aboutsummaryrefslogtreecommitdiff
path: root/drivers/net/sfc/txc43128_phy.c
blob: 351794a79215d071aa39ab468b93681d0c7ff205 (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
/****************************************************************************
 * Driver for Solarflare Solarstorm network controllers and boards
 * Copyright 2006-2010 Solarflare Communications Inc.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published
 * by the Free Software Foundation, incorporated herein by reference.
 */

/*
 * Driver for Transwitch/Mysticom CX4 retimer
 * see www.transwitch.com, part is TXC-43128
 */

#include <linux/delay.h>
#include <linux/slab.h>
#include "efx.h"
#include "mdio_10g.h"
#include "phy.h"
#include "nic.h"

/* We expect these MMDs to be in the package */
#define TXC_REQUIRED_DEVS (MDIO_DEVS_PCS |	\
			   MDIO_DEVS_PMAPMD |	\
			   MDIO_DEVS_PHYXS)

#define TXC_LOOPBACKS ((1 << LOOPBACK_PCS) |	\
		       (1 << LOOPBACK_PMAPMD) |	\
		       (1 << LOOPBACK_PHYXS_WS))

/**************************************************************************
 *
 * Compile-time config
 *
 **************************************************************************
 */
#define TXCNAME "TXC43128"
/* Total length of time we'll wait for the PHY to come out of reset (ms) */
#define TXC_MAX_RESET_TIME	500
/* Interval between checks (ms) */
#define TXC_RESET_WAIT		10
/* How long to run BIST (us) */
#define TXC_BIST_DURATION	50

/**************************************************************************
 *
 * Register definitions
 *
 **************************************************************************
 */

/* Command register */
#define TXC_GLRGS_GLCMD		0xc004
/* Useful bits in command register */
/* Lane power-down */
#define TXC_GLCMD_L01PD_LBN	5
#define TXC_GLCMD_L23PD_LBN	6
/* Limited SW reset: preserves configuration but
 * initiates a logic reset. Self-clearing */
#define TXC_GLCMD_LMTSWRST_LBN	14

/* Signal Quality Control */
#define TXC_GLRGS_GSGQLCTL	0xc01a
/* Enable bit */
#define TXC_GSGQLCT_SGQLEN_LBN	15
/* Lane selection */
#define TXC_GSGQLCT_LNSL_LBN	13
#define TXC_GSGQLCT_LNSL_WIDTH	2

/* Analog TX control */
#define TXC_ALRGS_ATXCTL	0xc040
/* Lane power-down */
#define TXC_ATXCTL_TXPD3_LBN	15
#define TXC_ATXCTL_TXPD2_LBN	14
#define TXC_ATXCTL_TXPD1_LBN	13
#define TXC_ATXCTL_TXPD0_LBN	12

/* Amplitude on lanes 0, 1 */
#define TXC_ALRGS_ATXAMP0	0xc041
/* Amplitude on lanes 2, 3 */
#define TXC_ALRGS_ATXAMP1	0xc042
/* Bit position of value for lane 0 (or 2) */
#define TXC_ATXAMP_LANE02_LBN	3
/* Bit position of value for lane 1 (or 3) */
#define TXC_ATXAMP_LANE13_LBN	11

#define TXC_ATXAMP_1280_mV	0
#define TXC_ATXAMP_1200_mV	8
#define TXC_ATXAMP_1120_mV	12
#define TXC_ATXAMP_1060_mV	14
#define TXC_ATXAMP_0820_mV	25
#define TXC_ATXAMP_0720_mV	26
#define TXC_ATXAMP_0580_mV	27
#define TXC_ATXAMP_0440_mV	28

#define TXC_ATXAMP_0820_BOTH					\
	((TXC_ATXAMP_0820_mV << TXC_ATXAMP_LANE02_LBN)		\
	 | (TXC_ATXAMP_0820_mV << TXC_ATXAMP_LANE13_LBN))

#define TXC_ATXAMP_DEFAULT	0x6060 /* From databook */

/* Preemphasis on lanes 0, 1 */
#define TXC_ALRGS_ATXPRE0	0xc043
/* Preemphasis on lanes 2, 3 */
#define TXC_ALRGS_ATXPRE1	0xc044

#define TXC_ATXPRE_NONE 0
#define TXC_ATXPRE_DEFAULT	0x1010 /* From databook */

#define TXC_ALRGS_ARXCTL	0xc045
/* Lane power-down */
#define TXC_ARXCTL_RXPD3_LBN	15
#define TXC_ARXCTL_RXPD2_LBN	14
#define TXC_ARXCTL_RXPD1_LBN	13
#define TXC_ARXCTL_RXPD0_LBN	12

/* Main control */
#define TXC_MRGS_CTL		0xc340
/* Bits in main control */
#define TXC_MCTL_RESET_LBN	15	/* Self clear */
#define TXC_MCTL_TXLED_LBN	14	/* 1 to show align status */
#define TXC_MCTL_RXLED_LBN	13	/* 1 to show align status */

/* GPIO output */
#define TXC_GPIO_OUTPUT		0xc346
#define TXC_GPIO_DIR		0xc348

/* Vendor-specific BIST registers */
#define TXC_BIST_CTL		0xc280
#define TXC_BIST_TXFRMCNT	0xc281
#define TXC_BIST_RX0FRMCNT	0xc282
#define TXC_BIST_RX1FRMCNT	0xc283
#define TXC_BIST_RX2FRMCNT	0xc284
#define TXC_BIST_RX3FRMCNT	0xc285
#define TXC_BIST_RX0ERRCNT	0xc286
#define TXC_BIST_RX1ERRCNT	0xc287
#define TXC_BIST_RX2ERRCNT	0xc288
#define TXC_BIST_RX3ERRCNT	0xc289

/* BIST type (controls bit patter in test) */
#define TXC_BIST_CTRL_TYPE_LBN	10
#define TXC_BIST_CTRL_TYPE_TSD	0	/* TranSwitch Deterministic */
#define TXC_BIST_CTRL_TYPE_CRP	1	/* CRPAT standard */
#define TXC_BIST_CTRL_TYPE_CJP	2	/* CJPAT standard */
#define TXC_BIST_CTRL_TYPE_TSR	3	/* TranSwitch pseudo-random */
/* Set this to 1 for 10 bit and 0 for 8 bit */
#define TXC_BIST_CTRL_B10EN_LBN	12
/* Enable BIST (write 0 to disable) */
#define TXC_BIST_CTRL_ENAB_LBN	13
/* Stop BIST (self-clears when stop complete) */
#define TXC_BIST_CTRL_STOP_LBN	14
/* Start BIST (cleared by writing 1 to STOP) */
#define TXC_BIST_CTRL_STRT_LBN	15

/* Mt. Diablo test configuration */
#define TXC_MTDIABLO_CTRL	0xc34f
#define TXC_MTDIABLO_CTRL_PMA_LOOP_LBN	10

struct txc43128_data {
	unsigned long bug10934_timer;
	enum efx_phy_mode phy_mode;
	enum efx_loopback_mode loopback_mode;
};

/* The PHY sometimes needs a reset to bring the link back up.  So long as
 * it reports link down, we reset it every 5 seconds.
 */
#define BUG10934_RESET_INTERVAL (5 * HZ)

/* Perform a reset that doesn't clear configuration changes */
static void txc_reset_logic(struct efx_nic *efx);

/* Set the output value of a gpio */
void falcon_txc_set_gpio_val(struct efx_nic *efx, int pin, int on)
{
	efx_mdio_set_flag(efx, MDIO_MMD_PHYXS, TXC_GPIO_OUTPUT, 1 << pin, on);
}

/* Set up the GPIO direction register */
void falcon_txc_set_gpio_dir(struct efx_nic *efx, int pin, int dir)
{
	efx_mdio_set_flag(efx, MDIO_MMD_PHYXS, TXC_GPIO_DIR, 1 << pin, dir);
}

/* Reset the PMA/PMD MMD. The documentation is explicit that this does a
 * global reset (it's less clear what reset of other MMDs does).*/
static int txc_reset_phy(struct efx_nic *efx)
{
	int rc = efx_mdio_reset_mmd(efx, MDIO_MMD_PMAPMD,
				    TXC_MAX_RESET_TIME / TXC_RESET_WAIT,
				    TXC_RESET_WAIT);
	if (rc < 0)
		goto fail;

	/* Check that all the MMDs we expect are present and responding. */
	rc = efx_mdio_check_mmds(efx, TXC_REQUIRED_DEVS, 0);
	if (rc < 0)
		goto fail;

	return 0;

fail:
	netif_err(efx, hw, efx->net_dev, TXCNAME ": reset timed out!\n");
	return rc;
}

/* Run a single BIST on one MMD */
static int txc_bist_one(struct efx_nic *efx, int mmd, int test)
{
	int ctrl, bctl;
	int lane;
	int rc = 0;

	/* Set PMA to test into loopback using Mt Diablo reg as per app note */
	ctrl = efx_mdio_read(efx, MDIO_MMD_PCS, TXC_MTDIABLO_CTRL);
	ctrl |= (1 << TXC_MTDIABLO_CTRL_PMA_LOOP_LBN);
	efx_mdio_write(efx, MDIO_MMD_PCS, TXC_MTDIABLO_CTRL, ctrl);

	/* The BIST app. note lists these  as 3 distinct steps. */
	/* Set the BIST type */
	bctl = (test << TXC_BIST_CTRL_TYPE_LBN);
	efx_mdio_write(efx, mmd, TXC_BIST_CTL, bctl);

	/* Set the BSTEN bit in the BIST Control register to enable */
	bctl |= (1 << TXC_BIST_CTRL_ENAB_LBN);
	efx_mdio_write(efx, mmd, TXC_BIST_CTL, bctl);

	/* Set the BSTRT bit in the BIST Control register */
	efx_mdio_write(efx, mmd, TXC_BIST_CTL,
		       bctl | (1 << TXC_BIST_CTRL_STRT_LBN));

	/* Wait. */
	udelay(TXC_BIST_DURATION);

	/* Set the BSTOP bit in the BIST Control register */
	bctl |= (1 << TXC_BIST_CTRL_STOP_LBN);
	efx_mdio_write(efx, mmd, TXC_BIST_CTL, bctl);

	/* The STOP bit should go off when things have stopped */
	while (bctl & (1 << TXC_BIST_CTRL_STOP_LBN))
		bctl = efx_mdio_read(efx, mmd, TXC_BIST_CTL);

	/* Check all the error counts are 0 and all the frame counts are
	   non-zero */
	for (lane = 0; lane < 4; lane++) {
		int count = efx_mdio_read(efx, mmd, TXC_BIST_RX0ERRCNT + lane);
		if (count != 0) {
			netif_err(efx, hw, efx->net_dev, TXCNAME": BIST error. "
				  "Lane %d had %d errs\n", lane, count);
			rc = -EIO;
		}
		count = efx_mdio_read(efx, mmd, TXC_BIST_RX0FRMCNT + lane);
		if (count == 0) {
			netif_err(efx, hw, efx->net_dev, TXCNAME": BIST error. "
				  "Lane %d got 0 frames\n", lane);
			rc = -EIO;
		}
	}

	if (rc == 0)
		netif_info(efx, hw, efx->net_dev, TXCNAME": BIST pass\n");

	/* Disable BIST */
	efx_mdio_write(efx, mmd, TXC_BIST_CTL, 0);

	/* Turn off loopback */
	ctrl &= ~(1 << TXC_MTDIABLO_CTRL_PMA_LOOP_LBN);
	efx_mdio_write(efx, MDIO_MMD_PCS, TXC_MTDIABLO_CTRL, ctrl);

	return rc;
}

static int txc_bist(struct efx_nic *efx)
{
	return txc_bist_one(efx, MDIO_MMD_PCS, TXC_BIST_CTRL_TYPE_TSD);
}

/* Push the non-configurable defaults into the PHY. This must be
 * done after every full reset */
static void txc_apply_defaults(struct efx_nic *efx)
{
	int mctrl;

	/* Turn amplitude down and preemphasis off on the host side
	 * (PHY<->MAC) as this is believed less likely to upset Falcon
	 * and no adverse effects have been noted. It probably also
	 * saves a picowatt or two */

	/* Turn off preemphasis */
	efx_mdio_write(efx, MDIO_MMD_PHYXS, TXC_ALRGS_ATXPRE0, TXC_ATXPRE_NONE);
	efx_mdio_write(efx, MDIO_MMD_PHYXS, TXC_ALRGS_ATXPRE1, TXC_ATXPRE_NONE);

	/* Turn down the amplitude */
	efx_mdio_write(efx, MDIO_MMD_PHYXS,
		       TXC_ALRGS_ATXAMP0, TXC_ATXAMP_0820_BOTH);
	efx_mdio_write(efx, MDIO_MMD_PHYXS,
		       TXC_ALRGS_ATXAMP1, TXC_ATXAMP_0820_BOTH);

	/* Set the line side amplitude and preemphasis to the databook
	 * defaults as an erratum causes them to be 0 on at least some
	 * PHY rev.s */
	efx_mdio_write(efx, MDIO_MMD_PMAPMD,
		       TXC_ALRGS_ATXPRE0, TXC_ATXPRE_DEFAULT);
	efx_mdio_write(efx, MDIO_MMD_PMAPMD,
		       TXC_ALRGS_ATXPRE1, TXC_ATXPRE_DEFAULT);
	efx_mdio_write(efx, MDIO_MMD_PMAPMD,
		       TXC_ALRGS_ATXAMP0, TXC_ATXAMP_DEFAULT);
	efx_mdio_write(efx, MDIO_MMD_PMAPMD,
		       TXC_ALRGS_ATXAMP1, TXC_ATXAMP_DEFAULT);

	/* Set up the LEDs  */
	mctrl = efx_mdio_read(efx, MDIO_MMD_PHYXS, TXC_MRGS_CTL);

	/* Set the Green and Red LEDs to their default modes */
	mctrl &= ~((1 << TXC_MCTL_TXLED_LBN) | (1 << TXC_MCTL_RXLED_LBN));
	efx_mdio_write(efx, MDIO_MMD_PHYXS, TXC_MRGS_CTL, mctrl);

	/* Databook recommends doing this after configuration changes */
	txc_reset_logic(efx);

	falcon_board(efx)->type->init_phy(efx);
}

static int txc43128_phy_probe(struct efx_nic *efx)
{
	struct txc43128_data *phy_data;

	/* Allocate phy private storage */
	phy_data = kzalloc(sizeof(*phy_data), GFP_KERNEL);
	if (!phy_data)
		return -ENOMEM;
	efx->phy_data = phy_data;
	phy_data->phy_mode = efx->phy_mode;

	efx->mdio.mmds = TXC_REQUIRED_DEVS;
	efx->mdio.mode_support = MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22;

	efx->loopback_modes = TXC_LOOPBACKS | FALCON_XMAC_LOOPBACKS;

	return 0;
}

/* Initialisation entry point for this PHY driver */
static int txc43128_phy_init(struct efx_nic *efx)
{
	int rc;

	rc = txc_reset_phy(efx);
	if (rc < 0)
		return rc;

	rc = txc_bist(efx);
	if (rc < 0)
		return rc;

	txc_apply_defaults(efx);

	return 0;
}

/* Set the lane power down state in the global registers */
static void txc_glrgs_lane_power(struct efx_nic *efx, int mmd)
{
	int pd = (1 << TXC_GLCMD_L01PD_LBN) | (1 << TXC_GLCMD_L23PD_LBN);
	int ctl = efx_mdio_read(efx, mmd, TXC_GLRGS_GLCMD);

	if (!(efx->phy_mode & PHY_MODE_LOW_POWER))
		ctl &= ~pd;
	else
		ctl |= pd;

	efx_mdio_write(efx, mmd, TXC_GLRGS_GLCMD, ctl);
}

/* Set the lane power down state in the analog control registers */
static void txc_analog_lane_power(struct efx_nic *efx, int mmd)
{
	int txpd = (1 << TXC_ATXCTL_TXPD3_LBN) | (1 << TXC_ATXCTL_TXPD2_LBN)
		| (1 << TXC_ATXCTL_TXPD1_LBN) | (1 << TXC_ATXCTL_TXPD0_LBN);
	int rxpd = (1 << TXC_ARXCTL_RXPD3_LBN) | (1 << TXC_ARXCTL_RXPD2_LBN)
		| (1 << TXC_ARXCTL_RXPD1_LBN) | (1 << TXC_ARXCTL_RXPD0_LBN);
	int txctl = efx_mdio_read(efx, mmd, TXC_ALRGS_ATXCTL);
	int rxctl = efx_mdio_read(efx, mmd, TXC_ALRGS_ARXCTL);

	if (!(efx->phy_mode & PHY_MODE_LOW_POWER)) {
		txctl &= ~txpd;
		rxctl &= ~rxpd;
	} else {
		txctl |= txpd;
		rxctl |= rxpd;
	}

	efx_mdio_write(efx, mmd, TXC_ALRGS_ATXCTL, txctl);
	efx_mdio_write(efx, mmd, TXC_ALRGS_ARXCTL, rxctl);
}

static void txc_set_power(struct efx_nic *efx)
{
	/* According to the data book, all the MMDs can do low power */
	efx_mdio_set_mmds_lpower(efx,
				 !!(efx->phy_mode & PHY_MODE_LOW_POWER),
				 TXC_REQUIRED_DEVS);

	/* Global register bank is in PCS, PHY XS. These control the host
	 * side and line side settings respectively. */
	txc_glrgs_lane_power(efx, MDIO_MMD_PCS);
	txc_glrgs_lane_power(efx, MDIO_MMD_PHYXS);

	/* Analog register bank in PMA/PMD, PHY XS */
	txc_analog_lane_power(efx, MDIO_MMD_PMAPMD);
	txc_analog_lane_power(efx, MDIO_MMD_PHYXS);
}

static void txc_reset_logic_mmd(struct efx_nic *efx, int mmd)
{
	int val = efx_mdio_read(efx, mmd, TXC_GLRGS_GLCMD);
	int tries = 50;

	val |= (1 << TXC_GLCMD_LMTSWRST_LBN);
	efx_mdio_write(efx, mmd, TXC_GLRGS_GLCMD, val);
	while (tries--) {
		val = efx_mdio_read(efx, mmd, TXC_GLRGS_GLCMD);
		if (!(val & (1 << TXC_GLCMD_LMTSWRST_LBN)))
			break;
		udelay(1);
	}
	if (!tries)
		netif_info(efx, hw, efx->net_dev,
			   TXCNAME " Logic reset timed out!\n");
}

/* Perform a logic reset. This preserves the configuration registers
 * and is needed for some configuration changes to take effect */
static void txc_reset_logic(struct efx_nic *efx)
{
	/* The data sheet claims we can do the logic reset on either the
	 * PCS or the PHYXS and the result is a reset of both host- and
	 * line-side logic. */
	txc_reset_logic_mmd(efx, MDIO_MMD_PCS);
}

static bool txc43128_phy_read_link(struct efx_nic *efx)
{
	return efx_mdio_links_ok(efx, TXC_REQUIRED_DEVS);
}

static int txc43128_phy_reconfigure(struct efx_nic *efx)
{
	struct txc43128_data *phy_data = efx->phy_data;
	enum efx_phy_mode mode_change = efx->phy_mode ^ phy_data->phy_mode;
	bool loop_change = LOOPBACK_CHANGED(phy_data, efx, TXC_LOOPBACKS);

	if (efx->phy_mode & mode_change & PHY_MODE_TX_DISABLED) {
		txc_reset_phy(efx);
		txc_apply_defaults(efx);
		falcon_reset_xaui(efx);
		mode_change &= ~PHY_MODE_TX_DISABLED;
	}

	efx_mdio_transmit_disable(efx);
	efx_mdio_phy_reconfigure(efx);
	if (mode_change & PHY_MODE_LOW_POWER)
		txc_set_power(efx);

	/* The data sheet claims this is required after every reconfiguration
	 * (note at end of 7.1), but we mustn't do it when nothing changes as
	 * it glitches the link, and reconfigure gets called on link change,
	 * so we get an IRQ storm on link up. */
	if (loop_change || mode_change)
		txc_reset_logic(efx);

	phy_data->phy_mode = efx->phy_mode;
	phy_data->loopback_mode = efx->loopback_mode;

	return 0;
}

static void txc43128_phy_fini(struct efx_nic *efx)
{
	/* Disable link events */
	efx_mdio_write(efx, MDIO_MMD_PMAPMD, MDIO_PMA_LASI_CTRL, 0);
}

static void txc43128_phy_remove(struct efx_nic *efx)
{
	kfree(efx->phy_data);
	efx->phy_data = NULL;
}

/* Periodic callback: this exists mainly to poll link status as we
 * don't use LASI interrupts */
static bool txc43128_phy_poll(struct efx_nic *efx)
{
	struct txc43128_data *data = efx->phy_data;
	bool was_up = efx->link_state.up;

	efx->link_state.up = txc43128_phy_read_link(efx);
	efx->link_state.speed = 10000;
	efx->link_state.fd = true;
	efx->link_state.fc = efx->wanted_fc;

	if (efx->link_state.up || (efx->loopback_mode != LOOPBACK_NONE)) {
		data->bug10934_timer = jiffies;
	} else {
		if (time_after_eq(jiffies, (data->bug10934_timer +
					    BUG10934_RESET_INTERVAL))) {
			data->bug10934_timer = jiffies;
			txc_reset_logic(efx);
		}
	}

	return efx->link_state.up != was_up;
}

static const char *txc43128_test_names[] = {
	"bist"
};

static const char *txc43128_test_name(struct efx_nic *efx, unsigned int index)
{
	if (index < ARRAY_SIZE(txc43128_test_names))
		return txc43128_test_names[index];
	return NULL;
}

static int txc43128_run_tests(struct efx_nic *efx, int *results, unsigned flags)
{
	int rc;

	if (!(flags & ETH_TEST_FL_OFFLINE))
		return 0;

	rc = txc_reset_phy(efx);
	if (rc < 0)
		return rc;

	rc = txc_bist(efx);
	txc_apply_defaults(efx);
	results[0] = rc ? -1 : 1;
	return rc;
}

static void txc43128_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd)
{
	mdio45_ethtool_gset(&efx->mdio, ecmd);
}

struct efx_phy_operations falcon_txc_phy_ops = {
	.probe		= txc43128_phy_probe,
	.init		= txc43128_phy_init,
	.reconfigure	= txc43128_phy_reconfigure,
	.poll		= txc43128_phy_poll,
	.fini		= txc43128_phy_fini,
	.remove		= txc43128_phy_remove,
	.get_settings	= txc43128_get_settings,
	.set_settings	= efx_mdio_set_settings,
	.test_alive	= efx_mdio_test_alive,
	.run_tests	= txc43128_run_tests,
	.test_name	= txc43128_test_name,
};