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 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 priv *priv = dev->data->dev_private;
49 /* Add memory regions to Tx queues. */
50 for (i = 0; i != priv->txqs_n; ++i) {
51 struct mlx5_txq_ctrl *txq_ctrl = mlx5_txq_get(dev, i);
55 txq_alloc_elts(txq_ctrl);
56 txq_ctrl->ibv = mlx5_txq_ibv_new(dev, i);
62 ret = mlx5_tx_uar_remap(dev, priv->ctx->cmd_fd);
67 ret = rte_errno; /* Save rte_errno before cleanup. */
69 rte_errno = ret; /* Restore rte_errno. */
74 * Stop traffic on Rx queues.
77 * Pointer to Ethernet device structure.
80 mlx5_rxq_stop(struct rte_eth_dev *dev)
82 struct priv *priv = dev->data->dev_private;
85 for (i = 0; i != priv->rxqs_n; ++i)
86 mlx5_rxq_release(dev, i);
90 * Start traffic on Rx queues.
93 * Pointer to Ethernet device structure.
96 * 0 on success, a negative errno value otherwise and rte_errno is set.
99 mlx5_rxq_start(struct rte_eth_dev *dev)
101 struct priv *priv = dev->data->dev_private;
105 for (i = 0; i != priv->rxqs_n; ++i) {
106 struct mlx5_rxq_ctrl *rxq_ctrl = mlx5_rxq_get(dev, i);
110 ret = rxq_alloc_elts(rxq_ctrl);
113 rxq_ctrl->ibv = mlx5_rxq_ibv_new(dev, i);
119 ret = rte_errno; /* Save rte_errno before cleanup. */
121 rte_errno = ret; /* Restore rte_errno. */
126 * DPDK callback to start the device.
128 * Simulate device start by attaching all configured flows.
131 * Pointer to Ethernet device structure.
134 * 0 on success, a negative errno value otherwise and rte_errno is set.
137 mlx5_dev_start(struct rte_eth_dev *dev)
139 struct priv *priv = dev->data->dev_private;
142 dev->data->dev_started = 1;
143 DRV_LOG(DEBUG, "port %u allocating and configuring hash Rx queues",
145 ret = mlx5_txq_start(dev);
147 DRV_LOG(ERR, "port %u Tx queue allocation failed: %s",
148 dev->data->port_id, strerror(rte_errno));
151 ret = mlx5_rxq_start(dev);
153 DRV_LOG(ERR, "port %u Rx queue allocation failed: %s",
154 dev->data->port_id, strerror(rte_errno));
157 ret = mlx5_rx_intr_vec_enable(dev);
159 DRV_LOG(ERR, "port %u Rx interrupt vector creation failed",
163 mlx5_xstats_init(dev);
164 ret = mlx5_traffic_enable(dev);
166 DRV_LOG(DEBUG, "port %u failed to set defaults flows",
170 ret = mlx5_flow_start(dev, &priv->flows);
172 DRV_LOG(DEBUG, "port %u failed to set flows",
176 dev->tx_pkt_burst = mlx5_select_tx_function(dev);
177 dev->rx_pkt_burst = mlx5_select_rx_function(dev);
178 mlx5_dev_interrupt_handler_install(dev);
181 ret = rte_errno; /* Save rte_errno before cleanup. */
183 dev->data->dev_started = 0;
184 mlx5_flow_stop(dev, &priv->flows);
185 mlx5_traffic_disable(dev);
188 rte_errno = ret; /* Restore rte_errno. */
193 * DPDK callback to stop the device.
195 * Simulate device stop by detaching all configured flows.
198 * Pointer to Ethernet device structure.
201 mlx5_dev_stop(struct rte_eth_dev *dev)
203 struct priv *priv = dev->data->dev_private;
205 dev->data->dev_started = 0;
206 /* Prevent crashes when queues are still in use. */
207 dev->rx_pkt_burst = removed_rx_burst;
208 dev->tx_pkt_burst = removed_tx_burst;
210 usleep(1000 * priv->rxqs_n);
211 DRV_LOG(DEBUG, "port %u cleaning up and destroying hash Rx queues",
213 mlx5_flow_stop(dev, &priv->flows);
214 mlx5_traffic_disable(dev);
215 mlx5_rx_intr_vec_disable(dev);
216 mlx5_dev_interrupt_handler_uninstall(dev);
222 * Enable traffic flows configured by control plane
225 * Pointer to Ethernet device private data.
227 * Pointer to Ethernet device structure.
230 * 0 on success, a negative errno value otherwise and rte_errno is set.
233 mlx5_traffic_enable(struct rte_eth_dev *dev)
235 struct priv *priv = dev->data->dev_private;
236 struct rte_flow_item_eth bcast = {
237 .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
239 struct rte_flow_item_eth ipv6_multi_spec = {
240 .dst.addr_bytes = "\x33\x33\x00\x00\x00\x00",
242 struct rte_flow_item_eth ipv6_multi_mask = {
243 .dst.addr_bytes = "\xff\xff\x00\x00\x00\x00",
245 struct rte_flow_item_eth unicast = {
246 .src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
248 struct rte_flow_item_eth unicast_mask = {
249 .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
251 const unsigned int vlan_filter_n = priv->vlan_filter_n;
252 const struct ether_addr cmp = {
253 .addr_bytes = "\x00\x00\x00\x00\x00\x00",
261 if (dev->data->promiscuous) {
262 struct rte_flow_item_eth promisc = {
263 .dst.addr_bytes = "\x00\x00\x00\x00\x00\x00",
264 .src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
268 ret = mlx5_ctrl_flow(dev, &promisc, &promisc);
272 if (dev->data->all_multicast) {
273 struct rte_flow_item_eth multicast = {
274 .dst.addr_bytes = "\x01\x00\x00\x00\x00\x00",
275 .src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
279 ret = mlx5_ctrl_flow(dev, &multicast, &multicast);
283 /* Add broadcast/multicast flows. */
284 for (i = 0; i != vlan_filter_n; ++i) {
285 uint16_t vlan = priv->vlan_filter[i];
287 struct rte_flow_item_vlan vlan_spec = {
288 .tci = rte_cpu_to_be_16(vlan),
290 struct rte_flow_item_vlan vlan_mask = {
294 ret = mlx5_ctrl_flow_vlan(dev, &bcast, &bcast,
295 &vlan_spec, &vlan_mask);
298 ret = mlx5_ctrl_flow_vlan(dev, &ipv6_multi_spec,
300 &vlan_spec, &vlan_mask);
304 if (!vlan_filter_n) {
305 ret = mlx5_ctrl_flow(dev, &bcast, &bcast);
308 ret = mlx5_ctrl_flow(dev, &ipv6_multi_spec,
314 /* Add MAC address flows. */
315 for (i = 0; i != MLX5_MAX_MAC_ADDRESSES; ++i) {
316 struct ether_addr *mac = &dev->data->mac_addrs[i];
318 if (!memcmp(mac, &cmp, sizeof(*mac)))
320 memcpy(&unicast.dst.addr_bytes,
323 for (j = 0; j != vlan_filter_n; ++j) {
324 uint16_t vlan = priv->vlan_filter[j];
326 struct rte_flow_item_vlan vlan_spec = {
327 .tci = rte_cpu_to_be_16(vlan),
329 struct rte_flow_item_vlan vlan_mask = {
333 ret = mlx5_ctrl_flow_vlan(dev, &unicast,
340 if (!vlan_filter_n) {
341 ret = mlx5_ctrl_flow(dev, &unicast, &unicast_mask);
348 ret = rte_errno; /* Save rte_errno before cleanup. */
349 mlx5_flow_list_flush(dev, &priv->ctrl_flows);
350 rte_errno = ret; /* Restore rte_errno. */
356 * Disable traffic flows configured by control plane
359 * Pointer to Ethernet device private data.
362 mlx5_traffic_disable(struct rte_eth_dev *dev)
364 struct priv *priv = dev->data->dev_private;
366 mlx5_flow_list_flush(dev, &priv->ctrl_flows);
370 * Restart traffic flows configured by control plane
373 * Pointer to Ethernet device private data.
376 * 0 on success, a negative errno value otherwise and rte_errno is set.
379 mlx5_traffic_restart(struct rte_eth_dev *dev)
381 if (dev->data->dev_started) {
382 mlx5_traffic_disable(dev);
383 return mlx5_traffic_enable(dev);