/* * Copyright (c) 2018 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/qos/qos_store.h> #include <vnet/ip/ip.h> #include <vnet/ip/ip6_to_ip4.h> #include <vnet/feature/feature.h> #include <vnet/qos/qos_types.h> extern u8 *qos_store_configs[QOS_N_SOURCES]; /** * per-packet trace data */ typedef struct qos_store_trace_t_ { /* per-pkt trace data */ qos_bits_t bits; } qos_store_trace_t; /* packet trace format function */ static u8 * format_qos_store_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 *); qos_store_trace_t *t = va_arg (*args, qos_store_trace_t *); s = format (s, "qos:%d", t->bits); return s; } static inline uword qos_store_inline (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame, qos_source_t qos_src) { u32 n_left_from, *from, *to_next, next_index; next_index = 0; n_left_from = frame->n_vectors; from = vlib_frame_vector_args (frame); while (n_left_from > 0) { u32 n_left_to_next; vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); while (n_left_from > 0 && n_left_to_next > 0) { vlib_buffer_t *b0; u32 next0, bi0; qos_bits_t qos0; next0 = 0; bi0 = from[0]; to_next[0] = bi0; from += 1; to_next += 1; n_left_from -= 1; n_left_to_next -= 1; b0 = vlib_get_buffer (vm, bi0); qos0 = *(qos_bits_t *) vnet_feature_next_with_data (&next0, b0, sizeof (qos_bits_t)); vnet_buffer2 (b0)->qos.bits = qos0; vnet_buffer2 (b0)->qos.source = qos_src; b0->flags |= VNET_BUFFER_F_QOS_DATA_VALID; if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && (b0->flags & VLIB_BUFFER_IS_TRACED))) { qos_store_trace_t *t = vlib_add_trace (vm, node, b0, sizeof (*t)); t->bits = qos0; } /* verify speculative enqueue, maybe switch current next frame */ 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; } VLIB_NODE_FN (ip4_qos_store_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { return (qos_store_inline (vm, node, frame, QOS_SOURCE_IP)); } VLIB_NODE_FN (ip6_qos_store_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { return (qos_store_inline (vm, node, frame, QOS_SOURCE_IP)); } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (ip4_qos_store_node) = { .name = "ip4-qos-store", .vector_size = sizeof (u32), .format_trace = format_qos_store_trace, .type = VLIB_NODE_TYPE_INTERNAL, .n_errors = 0, .n_next_nodes = 1, .next_nodes = { [0] = "ip4-drop", }, }; VNET_FEATURE_INIT (ip4_qos_store_node, static) = { .arc_name = "ip4-unicast", .node_name = "ip4-qos-store", }; VNET_FEATURE_INIT (ip4m_qos_store_node, static) = { .arc_name = "ip4-multicast", .node_name = "ip4-qos-store", }; VLIB_REGISTER_NODE (ip6_qos_store_node) = { .name = "ip6-qos-store", .vector_size = sizeof (u32), .format_trace = format_qos_store_trace, .type = VLIB_NODE_TYPE_INTERNAL, .n_errors = 0, .n_next_nodes = 1, .next_nodes = { [0] = "ip6-drop", }, }; VNET_FEATURE_INIT (ip6_qos_store_node, static) = { .arc_name = "ip6-unicast", .node_name = "ip6-qos-store", }; VNET_FEATURE_INIT (ip6m_qos_store_node, static) = { .arc_name = "ip6-multicast", .node_name = "ip6-qos-store", }; /* *INDENT-ON* */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */