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 (void)mac->ops.write_iosf_sb_reg(hw,
1725 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1726 IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1727
1728 /* change mode enforcement rules to hybrid */
1729 (void)mac->ops.read_iosf_sb_reg(hw,
1730 IXGBE_KRM_FLX_TMRS_CTRL_ST31(hw->bus.lan_id),
1731 IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val);
1732 reg_val |= 0x0400;
1733
1734 (void)mac->ops.write_iosf_sb_reg(hw,
1735 IXGBE_KRM_FLX_TMRS_CTRL_ST31(hw->bus.lan_id),
1736 IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1737
1738 /* manually control the config */
1739 (void)mac->ops.read_iosf_sb_reg(hw,
1740 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1741 IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val);
1742 reg_val |= 0x20002240;
1743
1744 (void)mac->ops.write_iosf_sb_reg(hw,
1745 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1746 IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1747
1748 /* move the AN base page values */
1749 (void)mac->ops.read_iosf_sb_reg(hw,
1750 IXGBE_KRM_PCS_KX_AN(hw->bus.lan_id),
1751 IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val);
1752 reg_val |= 0x1;
1753
1754 (void)mac->ops.write_iosf_sb_reg(hw,
1755 IXGBE_KRM_PCS_KX_AN(hw->bus.lan_id),
1756 IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1757
1758 /* set the AN37 over CB mode */
1759 (void)mac->ops.read_iosf_sb_reg(hw,
1760 IXGBE_KRM_AN_CNTL_4(hw->bus.lan_id),
1761 IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val);
1762 reg_val |= 0x20000000;
1763
1764 (void)mac->ops.write_iosf_sb_reg(hw,
1765 IXGBE_KRM_AN_CNTL_4(hw->bus.lan_id),
1766 IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1767
1768 /* restart AN manually */
1769 (void)mac->ops.read_iosf_sb_reg(hw,
1770 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1771 IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val);
1772 reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_RESTART;
1773
1774 (void)mac->ops.write_iosf_sb_reg(hw,
1775 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
1776 IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
1777
1778 /* Toggle port SW reset by AN reset. */
1779 status = ixgbe_restart_an_internal_phy_x550em(hw);
1780
1781 return status;
1782 }
1783
1784 /**
1785 * ixgbe_setup_mac_link_sfp_n - Setup internal PHY for native SFP
1786 * @hw: pointer to hardware structure
1787 * @speed: link speed
1788 * @autoneg_wait_to_complete: unused
1789 *
1790 * Configure the integrated PHY for native SFP support.
1791 */
1792 static s32
ixgbe_setup_mac_link_sfp_n(struct ixgbe_hw * hw,ixgbe_link_speed speed,__always_unused bool autoneg_wait_to_complete)1793 ixgbe_setup_mac_link_sfp_n(struct ixgbe_hw *hw, ixgbe_link_speed speed,
1794 __always_unused bool autoneg_wait_to_complete)
1795 {
1796 bool setup_linear = false;
1797 u32 reg_phy_int;
1798 s32 ret_val;
1799
1800 /* Check if SFP module is supported and linear */
1801 ret_val = ixgbe_supported_sfp_modules_X550em(hw, &setup_linear);
1802
1803 /* If no SFP module present, then return success. Return success since
1804 * SFP not present error is not excepted in the setup MAC link flow.
1805 */
1806 if (ret_val == IXGBE_ERR_SFP_NOT_PRESENT)
1807 return 0;
1808
1809 if (ret_val)
1810 return ret_val;
1811
1812 /* Configure internal PHY for native SFI based on module type */
1813 ret_val = hw->mac.ops.read_iosf_sb_reg(hw,
1814 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1815 IXGBE_SB_IOSF_TARGET_KR_PHY, ®_phy_int);
1816 if (ret_val)
1817 return ret_val;
1818
1819 reg_phy_int &= IXGBE_KRM_PMD_FLX_MASK_ST20_SFI_10G_DA;
1820 if (!setup_linear)
1821 reg_phy_int |= IXGBE_KRM_PMD_FLX_MASK_ST20_SFI_10G_SR;
1822
1823 ret_val = hw->mac.ops.write_iosf_sb_reg(hw,
1824 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
1825 IXGBE_SB_IOSF_TARGET_KR_PHY, reg_phy_int);
1826 if (ret_val)
1827 return ret_val;
1828
1829 /* Setup SFI internal link. */
1830 return ixgbe_setup_sfi_x550a(hw, &speed);
1831 }
1832
1833 /**
1834 * ixgbe_setup_mac_link_sfp_x550a - Setup internal PHY for SFP
1835 * @hw: pointer to hardware structure
1836 * @speed: link speed
1837 * @autoneg_wait_to_complete: unused
1838 *
1839 * Configure the integrated PHY for SFP support.
1840 */
1841 static s32
ixgbe_setup_mac_link_sfp_x550a(struct ixgbe_hw * hw,ixgbe_link_speed speed,__always_unused bool autoneg_wait_to_complete)1842 ixgbe_setup_mac_link_sfp_x550a(struct ixgbe_hw *hw, ixgbe_link_speed speed,
1843 __always_unused bool autoneg_wait_to_complete)
1844 {
1845 u32 reg_slice, slice_offset;
1846 bool setup_linear = false;
1847 u16 reg_phy_ext;
1848 s32 ret_val;
1849
1850 /* Check if SFP module is supported and linear */
1851 ret_val = ixgbe_supported_sfp_modules_X550em(hw, &setup_linear);
1852
1853 /* If no SFP module present, then return success. Return success since
1854 * SFP not present error is not excepted in the setup MAC link flow.
1855 */
1856 if (ret_val == IXGBE_ERR_SFP_NOT_PRESENT)
1857 return 0;
1858
1859 if (ret_val)
1860 return ret_val;
1861
1862 /* Configure internal PHY for KR/KX. */
1863 ixgbe_setup_kr_speed_x550em(hw, speed);
1864
1865 if (hw->phy.mdio.prtad == MDIO_PRTAD_NONE)
1866 return IXGBE_ERR_PHY_ADDR_INVALID;
1867
1868 /* Get external PHY SKU id */
1869 ret_val = hw->phy.ops.read_reg(hw, IXGBE_CS4227_EFUSE_PDF_SKU,
1870 IXGBE_MDIO_ZERO_DEV_TYPE, ®_phy_ext);
1871 if (ret_val)
1872 return ret_val;
1873
1874 /* When configuring quad port CS4223, the MAC instance is part
1875 * of the slice offset.
1876 */
1877 if (reg_phy_ext == IXGBE_CS4223_SKU_ID)
1878 slice_offset = (hw->bus.lan_id +
1879 (hw->bus.instance_id << 1)) << 12;
1880 else
1881 slice_offset = hw->bus.lan_id << 12;
1882
1883 /* Configure CS4227/CS4223 LINE side to proper mode. */
1884 reg_slice = IXGBE_CS4227_LINE_SPARE24_LSB + slice_offset;
1885
1886 ret_val = hw->phy.ops.read_reg(hw, reg_slice,
1887 IXGBE_MDIO_ZERO_DEV_TYPE, ®_phy_ext);
1888 if (ret_val)
1889 return ret_val;
1890
1891 reg_phy_ext &= ~((IXGBE_CS4227_EDC_MODE_CX1 << 1) |
1892 (IXGBE_CS4227_EDC_MODE_SR << 1));
1893
1894 if (setup_linear)
1895 reg_phy_ext |= (IXGBE_CS4227_EDC_MODE_CX1 << 1) | 1;
1896 else
1897 reg_phy_ext |= (IXGBE_CS4227_EDC_MODE_SR << 1) | 1;
1898
1899 ret_val = hw->phy.ops.write_reg(hw, reg_slice,
1900 IXGBE_MDIO_ZERO_DEV_TYPE, reg_phy_ext);
1901 if (ret_val)
1902 return ret_val;
1903
1904 /* Flush previous write with a read */
1905 return hw->phy.ops.read_reg(hw, reg_slice,
1906 IXGBE_MDIO_ZERO_DEV_TYPE, ®_phy_ext);
1907 }
1908
1909 /**
1910 * ixgbe_setup_mac_link_t_X550em - Sets the auto advertised link speed
1911 * @hw: pointer to hardware structure
1912 * @speed: new link speed
1913 * @autoneg_wait: true when waiting for completion is needed
1914 *
1915 * Setup internal/external PHY link speed based on link speed, then set
1916 * external PHY auto advertised link speed.
1917 *
1918 * Returns error status for any failure
1919 **/
ixgbe_setup_mac_link_t_X550em(struct ixgbe_hw * hw,ixgbe_link_speed speed,bool autoneg_wait)1920 static s32 ixgbe_setup_mac_link_t_X550em(struct ixgbe_hw *hw,
1921 ixgbe_link_speed speed,
1922 bool autoneg_wait)
1923 {
1924 s32 status;
1925 ixgbe_link_speed force_speed;
1926
1927 /* Setup internal/external PHY link speed to iXFI (10G), unless
1928 * only 1G is auto advertised then setup KX link.
1929 */
1930 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
1931 force_speed = IXGBE_LINK_SPEED_10GB_FULL;
1932 else
1933 force_speed = IXGBE_LINK_SPEED_1GB_FULL;
1934
1935 /* If X552 and internal link mode is XFI, then setup XFI internal link.
1936 */
1937 if (hw->mac.type == ixgbe_mac_X550EM_x &&
1938 !(hw->phy.nw_mng_if_sel & IXGBE_NW_MNG_IF_SEL_INT_PHY_MODE)) {
1939 status = ixgbe_setup_ixfi_x550em(hw, &force_speed);
1940
1941 if (status)
1942 return status;
1943 }
1944
1945 return hw->phy.ops.setup_link_speed(hw, speed, autoneg_wait);
1946 }
1947
1948 /** ixgbe_check_link_t_X550em - Determine link and speed status
1949 * @hw: pointer to hardware structure
1950 * @speed: pointer to link speed
1951 * @link_up: true when link is up
1952 * @link_up_wait_to_complete: bool used to wait for link up or not
1953 *
1954 * Check that both the MAC and X557 external PHY have link.
1955 **/
ixgbe_check_link_t_X550em(struct ixgbe_hw * hw,ixgbe_link_speed * speed,bool * link_up,bool link_up_wait_to_complete)1956 static s32 ixgbe_check_link_t_X550em(struct ixgbe_hw *hw,
1957 ixgbe_link_speed *speed,
1958 bool *link_up,
1959 bool link_up_wait_to_complete)
1960 {
1961 u32 status;
1962 u16 i, autoneg_status;
1963
1964 if (hw->mac.ops.get_media_type(hw) != ixgbe_media_type_copper)
1965 return IXGBE_ERR_CONFIG;
1966
1967 status = ixgbe_check_mac_link_generic(hw, speed, link_up,
1968 link_up_wait_to_complete);
1969
1970 /* If check link fails or MAC link is not up, then return */
1971 if (status || !(*link_up))
1972 return status;
1973
1974 /* MAC link is up, so check external PHY link.
1975 * Link status is latching low, and can only be used to detect link
1976 * drop, and not the current status of the link without performing
1977 * back-to-back reads.
1978 */
1979 for (i = 0; i < 2; i++) {
1980 status = hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN,
1981 &autoneg_status);
1982
1983 if (status)
1984 return status;
1985 }
1986
1987 /* If external PHY link is not up, then indicate link not up */
1988 if (!(autoneg_status & IXGBE_MDIO_AUTO_NEG_LINK_STATUS))
1989 *link_up = false;
1990
1991 return 0;
1992 }
1993
1994 /**
1995 * ixgbe_setup_sgmii - Set up link for sgmii
1996 * @hw: pointer to hardware structure
1997 * @speed: unused
1998 * @autoneg_wait_to_complete: unused
1999 */
2000 static s32
ixgbe_setup_sgmii(struct ixgbe_hw * hw,__always_unused ixgbe_link_speed speed,__always_unused bool autoneg_wait_to_complete)2001 ixgbe_setup_sgmii(struct ixgbe_hw *hw, __always_unused ixgbe_link_speed speed,
2002 __always_unused bool autoneg_wait_to_complete)
2003 {
2004 struct ixgbe_mac_info *mac = &hw->mac;
2005 u32 lval, sval, flx_val;
2006 s32 rc;
2007
2008 rc = mac->ops.read_iosf_sb_reg(hw,
2009 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2010 IXGBE_SB_IOSF_TARGET_KR_PHY, &lval);
2011 if (rc)
2012 return rc;
2013
2014 lval &= ~IXGBE_KRM_LINK_CTRL_1_TETH_AN_ENABLE;
2015 lval &= ~IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_MASK;
2016 lval |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_SGMII_EN;
2017 lval |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_CLAUSE_37_EN;
2018 lval |= IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_1G;
2019 rc = mac->ops.write_iosf_sb_reg(hw,
2020 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2021 IXGBE_SB_IOSF_TARGET_KR_PHY, lval);
2022 if (rc)
2023 return rc;
2024
2025 rc = mac->ops.read_iosf_sb_reg(hw,
2026 IXGBE_KRM_SGMII_CTRL(hw->bus.lan_id),
2027 IXGBE_SB_IOSF_TARGET_KR_PHY, &sval);
2028 if (rc)
2029 return rc;
2030
2031 sval |= IXGBE_KRM_SGMII_CTRL_MAC_TAR_FORCE_10_D;
2032 sval |= IXGBE_KRM_SGMII_CTRL_MAC_TAR_FORCE_100_D;
2033 rc = mac->ops.write_iosf_sb_reg(hw,
2034 IXGBE_KRM_SGMII_CTRL(hw->bus.lan_id),
2035 IXGBE_SB_IOSF_TARGET_KR_PHY, sval);
2036 if (rc)
2037 return rc;
2038
2039 rc = mac->ops.read_iosf_sb_reg(hw,
2040 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2041 IXGBE_SB_IOSF_TARGET_KR_PHY, &flx_val);
2042 if (rc)
2043 return rc;
2044
2045 rc = mac->ops.read_iosf_sb_reg(hw,
2046 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2047 IXGBE_SB_IOSF_TARGET_KR_PHY, &flx_val);
2048 if (rc)
2049 return rc;
2050
2051 flx_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_MASK;
2052 flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_1G;
2053 flx_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_AN_EN;
2054 flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SGMII_EN;
2055 flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_AN37_EN;
2056
2057 rc = mac->ops.write_iosf_sb_reg(hw,
2058 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2059 IXGBE_SB_IOSF_TARGET_KR_PHY, flx_val);
2060 if (rc)
2061 return rc;
2062
2063 rc = ixgbe_restart_an_internal_phy_x550em(hw);
2064 return rc;
2065 }
2066
2067 /**
2068 * ixgbe_setup_sgmii_fw - Set up link for sgmii with firmware-controlled PHYs
2069 * @hw: pointer to hardware structure
2070 * @speed: the link speed to force
2071 * @autoneg_wait: true when waiting for completion is needed
2072 */
ixgbe_setup_sgmii_fw(struct ixgbe_hw * hw,ixgbe_link_speed speed,bool autoneg_wait)2073 static s32 ixgbe_setup_sgmii_fw(struct ixgbe_hw *hw, ixgbe_link_speed speed,
2074 bool autoneg_wait)
2075 {
2076 struct ixgbe_mac_info *mac = &hw->mac;
2077 u32 lval, sval, flx_val;
2078 s32 rc;
2079
2080 rc = mac->ops.read_iosf_sb_reg(hw,
2081 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2082 IXGBE_SB_IOSF_TARGET_KR_PHY, &lval);
2083 if (rc)
2084 return rc;
2085
2086 lval &= ~IXGBE_KRM_LINK_CTRL_1_TETH_AN_ENABLE;
2087 lval &= ~IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_MASK;
2088 lval |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_SGMII_EN;
2089 lval |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_CLAUSE_37_EN;
2090 lval &= ~IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_1G;
2091 rc = mac->ops.write_iosf_sb_reg(hw,
2092 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2093 IXGBE_SB_IOSF_TARGET_KR_PHY, lval);
2094 if (rc)
2095 return rc;
2096
2097 rc = mac->ops.read_iosf_sb_reg(hw,
2098 IXGBE_KRM_SGMII_CTRL(hw->bus.lan_id),
2099 IXGBE_SB_IOSF_TARGET_KR_PHY, &sval);
2100 if (rc)
2101 return rc;
2102
2103 sval &= ~IXGBE_KRM_SGMII_CTRL_MAC_TAR_FORCE_10_D;
2104 sval &= ~IXGBE_KRM_SGMII_CTRL_MAC_TAR_FORCE_100_D;
2105 rc = mac->ops.write_iosf_sb_reg(hw,
2106 IXGBE_KRM_SGMII_CTRL(hw->bus.lan_id),
2107 IXGBE_SB_IOSF_TARGET_KR_PHY, sval);
2108 if (rc)
2109 return rc;
2110
2111 rc = mac->ops.write_iosf_sb_reg(hw,
2112 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2113 IXGBE_SB_IOSF_TARGET_KR_PHY, lval);
2114 if (rc)
2115 return rc;
2116
2117 rc = mac->ops.read_iosf_sb_reg(hw,
2118 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2119 IXGBE_SB_IOSF_TARGET_KR_PHY, &flx_val);
2120 if (rc)
2121 return rc;
2122
2123 flx_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_MASK;
2124 flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_AN;
2125 flx_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_AN_EN;
2126 flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SGMII_EN;
2127 flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_AN37_EN;
2128
2129 rc = mac->ops.write_iosf_sb_reg(hw,
2130 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2131 IXGBE_SB_IOSF_TARGET_KR_PHY, flx_val);
2132 if (rc)
2133 return rc;
2134
2135 ixgbe_restart_an_internal_phy_x550em(hw);
2136
2137 return hw->phy.ops.setup_link_speed(hw, speed, autoneg_wait);
2138 }
2139
2140 /**
2141 * ixgbe_fc_autoneg_sgmii_x550em_a - Enable flow control IEEE clause 37
2142 * @hw: pointer to hardware structure
2143 *
2144 * Enable flow control according to IEEE clause 37.
2145 */
ixgbe_fc_autoneg_sgmii_x550em_a(struct ixgbe_hw * hw)2146 static void ixgbe_fc_autoneg_sgmii_x550em_a(struct ixgbe_hw *hw)
2147 {
2148 s32 status = IXGBE_ERR_FC_NOT_NEGOTIATED;
2149 u32 info[FW_PHY_ACT_DATA_COUNT] = { 0 };
2150 ixgbe_link_speed speed;
2151 bool link_up;
2152
2153 /* AN should have completed when the cable was plugged in.
2154 * Look for reasons to bail out. Bail out if:
2155 * - FC autoneg is disabled, or if
2156 * - link is not up.
2157 */
2158 if (hw->fc.disable_fc_autoneg)
2159 goto out;
2160
2161 hw->mac.ops.check_link(hw, &speed, &link_up, false);
2162 if (!link_up)
2163 goto out;
2164
2165 /* Check if auto-negotiation has completed */
2166 status = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_GET_LINK_INFO, &info);
2167 if (status || !(info[0] & FW_PHY_ACT_GET_LINK_INFO_AN_COMPLETE)) {
2168 status = IXGBE_ERR_FC_NOT_NEGOTIATED;
2169 goto out;
2170 }
2171
2172 /* Negotiate the flow control */
2173 status = ixgbe_negotiate_fc(hw, info[0], info[0],
2174 FW_PHY_ACT_GET_LINK_INFO_FC_RX,
2175 FW_PHY_ACT_GET_LINK_INFO_FC_TX,
2176 FW_PHY_ACT_GET_LINK_INFO_LP_FC_RX,
2177 FW_PHY_ACT_GET_LINK_INFO_LP_FC_TX);
2178
2179 out:
2180 if (!status) {
2181 hw->fc.fc_was_autonegged = true;
2182 } else {
2183 hw->fc.fc_was_autonegged = false;
2184 hw->fc.current_mode = hw->fc.requested_mode;
2185 }
2186 }
2187
2188 /** ixgbe_init_mac_link_ops_X550em_a - Init mac link function pointers
2189 * @hw: pointer to hardware structure
2190 **/
ixgbe_init_mac_link_ops_X550em_a(struct ixgbe_hw * hw)2191 static void ixgbe_init_mac_link_ops_X550em_a(struct ixgbe_hw *hw)
2192 {
2193 struct ixgbe_mac_info *mac = &hw->mac;
2194
2195 switch (mac->ops.get_media_type(hw)) {
2196 case ixgbe_media_type_fiber:
2197 mac->ops.setup_fc = NULL;
2198 mac->ops.fc_autoneg = ixgbe_fc_autoneg_fiber_x550em_a;
2199 break;
2200 case ixgbe_media_type_copper:
2201 if (hw->device_id != IXGBE_DEV_ID_X550EM_A_1G_T &&
2202 hw->device_id != IXGBE_DEV_ID_X550EM_A_1G_T_L) {
2203 mac->ops.setup_link = ixgbe_setup_mac_link_t_X550em;
2204 break;
2205 }
2206 mac->ops.fc_autoneg = ixgbe_fc_autoneg_sgmii_x550em_a;
2207 mac->ops.setup_fc = ixgbe_fc_autoneg_fw;
2208 mac->ops.setup_link = ixgbe_setup_sgmii_fw;
2209 mac->ops.check_link = ixgbe_check_mac_link_generic;
2210 break;
2211 case ixgbe_media_type_backplane:
2212 mac->ops.fc_autoneg = ixgbe_fc_autoneg_backplane_x550em_a;
2213 mac->ops.setup_fc = ixgbe_setup_fc_backplane_x550em_a;
2214 break;
2215 default:
2216 break;
2217 }
2218 }
2219
2220 /** ixgbe_init_mac_link_ops_X550em - init mac link function pointers
2221 * @hw: pointer to hardware structure
2222 **/
ixgbe_init_mac_link_ops_X550em(struct ixgbe_hw * hw)2223 static void ixgbe_init_mac_link_ops_X550em(struct ixgbe_hw *hw)
2224 {
2225 struct ixgbe_mac_info *mac = &hw->mac;
2226
2227 mac->ops.setup_fc = ixgbe_setup_fc_x550em;
2228
2229 switch (mac->ops.get_media_type(hw)) {
2230 case ixgbe_media_type_fiber:
2231 /* CS4227 does not support autoneg, so disable the laser control
2232 * functions for SFP+ fiber
2233 */
2234 mac->ops.disable_tx_laser = NULL;
2235 mac->ops.enable_tx_laser = NULL;
2236 mac->ops.flap_tx_laser = NULL;
2237 mac->ops.setup_link = ixgbe_setup_mac_link_multispeed_fiber;
2238 switch (hw->device_id) {
2239 case IXGBE_DEV_ID_X550EM_A_SFP_N:
2240 mac->ops.setup_mac_link = ixgbe_setup_mac_link_sfp_n;
2241 break;
2242 case IXGBE_DEV_ID_X550EM_A_SFP:
2243 mac->ops.setup_mac_link =
2244 ixgbe_setup_mac_link_sfp_x550a;
2245 break;
2246 default:
2247 mac->ops.setup_mac_link =
2248 ixgbe_setup_mac_link_sfp_x550em;
2249 break;
2250 }
2251 mac->ops.set_rate_select_speed =
2252 ixgbe_set_soft_rate_select_speed;
2253 break;
2254 case ixgbe_media_type_copper:
2255 if (hw->device_id == IXGBE_DEV_ID_X550EM_X_1G_T)
2256 break;
2257 mac->ops.setup_link = ixgbe_setup_mac_link_t_X550em;
2258 mac->ops.setup_fc = ixgbe_setup_fc_generic;
2259 mac->ops.check_link = ixgbe_check_link_t_X550em;
2260 break;
2261 case ixgbe_media_type_backplane:
2262 if (hw->device_id == IXGBE_DEV_ID_X550EM_A_SGMII ||
2263 hw->device_id == IXGBE_DEV_ID_X550EM_A_SGMII_L)
2264 mac->ops.setup_link = ixgbe_setup_sgmii;
2265 break;
2266 default:
2267 break;
2268 }
2269
2270 /* Additional modification for X550em_a devices */
2271 if (hw->mac.type == ixgbe_mac_x550em_a)
2272 ixgbe_init_mac_link_ops_X550em_a(hw);
2273 }
2274
2275 /** ixgbe_setup_sfp_modules_X550em - Setup SFP module
2276 * @hw: pointer to hardware structure
2277 */
ixgbe_setup_sfp_modules_X550em(struct ixgbe_hw * hw)2278 static s32 ixgbe_setup_sfp_modules_X550em(struct ixgbe_hw *hw)
2279 {
2280 s32 status;
2281 bool linear;
2282
2283 /* Check if SFP module is supported */
2284 status = ixgbe_supported_sfp_modules_X550em(hw, &linear);
2285 if (status)
2286 return status;
2287
2288 ixgbe_init_mac_link_ops_X550em(hw);
2289 hw->phy.ops.reset = NULL;
2290
2291 return 0;
2292 }
2293
2294 /** ixgbe_get_link_capabilities_x550em - Determines link capabilities
2295 * @hw: pointer to hardware structure
2296 * @speed: pointer to link speed
2297 * @autoneg: true when autoneg or autotry is enabled
2298 **/
ixgbe_get_link_capabilities_X550em(struct ixgbe_hw * hw,ixgbe_link_speed * speed,bool * autoneg)2299 static s32 ixgbe_get_link_capabilities_X550em(struct ixgbe_hw *hw,
2300 ixgbe_link_speed *speed,
2301 bool *autoneg)
2302 {
2303 if (hw->phy.type == ixgbe_phy_fw) {
2304 *autoneg = true;
2305 *speed = hw->phy.speeds_supported;
2306 return 0;
2307 }
2308
2309 /* SFP */
2310 if (hw->phy.media_type == ixgbe_media_type_fiber) {
2311 /* CS4227 SFP must not enable auto-negotiation */
2312 *autoneg = false;
2313
2314 if (hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core0 ||
2315 hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core1 ||
2316 hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core0 ||
2317 hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core1) {
2318 *speed = IXGBE_LINK_SPEED_1GB_FULL;
2319 return 0;
2320 }
2321
2322 /* Link capabilities are based on SFP */
2323 if (hw->phy.multispeed_fiber)
2324 *speed = IXGBE_LINK_SPEED_10GB_FULL |
2325 IXGBE_LINK_SPEED_1GB_FULL;
2326 else
2327 *speed = IXGBE_LINK_SPEED_10GB_FULL;
2328 } else {
2329 switch (hw->phy.type) {
2330 case ixgbe_phy_x550em_kx4:
2331 *speed = IXGBE_LINK_SPEED_1GB_FULL |
2332 IXGBE_LINK_SPEED_2_5GB_FULL |
2333 IXGBE_LINK_SPEED_10GB_FULL;
2334 break;
2335 case ixgbe_phy_x550em_xfi:
2336 *speed = IXGBE_LINK_SPEED_1GB_FULL |
2337 IXGBE_LINK_SPEED_10GB_FULL;
2338 break;
2339 case ixgbe_phy_ext_1g_t:
2340 case ixgbe_phy_sgmii:
2341 *speed = IXGBE_LINK_SPEED_1GB_FULL;
2342 break;
2343 case ixgbe_phy_x550em_kr:
2344 if (hw->mac.type == ixgbe_mac_x550em_a) {
2345 /* check different backplane modes */
2346 if (hw->phy.nw_mng_if_sel &
2347 IXGBE_NW_MNG_IF_SEL_PHY_SPEED_2_5G) {
2348 *speed = IXGBE_LINK_SPEED_2_5GB_FULL;
2349 break;
2350 } else if (hw->device_id ==
2351 IXGBE_DEV_ID_X550EM_A_KR_L) {
2352 *speed = IXGBE_LINK_SPEED_1GB_FULL;
2353 break;
2354 }
2355 }
2356 fallthrough;
2357 default:
2358 *speed = IXGBE_LINK_SPEED_10GB_FULL |
2359 IXGBE_LINK_SPEED_1GB_FULL;
2360 break;
2361 }
2362 *autoneg = true;
2363 }
2364 return 0;
2365 }
2366
2367 /**
2368 * ixgbe_get_lasi_ext_t_x550em - Determime external Base T PHY interrupt cause
2369 * @hw: pointer to hardware structure
2370 * @lsc: pointer to boolean flag which indicates whether external Base T
2371 * PHY interrupt is lsc
2372 *
2373 * Determime if external Base T PHY interrupt cause is high temperature
2374 * failure alarm or link status change.
2375 *
2376 * Return IXGBE_ERR_OVERTEMP if interrupt is high temperature
2377 * failure alarm, else return PHY access status.
2378 **/
ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw * hw,bool * lsc)2379 static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
2380 {
2381 u32 status;
2382 u16 reg;
2383
2384 *lsc = false;
2385
2386 /* Vendor alarm triggered */
2387 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_CHIP_STD_INT_FLAG,
2388 MDIO_MMD_VEND1,
2389 ®);
2390
2391 if (status || !(reg & IXGBE_MDIO_GLOBAL_VEN_ALM_INT_EN))
2392 return status;
2393
2394 /* Vendor Auto-Neg alarm triggered or Global alarm 1 triggered */
2395 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_VEN_FLAG,
2396 MDIO_MMD_VEND1,
2397 ®);
2398
2399 if (status || !(reg & (IXGBE_MDIO_GLOBAL_AN_VEN_ALM_INT_EN |
2400 IXGBE_MDIO_GLOBAL_ALARM_1_INT)))
2401 return status;
2402
2403 /* Global alarm triggered */
2404 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_ALARM_1,
2405 MDIO_MMD_VEND1,
2406 ®);
2407
2408 if (status)
2409 return status;
2410
2411 /* If high temperature failure, then return over temp error and exit */
2412 if (reg & IXGBE_MDIO_GLOBAL_ALM_1_HI_TMP_FAIL) {
2413 /* power down the PHY in case the PHY FW didn't already */
2414 ixgbe_set_copper_phy_power(hw, false);
2415 return IXGBE_ERR_OVERTEMP;
2416 }
2417 if (reg & IXGBE_MDIO_GLOBAL_ALM_1_DEV_FAULT) {
2418 /* device fault alarm triggered */
2419 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_FAULT_MSG,
2420 MDIO_MMD_VEND1,
2421 ®);
2422 if (status)
2423 return status;
2424
2425 /* if device fault was due to high temp alarm handle and exit */
2426 if (reg == IXGBE_MDIO_GLOBAL_FAULT_MSG_HI_TMP) {
2427 /* power down the PHY in case the PHY FW didn't */
2428 ixgbe_set_copper_phy_power(hw, false);
2429 return IXGBE_ERR_OVERTEMP;
2430 }
2431 }
2432
2433 /* Vendor alarm 2 triggered */
2434 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_CHIP_STD_INT_FLAG,
2435 MDIO_MMD_AN, ®);
2436
2437 if (status || !(reg & IXGBE_MDIO_GLOBAL_STD_ALM2_INT))
2438 return status;
2439
2440 /* link connect/disconnect event occurred */
2441 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_VENDOR_TX_ALARM2,
2442 MDIO_MMD_AN, ®);
2443
2444 if (status)
2445 return status;
2446
2447 /* Indicate LSC */
2448 if (reg & IXGBE_MDIO_AUTO_NEG_VEN_LSC)
2449 *lsc = true;
2450
2451 return 0;
2452 }
2453
2454 /**
2455 * ixgbe_enable_lasi_ext_t_x550em - Enable external Base T PHY interrupts
2456 * @hw: pointer to hardware structure
2457 *
2458 * Enable link status change and temperature failure alarm for the external
2459 * Base T PHY
2460 *
2461 * Returns PHY access status
2462 **/
ixgbe_enable_lasi_ext_t_x550em(struct ixgbe_hw * hw)2463 static s32 ixgbe_enable_lasi_ext_t_x550em(struct ixgbe_hw *hw)
2464 {
2465 u32 status;
2466 u16 reg;
2467 bool lsc;
2468
2469 /* Clear interrupt flags */
2470 status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc);
2471
2472 /* Enable link status change alarm */
2473
2474 /* Enable the LASI interrupts on X552 devices to receive notifications
2475 * of the link configurations of the external PHY and correspondingly
2476 * support the configuration of the internal iXFI link, since iXFI does
2477 * not support auto-negotiation. This is not required for X553 devices
2478 * having KR support, which performs auto-negotiations and which is used
2479 * as the internal link to the external PHY. Hence adding a check here
2480 * to avoid enabling LASI interrupts for X553 devices.
2481 */
2482 if (hw->mac.type != ixgbe_mac_x550em_a) {
2483 status = hw->phy.ops.read_reg(hw,
2484 IXGBE_MDIO_PMA_TX_VEN_LASI_INT_MASK,
2485 MDIO_MMD_AN, ®);
2486 if (status)
2487 return status;
2488
2489 reg |= IXGBE_MDIO_PMA_TX_VEN_LASI_INT_EN;
2490
2491 status = hw->phy.ops.write_reg(hw,
2492 IXGBE_MDIO_PMA_TX_VEN_LASI_INT_MASK,
2493 MDIO_MMD_AN, reg);
2494 if (status)
2495 return status;
2496 }
2497
2498 /* Enable high temperature failure and global fault alarms */
2499 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_INT_MASK,
2500 MDIO_MMD_VEND1,
2501 ®);
2502 if (status)
2503 return status;
2504
2505 reg |= (IXGBE_MDIO_GLOBAL_INT_HI_TEMP_EN |
2506 IXGBE_MDIO_GLOBAL_INT_DEV_FAULT_EN);
2507
2508 status = hw->phy.ops.write_reg(hw, IXGBE_MDIO_GLOBAL_INT_MASK,
2509 MDIO_MMD_VEND1,
2510 reg);
2511 if (status)
2512 return status;
2513
2514 /* Enable vendor Auto-Neg alarm and Global Interrupt Mask 1 alarm */
2515 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_VEN_MASK,
2516 MDIO_MMD_VEND1,
2517 ®);
2518 if (status)
2519 return status;
2520
2521 reg |= (IXGBE_MDIO_GLOBAL_AN_VEN_ALM_INT_EN |
2522 IXGBE_MDIO_GLOBAL_ALARM_1_INT);
2523
2524 status = hw->phy.ops.write_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_VEN_MASK,
2525 MDIO_MMD_VEND1,
2526 reg);
2527 if (status)
2528 return status;
2529
2530 /* Enable chip-wide vendor alarm */
2531 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_STD_MASK,
2532 MDIO_MMD_VEND1,
2533 ®);
2534 if (status)
2535 return status;
2536
2537 reg |= IXGBE_MDIO_GLOBAL_VEN_ALM_INT_EN;
2538
2539 status = hw->phy.ops.write_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_STD_MASK,
2540 MDIO_MMD_VEND1,
2541 reg);
2542
2543 return status;
2544 }
2545
2546 /**
2547 * ixgbe_handle_lasi_ext_t_x550em - Handle external Base T PHY interrupt
2548 * @hw: pointer to hardware structure
2549 *
2550 * Handle external Base T PHY interrupt. If high temperature
2551 * failure alarm then return error, else if link status change
2552 * then setup internal/external PHY link
2553 *
2554 * Return IXGBE_ERR_OVERTEMP if interrupt is high temperature
2555 * failure alarm, else return PHY access status.
2556 **/
ixgbe_handle_lasi_ext_t_x550em(struct ixgbe_hw * hw)2557 static s32 ixgbe_handle_lasi_ext_t_x550em(struct ixgbe_hw *hw)
2558 {
2559 struct ixgbe_phy_info *phy = &hw->phy;
2560 bool lsc;
2561 u32 status;
2562
2563 status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc);
2564 if (status)
2565 return status;
2566
2567 if (lsc && phy->ops.setup_internal_link)
2568 return phy->ops.setup_internal_link(hw);
2569
2570 return 0;
2571 }
2572
2573 /**
2574 * ixgbe_setup_kr_speed_x550em - Configure the KR PHY for link speed.
2575 * @hw: pointer to hardware structure
2576 * @speed: link speed
2577 *
2578 * Configures the integrated KR PHY.
2579 **/
ixgbe_setup_kr_speed_x550em(struct ixgbe_hw * hw,ixgbe_link_speed speed)2580 static s32 ixgbe_setup_kr_speed_x550em(struct ixgbe_hw *hw,
2581 ixgbe_link_speed speed)
2582 {
2583 s32 status;
2584 u32 reg_val;
2585
2586 status = hw->mac.ops.read_iosf_sb_reg(hw,
2587 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2588 IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val);
2589 if (status)
2590 return status;
2591
2592 reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_ENABLE;
2593 reg_val &= ~(IXGBE_KRM_LINK_CTRL_1_TETH_AN_CAP_KR |
2594 IXGBE_KRM_LINK_CTRL_1_TETH_AN_CAP_KX);
2595
2596 /* Advertise 10G support. */
2597 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
2598 reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_CAP_KR;
2599
2600 /* Advertise 1G support. */
2601 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
2602 reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_CAP_KX;
2603
2604 status = hw->mac.ops.write_iosf_sb_reg(hw,
2605 IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
2606 IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
2607
2608 if (hw->mac.type == ixgbe_mac_x550em_a) {
2609 /* Set lane mode to KR auto negotiation */
2610 status = hw->mac.ops.read_iosf_sb_reg(hw,
2611 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2612 IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val);
2613
2614 if (status)
2615 return status;
2616
2617 reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_MASK;
2618 reg_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_AN;
2619 reg_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_AN_EN;
2620 reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_AN37_EN;
2621 reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SGMII_EN;
2622
2623 status = hw->mac.ops.write_iosf_sb_reg(hw,
2624 IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
2625 IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
2626 }
2627
2628 return ixgbe_restart_an_internal_phy_x550em(hw);
2629 }
2630
2631 /**
2632 * ixgbe_setup_kr_x550em - Configure the KR PHY
2633 * @hw: pointer to hardware structure
2634 **/
ixgbe_setup_kr_x550em(struct ixgbe_hw * hw)2635 static s32 ixgbe_setup_kr_x550em(struct ixgbe_hw *hw)
2636 {
2637 /* leave link alone for 2.5G */
2638 if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_2_5GB_FULL)
2639 return 0;
2640
2641 if (ixgbe_check_reset_blocked(hw))
2642 return 0;
2643
2644 return ixgbe_setup_kr_speed_x550em(hw, hw->phy.autoneg_advertised);
2645 }
2646
2647 /** ixgbe_ext_phy_t_x550em_get_link - Get ext phy link status
2648 * @hw: address of hardware structure
2649 * @link_up: address of boolean to indicate link status
2650 *
2651 * Returns error code if unable to get link status.
2652 **/
ixgbe_ext_phy_t_x550em_get_link(struct ixgbe_hw * hw,bool * link_up)2653 static s32 ixgbe_ext_phy_t_x550em_get_link(struct ixgbe_hw *hw, bool *link_up)
2654 {
2655 u32 ret;
2656 u16 autoneg_status;
2657
2658 *link_up = false;
2659
2660 /* read this twice back to back to indicate current status */
2661 ret = hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN,
2662 &autoneg_status);
2663 if (ret)
2664 return ret;
2665
2666 ret = hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN,
2667 &autoneg_status);
2668 if (ret)
2669 return ret;
2670
2671 *link_up = !!(autoneg_status & IXGBE_MDIO_AUTO_NEG_LINK_STATUS);
2672
2673 return 0;
2674 }
2675
2676 /** ixgbe_setup_internal_phy_t_x550em - Configure KR PHY to X557 link
2677 * @hw: point to hardware structure
2678 *
2679 * Configures the link between the integrated KR PHY and the external X557 PHY
2680 * The driver will call this function when it gets a link status change
2681 * interrupt from the X557 PHY. This function configures the link speed
2682 * between the PHYs to match the link speed of the BASE-T link.
2683 *
2684 * A return of a non-zero value indicates an error, and the base driver should
2685 * not report link up.
2686 **/
ixgbe_setup_internal_phy_t_x550em(struct ixgbe_hw * hw)2687 static s32 ixgbe_setup_internal_phy_t_x550em(struct ixgbe_hw *hw)
2688 {
2689 ixgbe_link_speed force_speed;
2690 bool link_up;
2691 u32 status;
2692 u16 speed;
2693
2694 if (hw->mac.ops.get_media_type(hw) != ixgbe_media_type_copper)
2695 return IXGBE_ERR_CONFIG;
2696
2697 if (!(hw->mac.type == ixgbe_mac_X550EM_x &&
2698 !(hw->phy.nw_mng_if_sel & IXGBE_NW_MNG_IF_SEL_INT_PHY_MODE))) {
2699 speed = IXGBE_LINK_SPEED_10GB_FULL |
2700 IXGBE_LINK_SPEED_1GB_FULL;
2701 return ixgbe_setup_kr_speed_x550em(hw, speed);
2702 }
2703
2704 /* If link is not up, then there is no setup necessary so return */
2705 status = ixgbe_ext_phy_t_x550em_get_link(hw, &link_up);
2706 if (status)
2707 return status;
2708
2709 if (!link_up)
2710 return 0;
2711
2712 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_VENDOR_STAT,
2713 MDIO_MMD_AN,
2714 &speed);
2715 if (status)
2716 return status;
2717
2718 /* If link is not still up, then no setup is necessary so return */
2719 status = ixgbe_ext_phy_t_x550em_get_link(hw, &link_up);
2720 if (status)
2721 return status;
2722
2723 if (!link_up)
2724 return 0;
2725
2726 /* clear everything but the speed and duplex bits */
2727 speed &= IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_MASK;
2728
2729 switch (speed) {
2730 case IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_10GB_FULL:
2731 force_speed = IXGBE_LINK_SPEED_10GB_FULL;
2732 break;
2733 case IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_1GB_FULL:
2734 force_speed = IXGBE_LINK_SPEED_1GB_FULL;
2735 break;
2736 default:
2737 /* Internal PHY does not support anything else */
2738 return IXGBE_ERR_INVALID_LINK_SETTINGS;
2739 }
2740
2741 return ixgbe_setup_ixfi_x550em(hw, &force_speed);
2742 }
2743
2744 /** ixgbe_reset_phy_t_X550em - Performs X557 PHY reset and enables LASI
2745 * @hw: pointer to hardware structure
2746 **/
ixgbe_reset_phy_t_X550em(struct ixgbe_hw * hw)2747 static s32 ixgbe_reset_phy_t_X550em(struct ixgbe_hw *hw)
2748 {
2749 s32 status;
2750
2751 status = ixgbe_reset_phy_generic(hw);
2752
2753 if (status)
2754 return status;
2755
2756 /* Configure Link Status Alarm and Temperature Threshold interrupts */
2757 return ixgbe_enable_lasi_ext_t_x550em(hw);
2758 }
2759
2760 /**
2761 * ixgbe_led_on_t_x550em - Turns on the software controllable LEDs.
2762 * @hw: pointer to hardware structure
2763 * @led_idx: led number to turn on
2764 **/
ixgbe_led_on_t_x550em(struct ixgbe_hw * hw,u32 led_idx)2765 static s32 ixgbe_led_on_t_x550em(struct ixgbe_hw *hw, u32 led_idx)
2766 {
2767 u16 phy_data;
2768
2769 if (led_idx >= IXGBE_X557_MAX_LED_INDEX)
2770 return IXGBE_ERR_PARAM;
2771
2772 /* To turn on the LED, set mode to ON. */
2773 hw->phy.ops.read_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx,
2774 MDIO_MMD_VEND1, &phy_data);
2775 phy_data |= IXGBE_X557_LED_MANUAL_SET_MASK;
2776 hw->phy.ops.write_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx,
2777 MDIO_MMD_VEND1, phy_data);
2778
2779 return 0;
2780 }
2781
2782 /**
2783 * ixgbe_led_off_t_x550em - Turns off the software controllable LEDs.
2784 * @hw: pointer to hardware structure
2785 * @led_idx: led number to turn off
2786 **/
ixgbe_led_off_t_x550em(struct ixgbe_hw * hw,u32 led_idx)2787 static s32 ixgbe_led_off_t_x550em(struct ixgbe_hw *hw, u32 led_idx)
2788 {
2789 u16 phy_data;
2790
2791 if (led_idx >= IXGBE_X557_MAX_LED_INDEX)
2792 return IXGBE_ERR_PARAM;
2793
2794 /* To turn on the LED, set mode to ON. */
2795 hw->phy.ops.read_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx,
2796 MDIO_MMD_VEND1, &phy_data);
2797 phy_data &= ~IXGBE_X557_LED_MANUAL_SET_MASK;
2798 hw->phy.ops.write_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx,
2799 MDIO_MMD_VEND1, phy_data);
2800
2801 return 0;
2802 }
2803
2804 /**
2805 * ixgbe_set_fw_drv_ver_x550 - Sends driver version to firmware
2806 * @hw: pointer to the HW structure
2807 * @maj: driver version major number
2808 * @min: driver version minor number
2809 * @build: driver version build number
2810 * @sub: driver version sub build number
2811 * @len: length of driver_ver string
2812 * @driver_ver: driver string
2813 *
2814 * Sends driver version number to firmware through the manageability
2815 * block. On success return 0
2816 * else returns IXGBE_ERR_SWFW_SYNC when encountering an error acquiring
2817 * semaphore or IXGBE_ERR_HOST_INTERFACE_COMMAND when command fails.
2818 **/
ixgbe_set_fw_drv_ver_x550(struct ixgbe_hw * hw,u8 maj,u8 min,u8 build,u8 sub,u16 len,const char * driver_ver)2819 static s32 ixgbe_set_fw_drv_ver_x550(struct ixgbe_hw *hw, u8 maj, u8 min,
2820 u8 build, u8 sub, u16 len,
2821 const char *driver_ver)
2822 {
2823 struct ixgbe_hic_drv_info2 fw_cmd;
2824 s32 ret_val;
2825 int i;
2826
2827 if (!len || !driver_ver || (len > sizeof(fw_cmd.driver_string)))
2828 return IXGBE_ERR_INVALID_ARGUMENT;
2829
2830 fw_cmd.hdr.cmd = FW_CEM_CMD_DRIVER_INFO;
2831 fw_cmd.hdr.buf_len = FW_CEM_CMD_DRIVER_INFO_LEN + len;
2832 fw_cmd.hdr.cmd_or_resp.cmd_resv = FW_CEM_CMD_RESERVED;
2833 fw_cmd.port_num = (u8)hw->bus.func;
2834 fw_cmd.ver_maj = maj;
2835 fw_cmd.ver_min = min;
2836 fw_cmd.ver_build = build;
2837 fw_cmd.ver_sub = sub;
2838 fw_cmd.hdr.checksum = 0;
2839 memcpy(fw_cmd.driver_string, driver_ver, len);
2840 fw_cmd.hdr.checksum = ixgbe_calculate_checksum((u8 *)&fw_cmd,
2841 (FW_CEM_HDR_LEN + fw_cmd.hdr.buf_len));
2842
2843 for (i = 0; i <= FW_CEM_MAX_RETRIES; i++) {
2844 ret_val = ixgbe_host_interface_command(hw, (u32 *)&fw_cmd,
2845 sizeof(fw_cmd),
2846 IXGBE_HI_COMMAND_TIMEOUT,
2847 true);
2848 if (ret_val)
2849 continue;
2850
2851 if (fw_cmd.hdr.cmd_or_resp.ret_status !=
2852 FW_CEM_RESP_STATUS_SUCCESS)
2853 return IXGBE_ERR_HOST_INTERFACE_COMMAND;
2854 return 0;
2855 }
2856
2857 return ret_val;
2858 }
2859
2860 /** ixgbe_get_lcd_x550em - Determine lowest common denominator
2861 * @hw: pointer to hardware structure
2862 * @lcd_speed: pointer to lowest common link speed
2863 *
2864 * Determine lowest common link speed with link partner.
2865 **/
ixgbe_get_lcd_t_x550em(struct ixgbe_hw * hw,ixgbe_link_speed * lcd_speed)2866 static s32 ixgbe_get_lcd_t_x550em(struct ixgbe_hw *hw,
2867 ixgbe_link_speed *lcd_speed)
2868 {
2869 u16 an_lp_status;
2870 s32 status;
2871 u16 word = hw->eeprom.ctrl_word_3;
2872
2873 *lcd_speed = IXGBE_LINK_SPEED_UNKNOWN;
2874
2875 status = hw->phy.ops.read_reg(hw, IXGBE_AUTO_NEG_LP_STATUS,
2876 MDIO_MMD_AN,
2877 &an_lp_status);
2878 if (status)
2879 return status;
2880
2881 /* If link partner advertised 1G, return 1G */
2882 if (an_lp_status & IXGBE_AUTO_NEG_LP_1000BASE_CAP) {
2883 *lcd_speed = IXGBE_LINK_SPEED_1GB_FULL;
2884 return status;
2885 }
2886
2887 /* If 10G disabled for LPLU via NVM D10GMP, then return no valid LCD */
2888 if ((hw->bus.lan_id && (word & NVM_INIT_CTRL_3_D10GMP_PORT1)) ||
2889 (word & NVM_INIT_CTRL_3_D10GMP_PORT0))
2890 return status;
2891
2892 /* Link partner not capable of lower speeds, return 10G */
2893 *lcd_speed = IXGBE_LINK_SPEED_10GB_FULL;
2894 return status;
2895 }
2896
2897 /**
2898 * ixgbe_setup_fc_x550em - Set up flow control
2899 * @hw: pointer to hardware structure
2900 */
ixgbe_setup_fc_x550em(struct ixgbe_hw * hw)2901 static s32 ixgbe_setup_fc_x550em(struct ixgbe_hw *hw)
2902 {
2903 bool pause, asm_dir;
2904 u32 reg_val;
2905 s32 rc = 0;
2906
2907 /* Validate the requested mode */
2908 if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
2909 hw_err(hw, "ixgbe_fc_rx_pause not valid in strict IEEE mode\n");
2910 return IXGBE_ERR_INVALID_LINK_SETTINGS;
2911 }
2912
2913 /* 10gig parts do not have a word in the EEPROM to determine the
2914 * default flow control setting, so we explicitly set it to full.
2915 */
2916 if (hw->fc.requested_mode == ixgbe_fc_default)
2917 hw->fc.requested_mode = ixgbe_fc_full;
2918
2919 /* Determine PAUSE and ASM_DIR bits. */
2920 switch (hw->fc.requested_mode) {
2921 case ixgbe_fc_none:
2922 pause = false;
2923 asm_dir = false;
2924 break;
2925 case ixgbe_fc_tx_pause:
2926 pause = false;
2927 asm_dir = true;
2928 break;
2929 case ixgbe_fc_rx_pause:
2930 /* Rx Flow control is enabled and Tx Flow control is
2931 * disabled by software override. Since there really
2932 * isn't a way to advertise that we are capable of RX
2933 * Pause ONLY, we will advertise that we support both
2934 * symmetric and asymmetric Rx PAUSE, as such we fall
2935 * through to the fc_full statement. Later, we will
2936 * disable the adapter's ability to send PAUSE frames.
2937 */
2938 fallthrough;
2939 case ixgbe_fc_full:
2940 pause = true;
2941 asm_dir = true;
2942 break;
2943 default:
2944 hw_err(hw, "Flow control param set incorrectly\n");
2945 return IXGBE_ERR_CONFIG;
2946 }
2947
2948 switch (hw->device_id) {
2949 case IXGBE_DEV_ID_X550EM_X_KR:
2950 case IXGBE_DEV_ID_X550EM_A_KR:
2951 case IXGBE_DEV_ID_X550EM_A_KR_L:
2952 rc = hw->mac.ops.read_iosf_sb_reg(hw,
2953 IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
2954 IXGBE_SB_IOSF_TARGET_KR_PHY,
2955 ®_val);
2956 if (rc)
2957 return rc;
2958
2959 reg_val &= ~(IXGBE_KRM_AN_CNTL_1_SYM_PAUSE |
2960 IXGBE_KRM_AN_CNTL_1_ASM_PAUSE);
2961 if (pause)
2962 reg_val |= IXGBE_KRM_AN_CNTL_1_SYM_PAUSE;
2963 if (asm_dir)
2964 reg_val |= IXGBE_KRM_AN_CNTL_1_ASM_PAUSE;
2965 rc = hw->mac.ops.write_iosf_sb_reg(hw,
2966 IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
2967 IXGBE_SB_IOSF_TARGET_KR_PHY,
2968 reg_val);
2969
2970 /* This device does not fully support AN. */
2971 hw->fc.disable_fc_autoneg = true;
2972 break;
2973 case IXGBE_DEV_ID_X550EM_X_XFI:
2974 hw->fc.disable_fc_autoneg = true;
2975 break;
2976 default:
2977 break;
2978 }
2979 return rc;
2980 }
2981
2982 /**
2983 * ixgbe_fc_autoneg_backplane_x550em_a - Enable flow control IEEE clause 37
2984 * @hw: pointer to hardware structure
2985 **/
ixgbe_fc_autoneg_backplane_x550em_a(struct ixgbe_hw * hw)2986 static void ixgbe_fc_autoneg_backplane_x550em_a(struct ixgbe_hw *hw)
2987 {
2988 u32 link_s1, lp_an_page_low, an_cntl_1;
2989 s32 status = IXGBE_ERR_FC_NOT_NEGOTIATED;
2990 ixgbe_link_speed speed;
2991 bool link_up;
2992
2993 /* AN should have completed when the cable was plugged in.
2994 * Look for reasons to bail out. Bail out if:
2995 * - FC autoneg is disabled, or if
2996 * - link is not up.
2997 */
2998 if (hw->fc.disable_fc_autoneg) {
2999 hw_err(hw, "Flow control autoneg is disabled");
3000 goto out;
3001 }
3002
3003 hw->mac.ops.check_link(hw, &speed, &link_up, false);
3004 if (!link_up) {
3005 hw_err(hw, "The link is down");
3006 goto out;
3007 }
3008
3009 /* Check at auto-negotiation has completed */
3010 status = hw->mac.ops.read_iosf_sb_reg(hw,
3011 IXGBE_KRM_LINK_S1(hw->bus.lan_id),
3012 IXGBE_SB_IOSF_TARGET_KR_PHY, &link_s1);
3013
3014 if (status || (link_s1 & IXGBE_KRM_LINK_S1_MAC_AN_COMPLETE) == 0) {
3015 hw_dbg(hw, "Auto-Negotiation did not complete\n");
3016 status = IXGBE_ERR_FC_NOT_NEGOTIATED;
3017 goto out;
3018 }
3019
3020 /* Read the 10g AN autoc and LP ability registers and resolve
3021 * local flow control settings accordingly
3022 */
3023 status = hw->mac.ops.read_iosf_sb_reg(hw,
3024 IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
3025 IXGBE_SB_IOSF_TARGET_KR_PHY, &an_cntl_1);
3026
3027 if (status) {
3028 hw_dbg(hw, "Auto-Negotiation did not complete\n");
3029 goto out;
3030 }
3031
3032 status = hw->mac.ops.read_iosf_sb_reg(hw,
3033 IXGBE_KRM_LP_BASE_PAGE_HIGH(hw->bus.lan_id),
3034 IXGBE_SB_IOSF_TARGET_KR_PHY, &lp_an_page_low);
3035
3036 if (status) {
3037 hw_dbg(hw, "Auto-Negotiation did not complete\n");
3038 goto out;
3039 }
3040
3041 status = ixgbe_negotiate_fc(hw, an_cntl_1, lp_an_page_low,
3042 IXGBE_KRM_AN_CNTL_1_SYM_PAUSE,
3043 IXGBE_KRM_AN_CNTL_1_ASM_PAUSE,
3044 IXGBE_KRM_LP_BASE_PAGE_HIGH_SYM_PAUSE,
3045 IXGBE_KRM_LP_BASE_PAGE_HIGH_ASM_PAUSE);
3046
3047 out:
3048 if (!status) {
3049 hw->fc.fc_was_autonegged = true;
3050 } else {
3051 hw->fc.fc_was_autonegged = false;
3052 hw->fc.current_mode = hw->fc.requested_mode;
3053 }
3054 }
3055
3056 /**
3057 * ixgbe_fc_autoneg_fiber_x550em_a - passthrough FC settings
3058 * @hw: pointer to hardware structure
3059 **/
ixgbe_fc_autoneg_fiber_x550em_a(struct ixgbe_hw * hw)3060 static void ixgbe_fc_autoneg_fiber_x550em_a(struct ixgbe_hw *hw)
3061 {
3062 hw->fc.fc_was_autonegged = false;
3063 hw->fc.current_mode = hw->fc.requested_mode;
3064 }
3065
3066 /** ixgbe_enter_lplu_x550em - Transition to low power states
3067 * @hw: pointer to hardware structure
3068 *
3069 * Configures Low Power Link Up on transition to low power states
3070 * (from D0 to non-D0). Link is required to enter LPLU so avoid resetting
3071 * the X557 PHY immediately prior to entering LPLU.
3072 **/
ixgbe_enter_lplu_t_x550em(struct ixgbe_hw * hw)3073 static s32 ixgbe_enter_lplu_t_x550em(struct ixgbe_hw *hw)
3074 {
3075 u16 an_10g_cntl_reg, autoneg_reg, speed;
3076 s32 status;
3077 ixgbe_link_speed lcd_speed;
3078 u32 save_autoneg;
3079 bool link_up;
3080
3081 /* If blocked by MNG FW, then don't restart AN */
3082 if (ixgbe_check_reset_blocked(hw))
3083 return 0;
3084
3085 status = ixgbe_ext_phy_t_x550em_get_link(hw, &link_up);
3086 if (status)
3087 return status;
3088
3089 status = hw->eeprom.ops.read(hw, NVM_INIT_CTRL_3,
3090 &hw->eeprom.ctrl_word_3);
3091 if (status)
3092 return status;
3093
3094 /* If link is down, LPLU disabled in NVM, WoL disabled, or
3095 * manageability disabled, then force link down by entering
3096 * low power mode.
3097 */
3098 if (!link_up || !(hw->eeprom.ctrl_word_3 & NVM_INIT_CTRL_3_LPLU) ||
3099 !(hw->wol_enabled || ixgbe_mng_present(hw)))
3100 return ixgbe_set_copper_phy_power(hw, false);
3101
3102 /* Determine LCD */
3103 status = ixgbe_get_lcd_t_x550em(hw, &lcd_speed);
3104 if (status)
3105 return status;
3106
3107 /* If no valid LCD link speed, then force link down and exit. */
3108 if (lcd_speed == IXGBE_LINK_SPEED_UNKNOWN)
3109 return ixgbe_set_copper_phy_power(hw, false);
3110
3111 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_VENDOR_STAT,
3112 MDIO_MMD_AN,
3113 &speed);
3114 if (status)
3115 return status;
3116
3117 /* If no link now, speed is invalid so take link down */
3118 status = ixgbe_ext_phy_t_x550em_get_link(hw, &link_up);
3119 if (status)
3120 return ixgbe_set_copper_phy_power(hw, false);
3121
3122 /* clear everything but the speed bits */
3123 speed &= IXGBE_MDIO_AUTO_NEG_VEN_STAT_SPEED_MASK;
3124
3125 /* If current speed is already LCD, then exit. */
3126 if (((speed == IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_1GB) &&
3127 (lcd_speed == IXGBE_LINK_SPEED_1GB_FULL)) ||
3128 ((speed == IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_10GB) &&
3129 (lcd_speed == IXGBE_LINK_SPEED_10GB_FULL)))
3130 return status;
3131
3132 /* Clear AN completed indication */
3133 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_VENDOR_TX_ALARM,
3134 MDIO_MMD_AN,
3135 &autoneg_reg);
3136 if (status)
3137 return status;
3138
3139 status = hw->phy.ops.read_reg(hw, MDIO_AN_10GBT_CTRL,
3140 MDIO_MMD_AN,
3141 &an_10g_cntl_reg);
3142 if (status)
3143 return status;
3144
3145 status = hw->phy.ops.read_reg(hw,
3146 IXGBE_MII_AUTONEG_VENDOR_PROVISION_1_REG,
3147 MDIO_MMD_AN,
3148 &autoneg_reg);
3149 if (status)
3150 return status;
3151
3152 save_autoneg = hw->phy.autoneg_advertised;
3153
3154 /* Setup link at least common link speed */
3155 status = hw->mac.ops.setup_link(hw, lcd_speed, false);
3156
3157 /* restore autoneg from before setting lplu speed */
3158 hw->phy.autoneg_advertised = save_autoneg;
3159
3160 return status;
3161 }
3162
3163 /**
3164 * ixgbe_reset_phy_fw - Reset firmware-controlled PHYs
3165 * @hw: pointer to hardware structure
3166 */
ixgbe_reset_phy_fw(struct ixgbe_hw * hw)3167 static s32 ixgbe_reset_phy_fw(struct ixgbe_hw *hw)
3168 {
3169 u32 store[FW_PHY_ACT_DATA_COUNT] = { 0 };
3170 s32 rc;
3171
3172 if (hw->phy.reset_disable || ixgbe_check_reset_blocked(hw))
3173 return 0;
3174
3175 rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_PHY_SW_RESET, &store);
3176 if (rc)
3177 return rc;
3178 memset(store, 0, sizeof(store));
3179
3180 rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_INIT_PHY, &store);
3181 if (rc)
3182 return rc;
3183
3184 return ixgbe_setup_fw_link(hw);
3185 }
3186
3187 /**
3188 * ixgbe_check_overtemp_fw - Check firmware-controlled PHYs for overtemp
3189 * @hw: pointer to hardware structure
3190 */
ixgbe_check_overtemp_fw(struct ixgbe_hw * hw)3191 static s32 ixgbe_check_overtemp_fw(struct ixgbe_hw *hw)
3192 {
3193 u32 store[FW_PHY_ACT_DATA_COUNT] = { 0 };
3194 s32 rc;
3195
3196 rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_GET_LINK_INFO, &store);
3197 if (rc)
3198 return rc;
3199
3200 if (store[0] & FW_PHY_ACT_GET_LINK_INFO_TEMP) {
3201 ixgbe_shutdown_fw_phy(hw);
3202 return IXGBE_ERR_OVERTEMP;
3203 }
3204 return 0;
3205 }
3206
3207 /**
3208 * ixgbe_read_mng_if_sel_x550em - Read NW_MNG_IF_SEL register
3209 * @hw: pointer to hardware structure
3210 *
3211 * Read NW_MNG_IF_SEL register and save field values.
3212 */
ixgbe_read_mng_if_sel_x550em(struct ixgbe_hw * hw)3213 static void ixgbe_read_mng_if_sel_x550em(struct ixgbe_hw *hw)
3214 {
3215 /* Save NW management interface connected on board. This is used
3216 * to determine internal PHY mode.
3217 */
3218 hw->phy.nw_mng_if_sel = IXGBE_READ_REG(hw, IXGBE_NW_MNG_IF_SEL);
3219
3220 /* If X552 (X550EM_a) and MDIO is connected to external PHY, then set
3221 * PHY address. This register field was has only been used for X552.
3222 */
3223 if (hw->mac.type == ixgbe_mac_x550em_a &&
3224 hw->phy.nw_mng_if_sel & IXGBE_NW_MNG_IF_SEL_MDIO_ACT) {
3225 hw->phy.mdio.prtad = (hw->phy.nw_mng_if_sel &
3226 IXGBE_NW_MNG_IF_SEL_MDIO_PHY_ADD) >>
3227 IXGBE_NW_MNG_IF_SEL_MDIO_PHY_ADD_SHIFT;
3228 }
3229 }
3230
3231 /** ixgbe_init_phy_ops_X550em - PHY/SFP specific init
3232 * @hw: pointer to hardware structure
3233 *
3234 * Initialize any function pointers that were not able to be
3235 * set during init_shared_code because the PHY/SFP type was
3236 * not known. Perform the SFP init if necessary.
3237 **/
ixgbe_init_phy_ops_X550em(struct ixgbe_hw * hw)3238 static s32 ixgbe_init_phy_ops_X550em(struct ixgbe_hw *hw)
3239 {
3240 struct ixgbe_phy_info *phy = &hw->phy;
3241 s32 ret_val;
3242
3243 hw->mac.ops.set_lan_id(hw);
3244
3245 ixgbe_read_mng_if_sel_x550em(hw);
3246
3247 if (hw->mac.ops.get_media_type(hw) == ixgbe_media_type_fiber) {
3248 phy->phy_semaphore_mask = IXGBE_GSSR_SHARED_I2C_SM;
3249 ixgbe_setup_mux_ctl(hw);
3250 }
3251
3252 /* Identify the PHY or SFP module */
3253 ret_val = phy->ops.identify(hw);
3254 if (ret_val == IXGBE_ERR_SFP_NOT_SUPPORTED ||
3255 ret_val == IXGBE_ERR_PHY_ADDR_INVALID)
3256 return ret_val;
3257
3258 /* Setup function pointers based on detected hardware */
3259 ixgbe_init_mac_link_ops_X550em(hw);
3260 if (phy->sfp_type != ixgbe_sfp_type_unknown)
3261 phy->ops.reset = NULL;
3262
3263 /* Set functions pointers based on phy type */
3264 switch (hw->phy.type) {
3265 case ixgbe_phy_x550em_kx4:
3266 phy->ops.setup_link = NULL;
3267 phy->ops.read_reg = ixgbe_read_phy_reg_x550em;
3268 phy->ops.write_reg = ixgbe_write_phy_reg_x550em;
3269 break;
3270 case ixgbe_phy_x550em_kr:
3271 phy->ops.setup_link = ixgbe_setup_kr_x550em;
3272 phy->ops.read_reg = ixgbe_read_phy_reg_x550em;
3273 phy->ops.write_reg = ixgbe_write_phy_reg_x550em;
3274 break;
3275 case ixgbe_phy_x550em_xfi:
3276 /* link is managed by HW */
3277 phy->ops.setup_link = NULL;
3278 phy->ops.read_reg = ixgbe_read_phy_reg_x550em;
3279 phy->ops.write_reg = ixgbe_write_phy_reg_x550em;
3280 break;
3281 case ixgbe_phy_x550em_ext_t:
3282 /* Save NW management interface connected on board. This is used
3283 * to determine internal PHY mode
3284 */
3285 phy->nw_mng_if_sel = IXGBE_READ_REG(hw, IXGBE_NW_MNG_IF_SEL);
3286
3287 /* If internal link mode is XFI, then setup iXFI internal link,
3288 * else setup KR now.
3289 */
3290 phy->ops.setup_internal_link =
3291 ixgbe_setup_internal_phy_t_x550em;
3292
3293 /* setup SW LPLU only for first revision */
3294 if (hw->mac.type == ixgbe_mac_X550EM_x &&
3295 !(IXGBE_READ_REG(hw, IXGBE_FUSES0_GROUP(0)) &
3296 IXGBE_FUSES0_REV_MASK))
3297 phy->ops.enter_lplu = ixgbe_enter_lplu_t_x550em;
3298
3299 phy->ops.handle_lasi = ixgbe_handle_lasi_ext_t_x550em;
3300 phy->ops.reset = ixgbe_reset_phy_t_X550em;
3301 break;
3302 case ixgbe_phy_sgmii:
3303 phy->ops.setup_link = NULL;
3304 break;
3305 case ixgbe_phy_fw:
3306 phy->ops.setup_link = ixgbe_setup_fw_link;
3307 phy->ops.reset = ixgbe_reset_phy_fw;
3308 break;
3309 case ixgbe_phy_ext_1g_t:
3310 phy->ops.setup_link = NULL;
3311 phy->ops.read_reg = NULL;
3312 phy->ops.write_reg = NULL;
3313 phy->ops.reset = NULL;
3314 break;
3315 default:
3316 break;
3317 }
3318
3319 return ret_val;
3320 }
3321
3322 /** ixgbe_get_media_type_X550em - Get media type
3323 * @hw: pointer to hardware structure
3324 *
3325 * Returns the media type (fiber, copper, backplane)
3326 *
3327 */
ixgbe_get_media_type_X550em(struct ixgbe_hw * hw)3328 static enum ixgbe_media_type ixgbe_get_media_type_X550em(struct ixgbe_hw *hw)
3329 {
3330 enum ixgbe_media_type media_type;
3331
3332 /* Detect if there is a copper PHY attached. */
3333 switch (hw->device_id) {
3334 case IXGBE_DEV_ID_X550EM_A_SGMII:
3335 case IXGBE_DEV_ID_X550EM_A_SGMII_L:
3336 hw->phy.type = ixgbe_phy_sgmii;
3337 fallthrough;
3338 case IXGBE_DEV_ID_X550EM_X_KR:
3339 case IXGBE_DEV_ID_X550EM_X_KX4:
3340 case IXGBE_DEV_ID_X550EM_X_XFI:
3341 case IXGBE_DEV_ID_X550EM_A_KR:
3342 case IXGBE_DEV_ID_X550EM_A_KR_L:
3343 media_type = ixgbe_media_type_backplane;
3344 break;
3345 case IXGBE_DEV_ID_X550EM_X_SFP:
3346 case IXGBE_DEV_ID_X550EM_A_SFP:
3347 case IXGBE_DEV_ID_X550EM_A_SFP_N:
3348 media_type = ixgbe_media_type_fiber;
3349 break;
3350 case IXGBE_DEV_ID_X550EM_X_1G_T:
3351 case IXGBE_DEV_ID_X550EM_X_10G_T:
3352 case IXGBE_DEV_ID_X550EM_A_10G_T:
3353 case IXGBE_DEV_ID_X550EM_A_1G_T:
3354 case IXGBE_DEV_ID_X550EM_A_1G_T_L:
3355 media_type = ixgbe_media_type_copper;
3356 break;
3357 default:
3358 media_type = ixgbe_media_type_unknown;
3359 break;
3360 }
3361 return media_type;
3362 }
3363
3364 /** ixgbe_init_ext_t_x550em - Start (unstall) the external Base T PHY.
3365 ** @hw: pointer to hardware structure
3366 **/
ixgbe_init_ext_t_x550em(struct ixgbe_hw * hw)3367 static s32 ixgbe_init_ext_t_x550em(struct ixgbe_hw *hw)
3368 {
3369 s32 status;
3370 u16 reg;
3371
3372 status = hw->phy.ops.read_reg(hw,
3373 IXGBE_MDIO_TX_VENDOR_ALARMS_3,
3374 MDIO_MMD_PMAPMD,
3375 ®);
3376 if (status)
3377 return status;
3378
3379 /* If PHY FW reset completed bit is set then this is the first
3380 * SW instance after a power on so the PHY FW must be un-stalled.
3381 */
3382 if (reg & IXGBE_MDIO_TX_VENDOR_ALARMS_3_RST_MASK) {
3383 status = hw->phy.ops.read_reg(hw,
3384 IXGBE_MDIO_GLOBAL_RES_PR_10,
3385 MDIO_MMD_VEND1,
3386 ®);
3387 if (status)
3388 return status;
3389
3390 reg &= ~IXGBE_MDIO_POWER_UP_STALL;
3391
3392 status = hw->phy.ops.write_reg(hw,
3393 IXGBE_MDIO_GLOBAL_RES_PR_10,
3394 MDIO_MMD_VEND1,
3395 reg);
3396 if (status)
3397 return status;
3398 }
3399
3400 return status;
3401 }
3402
3403 /**
3404 * ixgbe_set_mdio_speed - Set MDIO clock speed
3405 * @hw: pointer to hardware structure
3406 */
ixgbe_set_mdio_speed(struct ixgbe_hw * hw)3407 static void ixgbe_set_mdio_speed(struct ixgbe_hw *hw)
3408 {
3409 u32 hlreg0;
3410
3411 switch (hw->device_id) {
3412 case IXGBE_DEV_ID_X550EM_X_10G_T:
3413 case IXGBE_DEV_ID_X550EM_A_SGMII:
3414 case IXGBE_DEV_ID_X550EM_A_SGMII_L:
3415 case IXGBE_DEV_ID_X550EM_A_10G_T:
3416 case IXGBE_DEV_ID_X550EM_A_SFP:
3417 /* Config MDIO clock speed before the first MDIO PHY access */
3418 hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0);
3419 hlreg0 &= ~IXGBE_HLREG0_MDCSPD;
3420 IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0);
3421 break;
3422 case IXGBE_DEV_ID_X550EM_A_1G_T:
3423 case IXGBE_DEV_ID_X550EM_A_1G_T_L:
3424 /* Select fast MDIO clock speed for these devices */
3425 hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0);
3426 hlreg0 |= IXGBE_HLREG0_MDCSPD;
3427 IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0);
3428 break;
3429 default:
3430 break;
3431 }
3432 }
3433
3434 /** ixgbe_reset_hw_X550em - Perform hardware reset
3435 ** @hw: pointer to hardware structure
3436 **
3437 ** Resets the hardware by resetting the transmit and receive units, masks
3438 ** and clears all interrupts, perform a PHY reset, and perform a link (MAC)
3439 ** reset.
3440 **/
ixgbe_reset_hw_X550em(struct ixgbe_hw * hw)3441 static s32 ixgbe_reset_hw_X550em(struct ixgbe_hw *hw)
3442 {
3443 ixgbe_link_speed link_speed;
3444 s32 status;
3445 u32 ctrl = 0;
3446 u32 i;
3447 bool link_up = false;
3448 u32 swfw_mask = hw->phy.phy_semaphore_mask;
3449
3450 /* Call adapter stop to disable Tx/Rx and clear interrupts */
3451 status = hw->mac.ops.stop_adapter(hw);
3452 if (status)
3453 return status;
3454
3455 /* flush pending Tx transactions */
3456 ixgbe_clear_tx_pending(hw);
3457
3458 /* set MDIO speed before talking to the PHY in case it's the 1st time */
3459 ixgbe_set_mdio_speed(hw);
3460
3461 /* PHY ops must be identified and initialized prior to reset */
3462 status = hw->phy.ops.init(hw);
3463 if (status == IXGBE_ERR_SFP_NOT_SUPPORTED ||
3464 status == IXGBE_ERR_PHY_ADDR_INVALID)
3465 return status;
3466
3467 /* start the external PHY */
3468 if (hw->phy.type == ixgbe_phy_x550em_ext_t) {
3469 status = ixgbe_init_ext_t_x550em(hw);
3470 if (status)
3471 return status;
3472 }
3473
3474 /* Setup SFP module if there is one present. */
3475 if (hw->phy.sfp_setup_needed) {
3476 status = hw->mac.ops.setup_sfp(hw);
3477 hw->phy.sfp_setup_needed = false;
3478 }
3479
3480 if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
3481 return status;
3482
3483 /* Reset PHY */
3484 if (!hw->phy.reset_disable && hw->phy.ops.reset)
3485 hw->phy.ops.reset(hw);
3486
3487 mac_reset_top:
3488 /* Issue global reset to the MAC. Needs to be SW reset if link is up.
3489 * If link reset is used when link is up, it might reset the PHY when
3490 * mng is using it. If link is down or the flag to force full link
3491 * reset is set, then perform link reset.
3492 */
3493 ctrl = IXGBE_CTRL_LNK_RST;
3494
3495 if (!hw->force_full_reset) {
3496 hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
3497 if (link_up)
3498 ctrl = IXGBE_CTRL_RST;
3499 }
3500
3501 status = hw->mac.ops.acquire_swfw_sync(hw, swfw_mask);
3502 if (status) {
3503 hw_dbg(hw, "semaphore failed with %d", status);
3504 return IXGBE_ERR_SWFW_SYNC;
3505 }
3506
3507 ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL);
3508 IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
3509 IXGBE_WRITE_FLUSH(hw);
3510 hw->mac.ops.release_swfw_sync(hw, swfw_mask);
3511 usleep_range(1000, 1200);
3512
3513 /* Poll for reset bit to self-clear meaning reset is complete */
3514 for (i = 0; i < 10; i++) {
3515 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
3516 if (!(ctrl & IXGBE_CTRL_RST_MASK))
3517 break;
3518 udelay(1);
3519 }
3520
3521 if (ctrl & IXGBE_CTRL_RST_MASK) {
3522 status = IXGBE_ERR_RESET_FAILED;
3523 hw_dbg(hw, "Reset polling failed to complete.\n");
3524 }
3525
3526 msleep(50);
3527
3528 /* Double resets are required for recovery from certain error
3529 * clear the multicast table. Also reset num_rar_entries to 128,
3530 * since we modify this value when programming the SAN MAC address.
3531 */
3532 if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
3533 hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
3534 goto mac_reset_top;
3535 }
3536
3537 /* Store the permanent mac address */
3538 hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
3539
3540 /* Store MAC address from RAR0, clear receive address registers, and
3541 * clear the multicast table. Also reset num_rar_entries to 128,
3542 * since we modify this value when programming the SAN MAC address.
3543 */
3544 hw->mac.num_rar_entries = 128;
3545 hw->mac.ops.init_rx_addrs(hw);
3546
3547 ixgbe_set_mdio_speed(hw);
3548
3549 if (hw->device_id == IXGBE_DEV_ID_X550EM_X_SFP)
3550 ixgbe_setup_mux_ctl(hw);
3551
3552 return status;
3553 }
3554
3555 /** ixgbe_set_ethertype_anti_spoofing_X550 - Enable/Disable Ethertype
3556 * anti-spoofing
3557 * @hw: pointer to hardware structure
3558 * @enable: enable or disable switch for Ethertype anti-spoofing
3559 * @vf: Virtual Function pool - VF Pool to set for Ethertype anti-spoofing
3560 **/
ixgbe_set_ethertype_anti_spoofing_X550(struct ixgbe_hw * hw,bool enable,int vf)3561 static void ixgbe_set_ethertype_anti_spoofing_X550(struct ixgbe_hw *hw,
3562 bool enable, int vf)
3563 {
3564 int vf_target_reg = vf >> 3;
3565 int vf_target_shift = vf % 8 + IXGBE_SPOOF_ETHERTYPEAS_SHIFT;
3566 u32 pfvfspoof;
3567
3568 pfvfspoof = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg));
3569 if (enable)
3570 pfvfspoof |= BIT(vf_target_shift);
3571 else
3572 pfvfspoof &= ~BIT(vf_target_shift);
3573
3574 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), pfvfspoof);
3575 }
3576
3577 /** ixgbe_set_source_address_pruning_X550 - Enable/Disbale src address pruning
3578 * @hw: pointer to hardware structure
3579 * @enable: enable or disable source address pruning
3580 * @pool: Rx pool to set source address pruning for
3581 **/
ixgbe_set_source_address_pruning_X550(struct ixgbe_hw * hw,bool enable,unsigned int pool)3582 static void ixgbe_set_source_address_pruning_X550(struct ixgbe_hw *hw,
3583 bool enable,
3584 unsigned int pool)
3585 {
3586 u64 pfflp;
3587
3588 /* max rx pool is 63 */
3589 if (pool > 63)
3590 return;
3591
3592 pfflp = (u64)IXGBE_READ_REG(hw, IXGBE_PFFLPL);
3593 pfflp |= (u64)IXGBE_READ_REG(hw, IXGBE_PFFLPH) << 32;
3594
3595 if (enable)
3596 pfflp |= (1ULL << pool);
3597 else
3598 pfflp &= ~(1ULL << pool);
3599
3600 IXGBE_WRITE_REG(hw, IXGBE_PFFLPL, (u32)pfflp);
3601 IXGBE_WRITE_REG(hw, IXGBE_PFFLPH, (u32)(pfflp >> 32));
3602 }
3603
3604 /**
3605 * ixgbe_setup_fc_backplane_x550em_a - Set up flow control
3606 * @hw: pointer to hardware structure
3607 *
3608 * Called at init time to set up flow control.
3609 **/
ixgbe_setup_fc_backplane_x550em_a(struct ixgbe_hw * hw)3610 static s32 ixgbe_setup_fc_backplane_x550em_a(struct ixgbe_hw *hw)
3611 {
3612 s32 status = 0;
3613 u32 an_cntl = 0;
3614
3615 /* Validate the requested mode */
3616 if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
3617 hw_err(hw, "ixgbe_fc_rx_pause not valid in strict IEEE mode\n");
3618 return IXGBE_ERR_INVALID_LINK_SETTINGS;
3619 }
3620
3621 if (hw->fc.requested_mode == ixgbe_fc_default)
3622 hw->fc.requested_mode = ixgbe_fc_full;
3623
3624 /* Set up the 1G and 10G flow control advertisement registers so the
3625 * HW will be able to do FC autoneg once the cable is plugged in. If
3626 * we link at 10G, the 1G advertisement is harmless and vice versa.
3627 */
3628 status = hw->mac.ops.read_iosf_sb_reg(hw,
3629 IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
3630 IXGBE_SB_IOSF_TARGET_KR_PHY, &an_cntl);
3631
3632 if (status) {
3633 hw_dbg(hw, "Auto-Negotiation did not complete\n");
3634 return status;
3635 }
3636
3637 /* The possible values of fc.requested_mode are:
3638 * 0: Flow control is completely disabled
3639 * 1: Rx flow control is enabled (we can receive pause frames,
3640 * but not send pause frames).
3641 * 2: Tx flow control is enabled (we can send pause frames but
3642 * we do not support receiving pause frames).
3643 * 3: Both Rx and Tx flow control (symmetric) are enabled.
3644 * other: Invalid.
3645 */
3646 switch (hw->fc.requested_mode) {
3647 case ixgbe_fc_none:
3648 /* Flow control completely disabled by software override. */
3649 an_cntl &= ~(IXGBE_KRM_AN_CNTL_1_SYM_PAUSE |
3650 IXGBE_KRM_AN_CNTL_1_ASM_PAUSE);
3651 break;
3652 case ixgbe_fc_tx_pause:
3653 /* Tx Flow control is enabled, and Rx Flow control is
3654 * disabled by software override.
3655 */
3656 an_cntl |= IXGBE_KRM_AN_CNTL_1_ASM_PAUSE;
3657 an_cntl &= ~IXGBE_KRM_AN_CNTL_1_SYM_PAUSE;
3658 break;
3659 case ixgbe_fc_rx_pause:
3660 /* Rx Flow control is enabled and Tx Flow control is
3661 * disabled by software override. Since there really
3662 * isn't a way to advertise that we are capable of RX
3663 * Pause ONLY, we will advertise that we support both
3664 * symmetric and asymmetric Rx PAUSE, as such we fall
3665 * through to the fc_full statement. Later, we will
3666 * disable the adapter's ability to send PAUSE frames.
3667 */
3668 case ixgbe_fc_full:
3669 /* Flow control (both Rx and Tx) is enabled by SW override. */
3670 an_cntl |= IXGBE_KRM_AN_CNTL_1_SYM_PAUSE |
3671 IXGBE_KRM_AN_CNTL_1_ASM_PAUSE;
3672 break;
3673 default:
3674 hw_err(hw, "Flow control param set incorrectly\n");
3675 return IXGBE_ERR_CONFIG;
3676 }
3677
3678 status = hw->mac.ops.write_iosf_sb_reg(hw,
3679 IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
3680 IXGBE_SB_IOSF_TARGET_KR_PHY, an_cntl);
3681
3682 /* Restart auto-negotiation. */
3683 status = ixgbe_restart_an_internal_phy_x550em(hw);
3684
3685 return status;
3686 }
3687
3688 /**
3689 * ixgbe_set_mux - Set mux for port 1 access with CS4227
3690 * @hw: pointer to hardware structure
3691 * @state: set mux if 1, clear if 0
3692 */
ixgbe_set_mux(struct ixgbe_hw * hw,u8 state)3693 static void ixgbe_set_mux(struct ixgbe_hw *hw, u8 state)
3694 {
3695 u32 esdp;
3696
3697 if (!hw->bus.lan_id)
3698 return;
3699 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
3700 if (state)
3701 esdp |= IXGBE_ESDP_SDP1;
3702 else
3703 esdp &= ~IXGBE_ESDP_SDP1;
3704 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
3705 IXGBE_WRITE_FLUSH(hw);
3706 }
3707
3708 /**
3709 * ixgbe_acquire_swfw_sync_X550em - Acquire SWFW semaphore
3710 * @hw: pointer to hardware structure
3711 * @mask: Mask to specify which semaphore to acquire
3712 *
3713 * Acquires the SWFW semaphore and sets the I2C MUX
3714 */
ixgbe_acquire_swfw_sync_X550em(struct ixgbe_hw * hw,u32 mask)3715 static s32 ixgbe_acquire_swfw_sync_X550em(struct ixgbe_hw *hw, u32 mask)
3716 {
3717 s32 status;
3718
3719 status = ixgbe_acquire_swfw_sync_X540(hw, mask);
3720 if (status)
3721 return status;
3722
3723 if (mask & IXGBE_GSSR_I2C_MASK)
3724 ixgbe_set_mux(hw, 1);
3725
3726 return 0;
3727 }
3728
3729 /**
3730 * ixgbe_release_swfw_sync_X550em - Release SWFW semaphore
3731 * @hw: pointer to hardware structure
3732 * @mask: Mask to specify which semaphore to release
3733 *
3734 * Releases the SWFW semaphore and sets the I2C MUX
3735 */
ixgbe_release_swfw_sync_X550em(struct ixgbe_hw * hw,u32 mask)3736 static void ixgbe_release_swfw_sync_X550em(struct ixgbe_hw *hw, u32 mask)
3737 {
3738 if (mask & IXGBE_GSSR_I2C_MASK)
3739 ixgbe_set_mux(hw, 0);
3740
3741 ixgbe_release_swfw_sync_X540(hw, mask);
3742 }
3743
3744 /**
3745 * ixgbe_acquire_swfw_sync_x550em_a - Acquire SWFW semaphore
3746 * @hw: pointer to hardware structure
3747 * @mask: Mask to specify which semaphore to acquire
3748 *
3749 * Acquires the SWFW semaphore and get the shared PHY token as needed
3750 */
ixgbe_acquire_swfw_sync_x550em_a(struct ixgbe_hw * hw,u32 mask)3751 static s32 ixgbe_acquire_swfw_sync_x550em_a(struct ixgbe_hw *hw, u32 mask)
3752 {
3753 u32 hmask = mask & ~IXGBE_GSSR_TOKEN_SM;
3754 int retries = FW_PHY_TOKEN_RETRIES;
3755 s32 status;
3756
3757 while (--retries) {
3758 status = 0;
3759 if (hmask)
3760 status = ixgbe_acquire_swfw_sync_X540(hw, hmask);
3761 if (status)
3762 return status;
3763 if (!(mask & IXGBE_GSSR_TOKEN_SM))
3764 return 0;
3765
3766 status = ixgbe_get_phy_token(hw);
3767 if (!status)
3768 return 0;
3769 if (hmask)
3770 ixgbe_release_swfw_sync_X540(hw, hmask);
3771 if (status != IXGBE_ERR_TOKEN_RETRY)
3772 return status;
3773 msleep(FW_PHY_TOKEN_DELAY);
3774 }
3775
3776 return status;
3777 }
3778
3779 /**
3780 * ixgbe_release_swfw_sync_x550em_a - Release SWFW semaphore
3781 * @hw: pointer to hardware structure
3782 * @mask: Mask to specify which semaphore to release
3783 *
3784 * Release the SWFW semaphore and puts the shared PHY token as needed
3785 */
ixgbe_release_swfw_sync_x550em_a(struct ixgbe_hw * hw,u32 mask)3786 static void ixgbe_release_swfw_sync_x550em_a(struct ixgbe_hw *hw, u32 mask)
3787 {
3788 u32 hmask = mask & ~IXGBE_GSSR_TOKEN_SM;
3789
3790 if (mask & IXGBE_GSSR_TOKEN_SM)
3791 ixgbe_put_phy_token(hw);
3792
3793 if (hmask)
3794 ixgbe_release_swfw_sync_X540(hw, hmask);
3795 }
3796
3797 /**
3798 * ixgbe_read_phy_reg_x550a - Reads specified PHY register
3799 * @hw: pointer to hardware structure
3800 * @reg_addr: 32 bit address of PHY register to read
3801 * @device_type: 5 bit device type
3802 * @phy_data: Pointer to read data from PHY register
3803 *
3804 * Reads a value from a specified PHY register using the SWFW lock and PHY
3805 * Token. The PHY Token is needed since the MDIO is shared between to MAC
3806 * instances.
3807 */
ixgbe_read_phy_reg_x550a(struct ixgbe_hw * hw,u32 reg_addr,u32 device_type,u16 * phy_data)3808 static s32 ixgbe_read_phy_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr,
3809 u32 device_type, u16 *phy_data)
3810 {
3811 u32 mask = hw->phy.phy_semaphore_mask | IXGBE_GSSR_TOKEN_SM;
3812 s32 status;
3813
3814 if (hw->mac.ops.acquire_swfw_sync(hw, mask))
3815 return IXGBE_ERR_SWFW_SYNC;
3816
3817 status = hw->phy.ops.read_reg_mdi(hw, reg_addr, device_type, phy_data);
3818
3819 hw->mac.ops.release_swfw_sync(hw, mask);
3820
3821 return status;
3822 }
3823
3824 /**
3825 * ixgbe_write_phy_reg_x550a - Writes specified PHY register
3826 * @hw: pointer to hardware structure
3827 * @reg_addr: 32 bit PHY register to write
3828 * @device_type: 5 bit device type
3829 * @phy_data: Data to write to the PHY register
3830 *
3831 * Writes a value to specified PHY register using the SWFW lock and PHY Token.
3832 * The PHY Token is needed since the MDIO is shared between to MAC instances.
3833 */
ixgbe_write_phy_reg_x550a(struct ixgbe_hw * hw,u32 reg_addr,u32 device_type,u16 phy_data)3834 static s32 ixgbe_write_phy_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr,
3835 u32 device_type, u16 phy_data)
3836 {
3837 u32 mask = hw->phy.phy_semaphore_mask | IXGBE_GSSR_TOKEN_SM;
3838 s32 status;
3839
3840 if (hw->mac.ops.acquire_swfw_sync(hw, mask))
3841 return IXGBE_ERR_SWFW_SYNC;
3842
3843 status = ixgbe_write_phy_reg_mdi(hw, reg_addr, device_type, phy_data);
3844 hw->mac.ops.release_swfw_sync(hw, mask);
3845
3846 return status;
3847 }
3848
3849 #define X550_COMMON_MAC \
3850 .init_hw = &ixgbe_init_hw_generic, \
3851 .start_hw = &ixgbe_start_hw_X540, \
3852 .clear_hw_cntrs = &ixgbe_clear_hw_cntrs_generic, \
3853 .enable_rx_dma = &ixgbe_enable_rx_dma_generic, \
3854 .get_mac_addr = &ixgbe_get_mac_addr_generic, \
3855 .get_device_caps = &ixgbe_get_device_caps_generic, \
3856 .stop_adapter = &ixgbe_stop_adapter_generic, \
3857 .set_lan_id = &ixgbe_set_lan_id_multi_port_pcie, \
3858 .read_analog_reg8 = NULL, \
3859 .write_analog_reg8 = NULL, \
3860 .set_rxpba = &ixgbe_set_rxpba_generic, \
3861 .check_link = &ixgbe_check_mac_link_generic, \
3862 .blink_led_start = &ixgbe_blink_led_start_X540, \
3863 .blink_led_stop = &ixgbe_blink_led_stop_X540, \
3864 .set_rar = &ixgbe_set_rar_generic, \
3865 .clear_rar = &ixgbe_clear_rar_generic, \
3866 .set_vmdq = &ixgbe_set_vmdq_generic, \
3867 .set_vmdq_san_mac = &ixgbe_set_vmdq_san_mac_generic, \
3868 .clear_vmdq = &ixgbe_clear_vmdq_generic, \
3869 .init_rx_addrs = &ixgbe_init_rx_addrs_generic, \
3870 .update_mc_addr_list = &ixgbe_update_mc_addr_list_generic, \
3871 .enable_mc = &ixgbe_enable_mc_generic, \
3872 .disable_mc = &ixgbe_disable_mc_generic, \
3873 .clear_vfta = &ixgbe_clear_vfta_generic, \
3874 .set_vfta = &ixgbe_set_vfta_generic, \
3875 .fc_enable = &ixgbe_fc_enable_generic, \
3876 .set_fw_drv_ver = &ixgbe_set_fw_drv_ver_x550, \
3877 .init_uta_tables = &ixgbe_init_uta_tables_generic, \
3878 .set_mac_anti_spoofing = &ixgbe_set_mac_anti_spoofing, \
3879 .set_vlan_anti_spoofing = &ixgbe_set_vlan_anti_spoofing, \
3880 .set_source_address_pruning = \
3881 &ixgbe_set_source_address_pruning_X550, \
3882 .set_ethertype_anti_spoofing = \
3883 &ixgbe_set_ethertype_anti_spoofing_X550, \
3884 .disable_rx_buff = &ixgbe_disable_rx_buff_generic, \
3885 .enable_rx_buff = &ixgbe_enable_rx_buff_generic, \
3886 .get_thermal_sensor_data = NULL, \
3887 .init_thermal_sensor_thresh = NULL, \
3888 .fw_recovery_mode = &ixgbe_fw_recovery_mode_X550, \
3889 .enable_rx = &ixgbe_enable_rx_generic, \
3890 .disable_rx = &ixgbe_disable_rx_x550, \
3891
3892 static const struct ixgbe_mac_operations mac_ops_X550 = {
3893 X550_COMMON_MAC
3894 .led_on = ixgbe_led_on_generic,
3895 .led_off = ixgbe_led_off_generic,
3896 .init_led_link_act = ixgbe_init_led_link_act_generic,
3897 .reset_hw = &ixgbe_reset_hw_X540,
3898 .get_media_type = &ixgbe_get_media_type_X540,
3899 .get_san_mac_addr = &ixgbe_get_san_mac_addr_generic,
3900 .get_wwn_prefix = &ixgbe_get_wwn_prefix_generic,
3901 .setup_link = &ixgbe_setup_mac_link_X540,
3902 .get_link_capabilities = &ixgbe_get_copper_link_capabilities_generic,
3903 .get_bus_info = &ixgbe_get_bus_info_generic,
3904 .setup_sfp = NULL,
3905 .acquire_swfw_sync = &ixgbe_acquire_swfw_sync_X540,
3906 .release_swfw_sync = &ixgbe_release_swfw_sync_X540,
3907 .init_swfw_sync = &ixgbe_init_swfw_sync_X540,
3908 .prot_autoc_read = prot_autoc_read_generic,
3909 .prot_autoc_write = prot_autoc_write_generic,
3910 .setup_fc = ixgbe_setup_fc_generic,
3911 .fc_autoneg = ixgbe_fc_autoneg,
3912 };
3913
3914 static const struct ixgbe_mac_operations mac_ops_X550EM_x = {
3915 X550_COMMON_MAC
3916 .led_on = ixgbe_led_on_t_x550em,
3917 .led_off = ixgbe_led_off_t_x550em,
3918 .init_led_link_act = ixgbe_init_led_link_act_generic,
3919 .reset_hw = &ixgbe_reset_hw_X550em,
3920 .get_media_type = &ixgbe_get_media_type_X550em,
3921 .get_san_mac_addr = NULL,
3922 .get_wwn_prefix = NULL,
3923 .setup_link = &ixgbe_setup_mac_link_X540,
3924 .get_link_capabilities = &ixgbe_get_link_capabilities_X550em,
3925 .get_bus_info = &ixgbe_get_bus_info_X550em,
3926 .setup_sfp = ixgbe_setup_sfp_modules_X550em,
3927 .acquire_swfw_sync = &ixgbe_acquire_swfw_sync_X550em,
3928 .release_swfw_sync = &ixgbe_release_swfw_sync_X550em,
3929 .init_swfw_sync = &ixgbe_init_swfw_sync_X540,
3930 .setup_fc = NULL, /* defined later */
3931 .fc_autoneg = ixgbe_fc_autoneg,
3932 .read_iosf_sb_reg = ixgbe_read_iosf_sb_reg_x550,
3933 .write_iosf_sb_reg = ixgbe_write_iosf_sb_reg_x550,
3934 };
3935
3936 static const struct ixgbe_mac_operations mac_ops_X550EM_x_fw = {
3937 X550_COMMON_MAC
3938 .led_on = NULL,
3939 .led_off = NULL,
3940 .init_led_link_act = NULL,
3941 .reset_hw = &ixgbe_reset_hw_X550em,
3942 .get_media_type = &ixgbe_get_media_type_X550em,
3943 .get_san_mac_addr = NULL,
3944 .get_wwn_prefix = NULL,
3945 .setup_link = &ixgbe_setup_mac_link_X540,
3946 .get_link_capabilities = &ixgbe_get_link_capabilities_X550em,
3947 .get_bus_info = &ixgbe_get_bus_info_X550em,
3948 .setup_sfp = ixgbe_setup_sfp_modules_X550em,
3949 .acquire_swfw_sync = &ixgbe_acquire_swfw_sync_X550em,
3950 .release_swfw_sync = &ixgbe_release_swfw_sync_X550em,
3951 .init_swfw_sync = &ixgbe_init_swfw_sync_X540,
3952 .setup_fc = NULL,
3953 .fc_autoneg = ixgbe_fc_autoneg,
3954 .read_iosf_sb_reg = ixgbe_read_iosf_sb_reg_x550,
3955 .write_iosf_sb_reg = ixgbe_write_iosf_sb_reg_x550,
3956 };
3957
3958 static const struct ixgbe_mac_operations mac_ops_x550em_a = {
3959 X550_COMMON_MAC
3960 .led_on = ixgbe_led_on_t_x550em,
3961 .led_off = ixgbe_led_off_t_x550em,
3962 .init_led_link_act = ixgbe_init_led_link_act_generic,
3963 .reset_hw = ixgbe_reset_hw_X550em,
3964 .get_media_type = ixgbe_get_media_type_X550em,
3965 .get_san_mac_addr = NULL,
3966 .get_wwn_prefix = NULL,
3967 .setup_link = &ixgbe_setup_mac_link_X540,
3968 .get_link_capabilities = ixgbe_get_link_capabilities_X550em,
3969 .get_bus_info = ixgbe_get_bus_info_X550em,
3970 .setup_sfp = ixgbe_setup_sfp_modules_X550em,
3971 .acquire_swfw_sync = ixgbe_acquire_swfw_sync_x550em_a,
3972 .release_swfw_sync = ixgbe_release_swfw_sync_x550em_a,
3973 .setup_fc = ixgbe_setup_fc_x550em,
3974 .fc_autoneg = ixgbe_fc_autoneg,
3975 .read_iosf_sb_reg = ixgbe_read_iosf_sb_reg_x550a,
3976 .write_iosf_sb_reg = ixgbe_write_iosf_sb_reg_x550a,
3977 };
3978
3979 static const struct ixgbe_mac_operations mac_ops_x550em_a_fw = {
3980 X550_COMMON_MAC
3981 .led_on = ixgbe_led_on_generic,
3982 .led_off = ixgbe_led_off_generic,
3983 .init_led_link_act = ixgbe_init_led_link_act_generic,
3984 .reset_hw = ixgbe_reset_hw_X550em,
3985 .get_media_type = ixgbe_get_media_type_X550em,
3986 .get_san_mac_addr = NULL,
3987 .get_wwn_prefix = NULL,
3988 .setup_link = NULL, /* defined later */
3989 .get_link_capabilities = ixgbe_get_link_capabilities_X550em,
3990 .get_bus_info = ixgbe_get_bus_info_X550em,
3991 .setup_sfp = ixgbe_setup_sfp_modules_X550em,
3992 .acquire_swfw_sync = ixgbe_acquire_swfw_sync_x550em_a,
3993 .release_swfw_sync = ixgbe_release_swfw_sync_x550em_a,
3994 .setup_fc = ixgbe_setup_fc_x550em,
3995 .fc_autoneg = ixgbe_fc_autoneg,
3996 .read_iosf_sb_reg = ixgbe_read_iosf_sb_reg_x550a,
3997 .write_iosf_sb_reg = ixgbe_write_iosf_sb_reg_x550a,
3998 };
3999
4000 #define X550_COMMON_EEP \
4001 .read = &ixgbe_read_ee_hostif_X550, \
4002 .read_buffer = &ixgbe_read_ee_hostif_buffer_X550, \
4003 .write = &ixgbe_write_ee_hostif_X550, \
4004 .write_buffer = &ixgbe_write_ee_hostif_buffer_X550, \
4005 .validate_checksum = &ixgbe_validate_eeprom_checksum_X550, \
4006 .update_checksum = &ixgbe_update_eeprom_checksum_X550, \
4007 .calc_checksum = &ixgbe_calc_eeprom_checksum_X550, \
4008
4009 static const struct ixgbe_eeprom_operations eeprom_ops_X550 = {
4010 X550_COMMON_EEP
4011 .init_params = &ixgbe_init_eeprom_params_X550,
4012 };
4013
4014 static const struct ixgbe_eeprom_operations eeprom_ops_X550EM_x = {
4015 X550_COMMON_EEP
4016 .init_params = &ixgbe_init_eeprom_params_X540,
4017 };
4018
4019 #define X550_COMMON_PHY \
4020 .identify_sfp = &ixgbe_identify_module_generic, \
4021 .reset = NULL, \
4022 .setup_link_speed = &ixgbe_setup_phy_link_speed_generic, \
4023 .read_i2c_byte = &ixgbe_read_i2c_byte_generic, \
4024 .write_i2c_byte = &ixgbe_write_i2c_byte_generic, \
4025 .read_i2c_sff8472 = &ixgbe_read_i2c_sff8472_generic, \
4026 .read_i2c_eeprom = &ixgbe_read_i2c_eeprom_generic, \
4027 .write_i2c_eeprom = &ixgbe_write_i2c_eeprom_generic, \
4028 .setup_link = &ixgbe_setup_phy_link_generic, \
4029 .set_phy_power = NULL,
4030
4031 static const struct ixgbe_phy_operations phy_ops_X550 = {
4032 X550_COMMON_PHY
4033 .check_overtemp = &ixgbe_tn_check_overtemp,
4034 .init = NULL,
4035 .identify = &ixgbe_identify_phy_generic,
4036 .read_reg = &ixgbe_read_phy_reg_generic,
4037 .write_reg = &ixgbe_write_phy_reg_generic,
4038 };
4039
4040 static const struct ixgbe_phy_operations phy_ops_X550EM_x = {
4041 X550_COMMON_PHY
4042 .check_overtemp = &ixgbe_tn_check_overtemp,
4043 .init = &ixgbe_init_phy_ops_X550em,
4044 .identify = &ixgbe_identify_phy_x550em,
4045 .read_reg = &ixgbe_read_phy_reg_generic,
4046 .write_reg = &ixgbe_write_phy_reg_generic,
4047 };
4048
4049 static const struct ixgbe_phy_operations phy_ops_x550em_x_fw = {
4050 X550_COMMON_PHY
4051 .check_overtemp = NULL,
4052 .init = ixgbe_init_phy_ops_X550em,
4053 .identify = ixgbe_identify_phy_x550em,
4054 .read_reg = NULL,
4055 .write_reg = NULL,
4056 .read_reg_mdi = NULL,
4057 .write_reg_mdi = NULL,
4058 };
4059
4060 static const struct ixgbe_phy_operations phy_ops_x550em_a = {
4061 X550_COMMON_PHY
4062 .check_overtemp = &ixgbe_tn_check_overtemp,
4063 .init = &ixgbe_init_phy_ops_X550em,
4064 .identify = &ixgbe_identify_phy_x550em,
4065 .read_reg = &ixgbe_read_phy_reg_x550a,
4066 .write_reg = &ixgbe_write_phy_reg_x550a,
4067 .read_reg_mdi = &ixgbe_read_phy_reg_mdi,
4068 .write_reg_mdi = &ixgbe_write_phy_reg_mdi,
4069 };
4070
4071 static const struct ixgbe_phy_operations phy_ops_x550em_a_fw = {
4072 X550_COMMON_PHY
4073 .check_overtemp = ixgbe_check_overtemp_fw,
4074 .init = ixgbe_init_phy_ops_X550em,
4075 .identify = ixgbe_identify_phy_fw,
4076 .read_reg = NULL,
4077 .write_reg = NULL,
4078 .read_reg_mdi = NULL,
4079 .write_reg_mdi = NULL,
4080 };
4081
4082 static const struct ixgbe_link_operations link_ops_x550em_x = {
4083 .read_link = &ixgbe_read_i2c_combined_generic,
4084 .read_link_unlocked = &ixgbe_read_i2c_combined_generic_unlocked,
4085 .write_link = &ixgbe_write_i2c_combined_generic,
4086 .write_link_unlocked = &ixgbe_write_i2c_combined_generic_unlocked,
4087 };
4088
4089 static const u32 ixgbe_mvals_X550[IXGBE_MVALS_IDX_LIMIT] = {
4090 IXGBE_MVALS_INIT(X550)
4091 };
4092
4093 static const u32 ixgbe_mvals_X550EM_x[IXGBE_MVALS_IDX_LIMIT] = {
4094 IXGBE_MVALS_INIT(X550EM_x)
4095 };
4096
4097 static const u32 ixgbe_mvals_x550em_a[IXGBE_MVALS_IDX_LIMIT] = {
4098 IXGBE_MVALS_INIT(X550EM_a)
4099 };
4100
4101 const struct ixgbe_info ixgbe_X550_info = {
4102 .mac = ixgbe_mac_X550,
4103 .get_invariants = &ixgbe_get_invariants_X540,
4104 .mac_ops = &mac_ops_X550,
4105 .eeprom_ops = &eeprom_ops_X550,
4106 .phy_ops = &phy_ops_X550,
4107 .mbx_ops = &mbx_ops_generic,
4108 .mvals = ixgbe_mvals_X550,
4109 };
4110
4111 const struct ixgbe_info ixgbe_X550EM_x_info = {
4112 .mac = ixgbe_mac_X550EM_x,
4113 .get_invariants = &ixgbe_get_invariants_X550_x,
4114 .mac_ops = &mac_ops_X550EM_x,
4115 .eeprom_ops = &eeprom_ops_X550EM_x,
4116 .phy_ops = &phy_ops_X550EM_x,
4117 .mbx_ops = &mbx_ops_generic,
4118 .mvals = ixgbe_mvals_X550EM_x,
4119 .link_ops = &link_ops_x550em_x,
4120 };
4121
4122 const struct ixgbe_info ixgbe_x550em_x_fw_info = {
4123 .mac = ixgbe_mac_X550EM_x,
4124 .get_invariants = ixgbe_get_invariants_X550_x_fw,
4125 .mac_ops = &mac_ops_X550EM_x_fw,
4126 .eeprom_ops = &eeprom_ops_X550EM_x,
4127 .phy_ops = &phy_ops_x550em_x_fw,
4128 .mbx_ops = &mbx_ops_generic,
4129 .mvals = ixgbe_mvals_X550EM_x,
4130 };
4131
4132 const struct ixgbe_info ixgbe_x550em_a_info = {
4133 .mac = ixgbe_mac_x550em_a,
4134 .get_invariants = &ixgbe_get_invariants_X550_a,
4135 .mac_ops = &mac_ops_x550em_a,
4136 .eeprom_ops = &eeprom_ops_X550EM_x,
4137 .phy_ops = &phy_ops_x550em_a,
4138 .mbx_ops = &mbx_ops_generic,
4139 .mvals = ixgbe_mvals_x550em_a,
4140 };
4141
4142 const struct ixgbe_info ixgbe_x550em_a_fw_info = {
4143 .mac = ixgbe_mac_x550em_a,
4144 .get_invariants = ixgbe_get_invariants_X550_a_fw,
4145 .mac_ops = &mac_ops_x550em_a_fw,
4146 .eeprom_ops = &eeprom_ops_X550EM_x,
4147 .phy_ops = &phy_ops_x550em_a_fw,
4148 .mbx_ops = &mbx_ops_generic,
4149 .mvals = ixgbe_mvals_x550em_a,
4150 };
4151