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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
9static s32 ixgbe_setup_kr_speed_x550em(struct ixgbe_hw *, ixgbe_link_speed);
10static s32 ixgbe_setup_fc_x550em(struct ixgbe_hw *);
11static void ixgbe_fc_autoneg_fiber_x550em_a(struct ixgbe_hw *);
12static void ixgbe_fc_autoneg_backplane_x550em_a(struct ixgbe_hw *);
13static s32 ixgbe_setup_fc_backplane_x550em_a(struct ixgbe_hw *);
14
15static 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
32static 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
44static 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
58static 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 **/
73static 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 */
94static 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 */
107static 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 */
120static 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 */
138static 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 */
156static 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, ®);
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, ®);
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, ®);
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, ®);
191 if (status)
192 return status;
193 reg |= IXGBE_PE_BIT1;
194 status = ixgbe_write_pe(hw, IXGBE_PE_OUTPUT, reg);
195 if (status)
196 return status;
197
198 /* Wait for the reset to complete. */
199 msleep(IXGBE_CS4227_RESET_DELAY);
200 for (retry = 0; retry < IXGBE_CS4227_RETRIES; retry++) {
201 status = ixgbe_read_cs4227(hw, IXGBE_CS4227_EFUSE_STATUS,
202 &value);
203 if (!status && value == IXGBE_CS4227_EEPROM_LOAD_OK)
204 break;
205 msleep(IXGBE_CS4227_CHECK_DELAY);
206 }
207 if (retry == IXGBE_CS4227_RETRIES) {
208 hw_err(hw, "CS4227 reset did not complete\n");
209 return -EIO;
210 }
211
212 status = ixgbe_read_cs4227(hw, IXGBE_CS4227_EEPROM_STATUS, &value);
213 if (status || !(value & IXGBE_CS4227_EEPROM_LOAD_OK)) {
214 hw_err(hw, "CS4227 EEPROM did not load successfully\n");
215 return -EIO;
216 }
217
218 return 0;
219}
220
221/**
222 * ixgbe_check_cs4227 - Check CS4227 and reset as needed
223 * @hw: pointer to hardware structure
224 */
225static 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
285out:
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 */
295static 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
350static s32 ixgbe_read_phy_reg_x550em(struct ixgbe_hw *hw, u32 reg_addr,
351 u32 device_type, u16 *phy_data)
352{
353 return -EOPNOTSUPP;
354}
355
356static s32 ixgbe_write_phy_reg_x550em(struct ixgbe_hw *hw, u32 reg_addr,
357 u32 device_type, u16 phy_data)
358{
359 return -EOPNOTSUPP;
360}
361
362/**
363 * ixgbe_read_i2c_combined_generic - Perform I2C read combined operation
364 * @hw: pointer to the hardware structure
365 * @addr: I2C bus address to read from
366 * @reg: I2C device register to read from
367 * @val: pointer to location to receive read value
368 *
369 * Returns an error code on error.
370 **/
371static 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 **/
386static s32
387ixgbe_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 **/
402static 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 **/
417static s32
418ixgbe_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 */
430s32 ixgbe_fw_phy_activity(struct ixgbe_hw *hw, u16 activity,
431 u32 (*data)[FW_PHY_ACT_DATA_COUNT])
432{
433 union {
434 struct ixgbe_hic_phy_activity_req cmd;
435 struct ixgbe_hic_phy_activity_resp rsp;
436 } hic;
437 u16 retries = FW_PHY_ACT_RETRIES;
438 s32 rc;
439 u32 i;
440
441 do {
442 memset(&hic, 0, sizeof(hic));
443 hic.cmd.hdr.cmd = FW_PHY_ACT_REQ_CMD;
444 hic.cmd.hdr.buf_len = FW_PHY_ACT_REQ_LEN;
445 hic.cmd.hdr.checksum = FW_DEFAULT_CHECKSUM;
446 hic.cmd.port_number = hw->bus.lan_id;
447 hic.cmd.activity_id = cpu_to_le16(activity);
448 for (i = 0; i < ARRAY_SIZE(hic.cmd.data); ++i)
449 hic.cmd.data[i] = cpu_to_be32((*data)[i]);
450
451 rc = ixgbe_host_interface_command(hw, &hic.cmd, sizeof(hic.cmd),
452 IXGBE_HI_COMMAND_TIMEOUT,
453 true);
454 if (rc)
455 return rc;
456 if (hic.rsp.hdr.cmd_or_resp.ret_status ==
457 FW_CEM_RESP_STATUS_SUCCESS) {
458 for (i = 0; i < FW_PHY_ACT_DATA_COUNT; ++i)
459 (*data)[i] = be32_to_cpu(hic.rsp.data[i]);
460 return 0;
461 }
462 usleep_range(20, 30);
463 --retries;
464 } while (retries > 0);
465
466 return -EIO;
467}
468
469static 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 */
487static s32 ixgbe_get_phy_id_fw(struct ixgbe_hw *hw)
488{
489 u32 info[FW_PHY_ACT_DATA_COUNT] = { 0 };
490 u16 phy_speeds;
491 u16 phy_id_lo;
492 s32 rc;
493 u16 i;
494
495 if (hw->phy.id)
496 return 0;
497
498 rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_GET_PHY_INFO, &info);
499 if (rc)
500 return rc;
501
502 hw->phy.speeds_supported = 0;
503 phy_speeds = info[0] & FW_PHY_INFO_SPEED_MASK;
504 for (i = 0; i < ARRAY_SIZE(ixgbe_fw_map); ++i) {
505 if (phy_speeds & ixgbe_fw_map[i].fw_speed)
506 hw->phy.speeds_supported |= ixgbe_fw_map[i].phy_speed;
507 }
508
509 hw->phy.id = info[0] & FW_PHY_INFO_ID_HI_MASK;
510 phy_id_lo = info[1] & FW_PHY_INFO_ID_LO_MASK;
511 hw->phy.id |= phy_id_lo & IXGBE_PHY_REVISION_MASK;
512 hw->phy.revision = phy_id_lo & ~IXGBE_PHY_REVISION_MASK;
513 if (!hw->phy.id || hw->phy.id == IXGBE_PHY_REVISION_MASK)
514 return -EFAULT;
515
516 hw->phy.autoneg_advertised = hw->phy.speeds_supported;
517 hw->phy.eee_speeds_supported = IXGBE_LINK_SPEED_100_FULL |
518 IXGBE_LINK_SPEED_1GB_FULL;
519 hw->phy.eee_speeds_advertised = hw->phy.eee_speeds_supported;
520 return 0;
521}
522
523/**
524 * ixgbe_identify_phy_fw - Get PHY type based on firmware command
525 * @hw: pointer to hardware structure
526 *
527 * Returns error code
528 */
529static 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 */
548static 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 */
560static s32 ixgbe_setup_fw_link(struct ixgbe_hw *hw)
561{
562 u32 setup[FW_PHY_ACT_DATA_COUNT] = { 0 };
563 s32 rc;
564 u16 i;
565
566 if (hw->phy.reset_disable || ixgbe_check_reset_blocked(hw))
567 return 0;
568
569 if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
570 hw_err(hw, "rx_pause not valid in strict IEEE mode\n");
571 return -EINVAL;
572 }
573
574 switch (hw->fc.requested_mode) {
575 case ixgbe_fc_full:
576 setup[0] |= FW_PHY_ACT_SETUP_LINK_PAUSE_RXTX <<
577 FW_PHY_ACT_SETUP_LINK_PAUSE_SHIFT;
578 break;
579 case ixgbe_fc_rx_pause:
580 setup[0] |= FW_PHY_ACT_SETUP_LINK_PAUSE_RX <<
581 FW_PHY_ACT_SETUP_LINK_PAUSE_SHIFT;
582 break;
583 case ixgbe_fc_tx_pause:
584 setup[0] |= FW_PHY_ACT_SETUP_LINK_PAUSE_TX <<
585 FW_PHY_ACT_SETUP_LINK_PAUSE_SHIFT;
586 break;
587 default:
588 break;
589 }
590
591 for (i = 0; i < ARRAY_SIZE(ixgbe_fw_map); ++i) {
592 if (hw->phy.autoneg_advertised & ixgbe_fw_map[i].phy_speed)
593 setup[0] |= ixgbe_fw_map[i].fw_speed;
594 }
595 setup[0] |= FW_PHY_ACT_SETUP_LINK_HP | FW_PHY_ACT_SETUP_LINK_AN;
596
597 if (hw->phy.eee_speeds_advertised)
598 setup[0] |= FW_PHY_ACT_SETUP_LINK_EEE;
599
600 rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_SETUP_LINK, &setup);
601 if (rc)
602 return rc;
603
604 if (setup[0] == FW_PHY_ACT_SETUP_LINK_RSP_DOWN)
605 return -EIO;
606
607 return 0;
608}
609
610/**
611 * ixgbe_fc_autoneg_fw - Set up flow control for FW-controlled PHYs
612 * @hw: pointer to hardware structure
613 *
614 * Called at init time to set up flow control.
615 */
616static s32 ixgbe_fc_autoneg_fw(struct ixgbe_hw *hw)
617{
618 if (hw->fc.requested_mode == ixgbe_fc_default)
619 hw->fc.requested_mode = ixgbe_fc_full;
620
621 return ixgbe_setup_fw_link(hw);
622}
623
624/** ixgbe_init_eeprom_params_X550 - Initialize EEPROM params
625 * @hw: pointer to hardware structure
626 *
627 * Initializes the EEPROM parameters ixgbe_eeprom_info within the
628 * ixgbe_hw struct in order to set up EEPROM access.
629 **/
630static s32 ixgbe_init_eeprom_params_X550(struct ixgbe_hw *hw)
631{
632 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
633
634 if (eeprom->type == ixgbe_eeprom_uninitialized) {
635 u16 eeprom_size;
636 u32 eec;
637
638 eeprom->semaphore_delay = 10;
639 eeprom->type = ixgbe_flash;
640
641 eec = IXGBE_READ_REG(hw, IXGBE_EEC(hw));
642 eeprom_size = FIELD_GET(IXGBE_EEC_SIZE, eec);
643 eeprom->word_size = BIT(eeprom_size +
644 IXGBE_EEPROM_WORD_SIZE_SHIFT);
645
646 hw_dbg(hw, "Eeprom params: type = %d, size = %d\n",
647 eeprom->type, eeprom->word_size);
648 }
649
650 return 0;
651}
652
653/**
654 * ixgbe_iosf_wait - Wait for IOSF command completion
655 * @hw: pointer to hardware structure
656 * @ctrl: pointer to location to receive final IOSF control value
657 *
658 * Return: failing status on timeout
659 *
660 * Note: ctrl can be NULL if the IOSF control register value is not needed
661 */
662static s32 ixgbe_iosf_wait(struct ixgbe_hw *hw, u32 *ctrl)
663{
664 u32 i, command;
665
666 /* Check every 10 usec to see if the address cycle completed.
667 * The SB IOSF BUSY bit will clear when the operation is
668 * complete.
669 */
670 for (i = 0; i < IXGBE_MDIO_COMMAND_TIMEOUT; i++) {
671 command = IXGBE_READ_REG(hw, IXGBE_SB_IOSF_INDIRECT_CTRL);
672 if (!(command & IXGBE_SB_IOSF_CTRL_BUSY))
673 break;
674 udelay(10);
675 }
676 if (ctrl)
677 *ctrl = command;
678 if (i == IXGBE_MDIO_COMMAND_TIMEOUT) {
679 hw_dbg(hw, "IOSF wait timed out\n");
680 return -EIO;
681 }
682
683 return 0;
684}
685
686/** ixgbe_read_iosf_sb_reg_x550 - Writes a value to specified register of the
687 * IOSF device
688 * @hw: pointer to hardware structure
689 * @reg_addr: 32 bit PHY register to write
690 * @device_type: 3 bit device type
691 * @phy_data: Pointer to read data from the register
692 **/
693static s32 ixgbe_read_iosf_sb_reg_x550(struct ixgbe_hw *hw, u32 reg_addr,
694 u32 device_type, u32 *data)
695{
696 u32 gssr = IXGBE_GSSR_PHY1_SM | IXGBE_GSSR_PHY0_SM;
697 u32 command, error;
698 s32 ret;
699
700 ret = hw->mac.ops.acquire_swfw_sync(hw, gssr);
701 if (ret)
702 return ret;
703
704 ret = ixgbe_iosf_wait(hw, NULL);
705 if (ret)
706 goto out;
707
708 command = ((reg_addr << IXGBE_SB_IOSF_CTRL_ADDR_SHIFT) |
709 (device_type << IXGBE_SB_IOSF_CTRL_TARGET_SELECT_SHIFT));
710
711 /* Write IOSF control register */
712 IXGBE_WRITE_REG(hw, IXGBE_SB_IOSF_INDIRECT_CTRL, command);
713
714 ret = ixgbe_iosf_wait(hw, &command);
715
716 if ((command & IXGBE_SB_IOSF_CTRL_RESP_STAT_MASK) != 0) {
717 error = FIELD_GET(IXGBE_SB_IOSF_CTRL_CMPL_ERR_MASK, command);
718 hw_dbg(hw, "Failed to read, error %x\n", error);
719 ret = -EIO;
720 goto out;
721 }
722
723 if (!ret)
724 *data = IXGBE_READ_REG(hw, IXGBE_SB_IOSF_INDIRECT_DATA);
725
726out:
727 hw->mac.ops.release_swfw_sync(hw, gssr);
728 return ret;
729}
730
731/**
732 * ixgbe_get_phy_token - Get the token for shared PHY access
733 * @hw: Pointer to hardware structure
734 */
735static s32 ixgbe_get_phy_token(struct ixgbe_hw *hw)
736{
737 struct ixgbe_hic_phy_token_req token_cmd;
738 s32 status;
739
740 token_cmd.hdr.cmd = FW_PHY_TOKEN_REQ_CMD;
741 token_cmd.hdr.buf_len = FW_PHY_TOKEN_REQ_LEN;
742 token_cmd.hdr.cmd_or_resp.cmd_resv = 0;
743 token_cmd.hdr.checksum = FW_DEFAULT_CHECKSUM;
744 token_cmd.port_number = hw->bus.lan_id;
745 token_cmd.command_type = FW_PHY_TOKEN_REQ;
746 token_cmd.pad = 0;
747 status = ixgbe_host_interface_command(hw, &token_cmd, sizeof(token_cmd),
748 IXGBE_HI_COMMAND_TIMEOUT,
749 true);
750 if (status)
751 return status;
752 if (token_cmd.hdr.cmd_or_resp.ret_status == FW_PHY_TOKEN_OK)
753 return 0;
754 if (token_cmd.hdr.cmd_or_resp.ret_status != FW_PHY_TOKEN_RETRY)
755 return -EIO;
756
757 return -EAGAIN;
758}
759
760/**
761 * ixgbe_put_phy_token - Put the token for shared PHY access
762 * @hw: Pointer to hardware structure
763 */
764static s32 ixgbe_put_phy_token(struct ixgbe_hw *hw)
765{
766 struct ixgbe_hic_phy_token_req token_cmd;
767 s32 status;
768
769 token_cmd.hdr.cmd = FW_PHY_TOKEN_REQ_CMD;
770 token_cmd.hdr.buf_len = FW_PHY_TOKEN_REQ_LEN;
771 token_cmd.hdr.cmd_or_resp.cmd_resv = 0;
772 token_cmd.hdr.checksum = FW_DEFAULT_CHECKSUM;
773 token_cmd.port_number = hw->bus.lan_id;
774 token_cmd.command_type = FW_PHY_TOKEN_REL;
775 token_cmd.pad = 0;
776 status = ixgbe_host_interface_command(hw, &token_cmd, sizeof(token_cmd),
777 IXGBE_HI_COMMAND_TIMEOUT,
778 true);
779 if (status)
780 return status;
781 if (token_cmd.hdr.cmd_or_resp.ret_status == FW_PHY_TOKEN_OK)
782 return 0;
783 return -EIO;
784}
785
786/**
787 * ixgbe_write_iosf_sb_reg_x550a - Write to IOSF PHY register
788 * @hw: pointer to hardware structure
789 * @reg_addr: 32 bit PHY register to write
790 * @device_type: 3 bit device type
791 * @data: Data to write to the register
792 **/
793static s32 ixgbe_write_iosf_sb_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr,
794 __always_unused u32 device_type,
795 u32 data)
796{
797 struct ixgbe_hic_internal_phy_req write_cmd;
798
799 memset(&write_cmd, 0, sizeof(write_cmd));
800 write_cmd.hdr.cmd = FW_INT_PHY_REQ_CMD;
801 write_cmd.hdr.buf_len = FW_INT_PHY_REQ_LEN;
802 write_cmd.hdr.checksum = FW_DEFAULT_CHECKSUM;
803 write_cmd.port_number = hw->bus.lan_id;
804 write_cmd.command_type = FW_INT_PHY_REQ_WRITE;
805 write_cmd.address = cpu_to_be16(reg_addr);
806 write_cmd.write_data = cpu_to_be32(data);
807
808 return ixgbe_host_interface_command(hw, &write_cmd, sizeof(write_cmd),
809 IXGBE_HI_COMMAND_TIMEOUT, false);
810}
811
812/**
813 * ixgbe_read_iosf_sb_reg_x550a - Read from IOSF PHY register
814 * @hw: pointer to hardware structure
815 * @reg_addr: 32 bit PHY register to write
816 * @device_type: 3 bit device type
817 * @data: Pointer to read data from the register
818 **/
819static s32 ixgbe_read_iosf_sb_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr,
820 __always_unused u32 device_type,
821 u32 *data)
822{
823 union {
824 struct ixgbe_hic_internal_phy_req cmd;
825 struct ixgbe_hic_internal_phy_resp rsp;
826 } hic;
827 s32 status;
828
829 memset(&hic, 0, sizeof(hic));
830 hic.cmd.hdr.cmd = FW_INT_PHY_REQ_CMD;
831 hic.cmd.hdr.buf_len = FW_INT_PHY_REQ_LEN;
832 hic.cmd.hdr.checksum = FW_DEFAULT_CHECKSUM;
833 hic.cmd.port_number = hw->bus.lan_id;
834 hic.cmd.command_type = FW_INT_PHY_REQ_READ;
835 hic.cmd.address = cpu_to_be16(reg_addr);
836
837 status = ixgbe_host_interface_command(hw, &hic.cmd, sizeof(hic.cmd),
838 IXGBE_HI_COMMAND_TIMEOUT, true);
839
840 /* Extract the register value from the response. */
841 *data = be32_to_cpu(hic.rsp.read_data);
842
843 return status;
844}
845
846/** ixgbe_read_ee_hostif_buffer_X550- Read EEPROM word(s) using hostif
847 * @hw: pointer to hardware structure
848 * @offset: offset of word in the EEPROM to read
849 * @words: number of words
850 * @data: word(s) read from the EEPROM
851 *
852 * Reads a 16 bit word(s) from the EEPROM using the hostif.
853 **/
854static s32 ixgbe_read_ee_hostif_buffer_X550(struct ixgbe_hw *hw,
855 u16 offset, u16 words, u16 *data)
856{
857 const u32 mask = IXGBE_GSSR_SW_MNG_SM | IXGBE_GSSR_EEP_SM;
858 struct ixgbe_hic_read_shadow_ram buffer;
859 u32 current_word = 0;
860 u16 words_to_read;
861 s32 status;
862 u32 i;
863
864 /* Take semaphore for the entire operation. */
865 status = hw->mac.ops.acquire_swfw_sync(hw, mask);
866 if (status) {
867 hw_dbg(hw, "EEPROM read buffer - semaphore failed\n");
868 return status;
869 }
870
871 while (words) {
872 if (words > FW_MAX_READ_BUFFER_SIZE / 2)
873 words_to_read = FW_MAX_READ_BUFFER_SIZE / 2;
874 else
875 words_to_read = words;
876
877 buffer.hdr.req.cmd = FW_READ_SHADOW_RAM_CMD;
878 buffer.hdr.req.buf_lenh = 0;
879 buffer.hdr.req.buf_lenl = FW_READ_SHADOW_RAM_LEN;
880 buffer.hdr.req.checksum = FW_DEFAULT_CHECKSUM;
881
882 /* convert offset from words to bytes */
883 buffer.address = (__force u32)cpu_to_be32((offset +
884 current_word) * 2);
885 buffer.length = (__force u16)cpu_to_be16(words_to_read * 2);
886 buffer.pad2 = 0;
887 buffer.pad3 = 0;
888
889 status = ixgbe_hic_unlocked(hw, (u32 *)&buffer, sizeof(buffer),
890 IXGBE_HI_COMMAND_TIMEOUT);
891 if (status) {
892 hw_dbg(hw, "Host interface command failed\n");
893 goto out;
894 }
895
896 for (i = 0; i < words_to_read; i++) {
897 u32 reg = IXGBE_FLEX_MNG + (FW_NVM_DATA_OFFSET << 2) +
898 2 * i;
899 u32 value = IXGBE_READ_REG(hw, reg);
900
901 data[current_word] = (u16)(value & 0xffff);
902 current_word++;
903 i++;
904 if (i < words_to_read) {
905 value >>= 16;
906 data[current_word] = (u16)(value & 0xffff);
907 current_word++;
908 }
909 }
910 words -= words_to_read;
911 }
912
913out:
914 hw->mac.ops.release_swfw_sync(hw, mask);
915 return status;
916}
917
918/** ixgbe_checksum_ptr_x550 - Checksum one pointer region
919 * @hw: pointer to hardware structure
920 * @ptr: pointer offset in eeprom
921 * @size: size of section pointed by ptr, if 0 first word will be used as size
922 * @csum: address of checksum to update
923 *
924 * Returns error status for any failure
925 **/
926static s32 ixgbe_checksum_ptr_x550(struct ixgbe_hw *hw, u16 ptr,
927 u16 size, u16 *csum, u16 *buffer,
928 u32 buffer_size)
929{
930 u16 buf[256];
931 s32 status;
932 u16 length, bufsz, i, start;
933 u16 *local_buffer;
934
935 bufsz = ARRAY_SIZE(buf);
936
937 /* Read a chunk at the pointer location */
938 if (!buffer) {
939 status = ixgbe_read_ee_hostif_buffer_X550(hw, ptr, bufsz, buf);
940 if (status) {
941 hw_dbg(hw, "Failed to read EEPROM image\n");
942 return status;
943 }
944 local_buffer = buf;
945 } else {
946 if (buffer_size < ptr)
947 return -EINVAL;
948 local_buffer = &buffer[ptr];
949 }
950
951 if (size) {
952 start = 0;
953 length = size;
954 } else {
955 start = 1;
956 length = local_buffer[0];
957
958 /* Skip pointer section if length is invalid. */
959 if (length == 0xFFFF || length == 0 ||
960 (ptr + length) >= hw->eeprom.word_size)
961 return 0;
962 }
963
964 if (buffer && ((u32)start + (u32)length > buffer_size))
965 return -EINVAL;
966
967 for (i = start; length; i++, length--) {
968 if (i == bufsz && !buffer) {
969 ptr += bufsz;
970 i = 0;
971 if (length < bufsz)
972 bufsz = length;
973
974 /* Read a chunk at the pointer location */
975 status = ixgbe_read_ee_hostif_buffer_X550(hw, ptr,
976 bufsz, buf);
977 if (status) {
978 hw_dbg(hw, "Failed to read EEPROM image\n");
979 return status;
980 }
981 }
982 *csum += local_buffer[i];
983 }
984 return 0;
985}
986
987/** ixgbe_calc_checksum_X550 - Calculates and returns the checksum
988 * @hw: pointer to hardware structure
989 * @buffer: pointer to buffer containing calculated checksum
990 * @buffer_size: size of buffer
991 *
992 * Returns a negative error code on error, or the 16-bit checksum
993 **/
994static s32 ixgbe_calc_checksum_X550(struct ixgbe_hw *hw, u16 *buffer,
995 u32 buffer_size)
996{
997 u16 eeprom_ptrs[IXGBE_EEPROM_LAST_WORD + 1];
998 u16 *local_buffer;
999 s32 status;
1000 u16 checksum = 0;
1001 u16 pointer, i, size;
1002
1003 hw->eeprom.ops.init_params(hw);
1004
1005 if (!buffer) {
1006 /* Read pointer area */
1007 status = ixgbe_read_ee_hostif_buffer_X550(hw, 0,
1008 IXGBE_EEPROM_LAST_WORD + 1,
1009 eeprom_ptrs);
1010 if (status) {
1011 hw_dbg(hw, "Failed to read EEPROM image\n");
1012 return status;
1013 }
1014 local_buffer = eeprom_ptrs;
1015 } else {
1016 if (buffer_size < IXGBE_EEPROM_LAST_WORD)
1017 return -EINVAL;
1018 local_buffer = buffer;
1019 }
1020
1021 /* For X550 hardware include 0x0-0x41 in the checksum, skip the
1022 * checksum word itself
1023 */
1024 for (i = 0; i <= IXGBE_EEPROM_LAST_WORD; i++)
1025 if (i != IXGBE_EEPROM_CHECKSUM)
1026 checksum += local_buffer[i];
1027
1028 /* Include all data from pointers 0x3, 0x6-0xE. This excludes the
1029 * FW, PHY module, and PCIe Expansion/Option ROM pointers.
1030 */
1031 for (i = IXGBE_PCIE_ANALOG_PTR_X550; i < IXGBE_FW_PTR; i++) {
1032 if (i == IXGBE_PHY_PTR || i == IXGBE_OPTION_ROM_PTR)
1033 continue;
1034
1035 pointer = local_buffer[i];
1036
1037 /* Skip pointer section if the pointer is invalid. */
1038 if (pointer == 0xFFFF || pointer == 0 ||
1039 pointer >= hw->eeprom.word_size)
1040 continue;
1041
1042 switch (i) {
1043 case IXGBE_PCIE_GENERAL_PTR:
1044 size = IXGBE_IXGBE_PCIE_GENERAL_SIZE;
1045 break;
1046 case IXGBE_PCIE_CONFIG0_PTR:
1047 case IXGBE_PCIE_CONFIG1_PTR:
1048 size = IXGBE_PCIE_CONFIG_SIZE;
1049 break;
1050 default:
1051 size = 0;
1052 break;
1053 }
1054
1055 status = ixgbe_checksum_ptr_x550(hw, pointer, size, &checksum,
1056 buffer, buffer_size);
1057 if (status)
1058 return status;
1059 }
1060
1061 checksum = (u16)IXGBE_EEPROM_SUM - checksum;
1062
1063 return (s32)checksum;
1064}
1065
1066/** ixgbe_calc_eeprom_checksum_X550 - Calculates and returns the checksum
1067 * @hw: pointer to hardware structure
1068 *
1069 * Returns a negative error code on error, or the 16-bit checksum
1070 **/
1071static s32 ixgbe_calc_eeprom_checksum_X550(struct ixgbe_hw *hw)
1072{
1073 return ixgbe_calc_checksum_X550(hw, NULL, 0);
1074}
1075
1076/** ixgbe_read_ee_hostif_X550 - Read EEPROM word using a host interface command
1077 * @hw: pointer to hardware structure
1078 * @offset: offset of word in the EEPROM to read
1079 * @data: word read from the EEPROM
1080 *
1081 * Reads a 16 bit word from the EEPROM using the hostif.
1082 **/
1083static s32 ixgbe_read_ee_hostif_X550(struct ixgbe_hw *hw, u16 offset, u16 *data)
1084{
1085 const u32 mask = IXGBE_GSSR_SW_MNG_SM | IXGBE_GSSR_EEP_SM;
1086 struct ixgbe_hic_read_shadow_ram buffer;
1087 s32 status;
1088
1089 buffer.hdr.req.cmd = FW_READ_SHADOW_RAM_CMD;
1090 buffer.hdr.req.buf_lenh = 0;
1091 buffer.hdr.req.buf_lenl = FW_READ_SHADOW_RAM_LEN;
1092 buffer.hdr.req.checksum = FW_DEFAULT_CHECKSUM;
1093
1094 /* convert offset from words to bytes */
1095 buffer.address = (__force u32)cpu_to_be32(offset * 2);
1096 /* one word */
1097 buffer.length = (__force u16)cpu_to_be16(sizeof(u16));
1098
1099 status = hw->mac.ops.acquire_swfw_sync(hw, mask);
1100 if (status)
1101 return status;
1102
1103 status = ixgbe_hic_unlocked(hw, (u32 *)&buffer, sizeof(buffer),
1104 IXGBE_HI_COMMAND_TIMEOUT);
1105 if (!status) {
1106 *data = (u16)IXGBE_READ_REG_ARRAY(hw, IXGBE_FLEX_MNG,
1107 FW_NVM_DATA_OFFSET);
1108 }
1109
1110 hw->mac.ops.release_swfw_sync(hw, mask);
1111 return status;
1112}
1113
1114/** ixgbe_validate_eeprom_checksum_X550 - Validate EEPROM checksum
1115 * @hw: pointer to hardware structure
1116 * @checksum_val: calculated checksum
1117 *
1118 * Performs checksum calculation and validates the EEPROM checksum. If the
1119 * caller does not need checksum_val, the value can be NULL.
1120 **/
1121static s32 ixgbe_validate_eeprom_checksum_X550(struct ixgbe_hw *hw,
1122 u16 *checksum_val)
1123{
1124 s32 status;
1125 u16 checksum;
1126 u16 read_checksum = 0;
1127
1128 /* Read the first word from the EEPROM. If this times out or fails, do
1129 * not continue or we could be in for a very long wait while every
1130 * EEPROM read fails
1131 */
1132 status = hw->eeprom.ops.read(hw, 0, &checksum);
1133 if (status) {
1134 hw_dbg(hw, "EEPROM read failed\n");
1135 return status;
1136 }
1137
1138 status = hw->eeprom.ops.calc_checksum(hw);
1139 if (status < 0)
1140 return status;
1141
1142 checksum = (u16)(status & 0xffff);
1143
1144 status = ixgbe_read_ee_hostif_X550(hw, IXGBE_EEPROM_CHECKSUM,
1145 &read_checksum);
1146 if (status)
1147 return status;
1148
1149 /* Verify read checksum from EEPROM is the same as
1150 * calculated checksum
1151 */
1152 if (read_checksum != checksum) {
1153 status = -EIO;
1154 hw_dbg(hw, "Invalid EEPROM checksum");
1155 }
1156
1157 /* If the user cares, return the calculated checksum */
1158 if (checksum_val)
1159 *checksum_val = checksum;
1160
1161 return status;
1162}
1163
1164/** ixgbe_write_ee_hostif_X550 - Write EEPROM word using hostif
1165 * @hw: pointer to hardware structure
1166 * @offset: offset of word in the EEPROM to write
1167 * @data: word write to the EEPROM
1168 *
1169 * Write a 16 bit word to the EEPROM using the hostif.
1170 **/
1171static s32 ixgbe_write_ee_hostif_data_X550(struct ixgbe_hw *hw, u16 offset,
1172 u16 data)
1173{
1174 s32 status;
1175 struct ixgbe_hic_write_shadow_ram buffer;
1176
1177 buffer.hdr.req.cmd = FW_WRITE_SHADOW_RAM_CMD;
1178 buffer.hdr.req.buf_lenh = 0;
1179 buffer.hdr.req.buf_lenl = FW_WRITE_SHADOW_RAM_LEN;
1180 buffer.hdr.req.checksum = FW_DEFAULT_CHECKSUM;
1181
1182 /* one word */
1183 buffer.length = cpu_to_be16(sizeof(u16));
1184 buffer.data = data;
1185 buffer.address = cpu_to_be32(offset * 2);
1186
1187 status = ixgbe_host_interface_command(hw, &buffer, sizeof(buffer),
1188 IXGBE_HI_COMMAND_TIMEOUT, false);
1189 return status;
1190}
1191
1192/** ixgbe_write_ee_hostif_X550 - Write EEPROM word using hostif
1193 * @hw: pointer to hardware structure
1194 * @offset: offset of word in the EEPROM to write
1195 * @data: word write to the EEPROM
1196 *
1197 * Write a 16 bit word to the EEPROM using the hostif.
1198 **/
1199static s32 ixgbe_write_ee_hostif_X550(struct ixgbe_hw *hw, u16 offset, u16 data)
1200{
1201 s32 status = 0;
1202
1203 if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM) == 0) {
1204 status = ixgbe_write_ee_hostif_data_X550(hw, offset, data);
1205 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
1206 } else {
1207 hw_dbg(hw, "write ee hostif failed to get semaphore");
1208 status = -EBUSY;
1209 }
1210
1211 return status;
1212}
1213
1214/** ixgbe_update_flash_X550 - Instruct HW to copy EEPROM to Flash device
1215 * @hw: pointer to hardware structure
1216 *
1217 * Issue a shadow RAM dump to FW to copy EEPROM from shadow RAM to the flash.
1218 **/
1219static s32 ixgbe_update_flash_X550(struct ixgbe_hw *hw)
1220{
1221 s32 status = 0;
1222 union ixgbe_hic_hdr2 buffer;
1223
1224 buffer.req.cmd = FW_SHADOW_RAM_DUMP_CMD;
1225 buffer.req.buf_lenh = 0;
1226 buffer.req.buf_lenl = FW_SHADOW_RAM_DUMP_LEN;
1227 buffer.req.checksum = FW_DEFAULT_CHECKSUM;
1228
1229 status = ixgbe_host_interface_command(hw, &buffer, sizeof(buffer),
1230 IXGBE_HI_COMMAND_TIMEOUT, false);
1231 return status;
1232}
1233
1234/**
1235 * ixgbe_get_bus_info_X550em - Set PCI bus info
1236 * @hw: pointer to hardware structure
1237 *
1238 * Sets bus link width and speed to unknown because X550em is
1239 * not a PCI device.
1240 **/
1241static s32 ixgbe_get_bus_info_X550em(struct ixgbe_hw *hw)
1242{
1243 hw->bus.type = ixgbe_bus_type_internal;
1244 hw->bus.width = ixgbe_bus_width_unknown;
1245 hw->bus.speed = ixgbe_bus_speed_unknown;
1246
1247 hw->mac.ops.set_lan_id(hw);
1248
1249 return 0;
1250}
1251
1252/**
1253 * ixgbe_fw_recovery_mode_X550 - Check FW NVM recovery mode
1254 * @hw: pointer t hardware structure
1255 *
1256 * Returns true if in FW NVM recovery mode.
1257 */
1258static bool ixgbe_fw_recovery_mode_X550(struct ixgbe_hw *hw)
1259{
1260 u32 fwsm;
1261
1262 fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM(hw));
1263 return !!(fwsm & IXGBE_FWSM_FW_NVM_RECOVERY_MODE);
1264}
1265
1266/** ixgbe_disable_rx_x550 - Disable RX unit
1267 *
1268 * Enables the Rx DMA unit for x550
1269 **/
1270static void ixgbe_disable_rx_x550(struct ixgbe_hw *hw)
1271{
1272 u32 rxctrl, pfdtxgswc;
1273 s32 status;
1274 struct ixgbe_hic_disable_rxen fw_cmd;
1275
1276 rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
1277 if (rxctrl & IXGBE_RXCTRL_RXEN) {
1278 pfdtxgswc = IXGBE_READ_REG(hw, IXGBE_PFDTXGSWC);
1279 if (pfdtxgswc & IXGBE_PFDTXGSWC_VT_LBEN) {
1280 pfdtxgswc &= ~IXGBE_PFDTXGSWC_VT_LBEN;
1281 IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, pfdtxgswc);
1282 hw->mac.set_lben = true;
1283 } else {
1284 hw->mac.set_lben = false;
1285 }
1286
1287 fw_cmd.hdr.cmd = FW_DISABLE_RXEN_CMD;
1288 fw_cmd.hdr.buf_len = FW_DISABLE_RXEN_LEN;
1289 fw_cmd.hdr.checksum = FW_DEFAULT_CHECKSUM;
1290 fw_cmd.port_number = hw->bus.lan_id;
1291
1292 status = ixgbe_host_interface_command(hw, &fw_cmd,
1293 sizeof(struct ixgbe_hic_disable_rxen),
1294 IXGBE_HI_COMMAND_TIMEOUT, true);
1295
1296 /* If we fail - disable RX using register write */
1297 if (status) {
1298 rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
1299 if (rxctrl & IXGBE_RXCTRL_RXEN) {
1300 rxctrl &= ~IXGBE_RXCTRL_RXEN;
1301 IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl);
1302 }
1303 }
1304 }
1305}
1306
1307/** ixgbe_update_eeprom_checksum_X550 - Updates the EEPROM checksum and flash
1308 * @hw: pointer to hardware structure
1309 *
1310 * After writing EEPROM to shadow RAM using EEWR register, software calculates
1311 * checksum and updates the EEPROM and instructs the hardware to update
1312 * the flash.
1313 **/
1314static s32 ixgbe_update_eeprom_checksum_X550(struct ixgbe_hw *hw)
1315{
1316 s32 status;
1317 u16 checksum = 0;
1318
1319 /* Read the first word from the EEPROM. If this times out or fails, do
1320 * not continue or we could be in for a very long wait while every
1321 * EEPROM read fails
1322 */
1323 status = ixgbe_read_ee_hostif_X550(hw, 0, &checksum);
1324 if (status) {
1325 hw_dbg(hw, "EEPROM read failed\n");
1326 return status;
1327 }
1328
1329 status = ixgbe_calc_eeprom_checksum_X550(hw);
1330 if (status < 0)
1331 return status;
1332
1333 checksum = (u16)(status & 0xffff);
1334
1335 status = ixgbe_write_ee_hostif_X550(hw, IXGBE_EEPROM_CHECKSUM,
1336 checksum);
1337 if (status)
1338 return status;
1339
1340 status = ixgbe_update_flash_X550(hw);
1341
1342 return status;
1343}
1344
1345/** ixgbe_write_ee_hostif_buffer_X550 - Write EEPROM word(s) using hostif
1346 * @hw: pointer to hardware structure
1347 * @offset: offset of word in the EEPROM to write
1348 * @words: number of words
1349 * @data: word(s) write to the EEPROM
1350 *
1351 *
1352 * Write a 16 bit word(s) to the EEPROM using the hostif.
1353 **/
1354static s32 ixgbe_write_ee_hostif_buffer_X550(struct ixgbe_hw *hw,
1355 u16 offset, u16 words,
1356 u16 *data)
1357{
1358 s32 status = 0;
1359 u32 i = 0;
1360
1361 /* Take semaphore for the entire operation. */
1362 status = hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
1363 if (status) {
1364 hw_dbg(hw, "EEPROM write buffer - semaphore failed\n");
1365 return status;
1366 }
1367
1368 for (i = 0; i < words; i++) {
1369 status = ixgbe_write_ee_hostif_data_X550(hw, offset + i,
1370 data[i]);
1371 if (status) {
1372 hw_dbg(hw, "Eeprom buffered write failed\n");
1373 break;
1374 }
1375 }
1376
1377 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
1378
1379 return status;
1380}
1381
1382/** ixgbe_write_iosf_sb_reg_x550 - Writes a value to specified register of the
1383 * IOSF device
1384 *
1385 * @hw: pointer to hardware structure
1386 * @reg_addr: 32 bit PHY register to write
1387 * @device_type: 3 bit device type
1388 * @data: Data to write to the register
1389 **/
1390static s32 ixgbe_write_iosf_sb_reg_x550(struct ixgbe_hw *hw, u32 reg_addr,
1391 u32 device_type, u32 data)
1392{
1393 u32 gssr = IXGBE_GSSR_PHY1_SM | IXGBE_GSSR_PHY0_SM;
1394 u32 command, error;
1395 s32 ret;
1396
1397 ret = hw->mac.ops.acquire_swfw_sync(hw, gssr);
1398 if (ret)
1399 return ret;
1400
1401 ret = ixgbe_iosf_wait(hw, NULL);
1402 if (ret)
1403 goto out;
1404
1405 command = ((reg_addr << IXGBE_SB_IOSF_CTRL_ADDR_SHIFT) |
1406 (device_type << IXGBE_SB_IOSF_CTRL_TARGET_SELECT_SHIFT));
1407
1408 /* Write IOSF control register */
1409 IXGBE_WRITE_REG(hw, IXGBE_SB_IOSF_INDIRECT_CTRL, command);
1410
1411 /* Write IOSF data register */
1412 IXGBE_WRITE_REG(hw, IXGBE_SB_IOSF_INDIRECT_DATA, data);
1413
1414 ret = ixgbe_iosf_wait(hw, &command);
1415
1416 if ((command & IXGBE_SB_IOSF_CTRL_RESP_STAT_MASK) != 0) {
1417 error = FIELD_GET(IXGBE_SB_IOSF_CTRL_CMPL_ERR_MASK, command);
1418 hw_dbg(hw, "Failed to write, error %x\n", error);
1419 return -EIO;
1420 }
1421
1422out:
1423 hw->mac.ops.release_swfw_sync(hw, gssr);
1424 return ret;
1425}
1426
1427/**
1428 * ixgbe_setup_ixfi_x550em_x - MAC specific iXFI configuration
1429 * @hw: pointer to hardware structure
1430 *
1431 * iXfI configuration needed for ixgbe_mac_X550EM_x devices.
1432 **/
1433static s32 ixgbe_setup_ixfi_x550em_x(struct ixgbe_hw *hw)
1434{
1435 s32 status;
1436 u32 reg_val;
1437
1438 /* Disable training protocol FSM. */
1439 status = ixgbe_read_iosf_sb_reg_x550(hw,
1440 IXGBE_KRM_RX_TRN_LINKUP_CTRL(hw->bus.lan_id),
1441 IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val);
1442 if (status)
1443 return status;
1444
1445 reg_val |= IXGBE_KRM_RX_TRN_LINKUP_CTRL_CONV_WO_PROTOCOL;
1446 status = ixgbe_write_iosf_sb_reg_x550(hw,
1447 IXGBE_KRM_RX_TRN_LINKUP_CTRL(hw->bus.lan_id),
1448 IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1449 if (status)
1450 return status;
1451
1452 /* Disable Flex from training TXFFE. */
1453 status = ixgbe_read_iosf_sb_reg_x550(hw,
1454 IXGBE_KRM_DSP_TXFFE_STATE_4(hw->bus.lan_id),
1455 IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val);
1456 if (status)
1457 return status;
1458
1459 reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_C0_EN;
1460 reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_CP1_CN1_EN;
1461 reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_CO_ADAPT_EN;
1462 status = ixgbe_write_iosf_sb_reg_x550(hw,
1463 IXGBE_KRM_DSP_TXFFE_STATE_4(hw->bus.lan_id),
1464 IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1465 if (status)
1466 return status;
1467
1468 status = ixgbe_read_iosf_sb_reg_x550(hw,
1469 IXGBE_KRM_DSP_TXFFE_STATE_5(hw->bus.lan_id),
1470 IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val);
1471 if (status)
1472 return status;
1473
1474 reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_C0_EN;
1475 reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_CP1_CN1_EN;
1476 reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_CO_ADAPT_EN;
1477 status = ixgbe_write_iosf_sb_reg_x550(hw,
1478 IXGBE_KRM_DSP_TXFFE_STATE_5(hw->bus.lan_id),
1479 IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1480 if (status)
1481 return status;
1482
1483 /* Enable override for coefficients. */
1484 status = ixgbe_read_iosf_sb_reg_x550(hw,
1485 IXGBE_KRM_TX_COEFF_CTRL_1(hw->bus.lan_id),
1486 IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val);
1487 if (status)
1488 return status;
1489
1490 reg_val |= IXGBE_KRM_TX_COEFF_CTRL_1_OVRRD_EN;
1491 reg_val |= IXGBE_KRM_TX_COEFF_CTRL_1_CZERO_EN;
1492 reg_val |= IXGBE_KRM_TX_COEFF_CTRL_1_CPLUS1_OVRRD_EN;
1493 reg_val |= IXGBE_KRM_TX_COEFF_CTRL_1_CMINUS1_OVRRD_EN;
1494 status = ixgbe_write_iosf_sb_reg_x550(hw,
1495 IXGBE_KRM_TX_COEFF_CTRL_1(hw->bus.lan_id),
1496 IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1497 return status;
1498}
1499
1500/**
1501 * ixgbe_restart_an_internal_phy_x550em - restart autonegotiation for the
1502 * internal PHY
1503 * @hw: pointer to hardware structure
1504 **/
1505static s32 ixgbe_restart_an_internal_phy_x550em(struct ixgbe_hw *hw)
1506{
1507 s32 status;
1508 u32 link_ctrl;
1509
1510 /* Restart auto-negotiation. */
1511 status = hw->mac.ops.read_iosf_sb_reg(hw,
1512 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1513 IXGBE_SB_IOSF_TARGET_KR_PHY, &link_ctrl);
1514
1515 if (status) {
1516 hw_dbg(hw, "Auto-negotiation did not complete\n");
1517 return status;
1518 }
1519
1520 link_ctrl |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_RESTART;
1521 status = hw->mac.ops.write_iosf_sb_reg(hw,
1522 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1523 IXGBE_SB_IOSF_TARGET_KR_PHY, link_ctrl);
1524
1525 if (hw->mac.type == ixgbe_mac_x550em_a) {
1526 u32 flx_mask_st20;
1527
1528 /* Indicate to FW that AN restart has been asserted */
1529 status = hw->mac.ops.read_iosf_sb_reg(hw,
1530 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1531 IXGBE_SB_IOSF_TARGET_KR_PHY, &flx_mask_st20);
1532
1533 if (status) {
1534 hw_dbg(hw, "Auto-negotiation did not complete\n");
1535 return status;
1536 }
1537
1538 flx_mask_st20 |= IXGBE_KRM_PMD_FLX_MASK_ST20_FW_AN_RESTART;
1539 status = hw->mac.ops.write_iosf_sb_reg(hw,
1540 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1541 IXGBE_SB_IOSF_TARGET_KR_PHY, flx_mask_st20);
1542 }
1543
1544 return status;
1545}
1546
1547/** ixgbe_setup_ixfi_x550em - Configure the KR PHY for iXFI mode.
1548 * @hw: pointer to hardware structure
1549 * @speed: the link speed to force
1550 *
1551 * Configures the integrated KR PHY to use iXFI mode. Used to connect an
1552 * internal and external PHY at a specific speed, without autonegotiation.
1553 **/
1554static s32 ixgbe_setup_ixfi_x550em(struct ixgbe_hw *hw, ixgbe_link_speed *speed)
1555{
1556 struct ixgbe_mac_info *mac = &hw->mac;
1557 s32 status;
1558 u32 reg_val;
1559
1560 /* iXFI is only supported with X552 */
1561 if (mac->type != ixgbe_mac_X550EM_x)
1562 return -EIO;
1563
1564 /* Disable AN and force speed to 10G Serial. */
1565 status = ixgbe_read_iosf_sb_reg_x550(hw,
1566 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1567 IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val);
1568 if (status)
1569 return status;
1570
1571 reg_val &= ~IXGBE_KRM_LINK_CTRL_1_TETH_AN_ENABLE;
1572 reg_val &= ~IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_MASK;
1573
1574 /* Select forced link speed for internal PHY. */
1575 switch (*speed) {
1576 case IXGBE_LINK_SPEED_10GB_FULL:
1577 reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_10G;
1578 break;
1579 case IXGBE_LINK_SPEED_1GB_FULL:
1580 reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_1G;
1581 break;
1582 default:
1583 /* Other link speeds are not supported by internal KR PHY. */
1584 return -EINVAL;
1585 }
1586
1587 status = ixgbe_write_iosf_sb_reg_x550(hw,
1588 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1589 IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1590 if (status)
1591 return status;
1592
1593 /* Additional configuration needed for x550em_x */
1594 if (hw->mac.type == ixgbe_mac_X550EM_x) {
1595 status = ixgbe_setup_ixfi_x550em_x(hw);
1596 if (status)
1597 return status;
1598 }
1599
1600 /* Toggle port SW reset by AN reset. */
1601 status = ixgbe_restart_an_internal_phy_x550em(hw);
1602
1603 return status;
1604}
1605
1606/**
1607 * ixgbe_supported_sfp_modules_X550em - Check if SFP module type is supported
1608 * @hw: pointer to hardware structure
1609 * @linear: true if SFP module is linear
1610 */
1611static s32 ixgbe_supported_sfp_modules_X550em(struct ixgbe_hw *hw, bool *linear)
1612{
1613 switch (hw->phy.sfp_type) {
1614 case ixgbe_sfp_type_not_present:
1615 return -ENOENT;
1616 case ixgbe_sfp_type_da_cu_core0:
1617 case ixgbe_sfp_type_da_cu_core1:
1618 *linear = true;
1619 break;
1620 case ixgbe_sfp_type_srlr_core0:
1621 case ixgbe_sfp_type_srlr_core1:
1622 case ixgbe_sfp_type_da_act_lmt_core0:
1623 case ixgbe_sfp_type_da_act_lmt_core1:
1624 case ixgbe_sfp_type_1g_sx_core0:
1625 case ixgbe_sfp_type_1g_sx_core1:
1626 case ixgbe_sfp_type_1g_lx_core0:
1627 case ixgbe_sfp_type_1g_lx_core1:
1628 *linear = false;
1629 break;
1630 case ixgbe_sfp_type_unknown:
1631 case ixgbe_sfp_type_1g_cu_core0:
1632 case ixgbe_sfp_type_1g_cu_core1:
1633 default:
1634 return -EOPNOTSUPP;
1635 }
1636
1637 return 0;
1638}
1639
1640/**
1641 * ixgbe_setup_mac_link_sfp_x550em - Configure the KR PHY for SFP.
1642 * @hw: pointer to hardware structure
1643 * @speed: the link speed to force
1644 * @autoneg_wait_to_complete: unused
1645 *
1646 * Configures the extern PHY and the integrated KR PHY for SFP support.
1647 */
1648static s32
1649ixgbe_setup_mac_link_sfp_x550em(struct ixgbe_hw *hw,
1650 ixgbe_link_speed speed,
1651 __always_unused bool autoneg_wait_to_complete)
1652{
1653 s32 status;
1654 u16 reg_slice, reg_val;
1655 bool setup_linear = false;
1656
1657 /* Check if SFP module is supported and linear */
1658 status = ixgbe_supported_sfp_modules_X550em(hw, &setup_linear);
1659
1660 /* If no SFP module present, then return success. Return success since
1661 * there is no reason to configure CS4227 and SFP not present error is
1662 * not accepted in the setup MAC link flow.
1663 */
1664 if (status == -ENOENT)
1665 return 0;
1666
1667 if (status)
1668 return status;
1669
1670 /* Configure internal PHY for KR/KX. */
1671 ixgbe_setup_kr_speed_x550em(hw, speed);
1672
1673 /* Configure CS4227 LINE side to proper mode. */
1674 reg_slice = IXGBE_CS4227_LINE_SPARE24_LSB + (hw->bus.lan_id << 12);
1675 if (setup_linear)
1676 reg_val = (IXGBE_CS4227_EDC_MODE_CX1 << 1) | 0x1;
1677 else
1678 reg_val = (IXGBE_CS4227_EDC_MODE_SR << 1) | 0x1;
1679
1680 status = hw->link.ops.write_link(hw, hw->link.addr, reg_slice,
1681 reg_val);
1682
1683 return status;
1684}
1685
1686/**
1687 * ixgbe_setup_sfi_x550a - Configure the internal PHY for native SFI mode
1688 * @hw: pointer to hardware structure
1689 * @speed: the link speed to force
1690 *
1691 * Configures the integrated PHY for native SFI mode. Used to connect the
1692 * internal PHY directly to an SFP cage, without autonegotiation.
1693 **/
1694static s32 ixgbe_setup_sfi_x550a(struct ixgbe_hw *hw, ixgbe_link_speed *speed)
1695{
1696 struct ixgbe_mac_info *mac = &hw->mac;
1697 s32 status;
1698 u32 reg_val;
1699
1700 /* Disable all AN and force speed to 10G Serial. */
1701 status = mac->ops.read_iosf_sb_reg(hw,
1702 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1703 IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val);
1704 if (status)
1705 return status;
1706
1707 reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_AN_EN;
1708 reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_AN37_EN;
1709 reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SGMII_EN;
1710 reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_MASK;
1711
1712 /* Select forced link speed for internal PHY. */
1713 switch (*speed) {
1714 case IXGBE_LINK_SPEED_10GB_FULL:
1715 reg_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_10G;
1716 break;
1717 case IXGBE_LINK_SPEED_1GB_FULL:
1718 reg_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_1G;
1719 break;
1720 default:
1721 /* Other link speeds are not supported by internal PHY. */
1722 return -EINVAL;
1723 }
1724
1725 (void)mac->ops.write_iosf_sb_reg(hw,
1726 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1727 IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1728
1729 /* change mode enforcement rules to hybrid */
1730 (void)mac->ops.read_iosf_sb_reg(hw,
1731 IXGBE_KRM_FLX_TMRS_CTRL_ST31(hw->bus.lan_id),
1732 IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val);
1733 reg_val |= 0x0400;
1734
1735 (void)mac->ops.write_iosf_sb_reg(hw,
1736 IXGBE_KRM_FLX_TMRS_CTRL_ST31(hw->bus.lan_id),
1737 IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1738
1739 /* manually control the config */
1740 (void)mac->ops.read_iosf_sb_reg(hw,
1741 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1742 IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val);
1743 reg_val |= 0x20002240;
1744
1745 (void)mac->ops.write_iosf_sb_reg(hw,
1746 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1747 IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1748
1749 /* move the AN base page values */
1750 (void)mac->ops.read_iosf_sb_reg(hw,
1751 IXGBE_KRM_PCS_KX_AN(hw->bus.lan_id),
1752 IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val);
1753 reg_val |= 0x1;
1754
1755 (void)mac->ops.write_iosf_sb_reg(hw,
1756 IXGBE_KRM_PCS_KX_AN(hw->bus.lan_id),
1757 IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1758
1759 /* set the AN37 over CB mode */
1760 (void)mac->ops.read_iosf_sb_reg(hw,
1761 IXGBE_KRM_AN_CNTL_4(hw->bus.lan_id),
1762 IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val);
1763 reg_val |= 0x20000000;
1764
1765 (void)mac->ops.write_iosf_sb_reg(hw,
1766 IXGBE_KRM_AN_CNTL_4(hw->bus.lan_id),
1767 IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1768
1769 /* restart AN manually */
1770 (void)mac->ops.read_iosf_sb_reg(hw,
1771 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1772 IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val);
1773 reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_RESTART;
1774
1775 (void)mac->ops.write_iosf_sb_reg(hw,
1776 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1777 IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1778
1779 /* Toggle port SW reset by AN reset. */
1780 status = ixgbe_restart_an_internal_phy_x550em(hw);
1781
1782 return status;
1783}
1784
1785/**
1786 * ixgbe_setup_mac_link_sfp_n - Setup internal PHY for native SFP
1787 * @hw: pointer to hardware structure
1788 * @speed: link speed
1789 * @autoneg_wait_to_complete: unused
1790 *
1791 * Configure the integrated PHY for native SFP support.
1792 */
1793static s32
1794ixgbe_setup_mac_link_sfp_n(struct ixgbe_hw *hw, ixgbe_link_speed speed,
1795 __always_unused bool autoneg_wait_to_complete)
1796{
1797 bool setup_linear = false;
1798 u32 reg_phy_int;
1799 s32 ret_val;
1800
1801 /* Check if SFP module is supported and linear */
1802 ret_val = ixgbe_supported_sfp_modules_X550em(hw, &setup_linear);
1803
1804 /* If no SFP module present, then return success. Return success since
1805 * SFP not present error is not excepted in the setup MAC link flow.
1806 */
1807 if (ret_val == -ENOENT)
1808 return 0;
1809
1810 if (ret_val)
1811 return ret_val;
1812
1813 /* Configure internal PHY for native SFI based on module type */
1814 ret_val = hw->mac.ops.read_iosf_sb_reg(hw,
1815 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1816 IXGBE_SB_IOSF_TARGET_KR_PHY, ®_phy_int);
1817 if (ret_val)
1818 return ret_val;
1819
1820 reg_phy_int &= IXGBE_KRM_PMD_FLX_MASK_ST20_SFI_10G_DA;
1821 if (!setup_linear)
1822 reg_phy_int |= IXGBE_KRM_PMD_FLX_MASK_ST20_SFI_10G_SR;
1823
1824 ret_val = hw->mac.ops.write_iosf_sb_reg(hw,
1825 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1826 IXGBE_SB_IOSF_TARGET_KR_PHY, reg_phy_int);
1827 if (ret_val)
1828 return ret_val;
1829
1830 /* Setup SFI internal link. */
1831 return ixgbe_setup_sfi_x550a(hw, &speed);
1832}
1833
1834/**
1835 * ixgbe_setup_mac_link_sfp_x550a - Setup internal PHY for SFP
1836 * @hw: pointer to hardware structure
1837 * @speed: link speed
1838 * @autoneg_wait_to_complete: unused
1839 *
1840 * Configure the integrated PHY for SFP support.
1841 */
1842static s32
1843ixgbe_setup_mac_link_sfp_x550a(struct ixgbe_hw *hw, ixgbe_link_speed speed,
1844 __always_unused bool autoneg_wait_to_complete)
1845{
1846 u32 reg_slice, slice_offset;
1847 bool setup_linear = false;
1848 u16 reg_phy_ext;
1849 s32 ret_val;
1850
1851 /* Check if SFP module is supported and linear */
1852 ret_val = ixgbe_supported_sfp_modules_X550em(hw, &setup_linear);
1853
1854 /* If no SFP module present, then return success. Return success since
1855 * SFP not present error is not excepted in the setup MAC link flow.
1856 */
1857 if (ret_val == -ENOENT)
1858 return 0;
1859
1860 if (ret_val)
1861 return ret_val;
1862
1863 /* Configure internal PHY for KR/KX. */
1864 ixgbe_setup_kr_speed_x550em(hw, speed);
1865
1866 if (hw->phy.mdio.prtad == MDIO_PRTAD_NONE)
1867 return -EFAULT;
1868
1869 /* Get external PHY SKU id */
1870 ret_val = hw->phy.ops.read_reg(hw, IXGBE_CS4227_EFUSE_PDF_SKU,
1871 IXGBE_MDIO_ZERO_DEV_TYPE, ®_phy_ext);
1872 if (ret_val)
1873 return ret_val;
1874
1875 /* When configuring quad port CS4223, the MAC instance is part
1876 * of the slice offset.
1877 */
1878 if (reg_phy_ext == IXGBE_CS4223_SKU_ID)
1879 slice_offset = (hw->bus.lan_id +
1880 (hw->bus.instance_id << 1)) << 12;
1881 else
1882 slice_offset = hw->bus.lan_id << 12;
1883
1884 /* Configure CS4227/CS4223 LINE side to proper mode. */
1885 reg_slice = IXGBE_CS4227_LINE_SPARE24_LSB + slice_offset;
1886
1887 ret_val = hw->phy.ops.read_reg(hw, reg_slice,
1888 IXGBE_MDIO_ZERO_DEV_TYPE, ®_phy_ext);
1889 if (ret_val)
1890 return ret_val;
1891
1892 reg_phy_ext &= ~((IXGBE_CS4227_EDC_MODE_CX1 << 1) |
1893 (IXGBE_CS4227_EDC_MODE_SR << 1));
1894
1895 if (setup_linear)
1896 reg_phy_ext |= (IXGBE_CS4227_EDC_MODE_CX1 << 1) | 1;
1897 else
1898 reg_phy_ext |= (IXGBE_CS4227_EDC_MODE_SR << 1) | 1;
1899
1900 ret_val = hw->phy.ops.write_reg(hw, reg_slice,
1901 IXGBE_MDIO_ZERO_DEV_TYPE, reg_phy_ext);
1902 if (ret_val)
1903 return ret_val;
1904
1905 /* Flush previous write with a read */
1906 return hw->phy.ops.read_reg(hw, reg_slice,
1907 IXGBE_MDIO_ZERO_DEV_TYPE, ®_phy_ext);
1908}
1909
1910/**
1911 * ixgbe_setup_mac_link_t_X550em - Sets the auto advertised link speed
1912 * @hw: pointer to hardware structure
1913 * @speed: new link speed
1914 * @autoneg_wait: true when waiting for completion is needed
1915 *
1916 * Setup internal/external PHY link speed based on link speed, then set
1917 * external PHY auto advertised link speed.
1918 *
1919 * Returns error status for any failure
1920 **/
1921static s32 ixgbe_setup_mac_link_t_X550em(struct ixgbe_hw *hw,
1922 ixgbe_link_speed speed,
1923 bool autoneg_wait)
1924{
1925 s32 status;
1926 ixgbe_link_speed force_speed;
1927
1928 /* Setup internal/external PHY link speed to iXFI (10G), unless
1929 * only 1G is auto advertised then setup KX link.
1930 */
1931 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
1932 force_speed = IXGBE_LINK_SPEED_10GB_FULL;
1933 else
1934 force_speed = IXGBE_LINK_SPEED_1GB_FULL;
1935
1936 /* If X552 and internal link mode is XFI, then setup XFI internal link.
1937 */
1938 if (hw->mac.type == ixgbe_mac_X550EM_x &&
1939 !(hw->phy.nw_mng_if_sel & IXGBE_NW_MNG_IF_SEL_INT_PHY_MODE)) {
1940 status = ixgbe_setup_ixfi_x550em(hw, &force_speed);
1941
1942 if (status)
1943 return status;
1944 }
1945
1946 return hw->phy.ops.setup_link_speed(hw, speed, autoneg_wait);
1947}
1948
1949/** ixgbe_check_link_t_X550em - Determine link and speed status
1950 * @hw: pointer to hardware structure
1951 * @speed: pointer to link speed
1952 * @link_up: true when link is up
1953 * @link_up_wait_to_complete: bool used to wait for link up or not
1954 *
1955 * Check that both the MAC and X557 external PHY have link.
1956 **/
1957static s32 ixgbe_check_link_t_X550em(struct ixgbe_hw *hw,
1958 ixgbe_link_speed *speed,
1959 bool *link_up,
1960 bool link_up_wait_to_complete)
1961{
1962 u32 status;
1963 u16 i, autoneg_status;
1964
1965 if (hw->mac.ops.get_media_type(hw) != ixgbe_media_type_copper)
1966 return -EIO;
1967
1968 status = ixgbe_check_mac_link_generic(hw, speed, link_up,
1969 link_up_wait_to_complete);
1970
1971 /* If check link fails or MAC link is not up, then return */
1972 if (status || !(*link_up))
1973 return status;
1974
1975 /* MAC link is up, so check external PHY link.
1976 * Link status is latching low, and can only be used to detect link
1977 * drop, and not the current status of the link without performing
1978 * back-to-back reads.
1979 */
1980 for (i = 0; i < 2; i++) {
1981 status = hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN,
1982 &autoneg_status);
1983
1984 if (status)
1985 return status;
1986 }
1987
1988 /* If external PHY link is not up, then indicate link not up */
1989 if (!(autoneg_status & IXGBE_MDIO_AUTO_NEG_LINK_STATUS))
1990 *link_up = false;
1991
1992 return 0;
1993}
1994
1995/**
1996 * ixgbe_setup_sgmii - Set up link for sgmii
1997 * @hw: pointer to hardware structure
1998 * @speed: unused
1999 * @autoneg_wait_to_complete: unused
2000 */
2001static s32
2002ixgbe_setup_sgmii(struct ixgbe_hw *hw, __always_unused ixgbe_link_speed speed,
2003 __always_unused bool autoneg_wait_to_complete)
2004{
2005 struct ixgbe_mac_info *mac = &hw->mac;
2006 u32 lval, sval, flx_val;
2007 s32 rc;
2008
2009 rc = mac->ops.read_iosf_sb_reg(hw,
2010 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2011 IXGBE_SB_IOSF_TARGET_KR_PHY, &lval);
2012 if (rc)
2013 return rc;
2014
2015 lval &= ~IXGBE_KRM_LINK_CTRL_1_TETH_AN_ENABLE;
2016 lval &= ~IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_MASK;
2017 lval |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_SGMII_EN;
2018 lval |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_CLAUSE_37_EN;
2019 lval |= IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_1G;
2020 rc = mac->ops.write_iosf_sb_reg(hw,
2021 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2022 IXGBE_SB_IOSF_TARGET_KR_PHY, lval);
2023 if (rc)
2024 return rc;
2025
2026 rc = mac->ops.read_iosf_sb_reg(hw,
2027 IXGBE_KRM_SGMII_CTRL(hw->bus.lan_id),
2028 IXGBE_SB_IOSF_TARGET_KR_PHY, &sval);
2029 if (rc)
2030 return rc;
2031
2032 sval |= IXGBE_KRM_SGMII_CTRL_MAC_TAR_FORCE_10_D;
2033 sval |= IXGBE_KRM_SGMII_CTRL_MAC_TAR_FORCE_100_D;
2034 rc = mac->ops.write_iosf_sb_reg(hw,
2035 IXGBE_KRM_SGMII_CTRL(hw->bus.lan_id),
2036 IXGBE_SB_IOSF_TARGET_KR_PHY, sval);
2037 if (rc)
2038 return rc;
2039
2040 rc = mac->ops.read_iosf_sb_reg(hw,
2041 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2042 IXGBE_SB_IOSF_TARGET_KR_PHY, &flx_val);
2043 if (rc)
2044 return rc;
2045
2046 rc = mac->ops.read_iosf_sb_reg(hw,
2047 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2048 IXGBE_SB_IOSF_TARGET_KR_PHY, &flx_val);
2049 if (rc)
2050 return rc;
2051
2052 flx_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_MASK;
2053 flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_1G;
2054 flx_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_AN_EN;
2055 flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SGMII_EN;
2056 flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_AN37_EN;
2057
2058 rc = mac->ops.write_iosf_sb_reg(hw,
2059 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2060 IXGBE_SB_IOSF_TARGET_KR_PHY, flx_val);
2061 if (rc)
2062 return rc;
2063
2064 rc = ixgbe_restart_an_internal_phy_x550em(hw);
2065 return rc;
2066}
2067
2068/**
2069 * ixgbe_setup_sgmii_fw - Set up link for sgmii with firmware-controlled PHYs
2070 * @hw: pointer to hardware structure
2071 * @speed: the link speed to force
2072 * @autoneg_wait: true when waiting for completion is needed
2073 */
2074static s32 ixgbe_setup_sgmii_fw(struct ixgbe_hw *hw, ixgbe_link_speed speed,
2075 bool autoneg_wait)
2076{
2077 struct ixgbe_mac_info *mac = &hw->mac;
2078 u32 lval, sval, flx_val;
2079 s32 rc;
2080
2081 rc = mac->ops.read_iosf_sb_reg(hw,
2082 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2083 IXGBE_SB_IOSF_TARGET_KR_PHY, &lval);
2084 if (rc)
2085 return rc;
2086
2087 lval &= ~IXGBE_KRM_LINK_CTRL_1_TETH_AN_ENABLE;
2088 lval &= ~IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_MASK;
2089 lval |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_SGMII_EN;
2090 lval |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_CLAUSE_37_EN;
2091 lval &= ~IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_1G;
2092 rc = mac->ops.write_iosf_sb_reg(hw,
2093 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2094 IXGBE_SB_IOSF_TARGET_KR_PHY, lval);
2095 if (rc)
2096 return rc;
2097
2098 rc = mac->ops.read_iosf_sb_reg(hw,
2099 IXGBE_KRM_SGMII_CTRL(hw->bus.lan_id),
2100 IXGBE_SB_IOSF_TARGET_KR_PHY, &sval);
2101 if (rc)
2102 return rc;
2103
2104 sval &= ~IXGBE_KRM_SGMII_CTRL_MAC_TAR_FORCE_10_D;
2105 sval &= ~IXGBE_KRM_SGMII_CTRL_MAC_TAR_FORCE_100_D;
2106 rc = mac->ops.write_iosf_sb_reg(hw,
2107 IXGBE_KRM_SGMII_CTRL(hw->bus.lan_id),
2108 IXGBE_SB_IOSF_TARGET_KR_PHY, sval);
2109 if (rc)
2110 return rc;
2111
2112 rc = mac->ops.write_iosf_sb_reg(hw,
2113 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2114 IXGBE_SB_IOSF_TARGET_KR_PHY, lval);
2115 if (rc)
2116 return rc;
2117
2118 rc = mac->ops.read_iosf_sb_reg(hw,
2119 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2120 IXGBE_SB_IOSF_TARGET_KR_PHY, &flx_val);
2121 if (rc)
2122 return rc;
2123
2124 flx_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_MASK;
2125 flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_AN;
2126 flx_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_AN_EN;
2127 flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SGMII_EN;
2128 flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_AN37_EN;
2129
2130 rc = mac->ops.write_iosf_sb_reg(hw,
2131 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2132 IXGBE_SB_IOSF_TARGET_KR_PHY, flx_val);
2133 if (rc)
2134 return rc;
2135
2136 ixgbe_restart_an_internal_phy_x550em(hw);
2137
2138 return hw->phy.ops.setup_link_speed(hw, speed, autoneg_wait);
2139}
2140
2141/**
2142 * ixgbe_fc_autoneg_sgmii_x550em_a - Enable flow control IEEE clause 37
2143 * @hw: pointer to hardware structure
2144 *
2145 * Enable flow control according to IEEE clause 37.
2146 */
2147static void ixgbe_fc_autoneg_sgmii_x550em_a(struct ixgbe_hw *hw)
2148{
2149 u32 info[FW_PHY_ACT_DATA_COUNT] = { 0 };
2150 ixgbe_link_speed speed;
2151 s32 status = -EIO;
2152 bool link_up;
2153
2154 /* AN should have completed when the cable was plugged in.
2155 * Look for reasons to bail out. Bail out if:
2156 * - FC autoneg is disabled, or if
2157 * - link is not up.
2158 */
2159 if (hw->fc.disable_fc_autoneg)
2160 goto out;
2161
2162 hw->mac.ops.check_link(hw, &speed, &link_up, false);
2163 if (!link_up)
2164 goto out;
2165
2166 /* Check if auto-negotiation has completed */
2167 status = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_GET_LINK_INFO, &info);
2168 if (status || !(info[0] & FW_PHY_ACT_GET_LINK_INFO_AN_COMPLETE)) {
2169 status = -EIO;
2170 goto out;
2171 }
2172
2173 /* Negotiate the flow control */
2174 status = ixgbe_negotiate_fc(hw, info[0], info[0],
2175 FW_PHY_ACT_GET_LINK_INFO_FC_RX,
2176 FW_PHY_ACT_GET_LINK_INFO_FC_TX,
2177 FW_PHY_ACT_GET_LINK_INFO_LP_FC_RX,
2178 FW_PHY_ACT_GET_LINK_INFO_LP_FC_TX);
2179
2180out:
2181 if (!status) {
2182 hw->fc.fc_was_autonegged = true;
2183 } else {
2184 hw->fc.fc_was_autonegged = false;
2185 hw->fc.current_mode = hw->fc.requested_mode;
2186 }
2187}
2188
2189/** ixgbe_init_mac_link_ops_X550em_a - Init mac link function pointers
2190 * @hw: pointer to hardware structure
2191 **/
2192static void ixgbe_init_mac_link_ops_X550em_a(struct ixgbe_hw *hw)
2193{
2194 struct ixgbe_mac_info *mac = &hw->mac;
2195
2196 switch (mac->ops.get_media_type(hw)) {
2197 case ixgbe_media_type_fiber:
2198 mac->ops.setup_fc = NULL;
2199 mac->ops.fc_autoneg = ixgbe_fc_autoneg_fiber_x550em_a;
2200 break;
2201 case ixgbe_media_type_copper:
2202 if (hw->device_id != IXGBE_DEV_ID_X550EM_A_1G_T &&
2203 hw->device_id != IXGBE_DEV_ID_X550EM_A_1G_T_L) {
2204 mac->ops.setup_link = ixgbe_setup_mac_link_t_X550em;
2205 break;
2206 }
2207 mac->ops.fc_autoneg = ixgbe_fc_autoneg_sgmii_x550em_a;
2208 mac->ops.setup_fc = ixgbe_fc_autoneg_fw;
2209 mac->ops.setup_link = ixgbe_setup_sgmii_fw;
2210 mac->ops.check_link = ixgbe_check_mac_link_generic;
2211 break;
2212 case ixgbe_media_type_backplane:
2213 mac->ops.fc_autoneg = ixgbe_fc_autoneg_backplane_x550em_a;
2214 mac->ops.setup_fc = ixgbe_setup_fc_backplane_x550em_a;
2215 break;
2216 default:
2217 break;
2218 }
2219}
2220
2221/** ixgbe_init_mac_link_ops_X550em - init mac link function pointers
2222 * @hw: pointer to hardware structure
2223 **/
2224static void ixgbe_init_mac_link_ops_X550em(struct ixgbe_hw *hw)
2225{
2226 struct ixgbe_mac_info *mac = &hw->mac;
2227
2228 mac->ops.setup_fc = ixgbe_setup_fc_x550em;
2229
2230 switch (mac->ops.get_media_type(hw)) {
2231 case ixgbe_media_type_fiber:
2232 /* CS4227 does not support autoneg, so disable the laser control
2233 * functions for SFP+ fiber
2234 */
2235 mac->ops.disable_tx_laser = NULL;
2236 mac->ops.enable_tx_laser = NULL;
2237 mac->ops.flap_tx_laser = NULL;
2238 mac->ops.setup_link = ixgbe_setup_mac_link_multispeed_fiber;
2239 switch (hw->device_id) {
2240 case IXGBE_DEV_ID_X550EM_A_SFP_N:
2241 mac->ops.setup_mac_link = ixgbe_setup_mac_link_sfp_n;
2242 break;
2243 case IXGBE_DEV_ID_X550EM_A_SFP:
2244 mac->ops.setup_mac_link =
2245 ixgbe_setup_mac_link_sfp_x550a;
2246 break;
2247 default:
2248 mac->ops.setup_mac_link =
2249 ixgbe_setup_mac_link_sfp_x550em;
2250 break;
2251 }
2252 mac->ops.set_rate_select_speed =
2253 ixgbe_set_soft_rate_select_speed;
2254 break;
2255 case ixgbe_media_type_copper:
2256 if (hw->device_id == IXGBE_DEV_ID_X550EM_X_1G_T)
2257 break;
2258 mac->ops.setup_link = ixgbe_setup_mac_link_t_X550em;
2259 mac->ops.setup_fc = ixgbe_setup_fc_generic;
2260 mac->ops.check_link = ixgbe_check_link_t_X550em;
2261 break;
2262 case ixgbe_media_type_backplane:
2263 if (hw->device_id == IXGBE_DEV_ID_X550EM_A_SGMII ||
2264 hw->device_id == IXGBE_DEV_ID_X550EM_A_SGMII_L)
2265 mac->ops.setup_link = ixgbe_setup_sgmii;
2266 break;
2267 default:
2268 break;
2269 }
2270
2271 /* Additional modification for X550em_a devices */
2272 if (hw->mac.type == ixgbe_mac_x550em_a)
2273 ixgbe_init_mac_link_ops_X550em_a(hw);
2274}
2275
2276/** ixgbe_setup_sfp_modules_X550em - Setup SFP module
2277 * @hw: pointer to hardware structure
2278 */
2279static s32 ixgbe_setup_sfp_modules_X550em(struct ixgbe_hw *hw)
2280{
2281 s32 status;
2282 bool linear;
2283
2284 /* Check if SFP module is supported */
2285 status = ixgbe_supported_sfp_modules_X550em(hw, &linear);
2286 if (status)
2287 return status;
2288
2289 ixgbe_init_mac_link_ops_X550em(hw);
2290 hw->phy.ops.reset = NULL;
2291
2292 return 0;
2293}
2294
2295/** ixgbe_get_link_capabilities_x550em - Determines link capabilities
2296 * @hw: pointer to hardware structure
2297 * @speed: pointer to link speed
2298 * @autoneg: true when autoneg or autotry is enabled
2299 **/
2300static s32 ixgbe_get_link_capabilities_X550em(struct ixgbe_hw *hw,
2301 ixgbe_link_speed *speed,
2302 bool *autoneg)
2303{
2304 if (hw->phy.type == ixgbe_phy_fw) {
2305 *autoneg = true;
2306 *speed = hw->phy.speeds_supported;
2307 return 0;
2308 }
2309
2310 /* SFP */
2311 if (hw->phy.media_type == ixgbe_media_type_fiber) {
2312 /* CS4227 SFP must not enable auto-negotiation */
2313 *autoneg = false;
2314
2315 if (hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core0 ||
2316 hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core1 ||
2317 hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core0 ||
2318 hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core1) {
2319 *speed = IXGBE_LINK_SPEED_1GB_FULL;
2320 return 0;
2321 }
2322
2323 /* Link capabilities are based on SFP */
2324 if (hw->phy.multispeed_fiber)
2325 *speed = IXGBE_LINK_SPEED_10GB_FULL |
2326 IXGBE_LINK_SPEED_1GB_FULL;
2327 else
2328 *speed = IXGBE_LINK_SPEED_10GB_FULL;
2329 } else {
2330 switch (hw->phy.type) {
2331 case ixgbe_phy_x550em_kx4:
2332 *speed = IXGBE_LINK_SPEED_1GB_FULL |
2333 IXGBE_LINK_SPEED_2_5GB_FULL |
2334 IXGBE_LINK_SPEED_10GB_FULL;
2335 break;
2336 case ixgbe_phy_x550em_xfi:
2337 *speed = IXGBE_LINK_SPEED_1GB_FULL |
2338 IXGBE_LINK_SPEED_10GB_FULL;
2339 break;
2340 case ixgbe_phy_ext_1g_t:
2341 case ixgbe_phy_sgmii:
2342 *speed = IXGBE_LINK_SPEED_1GB_FULL;
2343 break;
2344 case ixgbe_phy_x550em_kr:
2345 if (hw->mac.type == ixgbe_mac_x550em_a) {
2346 /* check different backplane modes */
2347 if (hw->phy.nw_mng_if_sel &
2348 IXGBE_NW_MNG_IF_SEL_PHY_SPEED_2_5G) {
2349 *speed = IXGBE_LINK_SPEED_2_5GB_FULL;
2350 break;
2351 } else if (hw->device_id ==
2352 IXGBE_DEV_ID_X550EM_A_KR_L) {
2353 *speed = IXGBE_LINK_SPEED_1GB_FULL;
2354 break;
2355 }
2356 }
2357 fallthrough;
2358 default:
2359 *speed = IXGBE_LINK_SPEED_10GB_FULL |
2360 IXGBE_LINK_SPEED_1GB_FULL;
2361 break;
2362 }
2363 *autoneg = true;
2364 }
2365 return 0;
2366}
2367
2368/**
2369 * ixgbe_get_lasi_ext_t_x550em - Determime external Base T PHY interrupt cause
2370 * @hw: pointer to hardware structure
2371 * @lsc: pointer to boolean flag which indicates whether external Base T
2372 * PHY interrupt is lsc
2373 * @is_overtemp: indicate whether an overtemp event encountered
2374 *
2375 * Determime if external Base T PHY interrupt cause is high temperature
2376 * failure alarm or link status change.
2377 **/
2378static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc,
2379 bool *is_overtemp)
2380{
2381 u32 status;
2382 u16 reg;
2383
2384 *is_overtemp = false;
2385 *lsc = false;
2386
2387 /* Vendor alarm triggered */
2388 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_CHIP_STD_INT_FLAG,
2389 MDIO_MMD_VEND1,
2390 ®);
2391
2392 if (status || !(reg & IXGBE_MDIO_GLOBAL_VEN_ALM_INT_EN))
2393 return status;
2394
2395 /* Vendor Auto-Neg alarm triggered or Global alarm 1 triggered */
2396 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_VEN_FLAG,
2397 MDIO_MMD_VEND1,
2398 ®);
2399
2400 if (status || !(reg & (IXGBE_MDIO_GLOBAL_AN_VEN_ALM_INT_EN |
2401 IXGBE_MDIO_GLOBAL_ALARM_1_INT)))
2402 return status;
2403
2404 /* Global alarm triggered */
2405 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_ALARM_1,
2406 MDIO_MMD_VEND1,
2407 ®);
2408
2409 if (status)
2410 return status;
2411
2412 /* If high temperature failure, then return over temp error and exit */
2413 if (reg & IXGBE_MDIO_GLOBAL_ALM_1_HI_TMP_FAIL) {
2414 /* power down the PHY in case the PHY FW didn't already */
2415 ixgbe_set_copper_phy_power(hw, false);
2416 *is_overtemp = true;
2417 return -EIO;
2418 }
2419 if (reg & IXGBE_MDIO_GLOBAL_ALM_1_DEV_FAULT) {
2420 /* device fault alarm triggered */
2421 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_FAULT_MSG,
2422 MDIO_MMD_VEND1,
2423 ®);
2424 if (status)
2425 return status;
2426
2427 /* if device fault was due to high temp alarm handle and exit */
2428 if (reg == IXGBE_MDIO_GLOBAL_FAULT_MSG_HI_TMP) {
2429 /* power down the PHY in case the PHY FW didn't */
2430 ixgbe_set_copper_phy_power(hw, false);
2431 *is_overtemp = true;
2432 return -EIO;
2433 }
2434 }
2435
2436 /* Vendor alarm 2 triggered */
2437 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_CHIP_STD_INT_FLAG,
2438 MDIO_MMD_AN, ®);
2439
2440 if (status || !(reg & IXGBE_MDIO_GLOBAL_STD_ALM2_INT))
2441 return status;
2442
2443 /* link connect/disconnect event occurred */
2444 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_VENDOR_TX_ALARM2,
2445 MDIO_MMD_AN, ®);
2446
2447 if (status)
2448 return status;
2449
2450 /* Indicate LSC */
2451 if (reg & IXGBE_MDIO_AUTO_NEG_VEN_LSC)
2452 *lsc = true;
2453
2454 return 0;
2455}
2456
2457/**
2458 * ixgbe_enable_lasi_ext_t_x550em - Enable external Base T PHY interrupts
2459 * @hw: pointer to hardware structure
2460 *
2461 * Enable link status change and temperature failure alarm for the external
2462 * Base T PHY
2463 *
2464 * Returns PHY access status
2465 **/
2466static s32 ixgbe_enable_lasi_ext_t_x550em(struct ixgbe_hw *hw)
2467{
2468 bool lsc, overtemp;
2469 u32 status;
2470 u16 reg;
2471
2472 /* Clear interrupt flags */
2473 status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc, &overtemp);
2474
2475 /* Enable link status change alarm */
2476
2477 /* Enable the LASI interrupts on X552 devices to receive notifications
2478 * of the link configurations of the external PHY and correspondingly
2479 * support the configuration of the internal iXFI link, since iXFI does
2480 * not support auto-negotiation. This is not required for X553 devices
2481 * having KR support, which performs auto-negotiations and which is used
2482 * as the internal link to the external PHY. Hence adding a check here
2483 * to avoid enabling LASI interrupts for X553 devices.
2484 */
2485 if (hw->mac.type != ixgbe_mac_x550em_a) {
2486 status = hw->phy.ops.read_reg(hw,
2487 IXGBE_MDIO_PMA_TX_VEN_LASI_INT_MASK,
2488 MDIO_MMD_AN, ®);
2489 if (status)
2490 return status;
2491
2492 reg |= IXGBE_MDIO_PMA_TX_VEN_LASI_INT_EN;
2493
2494 status = hw->phy.ops.write_reg(hw,
2495 IXGBE_MDIO_PMA_TX_VEN_LASI_INT_MASK,
2496 MDIO_MMD_AN, reg);
2497 if (status)
2498 return status;
2499 }
2500
2501 /* Enable high temperature failure and global fault alarms */
2502 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_INT_MASK,
2503 MDIO_MMD_VEND1,
2504 ®);
2505 if (status)
2506 return status;
2507
2508 reg |= (IXGBE_MDIO_GLOBAL_INT_HI_TEMP_EN |
2509 IXGBE_MDIO_GLOBAL_INT_DEV_FAULT_EN);
2510
2511 status = hw->phy.ops.write_reg(hw, IXGBE_MDIO_GLOBAL_INT_MASK,
2512 MDIO_MMD_VEND1,
2513 reg);
2514 if (status)
2515 return status;
2516
2517 /* Enable vendor Auto-Neg alarm and Global Interrupt Mask 1 alarm */
2518 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_VEN_MASK,
2519 MDIO_MMD_VEND1,
2520 ®);
2521 if (status)
2522 return status;
2523
2524 reg |= (IXGBE_MDIO_GLOBAL_AN_VEN_ALM_INT_EN |
2525 IXGBE_MDIO_GLOBAL_ALARM_1_INT);
2526
2527 status = hw->phy.ops.write_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_VEN_MASK,
2528 MDIO_MMD_VEND1,
2529 reg);
2530 if (status)
2531 return status;
2532
2533 /* Enable chip-wide vendor alarm */
2534 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_STD_MASK,
2535 MDIO_MMD_VEND1,
2536 ®);
2537 if (status)
2538 return status;
2539
2540 reg |= IXGBE_MDIO_GLOBAL_VEN_ALM_INT_EN;
2541
2542 status = hw->phy.ops.write_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_STD_MASK,
2543 MDIO_MMD_VEND1,
2544 reg);
2545
2546 return status;
2547}
2548
2549/**
2550 * ixgbe_handle_lasi_ext_t_x550em - Handle external Base T PHY interrupt
2551 * @hw: pointer to hardware structure
2552 * @is_overtemp: indicate whether an overtemp event encountered
2553 *
2554 * Handle external Base T PHY interrupt. If high temperature
2555 * failure alarm then return error, else if link status change
2556 * then setup internal/external PHY link
2557 **/
2558static s32 ixgbe_handle_lasi_ext_t_x550em(struct ixgbe_hw *hw,
2559 bool *is_overtemp)
2560{
2561 struct ixgbe_phy_info *phy = &hw->phy;
2562 bool lsc;
2563 u32 status;
2564
2565 status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc, is_overtemp);
2566 if (status)
2567 return status;
2568
2569 if (lsc && phy->ops.setup_internal_link)
2570 return phy->ops.setup_internal_link(hw);
2571
2572 return 0;
2573}
2574
2575/**
2576 * ixgbe_setup_kr_speed_x550em - Configure the KR PHY for link speed.
2577 * @hw: pointer to hardware structure
2578 * @speed: link speed
2579 *
2580 * Configures the integrated KR PHY.
2581 **/
2582static s32 ixgbe_setup_kr_speed_x550em(struct ixgbe_hw *hw,
2583 ixgbe_link_speed speed)
2584{
2585 s32 status;
2586 u32 reg_val;
2587
2588 status = hw->mac.ops.read_iosf_sb_reg(hw,
2589 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2590 IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val);
2591 if (status)
2592 return status;
2593
2594 reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_ENABLE;
2595 reg_val &= ~(IXGBE_KRM_LINK_CTRL_1_TETH_AN_CAP_KR |
2596 IXGBE_KRM_LINK_CTRL_1_TETH_AN_CAP_KX);
2597
2598 /* Advertise 10G support. */
2599 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
2600 reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_CAP_KR;
2601
2602 /* Advertise 1G support. */
2603 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
2604 reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_CAP_KX;
2605
2606 status = hw->mac.ops.write_iosf_sb_reg(hw,
2607 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2608 IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
2609
2610 if (hw->mac.type == ixgbe_mac_x550em_a) {
2611 /* Set lane mode to KR auto negotiation */
2612 status = hw->mac.ops.read_iosf_sb_reg(hw,
2613 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2614 IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val);
2615
2616 if (status)
2617 return status;
2618
2619 reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_MASK;
2620 reg_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_AN;
2621 reg_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_AN_EN;
2622 reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_AN37_EN;
2623 reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SGMII_EN;
2624
2625 status = hw->mac.ops.write_iosf_sb_reg(hw,
2626 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2627 IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
2628 }
2629
2630 return ixgbe_restart_an_internal_phy_x550em(hw);
2631}
2632
2633/**
2634 * ixgbe_setup_kr_x550em - Configure the KR PHY
2635 * @hw: pointer to hardware structure
2636 **/
2637static s32 ixgbe_setup_kr_x550em(struct ixgbe_hw *hw)
2638{
2639 /* leave link alone for 2.5G */
2640 if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_2_5GB_FULL)
2641 return 0;
2642
2643 if (ixgbe_check_reset_blocked(hw))
2644 return 0;
2645
2646 return ixgbe_setup_kr_speed_x550em(hw, hw->phy.autoneg_advertised);
2647}
2648
2649/** ixgbe_ext_phy_t_x550em_get_link - Get ext phy link status
2650 * @hw: address of hardware structure
2651 * @link_up: address of boolean to indicate link status
2652 *
2653 * Returns error code if unable to get link status.
2654 **/
2655static s32 ixgbe_ext_phy_t_x550em_get_link(struct ixgbe_hw *hw, bool *link_up)
2656{
2657 u32 ret;
2658 u16 autoneg_status;
2659
2660 *link_up = false;
2661
2662 /* read this twice back to back to indicate current status */
2663 ret = hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN,
2664 &autoneg_status);
2665 if (ret)
2666 return ret;
2667
2668 ret = hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN,
2669 &autoneg_status);
2670 if (ret)
2671 return ret;
2672
2673 *link_up = !!(autoneg_status & IXGBE_MDIO_AUTO_NEG_LINK_STATUS);
2674
2675 return 0;
2676}
2677
2678/** ixgbe_setup_internal_phy_t_x550em - Configure KR PHY to X557 link
2679 * @hw: point to hardware structure
2680 *
2681 * Configures the link between the integrated KR PHY and the external X557 PHY
2682 * The driver will call this function when it gets a link status change
2683 * interrupt from the X557 PHY. This function configures the link speed
2684 * between the PHYs to match the link speed of the BASE-T link.
2685 *
2686 * A return of a non-zero value indicates an error, and the base driver should
2687 * not report link up.
2688 **/
2689static s32 ixgbe_setup_internal_phy_t_x550em(struct ixgbe_hw *hw)
2690{
2691 ixgbe_link_speed force_speed;
2692 bool link_up;
2693 u32 status;
2694 u16 speed;
2695
2696 if (hw->mac.ops.get_media_type(hw) != ixgbe_media_type_copper)
2697 return -EIO;
2698
2699 if (!(hw->mac.type == ixgbe_mac_X550EM_x &&
2700 !(hw->phy.nw_mng_if_sel & IXGBE_NW_MNG_IF_SEL_INT_PHY_MODE))) {
2701 speed = IXGBE_LINK_SPEED_10GB_FULL |
2702 IXGBE_LINK_SPEED_1GB_FULL;
2703 return ixgbe_setup_kr_speed_x550em(hw, speed);
2704 }
2705
2706 /* If link is not up, then there is no setup necessary so return */
2707 status = ixgbe_ext_phy_t_x550em_get_link(hw, &link_up);
2708 if (status)
2709 return status;
2710
2711 if (!link_up)
2712 return 0;
2713
2714 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_VENDOR_STAT,
2715 MDIO_MMD_AN,
2716 &speed);
2717 if (status)
2718 return status;
2719
2720 /* If link is not still up, then no setup is necessary so return */
2721 status = ixgbe_ext_phy_t_x550em_get_link(hw, &link_up);
2722 if (status)
2723 return status;
2724
2725 if (!link_up)
2726 return 0;
2727
2728 /* clear everything but the speed and duplex bits */
2729 speed &= IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_MASK;
2730
2731 switch (speed) {
2732 case IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_10GB_FULL:
2733 force_speed = IXGBE_LINK_SPEED_10GB_FULL;
2734 break;
2735 case IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_1GB_FULL:
2736 force_speed = IXGBE_LINK_SPEED_1GB_FULL;
2737 break;
2738 default:
2739 /* Internal PHY does not support anything else */
2740 return -EINVAL;
2741 }
2742
2743 return ixgbe_setup_ixfi_x550em(hw, &force_speed);
2744}
2745
2746/** ixgbe_reset_phy_t_X550em - Performs X557 PHY reset and enables LASI
2747 * @hw: pointer to hardware structure
2748 **/
2749static s32 ixgbe_reset_phy_t_X550em(struct ixgbe_hw *hw)
2750{
2751 s32 status;
2752
2753 status = ixgbe_reset_phy_generic(hw);
2754
2755 if (status)
2756 return status;
2757
2758 /* Configure Link Status Alarm and Temperature Threshold interrupts */
2759 return ixgbe_enable_lasi_ext_t_x550em(hw);
2760}
2761
2762/**
2763 * ixgbe_led_on_t_x550em - Turns on the software controllable LEDs.
2764 * @hw: pointer to hardware structure
2765 * @led_idx: led number to turn on
2766 **/
2767static s32 ixgbe_led_on_t_x550em(struct ixgbe_hw *hw, u32 led_idx)
2768{
2769 u16 phy_data;
2770
2771 if (led_idx >= IXGBE_X557_MAX_LED_INDEX)
2772 return -EINVAL;
2773
2774 /* To turn on the LED, set mode to ON. */
2775 hw->phy.ops.read_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx,
2776 MDIO_MMD_VEND1, &phy_data);
2777 phy_data |= IXGBE_X557_LED_MANUAL_SET_MASK;
2778 hw->phy.ops.write_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx,
2779 MDIO_MMD_VEND1, phy_data);
2780
2781 return 0;
2782}
2783
2784/**
2785 * ixgbe_led_off_t_x550em - Turns off the software controllable LEDs.
2786 * @hw: pointer to hardware structure
2787 * @led_idx: led number to turn off
2788 **/
2789static s32 ixgbe_led_off_t_x550em(struct ixgbe_hw *hw, u32 led_idx)
2790{
2791 u16 phy_data;
2792
2793 if (led_idx >= IXGBE_X557_MAX_LED_INDEX)
2794 return -EINVAL;
2795
2796 /* To turn on the LED, set mode to ON. */
2797 hw->phy.ops.read_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx,
2798 MDIO_MMD_VEND1, &phy_data);
2799 phy_data &= ~IXGBE_X557_LED_MANUAL_SET_MASK;
2800 hw->phy.ops.write_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx,
2801 MDIO_MMD_VEND1, phy_data);
2802
2803 return 0;
2804}
2805
2806/**
2807 * ixgbe_set_fw_drv_ver_x550 - Sends driver version to firmware
2808 * @hw: pointer to the HW structure
2809 * @maj: driver version major number
2810 * @min: driver version minor number
2811 * @build: driver version build number
2812 * @sub: driver version sub build number
2813 * @len: length of driver_ver string
2814 * @driver_ver: driver string
2815 *
2816 * Sends driver version number to firmware through the manageability
2817 * block. On success return 0
2818 * else returns -EBUSY when encountering an error acquiring
2819 * semaphore, -EIO when command fails or -ENIVAL when incorrect
2820 * params passed.
2821 **/
2822static s32 ixgbe_set_fw_drv_ver_x550(struct ixgbe_hw *hw, u8 maj, u8 min,
2823 u8 build, u8 sub, u16 len,
2824 const char *driver_ver)
2825{
2826 struct ixgbe_hic_drv_info2 fw_cmd;
2827 s32 ret_val;
2828 int i;
2829
2830 if (!len || !driver_ver || (len > sizeof(fw_cmd.driver_string)))
2831 return -EINVAL;
2832
2833 fw_cmd.hdr.cmd = FW_CEM_CMD_DRIVER_INFO;
2834 fw_cmd.hdr.buf_len = FW_CEM_CMD_DRIVER_INFO_LEN + len;
2835 fw_cmd.hdr.cmd_or_resp.cmd_resv = FW_CEM_CMD_RESERVED;
2836 fw_cmd.port_num = (u8)hw->bus.func;
2837 fw_cmd.ver_maj = maj;
2838 fw_cmd.ver_min = min;
2839 fw_cmd.ver_build = build;
2840 fw_cmd.ver_sub = sub;
2841 fw_cmd.hdr.checksum = 0;
2842 memcpy(fw_cmd.driver_string, driver_ver, len);
2843 fw_cmd.hdr.checksum = ixgbe_calculate_checksum((u8 *)&fw_cmd,
2844 (FW_CEM_HDR_LEN + fw_cmd.hdr.buf_len));
2845
2846 for (i = 0; i <= FW_CEM_MAX_RETRIES; i++) {
2847 ret_val = ixgbe_host_interface_command(hw, (u32 *)&fw_cmd,
2848 sizeof(fw_cmd),
2849 IXGBE_HI_COMMAND_TIMEOUT,
2850 true);
2851 if (ret_val)
2852 continue;
2853
2854 if (fw_cmd.hdr.cmd_or_resp.ret_status !=
2855 FW_CEM_RESP_STATUS_SUCCESS)
2856 return -EIO;
2857 return 0;
2858 }
2859
2860 return ret_val;
2861}
2862
2863/** ixgbe_get_lcd_x550em - Determine lowest common denominator
2864 * @hw: pointer to hardware structure
2865 * @lcd_speed: pointer to lowest common link speed
2866 *
2867 * Determine lowest common link speed with link partner.
2868 **/
2869static s32 ixgbe_get_lcd_t_x550em(struct ixgbe_hw *hw,
2870 ixgbe_link_speed *lcd_speed)
2871{
2872 u16 an_lp_status;
2873 s32 status;
2874 u16 word = hw->eeprom.ctrl_word_3;
2875
2876 *lcd_speed = IXGBE_LINK_SPEED_UNKNOWN;
2877
2878 status = hw->phy.ops.read_reg(hw, IXGBE_AUTO_NEG_LP_STATUS,
2879 MDIO_MMD_AN,
2880 &an_lp_status);
2881 if (status)
2882 return status;
2883
2884 /* If link partner advertised 1G, return 1G */
2885 if (an_lp_status & IXGBE_AUTO_NEG_LP_1000BASE_CAP) {
2886 *lcd_speed = IXGBE_LINK_SPEED_1GB_FULL;
2887 return status;
2888 }
2889
2890 /* If 10G disabled for LPLU via NVM D10GMP, then return no valid LCD */
2891 if ((hw->bus.lan_id && (word & NVM_INIT_CTRL_3_D10GMP_PORT1)) ||
2892 (word & NVM_INIT_CTRL_3_D10GMP_PORT0))
2893 return status;
2894
2895 /* Link partner not capable of lower speeds, return 10G */
2896 *lcd_speed = IXGBE_LINK_SPEED_10GB_FULL;
2897 return status;
2898}
2899
2900/**
2901 * ixgbe_setup_fc_x550em - Set up flow control
2902 * @hw: pointer to hardware structure
2903 */
2904static s32 ixgbe_setup_fc_x550em(struct ixgbe_hw *hw)
2905{
2906 bool pause, asm_dir;
2907 u32 reg_val;
2908 s32 rc = 0;
2909
2910 /* Validate the requested mode */
2911 if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
2912 hw_err(hw, "ixgbe_fc_rx_pause not valid in strict IEEE mode\n");
2913 return -EINVAL;
2914 }
2915
2916 /* 10gig parts do not have a word in the EEPROM to determine the
2917 * default flow control setting, so we explicitly set it to full.
2918 */
2919 if (hw->fc.requested_mode == ixgbe_fc_default)
2920 hw->fc.requested_mode = ixgbe_fc_full;
2921
2922 /* Determine PAUSE and ASM_DIR bits. */
2923 switch (hw->fc.requested_mode) {
2924 case ixgbe_fc_none:
2925 pause = false;
2926 asm_dir = false;
2927 break;
2928 case ixgbe_fc_tx_pause:
2929 pause = false;
2930 asm_dir = true;
2931 break;
2932 case ixgbe_fc_rx_pause:
2933 /* Rx Flow control is enabled and Tx Flow control is
2934 * disabled by software override. Since there really
2935 * isn't a way to advertise that we are capable of RX
2936 * Pause ONLY, we will advertise that we support both
2937 * symmetric and asymmetric Rx PAUSE, as such we fall
2938 * through to the fc_full statement. Later, we will
2939 * disable the adapter's ability to send PAUSE frames.
2940 */
2941 fallthrough;
2942 case ixgbe_fc_full:
2943 pause = true;
2944 asm_dir = true;
2945 break;
2946 default:
2947 hw_err(hw, "Flow control param set incorrectly\n");
2948 return -EIO;
2949 }
2950
2951 switch (hw->device_id) {
2952 case IXGBE_DEV_ID_X550EM_X_KR:
2953 case IXGBE_DEV_ID_X550EM_A_KR:
2954 case IXGBE_DEV_ID_X550EM_A_KR_L:
2955 rc = hw->mac.ops.read_iosf_sb_reg(hw,
2956 IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
2957 IXGBE_SB_IOSF_TARGET_KR_PHY,
2958 ®_val);
2959 if (rc)
2960 return rc;
2961
2962 reg_val &= ~(IXGBE_KRM_AN_CNTL_1_SYM_PAUSE |
2963 IXGBE_KRM_AN_CNTL_1_ASM_PAUSE);
2964 if (pause)
2965 reg_val |= IXGBE_KRM_AN_CNTL_1_SYM_PAUSE;
2966 if (asm_dir)
2967 reg_val |= IXGBE_KRM_AN_CNTL_1_ASM_PAUSE;
2968 rc = hw->mac.ops.write_iosf_sb_reg(hw,
2969 IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
2970 IXGBE_SB_IOSF_TARGET_KR_PHY,
2971 reg_val);
2972
2973 /* This device does not fully support AN. */
2974 hw->fc.disable_fc_autoneg = true;
2975 break;
2976 case IXGBE_DEV_ID_X550EM_X_XFI:
2977 hw->fc.disable_fc_autoneg = true;
2978 break;
2979 default:
2980 break;
2981 }
2982 return rc;
2983}
2984
2985/**
2986 * ixgbe_fc_autoneg_backplane_x550em_a - Enable flow control IEEE clause 37
2987 * @hw: pointer to hardware structure
2988 **/
2989static void ixgbe_fc_autoneg_backplane_x550em_a(struct ixgbe_hw *hw)
2990{
2991 u32 link_s1, lp_an_page_low, an_cntl_1;
2992 ixgbe_link_speed speed;
2993 s32 status = -EIO;
2994 bool link_up;
2995
2996 /* AN should have completed when the cable was plugged in.
2997 * Look for reasons to bail out. Bail out if:
2998 * - FC autoneg is disabled, or if
2999 * - link is not up.
3000 */
3001 if (hw->fc.disable_fc_autoneg) {
3002 hw_err(hw, "Flow control autoneg is disabled");
3003 goto out;
3004 }
3005
3006 hw->mac.ops.check_link(hw, &speed, &link_up, false);
3007 if (!link_up) {
3008 hw_err(hw, "The link is down");
3009 goto out;
3010 }
3011
3012 /* Check at auto-negotiation has completed */
3013 status = hw->mac.ops.read_iosf_sb_reg(hw,
3014 IXGBE_KRM_LINK_S1(hw->bus.lan_id),
3015 IXGBE_SB_IOSF_TARGET_KR_PHY, &link_s1);
3016
3017 if (status || (link_s1 & IXGBE_KRM_LINK_S1_MAC_AN_COMPLETE) == 0) {
3018 hw_dbg(hw, "Auto-Negotiation did not complete\n");
3019 status = -EIO;
3020 goto out;
3021 }
3022
3023 /* Read the 10g AN autoc and LP ability registers and resolve
3024 * local flow control settings accordingly
3025 */
3026 status = hw->mac.ops.read_iosf_sb_reg(hw,
3027 IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
3028 IXGBE_SB_IOSF_TARGET_KR_PHY, &an_cntl_1);
3029
3030 if (status) {
3031 hw_dbg(hw, "Auto-Negotiation did not complete\n");
3032 goto out;
3033 }
3034
3035 status = hw->mac.ops.read_iosf_sb_reg(hw,
3036 IXGBE_KRM_LP_BASE_PAGE_HIGH(hw->bus.lan_id),
3037 IXGBE_SB_IOSF_TARGET_KR_PHY, &lp_an_page_low);
3038
3039 if (status) {
3040 hw_dbg(hw, "Auto-Negotiation did not complete\n");
3041 goto out;
3042 }
3043
3044 status = ixgbe_negotiate_fc(hw, an_cntl_1, lp_an_page_low,
3045 IXGBE_KRM_AN_CNTL_1_SYM_PAUSE,
3046 IXGBE_KRM_AN_CNTL_1_ASM_PAUSE,
3047 IXGBE_KRM_LP_BASE_PAGE_HIGH_SYM_PAUSE,
3048 IXGBE_KRM_LP_BASE_PAGE_HIGH_ASM_PAUSE);
3049
3050out:
3051 if (!status) {
3052 hw->fc.fc_was_autonegged = true;
3053 } else {
3054 hw->fc.fc_was_autonegged = false;
3055 hw->fc.current_mode = hw->fc.requested_mode;
3056 }
3057}
3058
3059/**
3060 * ixgbe_fc_autoneg_fiber_x550em_a - passthrough FC settings
3061 * @hw: pointer to hardware structure
3062 **/
3063static void ixgbe_fc_autoneg_fiber_x550em_a(struct ixgbe_hw *hw)
3064{
3065 hw->fc.fc_was_autonegged = false;
3066 hw->fc.current_mode = hw->fc.requested_mode;
3067}
3068
3069/** ixgbe_enter_lplu_x550em - Transition to low power states
3070 * @hw: pointer to hardware structure
3071 *
3072 * Configures Low Power Link Up on transition to low power states
3073 * (from D0 to non-D0). Link is required to enter LPLU so avoid resetting
3074 * the X557 PHY immediately prior to entering LPLU.
3075 **/
3076static s32 ixgbe_enter_lplu_t_x550em(struct ixgbe_hw *hw)
3077{
3078 u16 an_10g_cntl_reg, autoneg_reg, speed;
3079 s32 status;
3080 ixgbe_link_speed lcd_speed;
3081 u32 save_autoneg;
3082 bool link_up;
3083
3084 /* If blocked by MNG FW, then don't restart AN */
3085 if (ixgbe_check_reset_blocked(hw))
3086 return 0;
3087
3088 status = ixgbe_ext_phy_t_x550em_get_link(hw, &link_up);
3089 if (status)
3090 return status;
3091
3092 status = hw->eeprom.ops.read(hw, NVM_INIT_CTRL_3,
3093 &hw->eeprom.ctrl_word_3);
3094 if (status)
3095 return status;
3096
3097 /* If link is down, LPLU disabled in NVM, WoL disabled, or
3098 * manageability disabled, then force link down by entering
3099 * low power mode.
3100 */
3101 if (!link_up || !(hw->eeprom.ctrl_word_3 & NVM_INIT_CTRL_3_LPLU) ||
3102 !(hw->wol_enabled || ixgbe_mng_present(hw)))
3103 return ixgbe_set_copper_phy_power(hw, false);
3104
3105 /* Determine LCD */
3106 status = ixgbe_get_lcd_t_x550em(hw, &lcd_speed);
3107 if (status)
3108 return status;
3109
3110 /* If no valid LCD link speed, then force link down and exit. */
3111 if (lcd_speed == IXGBE_LINK_SPEED_UNKNOWN)
3112 return ixgbe_set_copper_phy_power(hw, false);
3113
3114 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_VENDOR_STAT,
3115 MDIO_MMD_AN,
3116 &speed);
3117 if (status)
3118 return status;
3119
3120 /* If no link now, speed is invalid so take link down */
3121 status = ixgbe_ext_phy_t_x550em_get_link(hw, &link_up);
3122 if (status)
3123 return ixgbe_set_copper_phy_power(hw, false);
3124
3125 /* clear everything but the speed bits */
3126 speed &= IXGBE_MDIO_AUTO_NEG_VEN_STAT_SPEED_MASK;
3127
3128 /* If current speed is already LCD, then exit. */
3129 if (((speed == IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_1GB) &&
3130 (lcd_speed == IXGBE_LINK_SPEED_1GB_FULL)) ||
3131 ((speed == IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_10GB) &&
3132 (lcd_speed == IXGBE_LINK_SPEED_10GB_FULL)))
3133 return status;
3134
3135 /* Clear AN completed indication */
3136 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_VENDOR_TX_ALARM,
3137 MDIO_MMD_AN,
3138 &autoneg_reg);
3139 if (status)
3140 return status;
3141
3142 status = hw->phy.ops.read_reg(hw, MDIO_AN_10GBT_CTRL,
3143 MDIO_MMD_AN,
3144 &an_10g_cntl_reg);
3145 if (status)
3146 return status;
3147
3148 status = hw->phy.ops.read_reg(hw,
3149 IXGBE_MII_AUTONEG_VENDOR_PROVISION_1_REG,
3150 MDIO_MMD_AN,
3151 &autoneg_reg);
3152 if (status)
3153 return status;
3154
3155 save_autoneg = hw->phy.autoneg_advertised;
3156
3157 /* Setup link at least common link speed */
3158 status = hw->mac.ops.setup_link(hw, lcd_speed, false);
3159
3160 /* restore autoneg from before setting lplu speed */
3161 hw->phy.autoneg_advertised = save_autoneg;
3162
3163 return status;
3164}
3165
3166/**
3167 * ixgbe_reset_phy_fw - Reset firmware-controlled PHYs
3168 * @hw: pointer to hardware structure
3169 */
3170static s32 ixgbe_reset_phy_fw(struct ixgbe_hw *hw)
3171{
3172 u32 store[FW_PHY_ACT_DATA_COUNT] = { 0 };
3173 s32 rc;
3174
3175 if (hw->phy.reset_disable || ixgbe_check_reset_blocked(hw))
3176 return 0;
3177
3178 rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_PHY_SW_RESET, &store);
3179 if (rc)
3180 return rc;
3181 memset(store, 0, sizeof(store));
3182
3183 rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_INIT_PHY, &store);
3184 if (rc)
3185 return rc;
3186
3187 return ixgbe_setup_fw_link(hw);
3188}
3189
3190/**
3191 * ixgbe_check_overtemp_fw - Check firmware-controlled PHYs for overtemp
3192 * @hw: pointer to hardware structure
3193 *
3194 * Return true when an overtemp event detected, otherwise false.
3195 */
3196static bool ixgbe_check_overtemp_fw(struct ixgbe_hw *hw)
3197{
3198 u32 store[FW_PHY_ACT_DATA_COUNT] = { 0 };
3199 s32 rc;
3200
3201 rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_GET_LINK_INFO, &store);
3202 if (rc)
3203 return false;
3204
3205 if (store[0] & FW_PHY_ACT_GET_LINK_INFO_TEMP) {
3206 ixgbe_shutdown_fw_phy(hw);
3207 return true;
3208 }
3209 return false;
3210}
3211
3212/**
3213 * ixgbe_read_mng_if_sel_x550em - Read NW_MNG_IF_SEL register
3214 * @hw: pointer to hardware structure
3215 *
3216 * Read NW_MNG_IF_SEL register and save field values.
3217 */
3218static void ixgbe_read_mng_if_sel_x550em(struct ixgbe_hw *hw)
3219{
3220 /* Save NW management interface connected on board. This is used
3221 * to determine internal PHY mode.
3222 */
3223 hw->phy.nw_mng_if_sel = IXGBE_READ_REG(hw, IXGBE_NW_MNG_IF_SEL);
3224
3225 /* If X552 (X550EM_a) and MDIO is connected to external PHY, then set
3226 * PHY address. This register field was has only been used for X552.
3227 */
3228 if (hw->mac.type == ixgbe_mac_x550em_a &&
3229 hw->phy.nw_mng_if_sel & IXGBE_NW_MNG_IF_SEL_MDIO_ACT) {
3230 hw->phy.mdio.prtad = FIELD_GET(IXGBE_NW_MNG_IF_SEL_MDIO_PHY_ADD,
3231 hw->phy.nw_mng_if_sel);
3232 }
3233}
3234
3235/** ixgbe_init_phy_ops_X550em - PHY/SFP specific init
3236 * @hw: pointer to hardware structure
3237 *
3238 * Initialize any function pointers that were not able to be
3239 * set during init_shared_code because the PHY/SFP type was
3240 * not known. Perform the SFP init if necessary.
3241 **/
3242static s32 ixgbe_init_phy_ops_X550em(struct ixgbe_hw *hw)
3243{
3244 struct ixgbe_phy_info *phy = &hw->phy;
3245 s32 ret_val;
3246
3247 hw->mac.ops.set_lan_id(hw);
3248
3249 ixgbe_read_mng_if_sel_x550em(hw);
3250
3251 if (hw->mac.ops.get_media_type(hw) == ixgbe_media_type_fiber) {
3252 phy->phy_semaphore_mask = IXGBE_GSSR_SHARED_I2C_SM;
3253 ixgbe_setup_mux_ctl(hw);
3254 }
3255
3256 /* Identify the PHY or SFP module */
3257 ret_val = phy->ops.identify(hw);
3258 if (ret_val == -EOPNOTSUPP || ret_val == -EFAULT)
3259 return ret_val;
3260
3261 /* Setup function pointers based on detected hardware */
3262 ixgbe_init_mac_link_ops_X550em(hw);
3263 if (phy->sfp_type != ixgbe_sfp_type_unknown)
3264 phy->ops.reset = NULL;
3265
3266 /* Set functions pointers based on phy type */
3267 switch (hw->phy.type) {
3268 case ixgbe_phy_x550em_kx4:
3269 phy->ops.setup_link = NULL;
3270 phy->ops.read_reg = ixgbe_read_phy_reg_x550em;
3271 phy->ops.write_reg = ixgbe_write_phy_reg_x550em;
3272 break;
3273 case ixgbe_phy_x550em_kr:
3274 phy->ops.setup_link = ixgbe_setup_kr_x550em;
3275 phy->ops.read_reg = ixgbe_read_phy_reg_x550em;
3276 phy->ops.write_reg = ixgbe_write_phy_reg_x550em;
3277 break;
3278 case ixgbe_phy_x550em_xfi:
3279 /* link is managed by HW */
3280 phy->ops.setup_link = NULL;
3281 phy->ops.read_reg = ixgbe_read_phy_reg_x550em;
3282 phy->ops.write_reg = ixgbe_write_phy_reg_x550em;
3283 break;
3284 case ixgbe_phy_x550em_ext_t:
3285 /* Save NW management interface connected on board. This is used
3286 * to determine internal PHY mode
3287 */
3288 phy->nw_mng_if_sel = IXGBE_READ_REG(hw, IXGBE_NW_MNG_IF_SEL);
3289
3290 /* If internal link mode is XFI, then setup iXFI internal link,
3291 * else setup KR now.
3292 */
3293 phy->ops.setup_internal_link =
3294 ixgbe_setup_internal_phy_t_x550em;
3295
3296 /* setup SW LPLU only for first revision */
3297 if (hw->mac.type == ixgbe_mac_X550EM_x &&
3298 !(IXGBE_READ_REG(hw, IXGBE_FUSES0_GROUP(0)) &
3299 IXGBE_FUSES0_REV_MASK))
3300 phy->ops.enter_lplu = ixgbe_enter_lplu_t_x550em;
3301
3302 phy->ops.handle_lasi = ixgbe_handle_lasi_ext_t_x550em;
3303 phy->ops.reset = ixgbe_reset_phy_t_X550em;
3304 break;
3305 case ixgbe_phy_sgmii:
3306 phy->ops.setup_link = NULL;
3307 break;
3308 case ixgbe_phy_fw:
3309 phy->ops.setup_link = ixgbe_setup_fw_link;
3310 phy->ops.reset = ixgbe_reset_phy_fw;
3311 break;
3312 case ixgbe_phy_ext_1g_t:
3313 phy->ops.setup_link = NULL;
3314 phy->ops.read_reg = NULL;
3315 phy->ops.write_reg = NULL;
3316 phy->ops.reset = NULL;
3317 break;
3318 default:
3319 break;
3320 }
3321
3322 return ret_val;
3323}
3324
3325/** ixgbe_get_media_type_X550em - Get media type
3326 * @hw: pointer to hardware structure
3327 *
3328 * Returns the media type (fiber, copper, backplane)
3329 *
3330 */
3331static enum ixgbe_media_type ixgbe_get_media_type_X550em(struct ixgbe_hw *hw)
3332{
3333 enum ixgbe_media_type media_type;
3334
3335 /* Detect if there is a copper PHY attached. */
3336 switch (hw->device_id) {
3337 case IXGBE_DEV_ID_X550EM_A_SGMII:
3338 case IXGBE_DEV_ID_X550EM_A_SGMII_L:
3339 hw->phy.type = ixgbe_phy_sgmii;
3340 fallthrough;
3341 case IXGBE_DEV_ID_X550EM_X_KR:
3342 case IXGBE_DEV_ID_X550EM_X_KX4:
3343 case IXGBE_DEV_ID_X550EM_X_XFI:
3344 case IXGBE_DEV_ID_X550EM_A_KR:
3345 case IXGBE_DEV_ID_X550EM_A_KR_L:
3346 media_type = ixgbe_media_type_backplane;
3347 break;
3348 case IXGBE_DEV_ID_X550EM_X_SFP:
3349 case IXGBE_DEV_ID_X550EM_A_SFP:
3350 case IXGBE_DEV_ID_X550EM_A_SFP_N:
3351 media_type = ixgbe_media_type_fiber;
3352 break;
3353 case IXGBE_DEV_ID_X550EM_X_1G_T:
3354 case IXGBE_DEV_ID_X550EM_X_10G_T:
3355 case IXGBE_DEV_ID_X550EM_A_10G_T:
3356 case IXGBE_DEV_ID_X550EM_A_1G_T:
3357 case IXGBE_DEV_ID_X550EM_A_1G_T_L:
3358 media_type = ixgbe_media_type_copper;
3359 break;
3360 default:
3361 media_type = ixgbe_media_type_unknown;
3362 break;
3363 }
3364 return media_type;
3365}
3366
3367/** ixgbe_init_ext_t_x550em - Start (unstall) the external Base T PHY.
3368 ** @hw: pointer to hardware structure
3369 **/
3370static s32 ixgbe_init_ext_t_x550em(struct ixgbe_hw *hw)
3371{
3372 s32 status;
3373 u16 reg;
3374
3375 status = hw->phy.ops.read_reg(hw,
3376 IXGBE_MDIO_TX_VENDOR_ALARMS_3,
3377 MDIO_MMD_PMAPMD,
3378 ®);
3379 if (status)
3380 return status;
3381
3382 /* If PHY FW reset completed bit is set then this is the first
3383 * SW instance after a power on so the PHY FW must be un-stalled.
3384 */
3385 if (reg & IXGBE_MDIO_TX_VENDOR_ALARMS_3_RST_MASK) {
3386 status = hw->phy.ops.read_reg(hw,
3387 IXGBE_MDIO_GLOBAL_RES_PR_10,
3388 MDIO_MMD_VEND1,
3389 ®);
3390 if (status)
3391 return status;
3392
3393 reg &= ~IXGBE_MDIO_POWER_UP_STALL;
3394
3395 status = hw->phy.ops.write_reg(hw,
3396 IXGBE_MDIO_GLOBAL_RES_PR_10,
3397 MDIO_MMD_VEND1,
3398 reg);
3399 if (status)
3400 return status;
3401 }
3402
3403 return status;
3404}
3405
3406/**
3407 * ixgbe_set_mdio_speed - Set MDIO clock speed
3408 * @hw: pointer to hardware structure
3409 */
3410static void ixgbe_set_mdio_speed(struct ixgbe_hw *hw)
3411{
3412 u32 hlreg0;
3413
3414 switch (hw->device_id) {
3415 case IXGBE_DEV_ID_X550EM_X_10G_T:
3416 case IXGBE_DEV_ID_X550EM_A_SGMII:
3417 case IXGBE_DEV_ID_X550EM_A_SGMII_L:
3418 case IXGBE_DEV_ID_X550EM_A_10G_T:
3419 case IXGBE_DEV_ID_X550EM_A_SFP:
3420 /* Config MDIO clock speed before the first MDIO PHY access */
3421 hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0);
3422 hlreg0 &= ~IXGBE_HLREG0_MDCSPD;
3423 IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0);
3424 break;
3425 case IXGBE_DEV_ID_X550EM_A_1G_T:
3426 case IXGBE_DEV_ID_X550EM_A_1G_T_L:
3427 /* Select fast MDIO clock speed for these devices */
3428 hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0);
3429 hlreg0 |= IXGBE_HLREG0_MDCSPD;
3430 IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0);
3431 break;
3432 default:
3433 break;
3434 }
3435}
3436
3437/** ixgbe_reset_hw_X550em - Perform hardware reset
3438 ** @hw: pointer to hardware structure
3439 **
3440 ** Resets the hardware by resetting the transmit and receive units, masks
3441 ** and clears all interrupts, perform a PHY reset, and perform a link (MAC)
3442 ** reset.
3443 **/
3444static s32 ixgbe_reset_hw_X550em(struct ixgbe_hw *hw)
3445{
3446 ixgbe_link_speed link_speed;
3447 s32 status;
3448 u32 ctrl = 0;
3449 u32 i;
3450 bool link_up = false;
3451 u32 swfw_mask = hw->phy.phy_semaphore_mask;
3452
3453 /* Call adapter stop to disable Tx/Rx and clear interrupts */
3454 status = hw->mac.ops.stop_adapter(hw);
3455 if (status)
3456 return status;
3457
3458 /* flush pending Tx transactions */
3459 ixgbe_clear_tx_pending(hw);
3460
3461 /* set MDIO speed before talking to the PHY in case it's the 1st time */
3462 ixgbe_set_mdio_speed(hw);
3463
3464 /* PHY ops must be identified and initialized prior to reset */
3465 status = hw->phy.ops.init(hw);
3466 if (status == -EOPNOTSUPP || status == -EFAULT)
3467 return status;
3468
3469 /* start the external PHY */
3470 if (hw->phy.type == ixgbe_phy_x550em_ext_t) {
3471 status = ixgbe_init_ext_t_x550em(hw);
3472 if (status)
3473 return status;
3474 }
3475
3476 /* Setup SFP module if there is one present. */
3477 if (hw->phy.sfp_setup_needed) {
3478 status = hw->mac.ops.setup_sfp(hw);
3479 hw->phy.sfp_setup_needed = false;
3480 }
3481
3482 if (status == -EOPNOTSUPP)
3483 return status;
3484
3485 /* Reset PHY */
3486 if (!hw->phy.reset_disable && hw->phy.ops.reset)
3487 hw->phy.ops.reset(hw);
3488
3489mac_reset_top:
3490 /* Issue global reset to the MAC. Needs to be SW reset if link is up.
3491 * If link reset is used when link is up, it might reset the PHY when
3492 * mng is using it. If link is down or the flag to force full link
3493 * reset is set, then perform link reset.
3494 */
3495 ctrl = IXGBE_CTRL_LNK_RST;
3496
3497 if (!hw->force_full_reset) {
3498 hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
3499 if (link_up)
3500 ctrl = IXGBE_CTRL_RST;
3501 }
3502
3503 status = hw->mac.ops.acquire_swfw_sync(hw, swfw_mask);
3504 if (status) {
3505 hw_dbg(hw, "semaphore failed with %d", status);
3506 return -EBUSY;
3507 }
3508
3509 ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL);
3510 IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
3511 IXGBE_WRITE_FLUSH(hw);
3512 hw->mac.ops.release_swfw_sync(hw, swfw_mask);
3513 usleep_range(1000, 1200);
3514
3515 /* Poll for reset bit to self-clear meaning reset is complete */
3516 for (i = 0; i < 10; i++) {
3517 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
3518 if (!(ctrl & IXGBE_CTRL_RST_MASK))
3519 break;
3520 udelay(1);
3521 }
3522
3523 if (ctrl & IXGBE_CTRL_RST_MASK) {
3524 status = -EIO;
3525 hw_dbg(hw, "Reset polling failed to complete.\n");
3526 }
3527
3528 msleep(50);
3529
3530 /* Double resets are required for recovery from certain error
3531 * clear the multicast table. Also reset num_rar_entries to 128,
3532 * since we modify this value when programming the SAN MAC address.
3533 */
3534 if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
3535 hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
3536 goto mac_reset_top;
3537 }
3538
3539 /* Store the permanent mac address */
3540 hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
3541
3542 /* Store MAC address from RAR0, clear receive address registers, and
3543 * clear the multicast table. Also reset num_rar_entries to 128,
3544 * since we modify this value when programming the SAN MAC address.
3545 */
3546 hw->mac.num_rar_entries = 128;
3547 hw->mac.ops.init_rx_addrs(hw);
3548
3549 ixgbe_set_mdio_speed(hw);
3550
3551 if (hw->device_id == IXGBE_DEV_ID_X550EM_X_SFP)
3552 ixgbe_setup_mux_ctl(hw);
3553
3554 return status;
3555}
3556
3557/** ixgbe_set_ethertype_anti_spoofing_X550 - Enable/Disable Ethertype
3558 * anti-spoofing
3559 * @hw: pointer to hardware structure
3560 * @enable: enable or disable switch for Ethertype anti-spoofing
3561 * @vf: Virtual Function pool - VF Pool to set for Ethertype anti-spoofing
3562 **/
3563static void ixgbe_set_ethertype_anti_spoofing_X550(struct ixgbe_hw *hw,
3564 bool enable, int vf)
3565{
3566 int vf_target_reg = vf >> 3;
3567 int vf_target_shift = vf % 8 + IXGBE_SPOOF_ETHERTYPEAS_SHIFT;
3568 u32 pfvfspoof;
3569
3570 pfvfspoof = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg));
3571 if (enable)
3572 pfvfspoof |= BIT(vf_target_shift);
3573 else
3574 pfvfspoof &= ~BIT(vf_target_shift);
3575
3576 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), pfvfspoof);
3577}
3578
3579/** ixgbe_set_source_address_pruning_X550 - Enable/Disbale src address pruning
3580 * @hw: pointer to hardware structure
3581 * @enable: enable or disable source address pruning
3582 * @pool: Rx pool to set source address pruning for
3583 **/
3584static void ixgbe_set_source_address_pruning_X550(struct ixgbe_hw *hw,
3585 bool enable,
3586 unsigned int pool)
3587{
3588 u64 pfflp;
3589
3590 /* max rx pool is 63 */
3591 if (pool > 63)
3592 return;
3593
3594 pfflp = (u64)IXGBE_READ_REG(hw, IXGBE_PFFLPL);
3595 pfflp |= (u64)IXGBE_READ_REG(hw, IXGBE_PFFLPH) << 32;
3596
3597 if (enable)
3598 pfflp |= (1ULL << pool);
3599 else
3600 pfflp &= ~(1ULL << pool);
3601
3602 IXGBE_WRITE_REG(hw, IXGBE_PFFLPL, (u32)pfflp);
3603 IXGBE_WRITE_REG(hw, IXGBE_PFFLPH, (u32)(pfflp >> 32));
3604}
3605
3606/**
3607 * ixgbe_setup_fc_backplane_x550em_a - Set up flow control
3608 * @hw: pointer to hardware structure
3609 *
3610 * Called at init time to set up flow control.
3611 **/
3612static s32 ixgbe_setup_fc_backplane_x550em_a(struct ixgbe_hw *hw)
3613{
3614 s32 status = 0;
3615 u32 an_cntl = 0;
3616
3617 /* Validate the requested mode */
3618 if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
3619 hw_err(hw, "ixgbe_fc_rx_pause not valid in strict IEEE mode\n");
3620 return -EINVAL;
3621 }
3622
3623 if (hw->fc.requested_mode == ixgbe_fc_default)
3624 hw->fc.requested_mode = ixgbe_fc_full;
3625
3626 /* Set up the 1G and 10G flow control advertisement registers so the
3627 * HW will be able to do FC autoneg once the cable is plugged in. If
3628 * we link at 10G, the 1G advertisement is harmless and vice versa.
3629 */
3630 status = hw->mac.ops.read_iosf_sb_reg(hw,
3631 IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
3632 IXGBE_SB_IOSF_TARGET_KR_PHY, &an_cntl);
3633
3634 if (status) {
3635 hw_dbg(hw, "Auto-Negotiation did not complete\n");
3636 return status;
3637 }
3638
3639 /* The possible values of fc.requested_mode are:
3640 * 0: Flow control is completely disabled
3641 * 1: Rx flow control is enabled (we can receive pause frames,
3642 * but not send pause frames).
3643 * 2: Tx flow control is enabled (we can send pause frames but
3644 * we do not support receiving pause frames).
3645 * 3: Both Rx and Tx flow control (symmetric) are enabled.
3646 * other: Invalid.
3647 */
3648 switch (hw->fc.requested_mode) {
3649 case ixgbe_fc_none:
3650 /* Flow control completely disabled by software override. */
3651 an_cntl &= ~(IXGBE_KRM_AN_CNTL_1_SYM_PAUSE |
3652 IXGBE_KRM_AN_CNTL_1_ASM_PAUSE);
3653 break;
3654 case ixgbe_fc_tx_pause:
3655 /* Tx Flow control is enabled, and Rx Flow control is
3656 * disabled by software override.
3657 */
3658 an_cntl |= IXGBE_KRM_AN_CNTL_1_ASM_PAUSE;
3659 an_cntl &= ~IXGBE_KRM_AN_CNTL_1_SYM_PAUSE;
3660 break;
3661 case ixgbe_fc_rx_pause:
3662 /* Rx Flow control is enabled and Tx Flow control is
3663 * disabled by software override. Since there really
3664 * isn't a way to advertise that we are capable of RX
3665 * Pause ONLY, we will advertise that we support both
3666 * symmetric and asymmetric Rx PAUSE, as such we fall
3667 * through to the fc_full statement. Later, we will
3668 * disable the adapter's ability to send PAUSE frames.
3669 */
3670 case ixgbe_fc_full:
3671 /* Flow control (both Rx and Tx) is enabled by SW override. */
3672 an_cntl |= IXGBE_KRM_AN_CNTL_1_SYM_PAUSE |
3673 IXGBE_KRM_AN_CNTL_1_ASM_PAUSE;
3674 break;
3675 default:
3676 hw_err(hw, "Flow control param set incorrectly\n");
3677 return -EIO;
3678 }
3679
3680 status = hw->mac.ops.write_iosf_sb_reg(hw,
3681 IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
3682 IXGBE_SB_IOSF_TARGET_KR_PHY, an_cntl);
3683
3684 /* Restart auto-negotiation. */
3685 status = ixgbe_restart_an_internal_phy_x550em(hw);
3686
3687 return status;
3688}
3689
3690/**
3691 * ixgbe_set_mux - Set mux for port 1 access with CS4227
3692 * @hw: pointer to hardware structure
3693 * @state: set mux if 1, clear if 0
3694 */
3695static void ixgbe_set_mux(struct ixgbe_hw *hw, u8 state)
3696{
3697 u32 esdp;
3698
3699 if (!hw->bus.lan_id)
3700 return;
3701 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
3702 if (state)
3703 esdp |= IXGBE_ESDP_SDP1;
3704 else
3705 esdp &= ~IXGBE_ESDP_SDP1;
3706 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
3707 IXGBE_WRITE_FLUSH(hw);
3708}
3709
3710/**
3711 * ixgbe_acquire_swfw_sync_X550em - Acquire SWFW semaphore
3712 * @hw: pointer to hardware structure
3713 * @mask: Mask to specify which semaphore to acquire
3714 *
3715 * Acquires the SWFW semaphore and sets the I2C MUX
3716 */
3717static s32 ixgbe_acquire_swfw_sync_X550em(struct ixgbe_hw *hw, u32 mask)
3718{
3719 s32 status;
3720
3721 status = ixgbe_acquire_swfw_sync_X540(hw, mask);
3722 if (status)
3723 return status;
3724
3725 if (mask & IXGBE_GSSR_I2C_MASK)
3726 ixgbe_set_mux(hw, 1);
3727
3728 return 0;
3729}
3730
3731/**
3732 * ixgbe_release_swfw_sync_X550em - Release SWFW semaphore
3733 * @hw: pointer to hardware structure
3734 * @mask: Mask to specify which semaphore to release
3735 *
3736 * Releases the SWFW semaphore and sets the I2C MUX
3737 */
3738static void ixgbe_release_swfw_sync_X550em(struct ixgbe_hw *hw, u32 mask)
3739{
3740 if (mask & IXGBE_GSSR_I2C_MASK)
3741 ixgbe_set_mux(hw, 0);
3742
3743 ixgbe_release_swfw_sync_X540(hw, mask);
3744}
3745
3746/**
3747 * ixgbe_acquire_swfw_sync_x550em_a - Acquire SWFW semaphore
3748 * @hw: pointer to hardware structure
3749 * @mask: Mask to specify which semaphore to acquire
3750 *
3751 * Acquires the SWFW semaphore and get the shared PHY token as needed
3752 */
3753static s32 ixgbe_acquire_swfw_sync_x550em_a(struct ixgbe_hw *hw, u32 mask)
3754{
3755 u32 hmask = mask & ~IXGBE_GSSR_TOKEN_SM;
3756 int retries = FW_PHY_TOKEN_RETRIES;
3757 s32 status;
3758
3759 while (--retries) {
3760 status = 0;
3761 if (hmask)
3762 status = ixgbe_acquire_swfw_sync_X540(hw, hmask);
3763 if (status)
3764 return status;
3765 if (!(mask & IXGBE_GSSR_TOKEN_SM))
3766 return 0;
3767
3768 status = ixgbe_get_phy_token(hw);
3769 if (!status)
3770 return 0;
3771 if (hmask)
3772 ixgbe_release_swfw_sync_X540(hw, hmask);
3773 if (status != -EAGAIN)
3774 return status;
3775 msleep(FW_PHY_TOKEN_DELAY);
3776 }
3777
3778 return status;
3779}
3780
3781/**
3782 * ixgbe_release_swfw_sync_x550em_a - Release SWFW semaphore
3783 * @hw: pointer to hardware structure
3784 * @mask: Mask to specify which semaphore to release
3785 *
3786 * Release the SWFW semaphore and puts the shared PHY token as needed
3787 */
3788static void ixgbe_release_swfw_sync_x550em_a(struct ixgbe_hw *hw, u32 mask)
3789{
3790 u32 hmask = mask & ~IXGBE_GSSR_TOKEN_SM;
3791
3792 if (mask & IXGBE_GSSR_TOKEN_SM)
3793 ixgbe_put_phy_token(hw);
3794
3795 if (hmask)
3796 ixgbe_release_swfw_sync_X540(hw, hmask);
3797}
3798
3799/**
3800 * ixgbe_read_phy_reg_x550a - Reads specified PHY register
3801 * @hw: pointer to hardware structure
3802 * @reg_addr: 32 bit address of PHY register to read
3803 * @device_type: 5 bit device type
3804 * @phy_data: Pointer to read data from PHY register
3805 *
3806 * Reads a value from a specified PHY register using the SWFW lock and PHY
3807 * Token. The PHY Token is needed since the MDIO is shared between to MAC
3808 * instances.
3809 */
3810static s32 ixgbe_read_phy_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr,
3811 u32 device_type, u16 *phy_data)
3812{
3813 u32 mask = hw->phy.phy_semaphore_mask | IXGBE_GSSR_TOKEN_SM;
3814 s32 status;
3815
3816 if (hw->mac.ops.acquire_swfw_sync(hw, mask))
3817 return -EBUSY;
3818
3819 status = hw->phy.ops.read_reg_mdi(hw, reg_addr, device_type, phy_data);
3820
3821 hw->mac.ops.release_swfw_sync(hw, mask);
3822
3823 return status;
3824}
3825
3826/**
3827 * ixgbe_write_phy_reg_x550a - Writes specified PHY register
3828 * @hw: pointer to hardware structure
3829 * @reg_addr: 32 bit PHY register to write
3830 * @device_type: 5 bit device type
3831 * @phy_data: Data to write to the PHY register
3832 *
3833 * Writes a value to specified PHY register using the SWFW lock and PHY Token.
3834 * The PHY Token is needed since the MDIO is shared between to MAC instances.
3835 */
3836static s32 ixgbe_write_phy_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr,
3837 u32 device_type, u16 phy_data)
3838{
3839 u32 mask = hw->phy.phy_semaphore_mask | IXGBE_GSSR_TOKEN_SM;
3840 s32 status;
3841
3842 if (hw->mac.ops.acquire_swfw_sync(hw, mask))
3843 return -EBUSY;
3844
3845 status = ixgbe_write_phy_reg_mdi(hw, reg_addr, device_type, phy_data);
3846 hw->mac.ops.release_swfw_sync(hw, mask);
3847
3848 return status;
3849}
3850
3851#define X550_COMMON_MAC \
3852 .init_hw = &ixgbe_init_hw_generic, \
3853 .start_hw = &ixgbe_start_hw_X540, \
3854 .clear_hw_cntrs = &ixgbe_clear_hw_cntrs_generic, \
3855 .enable_rx_dma = &ixgbe_enable_rx_dma_generic, \
3856 .get_mac_addr = &ixgbe_get_mac_addr_generic, \
3857 .get_device_caps = &ixgbe_get_device_caps_generic, \
3858 .stop_adapter = &ixgbe_stop_adapter_generic, \
3859 .set_lan_id = &ixgbe_set_lan_id_multi_port_pcie, \
3860 .read_analog_reg8 = NULL, \
3861 .write_analog_reg8 = NULL, \
3862 .set_rxpba = &ixgbe_set_rxpba_generic, \
3863 .check_link = &ixgbe_check_mac_link_generic, \
3864 .blink_led_start = &ixgbe_blink_led_start_X540, \
3865 .blink_led_stop = &ixgbe_blink_led_stop_X540, \
3866 .set_rar = &ixgbe_set_rar_generic, \
3867 .clear_rar = &ixgbe_clear_rar_generic, \
3868 .set_vmdq = &ixgbe_set_vmdq_generic, \
3869 .set_vmdq_san_mac = &ixgbe_set_vmdq_san_mac_generic, \
3870 .clear_vmdq = &ixgbe_clear_vmdq_generic, \
3871 .init_rx_addrs = &ixgbe_init_rx_addrs_generic, \
3872 .update_mc_addr_list = &ixgbe_update_mc_addr_list_generic, \
3873 .enable_mc = &ixgbe_enable_mc_generic, \
3874 .disable_mc = &ixgbe_disable_mc_generic, \
3875 .clear_vfta = &ixgbe_clear_vfta_generic, \
3876 .set_vfta = &ixgbe_set_vfta_generic, \
3877 .fc_enable = &ixgbe_fc_enable_generic, \
3878 .set_fw_drv_ver = &ixgbe_set_fw_drv_ver_x550, \
3879 .init_uta_tables = &ixgbe_init_uta_tables_generic, \
3880 .set_mac_anti_spoofing = &ixgbe_set_mac_anti_spoofing, \
3881 .set_vlan_anti_spoofing = &ixgbe_set_vlan_anti_spoofing, \
3882 .set_source_address_pruning = \
3883 &ixgbe_set_source_address_pruning_X550, \
3884 .set_ethertype_anti_spoofing = \
3885 &ixgbe_set_ethertype_anti_spoofing_X550, \
3886 .disable_rx_buff = &ixgbe_disable_rx_buff_generic, \
3887 .enable_rx_buff = &ixgbe_enable_rx_buff_generic, \
3888 .get_thermal_sensor_data = NULL, \
3889 .init_thermal_sensor_thresh = NULL, \
3890 .fw_recovery_mode = &ixgbe_fw_recovery_mode_X550, \
3891 .enable_rx = &ixgbe_enable_rx_generic, \
3892 .disable_rx = &ixgbe_disable_rx_x550, \
3893
3894static const struct ixgbe_mac_operations mac_ops_X550 = {
3895 X550_COMMON_MAC
3896 .led_on = ixgbe_led_on_generic,
3897 .led_off = ixgbe_led_off_generic,
3898 .init_led_link_act = ixgbe_init_led_link_act_generic,
3899 .reset_hw = &ixgbe_reset_hw_X540,
3900 .get_media_type = &ixgbe_get_media_type_X540,
3901 .get_san_mac_addr = &ixgbe_get_san_mac_addr_generic,
3902 .get_wwn_prefix = &ixgbe_get_wwn_prefix_generic,
3903 .setup_link = &ixgbe_setup_mac_link_X540,
3904 .get_link_capabilities = &ixgbe_get_copper_link_capabilities_generic,
3905 .get_bus_info = &ixgbe_get_bus_info_generic,
3906 .setup_sfp = NULL,
3907 .acquire_swfw_sync = &ixgbe_acquire_swfw_sync_X540,
3908 .release_swfw_sync = &ixgbe_release_swfw_sync_X540,
3909 .init_swfw_sync = &ixgbe_init_swfw_sync_X540,
3910 .prot_autoc_read = prot_autoc_read_generic,
3911 .prot_autoc_write = prot_autoc_write_generic,
3912 .setup_fc = ixgbe_setup_fc_generic,
3913 .fc_autoneg = ixgbe_fc_autoneg,
3914};
3915
3916static const struct ixgbe_mac_operations mac_ops_X550EM_x = {
3917 X550_COMMON_MAC
3918 .led_on = ixgbe_led_on_t_x550em,
3919 .led_off = ixgbe_led_off_t_x550em,
3920 .init_led_link_act = ixgbe_init_led_link_act_generic,
3921 .reset_hw = &ixgbe_reset_hw_X550em,
3922 .get_media_type = &ixgbe_get_media_type_X550em,
3923 .get_san_mac_addr = NULL,
3924 .get_wwn_prefix = NULL,
3925 .setup_link = &ixgbe_setup_mac_link_X540,
3926 .get_link_capabilities = &ixgbe_get_link_capabilities_X550em,
3927 .get_bus_info = &ixgbe_get_bus_info_X550em,
3928 .setup_sfp = ixgbe_setup_sfp_modules_X550em,
3929 .acquire_swfw_sync = &ixgbe_acquire_swfw_sync_X550em,
3930 .release_swfw_sync = &ixgbe_release_swfw_sync_X550em,
3931 .init_swfw_sync = &ixgbe_init_swfw_sync_X540,
3932 .setup_fc = NULL, /* defined later */
3933 .fc_autoneg = ixgbe_fc_autoneg,
3934 .read_iosf_sb_reg = ixgbe_read_iosf_sb_reg_x550,
3935 .write_iosf_sb_reg = ixgbe_write_iosf_sb_reg_x550,
3936};
3937
3938static const struct ixgbe_mac_operations mac_ops_X550EM_x_fw = {
3939 X550_COMMON_MAC
3940 .led_on = NULL,
3941 .led_off = NULL,
3942 .init_led_link_act = NULL,
3943 .reset_hw = &ixgbe_reset_hw_X550em,
3944 .get_media_type = &ixgbe_get_media_type_X550em,
3945 .get_san_mac_addr = NULL,
3946 .get_wwn_prefix = NULL,
3947 .setup_link = &ixgbe_setup_mac_link_X540,
3948 .get_link_capabilities = &ixgbe_get_link_capabilities_X550em,
3949 .get_bus_info = &ixgbe_get_bus_info_X550em,
3950 .setup_sfp = ixgbe_setup_sfp_modules_X550em,
3951 .acquire_swfw_sync = &ixgbe_acquire_swfw_sync_X550em,
3952 .release_swfw_sync = &ixgbe_release_swfw_sync_X550em,
3953 .init_swfw_sync = &ixgbe_init_swfw_sync_X540,
3954 .setup_fc = NULL,
3955 .fc_autoneg = ixgbe_fc_autoneg,
3956 .read_iosf_sb_reg = ixgbe_read_iosf_sb_reg_x550,
3957 .write_iosf_sb_reg = ixgbe_write_iosf_sb_reg_x550,
3958};
3959
3960static const struct ixgbe_mac_operations mac_ops_x550em_a = {
3961 X550_COMMON_MAC
3962 .led_on = ixgbe_led_on_t_x550em,
3963 .led_off = ixgbe_led_off_t_x550em,
3964 .init_led_link_act = ixgbe_init_led_link_act_generic,
3965 .reset_hw = ixgbe_reset_hw_X550em,
3966 .get_media_type = ixgbe_get_media_type_X550em,
3967 .get_san_mac_addr = NULL,
3968 .get_wwn_prefix = NULL,
3969 .setup_link = &ixgbe_setup_mac_link_X540,
3970 .get_link_capabilities = ixgbe_get_link_capabilities_X550em,
3971 .get_bus_info = ixgbe_get_bus_info_X550em,
3972 .setup_sfp = ixgbe_setup_sfp_modules_X550em,
3973 .acquire_swfw_sync = ixgbe_acquire_swfw_sync_x550em_a,
3974 .release_swfw_sync = ixgbe_release_swfw_sync_x550em_a,
3975 .setup_fc = ixgbe_setup_fc_x550em,
3976 .fc_autoneg = ixgbe_fc_autoneg,
3977 .read_iosf_sb_reg = ixgbe_read_iosf_sb_reg_x550a,
3978 .write_iosf_sb_reg = ixgbe_write_iosf_sb_reg_x550a,
3979};
3980
3981static const struct ixgbe_mac_operations mac_ops_x550em_a_fw = {
3982 X550_COMMON_MAC
3983 .led_on = ixgbe_led_on_generic,
3984 .led_off = ixgbe_led_off_generic,
3985 .init_led_link_act = ixgbe_init_led_link_act_generic,
3986 .reset_hw = ixgbe_reset_hw_X550em,
3987 .get_media_type = ixgbe_get_media_type_X550em,
3988 .get_san_mac_addr = NULL,
3989 .get_wwn_prefix = NULL,
3990 .setup_link = NULL, /* defined later */
3991 .get_link_capabilities = ixgbe_get_link_capabilities_X550em,
3992 .get_bus_info = ixgbe_get_bus_info_X550em,
3993 .setup_sfp = ixgbe_setup_sfp_modules_X550em,
3994 .acquire_swfw_sync = ixgbe_acquire_swfw_sync_x550em_a,
3995 .release_swfw_sync = ixgbe_release_swfw_sync_x550em_a,
3996 .setup_fc = ixgbe_setup_fc_x550em,
3997 .fc_autoneg = ixgbe_fc_autoneg,
3998 .read_iosf_sb_reg = ixgbe_read_iosf_sb_reg_x550a,
3999 .write_iosf_sb_reg = ixgbe_write_iosf_sb_reg_x550a,
4000};
4001
4002#define X550_COMMON_EEP \
4003 .read = &ixgbe_read_ee_hostif_X550, \
4004 .read_buffer = &ixgbe_read_ee_hostif_buffer_X550, \
4005 .write = &ixgbe_write_ee_hostif_X550, \
4006 .write_buffer = &ixgbe_write_ee_hostif_buffer_X550, \
4007 .validate_checksum = &ixgbe_validate_eeprom_checksum_X550, \
4008 .update_checksum = &ixgbe_update_eeprom_checksum_X550, \
4009 .calc_checksum = &ixgbe_calc_eeprom_checksum_X550, \
4010
4011static const struct ixgbe_eeprom_operations eeprom_ops_X550 = {
4012 X550_COMMON_EEP
4013 .init_params = &ixgbe_init_eeprom_params_X550,
4014};
4015
4016static const struct ixgbe_eeprom_operations eeprom_ops_X550EM_x = {
4017 X550_COMMON_EEP
4018 .init_params = &ixgbe_init_eeprom_params_X540,
4019};
4020
4021#define X550_COMMON_PHY \
4022 .identify_sfp = &ixgbe_identify_module_generic, \
4023 .reset = NULL, \
4024 .setup_link_speed = &ixgbe_setup_phy_link_speed_generic, \
4025 .read_i2c_byte = &ixgbe_read_i2c_byte_generic, \
4026 .write_i2c_byte = &ixgbe_write_i2c_byte_generic, \
4027 .read_i2c_sff8472 = &ixgbe_read_i2c_sff8472_generic, \
4028 .read_i2c_eeprom = &ixgbe_read_i2c_eeprom_generic, \
4029 .write_i2c_eeprom = &ixgbe_write_i2c_eeprom_generic, \
4030 .setup_link = &ixgbe_setup_phy_link_generic, \
4031 .set_phy_power = NULL,
4032
4033static const struct ixgbe_phy_operations phy_ops_X550 = {
4034 X550_COMMON_PHY
4035 .check_overtemp = &ixgbe_tn_check_overtemp,
4036 .init = NULL,
4037 .identify = &ixgbe_identify_phy_generic,
4038 .read_reg = &ixgbe_read_phy_reg_generic,
4039 .write_reg = &ixgbe_write_phy_reg_generic,
4040};
4041
4042static const struct ixgbe_phy_operations phy_ops_X550EM_x = {
4043 X550_COMMON_PHY
4044 .check_overtemp = &ixgbe_tn_check_overtemp,
4045 .init = &ixgbe_init_phy_ops_X550em,
4046 .identify = &ixgbe_identify_phy_x550em,
4047 .read_reg = &ixgbe_read_phy_reg_generic,
4048 .write_reg = &ixgbe_write_phy_reg_generic,
4049};
4050
4051static const struct ixgbe_phy_operations phy_ops_x550em_x_fw = {
4052 X550_COMMON_PHY
4053 .check_overtemp = NULL,
4054 .init = ixgbe_init_phy_ops_X550em,
4055 .identify = ixgbe_identify_phy_x550em,
4056 .read_reg = NULL,
4057 .write_reg = NULL,
4058 .read_reg_mdi = NULL,
4059 .write_reg_mdi = NULL,
4060};
4061
4062static const struct ixgbe_phy_operations phy_ops_x550em_a = {
4063 X550_COMMON_PHY
4064 .check_overtemp = &ixgbe_tn_check_overtemp,
4065 .init = &ixgbe_init_phy_ops_X550em,
4066 .identify = &ixgbe_identify_phy_x550em,
4067 .read_reg = &ixgbe_read_phy_reg_x550a,
4068 .write_reg = &ixgbe_write_phy_reg_x550a,
4069 .read_reg_mdi = &ixgbe_read_phy_reg_mdi,
4070 .write_reg_mdi = &ixgbe_write_phy_reg_mdi,
4071};
4072
4073static const struct ixgbe_phy_operations phy_ops_x550em_a_fw = {
4074 X550_COMMON_PHY
4075 .check_overtemp = ixgbe_check_overtemp_fw,
4076 .init = ixgbe_init_phy_ops_X550em,
4077 .identify = ixgbe_identify_phy_fw,
4078 .read_reg = NULL,
4079 .write_reg = NULL,
4080 .read_reg_mdi = NULL,
4081 .write_reg_mdi = NULL,
4082};
4083
4084static const struct ixgbe_link_operations link_ops_x550em_x = {
4085 .read_link = &ixgbe_read_i2c_combined_generic,
4086 .read_link_unlocked = &ixgbe_read_i2c_combined_generic_unlocked,
4087 .write_link = &ixgbe_write_i2c_combined_generic,
4088 .write_link_unlocked = &ixgbe_write_i2c_combined_generic_unlocked,
4089};
4090
4091static const u32 ixgbe_mvals_X550[IXGBE_MVALS_IDX_LIMIT] = {
4092 IXGBE_MVALS_INIT(X550)
4093};
4094
4095static const u32 ixgbe_mvals_X550EM_x[IXGBE_MVALS_IDX_LIMIT] = {
4096 IXGBE_MVALS_INIT(X550EM_x)
4097};
4098
4099static const u32 ixgbe_mvals_x550em_a[IXGBE_MVALS_IDX_LIMIT] = {
4100 IXGBE_MVALS_INIT(X550EM_a)
4101};
4102
4103const struct ixgbe_info ixgbe_X550_info = {
4104 .mac = ixgbe_mac_X550,
4105 .get_invariants = &ixgbe_get_invariants_X540,
4106 .mac_ops = &mac_ops_X550,
4107 .eeprom_ops = &eeprom_ops_X550,
4108 .phy_ops = &phy_ops_X550,
4109 .mbx_ops = &mbx_ops_generic,
4110 .mvals = ixgbe_mvals_X550,
4111};
4112
4113const struct ixgbe_info ixgbe_X550EM_x_info = {
4114 .mac = ixgbe_mac_X550EM_x,
4115 .get_invariants = &ixgbe_get_invariants_X550_x,
4116 .mac_ops = &mac_ops_X550EM_x,
4117 .eeprom_ops = &eeprom_ops_X550EM_x,
4118 .phy_ops = &phy_ops_X550EM_x,
4119 .mbx_ops = &mbx_ops_generic,
4120 .mvals = ixgbe_mvals_X550EM_x,
4121 .link_ops = &link_ops_x550em_x,
4122};
4123
4124const struct ixgbe_info ixgbe_x550em_x_fw_info = {
4125 .mac = ixgbe_mac_X550EM_x,
4126 .get_invariants = ixgbe_get_invariants_X550_x_fw,
4127 .mac_ops = &mac_ops_X550EM_x_fw,
4128 .eeprom_ops = &eeprom_ops_X550EM_x,
4129 .phy_ops = &phy_ops_x550em_x_fw,
4130 .mbx_ops = &mbx_ops_generic,
4131 .mvals = ixgbe_mvals_X550EM_x,
4132};
4133
4134const struct ixgbe_info ixgbe_x550em_a_info = {
4135 .mac = ixgbe_mac_x550em_a,
4136 .get_invariants = &ixgbe_get_invariants_X550_a,
4137 .mac_ops = &mac_ops_x550em_a,
4138 .eeprom_ops = &eeprom_ops_X550EM_x,
4139 .phy_ops = &phy_ops_x550em_a,
4140 .mbx_ops = &mbx_ops_generic,
4141 .mvals = ixgbe_mvals_x550em_a,
4142};
4143
4144const struct ixgbe_info ixgbe_x550em_a_fw_info = {
4145 .mac = ixgbe_mac_x550em_a,
4146 .get_invariants = ixgbe_get_invariants_X550_a_fw,
4147 .mac_ops = &mac_ops_x550em_a_fw,
4148 .eeprom_ops = &eeprom_ops_X550EM_x,
4149 .phy_ops = &phy_ops_x550em_a_fw,
4150 .mbx_ops = &mbx_ops_generic,
4151 .mvals = ixgbe_mvals_x550em_a,
4152};
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
9static s32 ixgbe_setup_kr_speed_x550em(struct ixgbe_hw *, ixgbe_link_speed);
10static s32 ixgbe_setup_fc_x550em(struct ixgbe_hw *);
11static void ixgbe_fc_autoneg_fiber_x550em_a(struct ixgbe_hw *);
12static void ixgbe_fc_autoneg_backplane_x550em_a(struct ixgbe_hw *);
13static s32 ixgbe_setup_fc_backplane_x550em_a(struct ixgbe_hw *);
14
15static 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
32static 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
44static 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
58static 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 **/
73static 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 */
94static 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 */
107static 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 */
120static 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 */
138static 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 */
156static 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, ®);
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, ®);
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, ®);
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, ®);
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 */
225static 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
285out:
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 */
295static 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
350static 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
356static 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 **/
371static 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 **/
386static s32
387ixgbe_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 **/
402static 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 **/
417static s32
418ixgbe_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 */
430s32 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
469static 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 */
487static 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 */
529static 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 */
548static 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 */
560static 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 */
614static 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 **/
628static 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 */
660static 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 **/
691static 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
724out:
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 */
733static 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 */
762static 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 **/
791static 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 **/
817static 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 **/
852static 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
911out:
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 **/
924static 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 **/
992static 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 **/
1069static 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 **/
1081static 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 **/
1119static 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 **/
1169static 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 **/
1197static 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 **/
1217static 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 **/
1239static 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 - Check FW NVM recovery mode
1252 * @hw: pointer t hardware structure
1253 *
1254 * Returns true if in FW NVM recovery mode.
1255 */
1256static 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 **/
1268static 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 **/
1312static 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 **/
1352static 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 **/
1388static 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
1421out:
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 **/
1432static 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, ®_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, ®_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, ®_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, ®_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 **/
1504static 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 **/
1553static 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, ®_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 */
1610static 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 */
1647static s32
1648ixgbe_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 **/
1693static 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, ®_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 status = 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 /* Toggle port SW reset by AN reset. */
1729 status = ixgbe_restart_an_internal_phy_x550em(hw);
1730
1731 return status;
1732}
1733
1734/**
1735 * ixgbe_setup_mac_link_sfp_n - Setup internal PHY for native SFP
1736 * @hw: pointer to hardware structure
1737 * @speed: link speed
1738 * @autoneg_wait_to_complete: unused
1739 *
1740 * Configure the the integrated PHY for native SFP support.
1741 */
1742static s32
1743ixgbe_setup_mac_link_sfp_n(struct ixgbe_hw *hw, ixgbe_link_speed speed,
1744 __always_unused bool autoneg_wait_to_complete)
1745{
1746 bool setup_linear = false;
1747 u32 reg_phy_int;
1748 s32 ret_val;
1749
1750 /* Check if SFP module is supported and linear */
1751 ret_val = ixgbe_supported_sfp_modules_X550em(hw, &setup_linear);
1752
1753 /* If no SFP module present, then return success. Return success since
1754 * SFP not present error is not excepted in the setup MAC link flow.
1755 */
1756 if (ret_val == IXGBE_ERR_SFP_NOT_PRESENT)
1757 return 0;
1758
1759 if (ret_val)
1760 return ret_val;
1761
1762 /* Configure internal PHY for native SFI based on module type */
1763 ret_val = hw->mac.ops.read_iosf_sb_reg(hw,
1764 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1765 IXGBE_SB_IOSF_TARGET_KR_PHY, ®_phy_int);
1766 if (ret_val)
1767 return ret_val;
1768
1769 reg_phy_int &= IXGBE_KRM_PMD_FLX_MASK_ST20_SFI_10G_DA;
1770 if (!setup_linear)
1771 reg_phy_int |= IXGBE_KRM_PMD_FLX_MASK_ST20_SFI_10G_SR;
1772
1773 ret_val = hw->mac.ops.write_iosf_sb_reg(hw,
1774 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1775 IXGBE_SB_IOSF_TARGET_KR_PHY, reg_phy_int);
1776 if (ret_val)
1777 return ret_val;
1778
1779 /* Setup SFI internal link. */
1780 return ixgbe_setup_sfi_x550a(hw, &speed);
1781}
1782
1783/**
1784 * ixgbe_setup_mac_link_sfp_x550a - Setup internal PHY for SFP
1785 * @hw: pointer to hardware structure
1786 * @speed: link speed
1787 * @autoneg_wait_to_complete: unused
1788 *
1789 * Configure the the integrated PHY for SFP support.
1790 */
1791static s32
1792ixgbe_setup_mac_link_sfp_x550a(struct ixgbe_hw *hw, ixgbe_link_speed speed,
1793 __always_unused bool autoneg_wait_to_complete)
1794{
1795 u32 reg_slice, slice_offset;
1796 bool setup_linear = false;
1797 u16 reg_phy_ext;
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 KR/KX. */
1813 ixgbe_setup_kr_speed_x550em(hw, speed);
1814
1815 if (hw->phy.mdio.prtad == MDIO_PRTAD_NONE)
1816 return IXGBE_ERR_PHY_ADDR_INVALID;
1817
1818 /* Get external PHY SKU id */
1819 ret_val = hw->phy.ops.read_reg(hw, IXGBE_CS4227_EFUSE_PDF_SKU,
1820 IXGBE_MDIO_ZERO_DEV_TYPE, ®_phy_ext);
1821 if (ret_val)
1822 return ret_val;
1823
1824 /* When configuring quad port CS4223, the MAC instance is part
1825 * of the slice offset.
1826 */
1827 if (reg_phy_ext == IXGBE_CS4223_SKU_ID)
1828 slice_offset = (hw->bus.lan_id +
1829 (hw->bus.instance_id << 1)) << 12;
1830 else
1831 slice_offset = hw->bus.lan_id << 12;
1832
1833 /* Configure CS4227/CS4223 LINE side to proper mode. */
1834 reg_slice = IXGBE_CS4227_LINE_SPARE24_LSB + slice_offset;
1835
1836 ret_val = hw->phy.ops.read_reg(hw, reg_slice,
1837 IXGBE_MDIO_ZERO_DEV_TYPE, ®_phy_ext);
1838 if (ret_val)
1839 return ret_val;
1840
1841 reg_phy_ext &= ~((IXGBE_CS4227_EDC_MODE_CX1 << 1) |
1842 (IXGBE_CS4227_EDC_MODE_SR << 1));
1843
1844 if (setup_linear)
1845 reg_phy_ext |= (IXGBE_CS4227_EDC_MODE_CX1 << 1) | 1;
1846 else
1847 reg_phy_ext |= (IXGBE_CS4227_EDC_MODE_SR << 1) | 1;
1848
1849 ret_val = hw->phy.ops.write_reg(hw, reg_slice,
1850 IXGBE_MDIO_ZERO_DEV_TYPE, reg_phy_ext);
1851 if (ret_val)
1852 return ret_val;
1853
1854 /* Flush previous write with a read */
1855 return hw->phy.ops.read_reg(hw, reg_slice,
1856 IXGBE_MDIO_ZERO_DEV_TYPE, ®_phy_ext);
1857}
1858
1859/**
1860 * ixgbe_setup_mac_link_t_X550em - Sets the auto advertised link speed
1861 * @hw: pointer to hardware structure
1862 * @speed: new link speed
1863 * @autoneg_wait: true when waiting for completion is needed
1864 *
1865 * Setup internal/external PHY link speed based on link speed, then set
1866 * external PHY auto advertised link speed.
1867 *
1868 * Returns error status for any failure
1869 **/
1870static s32 ixgbe_setup_mac_link_t_X550em(struct ixgbe_hw *hw,
1871 ixgbe_link_speed speed,
1872 bool autoneg_wait)
1873{
1874 s32 status;
1875 ixgbe_link_speed force_speed;
1876
1877 /* Setup internal/external PHY link speed to iXFI (10G), unless
1878 * only 1G is auto advertised then setup KX link.
1879 */
1880 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
1881 force_speed = IXGBE_LINK_SPEED_10GB_FULL;
1882 else
1883 force_speed = IXGBE_LINK_SPEED_1GB_FULL;
1884
1885 /* If X552 and internal link mode is XFI, then setup XFI internal link.
1886 */
1887 if (hw->mac.type == ixgbe_mac_X550EM_x &&
1888 !(hw->phy.nw_mng_if_sel & IXGBE_NW_MNG_IF_SEL_INT_PHY_MODE)) {
1889 status = ixgbe_setup_ixfi_x550em(hw, &force_speed);
1890
1891 if (status)
1892 return status;
1893 }
1894
1895 return hw->phy.ops.setup_link_speed(hw, speed, autoneg_wait);
1896}
1897
1898/** ixgbe_check_link_t_X550em - Determine link and speed status
1899 * @hw: pointer to hardware structure
1900 * @speed: pointer to link speed
1901 * @link_up: true when link is up
1902 * @link_up_wait_to_complete: bool used to wait for link up or not
1903 *
1904 * Check that both the MAC and X557 external PHY have link.
1905 **/
1906static s32 ixgbe_check_link_t_X550em(struct ixgbe_hw *hw,
1907 ixgbe_link_speed *speed,
1908 bool *link_up,
1909 bool link_up_wait_to_complete)
1910{
1911 u32 status;
1912 u16 i, autoneg_status;
1913
1914 if (hw->mac.ops.get_media_type(hw) != ixgbe_media_type_copper)
1915 return IXGBE_ERR_CONFIG;
1916
1917 status = ixgbe_check_mac_link_generic(hw, speed, link_up,
1918 link_up_wait_to_complete);
1919
1920 /* If check link fails or MAC link is not up, then return */
1921 if (status || !(*link_up))
1922 return status;
1923
1924 /* MAC link is up, so check external PHY link.
1925 * Link status is latching low, and can only be used to detect link
1926 * drop, and not the current status of the link without performing
1927 * back-to-back reads.
1928 */
1929 for (i = 0; i < 2; i++) {
1930 status = hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN,
1931 &autoneg_status);
1932
1933 if (status)
1934 return status;
1935 }
1936
1937 /* If external PHY link is not up, then indicate link not up */
1938 if (!(autoneg_status & IXGBE_MDIO_AUTO_NEG_LINK_STATUS))
1939 *link_up = false;
1940
1941 return 0;
1942}
1943
1944/**
1945 * ixgbe_setup_sgmii - Set up link for sgmii
1946 * @hw: pointer to hardware structure
1947 * @speed: unused
1948 * @autoneg_wait_to_complete: unused
1949 */
1950static s32
1951ixgbe_setup_sgmii(struct ixgbe_hw *hw, __always_unused ixgbe_link_speed speed,
1952 __always_unused bool autoneg_wait_to_complete)
1953{
1954 struct ixgbe_mac_info *mac = &hw->mac;
1955 u32 lval, sval, flx_val;
1956 s32 rc;
1957
1958 rc = mac->ops.read_iosf_sb_reg(hw,
1959 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1960 IXGBE_SB_IOSF_TARGET_KR_PHY, &lval);
1961 if (rc)
1962 return rc;
1963
1964 lval &= ~IXGBE_KRM_LINK_CTRL_1_TETH_AN_ENABLE;
1965 lval &= ~IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_MASK;
1966 lval |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_SGMII_EN;
1967 lval |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_CLAUSE_37_EN;
1968 lval |= IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_1G;
1969 rc = mac->ops.write_iosf_sb_reg(hw,
1970 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1971 IXGBE_SB_IOSF_TARGET_KR_PHY, lval);
1972 if (rc)
1973 return rc;
1974
1975 rc = mac->ops.read_iosf_sb_reg(hw,
1976 IXGBE_KRM_SGMII_CTRL(hw->bus.lan_id),
1977 IXGBE_SB_IOSF_TARGET_KR_PHY, &sval);
1978 if (rc)
1979 return rc;
1980
1981 sval |= IXGBE_KRM_SGMII_CTRL_MAC_TAR_FORCE_10_D;
1982 sval |= IXGBE_KRM_SGMII_CTRL_MAC_TAR_FORCE_100_D;
1983 rc = mac->ops.write_iosf_sb_reg(hw,
1984 IXGBE_KRM_SGMII_CTRL(hw->bus.lan_id),
1985 IXGBE_SB_IOSF_TARGET_KR_PHY, sval);
1986 if (rc)
1987 return rc;
1988
1989 rc = mac->ops.read_iosf_sb_reg(hw,
1990 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1991 IXGBE_SB_IOSF_TARGET_KR_PHY, &flx_val);
1992 if (rc)
1993 return rc;
1994
1995 rc = mac->ops.read_iosf_sb_reg(hw,
1996 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1997 IXGBE_SB_IOSF_TARGET_KR_PHY, &flx_val);
1998 if (rc)
1999 return rc;
2000
2001 flx_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_MASK;
2002 flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_1G;
2003 flx_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_AN_EN;
2004 flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SGMII_EN;
2005 flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_AN37_EN;
2006
2007 rc = mac->ops.write_iosf_sb_reg(hw,
2008 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2009 IXGBE_SB_IOSF_TARGET_KR_PHY, flx_val);
2010 if (rc)
2011 return rc;
2012
2013 rc = ixgbe_restart_an_internal_phy_x550em(hw);
2014 return rc;
2015}
2016
2017/**
2018 * ixgbe_setup_sgmii_fw - Set up link for sgmii with firmware-controlled PHYs
2019 * @hw: pointer to hardware structure
2020 * @speed: the link speed to force
2021 * @autoneg_wait: true when waiting for completion is needed
2022 */
2023static s32 ixgbe_setup_sgmii_fw(struct ixgbe_hw *hw, ixgbe_link_speed speed,
2024 bool autoneg_wait)
2025{
2026 struct ixgbe_mac_info *mac = &hw->mac;
2027 u32 lval, sval, flx_val;
2028 s32 rc;
2029
2030 rc = mac->ops.read_iosf_sb_reg(hw,
2031 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2032 IXGBE_SB_IOSF_TARGET_KR_PHY, &lval);
2033 if (rc)
2034 return rc;
2035
2036 lval &= ~IXGBE_KRM_LINK_CTRL_1_TETH_AN_ENABLE;
2037 lval &= ~IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_MASK;
2038 lval |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_SGMII_EN;
2039 lval |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_CLAUSE_37_EN;
2040 lval &= ~IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_1G;
2041 rc = mac->ops.write_iosf_sb_reg(hw,
2042 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2043 IXGBE_SB_IOSF_TARGET_KR_PHY, lval);
2044 if (rc)
2045 return rc;
2046
2047 rc = mac->ops.read_iosf_sb_reg(hw,
2048 IXGBE_KRM_SGMII_CTRL(hw->bus.lan_id),
2049 IXGBE_SB_IOSF_TARGET_KR_PHY, &sval);
2050 if (rc)
2051 return rc;
2052
2053 sval &= ~IXGBE_KRM_SGMII_CTRL_MAC_TAR_FORCE_10_D;
2054 sval &= ~IXGBE_KRM_SGMII_CTRL_MAC_TAR_FORCE_100_D;
2055 rc = mac->ops.write_iosf_sb_reg(hw,
2056 IXGBE_KRM_SGMII_CTRL(hw->bus.lan_id),
2057 IXGBE_SB_IOSF_TARGET_KR_PHY, sval);
2058 if (rc)
2059 return rc;
2060
2061 rc = mac->ops.write_iosf_sb_reg(hw,
2062 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2063 IXGBE_SB_IOSF_TARGET_KR_PHY, lval);
2064 if (rc)
2065 return rc;
2066
2067 rc = mac->ops.read_iosf_sb_reg(hw,
2068 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2069 IXGBE_SB_IOSF_TARGET_KR_PHY, &flx_val);
2070 if (rc)
2071 return rc;
2072
2073 flx_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_MASK;
2074 flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_AN;
2075 flx_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_AN_EN;
2076 flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SGMII_EN;
2077 flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_AN37_EN;
2078
2079 rc = mac->ops.write_iosf_sb_reg(hw,
2080 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2081 IXGBE_SB_IOSF_TARGET_KR_PHY, flx_val);
2082 if (rc)
2083 return rc;
2084
2085 ixgbe_restart_an_internal_phy_x550em(hw);
2086
2087 return hw->phy.ops.setup_link_speed(hw, speed, autoneg_wait);
2088}
2089
2090/**
2091 * ixgbe_fc_autoneg_sgmii_x550em_a - Enable flow control IEEE clause 37
2092 * @hw: pointer to hardware structure
2093 *
2094 * Enable flow control according to IEEE clause 37.
2095 */
2096static void ixgbe_fc_autoneg_sgmii_x550em_a(struct ixgbe_hw *hw)
2097{
2098 s32 status = IXGBE_ERR_FC_NOT_NEGOTIATED;
2099 u32 info[FW_PHY_ACT_DATA_COUNT] = { 0 };
2100 ixgbe_link_speed speed;
2101 bool link_up;
2102
2103 /* AN should have completed when the cable was plugged in.
2104 * Look for reasons to bail out. Bail out if:
2105 * - FC autoneg is disabled, or if
2106 * - link is not up.
2107 */
2108 if (hw->fc.disable_fc_autoneg)
2109 goto out;
2110
2111 hw->mac.ops.check_link(hw, &speed, &link_up, false);
2112 if (!link_up)
2113 goto out;
2114
2115 /* Check if auto-negotiation has completed */
2116 status = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_GET_LINK_INFO, &info);
2117 if (status || !(info[0] & FW_PHY_ACT_GET_LINK_INFO_AN_COMPLETE)) {
2118 status = IXGBE_ERR_FC_NOT_NEGOTIATED;
2119 goto out;
2120 }
2121
2122 /* Negotiate the flow control */
2123 status = ixgbe_negotiate_fc(hw, info[0], info[0],
2124 FW_PHY_ACT_GET_LINK_INFO_FC_RX,
2125 FW_PHY_ACT_GET_LINK_INFO_FC_TX,
2126 FW_PHY_ACT_GET_LINK_INFO_LP_FC_RX,
2127 FW_PHY_ACT_GET_LINK_INFO_LP_FC_TX);
2128
2129out:
2130 if (!status) {
2131 hw->fc.fc_was_autonegged = true;
2132 } else {
2133 hw->fc.fc_was_autonegged = false;
2134 hw->fc.current_mode = hw->fc.requested_mode;
2135 }
2136}
2137
2138/** ixgbe_init_mac_link_ops_X550em_a - Init mac link function pointers
2139 * @hw: pointer to hardware structure
2140 **/
2141static void ixgbe_init_mac_link_ops_X550em_a(struct ixgbe_hw *hw)
2142{
2143 struct ixgbe_mac_info *mac = &hw->mac;
2144
2145 switch (mac->ops.get_media_type(hw)) {
2146 case ixgbe_media_type_fiber:
2147 mac->ops.setup_fc = NULL;
2148 mac->ops.fc_autoneg = ixgbe_fc_autoneg_fiber_x550em_a;
2149 break;
2150 case ixgbe_media_type_copper:
2151 if (hw->device_id != IXGBE_DEV_ID_X550EM_A_1G_T &&
2152 hw->device_id != IXGBE_DEV_ID_X550EM_A_1G_T_L) {
2153 mac->ops.setup_link = ixgbe_setup_mac_link_t_X550em;
2154 break;
2155 }
2156 mac->ops.fc_autoneg = ixgbe_fc_autoneg_sgmii_x550em_a;
2157 mac->ops.setup_fc = ixgbe_fc_autoneg_fw;
2158 mac->ops.setup_link = ixgbe_setup_sgmii_fw;
2159 mac->ops.check_link = ixgbe_check_mac_link_generic;
2160 break;
2161 case ixgbe_media_type_backplane:
2162 mac->ops.fc_autoneg = ixgbe_fc_autoneg_backplane_x550em_a;
2163 mac->ops.setup_fc = ixgbe_setup_fc_backplane_x550em_a;
2164 break;
2165 default:
2166 break;
2167 }
2168}
2169
2170/** ixgbe_init_mac_link_ops_X550em - init mac link function pointers
2171 * @hw: pointer to hardware structure
2172 **/
2173static void ixgbe_init_mac_link_ops_X550em(struct ixgbe_hw *hw)
2174{
2175 struct ixgbe_mac_info *mac = &hw->mac;
2176
2177 mac->ops.setup_fc = ixgbe_setup_fc_x550em;
2178
2179 switch (mac->ops.get_media_type(hw)) {
2180 case ixgbe_media_type_fiber:
2181 /* CS4227 does not support autoneg, so disable the laser control
2182 * functions for SFP+ fiber
2183 */
2184 mac->ops.disable_tx_laser = NULL;
2185 mac->ops.enable_tx_laser = NULL;
2186 mac->ops.flap_tx_laser = NULL;
2187 mac->ops.setup_link = ixgbe_setup_mac_link_multispeed_fiber;
2188 switch (hw->device_id) {
2189 case IXGBE_DEV_ID_X550EM_A_SFP_N:
2190 mac->ops.setup_mac_link = ixgbe_setup_mac_link_sfp_n;
2191 break;
2192 case IXGBE_DEV_ID_X550EM_A_SFP:
2193 mac->ops.setup_mac_link =
2194 ixgbe_setup_mac_link_sfp_x550a;
2195 break;
2196 default:
2197 mac->ops.setup_mac_link =
2198 ixgbe_setup_mac_link_sfp_x550em;
2199 break;
2200 }
2201 mac->ops.set_rate_select_speed =
2202 ixgbe_set_soft_rate_select_speed;
2203 break;
2204 case ixgbe_media_type_copper:
2205 if (hw->device_id == IXGBE_DEV_ID_X550EM_X_1G_T)
2206 break;
2207 mac->ops.setup_link = ixgbe_setup_mac_link_t_X550em;
2208 mac->ops.setup_fc = ixgbe_setup_fc_generic;
2209 mac->ops.check_link = ixgbe_check_link_t_X550em;
2210 break;
2211 case ixgbe_media_type_backplane:
2212 if (hw->device_id == IXGBE_DEV_ID_X550EM_A_SGMII ||
2213 hw->device_id == IXGBE_DEV_ID_X550EM_A_SGMII_L)
2214 mac->ops.setup_link = ixgbe_setup_sgmii;
2215 break;
2216 default:
2217 break;
2218 }
2219
2220 /* Additional modification for X550em_a devices */
2221 if (hw->mac.type == ixgbe_mac_x550em_a)
2222 ixgbe_init_mac_link_ops_X550em_a(hw);
2223}
2224
2225/** ixgbe_setup_sfp_modules_X550em - Setup SFP module
2226 * @hw: pointer to hardware structure
2227 */
2228static s32 ixgbe_setup_sfp_modules_X550em(struct ixgbe_hw *hw)
2229{
2230 s32 status;
2231 bool linear;
2232
2233 /* Check if SFP module is supported */
2234 status = ixgbe_supported_sfp_modules_X550em(hw, &linear);
2235 if (status)
2236 return status;
2237
2238 ixgbe_init_mac_link_ops_X550em(hw);
2239 hw->phy.ops.reset = NULL;
2240
2241 return 0;
2242}
2243
2244/** ixgbe_get_link_capabilities_x550em - Determines link capabilities
2245 * @hw: pointer to hardware structure
2246 * @speed: pointer to link speed
2247 * @autoneg: true when autoneg or autotry is enabled
2248 **/
2249static s32 ixgbe_get_link_capabilities_X550em(struct ixgbe_hw *hw,
2250 ixgbe_link_speed *speed,
2251 bool *autoneg)
2252{
2253 if (hw->phy.type == ixgbe_phy_fw) {
2254 *autoneg = true;
2255 *speed = hw->phy.speeds_supported;
2256 return 0;
2257 }
2258
2259 /* SFP */
2260 if (hw->phy.media_type == ixgbe_media_type_fiber) {
2261 /* CS4227 SFP must not enable auto-negotiation */
2262 *autoneg = false;
2263
2264 if (hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core0 ||
2265 hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core1 ||
2266 hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core0 ||
2267 hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core1) {
2268 *speed = IXGBE_LINK_SPEED_1GB_FULL;
2269 return 0;
2270 }
2271
2272 /* Link capabilities are based on SFP */
2273 if (hw->phy.multispeed_fiber)
2274 *speed = IXGBE_LINK_SPEED_10GB_FULL |
2275 IXGBE_LINK_SPEED_1GB_FULL;
2276 else
2277 *speed = IXGBE_LINK_SPEED_10GB_FULL;
2278 } else {
2279 switch (hw->phy.type) {
2280 case ixgbe_phy_x550em_kx4:
2281 *speed = IXGBE_LINK_SPEED_1GB_FULL |
2282 IXGBE_LINK_SPEED_2_5GB_FULL |
2283 IXGBE_LINK_SPEED_10GB_FULL;
2284 break;
2285 case ixgbe_phy_x550em_xfi:
2286 *speed = IXGBE_LINK_SPEED_1GB_FULL |
2287 IXGBE_LINK_SPEED_10GB_FULL;
2288 break;
2289 case ixgbe_phy_ext_1g_t:
2290 case ixgbe_phy_sgmii:
2291 *speed = IXGBE_LINK_SPEED_1GB_FULL;
2292 break;
2293 case ixgbe_phy_x550em_kr:
2294 if (hw->mac.type == ixgbe_mac_x550em_a) {
2295 /* check different backplane modes */
2296 if (hw->phy.nw_mng_if_sel &
2297 IXGBE_NW_MNG_IF_SEL_PHY_SPEED_2_5G) {
2298 *speed = IXGBE_LINK_SPEED_2_5GB_FULL;
2299 break;
2300 } else if (hw->device_id ==
2301 IXGBE_DEV_ID_X550EM_A_KR_L) {
2302 *speed = IXGBE_LINK_SPEED_1GB_FULL;
2303 break;
2304 }
2305 }
2306 /* fall through */
2307 default:
2308 *speed = IXGBE_LINK_SPEED_10GB_FULL |
2309 IXGBE_LINK_SPEED_1GB_FULL;
2310 break;
2311 }
2312 *autoneg = true;
2313 }
2314 return 0;
2315}
2316
2317/**
2318 * ixgbe_get_lasi_ext_t_x550em - Determime external Base T PHY interrupt cause
2319 * @hw: pointer to hardware structure
2320 * @lsc: pointer to boolean flag which indicates whether external Base T
2321 * PHY interrupt is lsc
2322 *
2323 * Determime if external Base T PHY interrupt cause is high temperature
2324 * failure alarm or link status change.
2325 *
2326 * Return IXGBE_ERR_OVERTEMP if interrupt is high temperature
2327 * failure alarm, else return PHY access status.
2328 **/
2329static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
2330{
2331 u32 status;
2332 u16 reg;
2333
2334 *lsc = false;
2335
2336 /* Vendor alarm triggered */
2337 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_CHIP_STD_INT_FLAG,
2338 MDIO_MMD_VEND1,
2339 ®);
2340
2341 if (status || !(reg & IXGBE_MDIO_GLOBAL_VEN_ALM_INT_EN))
2342 return status;
2343
2344 /* Vendor Auto-Neg alarm triggered or Global alarm 1 triggered */
2345 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_VEN_FLAG,
2346 MDIO_MMD_VEND1,
2347 ®);
2348
2349 if (status || !(reg & (IXGBE_MDIO_GLOBAL_AN_VEN_ALM_INT_EN |
2350 IXGBE_MDIO_GLOBAL_ALARM_1_INT)))
2351 return status;
2352
2353 /* Global alarm triggered */
2354 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_ALARM_1,
2355 MDIO_MMD_VEND1,
2356 ®);
2357
2358 if (status)
2359 return status;
2360
2361 /* If high temperature failure, then return over temp error and exit */
2362 if (reg & IXGBE_MDIO_GLOBAL_ALM_1_HI_TMP_FAIL) {
2363 /* power down the PHY in case the PHY FW didn't already */
2364 ixgbe_set_copper_phy_power(hw, false);
2365 return IXGBE_ERR_OVERTEMP;
2366 }
2367 if (reg & IXGBE_MDIO_GLOBAL_ALM_1_DEV_FAULT) {
2368 /* device fault alarm triggered */
2369 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_FAULT_MSG,
2370 MDIO_MMD_VEND1,
2371 ®);
2372 if (status)
2373 return status;
2374
2375 /* if device fault was due to high temp alarm handle and exit */
2376 if (reg == IXGBE_MDIO_GLOBAL_FAULT_MSG_HI_TMP) {
2377 /* power down the PHY in case the PHY FW didn't */
2378 ixgbe_set_copper_phy_power(hw, false);
2379 return IXGBE_ERR_OVERTEMP;
2380 }
2381 }
2382
2383 /* Vendor alarm 2 triggered */
2384 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_CHIP_STD_INT_FLAG,
2385 MDIO_MMD_AN, ®);
2386
2387 if (status || !(reg & IXGBE_MDIO_GLOBAL_STD_ALM2_INT))
2388 return status;
2389
2390 /* link connect/disconnect event occurred */
2391 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_VENDOR_TX_ALARM2,
2392 MDIO_MMD_AN, ®);
2393
2394 if (status)
2395 return status;
2396
2397 /* Indicate LSC */
2398 if (reg & IXGBE_MDIO_AUTO_NEG_VEN_LSC)
2399 *lsc = true;
2400
2401 return 0;
2402}
2403
2404/**
2405 * ixgbe_enable_lasi_ext_t_x550em - Enable external Base T PHY interrupts
2406 * @hw: pointer to hardware structure
2407 *
2408 * Enable link status change and temperature failure alarm for the external
2409 * Base T PHY
2410 *
2411 * Returns PHY access status
2412 **/
2413static s32 ixgbe_enable_lasi_ext_t_x550em(struct ixgbe_hw *hw)
2414{
2415 u32 status;
2416 u16 reg;
2417 bool lsc;
2418
2419 /* Clear interrupt flags */
2420 status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc);
2421
2422 /* Enable link status change alarm */
2423
2424 /* Enable the LASI interrupts on X552 devices to receive notifications
2425 * of the link configurations of the external PHY and correspondingly
2426 * support the configuration of the internal iXFI link, since iXFI does
2427 * not support auto-negotiation. This is not required for X553 devices
2428 * having KR support, which performs auto-negotiations and which is used
2429 * as the internal link to the external PHY. Hence adding a check here
2430 * to avoid enabling LASI interrupts for X553 devices.
2431 */
2432 if (hw->mac.type != ixgbe_mac_x550em_a) {
2433 status = hw->phy.ops.read_reg(hw,
2434 IXGBE_MDIO_PMA_TX_VEN_LASI_INT_MASK,
2435 MDIO_MMD_AN, ®);
2436 if (status)
2437 return status;
2438
2439 reg |= IXGBE_MDIO_PMA_TX_VEN_LASI_INT_EN;
2440
2441 status = hw->phy.ops.write_reg(hw,
2442 IXGBE_MDIO_PMA_TX_VEN_LASI_INT_MASK,
2443 MDIO_MMD_AN, reg);
2444 if (status)
2445 return status;
2446 }
2447
2448 /* Enable high temperature failure and global fault alarms */
2449 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_INT_MASK,
2450 MDIO_MMD_VEND1,
2451 ®);
2452 if (status)
2453 return status;
2454
2455 reg |= (IXGBE_MDIO_GLOBAL_INT_HI_TEMP_EN |
2456 IXGBE_MDIO_GLOBAL_INT_DEV_FAULT_EN);
2457
2458 status = hw->phy.ops.write_reg(hw, IXGBE_MDIO_GLOBAL_INT_MASK,
2459 MDIO_MMD_VEND1,
2460 reg);
2461 if (status)
2462 return status;
2463
2464 /* Enable vendor Auto-Neg alarm and Global Interrupt Mask 1 alarm */
2465 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_VEN_MASK,
2466 MDIO_MMD_VEND1,
2467 ®);
2468 if (status)
2469 return status;
2470
2471 reg |= (IXGBE_MDIO_GLOBAL_AN_VEN_ALM_INT_EN |
2472 IXGBE_MDIO_GLOBAL_ALARM_1_INT);
2473
2474 status = hw->phy.ops.write_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_VEN_MASK,
2475 MDIO_MMD_VEND1,
2476 reg);
2477 if (status)
2478 return status;
2479
2480 /* Enable chip-wide vendor alarm */
2481 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_STD_MASK,
2482 MDIO_MMD_VEND1,
2483 ®);
2484 if (status)
2485 return status;
2486
2487 reg |= IXGBE_MDIO_GLOBAL_VEN_ALM_INT_EN;
2488
2489 status = hw->phy.ops.write_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_STD_MASK,
2490 MDIO_MMD_VEND1,
2491 reg);
2492
2493 return status;
2494}
2495
2496/**
2497 * ixgbe_handle_lasi_ext_t_x550em - Handle external Base T PHY interrupt
2498 * @hw: pointer to hardware structure
2499 *
2500 * Handle external Base T PHY interrupt. If high temperature
2501 * failure alarm then return error, else if link status change
2502 * then setup internal/external PHY link
2503 *
2504 * Return IXGBE_ERR_OVERTEMP if interrupt is high temperature
2505 * failure alarm, else return PHY access status.
2506 **/
2507static s32 ixgbe_handle_lasi_ext_t_x550em(struct ixgbe_hw *hw)
2508{
2509 struct ixgbe_phy_info *phy = &hw->phy;
2510 bool lsc;
2511 u32 status;
2512
2513 status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc);
2514 if (status)
2515 return status;
2516
2517 if (lsc && phy->ops.setup_internal_link)
2518 return phy->ops.setup_internal_link(hw);
2519
2520 return 0;
2521}
2522
2523/**
2524 * ixgbe_setup_kr_speed_x550em - Configure the KR PHY for link speed.
2525 * @hw: pointer to hardware structure
2526 * @speed: link speed
2527 *
2528 * Configures the integrated KR PHY.
2529 **/
2530static s32 ixgbe_setup_kr_speed_x550em(struct ixgbe_hw *hw,
2531 ixgbe_link_speed speed)
2532{
2533 s32 status;
2534 u32 reg_val;
2535
2536 status = hw->mac.ops.read_iosf_sb_reg(hw,
2537 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2538 IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val);
2539 if (status)
2540 return status;
2541
2542 reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_ENABLE;
2543 reg_val &= ~(IXGBE_KRM_LINK_CTRL_1_TETH_AN_CAP_KR |
2544 IXGBE_KRM_LINK_CTRL_1_TETH_AN_CAP_KX);
2545
2546 /* Advertise 10G support. */
2547 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
2548 reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_CAP_KR;
2549
2550 /* Advertise 1G support. */
2551 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
2552 reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_CAP_KX;
2553
2554 status = hw->mac.ops.write_iosf_sb_reg(hw,
2555 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2556 IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
2557
2558 if (hw->mac.type == ixgbe_mac_x550em_a) {
2559 /* Set lane mode to KR auto negotiation */
2560 status = hw->mac.ops.read_iosf_sb_reg(hw,
2561 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2562 IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val);
2563
2564 if (status)
2565 return status;
2566
2567 reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_MASK;
2568 reg_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_AN;
2569 reg_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_AN_EN;
2570 reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_AN37_EN;
2571 reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SGMII_EN;
2572
2573 status = hw->mac.ops.write_iosf_sb_reg(hw,
2574 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2575 IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
2576 }
2577
2578 return ixgbe_restart_an_internal_phy_x550em(hw);
2579}
2580
2581/**
2582 * ixgbe_setup_kr_x550em - Configure the KR PHY
2583 * @hw: pointer to hardware structure
2584 **/
2585static s32 ixgbe_setup_kr_x550em(struct ixgbe_hw *hw)
2586{
2587 /* leave link alone for 2.5G */
2588 if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_2_5GB_FULL)
2589 return 0;
2590
2591 if (ixgbe_check_reset_blocked(hw))
2592 return 0;
2593
2594 return ixgbe_setup_kr_speed_x550em(hw, hw->phy.autoneg_advertised);
2595}
2596
2597/** ixgbe_ext_phy_t_x550em_get_link - Get ext phy link status
2598 * @hw: address of hardware structure
2599 * @link_up: address of boolean to indicate link status
2600 *
2601 * Returns error code if unable to get link status.
2602 **/
2603static s32 ixgbe_ext_phy_t_x550em_get_link(struct ixgbe_hw *hw, bool *link_up)
2604{
2605 u32 ret;
2606 u16 autoneg_status;
2607
2608 *link_up = false;
2609
2610 /* read this twice back to back to indicate current status */
2611 ret = hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN,
2612 &autoneg_status);
2613 if (ret)
2614 return ret;
2615
2616 ret = hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN,
2617 &autoneg_status);
2618 if (ret)
2619 return ret;
2620
2621 *link_up = !!(autoneg_status & IXGBE_MDIO_AUTO_NEG_LINK_STATUS);
2622
2623 return 0;
2624}
2625
2626/** ixgbe_setup_internal_phy_t_x550em - Configure KR PHY to X557 link
2627 * @hw: point to hardware structure
2628 *
2629 * Configures the link between the integrated KR PHY and the external X557 PHY
2630 * The driver will call this function when it gets a link status change
2631 * interrupt from the X557 PHY. This function configures the link speed
2632 * between the PHYs to match the link speed of the BASE-T link.
2633 *
2634 * A return of a non-zero value indicates an error, and the base driver should
2635 * not report link up.
2636 **/
2637static s32 ixgbe_setup_internal_phy_t_x550em(struct ixgbe_hw *hw)
2638{
2639 ixgbe_link_speed force_speed;
2640 bool link_up;
2641 u32 status;
2642 u16 speed;
2643
2644 if (hw->mac.ops.get_media_type(hw) != ixgbe_media_type_copper)
2645 return IXGBE_ERR_CONFIG;
2646
2647 if (!(hw->mac.type == ixgbe_mac_X550EM_x &&
2648 !(hw->phy.nw_mng_if_sel & IXGBE_NW_MNG_IF_SEL_INT_PHY_MODE))) {
2649 speed = IXGBE_LINK_SPEED_10GB_FULL |
2650 IXGBE_LINK_SPEED_1GB_FULL;
2651 return ixgbe_setup_kr_speed_x550em(hw, speed);
2652 }
2653
2654 /* If link is not up, then there is no setup necessary so return */
2655 status = ixgbe_ext_phy_t_x550em_get_link(hw, &link_up);
2656 if (status)
2657 return status;
2658
2659 if (!link_up)
2660 return 0;
2661
2662 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_VENDOR_STAT,
2663 MDIO_MMD_AN,
2664 &speed);
2665 if (status)
2666 return status;
2667
2668 /* If link is not still up, then no setup is necessary so return */
2669 status = ixgbe_ext_phy_t_x550em_get_link(hw, &link_up);
2670 if (status)
2671 return status;
2672
2673 if (!link_up)
2674 return 0;
2675
2676 /* clear everything but the speed and duplex bits */
2677 speed &= IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_MASK;
2678
2679 switch (speed) {
2680 case IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_10GB_FULL:
2681 force_speed = IXGBE_LINK_SPEED_10GB_FULL;
2682 break;
2683 case IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_1GB_FULL:
2684 force_speed = IXGBE_LINK_SPEED_1GB_FULL;
2685 break;
2686 default:
2687 /* Internal PHY does not support anything else */
2688 return IXGBE_ERR_INVALID_LINK_SETTINGS;
2689 }
2690
2691 return ixgbe_setup_ixfi_x550em(hw, &force_speed);
2692}
2693
2694/** ixgbe_reset_phy_t_X550em - Performs X557 PHY reset and enables LASI
2695 * @hw: pointer to hardware structure
2696 **/
2697static s32 ixgbe_reset_phy_t_X550em(struct ixgbe_hw *hw)
2698{
2699 s32 status;
2700
2701 status = ixgbe_reset_phy_generic(hw);
2702
2703 if (status)
2704 return status;
2705
2706 /* Configure Link Status Alarm and Temperature Threshold interrupts */
2707 return ixgbe_enable_lasi_ext_t_x550em(hw);
2708}
2709
2710/**
2711 * ixgbe_led_on_t_x550em - Turns on the software controllable LEDs.
2712 * @hw: pointer to hardware structure
2713 * @led_idx: led number to turn on
2714 **/
2715static s32 ixgbe_led_on_t_x550em(struct ixgbe_hw *hw, u32 led_idx)
2716{
2717 u16 phy_data;
2718
2719 if (led_idx >= IXGBE_X557_MAX_LED_INDEX)
2720 return IXGBE_ERR_PARAM;
2721
2722 /* To turn on the LED, set mode to ON. */
2723 hw->phy.ops.read_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx,
2724 MDIO_MMD_VEND1, &phy_data);
2725 phy_data |= IXGBE_X557_LED_MANUAL_SET_MASK;
2726 hw->phy.ops.write_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx,
2727 MDIO_MMD_VEND1, phy_data);
2728
2729 return 0;
2730}
2731
2732/**
2733 * ixgbe_led_off_t_x550em - Turns off the software controllable LEDs.
2734 * @hw: pointer to hardware structure
2735 * @led_idx: led number to turn off
2736 **/
2737static s32 ixgbe_led_off_t_x550em(struct ixgbe_hw *hw, u32 led_idx)
2738{
2739 u16 phy_data;
2740
2741 if (led_idx >= IXGBE_X557_MAX_LED_INDEX)
2742 return IXGBE_ERR_PARAM;
2743
2744 /* To turn on the LED, set mode to ON. */
2745 hw->phy.ops.read_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx,
2746 MDIO_MMD_VEND1, &phy_data);
2747 phy_data &= ~IXGBE_X557_LED_MANUAL_SET_MASK;
2748 hw->phy.ops.write_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx,
2749 MDIO_MMD_VEND1, phy_data);
2750
2751 return 0;
2752}
2753
2754/**
2755 * ixgbe_set_fw_drv_ver_x550 - Sends driver version to firmware
2756 * @hw: pointer to the HW structure
2757 * @maj: driver version major number
2758 * @min: driver version minor number
2759 * @build: driver version build number
2760 * @sub: driver version sub build number
2761 * @len: length of driver_ver string
2762 * @driver_ver: driver string
2763 *
2764 * Sends driver version number to firmware through the manageability
2765 * block. On success return 0
2766 * else returns IXGBE_ERR_SWFW_SYNC when encountering an error acquiring
2767 * semaphore or IXGBE_ERR_HOST_INTERFACE_COMMAND when command fails.
2768 **/
2769static s32 ixgbe_set_fw_drv_ver_x550(struct ixgbe_hw *hw, u8 maj, u8 min,
2770 u8 build, u8 sub, u16 len,
2771 const char *driver_ver)
2772{
2773 struct ixgbe_hic_drv_info2 fw_cmd;
2774 s32 ret_val;
2775 int i;
2776
2777 if (!len || !driver_ver || (len > sizeof(fw_cmd.driver_string)))
2778 return IXGBE_ERR_INVALID_ARGUMENT;
2779
2780 fw_cmd.hdr.cmd = FW_CEM_CMD_DRIVER_INFO;
2781 fw_cmd.hdr.buf_len = FW_CEM_CMD_DRIVER_INFO_LEN + len;
2782 fw_cmd.hdr.cmd_or_resp.cmd_resv = FW_CEM_CMD_RESERVED;
2783 fw_cmd.port_num = (u8)hw->bus.func;
2784 fw_cmd.ver_maj = maj;
2785 fw_cmd.ver_min = min;
2786 fw_cmd.ver_build = build;
2787 fw_cmd.ver_sub = sub;
2788 fw_cmd.hdr.checksum = 0;
2789 memcpy(fw_cmd.driver_string, driver_ver, len);
2790 fw_cmd.hdr.checksum = ixgbe_calculate_checksum((u8 *)&fw_cmd,
2791 (FW_CEM_HDR_LEN + fw_cmd.hdr.buf_len));
2792
2793 for (i = 0; i <= FW_CEM_MAX_RETRIES; i++) {
2794 ret_val = ixgbe_host_interface_command(hw, (u32 *)&fw_cmd,
2795 sizeof(fw_cmd),
2796 IXGBE_HI_COMMAND_TIMEOUT,
2797 true);
2798 if (ret_val)
2799 continue;
2800
2801 if (fw_cmd.hdr.cmd_or_resp.ret_status !=
2802 FW_CEM_RESP_STATUS_SUCCESS)
2803 return IXGBE_ERR_HOST_INTERFACE_COMMAND;
2804 return 0;
2805 }
2806
2807 return ret_val;
2808}
2809
2810/** ixgbe_get_lcd_x550em - Determine lowest common denominator
2811 * @hw: pointer to hardware structure
2812 * @lcd_speed: pointer to lowest common link speed
2813 *
2814 * Determine lowest common link speed with link partner.
2815 **/
2816static s32 ixgbe_get_lcd_t_x550em(struct ixgbe_hw *hw,
2817 ixgbe_link_speed *lcd_speed)
2818{
2819 u16 an_lp_status;
2820 s32 status;
2821 u16 word = hw->eeprom.ctrl_word_3;
2822
2823 *lcd_speed = IXGBE_LINK_SPEED_UNKNOWN;
2824
2825 status = hw->phy.ops.read_reg(hw, IXGBE_AUTO_NEG_LP_STATUS,
2826 MDIO_MMD_AN,
2827 &an_lp_status);
2828 if (status)
2829 return status;
2830
2831 /* If link partner advertised 1G, return 1G */
2832 if (an_lp_status & IXGBE_AUTO_NEG_LP_1000BASE_CAP) {
2833 *lcd_speed = IXGBE_LINK_SPEED_1GB_FULL;
2834 return status;
2835 }
2836
2837 /* If 10G disabled for LPLU via NVM D10GMP, then return no valid LCD */
2838 if ((hw->bus.lan_id && (word & NVM_INIT_CTRL_3_D10GMP_PORT1)) ||
2839 (word & NVM_INIT_CTRL_3_D10GMP_PORT0))
2840 return status;
2841
2842 /* Link partner not capable of lower speeds, return 10G */
2843 *lcd_speed = IXGBE_LINK_SPEED_10GB_FULL;
2844 return status;
2845}
2846
2847/**
2848 * ixgbe_setup_fc_x550em - Set up flow control
2849 * @hw: pointer to hardware structure
2850 */
2851static s32 ixgbe_setup_fc_x550em(struct ixgbe_hw *hw)
2852{
2853 bool pause, asm_dir;
2854 u32 reg_val;
2855 s32 rc = 0;
2856
2857 /* Validate the requested mode */
2858 if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
2859 hw_err(hw, "ixgbe_fc_rx_pause not valid in strict IEEE mode\n");
2860 return IXGBE_ERR_INVALID_LINK_SETTINGS;
2861 }
2862
2863 /* 10gig parts do not have a word in the EEPROM to determine the
2864 * default flow control setting, so we explicitly set it to full.
2865 */
2866 if (hw->fc.requested_mode == ixgbe_fc_default)
2867 hw->fc.requested_mode = ixgbe_fc_full;
2868
2869 /* Determine PAUSE and ASM_DIR bits. */
2870 switch (hw->fc.requested_mode) {
2871 case ixgbe_fc_none:
2872 pause = false;
2873 asm_dir = false;
2874 break;
2875 case ixgbe_fc_tx_pause:
2876 pause = false;
2877 asm_dir = true;
2878 break;
2879 case ixgbe_fc_rx_pause:
2880 /* Rx Flow control is enabled and Tx Flow control is
2881 * disabled by software override. Since there really
2882 * isn't a way to advertise that we are capable of RX
2883 * Pause ONLY, we will advertise that we support both
2884 * symmetric and asymmetric Rx PAUSE, as such we fall
2885 * through to the fc_full statement. Later, we will
2886 * disable the adapter's ability to send PAUSE frames.
2887 */
2888 /* Fallthrough */
2889 case ixgbe_fc_full:
2890 pause = true;
2891 asm_dir = true;
2892 break;
2893 default:
2894 hw_err(hw, "Flow control param set incorrectly\n");
2895 return IXGBE_ERR_CONFIG;
2896 }
2897
2898 switch (hw->device_id) {
2899 case IXGBE_DEV_ID_X550EM_X_KR:
2900 case IXGBE_DEV_ID_X550EM_A_KR:
2901 case IXGBE_DEV_ID_X550EM_A_KR_L:
2902 rc = hw->mac.ops.read_iosf_sb_reg(hw,
2903 IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
2904 IXGBE_SB_IOSF_TARGET_KR_PHY,
2905 ®_val);
2906 if (rc)
2907 return rc;
2908
2909 reg_val &= ~(IXGBE_KRM_AN_CNTL_1_SYM_PAUSE |
2910 IXGBE_KRM_AN_CNTL_1_ASM_PAUSE);
2911 if (pause)
2912 reg_val |= IXGBE_KRM_AN_CNTL_1_SYM_PAUSE;
2913 if (asm_dir)
2914 reg_val |= IXGBE_KRM_AN_CNTL_1_ASM_PAUSE;
2915 rc = hw->mac.ops.write_iosf_sb_reg(hw,
2916 IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
2917 IXGBE_SB_IOSF_TARGET_KR_PHY,
2918 reg_val);
2919
2920 /* This device does not fully support AN. */
2921 hw->fc.disable_fc_autoneg = true;
2922 break;
2923 case IXGBE_DEV_ID_X550EM_X_XFI:
2924 hw->fc.disable_fc_autoneg = true;
2925 break;
2926 default:
2927 break;
2928 }
2929 return rc;
2930}
2931
2932/**
2933 * ixgbe_fc_autoneg_backplane_x550em_a - Enable flow control IEEE clause 37
2934 * @hw: pointer to hardware structure
2935 **/
2936static void ixgbe_fc_autoneg_backplane_x550em_a(struct ixgbe_hw *hw)
2937{
2938 u32 link_s1, lp_an_page_low, an_cntl_1;
2939 s32 status = IXGBE_ERR_FC_NOT_NEGOTIATED;
2940 ixgbe_link_speed speed;
2941 bool link_up;
2942
2943 /* AN should have completed when the cable was plugged in.
2944 * Look for reasons to bail out. Bail out if:
2945 * - FC autoneg is disabled, or if
2946 * - link is not up.
2947 */
2948 if (hw->fc.disable_fc_autoneg) {
2949 hw_err(hw, "Flow control autoneg is disabled");
2950 goto out;
2951 }
2952
2953 hw->mac.ops.check_link(hw, &speed, &link_up, false);
2954 if (!link_up) {
2955 hw_err(hw, "The link is down");
2956 goto out;
2957 }
2958
2959 /* Check at auto-negotiation has completed */
2960 status = hw->mac.ops.read_iosf_sb_reg(hw,
2961 IXGBE_KRM_LINK_S1(hw->bus.lan_id),
2962 IXGBE_SB_IOSF_TARGET_KR_PHY, &link_s1);
2963
2964 if (status || (link_s1 & IXGBE_KRM_LINK_S1_MAC_AN_COMPLETE) == 0) {
2965 hw_dbg(hw, "Auto-Negotiation did not complete\n");
2966 status = IXGBE_ERR_FC_NOT_NEGOTIATED;
2967 goto out;
2968 }
2969
2970 /* Read the 10g AN autoc and LP ability registers and resolve
2971 * local flow control settings accordingly
2972 */
2973 status = hw->mac.ops.read_iosf_sb_reg(hw,
2974 IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
2975 IXGBE_SB_IOSF_TARGET_KR_PHY, &an_cntl_1);
2976
2977 if (status) {
2978 hw_dbg(hw, "Auto-Negotiation did not complete\n");
2979 goto out;
2980 }
2981
2982 status = hw->mac.ops.read_iosf_sb_reg(hw,
2983 IXGBE_KRM_LP_BASE_PAGE_HIGH(hw->bus.lan_id),
2984 IXGBE_SB_IOSF_TARGET_KR_PHY, &lp_an_page_low);
2985
2986 if (status) {
2987 hw_dbg(hw, "Auto-Negotiation did not complete\n");
2988 goto out;
2989 }
2990
2991 status = ixgbe_negotiate_fc(hw, an_cntl_1, lp_an_page_low,
2992 IXGBE_KRM_AN_CNTL_1_SYM_PAUSE,
2993 IXGBE_KRM_AN_CNTL_1_ASM_PAUSE,
2994 IXGBE_KRM_LP_BASE_PAGE_HIGH_SYM_PAUSE,
2995 IXGBE_KRM_LP_BASE_PAGE_HIGH_ASM_PAUSE);
2996
2997out:
2998 if (!status) {
2999 hw->fc.fc_was_autonegged = true;
3000 } else {
3001 hw->fc.fc_was_autonegged = false;
3002 hw->fc.current_mode = hw->fc.requested_mode;
3003 }
3004}
3005
3006/**
3007 * ixgbe_fc_autoneg_fiber_x550em_a - passthrough FC settings
3008 * @hw: pointer to hardware structure
3009 **/
3010static void ixgbe_fc_autoneg_fiber_x550em_a(struct ixgbe_hw *hw)
3011{
3012 hw->fc.fc_was_autonegged = false;
3013 hw->fc.current_mode = hw->fc.requested_mode;
3014}
3015
3016/** ixgbe_enter_lplu_x550em - Transition to low power states
3017 * @hw: pointer to hardware structure
3018 *
3019 * Configures Low Power Link Up on transition to low power states
3020 * (from D0 to non-D0). Link is required to enter LPLU so avoid resetting
3021 * the X557 PHY immediately prior to entering LPLU.
3022 **/
3023static s32 ixgbe_enter_lplu_t_x550em(struct ixgbe_hw *hw)
3024{
3025 u16 an_10g_cntl_reg, autoneg_reg, speed;
3026 s32 status;
3027 ixgbe_link_speed lcd_speed;
3028 u32 save_autoneg;
3029 bool link_up;
3030
3031 /* If blocked by MNG FW, then don't restart AN */
3032 if (ixgbe_check_reset_blocked(hw))
3033 return 0;
3034
3035 status = ixgbe_ext_phy_t_x550em_get_link(hw, &link_up);
3036 if (status)
3037 return status;
3038
3039 status = hw->eeprom.ops.read(hw, NVM_INIT_CTRL_3,
3040 &hw->eeprom.ctrl_word_3);
3041 if (status)
3042 return status;
3043
3044 /* If link is down, LPLU disabled in NVM, WoL disabled, or
3045 * manageability disabled, then force link down by entering
3046 * low power mode.
3047 */
3048 if (!link_up || !(hw->eeprom.ctrl_word_3 & NVM_INIT_CTRL_3_LPLU) ||
3049 !(hw->wol_enabled || ixgbe_mng_present(hw)))
3050 return ixgbe_set_copper_phy_power(hw, false);
3051
3052 /* Determine LCD */
3053 status = ixgbe_get_lcd_t_x550em(hw, &lcd_speed);
3054 if (status)
3055 return status;
3056
3057 /* If no valid LCD link speed, then force link down and exit. */
3058 if (lcd_speed == IXGBE_LINK_SPEED_UNKNOWN)
3059 return ixgbe_set_copper_phy_power(hw, false);
3060
3061 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_VENDOR_STAT,
3062 MDIO_MMD_AN,
3063 &speed);
3064 if (status)
3065 return status;
3066
3067 /* If no link now, speed is invalid so take link down */
3068 status = ixgbe_ext_phy_t_x550em_get_link(hw, &link_up);
3069 if (status)
3070 return ixgbe_set_copper_phy_power(hw, false);
3071
3072 /* clear everything but the speed bits */
3073 speed &= IXGBE_MDIO_AUTO_NEG_VEN_STAT_SPEED_MASK;
3074
3075 /* If current speed is already LCD, then exit. */
3076 if (((speed == IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_1GB) &&
3077 (lcd_speed == IXGBE_LINK_SPEED_1GB_FULL)) ||
3078 ((speed == IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_10GB) &&
3079 (lcd_speed == IXGBE_LINK_SPEED_10GB_FULL)))
3080 return status;
3081
3082 /* Clear AN completed indication */
3083 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_VENDOR_TX_ALARM,
3084 MDIO_MMD_AN,
3085 &autoneg_reg);
3086 if (status)
3087 return status;
3088
3089 status = hw->phy.ops.read_reg(hw, MDIO_AN_10GBT_CTRL,
3090 MDIO_MMD_AN,
3091 &an_10g_cntl_reg);
3092 if (status)
3093 return status;
3094
3095 status = hw->phy.ops.read_reg(hw,
3096 IXGBE_MII_AUTONEG_VENDOR_PROVISION_1_REG,
3097 MDIO_MMD_AN,
3098 &autoneg_reg);
3099 if (status)
3100 return status;
3101
3102 save_autoneg = hw->phy.autoneg_advertised;
3103
3104 /* Setup link at least common link speed */
3105 status = hw->mac.ops.setup_link(hw, lcd_speed, false);
3106
3107 /* restore autoneg from before setting lplu speed */
3108 hw->phy.autoneg_advertised = save_autoneg;
3109
3110 return status;
3111}
3112
3113/**
3114 * ixgbe_reset_phy_fw - Reset firmware-controlled PHYs
3115 * @hw: pointer to hardware structure
3116 */
3117static s32 ixgbe_reset_phy_fw(struct ixgbe_hw *hw)
3118{
3119 u32 store[FW_PHY_ACT_DATA_COUNT] = { 0 };
3120 s32 rc;
3121
3122 if (hw->phy.reset_disable || ixgbe_check_reset_blocked(hw))
3123 return 0;
3124
3125 rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_PHY_SW_RESET, &store);
3126 if (rc)
3127 return rc;
3128 memset(store, 0, sizeof(store));
3129
3130 rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_INIT_PHY, &store);
3131 if (rc)
3132 return rc;
3133
3134 return ixgbe_setup_fw_link(hw);
3135}
3136
3137/**
3138 * ixgbe_check_overtemp_fw - Check firmware-controlled PHYs for overtemp
3139 * @hw: pointer to hardware structure
3140 */
3141static s32 ixgbe_check_overtemp_fw(struct ixgbe_hw *hw)
3142{
3143 u32 store[FW_PHY_ACT_DATA_COUNT] = { 0 };
3144 s32 rc;
3145
3146 rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_GET_LINK_INFO, &store);
3147 if (rc)
3148 return rc;
3149
3150 if (store[0] & FW_PHY_ACT_GET_LINK_INFO_TEMP) {
3151 ixgbe_shutdown_fw_phy(hw);
3152 return IXGBE_ERR_OVERTEMP;
3153 }
3154 return 0;
3155}
3156
3157/**
3158 * ixgbe_read_mng_if_sel_x550em - Read NW_MNG_IF_SEL register
3159 * @hw: pointer to hardware structure
3160 *
3161 * Read NW_MNG_IF_SEL register and save field values.
3162 */
3163static void ixgbe_read_mng_if_sel_x550em(struct ixgbe_hw *hw)
3164{
3165 /* Save NW management interface connected on board. This is used
3166 * to determine internal PHY mode.
3167 */
3168 hw->phy.nw_mng_if_sel = IXGBE_READ_REG(hw, IXGBE_NW_MNG_IF_SEL);
3169
3170 /* If X552 (X550EM_a) and MDIO is connected to external PHY, then set
3171 * PHY address. This register field was has only been used for X552.
3172 */
3173 if (hw->mac.type == ixgbe_mac_x550em_a &&
3174 hw->phy.nw_mng_if_sel & IXGBE_NW_MNG_IF_SEL_MDIO_ACT) {
3175 hw->phy.mdio.prtad = (hw->phy.nw_mng_if_sel &
3176 IXGBE_NW_MNG_IF_SEL_MDIO_PHY_ADD) >>
3177 IXGBE_NW_MNG_IF_SEL_MDIO_PHY_ADD_SHIFT;
3178 }
3179}
3180
3181/** ixgbe_init_phy_ops_X550em - PHY/SFP specific init
3182 * @hw: pointer to hardware structure
3183 *
3184 * Initialize any function pointers that were not able to be
3185 * set during init_shared_code because the PHY/SFP type was
3186 * not known. Perform the SFP init if necessary.
3187 **/
3188static s32 ixgbe_init_phy_ops_X550em(struct ixgbe_hw *hw)
3189{
3190 struct ixgbe_phy_info *phy = &hw->phy;
3191 s32 ret_val;
3192
3193 hw->mac.ops.set_lan_id(hw);
3194
3195 ixgbe_read_mng_if_sel_x550em(hw);
3196
3197 if (hw->mac.ops.get_media_type(hw) == ixgbe_media_type_fiber) {
3198 phy->phy_semaphore_mask = IXGBE_GSSR_SHARED_I2C_SM;
3199 ixgbe_setup_mux_ctl(hw);
3200 }
3201
3202 /* Identify the PHY or SFP module */
3203 ret_val = phy->ops.identify(hw);
3204 if (ret_val == IXGBE_ERR_SFP_NOT_SUPPORTED ||
3205 ret_val == IXGBE_ERR_PHY_ADDR_INVALID)
3206 return ret_val;
3207
3208 /* Setup function pointers based on detected hardware */
3209 ixgbe_init_mac_link_ops_X550em(hw);
3210 if (phy->sfp_type != ixgbe_sfp_type_unknown)
3211 phy->ops.reset = NULL;
3212
3213 /* Set functions pointers based on phy type */
3214 switch (hw->phy.type) {
3215 case ixgbe_phy_x550em_kx4:
3216 phy->ops.setup_link = NULL;
3217 phy->ops.read_reg = ixgbe_read_phy_reg_x550em;
3218 phy->ops.write_reg = ixgbe_write_phy_reg_x550em;
3219 break;
3220 case ixgbe_phy_x550em_kr:
3221 phy->ops.setup_link = ixgbe_setup_kr_x550em;
3222 phy->ops.read_reg = ixgbe_read_phy_reg_x550em;
3223 phy->ops.write_reg = ixgbe_write_phy_reg_x550em;
3224 break;
3225 case ixgbe_phy_x550em_xfi:
3226 /* link is managed by HW */
3227 phy->ops.setup_link = NULL;
3228 phy->ops.read_reg = ixgbe_read_phy_reg_x550em;
3229 phy->ops.write_reg = ixgbe_write_phy_reg_x550em;
3230 break;
3231 case ixgbe_phy_x550em_ext_t:
3232 /* Save NW management interface connected on board. This is used
3233 * to determine internal PHY mode
3234 */
3235 phy->nw_mng_if_sel = IXGBE_READ_REG(hw, IXGBE_NW_MNG_IF_SEL);
3236
3237 /* If internal link mode is XFI, then setup iXFI internal link,
3238 * else setup KR now.
3239 */
3240 phy->ops.setup_internal_link =
3241 ixgbe_setup_internal_phy_t_x550em;
3242
3243 /* setup SW LPLU only for first revision */
3244 if (hw->mac.type == ixgbe_mac_X550EM_x &&
3245 !(IXGBE_READ_REG(hw, IXGBE_FUSES0_GROUP(0)) &
3246 IXGBE_FUSES0_REV_MASK))
3247 phy->ops.enter_lplu = ixgbe_enter_lplu_t_x550em;
3248
3249 phy->ops.handle_lasi = ixgbe_handle_lasi_ext_t_x550em;
3250 phy->ops.reset = ixgbe_reset_phy_t_X550em;
3251 break;
3252 case ixgbe_phy_sgmii:
3253 phy->ops.setup_link = NULL;
3254 break;
3255 case ixgbe_phy_fw:
3256 phy->ops.setup_link = ixgbe_setup_fw_link;
3257 phy->ops.reset = ixgbe_reset_phy_fw;
3258 break;
3259 case ixgbe_phy_ext_1g_t:
3260 phy->ops.setup_link = NULL;
3261 phy->ops.read_reg = NULL;
3262 phy->ops.write_reg = NULL;
3263 phy->ops.reset = NULL;
3264 break;
3265 default:
3266 break;
3267 }
3268
3269 return ret_val;
3270}
3271
3272/** ixgbe_get_media_type_X550em - Get media type
3273 * @hw: pointer to hardware structure
3274 *
3275 * Returns the media type (fiber, copper, backplane)
3276 *
3277 */
3278static enum ixgbe_media_type ixgbe_get_media_type_X550em(struct ixgbe_hw *hw)
3279{
3280 enum ixgbe_media_type media_type;
3281
3282 /* Detect if there is a copper PHY attached. */
3283 switch (hw->device_id) {
3284 case IXGBE_DEV_ID_X550EM_A_SGMII:
3285 case IXGBE_DEV_ID_X550EM_A_SGMII_L:
3286 hw->phy.type = ixgbe_phy_sgmii;
3287 /* Fallthrough */
3288 case IXGBE_DEV_ID_X550EM_X_KR:
3289 case IXGBE_DEV_ID_X550EM_X_KX4:
3290 case IXGBE_DEV_ID_X550EM_X_XFI:
3291 case IXGBE_DEV_ID_X550EM_A_KR:
3292 case IXGBE_DEV_ID_X550EM_A_KR_L:
3293 media_type = ixgbe_media_type_backplane;
3294 break;
3295 case IXGBE_DEV_ID_X550EM_X_SFP:
3296 case IXGBE_DEV_ID_X550EM_A_SFP:
3297 case IXGBE_DEV_ID_X550EM_A_SFP_N:
3298 media_type = ixgbe_media_type_fiber;
3299 break;
3300 case IXGBE_DEV_ID_X550EM_X_1G_T:
3301 case IXGBE_DEV_ID_X550EM_X_10G_T:
3302 case IXGBE_DEV_ID_X550EM_A_10G_T:
3303 case IXGBE_DEV_ID_X550EM_A_1G_T:
3304 case IXGBE_DEV_ID_X550EM_A_1G_T_L:
3305 media_type = ixgbe_media_type_copper;
3306 break;
3307 default:
3308 media_type = ixgbe_media_type_unknown;
3309 break;
3310 }
3311 return media_type;
3312}
3313
3314/** ixgbe_init_ext_t_x550em - Start (unstall) the external Base T PHY.
3315 ** @hw: pointer to hardware structure
3316 **/
3317static s32 ixgbe_init_ext_t_x550em(struct ixgbe_hw *hw)
3318{
3319 s32 status;
3320 u16 reg;
3321
3322 status = hw->phy.ops.read_reg(hw,
3323 IXGBE_MDIO_TX_VENDOR_ALARMS_3,
3324 MDIO_MMD_PMAPMD,
3325 ®);
3326 if (status)
3327 return status;
3328
3329 /* If PHY FW reset completed bit is set then this is the first
3330 * SW instance after a power on so the PHY FW must be un-stalled.
3331 */
3332 if (reg & IXGBE_MDIO_TX_VENDOR_ALARMS_3_RST_MASK) {
3333 status = hw->phy.ops.read_reg(hw,
3334 IXGBE_MDIO_GLOBAL_RES_PR_10,
3335 MDIO_MMD_VEND1,
3336 ®);
3337 if (status)
3338 return status;
3339
3340 reg &= ~IXGBE_MDIO_POWER_UP_STALL;
3341
3342 status = hw->phy.ops.write_reg(hw,
3343 IXGBE_MDIO_GLOBAL_RES_PR_10,
3344 MDIO_MMD_VEND1,
3345 reg);
3346 if (status)
3347 return status;
3348 }
3349
3350 return status;
3351}
3352
3353/**
3354 * ixgbe_set_mdio_speed - Set MDIO clock speed
3355 * @hw: pointer to hardware structure
3356 */
3357static void ixgbe_set_mdio_speed(struct ixgbe_hw *hw)
3358{
3359 u32 hlreg0;
3360
3361 switch (hw->device_id) {
3362 case IXGBE_DEV_ID_X550EM_X_10G_T:
3363 case IXGBE_DEV_ID_X550EM_A_SGMII:
3364 case IXGBE_DEV_ID_X550EM_A_SGMII_L:
3365 case IXGBE_DEV_ID_X550EM_A_10G_T:
3366 case IXGBE_DEV_ID_X550EM_A_SFP:
3367 /* Config MDIO clock speed before the first MDIO PHY access */
3368 hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0);
3369 hlreg0 &= ~IXGBE_HLREG0_MDCSPD;
3370 IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0);
3371 break;
3372 case IXGBE_DEV_ID_X550EM_A_1G_T:
3373 case IXGBE_DEV_ID_X550EM_A_1G_T_L:
3374 /* Select fast MDIO clock speed for these devices */
3375 hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0);
3376 hlreg0 |= IXGBE_HLREG0_MDCSPD;
3377 IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0);
3378 break;
3379 default:
3380 break;
3381 }
3382}
3383
3384/** ixgbe_reset_hw_X550em - Perform hardware reset
3385 ** @hw: pointer to hardware structure
3386 **
3387 ** Resets the hardware by resetting the transmit and receive units, masks
3388 ** and clears all interrupts, perform a PHY reset, and perform a link (MAC)
3389 ** reset.
3390 **/
3391static s32 ixgbe_reset_hw_X550em(struct ixgbe_hw *hw)
3392{
3393 ixgbe_link_speed link_speed;
3394 s32 status;
3395 u32 ctrl = 0;
3396 u32 i;
3397 bool link_up = false;
3398 u32 swfw_mask = hw->phy.phy_semaphore_mask;
3399
3400 /* Call adapter stop to disable Tx/Rx and clear interrupts */
3401 status = hw->mac.ops.stop_adapter(hw);
3402 if (status)
3403 return status;
3404
3405 /* flush pending Tx transactions */
3406 ixgbe_clear_tx_pending(hw);
3407
3408 /* PHY ops must be identified and initialized prior to reset */
3409 status = hw->phy.ops.init(hw);
3410 if (status == IXGBE_ERR_SFP_NOT_SUPPORTED ||
3411 status == IXGBE_ERR_PHY_ADDR_INVALID)
3412 return status;
3413
3414 /* start the external PHY */
3415 if (hw->phy.type == ixgbe_phy_x550em_ext_t) {
3416 status = ixgbe_init_ext_t_x550em(hw);
3417 if (status)
3418 return status;
3419 }
3420
3421 /* Setup SFP module if there is one present. */
3422 if (hw->phy.sfp_setup_needed) {
3423 status = hw->mac.ops.setup_sfp(hw);
3424 hw->phy.sfp_setup_needed = false;
3425 }
3426
3427 if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
3428 return status;
3429
3430 /* Reset PHY */
3431 if (!hw->phy.reset_disable && hw->phy.ops.reset)
3432 hw->phy.ops.reset(hw);
3433
3434mac_reset_top:
3435 /* Issue global reset to the MAC. Needs to be SW reset if link is up.
3436 * If link reset is used when link is up, it might reset the PHY when
3437 * mng is using it. If link is down or the flag to force full link
3438 * reset is set, then perform link reset.
3439 */
3440 ctrl = IXGBE_CTRL_LNK_RST;
3441
3442 if (!hw->force_full_reset) {
3443 hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
3444 if (link_up)
3445 ctrl = IXGBE_CTRL_RST;
3446 }
3447
3448 status = hw->mac.ops.acquire_swfw_sync(hw, swfw_mask);
3449 if (status) {
3450 hw_dbg(hw, "semaphore failed with %d", status);
3451 return IXGBE_ERR_SWFW_SYNC;
3452 }
3453
3454 ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL);
3455 IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
3456 IXGBE_WRITE_FLUSH(hw);
3457 hw->mac.ops.release_swfw_sync(hw, swfw_mask);
3458 usleep_range(1000, 1200);
3459
3460 /* Poll for reset bit to self-clear meaning reset is complete */
3461 for (i = 0; i < 10; i++) {
3462 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
3463 if (!(ctrl & IXGBE_CTRL_RST_MASK))
3464 break;
3465 udelay(1);
3466 }
3467
3468 if (ctrl & IXGBE_CTRL_RST_MASK) {
3469 status = IXGBE_ERR_RESET_FAILED;
3470 hw_dbg(hw, "Reset polling failed to complete.\n");
3471 }
3472
3473 msleep(50);
3474
3475 /* Double resets are required for recovery from certain error
3476 * clear the multicast table. Also reset num_rar_entries to 128,
3477 * since we modify this value when programming the SAN MAC address.
3478 */
3479 if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
3480 hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
3481 goto mac_reset_top;
3482 }
3483
3484 /* Store the permanent mac address */
3485 hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
3486
3487 /* Store MAC address from RAR0, clear receive address registers, and
3488 * clear the multicast table. Also reset num_rar_entries to 128,
3489 * since we modify this value when programming the SAN MAC address.
3490 */
3491 hw->mac.num_rar_entries = 128;
3492 hw->mac.ops.init_rx_addrs(hw);
3493
3494 ixgbe_set_mdio_speed(hw);
3495
3496 if (hw->device_id == IXGBE_DEV_ID_X550EM_X_SFP)
3497 ixgbe_setup_mux_ctl(hw);
3498
3499 return status;
3500}
3501
3502/** ixgbe_set_ethertype_anti_spoofing_X550 - Enable/Disable Ethertype
3503 * anti-spoofing
3504 * @hw: pointer to hardware structure
3505 * @enable: enable or disable switch for Ethertype anti-spoofing
3506 * @vf: Virtual Function pool - VF Pool to set for Ethertype anti-spoofing
3507 **/
3508static void ixgbe_set_ethertype_anti_spoofing_X550(struct ixgbe_hw *hw,
3509 bool enable, int vf)
3510{
3511 int vf_target_reg = vf >> 3;
3512 int vf_target_shift = vf % 8 + IXGBE_SPOOF_ETHERTYPEAS_SHIFT;
3513 u32 pfvfspoof;
3514
3515 pfvfspoof = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg));
3516 if (enable)
3517 pfvfspoof |= BIT(vf_target_shift);
3518 else
3519 pfvfspoof &= ~BIT(vf_target_shift);
3520
3521 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), pfvfspoof);
3522}
3523
3524/** ixgbe_set_source_address_pruning_X550 - Enable/Disbale src address pruning
3525 * @hw: pointer to hardware structure
3526 * @enable: enable or disable source address pruning
3527 * @pool: Rx pool to set source address pruning for
3528 **/
3529static void ixgbe_set_source_address_pruning_X550(struct ixgbe_hw *hw,
3530 bool enable,
3531 unsigned int pool)
3532{
3533 u64 pfflp;
3534
3535 /* max rx pool is 63 */
3536 if (pool > 63)
3537 return;
3538
3539 pfflp = (u64)IXGBE_READ_REG(hw, IXGBE_PFFLPL);
3540 pfflp |= (u64)IXGBE_READ_REG(hw, IXGBE_PFFLPH) << 32;
3541
3542 if (enable)
3543 pfflp |= (1ULL << pool);
3544 else
3545 pfflp &= ~(1ULL << pool);
3546
3547 IXGBE_WRITE_REG(hw, IXGBE_PFFLPL, (u32)pfflp);
3548 IXGBE_WRITE_REG(hw, IXGBE_PFFLPH, (u32)(pfflp >> 32));
3549}
3550
3551/**
3552 * ixgbe_setup_fc_backplane_x550em_a - Set up flow control
3553 * @hw: pointer to hardware structure
3554 *
3555 * Called at init time to set up flow control.
3556 **/
3557static s32 ixgbe_setup_fc_backplane_x550em_a(struct ixgbe_hw *hw)
3558{
3559 s32 status = 0;
3560 u32 an_cntl = 0;
3561
3562 /* Validate the requested mode */
3563 if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
3564 hw_err(hw, "ixgbe_fc_rx_pause not valid in strict IEEE mode\n");
3565 return IXGBE_ERR_INVALID_LINK_SETTINGS;
3566 }
3567
3568 if (hw->fc.requested_mode == ixgbe_fc_default)
3569 hw->fc.requested_mode = ixgbe_fc_full;
3570
3571 /* Set up the 1G and 10G flow control advertisement registers so the
3572 * HW will be able to do FC autoneg once the cable is plugged in. If
3573 * we link at 10G, the 1G advertisement is harmless and vice versa.
3574 */
3575 status = hw->mac.ops.read_iosf_sb_reg(hw,
3576 IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
3577 IXGBE_SB_IOSF_TARGET_KR_PHY, &an_cntl);
3578
3579 if (status) {
3580 hw_dbg(hw, "Auto-Negotiation did not complete\n");
3581 return status;
3582 }
3583
3584 /* The possible values of fc.requested_mode are:
3585 * 0: Flow control is completely disabled
3586 * 1: Rx flow control is enabled (we can receive pause frames,
3587 * but not send pause frames).
3588 * 2: Tx flow control is enabled (we can send pause frames but
3589 * we do not support receiving pause frames).
3590 * 3: Both Rx and Tx flow control (symmetric) are enabled.
3591 * other: Invalid.
3592 */
3593 switch (hw->fc.requested_mode) {
3594 case ixgbe_fc_none:
3595 /* Flow control completely disabled by software override. */
3596 an_cntl &= ~(IXGBE_KRM_AN_CNTL_1_SYM_PAUSE |
3597 IXGBE_KRM_AN_CNTL_1_ASM_PAUSE);
3598 break;
3599 case ixgbe_fc_tx_pause:
3600 /* Tx Flow control is enabled, and Rx Flow control is
3601 * disabled by software override.
3602 */
3603 an_cntl |= IXGBE_KRM_AN_CNTL_1_ASM_PAUSE;
3604 an_cntl &= ~IXGBE_KRM_AN_CNTL_1_SYM_PAUSE;
3605 break;
3606 case ixgbe_fc_rx_pause:
3607 /* Rx Flow control is enabled and Tx Flow control is
3608 * disabled by software override. Since there really
3609 * isn't a way to advertise that we are capable of RX
3610 * Pause ONLY, we will advertise that we support both
3611 * symmetric and asymmetric Rx PAUSE, as such we fall
3612 * through to the fc_full statement. Later, we will
3613 * disable the adapter's ability to send PAUSE frames.
3614 */
3615 case ixgbe_fc_full:
3616 /* Flow control (both Rx and Tx) is enabled by SW override. */
3617 an_cntl |= IXGBE_KRM_AN_CNTL_1_SYM_PAUSE |
3618 IXGBE_KRM_AN_CNTL_1_ASM_PAUSE;
3619 break;
3620 default:
3621 hw_err(hw, "Flow control param set incorrectly\n");
3622 return IXGBE_ERR_CONFIG;
3623 }
3624
3625 status = hw->mac.ops.write_iosf_sb_reg(hw,
3626 IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
3627 IXGBE_SB_IOSF_TARGET_KR_PHY, an_cntl);
3628
3629 /* Restart auto-negotiation. */
3630 status = ixgbe_restart_an_internal_phy_x550em(hw);
3631
3632 return status;
3633}
3634
3635/**
3636 * ixgbe_set_mux - Set mux for port 1 access with CS4227
3637 * @hw: pointer to hardware structure
3638 * @state: set mux if 1, clear if 0
3639 */
3640static void ixgbe_set_mux(struct ixgbe_hw *hw, u8 state)
3641{
3642 u32 esdp;
3643
3644 if (!hw->bus.lan_id)
3645 return;
3646 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
3647 if (state)
3648 esdp |= IXGBE_ESDP_SDP1;
3649 else
3650 esdp &= ~IXGBE_ESDP_SDP1;
3651 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
3652 IXGBE_WRITE_FLUSH(hw);
3653}
3654
3655/**
3656 * ixgbe_acquire_swfw_sync_X550em - Acquire SWFW semaphore
3657 * @hw: pointer to hardware structure
3658 * @mask: Mask to specify which semaphore to acquire
3659 *
3660 * Acquires the SWFW semaphore and sets the I2C MUX
3661 */
3662static s32 ixgbe_acquire_swfw_sync_X550em(struct ixgbe_hw *hw, u32 mask)
3663{
3664 s32 status;
3665
3666 status = ixgbe_acquire_swfw_sync_X540(hw, mask);
3667 if (status)
3668 return status;
3669
3670 if (mask & IXGBE_GSSR_I2C_MASK)
3671 ixgbe_set_mux(hw, 1);
3672
3673 return 0;
3674}
3675
3676/**
3677 * ixgbe_release_swfw_sync_X550em - Release SWFW semaphore
3678 * @hw: pointer to hardware structure
3679 * @mask: Mask to specify which semaphore to release
3680 *
3681 * Releases the SWFW semaphore and sets the I2C MUX
3682 */
3683static void ixgbe_release_swfw_sync_X550em(struct ixgbe_hw *hw, u32 mask)
3684{
3685 if (mask & IXGBE_GSSR_I2C_MASK)
3686 ixgbe_set_mux(hw, 0);
3687
3688 ixgbe_release_swfw_sync_X540(hw, mask);
3689}
3690
3691/**
3692 * ixgbe_acquire_swfw_sync_x550em_a - Acquire SWFW semaphore
3693 * @hw: pointer to hardware structure
3694 * @mask: Mask to specify which semaphore to acquire
3695 *
3696 * Acquires the SWFW semaphore and get the shared PHY token as needed
3697 */
3698static s32 ixgbe_acquire_swfw_sync_x550em_a(struct ixgbe_hw *hw, u32 mask)
3699{
3700 u32 hmask = mask & ~IXGBE_GSSR_TOKEN_SM;
3701 int retries = FW_PHY_TOKEN_RETRIES;
3702 s32 status;
3703
3704 while (--retries) {
3705 status = 0;
3706 if (hmask)
3707 status = ixgbe_acquire_swfw_sync_X540(hw, hmask);
3708 if (status)
3709 return status;
3710 if (!(mask & IXGBE_GSSR_TOKEN_SM))
3711 return 0;
3712
3713 status = ixgbe_get_phy_token(hw);
3714 if (!status)
3715 return 0;
3716 if (hmask)
3717 ixgbe_release_swfw_sync_X540(hw, hmask);
3718 if (status != IXGBE_ERR_TOKEN_RETRY)
3719 return status;
3720 msleep(FW_PHY_TOKEN_DELAY);
3721 }
3722
3723 return status;
3724}
3725
3726/**
3727 * ixgbe_release_swfw_sync_x550em_a - Release SWFW semaphore
3728 * @hw: pointer to hardware structure
3729 * @mask: Mask to specify which semaphore to release
3730 *
3731 * Release the SWFW semaphore and puts the shared PHY token as needed
3732 */
3733static void ixgbe_release_swfw_sync_x550em_a(struct ixgbe_hw *hw, u32 mask)
3734{
3735 u32 hmask = mask & ~IXGBE_GSSR_TOKEN_SM;
3736
3737 if (mask & IXGBE_GSSR_TOKEN_SM)
3738 ixgbe_put_phy_token(hw);
3739
3740 if (hmask)
3741 ixgbe_release_swfw_sync_X540(hw, hmask);
3742}
3743
3744/**
3745 * ixgbe_read_phy_reg_x550a - Reads specified PHY register
3746 * @hw: pointer to hardware structure
3747 * @reg_addr: 32 bit address of PHY register to read
3748 * @device_type: 5 bit device type
3749 * @phy_data: Pointer to read data from PHY register
3750 *
3751 * Reads a value from a specified PHY register using the SWFW lock and PHY
3752 * Token. The PHY Token is needed since the MDIO is shared between to MAC
3753 * instances.
3754 */
3755static s32 ixgbe_read_phy_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr,
3756 u32 device_type, u16 *phy_data)
3757{
3758 u32 mask = hw->phy.phy_semaphore_mask | IXGBE_GSSR_TOKEN_SM;
3759 s32 status;
3760
3761 if (hw->mac.ops.acquire_swfw_sync(hw, mask))
3762 return IXGBE_ERR_SWFW_SYNC;
3763
3764 status = hw->phy.ops.read_reg_mdi(hw, reg_addr, device_type, phy_data);
3765
3766 hw->mac.ops.release_swfw_sync(hw, mask);
3767
3768 return status;
3769}
3770
3771/**
3772 * ixgbe_write_phy_reg_x550a - Writes specified PHY register
3773 * @hw: pointer to hardware structure
3774 * @reg_addr: 32 bit PHY register to write
3775 * @device_type: 5 bit device type
3776 * @phy_data: Data to write to the PHY register
3777 *
3778 * Writes a value to specified PHY register using the SWFW lock and PHY Token.
3779 * The PHY Token is needed since the MDIO is shared between to MAC instances.
3780 */
3781static s32 ixgbe_write_phy_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr,
3782 u32 device_type, u16 phy_data)
3783{
3784 u32 mask = hw->phy.phy_semaphore_mask | IXGBE_GSSR_TOKEN_SM;
3785 s32 status;
3786
3787 if (hw->mac.ops.acquire_swfw_sync(hw, mask))
3788 return IXGBE_ERR_SWFW_SYNC;
3789
3790 status = ixgbe_write_phy_reg_mdi(hw, reg_addr, device_type, phy_data);
3791 hw->mac.ops.release_swfw_sync(hw, mask);
3792
3793 return status;
3794}
3795
3796#define X550_COMMON_MAC \
3797 .init_hw = &ixgbe_init_hw_generic, \
3798 .start_hw = &ixgbe_start_hw_X540, \
3799 .clear_hw_cntrs = &ixgbe_clear_hw_cntrs_generic, \
3800 .enable_rx_dma = &ixgbe_enable_rx_dma_generic, \
3801 .get_mac_addr = &ixgbe_get_mac_addr_generic, \
3802 .get_device_caps = &ixgbe_get_device_caps_generic, \
3803 .stop_adapter = &ixgbe_stop_adapter_generic, \
3804 .set_lan_id = &ixgbe_set_lan_id_multi_port_pcie, \
3805 .read_analog_reg8 = NULL, \
3806 .write_analog_reg8 = NULL, \
3807 .set_rxpba = &ixgbe_set_rxpba_generic, \
3808 .check_link = &ixgbe_check_mac_link_generic, \
3809 .blink_led_start = &ixgbe_blink_led_start_X540, \
3810 .blink_led_stop = &ixgbe_blink_led_stop_X540, \
3811 .set_rar = &ixgbe_set_rar_generic, \
3812 .clear_rar = &ixgbe_clear_rar_generic, \
3813 .set_vmdq = &ixgbe_set_vmdq_generic, \
3814 .set_vmdq_san_mac = &ixgbe_set_vmdq_san_mac_generic, \
3815 .clear_vmdq = &ixgbe_clear_vmdq_generic, \
3816 .init_rx_addrs = &ixgbe_init_rx_addrs_generic, \
3817 .update_mc_addr_list = &ixgbe_update_mc_addr_list_generic, \
3818 .enable_mc = &ixgbe_enable_mc_generic, \
3819 .disable_mc = &ixgbe_disable_mc_generic, \
3820 .clear_vfta = &ixgbe_clear_vfta_generic, \
3821 .set_vfta = &ixgbe_set_vfta_generic, \
3822 .fc_enable = &ixgbe_fc_enable_generic, \
3823 .set_fw_drv_ver = &ixgbe_set_fw_drv_ver_x550, \
3824 .init_uta_tables = &ixgbe_init_uta_tables_generic, \
3825 .set_mac_anti_spoofing = &ixgbe_set_mac_anti_spoofing, \
3826 .set_vlan_anti_spoofing = &ixgbe_set_vlan_anti_spoofing, \
3827 .set_source_address_pruning = \
3828 &ixgbe_set_source_address_pruning_X550, \
3829 .set_ethertype_anti_spoofing = \
3830 &ixgbe_set_ethertype_anti_spoofing_X550, \
3831 .disable_rx_buff = &ixgbe_disable_rx_buff_generic, \
3832 .enable_rx_buff = &ixgbe_enable_rx_buff_generic, \
3833 .get_thermal_sensor_data = NULL, \
3834 .init_thermal_sensor_thresh = NULL, \
3835 .fw_recovery_mode = &ixgbe_fw_recovery_mode_X550, \
3836 .enable_rx = &ixgbe_enable_rx_generic, \
3837 .disable_rx = &ixgbe_disable_rx_x550, \
3838
3839static const struct ixgbe_mac_operations mac_ops_X550 = {
3840 X550_COMMON_MAC
3841 .led_on = ixgbe_led_on_generic,
3842 .led_off = ixgbe_led_off_generic,
3843 .init_led_link_act = ixgbe_init_led_link_act_generic,
3844 .reset_hw = &ixgbe_reset_hw_X540,
3845 .get_media_type = &ixgbe_get_media_type_X540,
3846 .get_san_mac_addr = &ixgbe_get_san_mac_addr_generic,
3847 .get_wwn_prefix = &ixgbe_get_wwn_prefix_generic,
3848 .setup_link = &ixgbe_setup_mac_link_X540,
3849 .get_link_capabilities = &ixgbe_get_copper_link_capabilities_generic,
3850 .get_bus_info = &ixgbe_get_bus_info_generic,
3851 .setup_sfp = NULL,
3852 .acquire_swfw_sync = &ixgbe_acquire_swfw_sync_X540,
3853 .release_swfw_sync = &ixgbe_release_swfw_sync_X540,
3854 .init_swfw_sync = &ixgbe_init_swfw_sync_X540,
3855 .prot_autoc_read = prot_autoc_read_generic,
3856 .prot_autoc_write = prot_autoc_write_generic,
3857 .setup_fc = ixgbe_setup_fc_generic,
3858 .fc_autoneg = ixgbe_fc_autoneg,
3859};
3860
3861static const struct ixgbe_mac_operations mac_ops_X550EM_x = {
3862 X550_COMMON_MAC
3863 .led_on = ixgbe_led_on_t_x550em,
3864 .led_off = ixgbe_led_off_t_x550em,
3865 .init_led_link_act = ixgbe_init_led_link_act_generic,
3866 .reset_hw = &ixgbe_reset_hw_X550em,
3867 .get_media_type = &ixgbe_get_media_type_X550em,
3868 .get_san_mac_addr = NULL,
3869 .get_wwn_prefix = NULL,
3870 .setup_link = &ixgbe_setup_mac_link_X540,
3871 .get_link_capabilities = &ixgbe_get_link_capabilities_X550em,
3872 .get_bus_info = &ixgbe_get_bus_info_X550em,
3873 .setup_sfp = ixgbe_setup_sfp_modules_X550em,
3874 .acquire_swfw_sync = &ixgbe_acquire_swfw_sync_X550em,
3875 .release_swfw_sync = &ixgbe_release_swfw_sync_X550em,
3876 .init_swfw_sync = &ixgbe_init_swfw_sync_X540,
3877 .setup_fc = NULL, /* defined later */
3878 .fc_autoneg = ixgbe_fc_autoneg,
3879 .read_iosf_sb_reg = ixgbe_read_iosf_sb_reg_x550,
3880 .write_iosf_sb_reg = ixgbe_write_iosf_sb_reg_x550,
3881};
3882
3883static const struct ixgbe_mac_operations mac_ops_X550EM_x_fw = {
3884 X550_COMMON_MAC
3885 .led_on = NULL,
3886 .led_off = NULL,
3887 .init_led_link_act = NULL,
3888 .reset_hw = &ixgbe_reset_hw_X550em,
3889 .get_media_type = &ixgbe_get_media_type_X550em,
3890 .get_san_mac_addr = NULL,
3891 .get_wwn_prefix = NULL,
3892 .setup_link = &ixgbe_setup_mac_link_X540,
3893 .get_link_capabilities = &ixgbe_get_link_capabilities_X550em,
3894 .get_bus_info = &ixgbe_get_bus_info_X550em,
3895 .setup_sfp = ixgbe_setup_sfp_modules_X550em,
3896 .acquire_swfw_sync = &ixgbe_acquire_swfw_sync_X550em,
3897 .release_swfw_sync = &ixgbe_release_swfw_sync_X550em,
3898 .init_swfw_sync = &ixgbe_init_swfw_sync_X540,
3899 .setup_fc = NULL,
3900 .fc_autoneg = ixgbe_fc_autoneg,
3901 .read_iosf_sb_reg = ixgbe_read_iosf_sb_reg_x550,
3902 .write_iosf_sb_reg = ixgbe_write_iosf_sb_reg_x550,
3903};
3904
3905static const struct ixgbe_mac_operations mac_ops_x550em_a = {
3906 X550_COMMON_MAC
3907 .led_on = ixgbe_led_on_t_x550em,
3908 .led_off = ixgbe_led_off_t_x550em,
3909 .init_led_link_act = ixgbe_init_led_link_act_generic,
3910 .reset_hw = ixgbe_reset_hw_X550em,
3911 .get_media_type = ixgbe_get_media_type_X550em,
3912 .get_san_mac_addr = NULL,
3913 .get_wwn_prefix = NULL,
3914 .setup_link = &ixgbe_setup_mac_link_X540,
3915 .get_link_capabilities = ixgbe_get_link_capabilities_X550em,
3916 .get_bus_info = ixgbe_get_bus_info_X550em,
3917 .setup_sfp = ixgbe_setup_sfp_modules_X550em,
3918 .acquire_swfw_sync = ixgbe_acquire_swfw_sync_x550em_a,
3919 .release_swfw_sync = ixgbe_release_swfw_sync_x550em_a,
3920 .setup_fc = ixgbe_setup_fc_x550em,
3921 .fc_autoneg = ixgbe_fc_autoneg,
3922 .read_iosf_sb_reg = ixgbe_read_iosf_sb_reg_x550a,
3923 .write_iosf_sb_reg = ixgbe_write_iosf_sb_reg_x550a,
3924};
3925
3926static const struct ixgbe_mac_operations mac_ops_x550em_a_fw = {
3927 X550_COMMON_MAC
3928 .led_on = ixgbe_led_on_generic,
3929 .led_off = ixgbe_led_off_generic,
3930 .init_led_link_act = ixgbe_init_led_link_act_generic,
3931 .reset_hw = ixgbe_reset_hw_X550em,
3932 .get_media_type = ixgbe_get_media_type_X550em,
3933 .get_san_mac_addr = NULL,
3934 .get_wwn_prefix = NULL,
3935 .setup_link = NULL, /* defined later */
3936 .get_link_capabilities = ixgbe_get_link_capabilities_X550em,
3937 .get_bus_info = ixgbe_get_bus_info_X550em,
3938 .setup_sfp = ixgbe_setup_sfp_modules_X550em,
3939 .acquire_swfw_sync = ixgbe_acquire_swfw_sync_x550em_a,
3940 .release_swfw_sync = ixgbe_release_swfw_sync_x550em_a,
3941 .setup_fc = ixgbe_setup_fc_x550em,
3942 .fc_autoneg = ixgbe_fc_autoneg,
3943 .read_iosf_sb_reg = ixgbe_read_iosf_sb_reg_x550a,
3944 .write_iosf_sb_reg = ixgbe_write_iosf_sb_reg_x550a,
3945};
3946
3947#define X550_COMMON_EEP \
3948 .read = &ixgbe_read_ee_hostif_X550, \
3949 .read_buffer = &ixgbe_read_ee_hostif_buffer_X550, \
3950 .write = &ixgbe_write_ee_hostif_X550, \
3951 .write_buffer = &ixgbe_write_ee_hostif_buffer_X550, \
3952 .validate_checksum = &ixgbe_validate_eeprom_checksum_X550, \
3953 .update_checksum = &ixgbe_update_eeprom_checksum_X550, \
3954 .calc_checksum = &ixgbe_calc_eeprom_checksum_X550, \
3955
3956static const struct ixgbe_eeprom_operations eeprom_ops_X550 = {
3957 X550_COMMON_EEP
3958 .init_params = &ixgbe_init_eeprom_params_X550,
3959};
3960
3961static const struct ixgbe_eeprom_operations eeprom_ops_X550EM_x = {
3962 X550_COMMON_EEP
3963 .init_params = &ixgbe_init_eeprom_params_X540,
3964};
3965
3966#define X550_COMMON_PHY \
3967 .identify_sfp = &ixgbe_identify_module_generic, \
3968 .reset = NULL, \
3969 .setup_link_speed = &ixgbe_setup_phy_link_speed_generic, \
3970 .read_i2c_byte = &ixgbe_read_i2c_byte_generic, \
3971 .write_i2c_byte = &ixgbe_write_i2c_byte_generic, \
3972 .read_i2c_sff8472 = &ixgbe_read_i2c_sff8472_generic, \
3973 .read_i2c_eeprom = &ixgbe_read_i2c_eeprom_generic, \
3974 .write_i2c_eeprom = &ixgbe_write_i2c_eeprom_generic, \
3975 .setup_link = &ixgbe_setup_phy_link_generic, \
3976 .set_phy_power = NULL,
3977
3978static const struct ixgbe_phy_operations phy_ops_X550 = {
3979 X550_COMMON_PHY
3980 .check_overtemp = &ixgbe_tn_check_overtemp,
3981 .init = NULL,
3982 .identify = &ixgbe_identify_phy_generic,
3983 .read_reg = &ixgbe_read_phy_reg_generic,
3984 .write_reg = &ixgbe_write_phy_reg_generic,
3985};
3986
3987static const struct ixgbe_phy_operations phy_ops_X550EM_x = {
3988 X550_COMMON_PHY
3989 .check_overtemp = &ixgbe_tn_check_overtemp,
3990 .init = &ixgbe_init_phy_ops_X550em,
3991 .identify = &ixgbe_identify_phy_x550em,
3992 .read_reg = &ixgbe_read_phy_reg_generic,
3993 .write_reg = &ixgbe_write_phy_reg_generic,
3994};
3995
3996static const struct ixgbe_phy_operations phy_ops_x550em_x_fw = {
3997 X550_COMMON_PHY
3998 .check_overtemp = NULL,
3999 .init = ixgbe_init_phy_ops_X550em,
4000 .identify = ixgbe_identify_phy_x550em,
4001 .read_reg = NULL,
4002 .write_reg = NULL,
4003 .read_reg_mdi = NULL,
4004 .write_reg_mdi = NULL,
4005};
4006
4007static const struct ixgbe_phy_operations phy_ops_x550em_a = {
4008 X550_COMMON_PHY
4009 .check_overtemp = &ixgbe_tn_check_overtemp,
4010 .init = &ixgbe_init_phy_ops_X550em,
4011 .identify = &ixgbe_identify_phy_x550em,
4012 .read_reg = &ixgbe_read_phy_reg_x550a,
4013 .write_reg = &ixgbe_write_phy_reg_x550a,
4014 .read_reg_mdi = &ixgbe_read_phy_reg_mdi,
4015 .write_reg_mdi = &ixgbe_write_phy_reg_mdi,
4016};
4017
4018static const struct ixgbe_phy_operations phy_ops_x550em_a_fw = {
4019 X550_COMMON_PHY
4020 .check_overtemp = ixgbe_check_overtemp_fw,
4021 .init = ixgbe_init_phy_ops_X550em,
4022 .identify = ixgbe_identify_phy_fw,
4023 .read_reg = NULL,
4024 .write_reg = NULL,
4025 .read_reg_mdi = NULL,
4026 .write_reg_mdi = NULL,
4027};
4028
4029static const struct ixgbe_link_operations link_ops_x550em_x = {
4030 .read_link = &ixgbe_read_i2c_combined_generic,
4031 .read_link_unlocked = &ixgbe_read_i2c_combined_generic_unlocked,
4032 .write_link = &ixgbe_write_i2c_combined_generic,
4033 .write_link_unlocked = &ixgbe_write_i2c_combined_generic_unlocked,
4034};
4035
4036static const u32 ixgbe_mvals_X550[IXGBE_MVALS_IDX_LIMIT] = {
4037 IXGBE_MVALS_INIT(X550)
4038};
4039
4040static const u32 ixgbe_mvals_X550EM_x[IXGBE_MVALS_IDX_LIMIT] = {
4041 IXGBE_MVALS_INIT(X550EM_x)
4042};
4043
4044static const u32 ixgbe_mvals_x550em_a[IXGBE_MVALS_IDX_LIMIT] = {
4045 IXGBE_MVALS_INIT(X550EM_a)
4046};
4047
4048const struct ixgbe_info ixgbe_X550_info = {
4049 .mac = ixgbe_mac_X550,
4050 .get_invariants = &ixgbe_get_invariants_X540,
4051 .mac_ops = &mac_ops_X550,
4052 .eeprom_ops = &eeprom_ops_X550,
4053 .phy_ops = &phy_ops_X550,
4054 .mbx_ops = &mbx_ops_generic,
4055 .mvals = ixgbe_mvals_X550,
4056};
4057
4058const struct ixgbe_info ixgbe_X550EM_x_info = {
4059 .mac = ixgbe_mac_X550EM_x,
4060 .get_invariants = &ixgbe_get_invariants_X550_x,
4061 .mac_ops = &mac_ops_X550EM_x,
4062 .eeprom_ops = &eeprom_ops_X550EM_x,
4063 .phy_ops = &phy_ops_X550EM_x,
4064 .mbx_ops = &mbx_ops_generic,
4065 .mvals = ixgbe_mvals_X550EM_x,
4066 .link_ops = &link_ops_x550em_x,
4067};
4068
4069const struct ixgbe_info ixgbe_x550em_x_fw_info = {
4070 .mac = ixgbe_mac_X550EM_x,
4071 .get_invariants = ixgbe_get_invariants_X550_x_fw,
4072 .mac_ops = &mac_ops_X550EM_x_fw,
4073 .eeprom_ops = &eeprom_ops_X550EM_x,
4074 .phy_ops = &phy_ops_x550em_x_fw,
4075 .mbx_ops = &mbx_ops_generic,
4076 .mvals = ixgbe_mvals_X550EM_x,
4077};
4078
4079const struct ixgbe_info ixgbe_x550em_a_info = {
4080 .mac = ixgbe_mac_x550em_a,
4081 .get_invariants = &ixgbe_get_invariants_X550_a,
4082 .mac_ops = &mac_ops_x550em_a,
4083 .eeprom_ops = &eeprom_ops_X550EM_x,
4084 .phy_ops = &phy_ops_x550em_a,
4085 .mbx_ops = &mbx_ops_generic,
4086 .mvals = ixgbe_mvals_x550em_a,
4087};
4088
4089const struct ixgbe_info ixgbe_x550em_a_fw_info = {
4090 .mac = ixgbe_mac_x550em_a,
4091 .get_invariants = ixgbe_get_invariants_X550_a_fw,
4092 .mac_ops = &mac_ops_x550em_a_fw,
4093 .eeprom_ops = &eeprom_ops_X550EM_x,
4094 .phy_ops = &phy_ops_x550em_a_fw,
4095 .mbx_ops = &mbx_ops_generic,
4096 .mvals = ixgbe_mvals_x550em_a,
4097};