diff options
| -rw-r--r-- | drivers/staging/unisys/visorchipset/visorchipset_main.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/drivers/staging/unisys/visorchipset/visorchipset_main.c b/drivers/staging/unisys/visorchipset/visorchipset_main.c index 34b28d6b7410..858f5c5c19d0 100644 --- a/drivers/staging/unisys/visorchipset/visorchipset_main.c +++ b/drivers/staging/unisys/visorchipset/visorchipset_main.c @@ -285,6 +285,14 @@ static ssize_t chipsetready_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count); static DEVICE_ATTR_WO(chipsetready); +static ssize_t devicedisabled_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count); +static DEVICE_ATTR_WO(devicedisabled); + +static ssize_t deviceenabled_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count); +static DEVICE_ATTR_WO(deviceenabled); + static struct attribute *visorchipset_install_attrs[] = { &dev_attr_toolaction.attr, &dev_attr_boottotool.attr, @@ -309,9 +317,21 @@ static struct attribute_group visorchipset_guest_group = { .attrs = visorchipset_guest_attrs }; +static struct attribute *visorchipset_parahotplug_attrs[] = { + &dev_attr_devicedisabled.attr, + &dev_attr_deviceenabled.attr, + NULL +}; + +static struct attribute_group visorchipset_parahotplug_group = { + .name = "parahotplug", + .attrs = visorchipset_parahotplug_attrs +}; + static const struct attribute_group *visorchipset_dev_groups[] = { &visorchipset_install_group, &visorchipset_guest_group, + &visorchipset_parahotplug_group, NULL }; @@ -2270,6 +2290,38 @@ static ssize_t chipsetready_store(struct device *dev, return -EINVAL; } +/* The parahotplug/devicedisabled interface gets called by our support script + * when an SR-IOV device has been shut down. The ID is passed to the script + * and then passed back when the device has been removed. + */ +static ssize_t devicedisabled_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + uint id; + + if (kstrtouint(buf, 10, &id) != 0) + return -EINVAL; + + parahotplug_request_complete(id, 0); + return count; +} + +/* The parahotplug/deviceenabled interface gets called by our support script + * when an SR-IOV device has been recovered. The ID is passed to the script + * and then passed back when the device has been brought back up. + */ +static ssize_t deviceenabled_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + uint id; + + if (kstrtouint(buf, 10, &id) != 0) + return -EINVAL; + + parahotplug_request_complete(id, 1); + return count; +} + static int __init visorchipset_init(void) { |