summaryrefslogtreecommitdiff
path: root/drivers/net/ldpaa_eth/ldpaa_eth.c
blob: cfeb45f048ea542752dffdc2ed404be352cc70f2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
/*
 * Copyright (C) 2014 Freescale Semiconductor
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <asm/io.h>
#include <asm/types.h>
#include <malloc.h>
#include <net.h>
#include <hwconfig.h>
#include <phy.h>
#include <linux/compat.h>

#include "ldpaa_eth.h"

#undef CONFIG_PHYLIB
static int init_phy(struct eth_device *dev)
{
	/*TODO for external PHY */

	return 0;
}

static void ldpaa_eth_rx(struct ldpaa_eth_priv *priv,
			 const struct dpaa_fd *fd)
{
	u64 fd_addr;
	uint16_t fd_offset;
	uint32_t fd_length;
	struct ldpaa_fas *fas;
	uint32_t status, err;
	u32 timeo = (CONFIG_SYS_HZ * 2) / 1000;
	u32 time_start;
	struct qbman_release_desc releasedesc;
	struct qbman_swp *swp = dflt_dpio->sw_portal;

	fd_addr = ldpaa_fd_get_addr(fd);
	fd_offset = ldpaa_fd_get_offset(fd);
	fd_length = ldpaa_fd_get_len(fd);

	debug("Rx frame:data addr=0x%p size=0x%x\n", (u64 *)fd_addr, fd_length);

	if (fd->simple.frc & LDPAA_FD_FRC_FASV) {
		/* Read the frame annotation status word and check for errors */
		fas = (struct ldpaa_fas *)
				((uint8_t *)(fd_addr) +
				priv->buf_layout.private_data_size);
		status = le32_to_cpu(fas->status);
		if (status & LDPAA_ETH_RX_ERR_MASK) {
			printf("Rx frame error(s): 0x%08x\n",
			       status & LDPAA_ETH_RX_ERR_MASK);
			goto error;
		} else if (status & LDPAA_ETH_RX_UNSUPP_MASK) {
			printf("Unsupported feature in bitmask: 0x%08x\n",
			       status & LDPAA_ETH_RX_UNSUPP_MASK);
			goto error;
		}
	}

	debug("Rx frame: To Upper layer\n");
	net_process_received_packet((uint8_t *)(fd_addr) + fd_offset,
				    fd_length);

error:
	flush_dcache_range(fd_addr, fd_addr + LDPAA_ETH_RX_BUFFER_SIZE);
	qbman_release_desc_clear(&releasedesc);
	qbman_release_desc_set_bpid(&releasedesc, dflt_dpbp->dpbp_attr.bpid);
	time_start = get_timer(0);
	do {
		/* Release buffer into the QBMAN */
		err = qbman_swp_release(swp, &releasedesc, &fd_addr, 1);
	} while (get_timer(time_start) < timeo && err == -EBUSY);

	if (err == -EBUSY)
		printf("Rx frame: QBMAN buffer release fails\n");

	return;
}

static int ldpaa_eth_pull_dequeue_rx(struct eth_device *dev)
{
	struct ldpaa_eth_priv *priv = (struct ldpaa_eth_priv *)dev->priv;
	const struct ldpaa_dq *dq;
	const struct dpaa_fd *fd;
	int i = 5, err = 0, status;
	u32 timeo = (CONFIG_SYS_HZ * 2) / 1000;
	u32 time_start;
	static struct qbman_pull_desc pulldesc;
	struct qbman_swp *swp = dflt_dpio->sw_portal;

	while (--i) {
		qbman_pull_desc_clear(&pulldesc);
		qbman_pull_desc_set_numframes(&pulldesc, 1);
		qbman_pull_desc_set_fq(&pulldesc, priv->rx_dflt_fqid);

		err = qbman_swp_pull(swp, &pulldesc);
		if (err < 0) {
			printf("Dequeue frames error:0x%08x\n", err);
			continue;
		}

		time_start = get_timer(0);

		 do {
			dq = qbman_swp_dqrr_next(swp);
		} while (get_timer(time_start) < timeo && !dq);

		if (dq) {
			/* Check for valid frame. If not sent a consume
			 * confirmation to QBMAN otherwise give it to NADK
			 * application and then send consume confirmation to
			 * QBMAN.
			 */
			status = (uint8_t)ldpaa_dq_flags(dq);
			if ((status & LDPAA_DQ_STAT_VALIDFRAME) == 0) {
				debug("Dequeue RX frames:");
				debug("No frame delivered\n");

				qbman_swp_dqrr_consume(swp, dq);
				continue;
			}

			fd = ldpaa_dq_fd(dq);

			/* Obtain FD and process it */
			ldpaa_eth_rx(priv, fd);
			qbman_swp_dqrr_consume(swp, dq);
			break;
		} else {
			err = -ENODATA;
			debug("No DQRR entries\n");
			break;
		}
	}

	return err;
}

static int ldpaa_eth_tx(struct eth_device *net_dev, void *buf, int len)
{
	struct ldpaa_eth_priv *priv = (struct ldpaa_eth_priv *)net_dev->priv;
	struct dpaa_fd fd;
	u64 buffer_start;
	int data_offset, err;
	u32 timeo = (CONFIG_SYS_HZ * 10) / 1000;
	u32 time_start;
	struct qbman_swp *swp = dflt_dpio->sw_portal;
	struct qbman_eq_desc ed;
	struct qbman_release_desc releasedesc;

	/* Setup the FD fields */
	memset(&fd, 0, sizeof(fd));

	data_offset = priv->tx_data_offset;

	do {
		err = qbman_swp_acquire(dflt_dpio->sw_portal,
					dflt_dpbp->dpbp_attr.bpid,
					&buffer_start, 1);
	} while (err == -EBUSY);

	if (err < 0) {
		printf("qbman_swp_acquire() failed\n");
		return -ENOMEM;
	}

	debug("TX data: malloc buffer start=0x%p\n", (u64 *)buffer_start);

	memcpy(((uint8_t *)(buffer_start) + data_offset), buf, len);

	flush_dcache_range(buffer_start, buffer_start +
					LDPAA_ETH_RX_BUFFER_SIZE);

	ldpaa_fd_set_addr(&fd, (u64)buffer_start);
	ldpaa_fd_set_offset(&fd, (uint16_t)(data_offset));
	ldpaa_fd_set_bpid(&fd, dflt_dpbp->dpbp_attr.bpid);
	ldpaa_fd_set_len(&fd, len);

	fd.simple.ctrl = LDPAA_FD_CTRL_ASAL | LDPAA_FD_CTRL_PTA |
				LDPAA_FD_CTRL_PTV1;

	qbman_eq_desc_clear(&ed);
	qbman_eq_desc_set_no_orp(&ed, 0);
	qbman_eq_desc_set_qd(&ed, priv->tx_qdid, priv->tx_flow_id, 0);

	time_start = get_timer(0);

	while (get_timer(time_start) < timeo) {
		err = qbman_swp_enqueue(swp, &ed,
				(const struct qbman_fd *)(&fd));
		if (err != -EBUSY)
			break;
	}

	if (err < 0) {
		printf("error enqueueing Tx frame\n");
		goto error;
	}

	return err;

error:
	qbman_release_desc_clear(&releasedesc);
	qbman_release_desc_set_bpid(&releasedesc, dflt_dpbp->dpbp_attr.bpid);
	time_start = get_timer(0);
	do {
		/* Release buffer into the QBMAN */
		err = qbman_swp_release(swp, &releasedesc, &buffer_start, 1);
	} while (get_timer(time_start) < timeo && err == -EBUSY);

	if (err == -EBUSY)
		printf("TX data: QBMAN buffer release fails\n");

	return err;
}

static int ldpaa_eth_open(struct eth_device *net_dev, bd_t *bd)
{
	struct ldpaa_eth_priv *priv = (struct ldpaa_eth_priv *)net_dev->priv;
	struct dpni_queue_attr rx_queue_attr;
	int err;

	if (net_dev->state == ETH_STATE_ACTIVE)
		return 0;

	/* DPNI initialization */
	err = ldpaa_dpni_setup(priv);
	if (err < 0)
		goto err_dpni_setup;

	err = ldpaa_dpbp_setup();
	if (err < 0)
		goto err_dpbp_setup;

	/* DPNI binding DPBP */
	err = ldpaa_dpni_bind(priv);
	if (err)
		goto err_bind;

	err = dpni_add_mac_addr(dflt_mc_io, MC_CMD_NO_FLAGS,
				priv->dpni_handle, net_dev->enetaddr);
	if (err) {
		printf("dpni_add_mac_addr() failed\n");
		return err;
	}

#ifdef CONFIG_PHYLIB
	/* TODO Check this path */
	err = phy_startup(priv->phydev);
	if (err) {
		printf("%s: Could not initialize\n", priv->phydev->dev->name);
		return err;
	}
#else
	priv->phydev->speed = SPEED_1000;
	priv->phydev->link = 1;
	priv->phydev->duplex = DUPLEX_FULL;
#endif

	err = dpni_enable(dflt_mc_io, MC_CMD_NO_FLAGS, priv->dpni_handle);
	if (err < 0) {
		printf("dpni_enable() failed\n");
		return err;
	}

	/* TODO: support multiple Rx flows */
	err = dpni_get_rx_flow(dflt_mc_io, MC_CMD_NO_FLAGS, priv->dpni_handle,
			       0, 0, &rx_queue_attr);
	if (err) {
		printf("dpni_get_rx_flow() failed\n");
		goto err_rx_flow;
	}

	priv->rx_dflt_fqid = rx_queue_attr.fqid;

	err = dpni_get_qdid(dflt_mc_io, MC_CMD_NO_FLAGS, priv->dpni_handle,
			    &priv->tx_qdid);
	if (err) {
		printf("dpni_get_qdid() failed\n");
		goto err_qdid;
	}

	if (!priv->phydev->link)
		printf("%s: No link.\n", priv->phydev->dev->name);

	return priv->phydev->link ? 0 : -1;

err_qdid:
err_rx_flow:
	dpni_disable(dflt_mc_io, MC_CMD_NO_FLAGS, priv->dpni_handle);
err_bind:
	ldpaa_dpbp_free();
err_dpbp_setup:
	dpni_close(dflt_mc_io, MC_CMD_NO_FLAGS, priv->dpni_handle);
err_dpni_setup:
	return err;
}

static void ldpaa_eth_stop(struct eth_device *net_dev)
{
	struct ldpaa_eth_priv *priv = (struct ldpaa_eth_priv *)net_dev->priv;
	int err = 0;

	if ((net_dev->state == ETH_STATE_PASSIVE) ||
	    (net_dev->state == ETH_STATE_INIT))
		return;
	/* Stop Tx and Rx traffic */
	err = dpni_disable(dflt_mc_io, MC_CMD_NO_FLAGS, priv->dpni_handle);
	if (err < 0)
		printf("dpni_disable() failed\n");

#ifdef CONFIG_PHYLIB
	phy_shutdown(priv->phydev);
#endif

	ldpaa_dpbp_free();
	dpni_reset(dflt_mc_io, MC_CMD_NO_FLAGS, priv->dpni_handle);
	dpni_close(dflt_mc_io, MC_CMD_NO_FLAGS, priv->dpni_handle);
}

static void ldpaa_dpbp_drain_cnt(int count)
{
	uint64_t buf_array[7];
	void *addr;
	int ret, i;

	BUG_ON(count > 7);

	do {
		ret = qbman_swp_acquire(dflt_dpio->sw_portal,
					dflt_dpbp->dpbp_attr.bpid,
					buf_array, count);
		if (ret < 0) {
			printf("qbman_swp_acquire() failed\n");
			return;
		}
		for (i = 0; i < ret; i++) {
			addr = (void *)buf_array[i];
			debug("Free: buffer addr =0x%p\n", addr);
			free(addr);
		}
	} while (ret);
}

static void ldpaa_dpbp_drain(void)
{
	int i;
	for (i = 0; i < LDPAA_ETH_NUM_BUFS; i += 7)
		ldpaa_dpbp_drain_cnt(7);
}

static int ldpaa_bp_add_7(uint16_t bpid)
{
	uint64_t buf_array[7];
	u8 *addr;
	int i;
	struct qbman_release_desc rd;

	for (i = 0; i < 7; i++) {
		addr = memalign(L1_CACHE_BYTES, LDPAA_ETH_RX_BUFFER_SIZE);
		if (!addr) {
			printf("addr allocation failed\n");
			goto err_alloc;
		}
		memset(addr, 0x00, LDPAA_ETH_RX_BUFFER_SIZE);
		flush_dcache_range((u64)addr,
				   (u64)(addr + LDPAA_ETH_RX_BUFFER_SIZE));

		buf_array[i] = (uint64_t)addr;
		debug("Release: buffer addr =0x%p\n", addr);
	}

release_bufs:
	/* In case the portal is busy, retry until successful.
	 * This function is guaranteed to succeed in a reasonable amount
	 * of time.
	 */

	do {
		mdelay(1);
		qbman_release_desc_clear(&rd);
		qbman_release_desc_set_bpid(&rd, bpid);
	} while (qbman_swp_release(dflt_dpio->sw_portal, &rd, buf_array, i));

	return i;

err_alloc:
	if (i)
		goto release_bufs;

	return 0;
}

static int ldpaa_dpbp_seed(uint16_t bpid)
{
	int i;
	int count;

	for (i = 0; i < LDPAA_ETH_NUM_BUFS; i += 7) {
		count = ldpaa_bp_add_7(bpid);
		if (count < 7)
			printf("Buffer Seed= %d\n", count);
	}

	return 0;
}

static int ldpaa_dpbp_setup(void)
{
	int err;

	err = dpbp_open(dflt_mc_io, MC_CMD_NO_FLAGS, dflt_dpbp->dpbp_attr.id,
			&dflt_dpbp->dpbp_handle);
	if (err) {
		printf("dpbp_open() failed\n");
		goto err_open;
	}

	err = dpbp_enable(dflt_mc_io, MC_CMD_NO_FLAGS, dflt_dpbp->dpbp_handle);
	if (err) {
		printf("dpbp_enable() failed\n");
		goto err_enable;
	}

	err = dpbp_get_attributes(dflt_mc_io, MC_CMD_NO_FLAGS,
				  dflt_dpbp->dpbp_handle,
				  &dflt_dpbp->dpbp_attr);
	if (err) {
		printf("dpbp_get_attributes() failed\n");
		goto err_get_attr;
	}

	err = ldpaa_dpbp_seed(dflt_dpbp->dpbp_attr.bpid);
	if (err) {
		printf("Buffer seeding failed for DPBP %d (bpid=%d)\n",
		       dflt_dpbp->dpbp_attr.id, dflt_dpbp->dpbp_attr.bpid);
		goto err_seed;
	}

	return 0;

err_seed:
err_get_attr:
	dpbp_disable(dflt_mc_io, MC_CMD_NO_FLAGS, dflt_dpbp->dpbp_handle);
err_enable:
	dpbp_close(dflt_mc_io, MC_CMD_NO_FLAGS, dflt_dpbp->dpbp_handle);
err_open:
	return err;
}

static void ldpaa_dpbp_free(void)
{
	ldpaa_dpbp_drain();
	dpbp_disable(dflt_mc_io, MC_CMD_NO_FLAGS, dflt_dpbp->dpbp_handle);
	dpbp_reset(dflt_mc_io, MC_CMD_NO_FLAGS, dflt_dpbp->dpbp_handle);
	dpbp_close(dflt_mc_io, MC_CMD_NO_FLAGS, dflt_dpbp->dpbp_handle);
}

static int ldpaa_dpni_setup(struct ldpaa_eth_priv *priv)
{
	int err;

	/* and get a handle for the DPNI this interface is associate with */
	err = dpni_open(dflt_mc_io, MC_CMD_NO_FLAGS, priv->dpni_id,
			&priv->dpni_handle);
	if (err) {
		printf("dpni_open() failed\n");
		goto err_open;
	}

	err = dpni_get_attributes(dflt_mc_io, MC_CMD_NO_FLAGS,
				  priv->dpni_handle, &priv->dpni_attrs);
	if (err) {
		printf("dpni_get_attributes() failed (err=%d)\n", err);
		goto err_get_attr;
	}

	/* Configure our buffers' layout */
	priv->buf_layout.options = DPNI_BUF_LAYOUT_OPT_PARSER_RESULT |
				   DPNI_BUF_LAYOUT_OPT_FRAME_STATUS |
				   DPNI_BUF_LAYOUT_OPT_PRIVATE_DATA_SIZE;
	priv->buf_layout.pass_parser_result = true;
	priv->buf_layout.pass_frame_status = true;
	priv->buf_layout.private_data_size = LDPAA_ETH_SWA_SIZE;
	/* ...rx, ... */
	err = dpni_set_rx_buffer_layout(dflt_mc_io, MC_CMD_NO_FLAGS,
					priv->dpni_handle, &priv->buf_layout);
	if (err) {
		printf("dpni_set_rx_buffer_layout() failed");
		goto err_buf_layout;
	}

	/* ... tx, ... */
	priv->buf_layout.options &= ~DPNI_BUF_LAYOUT_OPT_PARSER_RESULT;
	err = dpni_set_tx_buffer_layout(dflt_mc_io, MC_CMD_NO_FLAGS,
					priv->dpni_handle, &priv->buf_layout);
	if (err) {
		printf("dpni_set_tx_buffer_layout() failed");
		goto err_buf_layout;
	}

	/* ... tx-confirm. */
	priv->buf_layout.options &= ~DPNI_BUF_LAYOUT_OPT_PRIVATE_DATA_SIZE;
	err = dpni_set_tx_conf_buffer_layout(dflt_mc_io, MC_CMD_NO_FLAGS,
					     priv->dpni_handle,
					     &priv->buf_layout);
	if (err) {
		printf("dpni_set_tx_conf_buffer_layout() failed");
		goto err_buf_layout;
	}

	/* Now that we've set our tx buffer layout, retrieve the minimum
	 * required tx data offset.
	 */
	err = dpni_get_tx_data_offset(dflt_mc_io, MC_CMD_NO_FLAGS,
				      priv->dpni_handle, &priv->tx_data_offset);
	if (err) {
		printf("dpni_get_tx_data_offset() failed\n");
		goto err_data_offset;
	}

	/* Warn in case TX data offset is not multiple of 64 bytes. */
	WARN_ON(priv->tx_data_offset % 64);

	/* Accomodate SWA space. */
	priv->tx_data_offset += LDPAA_ETH_SWA_SIZE;
	debug("priv->tx_data_offset=%d\n", priv->tx_data_offset);

	return 0;

err_data_offset:
err_buf_layout:
err_get_attr:
	dpni_close(dflt_mc_io, MC_CMD_NO_FLAGS, priv->dpni_handle);
err_open:
	return err;
}

static int ldpaa_dpni_bind(struct ldpaa_eth_priv *priv)
{
	struct dpni_pools_cfg pools_params;
	struct dpni_tx_flow_cfg dflt_tx_flow;
	int err = 0;

	pools_params.num_dpbp = 1;
	pools_params.pools[0].dpbp_id = (uint16_t)dflt_dpbp->dpbp_attr.id;
	pools_params.pools[0].buffer_size = LDPAA_ETH_RX_BUFFER_SIZE;
	err = dpni_set_pools(dflt_mc_io, MC_CMD_NO_FLAGS, priv->dpni_handle,
			     &pools_params);
	if (err) {
		printf("dpni_set_pools() failed\n");
		return err;
	}

	priv->tx_flow_id = DPNI_NEW_FLOW_ID;
	memset(&dflt_tx_flow, 0, sizeof(dflt_tx_flow));

	dflt_tx_flow.options = DPNI_TX_FLOW_OPT_ONLY_TX_ERROR;
	dflt_tx_flow.conf_err_cfg.use_default_queue = 0;
	dflt_tx_flow.conf_err_cfg.errors_only = 1;
	err = dpni_set_tx_flow(dflt_mc_io, MC_CMD_NO_FLAGS, priv->dpni_handle,
			       &priv->tx_flow_id, &dflt_tx_flow);
	if (err) {
		printf("dpni_set_tx_flow() failed\n");
		return err;
	}

	return 0;
}

static int ldpaa_eth_netdev_init(struct eth_device *net_dev)
{
	int err;
	struct ldpaa_eth_priv *priv = (struct ldpaa_eth_priv *)net_dev->priv;

	sprintf(net_dev->name, "DPNI%d", priv->dpni_id);

	net_dev->iobase = 0;
	net_dev->init = ldpaa_eth_open;
	net_dev->halt = ldpaa_eth_stop;
	net_dev->send = ldpaa_eth_tx;
	net_dev->recv = ldpaa_eth_pull_dequeue_rx;
/*
	TODO: PHY MDIO information
	priv->bus = info->bus;
	priv->phyaddr = info->phy_addr;
	priv->enet_if = info->enet_if;
*/

	if (init_phy(net_dev))
		return 0;

	err = eth_register(net_dev);
	if (err < 0) {
		printf("eth_register() = %d\n", err);
		return err;
	}

	return 0;
}

int ldpaa_eth_init(int id)
{
	struct eth_device		*net_dev = NULL;
	struct ldpaa_eth_priv		*priv = NULL;
	int				err = 0;


	/* Net device */
	net_dev = (struct eth_device *)malloc(sizeof(struct eth_device));
	if (!net_dev) {
		printf("eth_device malloc() failed\n");
		return -ENOMEM;
	}
	memset(net_dev, 0, sizeof(struct eth_device));

	/* alloc the ldpaa ethernet private struct */
	priv = (struct ldpaa_eth_priv *)malloc(sizeof(struct ldpaa_eth_priv));
	if (!priv) {
		printf("ldpaa_eth_priv malloc() failed\n");
		return -ENOMEM;
	}
	memset(priv, 0, sizeof(struct ldpaa_eth_priv));

	net_dev->priv = (void *)priv;
	priv->net_dev = (struct eth_device *)net_dev;
	priv->dpni_id = id;

	err = ldpaa_eth_netdev_init(net_dev);
	if (err)
		goto err_netdev_init;

	debug("ldpaa ethernet: Probed interface %s\n", net_dev->name);
	return 0;

err_netdev_init:
	free(priv);
	net_dev->priv = NULL;
	free(net_dev);

	return err;
}