/* * 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. */ #include <vnet/vnet.h> #include <vnet/devices/devices.h> #include <vnet/feature/feature.h> #include <vnet/ip/ip.h> #include <vnet/ethernet/ethernet.h> vnet_device_main_t vnet_device_main; static uword device_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { return 0; } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (device_input_node) = { .function = device_input_fn, .name = "device-input", .runtime_data_bytes = sizeof (vnet_hw_if_rx_node_runtime_t), .type = VLIB_NODE_TYPE_INPUT, .state = VLIB_NODE_STATE_DISABLED, .n_next_nodes = VNET_DEVICE_INPUT_N_NEXT_NODES, .next_nodes = VNET_DEVICE_INPUT_NEXT_NODES, }; /* Table defines how much we need to advance current data pointer in the buffer if we shortcut to l3 nodes */ const u32 __attribute__((aligned (CLIB_CACHE_LINE_BYTES))) device_input_next_node_advance[((VNET_DEVICE_INPUT_N_NEXT_NODES / CLIB_CACHE_LINE_BYTES) +1) * CLIB_CACHE_LINE_BYTES] = { [VNET_DEVICE_INPUT_NEXT_IP4_INPUT] = sizeof (ethernet_header_t), [VNET_DEVICE_INPUT_NEXT_IP4_NCS_INPUT] = sizeof (ethernet_header_t), [VNET_DEVICE_INPUT_NEXT_IP6_INPUT] = sizeof (ethernet_header_t), [VNET_DEVICE_INPUT_NEXT_MPLS_INPUT] = sizeof (ethernet_header_t), }; const u32 __attribute__((aligned (CLIB_CACHE_LINE_BYTES))) device_input_next_node_flags[((VNET_DEVICE_INPUT_N_NEXT_NODES / CLIB_CACHE_LINE_BYTES) +1) * CLIB_CACHE_LINE_BYTES] = { [VNET_DEVICE_INPUT_NEXT_IP4_INPUT] = VNET_BUFFER_F_L3_HDR_OFFSET_VALID, [VNET_DEVICE_INPUT_NEXT_IP4_NCS_INPUT] = VNET_BUFFER_F_L3_HDR_OFFSET_VALID, [VNET_DEVICE_INPUT_NEXT_IP6_INPUT] = VNET_BUFFER_F_L3_HDR_OFFSET_VALID, [VNET_DEVICE_INPUT_NEXT_MPLS_INPUT] = VNET_BUFFER_F_L3_HDR_OFFSET_VALID, }; VNET_FEATURE_ARC_INIT (device_input, static) = { .arc_name = "device-input", .start_nodes = VNET_FEATURES ("device-input"), .last_in_arc = "ethernet-input", .arc_index_ptr = &feature_main.device_input_feature_arc_index, }; VNET_FEATURE_INIT (l2_patch, static) = { .arc_name = "device-input", .node_name = "l2-patch", .runs_before = VNET_FEATURES ("ethernet-input"), }; VNET_FEATURE_INIT (worker_handoff, static) = { .arc_name = "device-input", .node_name = "worker-handoff", .runs_before = VNET_FEATURES ("ethernet-input"), }; VNET_FEATURE_INIT (span_input, static) = { .arc_name = "device-input", .node_name = "span-input", .runs_before = VNET_FEATURES ("ethernet-input"), }; VNET_FEATURE_INIT (p2p_ethernet_node, static) = { .arc_name = "device-input", .node_name = "p2p-ethernet-input", .runs_before = VNET_FEATURES ("ethernet-input"), }; VNET_FEATURE_INIT (ethernet_input, static) = { .arc_name = "device-input", .node_name = "ethernet-input", .runs_before = 0, /* not before any other features */ }; /* *INDENT-ON* */ static clib_error_t * vnet_device_init (vlib_main_t * vm) { vnet_device_main_t *vdm = &vnet_device_main; vlib_thread_main_t *tm = vlib_get_thread_main (); vlib_thread_registration_t *tr; uword *p; vec_validate_aligned (vdm->workers, tm->n_vlib_mains - 1, CLIB_CACHE_LINE_BYTES); p = hash_get_mem (tm->thread_registrations_by_name, "workers"); tr = p ? (vlib_thread_registration_t *) p[0] : 0; if (tr && tr->count > 0) { vdm->first_worker_thread_index = tr->first_index; vdm->next_worker_thread_index = tr->first_index; vdm->last_worker_thread_index = tr->first_index + tr->count - 1; } return 0; } VLIB_INIT_FUNCTION (vnet_device_init); /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */