xref: /dpdk/drivers/net/sfc/sfc_ethdev.c (revision cd8da5e83d3af679caa015d194b35c3812f105db)
1 /* SPDX-License-Identifier: BSD-3-Clause
2  *
3  * Copyright (c) 2016-2018 Solarflare Communications Inc.
4  * All rights reserved.
5  *
6  * This software was jointly developed between OKTET Labs (under contract
7  * for Solarflare) and Solarflare Communications, Inc.
8  */
9 
10 #include <rte_dev.h>
11 #include <rte_ethdev.h>
12 #include <rte_ethdev_pci.h>
13 #include <rte_pci.h>
14 #include <rte_bus_pci.h>
15 #include <rte_errno.h>
16 
17 #include "efx.h"
18 
19 #include "sfc.h"
20 #include "sfc_debug.h"
21 #include "sfc_log.h"
22 #include "sfc_kvargs.h"
23 #include "sfc_ev.h"
24 #include "sfc_rx.h"
25 #include "sfc_tx.h"
26 #include "sfc_flow.h"
27 #include "sfc_dp.h"
28 #include "sfc_dp_rx.h"
29 
30 static struct sfc_dp_list sfc_dp_head =
31 	TAILQ_HEAD_INITIALIZER(sfc_dp_head);
32 
33 static int
34 sfc_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
35 {
36 	struct sfc_adapter *sa = dev->data->dev_private;
37 	efx_nic_fw_info_t enfi;
38 	int ret;
39 	int rc;
40 
41 	/*
42 	 * Return value of the callback is likely supposed to be
43 	 * equal to or greater than 0, nevertheless, if an error
44 	 * occurs, it will be desirable to pass it to the caller
45 	 */
46 	if ((fw_version == NULL) || (fw_size == 0))
47 		return -EINVAL;
48 
49 	rc = efx_nic_get_fw_version(sa->nic, &enfi);
50 	if (rc != 0)
51 		return -rc;
52 
53 	ret = snprintf(fw_version, fw_size,
54 		       "%" PRIu16 ".%" PRIu16 ".%" PRIu16 ".%" PRIu16,
55 		       enfi.enfi_mc_fw_version[0], enfi.enfi_mc_fw_version[1],
56 		       enfi.enfi_mc_fw_version[2], enfi.enfi_mc_fw_version[3]);
57 	if (ret < 0)
58 		return ret;
59 
60 	if (enfi.enfi_dpcpu_fw_ids_valid) {
61 		size_t dpcpu_fw_ids_offset = MIN(fw_size - 1, (size_t)ret);
62 		int ret_extra;
63 
64 		ret_extra = snprintf(fw_version + dpcpu_fw_ids_offset,
65 				     fw_size - dpcpu_fw_ids_offset,
66 				     " rx%" PRIx16 " tx%" PRIx16,
67 				     enfi.enfi_rx_dpcpu_fw_id,
68 				     enfi.enfi_tx_dpcpu_fw_id);
69 		if (ret_extra < 0)
70 			return ret_extra;
71 
72 		ret += ret_extra;
73 	}
74 
75 	if (fw_size < (size_t)(++ret))
76 		return ret;
77 	else
78 		return 0;
79 }
80 
81 static void
82 sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
83 {
84 	struct sfc_adapter *sa = dev->data->dev_private;
85 	const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
86 
87 	sfc_log_init(sa, "entry");
88 
89 	dev_info->pci_dev = RTE_ETH_DEV_TO_PCI(dev);
90 	dev_info->max_rx_pktlen = EFX_MAC_PDU_MAX;
91 
92 	/* Autonegotiation may be disabled */
93 	dev_info->speed_capa = ETH_LINK_SPEED_FIXED;
94 	if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_1000FDX)
95 		dev_info->speed_capa |= ETH_LINK_SPEED_1G;
96 	if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_10000FDX)
97 		dev_info->speed_capa |= ETH_LINK_SPEED_10G;
98 	if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_40000FDX)
99 		dev_info->speed_capa |= ETH_LINK_SPEED_40G;
100 
101 	dev_info->max_rx_queues = sa->rxq_max;
102 	dev_info->max_tx_queues = sa->txq_max;
103 
104 	/* By default packets are dropped if no descriptors are available */
105 	dev_info->default_rxconf.rx_drop_en = 1;
106 
107 	dev_info->rx_offload_capa = sfc_rx_get_dev_offload_caps(sa);
108 
109 	dev_info->tx_offload_capa =
110 		DEV_TX_OFFLOAD_IPV4_CKSUM |
111 		DEV_TX_OFFLOAD_UDP_CKSUM |
112 		DEV_TX_OFFLOAD_TCP_CKSUM;
113 
114 	if (encp->enc_tunnel_encapsulations_supported != 0)
115 		dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM;
116 
117 	dev_info->default_txconf.txq_flags = ETH_TXQ_FLAGS_NOXSUMSCTP;
118 	if ((~sa->dp_tx->features & SFC_DP_TX_FEAT_VLAN_INSERT) ||
119 	    !encp->enc_hw_tx_insert_vlan_enabled)
120 		dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOVLANOFFL;
121 	else
122 		dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_VLAN_INSERT;
123 
124 	if (~sa->dp_tx->features & SFC_DP_TX_FEAT_MULTI_SEG)
125 		dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
126 
127 	if (~sa->dp_tx->features & SFC_DP_TX_FEAT_MULTI_POOL)
128 		dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOMULTMEMP;
129 
130 	if (~sa->dp_tx->features & SFC_DP_TX_FEAT_REFCNT)
131 		dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOREFCOUNT;
132 
133 #if EFSYS_OPT_RX_SCALE
134 	if (sa->rss_support != EFX_RX_SCALE_UNAVAILABLE) {
135 		dev_info->reta_size = EFX_RSS_TBL_SIZE;
136 		dev_info->hash_key_size = EFX_RSS_KEY_SIZE;
137 		dev_info->flow_type_rss_offloads = SFC_RSS_OFFLOADS;
138 	}
139 #endif
140 
141 	if (sa->tso)
142 		dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_TCP_TSO;
143 
144 	/* Initialize to hardware limits */
145 	dev_info->rx_desc_lim.nb_max = EFX_RXQ_MAXNDESCS;
146 	dev_info->rx_desc_lim.nb_min = EFX_RXQ_MINNDESCS;
147 	/* The RXQ hardware requires that the descriptor count is a power
148 	 * of 2, but rx_desc_lim cannot properly describe that constraint.
149 	 */
150 	dev_info->rx_desc_lim.nb_align = EFX_RXQ_MINNDESCS;
151 
152 	/* Initialize to hardware limits */
153 	dev_info->tx_desc_lim.nb_max = sa->txq_max_entries;
154 	dev_info->tx_desc_lim.nb_min = EFX_TXQ_MINNDESCS;
155 	/*
156 	 * The TXQ hardware requires that the descriptor count is a power
157 	 * of 2, but tx_desc_lim cannot properly describe that constraint
158 	 */
159 	dev_info->tx_desc_lim.nb_align = EFX_TXQ_MINNDESCS;
160 
161 	if (sa->dp_rx->get_dev_info != NULL)
162 		sa->dp_rx->get_dev_info(dev_info);
163 	if (sa->dp_tx->get_dev_info != NULL)
164 		sa->dp_tx->get_dev_info(dev_info);
165 }
166 
167 static const uint32_t *
168 sfc_dev_supported_ptypes_get(struct rte_eth_dev *dev)
169 {
170 	struct sfc_adapter *sa = dev->data->dev_private;
171 	const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
172 	uint32_t tunnel_encaps = encp->enc_tunnel_encapsulations_supported;
173 
174 	return sa->dp_rx->supported_ptypes_get(tunnel_encaps);
175 }
176 
177 static int
178 sfc_dev_configure(struct rte_eth_dev *dev)
179 {
180 	struct rte_eth_dev_data *dev_data = dev->data;
181 	struct sfc_adapter *sa = dev_data->dev_private;
182 	int rc;
183 
184 	sfc_log_init(sa, "entry n_rxq=%u n_txq=%u",
185 		     dev_data->nb_rx_queues, dev_data->nb_tx_queues);
186 
187 	sfc_adapter_lock(sa);
188 	switch (sa->state) {
189 	case SFC_ADAPTER_CONFIGURED:
190 		/* FALLTHROUGH */
191 	case SFC_ADAPTER_INITIALIZED:
192 		rc = sfc_configure(sa);
193 		break;
194 	default:
195 		sfc_err(sa, "unexpected adapter state %u to configure",
196 			sa->state);
197 		rc = EINVAL;
198 		break;
199 	}
200 	sfc_adapter_unlock(sa);
201 
202 	sfc_log_init(sa, "done %d", rc);
203 	SFC_ASSERT(rc >= 0);
204 	return -rc;
205 }
206 
207 static int
208 sfc_dev_start(struct rte_eth_dev *dev)
209 {
210 	struct sfc_adapter *sa = dev->data->dev_private;
211 	int rc;
212 
213 	sfc_log_init(sa, "entry");
214 
215 	sfc_adapter_lock(sa);
216 	rc = sfc_start(sa);
217 	sfc_adapter_unlock(sa);
218 
219 	sfc_log_init(sa, "done %d", rc);
220 	SFC_ASSERT(rc >= 0);
221 	return -rc;
222 }
223 
224 static int
225 sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
226 {
227 	struct sfc_adapter *sa = dev->data->dev_private;
228 	struct rte_eth_link *dev_link = &dev->data->dev_link;
229 	struct rte_eth_link old_link;
230 	struct rte_eth_link current_link;
231 
232 	sfc_log_init(sa, "entry");
233 
234 retry:
235 	EFX_STATIC_ASSERT(sizeof(*dev_link) == sizeof(rte_atomic64_t));
236 	*(int64_t *)&old_link = rte_atomic64_read((rte_atomic64_t *)dev_link);
237 
238 	if (sa->state != SFC_ADAPTER_STARTED) {
239 		sfc_port_link_mode_to_info(EFX_LINK_UNKNOWN, &current_link);
240 		if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
241 					 *(uint64_t *)&old_link,
242 					 *(uint64_t *)&current_link))
243 			goto retry;
244 	} else if (wait_to_complete) {
245 		efx_link_mode_t link_mode;
246 
247 		if (efx_port_poll(sa->nic, &link_mode) != 0)
248 			link_mode = EFX_LINK_UNKNOWN;
249 		sfc_port_link_mode_to_info(link_mode, &current_link);
250 
251 		if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
252 					 *(uint64_t *)&old_link,
253 					 *(uint64_t *)&current_link))
254 			goto retry;
255 	} else {
256 		sfc_ev_mgmt_qpoll(sa);
257 		*(int64_t *)&current_link =
258 			rte_atomic64_read((rte_atomic64_t *)dev_link);
259 	}
260 
261 	if (old_link.link_status != current_link.link_status)
262 		sfc_info(sa, "Link status is %s",
263 			 current_link.link_status ? "UP" : "DOWN");
264 
265 	return old_link.link_status == current_link.link_status ? 0 : -1;
266 }
267 
268 static void
269 sfc_dev_stop(struct rte_eth_dev *dev)
270 {
271 	struct sfc_adapter *sa = dev->data->dev_private;
272 
273 	sfc_log_init(sa, "entry");
274 
275 	sfc_adapter_lock(sa);
276 	sfc_stop(sa);
277 	sfc_adapter_unlock(sa);
278 
279 	sfc_log_init(sa, "done");
280 }
281 
282 static int
283 sfc_dev_set_link_up(struct rte_eth_dev *dev)
284 {
285 	struct sfc_adapter *sa = dev->data->dev_private;
286 	int rc;
287 
288 	sfc_log_init(sa, "entry");
289 
290 	sfc_adapter_lock(sa);
291 	rc = sfc_start(sa);
292 	sfc_adapter_unlock(sa);
293 
294 	SFC_ASSERT(rc >= 0);
295 	return -rc;
296 }
297 
298 static int
299 sfc_dev_set_link_down(struct rte_eth_dev *dev)
300 {
301 	struct sfc_adapter *sa = dev->data->dev_private;
302 
303 	sfc_log_init(sa, "entry");
304 
305 	sfc_adapter_lock(sa);
306 	sfc_stop(sa);
307 	sfc_adapter_unlock(sa);
308 
309 	return 0;
310 }
311 
312 static void
313 sfc_dev_close(struct rte_eth_dev *dev)
314 {
315 	struct sfc_adapter *sa = dev->data->dev_private;
316 
317 	sfc_log_init(sa, "entry");
318 
319 	sfc_adapter_lock(sa);
320 	switch (sa->state) {
321 	case SFC_ADAPTER_STARTED:
322 		sfc_stop(sa);
323 		SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED);
324 		/* FALLTHROUGH */
325 	case SFC_ADAPTER_CONFIGURED:
326 		sfc_close(sa);
327 		SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
328 		/* FALLTHROUGH */
329 	case SFC_ADAPTER_INITIALIZED:
330 		break;
331 	default:
332 		sfc_err(sa, "unexpected adapter state %u on close", sa->state);
333 		break;
334 	}
335 	sfc_adapter_unlock(sa);
336 
337 	sfc_log_init(sa, "done");
338 }
339 
340 static void
341 sfc_dev_filter_set(struct rte_eth_dev *dev, enum sfc_dev_filter_mode mode,
342 		   boolean_t enabled)
343 {
344 	struct sfc_port *port;
345 	boolean_t *toggle;
346 	struct sfc_adapter *sa = dev->data->dev_private;
347 	boolean_t allmulti = (mode == SFC_DEV_FILTER_MODE_ALLMULTI);
348 	const char *desc = (allmulti) ? "all-multi" : "promiscuous";
349 
350 	sfc_adapter_lock(sa);
351 
352 	port = &sa->port;
353 	toggle = (allmulti) ? (&port->allmulti) : (&port->promisc);
354 
355 	if (*toggle != enabled) {
356 		*toggle = enabled;
357 
358 		if (port->isolated) {
359 			sfc_warn(sa, "isolated mode is active on the port");
360 			sfc_warn(sa, "the change is to be applied on the next "
361 				     "start provided that isolated mode is "
362 				     "disabled prior the next start");
363 		} else if ((sa->state == SFC_ADAPTER_STARTED) &&
364 			   (sfc_set_rx_mode(sa) != 0)) {
365 			*toggle = !(enabled);
366 			sfc_warn(sa, "Failed to %s %s mode",
367 				 ((enabled) ? "enable" : "disable"), desc);
368 		}
369 	}
370 
371 	sfc_adapter_unlock(sa);
372 }
373 
374 static void
375 sfc_dev_promisc_enable(struct rte_eth_dev *dev)
376 {
377 	sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_TRUE);
378 }
379 
380 static void
381 sfc_dev_promisc_disable(struct rte_eth_dev *dev)
382 {
383 	sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_FALSE);
384 }
385 
386 static void
387 sfc_dev_allmulti_enable(struct rte_eth_dev *dev)
388 {
389 	sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_TRUE);
390 }
391 
392 static void
393 sfc_dev_allmulti_disable(struct rte_eth_dev *dev)
394 {
395 	sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_FALSE);
396 }
397 
398 static int
399 sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
400 		   uint16_t nb_rx_desc, unsigned int socket_id,
401 		   const struct rte_eth_rxconf *rx_conf,
402 		   struct rte_mempool *mb_pool)
403 {
404 	struct sfc_adapter *sa = dev->data->dev_private;
405 	int rc;
406 
407 	sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u",
408 		     rx_queue_id, nb_rx_desc, socket_id);
409 
410 	sfc_adapter_lock(sa);
411 
412 	rc = sfc_rx_qinit(sa, rx_queue_id, nb_rx_desc, socket_id,
413 			  rx_conf, mb_pool);
414 	if (rc != 0)
415 		goto fail_rx_qinit;
416 
417 	dev->data->rx_queues[rx_queue_id] = sa->rxq_info[rx_queue_id].rxq->dp;
418 
419 	sfc_adapter_unlock(sa);
420 
421 	return 0;
422 
423 fail_rx_qinit:
424 	sfc_adapter_unlock(sa);
425 	SFC_ASSERT(rc > 0);
426 	return -rc;
427 }
428 
429 static void
430 sfc_rx_queue_release(void *queue)
431 {
432 	struct sfc_dp_rxq *dp_rxq = queue;
433 	struct sfc_rxq *rxq;
434 	struct sfc_adapter *sa;
435 	unsigned int sw_index;
436 
437 	if (dp_rxq == NULL)
438 		return;
439 
440 	rxq = sfc_rxq_by_dp_rxq(dp_rxq);
441 	sa = rxq->evq->sa;
442 	sfc_adapter_lock(sa);
443 
444 	sw_index = sfc_rxq_sw_index(rxq);
445 
446 	sfc_log_init(sa, "RxQ=%u", sw_index);
447 
448 	sa->eth_dev->data->rx_queues[sw_index] = NULL;
449 
450 	sfc_rx_qfini(sa, sw_index);
451 
452 	sfc_adapter_unlock(sa);
453 }
454 
455 static int
456 sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
457 		   uint16_t nb_tx_desc, unsigned int socket_id,
458 		   const struct rte_eth_txconf *tx_conf)
459 {
460 	struct sfc_adapter *sa = dev->data->dev_private;
461 	int rc;
462 
463 	sfc_log_init(sa, "TxQ = %u, nb_tx_desc = %u, socket_id = %u",
464 		     tx_queue_id, nb_tx_desc, socket_id);
465 
466 	sfc_adapter_lock(sa);
467 
468 	rc = sfc_tx_qinit(sa, tx_queue_id, nb_tx_desc, socket_id, tx_conf);
469 	if (rc != 0)
470 		goto fail_tx_qinit;
471 
472 	dev->data->tx_queues[tx_queue_id] = sa->txq_info[tx_queue_id].txq->dp;
473 
474 	sfc_adapter_unlock(sa);
475 	return 0;
476 
477 fail_tx_qinit:
478 	sfc_adapter_unlock(sa);
479 	SFC_ASSERT(rc > 0);
480 	return -rc;
481 }
482 
483 static void
484 sfc_tx_queue_release(void *queue)
485 {
486 	struct sfc_dp_txq *dp_txq = queue;
487 	struct sfc_txq *txq;
488 	unsigned int sw_index;
489 	struct sfc_adapter *sa;
490 
491 	if (dp_txq == NULL)
492 		return;
493 
494 	txq = sfc_txq_by_dp_txq(dp_txq);
495 	sw_index = sfc_txq_sw_index(txq);
496 
497 	SFC_ASSERT(txq->evq != NULL);
498 	sa = txq->evq->sa;
499 
500 	sfc_log_init(sa, "TxQ = %u", sw_index);
501 
502 	sfc_adapter_lock(sa);
503 
504 	SFC_ASSERT(sw_index < sa->eth_dev->data->nb_tx_queues);
505 	sa->eth_dev->data->tx_queues[sw_index] = NULL;
506 
507 	sfc_tx_qfini(sa, sw_index);
508 
509 	sfc_adapter_unlock(sa);
510 }
511 
512 static int
513 sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
514 {
515 	struct sfc_adapter *sa = dev->data->dev_private;
516 	struct sfc_port *port = &sa->port;
517 	uint64_t *mac_stats;
518 	int ret;
519 
520 	rte_spinlock_lock(&port->mac_stats_lock);
521 
522 	ret = sfc_port_update_mac_stats(sa);
523 	if (ret != 0)
524 		goto unlock;
525 
526 	mac_stats = port->mac_stats_buf;
527 
528 	if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask,
529 				   EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) {
530 		stats->ipackets =
531 			mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] +
532 			mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] +
533 			mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS];
534 		stats->opackets =
535 			mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] +
536 			mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] +
537 			mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS];
538 		stats->ibytes =
539 			mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] +
540 			mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] +
541 			mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES];
542 		stats->obytes =
543 			mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] +
544 			mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] +
545 			mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES];
546 		stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_OVERFLOW];
547 		stats->ierrors = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS];
548 		stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS];
549 	} else {
550 		stats->ipackets = mac_stats[EFX_MAC_RX_PKTS];
551 		stats->opackets = mac_stats[EFX_MAC_TX_PKTS];
552 		stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS];
553 		stats->obytes = mac_stats[EFX_MAC_TX_OCTETS];
554 		/*
555 		 * Take into account stats which are whenever supported
556 		 * on EF10. If some stat is not supported by current
557 		 * firmware variant or HW revision, it is guaranteed
558 		 * to be zero in mac_stats.
559 		 */
560 		stats->imissed =
561 			mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] +
562 			mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] +
563 			mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] +
564 			mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] +
565 			mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] +
566 			mac_stats[EFX_MAC_PM_TRUNC_QBB] +
567 			mac_stats[EFX_MAC_PM_DISCARD_QBB] +
568 			mac_stats[EFX_MAC_PM_DISCARD_MAPPING] +
569 			mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] +
570 			mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS];
571 		stats->ierrors =
572 			mac_stats[EFX_MAC_RX_FCS_ERRORS] +
573 			mac_stats[EFX_MAC_RX_ALIGN_ERRORS] +
574 			mac_stats[EFX_MAC_RX_JABBER_PKTS];
575 		/* no oerrors counters supported on EF10 */
576 	}
577 
578 unlock:
579 	rte_spinlock_unlock(&port->mac_stats_lock);
580 	SFC_ASSERT(ret >= 0);
581 	return -ret;
582 }
583 
584 static void
585 sfc_stats_reset(struct rte_eth_dev *dev)
586 {
587 	struct sfc_adapter *sa = dev->data->dev_private;
588 	struct sfc_port *port = &sa->port;
589 	int rc;
590 
591 	if (sa->state != SFC_ADAPTER_STARTED) {
592 		/*
593 		 * The operation cannot be done if port is not started; it
594 		 * will be scheduled to be done during the next port start
595 		 */
596 		port->mac_stats_reset_pending = B_TRUE;
597 		return;
598 	}
599 
600 	rc = sfc_port_reset_mac_stats(sa);
601 	if (rc != 0)
602 		sfc_err(sa, "failed to reset statistics (rc = %d)", rc);
603 }
604 
605 static int
606 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
607 	       unsigned int xstats_count)
608 {
609 	struct sfc_adapter *sa = dev->data->dev_private;
610 	struct sfc_port *port = &sa->port;
611 	uint64_t *mac_stats;
612 	int rc;
613 	unsigned int i;
614 	int nstats = 0;
615 
616 	rte_spinlock_lock(&port->mac_stats_lock);
617 
618 	rc = sfc_port_update_mac_stats(sa);
619 	if (rc != 0) {
620 		SFC_ASSERT(rc > 0);
621 		nstats = -rc;
622 		goto unlock;
623 	}
624 
625 	mac_stats = port->mac_stats_buf;
626 
627 	for (i = 0; i < EFX_MAC_NSTATS; ++i) {
628 		if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
629 			if (xstats != NULL && nstats < (int)xstats_count) {
630 				xstats[nstats].id = nstats;
631 				xstats[nstats].value = mac_stats[i];
632 			}
633 			nstats++;
634 		}
635 	}
636 
637 unlock:
638 	rte_spinlock_unlock(&port->mac_stats_lock);
639 
640 	return nstats;
641 }
642 
643 static int
644 sfc_xstats_get_names(struct rte_eth_dev *dev,
645 		     struct rte_eth_xstat_name *xstats_names,
646 		     unsigned int xstats_count)
647 {
648 	struct sfc_adapter *sa = dev->data->dev_private;
649 	struct sfc_port *port = &sa->port;
650 	unsigned int i;
651 	unsigned int nstats = 0;
652 
653 	for (i = 0; i < EFX_MAC_NSTATS; ++i) {
654 		if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
655 			if (xstats_names != NULL && nstats < xstats_count)
656 				strncpy(xstats_names[nstats].name,
657 					efx_mac_stat_name(sa->nic, i),
658 					sizeof(xstats_names[0].name));
659 			nstats++;
660 		}
661 	}
662 
663 	return nstats;
664 }
665 
666 static int
667 sfc_xstats_get_by_id(struct rte_eth_dev *dev, const uint64_t *ids,
668 		     uint64_t *values, unsigned int n)
669 {
670 	struct sfc_adapter *sa = dev->data->dev_private;
671 	struct sfc_port *port = &sa->port;
672 	uint64_t *mac_stats;
673 	unsigned int nb_supported = 0;
674 	unsigned int nb_written = 0;
675 	unsigned int i;
676 	int ret;
677 	int rc;
678 
679 	if (unlikely(values == NULL) ||
680 	    unlikely((ids == NULL) && (n < port->mac_stats_nb_supported)))
681 		return port->mac_stats_nb_supported;
682 
683 	rte_spinlock_lock(&port->mac_stats_lock);
684 
685 	rc = sfc_port_update_mac_stats(sa);
686 	if (rc != 0) {
687 		SFC_ASSERT(rc > 0);
688 		ret = -rc;
689 		goto unlock;
690 	}
691 
692 	mac_stats = port->mac_stats_buf;
693 
694 	for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < n); ++i) {
695 		if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
696 			continue;
697 
698 		if ((ids == NULL) || (ids[nb_written] == nb_supported))
699 			values[nb_written++] = mac_stats[i];
700 
701 		++nb_supported;
702 	}
703 
704 	ret = nb_written;
705 
706 unlock:
707 	rte_spinlock_unlock(&port->mac_stats_lock);
708 
709 	return ret;
710 }
711 
712 static int
713 sfc_xstats_get_names_by_id(struct rte_eth_dev *dev,
714 			   struct rte_eth_xstat_name *xstats_names,
715 			   const uint64_t *ids, unsigned int size)
716 {
717 	struct sfc_adapter *sa = dev->data->dev_private;
718 	struct sfc_port *port = &sa->port;
719 	unsigned int nb_supported = 0;
720 	unsigned int nb_written = 0;
721 	unsigned int i;
722 
723 	if (unlikely(xstats_names == NULL) ||
724 	    unlikely((ids == NULL) && (size < port->mac_stats_nb_supported)))
725 		return port->mac_stats_nb_supported;
726 
727 	for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < size); ++i) {
728 		if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
729 			continue;
730 
731 		if ((ids == NULL) || (ids[nb_written] == nb_supported)) {
732 			char *name = xstats_names[nb_written++].name;
733 
734 			strncpy(name, efx_mac_stat_name(sa->nic, i),
735 				sizeof(xstats_names[0].name));
736 			name[sizeof(xstats_names[0].name) - 1] = '\0';
737 		}
738 
739 		++nb_supported;
740 	}
741 
742 	return nb_written;
743 }
744 
745 static int
746 sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
747 {
748 	struct sfc_adapter *sa = dev->data->dev_private;
749 	unsigned int wanted_fc, link_fc;
750 
751 	memset(fc_conf, 0, sizeof(*fc_conf));
752 
753 	sfc_adapter_lock(sa);
754 
755 	if (sa->state == SFC_ADAPTER_STARTED)
756 		efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc);
757 	else
758 		link_fc = sa->port.flow_ctrl;
759 
760 	switch (link_fc) {
761 	case 0:
762 		fc_conf->mode = RTE_FC_NONE;
763 		break;
764 	case EFX_FCNTL_RESPOND:
765 		fc_conf->mode = RTE_FC_RX_PAUSE;
766 		break;
767 	case EFX_FCNTL_GENERATE:
768 		fc_conf->mode = RTE_FC_TX_PAUSE;
769 		break;
770 	case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE):
771 		fc_conf->mode = RTE_FC_FULL;
772 		break;
773 	default:
774 		sfc_err(sa, "%s: unexpected flow control value %#x",
775 			__func__, link_fc);
776 	}
777 
778 	fc_conf->autoneg = sa->port.flow_ctrl_autoneg;
779 
780 	sfc_adapter_unlock(sa);
781 
782 	return 0;
783 }
784 
785 static int
786 sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
787 {
788 	struct sfc_adapter *sa = dev->data->dev_private;
789 	struct sfc_port *port = &sa->port;
790 	unsigned int fcntl;
791 	int rc;
792 
793 	if (fc_conf->high_water != 0 || fc_conf->low_water != 0 ||
794 	    fc_conf->pause_time != 0 || fc_conf->send_xon != 0 ||
795 	    fc_conf->mac_ctrl_frame_fwd != 0) {
796 		sfc_err(sa, "unsupported flow control settings specified");
797 		rc = EINVAL;
798 		goto fail_inval;
799 	}
800 
801 	switch (fc_conf->mode) {
802 	case RTE_FC_NONE:
803 		fcntl = 0;
804 		break;
805 	case RTE_FC_RX_PAUSE:
806 		fcntl = EFX_FCNTL_RESPOND;
807 		break;
808 	case RTE_FC_TX_PAUSE:
809 		fcntl = EFX_FCNTL_GENERATE;
810 		break;
811 	case RTE_FC_FULL:
812 		fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
813 		break;
814 	default:
815 		rc = EINVAL;
816 		goto fail_inval;
817 	}
818 
819 	sfc_adapter_lock(sa);
820 
821 	if (sa->state == SFC_ADAPTER_STARTED) {
822 		rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg);
823 		if (rc != 0)
824 			goto fail_mac_fcntl_set;
825 	}
826 
827 	port->flow_ctrl = fcntl;
828 	port->flow_ctrl_autoneg = fc_conf->autoneg;
829 
830 	sfc_adapter_unlock(sa);
831 
832 	return 0;
833 
834 fail_mac_fcntl_set:
835 	sfc_adapter_unlock(sa);
836 fail_inval:
837 	SFC_ASSERT(rc > 0);
838 	return -rc;
839 }
840 
841 static int
842 sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
843 {
844 	struct sfc_adapter *sa = dev->data->dev_private;
845 	size_t pdu = EFX_MAC_PDU(mtu);
846 	size_t old_pdu;
847 	int rc;
848 
849 	sfc_log_init(sa, "mtu=%u", mtu);
850 
851 	rc = EINVAL;
852 	if (pdu < EFX_MAC_PDU_MIN) {
853 		sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
854 			(unsigned int)mtu, (unsigned int)pdu,
855 			EFX_MAC_PDU_MIN);
856 		goto fail_inval;
857 	}
858 	if (pdu > EFX_MAC_PDU_MAX) {
859 		sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
860 			(unsigned int)mtu, (unsigned int)pdu,
861 			EFX_MAC_PDU_MAX);
862 		goto fail_inval;
863 	}
864 
865 	sfc_adapter_lock(sa);
866 
867 	if (pdu != sa->port.pdu) {
868 		if (sa->state == SFC_ADAPTER_STARTED) {
869 			sfc_stop(sa);
870 
871 			old_pdu = sa->port.pdu;
872 			sa->port.pdu = pdu;
873 			rc = sfc_start(sa);
874 			if (rc != 0)
875 				goto fail_start;
876 		} else {
877 			sa->port.pdu = pdu;
878 		}
879 	}
880 
881 	/*
882 	 * The driver does not use it, but other PMDs update jumbo_frame
883 	 * flag and max_rx_pkt_len when MTU is set.
884 	 */
885 	dev->data->dev_conf.rxmode.jumbo_frame = (mtu > ETHER_MAX_LEN);
886 	dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
887 
888 	sfc_adapter_unlock(sa);
889 
890 	sfc_log_init(sa, "done");
891 	return 0;
892 
893 fail_start:
894 	sa->port.pdu = old_pdu;
895 	if (sfc_start(sa) != 0)
896 		sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
897 			"PDU max size - port is stopped",
898 			(unsigned int)pdu, (unsigned int)old_pdu);
899 	sfc_adapter_unlock(sa);
900 
901 fail_inval:
902 	sfc_log_init(sa, "failed %d", rc);
903 	SFC_ASSERT(rc > 0);
904 	return -rc;
905 }
906 static void
907 sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
908 {
909 	struct sfc_adapter *sa = dev->data->dev_private;
910 	const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
911 	struct sfc_port *port = &sa->port;
912 	int rc;
913 
914 	sfc_adapter_lock(sa);
915 
916 	/*
917 	 * Copy the address to the device private data so that
918 	 * it could be recalled in the case of adapter restart.
919 	 */
920 	ether_addr_copy(mac_addr, &port->default_mac_addr);
921 
922 	if (port->isolated) {
923 		sfc_err(sa, "isolated mode is active on the port");
924 		sfc_err(sa, "will not set MAC address");
925 		goto unlock;
926 	}
927 
928 	if (sa->state != SFC_ADAPTER_STARTED) {
929 		sfc_info(sa, "the port is not started");
930 		sfc_info(sa, "the new MAC address will be set on port start");
931 
932 		goto unlock;
933 	}
934 
935 	if (encp->enc_allow_set_mac_with_installed_filters) {
936 		rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
937 		if (rc != 0) {
938 			sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
939 			goto unlock;
940 		}
941 
942 		/*
943 		 * Changing the MAC address by means of MCDI request
944 		 * has no effect on received traffic, therefore
945 		 * we also need to update unicast filters
946 		 */
947 		rc = sfc_set_rx_mode(sa);
948 		if (rc != 0)
949 			sfc_err(sa, "cannot set filter (rc = %u)", rc);
950 	} else {
951 		sfc_warn(sa, "cannot set MAC address with filters installed");
952 		sfc_warn(sa, "adapter will be restarted to pick the new MAC");
953 		sfc_warn(sa, "(some traffic may be dropped)");
954 
955 		/*
956 		 * Since setting MAC address with filters installed is not
957 		 * allowed on the adapter, the new MAC address will be set
958 		 * by means of adapter restart. sfc_start() shall retrieve
959 		 * the new address from the device private data and set it.
960 		 */
961 		sfc_stop(sa);
962 		rc = sfc_start(sa);
963 		if (rc != 0)
964 			sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
965 	}
966 
967 unlock:
968 	/*
969 	 * In the case of failure sa->port->default_mac_addr does not
970 	 * need rollback since no error code is returned, and the upper
971 	 * API will anyway update the external MAC address storage.
972 	 * To be consistent with that new value it is better to keep
973 	 * the device private value the same.
974 	 */
975 	sfc_adapter_unlock(sa);
976 }
977 
978 
979 static int
980 sfc_set_mc_addr_list(struct rte_eth_dev *dev, struct ether_addr *mc_addr_set,
981 		     uint32_t nb_mc_addr)
982 {
983 	struct sfc_adapter *sa = dev->data->dev_private;
984 	struct sfc_port *port = &sa->port;
985 	uint8_t *mc_addrs = port->mcast_addrs;
986 	int rc;
987 	unsigned int i;
988 
989 	if (port->isolated) {
990 		sfc_err(sa, "isolated mode is active on the port");
991 		sfc_err(sa, "will not set multicast address list");
992 		return -ENOTSUP;
993 	}
994 
995 	if (mc_addrs == NULL)
996 		return -ENOBUFS;
997 
998 	if (nb_mc_addr > port->max_mcast_addrs) {
999 		sfc_err(sa, "too many multicast addresses: %u > %u",
1000 			 nb_mc_addr, port->max_mcast_addrs);
1001 		return -EINVAL;
1002 	}
1003 
1004 	for (i = 0; i < nb_mc_addr; ++i) {
1005 		rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
1006 				 EFX_MAC_ADDR_LEN);
1007 		mc_addrs += EFX_MAC_ADDR_LEN;
1008 	}
1009 
1010 	port->nb_mcast_addrs = nb_mc_addr;
1011 
1012 	if (sa->state != SFC_ADAPTER_STARTED)
1013 		return 0;
1014 
1015 	rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
1016 					port->nb_mcast_addrs);
1017 	if (rc != 0)
1018 		sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
1019 
1020 	SFC_ASSERT(rc > 0);
1021 	return -rc;
1022 }
1023 
1024 /*
1025  * The function is used by the secondary process as well. It must not
1026  * use any process-local pointers from the adapter data.
1027  */
1028 static void
1029 sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
1030 		      struct rte_eth_rxq_info *qinfo)
1031 {
1032 	struct sfc_adapter *sa = dev->data->dev_private;
1033 	struct sfc_rxq_info *rxq_info;
1034 	struct sfc_rxq *rxq;
1035 
1036 	sfc_adapter_lock(sa);
1037 
1038 	SFC_ASSERT(rx_queue_id < sa->rxq_count);
1039 
1040 	rxq_info = &sa->rxq_info[rx_queue_id];
1041 	rxq = rxq_info->rxq;
1042 	SFC_ASSERT(rxq != NULL);
1043 
1044 	qinfo->mp = rxq->refill_mb_pool;
1045 	qinfo->conf.rx_free_thresh = rxq->refill_threshold;
1046 	qinfo->conf.rx_drop_en = 1;
1047 	qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
1048 	qinfo->scattered_rx =
1049 		((rxq_info->type_flags & EFX_RXQ_FLAG_SCATTER) != 0);
1050 	qinfo->nb_desc = rxq_info->entries;
1051 
1052 	sfc_adapter_unlock(sa);
1053 }
1054 
1055 /*
1056  * The function is used by the secondary process as well. It must not
1057  * use any process-local pointers from the adapter data.
1058  */
1059 static void
1060 sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
1061 		      struct rte_eth_txq_info *qinfo)
1062 {
1063 	struct sfc_adapter *sa = dev->data->dev_private;
1064 	struct sfc_txq_info *txq_info;
1065 
1066 	sfc_adapter_lock(sa);
1067 
1068 	SFC_ASSERT(tx_queue_id < sa->txq_count);
1069 
1070 	txq_info = &sa->txq_info[tx_queue_id];
1071 	SFC_ASSERT(txq_info->txq != NULL);
1072 
1073 	memset(qinfo, 0, sizeof(*qinfo));
1074 
1075 	qinfo->conf.txq_flags = txq_info->txq->flags;
1076 	qinfo->conf.tx_free_thresh = txq_info->txq->free_thresh;
1077 	qinfo->conf.tx_deferred_start = txq_info->deferred_start;
1078 	qinfo->nb_desc = txq_info->entries;
1079 
1080 	sfc_adapter_unlock(sa);
1081 }
1082 
1083 static uint32_t
1084 sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1085 {
1086 	struct sfc_adapter *sa = dev->data->dev_private;
1087 
1088 	sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1089 
1090 	return sfc_rx_qdesc_npending(sa, rx_queue_id);
1091 }
1092 
1093 static int
1094 sfc_rx_descriptor_done(void *queue, uint16_t offset)
1095 {
1096 	struct sfc_dp_rxq *dp_rxq = queue;
1097 
1098 	return sfc_rx_qdesc_done(dp_rxq, offset);
1099 }
1100 
1101 static int
1102 sfc_rx_descriptor_status(void *queue, uint16_t offset)
1103 {
1104 	struct sfc_dp_rxq *dp_rxq = queue;
1105 	struct sfc_rxq *rxq = sfc_rxq_by_dp_rxq(dp_rxq);
1106 
1107 	return rxq->evq->sa->dp_rx->qdesc_status(dp_rxq, offset);
1108 }
1109 
1110 static int
1111 sfc_tx_descriptor_status(void *queue, uint16_t offset)
1112 {
1113 	struct sfc_dp_txq *dp_txq = queue;
1114 	struct sfc_txq *txq = sfc_txq_by_dp_txq(dp_txq);
1115 
1116 	return txq->evq->sa->dp_tx->qdesc_status(dp_txq, offset);
1117 }
1118 
1119 static int
1120 sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1121 {
1122 	struct sfc_adapter *sa = dev->data->dev_private;
1123 	int rc;
1124 
1125 	sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1126 
1127 	sfc_adapter_lock(sa);
1128 
1129 	rc = EINVAL;
1130 	if (sa->state != SFC_ADAPTER_STARTED)
1131 		goto fail_not_started;
1132 
1133 	rc = sfc_rx_qstart(sa, rx_queue_id);
1134 	if (rc != 0)
1135 		goto fail_rx_qstart;
1136 
1137 	sa->rxq_info[rx_queue_id].deferred_started = B_TRUE;
1138 
1139 	sfc_adapter_unlock(sa);
1140 
1141 	return 0;
1142 
1143 fail_rx_qstart:
1144 fail_not_started:
1145 	sfc_adapter_unlock(sa);
1146 	SFC_ASSERT(rc > 0);
1147 	return -rc;
1148 }
1149 
1150 static int
1151 sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1152 {
1153 	struct sfc_adapter *sa = dev->data->dev_private;
1154 
1155 	sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1156 
1157 	sfc_adapter_lock(sa);
1158 	sfc_rx_qstop(sa, rx_queue_id);
1159 
1160 	sa->rxq_info[rx_queue_id].deferred_started = B_FALSE;
1161 
1162 	sfc_adapter_unlock(sa);
1163 
1164 	return 0;
1165 }
1166 
1167 static int
1168 sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1169 {
1170 	struct sfc_adapter *sa = dev->data->dev_private;
1171 	int rc;
1172 
1173 	sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1174 
1175 	sfc_adapter_lock(sa);
1176 
1177 	rc = EINVAL;
1178 	if (sa->state != SFC_ADAPTER_STARTED)
1179 		goto fail_not_started;
1180 
1181 	rc = sfc_tx_qstart(sa, tx_queue_id);
1182 	if (rc != 0)
1183 		goto fail_tx_qstart;
1184 
1185 	sa->txq_info[tx_queue_id].deferred_started = B_TRUE;
1186 
1187 	sfc_adapter_unlock(sa);
1188 	return 0;
1189 
1190 fail_tx_qstart:
1191 
1192 fail_not_started:
1193 	sfc_adapter_unlock(sa);
1194 	SFC_ASSERT(rc > 0);
1195 	return -rc;
1196 }
1197 
1198 static int
1199 sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1200 {
1201 	struct sfc_adapter *sa = dev->data->dev_private;
1202 
1203 	sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1204 
1205 	sfc_adapter_lock(sa);
1206 
1207 	sfc_tx_qstop(sa, tx_queue_id);
1208 
1209 	sa->txq_info[tx_queue_id].deferred_started = B_FALSE;
1210 
1211 	sfc_adapter_unlock(sa);
1212 	return 0;
1213 }
1214 
1215 static efx_tunnel_protocol_t
1216 sfc_tunnel_rte_type_to_efx_udp_proto(enum rte_eth_tunnel_type rte_type)
1217 {
1218 	switch (rte_type) {
1219 	case RTE_TUNNEL_TYPE_VXLAN:
1220 		return EFX_TUNNEL_PROTOCOL_VXLAN;
1221 	case RTE_TUNNEL_TYPE_GENEVE:
1222 		return EFX_TUNNEL_PROTOCOL_GENEVE;
1223 	default:
1224 		return EFX_TUNNEL_NPROTOS;
1225 	}
1226 }
1227 
1228 enum sfc_udp_tunnel_op_e {
1229 	SFC_UDP_TUNNEL_ADD_PORT,
1230 	SFC_UDP_TUNNEL_DEL_PORT,
1231 };
1232 
1233 static int
1234 sfc_dev_udp_tunnel_op(struct rte_eth_dev *dev,
1235 		      struct rte_eth_udp_tunnel *tunnel_udp,
1236 		      enum sfc_udp_tunnel_op_e op)
1237 {
1238 	struct sfc_adapter *sa = dev->data->dev_private;
1239 	efx_tunnel_protocol_t tunnel_proto;
1240 	int rc;
1241 
1242 	sfc_log_init(sa, "%s udp_port=%u prot_type=%u",
1243 		     (op == SFC_UDP_TUNNEL_ADD_PORT) ? "add" :
1244 		     (op == SFC_UDP_TUNNEL_DEL_PORT) ? "delete" : "unknown",
1245 		     tunnel_udp->udp_port, tunnel_udp->prot_type);
1246 
1247 	tunnel_proto =
1248 		sfc_tunnel_rte_type_to_efx_udp_proto(tunnel_udp->prot_type);
1249 	if (tunnel_proto >= EFX_TUNNEL_NPROTOS) {
1250 		rc = ENOTSUP;
1251 		goto fail_bad_proto;
1252 	}
1253 
1254 	sfc_adapter_lock(sa);
1255 
1256 	switch (op) {
1257 	case SFC_UDP_TUNNEL_ADD_PORT:
1258 		rc = efx_tunnel_config_udp_add(sa->nic,
1259 					       tunnel_udp->udp_port,
1260 					       tunnel_proto);
1261 		break;
1262 	case SFC_UDP_TUNNEL_DEL_PORT:
1263 		rc = efx_tunnel_config_udp_remove(sa->nic,
1264 						  tunnel_udp->udp_port,
1265 						  tunnel_proto);
1266 		break;
1267 	default:
1268 		rc = EINVAL;
1269 		goto fail_bad_op;
1270 	}
1271 
1272 	if (rc != 0)
1273 		goto fail_op;
1274 
1275 	if (sa->state == SFC_ADAPTER_STARTED) {
1276 		rc = efx_tunnel_reconfigure(sa->nic);
1277 		if (rc == EAGAIN) {
1278 			/*
1279 			 * Configuration is accepted by FW and MC reboot
1280 			 * is initiated to apply the changes. MC reboot
1281 			 * will be handled in a usual way (MC reboot
1282 			 * event on management event queue and adapter
1283 			 * restart).
1284 			 */
1285 			rc = 0;
1286 		} else if (rc != 0) {
1287 			goto fail_reconfigure;
1288 		}
1289 	}
1290 
1291 	sfc_adapter_unlock(sa);
1292 	return 0;
1293 
1294 fail_reconfigure:
1295 	/* Remove/restore entry since the change makes the trouble */
1296 	switch (op) {
1297 	case SFC_UDP_TUNNEL_ADD_PORT:
1298 		(void)efx_tunnel_config_udp_remove(sa->nic,
1299 						   tunnel_udp->udp_port,
1300 						   tunnel_proto);
1301 		break;
1302 	case SFC_UDP_TUNNEL_DEL_PORT:
1303 		(void)efx_tunnel_config_udp_add(sa->nic,
1304 						tunnel_udp->udp_port,
1305 						tunnel_proto);
1306 		break;
1307 	}
1308 
1309 fail_op:
1310 fail_bad_op:
1311 	sfc_adapter_unlock(sa);
1312 
1313 fail_bad_proto:
1314 	SFC_ASSERT(rc > 0);
1315 	return -rc;
1316 }
1317 
1318 static int
1319 sfc_dev_udp_tunnel_port_add(struct rte_eth_dev *dev,
1320 			    struct rte_eth_udp_tunnel *tunnel_udp)
1321 {
1322 	return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_ADD_PORT);
1323 }
1324 
1325 static int
1326 sfc_dev_udp_tunnel_port_del(struct rte_eth_dev *dev,
1327 			    struct rte_eth_udp_tunnel *tunnel_udp)
1328 {
1329 	return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_DEL_PORT);
1330 }
1331 
1332 #if EFSYS_OPT_RX_SCALE
1333 static int
1334 sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
1335 			  struct rte_eth_rss_conf *rss_conf)
1336 {
1337 	struct sfc_adapter *sa = dev->data->dev_private;
1338 	struct sfc_port *port = &sa->port;
1339 
1340 	if ((sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) || port->isolated)
1341 		return -ENOTSUP;
1342 
1343 	if (sa->rss_channels == 0)
1344 		return -EINVAL;
1345 
1346 	sfc_adapter_lock(sa);
1347 
1348 	/*
1349 	 * Mapping of hash configuration between RTE and EFX is not one-to-one,
1350 	 * hence, conversion is done here to derive a correct set of ETH_RSS
1351 	 * flags which corresponds to the active EFX configuration stored
1352 	 * locally in 'sfc_adapter' and kept up-to-date
1353 	 */
1354 	rss_conf->rss_hf = sfc_efx_to_rte_hash_type(sa->rss_hash_types);
1355 	rss_conf->rss_key_len = EFX_RSS_KEY_SIZE;
1356 	if (rss_conf->rss_key != NULL)
1357 		rte_memcpy(rss_conf->rss_key, sa->rss_key, EFX_RSS_KEY_SIZE);
1358 
1359 	sfc_adapter_unlock(sa);
1360 
1361 	return 0;
1362 }
1363 
1364 static int
1365 sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
1366 			struct rte_eth_rss_conf *rss_conf)
1367 {
1368 	struct sfc_adapter *sa = dev->data->dev_private;
1369 	struct sfc_port *port = &sa->port;
1370 	unsigned int efx_hash_types;
1371 	int rc = 0;
1372 
1373 	if (port->isolated)
1374 		return -ENOTSUP;
1375 
1376 	if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) {
1377 		sfc_err(sa, "RSS is not available");
1378 		return -ENOTSUP;
1379 	}
1380 
1381 	if (sa->rss_channels == 0) {
1382 		sfc_err(sa, "RSS is not configured");
1383 		return -EINVAL;
1384 	}
1385 
1386 	if ((rss_conf->rss_key != NULL) &&
1387 	    (rss_conf->rss_key_len != sizeof(sa->rss_key))) {
1388 		sfc_err(sa, "RSS key size is wrong (should be %lu)",
1389 			sizeof(sa->rss_key));
1390 		return -EINVAL;
1391 	}
1392 
1393 	if ((rss_conf->rss_hf & ~SFC_RSS_OFFLOADS) != 0) {
1394 		sfc_err(sa, "unsupported hash functions requested");
1395 		return -EINVAL;
1396 	}
1397 
1398 	sfc_adapter_lock(sa);
1399 
1400 	efx_hash_types = sfc_rte_to_efx_hash_type(rss_conf->rss_hf);
1401 
1402 	rc = efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1403 				   EFX_RX_HASHALG_TOEPLITZ,
1404 				   efx_hash_types, B_TRUE);
1405 	if (rc != 0)
1406 		goto fail_scale_mode_set;
1407 
1408 	if (rss_conf->rss_key != NULL) {
1409 		if (sa->state == SFC_ADAPTER_STARTED) {
1410 			rc = efx_rx_scale_key_set(sa->nic,
1411 						  EFX_RSS_CONTEXT_DEFAULT,
1412 						  rss_conf->rss_key,
1413 						  sizeof(sa->rss_key));
1414 			if (rc != 0)
1415 				goto fail_scale_key_set;
1416 		}
1417 
1418 		rte_memcpy(sa->rss_key, rss_conf->rss_key, sizeof(sa->rss_key));
1419 	}
1420 
1421 	sa->rss_hash_types = efx_hash_types;
1422 
1423 	sfc_adapter_unlock(sa);
1424 
1425 	return 0;
1426 
1427 fail_scale_key_set:
1428 	if (efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1429 				  EFX_RX_HASHALG_TOEPLITZ,
1430 				  sa->rss_hash_types, B_TRUE) != 0)
1431 		sfc_err(sa, "failed to restore RSS mode");
1432 
1433 fail_scale_mode_set:
1434 	sfc_adapter_unlock(sa);
1435 	return -rc;
1436 }
1437 
1438 static int
1439 sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
1440 		       struct rte_eth_rss_reta_entry64 *reta_conf,
1441 		       uint16_t reta_size)
1442 {
1443 	struct sfc_adapter *sa = dev->data->dev_private;
1444 	struct sfc_port *port = &sa->port;
1445 	int entry;
1446 
1447 	if ((sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) || port->isolated)
1448 		return -ENOTSUP;
1449 
1450 	if (sa->rss_channels == 0)
1451 		return -EINVAL;
1452 
1453 	if (reta_size != EFX_RSS_TBL_SIZE)
1454 		return -EINVAL;
1455 
1456 	sfc_adapter_lock(sa);
1457 
1458 	for (entry = 0; entry < reta_size; entry++) {
1459 		int grp = entry / RTE_RETA_GROUP_SIZE;
1460 		int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1461 
1462 		if ((reta_conf[grp].mask >> grp_idx) & 1)
1463 			reta_conf[grp].reta[grp_idx] = sa->rss_tbl[entry];
1464 	}
1465 
1466 	sfc_adapter_unlock(sa);
1467 
1468 	return 0;
1469 }
1470 
1471 static int
1472 sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
1473 			struct rte_eth_rss_reta_entry64 *reta_conf,
1474 			uint16_t reta_size)
1475 {
1476 	struct sfc_adapter *sa = dev->data->dev_private;
1477 	struct sfc_port *port = &sa->port;
1478 	unsigned int *rss_tbl_new;
1479 	uint16_t entry;
1480 	int rc = 0;
1481 
1482 
1483 	if (port->isolated)
1484 		return -ENOTSUP;
1485 
1486 	if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) {
1487 		sfc_err(sa, "RSS is not available");
1488 		return -ENOTSUP;
1489 	}
1490 
1491 	if (sa->rss_channels == 0) {
1492 		sfc_err(sa, "RSS is not configured");
1493 		return -EINVAL;
1494 	}
1495 
1496 	if (reta_size != EFX_RSS_TBL_SIZE) {
1497 		sfc_err(sa, "RETA size is wrong (should be %u)",
1498 			EFX_RSS_TBL_SIZE);
1499 		return -EINVAL;
1500 	}
1501 
1502 	rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(sa->rss_tbl), 0);
1503 	if (rss_tbl_new == NULL)
1504 		return -ENOMEM;
1505 
1506 	sfc_adapter_lock(sa);
1507 
1508 	rte_memcpy(rss_tbl_new, sa->rss_tbl, sizeof(sa->rss_tbl));
1509 
1510 	for (entry = 0; entry < reta_size; entry++) {
1511 		int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1512 		struct rte_eth_rss_reta_entry64 *grp;
1513 
1514 		grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE];
1515 
1516 		if (grp->mask & (1ull << grp_idx)) {
1517 			if (grp->reta[grp_idx] >= sa->rss_channels) {
1518 				rc = EINVAL;
1519 				goto bad_reta_entry;
1520 			}
1521 			rss_tbl_new[entry] = grp->reta[grp_idx];
1522 		}
1523 	}
1524 
1525 	if (sa->state == SFC_ADAPTER_STARTED) {
1526 		rc = efx_rx_scale_tbl_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1527 					  rss_tbl_new, EFX_RSS_TBL_SIZE);
1528 		if (rc != 0)
1529 			goto fail_scale_tbl_set;
1530 	}
1531 
1532 	rte_memcpy(sa->rss_tbl, rss_tbl_new, sizeof(sa->rss_tbl));
1533 
1534 fail_scale_tbl_set:
1535 bad_reta_entry:
1536 	sfc_adapter_unlock(sa);
1537 
1538 	rte_free(rss_tbl_new);
1539 
1540 	SFC_ASSERT(rc >= 0);
1541 	return -rc;
1542 }
1543 #endif
1544 
1545 static int
1546 sfc_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
1547 		    enum rte_filter_op filter_op,
1548 		    void *arg)
1549 {
1550 	struct sfc_adapter *sa = dev->data->dev_private;
1551 	int rc = ENOTSUP;
1552 
1553 	sfc_log_init(sa, "entry");
1554 
1555 	switch (filter_type) {
1556 	case RTE_ETH_FILTER_NONE:
1557 		sfc_err(sa, "Global filters configuration not supported");
1558 		break;
1559 	case RTE_ETH_FILTER_MACVLAN:
1560 		sfc_err(sa, "MACVLAN filters not supported");
1561 		break;
1562 	case RTE_ETH_FILTER_ETHERTYPE:
1563 		sfc_err(sa, "EtherType filters not supported");
1564 		break;
1565 	case RTE_ETH_FILTER_FLEXIBLE:
1566 		sfc_err(sa, "Flexible filters not supported");
1567 		break;
1568 	case RTE_ETH_FILTER_SYN:
1569 		sfc_err(sa, "SYN filters not supported");
1570 		break;
1571 	case RTE_ETH_FILTER_NTUPLE:
1572 		sfc_err(sa, "NTUPLE filters not supported");
1573 		break;
1574 	case RTE_ETH_FILTER_TUNNEL:
1575 		sfc_err(sa, "Tunnel filters not supported");
1576 		break;
1577 	case RTE_ETH_FILTER_FDIR:
1578 		sfc_err(sa, "Flow Director filters not supported");
1579 		break;
1580 	case RTE_ETH_FILTER_HASH:
1581 		sfc_err(sa, "Hash filters not supported");
1582 		break;
1583 	case RTE_ETH_FILTER_GENERIC:
1584 		if (filter_op != RTE_ETH_FILTER_GET) {
1585 			rc = EINVAL;
1586 		} else {
1587 			*(const void **)arg = &sfc_flow_ops;
1588 			rc = 0;
1589 		}
1590 		break;
1591 	default:
1592 		sfc_err(sa, "Unknown filter type %u", filter_type);
1593 		break;
1594 	}
1595 
1596 	sfc_log_init(sa, "exit: %d", -rc);
1597 	SFC_ASSERT(rc >= 0);
1598 	return -rc;
1599 }
1600 
1601 static const struct eth_dev_ops sfc_eth_dev_ops = {
1602 	.dev_configure			= sfc_dev_configure,
1603 	.dev_start			= sfc_dev_start,
1604 	.dev_stop			= sfc_dev_stop,
1605 	.dev_set_link_up		= sfc_dev_set_link_up,
1606 	.dev_set_link_down		= sfc_dev_set_link_down,
1607 	.dev_close			= sfc_dev_close,
1608 	.promiscuous_enable		= sfc_dev_promisc_enable,
1609 	.promiscuous_disable		= sfc_dev_promisc_disable,
1610 	.allmulticast_enable		= sfc_dev_allmulti_enable,
1611 	.allmulticast_disable		= sfc_dev_allmulti_disable,
1612 	.link_update			= sfc_dev_link_update,
1613 	.stats_get			= sfc_stats_get,
1614 	.stats_reset			= sfc_stats_reset,
1615 	.xstats_get			= sfc_xstats_get,
1616 	.xstats_reset			= sfc_stats_reset,
1617 	.xstats_get_names		= sfc_xstats_get_names,
1618 	.dev_infos_get			= sfc_dev_infos_get,
1619 	.dev_supported_ptypes_get	= sfc_dev_supported_ptypes_get,
1620 	.mtu_set			= sfc_dev_set_mtu,
1621 	.rx_queue_start			= sfc_rx_queue_start,
1622 	.rx_queue_stop			= sfc_rx_queue_stop,
1623 	.tx_queue_start			= sfc_tx_queue_start,
1624 	.tx_queue_stop			= sfc_tx_queue_stop,
1625 	.rx_queue_setup			= sfc_rx_queue_setup,
1626 	.rx_queue_release		= sfc_rx_queue_release,
1627 	.rx_queue_count			= sfc_rx_queue_count,
1628 	.rx_descriptor_done		= sfc_rx_descriptor_done,
1629 	.rx_descriptor_status		= sfc_rx_descriptor_status,
1630 	.tx_descriptor_status		= sfc_tx_descriptor_status,
1631 	.tx_queue_setup			= sfc_tx_queue_setup,
1632 	.tx_queue_release		= sfc_tx_queue_release,
1633 	.flow_ctrl_get			= sfc_flow_ctrl_get,
1634 	.flow_ctrl_set			= sfc_flow_ctrl_set,
1635 	.mac_addr_set			= sfc_mac_addr_set,
1636 	.udp_tunnel_port_add		= sfc_dev_udp_tunnel_port_add,
1637 	.udp_tunnel_port_del		= sfc_dev_udp_tunnel_port_del,
1638 #if EFSYS_OPT_RX_SCALE
1639 	.reta_update			= sfc_dev_rss_reta_update,
1640 	.reta_query			= sfc_dev_rss_reta_query,
1641 	.rss_hash_update		= sfc_dev_rss_hash_update,
1642 	.rss_hash_conf_get		= sfc_dev_rss_hash_conf_get,
1643 #endif
1644 	.filter_ctrl			= sfc_dev_filter_ctrl,
1645 	.set_mc_addr_list		= sfc_set_mc_addr_list,
1646 	.rxq_info_get			= sfc_rx_queue_info_get,
1647 	.txq_info_get			= sfc_tx_queue_info_get,
1648 	.fw_version_get			= sfc_fw_version_get,
1649 	.xstats_get_by_id		= sfc_xstats_get_by_id,
1650 	.xstats_get_names_by_id		= sfc_xstats_get_names_by_id,
1651 };
1652 
1653 /**
1654  * Duplicate a string in potentially shared memory required for
1655  * multi-process support.
1656  *
1657  * strdup() allocates from process-local heap/memory.
1658  */
1659 static char *
1660 sfc_strdup(const char *str)
1661 {
1662 	size_t size;
1663 	char *copy;
1664 
1665 	if (str == NULL)
1666 		return NULL;
1667 
1668 	size = strlen(str) + 1;
1669 	copy = rte_malloc(__func__, size, 0);
1670 	if (copy != NULL)
1671 		rte_memcpy(copy, str, size);
1672 
1673 	return copy;
1674 }
1675 
1676 static int
1677 sfc_eth_dev_set_ops(struct rte_eth_dev *dev)
1678 {
1679 	struct sfc_adapter *sa = dev->data->dev_private;
1680 	unsigned int avail_caps = 0;
1681 	const char *rx_name = NULL;
1682 	const char *tx_name = NULL;
1683 	int rc;
1684 
1685 	switch (sa->family) {
1686 	case EFX_FAMILY_HUNTINGTON:
1687 	case EFX_FAMILY_MEDFORD:
1688 		avail_caps |= SFC_DP_HW_FW_CAP_EF10;
1689 		break;
1690 	default:
1691 		break;
1692 	}
1693 
1694 	rc = sfc_kvargs_process(sa, SFC_KVARG_RX_DATAPATH,
1695 				sfc_kvarg_string_handler, &rx_name);
1696 	if (rc != 0)
1697 		goto fail_kvarg_rx_datapath;
1698 
1699 	if (rx_name != NULL) {
1700 		sa->dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, rx_name);
1701 		if (sa->dp_rx == NULL) {
1702 			sfc_err(sa, "Rx datapath %s not found", rx_name);
1703 			rc = ENOENT;
1704 			goto fail_dp_rx;
1705 		}
1706 		if (!sfc_dp_match_hw_fw_caps(&sa->dp_rx->dp, avail_caps)) {
1707 			sfc_err(sa,
1708 				"Insufficient Hw/FW capabilities to use Rx datapath %s",
1709 				rx_name);
1710 			rc = EINVAL;
1711 			goto fail_dp_rx_caps;
1712 		}
1713 	} else {
1714 		sa->dp_rx = sfc_dp_find_rx_by_caps(&sfc_dp_head, avail_caps);
1715 		if (sa->dp_rx == NULL) {
1716 			sfc_err(sa, "Rx datapath by caps %#x not found",
1717 				avail_caps);
1718 			rc = ENOENT;
1719 			goto fail_dp_rx;
1720 		}
1721 	}
1722 
1723 	sa->dp_rx_name = sfc_strdup(sa->dp_rx->dp.name);
1724 	if (sa->dp_rx_name == NULL) {
1725 		rc = ENOMEM;
1726 		goto fail_dp_rx_name;
1727 	}
1728 
1729 	sfc_info(sa, "use %s Rx datapath", sa->dp_rx_name);
1730 
1731 	dev->rx_pkt_burst = sa->dp_rx->pkt_burst;
1732 
1733 	rc = sfc_kvargs_process(sa, SFC_KVARG_TX_DATAPATH,
1734 				sfc_kvarg_string_handler, &tx_name);
1735 	if (rc != 0)
1736 		goto fail_kvarg_tx_datapath;
1737 
1738 	if (tx_name != NULL) {
1739 		sa->dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, tx_name);
1740 		if (sa->dp_tx == NULL) {
1741 			sfc_err(sa, "Tx datapath %s not found", tx_name);
1742 			rc = ENOENT;
1743 			goto fail_dp_tx;
1744 		}
1745 		if (!sfc_dp_match_hw_fw_caps(&sa->dp_tx->dp, avail_caps)) {
1746 			sfc_err(sa,
1747 				"Insufficient Hw/FW capabilities to use Tx datapath %s",
1748 				tx_name);
1749 			rc = EINVAL;
1750 			goto fail_dp_tx_caps;
1751 		}
1752 	} else {
1753 		sa->dp_tx = sfc_dp_find_tx_by_caps(&sfc_dp_head, avail_caps);
1754 		if (sa->dp_tx == NULL) {
1755 			sfc_err(sa, "Tx datapath by caps %#x not found",
1756 				avail_caps);
1757 			rc = ENOENT;
1758 			goto fail_dp_tx;
1759 		}
1760 	}
1761 
1762 	sa->dp_tx_name = sfc_strdup(sa->dp_tx->dp.name);
1763 	if (sa->dp_tx_name == NULL) {
1764 		rc = ENOMEM;
1765 		goto fail_dp_tx_name;
1766 	}
1767 
1768 	sfc_info(sa, "use %s Tx datapath", sa->dp_tx_name);
1769 
1770 	dev->tx_pkt_burst = sa->dp_tx->pkt_burst;
1771 
1772 	dev->dev_ops = &sfc_eth_dev_ops;
1773 
1774 	return 0;
1775 
1776 fail_dp_tx_name:
1777 fail_dp_tx_caps:
1778 	sa->dp_tx = NULL;
1779 
1780 fail_dp_tx:
1781 fail_kvarg_tx_datapath:
1782 	rte_free(sa->dp_rx_name);
1783 	sa->dp_rx_name = NULL;
1784 
1785 fail_dp_rx_name:
1786 fail_dp_rx_caps:
1787 	sa->dp_rx = NULL;
1788 
1789 fail_dp_rx:
1790 fail_kvarg_rx_datapath:
1791 	return rc;
1792 }
1793 
1794 static void
1795 sfc_eth_dev_clear_ops(struct rte_eth_dev *dev)
1796 {
1797 	struct sfc_adapter *sa = dev->data->dev_private;
1798 
1799 	dev->dev_ops = NULL;
1800 	dev->rx_pkt_burst = NULL;
1801 	dev->tx_pkt_burst = NULL;
1802 
1803 	rte_free(sa->dp_tx_name);
1804 	sa->dp_tx_name = NULL;
1805 	sa->dp_tx = NULL;
1806 
1807 	rte_free(sa->dp_rx_name);
1808 	sa->dp_rx_name = NULL;
1809 	sa->dp_rx = NULL;
1810 }
1811 
1812 static const struct eth_dev_ops sfc_eth_dev_secondary_ops = {
1813 	.rxq_info_get			= sfc_rx_queue_info_get,
1814 	.txq_info_get			= sfc_tx_queue_info_get,
1815 };
1816 
1817 static int
1818 sfc_eth_dev_secondary_set_ops(struct rte_eth_dev *dev)
1819 {
1820 	/*
1821 	 * Device private data has really many process-local pointers.
1822 	 * Below code should be extremely careful to use data located
1823 	 * in shared memory only.
1824 	 */
1825 	struct sfc_adapter *sa = dev->data->dev_private;
1826 	const struct sfc_dp_rx *dp_rx;
1827 	const struct sfc_dp_tx *dp_tx;
1828 	int rc;
1829 
1830 	dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, sa->dp_rx_name);
1831 	if (dp_rx == NULL) {
1832 		sfc_err(sa, "cannot find %s Rx datapath", sa->dp_tx_name);
1833 		rc = ENOENT;
1834 		goto fail_dp_rx;
1835 	}
1836 	if (~dp_rx->features & SFC_DP_RX_FEAT_MULTI_PROCESS) {
1837 		sfc_err(sa, "%s Rx datapath does not support multi-process",
1838 			sa->dp_tx_name);
1839 		rc = EINVAL;
1840 		goto fail_dp_rx_multi_process;
1841 	}
1842 
1843 	dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, sa->dp_tx_name);
1844 	if (dp_tx == NULL) {
1845 		sfc_err(sa, "cannot find %s Tx datapath", sa->dp_tx_name);
1846 		rc = ENOENT;
1847 		goto fail_dp_tx;
1848 	}
1849 	if (~dp_tx->features & SFC_DP_TX_FEAT_MULTI_PROCESS) {
1850 		sfc_err(sa, "%s Tx datapath does not support multi-process",
1851 			sa->dp_tx_name);
1852 		rc = EINVAL;
1853 		goto fail_dp_tx_multi_process;
1854 	}
1855 
1856 	dev->rx_pkt_burst = dp_rx->pkt_burst;
1857 	dev->tx_pkt_burst = dp_tx->pkt_burst;
1858 	dev->dev_ops = &sfc_eth_dev_secondary_ops;
1859 
1860 	return 0;
1861 
1862 fail_dp_tx_multi_process:
1863 fail_dp_tx:
1864 fail_dp_rx_multi_process:
1865 fail_dp_rx:
1866 	return rc;
1867 }
1868 
1869 static void
1870 sfc_eth_dev_secondary_clear_ops(struct rte_eth_dev *dev)
1871 {
1872 	dev->dev_ops = NULL;
1873 	dev->tx_pkt_burst = NULL;
1874 	dev->rx_pkt_burst = NULL;
1875 }
1876 
1877 static void
1878 sfc_register_dp(void)
1879 {
1880 	/* Register once */
1881 	if (TAILQ_EMPTY(&sfc_dp_head)) {
1882 		/* Prefer EF10 datapath */
1883 		sfc_dp_register(&sfc_dp_head, &sfc_ef10_rx.dp);
1884 		sfc_dp_register(&sfc_dp_head, &sfc_efx_rx.dp);
1885 
1886 		sfc_dp_register(&sfc_dp_head, &sfc_ef10_tx.dp);
1887 		sfc_dp_register(&sfc_dp_head, &sfc_efx_tx.dp);
1888 		sfc_dp_register(&sfc_dp_head, &sfc_ef10_simple_tx.dp);
1889 	}
1890 }
1891 
1892 static int
1893 sfc_eth_dev_init(struct rte_eth_dev *dev)
1894 {
1895 	struct sfc_adapter *sa = dev->data->dev_private;
1896 	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
1897 	int rc;
1898 	const efx_nic_cfg_t *encp;
1899 	const struct ether_addr *from;
1900 
1901 	sfc_register_dp();
1902 
1903 	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1904 		return -sfc_eth_dev_secondary_set_ops(dev);
1905 
1906 	/* Required for logging */
1907 	sa->pci_addr = pci_dev->addr;
1908 	sa->port_id = dev->data->port_id;
1909 
1910 	sa->eth_dev = dev;
1911 
1912 	/* Copy PCI device info to the dev->data */
1913 	rte_eth_copy_pci_info(dev, pci_dev);
1914 
1915 	rc = sfc_kvargs_parse(sa);
1916 	if (rc != 0)
1917 		goto fail_kvargs_parse;
1918 
1919 	rc = sfc_kvargs_process(sa, SFC_KVARG_DEBUG_INIT,
1920 				sfc_kvarg_bool_handler, &sa->debug_init);
1921 	if (rc != 0)
1922 		goto fail_kvarg_debug_init;
1923 
1924 	sfc_log_init(sa, "entry");
1925 
1926 	dev->data->mac_addrs = rte_zmalloc("sfc", ETHER_ADDR_LEN, 0);
1927 	if (dev->data->mac_addrs == NULL) {
1928 		rc = ENOMEM;
1929 		goto fail_mac_addrs;
1930 	}
1931 
1932 	sfc_adapter_lock_init(sa);
1933 	sfc_adapter_lock(sa);
1934 
1935 	sfc_log_init(sa, "probing");
1936 	rc = sfc_probe(sa);
1937 	if (rc != 0)
1938 		goto fail_probe;
1939 
1940 	sfc_log_init(sa, "set device ops");
1941 	rc = sfc_eth_dev_set_ops(dev);
1942 	if (rc != 0)
1943 		goto fail_set_ops;
1944 
1945 	sfc_log_init(sa, "attaching");
1946 	rc = sfc_attach(sa);
1947 	if (rc != 0)
1948 		goto fail_attach;
1949 
1950 	encp = efx_nic_cfg_get(sa->nic);
1951 
1952 	/*
1953 	 * The arguments are really reverse order in comparison to
1954 	 * Linux kernel. Copy from NIC config to Ethernet device data.
1955 	 */
1956 	from = (const struct ether_addr *)(encp->enc_mac_addr);
1957 	ether_addr_copy(from, &dev->data->mac_addrs[0]);
1958 
1959 	sfc_adapter_unlock(sa);
1960 
1961 	sfc_log_init(sa, "done");
1962 	return 0;
1963 
1964 fail_attach:
1965 	sfc_eth_dev_clear_ops(dev);
1966 
1967 fail_set_ops:
1968 	sfc_unprobe(sa);
1969 
1970 fail_probe:
1971 	sfc_adapter_unlock(sa);
1972 	sfc_adapter_lock_fini(sa);
1973 	rte_free(dev->data->mac_addrs);
1974 	dev->data->mac_addrs = NULL;
1975 
1976 fail_mac_addrs:
1977 fail_kvarg_debug_init:
1978 	sfc_kvargs_cleanup(sa);
1979 
1980 fail_kvargs_parse:
1981 	sfc_log_init(sa, "failed %d", rc);
1982 	SFC_ASSERT(rc > 0);
1983 	return -rc;
1984 }
1985 
1986 static int
1987 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
1988 {
1989 	struct sfc_adapter *sa;
1990 
1991 	if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
1992 		sfc_eth_dev_secondary_clear_ops(dev);
1993 		return 0;
1994 	}
1995 
1996 	sa = dev->data->dev_private;
1997 	sfc_log_init(sa, "entry");
1998 
1999 	sfc_adapter_lock(sa);
2000 
2001 	sfc_eth_dev_clear_ops(dev);
2002 
2003 	sfc_detach(sa);
2004 	sfc_unprobe(sa);
2005 
2006 	rte_free(dev->data->mac_addrs);
2007 	dev->data->mac_addrs = NULL;
2008 
2009 	sfc_kvargs_cleanup(sa);
2010 
2011 	sfc_adapter_unlock(sa);
2012 	sfc_adapter_lock_fini(sa);
2013 
2014 	sfc_log_init(sa, "done");
2015 
2016 	/* Required for logging, so cleanup last */
2017 	sa->eth_dev = NULL;
2018 	return 0;
2019 }
2020 
2021 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
2022 	{ RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
2023 	{ RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE_VF) },
2024 	{ RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
2025 	{ RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT_VF) },
2026 	{ RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
2027 	{ RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD_VF) },
2028 	{ .vendor_id = 0 /* sentinel */ }
2029 };
2030 
2031 static int sfc_eth_dev_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
2032 	struct rte_pci_device *pci_dev)
2033 {
2034 	return rte_eth_dev_pci_generic_probe(pci_dev,
2035 		sizeof(struct sfc_adapter), sfc_eth_dev_init);
2036 }
2037 
2038 static int sfc_eth_dev_pci_remove(struct rte_pci_device *pci_dev)
2039 {
2040 	return rte_eth_dev_pci_generic_remove(pci_dev, sfc_eth_dev_uninit);
2041 }
2042 
2043 static struct rte_pci_driver sfc_efx_pmd = {
2044 	.id_table = pci_id_sfc_efx_map,
2045 	.drv_flags =
2046 		RTE_PCI_DRV_INTR_LSC |
2047 		RTE_PCI_DRV_NEED_MAPPING,
2048 	.probe = sfc_eth_dev_pci_probe,
2049 	.remove = sfc_eth_dev_pci_remove,
2050 };
2051 
2052 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd);
2053 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
2054 RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio-pci");
2055 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
2056 	SFC_KVARG_RX_DATAPATH "=" SFC_KVARG_VALUES_RX_DATAPATH " "
2057 	SFC_KVARG_TX_DATAPATH "=" SFC_KVARG_VALUES_TX_DATAPATH " "
2058 	SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
2059 	SFC_KVARG_STATS_UPDATE_PERIOD_MS "=<long> "
2060 	SFC_KVARG_MCDI_LOGGING "=" SFC_KVARG_VALUES_BOOL " "
2061 	SFC_KVARG_DEBUG_INIT "=" SFC_KVARG_VALUES_BOOL);
2062