diff options
Diffstat (limited to 'drivers/s390/scsi/zfcp_sysfs_adapter.c')
| -rw-r--r-- | drivers/s390/scsi/zfcp_sysfs_adapter.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/s390/scsi/zfcp_sysfs_adapter.c b/drivers/s390/scsi/zfcp_sysfs_adapter.c index 1f2a8c21b731..a4cae60f69d4 100644 --- a/drivers/s390/scsi/zfcp_sysfs_adapter.c +++ b/drivers/s390/scsi/zfcp_sysfs_adapter.c @@ -85,6 +85,30 @@ zfcp_sysfs_port_add_store(struct device *dev, struct device_attribute *attr, con static DEVICE_ATTR(port_add, S_IWUSR, NULL, zfcp_sysfs_port_add_store); /** + * zfcp_sysfs_port_rescan - trigger manual port rescan + * @dev: pointer to belonging device + * @attr: pointer to struct device_attribute + * @buf: pointer to input buffer + * @count: number of bytes in buffer + */ +static ssize_t zfcp_sysfs_port_rescan_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct zfcp_adapter *adapter; + int ret; + + adapter = dev_get_drvdata(dev); + if (atomic_test_mask(ZFCP_STATUS_COMMON_REMOVE, &adapter->status)) + return -EBUSY; + + ret = zfcp_scan_ports(adapter); + + return ret ? ret : (ssize_t) count; +} +static DEVICE_ATTR(port_rescan, S_IWUSR, NULL, zfcp_sysfs_port_rescan_store); + +/** * zfcp_sysfs_port_remove_store - remove a port from sysfs tree * @dev: pointer to belonging device * @buf: pointer to input buffer @@ -214,6 +238,7 @@ static struct attribute *zfcp_adapter_attrs[] = { &dev_attr_in_recovery.attr, &dev_attr_port_remove.attr, &dev_attr_port_add.attr, + &dev_attr_port_rescan.attr, &dev_attr_peer_wwnn.attr, &dev_attr_peer_wwpn.attr, &dev_attr_peer_d_id.attr, |