diff options
Diffstat (limited to 'drivers/s390/scsi/zfcp_sysfs.c')
| -rw-r--r-- | drivers/s390/scsi/zfcp_sysfs.c | 70 |
1 files changed, 69 insertions, 1 deletions
diff --git a/drivers/s390/scsi/zfcp_sysfs.c b/drivers/s390/scsi/zfcp_sysfs.c index a711a0d15100..7ec30ded0169 100644 --- a/drivers/s390/scsi/zfcp_sysfs.c +++ b/drivers/s390/scsi/zfcp_sysfs.c @@ -4,7 +4,7 @@ * * sysfs attributes. * - * Copyright IBM Corp. 2008, 2010 + * Copyright IBM Corp. 2008, 2020 */ #define KMSG_COMPONENT "zfcp" @@ -370,6 +370,42 @@ static ZFCP_DEV_ATTR(adapter, diag_max_age, 0644, zfcp_sysfs_adapter_diag_max_age_show, zfcp_sysfs_adapter_diag_max_age_store); +static ssize_t zfcp_sysfs_adapter_fc_security_show( + struct device *dev, struct device_attribute *attr, char *buf) +{ + struct ccw_device *cdev = to_ccwdev(dev); + struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev); + unsigned int status; + int i; + + if (!adapter) + return -ENODEV; + + /* + * Adapter status COMMON_OPEN implies xconf data and xport data + * was done. Adapter FC Endpoint Security capability remains + * unchanged in case of COMMON_ERP_FAILED (e.g. due to local link + * down). + */ + status = atomic_read(&adapter->status); + if (0 == (status & ZFCP_STATUS_COMMON_OPEN)) + i = sprintf(buf, "unknown\n"); + else if (!(adapter->adapter_features & FSF_FEATURE_FC_SECURITY)) + i = sprintf(buf, "unsupported\n"); + else { + i = zfcp_fsf_scnprint_fc_security( + buf, PAGE_SIZE - 1, adapter->fc_security_algorithms, + ZFCP_FSF_PRINT_FMT_LIST); + i += scnprintf(buf + i, PAGE_SIZE - i, "\n"); + } + + zfcp_ccw_adapter_put(adapter); + return i; +} +static ZFCP_DEV_ATTR(adapter, fc_security, S_IRUGO, + zfcp_sysfs_adapter_fc_security_show, + NULL); + static struct attribute *zfcp_adapter_attrs[] = { &dev_attr_adapter_failed.attr, &dev_attr_adapter_in_recovery.attr, @@ -383,6 +419,7 @@ static struct attribute *zfcp_adapter_attrs[] = { &dev_attr_adapter_status.attr, &dev_attr_adapter_hardware_version.attr, &dev_attr_adapter_diag_max_age.attr, + &dev_attr_adapter_fc_security.attr, NULL }; @@ -426,6 +463,36 @@ static ssize_t zfcp_sysfs_unit_remove_store(struct device *dev, } static DEVICE_ATTR(unit_remove, S_IWUSR, NULL, zfcp_sysfs_unit_remove_store); +static ssize_t zfcp_sysfs_port_fc_security_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct zfcp_port *port = container_of(dev, struct zfcp_port, dev); + struct zfcp_adapter *adapter = port->adapter; + unsigned int status = atomic_read(&port->status); + int i; + + if (0 == (status & ZFCP_STATUS_COMMON_OPEN) || + 0 == (status & ZFCP_STATUS_COMMON_UNBLOCKED) || + 0 == (status & ZFCP_STATUS_PORT_PHYS_OPEN) || + 0 != (status & ZFCP_STATUS_COMMON_ERP_FAILED) || + 0 != (status & ZFCP_STATUS_COMMON_ACCESS_BOXED)) + i = sprintf(buf, "unknown\n"); + else if (!(adapter->adapter_features & FSF_FEATURE_FC_SECURITY)) + i = sprintf(buf, "unsupported\n"); + else { + i = zfcp_fsf_scnprint_fc_security( + buf, PAGE_SIZE - 1, port->connection_info, + ZFCP_FSF_PRINT_FMT_SINGLEITEM); + i += scnprintf(buf + i, PAGE_SIZE - i, "\n"); + } + + return i; +} +static ZFCP_DEV_ATTR(port, fc_security, S_IRUGO, + zfcp_sysfs_port_fc_security_show, + NULL); + static struct attribute *zfcp_port_attrs[] = { &dev_attr_unit_add.attr, &dev_attr_unit_remove.attr, @@ -433,6 +500,7 @@ static struct attribute *zfcp_port_attrs[] = { &dev_attr_port_in_recovery.attr, &dev_attr_port_status.attr, &dev_attr_port_access_denied.attr, + &dev_attr_port_fc_security.attr, NULL }; static struct attribute_group zfcp_port_attr_group = { |