1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright 2015 6WIND S.A.
3 * Copyright 2015 Mellanox.
9 #include <rte_ethdev_driver.h>
10 #include <rte_interrupts.h>
11 #include <rte_alarm.h>
14 #include "mlx5_rxtx.h"
15 #include "mlx5_utils.h"
18 * Stop traffic on Tx queues.
21 * Pointer to Ethernet device structure.
24 mlx5_txq_stop(struct rte_eth_dev *dev)
26 struct priv *priv = dev->data->dev_private;
29 for (i = 0; i != priv->txqs_n; ++i)
30 mlx5_txq_release(dev, i);
34 * Start traffic on Tx queues.
37 * Pointer to Ethernet device structure.
40 * 0 on success, errno on error.
43 mlx5_txq_start(struct rte_eth_dev *dev)
45 struct priv *priv = dev->data->dev_private;
49 /* Add memory regions to Tx queues. */
50 for (i = 0; i != priv->txqs_n; ++i) {
53 struct mlx5_txq_ctrl *txq_ctrl = mlx5_txq_get(dev, i);
57 LIST_FOREACH(mr, &priv->mr, next) {
58 mlx5_txq_mp2mr_reg(&txq_ctrl->txq, mr->mp, idx++);
59 if (idx == MLX5_PMD_TX_MP_CACHE)
62 txq_alloc_elts(txq_ctrl);
63 txq_ctrl->ibv = mlx5_txq_ibv_new(dev, i);
69 ret = mlx5_tx_uar_remap(dev, priv->ctx->cmd_fd);
79 * Stop traffic on Rx queues.
82 * Pointer to Ethernet device structure.
85 mlx5_rxq_stop(struct rte_eth_dev *dev)
87 struct priv *priv = dev->data->dev_private;
90 for (i = 0; i != priv->rxqs_n; ++i)
91 mlx5_rxq_release(dev, i);
95 * Start traffic on Rx queues.
98 * Pointer to Ethernet device structure.
101 * 0 on success, errno on error.
104 mlx5_rxq_start(struct rte_eth_dev *dev)
106 struct priv *priv = dev->data->dev_private;
110 for (i = 0; i != priv->rxqs_n; ++i) {
111 struct mlx5_rxq_ctrl *rxq_ctrl = mlx5_rxq_get(dev, i);
115 ret = rxq_alloc_elts(rxq_ctrl);
118 rxq_ctrl->ibv = mlx5_rxq_ibv_new(dev, i);
119 if (!rxq_ctrl->ibv) {
131 * DPDK callback to start the device.
133 * Simulate device start by attaching all configured flows.
136 * Pointer to Ethernet device structure.
139 * 0 on success, negative errno value on failure.
142 mlx5_dev_start(struct rte_eth_dev *dev)
144 struct priv *priv = dev->data->dev_private;
145 struct mlx5_mr *mr = NULL;
148 dev->data->dev_started = 1;
149 err = mlx5_flow_create_drop_queue(dev);
151 ERROR("%p: Drop queue allocation failed: %s",
152 (void *)dev, strerror(err));
155 DEBUG("%p: allocating and configuring hash RX queues", (void *)dev);
156 rte_mempool_walk(mlx5_mp2mr_iter, priv);
157 err = mlx5_txq_start(dev);
159 ERROR("%p: TXQ allocation failed: %s",
160 (void *)dev, strerror(err));
163 err = mlx5_rxq_start(dev);
165 ERROR("%p: RXQ allocation failed: %s",
166 (void *)dev, strerror(err));
169 err = mlx5_rx_intr_vec_enable(dev);
171 ERROR("%p: RX interrupt vector creation failed",
175 mlx5_xstats_init(dev);
176 /* Update link status and Tx/Rx callbacks for the first time. */
177 memset(&dev->data->dev_link, 0, sizeof(struct rte_eth_link));
178 INFO("Forcing port %u link to be up", dev->data->port_id);
179 err = mlx5_force_link_status_change(dev, ETH_LINK_UP);
181 DEBUG("Failed to set port %u link to be up",
185 mlx5_dev_interrupt_handler_install(dev);
189 dev->data->dev_started = 0;
190 for (mr = LIST_FIRST(&priv->mr); mr; mr = LIST_FIRST(&priv->mr))
192 mlx5_flow_stop(dev, &priv->flows);
193 mlx5_traffic_disable(dev);
196 mlx5_flow_delete_drop_queue(dev);
201 * DPDK callback to stop the device.
203 * Simulate device stop by detaching all configured flows.
206 * Pointer to Ethernet device structure.
209 mlx5_dev_stop(struct rte_eth_dev *dev)
211 struct priv *priv = dev->data->dev_private;
214 dev->data->dev_started = 0;
215 /* Prevent crashes when queues are still in use. */
216 dev->rx_pkt_burst = removed_rx_burst;
217 dev->tx_pkt_burst = removed_tx_burst;
219 usleep(1000 * priv->rxqs_n);
220 DEBUG("%p: cleaning up and destroying hash RX queues", (void *)dev);
221 mlx5_flow_stop(dev, &priv->flows);
222 mlx5_traffic_disable(dev);
223 mlx5_rx_intr_vec_disable(dev);
224 mlx5_dev_interrupt_handler_uninstall(dev);
227 for (mr = LIST_FIRST(&priv->mr); mr; mr = LIST_FIRST(&priv->mr))
229 mlx5_flow_delete_drop_queue(dev);
233 * Enable traffic flows configured by control plane
236 * Pointer to Ethernet device private data.
238 * Pointer to Ethernet device structure.
244 mlx5_traffic_enable(struct rte_eth_dev *dev)
246 struct priv *priv = dev->data->dev_private;
247 struct rte_flow_item_eth bcast = {
248 .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
250 struct rte_flow_item_eth ipv6_multi_spec = {
251 .dst.addr_bytes = "\x33\x33\x00\x00\x00\x00",
253 struct rte_flow_item_eth ipv6_multi_mask = {
254 .dst.addr_bytes = "\xff\xff\x00\x00\x00\x00",
256 struct rte_flow_item_eth unicast = {
257 .src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
259 struct rte_flow_item_eth unicast_mask = {
260 .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
262 const unsigned int vlan_filter_n = priv->vlan_filter_n;
263 const struct ether_addr cmp = {
264 .addr_bytes = "\x00\x00\x00\x00\x00\x00",
272 if (dev->data->promiscuous) {
273 struct rte_flow_item_eth promisc = {
274 .dst.addr_bytes = "\x00\x00\x00\x00\x00\x00",
275 .src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
279 claim_zero(mlx5_ctrl_flow(dev, &promisc, &promisc));
282 if (dev->data->all_multicast) {
283 struct rte_flow_item_eth multicast = {
284 .dst.addr_bytes = "\x01\x00\x00\x00\x00\x00",
285 .src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
289 claim_zero(mlx5_ctrl_flow(dev, &multicast, &multicast));
291 /* Add broadcast/multicast flows. */
292 for (i = 0; i != vlan_filter_n; ++i) {
293 uint16_t vlan = priv->vlan_filter[i];
295 struct rte_flow_item_vlan vlan_spec = {
296 .tci = rte_cpu_to_be_16(vlan),
298 struct rte_flow_item_vlan vlan_mask = {
302 ret = mlx5_ctrl_flow_vlan(dev, &bcast, &bcast,
303 &vlan_spec, &vlan_mask);
306 ret = mlx5_ctrl_flow_vlan(dev, &ipv6_multi_spec,
308 &vlan_spec, &vlan_mask);
312 if (!vlan_filter_n) {
313 ret = mlx5_ctrl_flow(dev, &bcast, &bcast);
316 ret = mlx5_ctrl_flow(dev, &ipv6_multi_spec,
322 /* Add MAC address flows. */
323 for (i = 0; i != MLX5_MAX_MAC_ADDRESSES; ++i) {
324 struct ether_addr *mac = &dev->data->mac_addrs[i];
326 if (!memcmp(mac, &cmp, sizeof(*mac)))
328 memcpy(&unicast.dst.addr_bytes,
331 for (j = 0; j != vlan_filter_n; ++j) {
332 uint16_t vlan = priv->vlan_filter[j];
334 struct rte_flow_item_vlan vlan_spec = {
335 .tci = rte_cpu_to_be_16(vlan),
337 struct rte_flow_item_vlan vlan_mask = {
341 ret = mlx5_ctrl_flow_vlan(dev, &unicast,
348 if (!vlan_filter_n) {
349 ret = mlx5_ctrl_flow(dev, &unicast,
362 * Disable traffic flows configured by control plane
365 * Pointer to Ethernet device private data.
368 mlx5_traffic_disable(struct rte_eth_dev *dev)
370 struct priv *priv = dev->data->dev_private;
372 mlx5_flow_list_flush(dev, &priv->ctrl_flows);
376 * Restart traffic flows configured by control plane
379 * Pointer to Ethernet device private data.
385 mlx5_traffic_restart(struct rte_eth_dev *dev)
387 if (dev->data->dev_started) {
388 mlx5_traffic_disable(dev);
389 mlx5_traffic_enable(dev);