int pciehp_poll_mode;
int pciehp_poll_time;
int pciehp_force;
-static int pciehp_slot_with_bus;
struct workqueue_struct *pciehp_wq;
#define DRIVER_VERSION "0.4"
module_param(pciehp_poll_mode, bool, 0644);
module_param(pciehp_poll_time, int, 0644);
module_param(pciehp_force, bool, 0644);
-module_param(pciehp_slot_with_bus, bool, 0644);
MODULE_PARM_DESC(pciehp_debug, "Debugging mode enabled or not");
MODULE_PARM_DESC(pciehp_poll_mode, "Using polling mechanism for hot-plug events or not");
MODULE_PARM_DESC(pciehp_poll_time, "Polling mechanism frequency, in seconds");
MODULE_PARM_DESC(pciehp_force, "Force pciehp, even if _OSC and OSHP are missing");
-MODULE_PARM_DESC(pciehp_slot_with_bus, "Use bus number in the slot name");
#define PCIE_MODULE_NAME "pciehp"
static int get_attention_status (struct hotplug_slot *slot, u8 *value);
static int get_latch_status (struct hotplug_slot *slot, u8 *value);
static int get_adapter_status (struct hotplug_slot *slot, u8 *value);
-static int get_address (struct hotplug_slot *slot, u32 *value);
static int get_max_bus_speed (struct hotplug_slot *slot, enum pci_bus_speed *value);
static int get_cur_bus_speed (struct hotplug_slot *slot, enum pci_bus_speed *value);
.get_attention_status = get_attention_status,
.get_latch_status = get_latch_status,
.get_adapter_status = get_adapter_status,
- .get_address = get_address,
.get_max_bus_speed = get_max_bus_speed,
.get_cur_bus_speed = get_cur_bus_speed,
};
mutex_lock(&slot->ctrl->crit_sect);
/* has it been >1 sec since our last toggle? */
- if ((get_seconds() - slot->last_emi_toggle) < 1)
+ if ((get_seconds() - slot->last_emi_toggle) < 1) {
+ mutex_unlock(&slot->ctrl->crit_sect);
return -EINVAL;
+ }
/* see what our current state is */
retval = get_lock_status(hotplug_slot, &value);
* sysfs interface which allows the user to toggle the Electro Mechanical
* Interlock. Valid values are either 0 or 1. 0 == unlock, 1 == lock
*/
-static ssize_t lock_write_file(struct hotplug_slot *slot, const char *buf,
- size_t count)
+static ssize_t lock_write_file(struct hotplug_slot *hotplug_slot,
+ const char *buf, size_t count)
{
+ struct slot *slot = hotplug_slot->private;
unsigned long llock;
u8 lock;
int retval = 0;
switch (lock) {
case 0:
case 1:
- retval = set_lock_status(slot, lock);
+ retval = set_lock_status(hotplug_slot, lock);
break;
default:
- err ("%d is an invalid lock value\n", lock);
+ ctrl_err(slot->ctrl, "%d is an invalid lock value\n",
+ lock);
retval = -EINVAL;
}
if (retval)
{
struct slot *slot = hotplug_slot->private;
- dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name);
-
- kfree(slot->hotplug_slot->info);
- kfree(slot->hotplug_slot);
- kfree(slot);
-}
+ ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
+ __func__, hotplug_slot_name(hotplug_slot));
-static void make_slot_name(struct slot *slot)
-{
- if (pciehp_slot_with_bus)
- snprintf(slot->hotplug_slot->name, SLOT_NAME_SIZE, "%04d_%04d",
- slot->bus, slot->number);
- else
- snprintf(slot->hotplug_slot->name, SLOT_NAME_SIZE, "%d",
- slot->number);
+ kfree(hotplug_slot->info);
+ kfree(hotplug_slot);
}
static int init_slots(struct controller *ctrl)
struct slot *slot;
struct hotplug_slot *hotplug_slot;
struct hotplug_slot_info *info;
+ char name[SLOT_NAME_SIZE];
int retval = -ENOMEM;
- int i;
-
- for (i = 0; i < ctrl->num_slots; i++) {
- slot = kzalloc(sizeof(*slot), GFP_KERNEL);
- if (!slot)
- goto error;
+ list_for_each_entry(slot, &ctrl->slot_list, slot_list) {
hotplug_slot = kzalloc(sizeof(*hotplug_slot), GFP_KERNEL);
if (!hotplug_slot)
- goto error_slot;
- slot->hotplug_slot = hotplug_slot;
+ goto error;
info = kzalloc(sizeof(*info), GFP_KERNEL);
if (!info)
goto error_hpslot;
- hotplug_slot->info = info;
-
- hotplug_slot->name = slot->name;
-
- slot->hp_slot = i;
- slot->ctrl = ctrl;
- slot->bus = ctrl->pci_dev->subordinate->number;
- slot->device = ctrl->slot_device_offset + i;
- slot->hpc_ops = ctrl->hpc_ops;
- slot->number = ctrl->first_slot;
- mutex_init(&slot->lock);
- INIT_DELAYED_WORK(&slot->work, pciehp_queue_pushbutton_work);
/* register this slot with the hotplug pci core */
+ hotplug_slot->info = info;
hotplug_slot->private = slot;
hotplug_slot->release = &release_slot;
- make_slot_name(slot);
hotplug_slot->ops = &pciehp_hotplug_slot_ops;
-
+ slot->hotplug_slot = hotplug_slot;
+ snprintf(name, SLOT_NAME_SIZE, "%u", slot->number);
+
+ ctrl_dbg(ctrl, "Registering domain:bus:dev=%04x:%02x:%02x "
+ "hp_slot=%x sun=%x slot_device_offset=%x\n",
+ pci_domain_nr(ctrl->pci_dev->subordinate),
+ slot->bus, slot->device, slot->hp_slot, slot->number,
+ ctrl->slot_device_offset);
+ retval = pci_hp_register(hotplug_slot,
+ ctrl->pci_dev->subordinate,
+ slot->device,
+ name);
+ if (retval) {
+ ctrl_err(ctrl, "pci_hp_register failed with error %d\n",
+ retval);
+ goto error_info;
+ }
get_power_status(hotplug_slot, &info->power_status);
get_attention_status(hotplug_slot, &info->attention_status);
get_latch_status(hotplug_slot, &info->latch_status);
get_adapter_status(hotplug_slot, &info->adapter_status);
-
- dbg("Registering bus=%x dev=%x hp_slot=%x sun=%x "
- "slot_device_offset=%x\n", slot->bus, slot->device,
- slot->hp_slot, slot->number, ctrl->slot_device_offset);
- retval = pci_hp_register(hotplug_slot);
- if (retval) {
- err("pci_hp_register failed with error %d\n", retval);
- if (retval == -EEXIST)
- err("Failed to register slot because of name "
- "collision. Try \'pciehp_slot_with_bus\' "
- "module option.\n");
- goto error_info;
- }
/* create additional sysfs entries */
if (EMI(ctrl)) {
- retval = sysfs_create_file(&hotplug_slot->kobj,
+ retval = sysfs_create_file(&hotplug_slot->pci_slot->kobj,
&hotplug_slot_attr_lock.attr);
if (retval) {
pci_hp_deregister(hotplug_slot);
- err("cannot create additional sysfs entries\n");
+ ctrl_err(ctrl, "Cannot create additional sysfs "
+ "entries\n");
goto error_info;
}
}
-
- list_add(&slot->slot_list, &ctrl->slot_list);
}
return 0;
kfree(info);
error_hpslot:
kfree(hotplug_slot);
-error_slot:
- kfree(slot);
error:
return retval;
}
static void cleanup_slots(struct controller *ctrl)
{
- struct list_head *tmp;
- struct list_head *next;
struct slot *slot;
- list_for_each_safe(tmp, next, &ctrl->slot_list) {
- slot = list_entry(tmp, struct slot, slot_list);
- list_del(&slot->slot_list);
+ list_for_each_entry(slot, &ctrl->slot_list, slot_list) {
if (EMI(ctrl))
- sysfs_remove_file(&slot->hotplug_slot->kobj,
+ sysfs_remove_file(&slot->hotplug_slot->pci_slot->kobj,
&hotplug_slot_attr_lock.attr);
- cancel_delayed_work(&slot->work);
- flush_scheduled_work();
- flush_workqueue(pciehp_wq);
pci_hp_deregister(slot->hotplug_slot);
}
}
{
struct slot *slot = hotplug_slot->private;
- dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name);
+ ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
+ __func__, slot_name(slot));
hotplug_slot->info->attention_status = status;
{
struct slot *slot = hotplug_slot->private;
- dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name);
+ ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
+ __func__, slot_name(slot));
return pciehp_sysfs_enable_slot(slot);
}
{
struct slot *slot = hotplug_slot->private;
- dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name);
+ ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
+ __func__, slot_name(slot));
return pciehp_sysfs_disable_slot(slot);
}
struct slot *slot = hotplug_slot->private;
int retval;
- dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name);
+ ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
+ __func__, slot_name(slot));
retval = slot->hpc_ops->get_power_status(slot, value);
if (retval < 0)
struct slot *slot = hotplug_slot->private;
int retval;
- dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name);
+ ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
+ __func__, slot_name(slot));
retval = slot->hpc_ops->get_attention_status(slot, value);
if (retval < 0)
struct slot *slot = hotplug_slot->private;
int retval;
- dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name);
+ ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
+ __func__, slot_name(slot));
retval = slot->hpc_ops->get_latch_status(slot, value);
if (retval < 0)
struct slot *slot = hotplug_slot->private;
int retval;
- dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name);
+ ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
+ __func__, slot_name(slot));
retval = slot->hpc_ops->get_adapter_status(slot, value);
if (retval < 0)
return 0;
}
-static int get_address(struct hotplug_slot *hotplug_slot, u32 *value)
-{
- struct slot *slot = hotplug_slot->private;
- struct pci_bus *bus = slot->ctrl->pci_dev->subordinate;
-
- dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name);
-
- *value = (pci_domain_nr(bus) << 16) | (slot->bus << 8) | slot->device;
-
- return 0;
-}
-
-static int get_max_bus_speed(struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value)
+static int get_max_bus_speed(struct hotplug_slot *hotplug_slot,
+ enum pci_bus_speed *value)
{
struct slot *slot = hotplug_slot->private;
int retval;
- dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name);
+ ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
+ __func__, slot_name(slot));
retval = slot->hpc_ops->get_max_bus_speed(slot, value);
if (retval < 0)
struct slot *slot = hotplug_slot->private;
int retval;
- dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name);
+ ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
+ __func__, slot_name(slot));
retval = slot->hpc_ops->get_cur_bus_speed(slot, value);
if (retval < 0)
struct controller *ctrl;
struct slot *t_slot;
u8 value;
- struct pci_dev *pdev;
+ struct pci_dev *pdev = dev->port;
- ctrl = kzalloc(sizeof(*ctrl), GFP_KERNEL);
- if (!ctrl) {
- err("%s : out of memory\n", __func__);
+ if (pciehp_force)
+ dev_info(&dev->device,
+ "Bypassing BIOS check for pciehp use on %s\n",
+ pci_name(pdev));
+ else if (pciehp_get_hp_hw_control_from_firmware(pdev))
goto err_out_none;
- }
- INIT_LIST_HEAD(&ctrl->slot_list);
-
- pdev = dev->port;
- rc = pcie_init(ctrl, dev);
- if (rc) {
- dbg("%s: controller initialization failed\n", PCIE_MODULE_NAME);
- goto err_out_free_ctrl;
+ ctrl = pcie_init(dev);
+ if (!ctrl) {
+ dev_err(&dev->device, "Controller initialization failed\n");
+ goto err_out_none;
}
-
- pci_set_drvdata(pdev, ctrl);
-
- dbg("%s: ctrl bus=0x%x, device=%x, function=%x, irq=%x\n",
- __func__, pdev->bus->number, PCI_SLOT(pdev->devfn),
- PCI_FUNC(pdev->devfn), pdev->irq);
+ set_service_data(dev, ctrl);
/* Setup the slot information structures */
rc = init_slots(ctrl);
if (rc) {
- err("%s: slot initialization failed\n", PCIE_MODULE_NAME);
+ if (rc == -EBUSY)
+ ctrl_warn(ctrl, "Slot already registered by another "
+ "hotplug driver\n");
+ else
+ ctrl_err(ctrl, "Slot initialization failed\n");
goto err_out_release_ctlr;
}
+ /* Check if slot is occupied */
t_slot = pciehp_find_slot(ctrl, ctrl->slot_device_offset);
-
- t_slot->hpc_ops->get_adapter_status(t_slot, &value); /* Check if slot is occupied */
- if (value && pciehp_force) {
- rc = pciehp_enable_slot(t_slot);
- if (rc) /* -ENODEV: shouldn't happen, but deal with it */
- value = 0;
- }
- if ((POWER_CTRL(ctrl)) && !value) {
- rc = t_slot->hpc_ops->power_off_slot(t_slot); /* Power off slot if not occupied*/
- if (rc)
- goto err_out_free_ctrl_slot;
+ t_slot->hpc_ops->get_adapter_status(t_slot, &value);
+ if (value) {
+ if (pciehp_force)
+ pciehp_enable_slot(t_slot);
+ } else {
+ /* Power off slot if not occupied */
+ if (POWER_CTRL(ctrl)) {
+ rc = t_slot->hpc_ops->power_off_slot(t_slot);
+ if (rc)
+ goto err_out_free_ctrl_slot;
+ }
}
return 0;
cleanup_slots(ctrl);
err_out_release_ctlr:
ctrl->hpc_ops->release_ctlr(ctrl);
-err_out_free_ctrl:
- kfree(ctrl);
err_out_none:
return -ENODEV;
}
static void pciehp_remove (struct pcie_device *dev)
{
- struct pci_dev *pdev = dev->port;
- struct controller *ctrl = pci_get_drvdata(pdev);
+ struct controller *ctrl = get_service_data(dev);
cleanup_slots(ctrl);
ctrl->hpc_ops->release_ctlr(ctrl);
- kfree(ctrl);
}
#ifdef CONFIG_PM
static int pciehp_suspend (struct pcie_device *dev, pm_message_t state)
{
- printk("%s ENTRY\n", __func__);
+ dev_info(&dev->device, "%s ENTRY\n", __func__);
return 0;
}
static int pciehp_resume (struct pcie_device *dev)
{
- printk("%s ENTRY\n", __func__);
+ dev_info(&dev->device, "%s ENTRY\n", __func__);
if (pciehp_force) {
- struct pci_dev *pdev = dev->port;
- struct controller *ctrl = pci_get_drvdata(pdev);
+ struct controller *ctrl = get_service_data(dev);
struct slot *t_slot;
u8 status;
/* reinitialize the chipset's event detection logic */
- pcie_init_hardware_part2(ctrl, dev);
+ pcie_enable_notification(ctrl);
t_slot = pciehp_find_slot(ctrl, ctrl->slot_device_offset);
.driver_data = 0,
}, { /* end: all zeroes */ }
};
-static const char device_name[] = "hpdriver";
static struct pcie_port_service_driver hpdriver_portdrv = {
- .name = (char *)device_name,
+ .name = PCIE_MODULE_NAME,
.id_table = &port_pci_ids[0],
.probe = pciehp_probe,
{
int retval = 0;
+ pciehp_firmware_init();
retval = pcie_port_service_register(&hpdriver_portdrv);
dbg("pcie_port_service_register = %d\n", retval);
info(DRIVER_DESC " version: " DRIVER_VERSION "\n");
if (retval)
- dbg("%s: Failure to register service\n", __func__);
+ dbg("Failure to register service\n");
return retval;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff