xref: /dpdk/drivers/net/bonding/rte_eth_bond_api.c (revision b19f366c)
1 /* SPDX-License-Identifier: BSD-3-Clause
2  * Copyright(c) 2010-2017 Intel Corporation
3  */
4 
5 #include <string.h>
6 
7 #include <rte_mbuf.h>
8 #include <rte_malloc.h>
9 #include <ethdev_driver.h>
10 #include <rte_tcp.h>
11 #include <rte_bus_vdev.h>
12 #include <rte_kvargs.h>
13 
14 #include "rte_eth_bond.h"
15 #include "eth_bond_private.h"
16 #include "eth_bond_8023ad_private.h"
17 
18 int
19 check_for_bonded_ethdev(const struct rte_eth_dev *eth_dev)
20 {
21 	/* Check valid pointer */
22 	if (eth_dev == NULL ||
23 		eth_dev->device == NULL ||
24 		eth_dev->device->driver == NULL ||
25 		eth_dev->device->driver->name == NULL)
26 		return -1;
27 
28 	/* return 0 if driver name matches */
29 	return eth_dev->device->driver->name != pmd_bond_drv.driver.name;
30 }
31 
32 int
33 valid_bonded_port_id(uint16_t port_id)
34 {
35 	RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -1);
36 	return check_for_bonded_ethdev(&rte_eth_devices[port_id]);
37 }
38 
39 int
40 check_for_master_bonded_ethdev(const struct rte_eth_dev *eth_dev)
41 {
42 	int i;
43 	struct bond_dev_private *internals;
44 
45 	if (check_for_bonded_ethdev(eth_dev) != 0)
46 		return 0;
47 
48 	internals = eth_dev->data->dev_private;
49 
50 	/* Check if any of slave devices is a bonded device */
51 	for (i = 0; i < internals->slave_count; i++)
52 		if (valid_bonded_port_id(internals->slaves[i].port_id) == 0)
53 			return 1;
54 
55 	return 0;
56 }
57 
58 int
59 valid_slave_port_id(struct bond_dev_private *internals, uint16_t slave_port_id)
60 {
61 	RTE_ETH_VALID_PORTID_OR_ERR_RET(slave_port_id, -1);
62 
63 	/* Verify that slave_port_id refers to a non bonded port */
64 	if (check_for_bonded_ethdev(&rte_eth_devices[slave_port_id]) == 0 &&
65 			internals->mode == BONDING_MODE_8023AD) {
66 		RTE_BOND_LOG(ERR, "Cannot add slave to bonded device in 802.3ad"
67 				" mode as slave is also a bonded device, only "
68 				"physical devices can be support in this mode.");
69 		return -1;
70 	}
71 
72 	if (internals->port_id == slave_port_id) {
73 		RTE_BOND_LOG(ERR,
74 			"Cannot add the bonded device itself as its slave.");
75 		return -1;
76 	}
77 
78 	return 0;
79 }
80 
81 void
82 activate_slave(struct rte_eth_dev *eth_dev, uint16_t port_id)
83 {
84 	struct bond_dev_private *internals = eth_dev->data->dev_private;
85 	uint16_t active_count = internals->active_slave_count;
86 
87 	if (internals->mode == BONDING_MODE_8023AD)
88 		bond_mode_8023ad_activate_slave(eth_dev, port_id);
89 
90 	if (internals->mode == BONDING_MODE_TLB
91 			|| internals->mode == BONDING_MODE_ALB) {
92 
93 		internals->tlb_slaves_order[active_count] = port_id;
94 	}
95 
96 	RTE_ASSERT(internals->active_slave_count <
97 			(RTE_DIM(internals->active_slaves) - 1));
98 
99 	internals->active_slaves[internals->active_slave_count] = port_id;
100 	internals->active_slave_count++;
101 
102 	if (internals->mode == BONDING_MODE_TLB)
103 		bond_tlb_activate_slave(internals);
104 	if (internals->mode == BONDING_MODE_ALB)
105 		bond_mode_alb_client_list_upd(eth_dev);
106 }
107 
108 void
109 deactivate_slave(struct rte_eth_dev *eth_dev, uint16_t port_id)
110 {
111 	uint16_t slave_pos;
112 	struct bond_dev_private *internals = eth_dev->data->dev_private;
113 	uint16_t active_count = internals->active_slave_count;
114 
115 	if (internals->mode == BONDING_MODE_8023AD) {
116 		bond_mode_8023ad_stop(eth_dev);
117 		bond_mode_8023ad_deactivate_slave(eth_dev, port_id);
118 	} else if (internals->mode == BONDING_MODE_TLB
119 			|| internals->mode == BONDING_MODE_ALB)
120 		bond_tlb_disable(internals);
121 
122 	slave_pos = find_slave_by_id(internals->active_slaves, active_count,
123 			port_id);
124 
125 	/* If slave was not at the end of the list
126 	 * shift active slaves up active array list */
127 	if (slave_pos < active_count) {
128 		active_count--;
129 		memmove(internals->active_slaves + slave_pos,
130 				internals->active_slaves + slave_pos + 1,
131 				(active_count - slave_pos) *
132 					sizeof(internals->active_slaves[0]));
133 	}
134 
135 	RTE_ASSERT(active_count < RTE_DIM(internals->active_slaves));
136 	internals->active_slave_count = active_count;
137 
138 	if (eth_dev->data->dev_started) {
139 		if (internals->mode == BONDING_MODE_8023AD) {
140 			bond_mode_8023ad_start(eth_dev);
141 		} else if (internals->mode == BONDING_MODE_TLB) {
142 			bond_tlb_enable(internals);
143 		} else if (internals->mode == BONDING_MODE_ALB) {
144 			bond_tlb_enable(internals);
145 			bond_mode_alb_client_list_upd(eth_dev);
146 		}
147 	}
148 }
149 
150 int
151 rte_eth_bond_create(const char *name, uint8_t mode, uint8_t socket_id)
152 {
153 	struct bond_dev_private *internals;
154 	char devargs[52];
155 	uint16_t port_id;
156 	int ret;
157 
158 	if (name == NULL) {
159 		RTE_BOND_LOG(ERR, "Invalid name specified");
160 		return -EINVAL;
161 	}
162 
163 	ret = snprintf(devargs, sizeof(devargs),
164 		"driver=net_bonding,mode=%d,socket_id=%d", mode, socket_id);
165 	if (ret < 0 || ret >= (int)sizeof(devargs))
166 		return -ENOMEM;
167 
168 	ret = rte_vdev_init(name, devargs);
169 	if (ret)
170 		return ret;
171 
172 	ret = rte_eth_dev_get_port_by_name(name, &port_id);
173 	RTE_ASSERT(!ret);
174 
175 	/*
176 	 * To make bond_ethdev_configure() happy we need to free the
177 	 * internals->kvlist here.
178 	 *
179 	 * Also see comment in bond_ethdev_configure().
180 	 */
181 	internals = rte_eth_devices[port_id].data->dev_private;
182 	rte_kvargs_free(internals->kvlist);
183 	internals->kvlist = NULL;
184 
185 	return port_id;
186 }
187 
188 int
189 rte_eth_bond_free(const char *name)
190 {
191 	return rte_vdev_uninit(name);
192 }
193 
194 static int
195 slave_vlan_filter_set(uint16_t bonded_port_id, uint16_t slave_port_id)
196 {
197 	struct rte_eth_dev *bonded_eth_dev;
198 	struct bond_dev_private *internals;
199 	int found;
200 	int res = 0;
201 	uint64_t slab = 0;
202 	uint32_t pos = 0;
203 	uint16_t first;
204 
205 	bonded_eth_dev = &rte_eth_devices[bonded_port_id];
206 	if ((bonded_eth_dev->data->dev_conf.rxmode.offloads &
207 			DEV_RX_OFFLOAD_VLAN_FILTER) == 0)
208 		return 0;
209 
210 	internals = bonded_eth_dev->data->dev_private;
211 	found = rte_bitmap_scan(internals->vlan_filter_bmp, &pos, &slab);
212 	first = pos;
213 
214 	if (!found)
215 		return 0;
216 
217 	do {
218 		uint32_t i;
219 		uint64_t mask;
220 
221 		for (i = 0, mask = 1;
222 		     i < RTE_BITMAP_SLAB_BIT_SIZE;
223 		     i ++, mask <<= 1) {
224 			if (unlikely(slab & mask)) {
225 				uint16_t vlan_id = pos + i;
226 
227 				res = rte_eth_dev_vlan_filter(slave_port_id,
228 							      vlan_id, 1);
229 			}
230 		}
231 		found = rte_bitmap_scan(internals->vlan_filter_bmp,
232 					&pos, &slab);
233 	} while (found && first != pos && res == 0);
234 
235 	return res;
236 }
237 
238 static int
239 slave_rte_flow_prepare(uint16_t slave_id, struct bond_dev_private *internals)
240 {
241 	struct rte_flow *flow;
242 	struct rte_flow_error ferror;
243 	uint16_t slave_port_id = internals->slaves[slave_id].port_id;
244 
245 	if (internals->flow_isolated_valid != 0) {
246 		if (rte_eth_dev_stop(slave_port_id) != 0) {
247 			RTE_BOND_LOG(ERR, "Failed to stop device on port %u",
248 				     slave_port_id);
249 			return -1;
250 		}
251 
252 		if (rte_flow_isolate(slave_port_id, internals->flow_isolated,
253 		    &ferror)) {
254 			RTE_BOND_LOG(ERR, "rte_flow_isolate failed for slave"
255 				     " %d: %s", slave_id, ferror.message ?
256 				     ferror.message : "(no stated reason)");
257 			return -1;
258 		}
259 	}
260 	TAILQ_FOREACH(flow, &internals->flow_list, next) {
261 		flow->flows[slave_id] = rte_flow_create(slave_port_id,
262 							flow->rule.attr,
263 							flow->rule.pattern,
264 							flow->rule.actions,
265 							&ferror);
266 		if (flow->flows[slave_id] == NULL) {
267 			RTE_BOND_LOG(ERR, "Cannot create flow for slave"
268 				     " %d: %s", slave_id,
269 				     ferror.message ? ferror.message :
270 				     "(no stated reason)");
271 			/* Destroy successful bond flows from the slave */
272 			TAILQ_FOREACH(flow, &internals->flow_list, next) {
273 				if (flow->flows[slave_id] != NULL) {
274 					rte_flow_destroy(slave_port_id,
275 							 flow->flows[slave_id],
276 							 &ferror);
277 					flow->flows[slave_id] = NULL;
278 				}
279 			}
280 			return -1;
281 		}
282 	}
283 	return 0;
284 }
285 
286 static void
287 eth_bond_slave_inherit_dev_info_rx_first(struct bond_dev_private *internals,
288 					 const struct rte_eth_dev_info *di)
289 {
290 	struct rte_eth_rxconf *rxconf_i = &internals->default_rxconf;
291 
292 	internals->reta_size = di->reta_size;
293 
294 	/* Inherit Rx offload capabilities from the first slave device */
295 	internals->rx_offload_capa = di->rx_offload_capa;
296 	internals->rx_queue_offload_capa = di->rx_queue_offload_capa;
297 	internals->flow_type_rss_offloads = di->flow_type_rss_offloads;
298 
299 	/* Inherit maximum Rx packet size from the first slave device */
300 	internals->candidate_max_rx_pktlen = di->max_rx_pktlen;
301 
302 	/* Inherit default Rx queue settings from the first slave device */
303 	memcpy(rxconf_i, &di->default_rxconf, sizeof(*rxconf_i));
304 
305 	/*
306 	 * Turn off descriptor prefetch and writeback by default for all
307 	 * slave devices. Applications may tweak this setting if need be.
308 	 */
309 	rxconf_i->rx_thresh.pthresh = 0;
310 	rxconf_i->rx_thresh.hthresh = 0;
311 	rxconf_i->rx_thresh.wthresh = 0;
312 
313 	/* Setting this to zero should effectively enable default values */
314 	rxconf_i->rx_free_thresh = 0;
315 
316 	/* Disable deferred start by default for all slave devices */
317 	rxconf_i->rx_deferred_start = 0;
318 }
319 
320 static void
321 eth_bond_slave_inherit_dev_info_tx_first(struct bond_dev_private *internals,
322 					 const struct rte_eth_dev_info *di)
323 {
324 	struct rte_eth_txconf *txconf_i = &internals->default_txconf;
325 
326 	/* Inherit Tx offload capabilities from the first slave device */
327 	internals->tx_offload_capa = di->tx_offload_capa;
328 	internals->tx_queue_offload_capa = di->tx_queue_offload_capa;
329 
330 	/* Inherit default Tx queue settings from the first slave device */
331 	memcpy(txconf_i, &di->default_txconf, sizeof(*txconf_i));
332 
333 	/*
334 	 * Turn off descriptor prefetch and writeback by default for all
335 	 * slave devices. Applications may tweak this setting if need be.
336 	 */
337 	txconf_i->tx_thresh.pthresh = 0;
338 	txconf_i->tx_thresh.hthresh = 0;
339 	txconf_i->tx_thresh.wthresh = 0;
340 
341 	/*
342 	 * Setting these parameters to zero assumes that default
343 	 * values will be configured implicitly by slave devices.
344 	 */
345 	txconf_i->tx_free_thresh = 0;
346 	txconf_i->tx_rs_thresh = 0;
347 
348 	/* Disable deferred start by default for all slave devices */
349 	txconf_i->tx_deferred_start = 0;
350 }
351 
352 static void
353 eth_bond_slave_inherit_dev_info_rx_next(struct bond_dev_private *internals,
354 					const struct rte_eth_dev_info *di)
355 {
356 	struct rte_eth_rxconf *rxconf_i = &internals->default_rxconf;
357 	const struct rte_eth_rxconf *rxconf = &di->default_rxconf;
358 
359 	internals->rx_offload_capa &= di->rx_offload_capa;
360 	internals->rx_queue_offload_capa &= di->rx_queue_offload_capa;
361 	internals->flow_type_rss_offloads &= di->flow_type_rss_offloads;
362 
363 	/*
364 	 * If at least one slave device suggests enabling this
365 	 * setting by default, enable it for all slave devices
366 	 * since disabling it may not be necessarily supported.
367 	 */
368 	if (rxconf->rx_drop_en == 1)
369 		rxconf_i->rx_drop_en = 1;
370 
371 	/*
372 	 * Adding a new slave device may cause some of previously inherited
373 	 * offloads to be withdrawn from the internal rx_queue_offload_capa
374 	 * value. Thus, the new internal value of default Rx queue offloads
375 	 * has to be masked by rx_queue_offload_capa to make sure that only
376 	 * commonly supported offloads are preserved from both the previous
377 	 * value and the value being inhereted from the new slave device.
378 	 */
379 	rxconf_i->offloads = (rxconf_i->offloads | rxconf->offloads) &
380 			     internals->rx_queue_offload_capa;
381 
382 	/*
383 	 * RETA size is GCD of all slaves RETA sizes, so, if all sizes will be
384 	 * the power of 2, the lower one is GCD
385 	 */
386 	if (internals->reta_size > di->reta_size)
387 		internals->reta_size = di->reta_size;
388 
389 	if (!internals->max_rx_pktlen &&
390 	    di->max_rx_pktlen < internals->candidate_max_rx_pktlen)
391 		internals->candidate_max_rx_pktlen = di->max_rx_pktlen;
392 }
393 
394 static void
395 eth_bond_slave_inherit_dev_info_tx_next(struct bond_dev_private *internals,
396 					const struct rte_eth_dev_info *di)
397 {
398 	struct rte_eth_txconf *txconf_i = &internals->default_txconf;
399 	const struct rte_eth_txconf *txconf = &di->default_txconf;
400 
401 	internals->tx_offload_capa &= di->tx_offload_capa;
402 	internals->tx_queue_offload_capa &= di->tx_queue_offload_capa;
403 
404 	/*
405 	 * Adding a new slave device may cause some of previously inherited
406 	 * offloads to be withdrawn from the internal tx_queue_offload_capa
407 	 * value. Thus, the new internal value of default Tx queue offloads
408 	 * has to be masked by tx_queue_offload_capa to make sure that only
409 	 * commonly supported offloads are preserved from both the previous
410 	 * value and the value being inhereted from the new slave device.
411 	 */
412 	txconf_i->offloads = (txconf_i->offloads | txconf->offloads) &
413 			     internals->tx_queue_offload_capa;
414 }
415 
416 static void
417 eth_bond_slave_inherit_desc_lim_first(struct rte_eth_desc_lim *bond_desc_lim,
418 		const struct rte_eth_desc_lim *slave_desc_lim)
419 {
420 	memcpy(bond_desc_lim, slave_desc_lim, sizeof(*bond_desc_lim));
421 }
422 
423 static int
424 eth_bond_slave_inherit_desc_lim_next(struct rte_eth_desc_lim *bond_desc_lim,
425 		const struct rte_eth_desc_lim *slave_desc_lim)
426 {
427 	bond_desc_lim->nb_max = RTE_MIN(bond_desc_lim->nb_max,
428 					slave_desc_lim->nb_max);
429 	bond_desc_lim->nb_min = RTE_MAX(bond_desc_lim->nb_min,
430 					slave_desc_lim->nb_min);
431 	bond_desc_lim->nb_align = RTE_MAX(bond_desc_lim->nb_align,
432 					  slave_desc_lim->nb_align);
433 
434 	if (bond_desc_lim->nb_min > bond_desc_lim->nb_max ||
435 	    bond_desc_lim->nb_align > bond_desc_lim->nb_max) {
436 		RTE_BOND_LOG(ERR, "Failed to inherit descriptor limits");
437 		return -EINVAL;
438 	}
439 
440 	/* Treat maximum number of segments equal to 0 as unspecified */
441 	if (slave_desc_lim->nb_seg_max != 0 &&
442 	    (bond_desc_lim->nb_seg_max == 0 ||
443 	     slave_desc_lim->nb_seg_max < bond_desc_lim->nb_seg_max))
444 		bond_desc_lim->nb_seg_max = slave_desc_lim->nb_seg_max;
445 	if (slave_desc_lim->nb_mtu_seg_max != 0 &&
446 	    (bond_desc_lim->nb_mtu_seg_max == 0 ||
447 	     slave_desc_lim->nb_mtu_seg_max < bond_desc_lim->nb_mtu_seg_max))
448 		bond_desc_lim->nb_mtu_seg_max = slave_desc_lim->nb_mtu_seg_max;
449 
450 	return 0;
451 }
452 
453 static int
454 __eth_bond_slave_add_lock_free(uint16_t bonded_port_id, uint16_t slave_port_id)
455 {
456 	struct rte_eth_dev *bonded_eth_dev, *slave_eth_dev;
457 	struct bond_dev_private *internals;
458 	struct rte_eth_link link_props;
459 	struct rte_eth_dev_info dev_info;
460 	int ret;
461 
462 	bonded_eth_dev = &rte_eth_devices[bonded_port_id];
463 	internals = bonded_eth_dev->data->dev_private;
464 
465 	if (valid_slave_port_id(internals, slave_port_id) != 0)
466 		return -1;
467 
468 	slave_eth_dev = &rte_eth_devices[slave_port_id];
469 	if (slave_eth_dev->data->dev_flags & RTE_ETH_DEV_BONDED_SLAVE) {
470 		RTE_BOND_LOG(ERR, "Slave device is already a slave of a bonded device");
471 		return -1;
472 	}
473 
474 	ret = rte_eth_dev_info_get(slave_port_id, &dev_info);
475 	if (ret != 0) {
476 		RTE_BOND_LOG(ERR,
477 			"%s: Error during getting device (port %u) info: %s\n",
478 			__func__, slave_port_id, strerror(-ret));
479 
480 		return ret;
481 	}
482 	if (dev_info.max_rx_pktlen < internals->max_rx_pktlen) {
483 		RTE_BOND_LOG(ERR, "Slave (port %u) max_rx_pktlen too small",
484 			     slave_port_id);
485 		return -1;
486 	}
487 
488 	slave_add(internals, slave_eth_dev);
489 
490 	/* We need to store slaves reta_size to be able to synchronize RETA for all
491 	 * slave devices even if its sizes are different.
492 	 */
493 	internals->slaves[internals->slave_count].reta_size = dev_info.reta_size;
494 
495 	if (internals->slave_count < 1) {
496 		/* if MAC is not user defined then use MAC of first slave add to
497 		 * bonded device */
498 		if (!internals->user_defined_mac) {
499 			if (mac_address_set(bonded_eth_dev,
500 					    slave_eth_dev->data->mac_addrs)) {
501 				RTE_BOND_LOG(ERR, "Failed to set MAC address");
502 				return -1;
503 			}
504 		}
505 
506 		/* Make primary slave */
507 		internals->primary_port = slave_port_id;
508 		internals->current_primary_port = slave_port_id;
509 
510 		/* Inherit queues settings from first slave */
511 		internals->nb_rx_queues = slave_eth_dev->data->nb_rx_queues;
512 		internals->nb_tx_queues = slave_eth_dev->data->nb_tx_queues;
513 
514 		eth_bond_slave_inherit_dev_info_rx_first(internals, &dev_info);
515 		eth_bond_slave_inherit_dev_info_tx_first(internals, &dev_info);
516 
517 		eth_bond_slave_inherit_desc_lim_first(&internals->rx_desc_lim,
518 						      &dev_info.rx_desc_lim);
519 		eth_bond_slave_inherit_desc_lim_first(&internals->tx_desc_lim,
520 						      &dev_info.tx_desc_lim);
521 	} else {
522 		int ret;
523 
524 		eth_bond_slave_inherit_dev_info_rx_next(internals, &dev_info);
525 		eth_bond_slave_inherit_dev_info_tx_next(internals, &dev_info);
526 
527 		ret = eth_bond_slave_inherit_desc_lim_next(
528 				&internals->rx_desc_lim, &dev_info.rx_desc_lim);
529 		if (ret != 0)
530 			return ret;
531 
532 		ret = eth_bond_slave_inherit_desc_lim_next(
533 				&internals->tx_desc_lim, &dev_info.tx_desc_lim);
534 		if (ret != 0)
535 			return ret;
536 	}
537 
538 	bonded_eth_dev->data->dev_conf.rx_adv_conf.rss_conf.rss_hf &=
539 			internals->flow_type_rss_offloads;
540 
541 	if (slave_rte_flow_prepare(internals->slave_count, internals) != 0) {
542 		RTE_BOND_LOG(ERR, "Failed to prepare new slave flows: port=%d",
543 			     slave_port_id);
544 		return -1;
545 	}
546 
547 	/* Add additional MAC addresses to the slave */
548 	if (slave_add_mac_addresses(bonded_eth_dev, slave_port_id) != 0) {
549 		RTE_BOND_LOG(ERR, "Failed to add mac address(es) to slave %hu",
550 				slave_port_id);
551 		return -1;
552 	}
553 
554 	internals->slave_count++;
555 
556 	if (bonded_eth_dev->data->dev_started) {
557 		if (slave_configure(bonded_eth_dev, slave_eth_dev) != 0) {
558 			internals->slave_count--;
559 			RTE_BOND_LOG(ERR, "rte_bond_slaves_configure: port=%d",
560 					slave_port_id);
561 			return -1;
562 		}
563 	}
564 
565 	/* Update all slave devices MACs */
566 	mac_address_slaves_update(bonded_eth_dev);
567 
568 	/* Register link status change callback with bonded device pointer as
569 	 * argument*/
570 	rte_eth_dev_callback_register(slave_port_id, RTE_ETH_EVENT_INTR_LSC,
571 			bond_ethdev_lsc_event_callback, &bonded_eth_dev->data->port_id);
572 
573 	/* If bonded device is started then we can add the slave to our active
574 	 * slave array */
575 	if (bonded_eth_dev->data->dev_started) {
576 		ret = rte_eth_link_get_nowait(slave_port_id, &link_props);
577 		if (ret < 0) {
578 			rte_eth_dev_callback_unregister(slave_port_id,
579 					RTE_ETH_EVENT_INTR_LSC,
580 					bond_ethdev_lsc_event_callback,
581 					&bonded_eth_dev->data->port_id);
582 			internals->slave_count--;
583 			RTE_BOND_LOG(ERR,
584 				"Slave (port %u) link get failed: %s\n",
585 				slave_port_id, rte_strerror(-ret));
586 			return -1;
587 		}
588 
589 		 if (link_props.link_status == ETH_LINK_UP) {
590 			if (internals->active_slave_count == 0 &&
591 			    !internals->user_defined_primary_port)
592 				bond_ethdev_primary_set(internals,
593 							slave_port_id);
594 		}
595 	}
596 
597 	/* Add slave details to bonded device */
598 	slave_eth_dev->data->dev_flags |= RTE_ETH_DEV_BONDED_SLAVE;
599 
600 	slave_vlan_filter_set(bonded_port_id, slave_port_id);
601 
602 	return 0;
603 
604 }
605 
606 int
607 rte_eth_bond_slave_add(uint16_t bonded_port_id, uint16_t slave_port_id)
608 {
609 	struct rte_eth_dev *bonded_eth_dev;
610 	struct bond_dev_private *internals;
611 
612 	int retval;
613 
614 	if (valid_bonded_port_id(bonded_port_id) != 0)
615 		return -1;
616 
617 	bonded_eth_dev = &rte_eth_devices[bonded_port_id];
618 	internals = bonded_eth_dev->data->dev_private;
619 
620 	if (valid_slave_port_id(internals, slave_port_id) != 0)
621 		return -1;
622 
623 	rte_spinlock_lock(&internals->lock);
624 
625 	retval = __eth_bond_slave_add_lock_free(bonded_port_id, slave_port_id);
626 
627 	rte_spinlock_unlock(&internals->lock);
628 
629 	return retval;
630 }
631 
632 static int
633 __eth_bond_slave_remove_lock_free(uint16_t bonded_port_id,
634 				   uint16_t slave_port_id)
635 {
636 	struct rte_eth_dev *bonded_eth_dev;
637 	struct bond_dev_private *internals;
638 	struct rte_eth_dev *slave_eth_dev;
639 	struct rte_flow_error flow_error;
640 	struct rte_flow *flow;
641 	int i, slave_idx;
642 
643 	bonded_eth_dev = &rte_eth_devices[bonded_port_id];
644 	internals = bonded_eth_dev->data->dev_private;
645 
646 	if (valid_slave_port_id(internals, slave_port_id) < 0)
647 		return -1;
648 
649 	/* first remove from active slave list */
650 	slave_idx = find_slave_by_id(internals->active_slaves,
651 		internals->active_slave_count, slave_port_id);
652 
653 	if (slave_idx < internals->active_slave_count)
654 		deactivate_slave(bonded_eth_dev, slave_port_id);
655 
656 	slave_idx = -1;
657 	/* now find in slave list */
658 	for (i = 0; i < internals->slave_count; i++)
659 		if (internals->slaves[i].port_id == slave_port_id) {
660 			slave_idx = i;
661 			break;
662 		}
663 
664 	if (slave_idx < 0) {
665 		RTE_BOND_LOG(ERR, "Couldn't find slave in port list, slave count %d",
666 				internals->slave_count);
667 		return -1;
668 	}
669 
670 	/* Un-register link status change callback with bonded device pointer as
671 	 * argument*/
672 	rte_eth_dev_callback_unregister(slave_port_id, RTE_ETH_EVENT_INTR_LSC,
673 			bond_ethdev_lsc_event_callback,
674 			&rte_eth_devices[bonded_port_id].data->port_id);
675 
676 	/* Restore original MAC address of slave device */
677 	rte_eth_dev_default_mac_addr_set(slave_port_id,
678 			&(internals->slaves[slave_idx].persisted_mac_addr));
679 
680 	/* remove additional MAC addresses from the slave */
681 	slave_remove_mac_addresses(bonded_eth_dev, slave_port_id);
682 
683 	/*
684 	 * Remove bond device flows from slave device.
685 	 * Note: don't restore flow isolate mode.
686 	 */
687 	TAILQ_FOREACH(flow, &internals->flow_list, next) {
688 		if (flow->flows[slave_idx] != NULL) {
689 			rte_flow_destroy(slave_port_id, flow->flows[slave_idx],
690 					 &flow_error);
691 			flow->flows[slave_idx] = NULL;
692 		}
693 	}
694 
695 	slave_eth_dev = &rte_eth_devices[slave_port_id];
696 	slave_remove(internals, slave_eth_dev);
697 	slave_eth_dev->data->dev_flags &= (~RTE_ETH_DEV_BONDED_SLAVE);
698 
699 	/*  first slave in the active list will be the primary by default,
700 	 *  otherwise use first device in list */
701 	if (internals->current_primary_port == slave_port_id) {
702 		if (internals->active_slave_count > 0)
703 			internals->current_primary_port = internals->active_slaves[0];
704 		else if (internals->slave_count > 0)
705 			internals->current_primary_port = internals->slaves[0].port_id;
706 		else
707 			internals->primary_port = 0;
708 		mac_address_slaves_update(bonded_eth_dev);
709 	}
710 
711 	if (internals->active_slave_count < 1) {
712 		/* if no slaves are any longer attached to bonded device and MAC is not
713 		 * user defined then clear MAC of bonded device as it will be reset
714 		 * when a new slave is added */
715 		if (internals->slave_count < 1 && !internals->user_defined_mac)
716 			memset(rte_eth_devices[bonded_port_id].data->mac_addrs, 0,
717 					sizeof(*(rte_eth_devices[bonded_port_id].data->mac_addrs)));
718 	}
719 	if (internals->slave_count == 0) {
720 		internals->rx_offload_capa = 0;
721 		internals->tx_offload_capa = 0;
722 		internals->rx_queue_offload_capa = 0;
723 		internals->tx_queue_offload_capa = 0;
724 		internals->flow_type_rss_offloads = ETH_RSS_PROTO_MASK;
725 		internals->reta_size = 0;
726 		internals->candidate_max_rx_pktlen = 0;
727 		internals->max_rx_pktlen = 0;
728 	}
729 	return 0;
730 }
731 
732 int
733 rte_eth_bond_slave_remove(uint16_t bonded_port_id, uint16_t slave_port_id)
734 {
735 	struct rte_eth_dev *bonded_eth_dev;
736 	struct bond_dev_private *internals;
737 	int retval;
738 
739 	if (valid_bonded_port_id(bonded_port_id) != 0)
740 		return -1;
741 
742 	bonded_eth_dev = &rte_eth_devices[bonded_port_id];
743 	internals = bonded_eth_dev->data->dev_private;
744 
745 	rte_spinlock_lock(&internals->lock);
746 
747 	retval = __eth_bond_slave_remove_lock_free(bonded_port_id, slave_port_id);
748 
749 	rte_spinlock_unlock(&internals->lock);
750 
751 	return retval;
752 }
753 
754 int
755 rte_eth_bond_mode_set(uint16_t bonded_port_id, uint8_t mode)
756 {
757 	struct rte_eth_dev *bonded_eth_dev;
758 
759 	if (valid_bonded_port_id(bonded_port_id) != 0)
760 		return -1;
761 
762 	bonded_eth_dev = &rte_eth_devices[bonded_port_id];
763 
764 	if (check_for_master_bonded_ethdev(bonded_eth_dev) != 0 &&
765 			mode == BONDING_MODE_8023AD)
766 		return -1;
767 
768 	return bond_ethdev_mode_set(bonded_eth_dev, mode);
769 }
770 
771 int
772 rte_eth_bond_mode_get(uint16_t bonded_port_id)
773 {
774 	struct bond_dev_private *internals;
775 
776 	if (valid_bonded_port_id(bonded_port_id) != 0)
777 		return -1;
778 
779 	internals = rte_eth_devices[bonded_port_id].data->dev_private;
780 
781 	return internals->mode;
782 }
783 
784 int
785 rte_eth_bond_primary_set(uint16_t bonded_port_id, uint16_t slave_port_id)
786 {
787 	struct bond_dev_private *internals;
788 
789 	if (valid_bonded_port_id(bonded_port_id) != 0)
790 		return -1;
791 
792 	internals = rte_eth_devices[bonded_port_id].data->dev_private;
793 
794 	if (valid_slave_port_id(internals, slave_port_id) != 0)
795 		return -1;
796 
797 	internals->user_defined_primary_port = 1;
798 	internals->primary_port = slave_port_id;
799 
800 	bond_ethdev_primary_set(internals, slave_port_id);
801 
802 	return 0;
803 }
804 
805 int
806 rte_eth_bond_primary_get(uint16_t bonded_port_id)
807 {
808 	struct bond_dev_private *internals;
809 
810 	if (valid_bonded_port_id(bonded_port_id) != 0)
811 		return -1;
812 
813 	internals = rte_eth_devices[bonded_port_id].data->dev_private;
814 
815 	if (internals->slave_count < 1)
816 		return -1;
817 
818 	return internals->current_primary_port;
819 }
820 
821 int
822 rte_eth_bond_slaves_get(uint16_t bonded_port_id, uint16_t slaves[],
823 			uint16_t len)
824 {
825 	struct bond_dev_private *internals;
826 	uint16_t i;
827 
828 	if (valid_bonded_port_id(bonded_port_id) != 0)
829 		return -1;
830 
831 	if (slaves == NULL)
832 		return -1;
833 
834 	internals = rte_eth_devices[bonded_port_id].data->dev_private;
835 
836 	if (internals->slave_count > len)
837 		return -1;
838 
839 	for (i = 0; i < internals->slave_count; i++)
840 		slaves[i] = internals->slaves[i].port_id;
841 
842 	return internals->slave_count;
843 }
844 
845 int
846 rte_eth_bond_active_slaves_get(uint16_t bonded_port_id, uint16_t slaves[],
847 		uint16_t len)
848 {
849 	struct bond_dev_private *internals;
850 
851 	if (valid_bonded_port_id(bonded_port_id) != 0)
852 		return -1;
853 
854 	if (slaves == NULL)
855 		return -1;
856 
857 	internals = rte_eth_devices[bonded_port_id].data->dev_private;
858 
859 	if (internals->active_slave_count > len)
860 		return -1;
861 
862 	memcpy(slaves, internals->active_slaves,
863 	internals->active_slave_count * sizeof(internals->active_slaves[0]));
864 
865 	return internals->active_slave_count;
866 }
867 
868 int
869 rte_eth_bond_mac_address_set(uint16_t bonded_port_id,
870 		struct rte_ether_addr *mac_addr)
871 {
872 	struct rte_eth_dev *bonded_eth_dev;
873 	struct bond_dev_private *internals;
874 
875 	if (valid_bonded_port_id(bonded_port_id) != 0)
876 		return -1;
877 
878 	bonded_eth_dev = &rte_eth_devices[bonded_port_id];
879 	internals = bonded_eth_dev->data->dev_private;
880 
881 	/* Set MAC Address of Bonded Device */
882 	if (mac_address_set(bonded_eth_dev, mac_addr))
883 		return -1;
884 
885 	internals->user_defined_mac = 1;
886 
887 	/* Update all slave devices MACs*/
888 	if (internals->slave_count > 0)
889 		return mac_address_slaves_update(bonded_eth_dev);
890 
891 	return 0;
892 }
893 
894 int
895 rte_eth_bond_mac_address_reset(uint16_t bonded_port_id)
896 {
897 	struct rte_eth_dev *bonded_eth_dev;
898 	struct bond_dev_private *internals;
899 
900 	if (valid_bonded_port_id(bonded_port_id) != 0)
901 		return -1;
902 
903 	bonded_eth_dev = &rte_eth_devices[bonded_port_id];
904 	internals = bonded_eth_dev->data->dev_private;
905 
906 	internals->user_defined_mac = 0;
907 
908 	if (internals->slave_count > 0) {
909 		int slave_port;
910 		/* Get the primary slave location based on the primary port
911 		 * number as, while slave_add(), we will keep the primary
912 		 * slave based on slave_count,but not based on the primary port.
913 		 */
914 		for (slave_port = 0; slave_port < internals->slave_count;
915 		     slave_port++) {
916 			if (internals->slaves[slave_port].port_id ==
917 			    internals->primary_port)
918 				break;
919 		}
920 
921 		/* Set MAC Address of Bonded Device */
922 		if (mac_address_set(bonded_eth_dev,
923 			&internals->slaves[slave_port].persisted_mac_addr)
924 				!= 0) {
925 			RTE_BOND_LOG(ERR, "Failed to set MAC address on bonded device");
926 			return -1;
927 		}
928 		/* Update all slave devices MAC addresses */
929 		return mac_address_slaves_update(bonded_eth_dev);
930 	}
931 	/* No need to update anything as no slaves present */
932 	return 0;
933 }
934 
935 int
936 rte_eth_bond_xmit_policy_set(uint16_t bonded_port_id, uint8_t policy)
937 {
938 	struct bond_dev_private *internals;
939 
940 	if (valid_bonded_port_id(bonded_port_id) != 0)
941 		return -1;
942 
943 	internals = rte_eth_devices[bonded_port_id].data->dev_private;
944 
945 	switch (policy) {
946 	case BALANCE_XMIT_POLICY_LAYER2:
947 		internals->balance_xmit_policy = policy;
948 		internals->burst_xmit_hash = burst_xmit_l2_hash;
949 		break;
950 	case BALANCE_XMIT_POLICY_LAYER23:
951 		internals->balance_xmit_policy = policy;
952 		internals->burst_xmit_hash = burst_xmit_l23_hash;
953 		break;
954 	case BALANCE_XMIT_POLICY_LAYER34:
955 		internals->balance_xmit_policy = policy;
956 		internals->burst_xmit_hash = burst_xmit_l34_hash;
957 		break;
958 
959 	default:
960 		return -1;
961 	}
962 	return 0;
963 }
964 
965 int
966 rte_eth_bond_xmit_policy_get(uint16_t bonded_port_id)
967 {
968 	struct bond_dev_private *internals;
969 
970 	if (valid_bonded_port_id(bonded_port_id) != 0)
971 		return -1;
972 
973 	internals = rte_eth_devices[bonded_port_id].data->dev_private;
974 
975 	return internals->balance_xmit_policy;
976 }
977 
978 int
979 rte_eth_bond_link_monitoring_set(uint16_t bonded_port_id, uint32_t internal_ms)
980 {
981 	struct bond_dev_private *internals;
982 
983 	if (valid_bonded_port_id(bonded_port_id) != 0)
984 		return -1;
985 
986 	internals = rte_eth_devices[bonded_port_id].data->dev_private;
987 	internals->link_status_polling_interval_ms = internal_ms;
988 
989 	return 0;
990 }
991 
992 int
993 rte_eth_bond_link_monitoring_get(uint16_t bonded_port_id)
994 {
995 	struct bond_dev_private *internals;
996 
997 	if (valid_bonded_port_id(bonded_port_id) != 0)
998 		return -1;
999 
1000 	internals = rte_eth_devices[bonded_port_id].data->dev_private;
1001 
1002 	return internals->link_status_polling_interval_ms;
1003 }
1004 
1005 int
1006 rte_eth_bond_link_down_prop_delay_set(uint16_t bonded_port_id,
1007 				       uint32_t delay_ms)
1008 
1009 {
1010 	struct bond_dev_private *internals;
1011 
1012 	if (valid_bonded_port_id(bonded_port_id) != 0)
1013 		return -1;
1014 
1015 	internals = rte_eth_devices[bonded_port_id].data->dev_private;
1016 	internals->link_down_delay_ms = delay_ms;
1017 
1018 	return 0;
1019 }
1020 
1021 int
1022 rte_eth_bond_link_down_prop_delay_get(uint16_t bonded_port_id)
1023 {
1024 	struct bond_dev_private *internals;
1025 
1026 	if (valid_bonded_port_id(bonded_port_id) != 0)
1027 		return -1;
1028 
1029 	internals = rte_eth_devices[bonded_port_id].data->dev_private;
1030 
1031 	return internals->link_down_delay_ms;
1032 }
1033 
1034 int
1035 rte_eth_bond_link_up_prop_delay_set(uint16_t bonded_port_id, uint32_t delay_ms)
1036 
1037 {
1038 	struct bond_dev_private *internals;
1039 
1040 	if (valid_bonded_port_id(bonded_port_id) != 0)
1041 		return -1;
1042 
1043 	internals = rte_eth_devices[bonded_port_id].data->dev_private;
1044 	internals->link_up_delay_ms = delay_ms;
1045 
1046 	return 0;
1047 }
1048 
1049 int
1050 rte_eth_bond_link_up_prop_delay_get(uint16_t bonded_port_id)
1051 {
1052 	struct bond_dev_private *internals;
1053 
1054 	if (valid_bonded_port_id(bonded_port_id) != 0)
1055 		return -1;
1056 
1057 	internals = rte_eth_devices[bonded_port_id].data->dev_private;
1058 
1059 	return internals->link_up_delay_ms;
1060 }
1061