summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-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 \
rpaphp-objs := rpaphp_core.o \
rpaphp_pci.o \
- rpaphp_slot.o \
- rpaphp_vio.o
+ rpaphp_slot.o
rpadlpar_io-objs := rpadlpar_core.o \
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 @@
#include <asm/pci-bridge.h>
#include <asm/semaphore.h>
#include <asm/rtas.h>
+#include <asm/vio.h>
#include "../pci.h"
#include "rpaphp.h"
#include "rpadlpar.h"
@@ -29,23 +30,23 @@ static DECLARE_MUTEX(rpadlpar_sem);
#define NODE_TYPE_SLOT 2
#define NODE_TYPE_PHB 3
-static struct device_node *find_php_slot_vio_node(char *drc_name)
+static struct device_node *find_vio_slot_node(char *drc_name)
{
- struct device_node *child;
struct device_node *parent = of_find_node_by_name(NULL, "vdevice");
- char *loc_code;
+ struct device_node *dn = NULL;
+ char *name;
+ int rc;
if (!parent)
return NULL;
- for (child = of_get_next_child(parent, NULL);
- child; child = of_get_next_child(parent, child)) {
- loc_code = get_property(child, "ibm,loc-code", NULL);
- if (loc_code && !strncmp(loc_code, drc_name, strlen(drc_name)))
- return child;
+ while ((dn = of_get_next_child(parent, dn))) {
+ rc = rpaphp_get_drc_props(dn, NULL, &name, NULL, NULL);
+ if ((rc == 0) && (!strcmp(drc_name, name)))
+ break;
}
- return NULL;
+ return dn;
}
/* 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,
return np;
}
-static struct device_node *find_newly_added_node(char *drc_name, int *node_type)
+static struct device_node *find_dlpar_node(char *drc_name, int *node_type)
{
struct device_node *dn;
@@ -83,7 +84,7 @@ static struct device_node *find_newly_added_node(char *drc_name, int *node_type)
return dn;
}
- dn = find_php_slot_vio_node(drc_name);
+ dn = find_vio_slot_node(drc_name);
if (dn) {
*node_type = NODE_TYPE_VIO;
return dn;
@@ -231,6 +232,12 @@ static inline int dlpar_add_pci_slot(char *drc_name, struct device_node *dn)
return -EIO;
}
+ /* Add hotplug slot */
+ if (rpaphp_add_slot(dn)) {
+ printk(KERN_ERR "%s: unable to add hotplug slot %s\n",
+ __FUNCTION__, drc_name);
+ return -EIO;
+ }
return 0;
}
@@ -288,7 +295,7 @@ static int dlpar_remove_phb(struct slot *slot)
return 0;
}
-static int dlpar_add_phb(struct device_node *dn)
+static int dlpar_add_phb(char *drc_name, struct device_node *dn)
{
struct pci_controller *phb;
@@ -296,6 +303,11 @@ static int dlpar_add_phb(struct device_node *dn)
if (!phb)
return -EINVAL;
+ if (rpaphp_add_slot(dn)) {
+ printk(KERN_ERR "%s: unable to add hotplug slot %s\n",
+ __FUNCTION__, drc_name);
+ return -EIO;
+ }
return 0;
}
@@ -316,7 +328,7 @@ int dlpar_add_slot(char *drc_name)
{
struct device_node *dn = NULL;
int node_type;
- int rc = 0;
+ int rc;
if (down_interruptible(&rpadlpar_sem))
return -ERESTARTSYS;
@@ -327,32 +339,39 @@ int dlpar_add_slot(char *drc_name)
goto exit;
}
- dn = find_newly_added_node(drc_name, &node_type);
+ /* Find newly added node */
+ dn = find_dlpar_node(drc_name, &node_type);
if (!dn) {
rc = -ENODEV;
goto exit;
}
+ rc = -EIO;
switch (node_type) {
case NODE_TYPE_VIO:
- /* Just add hotplug slot */
+ if (!vio_register_device_node(dn)) {
+ printk(KERN_ERR
+ "%s: failed to register vio node %s\n",
+ __FUNCTION__, drc_name);
+ goto exit;
+ }
break;
case NODE_TYPE_SLOT:
rc = dlpar_add_pci_slot(drc_name, dn);
+ if (rc)
+ goto exit;
break;
case NODE_TYPE_PHB:
- rc = dlpar_add_phb(dn);
+ rc = dlpar_add_phb(drc_name, dn);
+ if (rc)
+ goto exit;
break;
default:
printk("%s: unexpected node type\n", __FUNCTION__);
- return -EIO;
+ goto exit;
}
- if (!rc && rpaphp_add_slot(dn)) {
- printk(KERN_ERR "%s: unable to add hotplug slot %s\n",
- __FUNCTION__, drc_name);
- rc = -EIO;
- }
+ rc = 0;
exit:
up(&rpadlpar_sem);
return rc;
@@ -368,15 +387,18 @@ exit:
* 0 Success
* -EIO Internal Error
*/
-int dlpar_remove_vio_slot(struct slot *slot, char *drc_name)
+static int dlpar_remove_vio_slot(struct device_node *dn, char *drc_name)
{
- /* Remove hotplug slot */
+ struct vio_dev *vio_dev;
- if (rpaphp_remove_slot(slot)) {
- printk(KERN_ERR "%s: unable to remove hotplug slot %s\n",
- __FUNCTION__, drc_name);
+ vio_dev = vio_find_node(dn);
+ if (!vio_dev) {
+ printk(KERN_ERR "%s: %s does not correspond to a vio dev\n",
+ __FUNCTION__, drc_name);
return -EIO;
}
+
+ vio_unregister_device(vio_dev);
return 0;
}
@@ -434,36 +456,34 @@ int dlpar_remove_pci_slot(struct slot *slot, char *drc_name)
*/
int dlpar_remove_slot(char *drc_name)
{
+ struct device_node *dn;
struct slot *slot;
+ int node_type;
int rc = 0;
if (down_interruptible(&rpadlpar_sem))
return -ERESTARTSYS;
- if (!find_php_slot_vio_node(drc_name) &&
- !find_php_slot_pci_node(drc_name, "SLOT") &&
- !find_php_slot_pci_node(drc_name, "PHB")) {
+ dn = find_dlpar_node(drc_name, &node_type);
+ if (!dn) {
rc = -ENODEV;
goto exit;
}
- slot = find_slot(drc_name);
- if (!slot) {
- rc = -EINVAL;
- goto exit;
- }
-
- if (slot->type == PHB) {
- rc = dlpar_remove_phb(slot);
+ if (node_type == NODE_TYPE_VIO) {
+ rc = dlpar_remove_vio_slot(dn, drc_name);
} else {
- switch (slot->dev_type) {
- case PCI_DEV:
- rc = dlpar_remove_pci_slot(slot, drc_name);
- break;
+ slot = find_slot(drc_name);
+ if (!slot) {
+ rc = -EINVAL;
+ goto exit;
+ }
- case VIO_DEV:
- rc = dlpar_remove_vio_slot(slot, drc_name);
- break;
+ if (node_type == NODE_TYPE_PHB)
+ rc = dlpar_remove_phb(slot);
+ else {
+ /* NODE_TYPE_SLOT */
+ rc = dlpar_remove_pci_slot(slot, drc_name);
}
}
exit:
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;
#define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg)
#define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg)
-/* slot types */
-#define VIO_DEV 1
-#define PCI_DEV 2
-
/* slot states */
#define NOT_VALID 3
@@ -84,14 +80,10 @@ struct slot {
char *name;
char *location;
u8 removable;
- u8 dev_type; /* VIO or PCI */
struct device_node *dn; /* slot's device_node in OFDT */
/* dn has phb info */
struct pci_dev *bridge; /* slot's pci_dev in pci_devices */
- union {
- struct list_head *pci_devs; /* pci_devs in PCI slot */
- struct vio_dev *vio_dev; /* vio_dev in VIO slot */
- } dev;
+ struct list_head *pci_devs; /* pci_devs in PCI slot */
struct hotplug_slot *hotplug_slot;
};
@@ -115,12 +107,6 @@ extern int rpaphp_remove_slot(struct slot *slot);
extern int rpaphp_get_drc_props(struct device_node *dn, int *drc_index,
char **drc_name, char **drc_type, int *drc_power_domain);
-/* rpaphp_vio.c */
-extern int rpaphp_get_vio_adapter_status(struct slot *slot, int is_init, u8 * value);
-extern int rpaphp_unconfig_vio_adapter(struct slot *slot);
-extern int register_vio_slot(struct device_node *dn);
-extern int rpaphp_enable_vio_slot(struct slot *slot);
-
/* rpaphp_slot.c */
extern void dealloc_slot_struct(struct slot *slot);
extern 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)
int retval = 0;
down(&rpaphp_sem);
- /* have to go through this */
- switch (slot->dev_type) {
- case PCI_DEV:
- retval = rpaphp_get_pci_adapter_status(slot, 0, value);
- break;
- case VIO_DEV:
- retval = rpaphp_get_vio_adapter_status(slot, 0, value);
- break;
- default:
- retval = -EINVAL;
- }
+ retval = rpaphp_get_pci_adapter_status(slot, 0, value);
up(&rpaphp_sem);
return retval;
}
@@ -362,12 +352,6 @@ int rpaphp_add_slot(struct device_node *dn)
dbg("Entry %s: dn->full_name=%s\n", __FUNCTION__, dn->full_name);
- if (dn->parent && is_vdevice_root(dn->parent)) {
- /* register a VIO device */
- retval = register_vio_slot(dn);
- goto exit;
- }
-
/* register PCI devices */
if (dn->name != 0 && strcmp(dn->name, "pci") == 0) {
if (is_php_dn(dn, &indexes, &names, &types, &power_domains))
@@ -412,31 +396,6 @@ exit:
return retval;
}
-/*
- * init_slots - initialize 'struct slot' structures for each slot
- *
- */
-static void init_slots(void)
-{
- struct device_node *dn;
-
- for (dn = find_all_nodes(); dn; dn = dn->next)
- rpaphp_add_slot(dn);
-}
-
-static int __init init_rpa(void)
-{
-
- init_MUTEX(&rpaphp_sem);
-
- /* initialize internal data structure etc. */
- init_slots();
- if (!num_slots)
- return -ENODEV;
-
- return 0;
-}
-
static void __exit cleanup_slots(void)
{
struct list_head *tmp, *n;
@@ -458,10 +417,18 @@ static void __exit cleanup_slots(void)
static int __init rpaphp_init(void)
{
+ struct device_node *dn = NULL;
+
info(DRIVER_DESC " version: " DRIVER_VERSION "\n");
+ init_MUTEX(&rpaphp_sem);
+
+ while ((dn = of_find_node_by_type(dn, "pci")))
+ rpaphp_add_slot(dn);
+
+ if (!num_slots)
+ return -ENODEV;
- /* read all the PRA info from the system */
- return init_rpa();
+ return 0;
}
static void __exit rpaphp_exit(void)
@@ -481,16 +448,7 @@ static int enable_slot(struct hotplug_slot *hotplug_slot)
dbg("ENABLING SLOT %s\n", slot->name);
down(&rpaphp_sem);
- switch (slot->dev_type) {
- case PCI_DEV:
- retval = rpaphp_enable_pci_slot(slot);
- break;
- case VIO_DEV:
- retval = rpaphp_enable_vio_slot(slot);
- break;
- default:
- retval = -EINVAL;
- }
+ retval = rpaphp_enable_pci_slot(slot);
up(&rpaphp_sem);
exit:
dbg("%s - Exit: rc[%d]\n", __FUNCTION__, retval);
@@ -511,16 +469,7 @@ static int disable_slot(struct hotplug_slot *hotplug_slot)
dbg("DISABLING SLOT %s\n", slot->name);
down(&rpaphp_sem);
- switch (slot->dev_type) {
- case PCI_DEV:
- retval = rpaphp_unconfig_pci_adapter(slot);
- break;
- case VIO_DEV:
- retval = rpaphp_unconfig_vio_adapter(slot);
- break;
- default:
- retval = -ENODEV;
- }
+ retval = rpaphp_unconfig_pci_adapter(slot);
up(&rpaphp_sem);
exit:
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)
{
struct pci_dev *dev;
- if (slot->dev_type == PCI_DEV) {
- dbg("%s: pci_devs of slot[%s]\n", __FUNCTION__, slot->name);
- list_for_each_entry (dev, slot->dev.pci_devs, bus_list)
- dbg("\t%s\n", pci_name(dev));
- }
+ dbg("%s: pci_devs of slot[%s]\n", __FUNCTION__, slot->name);
+ list_for_each_entry (dev, slot->pci_devs, bus_list)
+ dbg("\t%s\n", pci_name(dev));
return;
}
@@ -328,7 +326,7 @@ int rpaphp_unconfig_pci_adapter(struct slot *slot)
struct pci_dev *dev;
int retval = 0;
- list_for_each_entry(dev, slot->dev.pci_devs, bus_list)
+ list_for_each_entry(dev, slot->pci_devs, bus_list)
rpaphp_eeh_remove_bus_device(dev);
pci_remove_behind_bridge(slot->bridge);
@@ -401,7 +399,7 @@ static int setup_pci_slot(struct slot *slot)
bus = slot->bridge->subordinate;
if (!bus)
goto exit_rc;
- slot->dev.pci_devs = &bus->devices;
+ slot->pci_devs = &bus->devices;
dbg("%s set slot->name to %s\n", __FUNCTION__,
pci_name(slot->bridge));
@@ -434,7 +432,7 @@ static int setup_pci_slot(struct slot *slot)
goto exit_rc;
}
print_slot_pci_funcs(slot);
- if (!list_empty(slot->dev.pci_devs)) {
+ if (!list_empty(slot->pci_devs)) {
slot->state = CONFIGURED;
} else {
/* DLPAR add as opposed to
@@ -452,7 +450,6 @@ int register_pci_slot(struct slot *slot)
{
int rc = -EINVAL;
- slot->dev_type = PCI_DEV;
if ((slot->type == EMBEDDED) || (slot->type == PHB))
slot->removable = 0;
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)
__FUNCTION__, slot->name);
list_add(&slot->rpaphp_slot_list, &rpaphp_slot_head);
-
- if (slot->dev_type == VIO_DEV)
- info("Slot [%s](VIO location=%s) registered\n",
- slot->name, slot->location);
- else
- info("Slot [%s](PCI location=%s) registered\n",
- slot->name, slot->location);
+ info("Slot [%s](PCI location=%s) registered\n", slot->name,
+ slot->location);
num_slots++;
return 0;
}
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 @@
-/*
- * RPA Hot Plug Virtual I/O device functions
- * Copyright (C) 2004 Linda Xie <lxie@us.ibm.com>
- *
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for more
- * details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Send feedback to <lxie@us.ibm.com>
- *
- */
-#include <asm/vio.h>
-#include "rpaphp.h"
-
-/*
- * get_vio_adapter_status - get the status of a slot
- *
- * status:
- *
- * 1-- adapter is configured
- * 2-- adapter is not configured
- * 3-- not valid
- */
-inline int rpaphp_get_vio_adapter_status(struct slot *slot, int is_init, u8 *value)
-{
- *value = slot->state;
- return 0;
-}
-
-int rpaphp_unconfig_vio_adapter(struct slot *slot)
-{
- int retval = 0;
-
- dbg("Entry %s: slot[%s]\n", __FUNCTION__, slot->name);
- if (!slot->dev.vio_dev) {
- info("%s: no VIOA in slot[%s]\n", __FUNCTION__, slot->name);
- retval = -EINVAL;
- goto exit;
- }
- /* remove the device from the vio core */
- vio_unregister_device(slot->dev.vio_dev);
- slot->state = NOT_CONFIGURED;
- info("%s: adapter in slot[%s] unconfigured.\n", __FUNCTION__, slot->name);
-exit:
- dbg("Exit %s, rc=0x%x\n", __FUNCTION__, retval);
- return retval;
-}
-
-static int setup_vio_hotplug_slot_info(struct slot *slot)
-{
- slot->hotplug_slot->info->power_status = 1;
- rpaphp_get_vio_adapter_status(slot, 1,
- &slot->hotplug_slot->info->adapter_status);
- return 0;
-}
-
-int register_vio_slot(struct device_node *dn)
-{
- u32 *index;
- char *name;
- int rc = -EINVAL;
- struct slot *slot = NULL;
-
- rc = rpaphp_get_drc_props(dn, NULL, &name, NULL, NULL);
- if (rc < 0)
- goto exit_rc;
- index = (u32 *) get_property(dn, "ibm,my-drc-index", NULL);
- if (!index)
- goto exit_rc;
- if (!(slot = alloc_slot_struct(dn, *index, name, 0))) {
- rc = -ENOMEM;
- goto exit_rc;
- }
- slot->dev_type = VIO_DEV;
- slot->dev.vio_dev = vio_find_node(dn);
- if (slot->dev.vio_dev) {
- /*
- * rpaphp is the only owner of vio devices and
- * does not need extra reference taken by
- * vio_find_node
- */
- put_device(&slot->dev.vio_dev->dev);
- } else
- slot->dev.vio_dev = vio_register_device_node(dn);
- if (slot->dev.vio_dev)
- slot->state = CONFIGURED;
- else
- slot->state = NOT_CONFIGURED;
- if (setup_vio_hotplug_slot_info(slot))
- goto exit_rc;
- strcpy(slot->name, slot->dev.vio_dev->dev.bus_id);
- info("%s: registered VIO device[name=%s vio_dev=%p]\n",
- __FUNCTION__, slot->name, slot->dev.vio_dev);
- rc = register_slot(slot);
-exit_rc:
- if (rc && slot)
- dealloc_slot_struct(slot);
- return (rc);
-}
-
-int rpaphp_enable_vio_slot(struct slot *slot)
-{
- int retval = 0;
-
- if ((slot->dev.vio_dev = vio_register_device_node(slot->dn))) {
- info("%s: VIO adapter %s in slot[%s] has been configured\n",
- __FUNCTION__, slot->dn->name, slot->name);
- slot->state = CONFIGURED;
- } else {
- info("%s: no vio_dev struct for adapter in slot[%s]\n",
- __FUNCTION__, slot->name);
- slot->state = NOT_CONFIGURED;
- }
-
- return retval;
-}
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-30 16:39:23 +0300