1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18#include <linux/pci.h>
19#include <linux/netdevice.h>
20#include <linux/vmalloc.h>
21#include "liquidio_common.h"
22#include "octeon_droq.h"
23#include "octeon_iq.h"
24#include "response_manager.h"
25#include "octeon_device.h"
26#include "octeon_main.h"
27#include "octeon_network.h"
28#include "cn66xx_regs.h"
29#include "cn66xx_device.h"
30#include "cn23xx_pf_device.h"
31#include "cn23xx_vf_device.h"
32
33
34
35
36static struct octeon_config default_cn66xx_conf = {
37 .card_type = LIO_210SV,
38 .card_name = LIO_210SV_NAME,
39
40
41 .iq = {
42 .max_iqs = CN6XXX_CFG_IO_QUEUES,
43 .pending_list_size =
44 (CN6XXX_MAX_IQ_DESCRIPTORS * CN6XXX_CFG_IO_QUEUES),
45 .instr_type = OCTEON_64BYTE_INSTR,
46 .db_min = CN6XXX_DB_MIN,
47 .db_timeout = CN6XXX_DB_TIMEOUT,
48 }
49 ,
50
51
52 .oq = {
53 .max_oqs = CN6XXX_CFG_IO_QUEUES,
54 .refill_threshold = CN6XXX_OQ_REFIL_THRESHOLD,
55 .oq_intr_pkt = CN6XXX_OQ_INTR_PKT,
56 .oq_intr_time = CN6XXX_OQ_INTR_TIME,
57 .pkts_per_intr = CN6XXX_OQ_PKTSPER_INTR,
58 }
59 ,
60
61 .num_nic_ports = DEFAULT_NUM_NIC_PORTS_66XX,
62 .num_def_rx_descs = CN6XXX_MAX_OQ_DESCRIPTORS,
63 .num_def_tx_descs = CN6XXX_MAX_IQ_DESCRIPTORS,
64 .def_rx_buf_size = CN6XXX_OQ_BUF_SIZE,
65
66
67 .nic_if_cfg[0] = {
68
69 .max_txqs = MAX_TXQS_PER_INTF,
70
71
72 .num_txqs = DEF_TXQS_PER_INTF,
73
74
75 .max_rxqs = MAX_RXQS_PER_INTF,
76
77
78 .num_rxqs = DEF_RXQS_PER_INTF,
79
80
81 .num_rx_descs = CN6XXX_MAX_OQ_DESCRIPTORS,
82
83
84 .num_tx_descs = CN6XXX_MAX_IQ_DESCRIPTORS,
85
86
87
88
89 .rx_buf_size = CN6XXX_OQ_BUF_SIZE,
90
91 .base_queue = BASE_QUEUE_NOT_REQUESTED,
92
93 .gmx_port_id = 0,
94 },
95
96 .nic_if_cfg[1] = {
97
98 .max_txqs = MAX_TXQS_PER_INTF,
99
100
101 .num_txqs = DEF_TXQS_PER_INTF,
102
103
104 .max_rxqs = MAX_RXQS_PER_INTF,
105
106
107 .num_rxqs = DEF_RXQS_PER_INTF,
108
109
110 .num_rx_descs = CN6XXX_MAX_OQ_DESCRIPTORS,
111
112
113 .num_tx_descs = CN6XXX_MAX_IQ_DESCRIPTORS,
114
115
116
117
118 .rx_buf_size = CN6XXX_OQ_BUF_SIZE,
119
120 .base_queue = BASE_QUEUE_NOT_REQUESTED,
121
122 .gmx_port_id = 1,
123 },
124
125
126 .misc = {
127
128 .oct_link_query_interval = 100,
129
130
131 .host_link_query_interval = 500,
132
133 .enable_sli_oq_bp = 0,
134
135
136 .ctrlq_grp = 1,
137 }
138 ,
139};
140
141
142
143
144
145static struct octeon_config default_cn68xx_conf = {
146 .card_type = LIO_410NV,
147 .card_name = LIO_410NV_NAME,
148
149
150 .iq = {
151 .max_iqs = CN6XXX_CFG_IO_QUEUES,
152 .pending_list_size =
153 (CN6XXX_MAX_IQ_DESCRIPTORS * CN6XXX_CFG_IO_QUEUES),
154 .instr_type = OCTEON_64BYTE_INSTR,
155 .db_min = CN6XXX_DB_MIN,
156 .db_timeout = CN6XXX_DB_TIMEOUT,
157 }
158 ,
159
160
161 .oq = {
162 .max_oqs = CN6XXX_CFG_IO_QUEUES,
163 .refill_threshold = CN6XXX_OQ_REFIL_THRESHOLD,
164 .oq_intr_pkt = CN6XXX_OQ_INTR_PKT,
165 .oq_intr_time = CN6XXX_OQ_INTR_TIME,
166 .pkts_per_intr = CN6XXX_OQ_PKTSPER_INTR,
167 }
168 ,
169
170 .num_nic_ports = DEFAULT_NUM_NIC_PORTS_68XX,
171 .num_def_rx_descs = CN6XXX_MAX_OQ_DESCRIPTORS,
172 .num_def_tx_descs = CN6XXX_MAX_IQ_DESCRIPTORS,
173 .def_rx_buf_size = CN6XXX_OQ_BUF_SIZE,
174
175 .nic_if_cfg[0] = {
176
177 .max_txqs = MAX_TXQS_PER_INTF,
178
179
180 .num_txqs = DEF_TXQS_PER_INTF,
181
182
183 .max_rxqs = MAX_RXQS_PER_INTF,
184
185
186 .num_rxqs = DEF_RXQS_PER_INTF,
187
188
189 .num_rx_descs = CN6XXX_MAX_OQ_DESCRIPTORS,
190
191
192 .num_tx_descs = CN6XXX_MAX_IQ_DESCRIPTORS,
193
194
195
196
197 .rx_buf_size = CN6XXX_OQ_BUF_SIZE,
198
199 .base_queue = BASE_QUEUE_NOT_REQUESTED,
200
201 .gmx_port_id = 0,
202 },
203
204 .nic_if_cfg[1] = {
205
206 .max_txqs = MAX_TXQS_PER_INTF,
207
208
209 .num_txqs = DEF_TXQS_PER_INTF,
210
211
212 .max_rxqs = MAX_RXQS_PER_INTF,
213
214
215 .num_rxqs = DEF_RXQS_PER_INTF,
216
217
218 .num_rx_descs = CN6XXX_MAX_OQ_DESCRIPTORS,
219
220
221 .num_tx_descs = CN6XXX_MAX_IQ_DESCRIPTORS,
222
223
224
225
226 .rx_buf_size = CN6XXX_OQ_BUF_SIZE,
227
228 .base_queue = BASE_QUEUE_NOT_REQUESTED,
229
230 .gmx_port_id = 1,
231 },
232
233 .nic_if_cfg[2] = {
234
235 .max_txqs = MAX_TXQS_PER_INTF,
236
237
238 .num_txqs = DEF_TXQS_PER_INTF,
239
240
241 .max_rxqs = MAX_RXQS_PER_INTF,
242
243
244 .num_rxqs = DEF_RXQS_PER_INTF,
245
246
247 .num_rx_descs = CN6XXX_MAX_OQ_DESCRIPTORS,
248
249
250 .num_tx_descs = CN6XXX_MAX_IQ_DESCRIPTORS,
251
252
253
254
255 .rx_buf_size = CN6XXX_OQ_BUF_SIZE,
256
257 .base_queue = BASE_QUEUE_NOT_REQUESTED,
258
259 .gmx_port_id = 2,
260 },
261
262 .nic_if_cfg[3] = {
263
264 .max_txqs = MAX_TXQS_PER_INTF,
265
266
267 .num_txqs = DEF_TXQS_PER_INTF,
268
269
270 .max_rxqs = MAX_RXQS_PER_INTF,
271
272
273 .num_rxqs = DEF_RXQS_PER_INTF,
274
275
276 .num_rx_descs = CN6XXX_MAX_OQ_DESCRIPTORS,
277
278
279 .num_tx_descs = CN6XXX_MAX_IQ_DESCRIPTORS,
280
281
282
283
284 .rx_buf_size = CN6XXX_OQ_BUF_SIZE,
285
286 .base_queue = BASE_QUEUE_NOT_REQUESTED,
287
288 .gmx_port_id = 3,
289 },
290
291
292 .misc = {
293
294 .oct_link_query_interval = 100,
295
296
297 .host_link_query_interval = 500,
298
299 .enable_sli_oq_bp = 0,
300
301
302 .ctrlq_grp = 1,
303 }
304 ,
305};
306
307
308
309
310static struct octeon_config default_cn68xx_210nv_conf = {
311 .card_type = LIO_210NV,
312 .card_name = LIO_210NV_NAME,
313
314
315
316 .iq = {
317 .max_iqs = CN6XXX_CFG_IO_QUEUES,
318 .pending_list_size =
319 (CN6XXX_MAX_IQ_DESCRIPTORS * CN6XXX_CFG_IO_QUEUES),
320 .instr_type = OCTEON_64BYTE_INSTR,
321 .db_min = CN6XXX_DB_MIN,
322 .db_timeout = CN6XXX_DB_TIMEOUT,
323 }
324 ,
325
326
327 .oq = {
328 .max_oqs = CN6XXX_CFG_IO_QUEUES,
329 .refill_threshold = CN6XXX_OQ_REFIL_THRESHOLD,
330 .oq_intr_pkt = CN6XXX_OQ_INTR_PKT,
331 .oq_intr_time = CN6XXX_OQ_INTR_TIME,
332 .pkts_per_intr = CN6XXX_OQ_PKTSPER_INTR,
333 }
334 ,
335
336 .num_nic_ports = DEFAULT_NUM_NIC_PORTS_68XX_210NV,
337 .num_def_rx_descs = CN6XXX_MAX_OQ_DESCRIPTORS,
338 .num_def_tx_descs = CN6XXX_MAX_IQ_DESCRIPTORS,
339 .def_rx_buf_size = CN6XXX_OQ_BUF_SIZE,
340
341 .nic_if_cfg[0] = {
342
343 .max_txqs = MAX_TXQS_PER_INTF,
344
345
346 .num_txqs = DEF_TXQS_PER_INTF,
347
348
349 .max_rxqs = MAX_RXQS_PER_INTF,
350
351
352 .num_rxqs = DEF_RXQS_PER_INTF,
353
354
355 .num_rx_descs = CN6XXX_MAX_OQ_DESCRIPTORS,
356
357
358 .num_tx_descs = CN6XXX_MAX_IQ_DESCRIPTORS,
359
360
361
362
363 .rx_buf_size = CN6XXX_OQ_BUF_SIZE,
364
365 .base_queue = BASE_QUEUE_NOT_REQUESTED,
366
367 .gmx_port_id = 0,
368 },
369
370 .nic_if_cfg[1] = {
371
372 .max_txqs = MAX_TXQS_PER_INTF,
373
374
375 .num_txqs = DEF_TXQS_PER_INTF,
376
377
378 .max_rxqs = MAX_RXQS_PER_INTF,
379
380
381 .num_rxqs = DEF_RXQS_PER_INTF,
382
383
384 .num_rx_descs = CN6XXX_MAX_OQ_DESCRIPTORS,
385
386
387 .num_tx_descs = CN6XXX_MAX_IQ_DESCRIPTORS,
388
389
390
391
392 .rx_buf_size = CN6XXX_OQ_BUF_SIZE,
393
394 .base_queue = BASE_QUEUE_NOT_REQUESTED,
395
396 .gmx_port_id = 1,
397 },
398
399
400 .misc = {
401
402 .oct_link_query_interval = 100,
403
404
405 .host_link_query_interval = 500,
406
407 .enable_sli_oq_bp = 0,
408
409
410 .ctrlq_grp = 1,
411 }
412 ,
413};
414
415static struct octeon_config default_cn23xx_conf = {
416 .card_type = LIO_23XX,
417 .card_name = LIO_23XX_NAME,
418
419 .iq = {
420 .max_iqs = CN23XX_CFG_IO_QUEUES,
421 .pending_list_size = (CN23XX_DEFAULT_IQ_DESCRIPTORS *
422 CN23XX_CFG_IO_QUEUES),
423 .instr_type = OCTEON_64BYTE_INSTR,
424 .db_min = CN23XX_DB_MIN,
425 .db_timeout = CN23XX_DB_TIMEOUT,
426 .iq_intr_pkt = CN23XX_DEF_IQ_INTR_THRESHOLD,
427 },
428
429
430 .oq = {
431 .max_oqs = CN23XX_CFG_IO_QUEUES,
432 .pkts_per_intr = CN23XX_OQ_PKTSPER_INTR,
433 .refill_threshold = CN23XX_OQ_REFIL_THRESHOLD,
434 .oq_intr_pkt = CN23XX_OQ_INTR_PKT,
435 .oq_intr_time = CN23XX_OQ_INTR_TIME,
436 },
437
438 .num_nic_ports = DEFAULT_NUM_NIC_PORTS_23XX,
439 .num_def_rx_descs = CN23XX_DEFAULT_OQ_DESCRIPTORS,
440 .num_def_tx_descs = CN23XX_DEFAULT_IQ_DESCRIPTORS,
441 .def_rx_buf_size = CN23XX_OQ_BUF_SIZE,
442
443
444 .nic_if_cfg[0] = {
445
446 .max_txqs = MAX_TXQS_PER_INTF,
447
448
449 .num_txqs = DEF_TXQS_PER_INTF,
450
451
452 .max_rxqs = MAX_RXQS_PER_INTF,
453
454
455 .num_rxqs = DEF_RXQS_PER_INTF,
456
457
458 .num_rx_descs = CN23XX_DEFAULT_OQ_DESCRIPTORS,
459
460
461 .num_tx_descs = CN23XX_DEFAULT_IQ_DESCRIPTORS,
462
463
464
465
466 .rx_buf_size = CN23XX_OQ_BUF_SIZE,
467
468 .base_queue = BASE_QUEUE_NOT_REQUESTED,
469
470 .gmx_port_id = 0,
471 },
472
473 .nic_if_cfg[1] = {
474
475 .max_txqs = MAX_TXQS_PER_INTF,
476
477
478 .num_txqs = DEF_TXQS_PER_INTF,
479
480
481 .max_rxqs = MAX_RXQS_PER_INTF,
482
483
484 .num_rxqs = DEF_RXQS_PER_INTF,
485
486
487 .num_rx_descs = CN23XX_DEFAULT_OQ_DESCRIPTORS,
488
489
490 .num_tx_descs = CN23XX_DEFAULT_IQ_DESCRIPTORS,
491
492
493
494
495 .rx_buf_size = CN23XX_OQ_BUF_SIZE,
496
497 .base_queue = BASE_QUEUE_NOT_REQUESTED,
498
499 .gmx_port_id = 1,
500 },
501
502 .misc = {
503
504 .oct_link_query_interval = 100,
505
506
507 .host_link_query_interval = 500,
508
509 .enable_sli_oq_bp = 0,
510
511
512 .ctrlq_grp = 1,
513 }
514};
515
516static struct octeon_config_ptr {
517 u32 conf_type;
518} oct_conf_info[MAX_OCTEON_DEVICES] = {
519 {
520 OCTEON_CONFIG_TYPE_DEFAULT,
521 }, {
522 OCTEON_CONFIG_TYPE_DEFAULT,
523 }, {
524 OCTEON_CONFIG_TYPE_DEFAULT,
525 }, {
526 OCTEON_CONFIG_TYPE_DEFAULT,
527 },
528};
529
530static char oct_dev_state_str[OCT_DEV_STATES + 1][32] = {
531 "BEGIN", "PCI-ENABLE-DONE", "PCI-MAP-DONE", "DISPATCH-INIT-DONE",
532 "IQ-INIT-DONE", "SCBUFF-POOL-INIT-DONE", "RESPLIST-INIT-DONE",
533 "DROQ-INIT-DONE", "MBOX-SETUP-DONE", "MSIX-ALLOC-VECTOR-DONE",
534 "INTR-SET-DONE", "IO-QUEUES-INIT-DONE", "CONSOLE-INIT-DONE",
535 "HOST-READY", "CORE-READY", "RUNNING", "IN-RESET",
536 "INVALID"
537};
538
539static char oct_dev_app_str[CVM_DRV_APP_COUNT + 1][32] = {
540 "BASE", "NIC", "UNKNOWN"};
541
542static struct octeon_device *octeon_device[MAX_OCTEON_DEVICES];
543static atomic_t adapter_refcounts[MAX_OCTEON_DEVICES];
544static atomic_t adapter_fw_states[MAX_OCTEON_DEVICES];
545
546static u32 octeon_device_count;
547
548static DEFINE_SPINLOCK(octeon_devices_lock);
549
550static struct octeon_core_setup core_setup[MAX_OCTEON_DEVICES];
551
552static void oct_set_config_info(int oct_id, int conf_type)
553{
554 if (conf_type < 0 || conf_type > (NUM_OCTEON_CONFS - 1))
555 conf_type = OCTEON_CONFIG_TYPE_DEFAULT;
556 oct_conf_info[oct_id].conf_type = conf_type;
557}
558
559void octeon_init_device_list(int conf_type)
560{
561 int i;
562
563 memset(octeon_device, 0, (sizeof(void *) * MAX_OCTEON_DEVICES));
564 for (i = 0; i < MAX_OCTEON_DEVICES; i++)
565 oct_set_config_info(i, conf_type);
566}
567
568static void *__retrieve_octeon_config_info(struct octeon_device *oct,
569 u16 card_type)
570{
571 u32 oct_id = oct->octeon_id;
572 void *ret = NULL;
573
574 switch (oct_conf_info[oct_id].conf_type) {
575 case OCTEON_CONFIG_TYPE_DEFAULT:
576 if (oct->chip_id == OCTEON_CN66XX) {
577 ret = &default_cn66xx_conf;
578 } else if ((oct->chip_id == OCTEON_CN68XX) &&
579 (card_type == LIO_210NV)) {
580 ret = &default_cn68xx_210nv_conf;
581 } else if ((oct->chip_id == OCTEON_CN68XX) &&
582 (card_type == LIO_410NV)) {
583 ret = &default_cn68xx_conf;
584 } else if (oct->chip_id == OCTEON_CN23XX_PF_VID) {
585 ret = &default_cn23xx_conf;
586 } else if (oct->chip_id == OCTEON_CN23XX_VF_VID) {
587 ret = &default_cn23xx_conf;
588 }
589 break;
590 default:
591 break;
592 }
593 return ret;
594}
595
596static int __verify_octeon_config_info(struct octeon_device *oct, void *conf)
597{
598 switch (oct->chip_id) {
599 case OCTEON_CN66XX:
600 case OCTEON_CN68XX:
601 return lio_validate_cn6xxx_config_info(oct, conf);
602 case OCTEON_CN23XX_PF_VID:
603 case OCTEON_CN23XX_VF_VID:
604 return 0;
605 default:
606 break;
607 }
608
609 return 1;
610}
611
612void *oct_get_config_info(struct octeon_device *oct, u16 card_type)
613{
614 void *conf = NULL;
615
616 conf = __retrieve_octeon_config_info(oct, card_type);
617 if (!conf)
618 return NULL;
619
620 if (__verify_octeon_config_info(oct, conf)) {
621 dev_err(&oct->pci_dev->dev, "Configuration verification failed\n");
622 return NULL;
623 }
624
625 return conf;
626}
627
628char *lio_get_state_string(atomic_t *state_ptr)
629{
630 s32 istate = (s32)atomic_read(state_ptr);
631
632 if (istate > OCT_DEV_STATES || istate < 0)
633 return oct_dev_state_str[OCT_DEV_STATE_INVALID];
634 return oct_dev_state_str[istate];
635}
636
637static char *get_oct_app_string(u32 app_mode)
638{
639 if (app_mode <= CVM_DRV_APP_END)
640 return oct_dev_app_str[app_mode - CVM_DRV_APP_START];
641 return oct_dev_app_str[CVM_DRV_INVALID_APP - CVM_DRV_APP_START];
642}
643
644void octeon_free_device_mem(struct octeon_device *oct)
645{
646 int i;
647
648 for (i = 0; i < MAX_OCTEON_OUTPUT_QUEUES(oct); i++) {
649 if (oct->io_qmask.oq & BIT_ULL(i))
650 vfree(oct->droq[i]);
651 }
652
653 for (i = 0; i < MAX_OCTEON_INSTR_QUEUES(oct); i++) {
654 if (oct->io_qmask.iq & BIT_ULL(i))
655 vfree(oct->instr_queue[i]);
656 }
657
658 i = oct->octeon_id;
659 vfree(oct);
660
661 octeon_device[i] = NULL;
662 octeon_device_count--;
663}
664
665static struct octeon_device *octeon_allocate_device_mem(u32 pci_id,
666 u32 priv_size)
667{
668 struct octeon_device *oct;
669 u8 *buf = NULL;
670 u32 octdevsize = 0, configsize = 0, size;
671
672 switch (pci_id) {
673 case OCTEON_CN68XX:
674 case OCTEON_CN66XX:
675 configsize = sizeof(struct octeon_cn6xxx);
676 break;
677
678 case OCTEON_CN23XX_PF_VID:
679 configsize = sizeof(struct octeon_cn23xx_pf);
680 break;
681 case OCTEON_CN23XX_VF_VID:
682 configsize = sizeof(struct octeon_cn23xx_vf);
683 break;
684 default:
685 pr_err("%s: Unknown PCI Device: 0x%x\n",
686 __func__,
687 pci_id);
688 return NULL;
689 }
690
691 if (configsize & 0x7)
692 configsize += (8 - (configsize & 0x7));
693
694 octdevsize = sizeof(struct octeon_device);
695 if (octdevsize & 0x7)
696 octdevsize += (8 - (octdevsize & 0x7));
697
698 if (priv_size & 0x7)
699 priv_size += (8 - (priv_size & 0x7));
700
701 size = octdevsize + priv_size + configsize +
702 (sizeof(struct octeon_dispatch) * DISPATCH_LIST_SIZE);
703
704 buf = vzalloc(size);
705 if (!buf)
706 return NULL;
707
708 oct = (struct octeon_device *)buf;
709 oct->priv = (void *)(buf + octdevsize);
710 oct->chip = (void *)(buf + octdevsize + priv_size);
711 oct->dispatch.dlist = (struct octeon_dispatch *)
712 (buf + octdevsize + priv_size + configsize);
713
714 return oct;
715}
716
717struct octeon_device *octeon_allocate_device(u32 pci_id,
718 u32 priv_size)
719{
720 u32 oct_idx = 0;
721 struct octeon_device *oct = NULL;
722
723 spin_lock(&octeon_devices_lock);
724
725 for (oct_idx = 0; oct_idx < MAX_OCTEON_DEVICES; oct_idx++)
726 if (!octeon_device[oct_idx])
727 break;
728
729 if (oct_idx < MAX_OCTEON_DEVICES) {
730 oct = octeon_allocate_device_mem(pci_id, priv_size);
731 if (oct) {
732 octeon_device_count++;
733 octeon_device[oct_idx] = oct;
734 }
735 }
736
737 spin_unlock(&octeon_devices_lock);
738 if (!oct)
739 return NULL;
740
741 spin_lock_init(&oct->pci_win_lock);
742 spin_lock_init(&oct->mem_access_lock);
743
744 oct->octeon_id = oct_idx;
745 snprintf(oct->device_name, sizeof(oct->device_name),
746 "LiquidIO%d", (oct->octeon_id));
747
748 return oct;
749}
750
751
752
753
754
755
756
757
758
759int octeon_register_device(struct octeon_device *oct,
760 int bus, int dev, int func, int is_pf)
761{
762 int idx, refcount;
763
764 oct->loc.bus = bus;
765 oct->loc.dev = dev;
766 oct->loc.func = func;
767
768 oct->adapter_refcount = &adapter_refcounts[oct->octeon_id];
769 atomic_set(oct->adapter_refcount, 0);
770
771
772 oct->adapter_fw_state = &adapter_fw_states[oct->octeon_id];
773 atomic_set(oct->adapter_fw_state, FW_NEEDS_TO_BE_LOADED);
774
775 spin_lock(&octeon_devices_lock);
776 for (idx = (int)oct->octeon_id - 1; idx >= 0; idx--) {
777 if (!octeon_device[idx]) {
778 dev_err(&oct->pci_dev->dev,
779 "%s: Internal driver error, missing dev",
780 __func__);
781 spin_unlock(&octeon_devices_lock);
782 atomic_inc(oct->adapter_refcount);
783 return 1;
784 }
785
786
787
788 if ((octeon_device[idx]->loc.bus == bus) &&
789 (octeon_device[idx]->loc.dev == dev)) {
790 oct->adapter_refcount =
791 octeon_device[idx]->adapter_refcount;
792 oct->adapter_fw_state =
793 octeon_device[idx]->adapter_fw_state;
794 break;
795 }
796 }
797 spin_unlock(&octeon_devices_lock);
798
799 atomic_inc(oct->adapter_refcount);
800 refcount = atomic_read(oct->adapter_refcount);
801
802 dev_dbg(&oct->pci_dev->dev, "%s: %02x:%02x:%d refcount %u", __func__,
803 oct->loc.bus, oct->loc.dev, oct->loc.func, refcount);
804
805 return refcount;
806}
807
808
809
810
811
812int octeon_deregister_device(struct octeon_device *oct)
813{
814 int refcount;
815
816 atomic_dec(oct->adapter_refcount);
817 refcount = atomic_read(oct->adapter_refcount);
818
819 dev_dbg(&oct->pci_dev->dev, "%s: %04d:%02d:%d refcount %u", __func__,
820 oct->loc.bus, oct->loc.dev, oct->loc.func, refcount);
821
822 return refcount;
823}
824
825int
826octeon_allocate_ioq_vector(struct octeon_device *oct, u32 num_ioqs)
827{
828 struct octeon_ioq_vector *ioq_vector;
829 int cpu_num;
830 int size;
831 int i;
832
833 size = sizeof(struct octeon_ioq_vector) * num_ioqs;
834
835 oct->ioq_vector = vzalloc(size);
836 if (!oct->ioq_vector)
837 return -1;
838 for (i = 0; i < num_ioqs; i++) {
839 ioq_vector = &oct->ioq_vector[i];
840 ioq_vector->oct_dev = oct;
841 ioq_vector->iq_index = i;
842 ioq_vector->droq_index = i;
843 ioq_vector->mbox = oct->mbox[i];
844
845 cpu_num = i % num_online_cpus();
846 cpumask_set_cpu(cpu_num, &ioq_vector->affinity_mask);
847
848 if (oct->chip_id == OCTEON_CN23XX_PF_VID)
849 ioq_vector->ioq_num = i + oct->sriov_info.pf_srn;
850 else
851 ioq_vector->ioq_num = i;
852 }
853
854 return 0;
855}
856
857void
858octeon_free_ioq_vector(struct octeon_device *oct)
859{
860 vfree(oct->ioq_vector);
861}
862
863
864int octeon_setup_instr_queues(struct octeon_device *oct)
865{
866 u32 num_descs = 0;
867 u32 iq_no = 0;
868 union oct_txpciq txpciq;
869 int numa_node = dev_to_node(&oct->pci_dev->dev);
870
871 if (OCTEON_CN6XXX(oct))
872 num_descs =
873 CFG_GET_NUM_DEF_TX_DESCS(CHIP_CONF(oct, cn6xxx));
874 else if (OCTEON_CN23XX_PF(oct))
875 num_descs = CFG_GET_NUM_DEF_TX_DESCS(CHIP_CONF(oct, cn23xx_pf));
876 else if (OCTEON_CN23XX_VF(oct))
877 num_descs = CFG_GET_NUM_DEF_TX_DESCS(CHIP_CONF(oct, cn23xx_vf));
878
879 oct->num_iqs = 0;
880
881 oct->instr_queue[0] = vzalloc_node(sizeof(*oct->instr_queue[0]),
882 numa_node);
883 if (!oct->instr_queue[0])
884 oct->instr_queue[0] =
885 vzalloc(sizeof(struct octeon_instr_queue));
886 if (!oct->instr_queue[0])
887 return 1;
888 memset(oct->instr_queue[0], 0, sizeof(struct octeon_instr_queue));
889 oct->instr_queue[0]->q_index = 0;
890 oct->instr_queue[0]->app_ctx = (void *)(size_t)0;
891 oct->instr_queue[0]->ifidx = 0;
892 txpciq.u64 = 0;
893 txpciq.s.q_no = iq_no;
894 txpciq.s.pkind = oct->pfvf_hsword.pkind;
895 txpciq.s.use_qpg = 0;
896 txpciq.s.qpg = 0;
897 if (octeon_init_instr_queue(oct, txpciq, num_descs)) {
898
899 vfree(oct->instr_queue[0]);
900 oct->instr_queue[0] = NULL;
901 return 1;
902 }
903
904 oct->num_iqs++;
905 return 0;
906}
907
908int octeon_setup_output_queues(struct octeon_device *oct)
909{
910 u32 num_descs = 0;
911 u32 desc_size = 0;
912 u32 oq_no = 0;
913 int numa_node = dev_to_node(&oct->pci_dev->dev);
914
915 if (OCTEON_CN6XXX(oct)) {
916 num_descs =
917 CFG_GET_NUM_DEF_RX_DESCS(CHIP_CONF(oct, cn6xxx));
918 desc_size =
919 CFG_GET_DEF_RX_BUF_SIZE(CHIP_CONF(oct, cn6xxx));
920 } else if (OCTEON_CN23XX_PF(oct)) {
921 num_descs = CFG_GET_NUM_DEF_RX_DESCS(CHIP_CONF(oct, cn23xx_pf));
922 desc_size = CFG_GET_DEF_RX_BUF_SIZE(CHIP_CONF(oct, cn23xx_pf));
923 } else if (OCTEON_CN23XX_VF(oct)) {
924 num_descs = CFG_GET_NUM_DEF_RX_DESCS(CHIP_CONF(oct, cn23xx_vf));
925 desc_size = CFG_GET_DEF_RX_BUF_SIZE(CHIP_CONF(oct, cn23xx_vf));
926 }
927 oct->num_oqs = 0;
928 oct->droq[0] = vzalloc_node(sizeof(*oct->droq[0]), numa_node);
929 if (!oct->droq[0])
930 oct->droq[0] = vzalloc(sizeof(*oct->droq[0]));
931 if (!oct->droq[0])
932 return 1;
933
934 if (octeon_init_droq(oct, oq_no, num_descs, desc_size, NULL)) {
935 vfree(oct->droq[oq_no]);
936 oct->droq[oq_no] = NULL;
937 return 1;
938 }
939 oct->num_oqs++;
940
941 return 0;
942}
943
944int octeon_set_io_queues_off(struct octeon_device *oct)
945{
946 int loop = BUSY_READING_REG_VF_LOOP_COUNT;
947
948 if (OCTEON_CN6XXX(oct)) {
949 octeon_write_csr(oct, CN6XXX_SLI_PKT_INSTR_ENB, 0);
950 octeon_write_csr(oct, CN6XXX_SLI_PKT_OUT_ENB, 0);
951 } else if (oct->chip_id == OCTEON_CN23XX_VF_VID) {
952 u32 q_no;
953
954
955
956
957
958 for (q_no = 0; q_no < oct->sriov_info.rings_per_vf; q_no++) {
959 u64 reg_val = octeon_read_csr64(
960 oct, CN23XX_VF_SLI_IQ_PKT_CONTROL64(q_no));
961
962 while ((reg_val & CN23XX_PKT_INPUT_CTL_RST) &&
963 !(reg_val & CN23XX_PKT_INPUT_CTL_QUIET) &&
964 loop) {
965 reg_val = octeon_read_csr64(
966 oct, CN23XX_SLI_IQ_PKT_CONTROL64(q_no));
967 loop--;
968 }
969 if (!loop) {
970 dev_err(&oct->pci_dev->dev,
971 "clearing the reset reg failed or setting the quiet reg failed for qno: %u\n",
972 q_no);
973 return -1;
974 }
975
976 reg_val = reg_val & ~CN23XX_PKT_INPUT_CTL_RST;
977 octeon_write_csr64(oct,
978 CN23XX_SLI_IQ_PKT_CONTROL64(q_no),
979 reg_val);
980
981 reg_val = octeon_read_csr64(
982 oct, CN23XX_SLI_IQ_PKT_CONTROL64(q_no));
983 if (reg_val & CN23XX_PKT_INPUT_CTL_RST) {
984 dev_err(&oct->pci_dev->dev,
985 "unable to reset qno %u\n", q_no);
986 return -1;
987 }
988 }
989 }
990 return 0;
991}
992
993void octeon_set_droq_pkt_op(struct octeon_device *oct,
994 u32 q_no,
995 u32 enable)
996{
997 u32 reg_val = 0;
998
999
1000 if (OCTEON_CN6XXX(oct)) {
1001 reg_val = octeon_read_csr(oct, CN6XXX_SLI_PKT_OUT_ENB);
1002
1003 if (enable)
1004 reg_val = reg_val | (1 << q_no);
1005 else
1006 reg_val = reg_val & (~(1 << q_no));
1007
1008 octeon_write_csr(oct, CN6XXX_SLI_PKT_OUT_ENB, reg_val);
1009 }
1010}
1011
1012int octeon_init_dispatch_list(struct octeon_device *oct)
1013{
1014 u32 i;
1015
1016 oct->dispatch.count = 0;
1017
1018 for (i = 0; i < DISPATCH_LIST_SIZE; i++) {
1019 oct->dispatch.dlist[i].opcode = 0;
1020 INIT_LIST_HEAD(&oct->dispatch.dlist[i].list);
1021 }
1022
1023 for (i = 0; i <= REQTYPE_LAST; i++)
1024 octeon_register_reqtype_free_fn(oct, i, NULL);
1025
1026 spin_lock_init(&oct->dispatch.lock);
1027
1028 return 0;
1029}
1030
1031void octeon_delete_dispatch_list(struct octeon_device *oct)
1032{
1033 u32 i;
1034 struct list_head freelist, *temp, *tmp2;
1035
1036 INIT_LIST_HEAD(&freelist);
1037
1038 spin_lock_bh(&oct->dispatch.lock);
1039
1040 for (i = 0; i < DISPATCH_LIST_SIZE; i++) {
1041 struct list_head *dispatch;
1042
1043 dispatch = &oct->dispatch.dlist[i].list;
1044 while (dispatch->next != dispatch) {
1045 temp = dispatch->next;
1046 list_move_tail(temp, &freelist);
1047 }
1048
1049 oct->dispatch.dlist[i].opcode = 0;
1050 }
1051
1052 oct->dispatch.count = 0;
1053
1054 spin_unlock_bh(&oct->dispatch.lock);
1055
1056 list_for_each_safe(temp, tmp2, &freelist) {
1057 list_del(temp);
1058 kfree(temp);
1059 }
1060}
1061
1062octeon_dispatch_fn_t
1063octeon_get_dispatch(struct octeon_device *octeon_dev, u16 opcode,
1064 u16 subcode)
1065{
1066 u32 idx;
1067 struct list_head *dispatch;
1068 octeon_dispatch_fn_t fn = NULL;
1069 u16 combined_opcode = OPCODE_SUBCODE(opcode, subcode);
1070
1071 idx = combined_opcode & OCTEON_OPCODE_MASK;
1072
1073 spin_lock_bh(&octeon_dev->dispatch.lock);
1074
1075 if (octeon_dev->dispatch.count == 0) {
1076 spin_unlock_bh(&octeon_dev->dispatch.lock);
1077 return NULL;
1078 }
1079
1080 if (!(octeon_dev->dispatch.dlist[idx].opcode)) {
1081 spin_unlock_bh(&octeon_dev->dispatch.lock);
1082 return NULL;
1083 }
1084
1085 if (octeon_dev->dispatch.dlist[idx].opcode == combined_opcode) {
1086 fn = octeon_dev->dispatch.dlist[idx].dispatch_fn;
1087 } else {
1088 list_for_each(dispatch,
1089 &octeon_dev->dispatch.dlist[idx].list) {
1090 if (((struct octeon_dispatch *)dispatch)->opcode ==
1091 combined_opcode) {
1092 fn = ((struct octeon_dispatch *)
1093 dispatch)->dispatch_fn;
1094 break;
1095 }
1096 }
1097 }
1098
1099 spin_unlock_bh(&octeon_dev->dispatch.lock);
1100 return fn;
1101}
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120int
1121octeon_register_dispatch_fn(struct octeon_device *oct,
1122 u16 opcode,
1123 u16 subcode,
1124 octeon_dispatch_fn_t fn, void *fn_arg)
1125{
1126 u32 idx;
1127 octeon_dispatch_fn_t pfn;
1128 u16 combined_opcode = OPCODE_SUBCODE(opcode, subcode);
1129
1130 idx = combined_opcode & OCTEON_OPCODE_MASK;
1131
1132 spin_lock_bh(&oct->dispatch.lock);
1133
1134 if (oct->dispatch.dlist[idx].opcode == 0) {
1135 oct->dispatch.dlist[idx].opcode = combined_opcode;
1136 oct->dispatch.dlist[idx].dispatch_fn = fn;
1137 oct->dispatch.dlist[idx].arg = fn_arg;
1138 oct->dispatch.count++;
1139 spin_unlock_bh(&oct->dispatch.lock);
1140 return 0;
1141 }
1142
1143 spin_unlock_bh(&oct->dispatch.lock);
1144
1145
1146
1147
1148 pfn = octeon_get_dispatch(oct, opcode, subcode);
1149 if (!pfn) {
1150 struct octeon_dispatch *dispatch;
1151
1152 dev_dbg(&oct->pci_dev->dev,
1153 "Adding opcode to dispatch list linked list\n");
1154 dispatch = kmalloc(sizeof(*dispatch), GFP_KERNEL);
1155 if (!dispatch)
1156 return 1;
1157
1158 dispatch->opcode = combined_opcode;
1159 dispatch->dispatch_fn = fn;
1160 dispatch->arg = fn_arg;
1161
1162
1163
1164
1165 spin_lock_bh(&oct->dispatch.lock);
1166 list_add(&dispatch->list, &oct->dispatch.dlist[idx].list);
1167 oct->dispatch.count++;
1168 spin_unlock_bh(&oct->dispatch.lock);
1169
1170 } else {
1171 if (pfn == fn &&
1172 octeon_get_dispatch_arg(oct, opcode, subcode) == fn_arg)
1173 return 0;
1174
1175 dev_err(&oct->pci_dev->dev,
1176 "Found previously registered dispatch fn for opcode/subcode: %x/%x\n",
1177 opcode, subcode);
1178 return 1;
1179 }
1180
1181 return 0;
1182}
1183
1184int octeon_core_drv_init(struct octeon_recv_info *recv_info, void *buf)
1185{
1186 u32 i;
1187 char app_name[16];
1188 struct octeon_device *oct = (struct octeon_device *)buf;
1189 struct octeon_recv_pkt *recv_pkt = recv_info->recv_pkt;
1190 struct octeon_core_setup *cs = NULL;
1191 u32 num_nic_ports = 0;
1192
1193 if (OCTEON_CN6XXX(oct))
1194 num_nic_ports =
1195 CFG_GET_NUM_NIC_PORTS(CHIP_CONF(oct, cn6xxx));
1196 else if (OCTEON_CN23XX_PF(oct))
1197 num_nic_ports =
1198 CFG_GET_NUM_NIC_PORTS(CHIP_CONF(oct, cn23xx_pf));
1199
1200 if (atomic_read(&oct->status) >= OCT_DEV_RUNNING) {
1201 dev_err(&oct->pci_dev->dev, "Received CORE OK when device state is 0x%x\n",
1202 atomic_read(&oct->status));
1203 goto core_drv_init_err;
1204 }
1205
1206 strncpy(app_name,
1207 get_oct_app_string(
1208 (u32)recv_pkt->rh.r_core_drv_init.app_mode),
1209 sizeof(app_name) - 1);
1210 oct->app_mode = (u32)recv_pkt->rh.r_core_drv_init.app_mode;
1211 if (recv_pkt->rh.r_core_drv_init.app_mode == CVM_DRV_NIC_APP) {
1212 oct->fw_info.max_nic_ports =
1213 (u32)recv_pkt->rh.r_core_drv_init.max_nic_ports;
1214 oct->fw_info.num_gmx_ports =
1215 (u32)recv_pkt->rh.r_core_drv_init.num_gmx_ports;
1216 }
1217
1218 if (oct->fw_info.max_nic_ports < num_nic_ports) {
1219 dev_err(&oct->pci_dev->dev,
1220 "Config has more ports than firmware allows (%d > %d).\n",
1221 num_nic_ports, oct->fw_info.max_nic_ports);
1222 goto core_drv_init_err;
1223 }
1224 oct->fw_info.app_cap_flags = recv_pkt->rh.r_core_drv_init.app_cap_flags;
1225 oct->fw_info.app_mode = (u32)recv_pkt->rh.r_core_drv_init.app_mode;
1226 oct->pfvf_hsword.app_mode = (u32)recv_pkt->rh.r_core_drv_init.app_mode;
1227
1228 oct->pfvf_hsword.pkind = recv_pkt->rh.r_core_drv_init.pkind;
1229
1230 for (i = 0; i < oct->num_iqs; i++)
1231 oct->instr_queue[i]->txpciq.s.pkind = oct->pfvf_hsword.pkind;
1232
1233 atomic_set(&oct->status, OCT_DEV_CORE_OK);
1234
1235 cs = &core_setup[oct->octeon_id];
1236
1237 if (recv_pkt->buffer_size[0] != (sizeof(*cs) + OCT_DROQ_INFO_SIZE)) {
1238 dev_dbg(&oct->pci_dev->dev, "Core setup bytes expected %u found %d\n",
1239 (u32)sizeof(*cs),
1240 recv_pkt->buffer_size[0]);
1241 }
1242
1243 memcpy(cs, get_rbd(
1244 recv_pkt->buffer_ptr[0]) + OCT_DROQ_INFO_SIZE, sizeof(*cs));
1245
1246 strncpy(oct->boardinfo.name, cs->boardname, OCT_BOARD_NAME);
1247 strncpy(oct->boardinfo.serial_number, cs->board_serial_number,
1248 OCT_SERIAL_LEN);
1249
1250 octeon_swap_8B_data((u64 *)cs, (sizeof(*cs) >> 3));
1251
1252 oct->boardinfo.major = cs->board_rev_major;
1253 oct->boardinfo.minor = cs->board_rev_minor;
1254
1255 dev_info(&oct->pci_dev->dev,
1256 "Running %s (%llu Hz)\n",
1257 app_name, CVM_CAST64(cs->corefreq));
1258
1259core_drv_init_err:
1260 for (i = 0; i < recv_pkt->buffer_count; i++)
1261 recv_buffer_free(recv_pkt->buffer_ptr[i]);
1262 octeon_free_recv_info(recv_info);
1263 return 0;
1264}
1265
1266int octeon_get_tx_qsize(struct octeon_device *oct, u32 q_no)
1267
1268{
1269 if (oct && (q_no < MAX_OCTEON_INSTR_QUEUES(oct)) &&
1270 (oct->io_qmask.iq & BIT_ULL(q_no)))
1271 return oct->instr_queue[q_no]->max_count;
1272
1273 return -1;
1274}
1275
1276int octeon_get_rx_qsize(struct octeon_device *oct, u32 q_no)
1277{
1278 if (oct && (q_no < MAX_OCTEON_OUTPUT_QUEUES(oct)) &&
1279 (oct->io_qmask.oq & BIT_ULL(q_no)))
1280 return oct->droq[q_no]->max_count;
1281 return -1;
1282}
1283
1284
1285struct octeon_config *octeon_get_conf(struct octeon_device *oct)
1286{
1287 struct octeon_config *default_oct_conf = NULL;
1288
1289
1290
1291
1292
1293 if (OCTEON_CN6XXX(oct)) {
1294 default_oct_conf =
1295 (struct octeon_config *)(CHIP_CONF(oct, cn6xxx));
1296 } else if (OCTEON_CN23XX_PF(oct)) {
1297 default_oct_conf = (struct octeon_config *)
1298 (CHIP_CONF(oct, cn23xx_pf));
1299 } else if (OCTEON_CN23XX_VF(oct)) {
1300 default_oct_conf = (struct octeon_config *)
1301 (CHIP_CONF(oct, cn23xx_vf));
1302 }
1303 return default_oct_conf;
1304}
1305
1306
1307#define CNXX_SLI_SCRATCH1 0x3C0
1308
1309
1310
1311
1312
1313
1314struct octeon_device *lio_get_device(u32 octeon_id)
1315{
1316 if (octeon_id >= MAX_OCTEON_DEVICES)
1317 return NULL;
1318 else
1319 return octeon_device[octeon_id];
1320}
1321
1322u64 lio_pci_readq(struct octeon_device *oct, u64 addr)
1323{
1324 u64 val64;
1325 unsigned long flags;
1326 u32 addrhi;
1327
1328 spin_lock_irqsave(&oct->pci_win_lock, flags);
1329
1330
1331
1332
1333 addrhi = (addr >> 32);
1334 if ((oct->chip_id == OCTEON_CN66XX) ||
1335 (oct->chip_id == OCTEON_CN68XX) ||
1336 (oct->chip_id == OCTEON_CN23XX_PF_VID))
1337 addrhi |= 0x00060000;
1338 writel(addrhi, oct->reg_list.pci_win_rd_addr_hi);
1339
1340
1341 readl(oct->reg_list.pci_win_rd_addr_hi);
1342
1343 writel(addr & 0xffffffff, oct->reg_list.pci_win_rd_addr_lo);
1344 readl(oct->reg_list.pci_win_rd_addr_lo);
1345
1346 val64 = readq(oct->reg_list.pci_win_rd_data);
1347
1348 spin_unlock_irqrestore(&oct->pci_win_lock, flags);
1349
1350 return val64;
1351}
1352
1353void lio_pci_writeq(struct octeon_device *oct,
1354 u64 val,
1355 u64 addr)
1356{
1357 unsigned long flags;
1358
1359 spin_lock_irqsave(&oct->pci_win_lock, flags);
1360
1361 writeq(addr, oct->reg_list.pci_win_wr_addr);
1362
1363
1364 writel(val >> 32, oct->reg_list.pci_win_wr_data_hi);
1365
1366 readl(oct->reg_list.pci_win_wr_data_hi);
1367
1368 writel(val & 0xffffffff, oct->reg_list.pci_win_wr_data_lo);
1369
1370 spin_unlock_irqrestore(&oct->pci_win_lock, flags);
1371}
1372
1373int octeon_mem_access_ok(struct octeon_device *oct)
1374{
1375 u64 access_okay = 0;
1376 u64 lmc0_reset_ctl;
1377
1378
1379 if (OCTEON_CN23XX_PF(oct)) {
1380 lmc0_reset_ctl = lio_pci_readq(oct, CN23XX_LMC0_RESET_CTL);
1381 access_okay =
1382 (lmc0_reset_ctl & CN23XX_LMC0_RESET_CTL_DDR3RST_MASK);
1383 } else {
1384 lmc0_reset_ctl = lio_pci_readq(oct, CN6XXX_LMC0_RESET_CTL);
1385 access_okay =
1386 (lmc0_reset_ctl & CN6XXX_LMC0_RESET_CTL_DDR3RST_MASK);
1387 }
1388
1389 return access_okay ? 0 : 1;
1390}
1391
1392int octeon_wait_for_ddr_init(struct octeon_device *oct, u32 *timeout)
1393{
1394 int ret = 1;
1395 u32 ms;
1396
1397 if (!timeout)
1398 return ret;
1399
1400 for (ms = 0; (ret != 0) && ((*timeout == 0) || (ms <= *timeout));
1401 ms += HZ / 10) {
1402 ret = octeon_mem_access_ok(oct);
1403
1404
1405 if (ret)
1406 schedule_timeout_uninterruptible(HZ / 10);
1407 }
1408
1409 return ret;
1410}
1411
1412
1413
1414
1415
1416
1417int lio_get_device_id(void *dev)
1418{
1419 struct octeon_device *octeon_dev = (struct octeon_device *)dev;
1420 u32 i;
1421
1422 for (i = 0; i < MAX_OCTEON_DEVICES; i++)
1423 if (octeon_device[i] == octeon_dev)
1424 return octeon_dev->octeon_id;
1425 return -1;
1426}
1427
1428void lio_enable_irq(struct octeon_droq *droq, struct octeon_instr_queue *iq)
1429{
1430 u64 instr_cnt;
1431 u32 pkts_pend;
1432 struct octeon_device *oct = NULL;
1433
1434
1435 if (droq) {
1436 pkts_pend = (u32)atomic_read(&droq->pkts_pending);
1437 writel(droq->pkt_count - pkts_pend, droq->pkts_sent_reg);
1438 droq->pkt_count = pkts_pend;
1439 oct = droq->oct_dev;
1440 }
1441 if (iq) {
1442 spin_lock_bh(&iq->lock);
1443 writel(iq->pkts_processed, iq->inst_cnt_reg);
1444 iq->pkt_in_done -= iq->pkts_processed;
1445 iq->pkts_processed = 0;
1446
1447 spin_unlock_bh(&iq->lock);
1448 oct = iq->oct_dev;
1449 }
1450
1451
1452
1453 if (oct && (OCTEON_CN23XX_PF(oct) || OCTEON_CN23XX_VF(oct))) {
1454 if (droq)
1455 writeq(CN23XX_INTR_RESEND, droq->pkts_sent_reg);
1456
1457 else if (iq) {
1458 instr_cnt = readq(iq->inst_cnt_reg);
1459 writeq(((instr_cnt & 0xFFFFFFFF00000000ULL) |
1460 CN23XX_INTR_RESEND),
1461 iq->inst_cnt_reg);
1462 }
1463 }
1464}
1465