xref: /dpdk/drivers/net/cxgbe/cxgbe_ethdev.c (revision e0ae780e)
1 /* SPDX-License-Identifier: BSD-3-Clause
2  * Copyright(c) 2014-2018 Chelsio Communications.
3  * All rights reserved.
4  */
5 
6 #include <sys/queue.h>
7 #include <stdio.h>
8 #include <errno.h>
9 #include <stdint.h>
10 #include <string.h>
11 #include <unistd.h>
12 #include <stdarg.h>
13 #include <inttypes.h>
14 #include <netinet/in.h>
15 
16 #include <rte_byteorder.h>
17 #include <rte_common.h>
18 #include <rte_cycles.h>
19 #include <rte_interrupts.h>
20 #include <rte_log.h>
21 #include <rte_debug.h>
22 #include <rte_pci.h>
23 #include <rte_bus_pci.h>
24 #include <rte_atomic.h>
25 #include <rte_branch_prediction.h>
26 #include <rte_memory.h>
27 #include <rte_tailq.h>
28 #include <rte_eal.h>
29 #include <rte_alarm.h>
30 #include <rte_ether.h>
31 #include <rte_ethdev_driver.h>
32 #include <rte_ethdev_pci.h>
33 #include <rte_malloc.h>
34 #include <rte_random.h>
35 #include <rte_dev.h>
36 
37 #include "cxgbe.h"
38 #include "cxgbe_pfvf.h"
39 #include "cxgbe_flow.h"
40 
41 int cxgbe_logtype;
42 
43 /*
44  * Macros needed to support the PCI Device ID Table ...
45  */
46 #define CH_PCI_DEVICE_ID_TABLE_DEFINE_BEGIN \
47 	static const struct rte_pci_id cxgb4_pci_tbl[] = {
48 #define CH_PCI_DEVICE_ID_FUNCTION 0x4
49 
50 #define PCI_VENDOR_ID_CHELSIO 0x1425
51 
52 #define CH_PCI_ID_TABLE_ENTRY(devid) \
53 		{ RTE_PCI_DEVICE(PCI_VENDOR_ID_CHELSIO, (devid)) }
54 
55 #define CH_PCI_DEVICE_ID_TABLE_DEFINE_END \
56 		{ .vendor_id = 0, } \
57 	}
58 
59 /*
60  *... and the PCI ID Table itself ...
61  */
62 #include "base/t4_pci_id_tbl.h"
63 
64 uint16_t cxgbe_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
65 			 uint16_t nb_pkts)
66 {
67 	struct sge_eth_txq *txq = (struct sge_eth_txq *)tx_queue;
68 	uint16_t pkts_sent, pkts_remain;
69 	uint16_t total_sent = 0;
70 	int ret = 0;
71 
72 	CXGBE_DEBUG_TX(adapter, "%s: txq = %p; tx_pkts = %p; nb_pkts = %d\n",
73 		       __func__, txq, tx_pkts, nb_pkts);
74 
75 	t4_os_lock(&txq->txq_lock);
76 	/* free up desc from already completed tx */
77 	reclaim_completed_tx(&txq->q);
78 	while (total_sent < nb_pkts) {
79 		pkts_remain = nb_pkts - total_sent;
80 
81 		for (pkts_sent = 0; pkts_sent < pkts_remain; pkts_sent++) {
82 			ret = t4_eth_xmit(txq, tx_pkts[total_sent + pkts_sent],
83 					  nb_pkts);
84 			if (ret < 0)
85 				break;
86 		}
87 		if (!pkts_sent)
88 			break;
89 		total_sent += pkts_sent;
90 		/* reclaim as much as possible */
91 		reclaim_completed_tx(&txq->q);
92 	}
93 
94 	t4_os_unlock(&txq->txq_lock);
95 	return total_sent;
96 }
97 
98 uint16_t cxgbe_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
99 			 uint16_t nb_pkts)
100 {
101 	struct sge_eth_rxq *rxq = (struct sge_eth_rxq *)rx_queue;
102 	unsigned int work_done;
103 
104 	CXGBE_DEBUG_RX(adapter, "%s: rxq->rspq.cntxt_id = %u; nb_pkts = %d\n",
105 		       __func__, rxq->rspq.cntxt_id, nb_pkts);
106 
107 	if (cxgbe_poll(&rxq->rspq, rx_pkts, (unsigned int)nb_pkts, &work_done))
108 		dev_err(adapter, "error in cxgbe poll\n");
109 
110 	CXGBE_DEBUG_RX(adapter, "%s: work_done = %u\n", __func__, work_done);
111 	return work_done;
112 }
113 
114 void cxgbe_dev_info_get(struct rte_eth_dev *eth_dev,
115 			struct rte_eth_dev_info *device_info)
116 {
117 	struct port_info *pi = eth_dev->data->dev_private;
118 	struct adapter *adapter = pi->adapter;
119 	int max_queues = adapter->sge.max_ethqsets / adapter->params.nports;
120 
121 	static const struct rte_eth_desc_lim cxgbe_desc_lim = {
122 		.nb_max = CXGBE_MAX_RING_DESC_SIZE,
123 		.nb_min = CXGBE_MIN_RING_DESC_SIZE,
124 		.nb_align = 1,
125 	};
126 
127 	device_info->min_rx_bufsize = CXGBE_MIN_RX_BUFSIZE;
128 	device_info->max_rx_pktlen = CXGBE_MAX_RX_PKTLEN;
129 	device_info->max_rx_queues = max_queues;
130 	device_info->max_tx_queues = max_queues;
131 	device_info->max_mac_addrs = 1;
132 	/* XXX: For now we support one MAC/port */
133 	device_info->max_vfs = adapter->params.arch.vfcount;
134 	device_info->max_vmdq_pools = 0; /* XXX: For now no support for VMDQ */
135 
136 	device_info->rx_queue_offload_capa = 0UL;
137 	device_info->rx_offload_capa = CXGBE_RX_OFFLOADS;
138 
139 	device_info->tx_queue_offload_capa = 0UL;
140 	device_info->tx_offload_capa = CXGBE_TX_OFFLOADS;
141 
142 	device_info->reta_size = pi->rss_size;
143 	device_info->hash_key_size = CXGBE_DEFAULT_RSS_KEY_LEN;
144 	device_info->flow_type_rss_offloads = CXGBE_RSS_HF_ALL;
145 
146 	device_info->rx_desc_lim = cxgbe_desc_lim;
147 	device_info->tx_desc_lim = cxgbe_desc_lim;
148 	cxgbe_get_speed_caps(pi, &device_info->speed_capa);
149 }
150 
151 void cxgbe_dev_promiscuous_enable(struct rte_eth_dev *eth_dev)
152 {
153 	struct port_info *pi = eth_dev->data->dev_private;
154 	struct adapter *adapter = pi->adapter;
155 
156 	t4_set_rxmode(adapter, adapter->mbox, pi->viid, -1,
157 		      1, -1, 1, -1, false);
158 }
159 
160 void cxgbe_dev_promiscuous_disable(struct rte_eth_dev *eth_dev)
161 {
162 	struct port_info *pi = eth_dev->data->dev_private;
163 	struct adapter *adapter = pi->adapter;
164 
165 	t4_set_rxmode(adapter, adapter->mbox, pi->viid, -1,
166 		      0, -1, 1, -1, false);
167 }
168 
169 void cxgbe_dev_allmulticast_enable(struct rte_eth_dev *eth_dev)
170 {
171 	struct port_info *pi = eth_dev->data->dev_private;
172 	struct adapter *adapter = pi->adapter;
173 
174 	/* TODO: address filters ?? */
175 
176 	t4_set_rxmode(adapter, adapter->mbox, pi->viid, -1,
177 		      -1, 1, 1, -1, false);
178 }
179 
180 void cxgbe_dev_allmulticast_disable(struct rte_eth_dev *eth_dev)
181 {
182 	struct port_info *pi = eth_dev->data->dev_private;
183 	struct adapter *adapter = pi->adapter;
184 
185 	/* TODO: address filters ?? */
186 
187 	t4_set_rxmode(adapter, adapter->mbox, pi->viid, -1,
188 		      -1, 0, 1, -1, false);
189 }
190 
191 int cxgbe_dev_link_update(struct rte_eth_dev *eth_dev,
192 			  int wait_to_complete)
193 {
194 	struct port_info *pi = eth_dev->data->dev_private;
195 	struct adapter *adapter = pi->adapter;
196 	struct sge *s = &adapter->sge;
197 	struct rte_eth_link new_link = { 0 };
198 	unsigned int i, work_done, budget = 32;
199 	u8 old_link = pi->link_cfg.link_ok;
200 
201 	for (i = 0; i < CXGBE_LINK_STATUS_POLL_CNT; i++) {
202 		cxgbe_poll(&s->fw_evtq, NULL, budget, &work_done);
203 
204 		/* Exit if link status changed or always forced up */
205 		if (pi->link_cfg.link_ok != old_link ||
206 		    cxgbe_force_linkup(adapter))
207 			break;
208 
209 		if (!wait_to_complete)
210 			break;
211 
212 		rte_delay_ms(CXGBE_LINK_STATUS_POLL_MS);
213 	}
214 
215 	new_link.link_status = cxgbe_force_linkup(adapter) ?
216 			       ETH_LINK_UP : pi->link_cfg.link_ok;
217 	new_link.link_autoneg = pi->link_cfg.autoneg;
218 	new_link.link_duplex = ETH_LINK_FULL_DUPLEX;
219 	new_link.link_speed = pi->link_cfg.speed;
220 
221 	return rte_eth_linkstatus_set(eth_dev, &new_link);
222 }
223 
224 /**
225  * Set device link up.
226  */
227 int cxgbe_dev_set_link_up(struct rte_eth_dev *dev)
228 {
229 	struct port_info *pi = dev->data->dev_private;
230 	struct adapter *adapter = pi->adapter;
231 	unsigned int work_done, budget = 32;
232 	struct sge *s = &adapter->sge;
233 	int ret;
234 
235 	/* Flush all link events */
236 	cxgbe_poll(&s->fw_evtq, NULL, budget, &work_done);
237 
238 	/* If link already up, nothing to do */
239 	if (pi->link_cfg.link_ok)
240 		return 0;
241 
242 	ret = cxgbe_set_link_status(pi, true);
243 	if (ret)
244 		return ret;
245 
246 	cxgbe_dev_link_update(dev, 1);
247 	return 0;
248 }
249 
250 /**
251  * Set device link down.
252  */
253 int cxgbe_dev_set_link_down(struct rte_eth_dev *dev)
254 {
255 	struct port_info *pi = dev->data->dev_private;
256 	struct adapter *adapter = pi->adapter;
257 	unsigned int work_done, budget = 32;
258 	struct sge *s = &adapter->sge;
259 	int ret;
260 
261 	/* Flush all link events */
262 	cxgbe_poll(&s->fw_evtq, NULL, budget, &work_done);
263 
264 	/* If link already down, nothing to do */
265 	if (!pi->link_cfg.link_ok)
266 		return 0;
267 
268 	ret = cxgbe_set_link_status(pi, false);
269 	if (ret)
270 		return ret;
271 
272 	cxgbe_dev_link_update(dev, 0);
273 	return 0;
274 }
275 
276 int cxgbe_dev_mtu_set(struct rte_eth_dev *eth_dev, uint16_t mtu)
277 {
278 	struct port_info *pi = eth_dev->data->dev_private;
279 	struct adapter *adapter = pi->adapter;
280 	struct rte_eth_dev_info dev_info;
281 	int err;
282 	uint16_t new_mtu = mtu + RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN;
283 
284 	cxgbe_dev_info_get(eth_dev, &dev_info);
285 
286 	/* Must accommodate at least RTE_ETHER_MIN_MTU */
287 	if (new_mtu < RTE_ETHER_MIN_MTU || new_mtu > dev_info.max_rx_pktlen)
288 		return -EINVAL;
289 
290 	/* set to jumbo mode if needed */
291 	if (new_mtu > RTE_ETHER_MAX_LEN)
292 		eth_dev->data->dev_conf.rxmode.offloads |=
293 			DEV_RX_OFFLOAD_JUMBO_FRAME;
294 	else
295 		eth_dev->data->dev_conf.rxmode.offloads &=
296 			~DEV_RX_OFFLOAD_JUMBO_FRAME;
297 
298 	err = t4_set_rxmode(adapter, adapter->mbox, pi->viid, new_mtu, -1, -1,
299 			    -1, -1, true);
300 	if (!err)
301 		eth_dev->data->dev_conf.rxmode.max_rx_pkt_len = new_mtu;
302 
303 	return err;
304 }
305 
306 /*
307  * Stop device.
308  */
309 void cxgbe_dev_close(struct rte_eth_dev *eth_dev)
310 {
311 	struct port_info *pi = eth_dev->data->dev_private;
312 	struct adapter *adapter = pi->adapter;
313 
314 	CXGBE_FUNC_TRACE();
315 
316 	if (!(adapter->flags & FULL_INIT_DONE))
317 		return;
318 
319 	cxgbe_down(pi);
320 
321 	/*
322 	 *  We clear queues only if both tx and rx path of the port
323 	 *  have been disabled
324 	 */
325 	t4_sge_eth_clear_queues(pi);
326 }
327 
328 /* Start the device.
329  * It returns 0 on success.
330  */
331 int cxgbe_dev_start(struct rte_eth_dev *eth_dev)
332 {
333 	struct port_info *pi = eth_dev->data->dev_private;
334 	struct rte_eth_rxmode *rx_conf = &eth_dev->data->dev_conf.rxmode;
335 	struct adapter *adapter = pi->adapter;
336 	int err = 0, i;
337 
338 	CXGBE_FUNC_TRACE();
339 
340 	/*
341 	 * If we don't have a connection to the firmware there's nothing we
342 	 * can do.
343 	 */
344 	if (!(adapter->flags & FW_OK)) {
345 		err = -ENXIO;
346 		goto out;
347 	}
348 
349 	if (!(adapter->flags & FULL_INIT_DONE)) {
350 		err = cxgbe_up(adapter);
351 		if (err < 0)
352 			goto out;
353 	}
354 
355 	if (rx_conf->offloads & DEV_RX_OFFLOAD_SCATTER)
356 		eth_dev->data->scattered_rx = 1;
357 	else
358 		eth_dev->data->scattered_rx = 0;
359 
360 	cxgbe_enable_rx_queues(pi);
361 
362 	err = cxgbe_setup_rss(pi);
363 	if (err)
364 		goto out;
365 
366 	for (i = 0; i < pi->n_tx_qsets; i++) {
367 		err = cxgbe_dev_tx_queue_start(eth_dev, i);
368 		if (err)
369 			goto out;
370 	}
371 
372 	for (i = 0; i < pi->n_rx_qsets; i++) {
373 		err = cxgbe_dev_rx_queue_start(eth_dev, i);
374 		if (err)
375 			goto out;
376 	}
377 
378 	err = cxgbe_link_start(pi);
379 	if (err)
380 		goto out;
381 
382 out:
383 	return err;
384 }
385 
386 /*
387  * Stop device: disable rx and tx functions to allow for reconfiguring.
388  */
389 void cxgbe_dev_stop(struct rte_eth_dev *eth_dev)
390 {
391 	struct port_info *pi = eth_dev->data->dev_private;
392 	struct adapter *adapter = pi->adapter;
393 
394 	CXGBE_FUNC_TRACE();
395 
396 	if (!(adapter->flags & FULL_INIT_DONE))
397 		return;
398 
399 	cxgbe_down(pi);
400 
401 	/*
402 	 *  We clear queues only if both tx and rx path of the port
403 	 *  have been disabled
404 	 */
405 	t4_sge_eth_clear_queues(pi);
406 	eth_dev->data->scattered_rx = 0;
407 }
408 
409 int cxgbe_dev_configure(struct rte_eth_dev *eth_dev)
410 {
411 	struct port_info *pi = eth_dev->data->dev_private;
412 	struct adapter *adapter = pi->adapter;
413 	int err;
414 
415 	CXGBE_FUNC_TRACE();
416 
417 	if (!(adapter->flags & FW_QUEUE_BOUND)) {
418 		err = cxgbe_setup_sge_fwevtq(adapter);
419 		if (err)
420 			return err;
421 		adapter->flags |= FW_QUEUE_BOUND;
422 		if (is_pf4(adapter)) {
423 			err = cxgbe_setup_sge_ctrl_txq(adapter);
424 			if (err)
425 				return err;
426 		}
427 	}
428 
429 	err = cxgbe_cfg_queue_count(eth_dev);
430 	if (err)
431 		return err;
432 
433 	return 0;
434 }
435 
436 int cxgbe_dev_tx_queue_start(struct rte_eth_dev *eth_dev, uint16_t tx_queue_id)
437 {
438 	int ret;
439 	struct sge_eth_txq *txq = (struct sge_eth_txq *)
440 				  (eth_dev->data->tx_queues[tx_queue_id]);
441 
442 	dev_debug(NULL, "%s: tx_queue_id = %d\n", __func__, tx_queue_id);
443 
444 	ret = t4_sge_eth_txq_start(txq);
445 	if (ret == 0)
446 		eth_dev->data->tx_queue_state[tx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
447 
448 	return ret;
449 }
450 
451 int cxgbe_dev_tx_queue_stop(struct rte_eth_dev *eth_dev, uint16_t tx_queue_id)
452 {
453 	int ret;
454 	struct sge_eth_txq *txq = (struct sge_eth_txq *)
455 				  (eth_dev->data->tx_queues[tx_queue_id]);
456 
457 	dev_debug(NULL, "%s: tx_queue_id = %d\n", __func__, tx_queue_id);
458 
459 	ret = t4_sge_eth_txq_stop(txq);
460 	if (ret == 0)
461 		eth_dev->data->tx_queue_state[tx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED;
462 
463 	return ret;
464 }
465 
466 int cxgbe_dev_tx_queue_setup(struct rte_eth_dev *eth_dev,
467 			     uint16_t queue_idx, uint16_t nb_desc,
468 			     unsigned int socket_id,
469 			     const struct rte_eth_txconf *tx_conf __rte_unused)
470 {
471 	struct port_info *pi = eth_dev->data->dev_private;
472 	struct adapter *adapter = pi->adapter;
473 	struct sge *s = &adapter->sge;
474 	struct sge_eth_txq *txq = &s->ethtxq[pi->first_qset + queue_idx];
475 	int err = 0;
476 	unsigned int temp_nb_desc;
477 
478 	dev_debug(adapter, "%s: eth_dev->data->nb_tx_queues = %d; queue_idx = %d; nb_desc = %d; socket_id = %d; pi->first_qset = %u\n",
479 		  __func__, eth_dev->data->nb_tx_queues, queue_idx, nb_desc,
480 		  socket_id, pi->first_qset);
481 
482 	/*  Free up the existing queue  */
483 	if (eth_dev->data->tx_queues[queue_idx]) {
484 		cxgbe_dev_tx_queue_release(eth_dev->data->tx_queues[queue_idx]);
485 		eth_dev->data->tx_queues[queue_idx] = NULL;
486 	}
487 
488 	eth_dev->data->tx_queues[queue_idx] = (void *)txq;
489 
490 	/* Sanity Checking
491 	 *
492 	 * nb_desc should be > 1023 and <= CXGBE_MAX_RING_DESC_SIZE
493 	 */
494 	temp_nb_desc = nb_desc;
495 	if (nb_desc < CXGBE_MIN_RING_DESC_SIZE) {
496 		dev_warn(adapter, "%s: number of descriptors must be >= %d. Using default [%d]\n",
497 			 __func__, CXGBE_MIN_RING_DESC_SIZE,
498 			 CXGBE_DEFAULT_TX_DESC_SIZE);
499 		temp_nb_desc = CXGBE_DEFAULT_TX_DESC_SIZE;
500 	} else if (nb_desc > CXGBE_MAX_RING_DESC_SIZE) {
501 		dev_err(adapter, "%s: number of descriptors must be between %d and %d inclusive. Default [%d]\n",
502 			__func__, CXGBE_MIN_RING_DESC_SIZE,
503 			CXGBE_MAX_RING_DESC_SIZE, CXGBE_DEFAULT_TX_DESC_SIZE);
504 		return -(EINVAL);
505 	}
506 
507 	txq->q.size = temp_nb_desc;
508 
509 	err = t4_sge_alloc_eth_txq(adapter, txq, eth_dev, queue_idx,
510 				   s->fw_evtq.cntxt_id, socket_id);
511 
512 	dev_debug(adapter, "%s: txq->q.cntxt_id= %u txq->q.abs_id= %u err = %d\n",
513 		  __func__, txq->q.cntxt_id, txq->q.abs_id, err);
514 	return err;
515 }
516 
517 void cxgbe_dev_tx_queue_release(void *q)
518 {
519 	struct sge_eth_txq *txq = (struct sge_eth_txq *)q;
520 
521 	if (txq) {
522 		struct port_info *pi = (struct port_info *)
523 				       (txq->eth_dev->data->dev_private);
524 		struct adapter *adap = pi->adapter;
525 
526 		dev_debug(adapter, "%s: pi->port_id = %d; tx_queue_id = %d\n",
527 			  __func__, pi->port_id, txq->q.cntxt_id);
528 
529 		t4_sge_eth_txq_release(adap, txq);
530 	}
531 }
532 
533 int cxgbe_dev_rx_queue_start(struct rte_eth_dev *eth_dev, uint16_t rx_queue_id)
534 {
535 	int ret;
536 	struct port_info *pi = eth_dev->data->dev_private;
537 	struct adapter *adap = pi->adapter;
538 	struct sge_rspq *q;
539 
540 	dev_debug(adapter, "%s: pi->port_id = %d; rx_queue_id = %d\n",
541 		  __func__, pi->port_id, rx_queue_id);
542 
543 	q = eth_dev->data->rx_queues[rx_queue_id];
544 
545 	ret = t4_sge_eth_rxq_start(adap, q);
546 	if (ret == 0)
547 		eth_dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
548 
549 	return ret;
550 }
551 
552 int cxgbe_dev_rx_queue_stop(struct rte_eth_dev *eth_dev, uint16_t rx_queue_id)
553 {
554 	int ret;
555 	struct port_info *pi = eth_dev->data->dev_private;
556 	struct adapter *adap = pi->adapter;
557 	struct sge_rspq *q;
558 
559 	dev_debug(adapter, "%s: pi->port_id = %d; rx_queue_id = %d\n",
560 		  __func__, pi->port_id, rx_queue_id);
561 
562 	q = eth_dev->data->rx_queues[rx_queue_id];
563 	ret = t4_sge_eth_rxq_stop(adap, q);
564 	if (ret == 0)
565 		eth_dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED;
566 
567 	return ret;
568 }
569 
570 int cxgbe_dev_rx_queue_setup(struct rte_eth_dev *eth_dev,
571 			     uint16_t queue_idx, uint16_t nb_desc,
572 			     unsigned int socket_id,
573 			     const struct rte_eth_rxconf *rx_conf __rte_unused,
574 			     struct rte_mempool *mp)
575 {
576 	struct port_info *pi = eth_dev->data->dev_private;
577 	struct adapter *adapter = pi->adapter;
578 	struct sge *s = &adapter->sge;
579 	struct sge_eth_rxq *rxq = &s->ethrxq[pi->first_qset + queue_idx];
580 	int err = 0;
581 	int msi_idx = 0;
582 	unsigned int temp_nb_desc;
583 	struct rte_eth_dev_info dev_info;
584 	unsigned int pkt_len = eth_dev->data->dev_conf.rxmode.max_rx_pkt_len;
585 
586 	dev_debug(adapter, "%s: eth_dev->data->nb_rx_queues = %d; queue_idx = %d; nb_desc = %d; socket_id = %d; mp = %p\n",
587 		  __func__, eth_dev->data->nb_rx_queues, queue_idx, nb_desc,
588 		  socket_id, mp);
589 
590 	cxgbe_dev_info_get(eth_dev, &dev_info);
591 
592 	/* Must accommodate at least RTE_ETHER_MIN_MTU */
593 	if ((pkt_len < dev_info.min_rx_bufsize) ||
594 	    (pkt_len > dev_info.max_rx_pktlen)) {
595 		dev_err(adap, "%s: max pkt len must be > %d and <= %d\n",
596 			__func__, dev_info.min_rx_bufsize,
597 			dev_info.max_rx_pktlen);
598 		return -EINVAL;
599 	}
600 
601 	/*  Free up the existing queue  */
602 	if (eth_dev->data->rx_queues[queue_idx]) {
603 		cxgbe_dev_rx_queue_release(eth_dev->data->rx_queues[queue_idx]);
604 		eth_dev->data->rx_queues[queue_idx] = NULL;
605 	}
606 
607 	eth_dev->data->rx_queues[queue_idx] = (void *)rxq;
608 
609 	/* Sanity Checking
610 	 *
611 	 * nb_desc should be > 0 and <= CXGBE_MAX_RING_DESC_SIZE
612 	 */
613 	temp_nb_desc = nb_desc;
614 	if (nb_desc < CXGBE_MIN_RING_DESC_SIZE) {
615 		dev_warn(adapter, "%s: number of descriptors must be >= %d. Using default [%d]\n",
616 			 __func__, CXGBE_MIN_RING_DESC_SIZE,
617 			 CXGBE_DEFAULT_RX_DESC_SIZE);
618 		temp_nb_desc = CXGBE_DEFAULT_RX_DESC_SIZE;
619 	} else if (nb_desc > CXGBE_MAX_RING_DESC_SIZE) {
620 		dev_err(adapter, "%s: number of descriptors must be between %d and %d inclusive. Default [%d]\n",
621 			__func__, CXGBE_MIN_RING_DESC_SIZE,
622 			CXGBE_MAX_RING_DESC_SIZE, CXGBE_DEFAULT_RX_DESC_SIZE);
623 		return -(EINVAL);
624 	}
625 
626 	rxq->rspq.size = temp_nb_desc;
627 	if ((&rxq->fl) != NULL)
628 		rxq->fl.size = temp_nb_desc;
629 
630 	/* Set to jumbo mode if necessary */
631 	if (pkt_len > RTE_ETHER_MAX_LEN)
632 		eth_dev->data->dev_conf.rxmode.offloads |=
633 			DEV_RX_OFFLOAD_JUMBO_FRAME;
634 	else
635 		eth_dev->data->dev_conf.rxmode.offloads &=
636 			~DEV_RX_OFFLOAD_JUMBO_FRAME;
637 
638 	err = t4_sge_alloc_rxq(adapter, &rxq->rspq, false, eth_dev, msi_idx,
639 			       &rxq->fl, NULL,
640 			       is_pf4(adapter) ?
641 			       t4_get_tp_ch_map(adapter, pi->tx_chan) : 0, mp,
642 			       queue_idx, socket_id);
643 
644 	dev_debug(adapter, "%s: err = %d; port_id = %d; cntxt_id = %u; abs_id = %u\n",
645 		  __func__, err, pi->port_id, rxq->rspq.cntxt_id,
646 		  rxq->rspq.abs_id);
647 	return err;
648 }
649 
650 void cxgbe_dev_rx_queue_release(void *q)
651 {
652 	struct sge_eth_rxq *rxq = (struct sge_eth_rxq *)q;
653 	struct sge_rspq *rq = &rxq->rspq;
654 
655 	if (rq) {
656 		struct port_info *pi = (struct port_info *)
657 				       (rq->eth_dev->data->dev_private);
658 		struct adapter *adap = pi->adapter;
659 
660 		dev_debug(adapter, "%s: pi->port_id = %d; rx_queue_id = %d\n",
661 			  __func__, pi->port_id, rxq->rspq.cntxt_id);
662 
663 		t4_sge_eth_rxq_release(adap, rxq);
664 	}
665 }
666 
667 /*
668  * Get port statistics.
669  */
670 static int cxgbe_dev_stats_get(struct rte_eth_dev *eth_dev,
671 				struct rte_eth_stats *eth_stats)
672 {
673 	struct port_info *pi = eth_dev->data->dev_private;
674 	struct adapter *adapter = pi->adapter;
675 	struct sge *s = &adapter->sge;
676 	struct port_stats ps;
677 	unsigned int i;
678 
679 	cxgbe_stats_get(pi, &ps);
680 
681 	/* RX Stats */
682 	eth_stats->imissed  = ps.rx_ovflow0 + ps.rx_ovflow1 +
683 			      ps.rx_ovflow2 + ps.rx_ovflow3 +
684 			      ps.rx_trunc0 + ps.rx_trunc1 +
685 			      ps.rx_trunc2 + ps.rx_trunc3;
686 	eth_stats->ierrors  = ps.rx_symbol_err + ps.rx_fcs_err +
687 			      ps.rx_jabber + ps.rx_too_long + ps.rx_runt +
688 			      ps.rx_len_err;
689 
690 	/* TX Stats */
691 	eth_stats->opackets = ps.tx_frames;
692 	eth_stats->obytes   = ps.tx_octets;
693 	eth_stats->oerrors  = ps.tx_error_frames;
694 
695 	for (i = 0; i < pi->n_rx_qsets; i++) {
696 		struct sge_eth_rxq *rxq =
697 			&s->ethrxq[pi->first_qset + i];
698 
699 		eth_stats->q_ipackets[i] = rxq->stats.pkts;
700 		eth_stats->q_ibytes[i] = rxq->stats.rx_bytes;
701 		eth_stats->ipackets += eth_stats->q_ipackets[i];
702 		eth_stats->ibytes += eth_stats->q_ibytes[i];
703 	}
704 
705 	for (i = 0; i < pi->n_tx_qsets; i++) {
706 		struct sge_eth_txq *txq =
707 			&s->ethtxq[pi->first_qset + i];
708 
709 		eth_stats->q_opackets[i] = txq->stats.pkts;
710 		eth_stats->q_obytes[i] = txq->stats.tx_bytes;
711 	}
712 	return 0;
713 }
714 
715 /*
716  * Reset port statistics.
717  */
718 static void cxgbe_dev_stats_reset(struct rte_eth_dev *eth_dev)
719 {
720 	struct port_info *pi = eth_dev->data->dev_private;
721 	struct adapter *adapter = pi->adapter;
722 	struct sge *s = &adapter->sge;
723 	unsigned int i;
724 
725 	cxgbe_stats_reset(pi);
726 	for (i = 0; i < pi->n_rx_qsets; i++) {
727 		struct sge_eth_rxq *rxq =
728 			&s->ethrxq[pi->first_qset + i];
729 
730 		rxq->stats.pkts = 0;
731 		rxq->stats.rx_bytes = 0;
732 	}
733 	for (i = 0; i < pi->n_tx_qsets; i++) {
734 		struct sge_eth_txq *txq =
735 			&s->ethtxq[pi->first_qset + i];
736 
737 		txq->stats.pkts = 0;
738 		txq->stats.tx_bytes = 0;
739 		txq->stats.mapping_err = 0;
740 	}
741 }
742 
743 static int cxgbe_flow_ctrl_get(struct rte_eth_dev *eth_dev,
744 			       struct rte_eth_fc_conf *fc_conf)
745 {
746 	struct port_info *pi = eth_dev->data->dev_private;
747 	struct link_config *lc = &pi->link_cfg;
748 	int rx_pause, tx_pause;
749 
750 	fc_conf->autoneg = lc->fc & PAUSE_AUTONEG;
751 	rx_pause = lc->fc & PAUSE_RX;
752 	tx_pause = lc->fc & PAUSE_TX;
753 
754 	if (rx_pause && tx_pause)
755 		fc_conf->mode = RTE_FC_FULL;
756 	else if (rx_pause)
757 		fc_conf->mode = RTE_FC_RX_PAUSE;
758 	else if (tx_pause)
759 		fc_conf->mode = RTE_FC_TX_PAUSE;
760 	else
761 		fc_conf->mode = RTE_FC_NONE;
762 	return 0;
763 }
764 
765 static int cxgbe_flow_ctrl_set(struct rte_eth_dev *eth_dev,
766 			       struct rte_eth_fc_conf *fc_conf)
767 {
768 	struct port_info *pi = eth_dev->data->dev_private;
769 	struct adapter *adapter = pi->adapter;
770 	struct link_config *lc = &pi->link_cfg;
771 
772 	if (lc->pcaps & FW_PORT_CAP32_ANEG) {
773 		if (fc_conf->autoneg)
774 			lc->requested_fc |= PAUSE_AUTONEG;
775 		else
776 			lc->requested_fc &= ~PAUSE_AUTONEG;
777 	}
778 
779 	if (((fc_conf->mode & RTE_FC_FULL) == RTE_FC_FULL) ||
780 	    (fc_conf->mode & RTE_FC_RX_PAUSE))
781 		lc->requested_fc |= PAUSE_RX;
782 	else
783 		lc->requested_fc &= ~PAUSE_RX;
784 
785 	if (((fc_conf->mode & RTE_FC_FULL) == RTE_FC_FULL) ||
786 	    (fc_conf->mode & RTE_FC_TX_PAUSE))
787 		lc->requested_fc |= PAUSE_TX;
788 	else
789 		lc->requested_fc &= ~PAUSE_TX;
790 
791 	return t4_link_l1cfg(adapter, adapter->mbox, pi->tx_chan,
792 			     &pi->link_cfg);
793 }
794 
795 const uint32_t *
796 cxgbe_dev_supported_ptypes_get(struct rte_eth_dev *eth_dev)
797 {
798 	static const uint32_t ptypes[] = {
799 		RTE_PTYPE_L3_IPV4,
800 		RTE_PTYPE_L3_IPV6,
801 		RTE_PTYPE_UNKNOWN
802 	};
803 
804 	if (eth_dev->rx_pkt_burst == cxgbe_recv_pkts)
805 		return ptypes;
806 	return NULL;
807 }
808 
809 /* Update RSS hash configuration
810  */
811 static int cxgbe_dev_rss_hash_update(struct rte_eth_dev *dev,
812 				     struct rte_eth_rss_conf *rss_conf)
813 {
814 	struct port_info *pi = dev->data->dev_private;
815 	struct adapter *adapter = pi->adapter;
816 	int err;
817 
818 	err = cxgbe_write_rss_conf(pi, rss_conf->rss_hf);
819 	if (err)
820 		return err;
821 
822 	pi->rss_hf = rss_conf->rss_hf;
823 
824 	if (rss_conf->rss_key) {
825 		u32 key[10], mod_key[10];
826 		int i, j;
827 
828 		memcpy(key, rss_conf->rss_key, CXGBE_DEFAULT_RSS_KEY_LEN);
829 
830 		for (i = 9, j = 0; i >= 0; i--, j++)
831 			mod_key[j] = cpu_to_be32(key[i]);
832 
833 		t4_write_rss_key(adapter, mod_key, -1);
834 	}
835 
836 	return 0;
837 }
838 
839 /* Get RSS hash configuration
840  */
841 static int cxgbe_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
842 				       struct rte_eth_rss_conf *rss_conf)
843 {
844 	struct port_info *pi = dev->data->dev_private;
845 	struct adapter *adapter = pi->adapter;
846 	u64 rss_hf = 0;
847 	u64 flags = 0;
848 	int err;
849 
850 	err = t4_read_config_vi_rss(adapter, adapter->mbox, pi->viid,
851 				    &flags, NULL);
852 
853 	if (err)
854 		return err;
855 
856 	if (flags & F_FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN) {
857 		rss_hf |= CXGBE_RSS_HF_TCP_IPV6_MASK;
858 		if (flags & F_FW_RSS_VI_CONFIG_CMD_UDPEN)
859 			rss_hf |= CXGBE_RSS_HF_UDP_IPV6_MASK;
860 	}
861 
862 	if (flags & F_FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN)
863 		rss_hf |= CXGBE_RSS_HF_IPV6_MASK;
864 
865 	if (flags & F_FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN) {
866 		rss_hf |= ETH_RSS_NONFRAG_IPV4_TCP;
867 		if (flags & F_FW_RSS_VI_CONFIG_CMD_UDPEN)
868 			rss_hf |= ETH_RSS_NONFRAG_IPV4_UDP;
869 	}
870 
871 	if (flags & F_FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN)
872 		rss_hf |= CXGBE_RSS_HF_IPV4_MASK;
873 
874 	rss_conf->rss_hf = rss_hf;
875 
876 	if (rss_conf->rss_key) {
877 		u32 key[10], mod_key[10];
878 		int i, j;
879 
880 		t4_read_rss_key(adapter, key);
881 
882 		for (i = 9, j = 0; i >= 0; i--, j++)
883 			mod_key[j] = be32_to_cpu(key[i]);
884 
885 		memcpy(rss_conf->rss_key, mod_key, CXGBE_DEFAULT_RSS_KEY_LEN);
886 	}
887 
888 	return 0;
889 }
890 
891 static int cxgbe_get_eeprom_length(struct rte_eth_dev *dev)
892 {
893 	RTE_SET_USED(dev);
894 	return EEPROMSIZE;
895 }
896 
897 /**
898  * eeprom_ptov - translate a physical EEPROM address to virtual
899  * @phys_addr: the physical EEPROM address
900  * @fn: the PCI function number
901  * @sz: size of function-specific area
902  *
903  * Translate a physical EEPROM address to virtual.  The first 1K is
904  * accessed through virtual addresses starting at 31K, the rest is
905  * accessed through virtual addresses starting at 0.
906  *
907  * The mapping is as follows:
908  * [0..1K) -> [31K..32K)
909  * [1K..1K+A) -> [31K-A..31K)
910  * [1K+A..ES) -> [0..ES-A-1K)
911  *
912  * where A = @fn * @sz, and ES = EEPROM size.
913  */
914 static int eeprom_ptov(unsigned int phys_addr, unsigned int fn, unsigned int sz)
915 {
916 	fn *= sz;
917 	if (phys_addr < 1024)
918 		return phys_addr + (31 << 10);
919 	if (phys_addr < 1024 + fn)
920 		return fn + phys_addr - 1024;
921 	if (phys_addr < EEPROMSIZE)
922 		return phys_addr - 1024 - fn;
923 	if (phys_addr < EEPROMVSIZE)
924 		return phys_addr - 1024;
925 	return -EINVAL;
926 }
927 
928 /* The next two routines implement eeprom read/write from physical addresses.
929  */
930 static int eeprom_rd_phys(struct adapter *adap, unsigned int phys_addr, u32 *v)
931 {
932 	int vaddr = eeprom_ptov(phys_addr, adap->pf, EEPROMPFSIZE);
933 
934 	if (vaddr >= 0)
935 		vaddr = t4_seeprom_read(adap, vaddr, v);
936 	return vaddr < 0 ? vaddr : 0;
937 }
938 
939 static int eeprom_wr_phys(struct adapter *adap, unsigned int phys_addr, u32 v)
940 {
941 	int vaddr = eeprom_ptov(phys_addr, adap->pf, EEPROMPFSIZE);
942 
943 	if (vaddr >= 0)
944 		vaddr = t4_seeprom_write(adap, vaddr, v);
945 	return vaddr < 0 ? vaddr : 0;
946 }
947 
948 #define EEPROM_MAGIC 0x38E2F10C
949 
950 static int cxgbe_get_eeprom(struct rte_eth_dev *dev,
951 			    struct rte_dev_eeprom_info *e)
952 {
953 	struct port_info *pi = dev->data->dev_private;
954 	struct adapter *adapter = pi->adapter;
955 	u32 i, err = 0;
956 	u8 *buf = rte_zmalloc(NULL, EEPROMSIZE, 0);
957 
958 	if (!buf)
959 		return -ENOMEM;
960 
961 	e->magic = EEPROM_MAGIC;
962 	for (i = e->offset & ~3; !err && i < e->offset + e->length; i += 4)
963 		err = eeprom_rd_phys(adapter, i, (u32 *)&buf[i]);
964 
965 	if (!err)
966 		rte_memcpy(e->data, buf + e->offset, e->length);
967 	rte_free(buf);
968 	return err;
969 }
970 
971 static int cxgbe_set_eeprom(struct rte_eth_dev *dev,
972 			    struct rte_dev_eeprom_info *eeprom)
973 {
974 	struct port_info *pi = dev->data->dev_private;
975 	struct adapter *adapter = pi->adapter;
976 	u8 *buf;
977 	int err = 0;
978 	u32 aligned_offset, aligned_len, *p;
979 
980 	if (eeprom->magic != EEPROM_MAGIC)
981 		return -EINVAL;
982 
983 	aligned_offset = eeprom->offset & ~3;
984 	aligned_len = (eeprom->length + (eeprom->offset & 3) + 3) & ~3;
985 
986 	if (adapter->pf > 0) {
987 		u32 start = 1024 + adapter->pf * EEPROMPFSIZE;
988 
989 		if (aligned_offset < start ||
990 		    aligned_offset + aligned_len > start + EEPROMPFSIZE)
991 			return -EPERM;
992 	}
993 
994 	if (aligned_offset != eeprom->offset || aligned_len != eeprom->length) {
995 		/* RMW possibly needed for first or last words.
996 		 */
997 		buf = rte_zmalloc(NULL, aligned_len, 0);
998 		if (!buf)
999 			return -ENOMEM;
1000 		err = eeprom_rd_phys(adapter, aligned_offset, (u32 *)buf);
1001 		if (!err && aligned_len > 4)
1002 			err = eeprom_rd_phys(adapter,
1003 					     aligned_offset + aligned_len - 4,
1004 					     (u32 *)&buf[aligned_len - 4]);
1005 		if (err)
1006 			goto out;
1007 		rte_memcpy(buf + (eeprom->offset & 3), eeprom->data,
1008 			   eeprom->length);
1009 	} else {
1010 		buf = eeprom->data;
1011 	}
1012 
1013 	err = t4_seeprom_wp(adapter, false);
1014 	if (err)
1015 		goto out;
1016 
1017 	for (p = (u32 *)buf; !err && aligned_len; aligned_len -= 4, p++) {
1018 		err = eeprom_wr_phys(adapter, aligned_offset, *p);
1019 		aligned_offset += 4;
1020 	}
1021 
1022 	if (!err)
1023 		err = t4_seeprom_wp(adapter, true);
1024 out:
1025 	if (buf != eeprom->data)
1026 		rte_free(buf);
1027 	return err;
1028 }
1029 
1030 static int cxgbe_get_regs_len(struct rte_eth_dev *eth_dev)
1031 {
1032 	struct port_info *pi = eth_dev->data->dev_private;
1033 	struct adapter *adapter = pi->adapter;
1034 
1035 	return t4_get_regs_len(adapter) / sizeof(uint32_t);
1036 }
1037 
1038 static int cxgbe_get_regs(struct rte_eth_dev *eth_dev,
1039 			  struct rte_dev_reg_info *regs)
1040 {
1041 	struct port_info *pi = eth_dev->data->dev_private;
1042 	struct adapter *adapter = pi->adapter;
1043 
1044 	regs->version = CHELSIO_CHIP_VERSION(adapter->params.chip) |
1045 		(CHELSIO_CHIP_RELEASE(adapter->params.chip) << 10) |
1046 		(1 << 16);
1047 
1048 	if (regs->data == NULL) {
1049 		regs->length = cxgbe_get_regs_len(eth_dev);
1050 		regs->width = sizeof(uint32_t);
1051 
1052 		return 0;
1053 	}
1054 
1055 	t4_get_regs(adapter, regs->data, (regs->length * sizeof(uint32_t)));
1056 
1057 	return 0;
1058 }
1059 
1060 int cxgbe_mac_addr_set(struct rte_eth_dev *dev, struct rte_ether_addr *addr)
1061 {
1062 	struct port_info *pi = dev->data->dev_private;
1063 	int ret;
1064 
1065 	ret = cxgbe_mpstcam_modify(pi, (int)pi->xact_addr_filt, (u8 *)addr);
1066 	if (ret < 0) {
1067 		dev_err(adapter, "failed to set mac addr; err = %d\n",
1068 			ret);
1069 		return ret;
1070 	}
1071 	pi->xact_addr_filt = ret;
1072 	return 0;
1073 }
1074 
1075 static const struct eth_dev_ops cxgbe_eth_dev_ops = {
1076 	.dev_start		= cxgbe_dev_start,
1077 	.dev_stop		= cxgbe_dev_stop,
1078 	.dev_close		= cxgbe_dev_close,
1079 	.promiscuous_enable	= cxgbe_dev_promiscuous_enable,
1080 	.promiscuous_disable	= cxgbe_dev_promiscuous_disable,
1081 	.allmulticast_enable	= cxgbe_dev_allmulticast_enable,
1082 	.allmulticast_disable	= cxgbe_dev_allmulticast_disable,
1083 	.dev_configure		= cxgbe_dev_configure,
1084 	.dev_infos_get		= cxgbe_dev_info_get,
1085 	.dev_supported_ptypes_get = cxgbe_dev_supported_ptypes_get,
1086 	.link_update		= cxgbe_dev_link_update,
1087 	.dev_set_link_up        = cxgbe_dev_set_link_up,
1088 	.dev_set_link_down      = cxgbe_dev_set_link_down,
1089 	.mtu_set		= cxgbe_dev_mtu_set,
1090 	.tx_queue_setup         = cxgbe_dev_tx_queue_setup,
1091 	.tx_queue_start		= cxgbe_dev_tx_queue_start,
1092 	.tx_queue_stop		= cxgbe_dev_tx_queue_stop,
1093 	.tx_queue_release	= cxgbe_dev_tx_queue_release,
1094 	.rx_queue_setup         = cxgbe_dev_rx_queue_setup,
1095 	.rx_queue_start		= cxgbe_dev_rx_queue_start,
1096 	.rx_queue_stop		= cxgbe_dev_rx_queue_stop,
1097 	.rx_queue_release	= cxgbe_dev_rx_queue_release,
1098 	.filter_ctrl            = cxgbe_dev_filter_ctrl,
1099 	.stats_get		= cxgbe_dev_stats_get,
1100 	.stats_reset		= cxgbe_dev_stats_reset,
1101 	.flow_ctrl_get		= cxgbe_flow_ctrl_get,
1102 	.flow_ctrl_set		= cxgbe_flow_ctrl_set,
1103 	.get_eeprom_length	= cxgbe_get_eeprom_length,
1104 	.get_eeprom		= cxgbe_get_eeprom,
1105 	.set_eeprom		= cxgbe_set_eeprom,
1106 	.get_reg		= cxgbe_get_regs,
1107 	.rss_hash_update	= cxgbe_dev_rss_hash_update,
1108 	.rss_hash_conf_get	= cxgbe_dev_rss_hash_conf_get,
1109 	.mac_addr_set		= cxgbe_mac_addr_set,
1110 };
1111 
1112 /*
1113  * Initialize driver
1114  * It returns 0 on success.
1115  */
1116 static int eth_cxgbe_dev_init(struct rte_eth_dev *eth_dev)
1117 {
1118 	struct rte_pci_device *pci_dev;
1119 	struct port_info *pi = eth_dev->data->dev_private;
1120 	struct adapter *adapter = NULL;
1121 	char name[RTE_ETH_NAME_MAX_LEN];
1122 	int err = 0;
1123 
1124 	CXGBE_FUNC_TRACE();
1125 
1126 	eth_dev->dev_ops = &cxgbe_eth_dev_ops;
1127 	eth_dev->rx_pkt_burst = &cxgbe_recv_pkts;
1128 	eth_dev->tx_pkt_burst = &cxgbe_xmit_pkts;
1129 	pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
1130 
1131 	/* for secondary processes, we attach to ethdevs allocated by primary
1132 	 * and do minimal initialization.
1133 	 */
1134 	if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
1135 		int i;
1136 
1137 		for (i = 1; i < MAX_NPORTS; i++) {
1138 			struct rte_eth_dev *rest_eth_dev;
1139 			char namei[RTE_ETH_NAME_MAX_LEN];
1140 
1141 			snprintf(namei, sizeof(namei), "%s_%d",
1142 				 pci_dev->device.name, i);
1143 			rest_eth_dev = rte_eth_dev_attach_secondary(namei);
1144 			if (rest_eth_dev) {
1145 				rest_eth_dev->device = &pci_dev->device;
1146 				rest_eth_dev->dev_ops =
1147 					eth_dev->dev_ops;
1148 				rest_eth_dev->rx_pkt_burst =
1149 					eth_dev->rx_pkt_burst;
1150 				rest_eth_dev->tx_pkt_burst =
1151 					eth_dev->tx_pkt_burst;
1152 				rte_eth_dev_probing_finish(rest_eth_dev);
1153 			}
1154 		}
1155 		return 0;
1156 	}
1157 
1158 	snprintf(name, sizeof(name), "cxgbeadapter%d", eth_dev->data->port_id);
1159 	adapter = rte_zmalloc(name, sizeof(*adapter), 0);
1160 	if (!adapter)
1161 		return -1;
1162 
1163 	adapter->use_unpacked_mode = 1;
1164 	adapter->regs = (void *)pci_dev->mem_resource[0].addr;
1165 	if (!adapter->regs) {
1166 		dev_err(adapter, "%s: cannot map device registers\n", __func__);
1167 		err = -ENOMEM;
1168 		goto out_free_adapter;
1169 	}
1170 	adapter->pdev = pci_dev;
1171 	adapter->eth_dev = eth_dev;
1172 	pi->adapter = adapter;
1173 
1174 	err = cxgbe_probe(adapter);
1175 	if (err) {
1176 		dev_err(adapter, "%s: cxgbe probe failed with err %d\n",
1177 			__func__, err);
1178 		goto out_free_adapter;
1179 	}
1180 
1181 	return 0;
1182 
1183 out_free_adapter:
1184 	rte_free(adapter);
1185 	return err;
1186 }
1187 
1188 static int eth_cxgbe_dev_uninit(struct rte_eth_dev *eth_dev)
1189 {
1190 	struct port_info *pi = eth_dev->data->dev_private;
1191 	struct adapter *adap = pi->adapter;
1192 
1193 	/* Free up other ports and all resources */
1194 	cxgbe_close(adap);
1195 	return 0;
1196 }
1197 
1198 static int eth_cxgbe_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
1199 	struct rte_pci_device *pci_dev)
1200 {
1201 	return rte_eth_dev_pci_generic_probe(pci_dev,
1202 		sizeof(struct port_info), eth_cxgbe_dev_init);
1203 }
1204 
1205 static int eth_cxgbe_pci_remove(struct rte_pci_device *pci_dev)
1206 {
1207 	return rte_eth_dev_pci_generic_remove(pci_dev, eth_cxgbe_dev_uninit);
1208 }
1209 
1210 static struct rte_pci_driver rte_cxgbe_pmd = {
1211 	.id_table = cxgb4_pci_tbl,
1212 	.drv_flags = RTE_PCI_DRV_NEED_MAPPING,
1213 	.probe = eth_cxgbe_pci_probe,
1214 	.remove = eth_cxgbe_pci_remove,
1215 };
1216 
1217 RTE_PMD_REGISTER_PCI(net_cxgbe, rte_cxgbe_pmd);
1218 RTE_PMD_REGISTER_PCI_TABLE(net_cxgbe, cxgb4_pci_tbl);
1219 RTE_PMD_REGISTER_KMOD_DEP(net_cxgbe, "* igb_uio | uio_pci_generic | vfio-pci");
1220 RTE_PMD_REGISTER_PARAM_STRING(net_cxgbe,
1221 			      CXGBE_DEVARG_KEEP_OVLAN "=<0|1> "
1222 			      CXGBE_DEVARG_FORCE_LINK_UP "=<0|1> ");
1223 
1224 RTE_INIT(cxgbe_init_log)
1225 {
1226 	cxgbe_logtype = rte_log_register("pmd.net.cxgbe");
1227 	if (cxgbe_logtype >= 0)
1228 		rte_log_set_level(cxgbe_logtype, RTE_LOG_NOTICE);
1229 }
1230