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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
/*-
* BSD LICENSE
*
* Copyright 2015 6WIND S.A.
* Copyright 2015 Mellanox.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of 6WIND S.A. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/* DPDK headers don't like -pedantic. */
#ifdef PEDANTIC
#pragma GCC diagnostic ignored "-Wpedantic"
#endif
#include <rte_ether.h>
#include <rte_ethdev.h>
#include <rte_interrupts.h>
#include <rte_alarm.h>
#ifdef PEDANTIC
#pragma GCC diagnostic error "-Wpedantic"
#endif
#include "mlx5.h"
#include "mlx5_rxtx.h"
#include "mlx5_utils.h"
/**
* DPDK callback to start the device.
*
* Simulate device start by attaching all configured flows.
*
* @param dev
* Pointer to Ethernet device structure.
*
* @return
* 0 on success, negative errno value on failure.
*/
int
mlx5_dev_start(struct rte_eth_dev *dev)
{
struct priv *priv = dev->data->dev_private;
int err;
if (mlx5_is_secondary())
return -E_RTE_SECONDARY;
priv_lock(priv);
if (priv->started) {
priv_unlock(priv);
return 0;
}
DEBUG("%p: allocating and configuring hash RX queues", (void *)dev);
err = priv_create_hash_rxqs(priv);
if (!err)
err = priv_rehash_flows(priv);
if (!err)
priv->started = 1;
else {
ERROR("%p: an error occurred while configuring hash RX queues:"
" %s",
(void *)priv, strerror(err));
goto error;
}
if (dev->data->dev_conf.fdir_conf.mode != RTE_FDIR_MODE_NONE)
priv_fdir_enable(priv);
err = priv_flow_start(priv);
if (err) {
priv->started = 0;
ERROR("%p: an error occurred while configuring flows:"
" %s",
(void *)priv, strerror(err));
goto error;
}
priv_dev_interrupt_handler_install(priv, dev);
if (dev->data->dev_conf.intr_conf.rxq) {
err = priv_intr_efd_enable(priv);
if (!err)
err = priv_create_intr_vec(priv);
}
priv_xstats_init(priv);
priv_unlock(priv);
return 0;
error:
/* Rollback. */
priv_special_flow_disable_all(priv);
priv_mac_addrs_disable(priv);
priv_destroy_hash_rxqs(priv);
priv_flow_stop(priv);
priv_unlock(priv);
return -err;
}
/**
* DPDK callback to stop the device.
*
* Simulate device stop by detaching all configured flows.
*
* @param dev
* Pointer to Ethernet device structure.
*/
void
mlx5_dev_stop(struct rte_eth_dev *dev)
{
struct priv *priv = dev->data->dev_private;
if (mlx5_is_secondary())
return;
priv_lock(priv);
if (!priv->started) {
priv_unlock(priv);
return;
}
DEBUG("%p: cleaning up and destroying hash RX queues", (void *)dev);
priv_special_flow_disable_all(priv);
priv_mac_addrs_disable(priv);
priv_destroy_hash_rxqs(priv);
priv_fdir_disable(priv);
priv_flow_stop(priv);
priv_dev_interrupt_handler_uninstall(priv, dev);
if (priv->dev->data->dev_conf.intr_conf.rxq) {
priv_destroy_intr_vec(priv);
priv_intr_efd_disable(priv);
}
priv->started = 0;
priv_unlock(priv);
}
|
