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| author | Martin Petermann <martin.petermann@de.ibm.com> | 2009-06-16 10:30:34 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2009-06-16 10:31:14 +0200 |
| commit | daa70fa960fb5625d762988cca7e4733573d90a3 (patch) | |
| tree | c697af091edb28975aa9bc8018d46088b5c6dcd0 /drivers/s390/scsi/zfcp_ccw.c | |
| parent | 88efc2c503e82072a19b531d54e02f22de14a132 (diff) | |
| download | lwn-daa70fa960fb5625d762988cca7e4733573d90a3.tar.gz lwn-daa70fa960fb5625d762988cca7e4733573d90a3.zip | |
[S390] pm: zfcp driver power management callbacks
Signed-off-by: Martin Petermann <martin.petermann@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/scsi/zfcp_ccw.c')
| -rw-r--r-- | drivers/s390/scsi/zfcp_ccw.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c index b2fe5cdbcaee..d9da5c42ccbe 100644 --- a/drivers/s390/scsi/zfcp_ccw.c +++ b/drivers/s390/scsi/zfcp_ccw.c @@ -13,6 +13,36 @@ #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) }, @@ -227,6 +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, }; /** |