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/*
* 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));
}
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",
};
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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