1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright 2015 6WIND S.A.
3 * Copyright 2015 Mellanox Technologies, Ltd
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 mlx5_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, a negative errno value otherwise and rte_errno is set.
43 mlx5_txq_start(struct rte_eth_dev *dev)
45 struct mlx5_priv *priv = dev->data->dev_private;
49 for (i = 0; i != priv->txqs_n; ++i) {
50 struct mlx5_txq_ctrl *txq_ctrl = mlx5_txq_get(dev, i);
54 txq_alloc_elts(txq_ctrl);
55 txq_ctrl->obj = mlx5_txq_obj_new(dev, i);
63 ret = rte_errno; /* Save rte_errno before cleanup. */
65 mlx5_txq_release(dev, i);
67 rte_errno = ret; /* Restore rte_errno. */
72 * Stop traffic on Rx queues.
75 * Pointer to Ethernet device structure.
78 mlx5_rxq_stop(struct rte_eth_dev *dev)
80 struct mlx5_priv *priv = dev->data->dev_private;
83 for (i = 0; i != priv->rxqs_n; ++i)
84 mlx5_rxq_release(dev, i);
88 * Start traffic on Rx queues.
91 * Pointer to Ethernet device structure.
94 * 0 on success, a negative errno value otherwise and rte_errno is set.
97 mlx5_rxq_start(struct rte_eth_dev *dev)
99 struct mlx5_priv *priv = dev->data->dev_private;
102 enum mlx5_rxq_obj_type obj_type = MLX5_RXQ_OBJ_TYPE_IBV;
104 for (i = 0; i < priv->rxqs_n; ++i) {
105 if ((*priv->rxqs)[i]->lro) {
106 obj_type = MLX5_RXQ_OBJ_TYPE_DEVX_RQ;
110 /* Allocate/reuse/resize mempool for Multi-Packet RQ. */
111 if (mlx5_mprq_alloc_mp(dev)) {
112 /* Should not release Rx queues but return immediately. */
115 for (i = 0; i != priv->rxqs_n; ++i) {
116 struct mlx5_rxq_ctrl *rxq_ctrl = mlx5_rxq_get(dev, i);
117 struct rte_mempool *mp;
121 if (rxq_ctrl->type == MLX5_RXQ_TYPE_HAIRPIN) {
122 rxq_ctrl->obj = mlx5_rxq_obj_new
123 (dev, i, MLX5_RXQ_OBJ_TYPE_DEVX_HAIRPIN);
128 /* Pre-register Rx mempool. */
129 mp = mlx5_rxq_mprq_enabled(&rxq_ctrl->rxq) ?
130 rxq_ctrl->rxq.mprq_mp : rxq_ctrl->rxq.mp;
132 "port %u Rx queue %u registering"
133 " mp %s having %u chunks",
134 dev->data->port_id, rxq_ctrl->rxq.idx,
135 mp->name, mp->nb_mem_chunks);
136 mlx5_mr_update_mp(dev, &rxq_ctrl->rxq.mr_ctrl, mp);
137 ret = rxq_alloc_elts(rxq_ctrl);
140 rxq_ctrl->obj = mlx5_rxq_obj_new(dev, i, obj_type);
143 if (obj_type == MLX5_RXQ_OBJ_TYPE_IBV)
144 rxq_ctrl->wqn = rxq_ctrl->obj->wq->wq_num;
145 else if (obj_type == MLX5_RXQ_OBJ_TYPE_DEVX_RQ)
146 rxq_ctrl->wqn = rxq_ctrl->obj->rq->id;
150 ret = rte_errno; /* Save rte_errno before cleanup. */
152 mlx5_rxq_release(dev, i);
154 rte_errno = ret; /* Restore rte_errno. */
159 * DPDK callback to start the device.
161 * Simulate device start by attaching all configured flows.
164 * Pointer to Ethernet device structure.
167 * 0 on success, a negative errno value otherwise and rte_errno is set.
170 mlx5_dev_start(struct rte_eth_dev *dev)
172 struct mlx5_priv *priv = dev->data->dev_private;
175 DRV_LOG(DEBUG, "port %u starting device", dev->data->port_id);
176 ret = mlx5_txq_start(dev);
178 DRV_LOG(ERR, "port %u Tx queue allocation failed: %s",
179 dev->data->port_id, strerror(rte_errno));
182 ret = mlx5_rxq_start(dev);
184 DRV_LOG(ERR, "port %u Rx queue allocation failed: %s",
185 dev->data->port_id, strerror(rte_errno));
189 dev->data->dev_started = 1;
190 ret = mlx5_rx_intr_vec_enable(dev);
192 DRV_LOG(ERR, "port %u Rx interrupt vector creation failed",
196 mlx5_stats_init(dev);
197 ret = mlx5_traffic_enable(dev);
199 DRV_LOG(DEBUG, "port %u failed to set defaults flows",
203 ret = mlx5_flow_start(dev, &priv->flows);
205 DRV_LOG(DEBUG, "port %u failed to set flows",
210 dev->tx_pkt_burst = mlx5_select_tx_function(dev);
211 dev->rx_pkt_burst = mlx5_select_rx_function(dev);
212 /* Enable datapath on secondary process. */
213 mlx5_mp_req_start_rxtx(dev);
214 mlx5_dev_interrupt_handler_install(dev);
217 ret = rte_errno; /* Save rte_errno before cleanup. */
219 dev->data->dev_started = 0;
220 mlx5_flow_stop(dev, &priv->flows);
221 mlx5_traffic_disable(dev);
224 rte_errno = ret; /* Restore rte_errno. */
229 * DPDK callback to stop the device.
231 * Simulate device stop by detaching all configured flows.
234 * Pointer to Ethernet device structure.
237 mlx5_dev_stop(struct rte_eth_dev *dev)
239 struct mlx5_priv *priv = dev->data->dev_private;
241 dev->data->dev_started = 0;
242 /* Prevent crashes when queues are still in use. */
243 dev->rx_pkt_burst = removed_rx_burst;
244 dev->tx_pkt_burst = removed_tx_burst;
246 /* Disable datapath on secondary process. */
247 mlx5_mp_req_stop_rxtx(dev);
248 usleep(1000 * priv->rxqs_n);
249 DRV_LOG(DEBUG, "port %u stopping device", dev->data->port_id);
250 mlx5_flow_stop(dev, &priv->flows);
251 mlx5_traffic_disable(dev);
252 mlx5_rx_intr_vec_disable(dev);
253 mlx5_dev_interrupt_handler_uninstall(dev);
259 * Enable traffic flows configured by control plane
262 * Pointer to Ethernet device private data.
264 * Pointer to Ethernet device structure.
267 * 0 on success, a negative errno value otherwise and rte_errno is set.
270 mlx5_traffic_enable(struct rte_eth_dev *dev)
272 struct mlx5_priv *priv = dev->data->dev_private;
273 struct rte_flow_item_eth bcast = {
274 .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
276 struct rte_flow_item_eth ipv6_multi_spec = {
277 .dst.addr_bytes = "\x33\x33\x00\x00\x00\x00",
279 struct rte_flow_item_eth ipv6_multi_mask = {
280 .dst.addr_bytes = "\xff\xff\x00\x00\x00\x00",
282 struct rte_flow_item_eth unicast = {
283 .src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
285 struct rte_flow_item_eth unicast_mask = {
286 .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
288 const unsigned int vlan_filter_n = priv->vlan_filter_n;
289 const struct rte_ether_addr cmp = {
290 .addr_bytes = "\x00\x00\x00\x00\x00\x00",
296 if (priv->config.dv_esw_en && !priv->config.vf)
297 if (!mlx5_flow_create_esw_table_zero_flow(dev))
301 if (dev->data->promiscuous) {
302 struct rte_flow_item_eth promisc = {
303 .dst.addr_bytes = "\x00\x00\x00\x00\x00\x00",
304 .src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
308 ret = mlx5_ctrl_flow(dev, &promisc, &promisc);
312 if (dev->data->all_multicast) {
313 struct rte_flow_item_eth multicast = {
314 .dst.addr_bytes = "\x01\x00\x00\x00\x00\x00",
315 .src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
319 ret = mlx5_ctrl_flow(dev, &multicast, &multicast);
323 /* Add broadcast/multicast flows. */
324 for (i = 0; i != vlan_filter_n; ++i) {
325 uint16_t vlan = priv->vlan_filter[i];
327 struct rte_flow_item_vlan vlan_spec = {
328 .tci = rte_cpu_to_be_16(vlan),
330 struct rte_flow_item_vlan vlan_mask =
331 rte_flow_item_vlan_mask;
333 ret = mlx5_ctrl_flow_vlan(dev, &bcast, &bcast,
334 &vlan_spec, &vlan_mask);
337 ret = mlx5_ctrl_flow_vlan(dev, &ipv6_multi_spec,
339 &vlan_spec, &vlan_mask);
343 if (!vlan_filter_n) {
344 ret = mlx5_ctrl_flow(dev, &bcast, &bcast);
347 ret = mlx5_ctrl_flow(dev, &ipv6_multi_spec,
353 /* Add MAC address flows. */
354 for (i = 0; i != MLX5_MAX_MAC_ADDRESSES; ++i) {
355 struct rte_ether_addr *mac = &dev->data->mac_addrs[i];
357 if (!memcmp(mac, &cmp, sizeof(*mac)))
359 memcpy(&unicast.dst.addr_bytes,
362 for (j = 0; j != vlan_filter_n; ++j) {
363 uint16_t vlan = priv->vlan_filter[j];
365 struct rte_flow_item_vlan vlan_spec = {
366 .tci = rte_cpu_to_be_16(vlan),
368 struct rte_flow_item_vlan vlan_mask =
369 rte_flow_item_vlan_mask;
371 ret = mlx5_ctrl_flow_vlan(dev, &unicast,
378 if (!vlan_filter_n) {
379 ret = mlx5_ctrl_flow(dev, &unicast, &unicast_mask);
386 ret = rte_errno; /* Save rte_errno before cleanup. */
387 mlx5_flow_list_flush(dev, &priv->ctrl_flows);
388 rte_errno = ret; /* Restore rte_errno. */
394 * Disable traffic flows configured by control plane
397 * Pointer to Ethernet device private data.
400 mlx5_traffic_disable(struct rte_eth_dev *dev)
402 struct mlx5_priv *priv = dev->data->dev_private;
404 mlx5_flow_list_flush(dev, &priv->ctrl_flows);
408 * Restart traffic flows configured by control plane
411 * Pointer to Ethernet device private data.
414 * 0 on success, a negative errno value otherwise and rte_errno is set.
417 mlx5_traffic_restart(struct rte_eth_dev *dev)
419 if (dev->data->dev_started) {
420 mlx5_traffic_disable(dev);
421 return mlx5_traffic_enable(dev);