| #include <vnet/classify/pcap_classify.h> |
| #include <vnet/interface_output.h> |
| #include <vppinfra/vector/mask_compare.h> |
| #include <vppinfra/vector/compress.h> |
| |
| typedef struct |
| { |
| u32 sw_if_index; |
| u32 flags; |
| u8 data[128 - 2 * sizeof (u32)]; |
| } |
| interface_output_trace_t; |
| |
| #ifndef CLIB_MARCH_VARIANT |
| u8 * |
| format_vnet_interface_output_trace (u8 * s, va_list * va) |
| { |
| CLIB_UNUSED (vlib_main_t * vm) = va_arg (*va, vlib_main_t *); |
| vlib_node_t *node = va_arg (*va, vlib_node_t *); |
| interface_output_trace_t *t = va_arg (*va, interface_output_trace_t *); |
| vnet_main_t *vnm = vnet_get_main (); |
| vnet_sw_interface_t *si; |
| u32 indent; |
| |
| if (t->sw_if_index != (u32) ~ 0) |
| { |
| indent = format_get_indent (s); |
| |
| if (pool_is_free_index |
| (vnm->interface_main.sw_interfaces, t->sw_if_index)) |
| { |
| /* the interface may have been deleted by the time the trace is printed */ |
| s = format (s, "sw_if_index: %d ", t->sw_if_index); |
| } |
| else |
| { |
| si = vnet_get_sw_interface (vnm, t->sw_if_index); |
| s = |
| format (s, "%U ", format_vnet_sw_interface_name, vnm, si, |
| t->flags); |
| } |
| s = |
| format (s, "\n%U%U", format_white_space, indent, |
| node->format_buffer ? node->format_buffer : format_hex_bytes, |
| t->data, sizeof (t->data)); |
| } |
| return s; |
| } |
| #endif /* CLIB_MARCH_VARIANT */ |
| |
| static void |
| vnet_interface_output_trace (vlib_main_t * vm, |
| vlib_node_runtime_t * node, |
| vlib_frame_t * frame, uword n_buffers) |
| { |
| u32 n_left, *from; |
| |
| n_left = n_buffers; |
| from = vlib_frame_vector_args (frame); |
| |
| while (n_left >= 4) |
| { |
| u32 bi0, bi1; |
| vlib_buffer_t *b0, *b1; |
| interface_output_trace_t *t0, *t1; |
| |
| /* Prefetch next iteration. */ |
| vlib_prefetch_buffer_with_index (vm, from[2], LOAD); |
| vlib_prefetch_buffer_with_index (vm, from[3], LOAD); |
| |
| bi0 = from[0]; |
| bi1 = from[1]; |
| |
| b0 = vlib_get_buffer (vm, bi0); |
| b1 = vlib_get_buffer (vm, bi1); |
| |
| if (b0->flags & VLIB_BUFFER_IS_TRACED) |
| { |
| t0 = vlib_add_trace (vm, node, b0, sizeof (t0[0])); |
| t0->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_TX]; |
| t0->flags = b0->flags; |
| clib_memcpy_fast (t0->data, vlib_buffer_get_current (b0), |
| sizeof (t0->data)); |
| } |
| if (b1->flags & VLIB_BUFFER_IS_TRACED) |
| { |
| t1 = vlib_add_trace (vm, node, b1, sizeof (t1[0])); |
| t1->sw_if_index = vnet_buffer (b1)->sw_if_index[VLIB_TX]; |
| t1->flags = b1->flags; |
| clib_memcpy_fast (t1->data, vlib_buffer_get_current (b1), |
| sizeof (t1->data)); |
| } |
| from += 2; |
| n_left -= 2; |
| } |
| |
| while (n_left >= 1) |
| { |
| u32 bi0; |
| vlib_buffer_t *b0; |
| interface_output_trace_t *t0; |
| |
| bi0 = from[0]; |
| |
| b0 = vlib_get_buffer (vm, bi0); |
| |
| if (b0->flags & VLIB_BUFFER_IS_TRACED) |
| { |
| t0 = vlib_add_trace (vm, node, b0, sizeof (t0[0])); |
| t0->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_TX]; |
| t0->flags = b0->flags; |
| clib_memcpy_fast (t0->data, vlib_buffer_get_current (b0), |
| sizeof (t0->data)); |
| } |
| from += 1; |
| n_left -= 1; |
| } |
| } |
| |
| static_always_inline void |
| vnet_interface_output_handle_offload (vlib_main_t *vm, vlib_buffer_t *b) |
| { |
| vnet_calc_checksums_inline (vm, b, b->flags & VNET_BUFFER_F_IS_IP4, |
| b->flags & VNET_BUFFER_F_IS_IP6); |
| } |
| |
| static_always_inline uword |
| vnet_interface_output_node_inline (vlib_main_t *vm, u32 sw_if_index, |
| vlib_combined_counter_main_t *ccm, |
| vlib_buffer_t **b, u32 config_index, u8 arc, |
| u32 n_left, int processing_level) |
| { |
| u32 n_bytes = 0; |
| u32 n_bytes0, n_bytes1, n_bytes2, n_bytes3; |
| u32 ti = vm->thread_index; |
| |
| while (n_left >= 8) |
| { |
| u32 or_flags; |
| |
| /* Prefetch next iteration. */ |
| vlib_prefetch_buffer_header (b[4], LOAD); |
| vlib_prefetch_buffer_header (b[5], LOAD); |
| vlib_prefetch_buffer_header (b[6], LOAD); |
| vlib_prefetch_buffer_header (b[7], LOAD); |
| |
| if (processing_level >= 1) |
| or_flags = b[0]->flags | b[1]->flags | b[2]->flags | b[3]->flags; |
| |
| /* Be grumpy about zero length buffers for benefit of |
| driver tx function. */ |
| ASSERT (b[0]->current_length > 0); |
| ASSERT (b[1]->current_length > 0); |
| ASSERT (b[2]->current_length > 0); |
| ASSERT (b[3]->current_length > 0); |
| |
| n_bytes += n_bytes0 = vlib_buffer_length_in_chain (vm, b[0]); |
| n_bytes += n_bytes1 = vlib_buffer_length_in_chain (vm, b[1]); |
| n_bytes += n_bytes2 = vlib_buffer_length_in_chain (vm, b[2]); |
| n_bytes += n_bytes3 = vlib_buffer_length_in_chain (vm, b[3]); |
| |
| if (processing_level >= 2) |
| { |
| u32 tx_swif0, tx_swif1, tx_swif2, tx_swif3; |
| tx_swif0 = vnet_buffer (b[0])->sw_if_index[VLIB_TX]; |
| tx_swif1 = vnet_buffer (b[1])->sw_if_index[VLIB_TX]; |
| tx_swif2 = vnet_buffer (b[2])->sw_if_index[VLIB_TX]; |
| tx_swif3 = vnet_buffer (b[3])->sw_if_index[VLIB_TX]; |
| |
| /* update vlan subif tx counts, if required */ |
| if (PREDICT_FALSE (tx_swif0 != sw_if_index)) |
| vlib_increment_combined_counter (ccm, ti, tx_swif0, 1, n_bytes0); |
| |
| if (PREDICT_FALSE (tx_swif1 != sw_if_index)) |
| vlib_increment_combined_counter (ccm, ti, tx_swif1, 1, n_bytes1); |
| |
| if (PREDICT_FALSE (tx_swif2 != sw_if_index)) |
| vlib_increment_combined_counter (ccm, ti, tx_swif2, 1, n_bytes2); |
| |
| if (PREDICT_FALSE (tx_swif3 != sw_if_index)) |
| vlib_increment_combined_counter (ccm, ti, tx_swif3, 1, n_bytes3); |
| |
| if (PREDICT_FALSE (config_index != ~0)) |
| { |
| vnet_buffer (b[0])->feature_arc_index = arc; |
| b[0]->current_config_index = config_index; |
| vnet_buffer (b[1])->feature_arc_index = arc; |
| b[1]->current_config_index = config_index; |
| vnet_buffer (b[2])->feature_arc_index = arc; |
| b[2]->current_config_index = config_index; |
| vnet_buffer (b[3])->feature_arc_index = arc; |
| b[3]->current_config_index = config_index; |
| } |
| } |
| |
| if (processing_level >= 1 && (or_flags & VNET_BUFFER_F_OFFLOAD)) |
| { |
| vnet_interface_output_handle_offload (vm, b[0]); |
| vnet_interface_output_handle_offload (vm, b[1]); |
| vnet_interface_output_handle_offload (vm, b[2]); |
| vnet_interface_output_handle_offload (vm, b[3]); |
| } |
| |
| n_left -= 4; |
| b += 4; |
| } |
| |
| while (n_left) |
| { |
| /* Be grumpy about zero length buffers for benefit of |
| driver tx function. */ |
| ASSERT (b[0]->current_length > 0); |
| |
| n_bytes += n_bytes0 = vlib_buffer_length_in_chain (vm, b[0]); |
| |
| if (processing_level >= 2) |
| { |
| u32 tx_swif0 = vnet_buffer (b[0])->sw_if_index[VLIB_TX]; |
| |
| if (PREDICT_FALSE (config_index != ~0)) |
| { |
| vnet_buffer (b[0])->feature_arc_index = arc; |
| b[0]->current_config_index = config_index; |
| } |
| |
| if (PREDICT_FALSE (tx_swif0 != sw_if_index)) |
| vlib_increment_combined_counter (ccm, ti, tx_swif0, 1, n_bytes0); |
| } |
| |
| if (processing_level >= 1) |
| vnet_interface_output_handle_offload (vm, b[0]); |
| |
| n_left -= 1; |
| b += 1; |
| } |
| |
| return n_bytes; |
| } |
| |
| static_always_inline void |
| vnet_interface_pcap_tx_trace (vlib_main_t *vm, vlib_node_runtime_t *node, |
| vlib_frame_t *frame, int in_interface_ouput) |
| { |
| vnet_main_t *vnm = vnet_get_main (); |
| u32 n_left_from, *from; |
| u32 sw_if_index = ~0, hw_if_index = ~0; |
| vnet_pcap_t *pp = &vnm->pcap; |
| |
| if (PREDICT_TRUE (pp->pcap_tx_enable == 0)) |
| return; |
| |
| if (in_interface_ouput) |
| { |
| /* interface-output is called right before interface-output-template. |
| * We only want to capture packets here if there is a per-interface |
| * filter, in case it matches the sub-interface sw_if_index. |
| * If there is no per-interface filter configured, let the |
| * interface-output-template node deal with it */ |
| if (pp->pcap_sw_if_index == 0) |
| return; |
| } |
| else |
| { |
| vnet_interface_output_runtime_t *rt = (void *) node->runtime_data; |
| sw_if_index = rt->sw_if_index; |
| } |
| |
| n_left_from = frame->n_vectors; |
| from = vlib_frame_vector_args (frame); |
| |
| while (n_left_from > 0) |
| { |
| u32 bi0 = from[0]; |
| vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0); |
| from++; |
| n_left_from--; |
| |
| if (in_interface_ouput) |
| { |
| const u32 sii = vnet_buffer (b0)->sw_if_index[VLIB_TX]; |
| if (PREDICT_FALSE (sii != sw_if_index)) |
| { |
| const vnet_hw_interface_t *hi = |
| vnet_get_sup_hw_interface (vnm, sii); |
| hw_if_index = hi->sw_if_index; |
| sw_if_index = sii; |
| } |
| if (hw_if_index == sw_if_index) |
| continue; /* defer to interface-output-template */ |
| } |
| |
| if (vnet_is_packet_pcaped (pp, b0, sw_if_index)) |
| pcap_add_buffer (&pp->pcap_main, vm, bi0, pp->max_bytes_per_pkt); |
| } |
| } |
| |
| static_always_inline void |
| store_tx_frame_scalar_data (vnet_hw_if_output_node_runtime_t *r, |
| vnet_hw_if_tx_frame_t *tf) |
| { |
| if (r) |
| clib_memcpy_fast (tf, &r->frame, sizeof (vnet_hw_if_tx_frame_t)); |
| } |
| |
| static_always_inline void |
| enqueu_to_tx_node (vlib_main_t *vm, vlib_node_runtime_t *node, |
| vnet_hw_interface_t *hi, u32 *from, u32 n_vectors) |
| { |
| u32 next_index = VNET_INTERFACE_OUTPUT_NEXT_TX; |
| vnet_hw_if_output_node_runtime_t *r = 0; |
| u32 n_free, n_copy, *to; |
| vnet_hw_if_tx_frame_t *tf; |
| vlib_frame_t *f; |
| |
| ASSERT (n_vectors <= VLIB_FRAME_SIZE); |
| |
| if (hi->output_node_thread_runtimes) |
| r = vec_elt_at_index (hi->output_node_thread_runtimes, vm->thread_index); |
| |
| f = vlib_get_next_frame_internal (vm, node, next_index, 0); |
| tf = vlib_frame_scalar_args (f); |
| |
| if (f->n_vectors > 0 && (r == 0 || tf->queue_id == r->frame.queue_id)) |
| { |
| /* append current next frame */ |
| n_free = VLIB_FRAME_SIZE - f->n_vectors; |
| n_copy = clib_min (n_vectors, n_free); |
| n_vectors -= n_copy; |
| to = vlib_frame_vector_args (f); |
| to += f->n_vectors; |
| } |
| else |
| { |
| if (f->n_vectors > 0) |
| { |
| /* current frame doesn't fit - grab empty one */ |
| f = vlib_get_next_frame_internal (vm, node, next_index, 1); |
| tf = vlib_frame_scalar_args (f); |
| } |
| |
| /* empty frame - store scalar data */ |
| store_tx_frame_scalar_data (r, tf); |
| to = vlib_frame_vector_args (f); |
| n_free = VLIB_FRAME_SIZE; |
| n_copy = n_vectors; |
| n_vectors = 0; |
| } |
| |
| vlib_buffer_copy_indices (to, from, n_copy); |
| vlib_put_next_frame (vm, node, next_index, n_free - n_copy); |
| |
| if (n_vectors == 0) |
| return; |
| |
| /* we have more indices to store, take empty frame */ |
| from += n_copy; |
| f = vlib_get_next_frame_internal (vm, node, next_index, 1); |
| store_tx_frame_scalar_data (r, vlib_frame_scalar_args (f)); |
| vlib_buffer_copy_indices (vlib_frame_vector_args (f), from, n_vectors); |
| vlib_put_next_frame (vm, node, next_index, VLIB_FRAME_SIZE - n_vectors); |
| } |
| |
| VLIB_NODE_FN (vnet_interface_output_node) |
| (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame) |
| { |
| vnet_main_t *vnm = vnet_get_main (); |
| vnet_interface_main_t *im = &vnm->interface_main; |
| vlib_combined_counter_main_t *ccm; |
| vnet_hw_interface_t *hi; |
| vnet_sw_interface_t *si; |
| vnet_interface_output_runtime_t *rt = (void *) node->runtime_data; |
| vlib_buffer_t *bufs[VLIB_FRAME_SIZE]; |
| u32 n_bytes, n_buffers = frame->n_vectors; |
| u32 config_index = ~0; |
| u32 sw_if_index = rt->sw_if_index; |
| u32 next_index = VNET_INTERFACE_OUTPUT_NEXT_TX; |
| u32 ti = vm->thread_index; |
| u8 arc = im->output_feature_arc_index; |
| int arc_or_subif = 0; |
| int do_tx_offloads = 0; |
| u32 *from; |
| |
| if (node->flags & VLIB_NODE_FLAG_TRACE) |
| vnet_interface_output_trace (vm, node, frame, n_buffers); |
| |
| from = vlib_frame_vector_args (frame); |
| |
| if (rt->is_deleted) |
| return vlib_error_drop_buffers ( |
| vm, node, from, |
| /* buffer stride */ 1, n_buffers, VNET_INTERFACE_OUTPUT_NEXT_DROP, |
| node->node_index, VNET_INTERFACE_OUTPUT_ERROR_INTERFACE_DELETED); |
| |
| vnet_interface_pcap_tx_trace (vm, node, frame, 0 /* in_interface_ouput */); |
| |
| vlib_get_buffers (vm, from, bufs, n_buffers); |
| |
| si = vnet_get_sw_interface (vnm, sw_if_index); |
| hi = vnet_get_sup_hw_interface (vnm, sw_if_index); |
| |
| if (!(si->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) || |
| !(hi->flags & VNET_HW_INTERFACE_FLAG_LINK_UP)) |
| { |
| vlib_simple_counter_main_t *cm; |
| |
| cm = vec_elt_at_index (vnm->interface_main.sw_if_counters, |
| VNET_INTERFACE_COUNTER_TX_ERROR); |
| vlib_increment_simple_counter (cm, ti, sw_if_index, n_buffers); |
| |
| return vlib_error_drop_buffers ( |
| vm, node, from, |
| /* buffer stride */ 1, n_buffers, VNET_INTERFACE_OUTPUT_NEXT_DROP, |
| node->node_index, VNET_INTERFACE_OUTPUT_ERROR_INTERFACE_DOWN); |
| } |
| |
| /* interface-output feature arc handling */ |
| if (PREDICT_FALSE (vnet_have_features (arc, sw_if_index))) |
| { |
| vnet_feature_config_main_t *fcm; |
| fcm = vnet_feature_get_config_main (arc); |
| config_index = vnet_get_feature_config_index (arc, sw_if_index); |
| vnet_get_config_data (&fcm->config_main, &config_index, &next_index, 0); |
| arc_or_subif = 1; |
| } |
| else if (hash_elts (hi->sub_interface_sw_if_index_by_id)) |
| arc_or_subif = 1; |
| |
| ccm = im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_TX; |
| |
| /* if not all three flags IP4_,TCP_,UDP_CKSUM set, do compute them |
| * here before sending to the interface */ |
| if ((hi->caps & VNET_HW_INTERFACE_CAP_SUPPORTS_TX_CKSUM) != |
| VNET_HW_INTERFACE_CAP_SUPPORTS_TX_CKSUM) |
| do_tx_offloads = 1; |
| |
| if (do_tx_offloads == 0 && arc_or_subif == 0) |
| n_bytes = vnet_interface_output_node_inline ( |
| vm, sw_if_index, ccm, bufs, config_index, arc, n_buffers, 0); |
| else if (do_tx_offloads == 1 && arc_or_subif == 0) |
| n_bytes = vnet_interface_output_node_inline ( |
| vm, sw_if_index, ccm, bufs, config_index, arc, n_buffers, 1); |
| else |
| n_bytes = vnet_interface_output_node_inline ( |
| vm, sw_if_index, ccm, bufs, config_index, arc, n_buffers, 2); |
| |
| from = vlib_frame_vector_args (frame); |
| if (PREDICT_TRUE (next_index == VNET_INTERFACE_OUTPUT_NEXT_TX)) |
| { |
| enqueu_to_tx_node (vm, node, hi, from, frame->n_vectors); |
| } |
| else |
| { |
| vlib_buffer_enqueue_to_single_next (vm, node, from, next_index, |
| frame->n_vectors); |
| } |
| |
| /* Update main interface stats. */ |
| vlib_increment_combined_counter (ccm, ti, sw_if_index, n_buffers, n_bytes); |
| return n_buffers; |
| } |
| |
| VLIB_REGISTER_NODE (vnet_interface_output_node) = { |
| .name = "interface-output-template", |
| .vector_size = sizeof (u32), |
| }; |
| |
| /* Use buffer's sw_if_index[VNET_TX] to choose output interface. */ |
| VLIB_NODE_FN (vnet_per_buffer_interface_output_node) (vlib_main_t * vm, |
| vlib_node_runtime_t * |
| node, |
| vlib_frame_t * frame) |
| { |
| vnet_main_t *vnm = vnet_get_main (); |
| u32 n_left_to_next, *from, *to_next; |
| u32 n_left_from, next_index; |
| |
| vnet_interface_pcap_tx_trace (vm, node, frame, 1 /* in_interface_ouput */); |
| |
| n_left_from = frame->n_vectors; |
| |
| from = vlib_frame_vector_args (frame); |
| next_index = node->cached_next_index; |
| |
| while (n_left_from > 0) |
| { |
| vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); |
| |
| while (n_left_from >= 4 && n_left_to_next >= 2) |
| { |
| u32 bi0, bi1, next0, next1; |
| vlib_buffer_t *b0, *b1; |
| vnet_hw_interface_t *hi0, *hi1; |
| |
| /* Prefetch next iteration. */ |
| vlib_prefetch_buffer_with_index (vm, from[2], LOAD); |
| vlib_prefetch_buffer_with_index (vm, from[3], LOAD); |
| |
| bi0 = from[0]; |
| bi1 = from[1]; |
| to_next[0] = bi0; |
| to_next[1] = bi1; |
| from += 2; |
| to_next += 2; |
| n_left_to_next -= 2; |
| n_left_from -= 2; |
| |
| b0 = vlib_get_buffer (vm, bi0); |
| b1 = vlib_get_buffer (vm, bi1); |
| |
| hi0 = |
| vnet_get_sup_hw_interface (vnm, |
| vnet_buffer (b0)->sw_if_index |
| [VLIB_TX]); |
| hi1 = |
| vnet_get_sup_hw_interface (vnm, |
| vnet_buffer (b1)->sw_if_index |
| [VLIB_TX]); |
| |
| next0 = hi0->output_node_next_index; |
| next1 = hi1->output_node_next_index; |
| |
| vlib_validate_buffer_enqueue_x2 (vm, node, next_index, to_next, |
| n_left_to_next, bi0, bi1, next0, |
| next1); |
| } |
| |
| while (n_left_from > 0 && n_left_to_next > 0) |
| { |
| u32 bi0, next0; |
| vlib_buffer_t *b0; |
| vnet_hw_interface_t *hi0; |
| |
| bi0 = from[0]; |
| to_next[0] = bi0; |
| from += 1; |
| to_next += 1; |
| n_left_to_next -= 1; |
| n_left_from -= 1; |
| |
| b0 = vlib_get_buffer (vm, bi0); |
| |
| hi0 = |
| vnet_get_sup_hw_interface (vnm, |
| vnet_buffer (b0)->sw_if_index |
| [VLIB_TX]); |
| |
| next0 = hi0->output_node_next_index; |
| |
| vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, |
| n_left_to_next, bi0, next0); |
| } |
| |
| vlib_put_next_frame (vm, node, next_index, n_left_to_next); |
| } |
| |
| return frame->n_vectors; |
| } |
| |
| typedef struct vnet_error_trace_t_ |
| { |
| u32 sw_if_index; |
| i8 details_valid; |
| u8 is_ip6; |
| u8 pad[2]; |
| u16 mactype; |
| ip46_address_t src, dst; |
| } vnet_error_trace_t; |
| |
| static u8 * |
| format_vnet_error_trace (u8 * s, va_list * va) |
| { |
| CLIB_UNUSED (vlib_main_t * vm) = va_arg (*va, vlib_main_t *); |
| CLIB_UNUSED (vlib_node_t * node) = va_arg (*va, vlib_node_t *); |
| vnet_error_trace_t *t = va_arg (*va, vnet_error_trace_t *); |
| |
| /* Normal, non-catchup trace */ |
| if (t->details_valid == 0) |
| { |
| s = format (s, "rx:%U", format_vnet_sw_if_index_name, |
| vnet_get_main (), t->sw_if_index); |
| } |
| else if (t->details_valid == 1) |
| { |
| /* The trace capture code didn't understant the mactype */ |
| s = format (s, "mactype 0x%4x (not decoded)", t->mactype); |
| } |
| else if (t->details_valid == 2) |
| { |
| /* Dump the src/dst addresses */ |
| if (t->is_ip6 == 0) |
| s = format (s, "IP4: %U -> %U", |
| format_ip4_address, &t->src.ip4, |
| format_ip4_address, &t->dst.ip4); |
| else |
| s = format (s, "IP6: %U -> %U", |
| format_ip6_address, &t->src.ip6, |
| format_ip6_address, &t->dst.ip6); |
| } |
| return s; |
| } |
| |
| static void |
| interface_trace_buffers (vlib_main_t * vm, |
| vlib_node_runtime_t * node, vlib_frame_t * frame) |
| { |
| u32 n_left, *buffers; |
| |
| buffers = vlib_frame_vector_args (frame); |
| n_left = frame->n_vectors; |
| |
| while (n_left >= 4) |
| { |
| u32 bi0, bi1; |
| vlib_buffer_t *b0, *b1; |
| vnet_error_trace_t *t0, *t1; |
| |
| /* Prefetch next iteration. */ |
| vlib_prefetch_buffer_with_index (vm, buffers[2], LOAD); |
| vlib_prefetch_buffer_with_index (vm, buffers[3], LOAD); |
| |
| bi0 = buffers[0]; |
| bi1 = buffers[1]; |
| |
| b0 = vlib_get_buffer (vm, bi0); |
| b1 = vlib_get_buffer (vm, bi1); |
| |
| if (b0->flags & VLIB_BUFFER_IS_TRACED) |
| { |
| t0 = vlib_add_trace (vm, node, b0, |
| STRUCT_OFFSET_OF (vnet_error_trace_t, pad)); |
| t0->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; |
| t0->details_valid = 0; |
| } |
| if (b1->flags & VLIB_BUFFER_IS_TRACED) |
| { |
| t1 = vlib_add_trace (vm, node, b1, |
| STRUCT_OFFSET_OF (vnet_error_trace_t, pad)); |
| t1->sw_if_index = vnet_buffer (b1)->sw_if_index[VLIB_RX]; |
| t1->details_valid = 0; |
| } |
| buffers += 2; |
| n_left -= 2; |
| } |
| |
| while (n_left >= 1) |
| { |
| u32 bi0; |
| vlib_buffer_t *b0; |
| vnet_error_trace_t *t0; |
| |
| bi0 = buffers[0]; |
| |
| b0 = vlib_get_buffer (vm, bi0); |
| |
| if (b0->flags & VLIB_BUFFER_IS_TRACED) |
| { |
| t0 = vlib_add_trace (vm, node, b0, |
| STRUCT_OFFSET_OF (vnet_error_trace_t, pad)); |
| t0->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; |
| t0->details_valid = 0; |
| } |
| buffers += 1; |
| n_left -= 1; |
| } |
| } |
| |
| typedef enum |
| { |
| VNET_ERROR_DISPOSITION_DROP, |
| VNET_ERROR_DISPOSITION_PUNT, |
| VNET_ERROR_N_DISPOSITION, |
| } vnet_error_disposition_t; |
| |
| static void |
| drop_catchup_trace (vlib_main_t * vm, |
| vlib_node_runtime_t * node, vlib_buffer_t * b) |
| { |
| /* Can we safely rewind the buffer? If not, fagedaboudit */ |
| if (b->flags & VNET_BUFFER_F_L2_HDR_OFFSET_VALID) |
| { |
| vnet_error_trace_t *t; |
| ip4_header_t *ip4; |
| ip6_header_t *ip6; |
| ethernet_header_t *eh; |
| i16 delta; |
| |
| t = vlib_add_trace (vm, node, b, sizeof (*t)); |
| delta = vnet_buffer (b)->l2_hdr_offset - b->current_data; |
| vlib_buffer_advance (b, delta); |
| |
| eh = vlib_buffer_get_current (b); |
| /* Save mactype */ |
| t->mactype = clib_net_to_host_u16 (eh->type); |
| t->details_valid = 1; |
| switch (t->mactype) |
| { |
| case ETHERNET_TYPE_IP4: |
| ip4 = (void *) (eh + 1); |
| t->details_valid = 2; |
| t->is_ip6 = 0; |
| t->src.ip4.as_u32 = ip4->src_address.as_u32; |
| t->dst.ip4.as_u32 = ip4->dst_address.as_u32; |
| break; |
| |
| case ETHERNET_TYPE_IP6: |
| ip6 = (void *) (eh + 1); |
| t->details_valid = 2; |
| t->is_ip6 = 1; |
| clib_memcpy_fast (t->src.as_u8, ip6->src_address.as_u8, |
| sizeof (ip6_address_t)); |
| clib_memcpy_fast (t->dst.as_u8, ip6->dst_address.as_u8, |
| sizeof (ip6_address_t)); |
| break; |
| |
| default: |
| /* Dunno, do nothing, leave details_valid alone */ |
| break; |
| } |
| /* Restore current data (probably unnecessary) */ |
| vlib_buffer_advance (b, -delta); |
| } |
| } |
| |
| static_always_inline uword |
| interface_drop_punt (vlib_main_t * vm, |
| vlib_node_runtime_t * node, |
| vlib_frame_t * frame, |
| vnet_error_disposition_t disposition) |
| { |
| u32 *from, n_left, thread_index, *sw_if_index; |
| vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b; |
| u32 sw_if_indices[VLIB_FRAME_SIZE]; |
| vlib_simple_counter_main_t *cm; |
| u16 nexts[VLIB_FRAME_SIZE]; |
| u32 n_trace; |
| vnet_main_t *vnm; |
| |
| vnm = vnet_get_main (); |
| thread_index = vm->thread_index; |
| from = vlib_frame_vector_args (frame); |
| n_left = frame->n_vectors; |
| b = bufs; |
| sw_if_index = sw_if_indices; |
| |
| vlib_get_buffers (vm, from, bufs, n_left); |
| |
| /* "trace add error-drop NNN?" */ |
| if (PREDICT_FALSE ((n_trace = vlib_get_trace_count (vm, node)))) |
| { |
| /* If pkts aren't otherwise traced... */ |
| if ((node->flags & VLIB_NODE_FLAG_TRACE) == 0) |
| { |
| /* Trace them from here */ |
| node->flags |= VLIB_NODE_FLAG_TRACE; |
| while (n_trace && n_left) |
| { |
| if (PREDICT_TRUE |
| (vlib_trace_buffer (vm, node, 0 /* next_index */ , b[0], |
| 0 /* follow chain */ ))) |
| { |
| /* |
| * Here we have a wireshark dissector problem. |
| * Packets may be well-formed, or not. We |
| * must not blow chunks in any case. |
| * |
| * Try to produce trace records which will help |
| * folks understand what's going on. |
| */ |
| drop_catchup_trace (vm, node, b[0]); |
| n_trace--; |
| } |
| n_left--; |
| b++; |
| } |
| } |
| |
| vlib_set_trace_count (vm, node, n_trace); |
| b = bufs; |
| n_left = frame->n_vectors; |
| } |
| |
| if (node->flags & VLIB_NODE_FLAG_TRACE) |
| interface_trace_buffers (vm, node, frame); |
| |
| /* All going to drop regardless, this is just a counting exercise */ |
| clib_memset (nexts, 0, sizeof (nexts)); |
| |
| cm = vec_elt_at_index (vnm->interface_main.sw_if_counters, |
| (disposition == VNET_ERROR_DISPOSITION_PUNT |
| ? VNET_INTERFACE_COUNTER_PUNT |
| : VNET_INTERFACE_COUNTER_DROP)); |
| |
| /* collect the array of interfaces first ... */ |
| while (n_left >= 4) |
| { |
| if (n_left >= 12) |
| { |
| /* Prefetch 8 ahead - there's not much going on in each iteration */ |
| vlib_prefetch_buffer_header (b[4], LOAD); |
| vlib_prefetch_buffer_header (b[5], LOAD); |
| vlib_prefetch_buffer_header (b[6], LOAD); |
| vlib_prefetch_buffer_header (b[7], LOAD); |
| } |
| sw_if_index[0] = vnet_buffer (b[0])->sw_if_index[VLIB_RX]; |
| sw_if_index[1] = vnet_buffer (b[1])->sw_if_index[VLIB_RX]; |
| sw_if_index[2] = vnet_buffer (b[2])->sw_if_index[VLIB_RX]; |
| sw_if_index[3] = vnet_buffer (b[3])->sw_if_index[VLIB_RX]; |
| |
| sw_if_index += 4; |
| n_left -= 4; |
| b += 4; |
| } |
| while (n_left) |
| { |
| sw_if_index[0] = vnet_buffer (b[0])->sw_if_index[VLIB_RX]; |
| |
| sw_if_index += 1; |
| n_left -= 1; |
| b += 1; |
| } |
| |
| /* ... then count against them in blocks */ |
| n_left = frame->n_vectors; |
| |
| while (n_left) |
| { |
| vnet_sw_interface_t *sw_if0; |
| u16 off, count; |
| |
| off = frame->n_vectors - n_left; |
| |
| sw_if_index = sw_if_indices + off; |
| |
| count = clib_count_equal_u32 (sw_if_index, n_left); |
| n_left -= count; |
| |
| vlib_increment_simple_counter (cm, thread_index, sw_if_index[0], count); |
| |
| /* Increment super-interface drop/punt counters for |
| sub-interfaces. */ |
| sw_if0 = vnet_get_sw_interface (vnm, sw_if_index[0]); |
| if (sw_if0->sup_sw_if_index != sw_if_index[0]) |
| vlib_increment_simple_counter |
| (cm, thread_index, sw_if0->sup_sw_if_index, count); |
| } |
| |
| vlib_buffer_enqueue_to_next (vm, node, from, nexts, frame->n_vectors); |
| |
| return frame->n_vectors; |
| } |
| |
| static inline void |
| pcap_drop_trace (vlib_main_t * vm, |
| vnet_interface_main_t * im, |
| vnet_pcap_t * pp, vlib_frame_t * f) |
| { |
| u32 *from; |
| u32 n_left = f->n_vectors; |
| vlib_buffer_t *b0, *p1; |
| u32 bi0; |
| i16 save_current_data; |
| u16 save_current_length; |
| vlib_error_main_t *em = &vm->error_main; |
| |
| from = vlib_frame_vector_args (f); |
| |
| while (n_left > 0) |
| { |
| if (PREDICT_TRUE (n_left > 1)) |
| { |
| p1 = vlib_get_buffer (vm, from[1]); |
| vlib_prefetch_buffer_header (p1, LOAD); |
| } |
| |
| bi0 = from[0]; |
| b0 = vlib_get_buffer (vm, bi0); |
| from++; |
| n_left--; |
| |
| /* See if we're pointedly ignoring this specific error */ |
| if (im->pcap_drop_filter_hash |
| && hash_get (im->pcap_drop_filter_hash, b0->error)) |
| continue; |
| |
| if (!vnet_is_packet_pcaped (pp, b0, ~0)) |
| continue; /* not matching, skip */ |
| |
| /* Trace all drops, or drops received on a specific interface */ |
| save_current_data = b0->current_data; |
| save_current_length = b0->current_length; |
| |
| /* |
| * Typically, we'll need to rewind the buffer |
| * if l2_hdr_offset is valid, make sure to rewind to the start of |
| * the L2 header. This may not be the buffer start in case we pop-ed |
| * vlan tags. |
| * Otherwise, rewind to buffer start and hope for the best. |
| */ |
| if (b0->flags & VNET_BUFFER_F_L2_HDR_OFFSET_VALID) |
| { |
| if (b0->current_data > vnet_buffer (b0)->l2_hdr_offset) |
| vlib_buffer_advance (b0, vnet_buffer (b0)->l2_hdr_offset - |
| b0->current_data); |
| } |
| else if (b0->current_data > 0) |
| { |
| vlib_buffer_advance (b0, (word) -b0->current_data); |
| } |
| |
| { |
| vlib_buffer_t *last = b0; |
| u32 error_node_index; |
| int drop_string_len; |
| vlib_node_t *n; |
| /* Length of the error string */ |
| int error_string_len = |
| clib_strnlen (em->counters_heap[b0->error].name, 128); |
| |
| /* Dig up the drop node */ |
| error_node_index = vm->node_main.node_by_error[b0->error]; |
| n = vlib_get_node (vm, error_node_index); |
| |
| /* Length of full drop string, w/ "nodename: " prepended */ |
| drop_string_len = error_string_len + vec_len (n->name) + 2; |
| |
| /* Find the last buffer in the chain */ |
| while (last->flags & VLIB_BUFFER_NEXT_PRESENT) |
| last = vlib_get_buffer (vm, last->next_buffer); |
| |
| /* |
| * Append <nodename>: <error-string> to the capture, |
| * only if we can do that without allocating a new buffer. |
| */ |
| if (PREDICT_TRUE ((last->current_data + last->current_length) < |
| (VLIB_BUFFER_DEFAULT_DATA_SIZE - drop_string_len))) |
| { |
| clib_memcpy_fast (last->data + last->current_data + |
| last->current_length, |
| n->name, vec_len (n->name)); |
| clib_memcpy_fast (last->data + last->current_data + |
| last->current_length + vec_len (n->name), |
| ": ", 2); |
| clib_memcpy_fast (last->data + last->current_data + |
| last->current_length + vec_len (n->name) + 2, |
| em->counters_heap[b0->error].name, |
| error_string_len); |
| last->current_length += drop_string_len; |
| b0->flags &= ~(VLIB_BUFFER_TOTAL_LENGTH_VALID); |
| pcap_add_buffer (&pp->pcap_main, vm, bi0, pp->max_bytes_per_pkt); |
| last->current_length -= drop_string_len; |
| b0->current_data = save_current_data; |
| b0->current_length = save_current_length; |
| continue; |
| } |
| } |
| |
| /* |
| * Didn't have space in the last buffer, here's the dropped |
| * packet as-is |
| */ |
| pcap_add_buffer (&pp->pcap_main, vm, bi0, pp->max_bytes_per_pkt); |
| |
| b0->current_data = save_current_data; |
| b0->current_length = save_current_length; |
| } |
| } |
| |
| #ifndef CLIB_MARCH_VARIANT |
| void |
| vnet_pcap_drop_trace_filter_add_del (u32 error_index, int is_add) |
| { |
| vnet_interface_main_t *im = &vnet_get_main ()->interface_main; |
| |
| if (im->pcap_drop_filter_hash == 0) |
| im->pcap_drop_filter_hash = hash_create (0, sizeof (uword)); |
| |
| if (is_add) |
| hash_set (im->pcap_drop_filter_hash, error_index, 1); |
| else |
| hash_unset (im->pcap_drop_filter_hash, error_index); |
| } |
| #endif /* CLIB_MARCH_VARIANT */ |
| |
| VLIB_NODE_FN (interface_drop) (vlib_main_t * vm, |
| vlib_node_runtime_t * node, |
| vlib_frame_t * frame) |
| { |
| vnet_main_t *vnm = vnet_get_main (); |
| vnet_interface_main_t *im = &vnet_get_main ()->interface_main; |
| vnet_pcap_t *pp = &vnm->pcap; |
| |
| if (PREDICT_FALSE (pp->pcap_drop_enable)) |
| pcap_drop_trace (vm, im, pp, frame); |
| |
| return interface_drop_punt (vm, node, frame, VNET_ERROR_DISPOSITION_DROP); |
| } |
| |
| VLIB_NODE_FN (interface_punt) (vlib_main_t * vm, |
| vlib_node_runtime_t * node, |
| vlib_frame_t * frame) |
| { |
| return interface_drop_punt (vm, node, frame, VNET_ERROR_DISPOSITION_PUNT); |
| } |
| |
| /* *INDENT-OFF* */ |
| VLIB_REGISTER_NODE (interface_drop) = { |
| .name = "error-drop", |
| .vector_size = sizeof (u32), |
| .format_trace = format_vnet_error_trace, |
| .flags = VLIB_NODE_FLAG_TRACE_SUPPORTED, |
| .n_next_nodes = 1, |
| .next_nodes = { |
| [0] = "drop", |
| }, |
| }; |
| /* *INDENT-ON* */ |
| |
| /* *INDENT-OFF* */ |
| VLIB_REGISTER_NODE (interface_punt) = { |
| .name = "error-punt", |
| .vector_size = sizeof (u32), |
| .format_trace = format_vnet_error_trace, |
| .flags = VLIB_NODE_FLAG_TRACE_SUPPORTED, |
| .n_next_nodes = 1, |
| .next_nodes = { |
| [0] = "punt", |
| }, |
| }; |
| /* *INDENT-ON* */ |
| |
| VLIB_REGISTER_NODE (vnet_per_buffer_interface_output_node) = { |
| .name = "interface-output", |
| .vector_size = sizeof (u32), |
| }; |
| |
| VLIB_NODE_FN (vnet_interface_output_arc_end_node) |
| (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame) |
| { |
| vnet_main_t *vnm = vnet_get_main (); |
| vnet_interface_main_t *im = &vnm->interface_main; |
| vnet_hw_if_output_node_runtime_t *r = 0; |
| vnet_hw_interface_t *hi; |
| vnet_hw_if_tx_frame_t *tf; |
| vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b = bufs; |
| u32 sw_if_indices[VLIB_FRAME_SIZE], *sw_if_index = sw_if_indices; |
| u64 used_elts[VLIB_FRAME_SIZE / 64] = {}; |
| u64 mask[VLIB_FRAME_SIZE / 64] = {}; |
| u32 *tmp, *from, n_left, n_free, n_comp, *to, swif, off; |
| u16 next_index; |
| vlib_frame_t *f; |
| |
| from = vlib_frame_vector_args (frame); |
| n_left = frame->n_vectors; |
| vlib_get_buffers (vm, from, bufs, n_left); |
| |
| while (n_left >= 8) |
| { |
| vlib_prefetch_buffer_header (b[4], LOAD); |
| vlib_prefetch_buffer_header (b[5], LOAD); |
| vlib_prefetch_buffer_header (b[6], LOAD); |
| vlib_prefetch_buffer_header (b[7], LOAD); |
| sw_if_index[0] = vnet_buffer (b[0])->sw_if_index[VLIB_TX]; |
| sw_if_index[1] = vnet_buffer (b[1])->sw_if_index[VLIB_TX]; |
| sw_if_index[2] = vnet_buffer (b[2])->sw_if_index[VLIB_TX]; |
| sw_if_index[3] = vnet_buffer (b[3])->sw_if_index[VLIB_TX]; |
| |
| b += 4; |
| sw_if_index += 4; |
| n_left -= 4; |
| } |
| |
| while (n_left) |
| { |
| sw_if_index[0] = vnet_buffer (b[0])->sw_if_index[VLIB_TX]; |
| b++; |
| sw_if_index++; |
| n_left--; |
| } |
| |
| n_left = frame->n_vectors; |
| swif = sw_if_indices[0]; |
| off = 0; |
| |
| /* a bit ugly but it allows us to reuse stack space for temporary store |
| * which may also improve memory latency */ |
| tmp = (u32 *) bufs; |
| |
| more: |
| next_index = vec_elt (im->if_out_arc_end_next_index_by_sw_if_index, swif); |
| hi = vnet_get_sup_hw_interface (vnm, swif); |
| if (hi->output_node_thread_runtimes) |
| r = vec_elt_at_index (hi->output_node_thread_runtimes, vm->thread_index); |
| f = vlib_get_next_frame_internal (vm, node, next_index, 0); |
| tf = vlib_frame_scalar_args (f); |
| |
| if (f->n_vectors > 0 && (r == 0 || r->frame.queue_id == tf->queue_id)) |
| { |
| /* append frame */ |
| n_free = VLIB_FRAME_SIZE - f->n_vectors; |
| if (n_free >= f->n_vectors) |
| to = (u32 *) vlib_frame_vector_args (f) + f->n_vectors; |
| else |
| to = tmp; |
| } |
| else |
| { |
| if (f->n_vectors > 0) |
| { |
| /* current frame doesn't fit - grab empty one */ |
| f = vlib_get_next_frame_internal (vm, node, next_index, 1); |
| tf = vlib_frame_scalar_args (f); |
| } |
| |
| /* empty frame - store scalar data */ |
| store_tx_frame_scalar_data (r, tf); |
| n_free = VLIB_FRAME_SIZE; |
| to = vlib_frame_vector_args (f); |
| } |
| |
| /* compare and compress based on comparison mask */ |
| clib_mask_compare_u32 (swif, sw_if_indices, mask, frame->n_vectors); |
| n_comp = clib_compress_u32 (to, from, mask, frame->n_vectors); |
| |
| if (tmp != to) |
| { |
| /* indices already written to frame, just close it */ |
| vlib_put_next_frame (vm, node, next_index, n_free - n_comp); |
| } |
| else if (n_free >= n_comp) |
| { |
| /* enough space in the existing frame */ |
| to = (u32 *) vlib_frame_vector_args (f) + f->n_vectors; |
| vlib_buffer_copy_indices (to, tmp, n_comp); |
| vlib_put_next_frame (vm, node, next_index, n_free - n_comp); |
| } |
| else |
| { |
| /* full frame */ |
| to = (u32 *) vlib_frame_vector_args (f) + f->n_vectors; |
| vlib_buffer_copy_indices (to, tmp, n_free); |
| vlib_put_next_frame (vm, node, next_index, 0); |
| |
| /* second frame */ |
| u32 n_frame2 = n_comp - n_free; |
| f = vlib_get_next_frame_internal (vm, node, next_index, 1); |
| to = vlib_frame_vector_args (f); |
| vlib_buffer_copy_indices (to, tmp + n_free, n_frame2); |
| tf = vlib_frame_scalar_args (f); |
| store_tx_frame_scalar_data (r, tf); |
| vlib_put_next_frame (vm, node, next_index, VLIB_FRAME_SIZE - n_frame2); |
| } |
| |
| n_left -= n_comp; |
| if (n_left) |
| { |
| /* store comparison mask so we can find next unused element */ |
| for (int i = 0; i < ARRAY_LEN (used_elts); i++) |
| used_elts[i] |= mask[i]; |
| |
| /* fine first unused sw_if_index by scanning trough used_elts bitmap */ |
| while (PREDICT_FALSE (used_elts[off] == ~0)) |
| off++; |
| |
| swif = |
| sw_if_indices[(off << 6) + count_trailing_zeros (~used_elts[off])]; |
| goto more; |
| } |
| |
| return frame->n_vectors; |
| } |
| |
| VLIB_REGISTER_NODE (vnet_interface_output_arc_end_node) = { |
| .name = "interface-output-arc-end", |
| .vector_size = sizeof (u32), |
| .n_next_nodes = 1, |
| .next_nodes = { |
| [0] = "error-drop", |
| }, |
| }; |
| |
| VNET_FEATURE_ARC_INIT (interface_output, static) = { |
| .arc_name = "interface-output", |
| .start_nodes = VNET_FEATURES (0), |
| .last_in_arc = "interface-output-arc-end", |
| .arc_index_ptr = &vnet_main.interface_main.output_feature_arc_index, |
| }; |
| |
| VNET_FEATURE_INIT (span_tx, static) = { |
| .arc_name = "interface-output", |
| .node_name = "span-output", |
| .runs_before = VNET_FEATURES ("interface-output-arc-end"), |
| }; |
| |
| VNET_FEATURE_INIT (ipsec_if_tx, static) = { |
| .arc_name = "interface-output", |
| .node_name = "ipsec-if-output", |
| .runs_before = VNET_FEATURES ("interface-output-arc-end"), |
| }; |
| |
| VNET_FEATURE_INIT (interface_output_arc_end, static) = { |
| .arc_name = "interface-output", |
| .node_name = "interface-output-arc-end", |
| .runs_before = 0, |
| }; |
| |
| #ifndef CLIB_MARCH_VARIANT |
| clib_error_t * |
| vnet_per_buffer_interface_output_hw_interface_add_del (vnet_main_t * vnm, |
| u32 hw_if_index, |
| u32 is_create) |
| { |
| vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index); |
| u32 next_index; |
| |
| if (hi->output_node_index == 0) |
| return 0; |
| |
| next_index = vlib_node_add_next |
| (vnm->vlib_main, vnet_per_buffer_interface_output_node.index, |
| hi->output_node_index); |
| hi->output_node_next_index = next_index; |
| |
| return 0; |
| } |
| |
| VNET_HW_INTERFACE_ADD_DEL_FUNCTION |
| (vnet_per_buffer_interface_output_hw_interface_add_del); |
| |
| void |
| vnet_set_interface_output_node (vnet_main_t * vnm, |
| u32 hw_if_index, u32 node_index) |
| { |
| ASSERT (node_index); |
| vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index); |
| u32 next_index = vlib_node_add_next |
| (vnm->vlib_main, vnet_per_buffer_interface_output_node.index, node_index); |
| hi->output_node_next_index = next_index; |
| hi->output_node_index = node_index; |
| } |
| #endif /* CLIB_MARCH_VARIANT */ |
| |
| /* |
| * fd.io coding-style-patch-verification: ON |
| * |
| * Local Variables: |
| * eval: (c-set-style "gnu") |
| * End: |
| */ |