pci_config_attr(subsystem_device, "0x%04x\n");
pci_config_attr(class, "0x%06x\n");
pci_config_attr(irq, "%u\n");
-pci_config_attr(is_enabled, "%u\n");
static ssize_t broken_parity_status_show(struct device *dev,
struct device_attribute *attr,
(u8)(pci_dev->class >> 16), (u8)(pci_dev->class >> 8),
(u8)(pci_dev->class));
}
-static ssize_t
-is_enabled_store(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
+
+static ssize_t is_enabled_store(struct device *dev,
+ struct device_attribute *attr, const char *buf,
+ size_t count)
{
+ ssize_t result = -EINVAL;
struct pci_dev *pdev = to_pci_dev(dev);
- int retval = 0;
/* this can crash the machine when done on the "wrong" device */
if (!capable(CAP_SYS_ADMIN))
return count;
- if (*buf == '0')
- pci_disable_device(pdev);
+ if (*buf == '0') {
+ if (atomic_read(&pdev->enable_cnt) != 0)
+ pci_disable_device(pdev);
+ else
+ result = -EIO;
+ } else if (*buf == '1')
+ result = pci_enable_device(pdev);
+
+ return result < 0 ? result : count;
+}
- if (*buf == '1')
- retval = pci_enable_device(pdev);
+static ssize_t is_enabled_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct pci_dev *pdev;
- if (retval)
- return retval;
- return count;
+ pdev = to_pci_dev (dev);
+ return sprintf (buf, "%u\n", atomic_read(&pdev->enable_cnt));
}
+#ifdef CONFIG_NUMA
+static ssize_t
+numa_node_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ return sprintf (buf, "%d\n", dev->numa_node);
+}
+#endif
+
static ssize_t
msi_bus_show(struct device *dev, struct device_attribute *attr, char *buf)
{
__ATTR_RO(irq),
__ATTR_RO(local_cpus),
__ATTR_RO(modalias),
+#ifdef CONFIG_NUMA
+ __ATTR_RO(numa_node),
+#endif
__ATTR(enable, 0600, is_enabled_show, is_enabled_store),
__ATTR(broken_parity_status,(S_IRUGO|S_IWUSR),
broken_parity_status_show,broken_parity_status_store),
*/
void pci_remove_sysfs_dev_files(struct pci_dev *pdev)
{
+ if (!sysfs_initialized)
+ return;
+
if (pdev->cfg_size < 4096)
sysfs_remove_bin_file(&pdev->dev.kobj, &pci_config_attr);
else