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Vector Packet Processing
rx_queue_funcs.h
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1 /*
2  * Copyright (c) 2020 Cisco and/or its affiliates.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at:
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #include <vnet/vnet.h>
17 
18 /* funciton declarations */
19 
21  u32 queue_id);
23  u32 queue_id, u32 thread_idnex);
24 void vnet_hw_if_unregister_rx_queue (vnet_main_t *vnm, u32 queue_index);
25 void vnet_hw_if_unregister_all_rx_queues (vnet_main_t *vnm, u32 hw_if_index);
26 void vnet_hw_if_set_rx_queue_file_index (vnet_main_t *vnm, u32 queue_index,
27  u32 file_index);
28 void vnet_hw_if_set_input_node (vnet_main_t *vnm, u32 hw_if_index,
29  u32 node_index);
30 int vnet_hw_if_set_rx_queue_mode (vnet_main_t *vnm, u32 queue_index,
33  u32 queue_index);
38 
39 /* inline functions */
40 
43 {
45  if (pool_is_free_index (im->hw_if_rx_queues, queue_index))
46  return 0;
47  return pool_elt_at_index (im->hw_if_rx_queues, queue_index);
48 }
49 
52 {
53  vnet_hw_if_rx_queue_t *rxq = vnet_hw_if_get_rx_queue (vnm, queue_index);
59  return;
60  rt = vlib_node_get_runtime_data (vm, hi->input_node_index);
61  if (vm == vlib_get_main ())
62  clib_interrupt_set (rt->rxq_interrupts, queue_index);
63  else
64  clib_interrupt_set_atomic (rt->rxq_interrupts, queue_index);
65  vlib_node_set_interrupt_pending (vm, hi->input_node_index);
66 }
67 
70 {
71  vnet_hw_if_rx_node_runtime_t *rt = (void *) node->runtime_data;
72 
73  if (PREDICT_FALSE (node->state == VLIB_NODE_STATE_INTERRUPT))
75 
76  return rt->rxq_poll_vector;
77 }
78 
81 {
82  vnet_hw_if_rx_queue_t *rxq = vnet_hw_if_get_rx_queue (vnm, queue_index);
84  return hi->numa_node;
85 }
86 
89 {
90  vnet_hw_if_rx_queue_t *rxq = vnet_hw_if_get_rx_queue (vnm, queue_index);
91  return rxq->thread_index;
92 }
93 
97 {
98  vnet_main_t *vnm;
99  vnet_hw_interface_t *hif_a;
100  vnet_hw_interface_t *hif_b;
101 
102  if (*a == *b)
103  return 0;
104 
105  if (a[0]->thread_index != b[0]->thread_index)
106  return 2 * (a[0]->thread_index > b[0]->thread_index) - 1;
107 
108  vnm = vnet_get_main ();
109  hif_a = vnet_get_hw_interface (vnm, a[0]->hw_if_index);
110  hif_b = vnet_get_hw_interface (vnm, b[0]->hw_if_index);
111 
112  if (hif_a->input_node_index != hif_b->input_node_index)
113  return 2 * (hif_a->input_node_index > hif_b->input_node_index) - 1;
114 
115  if (a[0]->hw_if_index != b[0]->hw_if_index)
116  return 2 * (a[0]->hw_if_index > b[0]->hw_if_index) - 1;
117 
118  if (a[0]->queue_id != b[0]->queue_id)
119  return 2 * (a[0]->queue_id > b[0]->queue_id) - 1;
120 
121  ASSERT (0);
122  return ~0;
123 }
124 
125 /*
126  * fd.io coding-style-patch-verification: ON
127  *
128  * Local Variables:
129  * eval: (c-set-style "gnu")
130  * End:
131  */
im
vnet_interface_main_t * im
Definition: interface_output.c:395
thread_index
u32 thread_index
Definition: nat44_ei_hairpinning.c:492
VNET_HW_IF_RX_MODE_ADAPTIVE
@ VNET_HW_IF_RX_MODE_ADAPTIVE
Definition: interface.h:58
vlib_node_get_runtime_data
static void * vlib_node_get_runtime_data(vlib_main_t *vm, u32 node_index)
Get node runtime private data by node index.
Definition: node_funcs.h:137
vnet_hw_if_rxq_cmp_cli_api
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)
Definition: rx_queue_funcs.h:95
vnet_hw_if_rx_queue_t::mode
vnet_hw_if_rx_mode mode
Definition: interface.h:597
vnet_hw_if_get_rx_queue_numa_node
static_always_inline u8 vnet_hw_if_get_rx_queue_numa_node(vnet_main_t *vnm, u32 queue_index)
Definition: rx_queue_funcs.h:80
vnet_hw_if_get_rx_queue
static_always_inline vnet_hw_if_rx_queue_t * vnet_hw_if_get_rx_queue(vnet_main_t *vnm, u32 queue_index)
Definition: rx_queue_funcs.h:42
pool_elt_at_index
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:553
vnet_hw_if_rx_queue_t::thread_index
u32 thread_index
Definition: interface.h:588
vnet_hw_if_get_rx_queue_mode
vnet_hw_if_rx_mode vnet_hw_if_get_rx_queue_mode(vnet_main_t *vnm, u32 queue_index)
Definition: rx_queue.c:208
node
vlib_main_t vlib_node_runtime_t * node
Definition: nat44_ei.c:3047
vnet_interface_main_t
Definition: interface.h:989
mode
vl_api_tunnel_mode_t mode
Definition: gre.api:48
vm
vlib_main_t * vm
X-connect all packets from the HOST to the PHY.
Definition: nat44_ei.c:3047
node_index
node node_index
Definition: interface_output.c:420
clib_interrupt_set_atomic
static_always_inline void clib_interrupt_set_atomic(void *in, int int_num)
Definition: interrupt.h:78
hi
vl_api_ip4_address_t hi
Definition: arp.api:37
vnet_hw_if_set_rx_queue_mode
int vnet_hw_if_set_rx_queue_mode(vnet_main_t *vnm, u32 queue_index, vnet_hw_if_rx_mode mode)
Definition: rx_queue.c:167
vnet_interface_main_t::hw_if_rx_queues
vnet_hw_if_rx_queue_t * hw_if_rx_queues
Definition: interface.h:995
pool_is_free_index
#define pool_is_free_index(P, I)
Use free bitmap to query whether given index is free.
Definition: pool.h:302
vnet_hw_if_register_rx_queue
u32 vnet_hw_if_register_rx_queue(vnet_main_t *vnm, u32 hw_if_index, u32 queue_id, u32 thread_idnex)
Definition: rx_queue.c:64
vnet_get_hw_interface
static vnet_hw_interface_t * vnet_get_hw_interface(vnet_main_t *vnm, u32 hw_if_index)
Definition: interface_funcs.h:44
vnet_get_main
vnet_main_t * vnet_get_main(void)
Definition: pnat_test_stubs.h:56
PREDICT_FALSE
#define PREDICT_FALSE(x)
Definition: clib.h:124
vnet_hw_if_unregister_all_rx_queues
void vnet_hw_if_unregister_all_rx_queues(vnet_main_t *vnm, u32 hw_if_index)
Definition: rx_queue.c:122
vnet_hw_if_rx_mode
vnet_hw_if_rx_mode
Definition: interface.h:53
static_always_inline
#define static_always_inline
Definition: clib.h:112
if
if(node->flags &VLIB_NODE_FLAG_TRACE) vnet_interface_output_trace(vm
clib_interrupt_set
static_always_inline void clib_interrupt_set(void *in, int int_num)
Definition: interrupt.h:66
VNET_HW_IF_RX_MODE_INTERRUPT
@ VNET_HW_IF_RX_MODE_INTERRUPT
Definition: interface.h:57
vnet_hw_if_get_rx_queue_index_by_id
u32 vnet_hw_if_get_rx_queue_index_by_id(vnet_main_t *vnm, u32 hw_if_index, u32 queue_id)
Definition: rx_queue.c:54
vnet_hw_if_rx_queue_set_int_pending
static_always_inline void vnet_hw_if_rx_queue_set_int_pending(vnet_main_t *vnm, u32 queue_index)
Definition: rx_queue_funcs.h:51
vnet_hw_if_set_input_node
void vnet_hw_if_set_input_node(vnet_main_t *vnm, u32 hw_if_index, u32 node_index)
Definition: rx_queue.c:157
vnet_hw_if_set_rx_queue_file_index
void vnet_hw_if_set_rx_queue_file_index(vnet_main_t *vnm, u32 queue_index, u32 file_index)
Definition: rx_queue.c:144
vnet_hw_interface_t
Definition: interface.h:638
vnet_main_t
Definition: vnet.h:76
vnet_hw_if_rx_node_runtime_t
Definition: interface.h:752
ASSERT
#define ASSERT(truth)
Definition: error_bootstrap.h:69
u32
unsigned int u32
Definition: types.h:88
vlib_node_set_interrupt_pending
static void vlib_node_set_interrupt_pending(vlib_main_t *vm, u32 node_index)
Definition: node_funcs.h:249
vlib_get_main_by_index
static vlib_main_t * vlib_get_main_by_index(u32 thread_index)
Definition: global_funcs.h:29
vnet_hw_if_get_rxq_poll_vector
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)
Definition: rx_queue_funcs.h:69
vlib_main_t
Definition: main.h:102
vlib_get_main
static vlib_main_t * vlib_get_main(void)
Definition: global_funcs.h:38
b
vlib_buffer_t ** b
Definition: nat44_ei_out2in.c:717
u8
unsigned char u8
Definition: types.h:56
a
a
Definition: bitmap.h:544
rt
vnet_interface_output_runtime_t * rt
Definition: interface_output.c:399
vnet_hw_if_unregister_rx_queue
void vnet_hw_if_unregister_rx_queue(vnet_main_t *vnm, u32 queue_index)
Definition: rx_queue.c:99
vnet_hw_if_rx_queue_t::hw_if_index
u32 hw_if_index
Definition: interface.h:582
vnet_hw_if_rx_queue_t
Definition: interface.h:579
vnet_hw_if_set_rx_queue_thread_index
void vnet_hw_if_set_rx_queue_thread_index(vnet_main_t *vnm, u32 queue_index, u32 thread_index)
Definition: rx_queue.c:215
vnet_hw_interface_t::input_node_index
u32 input_node_index
Definition: interface.h:718
vnet_hw_if_generate_rxq_int_poll_vector
void vnet_hw_if_generate_rxq_int_poll_vector(vlib_main_t *vm, vlib_node_runtime_t *node)
Definition: rx_queue.c:232
vnet.h
vlib_node_runtime_t
Definition: node.h:454
vnet_hw_if_get_rx_queue_thread_index
static_always_inline u32 vnet_hw_if_get_rx_queue_thread_index(vnet_main_t *vnm, u32 queue_index)
Definition: rx_queue_funcs.h:88
vnet_main_t::interface_main
vnet_interface_main_t interface_main
Definition: vnet.h:81
vnet_hw_if_rxq_poll_vector_t
Definition: interface.h:746