4 * Copyright 2015 6WIND S.A.
5 * Copyright 2015 Mellanox.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * * Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
17 * * Neither the name of 6WIND S.A. nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 /* DPDK headers don't like -pedantic. */
36 #pragma GCC diagnostic ignored "-Wpedantic"
38 #include <rte_ether.h>
39 #include <rte_ethdev.h>
40 #include <rte_interrupts.h>
41 #include <rte_alarm.h>
43 #pragma GCC diagnostic error "-Wpedantic"
47 #include "mlx5_rxtx.h"
48 #include "mlx5_utils.h"
51 * DPDK callback to start the device.
53 * Simulate device start by attaching all configured flows.
56 * Pointer to Ethernet device structure.
59 * 0 on success, negative errno value on failure.
62 mlx5_dev_start(struct rte_eth_dev *dev)
64 struct priv *priv = dev->data->dev_private;
67 if (mlx5_is_secondary())
68 return -E_RTE_SECONDARY;
75 DEBUG("%p: allocating and configuring hash RX queues", (void *)dev);
76 err = priv_create_hash_rxqs(priv);
78 err = priv_rehash_flows(priv);
82 ERROR("%p: an error occurred while configuring hash RX queues:"
84 (void *)priv, strerror(err));
87 if (dev->data->dev_conf.fdir_conf.mode != RTE_FDIR_MODE_NONE)
88 priv_fdir_enable(priv);
89 err = priv_flow_start(priv);
92 ERROR("%p: an error occurred while configuring flows:"
94 (void *)priv, strerror(err));
97 priv_dev_interrupt_handler_install(priv, dev);
98 if (dev->data->dev_conf.intr_conf.rxq) {
99 err = priv_intr_efd_enable(priv);
101 err = priv_create_intr_vec(priv);
103 priv_xstats_init(priv);
108 priv_special_flow_disable_all(priv);
109 priv_mac_addrs_disable(priv);
110 priv_destroy_hash_rxqs(priv);
111 priv_flow_stop(priv);
116 * DPDK callback to stop the device.
118 * Simulate device stop by detaching all configured flows.
121 * Pointer to Ethernet device structure.
124 mlx5_dev_stop(struct rte_eth_dev *dev)
126 struct priv *priv = dev->data->dev_private;
128 if (mlx5_is_secondary())
132 if (!priv->started) {
136 DEBUG("%p: cleaning up and destroying hash RX queues", (void *)dev);
137 priv_special_flow_disable_all(priv);
138 priv_mac_addrs_disable(priv);
139 priv_destroy_hash_rxqs(priv);
140 priv_fdir_disable(priv);
141 priv_flow_stop(priv);
142 priv_dev_interrupt_handler_uninstall(priv, dev);
143 if (priv->dev->data->dev_conf.intr_conf.rxq) {
144 priv_destroy_intr_vec(priv);
145 priv_intr_efd_disable(priv);