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path: root/drivers/pci/hotplug/ibmphp_core.c
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Diffstat (limited to 'drivers/pci/hotplug/ibmphp_core.c')
-rw-r--r--drivers/pci/hotplug/ibmphp_core.c106
1 files changed, 28 insertions, 78 deletions
diff --git a/drivers/pci/hotplug/ibmphp_core.c b/drivers/pci/hotplug/ibmphp_core.c
index 7485ffda950c..d934dd4fa873 100644
--- a/drivers/pci/hotplug/ibmphp_core.c
+++ b/drivers/pci/hotplug/ibmphp_core.c
@@ -395,89 +395,40 @@ static int get_adapter_present(struct hotplug_slot *hotplug_slot, u8 * value)
395 return rc; 395 return rc;
396} 396}
397 397
398static int get_max_bus_speed(struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value) 398static int get_max_bus_speed(struct slot *slot)
399{ 399{
400 int rc = -ENODEV; 400 int rc;
401 struct slot *pslot;
402 u8 mode = 0; 401 u8 mode = 0;
402 enum pci_bus_speed speed;
403 struct pci_bus *bus = slot->hotplug_slot->pci_slot->bus;
403 404
404 debug("%s - Entry hotplug_slot[%p] pvalue[%p]\n", __func__, 405 debug("%s - Entry slot[%p]\n", __func__, slot);
405 hotplug_slot, value);
406 406
407 ibmphp_lock_operations(); 407 ibmphp_lock_operations();
408 408 mode = slot->supported_bus_mode;
409 if (hotplug_slot) { 409 speed = slot->supported_speed;
410 pslot = hotplug_slot->private;
411 if (pslot) {
412 rc = 0;
413 mode = pslot->supported_bus_mode;
414 *value = pslot->supported_speed;
415 switch (*value) {
416 case BUS_SPEED_33:
417 break;
418 case BUS_SPEED_66:
419 if (mode == BUS_MODE_PCIX)
420 *value += 0x01;
421 break;
422 case BUS_SPEED_100:
423 case BUS_SPEED_133:
424 *value = pslot->supported_speed + 0x01;
425 break;
426 default:
427 /* Note (will need to change): there would be soon 256, 512 also */
428 rc = -ENODEV;
429 }
430 }
431 }
432
433 ibmphp_unlock_operations(); 410 ibmphp_unlock_operations();
434 debug("%s - Exit rc[%d] value[%x]\n", __func__, rc, *value);
435 return rc;
436}
437 411
438static int get_cur_bus_speed(struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value) 412 switch (speed) {
439{ 413 case BUS_SPEED_33:
440 int rc = -ENODEV; 414 break;
441 struct slot *pslot; 415 case BUS_SPEED_66:
442 u8 mode = 0; 416 if (mode == BUS_MODE_PCIX)
443 417 speed += 0x01;
444 debug("%s - Entry hotplug_slot[%p] pvalue[%p]\n", __func__, 418 break;
445 hotplug_slot, value); 419 case BUS_SPEED_100:
446 420 case BUS_SPEED_133:
447 ibmphp_lock_operations(); 421 speed += 0x01;
448 422 break;
449 if (hotplug_slot) { 423 default:
450 pslot = hotplug_slot->private; 424 /* Note (will need to change): there would be soon 256, 512 also */
451 if (pslot) { 425 rc = -ENODEV;
452 rc = get_cur_bus_info(&pslot);
453 if (!rc) {
454 mode = pslot->bus_on->current_bus_mode;
455 *value = pslot->bus_on->current_speed;
456 switch (*value) {
457 case BUS_SPEED_33:
458 break;
459 case BUS_SPEED_66:
460 if (mode == BUS_MODE_PCIX)
461 *value += 0x01;
462 else if (mode == BUS_MODE_PCI)
463 ;
464 else
465 *value = PCI_SPEED_UNKNOWN;
466 break;
467 case BUS_SPEED_100:
468 case BUS_SPEED_133:
469 *value += 0x01;
470 break;
471 default:
472 /* Note of change: there would also be 256, 512 soon */
473 rc = -ENODEV;
474 }
475 }
476 }
477 } 426 }
478 427
479 ibmphp_unlock_operations(); 428 if (!rc)
480 debug("%s - Exit rc[%d] value[%x]\n", __func__, rc, *value); 429 bus->max_bus_speed = speed;
430
431 debug("%s - Exit rc[%d] speed[%x]\n", __func__, rc, speed);
481 return rc; 432 return rc;
482} 433}
483 434
@@ -572,6 +523,7 @@ static int __init init_ops(void)
572 if (slot_cur->bus_on->current_speed == 0xFF) 523 if (slot_cur->bus_on->current_speed == 0xFF)
573 if (get_cur_bus_info(&slot_cur)) 524 if (get_cur_bus_info(&slot_cur))
574 return -1; 525 return -1;
526 get_max_bus_speed(slot_cur);
575 527
576 if (slot_cur->ctrl->options == 0xFF) 528 if (slot_cur->ctrl->options == 0xFF)
577 if (get_hpc_options(slot_cur, &slot_cur->ctrl->options)) 529 if (get_hpc_options(slot_cur, &slot_cur->ctrl->options))
@@ -655,6 +607,7 @@ static int validate(struct slot *slot_cur, int opn)
655int ibmphp_update_slot_info(struct slot *slot_cur) 607int ibmphp_update_slot_info(struct slot *slot_cur)
656{ 608{
657 struct hotplug_slot_info *info; 609 struct hotplug_slot_info *info;
610 struct pci_bus *bus = slot_cur->hotplug_slot->pci_slot->bus;
658 int rc; 611 int rc;
659 u8 bus_speed; 612 u8 bus_speed;
660 u8 mode; 613 u8 mode;
@@ -700,8 +653,7 @@ int ibmphp_update_slot_info(struct slot *slot_cur)
700 bus_speed = PCI_SPEED_UNKNOWN; 653 bus_speed = PCI_SPEED_UNKNOWN;
701 } 654 }
702 655
703 info->cur_bus_speed = bus_speed; 656 bus->cur_bus_speed = bus_speed;
704 info->max_bus_speed = slot_cur->hotplug_slot->info->max_bus_speed;
705 // To do: bus_names 657 // To do: bus_names
706 658
707 rc = pci_hp_change_slot_info(slot_cur->hotplug_slot, info); 659 rc = pci_hp_change_slot_info(slot_cur->hotplug_slot, info);
@@ -1326,8 +1278,6 @@ struct hotplug_slot_ops ibmphp_hotplug_slot_ops = {
1326 .get_attention_status = get_attention_status, 1278 .get_attention_status = get_attention_status,
1327 .get_latch_status = get_latch_status, 1279 .get_latch_status = get_latch_status,
1328 .get_adapter_status = get_adapter_present, 1280 .get_adapter_status = get_adapter_present,
1329 .get_max_bus_speed = get_max_bus_speed,
1330 .get_cur_bus_speed = get_cur_bus_speed,
1331/* .get_max_adapter_speed = get_max_adapter_speed, 1281/* .get_max_adapter_speed = get_max_adapter_speed,
1332 .get_bus_name_status = get_bus_name, 1282 .get_bus_name_status = get_bus_name,
1333*/ 1283*/