summaryrefslogtreecommitdiff
path: root/drivers/pci
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/hotplug/rpadlpar_core.c13
-rw-r--r--drivers/pci/hotplug/rpadlpar_sysfs.c3
-rw-r--r--drivers/pci/hotplug/rpaphp.h8
-rw-r--r--drivers/pci/hotplug/rpaphp_core.c107
-rw-r--r--drivers/pci/iov.c11
-rw-r--r--drivers/pci/pcie/aer/aerdrv_core.c3
6 files changed, 108 insertions, 37 deletions
diff --git a/drivers/pci/hotplug/rpadlpar_core.c b/drivers/pci/hotplug/rpadlpar_core.c
index a3449d717a99..fc01d7d807f3 100644
--- a/drivers/pci/hotplug/rpadlpar_core.c
+++ b/drivers/pci/hotplug/rpadlpar_core.c
@@ -27,6 +27,7 @@
#include <linux/mutex.h>
#include <asm/rtas.h>
#include <asm/vio.h>
+#include <linux/firmware.h>
#include "../pci.h"
#include "rpaphp.h"
@@ -44,15 +45,14 @@ static struct device_node *find_vio_slot_node(char *drc_name)
{
struct device_node *parent = of_find_node_by_name(NULL, "vdevice");
struct device_node *dn = NULL;
- char *name;
int rc;
if (!parent)
return NULL;
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)))
+ rc = rpaphp_check_drc_props(dn, drc_name, NULL);
+ if (rc == 0)
break;
}
@@ -64,15 +64,12 @@ static struct device_node *find_php_slot_pci_node(char *drc_name,
char *drc_type)
{
struct device_node *np = NULL;
- char *name;
- char *type;
int rc;
while ((np = of_find_node_by_name(np, "pci"))) {
- rc = rpaphp_get_drc_props(np, NULL, &name, &type, NULL);
+ rc = rpaphp_check_drc_props(np, drc_name, drc_type);
if (rc == 0)
- if (!strcmp(drc_name, name) && !strcmp(drc_type, type))
- break;
+ break;
}
return np;
diff --git a/drivers/pci/hotplug/rpadlpar_sysfs.c b/drivers/pci/hotplug/rpadlpar_sysfs.c
index edb5d8a53020..b806314349cf 100644
--- a/drivers/pci/hotplug/rpadlpar_sysfs.c
+++ b/drivers/pci/hotplug/rpadlpar_sysfs.c
@@ -16,6 +16,7 @@
#include <linux/string.h>
#include <linux/pci.h>
#include <linux/pci_hotplug.h>
+#include "rpaphp.h"
#include "rpadlpar.h"
#include "../pci.h"
@@ -27,8 +28,6 @@
#define ADD_SLOT_ATTR_NAME add_slot
#define REMOVE_SLOT_ATTR_NAME remove_slot
-#define MAX_DRC_NAME_LEN 64
-
static ssize_t add_slot_store(struct kobject *kobj, struct kobj_attribute *attr,
const char *buf, size_t nbytes)
{
diff --git a/drivers/pci/hotplug/rpaphp.h b/drivers/pci/hotplug/rpaphp.h
index 7db024e68fe6..bdb844b01a3d 100644
--- a/drivers/pci/hotplug/rpaphp.h
+++ b/drivers/pci/hotplug/rpaphp.h
@@ -64,6 +64,10 @@ extern bool rpaphp_debug;
#define CONFIGURED 1
#define EMPTY 0
+/* DRC constants */
+
+#define MAX_DRC_NAME_LEN 64
+
/*
* struct slot - slot information for each *physical* slot
*/
@@ -91,8 +95,8 @@ int rpaphp_get_sensor_state(struct slot *slot, int *state);
/* rpaphp_core.c */
int rpaphp_add_slot(struct device_node *dn);
-int rpaphp_get_drc_props(struct device_node *dn, int *drc_index,
- char **drc_name, char **drc_type, int *drc_power_domain);
+int rpaphp_check_drc_props(struct device_node *dn, char *drc_name,
+ char *drc_type);
/* rpaphp_slot.c */
void dealloc_slot_struct(struct slot *slot);
diff --git a/drivers/pci/hotplug/rpaphp_core.c b/drivers/pci/hotplug/rpaphp_core.c
index 1e29abaaea08..53902c7c38f2 100644
--- a/drivers/pci/hotplug/rpaphp_core.c
+++ b/drivers/pci/hotplug/rpaphp_core.c
@@ -30,6 +30,7 @@
#include <linux/smp.h>
#include <linux/init.h>
#include <linux/vmalloc.h>
+#include <asm/firmware.h>
#include <asm/eeh.h> /* for eeh_add_device() */
#include <asm/rtas.h> /* rtas_call */
#include <asm/pci-bridge.h> /* for pci_controller */
@@ -196,25 +197,21 @@ static int get_children_props(struct device_node *dn, const int **drc_indexes,
return 0;
}
-/* To get the DRC props describing the current node, first obtain it's
- * my-drc-index property. Next obtain the DRC list from it's parent. Use
- * the my-drc-index for correlation, and obtain the requested properties.
+
+/* Verify the existence of 'drc_name' and/or 'drc_type' within the
+ * current node. First obtain it's my-drc-index property. Next,
+ * obtain the DRC info from it's parent. Use the my-drc-index for
+ * correlation, and obtain/validate the requested properties.
*/
-int rpaphp_get_drc_props(struct device_node *dn, int *drc_index,
- char **drc_name, char **drc_type, int *drc_power_domain)
+
+static int rpaphp_check_drc_props_v1(struct device_node *dn, char *drc_name,
+ char *drc_type, unsigned int my_index)
{
+ char *name_tmp, *type_tmp;
const int *indexes, *names;
const int *types, *domains;
- const unsigned int *my_index;
- char *name_tmp, *type_tmp;
int i, rc;
- my_index = of_get_property(dn, "ibm,my-drc-index", NULL);
- if (!my_index) {
- /* Node isn't DLPAR/hotplug capable */
- return -EINVAL;
- }
-
rc = get_children_props(dn->parent, &indexes, &names, &types, &domains);
if (rc < 0) {
return -EINVAL;
@@ -225,24 +222,84 @@ int rpaphp_get_drc_props(struct device_node *dn, int *drc_index,
/* Iterate through parent properties, looking for my-drc-index */
for (i = 0; i < be32_to_cpu(indexes[0]); i++) {
- if ((unsigned int) indexes[i + 1] == *my_index) {
- if (drc_name)
- *drc_name = name_tmp;
- if (drc_type)
- *drc_type = type_tmp;
- if (drc_index)
- *drc_index = be32_to_cpu(*my_index);
- if (drc_power_domain)
- *drc_power_domain = be32_to_cpu(domains[i+1]);
- return 0;
- }
+ if ((unsigned int) indexes[i + 1] == my_index)
+ break;
+
name_tmp += (strlen(name_tmp) + 1);
type_tmp += (strlen(type_tmp) + 1);
}
+ if (((drc_name == NULL) || (drc_name && !strcmp(drc_name, name_tmp))) &&
+ ((drc_type == NULL) || (drc_type && !strcmp(drc_type, type_tmp))))
+ return 0;
+
return -EINVAL;
}
-EXPORT_SYMBOL_GPL(rpaphp_get_drc_props);
+
+static int rpaphp_check_drc_props_v2(struct device_node *dn, char *drc_name,
+ char *drc_type, unsigned int my_index)
+{
+ struct property *info;
+ unsigned int entries;
+ struct of_drc_info drc;
+ const __be32 *value;
+ char cell_drc_name[MAX_DRC_NAME_LEN];
+ int j, fndit;
+
+ info = of_find_property(dn->parent, "ibm,drc-info", NULL);
+ if (info == NULL)
+ return -EINVAL;
+
+ value = of_prop_next_u32(info, NULL, &entries);
+ if (!value)
+ return -EINVAL;
+
+ for (j = 0; j < entries; j++) {
+ of_read_drc_info_cell(&info, &value, &drc);
+
+ /* Should now know end of current entry */
+
+ if (my_index > drc.last_drc_index)
+ continue;
+
+ fndit = 1;
+ break;
+ }
+ /* Found it */
+
+ if (fndit)
+ sprintf(cell_drc_name, "%s%d", drc.drc_name_prefix,
+ my_index);
+
+ if (((drc_name == NULL) ||
+ (drc_name && !strcmp(drc_name, cell_drc_name))) &&
+ ((drc_type == NULL) ||
+ (drc_type && !strcmp(drc_type, drc.drc_type))))
+ return 0;
+
+ return -EINVAL;
+}
+
+int rpaphp_check_drc_props(struct device_node *dn, char *drc_name,
+ char *drc_type)
+{
+ const unsigned int *my_index;
+
+ my_index = of_get_property(dn, "ibm,my-drc-index", NULL);
+ if (!my_index) {
+ /* Node isn't DLPAR/hotplug capable */
+ return -EINVAL;
+ }
+
+ if (firmware_has_feature(FW_FEATURE_DRC_INFO))
+ return rpaphp_check_drc_props_v2(dn, drc_name, drc_type,
+ *my_index);
+ else
+ return rpaphp_check_drc_props_v1(dn, drc_name, drc_type,
+ *my_index);
+}
+EXPORT_SYMBOL_GPL(rpaphp_check_drc_props);
+
static int is_php_type(char *drc_type)
{
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
index 6bacb8995e96..0b7b5da63d4e 100644
--- a/drivers/pci/iov.c
+++ b/drivers/pci/iov.c
@@ -636,6 +636,17 @@ void pci_restore_iov_state(struct pci_dev *dev)
}
/**
+ * pci_vf_drivers_autoprobe - set PF property drivers_autoprobe for VFs
+ * @dev: the PCI device
+ * @auto_probe: set VF drivers auto probe flag
+ */
+void pci_vf_drivers_autoprobe(struct pci_dev *dev, bool auto_probe)
+{
+ if (dev->is_physfn)
+ dev->sriov->drivers_autoprobe = auto_probe;
+}
+
+/**
* pci_iov_bus_range - find bus range used by Virtual Function
* @bus: the PCI bus
*
diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c
index 744805232155..8d7448063fd1 100644
--- a/drivers/pci/pcie/aer/aerdrv_core.c
+++ b/drivers/pci/pcie/aer/aerdrv_core.c
@@ -278,6 +278,7 @@ static int report_error_detected(struct pci_dev *dev, void *data)
} else {
err_handler = dev->driver->err_handler;
vote = err_handler->error_detected(dev, result_data->state);
+ pci_uevent_ers(dev, PCI_ERS_RESULT_NONE);
}
result_data->result = merge_result(result_data->result, vote);
@@ -341,6 +342,7 @@ static int report_resume(struct pci_dev *dev, void *data)
err_handler = dev->driver->err_handler;
err_handler->resume(dev);
+ pci_uevent_ers(dev, PCI_ERS_RESULT_RECOVERED);
out:
device_unlock(&dev->dev);
return 0;
@@ -541,6 +543,7 @@ static void do_recovery(struct pci_dev *dev, int severity)
return;
failed:
+ pci_uevent_ers(dev, PCI_ERS_RESULT_DISCONNECT);
/* TODO: Should kernel panic here? */
dev_info(&dev->dev, "AER: Device recovery failed\n");
}
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-20 12:46:07 +0000