1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 1999 - 2018 Intel Corporation. */
3 
4 #include "ixgbe_x540.h"
5 #include "ixgbe_type.h"
6 #include "ixgbe_common.h"
7 #include "ixgbe_phy.h"
8 
9 static s32 ixgbe_setup_kr_speed_x550em(struct ixgbe_hw *, ixgbe_link_speed);
10 static s32 ixgbe_setup_fc_x550em(struct ixgbe_hw *);
11 static void ixgbe_fc_autoneg_fiber_x550em_a(struct ixgbe_hw *);
12 static void ixgbe_fc_autoneg_backplane_x550em_a(struct ixgbe_hw *);
13 static s32 ixgbe_setup_fc_backplane_x550em_a(struct ixgbe_hw *);
14 
15 static s32 ixgbe_get_invariants_X550_x(struct ixgbe_hw *hw)
16 {
17 	struct ixgbe_mac_info *mac = &hw->mac;
18 	struct ixgbe_phy_info *phy = &hw->phy;
19 	struct ixgbe_link_info *link = &hw->link;
20 
21 	/* Start with X540 invariants, since so simular */
22 	ixgbe_get_invariants_X540(hw);
23 
24 	if (mac->ops.get_media_type(hw) != ixgbe_media_type_copper)
25 		phy->ops.set_phy_power = NULL;
26 
27 	link->addr = IXGBE_CS4227;
28 
29 	return 0;
30 }
31 
32 static s32 ixgbe_get_invariants_X550_x_fw(struct ixgbe_hw *hw)
33 {
34 	struct ixgbe_phy_info *phy = &hw->phy;
35 
36 	/* Start with X540 invariants, since so similar */
37 	ixgbe_get_invariants_X540(hw);
38 
39 	phy->ops.set_phy_power = NULL;
40 
41 	return 0;
42 }
43 
44 static s32 ixgbe_get_invariants_X550_a(struct ixgbe_hw *hw)
45 {
46 	struct ixgbe_mac_info *mac = &hw->mac;
47 	struct ixgbe_phy_info *phy = &hw->phy;
48 
49 	/* Start with X540 invariants, since so simular */
50 	ixgbe_get_invariants_X540(hw);
51 
52 	if (mac->ops.get_media_type(hw) != ixgbe_media_type_copper)
53 		phy->ops.set_phy_power = NULL;
54 
55 	return 0;
56 }
57 
58 static s32 ixgbe_get_invariants_X550_a_fw(struct ixgbe_hw *hw)
59 {
60 	struct ixgbe_phy_info *phy = &hw->phy;
61 
62 	/* Start with X540 invariants, since so similar */
63 	ixgbe_get_invariants_X540(hw);
64 
65 	phy->ops.set_phy_power = NULL;
66 
67 	return 0;
68 }
69 
70 /** ixgbe_setup_mux_ctl - Setup ESDP register for I2C mux control
71  *  @hw: pointer to hardware structure
72  **/
73 static void ixgbe_setup_mux_ctl(struct ixgbe_hw *hw)
74 {
75 	u32 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
76 
77 	if (hw->bus.lan_id) {
78 		esdp &= ~(IXGBE_ESDP_SDP1_NATIVE | IXGBE_ESDP_SDP1);
79 		esdp |= IXGBE_ESDP_SDP1_DIR;
80 	}
81 	esdp &= ~(IXGBE_ESDP_SDP0_NATIVE | IXGBE_ESDP_SDP0_DIR);
82 	IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
83 	IXGBE_WRITE_FLUSH(hw);
84 }
85 
86 /**
87  * ixgbe_read_cs4227 - Read CS4227 register
88  * @hw: pointer to hardware structure
89  * @reg: register number to write
90  * @value: pointer to receive value read
91  *
92  * Returns status code
93  */
94 static s32 ixgbe_read_cs4227(struct ixgbe_hw *hw, u16 reg, u16 *value)
95 {
96 	return hw->link.ops.read_link_unlocked(hw, hw->link.addr, reg, value);
97 }
98 
99 /**
100  * ixgbe_write_cs4227 - Write CS4227 register
101  * @hw: pointer to hardware structure
102  * @reg: register number to write
103  * @value: value to write to register
104  *
105  * Returns status code
106  */
107 static s32 ixgbe_write_cs4227(struct ixgbe_hw *hw, u16 reg, u16 value)
108 {
109 	return hw->link.ops.write_link_unlocked(hw, hw->link.addr, reg, value);
110 }
111 
112 /**
113  * ixgbe_read_pe - Read register from port expander
114  * @hw: pointer to hardware structure
115  * @reg: register number to read
116  * @value: pointer to receive read value
117  *
118  * Returns status code
119  */
120 static s32 ixgbe_read_pe(struct ixgbe_hw *hw, u8 reg, u8 *value)
121 {
122 	s32 status;
123 
124 	status = ixgbe_read_i2c_byte_generic_unlocked(hw, reg, IXGBE_PE, value);
125 	if (status)
126 		hw_err(hw, "port expander access failed with %d\n", status);
127 	return status;
128 }
129 
130 /**
131  * ixgbe_write_pe - Write register to port expander
132  * @hw: pointer to hardware structure
133  * @reg: register number to write
134  * @value: value to write
135  *
136  * Returns status code
137  */
138 static s32 ixgbe_write_pe(struct ixgbe_hw *hw, u8 reg, u8 value)
139 {
140 	s32 status;
141 
142 	status = ixgbe_write_i2c_byte_generic_unlocked(hw, reg, IXGBE_PE,
143 						       value);
144 	if (status)
145 		hw_err(hw, "port expander access failed with %d\n", status);
146 	return status;
147 }
148 
149 /**
150  * ixgbe_reset_cs4227 - Reset CS4227 using port expander
151  * @hw: pointer to hardware structure
152  *
153  * This function assumes that the caller has acquired the proper semaphore.
154  * Returns error code
155  */
156 static s32 ixgbe_reset_cs4227(struct ixgbe_hw *hw)
157 {
158 	s32 status;
159 	u32 retry;
160 	u16 value;
161 	u8 reg;
162 
163 	/* Trigger hard reset. */
164 	status = ixgbe_read_pe(hw, IXGBE_PE_OUTPUT, &reg);
165 	if (status)
166 		return status;
167 	reg |= IXGBE_PE_BIT1;
168 	status = ixgbe_write_pe(hw, IXGBE_PE_OUTPUT, reg);
169 	if (status)
170 		return status;
171 
172 	status = ixgbe_read_pe(hw, IXGBE_PE_CONFIG, &reg);
173 	if (status)
174 		return status;
175 	reg &= ~IXGBE_PE_BIT1;
176 	status = ixgbe_write_pe(hw, IXGBE_PE_CONFIG, reg);
177 	if (status)
178 		return status;
179 
180 	status = ixgbe_read_pe(hw, IXGBE_PE_OUTPUT, &reg);
181 	if (status)
182 		return status;
183 	reg &= ~IXGBE_PE_BIT1;
184 	status = ixgbe_write_pe(hw, IXGBE_PE_OUTPUT, reg);
185 	if (status)
186 		return status;
187 
188 	usleep_range(IXGBE_CS4227_RESET_HOLD, IXGBE_CS4227_RESET_HOLD + 100);
189 
190 	status = ixgbe_read_pe(hw, IXGBE_PE_OUTPUT, &reg);
191 	if (status)
192 		return status;
193 	reg |= IXGBE_PE_BIT1;
194 	status = ixgbe_write_pe(hw, IXGBE_PE_OUTPUT, reg);
195 	if (status)
196 		return status;
197 
198 	/* Wait for the reset to complete. */
199 	msleep(IXGBE_CS4227_RESET_DELAY);
200 	for (retry = 0; retry < IXGBE_CS4227_RETRIES; retry++) {
201 		status = ixgbe_read_cs4227(hw, IXGBE_CS4227_EFUSE_STATUS,
202 					   &value);
203 		if (!status && value == IXGBE_CS4227_EEPROM_LOAD_OK)
204 			break;
205 		msleep(IXGBE_CS4227_CHECK_DELAY);
206 	}
207 	if (retry == IXGBE_CS4227_RETRIES) {
208 		hw_err(hw, "CS4227 reset did not complete\n");
209 		return -EIO;
210 	}
211 
212 	status = ixgbe_read_cs4227(hw, IXGBE_CS4227_EEPROM_STATUS, &value);
213 	if (status || !(value & IXGBE_CS4227_EEPROM_LOAD_OK)) {
214 		hw_err(hw, "CS4227 EEPROM did not load successfully\n");
215 		return -EIO;
216 	}
217 
218 	return 0;
219 }
220 
221 /**
222  * ixgbe_check_cs4227 - Check CS4227 and reset as needed
223  * @hw: pointer to hardware structure
224  */
225 static void ixgbe_check_cs4227(struct ixgbe_hw *hw)
226 {
227 	u32 swfw_mask = hw->phy.phy_semaphore_mask;
228 	s32 status;
229 	u16 value;
230 	u8 retry;
231 
232 	for (retry = 0; retry < IXGBE_CS4227_RETRIES; retry++) {
233 		status = hw->mac.ops.acquire_swfw_sync(hw, swfw_mask);
234 		if (status) {
235 			hw_err(hw, "semaphore failed with %d\n", status);
236 			msleep(IXGBE_CS4227_CHECK_DELAY);
237 			continue;
238 		}
239 
240 		/* Get status of reset flow. */
241 		status = ixgbe_read_cs4227(hw, IXGBE_CS4227_SCRATCH, &value);
242 		if (!status && value == IXGBE_CS4227_RESET_COMPLETE)
243 			goto out;
244 
245 		if (status || value != IXGBE_CS4227_RESET_PENDING)
246 			break;
247 
248 		/* Reset is pending. Wait and check again. */
249 		hw->mac.ops.release_swfw_sync(hw, swfw_mask);
250 		msleep(IXGBE_CS4227_CHECK_DELAY);
251 	}
252 	/* If still pending, assume other instance failed. */
253 	if (retry == IXGBE_CS4227_RETRIES) {
254 		status = hw->mac.ops.acquire_swfw_sync(hw, swfw_mask);
255 		if (status) {
256 			hw_err(hw, "semaphore failed with %d\n", status);
257 			return;
258 		}
259 	}
260 
261 	/* Reset the CS4227. */
262 	status = ixgbe_reset_cs4227(hw);
263 	if (status) {
264 		hw_err(hw, "CS4227 reset failed: %d", status);
265 		goto out;
266 	}
267 
268 	/* Reset takes so long, temporarily release semaphore in case the
269 	 * other driver instance is waiting for the reset indication.
270 	 */
271 	ixgbe_write_cs4227(hw, IXGBE_CS4227_SCRATCH,
272 			   IXGBE_CS4227_RESET_PENDING);
273 	hw->mac.ops.release_swfw_sync(hw, swfw_mask);
274 	usleep_range(10000, 12000);
275 	status = hw->mac.ops.acquire_swfw_sync(hw, swfw_mask);
276 	if (status) {
277 		hw_err(hw, "semaphore failed with %d", status);
278 		return;
279 	}
280 
281 	/* Record completion for next time. */
282 	status = ixgbe_write_cs4227(hw, IXGBE_CS4227_SCRATCH,
283 				    IXGBE_CS4227_RESET_COMPLETE);
284 
285 out:
286 	hw->mac.ops.release_swfw_sync(hw, swfw_mask);
287 	msleep(hw->eeprom.semaphore_delay);
288 }
289 
290 /** ixgbe_identify_phy_x550em - Get PHY type based on device id
291  *  @hw: pointer to hardware structure
292  *
293  *  Returns error code
294  */
295 static s32 ixgbe_identify_phy_x550em(struct ixgbe_hw *hw)
296 {
297 	switch (hw->device_id) {
298 	case IXGBE_DEV_ID_X550EM_A_SFP:
299 		if (hw->bus.lan_id)
300 			hw->phy.phy_semaphore_mask = IXGBE_GSSR_PHY1_SM;
301 		else
302 			hw->phy.phy_semaphore_mask = IXGBE_GSSR_PHY0_SM;
303 		return ixgbe_identify_module_generic(hw);
304 	case IXGBE_DEV_ID_X550EM_X_SFP:
305 		/* set up for CS4227 usage */
306 		hw->phy.phy_semaphore_mask = IXGBE_GSSR_SHARED_I2C_SM;
307 		ixgbe_setup_mux_ctl(hw);
308 		ixgbe_check_cs4227(hw);
309 		fallthrough;
310 	case IXGBE_DEV_ID_X550EM_A_SFP_N:
311 		return ixgbe_identify_module_generic(hw);
312 	case IXGBE_DEV_ID_X550EM_X_KX4:
313 		hw->phy.type = ixgbe_phy_x550em_kx4;
314 		break;
315 	case IXGBE_DEV_ID_X550EM_X_XFI:
316 		hw->phy.type = ixgbe_phy_x550em_xfi;
317 		break;
318 	case IXGBE_DEV_ID_X550EM_X_KR:
319 	case IXGBE_DEV_ID_X550EM_A_KR:
320 	case IXGBE_DEV_ID_X550EM_A_KR_L:
321 		hw->phy.type = ixgbe_phy_x550em_kr;
322 		break;
323 	case IXGBE_DEV_ID_X550EM_A_10G_T:
324 		if (hw->bus.lan_id)
325 			hw->phy.phy_semaphore_mask = IXGBE_GSSR_PHY1_SM;
326 		else
327 			hw->phy.phy_semaphore_mask = IXGBE_GSSR_PHY0_SM;
328 		fallthrough;
329 	case IXGBE_DEV_ID_X550EM_X_10G_T:
330 		return ixgbe_identify_phy_generic(hw);
331 	case IXGBE_DEV_ID_X550EM_X_1G_T:
332 		hw->phy.type = ixgbe_phy_ext_1g_t;
333 		break;
334 	case IXGBE_DEV_ID_X550EM_A_1G_T:
335 	case IXGBE_DEV_ID_X550EM_A_1G_T_L:
336 		hw->phy.type = ixgbe_phy_fw;
337 		hw->phy.ops.read_reg = NULL;
338 		hw->phy.ops.write_reg = NULL;
339 		if (hw->bus.lan_id)
340 			hw->phy.phy_semaphore_mask |= IXGBE_GSSR_PHY1_SM;
341 		else
342 			hw->phy.phy_semaphore_mask |= IXGBE_GSSR_PHY0_SM;
343 		break;
344 	default:
345 		break;
346 	}
347 	return 0;
348 }
349 
350 static s32 ixgbe_read_phy_reg_x550em(struct ixgbe_hw *hw, u32 reg_addr,
351 				     u32 device_type, u16 *phy_data)
352 {
353 	return -EOPNOTSUPP;
354 }
355 
356 static s32 ixgbe_write_phy_reg_x550em(struct ixgbe_hw *hw, u32 reg_addr,
357 				      u32 device_type, u16 phy_data)
358 {
359 	return -EOPNOTSUPP;
360 }
361 
362 /**
363  * ixgbe_read_i2c_combined_generic - Perform I2C read combined operation
364  * @hw: pointer to the hardware structure
365  * @addr: I2C bus address to read from
366  * @reg: I2C device register to read from
367  * @val: pointer to location to receive read value
368  *
369  * Returns an error code on error.
370  **/
371 static s32 ixgbe_read_i2c_combined_generic(struct ixgbe_hw *hw, u8 addr,
372 					   u16 reg, u16 *val)
373 {
374 	return ixgbe_read_i2c_combined_generic_int(hw, addr, reg, val, true);
375 }
376 
377 /**
378  * ixgbe_read_i2c_combined_generic_unlocked - Do I2C read combined operation
379  * @hw: pointer to the hardware structure
380  * @addr: I2C bus address to read from
381  * @reg: I2C device register to read from
382  * @val: pointer to location to receive read value
383  *
384  * Returns an error code on error.
385  **/
386 static s32
387 ixgbe_read_i2c_combined_generic_unlocked(struct ixgbe_hw *hw, u8 addr,
388 					 u16 reg, u16 *val)
389 {
390 	return ixgbe_read_i2c_combined_generic_int(hw, addr, reg, val, false);
391 }
392 
393 /**
394  * ixgbe_write_i2c_combined_generic - Perform I2C write combined operation
395  * @hw: pointer to the hardware structure
396  * @addr: I2C bus address to write to
397  * @reg: I2C device register to write to
398  * @val: value to write
399  *
400  * Returns an error code on error.
401  **/
402 static s32 ixgbe_write_i2c_combined_generic(struct ixgbe_hw *hw,
403 					    u8 addr, u16 reg, u16 val)
404 {
405 	return ixgbe_write_i2c_combined_generic_int(hw, addr, reg, val, true);
406 }
407 
408 /**
409  * ixgbe_write_i2c_combined_generic_unlocked - Do I2C write combined operation
410  * @hw: pointer to the hardware structure
411  * @addr: I2C bus address to write to
412  * @reg: I2C device register to write to
413  * @val: value to write
414  *
415  * Returns an error code on error.
416  **/
417 static s32
418 ixgbe_write_i2c_combined_generic_unlocked(struct ixgbe_hw *hw,
419 					  u8 addr, u16 reg, u16 val)
420 {
421 	return ixgbe_write_i2c_combined_generic_int(hw, addr, reg, val, false);
422 }
423 
424 /**
425  * ixgbe_fw_phy_activity - Perform an activity on a PHY
426  * @hw: pointer to hardware structure
427  * @activity: activity to perform
428  * @data: Pointer to 4 32-bit words of data
429  */
430 s32 ixgbe_fw_phy_activity(struct ixgbe_hw *hw, u16 activity,
431 			  u32 (*data)[FW_PHY_ACT_DATA_COUNT])
432 {
433 	union {
434 		struct ixgbe_hic_phy_activity_req cmd;
435 		struct ixgbe_hic_phy_activity_resp rsp;
436 	} hic;
437 	u16 retries = FW_PHY_ACT_RETRIES;
438 	s32 rc;
439 	u32 i;
440 
441 	do {
442 		memset(&hic, 0, sizeof(hic));
443 		hic.cmd.hdr.cmd = FW_PHY_ACT_REQ_CMD;
444 		hic.cmd.hdr.buf_len = FW_PHY_ACT_REQ_LEN;
445 		hic.cmd.hdr.checksum = FW_DEFAULT_CHECKSUM;
446 		hic.cmd.port_number = hw->bus.lan_id;
447 		hic.cmd.activity_id = cpu_to_le16(activity);
448 		for (i = 0; i < ARRAY_SIZE(hic.cmd.data); ++i)
449 			hic.cmd.data[i] = cpu_to_be32((*data)[i]);
450 
451 		rc = ixgbe_host_interface_command(hw, &hic.cmd, sizeof(hic.cmd),
452 						  IXGBE_HI_COMMAND_TIMEOUT,
453 						  true);
454 		if (rc)
455 			return rc;
456 		if (hic.rsp.hdr.cmd_or_resp.ret_status ==
457 		    FW_CEM_RESP_STATUS_SUCCESS) {
458 			for (i = 0; i < FW_PHY_ACT_DATA_COUNT; ++i)
459 				(*data)[i] = be32_to_cpu(hic.rsp.data[i]);
460 			return 0;
461 		}
462 		usleep_range(20, 30);
463 		--retries;
464 	} while (retries > 0);
465 
466 	return -EIO;
467 }
468 
469 static const struct {
470 	u16 fw_speed;
471 	ixgbe_link_speed phy_speed;
472 } ixgbe_fw_map[] = {
473 	{ FW_PHY_ACT_LINK_SPEED_10, IXGBE_LINK_SPEED_10_FULL },
474 	{ FW_PHY_ACT_LINK_SPEED_100, IXGBE_LINK_SPEED_100_FULL },
475 	{ FW_PHY_ACT_LINK_SPEED_1G, IXGBE_LINK_SPEED_1GB_FULL },
476 	{ FW_PHY_ACT_LINK_SPEED_2_5G, IXGBE_LINK_SPEED_2_5GB_FULL },
477 	{ FW_PHY_ACT_LINK_SPEED_5G, IXGBE_LINK_SPEED_5GB_FULL },
478 	{ FW_PHY_ACT_LINK_SPEED_10G, IXGBE_LINK_SPEED_10GB_FULL },
479 };
480 
481 /**
482  * ixgbe_get_phy_id_fw - Get the phy ID via firmware command
483  * @hw: pointer to hardware structure
484  *
485  * Returns error code
486  */
487 static s32 ixgbe_get_phy_id_fw(struct ixgbe_hw *hw)
488 {
489 	u32 info[FW_PHY_ACT_DATA_COUNT] = { 0 };
490 	u16 phy_speeds;
491 	u16 phy_id_lo;
492 	s32 rc;
493 	u16 i;
494 
495 	if (hw->phy.id)
496 		return 0;
497 
498 	rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_GET_PHY_INFO, &info);
499 	if (rc)
500 		return rc;
501 
502 	hw->phy.speeds_supported = 0;
503 	phy_speeds = info[0] & FW_PHY_INFO_SPEED_MASK;
504 	for (i = 0; i < ARRAY_SIZE(ixgbe_fw_map); ++i) {
505 		if (phy_speeds & ixgbe_fw_map[i].fw_speed)
506 			hw->phy.speeds_supported |= ixgbe_fw_map[i].phy_speed;
507 	}
508 
509 	hw->phy.id = info[0] & FW_PHY_INFO_ID_HI_MASK;
510 	phy_id_lo = info[1] & FW_PHY_INFO_ID_LO_MASK;
511 	hw->phy.id |= phy_id_lo & IXGBE_PHY_REVISION_MASK;
512 	hw->phy.revision = phy_id_lo & ~IXGBE_PHY_REVISION_MASK;
513 	if (!hw->phy.id || hw->phy.id == IXGBE_PHY_REVISION_MASK)
514 		return -EFAULT;
515 
516 	hw->phy.autoneg_advertised = hw->phy.speeds_supported;
517 	hw->phy.eee_speeds_supported = IXGBE_LINK_SPEED_100_FULL |
518 				       IXGBE_LINK_SPEED_1GB_FULL;
519 	hw->phy.eee_speeds_advertised = hw->phy.eee_speeds_supported;
520 	return 0;
521 }
522 
523 /**
524  * ixgbe_identify_phy_fw - Get PHY type based on firmware command
525  * @hw: pointer to hardware structure
526  *
527  * Returns error code
528  */
529 static s32 ixgbe_identify_phy_fw(struct ixgbe_hw *hw)
530 {
531 	if (hw->bus.lan_id)
532 		hw->phy.phy_semaphore_mask = IXGBE_GSSR_PHY1_SM;
533 	else
534 		hw->phy.phy_semaphore_mask = IXGBE_GSSR_PHY0_SM;
535 
536 	hw->phy.type = ixgbe_phy_fw;
537 	hw->phy.ops.read_reg = NULL;
538 	hw->phy.ops.write_reg = NULL;
539 	return ixgbe_get_phy_id_fw(hw);
540 }
541 
542 /**
543  * ixgbe_shutdown_fw_phy - Shutdown a firmware-controlled PHY
544  * @hw: pointer to hardware structure
545  *
546  * Returns error code
547  */
548 static s32 ixgbe_shutdown_fw_phy(struct ixgbe_hw *hw)
549 {
550 	u32 setup[FW_PHY_ACT_DATA_COUNT] = { 0 };
551 
552 	setup[0] = FW_PHY_ACT_FORCE_LINK_DOWN_OFF;
553 	return ixgbe_fw_phy_activity(hw, FW_PHY_ACT_FORCE_LINK_DOWN, &setup);
554 }
555 
556 /**
557  * ixgbe_setup_fw_link - Setup firmware-controlled PHYs
558  * @hw: pointer to hardware structure
559  */
560 static s32 ixgbe_setup_fw_link(struct ixgbe_hw *hw)
561 {
562 	u32 setup[FW_PHY_ACT_DATA_COUNT] = { 0 };
563 	s32 rc;
564 	u16 i;
565 
566 	if (hw->phy.reset_disable || ixgbe_check_reset_blocked(hw))
567 		return 0;
568 
569 	if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
570 		hw_err(hw, "rx_pause not valid in strict IEEE mode\n");
571 		return -EINVAL;
572 	}
573 
574 	switch (hw->fc.requested_mode) {
575 	case ixgbe_fc_full:
576 		setup[0] |= FW_PHY_ACT_SETUP_LINK_PAUSE_RXTX <<
577 			    FW_PHY_ACT_SETUP_LINK_PAUSE_SHIFT;
578 		break;
579 	case ixgbe_fc_rx_pause:
580 		setup[0] |= FW_PHY_ACT_SETUP_LINK_PAUSE_RX <<
581 			    FW_PHY_ACT_SETUP_LINK_PAUSE_SHIFT;
582 		break;
583 	case ixgbe_fc_tx_pause:
584 		setup[0] |= FW_PHY_ACT_SETUP_LINK_PAUSE_TX <<
585 			    FW_PHY_ACT_SETUP_LINK_PAUSE_SHIFT;
586 		break;
587 	default:
588 		break;
589 	}
590 
591 	for (i = 0; i < ARRAY_SIZE(ixgbe_fw_map); ++i) {
592 		if (hw->phy.autoneg_advertised & ixgbe_fw_map[i].phy_speed)
593 			setup[0] |= ixgbe_fw_map[i].fw_speed;
594 	}
595 	setup[0] |= FW_PHY_ACT_SETUP_LINK_HP | FW_PHY_ACT_SETUP_LINK_AN;
596 
597 	if (hw->phy.eee_speeds_advertised)
598 		setup[0] |= FW_PHY_ACT_SETUP_LINK_EEE;
599 
600 	rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_SETUP_LINK, &setup);
601 	if (rc)
602 		return rc;
603 
604 	if (setup[0] == FW_PHY_ACT_SETUP_LINK_RSP_DOWN)
605 		return -EIO;
606 
607 	return 0;
608 }
609 
610 /**
611  * ixgbe_fc_autoneg_fw - Set up flow control for FW-controlled PHYs
612  * @hw: pointer to hardware structure
613  *
614  * Called at init time to set up flow control.
615  */
616 static s32 ixgbe_fc_autoneg_fw(struct ixgbe_hw *hw)
617 {
618 	if (hw->fc.requested_mode == ixgbe_fc_default)
619 		hw->fc.requested_mode = ixgbe_fc_full;
620 
621 	return ixgbe_setup_fw_link(hw);
622 }
623 
624 /** ixgbe_init_eeprom_params_X550 - Initialize EEPROM params
625  *  @hw: pointer to hardware structure
626  *
627  *  Initializes the EEPROM parameters ixgbe_eeprom_info within the
628  *  ixgbe_hw struct in order to set up EEPROM access.
629  **/
630 static s32 ixgbe_init_eeprom_params_X550(struct ixgbe_hw *hw)
631 {
632 	struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
633 
634 	if (eeprom->type == ixgbe_eeprom_uninitialized) {
635 		u16 eeprom_size;
636 		u32 eec;
637 
638 		eeprom->semaphore_delay = 10;
639 		eeprom->type = ixgbe_flash;
640 
641 		eec = IXGBE_READ_REG(hw, IXGBE_EEC(hw));
642 		eeprom_size = FIELD_GET(IXGBE_EEC_SIZE, eec);
643 		eeprom->word_size = BIT(eeprom_size +
644 					IXGBE_EEPROM_WORD_SIZE_SHIFT);
645 
646 		hw_dbg(hw, "Eeprom params: type = %d, size = %d\n",
647 		       eeprom->type, eeprom->word_size);
648 	}
649 
650 	return 0;
651 }
652 
653 /**
654  * ixgbe_iosf_wait - Wait for IOSF command completion
655  * @hw: pointer to hardware structure
656  * @ctrl: pointer to location to receive final IOSF control value
657  *
658  * Return: failing status on timeout
659  *
660  * Note: ctrl can be NULL if the IOSF control register value is not needed
661  */
662 static s32 ixgbe_iosf_wait(struct ixgbe_hw *hw, u32 *ctrl)
663 {
664 	u32 i, command;
665 
666 	/* Check every 10 usec to see if the address cycle completed.
667 	 * The SB IOSF BUSY bit will clear when the operation is
668 	 * complete.
669 	 */
670 	for (i = 0; i < IXGBE_MDIO_COMMAND_TIMEOUT; i++) {
671 		command = IXGBE_READ_REG(hw, IXGBE_SB_IOSF_INDIRECT_CTRL);
672 		if (!(command & IXGBE_SB_IOSF_CTRL_BUSY))
673 			break;
674 		udelay(10);
675 	}
676 	if (ctrl)
677 		*ctrl = command;
678 	if (i == IXGBE_MDIO_COMMAND_TIMEOUT) {
679 		hw_dbg(hw, "IOSF wait timed out\n");
680 		return -EIO;
681 	}
682 
683 	return 0;
684 }
685 
686 /** ixgbe_read_iosf_sb_reg_x550 - Writes a value to specified register of the
687  *  IOSF device
688  *  @hw: pointer to hardware structure
689  *  @reg_addr: 32 bit PHY register to write
690  *  @device_type: 3 bit device type
691  *  @phy_data: Pointer to read data from the register
692  **/
693 static s32 ixgbe_read_iosf_sb_reg_x550(struct ixgbe_hw *hw, u32 reg_addr,
694 				       u32 device_type, u32 *data)
695 {
696 	u32 gssr = IXGBE_GSSR_PHY1_SM | IXGBE_GSSR_PHY0_SM;
697 	u32 command, error;
698 	s32 ret;
699 
700 	ret = hw->mac.ops.acquire_swfw_sync(hw, gssr);
701 	if (ret)
702 		return ret;
703 
704 	ret = ixgbe_iosf_wait(hw, NULL);
705 	if (ret)
706 		goto out;
707 
708 	command = ((reg_addr << IXGBE_SB_IOSF_CTRL_ADDR_SHIFT) |
709 		   (device_type << IXGBE_SB_IOSF_CTRL_TARGET_SELECT_SHIFT));
710 
711 	/* Write IOSF control register */
712 	IXGBE_WRITE_REG(hw, IXGBE_SB_IOSF_INDIRECT_CTRL, command);
713 
714 	ret = ixgbe_iosf_wait(hw, &command);
715 
716 	if ((command & IXGBE_SB_IOSF_CTRL_RESP_STAT_MASK) != 0) {
717 		error = FIELD_GET(IXGBE_SB_IOSF_CTRL_CMPL_ERR_MASK, command);
718 		hw_dbg(hw, "Failed to read, error %x\n", error);
719 		ret = -EIO;
720 		goto out;
721 	}
722 
723 	if (!ret)
724 		*data = IXGBE_READ_REG(hw, IXGBE_SB_IOSF_INDIRECT_DATA);
725 
726 out:
727 	hw->mac.ops.release_swfw_sync(hw, gssr);
728 	return ret;
729 }
730 
731 /**
732  * ixgbe_get_phy_token - Get the token for shared PHY access
733  * @hw: Pointer to hardware structure
734  */
735 static s32 ixgbe_get_phy_token(struct ixgbe_hw *hw)
736 {
737 	struct ixgbe_hic_phy_token_req token_cmd;
738 	s32 status;
739 
740 	token_cmd.hdr.cmd = FW_PHY_TOKEN_REQ_CMD;
741 	token_cmd.hdr.buf_len = FW_PHY_TOKEN_REQ_LEN;
742 	token_cmd.hdr.cmd_or_resp.cmd_resv = 0;
743 	token_cmd.hdr.checksum = FW_DEFAULT_CHECKSUM;
744 	token_cmd.port_number = hw->bus.lan_id;
745 	token_cmd.command_type = FW_PHY_TOKEN_REQ;
746 	token_cmd.pad = 0;
747 	status = ixgbe_host_interface_command(hw, &token_cmd, sizeof(token_cmd),
748 					      IXGBE_HI_COMMAND_TIMEOUT,
749 					      true);
750 	if (status)
751 		return status;
752 	if (token_cmd.hdr.cmd_or_resp.ret_status == FW_PHY_TOKEN_OK)
753 		return 0;
754 	if (token_cmd.hdr.cmd_or_resp.ret_status != FW_PHY_TOKEN_RETRY)
755 		return -EIO;
756 
757 	return -EAGAIN;
758 }
759 
760 /**
761  * ixgbe_put_phy_token - Put the token for shared PHY access
762  * @hw: Pointer to hardware structure
763  */
764 static s32 ixgbe_put_phy_token(struct ixgbe_hw *hw)
765 {
766 	struct ixgbe_hic_phy_token_req token_cmd;
767 	s32 status;
768 
769 	token_cmd.hdr.cmd = FW_PHY_TOKEN_REQ_CMD;
770 	token_cmd.hdr.buf_len = FW_PHY_TOKEN_REQ_LEN;
771 	token_cmd.hdr.cmd_or_resp.cmd_resv = 0;
772 	token_cmd.hdr.checksum = FW_DEFAULT_CHECKSUM;
773 	token_cmd.port_number = hw->bus.lan_id;
774 	token_cmd.command_type = FW_PHY_TOKEN_REL;
775 	token_cmd.pad = 0;
776 	status = ixgbe_host_interface_command(hw, &token_cmd, sizeof(token_cmd),
777 					      IXGBE_HI_COMMAND_TIMEOUT,
778 					      true);
779 	if (status)
780 		return status;
781 	if (token_cmd.hdr.cmd_or_resp.ret_status == FW_PHY_TOKEN_OK)
782 		return 0;
783 	return -EIO;
784 }
785 
786 /**
787  *  ixgbe_write_iosf_sb_reg_x550a - Write to IOSF PHY register
788  *  @hw: pointer to hardware structure
789  *  @reg_addr: 32 bit PHY register to write
790  *  @device_type: 3 bit device type
791  *  @data: Data to write to the register
792  **/
793 static s32 ixgbe_write_iosf_sb_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr,
794 					 __always_unused u32 device_type,
795 					 u32 data)
796 {
797 	struct ixgbe_hic_internal_phy_req write_cmd;
798 
799 	memset(&write_cmd, 0, sizeof(write_cmd));
800 	write_cmd.hdr.cmd = FW_INT_PHY_REQ_CMD;
801 	write_cmd.hdr.buf_len = FW_INT_PHY_REQ_LEN;
802 	write_cmd.hdr.checksum = FW_DEFAULT_CHECKSUM;
803 	write_cmd.port_number = hw->bus.lan_id;
804 	write_cmd.command_type = FW_INT_PHY_REQ_WRITE;
805 	write_cmd.address = cpu_to_be16(reg_addr);
806 	write_cmd.write_data = cpu_to_be32(data);
807 
808 	return ixgbe_host_interface_command(hw, &write_cmd, sizeof(write_cmd),
809 					    IXGBE_HI_COMMAND_TIMEOUT, false);
810 }
811 
812 /**
813  *  ixgbe_read_iosf_sb_reg_x550a - Read from IOSF PHY register
814  *  @hw: pointer to hardware structure
815  *  @reg_addr: 32 bit PHY register to write
816  *  @device_type: 3 bit device type
817  *  @data: Pointer to read data from the register
818  **/
819 static s32 ixgbe_read_iosf_sb_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr,
820 					__always_unused u32 device_type,
821 					u32 *data)
822 {
823 	union {
824 		struct ixgbe_hic_internal_phy_req cmd;
825 		struct ixgbe_hic_internal_phy_resp rsp;
826 	} hic;
827 	s32 status;
828 
829 	memset(&hic, 0, sizeof(hic));
830 	hic.cmd.hdr.cmd = FW_INT_PHY_REQ_CMD;
831 	hic.cmd.hdr.buf_len = FW_INT_PHY_REQ_LEN;
832 	hic.cmd.hdr.checksum = FW_DEFAULT_CHECKSUM;
833 	hic.cmd.port_number = hw->bus.lan_id;
834 	hic.cmd.command_type = FW_INT_PHY_REQ_READ;
835 	hic.cmd.address = cpu_to_be16(reg_addr);
836 
837 	status = ixgbe_host_interface_command(hw, &hic.cmd, sizeof(hic.cmd),
838 					      IXGBE_HI_COMMAND_TIMEOUT, true);
839 
840 	/* Extract the register value from the response. */
841 	*data = be32_to_cpu(hic.rsp.read_data);
842 
843 	return status;
844 }
845 
846 /** ixgbe_read_ee_hostif_buffer_X550- Read EEPROM word(s) using hostif
847  *  @hw: pointer to hardware structure
848  *  @offset: offset of  word in the EEPROM to read
849  *  @words: number of words
850  *  @data: word(s) read from the EEPROM
851  *
852  *  Reads a 16 bit word(s) from the EEPROM using the hostif.
853  **/
854 static s32 ixgbe_read_ee_hostif_buffer_X550(struct ixgbe_hw *hw,
855 					    u16 offset, u16 words, u16 *data)
856 {
857 	const u32 mask = IXGBE_GSSR_SW_MNG_SM | IXGBE_GSSR_EEP_SM;
858 	struct ixgbe_hic_read_shadow_ram buffer;
859 	u32 current_word = 0;
860 	u16 words_to_read;
861 	s32 status;
862 	u32 i;
863 
864 	/* Take semaphore for the entire operation. */
865 	status = hw->mac.ops.acquire_swfw_sync(hw, mask);
866 	if (status) {
867 		hw_dbg(hw, "EEPROM read buffer - semaphore failed\n");
868 		return status;
869 	}
870 
871 	while (words) {
872 		if (words > FW_MAX_READ_BUFFER_SIZE / 2)
873 			words_to_read = FW_MAX_READ_BUFFER_SIZE / 2;
874 		else
875 			words_to_read = words;
876 
877 		buffer.hdr.req.cmd = FW_READ_SHADOW_RAM_CMD;
878 		buffer.hdr.req.buf_lenh = 0;
879 		buffer.hdr.req.buf_lenl = FW_READ_SHADOW_RAM_LEN;
880 		buffer.hdr.req.checksum = FW_DEFAULT_CHECKSUM;
881 
882 		/* convert offset from words to bytes */
883 		buffer.address = (__force u32)cpu_to_be32((offset +
884 							   current_word) * 2);
885 		buffer.length = (__force u16)cpu_to_be16(words_to_read * 2);
886 		buffer.pad2 = 0;
887 		buffer.pad3 = 0;
888 
889 		status = ixgbe_hic_unlocked(hw, (u32 *)&buffer, sizeof(buffer),
890 					    IXGBE_HI_COMMAND_TIMEOUT);
891 		if (status) {
892 			hw_dbg(hw, "Host interface command failed\n");
893 			goto out;
894 		}
895 
896 		for (i = 0; i < words_to_read; i++) {
897 			u32 reg = IXGBE_FLEX_MNG + (FW_NVM_DATA_OFFSET << 2) +
898 				  2 * i;
899 			u32 value = IXGBE_READ_REG(hw, reg);
900 
901 			data[current_word] = (u16)(value & 0xffff);
902 			current_word++;
903 			i++;
904 			if (i < words_to_read) {
905 				value >>= 16;
906 				data[current_word] = (u16)(value & 0xffff);
907 				current_word++;
908 			}
909 		}
910 		words -= words_to_read;
911 	}
912 
913 out:
914 	hw->mac.ops.release_swfw_sync(hw, mask);
915 	return status;
916 }
917 
918 /** ixgbe_checksum_ptr_x550 - Checksum one pointer region
919  *  @hw: pointer to hardware structure
920  *  @ptr: pointer offset in eeprom
921  *  @size: size of section pointed by ptr, if 0 first word will be used as size
922  *  @csum: address of checksum to update
923  *
924  *  Returns error status for any failure
925  **/
926 static s32 ixgbe_checksum_ptr_x550(struct ixgbe_hw *hw, u16 ptr,
927 				   u16 size, u16 *csum, u16 *buffer,
928 				   u32 buffer_size)
929 {
930 	u16 buf[256];
931 	s32 status;
932 	u16 length, bufsz, i, start;
933 	u16 *local_buffer;
934 
935 	bufsz = ARRAY_SIZE(buf);
936 
937 	/* Read a chunk at the pointer location */
938 	if (!buffer) {
939 		status = ixgbe_read_ee_hostif_buffer_X550(hw, ptr, bufsz, buf);
940 		if (status) {
941 			hw_dbg(hw, "Failed to read EEPROM image\n");
942 			return status;
943 		}
944 		local_buffer = buf;
945 	} else {
946 		if (buffer_size < ptr)
947 			return  -EINVAL;
948 		local_buffer = &buffer[ptr];
949 	}
950 
951 	if (size) {
952 		start = 0;
953 		length = size;
954 	} else {
955 		start = 1;
956 		length = local_buffer[0];
957 
958 		/* Skip pointer section if length is invalid. */
959 		if (length == 0xFFFF || length == 0 ||
960 		    (ptr + length) >= hw->eeprom.word_size)
961 			return 0;
962 	}
963 
964 	if (buffer && ((u32)start + (u32)length > buffer_size))
965 		return -EINVAL;
966 
967 	for (i = start; length; i++, length--) {
968 		if (i == bufsz && !buffer) {
969 			ptr += bufsz;
970 			i = 0;
971 			if (length < bufsz)
972 				bufsz = length;
973 
974 			/* Read a chunk at the pointer location */
975 			status = ixgbe_read_ee_hostif_buffer_X550(hw, ptr,
976 								  bufsz, buf);
977 			if (status) {
978 				hw_dbg(hw, "Failed to read EEPROM image\n");
979 				return status;
980 			}
981 		}
982 		*csum += local_buffer[i];
983 	}
984 	return 0;
985 }
986 
987 /** ixgbe_calc_checksum_X550 - Calculates and returns the checksum
988  *  @hw: pointer to hardware structure
989  *  @buffer: pointer to buffer containing calculated checksum
990  *  @buffer_size: size of buffer
991  *
992  *  Returns a negative error code on error, or the 16-bit checksum
993  **/
994 static s32 ixgbe_calc_checksum_X550(struct ixgbe_hw *hw, u16 *buffer,
995 				    u32 buffer_size)
996 {
997 	u16 eeprom_ptrs[IXGBE_EEPROM_LAST_WORD + 1];
998 	u16 *local_buffer;
999 	s32 status;
1000 	u16 checksum = 0;
1001 	u16 pointer, i, size;
1002 
1003 	hw->eeprom.ops.init_params(hw);
1004 
1005 	if (!buffer) {
1006 		/* Read pointer area */
1007 		status = ixgbe_read_ee_hostif_buffer_X550(hw, 0,
1008 						IXGBE_EEPROM_LAST_WORD + 1,
1009 						eeprom_ptrs);
1010 		if (status) {
1011 			hw_dbg(hw, "Failed to read EEPROM image\n");
1012 			return status;
1013 		}
1014 		local_buffer = eeprom_ptrs;
1015 	} else {
1016 		if (buffer_size < IXGBE_EEPROM_LAST_WORD)
1017 			return -EINVAL;
1018 		local_buffer = buffer;
1019 	}
1020 
1021 	/* For X550 hardware include 0x0-0x41 in the checksum, skip the
1022 	 * checksum word itself
1023 	 */
1024 	for (i = 0; i <= IXGBE_EEPROM_LAST_WORD; i++)
1025 		if (i != IXGBE_EEPROM_CHECKSUM)
1026 			checksum += local_buffer[i];
1027 
1028 	/* Include all data from pointers 0x3, 0x6-0xE.  This excludes the
1029 	 * FW, PHY module, and PCIe Expansion/Option ROM pointers.
1030 	 */
1031 	for (i = IXGBE_PCIE_ANALOG_PTR_X550; i < IXGBE_FW_PTR; i++) {
1032 		if (i == IXGBE_PHY_PTR || i == IXGBE_OPTION_ROM_PTR)
1033 			continue;
1034 
1035 		pointer = local_buffer[i];
1036 
1037 		/* Skip pointer section if the pointer is invalid. */
1038 		if (pointer == 0xFFFF || pointer == 0 ||
1039 		    pointer >= hw->eeprom.word_size)
1040 			continue;
1041 
1042 		switch (i) {
1043 		case IXGBE_PCIE_GENERAL_PTR:
1044 			size = IXGBE_IXGBE_PCIE_GENERAL_SIZE;
1045 			break;
1046 		case IXGBE_PCIE_CONFIG0_PTR:
1047 		case IXGBE_PCIE_CONFIG1_PTR:
1048 			size = IXGBE_PCIE_CONFIG_SIZE;
1049 			break;
1050 		default:
1051 			size = 0;
1052 			break;
1053 		}
1054 
1055 		status = ixgbe_checksum_ptr_x550(hw, pointer, size, &checksum,
1056 						 buffer, buffer_size);
1057 		if (status)
1058 			return status;
1059 	}
1060 
1061 	checksum = (u16)IXGBE_EEPROM_SUM - checksum;
1062 
1063 	return (s32)checksum;
1064 }
1065 
1066 /** ixgbe_calc_eeprom_checksum_X550 - Calculates and returns the checksum
1067  *  @hw: pointer to hardware structure
1068  *
1069  *  Returns a negative error code on error, or the 16-bit checksum
1070  **/
1071 static s32 ixgbe_calc_eeprom_checksum_X550(struct ixgbe_hw *hw)
1072 {
1073 	return ixgbe_calc_checksum_X550(hw, NULL, 0);
1074 }
1075 
1076 /** ixgbe_read_ee_hostif_X550 - Read EEPROM word using a host interface command
1077  *  @hw: pointer to hardware structure
1078  *  @offset: offset of  word in the EEPROM to read
1079  *  @data: word read from the EEPROM
1080  *
1081  *   Reads a 16 bit word from the EEPROM using the hostif.
1082  **/
1083 static s32 ixgbe_read_ee_hostif_X550(struct ixgbe_hw *hw, u16 offset, u16 *data)
1084 {
1085 	const u32 mask = IXGBE_GSSR_SW_MNG_SM | IXGBE_GSSR_EEP_SM;
1086 	struct ixgbe_hic_read_shadow_ram buffer;
1087 	s32 status;
1088 
1089 	buffer.hdr.req.cmd = FW_READ_SHADOW_RAM_CMD;
1090 	buffer.hdr.req.buf_lenh = 0;
1091 	buffer.hdr.req.buf_lenl = FW_READ_SHADOW_RAM_LEN;
1092 	buffer.hdr.req.checksum = FW_DEFAULT_CHECKSUM;
1093 
1094 	/* convert offset from words to bytes */
1095 	buffer.address = (__force u32)cpu_to_be32(offset * 2);
1096 	/* one word */
1097 	buffer.length = (__force u16)cpu_to_be16(sizeof(u16));
1098 
1099 	status = hw->mac.ops.acquire_swfw_sync(hw, mask);
1100 	if (status)
1101 		return status;
1102 
1103 	status = ixgbe_hic_unlocked(hw, (u32 *)&buffer, sizeof(buffer),
1104 				    IXGBE_HI_COMMAND_TIMEOUT);
1105 	if (!status) {
1106 		*data = (u16)IXGBE_READ_REG_ARRAY(hw, IXGBE_FLEX_MNG,
1107 						  FW_NVM_DATA_OFFSET);
1108 	}
1109 
1110 	hw->mac.ops.release_swfw_sync(hw, mask);
1111 	return status;
1112 }
1113 
1114 /** ixgbe_validate_eeprom_checksum_X550 - Validate EEPROM checksum
1115  *  @hw: pointer to hardware structure
1116  *  @checksum_val: calculated checksum
1117  *
1118  *  Performs checksum calculation and validates the EEPROM checksum.  If the
1119  *  caller does not need checksum_val, the value can be NULL.
1120  **/
1121 static s32 ixgbe_validate_eeprom_checksum_X550(struct ixgbe_hw *hw,
1122 					       u16 *checksum_val)
1123 {
1124 	s32 status;
1125 	u16 checksum;
1126 	u16 read_checksum = 0;
1127 
1128 	/* Read the first word from the EEPROM. If this times out or fails, do
1129 	 * not continue or we could be in for a very long wait while every
1130 	 * EEPROM read fails
1131 	 */
1132 	status = hw->eeprom.ops.read(hw, 0, &checksum);
1133 	if (status) {
1134 		hw_dbg(hw, "EEPROM read failed\n");
1135 		return status;
1136 	}
1137 
1138 	status = hw->eeprom.ops.calc_checksum(hw);
1139 	if (status < 0)
1140 		return status;
1141 
1142 	checksum = (u16)(status & 0xffff);
1143 
1144 	status = ixgbe_read_ee_hostif_X550(hw, IXGBE_EEPROM_CHECKSUM,
1145 					   &read_checksum);
1146 	if (status)
1147 		return status;
1148 
1149 	/* Verify read checksum from EEPROM is the same as
1150 	 * calculated checksum
1151 	 */
1152 	if (read_checksum != checksum) {
1153 		status = -EIO;
1154 		hw_dbg(hw, "Invalid EEPROM checksum");
1155 	}
1156 
1157 	/* If the user cares, return the calculated checksum */
1158 	if (checksum_val)
1159 		*checksum_val = checksum;
1160 
1161 	return status;
1162 }
1163 
1164 /** ixgbe_write_ee_hostif_X550 - Write EEPROM word using hostif
1165  *  @hw: pointer to hardware structure
1166  *  @offset: offset of  word in the EEPROM to write
1167  *  @data: word write to the EEPROM
1168  *
1169  *  Write a 16 bit word to the EEPROM using the hostif.
1170  **/
1171 static s32 ixgbe_write_ee_hostif_data_X550(struct ixgbe_hw *hw, u16 offset,
1172 					   u16 data)
1173 {
1174 	s32 status;
1175 	struct ixgbe_hic_write_shadow_ram buffer;
1176 
1177 	buffer.hdr.req.cmd = FW_WRITE_SHADOW_RAM_CMD;
1178 	buffer.hdr.req.buf_lenh = 0;
1179 	buffer.hdr.req.buf_lenl = FW_WRITE_SHADOW_RAM_LEN;
1180 	buffer.hdr.req.checksum = FW_DEFAULT_CHECKSUM;
1181 
1182 	/* one word */
1183 	buffer.length = cpu_to_be16(sizeof(u16));
1184 	buffer.data = data;
1185 	buffer.address = cpu_to_be32(offset * 2);
1186 
1187 	status = ixgbe_host_interface_command(hw, &buffer, sizeof(buffer),
1188 					      IXGBE_HI_COMMAND_TIMEOUT, false);
1189 	return status;
1190 }
1191 
1192 /** ixgbe_write_ee_hostif_X550 - Write EEPROM word using hostif
1193  *  @hw: pointer to hardware structure
1194  *  @offset: offset of  word in the EEPROM to write
1195  *  @data: word write to the EEPROM
1196  *
1197  *  Write a 16 bit word to the EEPROM using the hostif.
1198  **/
1199 static s32 ixgbe_write_ee_hostif_X550(struct ixgbe_hw *hw, u16 offset, u16 data)
1200 {
1201 	s32 status = 0;
1202 
1203 	if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM) == 0) {
1204 		status = ixgbe_write_ee_hostif_data_X550(hw, offset, data);
1205 		hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
1206 	} else {
1207 		hw_dbg(hw, "write ee hostif failed to get semaphore");
1208 		status = -EBUSY;
1209 	}
1210 
1211 	return status;
1212 }
1213 
1214 /** ixgbe_update_flash_X550 - Instruct HW to copy EEPROM to Flash device
1215  *  @hw: pointer to hardware structure
1216  *
1217  *  Issue a shadow RAM dump to FW to copy EEPROM from shadow RAM to the flash.
1218  **/
1219 static s32 ixgbe_update_flash_X550(struct ixgbe_hw *hw)
1220 {
1221 	s32 status = 0;
1222 	union ixgbe_hic_hdr2 buffer;
1223 
1224 	buffer.req.cmd = FW_SHADOW_RAM_DUMP_CMD;
1225 	buffer.req.buf_lenh = 0;
1226 	buffer.req.buf_lenl = FW_SHADOW_RAM_DUMP_LEN;
1227 	buffer.req.checksum = FW_DEFAULT_CHECKSUM;
1228 
1229 	status = ixgbe_host_interface_command(hw, &buffer, sizeof(buffer),
1230 					      IXGBE_HI_COMMAND_TIMEOUT, false);
1231 	return status;
1232 }
1233 
1234 /**
1235  * ixgbe_get_bus_info_X550em - Set PCI bus info
1236  * @hw: pointer to hardware structure
1237  *
1238  * Sets bus link width and speed to unknown because X550em is
1239  * not a PCI device.
1240  **/
1241 static s32 ixgbe_get_bus_info_X550em(struct ixgbe_hw *hw)
1242 {
1243 	hw->bus.type  = ixgbe_bus_type_internal;
1244 	hw->bus.width = ixgbe_bus_width_unknown;
1245 	hw->bus.speed = ixgbe_bus_speed_unknown;
1246 
1247 	hw->mac.ops.set_lan_id(hw);
1248 
1249 	return 0;
1250 }
1251 
1252 /**
1253  * ixgbe_fw_recovery_mode_X550 - Check FW NVM recovery mode
1254  * @hw: pointer t hardware structure
1255  *
1256  * Returns true if in FW NVM recovery mode.
1257  */
1258 static bool ixgbe_fw_recovery_mode_X550(struct ixgbe_hw *hw)
1259 {
1260 	u32 fwsm;
1261 
1262 	fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM(hw));
1263 	return !!(fwsm & IXGBE_FWSM_FW_NVM_RECOVERY_MODE);
1264 }
1265 
1266 /** ixgbe_disable_rx_x550 - Disable RX unit
1267  *
1268  *  Enables the Rx DMA unit for x550
1269  **/
1270 static void ixgbe_disable_rx_x550(struct ixgbe_hw *hw)
1271 {
1272 	u32 rxctrl, pfdtxgswc;
1273 	s32 status;
1274 	struct ixgbe_hic_disable_rxen fw_cmd;
1275 
1276 	rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
1277 	if (rxctrl & IXGBE_RXCTRL_RXEN) {
1278 		pfdtxgswc = IXGBE_READ_REG(hw, IXGBE_PFDTXGSWC);
1279 		if (pfdtxgswc & IXGBE_PFDTXGSWC_VT_LBEN) {
1280 			pfdtxgswc &= ~IXGBE_PFDTXGSWC_VT_LBEN;
1281 			IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, pfdtxgswc);
1282 			hw->mac.set_lben = true;
1283 		} else {
1284 			hw->mac.set_lben = false;
1285 		}
1286 
1287 		fw_cmd.hdr.cmd = FW_DISABLE_RXEN_CMD;
1288 		fw_cmd.hdr.buf_len = FW_DISABLE_RXEN_LEN;
1289 		fw_cmd.hdr.checksum = FW_DEFAULT_CHECKSUM;
1290 		fw_cmd.port_number = hw->bus.lan_id;
1291 
1292 		status = ixgbe_host_interface_command(hw, &fw_cmd,
1293 					sizeof(struct ixgbe_hic_disable_rxen),
1294 					IXGBE_HI_COMMAND_TIMEOUT, true);
1295 
1296 		/* If we fail - disable RX using register write */
1297 		if (status) {
1298 			rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
1299 			if (rxctrl & IXGBE_RXCTRL_RXEN) {
1300 				rxctrl &= ~IXGBE_RXCTRL_RXEN;
1301 				IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl);
1302 			}
1303 		}
1304 	}
1305 }
1306 
1307 /** ixgbe_update_eeprom_checksum_X550 - Updates the EEPROM checksum and flash
1308  *  @hw: pointer to hardware structure
1309  *
1310  *  After writing EEPROM to shadow RAM using EEWR register, software calculates
1311  *  checksum and updates the EEPROM and instructs the hardware to update
1312  *  the flash.
1313  **/
1314 static s32 ixgbe_update_eeprom_checksum_X550(struct ixgbe_hw *hw)
1315 {
1316 	s32 status;
1317 	u16 checksum = 0;
1318 
1319 	/* Read the first word from the EEPROM. If this times out or fails, do
1320 	 * not continue or we could be in for a very long wait while every
1321 	 * EEPROM read fails
1322 	 */
1323 	status = ixgbe_read_ee_hostif_X550(hw, 0, &checksum);
1324 	if (status) {
1325 		hw_dbg(hw, "EEPROM read failed\n");
1326 		return status;
1327 	}
1328 
1329 	status = ixgbe_calc_eeprom_checksum_X550(hw);
1330 	if (status < 0)
1331 		return status;
1332 
1333 	checksum = (u16)(status & 0xffff);
1334 
1335 	status = ixgbe_write_ee_hostif_X550(hw, IXGBE_EEPROM_CHECKSUM,
1336 					    checksum);
1337 	if (status)
1338 		return status;
1339 
1340 	status = ixgbe_update_flash_X550(hw);
1341 
1342 	return status;
1343 }
1344 
1345 /** ixgbe_write_ee_hostif_buffer_X550 - Write EEPROM word(s) using hostif
1346  *  @hw: pointer to hardware structure
1347  *  @offset: offset of  word in the EEPROM to write
1348  *  @words: number of words
1349  *  @data: word(s) write to the EEPROM
1350  *
1351  *
1352  *  Write a 16 bit word(s) to the EEPROM using the hostif.
1353  **/
1354 static s32 ixgbe_write_ee_hostif_buffer_X550(struct ixgbe_hw *hw,
1355 					     u16 offset, u16 words,
1356 					     u16 *data)
1357 {
1358 	s32 status = 0;
1359 	u32 i = 0;
1360 
1361 	/* Take semaphore for the entire operation. */
1362 	status = hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
1363 	if (status) {
1364 		hw_dbg(hw, "EEPROM write buffer - semaphore failed\n");
1365 		return status;
1366 	}
1367 
1368 	for (i = 0; i < words; i++) {
1369 		status = ixgbe_write_ee_hostif_data_X550(hw, offset + i,
1370 							 data[i]);
1371 		if (status) {
1372 			hw_dbg(hw, "Eeprom buffered write failed\n");
1373 			break;
1374 		}
1375 	}
1376 
1377 	hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
1378 
1379 	return status;
1380 }
1381 
1382 /** ixgbe_write_iosf_sb_reg_x550 - Writes a value to specified register of the
1383  *  IOSF device
1384  *
1385  *  @hw: pointer to hardware structure
1386  *  @reg_addr: 32 bit PHY register to write
1387  *  @device_type: 3 bit device type
1388  *  @data: Data to write to the register
1389  **/
1390 static s32 ixgbe_write_iosf_sb_reg_x550(struct ixgbe_hw *hw, u32 reg_addr,
1391 					u32 device_type, u32 data)
1392 {
1393 	u32 gssr = IXGBE_GSSR_PHY1_SM | IXGBE_GSSR_PHY0_SM;
1394 	u32 command, error;
1395 	s32 ret;
1396 
1397 	ret = hw->mac.ops.acquire_swfw_sync(hw, gssr);
1398 	if (ret)
1399 		return ret;
1400 
1401 	ret = ixgbe_iosf_wait(hw, NULL);
1402 	if (ret)
1403 		goto out;
1404 
1405 	command = ((reg_addr << IXGBE_SB_IOSF_CTRL_ADDR_SHIFT) |
1406 		   (device_type << IXGBE_SB_IOSF_CTRL_TARGET_SELECT_SHIFT));
1407 
1408 	/* Write IOSF control register */
1409 	IXGBE_WRITE_REG(hw, IXGBE_SB_IOSF_INDIRECT_CTRL, command);
1410 
1411 	/* Write IOSF data register */
1412 	IXGBE_WRITE_REG(hw, IXGBE_SB_IOSF_INDIRECT_DATA, data);
1413 
1414 	ret = ixgbe_iosf_wait(hw, &command);
1415 
1416 	if ((command & IXGBE_SB_IOSF_CTRL_RESP_STAT_MASK) != 0) {
1417 		error = FIELD_GET(IXGBE_SB_IOSF_CTRL_CMPL_ERR_MASK, command);
1418 		hw_dbg(hw, "Failed to write, error %x\n", error);
1419 		return -EIO;
1420 	}
1421 
1422 out:
1423 	hw->mac.ops.release_swfw_sync(hw, gssr);
1424 	return ret;
1425 }
1426 
1427 /**
1428  *  ixgbe_setup_ixfi_x550em_x - MAC specific iXFI configuration
1429  *  @hw: pointer to hardware structure
1430  *
1431  *  iXfI configuration needed for ixgbe_mac_X550EM_x devices.
1432  **/
1433 static s32 ixgbe_setup_ixfi_x550em_x(struct ixgbe_hw *hw)
1434 {
1435 	s32 status;
1436 	u32 reg_val;
1437 
1438 	/* Disable training protocol FSM. */
1439 	status = ixgbe_read_iosf_sb_reg_x550(hw,
1440 				IXGBE_KRM_RX_TRN_LINKUP_CTRL(hw->bus.lan_id),
1441 				IXGBE_SB_IOSF_TARGET_KR_PHY, &reg_val);
1442 	if (status)
1443 		return status;
1444 
1445 	reg_val |= IXGBE_KRM_RX_TRN_LINKUP_CTRL_CONV_WO_PROTOCOL;
1446 	status = ixgbe_write_iosf_sb_reg_x550(hw,
1447 				IXGBE_KRM_RX_TRN_LINKUP_CTRL(hw->bus.lan_id),
1448 				IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1449 	if (status)
1450 		return status;
1451 
1452 	/* Disable Flex from training TXFFE. */
1453 	status = ixgbe_read_iosf_sb_reg_x550(hw,
1454 				IXGBE_KRM_DSP_TXFFE_STATE_4(hw->bus.lan_id),
1455 				IXGBE_SB_IOSF_TARGET_KR_PHY, &reg_val);
1456 	if (status)
1457 		return status;
1458 
1459 	reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_C0_EN;
1460 	reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_CP1_CN1_EN;
1461 	reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_CO_ADAPT_EN;
1462 	status = ixgbe_write_iosf_sb_reg_x550(hw,
1463 				IXGBE_KRM_DSP_TXFFE_STATE_4(hw->bus.lan_id),
1464 				IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1465 	if (status)
1466 		return status;
1467 
1468 	status = ixgbe_read_iosf_sb_reg_x550(hw,
1469 				IXGBE_KRM_DSP_TXFFE_STATE_5(hw->bus.lan_id),
1470 				IXGBE_SB_IOSF_TARGET_KR_PHY, &reg_val);
1471 	if (status)
1472 		return status;
1473 
1474 	reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_C0_EN;
1475 	reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_CP1_CN1_EN;
1476 	reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_CO_ADAPT_EN;
1477 	status = ixgbe_write_iosf_sb_reg_x550(hw,
1478 				IXGBE_KRM_DSP_TXFFE_STATE_5(hw->bus.lan_id),
1479 				IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1480 	if (status)
1481 		return status;
1482 
1483 	/* Enable override for coefficients. */
1484 	status = ixgbe_read_iosf_sb_reg_x550(hw,
1485 				IXGBE_KRM_TX_COEFF_CTRL_1(hw->bus.lan_id),
1486 				IXGBE_SB_IOSF_TARGET_KR_PHY, &reg_val);
1487 	if (status)
1488 		return status;
1489 
1490 	reg_val |= IXGBE_KRM_TX_COEFF_CTRL_1_OVRRD_EN;
1491 	reg_val |= IXGBE_KRM_TX_COEFF_CTRL_1_CZERO_EN;
1492 	reg_val |= IXGBE_KRM_TX_COEFF_CTRL_1_CPLUS1_OVRRD_EN;
1493 	reg_val |= IXGBE_KRM_TX_COEFF_CTRL_1_CMINUS1_OVRRD_EN;
1494 	status = ixgbe_write_iosf_sb_reg_x550(hw,
1495 				IXGBE_KRM_TX_COEFF_CTRL_1(hw->bus.lan_id),
1496 				IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1497 	return status;
1498 }
1499 
1500 /**
1501  *  ixgbe_restart_an_internal_phy_x550em - restart autonegotiation for the
1502  *  internal PHY
1503  *  @hw: pointer to hardware structure
1504  **/
1505 static s32 ixgbe_restart_an_internal_phy_x550em(struct ixgbe_hw *hw)
1506 {
1507 	s32 status;
1508 	u32 link_ctrl;
1509 
1510 	/* Restart auto-negotiation. */
1511 	status = hw->mac.ops.read_iosf_sb_reg(hw,
1512 				IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1513 				IXGBE_SB_IOSF_TARGET_KR_PHY, &link_ctrl);
1514 
1515 	if (status) {
1516 		hw_dbg(hw, "Auto-negotiation did not complete\n");
1517 		return status;
1518 	}
1519 
1520 	link_ctrl |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_RESTART;
1521 	status = hw->mac.ops.write_iosf_sb_reg(hw,
1522 				IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1523 				IXGBE_SB_IOSF_TARGET_KR_PHY, link_ctrl);
1524 
1525 	if (hw->mac.type == ixgbe_mac_x550em_a) {
1526 		u32 flx_mask_st20;
1527 
1528 		/* Indicate to FW that AN restart has been asserted */
1529 		status = hw->mac.ops.read_iosf_sb_reg(hw,
1530 				IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1531 				IXGBE_SB_IOSF_TARGET_KR_PHY, &flx_mask_st20);
1532 
1533 		if (status) {
1534 			hw_dbg(hw, "Auto-negotiation did not complete\n");
1535 			return status;
1536 		}
1537 
1538 		flx_mask_st20 |= IXGBE_KRM_PMD_FLX_MASK_ST20_FW_AN_RESTART;
1539 		status = hw->mac.ops.write_iosf_sb_reg(hw,
1540 				IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1541 				IXGBE_SB_IOSF_TARGET_KR_PHY, flx_mask_st20);
1542 	}
1543 
1544 	return status;
1545 }
1546 
1547 /** ixgbe_setup_ixfi_x550em - Configure the KR PHY for iXFI mode.
1548  *  @hw: pointer to hardware structure
1549  *  @speed: the link speed to force
1550  *
1551  *  Configures the integrated KR PHY to use iXFI mode. Used to connect an
1552  *  internal and external PHY at a specific speed, without autonegotiation.
1553  **/
1554 static s32 ixgbe_setup_ixfi_x550em(struct ixgbe_hw *hw, ixgbe_link_speed *speed)
1555 {
1556 	struct ixgbe_mac_info *mac = &hw->mac;
1557 	s32 status;
1558 	u32 reg_val;
1559 
1560 	/* iXFI is only supported with X552 */
1561 	if (mac->type != ixgbe_mac_X550EM_x)
1562 		return -EIO;
1563 
1564 	/* Disable AN and force speed to 10G Serial. */
1565 	status = ixgbe_read_iosf_sb_reg_x550(hw,
1566 					IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1567 					IXGBE_SB_IOSF_TARGET_KR_PHY, &reg_val);
1568 	if (status)
1569 		return status;
1570 
1571 	reg_val &= ~IXGBE_KRM_LINK_CTRL_1_TETH_AN_ENABLE;
1572 	reg_val &= ~IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_MASK;
1573 
1574 	/* Select forced link speed for internal PHY. */
1575 	switch (*speed) {
1576 	case IXGBE_LINK_SPEED_10GB_FULL:
1577 		reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_10G;
1578 		break;
1579 	case IXGBE_LINK_SPEED_1GB_FULL:
1580 		reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_1G;
1581 		break;
1582 	default:
1583 		/* Other link speeds are not supported by internal KR PHY. */
1584 		return -EINVAL;
1585 	}
1586 
1587 	status = ixgbe_write_iosf_sb_reg_x550(hw,
1588 				IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1589 				IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1590 	if (status)
1591 		return status;
1592 
1593 	/* Additional configuration needed for x550em_x */
1594 	if (hw->mac.type == ixgbe_mac_X550EM_x) {
1595 		status = ixgbe_setup_ixfi_x550em_x(hw);
1596 		if (status)
1597 			return status;
1598 	}
1599 
1600 	/* Toggle port SW reset by AN reset. */
1601 	status = ixgbe_restart_an_internal_phy_x550em(hw);
1602 
1603 	return status;
1604 }
1605 
1606 /**
1607  *  ixgbe_supported_sfp_modules_X550em - Check if SFP module type is supported
1608  *  @hw: pointer to hardware structure
1609  *  @linear: true if SFP module is linear
1610  */
1611 static s32 ixgbe_supported_sfp_modules_X550em(struct ixgbe_hw *hw, bool *linear)
1612 {
1613 	switch (hw->phy.sfp_type) {
1614 	case ixgbe_sfp_type_not_present:
1615 		return -ENOENT;
1616 	case ixgbe_sfp_type_da_cu_core0:
1617 	case ixgbe_sfp_type_da_cu_core1:
1618 		*linear = true;
1619 		break;
1620 	case ixgbe_sfp_type_srlr_core0:
1621 	case ixgbe_sfp_type_srlr_core1:
1622 	case ixgbe_sfp_type_da_act_lmt_core0:
1623 	case ixgbe_sfp_type_da_act_lmt_core1:
1624 	case ixgbe_sfp_type_1g_sx_core0:
1625 	case ixgbe_sfp_type_1g_sx_core1:
1626 	case ixgbe_sfp_type_1g_lx_core0:
1627 	case ixgbe_sfp_type_1g_lx_core1:
1628 		*linear = false;
1629 		break;
1630 	case ixgbe_sfp_type_unknown:
1631 	case ixgbe_sfp_type_1g_cu_core0:
1632 	case ixgbe_sfp_type_1g_cu_core1:
1633 	default:
1634 		return -EOPNOTSUPP;
1635 	}
1636 
1637 	return 0;
1638 }
1639 
1640 /**
1641  * ixgbe_setup_mac_link_sfp_x550em - Configure the KR PHY for SFP.
1642  * @hw: pointer to hardware structure
1643  * @speed: the link speed to force
1644  * @autoneg_wait_to_complete: unused
1645  *
1646  * Configures the extern PHY and the integrated KR PHY for SFP support.
1647  */
1648 static s32
1649 ixgbe_setup_mac_link_sfp_x550em(struct ixgbe_hw *hw,
1650 				ixgbe_link_speed speed,
1651 				__always_unused bool autoneg_wait_to_complete)
1652 {
1653 	s32 status;
1654 	u16 reg_slice, reg_val;
1655 	bool setup_linear = false;
1656 
1657 	/* Check if SFP module is supported and linear */
1658 	status = ixgbe_supported_sfp_modules_X550em(hw, &setup_linear);
1659 
1660 	/* If no SFP module present, then return success. Return success since
1661 	 * there is no reason to configure CS4227 and SFP not present error is
1662 	 * not accepted in the setup MAC link flow.
1663 	 */
1664 	if (status == -ENOENT)
1665 		return 0;
1666 
1667 	if (status)
1668 		return status;
1669 
1670 	/* Configure internal PHY for KR/KX. */
1671 	ixgbe_setup_kr_speed_x550em(hw, speed);
1672 
1673 	/* Configure CS4227 LINE side to proper mode. */
1674 	reg_slice = IXGBE_CS4227_LINE_SPARE24_LSB + (hw->bus.lan_id << 12);
1675 	if (setup_linear)
1676 		reg_val = (IXGBE_CS4227_EDC_MODE_CX1 << 1) | 0x1;
1677 	else
1678 		reg_val = (IXGBE_CS4227_EDC_MODE_SR << 1) | 0x1;
1679 
1680 	status = hw->link.ops.write_link(hw, hw->link.addr, reg_slice,
1681 					 reg_val);
1682 
1683 	return status;
1684 }
1685 
1686 /**
1687  * ixgbe_setup_sfi_x550a - Configure the internal PHY for native SFI mode
1688  * @hw: pointer to hardware structure
1689  * @speed: the link speed to force
1690  *
1691  * Configures the integrated PHY for native SFI mode. Used to connect the
1692  * internal PHY directly to an SFP cage, without autonegotiation.
1693  **/
1694 static s32 ixgbe_setup_sfi_x550a(struct ixgbe_hw *hw, ixgbe_link_speed *speed)
1695 {
1696 	struct ixgbe_mac_info *mac = &hw->mac;
1697 	s32 status;
1698 	u32 reg_val;
1699 
1700 	/* Disable all AN and force speed to 10G Serial. */
1701 	status = mac->ops.read_iosf_sb_reg(hw,
1702 				IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1703 				IXGBE_SB_IOSF_TARGET_KR_PHY, &reg_val);
1704 	if (status)
1705 		return status;
1706 
1707 	reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_AN_EN;
1708 	reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_AN37_EN;
1709 	reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SGMII_EN;
1710 	reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_MASK;
1711 
1712 	/* Select forced link speed for internal PHY. */
1713 	switch (*speed) {
1714 	case IXGBE_LINK_SPEED_10GB_FULL:
1715 		reg_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_10G;
1716 		break;
1717 	case IXGBE_LINK_SPEED_1GB_FULL:
1718 		reg_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_1G;
1719 		break;
1720 	default:
1721 		/* Other link speeds are not supported by internal PHY. */
1722 		return -EINVAL;
1723 	}
1724 
1725 	status = mac->ops.write_iosf_sb_reg(hw,
1726 				IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1727 				IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1728 
1729 	/* Toggle port SW reset by AN reset. */
1730 	status = ixgbe_restart_an_internal_phy_x550em(hw);
1731 
1732 	return status;
1733 }
1734 
1735 /**
1736  * ixgbe_setup_mac_link_sfp_n - Setup internal PHY for native SFP
1737  * @hw: pointer to hardware structure
1738  * @speed: link speed
1739  * @autoneg_wait_to_complete: unused
1740  *
1741  * Configure the integrated PHY for native SFP support.
1742  */
1743 static s32
1744 ixgbe_setup_mac_link_sfp_n(struct ixgbe_hw *hw, ixgbe_link_speed speed,
1745 			   __always_unused bool autoneg_wait_to_complete)
1746 {
1747 	bool setup_linear = false;
1748 	u32 reg_phy_int;
1749 	s32 ret_val;
1750 
1751 	/* Check if SFP module is supported and linear */
1752 	ret_val = ixgbe_supported_sfp_modules_X550em(hw, &setup_linear);
1753 
1754 	/* If no SFP module present, then return success. Return success since
1755 	 * SFP not present error is not excepted in the setup MAC link flow.
1756 	 */
1757 	if (ret_val == -ENOENT)
1758 		return 0;
1759 
1760 	if (ret_val)
1761 		return ret_val;
1762 
1763 	/* Configure internal PHY for native SFI based on module type */
1764 	ret_val = hw->mac.ops.read_iosf_sb_reg(hw,
1765 				IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1766 				IXGBE_SB_IOSF_TARGET_KR_PHY, &reg_phy_int);
1767 	if (ret_val)
1768 		return ret_val;
1769 
1770 	reg_phy_int &= IXGBE_KRM_PMD_FLX_MASK_ST20_SFI_10G_DA;
1771 	if (!setup_linear)
1772 		reg_phy_int |= IXGBE_KRM_PMD_FLX_MASK_ST20_SFI_10G_SR;
1773 
1774 	ret_val = hw->mac.ops.write_iosf_sb_reg(hw,
1775 				IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1776 				IXGBE_SB_IOSF_TARGET_KR_PHY, reg_phy_int);
1777 	if (ret_val)
1778 		return ret_val;
1779 
1780 	/* Setup SFI internal link. */
1781 	return ixgbe_setup_sfi_x550a(hw, &speed);
1782 }
1783 
1784 /**
1785  * ixgbe_setup_mac_link_sfp_x550a - Setup internal PHY for SFP
1786  * @hw: pointer to hardware structure
1787  * @speed: link speed
1788  * @autoneg_wait_to_complete: unused
1789  *
1790  * Configure the integrated PHY for SFP support.
1791  */
1792 static s32
1793 ixgbe_setup_mac_link_sfp_x550a(struct ixgbe_hw *hw, ixgbe_link_speed speed,
1794 			       __always_unused bool autoneg_wait_to_complete)
1795 {
1796 	u32 reg_slice, slice_offset;
1797 	bool setup_linear = false;
1798 	u16 reg_phy_ext;
1799 	s32 ret_val;
1800 
1801 	/* Check if SFP module is supported and linear */
1802 	ret_val = ixgbe_supported_sfp_modules_X550em(hw, &setup_linear);
1803 
1804 	/* If no SFP module present, then return success. Return success since
1805 	 * SFP not present error is not excepted in the setup MAC link flow.
1806 	 */
1807 	if (ret_val == -ENOENT)
1808 		return 0;
1809 
1810 	if (ret_val)
1811 		return ret_val;
1812 
1813 	/* Configure internal PHY for KR/KX. */
1814 	ixgbe_setup_kr_speed_x550em(hw, speed);
1815 
1816 	if (hw->phy.mdio.prtad == MDIO_PRTAD_NONE)
1817 		return -EFAULT;
1818 
1819 	/* Get external PHY SKU id */
1820 	ret_val = hw->phy.ops.read_reg(hw, IXGBE_CS4227_EFUSE_PDF_SKU,
1821 				       IXGBE_MDIO_ZERO_DEV_TYPE, &reg_phy_ext);
1822 	if (ret_val)
1823 		return ret_val;
1824 
1825 	/* When configuring quad port CS4223, the MAC instance is part
1826 	 * of the slice offset.
1827 	 */
1828 	if (reg_phy_ext == IXGBE_CS4223_SKU_ID)
1829 		slice_offset = (hw->bus.lan_id +
1830 				(hw->bus.instance_id << 1)) << 12;
1831 	else
1832 		slice_offset = hw->bus.lan_id << 12;
1833 
1834 	/* Configure CS4227/CS4223 LINE side to proper mode. */
1835 	reg_slice = IXGBE_CS4227_LINE_SPARE24_LSB + slice_offset;
1836 
1837 	ret_val = hw->phy.ops.read_reg(hw, reg_slice,
1838 				       IXGBE_MDIO_ZERO_DEV_TYPE, &reg_phy_ext);
1839 	if (ret_val)
1840 		return ret_val;
1841 
1842 	reg_phy_ext &= ~((IXGBE_CS4227_EDC_MODE_CX1 << 1) |
1843 			 (IXGBE_CS4227_EDC_MODE_SR << 1));
1844 
1845 	if (setup_linear)
1846 		reg_phy_ext |= (IXGBE_CS4227_EDC_MODE_CX1 << 1) | 1;
1847 	else
1848 		reg_phy_ext |= (IXGBE_CS4227_EDC_MODE_SR << 1) | 1;
1849 
1850 	ret_val = hw->phy.ops.write_reg(hw, reg_slice,
1851 					IXGBE_MDIO_ZERO_DEV_TYPE, reg_phy_ext);
1852 	if (ret_val)
1853 		return ret_val;
1854 
1855 	/* Flush previous write with a read */
1856 	return hw->phy.ops.read_reg(hw, reg_slice,
1857 				    IXGBE_MDIO_ZERO_DEV_TYPE, &reg_phy_ext);
1858 }
1859 
1860 /**
1861  * ixgbe_setup_mac_link_t_X550em - Sets the auto advertised link speed
1862  * @hw: pointer to hardware structure
1863  * @speed: new link speed
1864  * @autoneg_wait: true when waiting for completion is needed
1865  *
1866  * Setup internal/external PHY link speed based on link speed, then set
1867  * external PHY auto advertised link speed.
1868  *
1869  * Returns error status for any failure
1870  **/
1871 static s32 ixgbe_setup_mac_link_t_X550em(struct ixgbe_hw *hw,
1872 					 ixgbe_link_speed speed,
1873 					 bool autoneg_wait)
1874 {
1875 	s32 status;
1876 	ixgbe_link_speed force_speed;
1877 
1878 	/* Setup internal/external PHY link speed to iXFI (10G), unless
1879 	 * only 1G is auto advertised then setup KX link.
1880 	 */
1881 	if (speed & IXGBE_LINK_SPEED_10GB_FULL)
1882 		force_speed = IXGBE_LINK_SPEED_10GB_FULL;
1883 	else
1884 		force_speed = IXGBE_LINK_SPEED_1GB_FULL;
1885 
1886 	/* If X552 and internal link mode is XFI, then setup XFI internal link.
1887 	 */
1888 	if (hw->mac.type == ixgbe_mac_X550EM_x &&
1889 	    !(hw->phy.nw_mng_if_sel & IXGBE_NW_MNG_IF_SEL_INT_PHY_MODE)) {
1890 		status = ixgbe_setup_ixfi_x550em(hw, &force_speed);
1891 
1892 		if (status)
1893 			return status;
1894 	}
1895 
1896 	return hw->phy.ops.setup_link_speed(hw, speed, autoneg_wait);
1897 }
1898 
1899 /** ixgbe_check_link_t_X550em - Determine link and speed status
1900   * @hw: pointer to hardware structure
1901   * @speed: pointer to link speed
1902   * @link_up: true when link is up
1903   * @link_up_wait_to_complete: bool used to wait for link up or not
1904   *
1905   * Check that both the MAC and X557 external PHY have link.
1906   **/
1907 static s32 ixgbe_check_link_t_X550em(struct ixgbe_hw *hw,
1908 				     ixgbe_link_speed *speed,
1909 				     bool *link_up,
1910 				     bool link_up_wait_to_complete)
1911 {
1912 	u32 status;
1913 	u16 i, autoneg_status;
1914 
1915 	if (hw->mac.ops.get_media_type(hw) != ixgbe_media_type_copper)
1916 		return -EIO;
1917 
1918 	status = ixgbe_check_mac_link_generic(hw, speed, link_up,
1919 					      link_up_wait_to_complete);
1920 
1921 	/* If check link fails or MAC link is not up, then return */
1922 	if (status || !(*link_up))
1923 		return status;
1924 
1925 	/* MAC link is up, so check external PHY link.
1926 	 * Link status is latching low, and can only be used to detect link
1927 	 * drop, and not the current status of the link without performing
1928 	 * back-to-back reads.
1929 	 */
1930 	for (i = 0; i < 2; i++) {
1931 		status = hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN,
1932 					      &autoneg_status);
1933 
1934 		if (status)
1935 			return status;
1936 	}
1937 
1938 	/* If external PHY link is not up, then indicate link not up */
1939 	if (!(autoneg_status & IXGBE_MDIO_AUTO_NEG_LINK_STATUS))
1940 		*link_up = false;
1941 
1942 	return 0;
1943 }
1944 
1945 /**
1946  * ixgbe_setup_sgmii - Set up link for sgmii
1947  * @hw: pointer to hardware structure
1948  * @speed: unused
1949  * @autoneg_wait_to_complete: unused
1950  */
1951 static s32
1952 ixgbe_setup_sgmii(struct ixgbe_hw *hw, __always_unused ixgbe_link_speed speed,
1953 		  __always_unused bool autoneg_wait_to_complete)
1954 {
1955 	struct ixgbe_mac_info *mac = &hw->mac;
1956 	u32 lval, sval, flx_val;
1957 	s32 rc;
1958 
1959 	rc = mac->ops.read_iosf_sb_reg(hw,
1960 				       IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1961 				       IXGBE_SB_IOSF_TARGET_KR_PHY, &lval);
1962 	if (rc)
1963 		return rc;
1964 
1965 	lval &= ~IXGBE_KRM_LINK_CTRL_1_TETH_AN_ENABLE;
1966 	lval &= ~IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_MASK;
1967 	lval |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_SGMII_EN;
1968 	lval |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_CLAUSE_37_EN;
1969 	lval |= IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_1G;
1970 	rc = mac->ops.write_iosf_sb_reg(hw,
1971 					IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1972 					IXGBE_SB_IOSF_TARGET_KR_PHY, lval);
1973 	if (rc)
1974 		return rc;
1975 
1976 	rc = mac->ops.read_iosf_sb_reg(hw,
1977 				       IXGBE_KRM_SGMII_CTRL(hw->bus.lan_id),
1978 				       IXGBE_SB_IOSF_TARGET_KR_PHY, &sval);
1979 	if (rc)
1980 		return rc;
1981 
1982 	sval |= IXGBE_KRM_SGMII_CTRL_MAC_TAR_FORCE_10_D;
1983 	sval |= IXGBE_KRM_SGMII_CTRL_MAC_TAR_FORCE_100_D;
1984 	rc = mac->ops.write_iosf_sb_reg(hw,
1985 					IXGBE_KRM_SGMII_CTRL(hw->bus.lan_id),
1986 					IXGBE_SB_IOSF_TARGET_KR_PHY, sval);
1987 	if (rc)
1988 		return rc;
1989 
1990 	rc = mac->ops.read_iosf_sb_reg(hw,
1991 				IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1992 				IXGBE_SB_IOSF_TARGET_KR_PHY, &flx_val);
1993 	if (rc)
1994 		return rc;
1995 
1996 	rc = mac->ops.read_iosf_sb_reg(hw,
1997 				IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1998 				IXGBE_SB_IOSF_TARGET_KR_PHY, &flx_val);
1999 	if (rc)
2000 		return rc;
2001 
2002 	flx_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_MASK;
2003 	flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_1G;
2004 	flx_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_AN_EN;
2005 	flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SGMII_EN;
2006 	flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_AN37_EN;
2007 
2008 	rc = mac->ops.write_iosf_sb_reg(hw,
2009 				IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2010 				IXGBE_SB_IOSF_TARGET_KR_PHY, flx_val);
2011 	if (rc)
2012 		return rc;
2013 
2014 	rc = ixgbe_restart_an_internal_phy_x550em(hw);
2015 	return rc;
2016 }
2017 
2018 /**
2019  * ixgbe_setup_sgmii_fw - Set up link for sgmii with firmware-controlled PHYs
2020  * @hw: pointer to hardware structure
2021  * @speed: the link speed to force
2022  * @autoneg_wait: true when waiting for completion is needed
2023  */
2024 static s32 ixgbe_setup_sgmii_fw(struct ixgbe_hw *hw, ixgbe_link_speed speed,
2025 				bool autoneg_wait)
2026 {
2027 	struct ixgbe_mac_info *mac = &hw->mac;
2028 	u32 lval, sval, flx_val;
2029 	s32 rc;
2030 
2031 	rc = mac->ops.read_iosf_sb_reg(hw,
2032 				       IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2033 				       IXGBE_SB_IOSF_TARGET_KR_PHY, &lval);
2034 	if (rc)
2035 		return rc;
2036 
2037 	lval &= ~IXGBE_KRM_LINK_CTRL_1_TETH_AN_ENABLE;
2038 	lval &= ~IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_MASK;
2039 	lval |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_SGMII_EN;
2040 	lval |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_CLAUSE_37_EN;
2041 	lval &= ~IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_1G;
2042 	rc = mac->ops.write_iosf_sb_reg(hw,
2043 					IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2044 					IXGBE_SB_IOSF_TARGET_KR_PHY, lval);
2045 	if (rc)
2046 		return rc;
2047 
2048 	rc = mac->ops.read_iosf_sb_reg(hw,
2049 				       IXGBE_KRM_SGMII_CTRL(hw->bus.lan_id),
2050 				       IXGBE_SB_IOSF_TARGET_KR_PHY, &sval);
2051 	if (rc)
2052 		return rc;
2053 
2054 	sval &= ~IXGBE_KRM_SGMII_CTRL_MAC_TAR_FORCE_10_D;
2055 	sval &= ~IXGBE_KRM_SGMII_CTRL_MAC_TAR_FORCE_100_D;
2056 	rc = mac->ops.write_iosf_sb_reg(hw,
2057 					IXGBE_KRM_SGMII_CTRL(hw->bus.lan_id),
2058 					IXGBE_SB_IOSF_TARGET_KR_PHY, sval);
2059 	if (rc)
2060 		return rc;
2061 
2062 	rc = mac->ops.write_iosf_sb_reg(hw,
2063 					IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2064 					IXGBE_SB_IOSF_TARGET_KR_PHY, lval);
2065 	if (rc)
2066 		return rc;
2067 
2068 	rc = mac->ops.read_iosf_sb_reg(hw,
2069 				    IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2070 				    IXGBE_SB_IOSF_TARGET_KR_PHY, &flx_val);
2071 	if (rc)
2072 		return rc;
2073 
2074 	flx_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_MASK;
2075 	flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_AN;
2076 	flx_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_AN_EN;
2077 	flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SGMII_EN;
2078 	flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_AN37_EN;
2079 
2080 	rc = mac->ops.write_iosf_sb_reg(hw,
2081 				    IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2082 				    IXGBE_SB_IOSF_TARGET_KR_PHY, flx_val);
2083 	if (rc)
2084 		return rc;
2085 
2086 	ixgbe_restart_an_internal_phy_x550em(hw);
2087 
2088 	return hw->phy.ops.setup_link_speed(hw, speed, autoneg_wait);
2089 }
2090 
2091 /**
2092  * ixgbe_fc_autoneg_sgmii_x550em_a - Enable flow control IEEE clause 37
2093  * @hw: pointer to hardware structure
2094  *
2095  * Enable flow control according to IEEE clause 37.
2096  */
2097 static void ixgbe_fc_autoneg_sgmii_x550em_a(struct ixgbe_hw *hw)
2098 {
2099 	u32 info[FW_PHY_ACT_DATA_COUNT] = { 0 };
2100 	ixgbe_link_speed speed;
2101 	s32 status = -EIO;
2102 	bool link_up;
2103 
2104 	/* AN should have completed when the cable was plugged in.
2105 	 * Look for reasons to bail out.  Bail out if:
2106 	 * - FC autoneg is disabled, or if
2107 	 * - link is not up.
2108 	 */
2109 	if (hw->fc.disable_fc_autoneg)
2110 		goto out;
2111 
2112 	hw->mac.ops.check_link(hw, &speed, &link_up, false);
2113 	if (!link_up)
2114 		goto out;
2115 
2116 	/* Check if auto-negotiation has completed */
2117 	status = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_GET_LINK_INFO, &info);
2118 	if (status || !(info[0] & FW_PHY_ACT_GET_LINK_INFO_AN_COMPLETE)) {
2119 		status = -EIO;
2120 		goto out;
2121 	}
2122 
2123 	/* Negotiate the flow control */
2124 	status = ixgbe_negotiate_fc(hw, info[0], info[0],
2125 				    FW_PHY_ACT_GET_LINK_INFO_FC_RX,
2126 				    FW_PHY_ACT_GET_LINK_INFO_FC_TX,
2127 				    FW_PHY_ACT_GET_LINK_INFO_LP_FC_RX,
2128 				    FW_PHY_ACT_GET_LINK_INFO_LP_FC_TX);
2129 
2130 out:
2131 	if (!status) {
2132 		hw->fc.fc_was_autonegged = true;
2133 	} else {
2134 		hw->fc.fc_was_autonegged = false;
2135 		hw->fc.current_mode = hw->fc.requested_mode;
2136 	}
2137 }
2138 
2139 /** ixgbe_init_mac_link_ops_X550em_a - Init mac link function pointers
2140  *  @hw: pointer to hardware structure
2141  **/
2142 static void ixgbe_init_mac_link_ops_X550em_a(struct ixgbe_hw *hw)
2143 {
2144 	struct ixgbe_mac_info *mac = &hw->mac;
2145 
2146 	switch (mac->ops.get_media_type(hw)) {
2147 	case ixgbe_media_type_fiber:
2148 		mac->ops.setup_fc = NULL;
2149 		mac->ops.fc_autoneg = ixgbe_fc_autoneg_fiber_x550em_a;
2150 		break;
2151 	case ixgbe_media_type_copper:
2152 		if (hw->device_id != IXGBE_DEV_ID_X550EM_A_1G_T &&
2153 		    hw->device_id != IXGBE_DEV_ID_X550EM_A_1G_T_L) {
2154 			mac->ops.setup_link = ixgbe_setup_mac_link_t_X550em;
2155 			break;
2156 		}
2157 		mac->ops.fc_autoneg = ixgbe_fc_autoneg_sgmii_x550em_a;
2158 		mac->ops.setup_fc = ixgbe_fc_autoneg_fw;
2159 		mac->ops.setup_link = ixgbe_setup_sgmii_fw;
2160 		mac->ops.check_link = ixgbe_check_mac_link_generic;
2161 		break;
2162 	case ixgbe_media_type_backplane:
2163 		mac->ops.fc_autoneg = ixgbe_fc_autoneg_backplane_x550em_a;
2164 		mac->ops.setup_fc = ixgbe_setup_fc_backplane_x550em_a;
2165 		break;
2166 	default:
2167 		break;
2168 	}
2169 }
2170 
2171 /** ixgbe_init_mac_link_ops_X550em - init mac link function pointers
2172  *  @hw: pointer to hardware structure
2173  **/
2174 static void ixgbe_init_mac_link_ops_X550em(struct ixgbe_hw *hw)
2175 {
2176 	struct ixgbe_mac_info *mac = &hw->mac;
2177 
2178 	mac->ops.setup_fc = ixgbe_setup_fc_x550em;
2179 
2180 	switch (mac->ops.get_media_type(hw)) {
2181 	case ixgbe_media_type_fiber:
2182 		/* CS4227 does not support autoneg, so disable the laser control
2183 		 * functions for SFP+ fiber
2184 		 */
2185 		mac->ops.disable_tx_laser = NULL;
2186 		mac->ops.enable_tx_laser = NULL;
2187 		mac->ops.flap_tx_laser = NULL;
2188 		mac->ops.setup_link = ixgbe_setup_mac_link_multispeed_fiber;
2189 		switch (hw->device_id) {
2190 		case IXGBE_DEV_ID_X550EM_A_SFP_N:
2191 			mac->ops.setup_mac_link = ixgbe_setup_mac_link_sfp_n;
2192 			break;
2193 		case IXGBE_DEV_ID_X550EM_A_SFP:
2194 			mac->ops.setup_mac_link =
2195 						ixgbe_setup_mac_link_sfp_x550a;
2196 			break;
2197 		default:
2198 			mac->ops.setup_mac_link =
2199 						ixgbe_setup_mac_link_sfp_x550em;
2200 			break;
2201 		}
2202 		mac->ops.set_rate_select_speed =
2203 					ixgbe_set_soft_rate_select_speed;
2204 		break;
2205 	case ixgbe_media_type_copper:
2206 		if (hw->device_id == IXGBE_DEV_ID_X550EM_X_1G_T)
2207 			break;
2208 		mac->ops.setup_link = ixgbe_setup_mac_link_t_X550em;
2209 		mac->ops.setup_fc = ixgbe_setup_fc_generic;
2210 		mac->ops.check_link = ixgbe_check_link_t_X550em;
2211 		break;
2212 	case ixgbe_media_type_backplane:
2213 		if (hw->device_id == IXGBE_DEV_ID_X550EM_A_SGMII ||
2214 		    hw->device_id == IXGBE_DEV_ID_X550EM_A_SGMII_L)
2215 			mac->ops.setup_link = ixgbe_setup_sgmii;
2216 		break;
2217 	default:
2218 		break;
2219 	}
2220 
2221 	/* Additional modification for X550em_a devices */
2222 	if (hw->mac.type == ixgbe_mac_x550em_a)
2223 		ixgbe_init_mac_link_ops_X550em_a(hw);
2224 }
2225 
2226 /** ixgbe_setup_sfp_modules_X550em - Setup SFP module
2227  * @hw: pointer to hardware structure
2228  */
2229 static s32 ixgbe_setup_sfp_modules_X550em(struct ixgbe_hw *hw)
2230 {
2231 	s32 status;
2232 	bool linear;
2233 
2234 	/* Check if SFP module is supported */
2235 	status = ixgbe_supported_sfp_modules_X550em(hw, &linear);
2236 	if (status)
2237 		return status;
2238 
2239 	ixgbe_init_mac_link_ops_X550em(hw);
2240 	hw->phy.ops.reset = NULL;
2241 
2242 	return 0;
2243 }
2244 
2245 /** ixgbe_get_link_capabilities_x550em - Determines link capabilities
2246  * @hw: pointer to hardware structure
2247  * @speed: pointer to link speed
2248  * @autoneg: true when autoneg or autotry is enabled
2249  **/
2250 static s32 ixgbe_get_link_capabilities_X550em(struct ixgbe_hw *hw,
2251 					      ixgbe_link_speed *speed,
2252 					      bool *autoneg)
2253 {
2254 	if (hw->phy.type == ixgbe_phy_fw) {
2255 		*autoneg = true;
2256 		*speed = hw->phy.speeds_supported;
2257 		return 0;
2258 	}
2259 
2260 	/* SFP */
2261 	if (hw->phy.media_type == ixgbe_media_type_fiber) {
2262 		/* CS4227 SFP must not enable auto-negotiation */
2263 		*autoneg = false;
2264 
2265 		if (hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core0 ||
2266 		    hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core1 ||
2267 		    hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core0 ||
2268 		    hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core1) {
2269 			*speed = IXGBE_LINK_SPEED_1GB_FULL;
2270 			return 0;
2271 		}
2272 
2273 		/* Link capabilities are based on SFP */
2274 		if (hw->phy.multispeed_fiber)
2275 			*speed = IXGBE_LINK_SPEED_10GB_FULL |
2276 				 IXGBE_LINK_SPEED_1GB_FULL;
2277 		else
2278 			*speed = IXGBE_LINK_SPEED_10GB_FULL;
2279 	} else {
2280 		switch (hw->phy.type) {
2281 		case ixgbe_phy_x550em_kx4:
2282 			*speed = IXGBE_LINK_SPEED_1GB_FULL |
2283 				 IXGBE_LINK_SPEED_2_5GB_FULL |
2284 				 IXGBE_LINK_SPEED_10GB_FULL;
2285 			break;
2286 		case ixgbe_phy_x550em_xfi:
2287 			*speed = IXGBE_LINK_SPEED_1GB_FULL |
2288 				 IXGBE_LINK_SPEED_10GB_FULL;
2289 			break;
2290 		case ixgbe_phy_ext_1g_t:
2291 		case ixgbe_phy_sgmii:
2292 			*speed = IXGBE_LINK_SPEED_1GB_FULL;
2293 			break;
2294 		case ixgbe_phy_x550em_kr:
2295 			if (hw->mac.type == ixgbe_mac_x550em_a) {
2296 				/* check different backplane modes */
2297 				if (hw->phy.nw_mng_if_sel &
2298 				    IXGBE_NW_MNG_IF_SEL_PHY_SPEED_2_5G) {
2299 					*speed = IXGBE_LINK_SPEED_2_5GB_FULL;
2300 					break;
2301 				} else if (hw->device_id ==
2302 					   IXGBE_DEV_ID_X550EM_A_KR_L) {
2303 					*speed = IXGBE_LINK_SPEED_1GB_FULL;
2304 					break;
2305 				}
2306 			}
2307 			fallthrough;
2308 		default:
2309 			*speed = IXGBE_LINK_SPEED_10GB_FULL |
2310 				 IXGBE_LINK_SPEED_1GB_FULL;
2311 			break;
2312 		}
2313 		*autoneg = true;
2314 	}
2315 	return 0;
2316 }
2317 
2318 /**
2319  * ixgbe_get_lasi_ext_t_x550em - Determime external Base T PHY interrupt cause
2320  * @hw: pointer to hardware structure
2321  * @lsc: pointer to boolean flag which indicates whether external Base T
2322  *	 PHY interrupt is lsc
2323  * @is_overtemp: indicate whether an overtemp event encountered
2324  *
2325  * Determime if external Base T PHY interrupt cause is high temperature
2326  * failure alarm or link status change.
2327  **/
2328 static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc,
2329 				       bool *is_overtemp)
2330 {
2331 	u32 status;
2332 	u16 reg;
2333 
2334 	*is_overtemp = false;
2335 	*lsc = false;
2336 
2337 	/* Vendor alarm triggered */
2338 	status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_CHIP_STD_INT_FLAG,
2339 				      MDIO_MMD_VEND1,
2340 				      &reg);
2341 
2342 	if (status || !(reg & IXGBE_MDIO_GLOBAL_VEN_ALM_INT_EN))
2343 		return status;
2344 
2345 	/* Vendor Auto-Neg alarm triggered or Global alarm 1 triggered */
2346 	status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_VEN_FLAG,
2347 				      MDIO_MMD_VEND1,
2348 				      &reg);
2349 
2350 	if (status || !(reg & (IXGBE_MDIO_GLOBAL_AN_VEN_ALM_INT_EN |
2351 				IXGBE_MDIO_GLOBAL_ALARM_1_INT)))
2352 		return status;
2353 
2354 	/* Global alarm triggered */
2355 	status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_ALARM_1,
2356 				      MDIO_MMD_VEND1,
2357 				      &reg);
2358 
2359 	if (status)
2360 		return status;
2361 
2362 	/* If high temperature failure, then return over temp error and exit */
2363 	if (reg & IXGBE_MDIO_GLOBAL_ALM_1_HI_TMP_FAIL) {
2364 		/* power down the PHY in case the PHY FW didn't already */
2365 		ixgbe_set_copper_phy_power(hw, false);
2366 		*is_overtemp = true;
2367 		return -EIO;
2368 	}
2369 	if (reg & IXGBE_MDIO_GLOBAL_ALM_1_DEV_FAULT) {
2370 		/*  device fault alarm triggered */
2371 		status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_FAULT_MSG,
2372 					  MDIO_MMD_VEND1,
2373 					  &reg);
2374 		if (status)
2375 			return status;
2376 
2377 		/* if device fault was due to high temp alarm handle and exit */
2378 		if (reg == IXGBE_MDIO_GLOBAL_FAULT_MSG_HI_TMP) {
2379 			/* power down the PHY in case the PHY FW didn't */
2380 			ixgbe_set_copper_phy_power(hw, false);
2381 			*is_overtemp = true;
2382 			return -EIO;
2383 		}
2384 	}
2385 
2386 	/* Vendor alarm 2 triggered */
2387 	status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_CHIP_STD_INT_FLAG,
2388 				      MDIO_MMD_AN, &reg);
2389 
2390 	if (status || !(reg & IXGBE_MDIO_GLOBAL_STD_ALM2_INT))
2391 		return status;
2392 
2393 	/* link connect/disconnect event occurred */
2394 	status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_VENDOR_TX_ALARM2,
2395 				      MDIO_MMD_AN, &reg);
2396 
2397 	if (status)
2398 		return status;
2399 
2400 	/* Indicate LSC */
2401 	if (reg & IXGBE_MDIO_AUTO_NEG_VEN_LSC)
2402 		*lsc = true;
2403 
2404 	return 0;
2405 }
2406 
2407 /**
2408  * ixgbe_enable_lasi_ext_t_x550em - Enable external Base T PHY interrupts
2409  * @hw: pointer to hardware structure
2410  *
2411  * Enable link status change and temperature failure alarm for the external
2412  * Base T PHY
2413  *
2414  * Returns PHY access status
2415  **/
2416 static s32 ixgbe_enable_lasi_ext_t_x550em(struct ixgbe_hw *hw)
2417 {
2418 	bool lsc, overtemp;
2419 	u32 status;
2420 	u16 reg;
2421 
2422 	/* Clear interrupt flags */
2423 	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc, &overtemp);
2424 
2425 	/* Enable link status change alarm */
2426 
2427 	/* Enable the LASI interrupts on X552 devices to receive notifications
2428 	 * of the link configurations of the external PHY and correspondingly
2429 	 * support the configuration of the internal iXFI link, since iXFI does
2430 	 * not support auto-negotiation. This is not required for X553 devices
2431 	 * having KR support, which performs auto-negotiations and which is used
2432 	 * as the internal link to the external PHY. Hence adding a check here
2433 	 * to avoid enabling LASI interrupts for X553 devices.
2434 	 */
2435 	if (hw->mac.type != ixgbe_mac_x550em_a) {
2436 		status = hw->phy.ops.read_reg(hw,
2437 					    IXGBE_MDIO_PMA_TX_VEN_LASI_INT_MASK,
2438 					    MDIO_MMD_AN, &reg);
2439 		if (status)
2440 			return status;
2441 
2442 		reg |= IXGBE_MDIO_PMA_TX_VEN_LASI_INT_EN;
2443 
2444 		status = hw->phy.ops.write_reg(hw,
2445 					    IXGBE_MDIO_PMA_TX_VEN_LASI_INT_MASK,
2446 					    MDIO_MMD_AN, reg);
2447 		if (status)
2448 			return status;
2449 	}
2450 
2451 	/* Enable high temperature failure and global fault alarms */
2452 	status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_INT_MASK,
2453 				      MDIO_MMD_VEND1,
2454 				      &reg);
2455 	if (status)
2456 		return status;
2457 
2458 	reg |= (IXGBE_MDIO_GLOBAL_INT_HI_TEMP_EN |
2459 		IXGBE_MDIO_GLOBAL_INT_DEV_FAULT_EN);
2460 
2461 	status = hw->phy.ops.write_reg(hw, IXGBE_MDIO_GLOBAL_INT_MASK,
2462 				       MDIO_MMD_VEND1,
2463 				       reg);
2464 	if (status)
2465 		return status;
2466 
2467 	/* Enable vendor Auto-Neg alarm and Global Interrupt Mask 1 alarm */
2468 	status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_VEN_MASK,
2469 				      MDIO_MMD_VEND1,
2470 				      &reg);
2471 	if (status)
2472 		return status;
2473 
2474 	reg |= (IXGBE_MDIO_GLOBAL_AN_VEN_ALM_INT_EN |
2475 		IXGBE_MDIO_GLOBAL_ALARM_1_INT);
2476 
2477 	status = hw->phy.ops.write_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_VEN_MASK,
2478 				       MDIO_MMD_VEND1,
2479 				       reg);
2480 	if (status)
2481 		return status;
2482 
2483 	/* Enable chip-wide vendor alarm */
2484 	status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_STD_MASK,
2485 				      MDIO_MMD_VEND1,
2486 				      &reg);
2487 	if (status)
2488 		return status;
2489 
2490 	reg |= IXGBE_MDIO_GLOBAL_VEN_ALM_INT_EN;
2491 
2492 	status = hw->phy.ops.write_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_STD_MASK,
2493 				       MDIO_MMD_VEND1,
2494 				       reg);
2495 
2496 	return status;
2497 }
2498 
2499 /**
2500  * ixgbe_handle_lasi_ext_t_x550em - Handle external Base T PHY interrupt
2501  * @hw: pointer to hardware structure
2502  * @is_overtemp: indicate whether an overtemp event encountered
2503  *
2504  * Handle external Base T PHY interrupt. If high temperature
2505  * failure alarm then return error, else if link status change
2506  * then setup internal/external PHY link
2507  **/
2508 static s32 ixgbe_handle_lasi_ext_t_x550em(struct ixgbe_hw *hw,
2509 					  bool *is_overtemp)
2510 {
2511 	struct ixgbe_phy_info *phy = &hw->phy;
2512 	bool lsc;
2513 	u32 status;
2514 
2515 	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc, is_overtemp);
2516 	if (status)
2517 		return status;
2518 
2519 	if (lsc && phy->ops.setup_internal_link)
2520 		return phy->ops.setup_internal_link(hw);
2521 
2522 	return 0;
2523 }
2524 
2525 /**
2526  * ixgbe_setup_kr_speed_x550em - Configure the KR PHY for link speed.
2527  * @hw: pointer to hardware structure
2528  * @speed: link speed
2529  *
2530  * Configures the integrated KR PHY.
2531  **/
2532 static s32 ixgbe_setup_kr_speed_x550em(struct ixgbe_hw *hw,
2533 				       ixgbe_link_speed speed)
2534 {
2535 	s32 status;
2536 	u32 reg_val;
2537 
2538 	status = hw->mac.ops.read_iosf_sb_reg(hw,
2539 					IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2540 					IXGBE_SB_IOSF_TARGET_KR_PHY, &reg_val);
2541 	if (status)
2542 		return status;
2543 
2544 	reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_ENABLE;
2545 	reg_val &= ~(IXGBE_KRM_LINK_CTRL_1_TETH_AN_CAP_KR |
2546 		     IXGBE_KRM_LINK_CTRL_1_TETH_AN_CAP_KX);
2547 
2548 	/* Advertise 10G support. */
2549 	if (speed & IXGBE_LINK_SPEED_10GB_FULL)
2550 		reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_CAP_KR;
2551 
2552 	/* Advertise 1G support. */
2553 	if (speed & IXGBE_LINK_SPEED_1GB_FULL)
2554 		reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_CAP_KX;
2555 
2556 	status = hw->mac.ops.write_iosf_sb_reg(hw,
2557 					IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2558 					IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
2559 
2560 	if (hw->mac.type == ixgbe_mac_x550em_a) {
2561 		/* Set lane mode  to KR auto negotiation */
2562 		status = hw->mac.ops.read_iosf_sb_reg(hw,
2563 				IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2564 				IXGBE_SB_IOSF_TARGET_KR_PHY, &reg_val);
2565 
2566 		if (status)
2567 			return status;
2568 
2569 		reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_MASK;
2570 		reg_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_AN;
2571 		reg_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_AN_EN;
2572 		reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_AN37_EN;
2573 		reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SGMII_EN;
2574 
2575 		status = hw->mac.ops.write_iosf_sb_reg(hw,
2576 				IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2577 				IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
2578 	}
2579 
2580 	return ixgbe_restart_an_internal_phy_x550em(hw);
2581 }
2582 
2583 /**
2584  * ixgbe_setup_kr_x550em - Configure the KR PHY
2585  * @hw: pointer to hardware structure
2586  **/
2587 static s32 ixgbe_setup_kr_x550em(struct ixgbe_hw *hw)
2588 {
2589 	/* leave link alone for 2.5G */
2590 	if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_2_5GB_FULL)
2591 		return 0;
2592 
2593 	if (ixgbe_check_reset_blocked(hw))
2594 		return 0;
2595 
2596 	return ixgbe_setup_kr_speed_x550em(hw, hw->phy.autoneg_advertised);
2597 }
2598 
2599 /** ixgbe_ext_phy_t_x550em_get_link - Get ext phy link status
2600  *  @hw: address of hardware structure
2601  *  @link_up: address of boolean to indicate link status
2602  *
2603  *  Returns error code if unable to get link status.
2604  **/
2605 static s32 ixgbe_ext_phy_t_x550em_get_link(struct ixgbe_hw *hw, bool *link_up)
2606 {
2607 	u32 ret;
2608 	u16 autoneg_status;
2609 
2610 	*link_up = false;
2611 
2612 	/* read this twice back to back to indicate current status */
2613 	ret = hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN,
2614 				   &autoneg_status);
2615 	if (ret)
2616 		return ret;
2617 
2618 	ret = hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN,
2619 				   &autoneg_status);
2620 	if (ret)
2621 		return ret;
2622 
2623 	*link_up = !!(autoneg_status & IXGBE_MDIO_AUTO_NEG_LINK_STATUS);
2624 
2625 	return 0;
2626 }
2627 
2628 /** ixgbe_setup_internal_phy_t_x550em - Configure KR PHY to X557 link
2629  *  @hw: point to hardware structure
2630  *
2631  *  Configures the link between the integrated KR PHY and the external X557 PHY
2632  *  The driver will call this function when it gets a link status change
2633  *  interrupt from the X557 PHY. This function configures the link speed
2634  *  between the PHYs to match the link speed of the BASE-T link.
2635  *
2636  * A return of a non-zero value indicates an error, and the base driver should
2637  * not report link up.
2638  **/
2639 static s32 ixgbe_setup_internal_phy_t_x550em(struct ixgbe_hw *hw)
2640 {
2641 	ixgbe_link_speed force_speed;
2642 	bool link_up;
2643 	u32 status;
2644 	u16 speed;
2645 
2646 	if (hw->mac.ops.get_media_type(hw) != ixgbe_media_type_copper)
2647 		return -EIO;
2648 
2649 	if (!(hw->mac.type == ixgbe_mac_X550EM_x &&
2650 	      !(hw->phy.nw_mng_if_sel & IXGBE_NW_MNG_IF_SEL_INT_PHY_MODE))) {
2651 		speed = IXGBE_LINK_SPEED_10GB_FULL |
2652 			IXGBE_LINK_SPEED_1GB_FULL;
2653 		return ixgbe_setup_kr_speed_x550em(hw, speed);
2654 	}
2655 
2656 	/* If link is not up, then there is no setup necessary so return  */
2657 	status = ixgbe_ext_phy_t_x550em_get_link(hw, &link_up);
2658 	if (status)
2659 		return status;
2660 
2661 	if (!link_up)
2662 		return 0;
2663 
2664 	status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_VENDOR_STAT,
2665 				      MDIO_MMD_AN,
2666 				      &speed);
2667 	if (status)
2668 		return status;
2669 
2670 	/* If link is not still up, then no setup is necessary so return */
2671 	status = ixgbe_ext_phy_t_x550em_get_link(hw, &link_up);
2672 	if (status)
2673 		return status;
2674 
2675 	if (!link_up)
2676 		return 0;
2677 
2678 	/* clear everything but the speed and duplex bits */
2679 	speed &= IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_MASK;
2680 
2681 	switch (speed) {
2682 	case IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_10GB_FULL:
2683 		force_speed = IXGBE_LINK_SPEED_10GB_FULL;
2684 		break;
2685 	case IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_1GB_FULL:
2686 		force_speed = IXGBE_LINK_SPEED_1GB_FULL;
2687 		break;
2688 	default:
2689 		/* Internal PHY does not support anything else */
2690 		return -EINVAL;
2691 	}
2692 
2693 	return ixgbe_setup_ixfi_x550em(hw, &force_speed);
2694 }
2695 
2696 /** ixgbe_reset_phy_t_X550em - Performs X557 PHY reset and enables LASI
2697  *  @hw: pointer to hardware structure
2698  **/
2699 static s32 ixgbe_reset_phy_t_X550em(struct ixgbe_hw *hw)
2700 {
2701 	s32 status;
2702 
2703 	status = ixgbe_reset_phy_generic(hw);
2704 
2705 	if (status)
2706 		return status;
2707 
2708 	/* Configure Link Status Alarm and Temperature Threshold interrupts */
2709 	return ixgbe_enable_lasi_ext_t_x550em(hw);
2710 }
2711 
2712 /**
2713  *  ixgbe_led_on_t_x550em - Turns on the software controllable LEDs.
2714  *  @hw: pointer to hardware structure
2715  *  @led_idx: led number to turn on
2716  **/
2717 static s32 ixgbe_led_on_t_x550em(struct ixgbe_hw *hw, u32 led_idx)
2718 {
2719 	u16 phy_data;
2720 
2721 	if (led_idx >= IXGBE_X557_MAX_LED_INDEX)
2722 		return -EINVAL;
2723 
2724 	/* To turn on the LED, set mode to ON. */
2725 	hw->phy.ops.read_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx,
2726 			     MDIO_MMD_VEND1, &phy_data);
2727 	phy_data |= IXGBE_X557_LED_MANUAL_SET_MASK;
2728 	hw->phy.ops.write_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx,
2729 			      MDIO_MMD_VEND1, phy_data);
2730 
2731 	return 0;
2732 }
2733 
2734 /**
2735  *  ixgbe_led_off_t_x550em - Turns off the software controllable LEDs.
2736  *  @hw: pointer to hardware structure
2737  *  @led_idx: led number to turn off
2738  **/
2739 static s32 ixgbe_led_off_t_x550em(struct ixgbe_hw *hw, u32 led_idx)
2740 {
2741 	u16 phy_data;
2742 
2743 	if (led_idx >= IXGBE_X557_MAX_LED_INDEX)
2744 		return -EINVAL;
2745 
2746 	/* To turn on the LED, set mode to ON. */
2747 	hw->phy.ops.read_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx,
2748 			     MDIO_MMD_VEND1, &phy_data);
2749 	phy_data &= ~IXGBE_X557_LED_MANUAL_SET_MASK;
2750 	hw->phy.ops.write_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx,
2751 			      MDIO_MMD_VEND1, phy_data);
2752 
2753 	return 0;
2754 }
2755 
2756 /**
2757  *  ixgbe_set_fw_drv_ver_x550 - Sends driver version to firmware
2758  *  @hw: pointer to the HW structure
2759  *  @maj: driver version major number
2760  *  @min: driver version minor number
2761  *  @build: driver version build number
2762  *  @sub: driver version sub build number
2763  *  @len: length of driver_ver string
2764  *  @driver_ver: driver string
2765  *
2766  *  Sends driver version number to firmware through the manageability
2767  *  block.  On success return 0
2768  *  else returns -EBUSY when encountering an error acquiring
2769  *  semaphore, -EIO when command fails or -ENIVAL when incorrect
2770  *  params passed.
2771  **/
2772 static s32 ixgbe_set_fw_drv_ver_x550(struct ixgbe_hw *hw, u8 maj, u8 min,
2773 				     u8 build, u8 sub, u16 len,
2774 				     const char *driver_ver)
2775 {
2776 	struct ixgbe_hic_drv_info2 fw_cmd;
2777 	s32 ret_val;
2778 	int i;
2779 
2780 	if (!len || !driver_ver || (len > sizeof(fw_cmd.driver_string)))
2781 		return -EINVAL;
2782 
2783 	fw_cmd.hdr.cmd = FW_CEM_CMD_DRIVER_INFO;
2784 	fw_cmd.hdr.buf_len = FW_CEM_CMD_DRIVER_INFO_LEN + len;
2785 	fw_cmd.hdr.cmd_or_resp.cmd_resv = FW_CEM_CMD_RESERVED;
2786 	fw_cmd.port_num = (u8)hw->bus.func;
2787 	fw_cmd.ver_maj = maj;
2788 	fw_cmd.ver_min = min;
2789 	fw_cmd.ver_build = build;
2790 	fw_cmd.ver_sub = sub;
2791 	fw_cmd.hdr.checksum = 0;
2792 	memcpy(fw_cmd.driver_string, driver_ver, len);
2793 	fw_cmd.hdr.checksum = ixgbe_calculate_checksum((u8 *)&fw_cmd,
2794 			      (FW_CEM_HDR_LEN + fw_cmd.hdr.buf_len));
2795 
2796 	for (i = 0; i <= FW_CEM_MAX_RETRIES; i++) {
2797 		ret_val = ixgbe_host_interface_command(hw, (u32 *)&fw_cmd,
2798 						       sizeof(fw_cmd),
2799 						       IXGBE_HI_COMMAND_TIMEOUT,
2800 						       true);
2801 		if (ret_val)
2802 			continue;
2803 
2804 		if (fw_cmd.hdr.cmd_or_resp.ret_status !=
2805 		    FW_CEM_RESP_STATUS_SUCCESS)
2806 			return -EIO;
2807 		return 0;
2808 	}
2809 
2810 	return ret_val;
2811 }
2812 
2813 /** ixgbe_get_lcd_x550em - Determine lowest common denominator
2814  *  @hw: pointer to hardware structure
2815  *  @lcd_speed: pointer to lowest common link speed
2816  *
2817  *  Determine lowest common link speed with link partner.
2818  **/
2819 static s32 ixgbe_get_lcd_t_x550em(struct ixgbe_hw *hw,
2820 				  ixgbe_link_speed *lcd_speed)
2821 {
2822 	u16 an_lp_status;
2823 	s32 status;
2824 	u16 word = hw->eeprom.ctrl_word_3;
2825 
2826 	*lcd_speed = IXGBE_LINK_SPEED_UNKNOWN;
2827 
2828 	status = hw->phy.ops.read_reg(hw, IXGBE_AUTO_NEG_LP_STATUS,
2829 				      MDIO_MMD_AN,
2830 				      &an_lp_status);
2831 	if (status)
2832 		return status;
2833 
2834 	/* If link partner advertised 1G, return 1G */
2835 	if (an_lp_status & IXGBE_AUTO_NEG_LP_1000BASE_CAP) {
2836 		*lcd_speed = IXGBE_LINK_SPEED_1GB_FULL;
2837 		return status;
2838 	}
2839 
2840 	/* If 10G disabled for LPLU via NVM D10GMP, then return no valid LCD */
2841 	if ((hw->bus.lan_id && (word & NVM_INIT_CTRL_3_D10GMP_PORT1)) ||
2842 	    (word & NVM_INIT_CTRL_3_D10GMP_PORT0))
2843 		return status;
2844 
2845 	/* Link partner not capable of lower speeds, return 10G */
2846 	*lcd_speed = IXGBE_LINK_SPEED_10GB_FULL;
2847 	return status;
2848 }
2849 
2850 /**
2851  * ixgbe_setup_fc_x550em - Set up flow control
2852  * @hw: pointer to hardware structure
2853  */
2854 static s32 ixgbe_setup_fc_x550em(struct ixgbe_hw *hw)
2855 {
2856 	bool pause, asm_dir;
2857 	u32 reg_val;
2858 	s32 rc = 0;
2859 
2860 	/* Validate the requested mode */
2861 	if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
2862 		hw_err(hw, "ixgbe_fc_rx_pause not valid in strict IEEE mode\n");
2863 		return -EINVAL;
2864 	}
2865 
2866 	/* 10gig parts do not have a word in the EEPROM to determine the
2867 	 * default flow control setting, so we explicitly set it to full.
2868 	 */
2869 	if (hw->fc.requested_mode == ixgbe_fc_default)
2870 		hw->fc.requested_mode = ixgbe_fc_full;
2871 
2872 	/* Determine PAUSE and ASM_DIR bits. */
2873 	switch (hw->fc.requested_mode) {
2874 	case ixgbe_fc_none:
2875 		pause = false;
2876 		asm_dir = false;
2877 		break;
2878 	case ixgbe_fc_tx_pause:
2879 		pause = false;
2880 		asm_dir = true;
2881 		break;
2882 	case ixgbe_fc_rx_pause:
2883 		/* Rx Flow control is enabled and Tx Flow control is
2884 		 * disabled by software override. Since there really
2885 		 * isn't a way to advertise that we are capable of RX
2886 		 * Pause ONLY, we will advertise that we support both
2887 		 * symmetric and asymmetric Rx PAUSE, as such we fall
2888 		 * through to the fc_full statement.  Later, we will
2889 		 * disable the adapter's ability to send PAUSE frames.
2890 		 */
2891 		fallthrough;
2892 	case ixgbe_fc_full:
2893 		pause = true;
2894 		asm_dir = true;
2895 		break;
2896 	default:
2897 		hw_err(hw, "Flow control param set incorrectly\n");
2898 		return -EIO;
2899 	}
2900 
2901 	switch (hw->device_id) {
2902 	case IXGBE_DEV_ID_X550EM_X_KR:
2903 	case IXGBE_DEV_ID_X550EM_A_KR:
2904 	case IXGBE_DEV_ID_X550EM_A_KR_L:
2905 		rc = hw->mac.ops.read_iosf_sb_reg(hw,
2906 					    IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
2907 					    IXGBE_SB_IOSF_TARGET_KR_PHY,
2908 					    &reg_val);
2909 		if (rc)
2910 			return rc;
2911 
2912 		reg_val &= ~(IXGBE_KRM_AN_CNTL_1_SYM_PAUSE |
2913 			     IXGBE_KRM_AN_CNTL_1_ASM_PAUSE);
2914 		if (pause)
2915 			reg_val |= IXGBE_KRM_AN_CNTL_1_SYM_PAUSE;
2916 		if (asm_dir)
2917 			reg_val |= IXGBE_KRM_AN_CNTL_1_ASM_PAUSE;
2918 		rc = hw->mac.ops.write_iosf_sb_reg(hw,
2919 					    IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
2920 					    IXGBE_SB_IOSF_TARGET_KR_PHY,
2921 					    reg_val);
2922 
2923 		/* This device does not fully support AN. */
2924 		hw->fc.disable_fc_autoneg = true;
2925 		break;
2926 	case IXGBE_DEV_ID_X550EM_X_XFI:
2927 		hw->fc.disable_fc_autoneg = true;
2928 		break;
2929 	default:
2930 		break;
2931 	}
2932 	return rc;
2933 }
2934 
2935 /**
2936  *  ixgbe_fc_autoneg_backplane_x550em_a - Enable flow control IEEE clause 37
2937  *  @hw: pointer to hardware structure
2938  **/
2939 static void ixgbe_fc_autoneg_backplane_x550em_a(struct ixgbe_hw *hw)
2940 {
2941 	u32 link_s1, lp_an_page_low, an_cntl_1;
2942 	ixgbe_link_speed speed;
2943 	s32 status = -EIO;
2944 	bool link_up;
2945 
2946 	/* AN should have completed when the cable was plugged in.
2947 	 * Look for reasons to bail out.  Bail out if:
2948 	 * - FC autoneg is disabled, or if
2949 	 * - link is not up.
2950 	 */
2951 	if (hw->fc.disable_fc_autoneg) {
2952 		hw_err(hw, "Flow control autoneg is disabled");
2953 		goto out;
2954 	}
2955 
2956 	hw->mac.ops.check_link(hw, &speed, &link_up, false);
2957 	if (!link_up) {
2958 		hw_err(hw, "The link is down");
2959 		goto out;
2960 	}
2961 
2962 	/* Check at auto-negotiation has completed */
2963 	status = hw->mac.ops.read_iosf_sb_reg(hw,
2964 					IXGBE_KRM_LINK_S1(hw->bus.lan_id),
2965 					IXGBE_SB_IOSF_TARGET_KR_PHY, &link_s1);
2966 
2967 	if (status || (link_s1 & IXGBE_KRM_LINK_S1_MAC_AN_COMPLETE) == 0) {
2968 		hw_dbg(hw, "Auto-Negotiation did not complete\n");
2969 		status = -EIO;
2970 		goto out;
2971 	}
2972 
2973 	/* Read the 10g AN autoc and LP ability registers and resolve
2974 	 * local flow control settings accordingly
2975 	 */
2976 	status = hw->mac.ops.read_iosf_sb_reg(hw,
2977 				IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
2978 				IXGBE_SB_IOSF_TARGET_KR_PHY, &an_cntl_1);
2979 
2980 	if (status) {
2981 		hw_dbg(hw, "Auto-Negotiation did not complete\n");
2982 		goto out;
2983 	}
2984 
2985 	status = hw->mac.ops.read_iosf_sb_reg(hw,
2986 				IXGBE_KRM_LP_BASE_PAGE_HIGH(hw->bus.lan_id),
2987 				IXGBE_SB_IOSF_TARGET_KR_PHY, &lp_an_page_low);
2988 
2989 	if (status) {
2990 		hw_dbg(hw, "Auto-Negotiation did not complete\n");
2991 		goto out;
2992 	}
2993 
2994 	status = ixgbe_negotiate_fc(hw, an_cntl_1, lp_an_page_low,
2995 				    IXGBE_KRM_AN_CNTL_1_SYM_PAUSE,
2996 				    IXGBE_KRM_AN_CNTL_1_ASM_PAUSE,
2997 				    IXGBE_KRM_LP_BASE_PAGE_HIGH_SYM_PAUSE,
2998 				    IXGBE_KRM_LP_BASE_PAGE_HIGH_ASM_PAUSE);
2999 
3000 out:
3001 	if (!status) {
3002 		hw->fc.fc_was_autonegged = true;
3003 	} else {
3004 		hw->fc.fc_was_autonegged = false;
3005 		hw->fc.current_mode = hw->fc.requested_mode;
3006 	}
3007 }
3008 
3009 /**
3010  *  ixgbe_fc_autoneg_fiber_x550em_a - passthrough FC settings
3011  *  @hw: pointer to hardware structure
3012  **/
3013 static void ixgbe_fc_autoneg_fiber_x550em_a(struct ixgbe_hw *hw)
3014 {
3015 	hw->fc.fc_was_autonegged = false;
3016 	hw->fc.current_mode = hw->fc.requested_mode;
3017 }
3018 
3019 /** ixgbe_enter_lplu_x550em - Transition to low power states
3020  *  @hw: pointer to hardware structure
3021  *
3022  *  Configures Low Power Link Up on transition to low power states
3023  *  (from D0 to non-D0). Link is required to enter LPLU so avoid resetting
3024  *  the X557 PHY immediately prior to entering LPLU.
3025  **/
3026 static s32 ixgbe_enter_lplu_t_x550em(struct ixgbe_hw *hw)
3027 {
3028 	u16 an_10g_cntl_reg, autoneg_reg, speed;
3029 	s32 status;
3030 	ixgbe_link_speed lcd_speed;
3031 	u32 save_autoneg;
3032 	bool link_up;
3033 
3034 	/* If blocked by MNG FW, then don't restart AN */
3035 	if (ixgbe_check_reset_blocked(hw))
3036 		return 0;
3037 
3038 	status = ixgbe_ext_phy_t_x550em_get_link(hw, &link_up);
3039 	if (status)
3040 		return status;
3041 
3042 	status = hw->eeprom.ops.read(hw, NVM_INIT_CTRL_3,
3043 				     &hw->eeprom.ctrl_word_3);
3044 	if (status)
3045 		return status;
3046 
3047 	/* If link is down, LPLU disabled in NVM, WoL disabled, or
3048 	 * manageability disabled, then force link down by entering
3049 	 * low power mode.
3050 	 */
3051 	if (!link_up || !(hw->eeprom.ctrl_word_3 & NVM_INIT_CTRL_3_LPLU) ||
3052 	    !(hw->wol_enabled || ixgbe_mng_present(hw)))
3053 		return ixgbe_set_copper_phy_power(hw, false);
3054 
3055 	/* Determine LCD */
3056 	status = ixgbe_get_lcd_t_x550em(hw, &lcd_speed);
3057 	if (status)
3058 		return status;
3059 
3060 	/* If no valid LCD link speed, then force link down and exit. */
3061 	if (lcd_speed == IXGBE_LINK_SPEED_UNKNOWN)
3062 		return ixgbe_set_copper_phy_power(hw, false);
3063 
3064 	status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_VENDOR_STAT,
3065 				      MDIO_MMD_AN,
3066 				      &speed);
3067 	if (status)
3068 		return status;
3069 
3070 	/* If no link now, speed is invalid so take link down */
3071 	status = ixgbe_ext_phy_t_x550em_get_link(hw, &link_up);
3072 	if (status)
3073 		return ixgbe_set_copper_phy_power(hw, false);
3074 
3075 	/* clear everything but the speed bits */
3076 	speed &= IXGBE_MDIO_AUTO_NEG_VEN_STAT_SPEED_MASK;
3077 
3078 	/* If current speed is already LCD, then exit. */
3079 	if (((speed == IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_1GB) &&
3080 	     (lcd_speed == IXGBE_LINK_SPEED_1GB_FULL)) ||
3081 	    ((speed == IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_10GB) &&
3082 	     (lcd_speed == IXGBE_LINK_SPEED_10GB_FULL)))
3083 		return status;
3084 
3085 	/* Clear AN completed indication */
3086 	status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_VENDOR_TX_ALARM,
3087 				      MDIO_MMD_AN,
3088 				      &autoneg_reg);
3089 	if (status)
3090 		return status;
3091 
3092 	status = hw->phy.ops.read_reg(hw, MDIO_AN_10GBT_CTRL,
3093 				      MDIO_MMD_AN,
3094 				      &an_10g_cntl_reg);
3095 	if (status)
3096 		return status;
3097 
3098 	status = hw->phy.ops.read_reg(hw,
3099 				      IXGBE_MII_AUTONEG_VENDOR_PROVISION_1_REG,
3100 				      MDIO_MMD_AN,
3101 				      &autoneg_reg);
3102 	if (status)
3103 		return status;
3104 
3105 	save_autoneg = hw->phy.autoneg_advertised;
3106 
3107 	/* Setup link at least common link speed */
3108 	status = hw->mac.ops.setup_link(hw, lcd_speed, false);
3109 
3110 	/* restore autoneg from before setting lplu speed */
3111 	hw->phy.autoneg_advertised = save_autoneg;
3112 
3113 	return status;
3114 }
3115 
3116 /**
3117  * ixgbe_reset_phy_fw - Reset firmware-controlled PHYs
3118  * @hw: pointer to hardware structure
3119  */
3120 static s32 ixgbe_reset_phy_fw(struct ixgbe_hw *hw)
3121 {
3122 	u32 store[FW_PHY_ACT_DATA_COUNT] = { 0 };
3123 	s32 rc;
3124 
3125 	if (hw->phy.reset_disable || ixgbe_check_reset_blocked(hw))
3126 		return 0;
3127 
3128 	rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_PHY_SW_RESET, &store);
3129 	if (rc)
3130 		return rc;
3131 	memset(store, 0, sizeof(store));
3132 
3133 	rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_INIT_PHY, &store);
3134 	if (rc)
3135 		return rc;
3136 
3137 	return ixgbe_setup_fw_link(hw);
3138 }
3139 
3140 /**
3141  * ixgbe_check_overtemp_fw - Check firmware-controlled PHYs for overtemp
3142  * @hw: pointer to hardware structure
3143  *
3144  * Return true when an overtemp event detected, otherwise false.
3145  */
3146 static bool ixgbe_check_overtemp_fw(struct ixgbe_hw *hw)
3147 {
3148 	u32 store[FW_PHY_ACT_DATA_COUNT] = { 0 };
3149 	s32 rc;
3150 
3151 	rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_GET_LINK_INFO, &store);
3152 	if (rc)
3153 		return false;
3154 
3155 	if (store[0] & FW_PHY_ACT_GET_LINK_INFO_TEMP) {
3156 		ixgbe_shutdown_fw_phy(hw);
3157 		return true;
3158 	}
3159 	return false;
3160 }
3161 
3162 /**
3163  * ixgbe_read_mng_if_sel_x550em - Read NW_MNG_IF_SEL register
3164  * @hw: pointer to hardware structure
3165  *
3166  * Read NW_MNG_IF_SEL register and save field values.
3167  */
3168 static void ixgbe_read_mng_if_sel_x550em(struct ixgbe_hw *hw)
3169 {
3170 	/* Save NW management interface connected on board. This is used
3171 	 * to determine internal PHY mode.
3172 	 */
3173 	hw->phy.nw_mng_if_sel = IXGBE_READ_REG(hw, IXGBE_NW_MNG_IF_SEL);
3174 
3175 	/* If X552 (X550EM_a) and MDIO is connected to external PHY, then set
3176 	 * PHY address. This register field was has only been used for X552.
3177 	 */
3178 	if (hw->mac.type == ixgbe_mac_x550em_a &&
3179 	    hw->phy.nw_mng_if_sel & IXGBE_NW_MNG_IF_SEL_MDIO_ACT) {
3180 		hw->phy.mdio.prtad = FIELD_GET(IXGBE_NW_MNG_IF_SEL_MDIO_PHY_ADD,
3181 					       hw->phy.nw_mng_if_sel);
3182 	}
3183 }
3184 
3185 /** ixgbe_init_phy_ops_X550em - PHY/SFP specific init
3186  *  @hw: pointer to hardware structure
3187  *
3188  *  Initialize any function pointers that were not able to be
3189  *  set during init_shared_code because the PHY/SFP type was
3190  *  not known.  Perform the SFP init if necessary.
3191  **/
3192 static s32 ixgbe_init_phy_ops_X550em(struct ixgbe_hw *hw)
3193 {
3194 	struct ixgbe_phy_info *phy = &hw->phy;
3195 	s32 ret_val;
3196 
3197 	hw->mac.ops.set_lan_id(hw);
3198 
3199 	ixgbe_read_mng_if_sel_x550em(hw);
3200 
3201 	if (hw->mac.ops.get_media_type(hw) == ixgbe_media_type_fiber) {
3202 		phy->phy_semaphore_mask = IXGBE_GSSR_SHARED_I2C_SM;
3203 		ixgbe_setup_mux_ctl(hw);
3204 	}
3205 
3206 	/* Identify the PHY or SFP module */
3207 	ret_val = phy->ops.identify(hw);
3208 	if (ret_val == -EOPNOTSUPP || ret_val == -EFAULT)
3209 		return ret_val;
3210 
3211 	/* Setup function pointers based on detected hardware */
3212 	ixgbe_init_mac_link_ops_X550em(hw);
3213 	if (phy->sfp_type != ixgbe_sfp_type_unknown)
3214 		phy->ops.reset = NULL;
3215 
3216 	/* Set functions pointers based on phy type */
3217 	switch (hw->phy.type) {
3218 	case ixgbe_phy_x550em_kx4:
3219 		phy->ops.setup_link = NULL;
3220 		phy->ops.read_reg = ixgbe_read_phy_reg_x550em;
3221 		phy->ops.write_reg = ixgbe_write_phy_reg_x550em;
3222 		break;
3223 	case ixgbe_phy_x550em_kr:
3224 		phy->ops.setup_link = ixgbe_setup_kr_x550em;
3225 		phy->ops.read_reg = ixgbe_read_phy_reg_x550em;
3226 		phy->ops.write_reg = ixgbe_write_phy_reg_x550em;
3227 		break;
3228 	case ixgbe_phy_x550em_xfi:
3229 		/* link is managed by HW */
3230 		phy->ops.setup_link = NULL;
3231 		phy->ops.read_reg = ixgbe_read_phy_reg_x550em;
3232 		phy->ops.write_reg = ixgbe_write_phy_reg_x550em;
3233 		break;
3234 	case ixgbe_phy_x550em_ext_t:
3235 		/* Save NW management interface connected on board. This is used
3236 		 * to determine internal PHY mode
3237 		 */
3238 		phy->nw_mng_if_sel = IXGBE_READ_REG(hw, IXGBE_NW_MNG_IF_SEL);
3239 
3240 		/* If internal link mode is XFI, then setup iXFI internal link,
3241 		 * else setup KR now.
3242 		 */
3243 		phy->ops.setup_internal_link =
3244 					      ixgbe_setup_internal_phy_t_x550em;
3245 
3246 		/* setup SW LPLU only for first revision */
3247 		if (hw->mac.type == ixgbe_mac_X550EM_x &&
3248 		    !(IXGBE_READ_REG(hw, IXGBE_FUSES0_GROUP(0)) &
3249 		      IXGBE_FUSES0_REV_MASK))
3250 			phy->ops.enter_lplu = ixgbe_enter_lplu_t_x550em;
3251 
3252 		phy->ops.handle_lasi = ixgbe_handle_lasi_ext_t_x550em;
3253 		phy->ops.reset = ixgbe_reset_phy_t_X550em;
3254 		break;
3255 	case ixgbe_phy_sgmii:
3256 		phy->ops.setup_link = NULL;
3257 		break;
3258 	case ixgbe_phy_fw:
3259 		phy->ops.setup_link = ixgbe_setup_fw_link;
3260 		phy->ops.reset = ixgbe_reset_phy_fw;
3261 		break;
3262 	case ixgbe_phy_ext_1g_t:
3263 		phy->ops.setup_link = NULL;
3264 		phy->ops.read_reg = NULL;
3265 		phy->ops.write_reg = NULL;
3266 		phy->ops.reset = NULL;
3267 		break;
3268 	default:
3269 		break;
3270 	}
3271 
3272 	return ret_val;
3273 }
3274 
3275 /** ixgbe_get_media_type_X550em - Get media type
3276  *  @hw: pointer to hardware structure
3277  *
3278  *  Returns the media type (fiber, copper, backplane)
3279  *
3280  */
3281 static enum ixgbe_media_type ixgbe_get_media_type_X550em(struct ixgbe_hw *hw)
3282 {
3283 	enum ixgbe_media_type media_type;
3284 
3285 	/* Detect if there is a copper PHY attached. */
3286 	switch (hw->device_id) {
3287 	case IXGBE_DEV_ID_X550EM_A_SGMII:
3288 	case IXGBE_DEV_ID_X550EM_A_SGMII_L:
3289 		hw->phy.type = ixgbe_phy_sgmii;
3290 		fallthrough;
3291 	case IXGBE_DEV_ID_X550EM_X_KR:
3292 	case IXGBE_DEV_ID_X550EM_X_KX4:
3293 	case IXGBE_DEV_ID_X550EM_X_XFI:
3294 	case IXGBE_DEV_ID_X550EM_A_KR:
3295 	case IXGBE_DEV_ID_X550EM_A_KR_L:
3296 		media_type = ixgbe_media_type_backplane;
3297 		break;
3298 	case IXGBE_DEV_ID_X550EM_X_SFP:
3299 	case IXGBE_DEV_ID_X550EM_A_SFP:
3300 	case IXGBE_DEV_ID_X550EM_A_SFP_N:
3301 		media_type = ixgbe_media_type_fiber;
3302 		break;
3303 	case IXGBE_DEV_ID_X550EM_X_1G_T:
3304 	case IXGBE_DEV_ID_X550EM_X_10G_T:
3305 	case IXGBE_DEV_ID_X550EM_A_10G_T:
3306 	case IXGBE_DEV_ID_X550EM_A_1G_T:
3307 	case IXGBE_DEV_ID_X550EM_A_1G_T_L:
3308 		media_type = ixgbe_media_type_copper;
3309 		break;
3310 	default:
3311 		media_type = ixgbe_media_type_unknown;
3312 		break;
3313 	}
3314 	return media_type;
3315 }
3316 
3317 /** ixgbe_init_ext_t_x550em - Start (unstall) the external Base T PHY.
3318  ** @hw: pointer to hardware structure
3319  **/
3320 static s32 ixgbe_init_ext_t_x550em(struct ixgbe_hw *hw)
3321 {
3322 	s32 status;
3323 	u16 reg;
3324 
3325 	status = hw->phy.ops.read_reg(hw,
3326 				      IXGBE_MDIO_TX_VENDOR_ALARMS_3,
3327 				      MDIO_MMD_PMAPMD,
3328 				      &reg);
3329 	if (status)
3330 		return status;
3331 
3332 	/* If PHY FW reset completed bit is set then this is the first
3333 	 * SW instance after a power on so the PHY FW must be un-stalled.
3334 	 */
3335 	if (reg & IXGBE_MDIO_TX_VENDOR_ALARMS_3_RST_MASK) {
3336 		status = hw->phy.ops.read_reg(hw,
3337 					IXGBE_MDIO_GLOBAL_RES_PR_10,
3338 					MDIO_MMD_VEND1,
3339 					&reg);
3340 		if (status)
3341 			return status;
3342 
3343 		reg &= ~IXGBE_MDIO_POWER_UP_STALL;
3344 
3345 		status = hw->phy.ops.write_reg(hw,
3346 					IXGBE_MDIO_GLOBAL_RES_PR_10,
3347 					MDIO_MMD_VEND1,
3348 					reg);
3349 		if (status)
3350 			return status;
3351 	}
3352 
3353 	return status;
3354 }
3355 
3356 /**
3357  * ixgbe_set_mdio_speed - Set MDIO clock speed
3358  * @hw: pointer to hardware structure
3359  */
3360 static void ixgbe_set_mdio_speed(struct ixgbe_hw *hw)
3361 {
3362 	u32 hlreg0;
3363 
3364 	switch (hw->device_id) {
3365 	case IXGBE_DEV_ID_X550EM_X_10G_T:
3366 	case IXGBE_DEV_ID_X550EM_A_SGMII:
3367 	case IXGBE_DEV_ID_X550EM_A_SGMII_L:
3368 	case IXGBE_DEV_ID_X550EM_A_10G_T:
3369 	case IXGBE_DEV_ID_X550EM_A_SFP:
3370 		/* Config MDIO clock speed before the first MDIO PHY access */
3371 		hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0);
3372 		hlreg0 &= ~IXGBE_HLREG0_MDCSPD;
3373 		IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0);
3374 		break;
3375 	case IXGBE_DEV_ID_X550EM_A_1G_T:
3376 	case IXGBE_DEV_ID_X550EM_A_1G_T_L:
3377 		/* Select fast MDIO clock speed for these devices */
3378 		hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0);
3379 		hlreg0 |= IXGBE_HLREG0_MDCSPD;
3380 		IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0);
3381 		break;
3382 	default:
3383 		break;
3384 	}
3385 }
3386 
3387 /**  ixgbe_reset_hw_X550em - Perform hardware reset
3388  **  @hw: pointer to hardware structure
3389  **
3390  **  Resets the hardware by resetting the transmit and receive units, masks
3391  **  and clears all interrupts, perform a PHY reset, and perform a link (MAC)
3392  **  reset.
3393  **/
3394 static s32 ixgbe_reset_hw_X550em(struct ixgbe_hw *hw)
3395 {
3396 	ixgbe_link_speed link_speed;
3397 	s32 status;
3398 	u32 ctrl = 0;
3399 	u32 i;
3400 	bool link_up = false;
3401 	u32 swfw_mask = hw->phy.phy_semaphore_mask;
3402 
3403 	/* Call adapter stop to disable Tx/Rx and clear interrupts */
3404 	status = hw->mac.ops.stop_adapter(hw);
3405 	if (status)
3406 		return status;
3407 
3408 	/* flush pending Tx transactions */
3409 	ixgbe_clear_tx_pending(hw);
3410 
3411 	/* set MDIO speed before talking to the PHY in case it's the 1st time */
3412 	ixgbe_set_mdio_speed(hw);
3413 
3414 	/* PHY ops must be identified and initialized prior to reset */
3415 	status = hw->phy.ops.init(hw);
3416 	if (status == -EOPNOTSUPP || status == -EFAULT)
3417 		return status;
3418 
3419 	/* start the external PHY */
3420 	if (hw->phy.type == ixgbe_phy_x550em_ext_t) {
3421 		status = ixgbe_init_ext_t_x550em(hw);
3422 		if (status)
3423 			return status;
3424 	}
3425 
3426 	/* Setup SFP module if there is one present. */
3427 	if (hw->phy.sfp_setup_needed) {
3428 		status = hw->mac.ops.setup_sfp(hw);
3429 		hw->phy.sfp_setup_needed = false;
3430 	}
3431 
3432 	if (status == -EOPNOTSUPP)
3433 		return status;
3434 
3435 	/* Reset PHY */
3436 	if (!hw->phy.reset_disable && hw->phy.ops.reset)
3437 		hw->phy.ops.reset(hw);
3438 
3439 mac_reset_top:
3440 	/* Issue global reset to the MAC.  Needs to be SW reset if link is up.
3441 	 * If link reset is used when link is up, it might reset the PHY when
3442 	 * mng is using it.  If link is down or the flag to force full link
3443 	 * reset is set, then perform link reset.
3444 	 */
3445 	ctrl = IXGBE_CTRL_LNK_RST;
3446 
3447 	if (!hw->force_full_reset) {
3448 		hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
3449 		if (link_up)
3450 			ctrl = IXGBE_CTRL_RST;
3451 	}
3452 
3453 	status = hw->mac.ops.acquire_swfw_sync(hw, swfw_mask);
3454 	if (status) {
3455 		hw_dbg(hw, "semaphore failed with %d", status);
3456 		return -EBUSY;
3457 	}
3458 
3459 	ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL);
3460 	IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
3461 	IXGBE_WRITE_FLUSH(hw);
3462 	hw->mac.ops.release_swfw_sync(hw, swfw_mask);
3463 	usleep_range(1000, 1200);
3464 
3465 	/* Poll for reset bit to self-clear meaning reset is complete */
3466 	for (i = 0; i < 10; i++) {
3467 		ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
3468 		if (!(ctrl & IXGBE_CTRL_RST_MASK))
3469 			break;
3470 		udelay(1);
3471 	}
3472 
3473 	if (ctrl & IXGBE_CTRL_RST_MASK) {
3474 		status = -EIO;
3475 		hw_dbg(hw, "Reset polling failed to complete.\n");
3476 	}
3477 
3478 	msleep(50);
3479 
3480 	/* Double resets are required for recovery from certain error
3481 	 * clear the multicast table.  Also reset num_rar_entries to 128,
3482 	 * since we modify this value when programming the SAN MAC address.
3483 	 */
3484 	if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
3485 		hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
3486 		goto mac_reset_top;
3487 	}
3488 
3489 	/* Store the permanent mac address */
3490 	hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
3491 
3492 	/* Store MAC address from RAR0, clear receive address registers, and
3493 	 * clear the multicast table.  Also reset num_rar_entries to 128,
3494 	 * since we modify this value when programming the SAN MAC address.
3495 	 */
3496 	hw->mac.num_rar_entries = 128;
3497 	hw->mac.ops.init_rx_addrs(hw);
3498 
3499 	ixgbe_set_mdio_speed(hw);
3500 
3501 	if (hw->device_id == IXGBE_DEV_ID_X550EM_X_SFP)
3502 		ixgbe_setup_mux_ctl(hw);
3503 
3504 	return status;
3505 }
3506 
3507 /** ixgbe_set_ethertype_anti_spoofing_X550 - Enable/Disable Ethertype
3508  *	anti-spoofing
3509  *  @hw:  pointer to hardware structure
3510  *  @enable: enable or disable switch for Ethertype anti-spoofing
3511  *  @vf: Virtual Function pool - VF Pool to set for Ethertype anti-spoofing
3512  **/
3513 static void ixgbe_set_ethertype_anti_spoofing_X550(struct ixgbe_hw *hw,
3514 						   bool enable, int vf)
3515 {
3516 	int vf_target_reg = vf >> 3;
3517 	int vf_target_shift = vf % 8 + IXGBE_SPOOF_ETHERTYPEAS_SHIFT;
3518 	u32 pfvfspoof;
3519 
3520 	pfvfspoof = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg));
3521 	if (enable)
3522 		pfvfspoof |= BIT(vf_target_shift);
3523 	else
3524 		pfvfspoof &= ~BIT(vf_target_shift);
3525 
3526 	IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), pfvfspoof);
3527 }
3528 
3529 /** ixgbe_set_source_address_pruning_X550 - Enable/Disbale src address pruning
3530  *  @hw: pointer to hardware structure
3531  *  @enable: enable or disable source address pruning
3532  *  @pool: Rx pool to set source address pruning for
3533  **/
3534 static void ixgbe_set_source_address_pruning_X550(struct ixgbe_hw *hw,
3535 						  bool enable,
3536 						  unsigned int pool)
3537 {
3538 	u64 pfflp;
3539 
3540 	/* max rx pool is 63 */
3541 	if (pool > 63)
3542 		return;
3543 
3544 	pfflp = (u64)IXGBE_READ_REG(hw, IXGBE_PFFLPL);
3545 	pfflp |= (u64)IXGBE_READ_REG(hw, IXGBE_PFFLPH) << 32;
3546 
3547 	if (enable)
3548 		pfflp |= (1ULL << pool);
3549 	else
3550 		pfflp &= ~(1ULL << pool);
3551 
3552 	IXGBE_WRITE_REG(hw, IXGBE_PFFLPL, (u32)pfflp);
3553 	IXGBE_WRITE_REG(hw, IXGBE_PFFLPH, (u32)(pfflp >> 32));
3554 }
3555 
3556 /**
3557  *  ixgbe_setup_fc_backplane_x550em_a - Set up flow control
3558  *  @hw: pointer to hardware structure
3559  *
3560  *  Called at init time to set up flow control.
3561  **/
3562 static s32 ixgbe_setup_fc_backplane_x550em_a(struct ixgbe_hw *hw)
3563 {
3564 	s32 status = 0;
3565 	u32 an_cntl = 0;
3566 
3567 	/* Validate the requested mode */
3568 	if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
3569 		hw_err(hw, "ixgbe_fc_rx_pause not valid in strict IEEE mode\n");
3570 		return -EINVAL;
3571 	}
3572 
3573 	if (hw->fc.requested_mode == ixgbe_fc_default)
3574 		hw->fc.requested_mode = ixgbe_fc_full;
3575 
3576 	/* Set up the 1G and 10G flow control advertisement registers so the
3577 	 * HW will be able to do FC autoneg once the cable is plugged in.  If
3578 	 * we link at 10G, the 1G advertisement is harmless and vice versa.
3579 	 */
3580 	status = hw->mac.ops.read_iosf_sb_reg(hw,
3581 					IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
3582 					IXGBE_SB_IOSF_TARGET_KR_PHY, &an_cntl);
3583 
3584 	if (status) {
3585 		hw_dbg(hw, "Auto-Negotiation did not complete\n");
3586 		return status;
3587 	}
3588 
3589 	/* The possible values of fc.requested_mode are:
3590 	 * 0: Flow control is completely disabled
3591 	 * 1: Rx flow control is enabled (we can receive pause frames,
3592 	 *    but not send pause frames).
3593 	 * 2: Tx flow control is enabled (we can send pause frames but
3594 	 *    we do not support receiving pause frames).
3595 	 * 3: Both Rx and Tx flow control (symmetric) are enabled.
3596 	 * other: Invalid.
3597 	 */
3598 	switch (hw->fc.requested_mode) {
3599 	case ixgbe_fc_none:
3600 		/* Flow control completely disabled by software override. */
3601 		an_cntl &= ~(IXGBE_KRM_AN_CNTL_1_SYM_PAUSE |
3602 			     IXGBE_KRM_AN_CNTL_1_ASM_PAUSE);
3603 		break;
3604 	case ixgbe_fc_tx_pause:
3605 		/* Tx Flow control is enabled, and Rx Flow control is
3606 		 * disabled by software override.
3607 		 */
3608 		an_cntl |= IXGBE_KRM_AN_CNTL_1_ASM_PAUSE;
3609 		an_cntl &= ~IXGBE_KRM_AN_CNTL_1_SYM_PAUSE;
3610 		break;
3611 	case ixgbe_fc_rx_pause:
3612 		/* Rx Flow control is enabled and Tx Flow control is
3613 		 * disabled by software override. Since there really
3614 		 * isn't a way to advertise that we are capable of RX
3615 		 * Pause ONLY, we will advertise that we support both
3616 		 * symmetric and asymmetric Rx PAUSE, as such we fall
3617 		 * through to the fc_full statement.  Later, we will
3618 		 * disable the adapter's ability to send PAUSE frames.
3619 		 */
3620 	case ixgbe_fc_full:
3621 		/* Flow control (both Rx and Tx) is enabled by SW override. */
3622 		an_cntl |= IXGBE_KRM_AN_CNTL_1_SYM_PAUSE |
3623 			   IXGBE_KRM_AN_CNTL_1_ASM_PAUSE;
3624 		break;
3625 	default:
3626 		hw_err(hw, "Flow control param set incorrectly\n");
3627 		return -EIO;
3628 	}
3629 
3630 	status = hw->mac.ops.write_iosf_sb_reg(hw,
3631 					IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
3632 					IXGBE_SB_IOSF_TARGET_KR_PHY, an_cntl);
3633 
3634 	/* Restart auto-negotiation. */
3635 	status = ixgbe_restart_an_internal_phy_x550em(hw);
3636 
3637 	return status;
3638 }
3639 
3640 /**
3641  * ixgbe_set_mux - Set mux for port 1 access with CS4227
3642  * @hw: pointer to hardware structure
3643  * @state: set mux if 1, clear if 0
3644  */
3645 static void ixgbe_set_mux(struct ixgbe_hw *hw, u8 state)
3646 {
3647 	u32 esdp;
3648 
3649 	if (!hw->bus.lan_id)
3650 		return;
3651 	esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
3652 	if (state)
3653 		esdp |= IXGBE_ESDP_SDP1;
3654 	else
3655 		esdp &= ~IXGBE_ESDP_SDP1;
3656 	IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
3657 	IXGBE_WRITE_FLUSH(hw);
3658 }
3659 
3660 /**
3661  * ixgbe_acquire_swfw_sync_X550em - Acquire SWFW semaphore
3662  * @hw: pointer to hardware structure
3663  * @mask: Mask to specify which semaphore to acquire
3664  *
3665  * Acquires the SWFW semaphore and sets the I2C MUX
3666  */
3667 static s32 ixgbe_acquire_swfw_sync_X550em(struct ixgbe_hw *hw, u32 mask)
3668 {
3669 	s32 status;
3670 
3671 	status = ixgbe_acquire_swfw_sync_X540(hw, mask);
3672 	if (status)
3673 		return status;
3674 
3675 	if (mask & IXGBE_GSSR_I2C_MASK)
3676 		ixgbe_set_mux(hw, 1);
3677 
3678 	return 0;
3679 }
3680 
3681 /**
3682  * ixgbe_release_swfw_sync_X550em - Release SWFW semaphore
3683  * @hw: pointer to hardware structure
3684  * @mask: Mask to specify which semaphore to release
3685  *
3686  * Releases the SWFW semaphore and sets the I2C MUX
3687  */
3688 static void ixgbe_release_swfw_sync_X550em(struct ixgbe_hw *hw, u32 mask)
3689 {
3690 	if (mask & IXGBE_GSSR_I2C_MASK)
3691 		ixgbe_set_mux(hw, 0);
3692 
3693 	ixgbe_release_swfw_sync_X540(hw, mask);
3694 }
3695 
3696 /**
3697  * ixgbe_acquire_swfw_sync_x550em_a - Acquire SWFW semaphore
3698  * @hw: pointer to hardware structure
3699  * @mask: Mask to specify which semaphore to acquire
3700  *
3701  * Acquires the SWFW semaphore and get the shared PHY token as needed
3702  */
3703 static s32 ixgbe_acquire_swfw_sync_x550em_a(struct ixgbe_hw *hw, u32 mask)
3704 {
3705 	u32 hmask = mask & ~IXGBE_GSSR_TOKEN_SM;
3706 	int retries = FW_PHY_TOKEN_RETRIES;
3707 	s32 status;
3708 
3709 	while (--retries) {
3710 		status = 0;
3711 		if (hmask)
3712 			status = ixgbe_acquire_swfw_sync_X540(hw, hmask);
3713 		if (status)
3714 			return status;
3715 		if (!(mask & IXGBE_GSSR_TOKEN_SM))
3716 			return 0;
3717 
3718 		status = ixgbe_get_phy_token(hw);
3719 		if (!status)
3720 			return 0;
3721 		if (hmask)
3722 			ixgbe_release_swfw_sync_X540(hw, hmask);
3723 		if (status != -EAGAIN)
3724 			return status;
3725 		msleep(FW_PHY_TOKEN_DELAY);
3726 	}
3727 
3728 	return status;
3729 }
3730 
3731 /**
3732  * ixgbe_release_swfw_sync_x550em_a - Release SWFW semaphore
3733  * @hw: pointer to hardware structure
3734  * @mask: Mask to specify which semaphore to release
3735  *
3736  * Release the SWFW semaphore and puts the shared PHY token as needed
3737  */
3738 static void ixgbe_release_swfw_sync_x550em_a(struct ixgbe_hw *hw, u32 mask)
3739 {
3740 	u32 hmask = mask & ~IXGBE_GSSR_TOKEN_SM;
3741 
3742 	if (mask & IXGBE_GSSR_TOKEN_SM)
3743 		ixgbe_put_phy_token(hw);
3744 
3745 	if (hmask)
3746 		ixgbe_release_swfw_sync_X540(hw, hmask);
3747 }
3748 
3749 /**
3750  * ixgbe_read_phy_reg_x550a - Reads specified PHY register
3751  * @hw: pointer to hardware structure
3752  * @reg_addr: 32 bit address of PHY register to read
3753  * @device_type: 5 bit device type
3754  * @phy_data: Pointer to read data from PHY register
3755  *
3756  * Reads a value from a specified PHY register using the SWFW lock and PHY
3757  * Token. The PHY Token is needed since the MDIO is shared between to MAC
3758  * instances.
3759  */
3760 static s32 ixgbe_read_phy_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr,
3761 				    u32 device_type, u16 *phy_data)
3762 {
3763 	u32 mask = hw->phy.phy_semaphore_mask | IXGBE_GSSR_TOKEN_SM;
3764 	s32 status;
3765 
3766 	if (hw->mac.ops.acquire_swfw_sync(hw, mask))
3767 		return -EBUSY;
3768 
3769 	status = hw->phy.ops.read_reg_mdi(hw, reg_addr, device_type, phy_data);
3770 
3771 	hw->mac.ops.release_swfw_sync(hw, mask);
3772 
3773 	return status;
3774 }
3775 
3776 /**
3777  * ixgbe_write_phy_reg_x550a - Writes specified PHY register
3778  * @hw: pointer to hardware structure
3779  * @reg_addr: 32 bit PHY register to write
3780  * @device_type: 5 bit device type
3781  * @phy_data: Data to write to the PHY register
3782  *
3783  * Writes a value to specified PHY register using the SWFW lock and PHY Token.
3784  * The PHY Token is needed since the MDIO is shared between to MAC instances.
3785  */
3786 static s32 ixgbe_write_phy_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr,
3787 				     u32 device_type, u16 phy_data)
3788 {
3789 	u32 mask = hw->phy.phy_semaphore_mask | IXGBE_GSSR_TOKEN_SM;
3790 	s32 status;
3791 
3792 	if (hw->mac.ops.acquire_swfw_sync(hw, mask))
3793 		return -EBUSY;
3794 
3795 	status = ixgbe_write_phy_reg_mdi(hw, reg_addr, device_type, phy_data);
3796 	hw->mac.ops.release_swfw_sync(hw, mask);
3797 
3798 	return status;
3799 }
3800 
3801 #define X550_COMMON_MAC \
3802 	.init_hw			= &ixgbe_init_hw_generic, \
3803 	.start_hw			= &ixgbe_start_hw_X540, \
3804 	.clear_hw_cntrs			= &ixgbe_clear_hw_cntrs_generic, \
3805 	.enable_rx_dma			= &ixgbe_enable_rx_dma_generic, \
3806 	.get_mac_addr			= &ixgbe_get_mac_addr_generic, \
3807 	.get_device_caps		= &ixgbe_get_device_caps_generic, \
3808 	.stop_adapter			= &ixgbe_stop_adapter_generic, \
3809 	.set_lan_id			= &ixgbe_set_lan_id_multi_port_pcie, \
3810 	.read_analog_reg8		= NULL, \
3811 	.write_analog_reg8		= NULL, \
3812 	.set_rxpba			= &ixgbe_set_rxpba_generic, \
3813 	.check_link			= &ixgbe_check_mac_link_generic, \
3814 	.blink_led_start		= &ixgbe_blink_led_start_X540, \
3815 	.blink_led_stop			= &ixgbe_blink_led_stop_X540, \
3816 	.set_rar			= &ixgbe_set_rar_generic, \
3817 	.clear_rar			= &ixgbe_clear_rar_generic, \
3818 	.set_vmdq			= &ixgbe_set_vmdq_generic, \
3819 	.set_vmdq_san_mac		= &ixgbe_set_vmdq_san_mac_generic, \
3820 	.clear_vmdq			= &ixgbe_clear_vmdq_generic, \
3821 	.init_rx_addrs			= &ixgbe_init_rx_addrs_generic, \
3822 	.update_mc_addr_list		= &ixgbe_update_mc_addr_list_generic, \
3823 	.enable_mc			= &ixgbe_enable_mc_generic, \
3824 	.disable_mc			= &ixgbe_disable_mc_generic, \
3825 	.clear_vfta			= &ixgbe_clear_vfta_generic, \
3826 	.set_vfta			= &ixgbe_set_vfta_generic, \
3827 	.fc_enable			= &ixgbe_fc_enable_generic, \
3828 	.set_fw_drv_ver			= &ixgbe_set_fw_drv_ver_x550, \
3829 	.init_uta_tables		= &ixgbe_init_uta_tables_generic, \
3830 	.set_mac_anti_spoofing		= &ixgbe_set_mac_anti_spoofing, \
3831 	.set_vlan_anti_spoofing		= &ixgbe_set_vlan_anti_spoofing, \
3832 	.set_source_address_pruning	= \
3833 				&ixgbe_set_source_address_pruning_X550, \
3834 	.set_ethertype_anti_spoofing	= \
3835 				&ixgbe_set_ethertype_anti_spoofing_X550, \
3836 	.disable_rx_buff		= &ixgbe_disable_rx_buff_generic, \
3837 	.enable_rx_buff			= &ixgbe_enable_rx_buff_generic, \
3838 	.get_thermal_sensor_data	= NULL, \
3839 	.init_thermal_sensor_thresh	= NULL, \
3840 	.fw_recovery_mode		= &ixgbe_fw_recovery_mode_X550, \
3841 	.enable_rx			= &ixgbe_enable_rx_generic, \
3842 	.disable_rx			= &ixgbe_disable_rx_x550, \
3843 
3844 static const struct ixgbe_mac_operations mac_ops_X550 = {
3845 	X550_COMMON_MAC
3846 	.led_on			= ixgbe_led_on_generic,
3847 	.led_off		= ixgbe_led_off_generic,
3848 	.init_led_link_act	= ixgbe_init_led_link_act_generic,
3849 	.reset_hw		= &ixgbe_reset_hw_X540,
3850 	.get_media_type		= &ixgbe_get_media_type_X540,
3851 	.get_san_mac_addr	= &ixgbe_get_san_mac_addr_generic,
3852 	.get_wwn_prefix		= &ixgbe_get_wwn_prefix_generic,
3853 	.setup_link		= &ixgbe_setup_mac_link_X540,
3854 	.get_link_capabilities	= &ixgbe_get_copper_link_capabilities_generic,
3855 	.get_bus_info		= &ixgbe_get_bus_info_generic,
3856 	.setup_sfp		= NULL,
3857 	.acquire_swfw_sync	= &ixgbe_acquire_swfw_sync_X540,
3858 	.release_swfw_sync	= &ixgbe_release_swfw_sync_X540,
3859 	.init_swfw_sync		= &ixgbe_init_swfw_sync_X540,
3860 	.prot_autoc_read	= prot_autoc_read_generic,
3861 	.prot_autoc_write	= prot_autoc_write_generic,
3862 	.setup_fc		= ixgbe_setup_fc_generic,
3863 	.fc_autoneg		= ixgbe_fc_autoneg,
3864 };
3865 
3866 static const struct ixgbe_mac_operations mac_ops_X550EM_x = {
3867 	X550_COMMON_MAC
3868 	.led_on			= ixgbe_led_on_t_x550em,
3869 	.led_off		= ixgbe_led_off_t_x550em,
3870 	.init_led_link_act	= ixgbe_init_led_link_act_generic,
3871 	.reset_hw		= &ixgbe_reset_hw_X550em,
3872 	.get_media_type		= &ixgbe_get_media_type_X550em,
3873 	.get_san_mac_addr	= NULL,
3874 	.get_wwn_prefix		= NULL,
3875 	.setup_link		= &ixgbe_setup_mac_link_X540,
3876 	.get_link_capabilities	= &ixgbe_get_link_capabilities_X550em,
3877 	.get_bus_info		= &ixgbe_get_bus_info_X550em,
3878 	.setup_sfp		= ixgbe_setup_sfp_modules_X550em,
3879 	.acquire_swfw_sync	= &ixgbe_acquire_swfw_sync_X550em,
3880 	.release_swfw_sync	= &ixgbe_release_swfw_sync_X550em,
3881 	.init_swfw_sync		= &ixgbe_init_swfw_sync_X540,
3882 	.setup_fc		= NULL, /* defined later */
3883 	.fc_autoneg		= ixgbe_fc_autoneg,
3884 	.read_iosf_sb_reg	= ixgbe_read_iosf_sb_reg_x550,
3885 	.write_iosf_sb_reg	= ixgbe_write_iosf_sb_reg_x550,
3886 };
3887 
3888 static const struct ixgbe_mac_operations mac_ops_X550EM_x_fw = {
3889 	X550_COMMON_MAC
3890 	.led_on			= NULL,
3891 	.led_off		= NULL,
3892 	.init_led_link_act	= NULL,
3893 	.reset_hw		= &ixgbe_reset_hw_X550em,
3894 	.get_media_type		= &ixgbe_get_media_type_X550em,
3895 	.get_san_mac_addr	= NULL,
3896 	.get_wwn_prefix		= NULL,
3897 	.setup_link		= &ixgbe_setup_mac_link_X540,
3898 	.get_link_capabilities	= &ixgbe_get_link_capabilities_X550em,
3899 	.get_bus_info		= &ixgbe_get_bus_info_X550em,
3900 	.setup_sfp		= ixgbe_setup_sfp_modules_X550em,
3901 	.acquire_swfw_sync	= &ixgbe_acquire_swfw_sync_X550em,
3902 	.release_swfw_sync	= &ixgbe_release_swfw_sync_X550em,
3903 	.init_swfw_sync		= &ixgbe_init_swfw_sync_X540,
3904 	.setup_fc		= NULL,
3905 	.fc_autoneg		= ixgbe_fc_autoneg,
3906 	.read_iosf_sb_reg	= ixgbe_read_iosf_sb_reg_x550,
3907 	.write_iosf_sb_reg	= ixgbe_write_iosf_sb_reg_x550,
3908 };
3909 
3910 static const struct ixgbe_mac_operations mac_ops_x550em_a = {
3911 	X550_COMMON_MAC
3912 	.led_on			= ixgbe_led_on_t_x550em,
3913 	.led_off		= ixgbe_led_off_t_x550em,
3914 	.init_led_link_act	= ixgbe_init_led_link_act_generic,
3915 	.reset_hw		= ixgbe_reset_hw_X550em,
3916 	.get_media_type		= ixgbe_get_media_type_X550em,
3917 	.get_san_mac_addr	= NULL,
3918 	.get_wwn_prefix		= NULL,
3919 	.setup_link		= &ixgbe_setup_mac_link_X540,
3920 	.get_link_capabilities	= ixgbe_get_link_capabilities_X550em,
3921 	.get_bus_info		= ixgbe_get_bus_info_X550em,
3922 	.setup_sfp		= ixgbe_setup_sfp_modules_X550em,
3923 	.acquire_swfw_sync	= ixgbe_acquire_swfw_sync_x550em_a,
3924 	.release_swfw_sync	= ixgbe_release_swfw_sync_x550em_a,
3925 	.setup_fc		= ixgbe_setup_fc_x550em,
3926 	.fc_autoneg		= ixgbe_fc_autoneg,
3927 	.read_iosf_sb_reg	= ixgbe_read_iosf_sb_reg_x550a,
3928 	.write_iosf_sb_reg	= ixgbe_write_iosf_sb_reg_x550a,
3929 };
3930 
3931 static const struct ixgbe_mac_operations mac_ops_x550em_a_fw = {
3932 	X550_COMMON_MAC
3933 	.led_on			= ixgbe_led_on_generic,
3934 	.led_off		= ixgbe_led_off_generic,
3935 	.init_led_link_act	= ixgbe_init_led_link_act_generic,
3936 	.reset_hw		= ixgbe_reset_hw_X550em,
3937 	.get_media_type		= ixgbe_get_media_type_X550em,
3938 	.get_san_mac_addr	= NULL,
3939 	.get_wwn_prefix		= NULL,
3940 	.setup_link		= NULL, /* defined later */
3941 	.get_link_capabilities	= ixgbe_get_link_capabilities_X550em,
3942 	.get_bus_info		= ixgbe_get_bus_info_X550em,
3943 	.setup_sfp		= ixgbe_setup_sfp_modules_X550em,
3944 	.acquire_swfw_sync	= ixgbe_acquire_swfw_sync_x550em_a,
3945 	.release_swfw_sync	= ixgbe_release_swfw_sync_x550em_a,
3946 	.setup_fc		= ixgbe_setup_fc_x550em,
3947 	.fc_autoneg		= ixgbe_fc_autoneg,
3948 	.read_iosf_sb_reg	= ixgbe_read_iosf_sb_reg_x550a,
3949 	.write_iosf_sb_reg	= ixgbe_write_iosf_sb_reg_x550a,
3950 };
3951 
3952 #define X550_COMMON_EEP \
3953 	.read			= &ixgbe_read_ee_hostif_X550, \
3954 	.read_buffer		= &ixgbe_read_ee_hostif_buffer_X550, \
3955 	.write			= &ixgbe_write_ee_hostif_X550, \
3956 	.write_buffer		= &ixgbe_write_ee_hostif_buffer_X550, \
3957 	.validate_checksum	= &ixgbe_validate_eeprom_checksum_X550, \
3958 	.update_checksum	= &ixgbe_update_eeprom_checksum_X550, \
3959 	.calc_checksum		= &ixgbe_calc_eeprom_checksum_X550, \
3960 
3961 static const struct ixgbe_eeprom_operations eeprom_ops_X550 = {
3962 	X550_COMMON_EEP
3963 	.init_params		= &ixgbe_init_eeprom_params_X550,
3964 };
3965 
3966 static const struct ixgbe_eeprom_operations eeprom_ops_X550EM_x = {
3967 	X550_COMMON_EEP
3968 	.init_params		= &ixgbe_init_eeprom_params_X540,
3969 };
3970 
3971 #define X550_COMMON_PHY	\
3972 	.identify_sfp		= &ixgbe_identify_module_generic, \
3973 	.reset			= NULL, \
3974 	.setup_link_speed	= &ixgbe_setup_phy_link_speed_generic, \
3975 	.read_i2c_byte		= &ixgbe_read_i2c_byte_generic, \
3976 	.write_i2c_byte		= &ixgbe_write_i2c_byte_generic, \
3977 	.read_i2c_sff8472	= &ixgbe_read_i2c_sff8472_generic, \
3978 	.read_i2c_eeprom	= &ixgbe_read_i2c_eeprom_generic, \
3979 	.write_i2c_eeprom	= &ixgbe_write_i2c_eeprom_generic, \
3980 	.setup_link		= &ixgbe_setup_phy_link_generic, \
3981 	.set_phy_power		= NULL,
3982 
3983 static const struct ixgbe_phy_operations phy_ops_X550 = {
3984 	X550_COMMON_PHY
3985 	.check_overtemp		= &ixgbe_tn_check_overtemp,
3986 	.init			= NULL,
3987 	.identify		= &ixgbe_identify_phy_generic,
3988 	.read_reg		= &ixgbe_read_phy_reg_generic,
3989 	.write_reg		= &ixgbe_write_phy_reg_generic,
3990 };
3991 
3992 static const struct ixgbe_phy_operations phy_ops_X550EM_x = {
3993 	X550_COMMON_PHY
3994 	.check_overtemp		= &ixgbe_tn_check_overtemp,
3995 	.init			= &ixgbe_init_phy_ops_X550em,
3996 	.identify		= &ixgbe_identify_phy_x550em,
3997 	.read_reg		= &ixgbe_read_phy_reg_generic,
3998 	.write_reg		= &ixgbe_write_phy_reg_generic,
3999 };
4000 
4001 static const struct ixgbe_phy_operations phy_ops_x550em_x_fw = {
4002 	X550_COMMON_PHY
4003 	.check_overtemp		= NULL,
4004 	.init			= ixgbe_init_phy_ops_X550em,
4005 	.identify		= ixgbe_identify_phy_x550em,
4006 	.read_reg		= NULL,
4007 	.write_reg		= NULL,
4008 	.read_reg_mdi		= NULL,
4009 	.write_reg_mdi		= NULL,
4010 };
4011 
4012 static const struct ixgbe_phy_operations phy_ops_x550em_a = {
4013 	X550_COMMON_PHY
4014 	.check_overtemp		= &ixgbe_tn_check_overtemp,
4015 	.init			= &ixgbe_init_phy_ops_X550em,
4016 	.identify		= &ixgbe_identify_phy_x550em,
4017 	.read_reg		= &ixgbe_read_phy_reg_x550a,
4018 	.write_reg		= &ixgbe_write_phy_reg_x550a,
4019 	.read_reg_mdi		= &ixgbe_read_phy_reg_mdi,
4020 	.write_reg_mdi		= &ixgbe_write_phy_reg_mdi,
4021 };
4022 
4023 static const struct ixgbe_phy_operations phy_ops_x550em_a_fw = {
4024 	X550_COMMON_PHY
4025 	.check_overtemp		= ixgbe_check_overtemp_fw,
4026 	.init			= ixgbe_init_phy_ops_X550em,
4027 	.identify		= ixgbe_identify_phy_fw,
4028 	.read_reg		= NULL,
4029 	.write_reg		= NULL,
4030 	.read_reg_mdi		= NULL,
4031 	.write_reg_mdi		= NULL,
4032 };
4033 
4034 static const struct ixgbe_link_operations link_ops_x550em_x = {
4035 	.read_link		= &ixgbe_read_i2c_combined_generic,
4036 	.read_link_unlocked	= &ixgbe_read_i2c_combined_generic_unlocked,
4037 	.write_link		= &ixgbe_write_i2c_combined_generic,
4038 	.write_link_unlocked	= &ixgbe_write_i2c_combined_generic_unlocked,
4039 };
4040 
4041 static const u32 ixgbe_mvals_X550[IXGBE_MVALS_IDX_LIMIT] = {
4042 	IXGBE_MVALS_INIT(X550)
4043 };
4044 
4045 static const u32 ixgbe_mvals_X550EM_x[IXGBE_MVALS_IDX_LIMIT] = {
4046 	IXGBE_MVALS_INIT(X550EM_x)
4047 };
4048 
4049 static const u32 ixgbe_mvals_x550em_a[IXGBE_MVALS_IDX_LIMIT] = {
4050 	IXGBE_MVALS_INIT(X550EM_a)
4051 };
4052 
4053 const struct ixgbe_info ixgbe_X550_info = {
4054 	.mac			= ixgbe_mac_X550,
4055 	.get_invariants		= &ixgbe_get_invariants_X540,
4056 	.mac_ops		= &mac_ops_X550,
4057 	.eeprom_ops		= &eeprom_ops_X550,
4058 	.phy_ops		= &phy_ops_X550,
4059 	.mbx_ops		= &mbx_ops_generic,
4060 	.mvals			= ixgbe_mvals_X550,
4061 };
4062 
4063 const struct ixgbe_info ixgbe_X550EM_x_info = {
4064 	.mac			= ixgbe_mac_X550EM_x,
4065 	.get_invariants		= &ixgbe_get_invariants_X550_x,
4066 	.mac_ops		= &mac_ops_X550EM_x,
4067 	.eeprom_ops		= &eeprom_ops_X550EM_x,
4068 	.phy_ops		= &phy_ops_X550EM_x,
4069 	.mbx_ops		= &mbx_ops_generic,
4070 	.mvals			= ixgbe_mvals_X550EM_x,
4071 	.link_ops		= &link_ops_x550em_x,
4072 };
4073 
4074 const struct ixgbe_info ixgbe_x550em_x_fw_info = {
4075 	.mac			= ixgbe_mac_X550EM_x,
4076 	.get_invariants		= ixgbe_get_invariants_X550_x_fw,
4077 	.mac_ops		= &mac_ops_X550EM_x_fw,
4078 	.eeprom_ops		= &eeprom_ops_X550EM_x,
4079 	.phy_ops		= &phy_ops_x550em_x_fw,
4080 	.mbx_ops		= &mbx_ops_generic,
4081 	.mvals			= ixgbe_mvals_X550EM_x,
4082 };
4083 
4084 const struct ixgbe_info ixgbe_x550em_a_info = {
4085 	.mac			= ixgbe_mac_x550em_a,
4086 	.get_invariants		= &ixgbe_get_invariants_X550_a,
4087 	.mac_ops		= &mac_ops_x550em_a,
4088 	.eeprom_ops		= &eeprom_ops_X550EM_x,
4089 	.phy_ops		= &phy_ops_x550em_a,
4090 	.mbx_ops		= &mbx_ops_generic,
4091 	.mvals			= ixgbe_mvals_x550em_a,
4092 };
4093 
4094 const struct ixgbe_info ixgbe_x550em_a_fw_info = {
4095 	.mac			= ixgbe_mac_x550em_a,
4096 	.get_invariants		= ixgbe_get_invariants_X550_a_fw,
4097 	.mac_ops		= &mac_ops_x550em_a_fw,
4098 	.eeprom_ops		= &eeprom_ops_X550EM_x,
4099 	.phy_ops		= &phy_ops_x550em_a_fw,
4100 	.mbx_ops		= &mbx_ops_generic,
4101 	.mvals			= ixgbe_mvals_x550em_a,
4102 };
4103