--- /dev/null
+/*
+ * Copyright (c) 2019 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/ip/ip.h>
+#include <vnet/feature/feature.h>
+#include <vnet/qos/qos_egress_map.h>
+#include <vnet/qos/qos_mark.h>
+
+extern index_t *qos_mark_configs[QOS_N_SOURCES];
+
+always_inline qos_egress_map_t *
+qos_egress_map_interface (u32 sw_if_index, qos_source_t output_source)
+{
+ ASSERT (vec_len (qos_mark_configs[output_source]) > sw_if_index);
+
+ return pool_elt_at_index (qem_pool,
+ qos_mark_configs[output_source][sw_if_index]);
+}
+
+/**
+ * per-packet trace data
+ */
+typedef struct qos_mark_trace_t_
+{
+ /* per-pkt trace data */
+ qos_bits_t bits;
+ qos_source_t input;
+ u32 used;
+} qos_mark_trace_t;
+
+static inline uword
+qos_mark_inline (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame, qos_source_t output_source, int is_ip6)
+{
+ 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)
+ {
+ qos_source_t input_source0;
+ ethernet_vlan_header_t *vlan0;
+ u32 sw_if_index0, next0, bi0;
+ qos_egress_map_t *qem0;
+ ip4_header_t *ip4_0;
+ ip6_header_t *ip6_0;
+ vlib_buffer_t *b0;
+ qos_bits_t qos0;
+ u8 *mpls_bytes_0;
+ u8 eos0;
+
+ 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);
+ sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_TX];
+ input_source0 = vnet_buffer2 (b0)->qos.source;
+
+ qem0 = qos_egress_map_interface (sw_if_index0, output_source);
+ qos0 = qem0->qem_output[input_source0][vnet_buffer2 (b0)->qos.bits];
+
+ if (PREDICT_TRUE (b0->flags & VNET_BUFFER_F_QOS_DATA_VALID))
+ {
+ /* there is a source of QoS recording for this packet */
+ if (QOS_SOURCE_IP == output_source)
+ {
+ if (is_ip6)
+ {
+ ip6_0 = (vlib_buffer_get_current (b0) +
+ vnet_buffer (b0)->ip.save_rewrite_length);
+
+ ip6_set_traffic_class_network_order (ip6_0, qos0);
+ }
+ else
+ {
+ ip4_0 = (vlib_buffer_get_current (b0) +
+ vnet_buffer (b0)->ip.save_rewrite_length);
+ if (PREDICT_FALSE (qos0 != ip4_0->tos))
+ {
+ ip4_0->tos = qos0;
+ ip4_0->checksum = ip4_header_checksum (ip4_0);
+ }
+ }
+ }
+ else if (QOS_SOURCE_MPLS == output_source)
+ {
+ mpls_bytes_0 = (vlib_buffer_get_current (b0) +
+ vnet_buffer (b0)->mpls.save_rewrite_length);
+
+ /* apply to all the labels in the stack */
+ do
+ {
+ /* clear out the old COS bts */
+ mpls_bytes_0[2] &= 0xf1;
+ /* OR in 3 bits of the mapped value */
+ mpls_bytes_0[2] |= (qos0 & 0x7) << 1;
+ eos0 = mpls_bytes_0[2] & 0x1;
+ mpls_bytes_0 += 4;
+ }
+ while (!eos0);
+ }
+ else if (QOS_SOURCE_VLAN == output_source)
+ {
+ vlan0 = (vlib_buffer_get_current (b0) +
+ sizeof (ethernet_header_t));
+
+ ethernet_vlan_header_set_priority_net_order (vlan0, qos0);
+ }
+ }
+ vnet_feature_next (&next0, b0);
+
+ if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ qos_mark_trace_t *t =
+ vlib_add_trace (vm, node, b0, sizeof (*t));
+ t->bits = qos0;
+ t->input = input_source0;
+ t->used = (b0->flags & VNET_BUFFER_F_QOS_DATA_VALID);
+ }
+
+ /* 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;
+}
+
+/* packet trace format function */
+static u8 *
+format_qos_mark_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_mark_trace_t *t = va_arg (*args, qos_mark_trace_t *);
+
+ s = format (s, "source:%U qos:%d used:%s",
+ format_qos_source, t->input, t->bits, (t->used ? "yes" : "no"));
+
+ return s;
+}
+
+VLIB_NODE_FN (ip4_qos_mark_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return (qos_mark_inline (vm, node, frame, QOS_SOURCE_IP, 0));
+}
+
+VLIB_NODE_FN (ip6_qos_mark_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return (qos_mark_inline (vm, node, frame, QOS_SOURCE_IP, 1));
+}
+
+VLIB_NODE_FN (mpls_qos_mark_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return (qos_mark_inline (vm, node, frame, QOS_SOURCE_MPLS, 0));
+}
+
+VLIB_NODE_FN (vlan_mpls_qos_mark_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return (qos_mark_inline (vm, node, frame, QOS_SOURCE_VLAN, 0));
+}
+
+VLIB_NODE_FN (vlan_ip4_qos_mark_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return (qos_mark_inline (vm, node, frame, QOS_SOURCE_VLAN, 0));
+}
+
+VLIB_NODE_FN (vlan_ip6_qos_mark_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return (qos_mark_inline (vm, node, frame, QOS_SOURCE_VLAN, 0));
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (ip4_qos_mark_node) = {
+ .name = "ip4-qos-mark",
+ .vector_size = sizeof (u32),
+ .format_trace = format_qos_mark_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+
+ .n_errors = 0,
+ .n_next_nodes = 1,
+
+ .next_nodes = {
+ [0] = "ip4-drop",
+ },
+};
+
+VNET_FEATURE_INIT (ip4_qos_mark_node, static) = {
+ .arc_name = "ip4-output",
+ .node_name = "ip4-qos-mark",
+};
+
+VLIB_REGISTER_NODE (ip6_qos_mark_node) = {
+ .name = "ip6-qos-mark",
+ .vector_size = sizeof (u32),
+ .format_trace = format_qos_mark_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+
+ .n_errors = 0,
+ .n_next_nodes = 1,
+
+ .next_nodes = {
+ [0] = "ip6-drop",
+ },
+};
+
+VNET_FEATURE_INIT (ip6_qos_mark_node, static) = {
+ .arc_name = "ip6-output",
+ .node_name = "ip6-qos-mark",
+};
+
+VLIB_REGISTER_NODE (mpls_qos_mark_node) = {
+ .name = "mpls-qos-mark",
+ .vector_size = sizeof (u32),
+ .format_trace = format_qos_mark_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+
+ .n_errors = 0,
+ .n_next_nodes = 1,
+
+ .next_nodes = {
+ [0] = "mpls-drop",
+ },
+};
+
+VNET_FEATURE_INIT (mpls_qos_mark_node, static) = {
+ .arc_name = "mpls-output",
+ .node_name = "mpls-qos-mark",
+};
+
+VLIB_REGISTER_NODE (vlan_ip4_qos_mark_node) = {
+ .name = "vlan-ip4-qos-mark",
+ .vector_size = sizeof (u32),
+ .format_trace = format_qos_mark_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+
+ .n_errors = 0,
+ .n_next_nodes = 1,
+
+ .next_nodes = {
+ [0] = "error-drop",
+ },
+};
+
+VNET_FEATURE_INIT (vlan_ip4_qos_mark_node, static) = {
+ .arc_name = "ip4-output",
+ .node_name = "vlan-ip4-qos-mark",
+ .runs_after = VNET_FEATURES ("ip4-qos-mark"),
+};
+
+VLIB_REGISTER_NODE (vlan_ip6_qos_mark_node) = {
+ .name = "vlan-ip6-qos-mark",
+ .vector_size = sizeof (u32),
+ .format_trace = format_qos_mark_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+
+ .n_errors = 0,
+ .n_next_nodes = 1,
+
+ .next_nodes = {
+ [0] = "error-drop",
+ },
+};
+
+VNET_FEATURE_INIT (vlan_ip6_qos_mark_node, static) = {
+ .arc_name = "ip6-output",
+ .node_name = "vlan-ip6-qos-mark",
+ .runs_after = VNET_FEATURES ("ip6-qos-mark"),
+};
+
+VLIB_REGISTER_NODE (vlan_mpls_qos_mark_node) = {
+ .name = "vlan-mpls-qos-mark",
+ .vector_size = sizeof (u32),
+ .format_trace = format_qos_mark_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+
+ .n_errors = 0,
+ .n_next_nodes = 1,
+
+ .next_nodes = {
+ [0] = "error-drop",
+ },
+};
+
+VNET_FEATURE_INIT (vlan_mpls_qos_mark_node, static) = {
+ .arc_name = "mpls-output",
+ .node_name = "vlan-mpls-qos-mark",
+ .runs_after = VNET_FEATURES ("mpls-qos-mark"),
+};
+
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
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