2 *------------------------------------------------------------------
3 * Copyright (c) 2020 Cisco and/or its affiliates.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 *------------------------------------------------------------------
18 #include <vlib/vlib.h>
19 #include <vnet/devices/virtio/virtio.h>
20 #include <vnet/gso/gro_func.h>
23 virtio_send_interrupt_process (vlib_main_t * vm,
24 vlib_node_runtime_t * rt, vlib_frame_t * f)
27 f64 timeout = 3153600000.0 /* 100 years */ ;
28 uword event_type, *event_data = 0;
29 virtio_main_t *vim = &virtio_main;
33 vlib_process_wait_for_event_or_clock (vm, timeout);
34 event_type = vlib_process_get_events (vm, &event_data);
35 vec_reset_length (event_data);
39 case VIRTIO_EVENT_STOP_TIMER:
40 timeout = 3153600000.0;
43 case VIRTIO_EVENT_START_TIMER:
44 timeout = 1e-3; /* 1 millisecond */
49 pool_foreach (vif, vim->interfaces, {
50 if (vif->packet_coalesce || vif->packet_buffering)
52 virtio_vring_t *vring;
53 vec_foreach (vring, vif->rxq_vrings)
55 if (vring->mode == VNET_HW_IF_RX_MODE_INTERRUPT ||
56 vring->mode == VNET_HW_IF_RX_MODE_ADAPTIVE)
57 vnet_device_input_set_interrupt_pending (
58 vnet_get_main (), vif->hw_if_index,
59 RX_QUEUE_ACCESS (vring->queue_id));
67 clib_warning ("BUG: unhandled event type %d", event_type);
75 VLIB_REGISTER_NODE (virtio_send_interrupt_node) = {
76 .function = virtio_send_interrupt_process,
77 .type = VLIB_NODE_TYPE_PROCESS,
78 .name = "virtio-send-interrupt-process",
83 * fd.io coding-style-patch-verification: ON
86 * eval: (c-set-style "gnu")