igmp: data structure refactoring - vpp - Vector Packet Processing

diff options

author	Jakub Grajciar <jgrajcia@cisco.com>	2018-04-23 14:40:59 +0200
committer	Damjan Marion <dmarion.lists@gmail.com>	2018-04-25 07:18:14 +0000
commit	b1d2aa8bca3a6e1811fb67dde9c8862e13216824 (patch)
tree	5a0831c74ce54c0d57e82be88a12f4495ba5027f /src/vnet/interface.h
parent	de02414c3d74efd71cbc1594b19e07027191a3d0 (diff)

igmp: data structure refactoring

Improve igmp membership report performance, introduce group and source specific timers. (side effect compatible with Group-specific query). Change-Id: Ie3dd2c0dabe5f7138c2f8029e6bbbbfcb5e4904f Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com>

Diffstat (limited to 'src/vnet/interface.h')

0 files changed, 0 insertions, 0 deletions

/* * Copyright (c) 2016 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include <vnet/vnet.h> #include <vnet/adj/adj_l2.h> #include <vnet/ethernet/ethernet.h> #include <vnet/ip/ip.h> /** * @brief Trace data for a L2 Midchain */ typedef struct adj_l2_trace_t_ { /** Adjacency index taken. */ u32 adj_index; } adj_l2_trace_t; static u8 * format_adj_l2_trace (u8 * s, va_list * args) { CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); adj_l2_trace_t * t = va_arg (*args, adj_l2_trace_t *); s = format (s, "adj-idx %d : %U", t->adj_index, format_ip_adjacency, t->adj_index, FORMAT_IP_ADJACENCY_NONE); return s; } typedef enum adj_l2_rewrite_next_t_ { ADJ_L2_REWRITE_NEXT_DROP, } adj_l2_rewrite_next_t; always_inline uword adj_l2_rewrite_inline (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame, int is_midchain) { u32 * from = vlib_frame_vector_args (frame); u32 n_left_from, n_left_to_next, * to_next, next_index; u32 thread_index = vlib_get_thread_index(); ethernet_main_t * em = &ethernet_main; n_left_from = frame->n_vectors; 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 > 0 && n_left_to_next > 0) { ip_adjacency_t * adj0; vlib_buffer_t * p0; char *h0; u32 pi0, rw_len0, adj_index0, next0 = 0; u32 tx_sw_if_index0; pi0 = to_next[0] = from[0]; from += 1; n_left_from -= 1; to_next += 1; n_left_to_next -= 1; p0 = vlib_get_buffer (vm, pi0); h0 = vlib_buffer_get_current (p0); adj_index0 = vnet_buffer (p0)->ip.adj_index[VLIB_TX]; adj0 = adj_get (adj_index0); /* Guess we are only writing on simple Ethernet header. */ vnet_rewrite_one_header (adj0[0], h0, sizeof (ethernet_header_t)); /* Update packet buffer attributes/set output interface. */ rw_len0 = adj0[0].rewrite_header.data_bytes; vnet_buffer(p0)->ip.save_rewrite_length = rw_len0; vnet_buffer(p0)->sw_if_index[VLIB_TX] = adj0->rewrite_header.sw_if_index; vlib_increment_combined_counter(&adjacency_counters, thread_index, adj_index0, /* packet increment */ 0, /* byte increment */ rw_len0); /* Check MTU of outgoing interface. */ if (PREDICT_TRUE((vlib_buffer_length_in_chain (vm, p0) <= adj0[0].rewrite_header.max_l3_packet_bytes))) { /* Don't adjust the buffer for ttl issue; icmp-error node wants * to see the IP headerr */ p0->current_data -= rw_len0; p0->current_length += rw_len0; tx_sw_if_index0 = adj0[0].rewrite_header.sw_if_index; if (is_midchain) { adj0->sub_type.midchain.fixup_func(vm, adj0, p0); } vnet_buffer (p0)->sw_if_index[VLIB_TX] = tx_sw_if_index0; /* * Follow the feature ARC. this will result eventually in * the midchain-tx node */ vnet_feature_arc_start(em->output_feature_arc_index, tx_sw_if_index0, &next0, p0); } else { /* can't fragment L2 */ next0 = ADJ_L2_REWRITE_NEXT_DROP; } if (PREDICT_FALSE(p0->flags & VLIB_BUFFER_IS_TRACED)) { adj_l2_trace_t *tr = vlib_add_trace (vm, node, p0, sizeof (*tr)); tr->adj_index = vnet_buffer(p0)->ip.adj_index[VLIB_TX]; } vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, n_left_to_next, pi0, next0); } vlib_put_next_frame (vm, node, next_index, n_left_to_next); } return frame->n_vectors; } static uword adj_l2_rewrite (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { return adj_l2_rewrite_inline (vm, node, frame, 0); } static uword adj_l2_midchain (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { return adj_l2_rewrite_inline (vm, node, frame, 1); } VLIB_REGISTER_NODE (adj_l2_rewrite_node) = { .function = adj_l2_rewrite, .name = "adj-l2-rewrite", .vector_size = sizeof (u32), .format_trace = format_adj_l2_trace, .n_next_nodes = 1, .next_nodes = { [ADJ_L2_REWRITE_NEXT_DROP] = "error-drop", }, }; VLIB_NODE_FUNCTION_MULTIARCH (adj_l2_rewrite_node, adj_l2_rewrite) VLIB_REGISTER_NODE (adj_l2_midchain_node) = { .function = adj_l2_midchain, .name = "adj-l2-midchain", .vector_size = sizeof (u32), .format_trace = format_adj_l2_trace, .n_next_nodes = 1, .next_nodes = { [ADJ_L2_REWRITE_NEXT_DROP] = "error-drop", }, }; VLIB_NODE_FUNCTION_MULTIARCH (adj_l2_midchain_node, adj_l2_midchain)


context:
space:
mode: