diff options
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/pci/pci.c | 4 | ||||
| -rw-r--r-- | arch/s390/pci/pci_sysfs.c | 27 |
2 files changed, 29 insertions, 2 deletions
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c index 61167b1209a..b0ccd424308 100644 --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -791,6 +791,8 @@ int zpci_enable_device(struct zpci_dev *zdev) rc = zpci_dma_init_device(zdev); if (rc) goto out_dma; + + zdev->state = ZPCI_FN_STATE_ONLINE; return 0; out_dma: @@ -819,8 +821,6 @@ int zpci_create_device(struct zpci_dev *zdev) rc = zpci_enable_device(zdev); if (rc) goto out_free; - - zdev->state = ZPCI_FN_STATE_ONLINE; } rc = zpci_scan_bus(zdev); if (rc) diff --git a/arch/s390/pci/pci_sysfs.c b/arch/s390/pci/pci_sysfs.c index e99a2557f18..cf8a12ff733 100644 --- a/arch/s390/pci/pci_sysfs.c +++ b/arch/s390/pci/pci_sysfs.c @@ -48,11 +48,38 @@ static ssize_t show_pfgid(struct device *dev, struct device_attribute *attr, } static DEVICE_ATTR(pfgid, S_IRUGO, show_pfgid, NULL); +static void recover_callback(struct device *dev) +{ + struct pci_dev *pdev = to_pci_dev(dev); + struct zpci_dev *zdev = get_zdev(pdev); + int ret; + + pci_stop_and_remove_bus_device(pdev); + ret = zpci_disable_device(zdev); + if (ret) + return; + + ret = zpci_enable_device(zdev); + if (ret) + return; + + pci_rescan_bus(zdev->bus); +} + +static ssize_t store_recover(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + int rc = device_schedule_callback(dev, recover_callback); + return rc ? rc : count; +} +static DEVICE_ATTR(recover, S_IWUSR, NULL, store_recover); + static struct device_attribute *zpci_dev_attrs[] = { &dev_attr_function_id, &dev_attr_function_handle, &dev_attr_pchid, &dev_attr_pfgid, + &dev_attr_recover, NULL, }; |