1 /*
2 * QLogic qlcnic NIC Driver
3 * Copyright (c) 2009-2013 QLogic Corporation
4 *
5 * See LICENSE.qlcnic for copyright and licensing details.
6 */
7
8 #include "qlcnic_sriov.h"
9 #include "qlcnic.h"
10 #include "qlcnic_hw.h"
11
12 /* Reset template definitions */
13 #define QLC_83XX_RESTART_TEMPLATE_SIZE 0x2000
14 #define QLC_83XX_RESET_TEMPLATE_ADDR 0x4F0000
15 #define QLC_83XX_RESET_SEQ_VERSION 0x0101
16
17 #define QLC_83XX_OPCODE_NOP 0x0000
18 #define QLC_83XX_OPCODE_WRITE_LIST 0x0001
19 #define QLC_83XX_OPCODE_READ_WRITE_LIST 0x0002
20 #define QLC_83XX_OPCODE_POLL_LIST 0x0004
21 #define QLC_83XX_OPCODE_POLL_WRITE_LIST 0x0008
22 #define QLC_83XX_OPCODE_READ_MODIFY_WRITE 0x0010
23 #define QLC_83XX_OPCODE_SEQ_PAUSE 0x0020
24 #define QLC_83XX_OPCODE_SEQ_END 0x0040
25 #define QLC_83XX_OPCODE_TMPL_END 0x0080
26 #define QLC_83XX_OPCODE_POLL_READ_LIST 0x0100
27
28 /* EPORT control registers */
29 #define QLC_83XX_RESET_CONTROL 0x28084E50
30 #define QLC_83XX_RESET_REG 0x28084E60
31 #define QLC_83XX_RESET_PORT0 0x28084E70
32 #define QLC_83XX_RESET_PORT1 0x28084E80
33 #define QLC_83XX_RESET_PORT2 0x28084E90
34 #define QLC_83XX_RESET_PORT3 0x28084EA0
35 #define QLC_83XX_RESET_SRESHIM 0x28084EB0
36 #define QLC_83XX_RESET_EPGSHIM 0x28084EC0
37 #define QLC_83XX_RESET_ETHERPCS 0x28084ED0
38
39 static int qlcnic_83xx_init_default_driver(struct qlcnic_adapter *adapter);
40 static int qlcnic_83xx_check_heartbeat(struct qlcnic_adapter *p_dev);
41 static int qlcnic_83xx_restart_hw(struct qlcnic_adapter *adapter);
42 static int qlcnic_83xx_check_hw_status(struct qlcnic_adapter *p_dev);
43 static int qlcnic_83xx_get_reset_instruction_template(struct qlcnic_adapter *);
44 static void qlcnic_83xx_stop_hw(struct qlcnic_adapter *);
45
46 /* Template header */
47 struct qlc_83xx_reset_hdr {
48 #if defined(__LITTLE_ENDIAN)
49 u16 version;
50 u16 signature;
51 u16 size;
52 u16 entries;
53 u16 hdr_size;
54 u16 checksum;
55 u16 init_offset;
56 u16 start_offset;
57 #elif defined(__BIG_ENDIAN)
58 u16 signature;
59 u16 version;
60 u16 entries;
61 u16 size;
62 u16 checksum;
63 u16 hdr_size;
64 u16 start_offset;
65 u16 init_offset;
66 #endif
67 } __packed;
68
69 /* Command entry header. */
70 struct qlc_83xx_entry_hdr {
71 #if defined(__LITTLE_ENDIAN)
72 u16 cmd;
73 u16 size;
74 u16 count;
75 u16 delay;
76 #elif defined(__BIG_ENDIAN)
77 u16 size;
78 u16 cmd;
79 u16 delay;
80 u16 count;
81 #endif
82 } __packed;
83
84 /* Generic poll command */
85 struct qlc_83xx_poll {
86 u32 mask;
87 u32 status;
88 } __packed;
89
90 /* Read modify write command */
91 struct qlc_83xx_rmw {
92 u32 mask;
93 u32 xor_value;
94 u32 or_value;
95 #if defined(__LITTLE_ENDIAN)
96 u8 shl;
97 u8 shr;
98 u8 index_a;
99 u8 rsvd;
100 #elif defined(__BIG_ENDIAN)
101 u8 rsvd;
102 u8 index_a;
103 u8 shr;
104 u8 shl;
105 #endif
106 } __packed;
107
108 /* Generic command with 2 DWORD */
109 struct qlc_83xx_entry {
110 u32 arg1;
111 u32 arg2;
112 } __packed;
113
114 /* Generic command with 4 DWORD */
115 struct qlc_83xx_quad_entry {
116 u32 dr_addr;
117 u32 dr_value;
118 u32 ar_addr;
119 u32 ar_value;
120 } __packed;
121 static const char *const qlc_83xx_idc_states[] = {
122 "Unknown",
123 "Cold",
124 "Init",
125 "Ready",
126 "Need Reset",
127 "Need Quiesce",
128 "Failed",
129 "Quiesce"
130 };
131
132 static int
qlcnic_83xx_idc_check_driver_presence_reg(struct qlcnic_adapter * adapter)133 qlcnic_83xx_idc_check_driver_presence_reg(struct qlcnic_adapter *adapter)
134 {
135 u32 val;
136
137 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE);
138 if ((val & 0xFFFF))
139 return 1;
140 else
141 return 0;
142 }
143
qlcnic_83xx_idc_log_state_history(struct qlcnic_adapter * adapter)144 static void qlcnic_83xx_idc_log_state_history(struct qlcnic_adapter *adapter)
145 {
146 u32 cur, prev;
147 cur = adapter->ahw->idc.curr_state;
148 prev = adapter->ahw->idc.prev_state;
149
150 dev_info(&adapter->pdev->dev,
151 "current state = %s, prev state = %s\n",
152 adapter->ahw->idc.name[cur],
153 adapter->ahw->idc.name[prev]);
154 }
155
qlcnic_83xx_idc_update_audit_reg(struct qlcnic_adapter * adapter,u8 mode,int lock)156 static int qlcnic_83xx_idc_update_audit_reg(struct qlcnic_adapter *adapter,
157 u8 mode, int lock)
158 {
159 u32 val;
160 int seconds;
161
162 if (lock) {
163 if (qlcnic_83xx_lock_driver(adapter))
164 return -EBUSY;
165 }
166
167 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_AUDIT);
168 val |= (adapter->portnum & 0xf);
169 val |= mode << 7;
170 if (mode)
171 seconds = jiffies / HZ - adapter->ahw->idc.sec_counter;
172 else
173 seconds = jiffies / HZ;
174
175 val |= seconds << 8;
176 QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_AUDIT, val);
177 adapter->ahw->idc.sec_counter = jiffies / HZ;
178
179 if (lock)
180 qlcnic_83xx_unlock_driver(adapter);
181
182 return 0;
183 }
184
qlcnic_83xx_idc_update_minor_version(struct qlcnic_adapter * adapter)185 static void qlcnic_83xx_idc_update_minor_version(struct qlcnic_adapter *adapter)
186 {
187 u32 val;
188
189 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_MIN_VERSION);
190 val = val & ~(0x3 << (adapter->portnum * 2));
191 val = val | (QLC_83XX_IDC_MINOR_VERSION << (adapter->portnum * 2));
192 QLCWRX(adapter->ahw, QLC_83XX_IDC_MIN_VERSION, val);
193 }
194
qlcnic_83xx_idc_update_major_version(struct qlcnic_adapter * adapter,int lock)195 static int qlcnic_83xx_idc_update_major_version(struct qlcnic_adapter *adapter,
196 int lock)
197 {
198 u32 val;
199
200 if (lock) {
201 if (qlcnic_83xx_lock_driver(adapter))
202 return -EBUSY;
203 }
204
205 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_MAJ_VERSION);
206 val = val & ~0xFF;
207 val = val | QLC_83XX_IDC_MAJOR_VERSION;
208 QLCWRX(adapter->ahw, QLC_83XX_IDC_MAJ_VERSION, val);
209
210 if (lock)
211 qlcnic_83xx_unlock_driver(adapter);
212
213 return 0;
214 }
215
216 static int
qlcnic_83xx_idc_update_drv_presence_reg(struct qlcnic_adapter * adapter,int status,int lock)217 qlcnic_83xx_idc_update_drv_presence_reg(struct qlcnic_adapter *adapter,
218 int status, int lock)
219 {
220 u32 val;
221
222 if (lock) {
223 if (qlcnic_83xx_lock_driver(adapter))
224 return -EBUSY;
225 }
226
227 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE);
228
229 if (status)
230 val = val | (1 << adapter->portnum);
231 else
232 val = val & ~(1 << adapter->portnum);
233
234 QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE, val);
235 qlcnic_83xx_idc_update_minor_version(adapter);
236
237 if (lock)
238 qlcnic_83xx_unlock_driver(adapter);
239
240 return 0;
241 }
242
qlcnic_83xx_idc_check_major_version(struct qlcnic_adapter * adapter)243 static int qlcnic_83xx_idc_check_major_version(struct qlcnic_adapter *adapter)
244 {
245 u32 val;
246 u8 version;
247
248 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_MAJ_VERSION);
249 version = val & 0xFF;
250
251 if (version != QLC_83XX_IDC_MAJOR_VERSION) {
252 dev_info(&adapter->pdev->dev,
253 "%s:mismatch. version 0x%x, expected version 0x%x\n",
254 __func__, version, QLC_83XX_IDC_MAJOR_VERSION);
255 return -EIO;
256 }
257
258 return 0;
259 }
260
qlcnic_83xx_idc_clear_registers(struct qlcnic_adapter * adapter,int lock)261 static int qlcnic_83xx_idc_clear_registers(struct qlcnic_adapter *adapter,
262 int lock)
263 {
264 u32 val;
265
266 if (lock) {
267 if (qlcnic_83xx_lock_driver(adapter))
268 return -EBUSY;
269 }
270
271 QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_ACK, 0);
272 /* Clear graceful reset bit */
273 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
274 val &= ~QLC_83XX_IDC_GRACEFULL_RESET;
275 QLCWRX(adapter->ahw, QLC_83XX_IDC_CTRL, val);
276
277 if (lock)
278 qlcnic_83xx_unlock_driver(adapter);
279
280 return 0;
281 }
282
qlcnic_83xx_idc_update_drv_ack_reg(struct qlcnic_adapter * adapter,int flag,int lock)283 static int qlcnic_83xx_idc_update_drv_ack_reg(struct qlcnic_adapter *adapter,
284 int flag, int lock)
285 {
286 u32 val;
287
288 if (lock) {
289 if (qlcnic_83xx_lock_driver(adapter))
290 return -EBUSY;
291 }
292
293 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_ACK);
294 if (flag)
295 val = val | (1 << adapter->portnum);
296 else
297 val = val & ~(1 << adapter->portnum);
298 QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_ACK, val);
299
300 if (lock)
301 qlcnic_83xx_unlock_driver(adapter);
302
303 return 0;
304 }
305
qlcnic_83xx_idc_check_timeout(struct qlcnic_adapter * adapter,int time_limit)306 static int qlcnic_83xx_idc_check_timeout(struct qlcnic_adapter *adapter,
307 int time_limit)
308 {
309 u64 seconds;
310
311 seconds = jiffies / HZ - adapter->ahw->idc.sec_counter;
312 if (seconds <= time_limit)
313 return 0;
314 else
315 return -EBUSY;
316 }
317
318 /**
319 * qlcnic_83xx_idc_check_reset_ack_reg
320 *
321 * @adapter: adapter structure
322 *
323 * Check ACK wait limit and clear the functions which failed to ACK
324 *
325 * Return 0 if all functions have acknowledged the reset request.
326 **/
qlcnic_83xx_idc_check_reset_ack_reg(struct qlcnic_adapter * adapter)327 static int qlcnic_83xx_idc_check_reset_ack_reg(struct qlcnic_adapter *adapter)
328 {
329 int timeout;
330 u32 ack, presence, val;
331
332 timeout = QLC_83XX_IDC_RESET_TIMEOUT_SECS;
333 ack = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_ACK);
334 presence = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE);
335 dev_info(&adapter->pdev->dev,
336 "%s: ack = 0x%x, presence = 0x%x\n", __func__, ack, presence);
337 if (!((ack & presence) == presence)) {
338 if (qlcnic_83xx_idc_check_timeout(adapter, timeout)) {
339 /* Clear functions which failed to ACK */
340 dev_info(&adapter->pdev->dev,
341 "%s: ACK wait exceeds time limit\n", __func__);
342 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE);
343 val = val & ~(ack ^ presence);
344 if (qlcnic_83xx_lock_driver(adapter))
345 return -EBUSY;
346 QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE, val);
347 dev_info(&adapter->pdev->dev,
348 "%s: updated drv presence reg = 0x%x\n",
349 __func__, val);
350 qlcnic_83xx_unlock_driver(adapter);
351 return 0;
352
353 } else {
354 return 1;
355 }
356 } else {
357 dev_info(&adapter->pdev->dev,
358 "%s: Reset ACK received from all functions\n",
359 __func__);
360 return 0;
361 }
362 }
363
364 /**
365 * qlcnic_83xx_idc_tx_soft_reset
366 *
367 * @adapter: adapter structure
368 *
369 * Handle context deletion and recreation request from transmit routine
370 *
371 * Returns -EBUSY or Success (0)
372 *
373 **/
qlcnic_83xx_idc_tx_soft_reset(struct qlcnic_adapter * adapter)374 static int qlcnic_83xx_idc_tx_soft_reset(struct qlcnic_adapter *adapter)
375 {
376 struct net_device *netdev = adapter->netdev;
377
378 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
379 return -EBUSY;
380
381 netif_device_detach(netdev);
382 qlcnic_down(adapter, netdev);
383 qlcnic_up(adapter, netdev);
384 netif_device_attach(netdev);
385 clear_bit(__QLCNIC_RESETTING, &adapter->state);
386 netdev_info(adapter->netdev, "%s: soft reset complete.\n", __func__);
387
388 return 0;
389 }
390
391 /**
392 * qlcnic_83xx_idc_detach_driver
393 *
394 * @adapter: adapter structure
395 * Detach net interface, stop TX and cleanup resources before the HW reset.
396 * Returns: None
397 *
398 **/
qlcnic_83xx_idc_detach_driver(struct qlcnic_adapter * adapter)399 static void qlcnic_83xx_idc_detach_driver(struct qlcnic_adapter *adapter)
400 {
401 int i;
402 struct net_device *netdev = adapter->netdev;
403
404 netif_device_detach(netdev);
405 qlcnic_83xx_detach_mailbox_work(adapter);
406
407 /* Disable mailbox interrupt */
408 qlcnic_83xx_disable_mbx_intr(adapter);
409 qlcnic_down(adapter, netdev);
410 for (i = 0; i < adapter->ahw->num_msix; i++) {
411 adapter->ahw->intr_tbl[i].id = i;
412 adapter->ahw->intr_tbl[i].enabled = 0;
413 adapter->ahw->intr_tbl[i].src = 0;
414 }
415
416 if (qlcnic_sriov_pf_check(adapter))
417 qlcnic_sriov_pf_reset(adapter);
418 }
419
420 /**
421 * qlcnic_83xx_idc_attach_driver
422 *
423 * @adapter: adapter structure
424 *
425 * Re-attach and re-enable net interface
426 * Returns: None
427 *
428 **/
qlcnic_83xx_idc_attach_driver(struct qlcnic_adapter * adapter)429 static void qlcnic_83xx_idc_attach_driver(struct qlcnic_adapter *adapter)
430 {
431 struct net_device *netdev = adapter->netdev;
432
433 if (netif_running(netdev)) {
434 if (qlcnic_up(adapter, netdev))
435 goto done;
436 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
437 }
438 done:
439 netif_device_attach(netdev);
440 }
441
qlcnic_83xx_idc_enter_failed_state(struct qlcnic_adapter * adapter,int lock)442 static int qlcnic_83xx_idc_enter_failed_state(struct qlcnic_adapter *adapter,
443 int lock)
444 {
445 if (lock) {
446 if (qlcnic_83xx_lock_driver(adapter))
447 return -EBUSY;
448 }
449
450 qlcnic_83xx_idc_clear_registers(adapter, 0);
451 QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE, QLC_83XX_IDC_DEV_FAILED);
452 if (lock)
453 qlcnic_83xx_unlock_driver(adapter);
454
455 qlcnic_83xx_idc_log_state_history(adapter);
456 dev_info(&adapter->pdev->dev, "Device will enter failed state\n");
457
458 return 0;
459 }
460
qlcnic_83xx_idc_enter_init_state(struct qlcnic_adapter * adapter,int lock)461 static int qlcnic_83xx_idc_enter_init_state(struct qlcnic_adapter *adapter,
462 int lock)
463 {
464 if (lock) {
465 if (qlcnic_83xx_lock_driver(adapter))
466 return -EBUSY;
467 }
468
469 QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE, QLC_83XX_IDC_DEV_INIT);
470
471 if (lock)
472 qlcnic_83xx_unlock_driver(adapter);
473
474 return 0;
475 }
476
qlcnic_83xx_idc_enter_need_quiesce(struct qlcnic_adapter * adapter,int lock)477 static int qlcnic_83xx_idc_enter_need_quiesce(struct qlcnic_adapter *adapter,
478 int lock)
479 {
480 if (lock) {
481 if (qlcnic_83xx_lock_driver(adapter))
482 return -EBUSY;
483 }
484
485 QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE,
486 QLC_83XX_IDC_DEV_NEED_QUISCENT);
487
488 if (lock)
489 qlcnic_83xx_unlock_driver(adapter);
490
491 return 0;
492 }
493
494 static int
qlcnic_83xx_idc_enter_need_reset_state(struct qlcnic_adapter * adapter,int lock)495 qlcnic_83xx_idc_enter_need_reset_state(struct qlcnic_adapter *adapter, int lock)
496 {
497 if (lock) {
498 if (qlcnic_83xx_lock_driver(adapter))
499 return -EBUSY;
500 }
501
502 QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE,
503 QLC_83XX_IDC_DEV_NEED_RESET);
504
505 if (lock)
506 qlcnic_83xx_unlock_driver(adapter);
507
508 return 0;
509 }
510
qlcnic_83xx_idc_enter_ready_state(struct qlcnic_adapter * adapter,int lock)511 static int qlcnic_83xx_idc_enter_ready_state(struct qlcnic_adapter *adapter,
512 int lock)
513 {
514 if (lock) {
515 if (qlcnic_83xx_lock_driver(adapter))
516 return -EBUSY;
517 }
518
519 QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE, QLC_83XX_IDC_DEV_READY);
520 if (lock)
521 qlcnic_83xx_unlock_driver(adapter);
522
523 return 0;
524 }
525
526 /**
527 * qlcnic_83xx_idc_find_reset_owner_id
528 *
529 * @adapter: adapter structure
530 *
531 * NIC gets precedence over ISCSI and ISCSI has precedence over FCOE.
532 * Within the same class, function with lowest PCI ID assumes ownership
533 *
534 * Returns: reset owner id or failure indication (-EIO)
535 *
536 **/
qlcnic_83xx_idc_find_reset_owner_id(struct qlcnic_adapter * adapter)537 static int qlcnic_83xx_idc_find_reset_owner_id(struct qlcnic_adapter *adapter)
538 {
539 u32 reg, reg1, reg2, i, j, owner, class;
540
541 reg1 = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_PARTITION_INFO_1);
542 reg2 = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_PARTITION_INFO_2);
543 owner = QLCNIC_TYPE_NIC;
544 i = 0;
545 j = 0;
546 reg = reg1;
547
548 do {
549 class = (((reg & (0xF << j * 4)) >> j * 4) & 0x3);
550 if (class == owner)
551 break;
552 if (i == (QLC_83XX_IDC_MAX_FUNC_PER_PARTITION_INFO - 1)) {
553 reg = reg2;
554 j = 0;
555 } else {
556 j++;
557 }
558
559 if (i == (QLC_83XX_IDC_MAX_CNA_FUNCTIONS - 1)) {
560 if (owner == QLCNIC_TYPE_NIC)
561 owner = QLCNIC_TYPE_ISCSI;
562 else if (owner == QLCNIC_TYPE_ISCSI)
563 owner = QLCNIC_TYPE_FCOE;
564 else if (owner == QLCNIC_TYPE_FCOE)
565 return -EIO;
566 reg = reg1;
567 j = 0;
568 i = 0;
569 }
570 } while (i++ < QLC_83XX_IDC_MAX_CNA_FUNCTIONS);
571
572 return i;
573 }
574
qlcnic_83xx_idc_restart_hw(struct qlcnic_adapter * adapter,int lock)575 static int qlcnic_83xx_idc_restart_hw(struct qlcnic_adapter *adapter, int lock)
576 {
577 int ret = 0;
578
579 ret = qlcnic_83xx_restart_hw(adapter);
580
581 if (ret) {
582 qlcnic_83xx_idc_enter_failed_state(adapter, lock);
583 } else {
584 qlcnic_83xx_idc_clear_registers(adapter, lock);
585 ret = qlcnic_83xx_idc_enter_ready_state(adapter, lock);
586 }
587
588 return ret;
589 }
590
qlcnic_83xx_idc_check_fan_failure(struct qlcnic_adapter * adapter)591 static int qlcnic_83xx_idc_check_fan_failure(struct qlcnic_adapter *adapter)
592 {
593 u32 status;
594
595 status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
596
597 if (status & QLCNIC_RCODE_FATAL_ERROR) {
598 dev_err(&adapter->pdev->dev,
599 "peg halt status1=0x%x\n", status);
600 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
601 dev_err(&adapter->pdev->dev,
602 "On board active cooling fan failed. "
603 "Device has been halted.\n");
604 dev_err(&adapter->pdev->dev,
605 "Replace the adapter.\n");
606 return -EIO;
607 }
608 }
609
610 return 0;
611 }
612
qlcnic_83xx_idc_reattach_driver(struct qlcnic_adapter * adapter)613 int qlcnic_83xx_idc_reattach_driver(struct qlcnic_adapter *adapter)
614 {
615 int err;
616
617 qlcnic_83xx_reinit_mbx_work(adapter->ahw->mailbox);
618 qlcnic_83xx_enable_mbx_interrupt(adapter);
619
620 qlcnic_83xx_initialize_nic(adapter, 1);
621
622 err = qlcnic_sriov_pf_reinit(adapter);
623 if (err)
624 return err;
625
626 qlcnic_83xx_enable_mbx_interrupt(adapter);
627
628 if (qlcnic_83xx_configure_opmode(adapter)) {
629 qlcnic_83xx_idc_enter_failed_state(adapter, 1);
630 return -EIO;
631 }
632
633 if (adapter->nic_ops->init_driver(adapter)) {
634 qlcnic_83xx_idc_enter_failed_state(adapter, 1);
635 return -EIO;
636 }
637
638 if (adapter->portnum == 0)
639 qlcnic_set_drv_version(adapter);
640
641 qlcnic_dcb_get_info(adapter->dcb);
642 qlcnic_83xx_idc_attach_driver(adapter);
643
644 return 0;
645 }
646
qlcnic_83xx_idc_update_idc_params(struct qlcnic_adapter * adapter)647 static void qlcnic_83xx_idc_update_idc_params(struct qlcnic_adapter *adapter)
648 {
649 struct qlcnic_hardware_context *ahw = adapter->ahw;
650
651 qlcnic_83xx_idc_update_drv_presence_reg(adapter, 1, 1);
652 qlcnic_83xx_idc_update_audit_reg(adapter, 0, 1);
653 set_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status);
654
655 ahw->idc.quiesce_req = 0;
656 ahw->idc.delay = QLC_83XX_IDC_FW_POLL_DELAY;
657 ahw->idc.err_code = 0;
658 ahw->idc.collect_dump = 0;
659 ahw->reset_context = 0;
660 adapter->tx_timeo_cnt = 0;
661 ahw->idc.delay_reset = 0;
662
663 clear_bit(__QLCNIC_RESETTING, &adapter->state);
664 }
665
666 /**
667 * qlcnic_83xx_idc_ready_state_entry
668 *
669 * @adapter: adapter structure
670 *
671 * Perform ready state initialization, this routine will get invoked only
672 * once from READY state.
673 *
674 * Returns: Error code or Success(0)
675 *
676 **/
qlcnic_83xx_idc_ready_state_entry(struct qlcnic_adapter * adapter)677 int qlcnic_83xx_idc_ready_state_entry(struct qlcnic_adapter *adapter)
678 {
679 struct qlcnic_hardware_context *ahw = adapter->ahw;
680
681 if (ahw->idc.prev_state != QLC_83XX_IDC_DEV_READY) {
682 qlcnic_83xx_idc_update_idc_params(adapter);
683 /* Re-attach the device if required */
684 if ((ahw->idc.prev_state == QLC_83XX_IDC_DEV_NEED_RESET) ||
685 (ahw->idc.prev_state == QLC_83XX_IDC_DEV_INIT)) {
686 if (qlcnic_83xx_idc_reattach_driver(adapter))
687 return -EIO;
688 }
689 }
690
691 return 0;
692 }
693
694 /**
695 * qlcnic_83xx_idc_vnic_pf_entry
696 *
697 * @adapter: adapter structure
698 *
699 * Ensure vNIC mode privileged function starts only after vNIC mode is
700 * enabled by management function.
701 * If vNIC mode is ready, start initialization.
702 *
703 * Returns: -EIO or 0
704 *
705 **/
qlcnic_83xx_idc_vnic_pf_entry(struct qlcnic_adapter * adapter)706 int qlcnic_83xx_idc_vnic_pf_entry(struct qlcnic_adapter *adapter)
707 {
708 u32 state;
709 struct qlcnic_hardware_context *ahw = adapter->ahw;
710
711 /* Privileged function waits till mgmt function enables VNIC mode */
712 state = QLCRDX(adapter->ahw, QLC_83XX_VNIC_STATE);
713 if (state != QLCNIC_DEV_NPAR_OPER) {
714 if (!ahw->idc.vnic_wait_limit--) {
715 qlcnic_83xx_idc_enter_failed_state(adapter, 1);
716 return -EIO;
717 }
718 dev_info(&adapter->pdev->dev, "vNIC mode disabled\n");
719 return -EIO;
720
721 } else {
722 /* Perform one time initialization from ready state */
723 if (ahw->idc.vnic_state != QLCNIC_DEV_NPAR_OPER) {
724 qlcnic_83xx_idc_update_idc_params(adapter);
725
726 /* If the previous state is UNKNOWN, device will be
727 already attached properly by Init routine*/
728 if (ahw->idc.prev_state != QLC_83XX_IDC_DEV_UNKNOWN) {
729 if (qlcnic_83xx_idc_reattach_driver(adapter))
730 return -EIO;
731 }
732 adapter->ahw->idc.vnic_state = QLCNIC_DEV_NPAR_OPER;
733 dev_info(&adapter->pdev->dev, "vNIC mode enabled\n");
734 }
735 }
736
737 return 0;
738 }
739
qlcnic_83xx_idc_unknown_state(struct qlcnic_adapter * adapter)740 static int qlcnic_83xx_idc_unknown_state(struct qlcnic_adapter *adapter)
741 {
742 adapter->ahw->idc.err_code = -EIO;
743 dev_err(&adapter->pdev->dev,
744 "%s: Device in unknown state\n", __func__);
745 clear_bit(__QLCNIC_RESETTING, &adapter->state);
746 return 0;
747 }
748
749 /**
750 * qlcnic_83xx_idc_cold_state
751 *
752 * @adapter: adapter structure
753 *
754 * If HW is up and running device will enter READY state.
755 * If firmware image from host needs to be loaded, device is
756 * forced to start with the file firmware image.
757 *
758 * Returns: Error code or Success(0)
759 *
760 **/
qlcnic_83xx_idc_cold_state_handler(struct qlcnic_adapter * adapter)761 static int qlcnic_83xx_idc_cold_state_handler(struct qlcnic_adapter *adapter)
762 {
763 qlcnic_83xx_idc_update_drv_presence_reg(adapter, 1, 0);
764 qlcnic_83xx_idc_update_audit_reg(adapter, 1, 0);
765
766 if (qlcnic_load_fw_file) {
767 qlcnic_83xx_idc_restart_hw(adapter, 0);
768 } else {
769 if (qlcnic_83xx_check_hw_status(adapter)) {
770 qlcnic_83xx_idc_enter_failed_state(adapter, 0);
771 return -EIO;
772 } else {
773 qlcnic_83xx_idc_enter_ready_state(adapter, 0);
774 }
775 }
776 return 0;
777 }
778
779 /**
780 * qlcnic_83xx_idc_init_state
781 *
782 * @adapter: adapter structure
783 *
784 * Reset owner will restart the device from this state.
785 * Device will enter failed state if it remains
786 * in this state for more than DEV_INIT time limit.
787 *
788 * Returns: Error code or Success(0)
789 *
790 **/
qlcnic_83xx_idc_init_state(struct qlcnic_adapter * adapter)791 static int qlcnic_83xx_idc_init_state(struct qlcnic_adapter *adapter)
792 {
793 int timeout, ret = 0;
794 u32 owner;
795
796 timeout = QLC_83XX_IDC_INIT_TIMEOUT_SECS;
797 if (adapter->ahw->idc.prev_state == QLC_83XX_IDC_DEV_NEED_RESET) {
798 owner = qlcnic_83xx_idc_find_reset_owner_id(adapter);
799 if (adapter->ahw->pci_func == owner)
800 ret = qlcnic_83xx_idc_restart_hw(adapter, 1);
801 } else {
802 ret = qlcnic_83xx_idc_check_timeout(adapter, timeout);
803 }
804
805 return ret;
806 }
807
808 /**
809 * qlcnic_83xx_idc_ready_state
810 *
811 * @adapter: adapter structure
812 *
813 * Perform IDC protocol specicifed actions after monitoring device state and
814 * events.
815 *
816 * Returns: Error code or Success(0)
817 *
818 **/
qlcnic_83xx_idc_ready_state(struct qlcnic_adapter * adapter)819 static int qlcnic_83xx_idc_ready_state(struct qlcnic_adapter *adapter)
820 {
821 struct qlcnic_hardware_context *ahw = adapter->ahw;
822 struct qlcnic_mailbox *mbx = ahw->mailbox;
823 int ret = 0;
824 u32 val;
825
826 /* Perform NIC configuration based ready state entry actions */
827 if (ahw->idc.state_entry(adapter))
828 return -EIO;
829
830 if (qlcnic_check_temp(adapter)) {
831 if (ahw->temp == QLCNIC_TEMP_PANIC) {
832 qlcnic_83xx_idc_check_fan_failure(adapter);
833 dev_err(&adapter->pdev->dev,
834 "Error: device temperature %d above limits\n",
835 adapter->ahw->temp);
836 clear_bit(QLC_83XX_MBX_READY, &mbx->status);
837 set_bit(__QLCNIC_RESETTING, &adapter->state);
838 qlcnic_83xx_idc_detach_driver(adapter);
839 qlcnic_83xx_idc_enter_failed_state(adapter, 1);
840 return -EIO;
841 }
842 }
843
844 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
845 ret = qlcnic_83xx_check_heartbeat(adapter);
846 if (ret) {
847 adapter->flags |= QLCNIC_FW_HANG;
848 if (!(val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY)) {
849 clear_bit(QLC_83XX_MBX_READY, &mbx->status);
850 set_bit(__QLCNIC_RESETTING, &adapter->state);
851 qlcnic_83xx_idc_enter_need_reset_state(adapter, 1);
852 } else {
853 netdev_info(adapter->netdev, "%s: Auto firmware recovery is disabled\n",
854 __func__);
855 qlcnic_83xx_idc_enter_failed_state(adapter, 1);
856 }
857 return -EIO;
858 }
859
860 if ((val & QLC_83XX_IDC_GRACEFULL_RESET) || ahw->idc.collect_dump) {
861 clear_bit(QLC_83XX_MBX_READY, &mbx->status);
862
863 /* Move to need reset state and prepare for reset */
864 qlcnic_83xx_idc_enter_need_reset_state(adapter, 1);
865 return ret;
866 }
867
868 /* Check for soft reset request */
869 if (ahw->reset_context &&
870 !(val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY)) {
871 adapter->ahw->reset_context = 0;
872 qlcnic_83xx_idc_tx_soft_reset(adapter);
873 return ret;
874 }
875
876 /* Move to need quiesce state if requested */
877 if (adapter->ahw->idc.quiesce_req) {
878 qlcnic_83xx_idc_enter_need_quiesce(adapter, 1);
879 qlcnic_83xx_idc_update_audit_reg(adapter, 0, 1);
880 return ret;
881 }
882
883 return ret;
884 }
885
886 /**
887 * qlcnic_83xx_idc_need_reset_state
888 *
889 * @adapter: adapter structure
890 *
891 * Device will remain in this state until:
892 * Reset request ACK's are received from all the functions
893 * Wait time exceeds max time limit
894 *
895 * Returns: Error code or Success(0)
896 *
897 **/
qlcnic_83xx_idc_need_reset_state(struct qlcnic_adapter * adapter)898 static int qlcnic_83xx_idc_need_reset_state(struct qlcnic_adapter *adapter)
899 {
900 struct qlcnic_mailbox *mbx = adapter->ahw->mailbox;
901 int ret = 0;
902
903 if (adapter->ahw->idc.prev_state != QLC_83XX_IDC_DEV_NEED_RESET) {
904 qlcnic_83xx_idc_update_audit_reg(adapter, 0, 1);
905 set_bit(__QLCNIC_RESETTING, &adapter->state);
906 clear_bit(QLC_83XX_MBX_READY, &mbx->status);
907 if (adapter->ahw->nic_mode == QLCNIC_VNIC_MODE)
908 qlcnic_83xx_disable_vnic_mode(adapter, 1);
909
910 if (qlcnic_check_diag_status(adapter)) {
911 dev_info(&adapter->pdev->dev,
912 "%s: Wait for diag completion\n", __func__);
913 adapter->ahw->idc.delay_reset = 1;
914 return 0;
915 } else {
916 qlcnic_83xx_idc_update_drv_ack_reg(adapter, 1, 1);
917 qlcnic_83xx_idc_detach_driver(adapter);
918 }
919 }
920
921 if (qlcnic_check_diag_status(adapter)) {
922 dev_info(&adapter->pdev->dev,
923 "%s: Wait for diag completion\n", __func__);
924 return -1;
925 } else {
926 if (adapter->ahw->idc.delay_reset) {
927 qlcnic_83xx_idc_update_drv_ack_reg(adapter, 1, 1);
928 qlcnic_83xx_idc_detach_driver(adapter);
929 adapter->ahw->idc.delay_reset = 0;
930 }
931
932 /* Check for ACK from other functions */
933 ret = qlcnic_83xx_idc_check_reset_ack_reg(adapter);
934 if (ret) {
935 dev_info(&adapter->pdev->dev,
936 "%s: Waiting for reset ACK\n", __func__);
937 return -1;
938 }
939 }
940
941 /* Transit to INIT state and restart the HW */
942 qlcnic_83xx_idc_enter_init_state(adapter, 1);
943
944 return ret;
945 }
946
qlcnic_83xx_idc_need_quiesce_state(struct qlcnic_adapter * adapter)947 static int qlcnic_83xx_idc_need_quiesce_state(struct qlcnic_adapter *adapter)
948 {
949 dev_err(&adapter->pdev->dev, "%s: TBD\n", __func__);
950 return 0;
951 }
952
qlcnic_83xx_idc_failed_state(struct qlcnic_adapter * adapter)953 static void qlcnic_83xx_idc_failed_state(struct qlcnic_adapter *adapter)
954 {
955 struct qlcnic_hardware_context *ahw = adapter->ahw;
956 u32 val, owner;
957
958 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
959 if (val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY) {
960 owner = qlcnic_83xx_idc_find_reset_owner_id(adapter);
961 if (ahw->pci_func == owner) {
962 qlcnic_83xx_stop_hw(adapter);
963 qlcnic_dump_fw(adapter);
964 }
965 }
966
967 netdev_warn(adapter->netdev, "%s: Reboot will be required to recover the adapter!!\n",
968 __func__);
969 clear_bit(__QLCNIC_RESETTING, &adapter->state);
970 ahw->idc.err_code = -EIO;
971
972 return;
973 }
974
qlcnic_83xx_idc_quiesce_state(struct qlcnic_adapter * adapter)975 static int qlcnic_83xx_idc_quiesce_state(struct qlcnic_adapter *adapter)
976 {
977 dev_info(&adapter->pdev->dev, "%s: TBD\n", __func__);
978 return 0;
979 }
980
qlcnic_83xx_idc_check_state_validity(struct qlcnic_adapter * adapter,u32 state)981 static int qlcnic_83xx_idc_check_state_validity(struct qlcnic_adapter *adapter,
982 u32 state)
983 {
984 u32 cur, prev, next;
985
986 cur = adapter->ahw->idc.curr_state;
987 prev = adapter->ahw->idc.prev_state;
988 next = state;
989
990 if ((next < QLC_83XX_IDC_DEV_COLD) ||
991 (next > QLC_83XX_IDC_DEV_QUISCENT)) {
992 dev_err(&adapter->pdev->dev,
993 "%s: curr %d, prev %d, next state %d is invalid\n",
994 __func__, cur, prev, state);
995 return 1;
996 }
997
998 if ((cur == QLC_83XX_IDC_DEV_UNKNOWN) &&
999 (prev == QLC_83XX_IDC_DEV_UNKNOWN)) {
1000 if ((next != QLC_83XX_IDC_DEV_COLD) &&
1001 (next != QLC_83XX_IDC_DEV_READY)) {
1002 dev_err(&adapter->pdev->dev,
1003 "%s: failed, cur %d prev %d next %d\n",
1004 __func__, cur, prev, next);
1005 return 1;
1006 }
1007 }
1008
1009 if (next == QLC_83XX_IDC_DEV_INIT) {
1010 if ((prev != QLC_83XX_IDC_DEV_INIT) &&
1011 (prev != QLC_83XX_IDC_DEV_COLD) &&
1012 (prev != QLC_83XX_IDC_DEV_NEED_RESET)) {
1013 dev_err(&adapter->pdev->dev,
1014 "%s: failed, cur %d prev %d next %d\n",
1015 __func__, cur, prev, next);
1016 return 1;
1017 }
1018 }
1019
1020 return 0;
1021 }
1022
1023 #define QLC_83XX_ENCAP_TYPE_VXLAN BIT_1
1024 #define QLC_83XX_MATCH_ENCAP_ID BIT_2
1025 #define QLC_83XX_SET_VXLAN_UDP_DPORT BIT_3
1026 #define QLC_83XX_VXLAN_UDP_DPORT(PORT) ((PORT & 0xffff) << 16)
1027
1028 #define QLCNIC_ENABLE_INGRESS_ENCAP_PARSING 1
1029 #define QLCNIC_DISABLE_INGRESS_ENCAP_PARSING 0
1030
qlcnic_set_vxlan_port(struct qlcnic_adapter * adapter)1031 static int qlcnic_set_vxlan_port(struct qlcnic_adapter *adapter)
1032 {
1033 u16 port = adapter->ahw->vxlan_port;
1034 struct qlcnic_cmd_args cmd;
1035 int ret = 0;
1036
1037 memset(&cmd, 0, sizeof(cmd));
1038
1039 ret = qlcnic_alloc_mbx_args(&cmd, adapter,
1040 QLCNIC_CMD_INIT_NIC_FUNC);
1041 if (ret)
1042 return ret;
1043
1044 cmd.req.arg[1] = QLC_83XX_MULTI_TENANCY_INFO;
1045 cmd.req.arg[2] = QLC_83XX_ENCAP_TYPE_VXLAN |
1046 QLC_83XX_SET_VXLAN_UDP_DPORT |
1047 QLC_83XX_VXLAN_UDP_DPORT(port);
1048
1049 ret = qlcnic_issue_cmd(adapter, &cmd);
1050 if (ret)
1051 netdev_err(adapter->netdev,
1052 "Failed to set VXLAN port %d in adapter\n",
1053 port);
1054
1055 qlcnic_free_mbx_args(&cmd);
1056
1057 return ret;
1058 }
1059
qlcnic_set_vxlan_parsing(struct qlcnic_adapter * adapter,bool state)1060 static int qlcnic_set_vxlan_parsing(struct qlcnic_adapter *adapter,
1061 bool state)
1062 {
1063 u16 vxlan_port = adapter->ahw->vxlan_port;
1064 struct qlcnic_cmd_args cmd;
1065 int ret = 0;
1066
1067 memset(&cmd, 0, sizeof(cmd));
1068
1069 ret = qlcnic_alloc_mbx_args(&cmd, adapter,
1070 QLCNIC_CMD_SET_INGRESS_ENCAP);
1071 if (ret)
1072 return ret;
1073
1074 cmd.req.arg[1] = state ? QLCNIC_ENABLE_INGRESS_ENCAP_PARSING :
1075 QLCNIC_DISABLE_INGRESS_ENCAP_PARSING;
1076
1077 ret = qlcnic_issue_cmd(adapter, &cmd);
1078 if (ret)
1079 netdev_err(adapter->netdev,
1080 "Failed to %s VXLAN parsing for port %d\n",
1081 state ? "enable" : "disable", vxlan_port);
1082 else
1083 netdev_info(adapter->netdev,
1084 "%s VXLAN parsing for port %d\n",
1085 state ? "Enabled" : "Disabled", vxlan_port);
1086
1087 qlcnic_free_mbx_args(&cmd);
1088
1089 return ret;
1090 }
1091
qlcnic_83xx_periodic_tasks(struct qlcnic_adapter * adapter)1092 static void qlcnic_83xx_periodic_tasks(struct qlcnic_adapter *adapter)
1093 {
1094 if (adapter->fhash.fnum)
1095 qlcnic_prune_lb_filters(adapter);
1096
1097 if (adapter->flags & QLCNIC_ADD_VXLAN_PORT) {
1098 if (qlcnic_set_vxlan_port(adapter))
1099 return;
1100
1101 if (qlcnic_set_vxlan_parsing(adapter, true))
1102 return;
1103
1104 adapter->flags &= ~QLCNIC_ADD_VXLAN_PORT;
1105 } else if (adapter->flags & QLCNIC_DEL_VXLAN_PORT) {
1106 if (qlcnic_set_vxlan_parsing(adapter, false))
1107 return;
1108
1109 adapter->ahw->vxlan_port = 0;
1110 adapter->flags &= ~QLCNIC_DEL_VXLAN_PORT;
1111 }
1112 }
1113
1114 /**
1115 * qlcnic_83xx_idc_poll_dev_state
1116 *
1117 * @work: kernel work queue structure used to schedule the function
1118 *
1119 * Poll device state periodically and perform state specific
1120 * actions defined by Inter Driver Communication (IDC) protocol.
1121 *
1122 * Returns: None
1123 *
1124 **/
qlcnic_83xx_idc_poll_dev_state(struct work_struct * work)1125 void qlcnic_83xx_idc_poll_dev_state(struct work_struct *work)
1126 {
1127 struct qlcnic_adapter *adapter;
1128 u32 state;
1129
1130 adapter = container_of(work, struct qlcnic_adapter, fw_work.work);
1131 state = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_STATE);
1132
1133 if (qlcnic_83xx_idc_check_state_validity(adapter, state)) {
1134 qlcnic_83xx_idc_log_state_history(adapter);
1135 adapter->ahw->idc.curr_state = QLC_83XX_IDC_DEV_UNKNOWN;
1136 } else {
1137 adapter->ahw->idc.curr_state = state;
1138 }
1139
1140 switch (adapter->ahw->idc.curr_state) {
1141 case QLC_83XX_IDC_DEV_READY:
1142 qlcnic_83xx_idc_ready_state(adapter);
1143 break;
1144 case QLC_83XX_IDC_DEV_NEED_RESET:
1145 qlcnic_83xx_idc_need_reset_state(adapter);
1146 break;
1147 case QLC_83XX_IDC_DEV_NEED_QUISCENT:
1148 qlcnic_83xx_idc_need_quiesce_state(adapter);
1149 break;
1150 case QLC_83XX_IDC_DEV_FAILED:
1151 qlcnic_83xx_idc_failed_state(adapter);
1152 return;
1153 case QLC_83XX_IDC_DEV_INIT:
1154 qlcnic_83xx_idc_init_state(adapter);
1155 break;
1156 case QLC_83XX_IDC_DEV_QUISCENT:
1157 qlcnic_83xx_idc_quiesce_state(adapter);
1158 break;
1159 default:
1160 qlcnic_83xx_idc_unknown_state(adapter);
1161 return;
1162 }
1163 adapter->ahw->idc.prev_state = adapter->ahw->idc.curr_state;
1164 qlcnic_83xx_periodic_tasks(adapter);
1165
1166 /* Re-schedule the function */
1167 if (test_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status))
1168 qlcnic_schedule_work(adapter, qlcnic_83xx_idc_poll_dev_state,
1169 adapter->ahw->idc.delay);
1170 }
1171
qlcnic_83xx_setup_idc_parameters(struct qlcnic_adapter * adapter)1172 static void qlcnic_83xx_setup_idc_parameters(struct qlcnic_adapter *adapter)
1173 {
1174 u32 idc_params, val;
1175
1176 if (qlcnic_83xx_flash_read32(adapter, QLC_83XX_IDC_FLASH_PARAM_ADDR,
1177 (u8 *)&idc_params, 1)) {
1178 dev_info(&adapter->pdev->dev,
1179 "%s:failed to get IDC params from flash\n", __func__);
1180 adapter->dev_init_timeo = QLC_83XX_IDC_INIT_TIMEOUT_SECS;
1181 adapter->reset_ack_timeo = QLC_83XX_IDC_RESET_TIMEOUT_SECS;
1182 } else {
1183 adapter->dev_init_timeo = idc_params & 0xFFFF;
1184 adapter->reset_ack_timeo = ((idc_params >> 16) & 0xFFFF);
1185 }
1186
1187 adapter->ahw->idc.curr_state = QLC_83XX_IDC_DEV_UNKNOWN;
1188 adapter->ahw->idc.prev_state = QLC_83XX_IDC_DEV_UNKNOWN;
1189 adapter->ahw->idc.delay = QLC_83XX_IDC_FW_POLL_DELAY;
1190 adapter->ahw->idc.err_code = 0;
1191 adapter->ahw->idc.collect_dump = 0;
1192 adapter->ahw->idc.name = (char **)qlc_83xx_idc_states;
1193
1194 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1195 set_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status);
1196
1197 /* Check if reset recovery is disabled */
1198 if (!qlcnic_auto_fw_reset) {
1199 /* Propagate do not reset request to other functions */
1200 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
1201 val = val | QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY;
1202 QLCWRX(adapter->ahw, QLC_83XX_IDC_CTRL, val);
1203 }
1204 }
1205
1206 static int
qlcnic_83xx_idc_first_to_load_function_handler(struct qlcnic_adapter * adapter)1207 qlcnic_83xx_idc_first_to_load_function_handler(struct qlcnic_adapter *adapter)
1208 {
1209 u32 state, val;
1210
1211 if (qlcnic_83xx_lock_driver(adapter))
1212 return -EIO;
1213
1214 /* Clear driver lock register */
1215 QLCWRX(adapter->ahw, QLC_83XX_RECOVER_DRV_LOCK, 0);
1216 if (qlcnic_83xx_idc_update_major_version(adapter, 0)) {
1217 qlcnic_83xx_unlock_driver(adapter);
1218 return -EIO;
1219 }
1220
1221 state = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_STATE);
1222 if (qlcnic_83xx_idc_check_state_validity(adapter, state)) {
1223 qlcnic_83xx_unlock_driver(adapter);
1224 return -EIO;
1225 }
1226
1227 if (state != QLC_83XX_IDC_DEV_COLD && qlcnic_load_fw_file) {
1228 QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE,
1229 QLC_83XX_IDC_DEV_COLD);
1230 state = QLC_83XX_IDC_DEV_COLD;
1231 }
1232
1233 adapter->ahw->idc.curr_state = state;
1234 /* First to load function should cold boot the device */
1235 if (state == QLC_83XX_IDC_DEV_COLD)
1236 qlcnic_83xx_idc_cold_state_handler(adapter);
1237
1238 /* Check if reset recovery is enabled */
1239 if (qlcnic_auto_fw_reset) {
1240 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
1241 val = val & ~QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY;
1242 QLCWRX(adapter->ahw, QLC_83XX_IDC_CTRL, val);
1243 }
1244
1245 qlcnic_83xx_unlock_driver(adapter);
1246
1247 return 0;
1248 }
1249
qlcnic_83xx_idc_init(struct qlcnic_adapter * adapter)1250 int qlcnic_83xx_idc_init(struct qlcnic_adapter *adapter)
1251 {
1252 int ret = -EIO;
1253
1254 qlcnic_83xx_setup_idc_parameters(adapter);
1255
1256 if (qlcnic_83xx_get_reset_instruction_template(adapter))
1257 return ret;
1258
1259 if (!qlcnic_83xx_idc_check_driver_presence_reg(adapter)) {
1260 if (qlcnic_83xx_idc_first_to_load_function_handler(adapter))
1261 return -EIO;
1262 } else {
1263 if (qlcnic_83xx_idc_check_major_version(adapter))
1264 return -EIO;
1265 }
1266
1267 qlcnic_83xx_idc_update_audit_reg(adapter, 0, 1);
1268
1269 return 0;
1270 }
1271
qlcnic_83xx_idc_exit(struct qlcnic_adapter * adapter)1272 void qlcnic_83xx_idc_exit(struct qlcnic_adapter *adapter)
1273 {
1274 int id;
1275 u32 val;
1276
1277 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1278 usleep_range(10000, 11000);
1279
1280 id = QLCRDX(adapter->ahw, QLC_83XX_DRV_LOCK_ID);
1281 id = id & 0xFF;
1282
1283 if (id == adapter->portnum) {
1284 dev_err(&adapter->pdev->dev,
1285 "%s: wait for lock recovery.. %d\n", __func__, id);
1286 msleep(20);
1287 id = QLCRDX(adapter->ahw, QLC_83XX_DRV_LOCK_ID);
1288 id = id & 0xFF;
1289 }
1290
1291 /* Clear driver presence bit */
1292 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE);
1293 val = val & ~(1 << adapter->portnum);
1294 QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE, val);
1295 clear_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status);
1296 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1297
1298 cancel_delayed_work_sync(&adapter->fw_work);
1299 }
1300
qlcnic_83xx_idc_request_reset(struct qlcnic_adapter * adapter,u32 key)1301 void qlcnic_83xx_idc_request_reset(struct qlcnic_adapter *adapter, u32 key)
1302 {
1303 u32 val;
1304
1305 if (qlcnic_sriov_vf_check(adapter))
1306 return;
1307
1308 if (qlcnic_83xx_lock_driver(adapter)) {
1309 dev_err(&adapter->pdev->dev,
1310 "%s:failed, please retry\n", __func__);
1311 return;
1312 }
1313
1314 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
1315 if (val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY) {
1316 netdev_info(adapter->netdev, "%s: Auto firmware recovery is disabled\n",
1317 __func__);
1318 qlcnic_83xx_idc_enter_failed_state(adapter, 0);
1319 qlcnic_83xx_unlock_driver(adapter);
1320 return;
1321 }
1322
1323 if (key == QLCNIC_FORCE_FW_RESET) {
1324 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
1325 val = val | QLC_83XX_IDC_GRACEFULL_RESET;
1326 QLCWRX(adapter->ahw, QLC_83XX_IDC_CTRL, val);
1327 } else if (key == QLCNIC_FORCE_FW_DUMP_KEY) {
1328 adapter->ahw->idc.collect_dump = 1;
1329 }
1330
1331 qlcnic_83xx_unlock_driver(adapter);
1332 return;
1333 }
1334
qlcnic_83xx_copy_bootloader(struct qlcnic_adapter * adapter)1335 static int qlcnic_83xx_copy_bootloader(struct qlcnic_adapter *adapter)
1336 {
1337 u8 *p_cache;
1338 u32 src, size;
1339 u64 dest;
1340 int ret = -EIO;
1341
1342 src = QLC_83XX_BOOTLOADER_FLASH_ADDR;
1343 dest = QLCRDX(adapter->ahw, QLCNIC_BOOTLOADER_ADDR);
1344 size = QLCRDX(adapter->ahw, QLCNIC_BOOTLOADER_SIZE);
1345
1346 /* alignment check */
1347 if (size & 0xF)
1348 size = (size + 16) & ~0xF;
1349
1350 p_cache = vzalloc(size);
1351 if (p_cache == NULL)
1352 return -ENOMEM;
1353
1354 ret = qlcnic_83xx_lockless_flash_read32(adapter, src, p_cache,
1355 size / sizeof(u32));
1356 if (ret) {
1357 vfree(p_cache);
1358 return ret;
1359 }
1360 /* 16 byte write to MS memory */
1361 ret = qlcnic_ms_mem_write128(adapter, dest, (u32 *)p_cache,
1362 size / 16);
1363 if (ret) {
1364 vfree(p_cache);
1365 return ret;
1366 }
1367 vfree(p_cache);
1368
1369 return ret;
1370 }
1371
qlcnic_83xx_copy_fw_file(struct qlcnic_adapter * adapter)1372 static int qlcnic_83xx_copy_fw_file(struct qlcnic_adapter *adapter)
1373 {
1374 struct qlc_83xx_fw_info *fw_info = adapter->ahw->fw_info;
1375 const struct firmware *fw = fw_info->fw;
1376 u32 dest, *p_cache, *temp;
1377 int i, ret = -EIO;
1378 __le32 *temp_le;
1379 u8 data[16];
1380 size_t size;
1381 u64 addr;
1382
1383 temp = vzalloc(fw->size);
1384 if (!temp) {
1385 release_firmware(fw);
1386 fw_info->fw = NULL;
1387 return -ENOMEM;
1388 }
1389
1390 temp_le = (__le32 *)fw->data;
1391
1392 /* FW image in file is in little endian, swap the data to nullify
1393 * the effect of writel() operation on big endian platform.
1394 */
1395 for (i = 0; i < fw->size / sizeof(u32); i++)
1396 temp[i] = __le32_to_cpu(temp_le[i]);
1397
1398 dest = QLCRDX(adapter->ahw, QLCNIC_FW_IMAGE_ADDR);
1399 size = (fw->size & ~0xF);
1400 p_cache = temp;
1401 addr = (u64)dest;
1402
1403 ret = qlcnic_ms_mem_write128(adapter, addr,
1404 p_cache, size / 16);
1405 if (ret) {
1406 dev_err(&adapter->pdev->dev, "MS memory write failed\n");
1407 goto exit;
1408 }
1409
1410 /* alignment check */
1411 if (fw->size & 0xF) {
1412 addr = dest + size;
1413 for (i = 0; i < (fw->size & 0xF); i++)
1414 data[i] = ((u8 *)temp)[size + i];
1415 for (; i < 16; i++)
1416 data[i] = 0;
1417 ret = qlcnic_ms_mem_write128(adapter, addr,
1418 (u32 *)data, 1);
1419 if (ret) {
1420 dev_err(&adapter->pdev->dev,
1421 "MS memory write failed\n");
1422 goto exit;
1423 }
1424 }
1425
1426 exit:
1427 release_firmware(fw);
1428 fw_info->fw = NULL;
1429 vfree(temp);
1430
1431 return ret;
1432 }
1433
qlcnic_83xx_dump_pause_control_regs(struct qlcnic_adapter * adapter)1434 static void qlcnic_83xx_dump_pause_control_regs(struct qlcnic_adapter *adapter)
1435 {
1436 int i, j;
1437 u32 val = 0, val1 = 0, reg = 0;
1438 int err = 0;
1439
1440 val = QLCRD32(adapter, QLC_83XX_SRE_SHIM_REG, &err);
1441 if (err == -EIO)
1442 return;
1443 dev_info(&adapter->pdev->dev, "SRE-Shim Ctrl:0x%x\n", val);
1444
1445 for (j = 0; j < 2; j++) {
1446 if (j == 0) {
1447 dev_info(&adapter->pdev->dev,
1448 "Port 0 RxB Pause Threshold Regs[TC7..TC0]:");
1449 reg = QLC_83XX_PORT0_THRESHOLD;
1450 } else if (j == 1) {
1451 dev_info(&adapter->pdev->dev,
1452 "Port 1 RxB Pause Threshold Regs[TC7..TC0]:");
1453 reg = QLC_83XX_PORT1_THRESHOLD;
1454 }
1455 for (i = 0; i < 8; i++) {
1456 val = QLCRD32(adapter, reg + (i * 0x4), &err);
1457 if (err == -EIO)
1458 return;
1459 dev_info(&adapter->pdev->dev, "0x%x ", val);
1460 }
1461 dev_info(&adapter->pdev->dev, "\n");
1462 }
1463
1464 for (j = 0; j < 2; j++) {
1465 if (j == 0) {
1466 dev_info(&adapter->pdev->dev,
1467 "Port 0 RxB TC Max Cell Registers[4..1]:");
1468 reg = QLC_83XX_PORT0_TC_MC_REG;
1469 } else if (j == 1) {
1470 dev_info(&adapter->pdev->dev,
1471 "Port 1 RxB TC Max Cell Registers[4..1]:");
1472 reg = QLC_83XX_PORT1_TC_MC_REG;
1473 }
1474 for (i = 0; i < 4; i++) {
1475 val = QLCRD32(adapter, reg + (i * 0x4), &err);
1476 if (err == -EIO)
1477 return;
1478 dev_info(&adapter->pdev->dev, "0x%x ", val);
1479 }
1480 dev_info(&adapter->pdev->dev, "\n");
1481 }
1482
1483 for (j = 0; j < 2; j++) {
1484 if (j == 0) {
1485 dev_info(&adapter->pdev->dev,
1486 "Port 0 RxB Rx TC Stats[TC7..TC0]:");
1487 reg = QLC_83XX_PORT0_TC_STATS;
1488 } else if (j == 1) {
1489 dev_info(&adapter->pdev->dev,
1490 "Port 1 RxB Rx TC Stats[TC7..TC0]:");
1491 reg = QLC_83XX_PORT1_TC_STATS;
1492 }
1493 for (i = 7; i >= 0; i--) {
1494 val = QLCRD32(adapter, reg, &err);
1495 if (err == -EIO)
1496 return;
1497 val &= ~(0x7 << 29); /* Reset bits 29 to 31 */
1498 QLCWR32(adapter, reg, (val | (i << 29)));
1499 val = QLCRD32(adapter, reg, &err);
1500 if (err == -EIO)
1501 return;
1502 dev_info(&adapter->pdev->dev, "0x%x ", val);
1503 }
1504 dev_info(&adapter->pdev->dev, "\n");
1505 }
1506
1507 val = QLCRD32(adapter, QLC_83XX_PORT2_IFB_THRESHOLD, &err);
1508 if (err == -EIO)
1509 return;
1510 val1 = QLCRD32(adapter, QLC_83XX_PORT3_IFB_THRESHOLD, &err);
1511 if (err == -EIO)
1512 return;
1513 dev_info(&adapter->pdev->dev,
1514 "IFB-Pause Thresholds: Port 2:0x%x, Port 3:0x%x\n",
1515 val, val1);
1516 }
1517
1518
qlcnic_83xx_disable_pause_frames(struct qlcnic_adapter * adapter)1519 static void qlcnic_83xx_disable_pause_frames(struct qlcnic_adapter *adapter)
1520 {
1521 u32 reg = 0, i, j;
1522
1523 if (qlcnic_83xx_lock_driver(adapter)) {
1524 dev_err(&adapter->pdev->dev,
1525 "%s:failed to acquire driver lock\n", __func__);
1526 return;
1527 }
1528
1529 qlcnic_83xx_dump_pause_control_regs(adapter);
1530 QLCWR32(adapter, QLC_83XX_SRE_SHIM_REG, 0x0);
1531
1532 for (j = 0; j < 2; j++) {
1533 if (j == 0)
1534 reg = QLC_83XX_PORT0_THRESHOLD;
1535 else if (j == 1)
1536 reg = QLC_83XX_PORT1_THRESHOLD;
1537
1538 for (i = 0; i < 8; i++)
1539 QLCWR32(adapter, reg + (i * 0x4), 0x0);
1540 }
1541
1542 for (j = 0; j < 2; j++) {
1543 if (j == 0)
1544 reg = QLC_83XX_PORT0_TC_MC_REG;
1545 else if (j == 1)
1546 reg = QLC_83XX_PORT1_TC_MC_REG;
1547
1548 for (i = 0; i < 4; i++)
1549 QLCWR32(adapter, reg + (i * 0x4), 0x03FF03FF);
1550 }
1551
1552 QLCWR32(adapter, QLC_83XX_PORT2_IFB_THRESHOLD, 0);
1553 QLCWR32(adapter, QLC_83XX_PORT3_IFB_THRESHOLD, 0);
1554 dev_info(&adapter->pdev->dev,
1555 "Disabled pause frames successfully on all ports\n");
1556 qlcnic_83xx_unlock_driver(adapter);
1557 }
1558
qlcnic_83xx_take_eport_out_of_reset(struct qlcnic_adapter * adapter)1559 static void qlcnic_83xx_take_eport_out_of_reset(struct qlcnic_adapter *adapter)
1560 {
1561 QLCWR32(adapter, QLC_83XX_RESET_REG, 0);
1562 QLCWR32(adapter, QLC_83XX_RESET_PORT0, 0);
1563 QLCWR32(adapter, QLC_83XX_RESET_PORT1, 0);
1564 QLCWR32(adapter, QLC_83XX_RESET_PORT2, 0);
1565 QLCWR32(adapter, QLC_83XX_RESET_PORT3, 0);
1566 QLCWR32(adapter, QLC_83XX_RESET_SRESHIM, 0);
1567 QLCWR32(adapter, QLC_83XX_RESET_EPGSHIM, 0);
1568 QLCWR32(adapter, QLC_83XX_RESET_ETHERPCS, 0);
1569 QLCWR32(adapter, QLC_83XX_RESET_CONTROL, 1);
1570 }
1571
qlcnic_83xx_check_heartbeat(struct qlcnic_adapter * p_dev)1572 static int qlcnic_83xx_check_heartbeat(struct qlcnic_adapter *p_dev)
1573 {
1574 u32 heartbeat, peg_status;
1575 int retries, ret = -EIO, err = 0;
1576
1577 retries = QLCNIC_HEARTBEAT_CHECK_RETRY_COUNT;
1578 p_dev->heartbeat = QLC_SHARED_REG_RD32(p_dev,
1579 QLCNIC_PEG_ALIVE_COUNTER);
1580
1581 do {
1582 msleep(QLCNIC_HEARTBEAT_PERIOD_MSECS);
1583 heartbeat = QLC_SHARED_REG_RD32(p_dev,
1584 QLCNIC_PEG_ALIVE_COUNTER);
1585 if (heartbeat != p_dev->heartbeat) {
1586 ret = QLCNIC_RCODE_SUCCESS;
1587 break;
1588 }
1589 } while (--retries);
1590
1591 if (ret) {
1592 dev_err(&p_dev->pdev->dev, "firmware hang detected\n");
1593 qlcnic_83xx_take_eport_out_of_reset(p_dev);
1594 qlcnic_83xx_disable_pause_frames(p_dev);
1595 peg_status = QLC_SHARED_REG_RD32(p_dev,
1596 QLCNIC_PEG_HALT_STATUS1);
1597 dev_info(&p_dev->pdev->dev, "Dumping HW/FW registers\n"
1598 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
1599 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
1600 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
1601 "PEG_NET_4_PC: 0x%x\n", peg_status,
1602 QLC_SHARED_REG_RD32(p_dev, QLCNIC_PEG_HALT_STATUS2),
1603 QLCRD32(p_dev, QLC_83XX_CRB_PEG_NET_0, &err),
1604 QLCRD32(p_dev, QLC_83XX_CRB_PEG_NET_1, &err),
1605 QLCRD32(p_dev, QLC_83XX_CRB_PEG_NET_2, &err),
1606 QLCRD32(p_dev, QLC_83XX_CRB_PEG_NET_3, &err),
1607 QLCRD32(p_dev, QLC_83XX_CRB_PEG_NET_4, &err));
1608
1609 if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
1610 dev_err(&p_dev->pdev->dev,
1611 "Device is being reset err code 0x00006700.\n");
1612 }
1613
1614 return ret;
1615 }
1616
qlcnic_83xx_check_cmd_peg_status(struct qlcnic_adapter * p_dev)1617 static int qlcnic_83xx_check_cmd_peg_status(struct qlcnic_adapter *p_dev)
1618 {
1619 int retries = QLCNIC_CMDPEG_CHECK_RETRY_COUNT;
1620 u32 val;
1621
1622 do {
1623 val = QLC_SHARED_REG_RD32(p_dev, QLCNIC_CMDPEG_STATE);
1624 if (val == QLC_83XX_CMDPEG_COMPLETE)
1625 return 0;
1626 msleep(QLCNIC_CMDPEG_CHECK_DELAY);
1627 } while (--retries);
1628
1629 dev_err(&p_dev->pdev->dev, "%s: failed, state = 0x%x\n", __func__, val);
1630 return -EIO;
1631 }
1632
qlcnic_83xx_check_hw_status(struct qlcnic_adapter * p_dev)1633 static int qlcnic_83xx_check_hw_status(struct qlcnic_adapter *p_dev)
1634 {
1635 int err;
1636
1637 err = qlcnic_83xx_check_cmd_peg_status(p_dev);
1638 if (err)
1639 return err;
1640
1641 err = qlcnic_83xx_check_heartbeat(p_dev);
1642 if (err)
1643 return err;
1644
1645 return err;
1646 }
1647
qlcnic_83xx_poll_reg(struct qlcnic_adapter * p_dev,u32 addr,int duration,u32 mask,u32 status)1648 static int qlcnic_83xx_poll_reg(struct qlcnic_adapter *p_dev, u32 addr,
1649 int duration, u32 mask, u32 status)
1650 {
1651 int timeout_error, err = 0;
1652 u32 value;
1653 u8 retries;
1654
1655 value = QLCRD32(p_dev, addr, &err);
1656 if (err == -EIO)
1657 return err;
1658 retries = duration / 10;
1659
1660 do {
1661 if ((value & mask) != status) {
1662 timeout_error = 1;
1663 msleep(duration / 10);
1664 value = QLCRD32(p_dev, addr, &err);
1665 if (err == -EIO)
1666 return err;
1667 } else {
1668 timeout_error = 0;
1669 break;
1670 }
1671 } while (retries--);
1672
1673 if (timeout_error) {
1674 p_dev->ahw->reset.seq_error++;
1675 dev_err(&p_dev->pdev->dev,
1676 "%s: Timeout Err, entry_num = %d\n",
1677 __func__, p_dev->ahw->reset.seq_index);
1678 dev_err(&p_dev->pdev->dev,
1679 "0x%08x 0x%08x 0x%08x\n",
1680 value, mask, status);
1681 }
1682
1683 return timeout_error;
1684 }
1685
qlcnic_83xx_reset_template_checksum(struct qlcnic_adapter * p_dev)1686 static int qlcnic_83xx_reset_template_checksum(struct qlcnic_adapter *p_dev)
1687 {
1688 u32 sum = 0;
1689 u16 *buff = (u16 *)p_dev->ahw->reset.buff;
1690 int count = p_dev->ahw->reset.hdr->size / sizeof(u16);
1691
1692 while (count-- > 0)
1693 sum += *buff++;
1694
1695 while (sum >> 16)
1696 sum = (sum & 0xFFFF) + (sum >> 16);
1697
1698 if (~sum) {
1699 return 0;
1700 } else {
1701 dev_err(&p_dev->pdev->dev, "%s: failed\n", __func__);
1702 return -1;
1703 }
1704 }
1705
qlcnic_83xx_get_reset_instruction_template(struct qlcnic_adapter * p_dev)1706 static int qlcnic_83xx_get_reset_instruction_template(struct qlcnic_adapter *p_dev)
1707 {
1708 struct qlcnic_hardware_context *ahw = p_dev->ahw;
1709 u32 addr, count, prev_ver, curr_ver;
1710 u8 *p_buff;
1711
1712 if (ahw->reset.buff != NULL) {
1713 prev_ver = p_dev->fw_version;
1714 curr_ver = qlcnic_83xx_get_fw_version(p_dev);
1715 if (curr_ver > prev_ver)
1716 kfree(ahw->reset.buff);
1717 else
1718 return 0;
1719 }
1720
1721 ahw->reset.seq_error = 0;
1722 ahw->reset.buff = kzalloc(QLC_83XX_RESTART_TEMPLATE_SIZE, GFP_KERNEL);
1723 if (p_dev->ahw->reset.buff == NULL)
1724 return -ENOMEM;
1725
1726 p_buff = p_dev->ahw->reset.buff;
1727 addr = QLC_83XX_RESET_TEMPLATE_ADDR;
1728 count = sizeof(struct qlc_83xx_reset_hdr) / sizeof(u32);
1729
1730 /* Copy template header from flash */
1731 if (qlcnic_83xx_flash_read32(p_dev, addr, p_buff, count)) {
1732 dev_err(&p_dev->pdev->dev, "%s: flash read failed\n", __func__);
1733 return -EIO;
1734 }
1735 ahw->reset.hdr = (struct qlc_83xx_reset_hdr *)ahw->reset.buff;
1736 addr = QLC_83XX_RESET_TEMPLATE_ADDR + ahw->reset.hdr->hdr_size;
1737 p_buff = ahw->reset.buff + ahw->reset.hdr->hdr_size;
1738 count = (ahw->reset.hdr->size - ahw->reset.hdr->hdr_size) / sizeof(u32);
1739
1740 /* Copy rest of the template */
1741 if (qlcnic_83xx_flash_read32(p_dev, addr, p_buff, count)) {
1742 dev_err(&p_dev->pdev->dev, "%s: flash read failed\n", __func__);
1743 return -EIO;
1744 }
1745
1746 if (qlcnic_83xx_reset_template_checksum(p_dev))
1747 return -EIO;
1748 /* Get Stop, Start and Init command offsets */
1749 ahw->reset.init_offset = ahw->reset.buff + ahw->reset.hdr->init_offset;
1750 ahw->reset.start_offset = ahw->reset.buff +
1751 ahw->reset.hdr->start_offset;
1752 ahw->reset.stop_offset = ahw->reset.buff + ahw->reset.hdr->hdr_size;
1753 return 0;
1754 }
1755
1756 /* Read Write HW register command */
qlcnic_83xx_read_write_crb_reg(struct qlcnic_adapter * p_dev,u32 raddr,u32 waddr)1757 static void qlcnic_83xx_read_write_crb_reg(struct qlcnic_adapter *p_dev,
1758 u32 raddr, u32 waddr)
1759 {
1760 int err = 0;
1761 u32 value;
1762
1763 value = QLCRD32(p_dev, raddr, &err);
1764 if (err == -EIO)
1765 return;
1766 qlcnic_83xx_wrt_reg_indirect(p_dev, waddr, value);
1767 }
1768
1769 /* Read Modify Write HW register command */
qlcnic_83xx_rmw_crb_reg(struct qlcnic_adapter * p_dev,u32 raddr,u32 waddr,struct qlc_83xx_rmw * p_rmw_hdr)1770 static void qlcnic_83xx_rmw_crb_reg(struct qlcnic_adapter *p_dev,
1771 u32 raddr, u32 waddr,
1772 struct qlc_83xx_rmw *p_rmw_hdr)
1773 {
1774 int err = 0;
1775 u32 value;
1776
1777 if (p_rmw_hdr->index_a) {
1778 value = p_dev->ahw->reset.array[p_rmw_hdr->index_a];
1779 } else {
1780 value = QLCRD32(p_dev, raddr, &err);
1781 if (err == -EIO)
1782 return;
1783 }
1784
1785 value &= p_rmw_hdr->mask;
1786 value <<= p_rmw_hdr->shl;
1787 value >>= p_rmw_hdr->shr;
1788 value |= p_rmw_hdr->or_value;
1789 value ^= p_rmw_hdr->xor_value;
1790 qlcnic_83xx_wrt_reg_indirect(p_dev, waddr, value);
1791 }
1792
1793 /* Write HW register command */
qlcnic_83xx_write_list(struct qlcnic_adapter * p_dev,struct qlc_83xx_entry_hdr * p_hdr)1794 static void qlcnic_83xx_write_list(struct qlcnic_adapter *p_dev,
1795 struct qlc_83xx_entry_hdr *p_hdr)
1796 {
1797 int i;
1798 struct qlc_83xx_entry *entry;
1799
1800 entry = (struct qlc_83xx_entry *)((char *)p_hdr +
1801 sizeof(struct qlc_83xx_entry_hdr));
1802
1803 for (i = 0; i < p_hdr->count; i++, entry++) {
1804 qlcnic_83xx_wrt_reg_indirect(p_dev, entry->arg1,
1805 entry->arg2);
1806 if (p_hdr->delay)
1807 udelay((u32)(p_hdr->delay));
1808 }
1809 }
1810
1811 /* Read and Write instruction */
qlcnic_83xx_read_write_list(struct qlcnic_adapter * p_dev,struct qlc_83xx_entry_hdr * p_hdr)1812 static void qlcnic_83xx_read_write_list(struct qlcnic_adapter *p_dev,
1813 struct qlc_83xx_entry_hdr *p_hdr)
1814 {
1815 int i;
1816 struct qlc_83xx_entry *entry;
1817
1818 entry = (struct qlc_83xx_entry *)((char *)p_hdr +
1819 sizeof(struct qlc_83xx_entry_hdr));
1820
1821 for (i = 0; i < p_hdr->count; i++, entry++) {
1822 qlcnic_83xx_read_write_crb_reg(p_dev, entry->arg1,
1823 entry->arg2);
1824 if (p_hdr->delay)
1825 udelay((u32)(p_hdr->delay));
1826 }
1827 }
1828
1829 /* Poll HW register command */
qlcnic_83xx_poll_list(struct qlcnic_adapter * p_dev,struct qlc_83xx_entry_hdr * p_hdr)1830 static void qlcnic_83xx_poll_list(struct qlcnic_adapter *p_dev,
1831 struct qlc_83xx_entry_hdr *p_hdr)
1832 {
1833 long delay;
1834 struct qlc_83xx_entry *entry;
1835 struct qlc_83xx_poll *poll;
1836 int i, err = 0;
1837 unsigned long arg1, arg2;
1838
1839 poll = (struct qlc_83xx_poll *)((char *)p_hdr +
1840 sizeof(struct qlc_83xx_entry_hdr));
1841
1842 entry = (struct qlc_83xx_entry *)((char *)poll +
1843 sizeof(struct qlc_83xx_poll));
1844 delay = (long)p_hdr->delay;
1845
1846 if (!delay) {
1847 for (i = 0; i < p_hdr->count; i++, entry++)
1848 qlcnic_83xx_poll_reg(p_dev, entry->arg1,
1849 delay, poll->mask,
1850 poll->status);
1851 } else {
1852 for (i = 0; i < p_hdr->count; i++, entry++) {
1853 arg1 = entry->arg1;
1854 arg2 = entry->arg2;
1855 if (delay) {
1856 if (qlcnic_83xx_poll_reg(p_dev,
1857 arg1, delay,
1858 poll->mask,
1859 poll->status)){
1860 QLCRD32(p_dev, arg1, &err);
1861 if (err == -EIO)
1862 return;
1863 QLCRD32(p_dev, arg2, &err);
1864 if (err == -EIO)
1865 return;
1866 }
1867 }
1868 }
1869 }
1870 }
1871
1872 /* Poll and write HW register command */
qlcnic_83xx_poll_write_list(struct qlcnic_adapter * p_dev,struct qlc_83xx_entry_hdr * p_hdr)1873 static void qlcnic_83xx_poll_write_list(struct qlcnic_adapter *p_dev,
1874 struct qlc_83xx_entry_hdr *p_hdr)
1875 {
1876 int i;
1877 long delay;
1878 struct qlc_83xx_quad_entry *entry;
1879 struct qlc_83xx_poll *poll;
1880
1881 poll = (struct qlc_83xx_poll *)((char *)p_hdr +
1882 sizeof(struct qlc_83xx_entry_hdr));
1883 entry = (struct qlc_83xx_quad_entry *)((char *)poll +
1884 sizeof(struct qlc_83xx_poll));
1885 delay = (long)p_hdr->delay;
1886
1887 for (i = 0; i < p_hdr->count; i++, entry++) {
1888 qlcnic_83xx_wrt_reg_indirect(p_dev, entry->dr_addr,
1889 entry->dr_value);
1890 qlcnic_83xx_wrt_reg_indirect(p_dev, entry->ar_addr,
1891 entry->ar_value);
1892 if (delay)
1893 qlcnic_83xx_poll_reg(p_dev, entry->ar_addr, delay,
1894 poll->mask, poll->status);
1895 }
1896 }
1897
1898 /* Read Modify Write register command */
qlcnic_83xx_read_modify_write(struct qlcnic_adapter * p_dev,struct qlc_83xx_entry_hdr * p_hdr)1899 static void qlcnic_83xx_read_modify_write(struct qlcnic_adapter *p_dev,
1900 struct qlc_83xx_entry_hdr *p_hdr)
1901 {
1902 int i;
1903 struct qlc_83xx_entry *entry;
1904 struct qlc_83xx_rmw *rmw_hdr;
1905
1906 rmw_hdr = (struct qlc_83xx_rmw *)((char *)p_hdr +
1907 sizeof(struct qlc_83xx_entry_hdr));
1908
1909 entry = (struct qlc_83xx_entry *)((char *)rmw_hdr +
1910 sizeof(struct qlc_83xx_rmw));
1911
1912 for (i = 0; i < p_hdr->count; i++, entry++) {
1913 qlcnic_83xx_rmw_crb_reg(p_dev, entry->arg1,
1914 entry->arg2, rmw_hdr);
1915 if (p_hdr->delay)
1916 udelay((u32)(p_hdr->delay));
1917 }
1918 }
1919
qlcnic_83xx_pause(struct qlc_83xx_entry_hdr * p_hdr)1920 static void qlcnic_83xx_pause(struct qlc_83xx_entry_hdr *p_hdr)
1921 {
1922 if (p_hdr->delay)
1923 mdelay((u32)((long)p_hdr->delay));
1924 }
1925
1926 /* Read and poll register command */
qlcnic_83xx_poll_read_list(struct qlcnic_adapter * p_dev,struct qlc_83xx_entry_hdr * p_hdr)1927 static void qlcnic_83xx_poll_read_list(struct qlcnic_adapter *p_dev,
1928 struct qlc_83xx_entry_hdr *p_hdr)
1929 {
1930 long delay;
1931 int index, i, j, err;
1932 struct qlc_83xx_quad_entry *entry;
1933 struct qlc_83xx_poll *poll;
1934 unsigned long addr;
1935
1936 poll = (struct qlc_83xx_poll *)((char *)p_hdr +
1937 sizeof(struct qlc_83xx_entry_hdr));
1938
1939 entry = (struct qlc_83xx_quad_entry *)((char *)poll +
1940 sizeof(struct qlc_83xx_poll));
1941 delay = (long)p_hdr->delay;
1942
1943 for (i = 0; i < p_hdr->count; i++, entry++) {
1944 qlcnic_83xx_wrt_reg_indirect(p_dev, entry->ar_addr,
1945 entry->ar_value);
1946 if (delay) {
1947 if (!qlcnic_83xx_poll_reg(p_dev, entry->ar_addr, delay,
1948 poll->mask, poll->status)){
1949 index = p_dev->ahw->reset.array_index;
1950 addr = entry->dr_addr;
1951 j = QLCRD32(p_dev, addr, &err);
1952 if (err == -EIO)
1953 return;
1954
1955 p_dev->ahw->reset.array[index++] = j;
1956
1957 if (index == QLC_83XX_MAX_RESET_SEQ_ENTRIES)
1958 p_dev->ahw->reset.array_index = 1;
1959 }
1960 }
1961 }
1962 }
1963
qlcnic_83xx_seq_end(struct qlcnic_adapter * p_dev)1964 static inline void qlcnic_83xx_seq_end(struct qlcnic_adapter *p_dev)
1965 {
1966 p_dev->ahw->reset.seq_end = 1;
1967 }
1968
qlcnic_83xx_template_end(struct qlcnic_adapter * p_dev)1969 static void qlcnic_83xx_template_end(struct qlcnic_adapter *p_dev)
1970 {
1971 p_dev->ahw->reset.template_end = 1;
1972 if (p_dev->ahw->reset.seq_error == 0)
1973 dev_err(&p_dev->pdev->dev,
1974 "HW restart process completed successfully.\n");
1975 else
1976 dev_err(&p_dev->pdev->dev,
1977 "HW restart completed with timeout errors.\n");
1978 }
1979
1980 /**
1981 * qlcnic_83xx_exec_template_cmd
1982 *
1983 * @p_dev: adapter structure
1984 * @p_buff: Poiter to instruction template
1985 *
1986 * Template provides instructions to stop, restart and initalize firmware.
1987 * These instructions are abstracted as a series of read, write and
1988 * poll operations on hardware registers. Register information and operation
1989 * specifics are not exposed to the driver. Driver reads the template from
1990 * flash and executes the instructions located at pre-defined offsets.
1991 *
1992 * Returns: None
1993 * */
qlcnic_83xx_exec_template_cmd(struct qlcnic_adapter * p_dev,char * p_buff)1994 static void qlcnic_83xx_exec_template_cmd(struct qlcnic_adapter *p_dev,
1995 char *p_buff)
1996 {
1997 int index, entries;
1998 struct qlc_83xx_entry_hdr *p_hdr;
1999 char *entry = p_buff;
2000
2001 p_dev->ahw->reset.seq_end = 0;
2002 p_dev->ahw->reset.template_end = 0;
2003 entries = p_dev->ahw->reset.hdr->entries;
2004 index = p_dev->ahw->reset.seq_index;
2005
2006 for (; (!p_dev->ahw->reset.seq_end) && (index < entries); index++) {
2007 p_hdr = (struct qlc_83xx_entry_hdr *)entry;
2008
2009 switch (p_hdr->cmd) {
2010 case QLC_83XX_OPCODE_NOP:
2011 break;
2012 case QLC_83XX_OPCODE_WRITE_LIST:
2013 qlcnic_83xx_write_list(p_dev, p_hdr);
2014 break;
2015 case QLC_83XX_OPCODE_READ_WRITE_LIST:
2016 qlcnic_83xx_read_write_list(p_dev, p_hdr);
2017 break;
2018 case QLC_83XX_OPCODE_POLL_LIST:
2019 qlcnic_83xx_poll_list(p_dev, p_hdr);
2020 break;
2021 case QLC_83XX_OPCODE_POLL_WRITE_LIST:
2022 qlcnic_83xx_poll_write_list(p_dev, p_hdr);
2023 break;
2024 case QLC_83XX_OPCODE_READ_MODIFY_WRITE:
2025 qlcnic_83xx_read_modify_write(p_dev, p_hdr);
2026 break;
2027 case QLC_83XX_OPCODE_SEQ_PAUSE:
2028 qlcnic_83xx_pause(p_hdr);
2029 break;
2030 case QLC_83XX_OPCODE_SEQ_END:
2031 qlcnic_83xx_seq_end(p_dev);
2032 break;
2033 case QLC_83XX_OPCODE_TMPL_END:
2034 qlcnic_83xx_template_end(p_dev);
2035 break;
2036 case QLC_83XX_OPCODE_POLL_READ_LIST:
2037 qlcnic_83xx_poll_read_list(p_dev, p_hdr);
2038 break;
2039 default:
2040 dev_err(&p_dev->pdev->dev,
2041 "%s: Unknown opcode 0x%04x in template %d\n",
2042 __func__, p_hdr->cmd, index);
2043 break;
2044 }
2045 entry += p_hdr->size;
2046 }
2047 p_dev->ahw->reset.seq_index = index;
2048 }
2049
qlcnic_83xx_stop_hw(struct qlcnic_adapter * p_dev)2050 static void qlcnic_83xx_stop_hw(struct qlcnic_adapter *p_dev)
2051 {
2052 p_dev->ahw->reset.seq_index = 0;
2053
2054 qlcnic_83xx_exec_template_cmd(p_dev, p_dev->ahw->reset.stop_offset);
2055 if (p_dev->ahw->reset.seq_end != 1)
2056 dev_err(&p_dev->pdev->dev, "%s: failed\n", __func__);
2057 }
2058
qlcnic_83xx_start_hw(struct qlcnic_adapter * p_dev)2059 static void qlcnic_83xx_start_hw(struct qlcnic_adapter *p_dev)
2060 {
2061 qlcnic_83xx_exec_template_cmd(p_dev, p_dev->ahw->reset.start_offset);
2062 if (p_dev->ahw->reset.template_end != 1)
2063 dev_err(&p_dev->pdev->dev, "%s: failed\n", __func__);
2064 }
2065
qlcnic_83xx_init_hw(struct qlcnic_adapter * p_dev)2066 static void qlcnic_83xx_init_hw(struct qlcnic_adapter *p_dev)
2067 {
2068 qlcnic_83xx_exec_template_cmd(p_dev, p_dev->ahw->reset.init_offset);
2069 if (p_dev->ahw->reset.seq_end != 1)
2070 dev_err(&p_dev->pdev->dev, "%s: failed\n", __func__);
2071 }
2072
2073 /* POST FW related definations*/
2074 #define QLC_83XX_POST_SIGNATURE_REG 0x41602014
2075 #define QLC_83XX_POST_MODE_REG 0x41602018
2076 #define QLC_83XX_POST_FAST_MODE 0
2077 #define QLC_83XX_POST_MEDIUM_MODE 1
2078 #define QLC_83XX_POST_SLOW_MODE 2
2079
2080 /* POST Timeout values in milliseconds */
2081 #define QLC_83XX_POST_FAST_MODE_TIMEOUT 690
2082 #define QLC_83XX_POST_MED_MODE_TIMEOUT 2930
2083 #define QLC_83XX_POST_SLOW_MODE_TIMEOUT 7500
2084
2085 /* POST result values */
2086 #define QLC_83XX_POST_PASS 0xfffffff0
2087 #define QLC_83XX_POST_ASIC_STRESS_TEST_FAIL 0xffffffff
2088 #define QLC_83XX_POST_DDR_TEST_FAIL 0xfffffffe
2089 #define QLC_83XX_POST_ASIC_MEMORY_TEST_FAIL 0xfffffffc
2090 #define QLC_83XX_POST_FLASH_TEST_FAIL 0xfffffff8
2091
qlcnic_83xx_run_post(struct qlcnic_adapter * adapter)2092 static int qlcnic_83xx_run_post(struct qlcnic_adapter *adapter)
2093 {
2094 struct qlc_83xx_fw_info *fw_info = adapter->ahw->fw_info;
2095 struct device *dev = &adapter->pdev->dev;
2096 int timeout, count, ret = 0;
2097 u32 signature;
2098
2099 /* Set timeout values with extra 2 seconds of buffer */
2100 switch (adapter->ahw->post_mode) {
2101 case QLC_83XX_POST_FAST_MODE:
2102 timeout = QLC_83XX_POST_FAST_MODE_TIMEOUT + 2000;
2103 break;
2104 case QLC_83XX_POST_MEDIUM_MODE:
2105 timeout = QLC_83XX_POST_MED_MODE_TIMEOUT + 2000;
2106 break;
2107 case QLC_83XX_POST_SLOW_MODE:
2108 timeout = QLC_83XX_POST_SLOW_MODE_TIMEOUT + 2000;
2109 break;
2110 default:
2111 return -EINVAL;
2112 }
2113
2114 strncpy(fw_info->fw_file_name, QLC_83XX_POST_FW_FILE_NAME,
2115 QLC_FW_FILE_NAME_LEN);
2116
2117 ret = request_firmware(&fw_info->fw, fw_info->fw_file_name, dev);
2118 if (ret) {
2119 dev_err(dev, "POST firmware can not be loaded, skipping POST\n");
2120 return 0;
2121 }
2122
2123 ret = qlcnic_83xx_copy_fw_file(adapter);
2124 if (ret)
2125 return ret;
2126
2127 /* clear QLC_83XX_POST_SIGNATURE_REG register */
2128 qlcnic_ind_wr(adapter, QLC_83XX_POST_SIGNATURE_REG, 0);
2129
2130 /* Set POST mode */
2131 qlcnic_ind_wr(adapter, QLC_83XX_POST_MODE_REG,
2132 adapter->ahw->post_mode);
2133
2134 QLC_SHARED_REG_WR32(adapter, QLCNIC_FW_IMG_VALID,
2135 QLC_83XX_BOOT_FROM_FILE);
2136
2137 qlcnic_83xx_start_hw(adapter);
2138
2139 count = 0;
2140 do {
2141 msleep(100);
2142 count += 100;
2143
2144 signature = qlcnic_ind_rd(adapter, QLC_83XX_POST_SIGNATURE_REG);
2145 if (signature == QLC_83XX_POST_PASS)
2146 break;
2147 } while (timeout > count);
2148
2149 if (timeout <= count) {
2150 dev_err(dev, "POST timed out, signature = 0x%08x\n", signature);
2151 return -EIO;
2152 }
2153
2154 switch (signature) {
2155 case QLC_83XX_POST_PASS:
2156 dev_info(dev, "POST passed, Signature = 0x%08x\n", signature);
2157 break;
2158 case QLC_83XX_POST_ASIC_STRESS_TEST_FAIL:
2159 dev_err(dev, "POST failed, Test case : ASIC STRESS TEST, Signature = 0x%08x\n",
2160 signature);
2161 ret = -EIO;
2162 break;
2163 case QLC_83XX_POST_DDR_TEST_FAIL:
2164 dev_err(dev, "POST failed, Test case : DDT TEST, Signature = 0x%08x\n",
2165 signature);
2166 ret = -EIO;
2167 break;
2168 case QLC_83XX_POST_ASIC_MEMORY_TEST_FAIL:
2169 dev_err(dev, "POST failed, Test case : ASIC MEMORY TEST, Signature = 0x%08x\n",
2170 signature);
2171 ret = -EIO;
2172 break;
2173 case QLC_83XX_POST_FLASH_TEST_FAIL:
2174 dev_err(dev, "POST failed, Test case : FLASH TEST, Signature = 0x%08x\n",
2175 signature);
2176 ret = -EIO;
2177 break;
2178 default:
2179 dev_err(dev, "POST failed, Test case : INVALID, Signature = 0x%08x\n",
2180 signature);
2181 ret = -EIO;
2182 break;
2183 }
2184
2185 return ret;
2186 }
2187
qlcnic_83xx_load_fw_image_from_host(struct qlcnic_adapter * adapter)2188 static int qlcnic_83xx_load_fw_image_from_host(struct qlcnic_adapter *adapter)
2189 {
2190 struct qlc_83xx_fw_info *fw_info = adapter->ahw->fw_info;
2191 int err = -EIO;
2192
2193 if (request_firmware(&fw_info->fw, fw_info->fw_file_name,
2194 &(adapter->pdev->dev))) {
2195 dev_err(&adapter->pdev->dev,
2196 "No file FW image, loading flash FW image.\n");
2197 QLC_SHARED_REG_WR32(adapter, QLCNIC_FW_IMG_VALID,
2198 QLC_83XX_BOOT_FROM_FLASH);
2199 } else {
2200 if (qlcnic_83xx_copy_fw_file(adapter))
2201 return err;
2202 QLC_SHARED_REG_WR32(adapter, QLCNIC_FW_IMG_VALID,
2203 QLC_83XX_BOOT_FROM_FILE);
2204 }
2205
2206 return 0;
2207 }
2208
qlcnic_83xx_restart_hw(struct qlcnic_adapter * adapter)2209 static int qlcnic_83xx_restart_hw(struct qlcnic_adapter *adapter)
2210 {
2211 u32 val;
2212 int err = -EIO;
2213
2214 qlcnic_83xx_stop_hw(adapter);
2215
2216 /* Collect FW register dump if required */
2217 val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
2218 if (!(val & QLC_83XX_IDC_GRACEFULL_RESET))
2219 qlcnic_dump_fw(adapter);
2220
2221 if (val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY) {
2222 netdev_info(adapter->netdev, "%s: Auto firmware recovery is disabled\n",
2223 __func__);
2224 qlcnic_83xx_idc_enter_failed_state(adapter, 1);
2225 return err;
2226 }
2227
2228 qlcnic_83xx_init_hw(adapter);
2229
2230 if (qlcnic_83xx_copy_bootloader(adapter))
2231 return err;
2232
2233 /* Check if POST needs to be run */
2234 if (adapter->ahw->run_post) {
2235 err = qlcnic_83xx_run_post(adapter);
2236 if (err)
2237 return err;
2238
2239 /* No need to run POST in next reset sequence */
2240 adapter->ahw->run_post = false;
2241
2242 /* Again reset the adapter to load regular firmware */
2243 qlcnic_83xx_stop_hw(adapter);
2244 qlcnic_83xx_init_hw(adapter);
2245
2246 err = qlcnic_83xx_copy_bootloader(adapter);
2247 if (err)
2248 return err;
2249 }
2250
2251 /* Boot either flash image or firmware image from host file system */
2252 if (qlcnic_load_fw_file == 1) {
2253 if (qlcnic_83xx_load_fw_image_from_host(adapter))
2254 return err;
2255 } else {
2256 QLC_SHARED_REG_WR32(adapter, QLCNIC_FW_IMG_VALID,
2257 QLC_83XX_BOOT_FROM_FLASH);
2258 }
2259
2260 qlcnic_83xx_start_hw(adapter);
2261 if (qlcnic_83xx_check_hw_status(adapter))
2262 return -EIO;
2263
2264 return 0;
2265 }
2266
qlcnic_83xx_get_nic_configuration(struct qlcnic_adapter * adapter)2267 static int qlcnic_83xx_get_nic_configuration(struct qlcnic_adapter *adapter)
2268 {
2269 int err;
2270 struct qlcnic_info nic_info;
2271 struct qlcnic_hardware_context *ahw = adapter->ahw;
2272
2273 memset(&nic_info, 0, sizeof(struct qlcnic_info));
2274 err = qlcnic_get_nic_info(adapter, &nic_info, ahw->pci_func);
2275 if (err)
2276 return -EIO;
2277
2278 ahw->physical_port = (u8) nic_info.phys_port;
2279 ahw->switch_mode = nic_info.switch_mode;
2280 ahw->max_tx_ques = nic_info.max_tx_ques;
2281 ahw->max_rx_ques = nic_info.max_rx_ques;
2282 ahw->capabilities = nic_info.capabilities;
2283 ahw->max_mac_filters = nic_info.max_mac_filters;
2284 ahw->max_mtu = nic_info.max_mtu;
2285
2286 /* eSwitch capability indicates vNIC mode.
2287 * vNIC and SRIOV are mutually exclusive operational modes.
2288 * If SR-IOV capability is detected, SR-IOV physical function
2289 * will get initialized in default mode.
2290 * SR-IOV virtual function initialization follows a
2291 * different code path and opmode.
2292 * SRIOV mode has precedence over vNIC mode.
2293 */
2294 if (test_bit(__QLCNIC_SRIOV_CAPABLE, &adapter->state))
2295 return QLC_83XX_DEFAULT_OPMODE;
2296
2297 if (ahw->capabilities & QLC_83XX_ESWITCH_CAPABILITY)
2298 return QLCNIC_VNIC_MODE;
2299
2300 return QLC_83XX_DEFAULT_OPMODE;
2301 }
2302
qlcnic_83xx_configure_opmode(struct qlcnic_adapter * adapter)2303 int qlcnic_83xx_configure_opmode(struct qlcnic_adapter *adapter)
2304 {
2305 struct qlcnic_hardware_context *ahw = adapter->ahw;
2306 u16 max_sds_rings, max_tx_rings;
2307 int ret;
2308
2309 ret = qlcnic_83xx_get_nic_configuration(adapter);
2310 if (ret == -EIO)
2311 return -EIO;
2312
2313 if (ret == QLCNIC_VNIC_MODE) {
2314 ahw->nic_mode = QLCNIC_VNIC_MODE;
2315
2316 if (qlcnic_83xx_config_vnic_opmode(adapter))
2317 return -EIO;
2318
2319 max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
2320 max_tx_rings = QLCNIC_MAX_VNIC_TX_RINGS;
2321 } else if (ret == QLC_83XX_DEFAULT_OPMODE) {
2322 ahw->nic_mode = QLCNIC_DEFAULT_MODE;
2323 adapter->nic_ops->init_driver = qlcnic_83xx_init_default_driver;
2324 ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
2325 max_sds_rings = QLCNIC_MAX_SDS_RINGS;
2326 max_tx_rings = QLCNIC_MAX_TX_RINGS;
2327 } else {
2328 dev_err(&adapter->pdev->dev, "%s: Invalid opmode %d\n",
2329 __func__, ret);
2330 return -EIO;
2331 }
2332
2333 adapter->max_sds_rings = min(ahw->max_rx_ques, max_sds_rings);
2334 adapter->max_tx_rings = min(ahw->max_tx_ques, max_tx_rings);
2335
2336 return 0;
2337 }
2338
qlcnic_83xx_config_buff_descriptors(struct qlcnic_adapter * adapter)2339 static void qlcnic_83xx_config_buff_descriptors(struct qlcnic_adapter *adapter)
2340 {
2341 struct qlcnic_hardware_context *ahw = adapter->ahw;
2342
2343 if (ahw->port_type == QLCNIC_XGBE) {
2344 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
2345 adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
2346 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
2347 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
2348
2349 } else if (ahw->port_type == QLCNIC_GBE) {
2350 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
2351 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
2352 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
2353 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
2354 }
2355 adapter->num_txd = MAX_CMD_DESCRIPTORS;
2356 adapter->max_rds_rings = MAX_RDS_RINGS;
2357 }
2358
qlcnic_83xx_init_default_driver(struct qlcnic_adapter * adapter)2359 static int qlcnic_83xx_init_default_driver(struct qlcnic_adapter *adapter)
2360 {
2361 int err = -EIO;
2362
2363 qlcnic_83xx_get_minidump_template(adapter);
2364 if (qlcnic_83xx_get_port_info(adapter))
2365 return err;
2366
2367 qlcnic_83xx_config_buff_descriptors(adapter);
2368 adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
2369 adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
2370
2371 dev_info(&adapter->pdev->dev, "HAL Version: %d\n",
2372 adapter->ahw->fw_hal_version);
2373
2374 return 0;
2375 }
2376
2377 #define IS_QLC_83XX_USED(a, b, c) (((1 << a->portnum) & b) || ((c >> 6) & 0x1))
qlcnic_83xx_clear_function_resources(struct qlcnic_adapter * adapter)2378 static void qlcnic_83xx_clear_function_resources(struct qlcnic_adapter *adapter)
2379 {
2380 struct qlcnic_cmd_args cmd;
2381 u32 presence_mask, audit_mask;
2382 int status;
2383
2384 presence_mask = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE);
2385 audit_mask = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_AUDIT);
2386
2387 if (IS_QLC_83XX_USED(adapter, presence_mask, audit_mask)) {
2388 status = qlcnic_alloc_mbx_args(&cmd, adapter,
2389 QLCNIC_CMD_STOP_NIC_FUNC);
2390 if (status)
2391 return;
2392
2393 cmd.req.arg[1] = BIT_31;
2394 status = qlcnic_issue_cmd(adapter, &cmd);
2395 if (status)
2396 dev_err(&adapter->pdev->dev,
2397 "Failed to clean up the function resources\n");
2398 qlcnic_free_mbx_args(&cmd);
2399 }
2400 }
2401
qlcnic_83xx_get_fw_info(struct qlcnic_adapter * adapter)2402 static int qlcnic_83xx_get_fw_info(struct qlcnic_adapter *adapter)
2403 {
2404 struct qlcnic_hardware_context *ahw = adapter->ahw;
2405 struct pci_dev *pdev = adapter->pdev;
2406 struct qlc_83xx_fw_info *fw_info;
2407 int err = 0;
2408
2409 ahw->fw_info = kzalloc(sizeof(*fw_info), GFP_KERNEL);
2410 if (!ahw->fw_info) {
2411 err = -ENOMEM;
2412 } else {
2413 fw_info = ahw->fw_info;
2414 switch (pdev->device) {
2415 case PCI_DEVICE_ID_QLOGIC_QLE834X:
2416 case PCI_DEVICE_ID_QLOGIC_QLE8830:
2417 strncpy(fw_info->fw_file_name, QLC_83XX_FW_FILE_NAME,
2418 QLC_FW_FILE_NAME_LEN);
2419 break;
2420 case PCI_DEVICE_ID_QLOGIC_QLE844X:
2421 strncpy(fw_info->fw_file_name, QLC_84XX_FW_FILE_NAME,
2422 QLC_FW_FILE_NAME_LEN);
2423 break;
2424 default:
2425 dev_err(&pdev->dev, "%s: Invalid device id\n",
2426 __func__);
2427 err = -EINVAL;
2428 break;
2429 }
2430 }
2431
2432 return err;
2433 }
2434
qlcnic_83xx_init_rings(struct qlcnic_adapter * adapter)2435 static void qlcnic_83xx_init_rings(struct qlcnic_adapter *adapter)
2436 {
2437 u8 rx_cnt = QLCNIC_DEF_SDS_RINGS;
2438 u8 tx_cnt = QLCNIC_DEF_TX_RINGS;
2439
2440 adapter->max_tx_rings = QLCNIC_MAX_TX_RINGS;
2441 adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
2442
2443 if (!adapter->ahw->msix_supported) {
2444 rx_cnt = QLCNIC_SINGLE_RING;
2445 tx_cnt = QLCNIC_SINGLE_RING;
2446 }
2447
2448 /* compute and set drv sds rings */
2449 qlcnic_set_tx_ring_count(adapter, tx_cnt);
2450 qlcnic_set_sds_ring_count(adapter, rx_cnt);
2451 }
2452
qlcnic_83xx_init(struct qlcnic_adapter * adapter,int pci_using_dac)2453 int qlcnic_83xx_init(struct qlcnic_adapter *adapter, int pci_using_dac)
2454 {
2455 struct qlcnic_hardware_context *ahw = adapter->ahw;
2456 int err = 0;
2457
2458 adapter->rx_mac_learn = false;
2459 ahw->msix_supported = !!qlcnic_use_msi_x;
2460
2461 /* Check if POST needs to be run */
2462 switch (qlcnic_load_fw_file) {
2463 case 2:
2464 ahw->post_mode = QLC_83XX_POST_FAST_MODE;
2465 ahw->run_post = true;
2466 break;
2467 case 3:
2468 ahw->post_mode = QLC_83XX_POST_MEDIUM_MODE;
2469 ahw->run_post = true;
2470 break;
2471 case 4:
2472 ahw->post_mode = QLC_83XX_POST_SLOW_MODE;
2473 ahw->run_post = true;
2474 break;
2475 default:
2476 ahw->run_post = false;
2477 break;
2478 }
2479
2480 qlcnic_83xx_init_rings(adapter);
2481
2482 err = qlcnic_83xx_init_mailbox_work(adapter);
2483 if (err)
2484 goto exit;
2485
2486 if (qlcnic_sriov_vf_check(adapter)) {
2487 err = qlcnic_sriov_vf_init(adapter, pci_using_dac);
2488 if (err)
2489 goto detach_mbx;
2490 else
2491 return err;
2492 }
2493
2494 if (qlcnic_83xx_read_flash_descriptor_table(adapter) ||
2495 qlcnic_83xx_read_flash_mfg_id(adapter)) {
2496 dev_err(&adapter->pdev->dev, "Failed reading flash mfg id\n");
2497 err = -ENOTRECOVERABLE;
2498 goto detach_mbx;
2499 }
2500
2501 err = qlcnic_83xx_check_hw_status(adapter);
2502 if (err)
2503 goto detach_mbx;
2504
2505 err = qlcnic_83xx_get_fw_info(adapter);
2506 if (err)
2507 goto detach_mbx;
2508
2509 err = qlcnic_83xx_idc_init(adapter);
2510 if (err)
2511 goto detach_mbx;
2512
2513 err = qlcnic_setup_intr(adapter);
2514 if (err) {
2515 dev_err(&adapter->pdev->dev, "Failed to setup interrupt\n");
2516 goto disable_intr;
2517 }
2518
2519 INIT_DELAYED_WORK(&adapter->idc_aen_work, qlcnic_83xx_idc_aen_work);
2520
2521 err = qlcnic_83xx_setup_mbx_intr(adapter);
2522 if (err)
2523 goto disable_mbx_intr;
2524
2525 qlcnic_83xx_clear_function_resources(adapter);
2526 qlcnic_dcb_enable(adapter->dcb);
2527 qlcnic_83xx_initialize_nic(adapter, 1);
2528 qlcnic_dcb_get_info(adapter->dcb);
2529
2530 /* Configure default, SR-IOV or Virtual NIC mode of operation */
2531 err = qlcnic_83xx_configure_opmode(adapter);
2532 if (err)
2533 goto disable_mbx_intr;
2534
2535
2536 /* Perform operating mode specific initialization */
2537 err = adapter->nic_ops->init_driver(adapter);
2538 if (err)
2539 goto disable_mbx_intr;
2540
2541 /* Periodically monitor device status */
2542 qlcnic_83xx_idc_poll_dev_state(&adapter->fw_work.work);
2543 return 0;
2544
2545 disable_mbx_intr:
2546 qlcnic_83xx_free_mbx_intr(adapter);
2547
2548 disable_intr:
2549 qlcnic_teardown_intr(adapter);
2550
2551 detach_mbx:
2552 qlcnic_83xx_detach_mailbox_work(adapter);
2553 qlcnic_83xx_free_mailbox(ahw->mailbox);
2554 ahw->mailbox = NULL;
2555 exit:
2556 return err;
2557 }
2558
qlcnic_83xx_aer_stop_poll_work(struct qlcnic_adapter * adapter)2559 void qlcnic_83xx_aer_stop_poll_work(struct qlcnic_adapter *adapter)
2560 {
2561 struct qlcnic_hardware_context *ahw = adapter->ahw;
2562 struct qlc_83xx_idc *idc = &ahw->idc;
2563
2564 clear_bit(QLC_83XX_MBX_READY, &idc->status);
2565 cancel_delayed_work_sync(&adapter->fw_work);
2566
2567 if (ahw->nic_mode == QLCNIC_VNIC_MODE)
2568 qlcnic_83xx_disable_vnic_mode(adapter, 1);
2569
2570 qlcnic_83xx_idc_detach_driver(adapter);
2571 qlcnic_83xx_initialize_nic(adapter, 0);
2572
2573 cancel_delayed_work_sync(&adapter->idc_aen_work);
2574 }
2575
qlcnic_83xx_aer_reset(struct qlcnic_adapter * adapter)2576 int qlcnic_83xx_aer_reset(struct qlcnic_adapter *adapter)
2577 {
2578 struct qlcnic_hardware_context *ahw = adapter->ahw;
2579 struct qlc_83xx_idc *idc = &ahw->idc;
2580 int ret = 0;
2581 u32 owner;
2582
2583 /* Mark the previous IDC state as NEED_RESET so
2584 * that state_entry() will perform the reattachment
2585 * and bringup the device
2586 */
2587 idc->prev_state = QLC_83XX_IDC_DEV_NEED_RESET;
2588 owner = qlcnic_83xx_idc_find_reset_owner_id(adapter);
2589 if (ahw->pci_func == owner) {
2590 ret = qlcnic_83xx_restart_hw(adapter);
2591 if (ret < 0)
2592 return ret;
2593 qlcnic_83xx_idc_clear_registers(adapter, 0);
2594 }
2595
2596 ret = idc->state_entry(adapter);
2597 return ret;
2598 }
2599
qlcnic_83xx_aer_start_poll_work(struct qlcnic_adapter * adapter)2600 void qlcnic_83xx_aer_start_poll_work(struct qlcnic_adapter *adapter)
2601 {
2602 struct qlcnic_hardware_context *ahw = adapter->ahw;
2603 struct qlc_83xx_idc *idc = &ahw->idc;
2604 u32 owner;
2605
2606 idc->prev_state = QLC_83XX_IDC_DEV_READY;
2607 owner = qlcnic_83xx_idc_find_reset_owner_id(adapter);
2608 if (ahw->pci_func == owner)
2609 qlcnic_83xx_idc_enter_ready_state(adapter, 0);
2610
2611 qlcnic_schedule_work(adapter, qlcnic_83xx_idc_poll_dev_state, 0);
2612 }
2613
