1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright 2017 6WIND S.A.
3 * Copyright 2017 Mellanox Technologies, Ltd
9 #include <rte_flow_driver.h>
10 #include <rte_cycles.h>
12 #include "failsafe_private.h"
14 /** Print a message out of a flow error. */
16 fs_flow_complain(struct rte_flow_error *error)
18 static const char *const errstrlist[] = {
19 [RTE_FLOW_ERROR_TYPE_NONE] = "no error",
20 [RTE_FLOW_ERROR_TYPE_UNSPECIFIED] = "cause unspecified",
21 [RTE_FLOW_ERROR_TYPE_HANDLE] = "flow rule (handle)",
22 [RTE_FLOW_ERROR_TYPE_ATTR_GROUP] = "group field",
23 [RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY] = "priority field",
24 [RTE_FLOW_ERROR_TYPE_ATTR_INGRESS] = "ingress field",
25 [RTE_FLOW_ERROR_TYPE_ATTR_EGRESS] = "egress field",
26 [RTE_FLOW_ERROR_TYPE_ATTR] = "attributes structure",
27 [RTE_FLOW_ERROR_TYPE_ITEM_NUM] = "pattern length",
28 [RTE_FLOW_ERROR_TYPE_ITEM] = "specific pattern item",
29 [RTE_FLOW_ERROR_TYPE_ACTION_NUM] = "number of actions",
30 [RTE_FLOW_ERROR_TYPE_ACTION] = "specific action",
36 if ((unsigned int)error->type >= RTE_DIM(errstrlist) ||
37 !errstrlist[error->type])
38 errstr = "unknown type";
40 errstr = errstrlist[error->type];
41 ERROR("Caught error type %d (%s): %s%s\n",
43 error->cause ? (snprintf(buf, sizeof(buf), "cause: %p, ",
44 error->cause), buf) : "",
45 error->message ? error->message : "(no stated reason)");
50 eth_dev_flow_isolate_set(struct rte_eth_dev *dev,
51 struct sub_device *sdev)
53 struct rte_flow_error ferror;
56 if (!PRIV(dev)->flow_isolated) {
57 DEBUG("Flow isolation already disabled");
59 DEBUG("Enabling flow isolation");
60 ret = rte_flow_isolate(PORT_ID(sdev),
61 PRIV(dev)->flow_isolated,
64 fs_flow_complain(&ferror);
72 fs_eth_dev_conf_apply(struct rte_eth_dev *dev,
73 struct sub_device *sdev)
75 struct rte_eth_dev *edev;
76 struct rte_vlan_filter_conf *vfc1;
77 struct rte_vlan_filter_conf *vfc2;
78 struct rte_flow *flow;
79 struct rte_flow_error ferror;
85 for (i = 0; i < dev->data->nb_rx_queues; i++) {
88 rxq = dev->data->rx_queues[i];
89 ret = rte_eth_rx_queue_setup(PORT_ID(sdev), i,
90 rxq->info.nb_desc, rxq->socket_id,
91 &rxq->info.conf, rxq->info.mp);
93 ERROR("rx_queue_setup failed");
98 for (i = 0; i < dev->data->nb_tx_queues; i++) {
101 txq = dev->data->tx_queues[i];
102 ret = rte_eth_tx_queue_setup(PORT_ID(sdev), i,
103 txq->info.nb_desc, txq->socket_id,
106 ERROR("tx_queue_setup failed");
110 /* dev_link.link_status */
111 if (dev->data->dev_link.link_status !=
112 edev->data->dev_link.link_status) {
113 DEBUG("Configuring link_status");
114 if (dev->data->dev_link.link_status)
115 ret = rte_eth_dev_set_link_up(PORT_ID(sdev));
117 ret = rte_eth_dev_set_link_down(PORT_ID(sdev));
119 ERROR("Failed to apply link_status");
123 DEBUG("link_status already set");
126 if (dev->data->promiscuous != edev->data->promiscuous) {
127 DEBUG("Configuring promiscuous");
128 if (dev->data->promiscuous)
129 rte_eth_promiscuous_enable(PORT_ID(sdev));
131 rte_eth_promiscuous_disable(PORT_ID(sdev));
133 DEBUG("promiscuous already set");
136 if (dev->data->all_multicast != edev->data->all_multicast) {
137 DEBUG("Configuring all_multicast");
138 if (dev->data->all_multicast)
139 rte_eth_allmulticast_enable(PORT_ID(sdev));
141 rte_eth_allmulticast_disable(PORT_ID(sdev));
143 DEBUG("all_multicast already set");
146 if (dev->data->mtu != edev->data->mtu) {
147 DEBUG("Configuring MTU");
148 ret = rte_eth_dev_set_mtu(PORT_ID(sdev), dev->data->mtu);
150 ERROR("Failed to apply MTU");
154 DEBUG("MTU already set");
157 DEBUG("Configuring default MAC address");
158 ret = rte_eth_dev_default_mac_addr_set(PORT_ID(sdev),
159 &dev->data->mac_addrs[0]);
161 ERROR("Setting default MAC address failed");
165 if (PRIV(dev)->nb_mac_addr > 1)
166 DEBUG("Configure additional MAC address%s",
167 (PRIV(dev)->nb_mac_addr > 2 ? "es" : ""));
168 for (i = 1; i < PRIV(dev)->nb_mac_addr; i++) {
169 struct ether_addr *ea;
171 ea = &dev->data->mac_addrs[i];
172 ret = rte_eth_dev_mac_addr_add(PORT_ID(sdev), ea,
173 PRIV(dev)->mac_addr_pool[i]);
175 char ea_fmt[ETHER_ADDR_FMT_SIZE];
177 ether_format_addr(ea_fmt, ETHER_ADDR_FMT_SIZE, ea);
178 ERROR("Adding MAC address %s failed", ea_fmt);
183 vfc1 = &dev->data->vlan_filter_conf;
184 vfc2 = &edev->data->vlan_filter_conf;
185 if (memcmp(vfc1, vfc2, sizeof(struct rte_vlan_filter_conf))) {
191 DEBUG("Configuring VLAN filter");
192 for (i = 0; i < RTE_DIM(vfc1->ids); i++) {
193 if (vfc1->ids[i] == 0)
198 /* count trailing zeroes */
199 vbit = ~ids & (ids - 1);
200 /* clear least significant bit set */
201 ids ^= (ids ^ (ids - 1)) ^ vbit;
202 for (; vbit; vlan_id++)
204 ret = rte_eth_dev_vlan_filter(
205 PORT_ID(sdev), vlan_id, 1);
207 ERROR("Failed to apply VLAN filter %hu",
214 DEBUG("VLAN filter already set");
217 if (TAILQ_EMPTY(&PRIV(dev)->flow_list)) {
218 DEBUG("rte_flow already set");
220 DEBUG("Resetting rte_flow configuration");
221 ret = rte_flow_flush(PORT_ID(sdev), &ferror);
223 fs_flow_complain(&ferror);
228 DEBUG("Configuring rte_flow");
229 TAILQ_FOREACH(flow, &PRIV(dev)->flow_list, next) {
230 DEBUG("Creating flow #%" PRIu32, i++);
231 flow->flows[SUB_ID(sdev)] =
232 rte_flow_create(PORT_ID(sdev),
242 fs_flow_complain(&ferror);
250 fs_dev_remove(struct sub_device *sdev)
256 switch (sdev->state) {
258 failsafe_rx_intr_uninstall_subdevice(sdev);
259 rte_eth_dev_stop(PORT_ID(sdev));
260 sdev->state = DEV_ACTIVE;
263 rte_eth_dev_close(PORT_ID(sdev));
264 sdev->state = DEV_PROBED;
267 ret = rte_eal_hotplug_remove(sdev->bus->name,
270 ERROR("Bus detach failed for sub_device %u",
273 rte_eth_dev_release_port(ETH(sdev));
275 sdev->state = DEV_PARSED;
279 sdev->state = DEV_UNDEFINED;
284 failsafe_hotplug_alarm_install(sdev->fs_dev);
288 fs_dev_stats_save(struct sub_device *sdev)
290 struct rte_eth_stats stats;
293 /* Attempt to read current stats. */
294 err = rte_eth_stats_get(PORT_ID(sdev), &stats);
296 uint64_t timestamp = sdev->stats_snapshot.timestamp;
298 WARN("Could not access latest statistics from sub-device %d.\n",
301 WARN("Using latest snapshot taken before %"PRIu64" seconds.\n",
302 (rte_rdtsc() - timestamp) / rte_get_tsc_hz());
304 failsafe_stats_increment(&PRIV(sdev->fs_dev)->stats_accumulator,
305 err ? &sdev->stats_snapshot.stats : &stats);
306 memset(&sdev->stats_snapshot, 0, sizeof(sdev->stats_snapshot));
310 fs_rxtx_clean(struct sub_device *sdev)
314 for (i = 0; i < ETH(sdev)->data->nb_rx_queues; i++)
315 if (FS_ATOMIC_RX(sdev, i))
317 for (i = 0; i < ETH(sdev)->data->nb_tx_queues; i++)
318 if (FS_ATOMIC_TX(sdev, i))
324 failsafe_dev_remove(struct rte_eth_dev *dev)
326 struct sub_device *sdev;
329 FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE)
330 if (sdev->remove && fs_rxtx_clean(sdev)) {
331 if (fs_lock(dev, 1) != 0)
333 fs_dev_stats_save(sdev);
340 failsafe_eth_dev_state_sync(struct rte_eth_dev *dev)
342 struct sub_device *sdev;
347 if (PRIV(dev)->state < DEV_PARSED)
350 ret = failsafe_args_parse_subs(dev);
354 if (PRIV(dev)->state < DEV_PROBED)
356 ret = failsafe_eal_init(dev);
359 if (PRIV(dev)->state < DEV_ACTIVE)
362 FOREACH_SUBDEV(sdev, i, dev) {
363 if (sdev->state == DEV_PROBED) {
364 inactive |= UINT32_C(1) << i;
365 ret = eth_dev_flow_isolate_set(dev, sdev);
367 ERROR("Could not apply configuration to sub_device %d",
373 ret = dev->dev_ops->dev_configure(dev);
376 FOREACH_SUBDEV(sdev, i, dev) {
377 if (inactive & (UINT32_C(1) << i)) {
378 ret = fs_eth_dev_conf_apply(dev, sdev);
380 ERROR("Could not apply configuration to sub_device %d",
387 * If new devices have been configured, check if
388 * the link state has changed.
391 dev->dev_ops->link_update(dev, 1);
392 if (PRIV(dev)->state < DEV_STARTED)
394 ret = dev->dev_ops->dev_start(dev);
399 FOREACH_SUBDEV(sdev, i, dev)
400 if (sdev->state != PRIV(dev)->state)
406 failsafe_stats_increment(struct rte_eth_stats *to, struct rte_eth_stats *from)
410 RTE_ASSERT(to != NULL && from != NULL);
411 to->ipackets += from->ipackets;
412 to->opackets += from->opackets;
413 to->ibytes += from->ibytes;
414 to->obytes += from->obytes;
415 to->imissed += from->imissed;
416 to->ierrors += from->ierrors;
417 to->oerrors += from->oerrors;
418 to->rx_nombuf += from->rx_nombuf;
419 for (i = 0; i < RTE_ETHDEV_QUEUE_STAT_CNTRS; i++) {
420 to->q_ipackets[i] += from->q_ipackets[i];
421 to->q_opackets[i] += from->q_opackets[i];
422 to->q_ibytes[i] += from->q_ibytes[i];
423 to->q_obytes[i] += from->q_obytes[i];
424 to->q_errors[i] += from->q_errors[i];
429 failsafe_eth_rmv_event_callback(uint16_t port_id __rte_unused,
430 enum rte_eth_event_type event __rte_unused,
431 void *cb_arg, void *out __rte_unused)
433 struct sub_device *sdev = cb_arg;
435 fs_lock(sdev->fs_dev, 0);
436 /* Switch as soon as possible tx_dev. */
437 fs_switch_dev(sdev->fs_dev, sdev);
438 /* Use safe bursts in any case. */
439 set_burst_fn(sdev->fs_dev, 1);
441 * Async removal, the sub-PMD will try to unregister
442 * the callback at the source of the current thread context.
445 fs_unlock(sdev->fs_dev, 0);
450 failsafe_eth_lsc_event_callback(uint16_t port_id __rte_unused,
451 enum rte_eth_event_type event __rte_unused,
452 void *cb_arg, void *out __rte_unused)
454 struct rte_eth_dev *dev = cb_arg;
457 ret = dev->dev_ops->link_update(dev, 0);
458 /* We must pass on the LSC event */
460 return _rte_eth_dev_callback_process(dev,
461 RTE_ETH_EVENT_INTR_LSC,