aboutsummaryrefslogtreecommitdiffstats
path: root/src/vnet/interface/rx_queue_funcs.h
blob: e1e6c33988a641fd71209cd878a0521c87601456 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
/*
 * Copyright (c) 2020 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>

/* funciton declarations */

u32 vnet_hw_if_get_rx_queue_index_by_id (vnet_main_t *vnm, u32 hw_if_index,
					 u32 queue_id);
u32 vnet_hw_if_register_rx_queue (vnet_main_t *vnm, u32 hw_if_index,
				  u32 queue_id, u32 thread_idnex);
void vnet_hw_if_unregister_rx_queue (vnet_main_t *vnm, u32 queue_index);
void vnet_hw_if_unregister_all_rx_queues (vnet_main_t *vnm, u32 hw_if_index);
void vnet_hw_if_set_rx_queue_file_index (vnet_main_t *vnm, u32 queue_index,
					 u32 file_index);
void vnet_hw_if_set_input_node (vnet_main_t *vnm, u32 hw_if_index,
				u32 node_index);
int vnet_hw_if_set_rx_queue_mode (vnet_main_t *vnm, u32 queue_index,
				  vnet_hw_if_rx_mode mode);
vnet_hw_if_rx_mode vnet_hw_if_get_rx_queue_mode (vnet_main_t *vnm,
						 u32 queue_index);
void vnet_hw_if_set_rx_queue_thread_index (vnet_main_t *vnm, u32 queue_index,
					   u32 thread_index);
void vnet_hw_if_update_runtime_data (vnet_main_t *vnm, u32 hw_if_index);
void vnet_hw_if_generate_rxq_int_poll_vector (vlib_main_t *vm,
					      vlib_node_runtime_t *node);

/* inline functions */

static_always_inline vnet_hw_if_rx_queue_t *
vnet_hw_if_get_rx_queue (vnet_main_t *vnm, u32 queue_index)
{
  vnet_interface_main_t *im = &vnm->interface_main;
  if (pool_is_free_index (im->hw_if_rx_queues, queue_index))
    return 0;
  return pool_elt_at_index (im->hw_if_rx_queues, queue_index);
}

static_always_inline void
vnet_hw_if_rx_queue_set_int_pending (vnet_main_t *vnm, u32 queue_index)
{
  vnet_hw_if_rx_queue_t *rxq = vnet_hw_if_get_rx_queue (vnm, queue_index);
  vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, rxq->hw_if_index);
  vlib_main_t *vm = vlib_get_main_by_index (rxq->thread_index);
  vnet_hw_if_rx_node_runtime_t *rt;
  if (PREDICT_FALSE (rxq->mode != VNET_HW_IF_RX_MODE_INTERRUPT &&
		     rxq->mode != VNET_HW_IF_RX_MODE_ADAPTIVE))
    return;
  rt = vlib_node_get_runtime_data (vm, hi->input_node_index);
  if (vm == vlib_get_main ())
    clib_interrupt_set (rt->rxq_interrupts, queue_index);
  else
    clib_interrupt_set_atomic (rt->rxq_interrupts, queue_index);
  vlib_node_set_interrupt_pending (vm, hi->input_node_index);
}

static_always_inline vnet_hw_if_rxq_poll_vector_t *
vnet_hw_if_get_rxq_poll_vector (vlib_main_t *vm, vlib_node_runtime_t *node)
{
  vnet_hw_if_rx_node_runtime_t *rt = (void *) node->runtime_data;

  if (PREDICT_FALSE (node->state == VLIB_NODE_STATE_INTERRUPT))
    vnet_hw_if_generate_rxq_int_poll_vector (vm, node);

  return rt->rxq_poll_vector;
}

static_always_inline u8
vnet_hw_if_get_rx_queue_numa_node (vnet_main_t *vnm, u32 queue_index)
{
  vnet_hw_if_rx_queue_t *rxq = vnet_hw_if_get_rx_queue (vnm, queue_index);
  vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, rxq->hw_if_index);
  return hi->numa_node;
}

static_always_inline u32
vnet_hw_if_get_rx_queue_thread_index (vnet_main_t *vnm, u32 queue_index)
{
  vnet_hw_if_rx_queue_t *rxq = vnet_hw_if_get_rx_queue (vnm, queue_index);
  return rxq->thread_index;
}

static_always_inline int
vnet_hw_if_rxq_cmp_cli_api (vnet_hw_if_rx_queue_t **a,
			    vnet_hw_if_rx_queue_t **b)
{
  vnet_main_t *vnm;
  vnet_hw_interface_t *hif_a;
  vnet_hw_interface_t *hif_b;

  if (*a == *b)
    return 0;

  if (a[0]->thread_index != b[0]->thread_index)
    return 2 * (a[0]->thread_index > b[0]->thread_index) - 1;

  vnm = vnet_get_main ();
  hif_a = vnet_get_hw_interface (vnm, a[0]->hw_if_index);
  hif_b = vnet_get_hw_interface (vnm, b[0]->hw_if_index);

  if (hif_a->input_node_index != hif_b->input_node_index)
    return 2 * (hif_a->input_node_index > hif_b->input_node_index) - 1;

  if (a[0]->hw_if_index != b[0]->hw_if_index)
    return 2 * (a[0]->hw_if_index > b[0]->hw_if_index) - 1;

  if (a[0]->queue_id != b[0]->queue_id)
    return 2 * (a[0]->queue_id > b[0]->queue_id) - 1;

  ASSERT (0);
  return ~0;
}

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