4 * Copyright 2015 6WIND S.A.
5 * Copyright 2015 Mellanox.
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35 #include <rte_ether.h>
36 #include <rte_ethdev.h>
37 #include <rte_interrupts.h>
38 #include <rte_alarm.h>
41 #include "mlx5_rxtx.h"
42 #include "mlx5_utils.h"
45 * DPDK callback to start the device.
47 * Simulate device start by attaching all configured flows.
50 * Pointer to Ethernet device structure.
53 * 0 on success, negative errno value on failure.
56 mlx5_dev_start(struct rte_eth_dev *dev)
58 struct priv *priv = dev->data->dev_private;
61 if (mlx5_is_secondary())
62 return -E_RTE_SECONDARY;
65 /* Update Rx/Tx callback. */
66 priv_dev_select_tx_function(priv, dev);
67 priv_dev_select_rx_function(priv, dev);
68 DEBUG("%p: allocating and configuring hash RX queues", (void *)dev);
69 err = priv_create_hash_rxqs(priv);
71 err = priv_rehash_flows(priv);
73 ERROR("%p: an error occurred while configuring hash RX queues:"
75 (void *)priv, strerror(err));
78 err = priv_flow_start(priv);
80 ERROR("%p: an error occurred while configuring flows:"
82 (void *)priv, strerror(err));
85 err = priv_rx_intr_vec_enable(priv);
87 ERROR("%p: RX interrupt vector creation failed",
91 priv_dev_interrupt_handler_install(priv, dev);
92 priv_xstats_init(priv);
97 priv_special_flow_disable_all(priv);
98 priv_mac_addrs_disable(priv);
99 priv_destroy_hash_rxqs(priv);
100 priv_flow_stop(priv);
106 * DPDK callback to stop the device.
108 * Simulate device stop by detaching all configured flows.
111 * Pointer to Ethernet device structure.
114 mlx5_dev_stop(struct rte_eth_dev *dev)
116 struct priv *priv = dev->data->dev_private;
118 if (mlx5_is_secondary())
122 dev->data->dev_started = 0;
123 /* Prevent crashes when queues are still in use. */
124 dev->rx_pkt_burst = removed_rx_burst;
125 dev->tx_pkt_burst = removed_tx_burst;
127 usleep(1000 * priv->rxqs_n);
128 DEBUG("%p: cleaning up and destroying hash RX queues", (void *)dev);
129 priv_special_flow_disable_all(priv);
130 priv_mac_addrs_disable(priv);
131 priv_destroy_hash_rxqs(priv);
132 priv_flow_stop(priv);
133 priv_rx_intr_vec_disable(priv);
134 priv_dev_interrupt_handler_uninstall(priv, dev);