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 
ixgbe_get_invariants_X550_x(struct ixgbe_hw * hw)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 
ixgbe_get_invariants_X550_x_fw(struct ixgbe_hw * hw)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 
ixgbe_get_invariants_X550_a(struct ixgbe_hw * hw)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 
ixgbe_get_invariants_X550_a_fw(struct ixgbe_hw * hw)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  **/
ixgbe_setup_mux_ctl(struct ixgbe_hw * hw)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  */
ixgbe_read_cs4227(struct ixgbe_hw * hw,u16 reg,u16 * value)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  */
ixgbe_write_cs4227(struct ixgbe_hw * hw,u16 reg,u16 value)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  */
ixgbe_read_pe(struct ixgbe_hw * hw,u8 reg,u8 * value)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  */
ixgbe_write_pe(struct ixgbe_hw * hw,u8 reg,u8 value)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  */
ixgbe_reset_cs4227(struct ixgbe_hw * hw)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 IXGBE_ERR_PHY;
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 IXGBE_ERR_PHY;
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  */
ixgbe_check_cs4227(struct ixgbe_hw * hw)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  */
ixgbe_identify_phy_x550em(struct ixgbe_hw * hw)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 
ixgbe_read_phy_reg_x550em(struct ixgbe_hw * hw,u32 reg_addr,u32 device_type,u16 * phy_data)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 IXGBE_NOT_IMPLEMENTED;
354 }
355 
ixgbe_write_phy_reg_x550em(struct ixgbe_hw * hw,u32 reg_addr,u32 device_type,u16 phy_data)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 IXGBE_NOT_IMPLEMENTED;
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  **/
ixgbe_read_i2c_combined_generic(struct ixgbe_hw * hw,u8 addr,u16 reg,u16 * val)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
ixgbe_read_i2c_combined_generic_unlocked(struct ixgbe_hw * hw,u8 addr,u16 reg,u16 * val)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  **/
ixgbe_write_i2c_combined_generic(struct ixgbe_hw * hw,u8 addr,u16 reg,u16 val)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
ixgbe_write_i2c_combined_generic_unlocked(struct ixgbe_hw * hw,u8 addr,u16 reg,u16 val)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  */
ixgbe_fw_phy_activity(struct ixgbe_hw * hw,u16 activity,u32 (* data)[FW_PHY_ACT_DATA_COUNT])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 IXGBE_ERR_HOST_INTERFACE_COMMAND;
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  */
ixgbe_get_phy_id_fw(struct ixgbe_hw * hw)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 IXGBE_ERR_PHY_ADDR_INVALID;
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  */
ixgbe_identify_phy_fw(struct ixgbe_hw * hw)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  */
ixgbe_shutdown_fw_phy(struct ixgbe_hw * hw)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  */
ixgbe_setup_fw_link(struct ixgbe_hw * hw)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 IXGBE_ERR_INVALID_LINK_SETTINGS;
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 	if (setup[0] == FW_PHY_ACT_SETUP_LINK_RSP_DOWN)
604 		return IXGBE_ERR_OVERTEMP;
605 	return 0;
606 }
607 
608 /**
609  * ixgbe_fc_autoneg_fw - Set up flow control for FW-controlled PHYs
610  * @hw: pointer to hardware structure
611  *
612  * Called at init time to set up flow control.
613  */
ixgbe_fc_autoneg_fw(struct ixgbe_hw * hw)614 static s32 ixgbe_fc_autoneg_fw(struct ixgbe_hw *hw)
615 {
616 	if (hw->fc.requested_mode == ixgbe_fc_default)
617 		hw->fc.requested_mode = ixgbe_fc_full;
618 
619 	return ixgbe_setup_fw_link(hw);
620 }
621 
622 /** ixgbe_init_eeprom_params_X550 - Initialize EEPROM params
623  *  @hw: pointer to hardware structure
624  *
625  *  Initializes the EEPROM parameters ixgbe_eeprom_info within the
626  *  ixgbe_hw struct in order to set up EEPROM access.
627  **/
ixgbe_init_eeprom_params_X550(struct ixgbe_hw * hw)628 static s32 ixgbe_init_eeprom_params_X550(struct ixgbe_hw *hw)
629 {
630 	struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
631 	u32 eec;
632 	u16 eeprom_size;
633 
634 	if (eeprom->type == ixgbe_eeprom_uninitialized) {
635 		eeprom->semaphore_delay = 10;
636 		eeprom->type = ixgbe_flash;
637 
638 		eec = IXGBE_READ_REG(hw, IXGBE_EEC(hw));
639 		eeprom_size = (u16)((eec & IXGBE_EEC_SIZE) >>
640 				    IXGBE_EEC_SIZE_SHIFT);
641 		eeprom->word_size = BIT(eeprom_size +
642 					IXGBE_EEPROM_WORD_SIZE_SHIFT);
643 
644 		hw_dbg(hw, "Eeprom params: type = %d, size = %d\n",
645 		       eeprom->type, eeprom->word_size);
646 	}
647 
648 	return 0;
649 }
650 
651 /**
652  * ixgbe_iosf_wait - Wait for IOSF command completion
653  * @hw: pointer to hardware structure
654  * @ctrl: pointer to location to receive final IOSF control value
655  *
656  * Return: failing status on timeout
657  *
658  * Note: ctrl can be NULL if the IOSF control register value is not needed
659  */
ixgbe_iosf_wait(struct ixgbe_hw * hw,u32 * ctrl)660 static s32 ixgbe_iosf_wait(struct ixgbe_hw *hw, u32 *ctrl)
661 {
662 	u32 i, command;
663 
664 	/* Check every 10 usec to see if the address cycle completed.
665 	 * The SB IOSF BUSY bit will clear when the operation is
666 	 * complete.
667 	 */
668 	for (i = 0; i < IXGBE_MDIO_COMMAND_TIMEOUT; i++) {
669 		command = IXGBE_READ_REG(hw, IXGBE_SB_IOSF_INDIRECT_CTRL);
670 		if (!(command & IXGBE_SB_IOSF_CTRL_BUSY))
671 			break;
672 		udelay(10);
673 	}
674 	if (ctrl)
675 		*ctrl = command;
676 	if (i == IXGBE_MDIO_COMMAND_TIMEOUT) {
677 		hw_dbg(hw, "IOSF wait timed out\n");
678 		return IXGBE_ERR_PHY;
679 	}
680 
681 	return 0;
682 }
683 
684 /** ixgbe_read_iosf_sb_reg_x550 - Writes a value to specified register of the
685  *  IOSF device
686  *  @hw: pointer to hardware structure
687  *  @reg_addr: 32 bit PHY register to write
688  *  @device_type: 3 bit device type
689  *  @phy_data: Pointer to read data from the register
690  **/
ixgbe_read_iosf_sb_reg_x550(struct ixgbe_hw * hw,u32 reg_addr,u32 device_type,u32 * data)691 static s32 ixgbe_read_iosf_sb_reg_x550(struct ixgbe_hw *hw, u32 reg_addr,
692 				       u32 device_type, u32 *data)
693 {
694 	u32 gssr = IXGBE_GSSR_PHY1_SM | IXGBE_GSSR_PHY0_SM;
695 	u32 command, error;
696 	s32 ret;
697 
698 	ret = hw->mac.ops.acquire_swfw_sync(hw, gssr);
699 	if (ret)
700 		return ret;
701 
702 	ret = ixgbe_iosf_wait(hw, NULL);
703 	if (ret)
704 		goto out;
705 
706 	command = ((reg_addr << IXGBE_SB_IOSF_CTRL_ADDR_SHIFT) |
707 		   (device_type << IXGBE_SB_IOSF_CTRL_TARGET_SELECT_SHIFT));
708 
709 	/* Write IOSF control register */
710 	IXGBE_WRITE_REG(hw, IXGBE_SB_IOSF_INDIRECT_CTRL, command);
711 
712 	ret = ixgbe_iosf_wait(hw, &command);
713 
714 	if ((command & IXGBE_SB_IOSF_CTRL_RESP_STAT_MASK) != 0) {
715 		error = (command & IXGBE_SB_IOSF_CTRL_CMPL_ERR_MASK) >>
716 			 IXGBE_SB_IOSF_CTRL_CMPL_ERR_SHIFT;
717 		hw_dbg(hw, "Failed to read, error %x\n", error);
718 		return IXGBE_ERR_PHY;
719 	}
720 
721 	if (!ret)
722 		*data = IXGBE_READ_REG(hw, IXGBE_SB_IOSF_INDIRECT_DATA);
723 
724 out:
725 	hw->mac.ops.release_swfw_sync(hw, gssr);
726 	return ret;
727 }
728 
729 /**
730  * ixgbe_get_phy_token - Get the token for shared PHY access
731  * @hw: Pointer to hardware structure
732  */
ixgbe_get_phy_token(struct ixgbe_hw * hw)733 static s32 ixgbe_get_phy_token(struct ixgbe_hw *hw)
734 {
735 	struct ixgbe_hic_phy_token_req token_cmd;
736 	s32 status;
737 
738 	token_cmd.hdr.cmd = FW_PHY_TOKEN_REQ_CMD;
739 	token_cmd.hdr.buf_len = FW_PHY_TOKEN_REQ_LEN;
740 	token_cmd.hdr.cmd_or_resp.cmd_resv = 0;
741 	token_cmd.hdr.checksum = FW_DEFAULT_CHECKSUM;
742 	token_cmd.port_number = hw->bus.lan_id;
743 	token_cmd.command_type = FW_PHY_TOKEN_REQ;
744 	token_cmd.pad = 0;
745 	status = ixgbe_host_interface_command(hw, &token_cmd, sizeof(token_cmd),
746 					      IXGBE_HI_COMMAND_TIMEOUT,
747 					      true);
748 	if (status)
749 		return status;
750 	if (token_cmd.hdr.cmd_or_resp.ret_status == FW_PHY_TOKEN_OK)
751 		return 0;
752 	if (token_cmd.hdr.cmd_or_resp.ret_status != FW_PHY_TOKEN_RETRY)
753 		return IXGBE_ERR_FW_RESP_INVALID;
754 
755 	return IXGBE_ERR_TOKEN_RETRY;
756 }
757 
758 /**
759  * ixgbe_put_phy_token - Put the token for shared PHY access
760  * @hw: Pointer to hardware structure
761  */
ixgbe_put_phy_token(struct ixgbe_hw * hw)762 static s32 ixgbe_put_phy_token(struct ixgbe_hw *hw)
763 {
764 	struct ixgbe_hic_phy_token_req token_cmd;
765 	s32 status;
766 
767 	token_cmd.hdr.cmd = FW_PHY_TOKEN_REQ_CMD;
768 	token_cmd.hdr.buf_len = FW_PHY_TOKEN_REQ_LEN;
769 	token_cmd.hdr.cmd_or_resp.cmd_resv = 0;
770 	token_cmd.hdr.checksum = FW_DEFAULT_CHECKSUM;
771 	token_cmd.port_number = hw->bus.lan_id;
772 	token_cmd.command_type = FW_PHY_TOKEN_REL;
773 	token_cmd.pad = 0;
774 	status = ixgbe_host_interface_command(hw, &token_cmd, sizeof(token_cmd),
775 					      IXGBE_HI_COMMAND_TIMEOUT,
776 					      true);
777 	if (status)
778 		return status;
779 	if (token_cmd.hdr.cmd_or_resp.ret_status == FW_PHY_TOKEN_OK)
780 		return 0;
781 	return IXGBE_ERR_FW_RESP_INVALID;
782 }
783 
784 /**
785  *  ixgbe_write_iosf_sb_reg_x550a - Write to IOSF PHY register
786  *  @hw: pointer to hardware structure
787  *  @reg_addr: 32 bit PHY register to write
788  *  @device_type: 3 bit device type
789  *  @data: Data to write to the register
790  **/
ixgbe_write_iosf_sb_reg_x550a(struct ixgbe_hw * hw,u32 reg_addr,__always_unused u32 device_type,u32 data)791 static s32 ixgbe_write_iosf_sb_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr,
792 					 __always_unused u32 device_type,
793 					 u32 data)
794 {
795 	struct ixgbe_hic_internal_phy_req write_cmd;
796 
797 	memset(&write_cmd, 0, sizeof(write_cmd));
798 	write_cmd.hdr.cmd = FW_INT_PHY_REQ_CMD;
799 	write_cmd.hdr.buf_len = FW_INT_PHY_REQ_LEN;
800 	write_cmd.hdr.checksum = FW_DEFAULT_CHECKSUM;
801 	write_cmd.port_number = hw->bus.lan_id;
802 	write_cmd.command_type = FW_INT_PHY_REQ_WRITE;
803 	write_cmd.address = cpu_to_be16(reg_addr);
804 	write_cmd.write_data = cpu_to_be32(data);
805 
806 	return ixgbe_host_interface_command(hw, &write_cmd, sizeof(write_cmd),
807 					    IXGBE_HI_COMMAND_TIMEOUT, false);
808 }
809 
810 /**
811  *  ixgbe_read_iosf_sb_reg_x550a - Read from IOSF PHY register
812  *  @hw: pointer to hardware structure
813  *  @reg_addr: 32 bit PHY register to write
814  *  @device_type: 3 bit device type
815  *  @data: Pointer to read data from the register
816  **/
ixgbe_read_iosf_sb_reg_x550a(struct ixgbe_hw * hw,u32 reg_addr,__always_unused u32 device_type,u32 * data)817 static s32 ixgbe_read_iosf_sb_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr,
818 					__always_unused u32 device_type,
819 					u32 *data)
820 {
821 	union {
822 		struct ixgbe_hic_internal_phy_req cmd;
823 		struct ixgbe_hic_internal_phy_resp rsp;
824 	} hic;
825 	s32 status;
826 
827 	memset(&hic, 0, sizeof(hic));
828 	hic.cmd.hdr.cmd = FW_INT_PHY_REQ_CMD;
829 	hic.cmd.hdr.buf_len = FW_INT_PHY_REQ_LEN;
830 	hic.cmd.hdr.checksum = FW_DEFAULT_CHECKSUM;
831 	hic.cmd.port_number = hw->bus.lan_id;
832 	hic.cmd.command_type = FW_INT_PHY_REQ_READ;
833 	hic.cmd.address = cpu_to_be16(reg_addr);
834 
835 	status = ixgbe_host_interface_command(hw, &hic.cmd, sizeof(hic.cmd),
836 					      IXGBE_HI_COMMAND_TIMEOUT, true);
837 
838 	/* Extract the register value from the response. */
839 	*data = be32_to_cpu(hic.rsp.read_data);
840 
841 	return status;
842 }
843 
844 /** ixgbe_read_ee_hostif_buffer_X550- Read EEPROM word(s) using hostif
845  *  @hw: pointer to hardware structure
846  *  @offset: offset of  word in the EEPROM to read
847  *  @words: number of words
848  *  @data: word(s) read from the EEPROM
849  *
850  *  Reads a 16 bit word(s) from the EEPROM using the hostif.
851  **/
ixgbe_read_ee_hostif_buffer_X550(struct ixgbe_hw * hw,u16 offset,u16 words,u16 * data)852 static s32 ixgbe_read_ee_hostif_buffer_X550(struct ixgbe_hw *hw,
853 					    u16 offset, u16 words, u16 *data)
854 {
855 	const u32 mask = IXGBE_GSSR_SW_MNG_SM | IXGBE_GSSR_EEP_SM;
856 	struct ixgbe_hic_read_shadow_ram buffer;
857 	u32 current_word = 0;
858 	u16 words_to_read;
859 	s32 status;
860 	u32 i;
861 
862 	/* Take semaphore for the entire operation. */
863 	status = hw->mac.ops.acquire_swfw_sync(hw, mask);
864 	if (status) {
865 		hw_dbg(hw, "EEPROM read buffer - semaphore failed\n");
866 		return status;
867 	}
868 
869 	while (words) {
870 		if (words > FW_MAX_READ_BUFFER_SIZE / 2)
871 			words_to_read = FW_MAX_READ_BUFFER_SIZE / 2;
872 		else
873 			words_to_read = words;
874 
875 		buffer.hdr.req.cmd = FW_READ_SHADOW_RAM_CMD;
876 		buffer.hdr.req.buf_lenh = 0;
877 		buffer.hdr.req.buf_lenl = FW_READ_SHADOW_RAM_LEN;
878 		buffer.hdr.req.checksum = FW_DEFAULT_CHECKSUM;
879 
880 		/* convert offset from words to bytes */
881 		buffer.address = (__force u32)cpu_to_be32((offset +
882 							   current_word) * 2);
883 		buffer.length = (__force u16)cpu_to_be16(words_to_read * 2);
884 		buffer.pad2 = 0;
885 		buffer.pad3 = 0;
886 
887 		status = ixgbe_hic_unlocked(hw, (u32 *)&buffer, sizeof(buffer),
888 					    IXGBE_HI_COMMAND_TIMEOUT);
889 		if (status) {
890 			hw_dbg(hw, "Host interface command failed\n");
891 			goto out;
892 		}
893 
894 		for (i = 0; i < words_to_read; i++) {
895 			u32 reg = IXGBE_FLEX_MNG + (FW_NVM_DATA_OFFSET << 2) +
896 				  2 * i;
897 			u32 value = IXGBE_READ_REG(hw, reg);
898 
899 			data[current_word] = (u16)(value & 0xffff);
900 			current_word++;
901 			i++;
902 			if (i < words_to_read) {
903 				value >>= 16;
904 				data[current_word] = (u16)(value & 0xffff);
905 				current_word++;
906 			}
907 		}
908 		words -= words_to_read;
909 	}
910 
911 out:
912 	hw->mac.ops.release_swfw_sync(hw, mask);
913 	return status;
914 }
915 
916 /** ixgbe_checksum_ptr_x550 - Checksum one pointer region
917  *  @hw: pointer to hardware structure
918  *  @ptr: pointer offset in eeprom
919  *  @size: size of section pointed by ptr, if 0 first word will be used as size
920  *  @csum: address of checksum to update
921  *
922  *  Returns error status for any failure
923  **/
ixgbe_checksum_ptr_x550(struct ixgbe_hw * hw,u16 ptr,u16 size,u16 * csum,u16 * buffer,u32 buffer_size)924 static s32 ixgbe_checksum_ptr_x550(struct ixgbe_hw *hw, u16 ptr,
925 				   u16 size, u16 *csum, u16 *buffer,
926 				   u32 buffer_size)
927 {
928 	u16 buf[256];
929 	s32 status;
930 	u16 length, bufsz, i, start;
931 	u16 *local_buffer;
932 
933 	bufsz = ARRAY_SIZE(buf);
934 
935 	/* Read a chunk at the pointer location */
936 	if (!buffer) {
937 		status = ixgbe_read_ee_hostif_buffer_X550(hw, ptr, bufsz, buf);
938 		if (status) {
939 			hw_dbg(hw, "Failed to read EEPROM image\n");
940 			return status;
941 		}
942 		local_buffer = buf;
943 	} else {
944 		if (buffer_size < ptr)
945 			return  IXGBE_ERR_PARAM;
946 		local_buffer = &buffer[ptr];
947 	}
948 
949 	if (size) {
950 		start = 0;
951 		length = size;
952 	} else {
953 		start = 1;
954 		length = local_buffer[0];
955 
956 		/* Skip pointer section if length is invalid. */
957 		if (length == 0xFFFF || length == 0 ||
958 		    (ptr + length) >= hw->eeprom.word_size)
959 			return 0;
960 	}
961 
962 	if (buffer && ((u32)start + (u32)length > buffer_size))
963 		return IXGBE_ERR_PARAM;
964 
965 	for (i = start; length; i++, length--) {
966 		if (i == bufsz && !buffer) {
967 			ptr += bufsz;
968 			i = 0;
969 			if (length < bufsz)
970 				bufsz = length;
971 
972 			/* Read a chunk at the pointer location */
973 			status = ixgbe_read_ee_hostif_buffer_X550(hw, ptr,
974 								  bufsz, buf);
975 			if (status) {
976 				hw_dbg(hw, "Failed to read EEPROM image\n");
977 				return status;
978 			}
979 		}
980 		*csum += local_buffer[i];
981 	}
982 	return 0;
983 }
984 
985 /** ixgbe_calc_checksum_X550 - Calculates and returns the checksum
986  *  @hw: pointer to hardware structure
987  *  @buffer: pointer to buffer containing calculated checksum
988  *  @buffer_size: size of buffer
989  *
990  *  Returns a negative error code on error, or the 16-bit checksum
991  **/
ixgbe_calc_checksum_X550(struct ixgbe_hw * hw,u16 * buffer,u32 buffer_size)992 static s32 ixgbe_calc_checksum_X550(struct ixgbe_hw *hw, u16 *buffer,
993 				    u32 buffer_size)
994 {
995 	u16 eeprom_ptrs[IXGBE_EEPROM_LAST_WORD + 1];
996 	u16 *local_buffer;
997 	s32 status;
998 	u16 checksum = 0;
999 	u16 pointer, i, size;
1000 
1001 	hw->eeprom.ops.init_params(hw);
1002 
1003 	if (!buffer) {
1004 		/* Read pointer area */
1005 		status = ixgbe_read_ee_hostif_buffer_X550(hw, 0,
1006 						IXGBE_EEPROM_LAST_WORD + 1,
1007 						eeprom_ptrs);
1008 		if (status) {
1009 			hw_dbg(hw, "Failed to read EEPROM image\n");
1010 			return status;
1011 		}
1012 		local_buffer = eeprom_ptrs;
1013 	} else {
1014 		if (buffer_size < IXGBE_EEPROM_LAST_WORD)
1015 			return IXGBE_ERR_PARAM;
1016 		local_buffer = buffer;
1017 	}
1018 
1019 	/* For X550 hardware include 0x0-0x41 in the checksum, skip the
1020 	 * checksum word itself
1021 	 */
1022 	for (i = 0; i <= IXGBE_EEPROM_LAST_WORD; i++)
1023 		if (i != IXGBE_EEPROM_CHECKSUM)
1024 			checksum += local_buffer[i];
1025 
1026 	/* Include all data from pointers 0x3, 0x6-0xE.  This excludes the
1027 	 * FW, PHY module, and PCIe Expansion/Option ROM pointers.
1028 	 */
1029 	for (i = IXGBE_PCIE_ANALOG_PTR_X550; i < IXGBE_FW_PTR; i++) {
1030 		if (i == IXGBE_PHY_PTR || i == IXGBE_OPTION_ROM_PTR)
1031 			continue;
1032 
1033 		pointer = local_buffer[i];
1034 
1035 		/* Skip pointer section if the pointer is invalid. */
1036 		if (pointer == 0xFFFF || pointer == 0 ||
1037 		    pointer >= hw->eeprom.word_size)
1038 			continue;
1039 
1040 		switch (i) {
1041 		case IXGBE_PCIE_GENERAL_PTR:
1042 			size = IXGBE_IXGBE_PCIE_GENERAL_SIZE;
1043 			break;
1044 		case IXGBE_PCIE_CONFIG0_PTR:
1045 		case IXGBE_PCIE_CONFIG1_PTR:
1046 			size = IXGBE_PCIE_CONFIG_SIZE;
1047 			break;
1048 		default:
1049 			size = 0;
1050 			break;
1051 		}
1052 
1053 		status = ixgbe_checksum_ptr_x550(hw, pointer, size, &checksum,
1054 						 buffer, buffer_size);
1055 		if (status)
1056 			return status;
1057 	}
1058 
1059 	checksum = (u16)IXGBE_EEPROM_SUM - checksum;
1060 
1061 	return (s32)checksum;
1062 }
1063 
1064 /** ixgbe_calc_eeprom_checksum_X550 - Calculates and returns the checksum
1065  *  @hw: pointer to hardware structure
1066  *
1067  *  Returns a negative error code on error, or the 16-bit checksum
1068  **/
ixgbe_calc_eeprom_checksum_X550(struct ixgbe_hw * hw)1069 static s32 ixgbe_calc_eeprom_checksum_X550(struct ixgbe_hw *hw)
1070 {
1071 	return ixgbe_calc_checksum_X550(hw, NULL, 0);
1072 }
1073 
1074 /** ixgbe_read_ee_hostif_X550 - Read EEPROM word using a host interface command
1075  *  @hw: pointer to hardware structure
1076  *  @offset: offset of  word in the EEPROM to read
1077  *  @data: word read from the EEPROM
1078  *
1079  *   Reads a 16 bit word from the EEPROM using the hostif.
1080  **/
ixgbe_read_ee_hostif_X550(struct ixgbe_hw * hw,u16 offset,u16 * data)1081 static s32 ixgbe_read_ee_hostif_X550(struct ixgbe_hw *hw, u16 offset, u16 *data)
1082 {
1083 	const u32 mask = IXGBE_GSSR_SW_MNG_SM | IXGBE_GSSR_EEP_SM;
1084 	struct ixgbe_hic_read_shadow_ram buffer;
1085 	s32 status;
1086 
1087 	buffer.hdr.req.cmd = FW_READ_SHADOW_RAM_CMD;
1088 	buffer.hdr.req.buf_lenh = 0;
1089 	buffer.hdr.req.buf_lenl = FW_READ_SHADOW_RAM_LEN;
1090 	buffer.hdr.req.checksum = FW_DEFAULT_CHECKSUM;
1091 
1092 	/* convert offset from words to bytes */
1093 	buffer.address = (__force u32)cpu_to_be32(offset * 2);
1094 	/* one word */
1095 	buffer.length = (__force u16)cpu_to_be16(sizeof(u16));
1096 
1097 	status = hw->mac.ops.acquire_swfw_sync(hw, mask);
1098 	if (status)
1099 		return status;
1100 
1101 	status = ixgbe_hic_unlocked(hw, (u32 *)&buffer, sizeof(buffer),
1102 				    IXGBE_HI_COMMAND_TIMEOUT);
1103 	if (!status) {
1104 		*data = (u16)IXGBE_READ_REG_ARRAY(hw, IXGBE_FLEX_MNG,
1105 						  FW_NVM_DATA_OFFSET);
1106 	}
1107 
1108 	hw->mac.ops.release_swfw_sync(hw, mask);
1109 	return status;
1110 }
1111 
1112 /** ixgbe_validate_eeprom_checksum_X550 - Validate EEPROM checksum
1113  *  @hw: pointer to hardware structure
1114  *  @checksum_val: calculated checksum
1115  *
1116  *  Performs checksum calculation and validates the EEPROM checksum.  If the
1117  *  caller does not need checksum_val, the value can be NULL.
1118  **/
ixgbe_validate_eeprom_checksum_X550(struct ixgbe_hw * hw,u16 * checksum_val)1119 static s32 ixgbe_validate_eeprom_checksum_X550(struct ixgbe_hw *hw,
1120 					       u16 *checksum_val)
1121 {
1122 	s32 status;
1123 	u16 checksum;
1124 	u16 read_checksum = 0;
1125 
1126 	/* Read the first word from the EEPROM. If this times out or fails, do
1127 	 * not continue or we could be in for a very long wait while every
1128 	 * EEPROM read fails
1129 	 */
1130 	status = hw->eeprom.ops.read(hw, 0, &checksum);
1131 	if (status) {
1132 		hw_dbg(hw, "EEPROM read failed\n");
1133 		return status;
1134 	}
1135 
1136 	status = hw->eeprom.ops.calc_checksum(hw);
1137 	if (status < 0)
1138 		return status;
1139 
1140 	checksum = (u16)(status & 0xffff);
1141 
1142 	status = ixgbe_read_ee_hostif_X550(hw, IXGBE_EEPROM_CHECKSUM,
1143 					   &read_checksum);
1144 	if (status)
1145 		return status;
1146 
1147 	/* Verify read checksum from EEPROM is the same as
1148 	 * calculated checksum
1149 	 */
1150 	if (read_checksum != checksum) {
1151 		status = IXGBE_ERR_EEPROM_CHECKSUM;
1152 		hw_dbg(hw, "Invalid EEPROM checksum");
1153 	}
1154 
1155 	/* If the user cares, return the calculated checksum */
1156 	if (checksum_val)
1157 		*checksum_val = checksum;
1158 
1159 	return status;
1160 }
1161 
1162 /** ixgbe_write_ee_hostif_X550 - Write EEPROM word using hostif
1163  *  @hw: pointer to hardware structure
1164  *  @offset: offset of  word in the EEPROM to write
1165  *  @data: word write to the EEPROM
1166  *
1167  *  Write a 16 bit word to the EEPROM using the hostif.
1168  **/
ixgbe_write_ee_hostif_data_X550(struct ixgbe_hw * hw,u16 offset,u16 data)1169 static s32 ixgbe_write_ee_hostif_data_X550(struct ixgbe_hw *hw, u16 offset,
1170 					   u16 data)
1171 {
1172 	s32 status;
1173 	struct ixgbe_hic_write_shadow_ram buffer;
1174 
1175 	buffer.hdr.req.cmd = FW_WRITE_SHADOW_RAM_CMD;
1176 	buffer.hdr.req.buf_lenh = 0;
1177 	buffer.hdr.req.buf_lenl = FW_WRITE_SHADOW_RAM_LEN;
1178 	buffer.hdr.req.checksum = FW_DEFAULT_CHECKSUM;
1179 
1180 	/* one word */
1181 	buffer.length = cpu_to_be16(sizeof(u16));
1182 	buffer.data = data;
1183 	buffer.address = cpu_to_be32(offset * 2);
1184 
1185 	status = ixgbe_host_interface_command(hw, &buffer, sizeof(buffer),
1186 					      IXGBE_HI_COMMAND_TIMEOUT, false);
1187 	return status;
1188 }
1189 
1190 /** ixgbe_write_ee_hostif_X550 - Write EEPROM word using hostif
1191  *  @hw: pointer to hardware structure
1192  *  @offset: offset of  word in the EEPROM to write
1193  *  @data: word write to the EEPROM
1194  *
1195  *  Write a 16 bit word to the EEPROM using the hostif.
1196  **/
ixgbe_write_ee_hostif_X550(struct ixgbe_hw * hw,u16 offset,u16 data)1197 static s32 ixgbe_write_ee_hostif_X550(struct ixgbe_hw *hw, u16 offset, u16 data)
1198 {
1199 	s32 status = 0;
1200 
1201 	if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM) == 0) {
1202 		status = ixgbe_write_ee_hostif_data_X550(hw, offset, data);
1203 		hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
1204 	} else {
1205 		hw_dbg(hw, "write ee hostif failed to get semaphore");
1206 		status = IXGBE_ERR_SWFW_SYNC;
1207 	}
1208 
1209 	return status;
1210 }
1211 
1212 /** ixgbe_update_flash_X550 - Instruct HW to copy EEPROM to Flash device
1213  *  @hw: pointer to hardware structure
1214  *
1215  *  Issue a shadow RAM dump to FW to copy EEPROM from shadow RAM to the flash.
1216  **/
ixgbe_update_flash_X550(struct ixgbe_hw * hw)1217 static s32 ixgbe_update_flash_X550(struct ixgbe_hw *hw)
1218 {
1219 	s32 status = 0;
1220 	union ixgbe_hic_hdr2 buffer;
1221 
1222 	buffer.req.cmd = FW_SHADOW_RAM_DUMP_CMD;
1223 	buffer.req.buf_lenh = 0;
1224 	buffer.req.buf_lenl = FW_SHADOW_RAM_DUMP_LEN;
1225 	buffer.req.checksum = FW_DEFAULT_CHECKSUM;
1226 
1227 	status = ixgbe_host_interface_command(hw, &buffer, sizeof(buffer),
1228 					      IXGBE_HI_COMMAND_TIMEOUT, false);
1229 	return status;
1230 }
1231 
1232 /**
1233  * ixgbe_get_bus_info_X550em - Set PCI bus info
1234  * @hw: pointer to hardware structure
1235  *
1236  * Sets bus link width and speed to unknown because X550em is
1237  * not a PCI device.
1238  **/
ixgbe_get_bus_info_X550em(struct ixgbe_hw * hw)1239 static s32 ixgbe_get_bus_info_X550em(struct ixgbe_hw *hw)
1240 {
1241 	hw->bus.type  = ixgbe_bus_type_internal;
1242 	hw->bus.width = ixgbe_bus_width_unknown;
1243 	hw->bus.speed = ixgbe_bus_speed_unknown;
1244 
1245 	hw->mac.ops.set_lan_id(hw);
1246 
1247 	return 0;
1248 }
1249 
1250 /**
1251  * ixgbe_fw_recovery_mode_X550 - Check FW NVM recovery mode
1252  * @hw: pointer t hardware structure
1253  *
1254  * Returns true if in FW NVM recovery mode.
1255  */
ixgbe_fw_recovery_mode_X550(struct ixgbe_hw * hw)1256 static bool ixgbe_fw_recovery_mode_X550(struct ixgbe_hw *hw)
1257 {
1258 	u32 fwsm;
1259 
1260 	fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM(hw));
1261 	return !!(fwsm & IXGBE_FWSM_FW_NVM_RECOVERY_MODE);
1262 }
1263 
1264 /** ixgbe_disable_rx_x550 - Disable RX unit
1265  *
1266  *  Enables the Rx DMA unit for x550
1267  **/
ixgbe_disable_rx_x550(struct ixgbe_hw * hw)1268 static void ixgbe_disable_rx_x550(struct ixgbe_hw *hw)
1269 {
1270 	u32 rxctrl, pfdtxgswc;
1271 	s32 status;
1272 	struct ixgbe_hic_disable_rxen fw_cmd;
1273 
1274 	rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
1275 	if (rxctrl & IXGBE_RXCTRL_RXEN) {
1276 		pfdtxgswc = IXGBE_READ_REG(hw, IXGBE_PFDTXGSWC);
1277 		if (pfdtxgswc & IXGBE_PFDTXGSWC_VT_LBEN) {
1278 			pfdtxgswc &= ~IXGBE_PFDTXGSWC_VT_LBEN;
1279 			IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, pfdtxgswc);
1280 			hw->mac.set_lben = true;
1281 		} else {
1282 			hw->mac.set_lben = false;
1283 		}
1284 
1285 		fw_cmd.hdr.cmd = FW_DISABLE_RXEN_CMD;
1286 		fw_cmd.hdr.buf_len = FW_DISABLE_RXEN_LEN;
1287 		fw_cmd.hdr.checksum = FW_DEFAULT_CHECKSUM;
1288 		fw_cmd.port_number = hw->bus.lan_id;
1289 
1290 		status = ixgbe_host_interface_command(hw, &fw_cmd,
1291 					sizeof(struct ixgbe_hic_disable_rxen),
1292 					IXGBE_HI_COMMAND_TIMEOUT, true);
1293 
1294 		/* If we fail - disable RX using register write */
1295 		if (status) {
1296 			rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
1297 			if (rxctrl & IXGBE_RXCTRL_RXEN) {
1298 				rxctrl &= ~IXGBE_RXCTRL_RXEN;
1299 				IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl);
1300 			}
1301 		}
1302 	}
1303 }
1304 
1305 /** ixgbe_update_eeprom_checksum_X550 - Updates the EEPROM checksum and flash
1306  *  @hw: pointer to hardware structure
1307  *
1308  *  After writing EEPROM to shadow RAM using EEWR register, software calculates
1309  *  checksum and updates the EEPROM and instructs the hardware to update
1310  *  the flash.
1311  **/
ixgbe_update_eeprom_checksum_X550(struct ixgbe_hw * hw)1312 static s32 ixgbe_update_eeprom_checksum_X550(struct ixgbe_hw *hw)
1313 {
1314 	s32 status;
1315 	u16 checksum = 0;
1316 
1317 	/* Read the first word from the EEPROM. If this times out or fails, do
1318 	 * not continue or we could be in for a very long wait while every
1319 	 * EEPROM read fails
1320 	 */
1321 	status = ixgbe_read_ee_hostif_X550(hw, 0, &checksum);
1322 	if (status) {
1323 		hw_dbg(hw, "EEPROM read failed\n");
1324 		return status;
1325 	}
1326 
1327 	status = ixgbe_calc_eeprom_checksum_X550(hw);
1328 	if (status < 0)
1329 		return status;
1330 
1331 	checksum = (u16)(status & 0xffff);
1332 
1333 	status = ixgbe_write_ee_hostif_X550(hw, IXGBE_EEPROM_CHECKSUM,
1334 					    checksum);
1335 	if (status)
1336 		return status;
1337 
1338 	status = ixgbe_update_flash_X550(hw);
1339 
1340 	return status;
1341 }
1342 
1343 /** ixgbe_write_ee_hostif_buffer_X550 - Write EEPROM word(s) using hostif
1344  *  @hw: pointer to hardware structure
1345  *  @offset: offset of  word in the EEPROM to write
1346  *  @words: number of words
1347  *  @data: word(s) write to the EEPROM
1348  *
1349  *
1350  *  Write a 16 bit word(s) to the EEPROM using the hostif.
1351  **/
ixgbe_write_ee_hostif_buffer_X550(struct ixgbe_hw * hw,u16 offset,u16 words,u16 * data)1352 static s32 ixgbe_write_ee_hostif_buffer_X550(struct ixgbe_hw *hw,
1353 					     u16 offset, u16 words,
1354 					     u16 *data)
1355 {
1356 	s32 status = 0;
1357 	u32 i = 0;
1358 
1359 	/* Take semaphore for the entire operation. */
1360 	status = hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
1361 	if (status) {
1362 		hw_dbg(hw, "EEPROM write buffer - semaphore failed\n");
1363 		return status;
1364 	}
1365 
1366 	for (i = 0; i < words; i++) {
1367 		status = ixgbe_write_ee_hostif_data_X550(hw, offset + i,
1368 							 data[i]);
1369 		if (status) {
1370 			hw_dbg(hw, "Eeprom buffered write failed\n");
1371 			break;
1372 		}
1373 	}
1374 
1375 	hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
1376 
1377 	return status;
1378 }
1379 
1380 /** ixgbe_write_iosf_sb_reg_x550 - Writes a value to specified register of the
1381  *  IOSF device
1382  *
1383  *  @hw: pointer to hardware structure
1384  *  @reg_addr: 32 bit PHY register to write
1385  *  @device_type: 3 bit device type
1386  *  @data: Data to write to the register
1387  **/
ixgbe_write_iosf_sb_reg_x550(struct ixgbe_hw * hw,u32 reg_addr,u32 device_type,u32 data)1388 static s32 ixgbe_write_iosf_sb_reg_x550(struct ixgbe_hw *hw, u32 reg_addr,
1389 					u32 device_type, u32 data)
1390 {
1391 	u32 gssr = IXGBE_GSSR_PHY1_SM | IXGBE_GSSR_PHY0_SM;
1392 	u32 command, error;
1393 	s32 ret;
1394 
1395 	ret = hw->mac.ops.acquire_swfw_sync(hw, gssr);
1396 	if (ret)
1397 		return ret;
1398 
1399 	ret = ixgbe_iosf_wait(hw, NULL);
1400 	if (ret)
1401 		goto out;
1402 
1403 	command = ((reg_addr << IXGBE_SB_IOSF_CTRL_ADDR_SHIFT) |
1404 		   (device_type << IXGBE_SB_IOSF_CTRL_TARGET_SELECT_SHIFT));
1405 
1406 	/* Write IOSF control register */
1407 	IXGBE_WRITE_REG(hw, IXGBE_SB_IOSF_INDIRECT_CTRL, command);
1408 
1409 	/* Write IOSF data register */
1410 	IXGBE_WRITE_REG(hw, IXGBE_SB_IOSF_INDIRECT_DATA, data);
1411 
1412 	ret = ixgbe_iosf_wait(hw, &command);
1413 
1414 	if ((command & IXGBE_SB_IOSF_CTRL_RESP_STAT_MASK) != 0) {
1415 		error = (command & IXGBE_SB_IOSF_CTRL_CMPL_ERR_MASK) >>
1416 			 IXGBE_SB_IOSF_CTRL_CMPL_ERR_SHIFT;
1417 		hw_dbg(hw, "Failed to write, error %x\n", error);
1418 		return IXGBE_ERR_PHY;
1419 	}
1420 
1421 out:
1422 	hw->mac.ops.release_swfw_sync(hw, gssr);
1423 	return ret;
1424 }
1425 
1426 /**
1427  *  ixgbe_setup_ixfi_x550em_x - MAC specific iXFI configuration
1428  *  @hw: pointer to hardware structure
1429  *
1430  *  iXfI configuration needed for ixgbe_mac_X550EM_x devices.
1431  **/
ixgbe_setup_ixfi_x550em_x(struct ixgbe_hw * hw)1432 static s32 ixgbe_setup_ixfi_x550em_x(struct ixgbe_hw *hw)
1433 {
1434 	s32 status;
1435 	u32 reg_val;
1436 
1437 	/* Disable training protocol FSM. */
1438 	status = ixgbe_read_iosf_sb_reg_x550(hw,
1439 				IXGBE_KRM_RX_TRN_LINKUP_CTRL(hw->bus.lan_id),
1440 				IXGBE_SB_IOSF_TARGET_KR_PHY, &reg_val);
1441 	if (status)
1442 		return status;
1443 
1444 	reg_val |= IXGBE_KRM_RX_TRN_LINKUP_CTRL_CONV_WO_PROTOCOL;
1445 	status = ixgbe_write_iosf_sb_reg_x550(hw,
1446 				IXGBE_KRM_RX_TRN_LINKUP_CTRL(hw->bus.lan_id),
1447 				IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1448 	if (status)
1449 		return status;
1450 
1451 	/* Disable Flex from training TXFFE. */
1452 	status = ixgbe_read_iosf_sb_reg_x550(hw,
1453 				IXGBE_KRM_DSP_TXFFE_STATE_4(hw->bus.lan_id),
1454 				IXGBE_SB_IOSF_TARGET_KR_PHY, &reg_val);
1455 	if (status)
1456 		return status;
1457 
1458 	reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_C0_EN;
1459 	reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_CP1_CN1_EN;
1460 	reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_CO_ADAPT_EN;
1461 	status = ixgbe_write_iosf_sb_reg_x550(hw,
1462 				IXGBE_KRM_DSP_TXFFE_STATE_4(hw->bus.lan_id),
1463 				IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1464 	if (status)
1465 		return status;
1466 
1467 	status = ixgbe_read_iosf_sb_reg_x550(hw,
1468 				IXGBE_KRM_DSP_TXFFE_STATE_5(hw->bus.lan_id),
1469 				IXGBE_SB_IOSF_TARGET_KR_PHY, &reg_val);
1470 	if (status)
1471 		return status;
1472 
1473 	reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_C0_EN;
1474 	reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_CP1_CN1_EN;
1475 	reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_CO_ADAPT_EN;
1476 	status = ixgbe_write_iosf_sb_reg_x550(hw,
1477 				IXGBE_KRM_DSP_TXFFE_STATE_5(hw->bus.lan_id),
1478 				IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1479 	if (status)
1480 		return status;
1481 
1482 	/* Enable override for coefficients. */
1483 	status = ixgbe_read_iosf_sb_reg_x550(hw,
1484 				IXGBE_KRM_TX_COEFF_CTRL_1(hw->bus.lan_id),
1485 				IXGBE_SB_IOSF_TARGET_KR_PHY, &reg_val);
1486 	if (status)
1487 		return status;
1488 
1489 	reg_val |= IXGBE_KRM_TX_COEFF_CTRL_1_OVRRD_EN;
1490 	reg_val |= IXGBE_KRM_TX_COEFF_CTRL_1_CZERO_EN;
1491 	reg_val |= IXGBE_KRM_TX_COEFF_CTRL_1_CPLUS1_OVRRD_EN;
1492 	reg_val |= IXGBE_KRM_TX_COEFF_CTRL_1_CMINUS1_OVRRD_EN;
1493 	status = ixgbe_write_iosf_sb_reg_x550(hw,
1494 				IXGBE_KRM_TX_COEFF_CTRL_1(hw->bus.lan_id),
1495 				IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1496 	return status;
1497 }
1498 
1499 /**
1500  *  ixgbe_restart_an_internal_phy_x550em - restart autonegotiation for the
1501  *  internal PHY
1502  *  @hw: pointer to hardware structure
1503  **/
ixgbe_restart_an_internal_phy_x550em(struct ixgbe_hw * hw)1504 static s32 ixgbe_restart_an_internal_phy_x550em(struct ixgbe_hw *hw)
1505 {
1506 	s32 status;
1507 	u32 link_ctrl;
1508 
1509 	/* Restart auto-negotiation. */
1510 	status = hw->mac.ops.read_iosf_sb_reg(hw,
1511 				IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1512 				IXGBE_SB_IOSF_TARGET_KR_PHY, &link_ctrl);
1513 
1514 	if (status) {
1515 		hw_dbg(hw, "Auto-negotiation did not complete\n");
1516 		return status;
1517 	}
1518 
1519 	link_ctrl |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_RESTART;
1520 	status = hw->mac.ops.write_iosf_sb_reg(hw,
1521 				IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1522 				IXGBE_SB_IOSF_TARGET_KR_PHY, link_ctrl);
1523 
1524 	if (hw->mac.type == ixgbe_mac_x550em_a) {
1525 		u32 flx_mask_st20;
1526 
1527 		/* Indicate to FW that AN restart has been asserted */
1528 		status = hw->mac.ops.read_iosf_sb_reg(hw,
1529 				IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1530 				IXGBE_SB_IOSF_TARGET_KR_PHY, &flx_mask_st20);
1531 
1532 		if (status) {
1533 			hw_dbg(hw, "Auto-negotiation did not complete\n");
1534 			return status;
1535 		}
1536 
1537 		flx_mask_st20 |= IXGBE_KRM_PMD_FLX_MASK_ST20_FW_AN_RESTART;
1538 		status = hw->mac.ops.write_iosf_sb_reg(hw,
1539 				IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1540 				IXGBE_SB_IOSF_TARGET_KR_PHY, flx_mask_st20);
1541 	}
1542 
1543 	return status;
1544 }
1545 
1546 /** ixgbe_setup_ixfi_x550em - Configure the KR PHY for iXFI mode.
1547  *  @hw: pointer to hardware structure
1548  *  @speed: the link speed to force
1549  *
1550  *  Configures the integrated KR PHY to use iXFI mode. Used to connect an
1551  *  internal and external PHY at a specific speed, without autonegotiation.
1552  **/
ixgbe_setup_ixfi_x550em(struct ixgbe_hw * hw,ixgbe_link_speed * speed)1553 static s32 ixgbe_setup_ixfi_x550em(struct ixgbe_hw *hw, ixgbe_link_speed *speed)
1554 {
1555 	struct ixgbe_mac_info *mac = &hw->mac;
1556 	s32 status;
1557 	u32 reg_val;
1558 
1559 	/* iXFI is only supported with X552 */
1560 	if (mac->type != ixgbe_mac_X550EM_x)
1561 		return IXGBE_ERR_LINK_SETUP;
1562 
1563 	/* Disable AN and force speed to 10G Serial. */
1564 	status = ixgbe_read_iosf_sb_reg_x550(hw,
1565 					IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1566 					IXGBE_SB_IOSF_TARGET_KR_PHY, &reg_val);
1567 	if (status)
1568 		return status;
1569 
1570 	reg_val &= ~IXGBE_KRM_LINK_CTRL_1_TETH_AN_ENABLE;
1571 	reg_val &= ~IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_MASK;
1572 
1573 	/* Select forced link speed for internal PHY. */
1574 	switch (*speed) {
1575 	case IXGBE_LINK_SPEED_10GB_FULL:
1576 		reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_10G;
1577 		break;
1578 	case IXGBE_LINK_SPEED_1GB_FULL:
1579 		reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_1G;
1580 		break;
1581 	default:
1582 		/* Other link speeds are not supported by internal KR PHY. */
1583 		return IXGBE_ERR_LINK_SETUP;
1584 	}
1585 
1586 	status = ixgbe_write_iosf_sb_reg_x550(hw,
1587 				IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1588 				IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1589 	if (status)
1590 		return status;
1591 
1592 	/* Additional configuration needed for x550em_x */
1593 	if (hw->mac.type == ixgbe_mac_X550EM_x) {
1594 		status = ixgbe_setup_ixfi_x550em_x(hw);
1595 		if (status)
1596 			return status;
1597 	}
1598 
1599 	/* Toggle port SW reset by AN reset. */
1600 	status = ixgbe_restart_an_internal_phy_x550em(hw);
1601 
1602 	return status;
1603 }
1604 
1605 /**
1606  *  ixgbe_supported_sfp_modules_X550em - Check if SFP module type is supported
1607  *  @hw: pointer to hardware structure
1608  *  @linear: true if SFP module is linear
1609  */
ixgbe_supported_sfp_modules_X550em(struct ixgbe_hw * hw,bool * linear)1610 static s32 ixgbe_supported_sfp_modules_X550em(struct ixgbe_hw *hw, bool *linear)
1611 {
1612 	switch (hw->phy.sfp_type) {
1613 	case ixgbe_sfp_type_not_present:
1614 		return IXGBE_ERR_SFP_NOT_PRESENT;
1615 	case ixgbe_sfp_type_da_cu_core0:
1616 	case ixgbe_sfp_type_da_cu_core1:
1617 		*linear = true;
1618 		break;
1619 	case ixgbe_sfp_type_srlr_core0:
1620 	case ixgbe_sfp_type_srlr_core1:
1621 	case ixgbe_sfp_type_da_act_lmt_core0:
1622 	case ixgbe_sfp_type_da_act_lmt_core1:
1623 	case ixgbe_sfp_type_1g_sx_core0:
1624 	case ixgbe_sfp_type_1g_sx_core1:
1625 	case ixgbe_sfp_type_1g_lx_core0:
1626 	case ixgbe_sfp_type_1g_lx_core1:
1627 		*linear = false;
1628 		break;
1629 	case ixgbe_sfp_type_unknown:
1630 	case ixgbe_sfp_type_1g_cu_core0:
1631 	case ixgbe_sfp_type_1g_cu_core1:
1632 	default:
1633 		return IXGBE_ERR_SFP_NOT_SUPPORTED;
1634 	}
1635 
1636 	return 0;
1637 }
1638 
1639 /**
1640  * ixgbe_setup_mac_link_sfp_x550em - Configure the KR PHY for SFP.
1641  * @hw: pointer to hardware structure
1642  * @speed: the link speed to force
1643  * @autoneg_wait_to_complete: unused
1644  *
1645  * Configures the extern PHY and the integrated KR PHY for SFP support.
1646  */
1647 static s32
ixgbe_setup_mac_link_sfp_x550em(struct ixgbe_hw * hw,ixgbe_link_speed speed,__always_unused bool autoneg_wait_to_complete)1648 ixgbe_setup_mac_link_sfp_x550em(struct ixgbe_hw *hw,
1649 				ixgbe_link_speed speed,
1650 				__always_unused bool autoneg_wait_to_complete)
1651 {
1652 	s32 status;
1653 	u16 reg_slice, reg_val;
1654 	bool setup_linear = false;
1655 
1656 	/* Check if SFP module is supported and linear */
1657 	status = ixgbe_supported_sfp_modules_X550em(hw, &setup_linear);
1658 
1659 	/* If no SFP module present, then return success. Return success since
1660 	 * there is no reason to configure CS4227 and SFP not present error is
1661 	 * not accepted in the setup MAC link flow.
1662 	 */
1663 	if (status == IXGBE_ERR_SFP_NOT_PRESENT)
1664 		return 0;
1665 
1666 	if (status)
1667 		return status;
1668 
1669 	/* Configure internal PHY for KR/KX. */
1670 	ixgbe_setup_kr_speed_x550em(hw, speed);
1671 
1672 	/* Configure CS4227 LINE side to proper mode. */
1673 	reg_slice = IXGBE_CS4227_LINE_SPARE24_LSB + (hw->bus.lan_id << 12);
1674 	if (setup_linear)
1675 		reg_val = (IXGBE_CS4227_EDC_MODE_CX1 << 1) | 0x1;
1676 	else
1677 		reg_val = (IXGBE_CS4227_EDC_MODE_SR << 1) | 0x1;
1678 
1679 	status = hw->link.ops.write_link(hw, hw->link.addr, reg_slice,
1680 					 reg_val);
1681 
1682 	return status;
1683 }
1684 
1685 /**
1686  * ixgbe_setup_sfi_x550a - Configure the internal PHY for native SFI mode
1687  * @hw: pointer to hardware structure
1688  * @speed: the link speed to force
1689  *
1690  * Configures the integrated PHY for native SFI mode. Used to connect the
1691  * internal PHY directly to an SFP cage, without autonegotiation.
1692  **/
ixgbe_setup_sfi_x550a(struct ixgbe_hw * hw,ixgbe_link_speed * speed)1693 static s32 ixgbe_setup_sfi_x550a(struct ixgbe_hw *hw, ixgbe_link_speed *speed)
1694 {
1695 	struct ixgbe_mac_info *mac = &hw->mac;
1696 	s32 status;
1697 	u32 reg_val;
1698 
1699 	/* Disable all AN and force speed to 10G Serial. */
1700 	status = mac->ops.read_iosf_sb_reg(hw,
1701 				IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1702 				IXGBE_SB_IOSF_TARGET_KR_PHY, &reg_val);
1703 	if (status)
1704 		return status;
1705 
1706 	reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_AN_EN;
1707 	reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_AN37_EN;
1708 	reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SGMII_EN;
1709 	reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_MASK;
1710 
1711 	/* Select forced link speed for internal PHY. */
1712 	switch (*speed) {
1713 	case IXGBE_LINK_SPEED_10GB_FULL:
1714 		reg_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_10G;
1715 		break;
1716 	case IXGBE_LINK_SPEED_1GB_FULL:
1717 		reg_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_1G;
1718 		break;
1719 	default:
1720 		/* Other link speeds are not supported by internal PHY. */
1721 		return IXGBE_ERR_LINK_SETUP;
1722 	}
1723 
1724 	(void)mac->ops.write_iosf_sb_reg(hw,
1725 			IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1726 			IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1727 
1728 	/* change mode enforcement rules to hybrid */
1729 	(void)mac->ops.read_iosf_sb_reg(hw,
1730 			IXGBE_KRM_FLX_TMRS_CTRL_ST31(hw->bus.lan_id),
1731 			IXGBE_SB_IOSF_TARGET_KR_PHY, &reg_val);
1732 	reg_val |= 0x0400;
1733 
1734 	(void)mac->ops.write_iosf_sb_reg(hw,
1735 			IXGBE_KRM_FLX_TMRS_CTRL_ST31(hw->bus.lan_id),
1736 			IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1737 
1738 	/* manually control the config */
1739 	(void)mac->ops.read_iosf_sb_reg(hw,
1740 			IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1741 			IXGBE_SB_IOSF_TARGET_KR_PHY, &reg_val);
1742 	reg_val |= 0x20002240;
1743 
1744 	(void)mac->ops.write_iosf_sb_reg(hw,
1745 			IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1746 			IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1747 
1748 	/* move the AN base page values */
1749 	(void)mac->ops.read_iosf_sb_reg(hw,
1750 			IXGBE_KRM_PCS_KX_AN(hw->bus.lan_id),
1751 			IXGBE_SB_IOSF_TARGET_KR_PHY, &reg_val);
1752 	reg_val |= 0x1;
1753 
1754 	(void)mac->ops.write_iosf_sb_reg(hw,
1755 			IXGBE_KRM_PCS_KX_AN(hw->bus.lan_id),
1756 			IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1757 
1758 	/* set the AN37 over CB mode */
1759 	(void)mac->ops.read_iosf_sb_reg(hw,
1760 			IXGBE_KRM_AN_CNTL_4(hw->bus.lan_id),
1761 			IXGBE_SB_IOSF_TARGET_KR_PHY, &reg_val);
1762 	reg_val |= 0x20000000;
1763 
1764 	(void)mac->ops.write_iosf_sb_reg(hw,
1765 			IXGBE_KRM_AN_CNTL_4(hw->bus.lan_id),
1766 			IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1767 
1768 	/* restart AN manually */
1769 	(void)mac->ops.read_iosf_sb_reg(hw,
1770 			IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1771 			IXGBE_SB_IOSF_TARGET_KR_PHY, &reg_val);
1772 	reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_RESTART;
1773 
1774 	(void)mac->ops.write_iosf_sb_reg(hw,
1775 			IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1776 			IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1777 
1778 	/* Toggle port SW reset by AN reset. */
1779 	status = ixgbe_restart_an_internal_phy_x550em(hw);
1780 
1781 	return status;
1782 }
1783 
1784 /**
1785  * ixgbe_setup_mac_link_sfp_n - Setup internal PHY for native SFP
1786  * @hw: pointer to hardware structure
1787  * @speed: link speed
1788  * @autoneg_wait_to_complete: unused
1789  *
1790  * Configure the integrated PHY for native SFP support.
1791  */
1792 static s32
ixgbe_setup_mac_link_sfp_n(struct ixgbe_hw * hw,ixgbe_link_speed speed,__always_unused bool autoneg_wait_to_complete)1793 ixgbe_setup_mac_link_sfp_n(struct ixgbe_hw *hw, ixgbe_link_speed speed,
1794 			   __always_unused bool autoneg_wait_to_complete)
1795 {
1796 	bool setup_linear = false;
1797 	u32 reg_phy_int;
1798 	s32 ret_val;
1799 
1800 	/* Check if SFP module is supported and linear */
1801 	ret_val = ixgbe_supported_sfp_modules_X550em(hw, &setup_linear);
1802 
1803 	/* If no SFP module present, then return success. Return success since
1804 	 * SFP not present error is not excepted in the setup MAC link flow.
1805 	 */
1806 	if (ret_val == IXGBE_ERR_SFP_NOT_PRESENT)
1807 		return 0;
1808 
1809 	if (ret_val)
1810 		return ret_val;
1811 
1812 	/* Configure internal PHY for native SFI based on module type */
1813 	ret_val = hw->mac.ops.read_iosf_sb_reg(hw,
1814 				IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1815 				IXGBE_SB_IOSF_TARGET_KR_PHY, &reg_phy_int);
1816 	if (ret_val)
1817 		return ret_val;
1818 
1819 	reg_phy_int &= IXGBE_KRM_PMD_FLX_MASK_ST20_SFI_10G_DA;
1820 	if (!setup_linear)
1821 		reg_phy_int |= IXGBE_KRM_PMD_FLX_MASK_ST20_SFI_10G_SR;
1822 
1823 	ret_val = hw->mac.ops.write_iosf_sb_reg(hw,
1824 				IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1825 				IXGBE_SB_IOSF_TARGET_KR_PHY, reg_phy_int);
1826 	if (ret_val)
1827 		return ret_val;
1828 
1829 	/* Setup SFI internal link. */
1830 	return ixgbe_setup_sfi_x550a(hw, &speed);
1831 }
1832 
1833 /**
1834  * ixgbe_setup_mac_link_sfp_x550a - Setup internal PHY for SFP
1835  * @hw: pointer to hardware structure
1836  * @speed: link speed
1837  * @autoneg_wait_to_complete: unused
1838  *
1839  * Configure the integrated PHY for SFP support.
1840  */
1841 static s32
ixgbe_setup_mac_link_sfp_x550a(struct ixgbe_hw * hw,ixgbe_link_speed speed,__always_unused bool autoneg_wait_to_complete)1842 ixgbe_setup_mac_link_sfp_x550a(struct ixgbe_hw *hw, ixgbe_link_speed speed,
1843 			       __always_unused bool autoneg_wait_to_complete)
1844 {
1845 	u32 reg_slice, slice_offset;
1846 	bool setup_linear = false;
1847 	u16 reg_phy_ext;
1848 	s32 ret_val;
1849 
1850 	/* Check if SFP module is supported and linear */
1851 	ret_val = ixgbe_supported_sfp_modules_X550em(hw, &setup_linear);
1852 
1853 	/* If no SFP module present, then return success. Return success since
1854 	 * SFP not present error is not excepted in the setup MAC link flow.
1855 	 */
1856 	if (ret_val == IXGBE_ERR_SFP_NOT_PRESENT)
1857 		return 0;
1858 
1859 	if (ret_val)
1860 		return ret_val;
1861 
1862 	/* Configure internal PHY for KR/KX. */
1863 	ixgbe_setup_kr_speed_x550em(hw, speed);
1864 
1865 	if (hw->phy.mdio.prtad == MDIO_PRTAD_NONE)
1866 		return IXGBE_ERR_PHY_ADDR_INVALID;
1867 
1868 	/* Get external PHY SKU id */
1869 	ret_val = hw->phy.ops.read_reg(hw, IXGBE_CS4227_EFUSE_PDF_SKU,
1870 				       IXGBE_MDIO_ZERO_DEV_TYPE, &reg_phy_ext);
1871 	if (ret_val)
1872 		return ret_val;
1873 
1874 	/* When configuring quad port CS4223, the MAC instance is part
1875 	 * of the slice offset.
1876 	 */
1877 	if (reg_phy_ext == IXGBE_CS4223_SKU_ID)
1878 		slice_offset = (hw->bus.lan_id +
1879 				(hw->bus.instance_id << 1)) << 12;
1880 	else
1881 		slice_offset = hw->bus.lan_id << 12;
1882 
1883 	/* Configure CS4227/CS4223 LINE side to proper mode. */
1884 	reg_slice = IXGBE_CS4227_LINE_SPARE24_LSB + slice_offset;
1885 
1886 	ret_val = hw->phy.ops.read_reg(hw, reg_slice,
1887 				       IXGBE_MDIO_ZERO_DEV_TYPE, &reg_phy_ext);
1888 	if (ret_val)
1889 		return ret_val;
1890 
1891 	reg_phy_ext &= ~((IXGBE_CS4227_EDC_MODE_CX1 << 1) |
1892 			 (IXGBE_CS4227_EDC_MODE_SR << 1));
1893 
1894 	if (setup_linear)
1895 		reg_phy_ext |= (IXGBE_CS4227_EDC_MODE_CX1 << 1) | 1;
1896 	else
1897 		reg_phy_ext |= (IXGBE_CS4227_EDC_MODE_SR << 1) | 1;
1898 
1899 	ret_val = hw->phy.ops.write_reg(hw, reg_slice,
1900 					IXGBE_MDIO_ZERO_DEV_TYPE, reg_phy_ext);
1901 	if (ret_val)
1902 		return ret_val;
1903 
1904 	/* Flush previous write with a read */
1905 	return hw->phy.ops.read_reg(hw, reg_slice,
1906 				    IXGBE_MDIO_ZERO_DEV_TYPE, &reg_phy_ext);
1907 }
1908 
1909 /**
1910  * ixgbe_setup_mac_link_t_X550em - Sets the auto advertised link speed
1911  * @hw: pointer to hardware structure
1912  * @speed: new link speed
1913  * @autoneg_wait: true when waiting for completion is needed
1914  *
1915  * Setup internal/external PHY link speed based on link speed, then set
1916  * external PHY auto advertised link speed.
1917  *
1918  * Returns error status for any failure
1919  **/
ixgbe_setup_mac_link_t_X550em(struct ixgbe_hw * hw,ixgbe_link_speed speed,bool autoneg_wait)1920 static s32 ixgbe_setup_mac_link_t_X550em(struct ixgbe_hw *hw,
1921 					 ixgbe_link_speed speed,
1922 					 bool autoneg_wait)
1923 {
1924 	s32 status;
1925 	ixgbe_link_speed force_speed;
1926 
1927 	/* Setup internal/external PHY link speed to iXFI (10G), unless
1928 	 * only 1G is auto advertised then setup KX link.
1929 	 */
1930 	if (speed & IXGBE_LINK_SPEED_10GB_FULL)
1931 		force_speed = IXGBE_LINK_SPEED_10GB_FULL;
1932 	else
1933 		force_speed = IXGBE_LINK_SPEED_1GB_FULL;
1934 
1935 	/* If X552 and internal link mode is XFI, then setup XFI internal link.
1936 	 */
1937 	if (hw->mac.type == ixgbe_mac_X550EM_x &&
1938 	    !(hw->phy.nw_mng_if_sel & IXGBE_NW_MNG_IF_SEL_INT_PHY_MODE)) {
1939 		status = ixgbe_setup_ixfi_x550em(hw, &force_speed);
1940 
1941 		if (status)
1942 			return status;
1943 	}
1944 
1945 	return hw->phy.ops.setup_link_speed(hw, speed, autoneg_wait);
1946 }
1947 
1948 /** ixgbe_check_link_t_X550em - Determine link and speed status
1949   * @hw: pointer to hardware structure
1950   * @speed: pointer to link speed
1951   * @link_up: true when link is up
1952   * @link_up_wait_to_complete: bool used to wait for link up or not
1953   *
1954   * Check that both the MAC and X557 external PHY have link.
1955   **/
ixgbe_check_link_t_X550em(struct ixgbe_hw * hw,ixgbe_link_speed * speed,bool * link_up,bool link_up_wait_to_complete)1956 static s32 ixgbe_check_link_t_X550em(struct ixgbe_hw *hw,
1957 				     ixgbe_link_speed *speed,
1958 				     bool *link_up,
1959 				     bool link_up_wait_to_complete)
1960 {
1961 	u32 status;
1962 	u16 i, autoneg_status;
1963 
1964 	if (hw->mac.ops.get_media_type(hw) != ixgbe_media_type_copper)
1965 		return IXGBE_ERR_CONFIG;
1966 
1967 	status = ixgbe_check_mac_link_generic(hw, speed, link_up,
1968 					      link_up_wait_to_complete);
1969 
1970 	/* If check link fails or MAC link is not up, then return */
1971 	if (status || !(*link_up))
1972 		return status;
1973 
1974 	/* MAC link is up, so check external PHY link.
1975 	 * Link status is latching low, and can only be used to detect link
1976 	 * drop, and not the current status of the link without performing
1977 	 * back-to-back reads.
1978 	 */
1979 	for (i = 0; i < 2; i++) {
1980 		status = hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN,
1981 					      &autoneg_status);
1982 
1983 		if (status)
1984 			return status;
1985 	}
1986 
1987 	/* If external PHY link is not up, then indicate link not up */
1988 	if (!(autoneg_status & IXGBE_MDIO_AUTO_NEG_LINK_STATUS))
1989 		*link_up = false;
1990 
1991 	return 0;
1992 }
1993 
1994 /**
1995  * ixgbe_setup_sgmii - Set up link for sgmii
1996  * @hw: pointer to hardware structure
1997  * @speed: unused
1998  * @autoneg_wait_to_complete: unused
1999  */
2000 static s32
ixgbe_setup_sgmii(struct ixgbe_hw * hw,__always_unused ixgbe_link_speed speed,__always_unused bool autoneg_wait_to_complete)2001 ixgbe_setup_sgmii(struct ixgbe_hw *hw, __always_unused ixgbe_link_speed speed,
2002 		  __always_unused bool autoneg_wait_to_complete)
2003 {
2004 	struct ixgbe_mac_info *mac = &hw->mac;
2005 	u32 lval, sval, flx_val;
2006 	s32 rc;
2007 
2008 	rc = mac->ops.read_iosf_sb_reg(hw,
2009 				       IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2010 				       IXGBE_SB_IOSF_TARGET_KR_PHY, &lval);
2011 	if (rc)
2012 		return rc;
2013 
2014 	lval &= ~IXGBE_KRM_LINK_CTRL_1_TETH_AN_ENABLE;
2015 	lval &= ~IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_MASK;
2016 	lval |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_SGMII_EN;
2017 	lval |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_CLAUSE_37_EN;
2018 	lval |= IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_1G;
2019 	rc = mac->ops.write_iosf_sb_reg(hw,
2020 					IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2021 					IXGBE_SB_IOSF_TARGET_KR_PHY, lval);
2022 	if (rc)
2023 		return rc;
2024 
2025 	rc = mac->ops.read_iosf_sb_reg(hw,
2026 				       IXGBE_KRM_SGMII_CTRL(hw->bus.lan_id),
2027 				       IXGBE_SB_IOSF_TARGET_KR_PHY, &sval);
2028 	if (rc)
2029 		return rc;
2030 
2031 	sval |= IXGBE_KRM_SGMII_CTRL_MAC_TAR_FORCE_10_D;
2032 	sval |= IXGBE_KRM_SGMII_CTRL_MAC_TAR_FORCE_100_D;
2033 	rc = mac->ops.write_iosf_sb_reg(hw,
2034 					IXGBE_KRM_SGMII_CTRL(hw->bus.lan_id),
2035 					IXGBE_SB_IOSF_TARGET_KR_PHY, sval);
2036 	if (rc)
2037 		return rc;
2038 
2039 	rc = mac->ops.read_iosf_sb_reg(hw,
2040 				IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2041 				IXGBE_SB_IOSF_TARGET_KR_PHY, &flx_val);
2042 	if (rc)
2043 		return rc;
2044 
2045 	rc = mac->ops.read_iosf_sb_reg(hw,
2046 				IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2047 				IXGBE_SB_IOSF_TARGET_KR_PHY, &flx_val);
2048 	if (rc)
2049 		return rc;
2050 
2051 	flx_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_MASK;
2052 	flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_1G;
2053 	flx_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_AN_EN;
2054 	flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SGMII_EN;
2055 	flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_AN37_EN;
2056 
2057 	rc = mac->ops.write_iosf_sb_reg(hw,
2058 				IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2059 				IXGBE_SB_IOSF_TARGET_KR_PHY, flx_val);
2060 	if (rc)
2061 		return rc;
2062 
2063 	rc = ixgbe_restart_an_internal_phy_x550em(hw);
2064 	return rc;
2065 }
2066 
2067 /**
2068  * ixgbe_setup_sgmii_fw - Set up link for sgmii with firmware-controlled PHYs
2069  * @hw: pointer to hardware structure
2070  * @speed: the link speed to force
2071  * @autoneg_wait: true when waiting for completion is needed
2072  */
ixgbe_setup_sgmii_fw(struct ixgbe_hw * hw,ixgbe_link_speed speed,bool autoneg_wait)2073 static s32 ixgbe_setup_sgmii_fw(struct ixgbe_hw *hw, ixgbe_link_speed speed,
2074 				bool autoneg_wait)
2075 {
2076 	struct ixgbe_mac_info *mac = &hw->mac;
2077 	u32 lval, sval, flx_val;
2078 	s32 rc;
2079 
2080 	rc = mac->ops.read_iosf_sb_reg(hw,
2081 				       IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2082 				       IXGBE_SB_IOSF_TARGET_KR_PHY, &lval);
2083 	if (rc)
2084 		return rc;
2085 
2086 	lval &= ~IXGBE_KRM_LINK_CTRL_1_TETH_AN_ENABLE;
2087 	lval &= ~IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_MASK;
2088 	lval |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_SGMII_EN;
2089 	lval |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_CLAUSE_37_EN;
2090 	lval &= ~IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_1G;
2091 	rc = mac->ops.write_iosf_sb_reg(hw,
2092 					IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2093 					IXGBE_SB_IOSF_TARGET_KR_PHY, lval);
2094 	if (rc)
2095 		return rc;
2096 
2097 	rc = mac->ops.read_iosf_sb_reg(hw,
2098 				       IXGBE_KRM_SGMII_CTRL(hw->bus.lan_id),
2099 				       IXGBE_SB_IOSF_TARGET_KR_PHY, &sval);
2100 	if (rc)
2101 		return rc;
2102 
2103 	sval &= ~IXGBE_KRM_SGMII_CTRL_MAC_TAR_FORCE_10_D;
2104 	sval &= ~IXGBE_KRM_SGMII_CTRL_MAC_TAR_FORCE_100_D;
2105 	rc = mac->ops.write_iosf_sb_reg(hw,
2106 					IXGBE_KRM_SGMII_CTRL(hw->bus.lan_id),
2107 					IXGBE_SB_IOSF_TARGET_KR_PHY, sval);
2108 	if (rc)
2109 		return rc;
2110 
2111 	rc = mac->ops.write_iosf_sb_reg(hw,
2112 					IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2113 					IXGBE_SB_IOSF_TARGET_KR_PHY, lval);
2114 	if (rc)
2115 		return rc;
2116 
2117 	rc = mac->ops.read_iosf_sb_reg(hw,
2118 				    IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2119 				    IXGBE_SB_IOSF_TARGET_KR_PHY, &flx_val);
2120 	if (rc)
2121 		return rc;
2122 
2123 	flx_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_MASK;
2124 	flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_AN;
2125 	flx_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_AN_EN;
2126 	flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SGMII_EN;
2127 	flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_AN37_EN;
2128 
2129 	rc = mac->ops.write_iosf_sb_reg(hw,
2130 				    IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2131 				    IXGBE_SB_IOSF_TARGET_KR_PHY, flx_val);
2132 	if (rc)
2133 		return rc;
2134 
2135 	ixgbe_restart_an_internal_phy_x550em(hw);
2136 
2137 	return hw->phy.ops.setup_link_speed(hw, speed, autoneg_wait);
2138 }
2139 
2140 /**
2141  * ixgbe_fc_autoneg_sgmii_x550em_a - Enable flow control IEEE clause 37
2142  * @hw: pointer to hardware structure
2143  *
2144  * Enable flow control according to IEEE clause 37.
2145  */
ixgbe_fc_autoneg_sgmii_x550em_a(struct ixgbe_hw * hw)2146 static void ixgbe_fc_autoneg_sgmii_x550em_a(struct ixgbe_hw *hw)
2147 {
2148 	s32 status = IXGBE_ERR_FC_NOT_NEGOTIATED;
2149 	u32 info[FW_PHY_ACT_DATA_COUNT] = { 0 };
2150 	ixgbe_link_speed speed;
2151 	bool link_up;
2152 
2153 	/* AN should have completed when the cable was plugged in.
2154 	 * Look for reasons to bail out.  Bail out if:
2155 	 * - FC autoneg is disabled, or if
2156 	 * - link is not up.
2157 	 */
2158 	if (hw->fc.disable_fc_autoneg)
2159 		goto out;
2160 
2161 	hw->mac.ops.check_link(hw, &speed, &link_up, false);
2162 	if (!link_up)
2163 		goto out;
2164 
2165 	/* Check if auto-negotiation has completed */
2166 	status = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_GET_LINK_INFO, &info);
2167 	if (status || !(info[0] & FW_PHY_ACT_GET_LINK_INFO_AN_COMPLETE)) {
2168 		status = IXGBE_ERR_FC_NOT_NEGOTIATED;
2169 		goto out;
2170 	}
2171 
2172 	/* Negotiate the flow control */
2173 	status = ixgbe_negotiate_fc(hw, info[0], info[0],
2174 				    FW_PHY_ACT_GET_LINK_INFO_FC_RX,
2175 				    FW_PHY_ACT_GET_LINK_INFO_FC_TX,
2176 				    FW_PHY_ACT_GET_LINK_INFO_LP_FC_RX,
2177 				    FW_PHY_ACT_GET_LINK_INFO_LP_FC_TX);
2178 
2179 out:
2180 	if (!status) {
2181 		hw->fc.fc_was_autonegged = true;
2182 	} else {
2183 		hw->fc.fc_was_autonegged = false;
2184 		hw->fc.current_mode = hw->fc.requested_mode;
2185 	}
2186 }
2187 
2188 /** ixgbe_init_mac_link_ops_X550em_a - Init mac link function pointers
2189  *  @hw: pointer to hardware structure
2190  **/
ixgbe_init_mac_link_ops_X550em_a(struct ixgbe_hw * hw)2191 static void ixgbe_init_mac_link_ops_X550em_a(struct ixgbe_hw *hw)
2192 {
2193 	struct ixgbe_mac_info *mac = &hw->mac;
2194 
2195 	switch (mac->ops.get_media_type(hw)) {
2196 	case ixgbe_media_type_fiber:
2197 		mac->ops.setup_fc = NULL;
2198 		mac->ops.fc_autoneg = ixgbe_fc_autoneg_fiber_x550em_a;
2199 		break;
2200 	case ixgbe_media_type_copper:
2201 		if (hw->device_id != IXGBE_DEV_ID_X550EM_A_1G_T &&
2202 		    hw->device_id != IXGBE_DEV_ID_X550EM_A_1G_T_L) {
2203 			mac->ops.setup_link = ixgbe_setup_mac_link_t_X550em;
2204 			break;
2205 		}
2206 		mac->ops.fc_autoneg = ixgbe_fc_autoneg_sgmii_x550em_a;
2207 		mac->ops.setup_fc = ixgbe_fc_autoneg_fw;
2208 		mac->ops.setup_link = ixgbe_setup_sgmii_fw;
2209 		mac->ops.check_link = ixgbe_check_mac_link_generic;
2210 		break;
2211 	case ixgbe_media_type_backplane:
2212 		mac->ops.fc_autoneg = ixgbe_fc_autoneg_backplane_x550em_a;
2213 		mac->ops.setup_fc = ixgbe_setup_fc_backplane_x550em_a;
2214 		break;
2215 	default:
2216 		break;
2217 	}
2218 }
2219 
2220 /** ixgbe_init_mac_link_ops_X550em - init mac link function pointers
2221  *  @hw: pointer to hardware structure
2222  **/
ixgbe_init_mac_link_ops_X550em(struct ixgbe_hw * hw)2223 static void ixgbe_init_mac_link_ops_X550em(struct ixgbe_hw *hw)
2224 {
2225 	struct ixgbe_mac_info *mac = &hw->mac;
2226 
2227 	mac->ops.setup_fc = ixgbe_setup_fc_x550em;
2228 
2229 	switch (mac->ops.get_media_type(hw)) {
2230 	case ixgbe_media_type_fiber:
2231 		/* CS4227 does not support autoneg, so disable the laser control
2232 		 * functions for SFP+ fiber
2233 		 */
2234 		mac->ops.disable_tx_laser = NULL;
2235 		mac->ops.enable_tx_laser = NULL;
2236 		mac->ops.flap_tx_laser = NULL;
2237 		mac->ops.setup_link = ixgbe_setup_mac_link_multispeed_fiber;
2238 		switch (hw->device_id) {
2239 		case IXGBE_DEV_ID_X550EM_A_SFP_N:
2240 			mac->ops.setup_mac_link = ixgbe_setup_mac_link_sfp_n;
2241 			break;
2242 		case IXGBE_DEV_ID_X550EM_A_SFP:
2243 			mac->ops.setup_mac_link =
2244 						ixgbe_setup_mac_link_sfp_x550a;
2245 			break;
2246 		default:
2247 			mac->ops.setup_mac_link =
2248 						ixgbe_setup_mac_link_sfp_x550em;
2249 			break;
2250 		}
2251 		mac->ops.set_rate_select_speed =
2252 					ixgbe_set_soft_rate_select_speed;
2253 		break;
2254 	case ixgbe_media_type_copper:
2255 		if (hw->device_id == IXGBE_DEV_ID_X550EM_X_1G_T)
2256 			break;
2257 		mac->ops.setup_link = ixgbe_setup_mac_link_t_X550em;
2258 		mac->ops.setup_fc = ixgbe_setup_fc_generic;
2259 		mac->ops.check_link = ixgbe_check_link_t_X550em;
2260 		break;
2261 	case ixgbe_media_type_backplane:
2262 		if (hw->device_id == IXGBE_DEV_ID_X550EM_A_SGMII ||
2263 		    hw->device_id == IXGBE_DEV_ID_X550EM_A_SGMII_L)
2264 			mac->ops.setup_link = ixgbe_setup_sgmii;
2265 		break;
2266 	default:
2267 		break;
2268 	}
2269 
2270 	/* Additional modification for X550em_a devices */
2271 	if (hw->mac.type == ixgbe_mac_x550em_a)
2272 		ixgbe_init_mac_link_ops_X550em_a(hw);
2273 }
2274 
2275 /** ixgbe_setup_sfp_modules_X550em - Setup SFP module
2276  * @hw: pointer to hardware structure
2277  */
ixgbe_setup_sfp_modules_X550em(struct ixgbe_hw * hw)2278 static s32 ixgbe_setup_sfp_modules_X550em(struct ixgbe_hw *hw)
2279 {
2280 	s32 status;
2281 	bool linear;
2282 
2283 	/* Check if SFP module is supported */
2284 	status = ixgbe_supported_sfp_modules_X550em(hw, &linear);
2285 	if (status)
2286 		return status;
2287 
2288 	ixgbe_init_mac_link_ops_X550em(hw);
2289 	hw->phy.ops.reset = NULL;
2290 
2291 	return 0;
2292 }
2293 
2294 /** ixgbe_get_link_capabilities_x550em - Determines link capabilities
2295  * @hw: pointer to hardware structure
2296  * @speed: pointer to link speed
2297  * @autoneg: true when autoneg or autotry is enabled
2298  **/
ixgbe_get_link_capabilities_X550em(struct ixgbe_hw * hw,ixgbe_link_speed * speed,bool * autoneg)2299 static s32 ixgbe_get_link_capabilities_X550em(struct ixgbe_hw *hw,
2300 					      ixgbe_link_speed *speed,
2301 					      bool *autoneg)
2302 {
2303 	if (hw->phy.type == ixgbe_phy_fw) {
2304 		*autoneg = true;
2305 		*speed = hw->phy.speeds_supported;
2306 		return 0;
2307 	}
2308 
2309 	/* SFP */
2310 	if (hw->phy.media_type == ixgbe_media_type_fiber) {
2311 		/* CS4227 SFP must not enable auto-negotiation */
2312 		*autoneg = false;
2313 
2314 		if (hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core0 ||
2315 		    hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core1 ||
2316 		    hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core0 ||
2317 		    hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core1) {
2318 			*speed = IXGBE_LINK_SPEED_1GB_FULL;
2319 			return 0;
2320 		}
2321 
2322 		/* Link capabilities are based on SFP */
2323 		if (hw->phy.multispeed_fiber)
2324 			*speed = IXGBE_LINK_SPEED_10GB_FULL |
2325 				 IXGBE_LINK_SPEED_1GB_FULL;
2326 		else
2327 			*speed = IXGBE_LINK_SPEED_10GB_FULL;
2328 	} else {
2329 		switch (hw->phy.type) {
2330 		case ixgbe_phy_x550em_kx4:
2331 			*speed = IXGBE_LINK_SPEED_1GB_FULL |
2332 				 IXGBE_LINK_SPEED_2_5GB_FULL |
2333 				 IXGBE_LINK_SPEED_10GB_FULL;
2334 			break;
2335 		case ixgbe_phy_x550em_xfi:
2336 			*speed = IXGBE_LINK_SPEED_1GB_FULL |
2337 				 IXGBE_LINK_SPEED_10GB_FULL;
2338 			break;
2339 		case ixgbe_phy_ext_1g_t:
2340 		case ixgbe_phy_sgmii:
2341 			*speed = IXGBE_LINK_SPEED_1GB_FULL;
2342 			break;
2343 		case ixgbe_phy_x550em_kr:
2344 			if (hw->mac.type == ixgbe_mac_x550em_a) {
2345 				/* check different backplane modes */
2346 				if (hw->phy.nw_mng_if_sel &
2347 				    IXGBE_NW_MNG_IF_SEL_PHY_SPEED_2_5G) {
2348 					*speed = IXGBE_LINK_SPEED_2_5GB_FULL;
2349 					break;
2350 				} else if (hw->device_id ==
2351 					   IXGBE_DEV_ID_X550EM_A_KR_L) {
2352 					*speed = IXGBE_LINK_SPEED_1GB_FULL;
2353 					break;
2354 				}
2355 			}
2356 			fallthrough;
2357 		default:
2358 			*speed = IXGBE_LINK_SPEED_10GB_FULL |
2359 				 IXGBE_LINK_SPEED_1GB_FULL;
2360 			break;
2361 		}
2362 		*autoneg = true;
2363 	}
2364 	return 0;
2365 }
2366 
2367 /**
2368  * ixgbe_get_lasi_ext_t_x550em - Determime external Base T PHY interrupt cause
2369  * @hw: pointer to hardware structure
2370  * @lsc: pointer to boolean flag which indicates whether external Base T
2371  *	 PHY interrupt is lsc
2372  *
2373  * Determime if external Base T PHY interrupt cause is high temperature
2374  * failure alarm or link status change.
2375  *
2376  * Return IXGBE_ERR_OVERTEMP if interrupt is high temperature
2377  * failure alarm, else return PHY access status.
2378  **/
ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw * hw,bool * lsc)2379 static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
2380 {
2381 	u32 status;
2382 	u16 reg;
2383 
2384 	*lsc = false;
2385 
2386 	/* Vendor alarm triggered */
2387 	status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_CHIP_STD_INT_FLAG,
2388 				      MDIO_MMD_VEND1,
2389 				      &reg);
2390 
2391 	if (status || !(reg & IXGBE_MDIO_GLOBAL_VEN_ALM_INT_EN))
2392 		return status;
2393 
2394 	/* Vendor Auto-Neg alarm triggered or Global alarm 1 triggered */
2395 	status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_VEN_FLAG,
2396 				      MDIO_MMD_VEND1,
2397 				      &reg);
2398 
2399 	if (status || !(reg & (IXGBE_MDIO_GLOBAL_AN_VEN_ALM_INT_EN |
2400 				IXGBE_MDIO_GLOBAL_ALARM_1_INT)))
2401 		return status;
2402 
2403 	/* Global alarm triggered */
2404 	status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_ALARM_1,
2405 				      MDIO_MMD_VEND1,
2406 				      &reg);
2407 
2408 	if (status)
2409 		return status;
2410 
2411 	/* If high temperature failure, then return over temp error and exit */
2412 	if (reg & IXGBE_MDIO_GLOBAL_ALM_1_HI_TMP_FAIL) {
2413 		/* power down the PHY in case the PHY FW didn't already */
2414 		ixgbe_set_copper_phy_power(hw, false);
2415 		return IXGBE_ERR_OVERTEMP;
2416 	}
2417 	if (reg & IXGBE_MDIO_GLOBAL_ALM_1_DEV_FAULT) {
2418 		/*  device fault alarm triggered */
2419 		status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_FAULT_MSG,
2420 					  MDIO_MMD_VEND1,
2421 					  &reg);
2422 		if (status)
2423 			return status;
2424 
2425 		/* if device fault was due to high temp alarm handle and exit */
2426 		if (reg == IXGBE_MDIO_GLOBAL_FAULT_MSG_HI_TMP) {
2427 			/* power down the PHY in case the PHY FW didn't */
2428 			ixgbe_set_copper_phy_power(hw, false);
2429 			return IXGBE_ERR_OVERTEMP;
2430 		}
2431 	}
2432 
2433 	/* Vendor alarm 2 triggered */
2434 	status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_CHIP_STD_INT_FLAG,
2435 				      MDIO_MMD_AN, &reg);
2436 
2437 	if (status || !(reg & IXGBE_MDIO_GLOBAL_STD_ALM2_INT))
2438 		return status;
2439 
2440 	/* link connect/disconnect event occurred */
2441 	status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_VENDOR_TX_ALARM2,
2442 				      MDIO_MMD_AN, &reg);
2443 
2444 	if (status)
2445 		return status;
2446 
2447 	/* Indicate LSC */
2448 	if (reg & IXGBE_MDIO_AUTO_NEG_VEN_LSC)
2449 		*lsc = true;
2450 
2451 	return 0;
2452 }
2453 
2454 /**
2455  * ixgbe_enable_lasi_ext_t_x550em - Enable external Base T PHY interrupts
2456  * @hw: pointer to hardware structure
2457  *
2458  * Enable link status change and temperature failure alarm for the external
2459  * Base T PHY
2460  *
2461  * Returns PHY access status
2462  **/
ixgbe_enable_lasi_ext_t_x550em(struct ixgbe_hw * hw)2463 static s32 ixgbe_enable_lasi_ext_t_x550em(struct ixgbe_hw *hw)
2464 {
2465 	u32 status;
2466 	u16 reg;
2467 	bool lsc;
2468 
2469 	/* Clear interrupt flags */
2470 	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc);
2471 
2472 	/* Enable link status change alarm */
2473 
2474 	/* Enable the LASI interrupts on X552 devices to receive notifications
2475 	 * of the link configurations of the external PHY and correspondingly
2476 	 * support the configuration of the internal iXFI link, since iXFI does
2477 	 * not support auto-negotiation. This is not required for X553 devices
2478 	 * having KR support, which performs auto-negotiations and which is used
2479 	 * as the internal link to the external PHY. Hence adding a check here
2480 	 * to avoid enabling LASI interrupts for X553 devices.
2481 	 */
2482 	if (hw->mac.type != ixgbe_mac_x550em_a) {
2483 		status = hw->phy.ops.read_reg(hw,
2484 					    IXGBE_MDIO_PMA_TX_VEN_LASI_INT_MASK,
2485 					    MDIO_MMD_AN, &reg);
2486 		if (status)
2487 			return status;
2488 
2489 		reg |= IXGBE_MDIO_PMA_TX_VEN_LASI_INT_EN;
2490 
2491 		status = hw->phy.ops.write_reg(hw,
2492 					    IXGBE_MDIO_PMA_TX_VEN_LASI_INT_MASK,
2493 					    MDIO_MMD_AN, reg);
2494 		if (status)
2495 			return status;
2496 	}
2497 
2498 	/* Enable high temperature failure and global fault alarms */
2499 	status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_INT_MASK,
2500 				      MDIO_MMD_VEND1,
2501 				      &reg);
2502 	if (status)
2503 		return status;
2504 
2505 	reg |= (IXGBE_MDIO_GLOBAL_INT_HI_TEMP_EN |
2506 		IXGBE_MDIO_GLOBAL_INT_DEV_FAULT_EN);
2507 
2508 	status = hw->phy.ops.write_reg(hw, IXGBE_MDIO_GLOBAL_INT_MASK,
2509 				       MDIO_MMD_VEND1,
2510 				       reg);
2511 	if (status)
2512 		return status;
2513 
2514 	/* Enable vendor Auto-Neg alarm and Global Interrupt Mask 1 alarm */
2515 	status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_VEN_MASK,
2516 				      MDIO_MMD_VEND1,
2517 				      &reg);
2518 	if (status)
2519 		return status;
2520 
2521 	reg |= (IXGBE_MDIO_GLOBAL_AN_VEN_ALM_INT_EN |
2522 		IXGBE_MDIO_GLOBAL_ALARM_1_INT);
2523 
2524 	status = hw->phy.ops.write_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_VEN_MASK,
2525 				       MDIO_MMD_VEND1,
2526 				       reg);
2527 	if (status)
2528 		return status;
2529 
2530 	/* Enable chip-wide vendor alarm */
2531 	status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_STD_MASK,
2532 				      MDIO_MMD_VEND1,
2533 				      &reg);
2534 	if (status)
2535 		return status;
2536 
2537 	reg |= IXGBE_MDIO_GLOBAL_VEN_ALM_INT_EN;
2538 
2539 	status = hw->phy.ops.write_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_STD_MASK,
2540 				       MDIO_MMD_VEND1,
2541 				       reg);
2542 
2543 	return status;
2544 }
2545 
2546 /**
2547  * ixgbe_handle_lasi_ext_t_x550em - Handle external Base T PHY interrupt
2548  * @hw: pointer to hardware structure
2549  *
2550  * Handle external Base T PHY interrupt. If high temperature
2551  * failure alarm then return error, else if link status change
2552  * then setup internal/external PHY link
2553  *
2554  * Return IXGBE_ERR_OVERTEMP if interrupt is high temperature
2555  * failure alarm, else return PHY access status.
2556  **/
ixgbe_handle_lasi_ext_t_x550em(struct ixgbe_hw * hw)2557 static s32 ixgbe_handle_lasi_ext_t_x550em(struct ixgbe_hw *hw)
2558 {
2559 	struct ixgbe_phy_info *phy = &hw->phy;
2560 	bool lsc;
2561 	u32 status;
2562 
2563 	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc);
2564 	if (status)
2565 		return status;
2566 
2567 	if (lsc && phy->ops.setup_internal_link)
2568 		return phy->ops.setup_internal_link(hw);
2569 
2570 	return 0;
2571 }
2572 
2573 /**
2574  * ixgbe_setup_kr_speed_x550em - Configure the KR PHY for link speed.
2575  * @hw: pointer to hardware structure
2576  * @speed: link speed
2577  *
2578  * Configures the integrated KR PHY.
2579  **/
ixgbe_setup_kr_speed_x550em(struct ixgbe_hw * hw,ixgbe_link_speed speed)2580 static s32 ixgbe_setup_kr_speed_x550em(struct ixgbe_hw *hw,
2581 				       ixgbe_link_speed speed)
2582 {
2583 	s32 status;
2584 	u32 reg_val;
2585 
2586 	status = hw->mac.ops.read_iosf_sb_reg(hw,
2587 					IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2588 					IXGBE_SB_IOSF_TARGET_KR_PHY, &reg_val);
2589 	if (status)
2590 		return status;
2591 
2592 	reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_ENABLE;
2593 	reg_val &= ~(IXGBE_KRM_LINK_CTRL_1_TETH_AN_CAP_KR |
2594 		     IXGBE_KRM_LINK_CTRL_1_TETH_AN_CAP_KX);
2595 
2596 	/* Advertise 10G support. */
2597 	if (speed & IXGBE_LINK_SPEED_10GB_FULL)
2598 		reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_CAP_KR;
2599 
2600 	/* Advertise 1G support. */
2601 	if (speed & IXGBE_LINK_SPEED_1GB_FULL)
2602 		reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_CAP_KX;
2603 
2604 	status = hw->mac.ops.write_iosf_sb_reg(hw,
2605 					IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2606 					IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
2607 
2608 	if (hw->mac.type == ixgbe_mac_x550em_a) {
2609 		/* Set lane mode  to KR auto negotiation */
2610 		status = hw->mac.ops.read_iosf_sb_reg(hw,
2611 				IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2612 				IXGBE_SB_IOSF_TARGET_KR_PHY, &reg_val);
2613 
2614 		if (status)
2615 			return status;
2616 
2617 		reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_MASK;
2618 		reg_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_AN;
2619 		reg_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_AN_EN;
2620 		reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_AN37_EN;
2621 		reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SGMII_EN;
2622 
2623 		status = hw->mac.ops.write_iosf_sb_reg(hw,
2624 				IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2625 				IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
2626 	}
2627 
2628 	return ixgbe_restart_an_internal_phy_x550em(hw);
2629 }
2630 
2631 /**
2632  * ixgbe_setup_kr_x550em - Configure the KR PHY
2633  * @hw: pointer to hardware structure
2634  **/
ixgbe_setup_kr_x550em(struct ixgbe_hw * hw)2635 static s32 ixgbe_setup_kr_x550em(struct ixgbe_hw *hw)
2636 {
2637 	/* leave link alone for 2.5G */
2638 	if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_2_5GB_FULL)
2639 		return 0;
2640 
2641 	if (ixgbe_check_reset_blocked(hw))
2642 		return 0;
2643 
2644 	return ixgbe_setup_kr_speed_x550em(hw, hw->phy.autoneg_advertised);
2645 }
2646 
2647 /** ixgbe_ext_phy_t_x550em_get_link - Get ext phy link status
2648  *  @hw: address of hardware structure
2649  *  @link_up: address of boolean to indicate link status
2650  *
2651  *  Returns error code if unable to get link status.
2652  **/
ixgbe_ext_phy_t_x550em_get_link(struct ixgbe_hw * hw,bool * link_up)2653 static s32 ixgbe_ext_phy_t_x550em_get_link(struct ixgbe_hw *hw, bool *link_up)
2654 {
2655 	u32 ret;
2656 	u16 autoneg_status;
2657 
2658 	*link_up = false;
2659 
2660 	/* read this twice back to back to indicate current status */
2661 	ret = hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN,
2662 				   &autoneg_status);
2663 	if (ret)
2664 		return ret;
2665 
2666 	ret = hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN,
2667 				   &autoneg_status);
2668 	if (ret)
2669 		return ret;
2670 
2671 	*link_up = !!(autoneg_status & IXGBE_MDIO_AUTO_NEG_LINK_STATUS);
2672 
2673 	return 0;
2674 }
2675 
2676 /** ixgbe_setup_internal_phy_t_x550em - Configure KR PHY to X557 link
2677  *  @hw: point to hardware structure
2678  *
2679  *  Configures the link between the integrated KR PHY and the external X557 PHY
2680  *  The driver will call this function when it gets a link status change
2681  *  interrupt from the X557 PHY. This function configures the link speed
2682  *  between the PHYs to match the link speed of the BASE-T link.
2683  *
2684  * A return of a non-zero value indicates an error, and the base driver should
2685  * not report link up.
2686  **/
ixgbe_setup_internal_phy_t_x550em(struct ixgbe_hw * hw)2687 static s32 ixgbe_setup_internal_phy_t_x550em(struct ixgbe_hw *hw)
2688 {
2689 	ixgbe_link_speed force_speed;
2690 	bool link_up;
2691 	u32 status;
2692 	u16 speed;
2693 
2694 	if (hw->mac.ops.get_media_type(hw) != ixgbe_media_type_copper)
2695 		return IXGBE_ERR_CONFIG;
2696 
2697 	if (!(hw->mac.type == ixgbe_mac_X550EM_x &&
2698 	      !(hw->phy.nw_mng_if_sel & IXGBE_NW_MNG_IF_SEL_INT_PHY_MODE))) {
2699 		speed = IXGBE_LINK_SPEED_10GB_FULL |
2700 			IXGBE_LINK_SPEED_1GB_FULL;
2701 		return ixgbe_setup_kr_speed_x550em(hw, speed);
2702 	}
2703 
2704 	/* If link is not up, then there is no setup necessary so return  */
2705 	status = ixgbe_ext_phy_t_x550em_get_link(hw, &link_up);
2706 	if (status)
2707 		return status;
2708 
2709 	if (!link_up)
2710 		return 0;
2711 
2712 	status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_VENDOR_STAT,
2713 				      MDIO_MMD_AN,
2714 				      &speed);
2715 	if (status)
2716 		return status;
2717 
2718 	/* If link is not still up, then no setup is necessary so return */
2719 	status = ixgbe_ext_phy_t_x550em_get_link(hw, &link_up);
2720 	if (status)
2721 		return status;
2722 
2723 	if (!link_up)
2724 		return 0;
2725 
2726 	/* clear everything but the speed and duplex bits */
2727 	speed &= IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_MASK;
2728 
2729 	switch (speed) {
2730 	case IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_10GB_FULL:
2731 		force_speed = IXGBE_LINK_SPEED_10GB_FULL;
2732 		break;
2733 	case IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_1GB_FULL:
2734 		force_speed = IXGBE_LINK_SPEED_1GB_FULL;
2735 		break;
2736 	default:
2737 		/* Internal PHY does not support anything else */
2738 		return IXGBE_ERR_INVALID_LINK_SETTINGS;
2739 	}
2740 
2741 	return ixgbe_setup_ixfi_x550em(hw, &force_speed);
2742 }
2743 
2744 /** ixgbe_reset_phy_t_X550em - Performs X557 PHY reset and enables LASI
2745  *  @hw: pointer to hardware structure
2746  **/
ixgbe_reset_phy_t_X550em(struct ixgbe_hw * hw)2747 static s32 ixgbe_reset_phy_t_X550em(struct ixgbe_hw *hw)
2748 {
2749 	s32 status;
2750 
2751 	status = ixgbe_reset_phy_generic(hw);
2752 
2753 	if (status)
2754 		return status;
2755 
2756 	/* Configure Link Status Alarm and Temperature Threshold interrupts */
2757 	return ixgbe_enable_lasi_ext_t_x550em(hw);
2758 }
2759 
2760 /**
2761  *  ixgbe_led_on_t_x550em - Turns on the software controllable LEDs.
2762  *  @hw: pointer to hardware structure
2763  *  @led_idx: led number to turn on
2764  **/
ixgbe_led_on_t_x550em(struct ixgbe_hw * hw,u32 led_idx)2765 static s32 ixgbe_led_on_t_x550em(struct ixgbe_hw *hw, u32 led_idx)
2766 {
2767 	u16 phy_data;
2768 
2769 	if (led_idx >= IXGBE_X557_MAX_LED_INDEX)
2770 		return IXGBE_ERR_PARAM;
2771 
2772 	/* To turn on the LED, set mode to ON. */
2773 	hw->phy.ops.read_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx,
2774 			     MDIO_MMD_VEND1, &phy_data);
2775 	phy_data |= IXGBE_X557_LED_MANUAL_SET_MASK;
2776 	hw->phy.ops.write_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx,
2777 			      MDIO_MMD_VEND1, phy_data);
2778 
2779 	return 0;
2780 }
2781 
2782 /**
2783  *  ixgbe_led_off_t_x550em - Turns off the software controllable LEDs.
2784  *  @hw: pointer to hardware structure
2785  *  @led_idx: led number to turn off
2786  **/
ixgbe_led_off_t_x550em(struct ixgbe_hw * hw,u32 led_idx)2787 static s32 ixgbe_led_off_t_x550em(struct ixgbe_hw *hw, u32 led_idx)
2788 {
2789 	u16 phy_data;
2790 
2791 	if (led_idx >= IXGBE_X557_MAX_LED_INDEX)
2792 		return IXGBE_ERR_PARAM;
2793 
2794 	/* To turn on the LED, set mode to ON. */
2795 	hw->phy.ops.read_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx,
2796 			     MDIO_MMD_VEND1, &phy_data);
2797 	phy_data &= ~IXGBE_X557_LED_MANUAL_SET_MASK;
2798 	hw->phy.ops.write_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx,
2799 			      MDIO_MMD_VEND1, phy_data);
2800 
2801 	return 0;
2802 }
2803 
2804 /**
2805  *  ixgbe_set_fw_drv_ver_x550 - Sends driver version to firmware
2806  *  @hw: pointer to the HW structure
2807  *  @maj: driver version major number
2808  *  @min: driver version minor number
2809  *  @build: driver version build number
2810  *  @sub: driver version sub build number
2811  *  @len: length of driver_ver string
2812  *  @driver_ver: driver string
2813  *
2814  *  Sends driver version number to firmware through the manageability
2815  *  block.  On success return 0
2816  *  else returns IXGBE_ERR_SWFW_SYNC when encountering an error acquiring
2817  *  semaphore or IXGBE_ERR_HOST_INTERFACE_COMMAND when command fails.
2818  **/
ixgbe_set_fw_drv_ver_x550(struct ixgbe_hw * hw,u8 maj,u8 min,u8 build,u8 sub,u16 len,const char * driver_ver)2819 static s32 ixgbe_set_fw_drv_ver_x550(struct ixgbe_hw *hw, u8 maj, u8 min,
2820 				     u8 build, u8 sub, u16 len,
2821 				     const char *driver_ver)
2822 {
2823 	struct ixgbe_hic_drv_info2 fw_cmd;
2824 	s32 ret_val;
2825 	int i;
2826 
2827 	if (!len || !driver_ver || (len > sizeof(fw_cmd.driver_string)))
2828 		return IXGBE_ERR_INVALID_ARGUMENT;
2829 
2830 	fw_cmd.hdr.cmd = FW_CEM_CMD_DRIVER_INFO;
2831 	fw_cmd.hdr.buf_len = FW_CEM_CMD_DRIVER_INFO_LEN + len;
2832 	fw_cmd.hdr.cmd_or_resp.cmd_resv = FW_CEM_CMD_RESERVED;
2833 	fw_cmd.port_num = (u8)hw->bus.func;
2834 	fw_cmd.ver_maj = maj;
2835 	fw_cmd.ver_min = min;
2836 	fw_cmd.ver_build = build;
2837 	fw_cmd.ver_sub = sub;
2838 	fw_cmd.hdr.checksum = 0;
2839 	memcpy(fw_cmd.driver_string, driver_ver, len);
2840 	fw_cmd.hdr.checksum = ixgbe_calculate_checksum((u8 *)&fw_cmd,
2841 			      (FW_CEM_HDR_LEN + fw_cmd.hdr.buf_len));
2842 
2843 	for (i = 0; i <= FW_CEM_MAX_RETRIES; i++) {
2844 		ret_val = ixgbe_host_interface_command(hw, (u32 *)&fw_cmd,
2845 						       sizeof(fw_cmd),
2846 						       IXGBE_HI_COMMAND_TIMEOUT,
2847 						       true);
2848 		if (ret_val)
2849 			continue;
2850 
2851 		if (fw_cmd.hdr.cmd_or_resp.ret_status !=
2852 		    FW_CEM_RESP_STATUS_SUCCESS)
2853 			return IXGBE_ERR_HOST_INTERFACE_COMMAND;
2854 		return 0;
2855 	}
2856 
2857 	return ret_val;
2858 }
2859 
2860 /** ixgbe_get_lcd_x550em - Determine lowest common denominator
2861  *  @hw: pointer to hardware structure
2862  *  @lcd_speed: pointer to lowest common link speed
2863  *
2864  *  Determine lowest common link speed with link partner.
2865  **/
ixgbe_get_lcd_t_x550em(struct ixgbe_hw * hw,ixgbe_link_speed * lcd_speed)2866 static s32 ixgbe_get_lcd_t_x550em(struct ixgbe_hw *hw,
2867 				  ixgbe_link_speed *lcd_speed)
2868 {
2869 	u16 an_lp_status;
2870 	s32 status;
2871 	u16 word = hw->eeprom.ctrl_word_3;
2872 
2873 	*lcd_speed = IXGBE_LINK_SPEED_UNKNOWN;
2874 
2875 	status = hw->phy.ops.read_reg(hw, IXGBE_AUTO_NEG_LP_STATUS,
2876 				      MDIO_MMD_AN,
2877 				      &an_lp_status);
2878 	if (status)
2879 		return status;
2880 
2881 	/* If link partner advertised 1G, return 1G */
2882 	if (an_lp_status & IXGBE_AUTO_NEG_LP_1000BASE_CAP) {
2883 		*lcd_speed = IXGBE_LINK_SPEED_1GB_FULL;
2884 		return status;
2885 	}
2886 
2887 	/* If 10G disabled for LPLU via NVM D10GMP, then return no valid LCD */
2888 	if ((hw->bus.lan_id && (word & NVM_INIT_CTRL_3_D10GMP_PORT1)) ||
2889 	    (word & NVM_INIT_CTRL_3_D10GMP_PORT0))
2890 		return status;
2891 
2892 	/* Link partner not capable of lower speeds, return 10G */
2893 	*lcd_speed = IXGBE_LINK_SPEED_10GB_FULL;
2894 	return status;
2895 }
2896 
2897 /**
2898  * ixgbe_setup_fc_x550em - Set up flow control
2899  * @hw: pointer to hardware structure
2900  */
ixgbe_setup_fc_x550em(struct ixgbe_hw * hw)2901 static s32 ixgbe_setup_fc_x550em(struct ixgbe_hw *hw)
2902 {
2903 	bool pause, asm_dir;
2904 	u32 reg_val;
2905 	s32 rc = 0;
2906 
2907 	/* Validate the requested mode */
2908 	if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
2909 		hw_err(hw, "ixgbe_fc_rx_pause not valid in strict IEEE mode\n");
2910 		return IXGBE_ERR_INVALID_LINK_SETTINGS;
2911 	}
2912 
2913 	/* 10gig parts do not have a word in the EEPROM to determine the
2914 	 * default flow control setting, so we explicitly set it to full.
2915 	 */
2916 	if (hw->fc.requested_mode == ixgbe_fc_default)
2917 		hw->fc.requested_mode = ixgbe_fc_full;
2918 
2919 	/* Determine PAUSE and ASM_DIR bits. */
2920 	switch (hw->fc.requested_mode) {
2921 	case ixgbe_fc_none:
2922 		pause = false;
2923 		asm_dir = false;
2924 		break;
2925 	case ixgbe_fc_tx_pause:
2926 		pause = false;
2927 		asm_dir = true;
2928 		break;
2929 	case ixgbe_fc_rx_pause:
2930 		/* Rx Flow control is enabled and Tx Flow control is
2931 		 * disabled by software override. Since there really
2932 		 * isn't a way to advertise that we are capable of RX
2933 		 * Pause ONLY, we will advertise that we support both
2934 		 * symmetric and asymmetric Rx PAUSE, as such we fall
2935 		 * through to the fc_full statement.  Later, we will
2936 		 * disable the adapter's ability to send PAUSE frames.
2937 		 */
2938 		fallthrough;
2939 	case ixgbe_fc_full:
2940 		pause = true;
2941 		asm_dir = true;
2942 		break;
2943 	default:
2944 		hw_err(hw, "Flow control param set incorrectly\n");
2945 		return IXGBE_ERR_CONFIG;
2946 	}
2947 
2948 	switch (hw->device_id) {
2949 	case IXGBE_DEV_ID_X550EM_X_KR:
2950 	case IXGBE_DEV_ID_X550EM_A_KR:
2951 	case IXGBE_DEV_ID_X550EM_A_KR_L:
2952 		rc = hw->mac.ops.read_iosf_sb_reg(hw,
2953 					    IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
2954 					    IXGBE_SB_IOSF_TARGET_KR_PHY,
2955 					    &reg_val);
2956 		if (rc)
2957 			return rc;
2958 
2959 		reg_val &= ~(IXGBE_KRM_AN_CNTL_1_SYM_PAUSE |
2960 			     IXGBE_KRM_AN_CNTL_1_ASM_PAUSE);
2961 		if (pause)
2962 			reg_val |= IXGBE_KRM_AN_CNTL_1_SYM_PAUSE;
2963 		if (asm_dir)
2964 			reg_val |= IXGBE_KRM_AN_CNTL_1_ASM_PAUSE;
2965 		rc = hw->mac.ops.write_iosf_sb_reg(hw,
2966 					    IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
2967 					    IXGBE_SB_IOSF_TARGET_KR_PHY,
2968 					    reg_val);
2969 
2970 		/* This device does not fully support AN. */
2971 		hw->fc.disable_fc_autoneg = true;
2972 		break;
2973 	case IXGBE_DEV_ID_X550EM_X_XFI:
2974 		hw->fc.disable_fc_autoneg = true;
2975 		break;
2976 	default:
2977 		break;
2978 	}
2979 	return rc;
2980 }
2981 
2982 /**
2983  *  ixgbe_fc_autoneg_backplane_x550em_a - Enable flow control IEEE clause 37
2984  *  @hw: pointer to hardware structure
2985  **/
ixgbe_fc_autoneg_backplane_x550em_a(struct ixgbe_hw * hw)2986 static void ixgbe_fc_autoneg_backplane_x550em_a(struct ixgbe_hw *hw)
2987 {
2988 	u32 link_s1, lp_an_page_low, an_cntl_1;
2989 	s32 status = IXGBE_ERR_FC_NOT_NEGOTIATED;
2990 	ixgbe_link_speed speed;
2991 	bool link_up;
2992 
2993 	/* AN should have completed when the cable was plugged in.
2994 	 * Look for reasons to bail out.  Bail out if:
2995 	 * - FC autoneg is disabled, or if
2996 	 * - link is not up.
2997 	 */
2998 	if (hw->fc.disable_fc_autoneg) {
2999 		hw_err(hw, "Flow control autoneg is disabled");
3000 		goto out;
3001 	}
3002 
3003 	hw->mac.ops.check_link(hw, &speed, &link_up, false);
3004 	if (!link_up) {
3005 		hw_err(hw, "The link is down");
3006 		goto out;
3007 	}
3008 
3009 	/* Check at auto-negotiation has completed */
3010 	status = hw->mac.ops.read_iosf_sb_reg(hw,
3011 					IXGBE_KRM_LINK_S1(hw->bus.lan_id),
3012 					IXGBE_SB_IOSF_TARGET_KR_PHY, &link_s1);
3013 
3014 	if (status || (link_s1 & IXGBE_KRM_LINK_S1_MAC_AN_COMPLETE) == 0) {
3015 		hw_dbg(hw, "Auto-Negotiation did not complete\n");
3016 		status = IXGBE_ERR_FC_NOT_NEGOTIATED;
3017 		goto out;
3018 	}
3019 
3020 	/* Read the 10g AN autoc and LP ability registers and resolve
3021 	 * local flow control settings accordingly
3022 	 */
3023 	status = hw->mac.ops.read_iosf_sb_reg(hw,
3024 				IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
3025 				IXGBE_SB_IOSF_TARGET_KR_PHY, &an_cntl_1);
3026 
3027 	if (status) {
3028 		hw_dbg(hw, "Auto-Negotiation did not complete\n");
3029 		goto out;
3030 	}
3031 
3032 	status = hw->mac.ops.read_iosf_sb_reg(hw,
3033 				IXGBE_KRM_LP_BASE_PAGE_HIGH(hw->bus.lan_id),
3034 				IXGBE_SB_IOSF_TARGET_KR_PHY, &lp_an_page_low);
3035 
3036 	if (status) {
3037 		hw_dbg(hw, "Auto-Negotiation did not complete\n");
3038 		goto out;
3039 	}
3040 
3041 	status = ixgbe_negotiate_fc(hw, an_cntl_1, lp_an_page_low,
3042 				    IXGBE_KRM_AN_CNTL_1_SYM_PAUSE,
3043 				    IXGBE_KRM_AN_CNTL_1_ASM_PAUSE,
3044 				    IXGBE_KRM_LP_BASE_PAGE_HIGH_SYM_PAUSE,
3045 				    IXGBE_KRM_LP_BASE_PAGE_HIGH_ASM_PAUSE);
3046 
3047 out:
3048 	if (!status) {
3049 		hw->fc.fc_was_autonegged = true;
3050 	} else {
3051 		hw->fc.fc_was_autonegged = false;
3052 		hw->fc.current_mode = hw->fc.requested_mode;
3053 	}
3054 }
3055 
3056 /**
3057  *  ixgbe_fc_autoneg_fiber_x550em_a - passthrough FC settings
3058  *  @hw: pointer to hardware structure
3059  **/
ixgbe_fc_autoneg_fiber_x550em_a(struct ixgbe_hw * hw)3060 static void ixgbe_fc_autoneg_fiber_x550em_a(struct ixgbe_hw *hw)
3061 {
3062 	hw->fc.fc_was_autonegged = false;
3063 	hw->fc.current_mode = hw->fc.requested_mode;
3064 }
3065 
3066 /** ixgbe_enter_lplu_x550em - Transition to low power states
3067  *  @hw: pointer to hardware structure
3068  *
3069  *  Configures Low Power Link Up on transition to low power states
3070  *  (from D0 to non-D0). Link is required to enter LPLU so avoid resetting
3071  *  the X557 PHY immediately prior to entering LPLU.
3072  **/
ixgbe_enter_lplu_t_x550em(struct ixgbe_hw * hw)3073 static s32 ixgbe_enter_lplu_t_x550em(struct ixgbe_hw *hw)
3074 {
3075 	u16 an_10g_cntl_reg, autoneg_reg, speed;
3076 	s32 status;
3077 	ixgbe_link_speed lcd_speed;
3078 	u32 save_autoneg;
3079 	bool link_up;
3080 
3081 	/* If blocked by MNG FW, then don't restart AN */
3082 	if (ixgbe_check_reset_blocked(hw))
3083 		return 0;
3084 
3085 	status = ixgbe_ext_phy_t_x550em_get_link(hw, &link_up);
3086 	if (status)
3087 		return status;
3088 
3089 	status = hw->eeprom.ops.read(hw, NVM_INIT_CTRL_3,
3090 				     &hw->eeprom.ctrl_word_3);
3091 	if (status)
3092 		return status;
3093 
3094 	/* If link is down, LPLU disabled in NVM, WoL disabled, or
3095 	 * manageability disabled, then force link down by entering
3096 	 * low power mode.
3097 	 */
3098 	if (!link_up || !(hw->eeprom.ctrl_word_3 & NVM_INIT_CTRL_3_LPLU) ||
3099 	    !(hw->wol_enabled || ixgbe_mng_present(hw)))
3100 		return ixgbe_set_copper_phy_power(hw, false);
3101 
3102 	/* Determine LCD */
3103 	status = ixgbe_get_lcd_t_x550em(hw, &lcd_speed);
3104 	if (status)
3105 		return status;
3106 
3107 	/* If no valid LCD link speed, then force link down and exit. */
3108 	if (lcd_speed == IXGBE_LINK_SPEED_UNKNOWN)
3109 		return ixgbe_set_copper_phy_power(hw, false);
3110 
3111 	status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_VENDOR_STAT,
3112 				      MDIO_MMD_AN,
3113 				      &speed);
3114 	if (status)
3115 		return status;
3116 
3117 	/* If no link now, speed is invalid so take link down */
3118 	status = ixgbe_ext_phy_t_x550em_get_link(hw, &link_up);
3119 	if (status)
3120 		return ixgbe_set_copper_phy_power(hw, false);
3121 
3122 	/* clear everything but the speed bits */
3123 	speed &= IXGBE_MDIO_AUTO_NEG_VEN_STAT_SPEED_MASK;
3124 
3125 	/* If current speed is already LCD, then exit. */
3126 	if (((speed == IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_1GB) &&
3127 	     (lcd_speed == IXGBE_LINK_SPEED_1GB_FULL)) ||
3128 	    ((speed == IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_10GB) &&
3129 	     (lcd_speed == IXGBE_LINK_SPEED_10GB_FULL)))
3130 		return status;
3131 
3132 	/* Clear AN completed indication */
3133 	status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_VENDOR_TX_ALARM,
3134 				      MDIO_MMD_AN,
3135 				      &autoneg_reg);
3136 	if (status)
3137 		return status;
3138 
3139 	status = hw->phy.ops.read_reg(hw, MDIO_AN_10GBT_CTRL,
3140 				      MDIO_MMD_AN,
3141 				      &an_10g_cntl_reg);
3142 	if (status)
3143 		return status;
3144 
3145 	status = hw->phy.ops.read_reg(hw,
3146 				      IXGBE_MII_AUTONEG_VENDOR_PROVISION_1_REG,
3147 				      MDIO_MMD_AN,
3148 				      &autoneg_reg);
3149 	if (status)
3150 		return status;
3151 
3152 	save_autoneg = hw->phy.autoneg_advertised;
3153 
3154 	/* Setup link at least common link speed */
3155 	status = hw->mac.ops.setup_link(hw, lcd_speed, false);
3156 
3157 	/* restore autoneg from before setting lplu speed */
3158 	hw->phy.autoneg_advertised = save_autoneg;
3159 
3160 	return status;
3161 }
3162 
3163 /**
3164  * ixgbe_reset_phy_fw - Reset firmware-controlled PHYs
3165  * @hw: pointer to hardware structure
3166  */
ixgbe_reset_phy_fw(struct ixgbe_hw * hw)3167 static s32 ixgbe_reset_phy_fw(struct ixgbe_hw *hw)
3168 {
3169 	u32 store[FW_PHY_ACT_DATA_COUNT] = { 0 };
3170 	s32 rc;
3171 
3172 	if (hw->phy.reset_disable || ixgbe_check_reset_blocked(hw))
3173 		return 0;
3174 
3175 	rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_PHY_SW_RESET, &store);
3176 	if (rc)
3177 		return rc;
3178 	memset(store, 0, sizeof(store));
3179 
3180 	rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_INIT_PHY, &store);
3181 	if (rc)
3182 		return rc;
3183 
3184 	return ixgbe_setup_fw_link(hw);
3185 }
3186 
3187 /**
3188  * ixgbe_check_overtemp_fw - Check firmware-controlled PHYs for overtemp
3189  * @hw: pointer to hardware structure
3190  */
ixgbe_check_overtemp_fw(struct ixgbe_hw * hw)3191 static s32 ixgbe_check_overtemp_fw(struct ixgbe_hw *hw)
3192 {
3193 	u32 store[FW_PHY_ACT_DATA_COUNT] = { 0 };
3194 	s32 rc;
3195 
3196 	rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_GET_LINK_INFO, &store);
3197 	if (rc)
3198 		return rc;
3199 
3200 	if (store[0] & FW_PHY_ACT_GET_LINK_INFO_TEMP) {
3201 		ixgbe_shutdown_fw_phy(hw);
3202 		return IXGBE_ERR_OVERTEMP;
3203 	}
3204 	return 0;
3205 }
3206 
3207 /**
3208  * ixgbe_read_mng_if_sel_x550em - Read NW_MNG_IF_SEL register
3209  * @hw: pointer to hardware structure
3210  *
3211  * Read NW_MNG_IF_SEL register and save field values.
3212  */
ixgbe_read_mng_if_sel_x550em(struct ixgbe_hw * hw)3213 static void ixgbe_read_mng_if_sel_x550em(struct ixgbe_hw *hw)
3214 {
3215 	/* Save NW management interface connected on board. This is used
3216 	 * to determine internal PHY mode.
3217 	 */
3218 	hw->phy.nw_mng_if_sel = IXGBE_READ_REG(hw, IXGBE_NW_MNG_IF_SEL);
3219 
3220 	/* If X552 (X550EM_a) and MDIO is connected to external PHY, then set
3221 	 * PHY address. This register field was has only been used for X552.
3222 	 */
3223 	if (hw->mac.type == ixgbe_mac_x550em_a &&
3224 	    hw->phy.nw_mng_if_sel & IXGBE_NW_MNG_IF_SEL_MDIO_ACT) {
3225 		hw->phy.mdio.prtad = (hw->phy.nw_mng_if_sel &
3226 				      IXGBE_NW_MNG_IF_SEL_MDIO_PHY_ADD) >>
3227 				     IXGBE_NW_MNG_IF_SEL_MDIO_PHY_ADD_SHIFT;
3228 	}
3229 }
3230 
3231 /** ixgbe_init_phy_ops_X550em - PHY/SFP specific init
3232  *  @hw: pointer to hardware structure
3233  *
3234  *  Initialize any function pointers that were not able to be
3235  *  set during init_shared_code because the PHY/SFP type was
3236  *  not known.  Perform the SFP init if necessary.
3237  **/
ixgbe_init_phy_ops_X550em(struct ixgbe_hw * hw)3238 static s32 ixgbe_init_phy_ops_X550em(struct ixgbe_hw *hw)
3239 {
3240 	struct ixgbe_phy_info *phy = &hw->phy;
3241 	s32 ret_val;
3242 
3243 	hw->mac.ops.set_lan_id(hw);
3244 
3245 	ixgbe_read_mng_if_sel_x550em(hw);
3246 
3247 	if (hw->mac.ops.get_media_type(hw) == ixgbe_media_type_fiber) {
3248 		phy->phy_semaphore_mask = IXGBE_GSSR_SHARED_I2C_SM;
3249 		ixgbe_setup_mux_ctl(hw);
3250 	}
3251 
3252 	/* Identify the PHY or SFP module */
3253 	ret_val = phy->ops.identify(hw);
3254 	if (ret_val == IXGBE_ERR_SFP_NOT_SUPPORTED ||
3255 	    ret_val == IXGBE_ERR_PHY_ADDR_INVALID)
3256 		return ret_val;
3257 
3258 	/* Setup function pointers based on detected hardware */
3259 	ixgbe_init_mac_link_ops_X550em(hw);
3260 	if (phy->sfp_type != ixgbe_sfp_type_unknown)
3261 		phy->ops.reset = NULL;
3262 
3263 	/* Set functions pointers based on phy type */
3264 	switch (hw->phy.type) {
3265 	case ixgbe_phy_x550em_kx4:
3266 		phy->ops.setup_link = NULL;
3267 		phy->ops.read_reg = ixgbe_read_phy_reg_x550em;
3268 		phy->ops.write_reg = ixgbe_write_phy_reg_x550em;
3269 		break;
3270 	case ixgbe_phy_x550em_kr:
3271 		phy->ops.setup_link = ixgbe_setup_kr_x550em;
3272 		phy->ops.read_reg = ixgbe_read_phy_reg_x550em;
3273 		phy->ops.write_reg = ixgbe_write_phy_reg_x550em;
3274 		break;
3275 	case ixgbe_phy_x550em_xfi:
3276 		/* link is managed by HW */
3277 		phy->ops.setup_link = NULL;
3278 		phy->ops.read_reg = ixgbe_read_phy_reg_x550em;
3279 		phy->ops.write_reg = ixgbe_write_phy_reg_x550em;
3280 		break;
3281 	case ixgbe_phy_x550em_ext_t:
3282 		/* Save NW management interface connected on board. This is used
3283 		 * to determine internal PHY mode
3284 		 */
3285 		phy->nw_mng_if_sel = IXGBE_READ_REG(hw, IXGBE_NW_MNG_IF_SEL);
3286 
3287 		/* If internal link mode is XFI, then setup iXFI internal link,
3288 		 * else setup KR now.
3289 		 */
3290 		phy->ops.setup_internal_link =
3291 					      ixgbe_setup_internal_phy_t_x550em;
3292 
3293 		/* setup SW LPLU only for first revision */
3294 		if (hw->mac.type == ixgbe_mac_X550EM_x &&
3295 		    !(IXGBE_READ_REG(hw, IXGBE_FUSES0_GROUP(0)) &
3296 		      IXGBE_FUSES0_REV_MASK))
3297 			phy->ops.enter_lplu = ixgbe_enter_lplu_t_x550em;
3298 
3299 		phy->ops.handle_lasi = ixgbe_handle_lasi_ext_t_x550em;
3300 		phy->ops.reset = ixgbe_reset_phy_t_X550em;
3301 		break;
3302 	case ixgbe_phy_sgmii:
3303 		phy->ops.setup_link = NULL;
3304 		break;
3305 	case ixgbe_phy_fw:
3306 		phy->ops.setup_link = ixgbe_setup_fw_link;
3307 		phy->ops.reset = ixgbe_reset_phy_fw;
3308 		break;
3309 	case ixgbe_phy_ext_1g_t:
3310 		phy->ops.setup_link = NULL;
3311 		phy->ops.read_reg = NULL;
3312 		phy->ops.write_reg = NULL;
3313 		phy->ops.reset = NULL;
3314 		break;
3315 	default:
3316 		break;
3317 	}
3318 
3319 	return ret_val;
3320 }
3321 
3322 /** ixgbe_get_media_type_X550em - Get media type
3323  *  @hw: pointer to hardware structure
3324  *
3325  *  Returns the media type (fiber, copper, backplane)
3326  *
3327  */
ixgbe_get_media_type_X550em(struct ixgbe_hw * hw)3328 static enum ixgbe_media_type ixgbe_get_media_type_X550em(struct ixgbe_hw *hw)
3329 {
3330 	enum ixgbe_media_type media_type;
3331 
3332 	/* Detect if there is a copper PHY attached. */
3333 	switch (hw->device_id) {
3334 	case IXGBE_DEV_ID_X550EM_A_SGMII:
3335 	case IXGBE_DEV_ID_X550EM_A_SGMII_L:
3336 		hw->phy.type = ixgbe_phy_sgmii;
3337 		fallthrough;
3338 	case IXGBE_DEV_ID_X550EM_X_KR:
3339 	case IXGBE_DEV_ID_X550EM_X_KX4:
3340 	case IXGBE_DEV_ID_X550EM_X_XFI:
3341 	case IXGBE_DEV_ID_X550EM_A_KR:
3342 	case IXGBE_DEV_ID_X550EM_A_KR_L:
3343 		media_type = ixgbe_media_type_backplane;
3344 		break;
3345 	case IXGBE_DEV_ID_X550EM_X_SFP:
3346 	case IXGBE_DEV_ID_X550EM_A_SFP:
3347 	case IXGBE_DEV_ID_X550EM_A_SFP_N:
3348 		media_type = ixgbe_media_type_fiber;
3349 		break;
3350 	case IXGBE_DEV_ID_X550EM_X_1G_T:
3351 	case IXGBE_DEV_ID_X550EM_X_10G_T:
3352 	case IXGBE_DEV_ID_X550EM_A_10G_T:
3353 	case IXGBE_DEV_ID_X550EM_A_1G_T:
3354 	case IXGBE_DEV_ID_X550EM_A_1G_T_L:
3355 		media_type = ixgbe_media_type_copper;
3356 		break;
3357 	default:
3358 		media_type = ixgbe_media_type_unknown;
3359 		break;
3360 	}
3361 	return media_type;
3362 }
3363 
3364 /** ixgbe_init_ext_t_x550em - Start (unstall) the external Base T PHY.
3365  ** @hw: pointer to hardware structure
3366  **/
ixgbe_init_ext_t_x550em(struct ixgbe_hw * hw)3367 static s32 ixgbe_init_ext_t_x550em(struct ixgbe_hw *hw)
3368 {
3369 	s32 status;
3370 	u16 reg;
3371 
3372 	status = hw->phy.ops.read_reg(hw,
3373 				      IXGBE_MDIO_TX_VENDOR_ALARMS_3,
3374 				      MDIO_MMD_PMAPMD,
3375 				      &reg);
3376 	if (status)
3377 		return status;
3378 
3379 	/* If PHY FW reset completed bit is set then this is the first
3380 	 * SW instance after a power on so the PHY FW must be un-stalled.
3381 	 */
3382 	if (reg & IXGBE_MDIO_TX_VENDOR_ALARMS_3_RST_MASK) {
3383 		status = hw->phy.ops.read_reg(hw,
3384 					IXGBE_MDIO_GLOBAL_RES_PR_10,
3385 					MDIO_MMD_VEND1,
3386 					&reg);
3387 		if (status)
3388 			return status;
3389 
3390 		reg &= ~IXGBE_MDIO_POWER_UP_STALL;
3391 
3392 		status = hw->phy.ops.write_reg(hw,
3393 					IXGBE_MDIO_GLOBAL_RES_PR_10,
3394 					MDIO_MMD_VEND1,
3395 					reg);
3396 		if (status)
3397 			return status;
3398 	}
3399 
3400 	return status;
3401 }
3402 
3403 /**
3404  * ixgbe_set_mdio_speed - Set MDIO clock speed
3405  * @hw: pointer to hardware structure
3406  */
ixgbe_set_mdio_speed(struct ixgbe_hw * hw)3407 static void ixgbe_set_mdio_speed(struct ixgbe_hw *hw)
3408 {
3409 	u32 hlreg0;
3410 
3411 	switch (hw->device_id) {
3412 	case IXGBE_DEV_ID_X550EM_X_10G_T:
3413 	case IXGBE_DEV_ID_X550EM_A_SGMII:
3414 	case IXGBE_DEV_ID_X550EM_A_SGMII_L:
3415 	case IXGBE_DEV_ID_X550EM_A_10G_T:
3416 	case IXGBE_DEV_ID_X550EM_A_SFP:
3417 		/* Config MDIO clock speed before the first MDIO PHY access */
3418 		hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0);
3419 		hlreg0 &= ~IXGBE_HLREG0_MDCSPD;
3420 		IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0);
3421 		break;
3422 	case IXGBE_DEV_ID_X550EM_A_1G_T:
3423 	case IXGBE_DEV_ID_X550EM_A_1G_T_L:
3424 		/* Select fast MDIO clock speed for these devices */
3425 		hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0);
3426 		hlreg0 |= IXGBE_HLREG0_MDCSPD;
3427 		IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0);
3428 		break;
3429 	default:
3430 		break;
3431 	}
3432 }
3433 
3434 /**  ixgbe_reset_hw_X550em - Perform hardware reset
3435  **  @hw: pointer to hardware structure
3436  **
3437  **  Resets the hardware by resetting the transmit and receive units, masks
3438  **  and clears all interrupts, perform a PHY reset, and perform a link (MAC)
3439  **  reset.
3440  **/
ixgbe_reset_hw_X550em(struct ixgbe_hw * hw)3441 static s32 ixgbe_reset_hw_X550em(struct ixgbe_hw *hw)
3442 {
3443 	ixgbe_link_speed link_speed;
3444 	s32 status;
3445 	u32 ctrl = 0;
3446 	u32 i;
3447 	bool link_up = false;
3448 	u32 swfw_mask = hw->phy.phy_semaphore_mask;
3449 
3450 	/* Call adapter stop to disable Tx/Rx and clear interrupts */
3451 	status = hw->mac.ops.stop_adapter(hw);
3452 	if (status)
3453 		return status;
3454 
3455 	/* flush pending Tx transactions */
3456 	ixgbe_clear_tx_pending(hw);
3457 
3458 	/* set MDIO speed before talking to the PHY in case it's the 1st time */
3459 	ixgbe_set_mdio_speed(hw);
3460 
3461 	/* PHY ops must be identified and initialized prior to reset */
3462 	status = hw->phy.ops.init(hw);
3463 	if (status == IXGBE_ERR_SFP_NOT_SUPPORTED ||
3464 	    status == IXGBE_ERR_PHY_ADDR_INVALID)
3465 		return status;
3466 
3467 	/* start the external PHY */
3468 	if (hw->phy.type == ixgbe_phy_x550em_ext_t) {
3469 		status = ixgbe_init_ext_t_x550em(hw);
3470 		if (status)
3471 			return status;
3472 	}
3473 
3474 	/* Setup SFP module if there is one present. */
3475 	if (hw->phy.sfp_setup_needed) {
3476 		status = hw->mac.ops.setup_sfp(hw);
3477 		hw->phy.sfp_setup_needed = false;
3478 	}
3479 
3480 	if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
3481 		return status;
3482 
3483 	/* Reset PHY */
3484 	if (!hw->phy.reset_disable && hw->phy.ops.reset)
3485 		hw->phy.ops.reset(hw);
3486 
3487 mac_reset_top:
3488 	/* Issue global reset to the MAC.  Needs to be SW reset if link is up.
3489 	 * If link reset is used when link is up, it might reset the PHY when
3490 	 * mng is using it.  If link is down or the flag to force full link
3491 	 * reset is set, then perform link reset.
3492 	 */
3493 	ctrl = IXGBE_CTRL_LNK_RST;
3494 
3495 	if (!hw->force_full_reset) {
3496 		hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
3497 		if (link_up)
3498 			ctrl = IXGBE_CTRL_RST;
3499 	}
3500 
3501 	status = hw->mac.ops.acquire_swfw_sync(hw, swfw_mask);
3502 	if (status) {
3503 		hw_dbg(hw, "semaphore failed with %d", status);
3504 		return IXGBE_ERR_SWFW_SYNC;
3505 	}
3506 
3507 	ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL);
3508 	IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
3509 	IXGBE_WRITE_FLUSH(hw);
3510 	hw->mac.ops.release_swfw_sync(hw, swfw_mask);
3511 	usleep_range(1000, 1200);
3512 
3513 	/* Poll for reset bit to self-clear meaning reset is complete */
3514 	for (i = 0; i < 10; i++) {
3515 		ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
3516 		if (!(ctrl & IXGBE_CTRL_RST_MASK))
3517 			break;
3518 		udelay(1);
3519 	}
3520 
3521 	if (ctrl & IXGBE_CTRL_RST_MASK) {
3522 		status = IXGBE_ERR_RESET_FAILED;
3523 		hw_dbg(hw, "Reset polling failed to complete.\n");
3524 	}
3525 
3526 	msleep(50);
3527 
3528 	/* Double resets are required for recovery from certain error
3529 	 * clear the multicast table.  Also reset num_rar_entries to 128,
3530 	 * since we modify this value when programming the SAN MAC address.
3531 	 */
3532 	if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
3533 		hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
3534 		goto mac_reset_top;
3535 	}
3536 
3537 	/* Store the permanent mac address */
3538 	hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
3539 
3540 	/* Store MAC address from RAR0, clear receive address registers, and
3541 	 * clear the multicast table.  Also reset num_rar_entries to 128,
3542 	 * since we modify this value when programming the SAN MAC address.
3543 	 */
3544 	hw->mac.num_rar_entries = 128;
3545 	hw->mac.ops.init_rx_addrs(hw);
3546 
3547 	ixgbe_set_mdio_speed(hw);
3548 
3549 	if (hw->device_id == IXGBE_DEV_ID_X550EM_X_SFP)
3550 		ixgbe_setup_mux_ctl(hw);
3551 
3552 	return status;
3553 }
3554 
3555 /** ixgbe_set_ethertype_anti_spoofing_X550 - Enable/Disable Ethertype
3556  *	anti-spoofing
3557  *  @hw:  pointer to hardware structure
3558  *  @enable: enable or disable switch for Ethertype anti-spoofing
3559  *  @vf: Virtual Function pool - VF Pool to set for Ethertype anti-spoofing
3560  **/
ixgbe_set_ethertype_anti_spoofing_X550(struct ixgbe_hw * hw,bool enable,int vf)3561 static void ixgbe_set_ethertype_anti_spoofing_X550(struct ixgbe_hw *hw,
3562 						   bool enable, int vf)
3563 {
3564 	int vf_target_reg = vf >> 3;
3565 	int vf_target_shift = vf % 8 + IXGBE_SPOOF_ETHERTYPEAS_SHIFT;
3566 	u32 pfvfspoof;
3567 
3568 	pfvfspoof = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg));
3569 	if (enable)
3570 		pfvfspoof |= BIT(vf_target_shift);
3571 	else
3572 		pfvfspoof &= ~BIT(vf_target_shift);
3573 
3574 	IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), pfvfspoof);
3575 }
3576 
3577 /** ixgbe_set_source_address_pruning_X550 - Enable/Disbale src address pruning
3578  *  @hw: pointer to hardware structure
3579  *  @enable: enable or disable source address pruning
3580  *  @pool: Rx pool to set source address pruning for
3581  **/
ixgbe_set_source_address_pruning_X550(struct ixgbe_hw * hw,bool enable,unsigned int pool)3582 static void ixgbe_set_source_address_pruning_X550(struct ixgbe_hw *hw,
3583 						  bool enable,
3584 						  unsigned int pool)
3585 {
3586 	u64 pfflp;
3587 
3588 	/* max rx pool is 63 */
3589 	if (pool > 63)
3590 		return;
3591 
3592 	pfflp = (u64)IXGBE_READ_REG(hw, IXGBE_PFFLPL);
3593 	pfflp |= (u64)IXGBE_READ_REG(hw, IXGBE_PFFLPH) << 32;
3594 
3595 	if (enable)
3596 		pfflp |= (1ULL << pool);
3597 	else
3598 		pfflp &= ~(1ULL << pool);
3599 
3600 	IXGBE_WRITE_REG(hw, IXGBE_PFFLPL, (u32)pfflp);
3601 	IXGBE_WRITE_REG(hw, IXGBE_PFFLPH, (u32)(pfflp >> 32));
3602 }
3603 
3604 /**
3605  *  ixgbe_setup_fc_backplane_x550em_a - Set up flow control
3606  *  @hw: pointer to hardware structure
3607  *
3608  *  Called at init time to set up flow control.
3609  **/
ixgbe_setup_fc_backplane_x550em_a(struct ixgbe_hw * hw)3610 static s32 ixgbe_setup_fc_backplane_x550em_a(struct ixgbe_hw *hw)
3611 {
3612 	s32 status = 0;
3613 	u32 an_cntl = 0;
3614 
3615 	/* Validate the requested mode */
3616 	if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
3617 		hw_err(hw, "ixgbe_fc_rx_pause not valid in strict IEEE mode\n");
3618 		return IXGBE_ERR_INVALID_LINK_SETTINGS;
3619 	}
3620 
3621 	if (hw->fc.requested_mode == ixgbe_fc_default)
3622 		hw->fc.requested_mode = ixgbe_fc_full;
3623 
3624 	/* Set up the 1G and 10G flow control advertisement registers so the
3625 	 * HW will be able to do FC autoneg once the cable is plugged in.  If
3626 	 * we link at 10G, the 1G advertisement is harmless and vice versa.
3627 	 */
3628 	status = hw->mac.ops.read_iosf_sb_reg(hw,
3629 					IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
3630 					IXGBE_SB_IOSF_TARGET_KR_PHY, &an_cntl);
3631 
3632 	if (status) {
3633 		hw_dbg(hw, "Auto-Negotiation did not complete\n");
3634 		return status;
3635 	}
3636 
3637 	/* The possible values of fc.requested_mode are:
3638 	 * 0: Flow control is completely disabled
3639 	 * 1: Rx flow control is enabled (we can receive pause frames,
3640 	 *    but not send pause frames).
3641 	 * 2: Tx flow control is enabled (we can send pause frames but
3642 	 *    we do not support receiving pause frames).
3643 	 * 3: Both Rx and Tx flow control (symmetric) are enabled.
3644 	 * other: Invalid.
3645 	 */
3646 	switch (hw->fc.requested_mode) {
3647 	case ixgbe_fc_none:
3648 		/* Flow control completely disabled by software override. */
3649 		an_cntl &= ~(IXGBE_KRM_AN_CNTL_1_SYM_PAUSE |
3650 			     IXGBE_KRM_AN_CNTL_1_ASM_PAUSE);
3651 		break;
3652 	case ixgbe_fc_tx_pause:
3653 		/* Tx Flow control is enabled, and Rx Flow control is
3654 		 * disabled by software override.
3655 		 */
3656 		an_cntl |= IXGBE_KRM_AN_CNTL_1_ASM_PAUSE;
3657 		an_cntl &= ~IXGBE_KRM_AN_CNTL_1_SYM_PAUSE;
3658 		break;
3659 	case ixgbe_fc_rx_pause:
3660 		/* Rx Flow control is enabled and Tx Flow control is
3661 		 * disabled by software override. Since there really
3662 		 * isn't a way to advertise that we are capable of RX
3663 		 * Pause ONLY, we will advertise that we support both
3664 		 * symmetric and asymmetric Rx PAUSE, as such we fall
3665 		 * through to the fc_full statement.  Later, we will
3666 		 * disable the adapter's ability to send PAUSE frames.
3667 		 */
3668 	case ixgbe_fc_full:
3669 		/* Flow control (both Rx and Tx) is enabled by SW override. */
3670 		an_cntl |= IXGBE_KRM_AN_CNTL_1_SYM_PAUSE |
3671 			   IXGBE_KRM_AN_CNTL_1_ASM_PAUSE;
3672 		break;
3673 	default:
3674 		hw_err(hw, "Flow control param set incorrectly\n");
3675 		return IXGBE_ERR_CONFIG;
3676 	}
3677 
3678 	status = hw->mac.ops.write_iosf_sb_reg(hw,
3679 					IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
3680 					IXGBE_SB_IOSF_TARGET_KR_PHY, an_cntl);
3681 
3682 	/* Restart auto-negotiation. */
3683 	status = ixgbe_restart_an_internal_phy_x550em(hw);
3684 
3685 	return status;
3686 }
3687 
3688 /**
3689  * ixgbe_set_mux - Set mux for port 1 access with CS4227
3690  * @hw: pointer to hardware structure
3691  * @state: set mux if 1, clear if 0
3692  */
ixgbe_set_mux(struct ixgbe_hw * hw,u8 state)3693 static void ixgbe_set_mux(struct ixgbe_hw *hw, u8 state)
3694 {
3695 	u32 esdp;
3696 
3697 	if (!hw->bus.lan_id)
3698 		return;
3699 	esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
3700 	if (state)
3701 		esdp |= IXGBE_ESDP_SDP1;
3702 	else
3703 		esdp &= ~IXGBE_ESDP_SDP1;
3704 	IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
3705 	IXGBE_WRITE_FLUSH(hw);
3706 }
3707 
3708 /**
3709  * ixgbe_acquire_swfw_sync_X550em - Acquire SWFW semaphore
3710  * @hw: pointer to hardware structure
3711  * @mask: Mask to specify which semaphore to acquire
3712  *
3713  * Acquires the SWFW semaphore and sets the I2C MUX
3714  */
ixgbe_acquire_swfw_sync_X550em(struct ixgbe_hw * hw,u32 mask)3715 static s32 ixgbe_acquire_swfw_sync_X550em(struct ixgbe_hw *hw, u32 mask)
3716 {
3717 	s32 status;
3718 
3719 	status = ixgbe_acquire_swfw_sync_X540(hw, mask);
3720 	if (status)
3721 		return status;
3722 
3723 	if (mask & IXGBE_GSSR_I2C_MASK)
3724 		ixgbe_set_mux(hw, 1);
3725 
3726 	return 0;
3727 }
3728 
3729 /**
3730  * ixgbe_release_swfw_sync_X550em - Release SWFW semaphore
3731  * @hw: pointer to hardware structure
3732  * @mask: Mask to specify which semaphore to release
3733  *
3734  * Releases the SWFW semaphore and sets the I2C MUX
3735  */
ixgbe_release_swfw_sync_X550em(struct ixgbe_hw * hw,u32 mask)3736 static void ixgbe_release_swfw_sync_X550em(struct ixgbe_hw *hw, u32 mask)
3737 {
3738 	if (mask & IXGBE_GSSR_I2C_MASK)
3739 		ixgbe_set_mux(hw, 0);
3740 
3741 	ixgbe_release_swfw_sync_X540(hw, mask);
3742 }
3743 
3744 /**
3745  * ixgbe_acquire_swfw_sync_x550em_a - Acquire SWFW semaphore
3746  * @hw: pointer to hardware structure
3747  * @mask: Mask to specify which semaphore to acquire
3748  *
3749  * Acquires the SWFW semaphore and get the shared PHY token as needed
3750  */
ixgbe_acquire_swfw_sync_x550em_a(struct ixgbe_hw * hw,u32 mask)3751 static s32 ixgbe_acquire_swfw_sync_x550em_a(struct ixgbe_hw *hw, u32 mask)
3752 {
3753 	u32 hmask = mask & ~IXGBE_GSSR_TOKEN_SM;
3754 	int retries = FW_PHY_TOKEN_RETRIES;
3755 	s32 status;
3756 
3757 	while (--retries) {
3758 		status = 0;
3759 		if (hmask)
3760 			status = ixgbe_acquire_swfw_sync_X540(hw, hmask);
3761 		if (status)
3762 			return status;
3763 		if (!(mask & IXGBE_GSSR_TOKEN_SM))
3764 			return 0;
3765 
3766 		status = ixgbe_get_phy_token(hw);
3767 		if (!status)
3768 			return 0;
3769 		if (hmask)
3770 			ixgbe_release_swfw_sync_X540(hw, hmask);
3771 		if (status != IXGBE_ERR_TOKEN_RETRY)
3772 			return status;
3773 		msleep(FW_PHY_TOKEN_DELAY);
3774 	}
3775 
3776 	return status;
3777 }
3778 
3779 /**
3780  * ixgbe_release_swfw_sync_x550em_a - Release SWFW semaphore
3781  * @hw: pointer to hardware structure
3782  * @mask: Mask to specify which semaphore to release
3783  *
3784  * Release the SWFW semaphore and puts the shared PHY token as needed
3785  */
ixgbe_release_swfw_sync_x550em_a(struct ixgbe_hw * hw,u32 mask)3786 static void ixgbe_release_swfw_sync_x550em_a(struct ixgbe_hw *hw, u32 mask)
3787 {
3788 	u32 hmask = mask & ~IXGBE_GSSR_TOKEN_SM;
3789 
3790 	if (mask & IXGBE_GSSR_TOKEN_SM)
3791 		ixgbe_put_phy_token(hw);
3792 
3793 	if (hmask)
3794 		ixgbe_release_swfw_sync_X540(hw, hmask);
3795 }
3796 
3797 /**
3798  * ixgbe_read_phy_reg_x550a - Reads specified PHY register
3799  * @hw: pointer to hardware structure
3800  * @reg_addr: 32 bit address of PHY register to read
3801  * @device_type: 5 bit device type
3802  * @phy_data: Pointer to read data from PHY register
3803  *
3804  * Reads a value from a specified PHY register using the SWFW lock and PHY
3805  * Token. The PHY Token is needed since the MDIO is shared between to MAC
3806  * instances.
3807  */
ixgbe_read_phy_reg_x550a(struct ixgbe_hw * hw,u32 reg_addr,u32 device_type,u16 * phy_data)3808 static s32 ixgbe_read_phy_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr,
3809 				    u32 device_type, u16 *phy_data)
3810 {
3811 	u32 mask = hw->phy.phy_semaphore_mask | IXGBE_GSSR_TOKEN_SM;
3812 	s32 status;
3813 
3814 	if (hw->mac.ops.acquire_swfw_sync(hw, mask))
3815 		return IXGBE_ERR_SWFW_SYNC;
3816 
3817 	status = hw->phy.ops.read_reg_mdi(hw, reg_addr, device_type, phy_data);
3818 
3819 	hw->mac.ops.release_swfw_sync(hw, mask);
3820 
3821 	return status;
3822 }
3823 
3824 /**
3825  * ixgbe_write_phy_reg_x550a - Writes specified PHY register
3826  * @hw: pointer to hardware structure
3827  * @reg_addr: 32 bit PHY register to write
3828  * @device_type: 5 bit device type
3829  * @phy_data: Data to write to the PHY register
3830  *
3831  * Writes a value to specified PHY register using the SWFW lock and PHY Token.
3832  * The PHY Token is needed since the MDIO is shared between to MAC instances.
3833  */
ixgbe_write_phy_reg_x550a(struct ixgbe_hw * hw,u32 reg_addr,u32 device_type,u16 phy_data)3834 static s32 ixgbe_write_phy_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr,
3835 				     u32 device_type, u16 phy_data)
3836 {
3837 	u32 mask = hw->phy.phy_semaphore_mask | IXGBE_GSSR_TOKEN_SM;
3838 	s32 status;
3839 
3840 	if (hw->mac.ops.acquire_swfw_sync(hw, mask))
3841 		return IXGBE_ERR_SWFW_SYNC;
3842 
3843 	status = ixgbe_write_phy_reg_mdi(hw, reg_addr, device_type, phy_data);
3844 	hw->mac.ops.release_swfw_sync(hw, mask);
3845 
3846 	return status;
3847 }
3848 
3849 #define X550_COMMON_MAC \
3850 	.init_hw			= &ixgbe_init_hw_generic, \
3851 	.start_hw			= &ixgbe_start_hw_X540, \
3852 	.clear_hw_cntrs			= &ixgbe_clear_hw_cntrs_generic, \
3853 	.enable_rx_dma			= &ixgbe_enable_rx_dma_generic, \
3854 	.get_mac_addr			= &ixgbe_get_mac_addr_generic, \
3855 	.get_device_caps		= &ixgbe_get_device_caps_generic, \
3856 	.stop_adapter			= &ixgbe_stop_adapter_generic, \
3857 	.set_lan_id			= &ixgbe_set_lan_id_multi_port_pcie, \
3858 	.read_analog_reg8		= NULL, \
3859 	.write_analog_reg8		= NULL, \
3860 	.set_rxpba			= &ixgbe_set_rxpba_generic, \
3861 	.check_link			= &ixgbe_check_mac_link_generic, \
3862 	.blink_led_start		= &ixgbe_blink_led_start_X540, \
3863 	.blink_led_stop			= &ixgbe_blink_led_stop_X540, \
3864 	.set_rar			= &ixgbe_set_rar_generic, \
3865 	.clear_rar			= &ixgbe_clear_rar_generic, \
3866 	.set_vmdq			= &ixgbe_set_vmdq_generic, \
3867 	.set_vmdq_san_mac		= &ixgbe_set_vmdq_san_mac_generic, \
3868 	.clear_vmdq			= &ixgbe_clear_vmdq_generic, \
3869 	.init_rx_addrs			= &ixgbe_init_rx_addrs_generic, \
3870 	.update_mc_addr_list		= &ixgbe_update_mc_addr_list_generic, \
3871 	.enable_mc			= &ixgbe_enable_mc_generic, \
3872 	.disable_mc			= &ixgbe_disable_mc_generic, \
3873 	.clear_vfta			= &ixgbe_clear_vfta_generic, \
3874 	.set_vfta			= &ixgbe_set_vfta_generic, \
3875 	.fc_enable			= &ixgbe_fc_enable_generic, \
3876 	.set_fw_drv_ver			= &ixgbe_set_fw_drv_ver_x550, \
3877 	.init_uta_tables		= &ixgbe_init_uta_tables_generic, \
3878 	.set_mac_anti_spoofing		= &ixgbe_set_mac_anti_spoofing, \
3879 	.set_vlan_anti_spoofing		= &ixgbe_set_vlan_anti_spoofing, \
3880 	.set_source_address_pruning	= \
3881 				&ixgbe_set_source_address_pruning_X550, \
3882 	.set_ethertype_anti_spoofing	= \
3883 				&ixgbe_set_ethertype_anti_spoofing_X550, \
3884 	.disable_rx_buff		= &ixgbe_disable_rx_buff_generic, \
3885 	.enable_rx_buff			= &ixgbe_enable_rx_buff_generic, \
3886 	.get_thermal_sensor_data	= NULL, \
3887 	.init_thermal_sensor_thresh	= NULL, \
3888 	.fw_recovery_mode		= &ixgbe_fw_recovery_mode_X550, \
3889 	.enable_rx			= &ixgbe_enable_rx_generic, \
3890 	.disable_rx			= &ixgbe_disable_rx_x550, \
3891 
3892 static const struct ixgbe_mac_operations mac_ops_X550 = {
3893 	X550_COMMON_MAC
3894 	.led_on			= ixgbe_led_on_generic,
3895 	.led_off		= ixgbe_led_off_generic,
3896 	.init_led_link_act	= ixgbe_init_led_link_act_generic,
3897 	.reset_hw		= &ixgbe_reset_hw_X540,
3898 	.get_media_type		= &ixgbe_get_media_type_X540,
3899 	.get_san_mac_addr	= &ixgbe_get_san_mac_addr_generic,
3900 	.get_wwn_prefix		= &ixgbe_get_wwn_prefix_generic,
3901 	.setup_link		= &ixgbe_setup_mac_link_X540,
3902 	.get_link_capabilities	= &ixgbe_get_copper_link_capabilities_generic,
3903 	.get_bus_info		= &ixgbe_get_bus_info_generic,
3904 	.setup_sfp		= NULL,
3905 	.acquire_swfw_sync	= &ixgbe_acquire_swfw_sync_X540,
3906 	.release_swfw_sync	= &ixgbe_release_swfw_sync_X540,
3907 	.init_swfw_sync		= &ixgbe_init_swfw_sync_X540,
3908 	.prot_autoc_read	= prot_autoc_read_generic,
3909 	.prot_autoc_write	= prot_autoc_write_generic,
3910 	.setup_fc		= ixgbe_setup_fc_generic,
3911 	.fc_autoneg		= ixgbe_fc_autoneg,
3912 };
3913 
3914 static const struct ixgbe_mac_operations mac_ops_X550EM_x = {
3915 	X550_COMMON_MAC
3916 	.led_on			= ixgbe_led_on_t_x550em,
3917 	.led_off		= ixgbe_led_off_t_x550em,
3918 	.init_led_link_act	= ixgbe_init_led_link_act_generic,
3919 	.reset_hw		= &ixgbe_reset_hw_X550em,
3920 	.get_media_type		= &ixgbe_get_media_type_X550em,
3921 	.get_san_mac_addr	= NULL,
3922 	.get_wwn_prefix		= NULL,
3923 	.setup_link		= &ixgbe_setup_mac_link_X540,
3924 	.get_link_capabilities	= &ixgbe_get_link_capabilities_X550em,
3925 	.get_bus_info		= &ixgbe_get_bus_info_X550em,
3926 	.setup_sfp		= ixgbe_setup_sfp_modules_X550em,
3927 	.acquire_swfw_sync	= &ixgbe_acquire_swfw_sync_X550em,
3928 	.release_swfw_sync	= &ixgbe_release_swfw_sync_X550em,
3929 	.init_swfw_sync		= &ixgbe_init_swfw_sync_X540,
3930 	.setup_fc		= NULL, /* defined later */
3931 	.fc_autoneg		= ixgbe_fc_autoneg,
3932 	.read_iosf_sb_reg	= ixgbe_read_iosf_sb_reg_x550,
3933 	.write_iosf_sb_reg	= ixgbe_write_iosf_sb_reg_x550,
3934 };
3935 
3936 static const struct ixgbe_mac_operations mac_ops_X550EM_x_fw = {
3937 	X550_COMMON_MAC
3938 	.led_on			= NULL,
3939 	.led_off		= NULL,
3940 	.init_led_link_act	= NULL,
3941 	.reset_hw		= &ixgbe_reset_hw_X550em,
3942 	.get_media_type		= &ixgbe_get_media_type_X550em,
3943 	.get_san_mac_addr	= NULL,
3944 	.get_wwn_prefix		= NULL,
3945 	.setup_link		= &ixgbe_setup_mac_link_X540,
3946 	.get_link_capabilities	= &ixgbe_get_link_capabilities_X550em,
3947 	.get_bus_info		= &ixgbe_get_bus_info_X550em,
3948 	.setup_sfp		= ixgbe_setup_sfp_modules_X550em,
3949 	.acquire_swfw_sync	= &ixgbe_acquire_swfw_sync_X550em,
3950 	.release_swfw_sync	= &ixgbe_release_swfw_sync_X550em,
3951 	.init_swfw_sync		= &ixgbe_init_swfw_sync_X540,
3952 	.setup_fc		= NULL,
3953 	.fc_autoneg		= ixgbe_fc_autoneg,
3954 	.read_iosf_sb_reg	= ixgbe_read_iosf_sb_reg_x550,
3955 	.write_iosf_sb_reg	= ixgbe_write_iosf_sb_reg_x550,
3956 };
3957 
3958 static const struct ixgbe_mac_operations mac_ops_x550em_a = {
3959 	X550_COMMON_MAC
3960 	.led_on			= ixgbe_led_on_t_x550em,
3961 	.led_off		= ixgbe_led_off_t_x550em,
3962 	.init_led_link_act	= ixgbe_init_led_link_act_generic,
3963 	.reset_hw		= ixgbe_reset_hw_X550em,
3964 	.get_media_type		= ixgbe_get_media_type_X550em,
3965 	.get_san_mac_addr	= NULL,
3966 	.get_wwn_prefix		= NULL,
3967 	.setup_link		= &ixgbe_setup_mac_link_X540,
3968 	.get_link_capabilities	= ixgbe_get_link_capabilities_X550em,
3969 	.get_bus_info		= ixgbe_get_bus_info_X550em,
3970 	.setup_sfp		= ixgbe_setup_sfp_modules_X550em,
3971 	.acquire_swfw_sync	= ixgbe_acquire_swfw_sync_x550em_a,
3972 	.release_swfw_sync	= ixgbe_release_swfw_sync_x550em_a,
3973 	.setup_fc		= ixgbe_setup_fc_x550em,
3974 	.fc_autoneg		= ixgbe_fc_autoneg,
3975 	.read_iosf_sb_reg	= ixgbe_read_iosf_sb_reg_x550a,
3976 	.write_iosf_sb_reg	= ixgbe_write_iosf_sb_reg_x550a,
3977 };
3978 
3979 static const struct ixgbe_mac_operations mac_ops_x550em_a_fw = {
3980 	X550_COMMON_MAC
3981 	.led_on			= ixgbe_led_on_generic,
3982 	.led_off		= ixgbe_led_off_generic,
3983 	.init_led_link_act	= ixgbe_init_led_link_act_generic,
3984 	.reset_hw		= ixgbe_reset_hw_X550em,
3985 	.get_media_type		= ixgbe_get_media_type_X550em,
3986 	.get_san_mac_addr	= NULL,
3987 	.get_wwn_prefix		= NULL,
3988 	.setup_link		= NULL, /* defined later */
3989 	.get_link_capabilities	= ixgbe_get_link_capabilities_X550em,
3990 	.get_bus_info		= ixgbe_get_bus_info_X550em,
3991 	.setup_sfp		= ixgbe_setup_sfp_modules_X550em,
3992 	.acquire_swfw_sync	= ixgbe_acquire_swfw_sync_x550em_a,
3993 	.release_swfw_sync	= ixgbe_release_swfw_sync_x550em_a,
3994 	.setup_fc		= ixgbe_setup_fc_x550em,
3995 	.fc_autoneg		= ixgbe_fc_autoneg,
3996 	.read_iosf_sb_reg	= ixgbe_read_iosf_sb_reg_x550a,
3997 	.write_iosf_sb_reg	= ixgbe_write_iosf_sb_reg_x550a,
3998 };
3999 
4000 #define X550_COMMON_EEP \
4001 	.read			= &ixgbe_read_ee_hostif_X550, \
4002 	.read_buffer		= &ixgbe_read_ee_hostif_buffer_X550, \
4003 	.write			= &ixgbe_write_ee_hostif_X550, \
4004 	.write_buffer		= &ixgbe_write_ee_hostif_buffer_X550, \
4005 	.validate_checksum	= &ixgbe_validate_eeprom_checksum_X550, \
4006 	.update_checksum	= &ixgbe_update_eeprom_checksum_X550, \
4007 	.calc_checksum		= &ixgbe_calc_eeprom_checksum_X550, \
4008 
4009 static const struct ixgbe_eeprom_operations eeprom_ops_X550 = {
4010 	X550_COMMON_EEP
4011 	.init_params		= &ixgbe_init_eeprom_params_X550,
4012 };
4013 
4014 static const struct ixgbe_eeprom_operations eeprom_ops_X550EM_x = {
4015 	X550_COMMON_EEP
4016 	.init_params		= &ixgbe_init_eeprom_params_X540,
4017 };
4018 
4019 #define X550_COMMON_PHY	\
4020 	.identify_sfp		= &ixgbe_identify_module_generic, \
4021 	.reset			= NULL, \
4022 	.setup_link_speed	= &ixgbe_setup_phy_link_speed_generic, \
4023 	.read_i2c_byte		= &ixgbe_read_i2c_byte_generic, \
4024 	.write_i2c_byte		= &ixgbe_write_i2c_byte_generic, \
4025 	.read_i2c_sff8472	= &ixgbe_read_i2c_sff8472_generic, \
4026 	.read_i2c_eeprom	= &ixgbe_read_i2c_eeprom_generic, \
4027 	.write_i2c_eeprom	= &ixgbe_write_i2c_eeprom_generic, \
4028 	.setup_link		= &ixgbe_setup_phy_link_generic, \
4029 	.set_phy_power		= NULL,
4030 
4031 static const struct ixgbe_phy_operations phy_ops_X550 = {
4032 	X550_COMMON_PHY
4033 	.check_overtemp		= &ixgbe_tn_check_overtemp,
4034 	.init			= NULL,
4035 	.identify		= &ixgbe_identify_phy_generic,
4036 	.read_reg		= &ixgbe_read_phy_reg_generic,
4037 	.write_reg		= &ixgbe_write_phy_reg_generic,
4038 };
4039 
4040 static const struct ixgbe_phy_operations phy_ops_X550EM_x = {
4041 	X550_COMMON_PHY
4042 	.check_overtemp		= &ixgbe_tn_check_overtemp,
4043 	.init			= &ixgbe_init_phy_ops_X550em,
4044 	.identify		= &ixgbe_identify_phy_x550em,
4045 	.read_reg		= &ixgbe_read_phy_reg_generic,
4046 	.write_reg		= &ixgbe_write_phy_reg_generic,
4047 };
4048 
4049 static const struct ixgbe_phy_operations phy_ops_x550em_x_fw = {
4050 	X550_COMMON_PHY
4051 	.check_overtemp		= NULL,
4052 	.init			= ixgbe_init_phy_ops_X550em,
4053 	.identify		= ixgbe_identify_phy_x550em,
4054 	.read_reg		= NULL,
4055 	.write_reg		= NULL,
4056 	.read_reg_mdi		= NULL,
4057 	.write_reg_mdi		= NULL,
4058 };
4059 
4060 static const struct ixgbe_phy_operations phy_ops_x550em_a = {
4061 	X550_COMMON_PHY
4062 	.check_overtemp		= &ixgbe_tn_check_overtemp,
4063 	.init			= &ixgbe_init_phy_ops_X550em,
4064 	.identify		= &ixgbe_identify_phy_x550em,
4065 	.read_reg		= &ixgbe_read_phy_reg_x550a,
4066 	.write_reg		= &ixgbe_write_phy_reg_x550a,
4067 	.read_reg_mdi		= &ixgbe_read_phy_reg_mdi,
4068 	.write_reg_mdi		= &ixgbe_write_phy_reg_mdi,
4069 };
4070 
4071 static const struct ixgbe_phy_operations phy_ops_x550em_a_fw = {
4072 	X550_COMMON_PHY
4073 	.check_overtemp		= ixgbe_check_overtemp_fw,
4074 	.init			= ixgbe_init_phy_ops_X550em,
4075 	.identify		= ixgbe_identify_phy_fw,
4076 	.read_reg		= NULL,
4077 	.write_reg		= NULL,
4078 	.read_reg_mdi		= NULL,
4079 	.write_reg_mdi		= NULL,
4080 };
4081 
4082 static const struct ixgbe_link_operations link_ops_x550em_x = {
4083 	.read_link		= &ixgbe_read_i2c_combined_generic,
4084 	.read_link_unlocked	= &ixgbe_read_i2c_combined_generic_unlocked,
4085 	.write_link		= &ixgbe_write_i2c_combined_generic,
4086 	.write_link_unlocked	= &ixgbe_write_i2c_combined_generic_unlocked,
4087 };
4088 
4089 static const u32 ixgbe_mvals_X550[IXGBE_MVALS_IDX_LIMIT] = {
4090 	IXGBE_MVALS_INIT(X550)
4091 };
4092 
4093 static const u32 ixgbe_mvals_X550EM_x[IXGBE_MVALS_IDX_LIMIT] = {
4094 	IXGBE_MVALS_INIT(X550EM_x)
4095 };
4096 
4097 static const u32 ixgbe_mvals_x550em_a[IXGBE_MVALS_IDX_LIMIT] = {
4098 	IXGBE_MVALS_INIT(X550EM_a)
4099 };
4100 
4101 const struct ixgbe_info ixgbe_X550_info = {
4102 	.mac			= ixgbe_mac_X550,
4103 	.get_invariants		= &ixgbe_get_invariants_X540,
4104 	.mac_ops		= &mac_ops_X550,
4105 	.eeprom_ops		= &eeprom_ops_X550,
4106 	.phy_ops		= &phy_ops_X550,
4107 	.mbx_ops		= &mbx_ops_generic,
4108 	.mvals			= ixgbe_mvals_X550,
4109 };
4110 
4111 const struct ixgbe_info ixgbe_X550EM_x_info = {
4112 	.mac			= ixgbe_mac_X550EM_x,
4113 	.get_invariants		= &ixgbe_get_invariants_X550_x,
4114 	.mac_ops		= &mac_ops_X550EM_x,
4115 	.eeprom_ops		= &eeprom_ops_X550EM_x,
4116 	.phy_ops		= &phy_ops_X550EM_x,
4117 	.mbx_ops		= &mbx_ops_generic,
4118 	.mvals			= ixgbe_mvals_X550EM_x,
4119 	.link_ops		= &link_ops_x550em_x,
4120 };
4121 
4122 const struct ixgbe_info ixgbe_x550em_x_fw_info = {
4123 	.mac			= ixgbe_mac_X550EM_x,
4124 	.get_invariants		= ixgbe_get_invariants_X550_x_fw,
4125 	.mac_ops		= &mac_ops_X550EM_x_fw,
4126 	.eeprom_ops		= &eeprom_ops_X550EM_x,
4127 	.phy_ops		= &phy_ops_x550em_x_fw,
4128 	.mbx_ops		= &mbx_ops_generic,
4129 	.mvals			= ixgbe_mvals_X550EM_x,
4130 };
4131 
4132 const struct ixgbe_info ixgbe_x550em_a_info = {
4133 	.mac			= ixgbe_mac_x550em_a,
4134 	.get_invariants		= &ixgbe_get_invariants_X550_a,
4135 	.mac_ops		= &mac_ops_x550em_a,
4136 	.eeprom_ops		= &eeprom_ops_X550EM_x,
4137 	.phy_ops		= &phy_ops_x550em_a,
4138 	.mbx_ops		= &mbx_ops_generic,
4139 	.mvals			= ixgbe_mvals_x550em_a,
4140 };
4141 
4142 const struct ixgbe_info ixgbe_x550em_a_fw_info = {
4143 	.mac			= ixgbe_mac_x550em_a,
4144 	.get_invariants		= ixgbe_get_invariants_X550_a_fw,
4145 	.mac_ops		= &mac_ops_x550em_a_fw,
4146 	.eeprom_ops		= &eeprom_ops_X550EM_x,
4147 	.phy_ops		= &phy_ops_x550em_a_fw,
4148 	.mbx_ops		= &mbx_ops_generic,
4149 	.mvals			= ixgbe_mvals_x550em_a,
4150 };
4151