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/*
* 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>
#include <vlib/stats/stats.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;
}
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,
};
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 */
};
static void
input_rate_collector_fn (vlib_stats_collector_data_t *d)
{
vlib_stats_segment_t *sm = vlib_stats_get_segment ();
vlib_stats_entry_t *e2 = sm->directory_vector + d->private_data;
static u64 last_input_packets = 0;
f64 dt, now;
now = vlib_time_now (vlib_get_main ());
u64 input_packets = vnet_get_aggregate_rx_packets ();
dt = now - e2->value;
d->entry->value = (f64) (input_packets - last_input_packets) / dt;
last_input_packets = input_packets;
e2->value = now;
}
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;
vlib_stats_collector_reg_t reg = {};
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;
}
reg.private_data = vlib_stats_add_timestamp ("/sys/last_update");
reg.entry_index = vlib_stats_add_gauge ("/sys/input_rate");
reg.collect_fn = input_rate_collector_fn;
vlib_stats_register_collector_fn (®);
return 0;
}
VLIB_INIT_FUNCTION (vnet_device_init);
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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