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 priv_txq_stop(struct priv *priv)
49 for (i = 0; i != priv->txqs_n; ++i)
50 mlx5_priv_txq_release(priv, i);
54 priv_txq_start(struct priv *priv)
59 /* Add memory regions to Tx queues. */
60 for (i = 0; i != priv->txqs_n; ++i) {
63 struct mlx5_txq_ctrl *txq_ctrl = mlx5_priv_txq_get(priv, i);
67 LIST_FOREACH(mr, &priv->mr, next)
68 priv_txq_mp2mr_reg(priv, &txq_ctrl->txq, mr->mp, idx++);
69 txq_alloc_elts(txq_ctrl);
70 txq_ctrl->ibv = mlx5_priv_txq_ibv_new(priv, i);
83 * DPDK callback to start the device.
85 * Simulate device start by attaching all configured flows.
88 * Pointer to Ethernet device structure.
91 * 0 on success, negative errno value on failure.
94 mlx5_dev_start(struct rte_eth_dev *dev)
96 struct priv *priv = dev->data->dev_private;
97 struct mlx5_mr *mr = NULL;
100 if (mlx5_is_secondary())
101 return -E_RTE_SECONDARY;
104 /* Update Rx/Tx callback. */
105 priv_dev_select_rx_function(priv, dev);
106 DEBUG("%p: allocating and configuring hash RX queues", (void *)dev);
107 rte_mempool_walk(mlx5_mp2mr_iter, priv);
108 err = priv_txq_start(priv);
110 ERROR("%p: TXQ allocation failed: %s",
111 (void *)dev, strerror(err));
114 /* Update send callback. */
115 priv_dev_select_tx_function(priv, dev);
116 err = priv_create_hash_rxqs(priv);
118 err = priv_rehash_flows(priv);
120 ERROR("%p: an error occurred while configuring hash RX queues:"
122 (void *)priv, strerror(err));
125 err = priv_flow_start(priv);
127 ERROR("%p: an error occurred while configuring flows:"
129 (void *)priv, strerror(err));
132 err = priv_rx_intr_vec_enable(priv);
134 ERROR("%p: RX interrupt vector creation failed",
138 priv_dev_interrupt_handler_install(priv, dev);
139 priv_xstats_init(priv);
144 LIST_FOREACH(mr, &priv->mr, next)
145 priv_mr_release(priv, mr);
146 priv_special_flow_disable_all(priv);
147 priv_mac_addrs_disable(priv);
148 priv_destroy_hash_rxqs(priv);
149 priv_flow_stop(priv);
156 * DPDK callback to stop the device.
158 * Simulate device stop by detaching all configured flows.
161 * Pointer to Ethernet device structure.
164 mlx5_dev_stop(struct rte_eth_dev *dev)
166 struct priv *priv = dev->data->dev_private;
169 if (mlx5_is_secondary())
173 dev->data->dev_started = 0;
174 /* Prevent crashes when queues are still in use. */
175 dev->rx_pkt_burst = removed_rx_burst;
176 dev->tx_pkt_burst = removed_tx_burst;
178 usleep(1000 * priv->rxqs_n);
179 DEBUG("%p: cleaning up and destroying hash RX queues", (void *)dev);
180 priv_special_flow_disable_all(priv);
181 priv_mac_addrs_disable(priv);
182 priv_destroy_hash_rxqs(priv);
183 priv_flow_stop(priv);
184 priv_rx_intr_vec_disable(priv);
186 LIST_FOREACH(mr, &priv->mr, next) {
187 priv_mr_release(priv, mr);
189 priv_dev_interrupt_handler_uninstall(priv, dev);