1 /****************************************************************************
2  * Driver for Solarflare network controllers and boards
3  * Copyright 2006-2011 Solarflare Communications Inc.
4  *
5  * This program is free software; you can redistribute it and/or modify it
6  * under the terms of the GNU General Public License version 2 as published
7  * by the Free Software Foundation, incorporated herein by reference.
8  */
9 
10 /*
11  * Driver for Transwitch/Mysticom CX4 retimer
12  * see www.transwitch.com, part is TXC-43128
13  */
14 
15 #include <linux/delay.h>
16 #include <linux/slab.h>
17 #include "efx.h"
18 #include "mdio_10g.h"
19 #include "phy.h"
20 #include "nic.h"
21 
22 /* We expect these MMDs to be in the package */
23 #define TXC_REQUIRED_DEVS (MDIO_DEVS_PCS |	\
24 			   MDIO_DEVS_PMAPMD |	\
25 			   MDIO_DEVS_PHYXS)
26 
27 #define TXC_LOOPBACKS ((1 << LOOPBACK_PCS) |	\
28 		       (1 << LOOPBACK_PMAPMD) |	\
29 		       (1 << LOOPBACK_PHYXS_WS))
30 
31 /**************************************************************************
32  *
33  * Compile-time config
34  *
35  **************************************************************************
36  */
37 #define TXCNAME "TXC43128"
38 /* Total length of time we'll wait for the PHY to come out of reset (ms) */
39 #define TXC_MAX_RESET_TIME	500
40 /* Interval between checks (ms) */
41 #define TXC_RESET_WAIT		10
42 /* How long to run BIST (us) */
43 #define TXC_BIST_DURATION	50
44 
45 /**************************************************************************
46  *
47  * Register definitions
48  *
49  **************************************************************************
50  */
51 
52 /* Command register */
53 #define TXC_GLRGS_GLCMD		0xc004
54 /* Useful bits in command register */
55 /* Lane power-down */
56 #define TXC_GLCMD_L01PD_LBN	5
57 #define TXC_GLCMD_L23PD_LBN	6
58 /* Limited SW reset: preserves configuration but
59  * initiates a logic reset. Self-clearing */
60 #define TXC_GLCMD_LMTSWRST_LBN	14
61 
62 /* Signal Quality Control */
63 #define TXC_GLRGS_GSGQLCTL	0xc01a
64 /* Enable bit */
65 #define TXC_GSGQLCT_SGQLEN_LBN	15
66 /* Lane selection */
67 #define TXC_GSGQLCT_LNSL_LBN	13
68 #define TXC_GSGQLCT_LNSL_WIDTH	2
69 
70 /* Analog TX control */
71 #define TXC_ALRGS_ATXCTL	0xc040
72 /* Lane power-down */
73 #define TXC_ATXCTL_TXPD3_LBN	15
74 #define TXC_ATXCTL_TXPD2_LBN	14
75 #define TXC_ATXCTL_TXPD1_LBN	13
76 #define TXC_ATXCTL_TXPD0_LBN	12
77 
78 /* Amplitude on lanes 0, 1 */
79 #define TXC_ALRGS_ATXAMP0	0xc041
80 /* Amplitude on lanes 2, 3 */
81 #define TXC_ALRGS_ATXAMP1	0xc042
82 /* Bit position of value for lane 0 (or 2) */
83 #define TXC_ATXAMP_LANE02_LBN	3
84 /* Bit position of value for lane 1 (or 3) */
85 #define TXC_ATXAMP_LANE13_LBN	11
86 
87 #define TXC_ATXAMP_1280_mV	0
88 #define TXC_ATXAMP_1200_mV	8
89 #define TXC_ATXAMP_1120_mV	12
90 #define TXC_ATXAMP_1060_mV	14
91 #define TXC_ATXAMP_0820_mV	25
92 #define TXC_ATXAMP_0720_mV	26
93 #define TXC_ATXAMP_0580_mV	27
94 #define TXC_ATXAMP_0440_mV	28
95 
96 #define TXC_ATXAMP_0820_BOTH					\
97 	((TXC_ATXAMP_0820_mV << TXC_ATXAMP_LANE02_LBN)		\
98 	 | (TXC_ATXAMP_0820_mV << TXC_ATXAMP_LANE13_LBN))
99 
100 #define TXC_ATXAMP_DEFAULT	0x6060 /* From databook */
101 
102 /* Preemphasis on lanes 0, 1 */
103 #define TXC_ALRGS_ATXPRE0	0xc043
104 /* Preemphasis on lanes 2, 3 */
105 #define TXC_ALRGS_ATXPRE1	0xc044
106 
107 #define TXC_ATXPRE_NONE 0
108 #define TXC_ATXPRE_DEFAULT	0x1010 /* From databook */
109 
110 #define TXC_ALRGS_ARXCTL	0xc045
111 /* Lane power-down */
112 #define TXC_ARXCTL_RXPD3_LBN	15
113 #define TXC_ARXCTL_RXPD2_LBN	14
114 #define TXC_ARXCTL_RXPD1_LBN	13
115 #define TXC_ARXCTL_RXPD0_LBN	12
116 
117 /* Main control */
118 #define TXC_MRGS_CTL		0xc340
119 /* Bits in main control */
120 #define TXC_MCTL_RESET_LBN	15	/* Self clear */
121 #define TXC_MCTL_TXLED_LBN	14	/* 1 to show align status */
122 #define TXC_MCTL_RXLED_LBN	13	/* 1 to show align status */
123 
124 /* GPIO output */
125 #define TXC_GPIO_OUTPUT		0xc346
126 #define TXC_GPIO_DIR		0xc348
127 
128 /* Vendor-specific BIST registers */
129 #define TXC_BIST_CTL		0xc280
130 #define TXC_BIST_TXFRMCNT	0xc281
131 #define TXC_BIST_RX0FRMCNT	0xc282
132 #define TXC_BIST_RX1FRMCNT	0xc283
133 #define TXC_BIST_RX2FRMCNT	0xc284
134 #define TXC_BIST_RX3FRMCNT	0xc285
135 #define TXC_BIST_RX0ERRCNT	0xc286
136 #define TXC_BIST_RX1ERRCNT	0xc287
137 #define TXC_BIST_RX2ERRCNT	0xc288
138 #define TXC_BIST_RX3ERRCNT	0xc289
139 
140 /* BIST type (controls bit patter in test) */
141 #define TXC_BIST_CTRL_TYPE_LBN	10
142 #define TXC_BIST_CTRL_TYPE_TSD	0	/* TranSwitch Deterministic */
143 #define TXC_BIST_CTRL_TYPE_CRP	1	/* CRPAT standard */
144 #define TXC_BIST_CTRL_TYPE_CJP	2	/* CJPAT standard */
145 #define TXC_BIST_CTRL_TYPE_TSR	3	/* TranSwitch pseudo-random */
146 /* Set this to 1 for 10 bit and 0 for 8 bit */
147 #define TXC_BIST_CTRL_B10EN_LBN	12
148 /* Enable BIST (write 0 to disable) */
149 #define TXC_BIST_CTRL_ENAB_LBN	13
150 /* Stop BIST (self-clears when stop complete) */
151 #define TXC_BIST_CTRL_STOP_LBN	14
152 /* Start BIST (cleared by writing 1 to STOP) */
153 #define TXC_BIST_CTRL_STRT_LBN	15
154 
155 /* Mt. Diablo test configuration */
156 #define TXC_MTDIABLO_CTRL	0xc34f
157 #define TXC_MTDIABLO_CTRL_PMA_LOOP_LBN	10
158 
159 struct txc43128_data {
160 	unsigned long bug10934_timer;
161 	enum ef4_phy_mode phy_mode;
162 	enum ef4_loopback_mode loopback_mode;
163 };
164 
165 /* The PHY sometimes needs a reset to bring the link back up.  So long as
166  * it reports link down, we reset it every 5 seconds.
167  */
168 #define BUG10934_RESET_INTERVAL (5 * HZ)
169 
170 /* Perform a reset that doesn't clear configuration changes */
171 static void txc_reset_logic(struct ef4_nic *efx);
172 
173 /* Set the output value of a gpio */
174 void falcon_txc_set_gpio_val(struct ef4_nic *efx, int pin, int on)
175 {
176 	ef4_mdio_set_flag(efx, MDIO_MMD_PHYXS, TXC_GPIO_OUTPUT, 1 << pin, on);
177 }
178 
179 /* Set up the GPIO direction register */
180 void falcon_txc_set_gpio_dir(struct ef4_nic *efx, int pin, int dir)
181 {
182 	ef4_mdio_set_flag(efx, MDIO_MMD_PHYXS, TXC_GPIO_DIR, 1 << pin, dir);
183 }
184 
185 /* Reset the PMA/PMD MMD. The documentation is explicit that this does a
186  * global reset (it's less clear what reset of other MMDs does).*/
187 static int txc_reset_phy(struct ef4_nic *efx)
188 {
189 	int rc = ef4_mdio_reset_mmd(efx, MDIO_MMD_PMAPMD,
190 				    TXC_MAX_RESET_TIME / TXC_RESET_WAIT,
191 				    TXC_RESET_WAIT);
192 	if (rc < 0)
193 		goto fail;
194 
195 	/* Check that all the MMDs we expect are present and responding. */
196 	rc = ef4_mdio_check_mmds(efx, TXC_REQUIRED_DEVS);
197 	if (rc < 0)
198 		goto fail;
199 
200 	return 0;
201 
202 fail:
203 	netif_err(efx, hw, efx->net_dev, TXCNAME ": reset timed out!\n");
204 	return rc;
205 }
206 
207 /* Run a single BIST on one MMD */
208 static int txc_bist_one(struct ef4_nic *efx, int mmd, int test)
209 {
210 	int ctrl, bctl;
211 	int lane;
212 	int rc = 0;
213 
214 	/* Set PMA to test into loopback using Mt Diablo reg as per app note */
215 	ctrl = ef4_mdio_read(efx, MDIO_MMD_PCS, TXC_MTDIABLO_CTRL);
216 	ctrl |= (1 << TXC_MTDIABLO_CTRL_PMA_LOOP_LBN);
217 	ef4_mdio_write(efx, MDIO_MMD_PCS, TXC_MTDIABLO_CTRL, ctrl);
218 
219 	/* The BIST app. note lists these  as 3 distinct steps. */
220 	/* Set the BIST type */
221 	bctl = (test << TXC_BIST_CTRL_TYPE_LBN);
222 	ef4_mdio_write(efx, mmd, TXC_BIST_CTL, bctl);
223 
224 	/* Set the BSTEN bit in the BIST Control register to enable */
225 	bctl |= (1 << TXC_BIST_CTRL_ENAB_LBN);
226 	ef4_mdio_write(efx, mmd, TXC_BIST_CTL, bctl);
227 
228 	/* Set the BSTRT bit in the BIST Control register */
229 	ef4_mdio_write(efx, mmd, TXC_BIST_CTL,
230 		       bctl | (1 << TXC_BIST_CTRL_STRT_LBN));
231 
232 	/* Wait. */
233 	udelay(TXC_BIST_DURATION);
234 
235 	/* Set the BSTOP bit in the BIST Control register */
236 	bctl |= (1 << TXC_BIST_CTRL_STOP_LBN);
237 	ef4_mdio_write(efx, mmd, TXC_BIST_CTL, bctl);
238 
239 	/* The STOP bit should go off when things have stopped */
240 	while (bctl & (1 << TXC_BIST_CTRL_STOP_LBN))
241 		bctl = ef4_mdio_read(efx, mmd, TXC_BIST_CTL);
242 
243 	/* Check all the error counts are 0 and all the frame counts are
244 	   non-zero */
245 	for (lane = 0; lane < 4; lane++) {
246 		int count = ef4_mdio_read(efx, mmd, TXC_BIST_RX0ERRCNT + lane);
247 		if (count != 0) {
248 			netif_err(efx, hw, efx->net_dev, TXCNAME": BIST error. "
249 				  "Lane %d had %d errs\n", lane, count);
250 			rc = -EIO;
251 		}
252 		count = ef4_mdio_read(efx, mmd, TXC_BIST_RX0FRMCNT + lane);
253 		if (count == 0) {
254 			netif_err(efx, hw, efx->net_dev, TXCNAME": BIST error. "
255 				  "Lane %d got 0 frames\n", lane);
256 			rc = -EIO;
257 		}
258 	}
259 
260 	if (rc == 0)
261 		netif_info(efx, hw, efx->net_dev, TXCNAME": BIST pass\n");
262 
263 	/* Disable BIST */
264 	ef4_mdio_write(efx, mmd, TXC_BIST_CTL, 0);
265 
266 	/* Turn off loopback */
267 	ctrl &= ~(1 << TXC_MTDIABLO_CTRL_PMA_LOOP_LBN);
268 	ef4_mdio_write(efx, MDIO_MMD_PCS, TXC_MTDIABLO_CTRL, ctrl);
269 
270 	return rc;
271 }
272 
273 static int txc_bist(struct ef4_nic *efx)
274 {
275 	return txc_bist_one(efx, MDIO_MMD_PCS, TXC_BIST_CTRL_TYPE_TSD);
276 }
277 
278 /* Push the non-configurable defaults into the PHY. This must be
279  * done after every full reset */
280 static void txc_apply_defaults(struct ef4_nic *efx)
281 {
282 	int mctrl;
283 
284 	/* Turn amplitude down and preemphasis off on the host side
285 	 * (PHY<->MAC) as this is believed less likely to upset Falcon
286 	 * and no adverse effects have been noted. It probably also
287 	 * saves a picowatt or two */
288 
289 	/* Turn off preemphasis */
290 	ef4_mdio_write(efx, MDIO_MMD_PHYXS, TXC_ALRGS_ATXPRE0, TXC_ATXPRE_NONE);
291 	ef4_mdio_write(efx, MDIO_MMD_PHYXS, TXC_ALRGS_ATXPRE1, TXC_ATXPRE_NONE);
292 
293 	/* Turn down the amplitude */
294 	ef4_mdio_write(efx, MDIO_MMD_PHYXS,
295 		       TXC_ALRGS_ATXAMP0, TXC_ATXAMP_0820_BOTH);
296 	ef4_mdio_write(efx, MDIO_MMD_PHYXS,
297 		       TXC_ALRGS_ATXAMP1, TXC_ATXAMP_0820_BOTH);
298 
299 	/* Set the line side amplitude and preemphasis to the databook
300 	 * defaults as an erratum causes them to be 0 on at least some
301 	 * PHY rev.s */
302 	ef4_mdio_write(efx, MDIO_MMD_PMAPMD,
303 		       TXC_ALRGS_ATXPRE0, TXC_ATXPRE_DEFAULT);
304 	ef4_mdio_write(efx, MDIO_MMD_PMAPMD,
305 		       TXC_ALRGS_ATXPRE1, TXC_ATXPRE_DEFAULT);
306 	ef4_mdio_write(efx, MDIO_MMD_PMAPMD,
307 		       TXC_ALRGS_ATXAMP0, TXC_ATXAMP_DEFAULT);
308 	ef4_mdio_write(efx, MDIO_MMD_PMAPMD,
309 		       TXC_ALRGS_ATXAMP1, TXC_ATXAMP_DEFAULT);
310 
311 	/* Set up the LEDs  */
312 	mctrl = ef4_mdio_read(efx, MDIO_MMD_PHYXS, TXC_MRGS_CTL);
313 
314 	/* Set the Green and Red LEDs to their default modes */
315 	mctrl &= ~((1 << TXC_MCTL_TXLED_LBN) | (1 << TXC_MCTL_RXLED_LBN));
316 	ef4_mdio_write(efx, MDIO_MMD_PHYXS, TXC_MRGS_CTL, mctrl);
317 
318 	/* Databook recommends doing this after configuration changes */
319 	txc_reset_logic(efx);
320 
321 	falcon_board(efx)->type->init_phy(efx);
322 }
323 
324 static int txc43128_phy_probe(struct ef4_nic *efx)
325 {
326 	struct txc43128_data *phy_data;
327 
328 	/* Allocate phy private storage */
329 	phy_data = kzalloc(sizeof(*phy_data), GFP_KERNEL);
330 	if (!phy_data)
331 		return -ENOMEM;
332 	efx->phy_data = phy_data;
333 	phy_data->phy_mode = efx->phy_mode;
334 
335 	efx->mdio.mmds = TXC_REQUIRED_DEVS;
336 	efx->mdio.mode_support = MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22;
337 
338 	efx->loopback_modes = TXC_LOOPBACKS | FALCON_XMAC_LOOPBACKS;
339 
340 	return 0;
341 }
342 
343 /* Initialisation entry point for this PHY driver */
344 static int txc43128_phy_init(struct ef4_nic *efx)
345 {
346 	int rc;
347 
348 	rc = txc_reset_phy(efx);
349 	if (rc < 0)
350 		return rc;
351 
352 	rc = txc_bist(efx);
353 	if (rc < 0)
354 		return rc;
355 
356 	txc_apply_defaults(efx);
357 
358 	return 0;
359 }
360 
361 /* Set the lane power down state in the global registers */
362 static void txc_glrgs_lane_power(struct ef4_nic *efx, int mmd)
363 {
364 	int pd = (1 << TXC_GLCMD_L01PD_LBN) | (1 << TXC_GLCMD_L23PD_LBN);
365 	int ctl = ef4_mdio_read(efx, mmd, TXC_GLRGS_GLCMD);
366 
367 	if (!(efx->phy_mode & PHY_MODE_LOW_POWER))
368 		ctl &= ~pd;
369 	else
370 		ctl |= pd;
371 
372 	ef4_mdio_write(efx, mmd, TXC_GLRGS_GLCMD, ctl);
373 }
374 
375 /* Set the lane power down state in the analog control registers */
376 static void txc_analog_lane_power(struct ef4_nic *efx, int mmd)
377 {
378 	int txpd = (1 << TXC_ATXCTL_TXPD3_LBN) | (1 << TXC_ATXCTL_TXPD2_LBN)
379 		| (1 << TXC_ATXCTL_TXPD1_LBN) | (1 << TXC_ATXCTL_TXPD0_LBN);
380 	int rxpd = (1 << TXC_ARXCTL_RXPD3_LBN) | (1 << TXC_ARXCTL_RXPD2_LBN)
381 		| (1 << TXC_ARXCTL_RXPD1_LBN) | (1 << TXC_ARXCTL_RXPD0_LBN);
382 	int txctl = ef4_mdio_read(efx, mmd, TXC_ALRGS_ATXCTL);
383 	int rxctl = ef4_mdio_read(efx, mmd, TXC_ALRGS_ARXCTL);
384 
385 	if (!(efx->phy_mode & PHY_MODE_LOW_POWER)) {
386 		txctl &= ~txpd;
387 		rxctl &= ~rxpd;
388 	} else {
389 		txctl |= txpd;
390 		rxctl |= rxpd;
391 	}
392 
393 	ef4_mdio_write(efx, mmd, TXC_ALRGS_ATXCTL, txctl);
394 	ef4_mdio_write(efx, mmd, TXC_ALRGS_ARXCTL, rxctl);
395 }
396 
397 static void txc_set_power(struct ef4_nic *efx)
398 {
399 	/* According to the data book, all the MMDs can do low power */
400 	ef4_mdio_set_mmds_lpower(efx,
401 				 !!(efx->phy_mode & PHY_MODE_LOW_POWER),
402 				 TXC_REQUIRED_DEVS);
403 
404 	/* Global register bank is in PCS, PHY XS. These control the host
405 	 * side and line side settings respectively. */
406 	txc_glrgs_lane_power(efx, MDIO_MMD_PCS);
407 	txc_glrgs_lane_power(efx, MDIO_MMD_PHYXS);
408 
409 	/* Analog register bank in PMA/PMD, PHY XS */
410 	txc_analog_lane_power(efx, MDIO_MMD_PMAPMD);
411 	txc_analog_lane_power(efx, MDIO_MMD_PHYXS);
412 }
413 
414 static void txc_reset_logic_mmd(struct ef4_nic *efx, int mmd)
415 {
416 	int val = ef4_mdio_read(efx, mmd, TXC_GLRGS_GLCMD);
417 	int tries = 50;
418 
419 	val |= (1 << TXC_GLCMD_LMTSWRST_LBN);
420 	ef4_mdio_write(efx, mmd, TXC_GLRGS_GLCMD, val);
421 	while (--tries) {
422 		val = ef4_mdio_read(efx, mmd, TXC_GLRGS_GLCMD);
423 		if (!(val & (1 << TXC_GLCMD_LMTSWRST_LBN)))
424 			break;
425 		udelay(1);
426 	}
427 	if (!tries)
428 		netif_info(efx, hw, efx->net_dev,
429 			   TXCNAME " Logic reset timed out!\n");
430 }
431 
432 /* Perform a logic reset. This preserves the configuration registers
433  * and is needed for some configuration changes to take effect */
434 static void txc_reset_logic(struct ef4_nic *efx)
435 {
436 	/* The data sheet claims we can do the logic reset on either the
437 	 * PCS or the PHYXS and the result is a reset of both host- and
438 	 * line-side logic. */
439 	txc_reset_logic_mmd(efx, MDIO_MMD_PCS);
440 }
441 
442 static bool txc43128_phy_read_link(struct ef4_nic *efx)
443 {
444 	return ef4_mdio_links_ok(efx, TXC_REQUIRED_DEVS);
445 }
446 
447 static int txc43128_phy_reconfigure(struct ef4_nic *efx)
448 {
449 	struct txc43128_data *phy_data = efx->phy_data;
450 	enum ef4_phy_mode mode_change = efx->phy_mode ^ phy_data->phy_mode;
451 	bool loop_change = LOOPBACK_CHANGED(phy_data, efx, TXC_LOOPBACKS);
452 
453 	if (efx->phy_mode & mode_change & PHY_MODE_TX_DISABLED) {
454 		txc_reset_phy(efx);
455 		txc_apply_defaults(efx);
456 		falcon_reset_xaui(efx);
457 		mode_change &= ~PHY_MODE_TX_DISABLED;
458 	}
459 
460 	ef4_mdio_transmit_disable(efx);
461 	ef4_mdio_phy_reconfigure(efx);
462 	if (mode_change & PHY_MODE_LOW_POWER)
463 		txc_set_power(efx);
464 
465 	/* The data sheet claims this is required after every reconfiguration
466 	 * (note at end of 7.1), but we mustn't do it when nothing changes as
467 	 * it glitches the link, and reconfigure gets called on link change,
468 	 * so we get an IRQ storm on link up. */
469 	if (loop_change || mode_change)
470 		txc_reset_logic(efx);
471 
472 	phy_data->phy_mode = efx->phy_mode;
473 	phy_data->loopback_mode = efx->loopback_mode;
474 
475 	return 0;
476 }
477 
478 static void txc43128_phy_fini(struct ef4_nic *efx)
479 {
480 	/* Disable link events */
481 	ef4_mdio_write(efx, MDIO_MMD_PMAPMD, MDIO_PMA_LASI_CTRL, 0);
482 }
483 
484 static void txc43128_phy_remove(struct ef4_nic *efx)
485 {
486 	kfree(efx->phy_data);
487 	efx->phy_data = NULL;
488 }
489 
490 /* Periodic callback: this exists mainly to poll link status as we
491  * don't use LASI interrupts */
492 static bool txc43128_phy_poll(struct ef4_nic *efx)
493 {
494 	struct txc43128_data *data = efx->phy_data;
495 	bool was_up = efx->link_state.up;
496 
497 	efx->link_state.up = txc43128_phy_read_link(efx);
498 	efx->link_state.speed = 10000;
499 	efx->link_state.fd = true;
500 	efx->link_state.fc = efx->wanted_fc;
501 
502 	if (efx->link_state.up || (efx->loopback_mode != LOOPBACK_NONE)) {
503 		data->bug10934_timer = jiffies;
504 	} else {
505 		if (time_after_eq(jiffies, (data->bug10934_timer +
506 					    BUG10934_RESET_INTERVAL))) {
507 			data->bug10934_timer = jiffies;
508 			txc_reset_logic(efx);
509 		}
510 	}
511 
512 	return efx->link_state.up != was_up;
513 }
514 
515 static const char *const txc43128_test_names[] = {
516 	"bist"
517 };
518 
519 static const char *txc43128_test_name(struct ef4_nic *efx, unsigned int index)
520 {
521 	if (index < ARRAY_SIZE(txc43128_test_names))
522 		return txc43128_test_names[index];
523 	return NULL;
524 }
525 
526 static int txc43128_run_tests(struct ef4_nic *efx, int *results, unsigned flags)
527 {
528 	int rc;
529 
530 	if (!(flags & ETH_TEST_FL_OFFLINE))
531 		return 0;
532 
533 	rc = txc_reset_phy(efx);
534 	if (rc < 0)
535 		return rc;
536 
537 	rc = txc_bist(efx);
538 	txc_apply_defaults(efx);
539 	results[0] = rc ? -1 : 1;
540 	return rc;
541 }
542 
543 static void txc43128_get_link_ksettings(struct ef4_nic *efx,
544 					struct ethtool_link_ksettings *cmd)
545 {
546 	mdio45_ethtool_ksettings_get(&efx->mdio, cmd);
547 }
548 
549 const struct ef4_phy_operations falcon_txc_phy_ops = {
550 	.probe		= txc43128_phy_probe,
551 	.init		= txc43128_phy_init,
552 	.reconfigure	= txc43128_phy_reconfigure,
553 	.poll		= txc43128_phy_poll,
554 	.fini		= txc43128_phy_fini,
555 	.remove		= txc43128_phy_remove,
556 	.get_link_ksettings = txc43128_get_link_ksettings,
557 	.set_link_ksettings = ef4_mdio_set_link_ksettings,
558 	.test_alive	= ef4_mdio_test_alive,
559 	.run_tests	= txc43128_run_tests,
560 	.test_name	= txc43128_test_name,
561 };
562