summaryrefslogtreecommitdiffstats
path: root/drivers/s390/scsi/zfcp_ccw.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/s390/scsi/zfcp_ccw.c')
-rw-r--r--drivers/s390/scsi/zfcp_ccw.c63
1 files changed, 53 insertions, 10 deletions
diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c
index 733fe3bf628..d9da5c42ccb 100644
--- a/drivers/s390/scsi/zfcp_ccw.c
+++ b/drivers/s390/scsi/zfcp_ccw.c
@@ -11,6 +11,54 @@
#include "zfcp_ext.h"
+#define ZFCP_MODEL_PRIV 0x4
+
+static int zfcp_ccw_suspend(struct ccw_device *cdev)
+
+{
+ struct zfcp_adapter *adapter = dev_get_drvdata(&cdev->dev);
+
+ down(&zfcp_data.config_sema);
+
+ zfcp_erp_adapter_shutdown(adapter, 0, "ccsusp1", NULL);
+ zfcp_erp_wait(adapter);
+
+ up(&zfcp_data.config_sema);
+
+ return 0;
+}
+
+static int zfcp_ccw_activate(struct ccw_device *cdev)
+
+{
+ struct zfcp_adapter *adapter = dev_get_drvdata(&cdev->dev);
+
+ zfcp_erp_modify_adapter_status(adapter, "ccresu1", NULL,
+ ZFCP_STATUS_COMMON_RUNNING, ZFCP_SET);
+ zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED,
+ "ccresu2", NULL);
+ zfcp_erp_wait(adapter);
+ flush_work(&adapter->scan_work);
+
+ return 0;
+}
+
+static struct ccw_device_id zfcp_ccw_device_id[] = {
+ { CCW_DEVICE_DEVTYPE(0x1731, 0x3, 0x1732, 0x3) },
+ { CCW_DEVICE_DEVTYPE(0x1731, 0x3, 0x1732, ZFCP_MODEL_PRIV) },
+ {},
+};
+MODULE_DEVICE_TABLE(ccw, zfcp_ccw_device_id);
+
+/**
+ * zfcp_ccw_priv_sch - check if subchannel is privileged
+ * @adapter: Adapter/Subchannel to check
+ */
+int zfcp_ccw_priv_sch(struct zfcp_adapter *adapter)
+{
+ return adapter->ccw_device->id.dev_model == ZFCP_MODEL_PRIV;
+}
+
/**
* zfcp_ccw_probe - probe function of zfcp driver
* @ccw_device: pointer to belonging ccw device
@@ -176,8 +224,8 @@ static int zfcp_ccw_notify(struct ccw_device *ccw_device, int event)
"ccnoti4", NULL);
break;
case CIO_BOXED:
- dev_warn(&adapter->ccw_device->dev,
- "The ccw device did not respond in time.\n");
+ dev_warn(&adapter->ccw_device->dev, "The FCP device "
+ "did not respond within the specified time\n");
zfcp_erp_adapter_shutdown(adapter, 0, "ccnoti5", NULL);
break;
}
@@ -199,14 +247,6 @@ static void zfcp_ccw_shutdown(struct ccw_device *cdev)
up(&zfcp_data.config_sema);
}
-static struct ccw_device_id zfcp_ccw_device_id[] = {
- { CCW_DEVICE_DEVTYPE(0x1731, 0x3, 0x1732, 0x3) },
- { CCW_DEVICE_DEVTYPE(0x1731, 0x3, 0x1732, 0x4) }, /* priv. */
- {},
-};
-
-MODULE_DEVICE_TABLE(ccw, zfcp_ccw_device_id);
-
static struct ccw_driver zfcp_ccw_driver = {
.owner = THIS_MODULE,
.name = "zfcp",
@@ -217,6 +257,9 @@ static struct ccw_driver zfcp_ccw_driver = {
.set_offline = zfcp_ccw_set_offline,
.notify = zfcp_ccw_notify,
.shutdown = zfcp_ccw_shutdown,
+ .freeze = zfcp_ccw_suspend,
+ .thaw = zfcp_ccw_activate,
+ .restore = zfcp_ccw_activate,
};
/**