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-rw-r--r--drivers/pci/hotplug/Makefile3
-rw-r--r--drivers/pci/hotplug/rpadlpar_core.c110
-rw-r--r--drivers/pci/hotplug/rpaphp.h16
-rw-r--r--drivers/pci/hotplug/rpaphp_core.c77
-rw-r--r--drivers/pci/hotplug/rpaphp_pci.c15
-rw-r--r--drivers/pci/hotplug/rpaphp_slot.c9
-rw-r--r--drivers/pci/hotplug/rpaphp_vio.c129
7 files changed, 88 insertions, 271 deletions
diff --git a/drivers/pci/hotplug/Makefile b/drivers/pci/hotplug/Makefile
index 246586a3d91a..3c71e3077ff1 100644
--- a/drivers/pci/hotplug/Makefile
+++ b/drivers/pci/hotplug/Makefile
@@ -41,8 +41,7 @@ acpiphp-objs := acpiphp_core.o \
41 41
42rpaphp-objs := rpaphp_core.o \ 42rpaphp-objs := rpaphp_core.o \
43 rpaphp_pci.o \ 43 rpaphp_pci.o \
44 rpaphp_slot.o \ 44 rpaphp_slot.o
45 rpaphp_vio.o
46 45
47rpadlpar_io-objs := rpadlpar_core.o \ 46rpadlpar_io-objs := rpadlpar_core.o \
48 rpadlpar_sysfs.o 47 rpadlpar_sysfs.o
diff --git a/drivers/pci/hotplug/rpadlpar_core.c b/drivers/pci/hotplug/rpadlpar_core.c
index 86b384e42717..d7f1319f167a 100644
--- a/drivers/pci/hotplug/rpadlpar_core.c
+++ b/drivers/pci/hotplug/rpadlpar_core.c
@@ -19,6 +19,7 @@
19#include <asm/pci-bridge.h> 19#include <asm/pci-bridge.h>
20#include <asm/semaphore.h> 20#include <asm/semaphore.h>
21#include <asm/rtas.h> 21#include <asm/rtas.h>
22#include <asm/vio.h>
22#include "../pci.h" 23#include "../pci.h"
23#include "rpaphp.h" 24#include "rpaphp.h"
24#include "rpadlpar.h" 25#include "rpadlpar.h"
@@ -29,23 +30,23 @@ static DECLARE_MUTEX(rpadlpar_sem);
29#define NODE_TYPE_SLOT 2 30#define NODE_TYPE_SLOT 2
30#define NODE_TYPE_PHB 3 31#define NODE_TYPE_PHB 3
31 32
32static struct device_node *find_php_slot_vio_node(char *drc_name) 33static struct device_node *find_vio_slot_node(char *drc_name)
33{ 34{
34 struct device_node *child;
35 struct device_node *parent = of_find_node_by_name(NULL, "vdevice"); 35 struct device_node *parent = of_find_node_by_name(NULL, "vdevice");
36 char *loc_code; 36 struct device_node *dn = NULL;
37 char *name;
38 int rc;
37 39
38 if (!parent) 40 if (!parent)
39 return NULL; 41 return NULL;
40 42
41 for (child = of_get_next_child(parent, NULL); 43 while ((dn = of_get_next_child(parent, dn))) {
42 child; child = of_get_next_child(parent, child)) { 44 rc = rpaphp_get_drc_props(dn, NULL, &name, NULL, NULL);
43 loc_code = get_property(child, "ibm,loc-code", NULL); 45 if ((rc == 0) && (!strcmp(drc_name, name)))
44 if (loc_code && !strncmp(loc_code, drc_name, strlen(drc_name))) 46 break;
45 return child;
46 } 47 }
47 48
48 return NULL; 49 return dn;
49} 50}
50 51
51/* Find dlpar-capable pci node that contains the specified name and type */ 52/* Find dlpar-capable pci node that contains the specified name and type */
@@ -67,7 +68,7 @@ static struct device_node *find_php_slot_pci_node(char *drc_name,
67 return np; 68 return np;
68} 69}
69 70
70static struct device_node *find_newly_added_node(char *drc_name, int *node_type) 71static struct device_node *find_dlpar_node(char *drc_name, int *node_type)
71{ 72{
72 struct device_node *dn; 73 struct device_node *dn;
73 74
@@ -83,7 +84,7 @@ static struct device_node *find_newly_added_node(char *drc_name, int *node_type)
83 return dn; 84 return dn;
84 } 85 }
85 86
86 dn = find_php_slot_vio_node(drc_name); 87 dn = find_vio_slot_node(drc_name);
87 if (dn) { 88 if (dn) {
88 *node_type = NODE_TYPE_VIO; 89 *node_type = NODE_TYPE_VIO;
89 return dn; 90 return dn;
@@ -231,6 +232,12 @@ static inline int dlpar_add_pci_slot(char *drc_name, struct device_node *dn)
231 return -EIO; 232 return -EIO;
232 } 233 }
233 234
235 /* Add hotplug slot */
236 if (rpaphp_add_slot(dn)) {
237 printk(KERN_ERR "%s: unable to add hotplug slot %s\n",
238 __FUNCTION__, drc_name);
239 return -EIO;
240 }
234 return 0; 241 return 0;
235} 242}
236 243
@@ -288,7 +295,7 @@ static int dlpar_remove_phb(struct slot *slot)
288 return 0; 295 return 0;
289} 296}
290 297
291static int dlpar_add_phb(struct device_node *dn) 298static int dlpar_add_phb(char *drc_name, struct device_node *dn)
292{ 299{
293 struct pci_controller *phb; 300 struct pci_controller *phb;
294 301
@@ -296,6 +303,11 @@ static int dlpar_add_phb(struct device_node *dn)
296 if (!phb) 303 if (!phb)
297 return -EINVAL; 304 return -EINVAL;
298 305
306 if (rpaphp_add_slot(dn)) {
307 printk(KERN_ERR "%s: unable to add hotplug slot %s\n",
308 __FUNCTION__, drc_name);
309 return -EIO;
310 }
299 return 0; 311 return 0;
300} 312}
301 313
@@ -316,7 +328,7 @@ int dlpar_add_slot(char *drc_name)
316{ 328{
317 struct device_node *dn = NULL; 329 struct device_node *dn = NULL;
318 int node_type; 330 int node_type;
319 int rc = 0; 331 int rc;
320 332
321 if (down_interruptible(&rpadlpar_sem)) 333 if (down_interruptible(&rpadlpar_sem))
322 return -ERESTARTSYS; 334 return -ERESTARTSYS;
@@ -327,32 +339,39 @@ int dlpar_add_slot(char *drc_name)
327 goto exit; 339 goto exit;
328 } 340 }
329 341
330 dn = find_newly_added_node(drc_name, &node_type); 342 /* Find newly added node */
343 dn = find_dlpar_node(drc_name, &node_type);
331 if (!dn) { 344 if (!dn) {
332 rc = -ENODEV; 345 rc = -ENODEV;
333 goto exit; 346 goto exit;
334 } 347 }
335 348
349 rc = -EIO;
336 switch (node_type) { 350 switch (node_type) {
337 case NODE_TYPE_VIO: 351 case NODE_TYPE_VIO:
338 /* Just add hotplug slot */ 352 if (!vio_register_device_node(dn)) {
353 printk(KERN_ERR
354 "%s: failed to register vio node %s\n",
355 __FUNCTION__, drc_name);
356 goto exit;
357 }
339 break; 358 break;
340 case NODE_TYPE_SLOT: 359 case NODE_TYPE_SLOT:
341 rc = dlpar_add_pci_slot(drc_name, dn); 360 rc = dlpar_add_pci_slot(drc_name, dn);
361 if (rc)
362 goto exit;
342 break; 363 break;
343 case NODE_TYPE_PHB: 364 case NODE_TYPE_PHB:
344 rc = dlpar_add_phb(dn); 365 rc = dlpar_add_phb(drc_name, dn);
366 if (rc)
367 goto exit;
345 break; 368 break;
346 default: 369 default:
347 printk("%s: unexpected node type\n", __FUNCTION__); 370 printk("%s: unexpected node type\n", __FUNCTION__);
348 return -EIO; 371 goto exit;
349 } 372 }
350 373
351 if (!rc && rpaphp_add_slot(dn)) { 374 rc = 0;
352 printk(KERN_ERR "%s: unable to add hotplug slot %s\n",
353 __FUNCTION__, drc_name);
354 rc = -EIO;
355 }
356exit: 375exit:
357 up(&rpadlpar_sem); 376 up(&rpadlpar_sem);
358 return rc; 377 return rc;
@@ -368,15 +387,18 @@ exit:
368 * 0 Success 387 * 0 Success
369 * -EIO Internal Error 388 * -EIO Internal Error
370 */ 389 */
371int dlpar_remove_vio_slot(struct slot *slot, char *drc_name) 390static int dlpar_remove_vio_slot(struct device_node *dn, char *drc_name)
372{ 391{
373 /* Remove hotplug slot */ 392 struct vio_dev *vio_dev;
374 393
375 if (rpaphp_remove_slot(slot)) { 394 vio_dev = vio_find_node(dn);
376 printk(KERN_ERR "%s: unable to remove hotplug slot %s\n", 395 if (!vio_dev) {
377 __FUNCTION__, drc_name); 396 printk(KERN_ERR "%s: %s does not correspond to a vio dev\n",
397 __FUNCTION__, drc_name);
378 return -EIO; 398 return -EIO;
379 } 399 }
400
401 vio_unregister_device(vio_dev);
380 return 0; 402 return 0;
381} 403}
382 404
@@ -434,36 +456,34 @@ int dlpar_remove_pci_slot(struct slot *slot, char *drc_name)
434 */ 456 */
435int dlpar_remove_slot(char *drc_name) 457int dlpar_remove_slot(char *drc_name)
436{ 458{
459 struct device_node *dn;
437 struct slot *slot; 460 struct slot *slot;
461 int node_type;
438 int rc = 0; 462 int rc = 0;
439 463
440 if (down_interruptible(&rpadlpar_sem)) 464 if (down_interruptible(&rpadlpar_sem))
441 return -ERESTARTSYS; 465 return -ERESTARTSYS;
442 466
443 if (!find_php_slot_vio_node(drc_name) && 467 dn = find_dlpar_node(drc_name, &node_type);
444 !find_php_slot_pci_node(drc_name, "SLOT") && 468 if (!dn) {
445 !find_php_slot_pci_node(drc_name, "PHB")) {
446 rc = -ENODEV; 469 rc = -ENODEV;
447 goto exit; 470 goto exit;
448 } 471 }
449 472
450 slot = find_slot(drc_name); 473 if (node_type == NODE_TYPE_VIO) {
451 if (!slot) { 474 rc = dlpar_remove_vio_slot(dn, drc_name);
452 rc = -EINVAL;
453 goto exit;
454 }
455
456 if (slot->type == PHB) {
457 rc = dlpar_remove_phb(slot);
458 } else { 475 } else {
459 switch (slot->dev_type) { 476 slot = find_slot(drc_name);
460 case PCI_DEV: 477 if (!slot) {
461 rc = dlpar_remove_pci_slot(slot, drc_name); 478 rc = -EINVAL;
462 break; 479 goto exit;
480 }
463 481
464 case VIO_DEV: 482 if (node_type == NODE_TYPE_PHB)
465 rc = dlpar_remove_vio_slot(slot, drc_name); 483 rc = dlpar_remove_phb(slot);
466 break; 484 else {
485 /* NODE_TYPE_SLOT */
486 rc = dlpar_remove_pci_slot(slot, drc_name);
467 } 487 }
468 } 488 }
469exit: 489exit:
diff --git a/drivers/pci/hotplug/rpaphp.h b/drivers/pci/hotplug/rpaphp.h
index 25bea00b4f14..2d9f420dfa4f 100644
--- a/drivers/pci/hotplug/rpaphp.h
+++ b/drivers/pci/hotplug/rpaphp.h
@@ -61,10 +61,6 @@ extern int debug;
61#define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg) 61#define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg)
62#define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg) 62#define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg)
63 63
64/* slot types */
65#define VIO_DEV 1
66#define PCI_DEV 2
67
68/* slot states */ 64/* slot states */
69 65
70#define NOT_VALID 3 66#define NOT_VALID 3
@@ -84,14 +80,10 @@ struct slot {
84 char *name; 80 char *name;
85 char *location; 81 char *location;
86 u8 removable; 82 u8 removable;
87 u8 dev_type; /* VIO or PCI */
88 struct device_node *dn; /* slot's device_node in OFDT */ 83 struct device_node *dn; /* slot's device_node in OFDT */
89 /* dn has phb info */ 84 /* dn has phb info */
90 struct pci_dev *bridge; /* slot's pci_dev in pci_devices */ 85 struct pci_dev *bridge; /* slot's pci_dev in pci_devices */
91 union { 86 struct list_head *pci_devs; /* pci_devs in PCI slot */
92 struct list_head *pci_devs; /* pci_devs in PCI slot */
93 struct vio_dev *vio_dev; /* vio_dev in VIO slot */
94 } dev;
95 struct hotplug_slot *hotplug_slot; 87 struct hotplug_slot *hotplug_slot;
96}; 88};
97 89
@@ -115,12 +107,6 @@ extern int rpaphp_remove_slot(struct slot *slot);
115extern int rpaphp_get_drc_props(struct device_node *dn, int *drc_index, 107extern int rpaphp_get_drc_props(struct device_node *dn, int *drc_index,
116 char **drc_name, char **drc_type, int *drc_power_domain); 108 char **drc_name, char **drc_type, int *drc_power_domain);
117 109
118/* rpaphp_vio.c */
119extern int rpaphp_get_vio_adapter_status(struct slot *slot, int is_init, u8 * value);
120extern int rpaphp_unconfig_vio_adapter(struct slot *slot);
121extern int register_vio_slot(struct device_node *dn);
122extern int rpaphp_enable_vio_slot(struct slot *slot);
123
124/* rpaphp_slot.c */ 110/* rpaphp_slot.c */
125extern void dealloc_slot_struct(struct slot *slot); 111extern void dealloc_slot_struct(struct slot *slot);
126extern struct slot *alloc_slot_struct(struct device_node *dn, int drc_index, char *drc_name, int power_domain); 112extern struct slot *alloc_slot_struct(struct device_node *dn, int drc_index, char *drc_name, int power_domain);
diff --git a/drivers/pci/hotplug/rpaphp_core.c b/drivers/pci/hotplug/rpaphp_core.c
index 29117a3a3287..22ec0993cf89 100644
--- a/drivers/pci/hotplug/rpaphp_core.c
+++ b/drivers/pci/hotplug/rpaphp_core.c
@@ -152,17 +152,7 @@ static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 * value)
152 int retval = 0; 152 int retval = 0;
153 153
154 down(&rpaphp_sem); 154 down(&rpaphp_sem);
155 /* have to go through this */ 155 retval = rpaphp_get_pci_adapter_status(slot, 0, value);
156 switch (slot->dev_type) {
157 case PCI_DEV:
158 retval = rpaphp_get_pci_adapter_status(slot, 0, value);
159 break;
160 case VIO_DEV:
161 retval = rpaphp_get_vio_adapter_status(slot, 0, value);
162 break;
163 default:
164 retval = -EINVAL;
165 }
166 up(&rpaphp_sem); 156 up(&rpaphp_sem);
167 return retval; 157 return retval;
168} 158}
@@ -362,12 +352,6 @@ int rpaphp_add_slot(struct device_node *dn)
362 352
363 dbg("Entry %s: dn->full_name=%s\n", __FUNCTION__, dn->full_name); 353 dbg("Entry %s: dn->full_name=%s\n", __FUNCTION__, dn->full_name);
364 354
365 if (dn->parent && is_vdevice_root(dn->parent)) {
366 /* register a VIO device */
367 retval = register_vio_slot(dn);
368 goto exit;
369 }
370
371 /* register PCI devices */ 355 /* register PCI devices */
372 if (dn->name != 0 && strcmp(dn->name, "pci") == 0) { 356 if (dn->name != 0 && strcmp(dn->name, "pci") == 0) {
373 if (is_php_dn(dn, &indexes, &names, &types, &power_domains)) 357 if (is_php_dn(dn, &indexes, &names, &types, &power_domains))
@@ -412,31 +396,6 @@ exit:
412 return retval; 396 return retval;
413} 397}
414 398
415/*
416 * init_slots - initialize 'struct slot' structures for each slot
417 *
418 */
419static void init_slots(void)
420{
421 struct device_node *dn;
422
423 for (dn = find_all_nodes(); dn; dn = dn->next)
424 rpaphp_add_slot(dn);
425}
426
427static int __init init_rpa(void)
428{
429
430 init_MUTEX(&rpaphp_sem);
431
432 /* initialize internal data structure etc. */
433 init_slots();
434 if (!num_slots)
435 return -ENODEV;
436
437 return 0;
438}
439
440static void __exit cleanup_slots(void) 399static void __exit cleanup_slots(void)
441{ 400{
442 struct list_head *tmp, *n; 401 struct list_head *tmp, *n;
@@ -458,10 +417,18 @@ static void __exit cleanup_slots(void)
458 417
459static int __init rpaphp_init(void) 418static int __init rpaphp_init(void)
460{ 419{
420 struct device_node *dn = NULL;
421
461 info(DRIVER_DESC " version: " DRIVER_VERSION "\n"); 422 info(DRIVER_DESC " version: " DRIVER_VERSION "\n");
423 init_MUTEX(&rpaphp_sem);
424
425 while ((dn = of_find_node_by_type(dn, "pci")))
426 rpaphp_add_slot(dn);
427
428 if (!num_slots)
429 return -ENODEV;
462 430
463 /* read all the PRA info from the system */ 431 return 0;
464 return init_rpa();
465} 432}
466 433
467static void __exit rpaphp_exit(void) 434static void __exit rpaphp_exit(void)
@@ -481,16 +448,7 @@ static int enable_slot(struct hotplug_slot *hotplug_slot)
481 448
482 dbg("ENABLING SLOT %s\n", slot->name); 449 dbg("ENABLING SLOT %s\n", slot->name);
483 down(&rpaphp_sem); 450 down(&rpaphp_sem);
484 switch (slot->dev_type) { 451 retval = rpaphp_enable_pci_slot(slot);
485 case PCI_DEV:
486 retval = rpaphp_enable_pci_slot(slot);
487 break;
488 case VIO_DEV:
489 retval = rpaphp_enable_vio_slot(slot);
490 break;
491 default:
492 retval = -EINVAL;
493 }
494 up(&rpaphp_sem); 452 up(&rpaphp_sem);
495exit: 453exit:
496 dbg("%s - Exit: rc[%d]\n", __FUNCTION__, retval); 454 dbg("%s - Exit: rc[%d]\n", __FUNCTION__, retval);
@@ -511,16 +469,7 @@ static int disable_slot(struct hotplug_slot *hotplug_slot)
511 469
512 dbg("DISABLING SLOT %s\n", slot->name); 470 dbg("DISABLING SLOT %s\n", slot->name);
513 down(&rpaphp_sem); 471 down(&rpaphp_sem);
514 switch (slot->dev_type) { 472 retval = rpaphp_unconfig_pci_adapter(slot);
515 case PCI_DEV:
516 retval = rpaphp_unconfig_pci_adapter(slot);
517 break;
518 case VIO_DEV:
519 retval = rpaphp_unconfig_vio_adapter(slot);
520 break;
521 default:
522 retval = -ENODEV;
523 }
524 up(&rpaphp_sem); 473 up(&rpaphp_sem);
525exit: 474exit:
526 dbg("%s - Exit: rc[%d]\n", __FUNCTION__, retval); 475 dbg("%s - Exit: rc[%d]\n", __FUNCTION__, retval);
diff --git a/drivers/pci/hotplug/rpaphp_pci.c b/drivers/pci/hotplug/rpaphp_pci.c
index ab67d3d1a59c..30d10fcc24b2 100644
--- a/drivers/pci/hotplug/rpaphp_pci.c
+++ b/drivers/pci/hotplug/rpaphp_pci.c
@@ -265,11 +265,9 @@ static void print_slot_pci_funcs(struct slot *slot)
265{ 265{
266 struct pci_dev *dev; 266 struct pci_dev *dev;
267 267
268 if (slot->dev_type == PCI_DEV) { 268 dbg("%s: pci_devs of slot[%s]\n", __FUNCTION__, slot->name);
269 dbg("%s: pci_devs of slot[%s]\n", __FUNCTION__, slot->name); 269 list_for_each_entry (dev, slot->pci_devs, bus_list)
270 list_for_each_entry (dev, slot->dev.pci_devs, bus_list) 270 dbg("\t%s\n", pci_name(dev));
271 dbg("\t%s\n", pci_name(dev));
272 }
273 return; 271 return;
274} 272}
275 273
@@ -328,7 +326,7 @@ int rpaphp_unconfig_pci_adapter(struct slot *slot)
328 struct pci_dev *dev; 326 struct pci_dev *dev;
329 int retval = 0; 327 int retval = 0;
330 328
331 list_for_each_entry(dev, slot->dev.pci_devs, bus_list) 329 list_for_each_entry(dev, slot->pci_devs, bus_list)
332 rpaphp_eeh_remove_bus_device(dev); 330 rpaphp_eeh_remove_bus_device(dev);
333 331
334 pci_remove_behind_bridge(slot->bridge); 332 pci_remove_behind_bridge(slot->bridge);
@@ -401,7 +399,7 @@ static int setup_pci_slot(struct slot *slot)
401 bus = slot->bridge->subordinate; 399 bus = slot->bridge->subordinate;
402 if (!bus) 400 if (!bus)
403 goto exit_rc; 401 goto exit_rc;
404 slot->dev.pci_devs = &bus->devices; 402 slot->pci_devs = &bus->devices;
405 403
406 dbg("%s set slot->name to %s\n", __FUNCTION__, 404 dbg("%s set slot->name to %s\n", __FUNCTION__,
407 pci_name(slot->bridge)); 405 pci_name(slot->bridge));
@@ -434,7 +432,7 @@ static int setup_pci_slot(struct slot *slot)
434 goto exit_rc; 432 goto exit_rc;
435 } 433 }
436 print_slot_pci_funcs(slot); 434 print_slot_pci_funcs(slot);
437 if (!list_empty(slot->dev.pci_devs)) { 435 if (!list_empty(slot->pci_devs)) {
438 slot->state = CONFIGURED; 436 slot->state = CONFIGURED;
439 } else { 437 } else {
440 /* DLPAR add as opposed to 438 /* DLPAR add as opposed to
@@ -452,7 +450,6 @@ int register_pci_slot(struct slot *slot)
452{ 450{
453 int rc = -EINVAL; 451 int rc = -EINVAL;
454 452
455 slot->dev_type = PCI_DEV;
456 if ((slot->type == EMBEDDED) || (slot->type == PHB)) 453 if ((slot->type == EMBEDDED) || (slot->type == PHB))
457 slot->removable = 0; 454 slot->removable = 0;
458 else 455 else
diff --git a/drivers/pci/hotplug/rpaphp_slot.c b/drivers/pci/hotplug/rpaphp_slot.c
index ff2cbf0652d8..80402027c015 100644
--- a/drivers/pci/hotplug/rpaphp_slot.c
+++ b/drivers/pci/hotplug/rpaphp_slot.c
@@ -220,13 +220,8 @@ int register_slot(struct slot *slot)
220 __FUNCTION__, slot->name); 220 __FUNCTION__, slot->name);
221 221
222 list_add(&slot->rpaphp_slot_list, &rpaphp_slot_head); 222 list_add(&slot->rpaphp_slot_list, &rpaphp_slot_head);
223 223 info("Slot [%s](PCI location=%s) registered\n", slot->name,
224 if (slot->dev_type == VIO_DEV) 224 slot->location);
225 info("Slot [%s](VIO location=%s) registered\n",
226 slot->name, slot->location);
227 else
228 info("Slot [%s](PCI location=%s) registered\n",
229 slot->name, slot->location);
230 num_slots++; 225 num_slots++;
231 return 0; 226 return 0;
232} 227}
diff --git a/drivers/pci/hotplug/rpaphp_vio.c b/drivers/pci/hotplug/rpaphp_vio.c
deleted file mode 100644
index 74df6a305e64..000000000000
--- a/drivers/pci/hotplug/rpaphp_vio.c
+++ /dev/null
@@ -1,129 +0,0 @@
1/*
2 * RPA Hot Plug Virtual I/O device functions
3 * Copyright (C) 2004 Linda Xie <lxie@us.ibm.com>
4 *
5 * All rights reserved.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or (at
10 * your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
15 * NON INFRINGEMENT. See the GNU General Public License for more
16 * details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 *
22 * Send feedback to <lxie@us.ibm.com>
23 *
24 */
25#include <asm/vio.h>
26#include "rpaphp.h"
27
28/*
29 * get_vio_adapter_status - get the status of a slot
30 *
31 * status:
32 *
33 * 1-- adapter is configured
34 * 2-- adapter is not configured
35 * 3-- not valid
36 */
37inline int rpaphp_get_vio_adapter_status(struct slot *slot, int is_init, u8 *value)
38{
39 *value = slot->state;
40 return 0;
41}
42
43int rpaphp_unconfig_vio_adapter(struct slot *slot)
44{
45 int retval = 0;
46
47 dbg("Entry %s: slot[%s]\n", __FUNCTION__, slot->name);
48 if (!slot->dev.vio_dev) {
49 info("%s: no VIOA in slot[%s]\n", __FUNCTION__, slot->name);
50 retval = -EINVAL;
51 goto exit;
52 }
53 /* remove the device from the vio core */
54 vio_unregister_device(slot->dev.vio_dev);
55 slot->state = NOT_CONFIGURED;
56 info("%s: adapter in slot[%s] unconfigured.\n", __FUNCTION__, slot->name);
57exit:
58 dbg("Exit %s, rc=0x%x\n", __FUNCTION__, retval);
59 return retval;
60}
61
62static int setup_vio_hotplug_slot_info(struct slot *slot)
63{
64 slot->hotplug_slot->info->power_status = 1;
65 rpaphp_get_vio_adapter_status(slot, 1,
66 &slot->hotplug_slot->info->adapter_status);
67 return 0;
68}
69
70int register_vio_slot(struct device_node *dn)
71{
72 u32 *index;
73 char *name;
74 int rc = -EINVAL;
75 struct slot *slot = NULL;
76
77 rc = rpaphp_get_drc_props(dn, NULL, &name, NULL, NULL);
78 if (rc < 0)
79 goto exit_rc;
80 index = (u32 *) get_property(dn, "ibm,my-drc-index", NULL);
81 if (!index)
82 goto exit_rc;
83 if (!(slot = alloc_slot_struct(dn, *index, name, 0))) {
84 rc = -ENOMEM;
85 goto exit_rc;
86 }
87 slot->dev_type = VIO_DEV;
88 slot->dev.vio_dev = vio_find_node(dn);
89 if (slot->dev.vio_dev) {
90 /*
91 * rpaphp is the only owner of vio devices and
92 * does not need extra reference taken by
93 * vio_find_node
94 */
95 put_device(&slot->dev.vio_dev->dev);
96 } else
97 slot->dev.vio_dev = vio_register_device_node(dn);
98 if (slot->dev.vio_dev)
99 slot->state = CONFIGURED;
100 else
101 slot->state = NOT_CONFIGURED;
102 if (setup_vio_hotplug_slot_info(slot))
103 goto exit_rc;
104 strcpy(slot->name, slot->dev.vio_dev->dev.bus_id);
105 info("%s: registered VIO device[name=%s vio_dev=%p]\n",
106 __FUNCTION__, slot->name, slot->dev.vio_dev);
107 rc = register_slot(slot);
108exit_rc:
109 if (rc && slot)
110 dealloc_slot_struct(slot);
111 return (rc);
112}
113
114int rpaphp_enable_vio_slot(struct slot *slot)
115{
116 int retval = 0;
117
118 if ((slot->dev.vio_dev = vio_register_device_node(slot->dn))) {
119 info("%s: VIO adapter %s in slot[%s] has been configured\n",
120 __FUNCTION__, slot->dn->name, slot->name);
121 slot->state = CONFIGURED;
122 } else {
123 info("%s: no vio_dev struct for adapter in slot[%s]\n",
124 __FUNCTION__, slot->name);
125 slot->state = NOT_CONFIGURED;
126 }
127
128 return retval;
129}
generated by cgit v1.2.2 (git 2.25.0) at 2025-10-24 17:35:26 -0400