diff options
Diffstat (limited to 'drivers/s390/scsi/zfcp_ccw.c')
| -rw-r--r-- | drivers/s390/scsi/zfcp_ccw.c | 63 |
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, }; /** |