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->ibv = mlx5_txq_ibv_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 /* Pre-register Rx mempool. */
122 mp = mlx5_rxq_mprq_enabled(&rxq_ctrl->rxq) ?
123 rxq_ctrl->rxq.mprq_mp : rxq_ctrl->rxq.mp;
125 "port %u Rx queue %u registering"
126 " mp %s having %u chunks",
127 dev->data->port_id, rxq_ctrl->rxq.idx,
128 mp->name, mp->nb_mem_chunks);
129 mlx5_mr_update_mp(dev, &rxq_ctrl->rxq.mr_ctrl, mp);
130 ret = rxq_alloc_elts(rxq_ctrl);
133 rxq_ctrl->obj = mlx5_rxq_obj_new(dev, i, obj_type);
136 if (obj_type == MLX5_RXQ_OBJ_TYPE_IBV)
137 rxq_ctrl->wqn = rxq_ctrl->obj->wq->wq_num;
138 else if (obj_type == MLX5_RXQ_OBJ_TYPE_DEVX_RQ)
139 rxq_ctrl->wqn = rxq_ctrl->obj->rq->id;
143 ret = rte_errno; /* Save rte_errno before cleanup. */
145 mlx5_rxq_release(dev, i);
147 rte_errno = ret; /* Restore rte_errno. */
152 * DPDK callback to start the device.
154 * Simulate device start by attaching all configured flows.
157 * Pointer to Ethernet device structure.
160 * 0 on success, a negative errno value otherwise and rte_errno is set.
163 mlx5_dev_start(struct rte_eth_dev *dev)
165 struct mlx5_priv *priv = dev->data->dev_private;
168 DRV_LOG(DEBUG, "port %u starting device", dev->data->port_id);
169 ret = mlx5_txq_start(dev);
171 DRV_LOG(ERR, "port %u Tx queue allocation failed: %s",
172 dev->data->port_id, strerror(rte_errno));
175 ret = mlx5_rxq_start(dev);
177 DRV_LOG(ERR, "port %u Rx queue allocation failed: %s",
178 dev->data->port_id, strerror(rte_errno));
182 dev->data->dev_started = 1;
183 ret = mlx5_rx_intr_vec_enable(dev);
185 DRV_LOG(ERR, "port %u Rx interrupt vector creation failed",
189 mlx5_stats_init(dev);
190 ret = mlx5_traffic_enable(dev);
192 DRV_LOG(DEBUG, "port %u failed to set defaults flows",
196 ret = mlx5_flow_start(dev, &priv->flows);
198 DRV_LOG(DEBUG, "port %u failed to set flows",
203 dev->tx_pkt_burst = mlx5_select_tx_function(dev);
204 dev->rx_pkt_burst = mlx5_select_rx_function(dev);
205 /* Enable datapath on secondary process. */
206 mlx5_mp_req_start_rxtx(dev);
207 mlx5_dev_interrupt_handler_install(dev);
210 ret = rte_errno; /* Save rte_errno before cleanup. */
212 dev->data->dev_started = 0;
213 mlx5_flow_stop(dev, &priv->flows);
214 mlx5_traffic_disable(dev);
217 rte_errno = ret; /* Restore rte_errno. */
222 * DPDK callback to stop the device.
224 * Simulate device stop by detaching all configured flows.
227 * Pointer to Ethernet device structure.
230 mlx5_dev_stop(struct rte_eth_dev *dev)
232 struct mlx5_priv *priv = dev->data->dev_private;
234 dev->data->dev_started = 0;
235 /* Prevent crashes when queues are still in use. */
236 dev->rx_pkt_burst = removed_rx_burst;
237 dev->tx_pkt_burst = removed_tx_burst;
239 /* Disable datapath on secondary process. */
240 mlx5_mp_req_stop_rxtx(dev);
241 usleep(1000 * priv->rxqs_n);
242 DRV_LOG(DEBUG, "port %u stopping device", dev->data->port_id);
243 mlx5_flow_stop(dev, &priv->flows);
244 mlx5_traffic_disable(dev);
245 mlx5_rx_intr_vec_disable(dev);
246 mlx5_dev_interrupt_handler_uninstall(dev);
252 * Enable traffic flows configured by control plane
255 * Pointer to Ethernet device private data.
257 * Pointer to Ethernet device structure.
260 * 0 on success, a negative errno value otherwise and rte_errno is set.
263 mlx5_traffic_enable(struct rte_eth_dev *dev)
265 struct mlx5_priv *priv = dev->data->dev_private;
266 struct rte_flow_item_eth bcast = {
267 .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
269 struct rte_flow_item_eth ipv6_multi_spec = {
270 .dst.addr_bytes = "\x33\x33\x00\x00\x00\x00",
272 struct rte_flow_item_eth ipv6_multi_mask = {
273 .dst.addr_bytes = "\xff\xff\x00\x00\x00\x00",
275 struct rte_flow_item_eth unicast = {
276 .src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
278 struct rte_flow_item_eth unicast_mask = {
279 .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
281 const unsigned int vlan_filter_n = priv->vlan_filter_n;
282 const struct rte_ether_addr cmp = {
283 .addr_bytes = "\x00\x00\x00\x00\x00\x00",
289 if (priv->config.dv_esw_en && !priv->config.vf)
290 if (!mlx5_flow_create_esw_table_zero_flow(dev))
294 if (dev->data->promiscuous) {
295 struct rte_flow_item_eth promisc = {
296 .dst.addr_bytes = "\x00\x00\x00\x00\x00\x00",
297 .src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
301 ret = mlx5_ctrl_flow(dev, &promisc, &promisc);
305 if (dev->data->all_multicast) {
306 struct rte_flow_item_eth multicast = {
307 .dst.addr_bytes = "\x01\x00\x00\x00\x00\x00",
308 .src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
312 ret = mlx5_ctrl_flow(dev, &multicast, &multicast);
316 /* Add broadcast/multicast flows. */
317 for (i = 0; i != vlan_filter_n; ++i) {
318 uint16_t vlan = priv->vlan_filter[i];
320 struct rte_flow_item_vlan vlan_spec = {
321 .tci = rte_cpu_to_be_16(vlan),
323 struct rte_flow_item_vlan vlan_mask =
324 rte_flow_item_vlan_mask;
326 ret = mlx5_ctrl_flow_vlan(dev, &bcast, &bcast,
327 &vlan_spec, &vlan_mask);
330 ret = mlx5_ctrl_flow_vlan(dev, &ipv6_multi_spec,
332 &vlan_spec, &vlan_mask);
336 if (!vlan_filter_n) {
337 ret = mlx5_ctrl_flow(dev, &bcast, &bcast);
340 ret = mlx5_ctrl_flow(dev, &ipv6_multi_spec,
346 /* Add MAC address flows. */
347 for (i = 0; i != MLX5_MAX_MAC_ADDRESSES; ++i) {
348 struct rte_ether_addr *mac = &dev->data->mac_addrs[i];
350 if (!memcmp(mac, &cmp, sizeof(*mac)))
352 memcpy(&unicast.dst.addr_bytes,
355 for (j = 0; j != vlan_filter_n; ++j) {
356 uint16_t vlan = priv->vlan_filter[j];
358 struct rte_flow_item_vlan vlan_spec = {
359 .tci = rte_cpu_to_be_16(vlan),
361 struct rte_flow_item_vlan vlan_mask =
362 rte_flow_item_vlan_mask;
364 ret = mlx5_ctrl_flow_vlan(dev, &unicast,
371 if (!vlan_filter_n) {
372 ret = mlx5_ctrl_flow(dev, &unicast, &unicast_mask);
379 ret = rte_errno; /* Save rte_errno before cleanup. */
380 mlx5_flow_list_flush(dev, &priv->ctrl_flows);
381 rte_errno = ret; /* Restore rte_errno. */
387 * Disable traffic flows configured by control plane
390 * Pointer to Ethernet device private data.
393 mlx5_traffic_disable(struct rte_eth_dev *dev)
395 struct mlx5_priv *priv = dev->data->dev_private;
397 mlx5_flow_list_flush(dev, &priv->ctrl_flows);
401 * Restart traffic flows configured by control plane
404 * Pointer to Ethernet device private data.
407 * 0 on success, a negative errno value otherwise and rte_errno is set.
410 mlx5_traffic_restart(struct rte_eth_dev *dev)
412 if (dev->data->dev_started) {
413 mlx5_traffic_disable(dev);
414 return mlx5_traffic_enable(dev);