1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 1999 - 2018 Intel Corporation. */
3
4 #include "ixgbe_x540.h"
5 #include "ixgbe_type.h"
6 #include "ixgbe_common.h"
7 #include "ixgbe_phy.h"
8
9 static s32 ixgbe_setup_kr_speed_x550em(struct ixgbe_hw *, ixgbe_link_speed);
10 static s32 ixgbe_setup_fc_x550em(struct ixgbe_hw *);
11 static void ixgbe_fc_autoneg_fiber_x550em_a(struct ixgbe_hw *);
12 static void ixgbe_fc_autoneg_backplane_x550em_a(struct ixgbe_hw *);
13 static s32 ixgbe_setup_fc_backplane_x550em_a(struct ixgbe_hw *);
14
ixgbe_get_invariants_X550_x(struct ixgbe_hw * hw)15 static s32 ixgbe_get_invariants_X550_x(struct ixgbe_hw *hw)
16 {
17 struct ixgbe_mac_info *mac = &hw->mac;
18 struct ixgbe_phy_info *phy = &hw->phy;
19 struct ixgbe_link_info *link = &hw->link;
20
21 /* Start with X540 invariants, since so simular */
22 ixgbe_get_invariants_X540(hw);
23
24 if (mac->ops.get_media_type(hw) != ixgbe_media_type_copper)
25 phy->ops.set_phy_power = NULL;
26
27 link->addr = IXGBE_CS4227;
28
29 return 0;
30 }
31
ixgbe_get_invariants_X550_x_fw(struct ixgbe_hw * hw)32 static s32 ixgbe_get_invariants_X550_x_fw(struct ixgbe_hw *hw)
33 {
34 struct ixgbe_phy_info *phy = &hw->phy;
35
36 /* Start with X540 invariants, since so similar */
37 ixgbe_get_invariants_X540(hw);
38
39 phy->ops.set_phy_power = NULL;
40
41 return 0;
42 }
43
ixgbe_get_invariants_X550_a(struct ixgbe_hw * hw)44 static s32 ixgbe_get_invariants_X550_a(struct ixgbe_hw *hw)
45 {
46 struct ixgbe_mac_info *mac = &hw->mac;
47 struct ixgbe_phy_info *phy = &hw->phy;
48
49 /* Start with X540 invariants, since so simular */
50 ixgbe_get_invariants_X540(hw);
51
52 if (mac->ops.get_media_type(hw) != ixgbe_media_type_copper)
53 phy->ops.set_phy_power = NULL;
54
55 return 0;
56 }
57
ixgbe_get_invariants_X550_a_fw(struct ixgbe_hw * hw)58 static s32 ixgbe_get_invariants_X550_a_fw(struct ixgbe_hw *hw)
59 {
60 struct ixgbe_phy_info *phy = &hw->phy;
61
62 /* Start with X540 invariants, since so similar */
63 ixgbe_get_invariants_X540(hw);
64
65 phy->ops.set_phy_power = NULL;
66
67 return 0;
68 }
69
70 /** ixgbe_setup_mux_ctl - Setup ESDP register for I2C mux control
71 * @hw: pointer to hardware structure
72 **/
ixgbe_setup_mux_ctl(struct ixgbe_hw * hw)73 static void ixgbe_setup_mux_ctl(struct ixgbe_hw *hw)
74 {
75 u32 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
76
77 if (hw->bus.lan_id) {
78 esdp &= ~(IXGBE_ESDP_SDP1_NATIVE | IXGBE_ESDP_SDP1);
79 esdp |= IXGBE_ESDP_SDP1_DIR;
80 }
81 esdp &= ~(IXGBE_ESDP_SDP0_NATIVE | IXGBE_ESDP_SDP0_DIR);
82 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
83 IXGBE_WRITE_FLUSH(hw);
84 }
85
86 /**
87 * ixgbe_read_cs4227 - Read CS4227 register
88 * @hw: pointer to hardware structure
89 * @reg: register number to write
90 * @value: pointer to receive value read
91 *
92 * Returns status code
93 */
ixgbe_read_cs4227(struct ixgbe_hw * hw,u16 reg,u16 * value)94 static s32 ixgbe_read_cs4227(struct ixgbe_hw *hw, u16 reg, u16 *value)
95 {
96 return hw->link.ops.read_link_unlocked(hw, hw->link.addr, reg, value);
97 }
98
99 /**
100 * ixgbe_write_cs4227 - Write CS4227 register
101 * @hw: pointer to hardware structure
102 * @reg: register number to write
103 * @value: value to write to register
104 *
105 * Returns status code
106 */
ixgbe_write_cs4227(struct ixgbe_hw * hw,u16 reg,u16 value)107 static s32 ixgbe_write_cs4227(struct ixgbe_hw *hw, u16 reg, u16 value)
108 {
109 return hw->link.ops.write_link_unlocked(hw, hw->link.addr, reg, value);
110 }
111
112 /**
113 * ixgbe_read_pe - Read register from port expander
114 * @hw: pointer to hardware structure
115 * @reg: register number to read
116 * @value: pointer to receive read value
117 *
118 * Returns status code
119 */
ixgbe_read_pe(struct ixgbe_hw * hw,u8 reg,u8 * value)120 static s32 ixgbe_read_pe(struct ixgbe_hw *hw, u8 reg, u8 *value)
121 {
122 s32 status;
123
124 status = ixgbe_read_i2c_byte_generic_unlocked(hw, reg, IXGBE_PE, value);
125 if (status)
126 hw_err(hw, "port expander access failed with %d\n", status);
127 return status;
128 }
129
130 /**
131 * ixgbe_write_pe - Write register to port expander
132 * @hw: pointer to hardware structure
133 * @reg: register number to write
134 * @value: value to write
135 *
136 * Returns status code
137 */
ixgbe_write_pe(struct ixgbe_hw * hw,u8 reg,u8 value)138 static s32 ixgbe_write_pe(struct ixgbe_hw *hw, u8 reg, u8 value)
139 {
140 s32 status;
141
142 status = ixgbe_write_i2c_byte_generic_unlocked(hw, reg, IXGBE_PE,
143 value);
144 if (status)
145 hw_err(hw, "port expander access failed with %d\n", status);
146 return status;
147 }
148
149 /**
150 * ixgbe_reset_cs4227 - Reset CS4227 using port expander
151 * @hw: pointer to hardware structure
152 *
153 * This function assumes that the caller has acquired the proper semaphore.
154 * Returns error code
155 */
ixgbe_reset_cs4227(struct ixgbe_hw * hw)156 static s32 ixgbe_reset_cs4227(struct ixgbe_hw *hw)
157 {
158 s32 status;
159 u32 retry;
160 u16 value;
161 u8 reg;
162
163 /* Trigger hard reset. */
164 status = ixgbe_read_pe(hw, IXGBE_PE_OUTPUT, ®);
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 */
ixgbe_check_cs4227(struct ixgbe_hw * hw)225 static void ixgbe_check_cs4227(struct ixgbe_hw *hw)
226 {
227 u32 swfw_mask = hw->phy.phy_semaphore_mask;
228 s32 status;
229 u16 value;
230 u8 retry;
231
232 for (retry = 0; retry < IXGBE_CS4227_RETRIES; retry++) {
233 status = hw->mac.ops.acquire_swfw_sync(hw, swfw_mask);
234 if (status) {
235 hw_err(hw, "semaphore failed with %d\n", status);
236 msleep(IXGBE_CS4227_CHECK_DELAY);
237 continue;
238 }
239
240 /* Get status of reset flow. */
241 status = ixgbe_read_cs4227(hw, IXGBE_CS4227_SCRATCH, &value);
242 if (!status && value == IXGBE_CS4227_RESET_COMPLETE)
243 goto out;
244
245 if (status || value != IXGBE_CS4227_RESET_PENDING)
246 break;
247
248 /* Reset is pending. Wait and check again. */
249 hw->mac.ops.release_swfw_sync(hw, swfw_mask);
250 msleep(IXGBE_CS4227_CHECK_DELAY);
251 }
252 /* If still pending, assume other instance failed. */
253 if (retry == IXGBE_CS4227_RETRIES) {
254 status = hw->mac.ops.acquire_swfw_sync(hw, swfw_mask);
255 if (status) {
256 hw_err(hw, "semaphore failed with %d\n", status);
257 return;
258 }
259 }
260
261 /* Reset the CS4227. */
262 status = ixgbe_reset_cs4227(hw);
263 if (status) {
264 hw_err(hw, "CS4227 reset failed: %d", status);
265 goto out;
266 }
267
268 /* Reset takes so long, temporarily release semaphore in case the
269 * other driver instance is waiting for the reset indication.
270 */
271 ixgbe_write_cs4227(hw, IXGBE_CS4227_SCRATCH,
272 IXGBE_CS4227_RESET_PENDING);
273 hw->mac.ops.release_swfw_sync(hw, swfw_mask);
274 usleep_range(10000, 12000);
275 status = hw->mac.ops.acquire_swfw_sync(hw, swfw_mask);
276 if (status) {
277 hw_err(hw, "semaphore failed with %d", status);
278 return;
279 }
280
281 /* Record completion for next time. */
282 status = ixgbe_write_cs4227(hw, IXGBE_CS4227_SCRATCH,
283 IXGBE_CS4227_RESET_COMPLETE);
284
285 out:
286 hw->mac.ops.release_swfw_sync(hw, swfw_mask);
287 msleep(hw->eeprom.semaphore_delay);
288 }
289
290 /** ixgbe_identify_phy_x550em - Get PHY type based on device id
291 * @hw: pointer to hardware structure
292 *
293 * Returns error code
294 */
ixgbe_identify_phy_x550em(struct ixgbe_hw * hw)295 static s32 ixgbe_identify_phy_x550em(struct ixgbe_hw *hw)
296 {
297 switch (hw->device_id) {
298 case IXGBE_DEV_ID_X550EM_A_SFP:
299 if (hw->bus.lan_id)
300 hw->phy.phy_semaphore_mask = IXGBE_GSSR_PHY1_SM;
301 else
302 hw->phy.phy_semaphore_mask = IXGBE_GSSR_PHY0_SM;
303 return ixgbe_identify_module_generic(hw);
304 case IXGBE_DEV_ID_X550EM_X_SFP:
305 /* set up for CS4227 usage */
306 hw->phy.phy_semaphore_mask = IXGBE_GSSR_SHARED_I2C_SM;
307 ixgbe_setup_mux_ctl(hw);
308 ixgbe_check_cs4227(hw);
309 fallthrough;
310 case IXGBE_DEV_ID_X550EM_A_SFP_N:
311 return ixgbe_identify_module_generic(hw);
312 case IXGBE_DEV_ID_X550EM_X_KX4:
313 hw->phy.type = ixgbe_phy_x550em_kx4;
314 break;
315 case IXGBE_DEV_ID_X550EM_X_XFI:
316 hw->phy.type = ixgbe_phy_x550em_xfi;
317 break;
318 case IXGBE_DEV_ID_X550EM_X_KR:
319 case IXGBE_DEV_ID_X550EM_A_KR:
320 case IXGBE_DEV_ID_X550EM_A_KR_L:
321 hw->phy.type = ixgbe_phy_x550em_kr;
322 break;
323 case IXGBE_DEV_ID_X550EM_A_10G_T:
324 if (hw->bus.lan_id)
325 hw->phy.phy_semaphore_mask = IXGBE_GSSR_PHY1_SM;
326 else
327 hw->phy.phy_semaphore_mask = IXGBE_GSSR_PHY0_SM;
328 fallthrough;
329 case IXGBE_DEV_ID_X550EM_X_10G_T:
330 return ixgbe_identify_phy_generic(hw);
331 case IXGBE_DEV_ID_X550EM_X_1G_T:
332 hw->phy.type = ixgbe_phy_ext_1g_t;
333 break;
334 case IXGBE_DEV_ID_X550EM_A_1G_T:
335 case IXGBE_DEV_ID_X550EM_A_1G_T_L:
336 hw->phy.type = ixgbe_phy_fw;
337 hw->phy.ops.read_reg = NULL;
338 hw->phy.ops.write_reg = NULL;
339 if (hw->bus.lan_id)
340 hw->phy.phy_semaphore_mask |= IXGBE_GSSR_PHY1_SM;
341 else
342 hw->phy.phy_semaphore_mask |= IXGBE_GSSR_PHY0_SM;
343 break;
344 default:
345 break;
346 }
347 return 0;
348 }
349
ixgbe_read_phy_reg_x550em(struct ixgbe_hw * hw,u32 reg_addr,u32 device_type,u16 * phy_data)350 static s32 ixgbe_read_phy_reg_x550em(struct ixgbe_hw *hw, u32 reg_addr,
351 u32 device_type, u16 *phy_data)
352 {
353 return IXGBE_NOT_IMPLEMENTED;
354 }
355
ixgbe_write_phy_reg_x550em(struct ixgbe_hw * hw,u32 reg_addr,u32 device_type,u16 phy_data)356 static s32 ixgbe_write_phy_reg_x550em(struct ixgbe_hw *hw, u32 reg_addr,
357 u32 device_type, u16 phy_data)
358 {
359 return IXGBE_NOT_IMPLEMENTED;
360 }
361
362 /**
363 * ixgbe_read_i2c_combined_generic - Perform I2C read combined operation
364 * @hw: pointer to the hardware structure
365 * @addr: I2C bus address to read from
366 * @reg: I2C device register to read from
367 * @val: pointer to location to receive read value
368 *
369 * Returns an error code on error.
370 **/
ixgbe_read_i2c_combined_generic(struct ixgbe_hw * hw,u8 addr,u16 reg,u16 * val)371 static s32 ixgbe_read_i2c_combined_generic(struct ixgbe_hw *hw, u8 addr,
372 u16 reg, u16 *val)
373 {
374 return ixgbe_read_i2c_combined_generic_int(hw, addr, reg, val, true);
375 }
376
377 /**
378 * ixgbe_read_i2c_combined_generic_unlocked - Do I2C read combined operation
379 * @hw: pointer to the hardware structure
380 * @addr: I2C bus address to read from
381 * @reg: I2C device register to read from
382 * @val: pointer to location to receive read value
383 *
384 * Returns an error code on error.
385 **/
386 static s32
ixgbe_read_i2c_combined_generic_unlocked(struct ixgbe_hw * hw,u8 addr,u16 reg,u16 * val)387 ixgbe_read_i2c_combined_generic_unlocked(struct ixgbe_hw *hw, u8 addr,
388 u16 reg, u16 *val)
389 {
390 return ixgbe_read_i2c_combined_generic_int(hw, addr, reg, val, false);
391 }
392
393 /**
394 * ixgbe_write_i2c_combined_generic - Perform I2C write combined operation
395 * @hw: pointer to the hardware structure
396 * @addr: I2C bus address to write to
397 * @reg: I2C device register to write to
398 * @val: value to write
399 *
400 * Returns an error code on error.
401 **/
ixgbe_write_i2c_combined_generic(struct ixgbe_hw * hw,u8 addr,u16 reg,u16 val)402 static s32 ixgbe_write_i2c_combined_generic(struct ixgbe_hw *hw,
403 u8 addr, u16 reg, u16 val)
404 {
405 return ixgbe_write_i2c_combined_generic_int(hw, addr, reg, val, true);
406 }
407
408 /**
409 * ixgbe_write_i2c_combined_generic_unlocked - Do I2C write combined operation
410 * @hw: pointer to the hardware structure
411 * @addr: I2C bus address to write to
412 * @reg: I2C device register to write to
413 * @val: value to write
414 *
415 * Returns an error code on error.
416 **/
417 static s32
ixgbe_write_i2c_combined_generic_unlocked(struct ixgbe_hw * hw,u8 addr,u16 reg,u16 val)418 ixgbe_write_i2c_combined_generic_unlocked(struct ixgbe_hw *hw,
419 u8 addr, u16 reg, u16 val)
420 {
421 return ixgbe_write_i2c_combined_generic_int(hw, addr, reg, val, false);
422 }
423
424 /**
425 * ixgbe_fw_phy_activity - Perform an activity on a PHY
426 * @hw: pointer to hardware structure
427 * @activity: activity to perform
428 * @data: Pointer to 4 32-bit words of data
429 */
ixgbe_fw_phy_activity(struct ixgbe_hw * hw,u16 activity,u32 (* data)[FW_PHY_ACT_DATA_COUNT])430 s32 ixgbe_fw_phy_activity(struct ixgbe_hw *hw, u16 activity,
431 u32 (*data)[FW_PHY_ACT_DATA_COUNT])
432 {
433 union {
434 struct ixgbe_hic_phy_activity_req cmd;
435 struct ixgbe_hic_phy_activity_resp rsp;
436 } hic;
437 u16 retries = FW_PHY_ACT_RETRIES;
438 s32 rc;
439 u32 i;
440
441 do {
442 memset(&hic, 0, sizeof(hic));
443 hic.cmd.hdr.cmd = FW_PHY_ACT_REQ_CMD;
444 hic.cmd.hdr.buf_len = FW_PHY_ACT_REQ_LEN;
445 hic.cmd.hdr.checksum = FW_DEFAULT_CHECKSUM;
446 hic.cmd.port_number = hw->bus.lan_id;
447 hic.cmd.activity_id = cpu_to_le16(activity);
448 for (i = 0; i < ARRAY_SIZE(hic.cmd.data); ++i)
449 hic.cmd.data[i] = cpu_to_be32((*data)[i]);
450
451 rc = ixgbe_host_interface_command(hw, &hic.cmd, sizeof(hic.cmd),
452 IXGBE_HI_COMMAND_TIMEOUT,
453 true);
454 if (rc)
455 return rc;
456 if (hic.rsp.hdr.cmd_or_resp.ret_status ==
457 FW_CEM_RESP_STATUS_SUCCESS) {
458 for (i = 0; i < FW_PHY_ACT_DATA_COUNT; ++i)
459 (*data)[i] = be32_to_cpu(hic.rsp.data[i]);
460 return 0;
461 }
462 usleep_range(20, 30);
463 --retries;
464 } while (retries > 0);
465
466 return IXGBE_ERR_HOST_INTERFACE_COMMAND;
467 }
468
469 static const struct {
470 u16 fw_speed;
471 ixgbe_link_speed phy_speed;
472 } ixgbe_fw_map[] = {
473 { FW_PHY_ACT_LINK_SPEED_10, IXGBE_LINK_SPEED_10_FULL },
474 { FW_PHY_ACT_LINK_SPEED_100, IXGBE_LINK_SPEED_100_FULL },
475 { FW_PHY_ACT_LINK_SPEED_1G, IXGBE_LINK_SPEED_1GB_FULL },
476 { FW_PHY_ACT_LINK_SPEED_2_5G, IXGBE_LINK_SPEED_2_5GB_FULL },
477 { FW_PHY_ACT_LINK_SPEED_5G, IXGBE_LINK_SPEED_5GB_FULL },
478 { FW_PHY_ACT_LINK_SPEED_10G, IXGBE_LINK_SPEED_10GB_FULL },
479 };
480
481 /**
482 * ixgbe_get_phy_id_fw - Get the phy ID via firmware command
483 * @hw: pointer to hardware structure
484 *
485 * Returns error code
486 */
ixgbe_get_phy_id_fw(struct ixgbe_hw * hw)487 static s32 ixgbe_get_phy_id_fw(struct ixgbe_hw *hw)
488 {
489 u32 info[FW_PHY_ACT_DATA_COUNT] = { 0 };
490 u16 phy_speeds;
491 u16 phy_id_lo;
492 s32 rc;
493 u16 i;
494
495 if (hw->phy.id)
496 return 0;
497
498 rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_GET_PHY_INFO, &info);
499 if (rc)
500 return rc;
501
502 hw->phy.speeds_supported = 0;
503 phy_speeds = info[0] & FW_PHY_INFO_SPEED_MASK;
504 for (i = 0; i < ARRAY_SIZE(ixgbe_fw_map); ++i) {
505 if (phy_speeds & ixgbe_fw_map[i].fw_speed)
506 hw->phy.speeds_supported |= ixgbe_fw_map[i].phy_speed;
507 }
508
509 hw->phy.id = info[0] & FW_PHY_INFO_ID_HI_MASK;
510 phy_id_lo = info[1] & FW_PHY_INFO_ID_LO_MASK;
511 hw->phy.id |= phy_id_lo & IXGBE_PHY_REVISION_MASK;
512 hw->phy.revision = phy_id_lo & ~IXGBE_PHY_REVISION_MASK;
513 if (!hw->phy.id || hw->phy.id == IXGBE_PHY_REVISION_MASK)
514 return IXGBE_ERR_PHY_ADDR_INVALID;
515
516 hw->phy.autoneg_advertised = hw->phy.speeds_supported;
517 hw->phy.eee_speeds_supported = IXGBE_LINK_SPEED_100_FULL |
518 IXGBE_LINK_SPEED_1GB_FULL;
519 hw->phy.eee_speeds_advertised = hw->phy.eee_speeds_supported;
520 return 0;
521 }
522
523 /**
524 * ixgbe_identify_phy_fw - Get PHY type based on firmware command
525 * @hw: pointer to hardware structure
526 *
527 * Returns error code
528 */
ixgbe_identify_phy_fw(struct ixgbe_hw * hw)529 static s32 ixgbe_identify_phy_fw(struct ixgbe_hw *hw)
530 {
531 if (hw->bus.lan_id)
532 hw->phy.phy_semaphore_mask = IXGBE_GSSR_PHY1_SM;
533 else
534 hw->phy.phy_semaphore_mask = IXGBE_GSSR_PHY0_SM;
535
536 hw->phy.type = ixgbe_phy_fw;
537 hw->phy.ops.read_reg = NULL;
538 hw->phy.ops.write_reg = NULL;
539 return ixgbe_get_phy_id_fw(hw);
540 }
541
542 /**
543 * ixgbe_shutdown_fw_phy - Shutdown a firmware-controlled PHY
544 * @hw: pointer to hardware structure
545 *
546 * Returns error code
547 */
ixgbe_shutdown_fw_phy(struct ixgbe_hw * hw)548 static s32 ixgbe_shutdown_fw_phy(struct ixgbe_hw *hw)
549 {
550 u32 setup[FW_PHY_ACT_DATA_COUNT] = { 0 };
551
552 setup[0] = FW_PHY_ACT_FORCE_LINK_DOWN_OFF;
553 return ixgbe_fw_phy_activity(hw, FW_PHY_ACT_FORCE_LINK_DOWN, &setup);
554 }
555
556 /**
557 * ixgbe_setup_fw_link - Setup firmware-controlled PHYs
558 * @hw: pointer to hardware structure
559 */
ixgbe_setup_fw_link(struct ixgbe_hw * hw)560 static s32 ixgbe_setup_fw_link(struct ixgbe_hw *hw)
561 {
562 u32 setup[FW_PHY_ACT_DATA_COUNT] = { 0 };
563 s32 rc;
564 u16 i;
565
566 if (hw->phy.reset_disable || ixgbe_check_reset_blocked(hw))
567 return 0;
568
569 if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
570 hw_err(hw, "rx_pause not valid in strict IEEE mode\n");
571 return IXGBE_ERR_INVALID_LINK_SETTINGS;
572 }
573
574 switch (hw->fc.requested_mode) {
575 case ixgbe_fc_full:
576 setup[0] |= FW_PHY_ACT_SETUP_LINK_PAUSE_RXTX <<
577 FW_PHY_ACT_SETUP_LINK_PAUSE_SHIFT;
578 break;
579 case ixgbe_fc_rx_pause:
580 setup[0] |= FW_PHY_ACT_SETUP_LINK_PAUSE_RX <<
581 FW_PHY_ACT_SETUP_LINK_PAUSE_SHIFT;
582 break;
583 case ixgbe_fc_tx_pause:
584 setup[0] |= FW_PHY_ACT_SETUP_LINK_PAUSE_TX <<
585 FW_PHY_ACT_SETUP_LINK_PAUSE_SHIFT;
586 break;
587 default:
588 break;
589 }
590
591 for (i = 0; i < ARRAY_SIZE(ixgbe_fw_map); ++i) {
592 if (hw->phy.autoneg_advertised & ixgbe_fw_map[i].phy_speed)
593 setup[0] |= ixgbe_fw_map[i].fw_speed;
594 }
595 setup[0] |= FW_PHY_ACT_SETUP_LINK_HP | FW_PHY_ACT_SETUP_LINK_AN;
596
597 if (hw->phy.eee_speeds_advertised)
598 setup[0] |= FW_PHY_ACT_SETUP_LINK_EEE;
599
600 rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_SETUP_LINK, &setup);
601 if (rc)
602 return rc;
603 if (setup[0] == FW_PHY_ACT_SETUP_LINK_RSP_DOWN)
604 return IXGBE_ERR_OVERTEMP;
605 return 0;
606 }
607
608 /**
609 * ixgbe_fc_autoneg_fw - Set up flow control for FW-controlled PHYs
610 * @hw: pointer to hardware structure
611 *
612 * Called at init time to set up flow control.
613 */
ixgbe_fc_autoneg_fw(struct ixgbe_hw * hw)614 static s32 ixgbe_fc_autoneg_fw(struct ixgbe_hw *hw)
615 {
616 if (hw->fc.requested_mode == ixgbe_fc_default)
617 hw->fc.requested_mode = ixgbe_fc_full;
618
619 return ixgbe_setup_fw_link(hw);
620 }
621
622 /** ixgbe_init_eeprom_params_X550 - Initialize EEPROM params
623 * @hw: pointer to hardware structure
624 *
625 * Initializes the EEPROM parameters ixgbe_eeprom_info within the
626 * ixgbe_hw struct in order to set up EEPROM access.
627 **/
ixgbe_init_eeprom_params_X550(struct ixgbe_hw * hw)628 static s32 ixgbe_init_eeprom_params_X550(struct ixgbe_hw *hw)
629 {
630 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
631 u32 eec;
632 u16 eeprom_size;
633
634 if (eeprom->type == ixgbe_eeprom_uninitialized) {
635 eeprom->semaphore_delay = 10;
636 eeprom->type = ixgbe_flash;
637
638 eec = IXGBE_READ_REG(hw, IXGBE_EEC(hw));
639 eeprom_size = (u16)((eec & IXGBE_EEC_SIZE) >>
640 IXGBE_EEC_SIZE_SHIFT);
641 eeprom->word_size = BIT(eeprom_size +
642 IXGBE_EEPROM_WORD_SIZE_SHIFT);
643
644 hw_dbg(hw, "Eeprom params: type = %d, size = %d\n",
645 eeprom->type, eeprom->word_size);
646 }
647
648 return 0;
649 }
650
651 /**
652 * ixgbe_iosf_wait - Wait for IOSF command completion
653 * @hw: pointer to hardware structure
654 * @ctrl: pointer to location to receive final IOSF control value
655 *
656 * Return: failing status on timeout
657 *
658 * Note: ctrl can be NULL if the IOSF control register value is not needed
659 */
ixgbe_iosf_wait(struct ixgbe_hw * hw,u32 * ctrl)660 static s32 ixgbe_iosf_wait(struct ixgbe_hw *hw, u32 *ctrl)
661 {
662 u32 i, command;
663
664 /* Check every 10 usec to see if the address cycle completed.
665 * The SB IOSF BUSY bit will clear when the operation is
666 * complete.
667 */
668 for (i = 0; i < IXGBE_MDIO_COMMAND_TIMEOUT; i++) {
669 command = IXGBE_READ_REG(hw, IXGBE_SB_IOSF_INDIRECT_CTRL);
670 if (!(command & IXGBE_SB_IOSF_CTRL_BUSY))
671 break;
672 udelay(10);
673 }
674 if (ctrl)
675 *ctrl = command;
676 if (i == IXGBE_MDIO_COMMAND_TIMEOUT) {
677 hw_dbg(hw, "IOSF wait timed out\n");
678 return IXGBE_ERR_PHY;
679 }
680
681 return 0;
682 }
683
684 /** ixgbe_read_iosf_sb_reg_x550 - Writes a value to specified register of the
685 * IOSF device
686 * @hw: pointer to hardware structure
687 * @reg_addr: 32 bit PHY register to write
688 * @device_type: 3 bit device type
689 * @phy_data: Pointer to read data from the register
690 **/
ixgbe_read_iosf_sb_reg_x550(struct ixgbe_hw * hw,u32 reg_addr,u32 device_type,u32 * data)691 static s32 ixgbe_read_iosf_sb_reg_x550(struct ixgbe_hw *hw, u32 reg_addr,
692 u32 device_type, u32 *data)
693 {
694 u32 gssr = IXGBE_GSSR_PHY1_SM | IXGBE_GSSR_PHY0_SM;
695 u32 command, error;
696 s32 ret;
697
698 ret = hw->mac.ops.acquire_swfw_sync(hw, gssr);
699 if (ret)
700 return ret;
701
702 ret = ixgbe_iosf_wait(hw, NULL);
703 if (ret)
704 goto out;
705
706 command = ((reg_addr << IXGBE_SB_IOSF_CTRL_ADDR_SHIFT) |
707 (device_type << IXGBE_SB_IOSF_CTRL_TARGET_SELECT_SHIFT));
708
709 /* Write IOSF control register */
710 IXGBE_WRITE_REG(hw, IXGBE_SB_IOSF_INDIRECT_CTRL, command);
711
712 ret = ixgbe_iosf_wait(hw, &command);
713
714 if ((command & IXGBE_SB_IOSF_CTRL_RESP_STAT_MASK) != 0) {
715 error = (command & IXGBE_SB_IOSF_CTRL_CMPL_ERR_MASK) >>
716 IXGBE_SB_IOSF_CTRL_CMPL_ERR_SHIFT;
717 hw_dbg(hw, "Failed to read, error %x\n", error);
718 return IXGBE_ERR_PHY;
719 }
720
721 if (!ret)
722 *data = IXGBE_READ_REG(hw, IXGBE_SB_IOSF_INDIRECT_DATA);
723
724 out:
725 hw->mac.ops.release_swfw_sync(hw, gssr);
726 return ret;
727 }
728
729 /**
730 * ixgbe_get_phy_token - Get the token for shared PHY access
731 * @hw: Pointer to hardware structure
732 */
ixgbe_get_phy_token(struct ixgbe_hw * hw)733 static s32 ixgbe_get_phy_token(struct ixgbe_hw *hw)
734 {
735 struct ixgbe_hic_phy_token_req token_cmd;
736 s32 status;
737
738 token_cmd.hdr.cmd = FW_PHY_TOKEN_REQ_CMD;
739 token_cmd.hdr.buf_len = FW_PHY_TOKEN_REQ_LEN;
740 token_cmd.hdr.cmd_or_resp.cmd_resv = 0;
741 token_cmd.hdr.checksum = FW_DEFAULT_CHECKSUM;
742 token_cmd.port_number = hw->bus.lan_id;
743 token_cmd.command_type = FW_PHY_TOKEN_REQ;
744 token_cmd.pad = 0;
745 status = ixgbe_host_interface_command(hw, &token_cmd, sizeof(token_cmd),
746 IXGBE_HI_COMMAND_TIMEOUT,
747 true);
748 if (status)
749 return status;
750 if (token_cmd.hdr.cmd_or_resp.ret_status == FW_PHY_TOKEN_OK)
751 return 0;
752 if (token_cmd.hdr.cmd_or_resp.ret_status != FW_PHY_TOKEN_RETRY)
753 return IXGBE_ERR_FW_RESP_INVALID;
754
755 return IXGBE_ERR_TOKEN_RETRY;
756 }
757
758 /**
759 * ixgbe_put_phy_token - Put the token for shared PHY access
760 * @hw: Pointer to hardware structure
761 */
ixgbe_put_phy_token(struct ixgbe_hw * hw)762 static s32 ixgbe_put_phy_token(struct ixgbe_hw *hw)
763 {
764 struct ixgbe_hic_phy_token_req token_cmd;
765 s32 status;
766
767 token_cmd.hdr.cmd = FW_PHY_TOKEN_REQ_CMD;
768 token_cmd.hdr.buf_len = FW_PHY_TOKEN_REQ_LEN;
769 token_cmd.hdr.cmd_or_resp.cmd_resv = 0;
770 token_cmd.hdr.checksum = FW_DEFAULT_CHECKSUM;
771 token_cmd.port_number = hw->bus.lan_id;
772 token_cmd.command_type = FW_PHY_TOKEN_REL;
773 token_cmd.pad = 0;
774 status = ixgbe_host_interface_command(hw, &token_cmd, sizeof(token_cmd),
775 IXGBE_HI_COMMAND_TIMEOUT,
776 true);
777 if (status)
778 return status;
779 if (token_cmd.hdr.cmd_or_resp.ret_status == FW_PHY_TOKEN_OK)
780 return 0;
781 return IXGBE_ERR_FW_RESP_INVALID;
782 }
783
784 /**
785 * ixgbe_write_iosf_sb_reg_x550a - Write to IOSF PHY register
786 * @hw: pointer to hardware structure
787 * @reg_addr: 32 bit PHY register to write
788 * @device_type: 3 bit device type
789 * @data: Data to write to the register
790 **/
ixgbe_write_iosf_sb_reg_x550a(struct ixgbe_hw * hw,u32 reg_addr,__always_unused u32 device_type,u32 data)791 static s32 ixgbe_write_iosf_sb_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr,
792 __always_unused u32 device_type,
793 u32 data)
794 {
795 struct ixgbe_hic_internal_phy_req write_cmd;
796
797 memset(&write_cmd, 0, sizeof(write_cmd));
798 write_cmd.hdr.cmd = FW_INT_PHY_REQ_CMD;
799 write_cmd.hdr.buf_len = FW_INT_PHY_REQ_LEN;
800 write_cmd.hdr.checksum = FW_DEFAULT_CHECKSUM;
801 write_cmd.port_number = hw->bus.lan_id;
802 write_cmd.command_type = FW_INT_PHY_REQ_WRITE;
803 write_cmd.address = cpu_to_be16(reg_addr);
804 write_cmd.write_data = cpu_to_be32(data);
805
806 return ixgbe_host_interface_command(hw, &write_cmd, sizeof(write_cmd),
807 IXGBE_HI_COMMAND_TIMEOUT, false);
808 }
809
810 /**
811 * ixgbe_read_iosf_sb_reg_x550a - Read from IOSF PHY register
812 * @hw: pointer to hardware structure
813 * @reg_addr: 32 bit PHY register to write
814 * @device_type: 3 bit device type
815 * @data: Pointer to read data from the register
816 **/
ixgbe_read_iosf_sb_reg_x550a(struct ixgbe_hw * hw,u32 reg_addr,__always_unused u32 device_type,u32 * data)817 static s32 ixgbe_read_iosf_sb_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr,
818 __always_unused u32 device_type,
819 u32 *data)
820 {
821 union {
822 struct ixgbe_hic_internal_phy_req cmd;
823 struct ixgbe_hic_internal_phy_resp rsp;
824 } hic;
825 s32 status;
826
827 memset(&hic, 0, sizeof(hic));
828 hic.cmd.hdr.cmd = FW_INT_PHY_REQ_CMD;
829 hic.cmd.hdr.buf_len = FW_INT_PHY_REQ_LEN;
830 hic.cmd.hdr.checksum = FW_DEFAULT_CHECKSUM;
831 hic.cmd.port_number = hw->bus.lan_id;
832 hic.cmd.command_type = FW_INT_PHY_REQ_READ;
833 hic.cmd.address = cpu_to_be16(reg_addr);
834
835 status = ixgbe_host_interface_command(hw, &hic.cmd, sizeof(hic.cmd),
836 IXGBE_HI_COMMAND_TIMEOUT, true);
837
838 /* Extract the register value from the response. */
839 *data = be32_to_cpu(hic.rsp.read_data);
840
841 return status;
842 }
843
844 /** ixgbe_read_ee_hostif_buffer_X550- Read EEPROM word(s) using hostif
845 * @hw: pointer to hardware structure
846 * @offset: offset of word in the EEPROM to read
847 * @words: number of words
848 * @data: word(s) read from the EEPROM
849 *
850 * Reads a 16 bit word(s) from the EEPROM using the hostif.
851 **/
ixgbe_read_ee_hostif_buffer_X550(struct ixgbe_hw * hw,u16 offset,u16 words,u16 * data)852 static s32 ixgbe_read_ee_hostif_buffer_X550(struct ixgbe_hw *hw,
853 u16 offset, u16 words, u16 *data)
854 {
855 const u32 mask = IXGBE_GSSR_SW_MNG_SM | IXGBE_GSSR_EEP_SM;
856 struct ixgbe_hic_read_shadow_ram buffer;
857 u32 current_word = 0;
858 u16 words_to_read;
859 s32 status;
860 u32 i;
861
862 /* Take semaphore for the entire operation. */
863 status = hw->mac.ops.acquire_swfw_sync(hw, mask);
864 if (status) {
865 hw_dbg(hw, "EEPROM read buffer - semaphore failed\n");
866 return status;
867 }
868
869 while (words) {
870 if (words > FW_MAX_READ_BUFFER_SIZE / 2)
871 words_to_read = FW_MAX_READ_BUFFER_SIZE / 2;
872 else
873 words_to_read = words;
874
875 buffer.hdr.req.cmd = FW_READ_SHADOW_RAM_CMD;
876 buffer.hdr.req.buf_lenh = 0;
877 buffer.hdr.req.buf_lenl = FW_READ_SHADOW_RAM_LEN;
878 buffer.hdr.req.checksum = FW_DEFAULT_CHECKSUM;
879
880 /* convert offset from words to bytes */
881 buffer.address = (__force u32)cpu_to_be32((offset +
882 current_word) * 2);
883 buffer.length = (__force u16)cpu_to_be16(words_to_read * 2);
884 buffer.pad2 = 0;
885 buffer.pad3 = 0;
886
887 status = ixgbe_hic_unlocked(hw, (u32 *)&buffer, sizeof(buffer),
888 IXGBE_HI_COMMAND_TIMEOUT);
889 if (status) {
890 hw_dbg(hw, "Host interface command failed\n");
891 goto out;
892 }
893
894 for (i = 0; i < words_to_read; i++) {
895 u32 reg = IXGBE_FLEX_MNG + (FW_NVM_DATA_OFFSET << 2) +
896 2 * i;
897 u32 value = IXGBE_READ_REG(hw, reg);
898
899 data[current_word] = (u16)(value & 0xffff);
900 current_word++;
901 i++;
902 if (i < words_to_read) {
903 value >>= 16;
904 data[current_word] = (u16)(value & 0xffff);
905 current_word++;
906 }
907 }
908 words -= words_to_read;
909 }
910
911 out:
912 hw->mac.ops.release_swfw_sync(hw, mask);
913 return status;
914 }
915
916 /** ixgbe_checksum_ptr_x550 - Checksum one pointer region
917 * @hw: pointer to hardware structure
918 * @ptr: pointer offset in eeprom
919 * @size: size of section pointed by ptr, if 0 first word will be used as size
920 * @csum: address of checksum to update
921 *
922 * Returns error status for any failure
923 **/
ixgbe_checksum_ptr_x550(struct ixgbe_hw * hw,u16 ptr,u16 size,u16 * csum,u16 * buffer,u32 buffer_size)924 static s32 ixgbe_checksum_ptr_x550(struct ixgbe_hw *hw, u16 ptr,
925 u16 size, u16 *csum, u16 *buffer,
926 u32 buffer_size)
927 {
928 u16 buf[256];
929 s32 status;
930 u16 length, bufsz, i, start;
931 u16 *local_buffer;
932
933 bufsz = ARRAY_SIZE(buf);
934
935 /* Read a chunk at the pointer location */
936 if (!buffer) {
937 status = ixgbe_read_ee_hostif_buffer_X550(hw, ptr, bufsz, buf);
938 if (status) {
939 hw_dbg(hw, "Failed to read EEPROM image\n");
940 return status;
941 }
942 local_buffer = buf;
943 } else {
944 if (buffer_size < ptr)
945 return IXGBE_ERR_PARAM;
946 local_buffer = &buffer[ptr];
947 }
948
949 if (size) {
950 start = 0;
951 length = size;
952 } else {
953 start = 1;
954 length = local_buffer[0];
955
956 /* Skip pointer section if length is invalid. */
957 if (length == 0xFFFF || length == 0 ||
958 (ptr + length) >= hw->eeprom.word_size)
959 return 0;
960 }
961
962 if (buffer && ((u32)start + (u32)length > buffer_size))
963 return IXGBE_ERR_PARAM;
964
965 for (i = start; length; i++, length--) {
966 if (i == bufsz && !buffer) {
967 ptr += bufsz;
968 i = 0;
969 if (length < bufsz)
970 bufsz = length;
971
972 /* Read a chunk at the pointer location */
973 status = ixgbe_read_ee_hostif_buffer_X550(hw, ptr,
974 bufsz, buf);
975 if (status) {
976 hw_dbg(hw, "Failed to read EEPROM image\n");
977 return status;
978 }
979 }
980 *csum += local_buffer[i];
981 }
982 return 0;
983 }
984
985 /** ixgbe_calc_checksum_X550 - Calculates and returns the checksum
986 * @hw: pointer to hardware structure
987 * @buffer: pointer to buffer containing calculated checksum
988 * @buffer_size: size of buffer
989 *
990 * Returns a negative error code on error, or the 16-bit checksum
991 **/
ixgbe_calc_checksum_X550(struct ixgbe_hw * hw,u16 * buffer,u32 buffer_size)992 static s32 ixgbe_calc_checksum_X550(struct ixgbe_hw *hw, u16 *buffer,
993 u32 buffer_size)
994 {
995 u16 eeprom_ptrs[IXGBE_EEPROM_LAST_WORD + 1];
996 u16 *local_buffer;
997 s32 status;
998 u16 checksum = 0;
999 u16 pointer, i, size;
1000
1001 hw->eeprom.ops.init_params(hw);
1002
1003 if (!buffer) {
1004 /* Read pointer area */
1005 status = ixgbe_read_ee_hostif_buffer_X550(hw, 0,
1006 IXGBE_EEPROM_LAST_WORD + 1,
1007 eeprom_ptrs);
1008 if (status) {
1009 hw_dbg(hw, "Failed to read EEPROM image\n");
1010 return status;
1011 }
1012 local_buffer = eeprom_ptrs;
1013 } else {
1014 if (buffer_size < IXGBE_EEPROM_LAST_WORD)
1015 return IXGBE_ERR_PARAM;
1016 local_buffer = buffer;
1017 }
1018
1019 /* For X550 hardware include 0x0-0x41 in the checksum, skip the
1020 * checksum word itself
1021 */
1022 for (i = 0; i <= IXGBE_EEPROM_LAST_WORD; i++)
1023 if (i != IXGBE_EEPROM_CHECKSUM)
1024 checksum += local_buffer[i];
1025
1026 /* Include all data from pointers 0x3, 0x6-0xE. This excludes the
1027 * FW, PHY module, and PCIe Expansion/Option ROM pointers.
1028 */
1029 for (i = IXGBE_PCIE_ANALOG_PTR_X550; i < IXGBE_FW_PTR; i++) {
1030 if (i == IXGBE_PHY_PTR || i == IXGBE_OPTION_ROM_PTR)
1031 continue;
1032
1033 pointer = local_buffer[i];
1034
1035 /* Skip pointer section if the pointer is invalid. */
1036 if (pointer == 0xFFFF || pointer == 0 ||
1037 pointer >= hw->eeprom.word_size)
1038 continue;
1039
1040 switch (i) {
1041 case IXGBE_PCIE_GENERAL_PTR:
1042 size = IXGBE_IXGBE_PCIE_GENERAL_SIZE;
1043 break;
1044 case IXGBE_PCIE_CONFIG0_PTR:
1045 case IXGBE_PCIE_CONFIG1_PTR:
1046 size = IXGBE_PCIE_CONFIG_SIZE;
1047 break;
1048 default:
1049 size = 0;
1050 break;
1051 }
1052
1053 status = ixgbe_checksum_ptr_x550(hw, pointer, size, &checksum,
1054 buffer, buffer_size);
1055 if (status)
1056 return status;
1057 }
1058
1059 checksum = (u16)IXGBE_EEPROM_SUM - checksum;
1060
1061 return (s32)checksum;
1062 }
1063
1064 /** ixgbe_calc_eeprom_checksum_X550 - Calculates and returns the checksum
1065 * @hw: pointer to hardware structure
1066 *
1067 * Returns a negative error code on error, or the 16-bit checksum
1068 **/
ixgbe_calc_eeprom_checksum_X550(struct ixgbe_hw * hw)1069 static s32 ixgbe_calc_eeprom_checksum_X550(struct ixgbe_hw *hw)
1070 {
1071 return ixgbe_calc_checksum_X550(hw, NULL, 0);
1072 }
1073
1074 /** ixgbe_read_ee_hostif_X550 - Read EEPROM word using a host interface command
1075 * @hw: pointer to hardware structure
1076 * @offset: offset of word in the EEPROM to read
1077 * @data: word read from the EEPROM
1078 *
1079 * Reads a 16 bit word from the EEPROM using the hostif.
1080 **/
ixgbe_read_ee_hostif_X550(struct ixgbe_hw * hw,u16 offset,u16 * data)1081 static s32 ixgbe_read_ee_hostif_X550(struct ixgbe_hw *hw, u16 offset, u16 *data)
1082 {
1083 const u32 mask = IXGBE_GSSR_SW_MNG_SM | IXGBE_GSSR_EEP_SM;
1084 struct ixgbe_hic_read_shadow_ram buffer;
1085 s32 status;
1086
1087 buffer.hdr.req.cmd = FW_READ_SHADOW_RAM_CMD;
1088 buffer.hdr.req.buf_lenh = 0;
1089 buffer.hdr.req.buf_lenl = FW_READ_SHADOW_RAM_LEN;
1090 buffer.hdr.req.checksum = FW_DEFAULT_CHECKSUM;
1091
1092 /* convert offset from words to bytes */
1093 buffer.address = (__force u32)cpu_to_be32(offset * 2);
1094 /* one word */
1095 buffer.length = (__force u16)cpu_to_be16(sizeof(u16));
1096
1097 status = hw->mac.ops.acquire_swfw_sync(hw, mask);
1098 if (status)
1099 return status;
1100
1101 status = ixgbe_hic_unlocked(hw, (u32 *)&buffer, sizeof(buffer),
1102 IXGBE_HI_COMMAND_TIMEOUT);
1103 if (!status) {
1104 *data = (u16)IXGBE_READ_REG_ARRAY(hw, IXGBE_FLEX_MNG,
1105 FW_NVM_DATA_OFFSET);
1106 }
1107
1108 hw->mac.ops.release_swfw_sync(hw, mask);
1109 return status;
1110 }
1111
1112 /** ixgbe_validate_eeprom_checksum_X550 - Validate EEPROM checksum
1113 * @hw: pointer to hardware structure
1114 * @checksum_val: calculated checksum
1115 *
1116 * Performs checksum calculation and validates the EEPROM checksum. If the
1117 * caller does not need checksum_val, the value can be NULL.
1118 **/
ixgbe_validate_eeprom_checksum_X550(struct ixgbe_hw * hw,u16 * checksum_val)1119 static s32 ixgbe_validate_eeprom_checksum_X550(struct ixgbe_hw *hw,
1120 u16 *checksum_val)
1121 {
1122 s32 status;
1123 u16 checksum;
1124 u16 read_checksum = 0;
1125
1126 /* Read the first word from the EEPROM. If this times out or fails, do
1127 * not continue or we could be in for a very long wait while every
1128 * EEPROM read fails
1129 */
1130 status = hw->eeprom.ops.read(hw, 0, &checksum);
1131 if (status) {
1132 hw_dbg(hw, "EEPROM read failed\n");
1133 return status;
1134 }
1135
1136 status = hw->eeprom.ops.calc_checksum(hw);
1137 if (status < 0)
1138 return status;
1139
1140 checksum = (u16)(status & 0xffff);
1141
1142 status = ixgbe_read_ee_hostif_X550(hw, IXGBE_EEPROM_CHECKSUM,
1143 &read_checksum);
1144 if (status)
1145 return status;
1146
1147 /* Verify read checksum from EEPROM is the same as
1148 * calculated checksum
1149 */
1150 if (read_checksum != checksum) {
1151 status = IXGBE_ERR_EEPROM_CHECKSUM;
1152 hw_dbg(hw, "Invalid EEPROM checksum");
1153 }
1154
1155 /* If the user cares, return the calculated checksum */
1156 if (checksum_val)
1157 *checksum_val = checksum;
1158
1159 return status;
1160 }
1161
1162 /** ixgbe_write_ee_hostif_X550 - Write EEPROM word using hostif
1163 * @hw: pointer to hardware structure
1164 * @offset: offset of word in the EEPROM to write
1165 * @data: word write to the EEPROM
1166 *
1167 * Write a 16 bit word to the EEPROM using the hostif.
1168 **/
ixgbe_write_ee_hostif_data_X550(struct ixgbe_hw * hw,u16 offset,u16 data)1169 static s32 ixgbe_write_ee_hostif_data_X550(struct ixgbe_hw *hw, u16 offset,
1170 u16 data)
1171 {
1172 s32 status;
1173 struct ixgbe_hic_write_shadow_ram buffer;
1174
1175 buffer.hdr.req.cmd = FW_WRITE_SHADOW_RAM_CMD;
1176 buffer.hdr.req.buf_lenh = 0;
1177 buffer.hdr.req.buf_lenl = FW_WRITE_SHADOW_RAM_LEN;
1178 buffer.hdr.req.checksum = FW_DEFAULT_CHECKSUM;
1179
1180 /* one word */
1181 buffer.length = cpu_to_be16(sizeof(u16));
1182 buffer.data = data;
1183 buffer.address = cpu_to_be32(offset * 2);
1184
1185 status = ixgbe_host_interface_command(hw, &buffer, sizeof(buffer),
1186 IXGBE_HI_COMMAND_TIMEOUT, false);
1187 return status;
1188 }
1189
1190 /** ixgbe_write_ee_hostif_X550 - Write EEPROM word using hostif
1191 * @hw: pointer to hardware structure
1192 * @offset: offset of word in the EEPROM to write
1193 * @data: word write to the EEPROM
1194 *
1195 * Write a 16 bit word to the EEPROM using the hostif.
1196 **/
ixgbe_write_ee_hostif_X550(struct ixgbe_hw * hw,u16 offset,u16 data)1197 static s32 ixgbe_write_ee_hostif_X550(struct ixgbe_hw *hw, u16 offset, u16 data)
1198 {
1199 s32 status = 0;
1200
1201 if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM) == 0) {
1202 status = ixgbe_write_ee_hostif_data_X550(hw, offset, data);
1203 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
1204 } else {
1205 hw_dbg(hw, "write ee hostif failed to get semaphore");
1206 status = IXGBE_ERR_SWFW_SYNC;
1207 }
1208
1209 return status;
1210 }
1211
1212 /** ixgbe_update_flash_X550 - Instruct HW to copy EEPROM to Flash device
1213 * @hw: pointer to hardware structure
1214 *
1215 * Issue a shadow RAM dump to FW to copy EEPROM from shadow RAM to the flash.
1216 **/
ixgbe_update_flash_X550(struct ixgbe_hw * hw)1217 static s32 ixgbe_update_flash_X550(struct ixgbe_hw *hw)
1218 {
1219 s32 status = 0;
1220 union ixgbe_hic_hdr2 buffer;
1221
1222 buffer.req.cmd = FW_SHADOW_RAM_DUMP_CMD;
1223 buffer.req.buf_lenh = 0;
1224 buffer.req.buf_lenl = FW_SHADOW_RAM_DUMP_LEN;
1225 buffer.req.checksum = FW_DEFAULT_CHECKSUM;
1226
1227 status = ixgbe_host_interface_command(hw, &buffer, sizeof(buffer),
1228 IXGBE_HI_COMMAND_TIMEOUT, false);
1229 return status;
1230 }
1231
1232 /**
1233 * ixgbe_get_bus_info_X550em - Set PCI bus info
1234 * @hw: pointer to hardware structure
1235 *
1236 * Sets bus link width and speed to unknown because X550em is
1237 * not a PCI device.
1238 **/
ixgbe_get_bus_info_X550em(struct ixgbe_hw * hw)1239 static s32 ixgbe_get_bus_info_X550em(struct ixgbe_hw *hw)
1240 {
1241 hw->bus.type = ixgbe_bus_type_internal;
1242 hw->bus.width = ixgbe_bus_width_unknown;
1243 hw->bus.speed = ixgbe_bus_speed_unknown;
1244
1245 hw->mac.ops.set_lan_id(hw);
1246
1247 return 0;
1248 }
1249
1250 /**
1251 * ixgbe_fw_recovery_mode_X550 - Check FW NVM recovery mode
1252 * @hw: pointer t hardware structure
1253 *
1254 * Returns true if in FW NVM recovery mode.
1255 */
ixgbe_fw_recovery_mode_X550(struct ixgbe_hw * hw)1256 static bool ixgbe_fw_recovery_mode_X550(struct ixgbe_hw *hw)
1257 {
1258 u32 fwsm;
1259
1260 fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM(hw));
1261 return !!(fwsm & IXGBE_FWSM_FW_NVM_RECOVERY_MODE);
1262 }
1263
1264 /** ixgbe_disable_rx_x550 - Disable RX unit
1265 *
1266 * Enables the Rx DMA unit for x550
1267 **/
ixgbe_disable_rx_x550(struct ixgbe_hw * hw)1268 static void ixgbe_disable_rx_x550(struct ixgbe_hw *hw)
1269 {
1270 u32 rxctrl, pfdtxgswc;
1271 s32 status;
1272 struct ixgbe_hic_disable_rxen fw_cmd;
1273
1274 rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
1275 if (rxctrl & IXGBE_RXCTRL_RXEN) {
1276 pfdtxgswc = IXGBE_READ_REG(hw, IXGBE_PFDTXGSWC);
1277 if (pfdtxgswc & IXGBE_PFDTXGSWC_VT_LBEN) {
1278 pfdtxgswc &= ~IXGBE_PFDTXGSWC_VT_LBEN;
1279 IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, pfdtxgswc);
1280 hw->mac.set_lben = true;
1281 } else {
1282 hw->mac.set_lben = false;
1283 }
1284
1285 fw_cmd.hdr.cmd = FW_DISABLE_RXEN_CMD;
1286 fw_cmd.hdr.buf_len = FW_DISABLE_RXEN_LEN;
1287 fw_cmd.hdr.checksum = FW_DEFAULT_CHECKSUM;
1288 fw_cmd.port_number = hw->bus.lan_id;
1289
1290 status = ixgbe_host_interface_command(hw, &fw_cmd,
1291 sizeof(struct ixgbe_hic_disable_rxen),
1292 IXGBE_HI_COMMAND_TIMEOUT, true);
1293
1294 /* If we fail - disable RX using register write */
1295 if (status) {
1296 rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
1297 if (rxctrl & IXGBE_RXCTRL_RXEN) {
1298 rxctrl &= ~IXGBE_RXCTRL_RXEN;
1299 IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl);
1300 }
1301 }
1302 }
1303 }
1304
1305 /** ixgbe_update_eeprom_checksum_X550 - Updates the EEPROM checksum and flash
1306 * @hw: pointer to hardware structure
1307 *
1308 * After writing EEPROM to shadow RAM using EEWR register, software calculates
1309 * checksum and updates the EEPROM and instructs the hardware to update
1310 * the flash.
1311 **/
ixgbe_update_eeprom_checksum_X550(struct ixgbe_hw * hw)1312 static s32 ixgbe_update_eeprom_checksum_X550(struct ixgbe_hw *hw)
1313 {
1314 s32 status;
1315 u16 checksum = 0;
1316
1317 /* Read the first word from the EEPROM. If this times out or fails, do
1318 * not continue or we could be in for a very long wait while every
1319 * EEPROM read fails
1320 */
1321 status = ixgbe_read_ee_hostif_X550(hw, 0, &checksum);
1322 if (status) {
1323 hw_dbg(hw, "EEPROM read failed\n");
1324 return status;
1325 }
1326
1327 status = ixgbe_calc_eeprom_checksum_X550(hw);
1328 if (status < 0)
1329 return status;
1330
1331 checksum = (u16)(status & 0xffff);
1332
1333 status = ixgbe_write_ee_hostif_X550(hw, IXGBE_EEPROM_CHECKSUM,
1334 checksum);
1335 if (status)
1336 return status;
1337
1338 status = ixgbe_update_flash_X550(hw);
1339
1340 return status;
1341 }
1342
1343 /** ixgbe_write_ee_hostif_buffer_X550 - Write EEPROM word(s) using hostif
1344 * @hw: pointer to hardware structure
1345 * @offset: offset of word in the EEPROM to write
1346 * @words: number of words
1347 * @data: word(s) write to the EEPROM
1348 *
1349 *
1350 * Write a 16 bit word(s) to the EEPROM using the hostif.
1351 **/
ixgbe_write_ee_hostif_buffer_X550(struct ixgbe_hw * hw,u16 offset,u16 words,u16 * data)1352 static s32 ixgbe_write_ee_hostif_buffer_X550(struct ixgbe_hw *hw,
1353 u16 offset, u16 words,
1354 u16 *data)
1355 {
1356 s32 status = 0;
1357 u32 i = 0;
1358
1359 /* Take semaphore for the entire operation. */
1360 status = hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
1361 if (status) {
1362 hw_dbg(hw, "EEPROM write buffer - semaphore failed\n");
1363 return status;
1364 }
1365
1366 for (i = 0; i < words; i++) {
1367 status = ixgbe_write_ee_hostif_data_X550(hw, offset + i,
1368 data[i]);
1369 if (status) {
1370 hw_dbg(hw, "Eeprom buffered write failed\n");
1371 break;
1372 }
1373 }
1374
1375 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
1376
1377 return status;
1378 }
1379
1380 /** ixgbe_write_iosf_sb_reg_x550 - Writes a value to specified register of the
1381 * IOSF device
1382 *
1383 * @hw: pointer to hardware structure
1384 * @reg_addr: 32 bit PHY register to write
1385 * @device_type: 3 bit device type
1386 * @data: Data to write to the register
1387 **/
ixgbe_write_iosf_sb_reg_x550(struct ixgbe_hw * hw,u32 reg_addr,u32 device_type,u32 data)1388 static s32 ixgbe_write_iosf_sb_reg_x550(struct ixgbe_hw *hw, u32 reg_addr,
1389 u32 device_type, u32 data)
1390 {
1391 u32 gssr = IXGBE_GSSR_PHY1_SM | IXGBE_GSSR_PHY0_SM;
1392 u32 command, error;
1393 s32 ret;
1394
1395 ret = hw->mac.ops.acquire_swfw_sync(hw, gssr);
1396 if (ret)
1397 return ret;
1398
1399 ret = ixgbe_iosf_wait(hw, NULL);
1400 if (ret)
1401 goto out;
1402
1403 command = ((reg_addr << IXGBE_SB_IOSF_CTRL_ADDR_SHIFT) |
1404 (device_type << IXGBE_SB_IOSF_CTRL_TARGET_SELECT_SHIFT));
1405
1406 /* Write IOSF control register */
1407 IXGBE_WRITE_REG(hw, IXGBE_SB_IOSF_INDIRECT_CTRL, command);
1408
1409 /* Write IOSF data register */
1410 IXGBE_WRITE_REG(hw, IXGBE_SB_IOSF_INDIRECT_DATA, data);
1411
1412 ret = ixgbe_iosf_wait(hw, &command);
1413
1414 if ((command & IXGBE_SB_IOSF_CTRL_RESP_STAT_MASK) != 0) {
1415 error = (command & IXGBE_SB_IOSF_CTRL_CMPL_ERR_MASK) >>
1416 IXGBE_SB_IOSF_CTRL_CMPL_ERR_SHIFT;
1417 hw_dbg(hw, "Failed to write, error %x\n", error);
1418 return IXGBE_ERR_PHY;
1419 }
1420
1421 out:
1422 hw->mac.ops.release_swfw_sync(hw, gssr);
1423 return ret;
1424 }
1425
1426 /**
1427 * ixgbe_setup_ixfi_x550em_x - MAC specific iXFI configuration
1428 * @hw: pointer to hardware structure
1429 *
1430 * iXfI configuration needed for ixgbe_mac_X550EM_x devices.
1431 **/
ixgbe_setup_ixfi_x550em_x(struct ixgbe_hw * hw)1432 static s32 ixgbe_setup_ixfi_x550em_x(struct ixgbe_hw *hw)
1433 {
1434 s32 status;
1435 u32 reg_val;
1436
1437 /* Disable training protocol FSM. */
1438 status = ixgbe_read_iosf_sb_reg_x550(hw,
1439 IXGBE_KRM_RX_TRN_LINKUP_CTRL(hw->bus.lan_id),
1440 IXGBE_SB_IOSF_TARGET_KR_PHY, ®_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 **/
ixgbe_restart_an_internal_phy_x550em(struct ixgbe_hw * hw)1504 static s32 ixgbe_restart_an_internal_phy_x550em(struct ixgbe_hw *hw)
1505 {
1506 s32 status;
1507 u32 link_ctrl;
1508
1509 /* Restart auto-negotiation. */
1510 status = hw->mac.ops.read_iosf_sb_reg(hw,
1511 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1512 IXGBE_SB_IOSF_TARGET_KR_PHY, &link_ctrl);
1513
1514 if (status) {
1515 hw_dbg(hw, "Auto-negotiation did not complete\n");
1516 return status;
1517 }
1518
1519 link_ctrl |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_RESTART;
1520 status = hw->mac.ops.write_iosf_sb_reg(hw,
1521 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1522 IXGBE_SB_IOSF_TARGET_KR_PHY, link_ctrl);
1523
1524 if (hw->mac.type == ixgbe_mac_x550em_a) {
1525 u32 flx_mask_st20;
1526
1527 /* Indicate to FW that AN restart has been asserted */
1528 status = hw->mac.ops.read_iosf_sb_reg(hw,
1529 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1530 IXGBE_SB_IOSF_TARGET_KR_PHY, &flx_mask_st20);
1531
1532 if (status) {
1533 hw_dbg(hw, "Auto-negotiation did not complete\n");
1534 return status;
1535 }
1536
1537 flx_mask_st20 |= IXGBE_KRM_PMD_FLX_MASK_ST20_FW_AN_RESTART;
1538 status = hw->mac.ops.write_iosf_sb_reg(hw,
1539 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1540 IXGBE_SB_IOSF_TARGET_KR_PHY, flx_mask_st20);
1541 }
1542
1543 return status;
1544 }
1545
1546 /** ixgbe_setup_ixfi_x550em - Configure the KR PHY for iXFI mode.
1547 * @hw: pointer to hardware structure
1548 * @speed: the link speed to force
1549 *
1550 * Configures the integrated KR PHY to use iXFI mode. Used to connect an
1551 * internal and external PHY at a specific speed, without autonegotiation.
1552 **/
ixgbe_setup_ixfi_x550em(struct ixgbe_hw * hw,ixgbe_link_speed * speed)1553 static s32 ixgbe_setup_ixfi_x550em(struct ixgbe_hw *hw, ixgbe_link_speed *speed)
1554 {
1555 struct ixgbe_mac_info *mac = &hw->mac;
1556 s32 status;
1557 u32 reg_val;
1558
1559 /* iXFI is only supported with X552 */
1560 if (mac->type != ixgbe_mac_X550EM_x)
1561 return IXGBE_ERR_LINK_SETUP;
1562
1563 /* Disable AN and force speed to 10G Serial. */
1564 status = ixgbe_read_iosf_sb_reg_x550(hw,
1565 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1566 IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val);
1567 if (status)
1568 return status;
1569
1570 reg_val &= ~IXGBE_KRM_LINK_CTRL_1_TETH_AN_ENABLE;
1571 reg_val &= ~IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_MASK;
1572
1573 /* Select forced link speed for internal PHY. */
1574 switch (*speed) {
1575 case IXGBE_LINK_SPEED_10GB_FULL:
1576 reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_10G;
1577 break;
1578 case IXGBE_LINK_SPEED_1GB_FULL:
1579 reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_1G;
1580 break;
1581 default:
1582 /* Other link speeds are not supported by internal KR PHY. */
1583 return IXGBE_ERR_LINK_SETUP;
1584 }
1585
1586 status = ixgbe_write_iosf_sb_reg_x550(hw,
1587 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1588 IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1589 if (status)
1590 return status;
1591
1592 /* Additional configuration needed for x550em_x */
1593 if (hw->mac.type == ixgbe_mac_X550EM_x) {
1594 status = ixgbe_setup_ixfi_x550em_x(hw);
1595 if (status)
1596 return status;
1597 }
1598
1599 /* Toggle port SW reset by AN reset. */
1600 status = ixgbe_restart_an_internal_phy_x550em(hw);
1601
1602 return status;
1603 }
1604
1605 /**
1606 * ixgbe_supported_sfp_modules_X550em - Check if SFP module type is supported
1607 * @hw: pointer to hardware structure
1608 * @linear: true if SFP module is linear
1609 */
ixgbe_supported_sfp_modules_X550em(struct ixgbe_hw * hw,bool * linear)1610 static s32 ixgbe_supported_sfp_modules_X550em(struct ixgbe_hw *hw, bool *linear)
1611 {
1612 switch (hw->phy.sfp_type) {
1613 case ixgbe_sfp_type_not_present:
1614 return IXGBE_ERR_SFP_NOT_PRESENT;
1615 case ixgbe_sfp_type_da_cu_core0:
1616 case ixgbe_sfp_type_da_cu_core1:
1617 *linear = true;
1618 break;
1619 case ixgbe_sfp_type_srlr_core0:
1620 case ixgbe_sfp_type_srlr_core1:
1621 case ixgbe_sfp_type_da_act_lmt_core0:
1622 case ixgbe_sfp_type_da_act_lmt_core1:
1623 case ixgbe_sfp_type_1g_sx_core0:
1624 case ixgbe_sfp_type_1g_sx_core1:
1625 case ixgbe_sfp_type_1g_lx_core0:
1626 case ixgbe_sfp_type_1g_lx_core1:
1627 *linear = false;
1628 break;
1629 case ixgbe_sfp_type_unknown:
1630 case ixgbe_sfp_type_1g_cu_core0:
1631 case ixgbe_sfp_type_1g_cu_core1:
1632 default:
1633 return IXGBE_ERR_SFP_NOT_SUPPORTED;
1634 }
1635
1636 return 0;
1637 }
1638
1639 /**
1640 * ixgbe_setup_mac_link_sfp_x550em - Configure the KR PHY for SFP.
1641 * @hw: pointer to hardware structure
1642 * @speed: the link speed to force
1643 * @autoneg_wait_to_complete: unused
1644 *
1645 * Configures the extern PHY and the integrated KR PHY for SFP support.
1646 */
1647 static s32
ixgbe_setup_mac_link_sfp_x550em(struct ixgbe_hw * hw,ixgbe_link_speed speed,__always_unused bool autoneg_wait_to_complete)1648 ixgbe_setup_mac_link_sfp_x550em(struct ixgbe_hw *hw,
1649 ixgbe_link_speed speed,
1650 __always_unused bool autoneg_wait_to_complete)
1651 {
1652 s32 status;
1653 u16 reg_slice, reg_val;
1654 bool setup_linear = false;
1655
1656 /* Check if SFP module is supported and linear */
1657 status = ixgbe_supported_sfp_modules_X550em(hw, &setup_linear);
1658
1659 /* If no SFP module present, then return success. Return success since
1660 * there is no reason to configure CS4227 and SFP not present error is
1661 * not accepted in the setup MAC link flow.
1662 */
1663 if (status == IXGBE_ERR_SFP_NOT_PRESENT)
1664 return 0;
1665
1666 if (status)
1667 return status;
1668
1669 /* Configure internal PHY for KR/KX. */
1670 ixgbe_setup_kr_speed_x550em(hw, speed);
1671
1672 /* Configure CS4227 LINE side to proper mode. */
1673 reg_slice = IXGBE_CS4227_LINE_SPARE24_LSB + (hw->bus.lan_id << 12);
1674 if (setup_linear)
1675 reg_val = (IXGBE_CS4227_EDC_MODE_CX1 << 1) | 0x1;
1676 else
1677 reg_val = (IXGBE_CS4227_EDC_MODE_SR << 1) | 0x1;
1678
1679 status = hw->link.ops.write_link(hw, hw->link.addr, reg_slice,
1680 reg_val);
1681
1682 return status;
1683 }
1684
1685 /**
1686 * ixgbe_setup_sfi_x550a - Configure the internal PHY for native SFI mode
1687 * @hw: pointer to hardware structure
1688 * @speed: the link speed to force
1689 *
1690 * Configures the integrated PHY for native SFI mode. Used to connect the
1691 * internal PHY directly to an SFP cage, without autonegotiation.
1692 **/
ixgbe_setup_sfi_x550a(struct ixgbe_hw * hw,ixgbe_link_speed * speed)1693 static s32 ixgbe_setup_sfi_x550a(struct ixgbe_hw *hw, ixgbe_link_speed *speed)
1694 {
1695 struct ixgbe_mac_info *mac = &hw->mac;
1696 s32 status;
1697 u32 reg_val;
1698
1699 /* Disable all AN and force speed to 10G Serial. */
1700 status = mac->ops.read_iosf_sb_reg(hw,
1701 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1702 IXGBE_SB_IOSF_TARGET_KR_PHY, ®_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 */
1742 static s32
ixgbe_setup_mac_link_sfp_n(struct ixgbe_hw * hw,ixgbe_link_speed speed,__always_unused bool autoneg_wait_to_complete)1743 ixgbe_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 */
1791 static s32
ixgbe_setup_mac_link_sfp_x550a(struct ixgbe_hw * hw,ixgbe_link_speed speed,__always_unused bool autoneg_wait_to_complete)1792 ixgbe_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 **/
ixgbe_setup_mac_link_t_X550em(struct ixgbe_hw * hw,ixgbe_link_speed speed,bool autoneg_wait)1870 static 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 **/
ixgbe_check_link_t_X550em(struct ixgbe_hw * hw,ixgbe_link_speed * speed,bool * link_up,bool link_up_wait_to_complete)1906 static 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 */
1950 static s32
ixgbe_setup_sgmii(struct ixgbe_hw * hw,__always_unused ixgbe_link_speed speed,__always_unused bool autoneg_wait_to_complete)1951 ixgbe_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 */
ixgbe_setup_sgmii_fw(struct ixgbe_hw * hw,ixgbe_link_speed speed,bool autoneg_wait)2023 static 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 */
ixgbe_fc_autoneg_sgmii_x550em_a(struct ixgbe_hw * hw)2096 static 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
2129 out:
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 **/
ixgbe_init_mac_link_ops_X550em_a(struct ixgbe_hw * hw)2141 static 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 **/
ixgbe_init_mac_link_ops_X550em(struct ixgbe_hw * hw)2173 static 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 */
ixgbe_setup_sfp_modules_X550em(struct ixgbe_hw * hw)2228 static 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 **/
ixgbe_get_link_capabilities_X550em(struct ixgbe_hw * hw,ixgbe_link_speed * speed,bool * autoneg)2249 static 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 fallthrough;
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 **/
ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw * hw,bool * lsc)2329 static 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 **/
ixgbe_enable_lasi_ext_t_x550em(struct ixgbe_hw * hw)2413 static 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 **/
ixgbe_handle_lasi_ext_t_x550em(struct ixgbe_hw * hw)2507 static 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 **/
ixgbe_setup_kr_speed_x550em(struct ixgbe_hw * hw,ixgbe_link_speed speed)2530 static 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 **/
ixgbe_setup_kr_x550em(struct ixgbe_hw * hw)2585 static 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 **/
ixgbe_ext_phy_t_x550em_get_link(struct ixgbe_hw * hw,bool * link_up)2603 static 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 **/
ixgbe_setup_internal_phy_t_x550em(struct ixgbe_hw * hw)2637 static 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 **/
ixgbe_reset_phy_t_X550em(struct ixgbe_hw * hw)2697 static 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 **/
ixgbe_led_on_t_x550em(struct ixgbe_hw * hw,u32 led_idx)2715 static 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 **/
ixgbe_led_off_t_x550em(struct ixgbe_hw * hw,u32 led_idx)2737 static 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 **/
ixgbe_set_fw_drv_ver_x550(struct ixgbe_hw * hw,u8 maj,u8 min,u8 build,u8 sub,u16 len,const char * driver_ver)2769 static 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 **/
ixgbe_get_lcd_t_x550em(struct ixgbe_hw * hw,ixgbe_link_speed * lcd_speed)2816 static 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 */
ixgbe_setup_fc_x550em(struct ixgbe_hw * hw)2851 static 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 **/
ixgbe_fc_autoneg_backplane_x550em_a(struct ixgbe_hw * hw)2936 static 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
2997 out:
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 **/
ixgbe_fc_autoneg_fiber_x550em_a(struct ixgbe_hw * hw)3010 static 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 **/
ixgbe_enter_lplu_t_x550em(struct ixgbe_hw * hw)3023 static 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 */
ixgbe_reset_phy_fw(struct ixgbe_hw * hw)3117 static 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 */
ixgbe_check_overtemp_fw(struct ixgbe_hw * hw)3141 static 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 */
ixgbe_read_mng_if_sel_x550em(struct ixgbe_hw * hw)3163 static 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 **/
ixgbe_init_phy_ops_X550em(struct ixgbe_hw * hw)3188 static 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 */
ixgbe_get_media_type_X550em(struct ixgbe_hw * hw)3278 static 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 **/
ixgbe_init_ext_t_x550em(struct ixgbe_hw * hw)3317 static 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 */
ixgbe_set_mdio_speed(struct ixgbe_hw * hw)3357 static 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 **/
ixgbe_reset_hw_X550em(struct ixgbe_hw * hw)3391 static 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
3434 mac_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 **/
ixgbe_set_ethertype_anti_spoofing_X550(struct ixgbe_hw * hw,bool enable,int vf)3508 static 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 **/
ixgbe_set_source_address_pruning_X550(struct ixgbe_hw * hw,bool enable,unsigned int pool)3529 static 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 **/
ixgbe_setup_fc_backplane_x550em_a(struct ixgbe_hw * hw)3557 static 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 */
ixgbe_set_mux(struct ixgbe_hw * hw,u8 state)3640 static 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 */
ixgbe_acquire_swfw_sync_X550em(struct ixgbe_hw * hw,u32 mask)3662 static 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 */
ixgbe_release_swfw_sync_X550em(struct ixgbe_hw * hw,u32 mask)3683 static 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 */
ixgbe_acquire_swfw_sync_x550em_a(struct ixgbe_hw * hw,u32 mask)3698 static 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 */
ixgbe_release_swfw_sync_x550em_a(struct ixgbe_hw * hw,u32 mask)3733 static 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 */
ixgbe_read_phy_reg_x550a(struct ixgbe_hw * hw,u32 reg_addr,u32 device_type,u16 * phy_data)3755 static 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 */
ixgbe_write_phy_reg_x550a(struct ixgbe_hw * hw,u32 reg_addr,u32 device_type,u16 phy_data)3781 static 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
3839 static 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
3861 static 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
3883 static 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
3905 static 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
3926 static 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
3956 static const struct ixgbe_eeprom_operations eeprom_ops_X550 = {
3957 X550_COMMON_EEP
3958 .init_params = &ixgbe_init_eeprom_params_X550,
3959 };
3960
3961 static 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
3978 static 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
3987 static 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
3996 static 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
4007 static 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
4018 static 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
4029 static 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
4036 static const u32 ixgbe_mvals_X550[IXGBE_MVALS_IDX_LIMIT] = {
4037 IXGBE_MVALS_INIT(X550)
4038 };
4039
4040 static const u32 ixgbe_mvals_X550EM_x[IXGBE_MVALS_IDX_LIMIT] = {
4041 IXGBE_MVALS_INIT(X550EM_x)
4042 };
4043
4044 static const u32 ixgbe_mvals_x550em_a[IXGBE_MVALS_IDX_LIMIT] = {
4045 IXGBE_MVALS_INIT(X550EM_a)
4046 };
4047
4048 const 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
4058 const 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
4069 const 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
4079 const 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
4089 const 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 };
4098
