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;
103 /* Allocate/reuse/resize mempool for Multi-Packet RQ. */
104 if (mlx5_mprq_alloc_mp(dev)) {
105 /* Should not release Rx queues but return immediately. */
108 for (i = 0; i != priv->rxqs_n; ++i) {
109 struct mlx5_rxq_ctrl *rxq_ctrl = mlx5_rxq_get(dev, i);
110 struct rte_mempool *mp;
114 /* Pre-register Rx mempool. */
115 mp = mlx5_rxq_mprq_enabled(&rxq_ctrl->rxq) ?
116 rxq_ctrl->rxq.mprq_mp : rxq_ctrl->rxq.mp;
118 "port %u Rx queue %u registering"
119 " mp %s having %u chunks",
120 dev->data->port_id, rxq_ctrl->rxq.idx,
121 mp->name, mp->nb_mem_chunks);
122 mlx5_mr_update_mp(dev, &rxq_ctrl->rxq.mr_ctrl, mp);
123 ret = rxq_alloc_elts(rxq_ctrl);
126 rxq_ctrl->ibv = mlx5_rxq_ibv_new(dev, i);
132 ret = rte_errno; /* Save rte_errno before cleanup. */
134 mlx5_rxq_release(dev, i);
136 rte_errno = ret; /* Restore rte_errno. */
141 * DPDK callback to start the device.
143 * Simulate device start by attaching all configured flows.
146 * Pointer to Ethernet device structure.
149 * 0 on success, a negative errno value otherwise and rte_errno is set.
152 mlx5_dev_start(struct rte_eth_dev *dev)
154 struct mlx5_priv *priv = dev->data->dev_private;
157 DRV_LOG(DEBUG, "port %u starting device", dev->data->port_id);
158 ret = mlx5_txq_start(dev);
160 DRV_LOG(ERR, "port %u Tx queue allocation failed: %s",
161 dev->data->port_id, strerror(rte_errno));
164 ret = mlx5_rxq_start(dev);
166 DRV_LOG(ERR, "port %u Rx queue allocation failed: %s",
167 dev->data->port_id, strerror(rte_errno));
171 dev->data->dev_started = 1;
172 ret = mlx5_rx_intr_vec_enable(dev);
174 DRV_LOG(ERR, "port %u Rx interrupt vector creation failed",
178 mlx5_stats_init(dev);
179 ret = mlx5_traffic_enable(dev);
181 DRV_LOG(DEBUG, "port %u failed to set defaults flows",
185 ret = mlx5_flow_start(dev, &priv->flows);
187 DRV_LOG(DEBUG, "port %u failed to set flows",
192 dev->tx_pkt_burst = mlx5_select_tx_function(dev);
193 dev->rx_pkt_burst = mlx5_select_rx_function(dev);
194 /* Enable datapath on secondary process. */
195 mlx5_mp_req_start_rxtx(dev);
196 mlx5_dev_interrupt_handler_install(dev);
199 ret = rte_errno; /* Save rte_errno before cleanup. */
201 dev->data->dev_started = 0;
202 mlx5_flow_stop(dev, &priv->flows);
203 mlx5_traffic_disable(dev);
206 rte_errno = ret; /* Restore rte_errno. */
211 * DPDK callback to stop the device.
213 * Simulate device stop by detaching all configured flows.
216 * Pointer to Ethernet device structure.
219 mlx5_dev_stop(struct rte_eth_dev *dev)
221 struct mlx5_priv *priv = dev->data->dev_private;
223 dev->data->dev_started = 0;
224 /* Prevent crashes when queues are still in use. */
225 dev->rx_pkt_burst = removed_rx_burst;
226 dev->tx_pkt_burst = removed_tx_burst;
228 /* Disable datapath on secondary process. */
229 mlx5_mp_req_stop_rxtx(dev);
230 usleep(1000 * priv->rxqs_n);
231 DRV_LOG(DEBUG, "port %u stopping device", dev->data->port_id);
232 mlx5_flow_stop(dev, &priv->flows);
233 mlx5_traffic_disable(dev);
234 mlx5_rx_intr_vec_disable(dev);
235 mlx5_dev_interrupt_handler_uninstall(dev);
241 * Enable traffic flows configured by control plane
244 * Pointer to Ethernet device private data.
246 * Pointer to Ethernet device structure.
249 * 0 on success, a negative errno value otherwise and rte_errno is set.
252 mlx5_traffic_enable(struct rte_eth_dev *dev)
254 struct mlx5_priv *priv = dev->data->dev_private;
255 struct rte_flow_item_eth bcast = {
256 .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
258 struct rte_flow_item_eth ipv6_multi_spec = {
259 .dst.addr_bytes = "\x33\x33\x00\x00\x00\x00",
261 struct rte_flow_item_eth ipv6_multi_mask = {
262 .dst.addr_bytes = "\xff\xff\x00\x00\x00\x00",
264 struct rte_flow_item_eth unicast = {
265 .src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
267 struct rte_flow_item_eth unicast_mask = {
268 .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
270 const unsigned int vlan_filter_n = priv->vlan_filter_n;
271 const struct ether_addr cmp = {
272 .addr_bytes = "\x00\x00\x00\x00\x00\x00",
280 if (dev->data->promiscuous) {
281 struct rte_flow_item_eth promisc = {
282 .dst.addr_bytes = "\x00\x00\x00\x00\x00\x00",
283 .src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
287 ret = mlx5_ctrl_flow(dev, &promisc, &promisc);
291 if (dev->data->all_multicast) {
292 struct rte_flow_item_eth multicast = {
293 .dst.addr_bytes = "\x01\x00\x00\x00\x00\x00",
294 .src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
298 ret = mlx5_ctrl_flow(dev, &multicast, &multicast);
302 /* Add broadcast/multicast flows. */
303 for (i = 0; i != vlan_filter_n; ++i) {
304 uint16_t vlan = priv->vlan_filter[i];
306 struct rte_flow_item_vlan vlan_spec = {
307 .tci = rte_cpu_to_be_16(vlan),
309 struct rte_flow_item_vlan vlan_mask =
310 rte_flow_item_vlan_mask;
312 ret = mlx5_ctrl_flow_vlan(dev, &bcast, &bcast,
313 &vlan_spec, &vlan_mask);
316 ret = mlx5_ctrl_flow_vlan(dev, &ipv6_multi_spec,
318 &vlan_spec, &vlan_mask);
322 if (!vlan_filter_n) {
323 ret = mlx5_ctrl_flow(dev, &bcast, &bcast);
326 ret = mlx5_ctrl_flow(dev, &ipv6_multi_spec,
332 /* Add MAC address flows. */
333 for (i = 0; i != MLX5_MAX_MAC_ADDRESSES; ++i) {
334 struct ether_addr *mac = &dev->data->mac_addrs[i];
336 if (!memcmp(mac, &cmp, sizeof(*mac)))
338 memcpy(&unicast.dst.addr_bytes,
341 for (j = 0; j != vlan_filter_n; ++j) {
342 uint16_t vlan = priv->vlan_filter[j];
344 struct rte_flow_item_vlan vlan_spec = {
345 .tci = rte_cpu_to_be_16(vlan),
347 struct rte_flow_item_vlan vlan_mask =
348 rte_flow_item_vlan_mask;
350 ret = mlx5_ctrl_flow_vlan(dev, &unicast,
357 if (!vlan_filter_n) {
358 ret = mlx5_ctrl_flow(dev, &unicast, &unicast_mask);
365 ret = rte_errno; /* Save rte_errno before cleanup. */
366 mlx5_flow_list_flush(dev, &priv->ctrl_flows);
367 rte_errno = ret; /* Restore rte_errno. */
373 * Disable traffic flows configured by control plane
376 * Pointer to Ethernet device private data.
379 mlx5_traffic_disable(struct rte_eth_dev *dev)
381 struct mlx5_priv *priv = dev->data->dev_private;
383 mlx5_flow_list_flush(dev, &priv->ctrl_flows);
387 * Restart traffic flows configured by control plane
390 * Pointer to Ethernet device private data.
393 * 0 on success, a negative errno value otherwise and rte_errno is set.
396 mlx5_traffic_restart(struct rte_eth_dev *dev)
398 if (dev->data->dev_started) {
399 mlx5_traffic_disable(dev);
400 return mlx5_traffic_enable(dev);