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5 * Copyright 2015 Mellanox.
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35 #include <rte_ether.h>
36 #include <rte_ethdev.h>
37 #include <rte_interrupts.h>
38 #include <rte_alarm.h>
41 #include "mlx5_rxtx.h"
42 #include "mlx5_utils.h"
45 priv_txq_stop(struct priv *priv)
49 for (i = 0; i != priv->txqs_n; ++i)
50 mlx5_priv_txq_release(priv, i);
54 priv_txq_start(struct priv *priv)
59 /* Add memory regions to Tx queues. */
60 for (i = 0; i != priv->txqs_n; ++i) {
63 struct mlx5_txq_ctrl *txq_ctrl = mlx5_priv_txq_get(priv, i);
67 LIST_FOREACH(mr, &priv->mr, next) {
68 priv_txq_mp2mr_reg(priv, &txq_ctrl->txq, mr->mp, idx++);
69 if (idx == MLX5_PMD_TX_MP_CACHE)
72 txq_alloc_elts(txq_ctrl);
73 txq_ctrl->ibv = mlx5_priv_txq_ibv_new(priv, i);
86 priv_rxq_stop(struct priv *priv)
90 for (i = 0; i != priv->rxqs_n; ++i)
91 mlx5_priv_rxq_release(priv, i);
95 priv_rxq_start(struct priv *priv)
100 for (i = 0; i != priv->rxqs_n; ++i) {
101 struct mlx5_rxq_ctrl *rxq_ctrl = mlx5_priv_rxq_get(priv, i);
105 ret = rxq_alloc_elts(rxq_ctrl);
108 rxq_ctrl->ibv = mlx5_priv_rxq_ibv_new(priv, i);
109 if (!rxq_ctrl->ibv) {
121 * DPDK callback to start the device.
123 * Simulate device start by attaching all configured flows.
126 * Pointer to Ethernet device structure.
129 * 0 on success, negative errno value on failure.
132 mlx5_dev_start(struct rte_eth_dev *dev)
134 struct priv *priv = dev->data->dev_private;
135 struct mlx5_mr *mr = NULL;
138 dev->data->dev_started = 1;
140 err = priv_flow_create_drop_queue(priv);
142 ERROR("%p: Drop queue allocation failed: %s",
143 (void *)dev, strerror(err));
146 DEBUG("%p: allocating and configuring hash RX queues", (void *)dev);
147 rte_mempool_walk(mlx5_mp2mr_iter, priv);
148 err = priv_txq_start(priv);
150 ERROR("%p: TXQ allocation failed: %s",
151 (void *)dev, strerror(err));
154 /* Update send callback. */
155 priv_dev_select_tx_function(priv, dev);
156 err = priv_rxq_start(priv);
158 ERROR("%p: RXQ allocation failed: %s",
159 (void *)dev, strerror(err));
162 /* Update receive callback. */
163 priv_dev_select_rx_function(priv, dev);
164 err = priv_dev_traffic_enable(priv, dev);
166 ERROR("%p: an error occurred while configuring control flows:"
168 (void *)priv, strerror(err));
171 err = priv_flow_start(priv, &priv->flows);
173 ERROR("%p: an error occurred while configuring flows:"
175 (void *)priv, strerror(err));
178 err = priv_rx_intr_vec_enable(priv);
180 ERROR("%p: RX interrupt vector creation failed",
184 priv_dev_interrupt_handler_install(priv, dev);
185 priv_xstats_init(priv);
190 dev->data->dev_started = 0;
191 for (mr = LIST_FIRST(&priv->mr); mr; mr = LIST_FIRST(&priv->mr))
192 priv_mr_release(priv, mr);
193 priv_flow_stop(priv, &priv->flows);
194 priv_dev_traffic_disable(priv, dev);
197 priv_flow_delete_drop_queue(priv);
203 * DPDK callback to stop the device.
205 * Simulate device stop by detaching all configured flows.
208 * Pointer to Ethernet device structure.
211 mlx5_dev_stop(struct rte_eth_dev *dev)
213 struct priv *priv = dev->data->dev_private;
217 dev->data->dev_started = 0;
218 /* Prevent crashes when queues are still in use. */
219 dev->rx_pkt_burst = removed_rx_burst;
220 dev->tx_pkt_burst = removed_tx_burst;
222 usleep(1000 * priv->rxqs_n);
223 DEBUG("%p: cleaning up and destroying hash RX queues", (void *)dev);
224 priv_flow_stop(priv, &priv->flows);
225 priv_dev_traffic_disable(priv, dev);
226 priv_rx_intr_vec_disable(priv);
227 priv_dev_interrupt_handler_uninstall(priv, dev);
230 for (mr = LIST_FIRST(&priv->mr); mr; mr = LIST_FIRST(&priv->mr))
231 priv_mr_release(priv, mr);
232 priv_flow_delete_drop_queue(priv);
237 * Enable traffic flows configured by control plane
240 * Pointer to Ethernet device private data.
242 * Pointer to Ethernet device structure.
248 priv_dev_traffic_enable(struct priv *priv, struct rte_eth_dev *dev)
250 struct rte_flow_item_eth bcast = {
251 .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
253 struct rte_flow_item_eth ipv6_multi_spec = {
254 .dst.addr_bytes = "\x33\x33\x00\x00\x00\x00",
256 struct rte_flow_item_eth ipv6_multi_mask = {
257 .dst.addr_bytes = "\xff\xff\x00\x00\x00\x00",
259 struct rte_flow_item_eth unicast = {
260 .src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
262 struct rte_flow_item_eth unicast_mask = {
263 .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
265 const unsigned int vlan_filter_n = priv->vlan_filter_n;
266 const struct ether_addr cmp = {
267 .addr_bytes = "\x00\x00\x00\x00\x00\x00",
275 if (dev->data->promiscuous) {
276 struct rte_flow_item_eth promisc = {
277 .dst.addr_bytes = "\x00\x00\x00\x00\x00\x00",
278 .src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
282 claim_zero(mlx5_ctrl_flow(dev, &promisc, &promisc));
285 if (dev->data->all_multicast) {
286 struct rte_flow_item_eth multicast = {
287 .dst.addr_bytes = "\x01\x00\x00\x00\x00\x00",
288 .src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
292 claim_zero(mlx5_ctrl_flow(dev, &multicast, &multicast));
294 /* Add broadcast/multicast flows. */
295 for (i = 0; i != vlan_filter_n; ++i) {
296 uint16_t vlan = priv->vlan_filter[i];
298 struct rte_flow_item_vlan vlan_spec = {
299 .tci = rte_cpu_to_be_16(vlan),
301 struct rte_flow_item_vlan vlan_mask = {
305 ret = mlx5_ctrl_flow_vlan(dev, &bcast, &bcast,
306 &vlan_spec, &vlan_mask);
309 ret = mlx5_ctrl_flow_vlan(dev, &ipv6_multi_spec,
311 &vlan_spec, &vlan_mask);
315 if (!vlan_filter_n) {
316 ret = mlx5_ctrl_flow(dev, &bcast, &bcast);
319 ret = mlx5_ctrl_flow(dev, &ipv6_multi_spec,
325 /* Add MAC address flows. */
326 for (i = 0; i != MLX5_MAX_MAC_ADDRESSES; ++i) {
327 struct ether_addr *mac = &dev->data->mac_addrs[i];
329 if (!memcmp(mac, &cmp, sizeof(*mac)))
331 memcpy(&unicast.dst.addr_bytes,
334 for (j = 0; j != vlan_filter_n; ++j) {
335 uint16_t vlan = priv->vlan_filter[j];
337 struct rte_flow_item_vlan vlan_spec = {
338 .tci = rte_cpu_to_be_16(vlan),
340 struct rte_flow_item_vlan vlan_mask = {
344 ret = mlx5_ctrl_flow_vlan(dev, &unicast,
351 if (!vlan_filter_n) {
352 ret = mlx5_ctrl_flow(dev, &unicast,
365 * Disable traffic flows configured by control plane
368 * Pointer to Ethernet device private data.
370 * Pointer to Ethernet device structure.
376 priv_dev_traffic_disable(struct priv *priv, struct rte_eth_dev *dev)
379 priv_flow_flush(priv, &priv->ctrl_flows);
384 * Restart traffic flows configured by control plane
387 * Pointer to Ethernet device private data.
389 * Pointer to Ethernet device structure.
395 priv_dev_traffic_restart(struct priv *priv, struct rte_eth_dev *dev)
397 if (dev->data->dev_started) {
398 priv_dev_traffic_disable(priv, dev);
399 priv_dev_traffic_enable(priv, dev);
405 * Restart traffic flows configured by control plane
408 * Pointer to Ethernet device structure.
414 mlx5_traffic_restart(struct rte_eth_dev *dev)
416 struct priv *priv = dev->data->dev_private;
419 priv_dev_traffic_restart(priv, dev);