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path: root/drivers/s390/scsi/zfcp_dbf.c
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Diffstat (limited to 'drivers/s390/scsi/zfcp_dbf.c')
-rw-r--r--drivers/s390/scsi/zfcp_dbf.c70
1 files changed, 36 insertions, 34 deletions
diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c
index f9bd094c6e63..96d1462e0bf5 100644
--- a/drivers/s390/scsi/zfcp_dbf.c
+++ b/drivers/s390/scsi/zfcp_dbf.c
@@ -377,26 +377,37 @@ void zfcp_dbf_scsi(char *tag, struct scsi_cmnd *sc, struct zfcp_fsf_req *fsf)
}
}
- debug_event(adapter->dbf->scsi, 1, rec, sizeof(*rec));
+ debug_event(dbf->scsi, 1, rec, sizeof(*rec));
spin_unlock_irqrestore(&dbf->scsi_lock, flags);
}
-static debug_info_t *zfcp_dbf_reg(const char *name, int level,
- struct debug_view *view, int size)
+static debug_info_t *zfcp_dbf_reg(const char *name, int size, int rec_size)
{
struct debug_info *d;
- d = debug_register(name, dbfsize, level, size);
+ d = debug_register(name, size, 1, rec_size);
if (!d)
return NULL;
debug_register_view(d, &debug_hex_ascii_view);
- debug_register_view(d, view);
- debug_set_level(d, level);
+ debug_set_level(d, 3);
return d;
}
+static void zfcp_dbf_unregister(struct zfcp_dbf *dbf)
+{
+ if (!dbf)
+ return;
+
+ debug_unregister(dbf->scsi);
+ debug_unregister(dbf->san);
+ debug_unregister(dbf->hba);
+ debug_unregister(dbf->pay);
+ debug_unregister(dbf->rec);
+ kfree(dbf);
+}
+
/**
* zfcp_adapter_debug_register - registers debug feature for an adapter
* @adapter: pointer to adapter for which debug features should be registered
@@ -404,15 +415,13 @@ static debug_info_t *zfcp_dbf_reg(const char *name, int level,
*/
int zfcp_dbf_adapter_register(struct zfcp_adapter *adapter)
{
- char dbf_name[DEBUG_MAX_NAME_LEN];
+ char name[DEBUG_MAX_NAME_LEN];
struct zfcp_dbf *dbf;
dbf = kzalloc(sizeof(struct zfcp_dbf), GFP_KERNEL);
if (!dbf)
return -ENOMEM;
- dbf->adapter = adapter;
-
spin_lock_init(&dbf->pay_lock);
spin_lock_init(&dbf->hba_lock);
spin_lock_init(&dbf->san_lock);
@@ -420,59 +429,52 @@ int zfcp_dbf_adapter_register(struct zfcp_adapter *adapter)
spin_lock_init(&dbf->rec_lock);
/* debug feature area which records recovery activity */
- sprintf(dbf_name, "zfcp_%s_rec", dev_name(&adapter->ccw_device->dev));
- dbf->rec = zfcp_dbf_reg(dbf_name, 3, NULL, sizeof(struct zfcp_dbf_rec));
+ sprintf(name, "zfcp_%s_rec", dev_name(&adapter->ccw_device->dev));
+ dbf->rec = zfcp_dbf_reg(name, dbfsize, sizeof(struct zfcp_dbf_rec));
if (!dbf->rec)
goto err_out;
/* debug feature area which records HBA (FSF and QDIO) conditions */
- sprintf(dbf_name, "zfcp_%s_hba", dev_name(&adapter->ccw_device->dev));
- dbf->hba = zfcp_dbf_reg(dbf_name, 3, NULL, sizeof(struct zfcp_dbf_hba));
+ sprintf(name, "zfcp_%s_hba", dev_name(&adapter->ccw_device->dev));
+ dbf->hba = zfcp_dbf_reg(name, dbfsize, sizeof(struct zfcp_dbf_hba));
if (!dbf->hba)
goto err_out;
/* debug feature area which records payload info */
- sprintf(dbf_name, "zfcp_%s_pay", dev_name(&adapter->ccw_device->dev));
- dbf->pay = zfcp_dbf_reg(dbf_name, 3, NULL,
- sizeof(struct zfcp_dbf_pay));
+ sprintf(name, "zfcp_%s_pay", dev_name(&adapter->ccw_device->dev));
+ dbf->pay = zfcp_dbf_reg(name, dbfsize * 2, sizeof(struct zfcp_dbf_pay));
if (!dbf->pay)
goto err_out;
/* debug feature area which records SAN command failures and recovery */
- sprintf(dbf_name, "zfcp_%s_san", dev_name(&adapter->ccw_device->dev));
- dbf->san = zfcp_dbf_reg(dbf_name, 3, NULL, sizeof(struct zfcp_dbf_san));
+ sprintf(name, "zfcp_%s_san", dev_name(&adapter->ccw_device->dev));
+ dbf->san = zfcp_dbf_reg(name, dbfsize, sizeof(struct zfcp_dbf_san));
if (!dbf->san)
goto err_out;
/* debug feature area which records SCSI command failures and recovery */
- sprintf(dbf_name, "zfcp_%s_scsi", dev_name(&adapter->ccw_device->dev));
- dbf->scsi = zfcp_dbf_reg(dbf_name, 3, NULL,
- sizeof(struct zfcp_dbf_scsi));
+ sprintf(name, "zfcp_%s_scsi", dev_name(&adapter->ccw_device->dev));
+ dbf->scsi = zfcp_dbf_reg(name, dbfsize, sizeof(struct zfcp_dbf_scsi));
if (!dbf->scsi)
goto err_out;
adapter->dbf = dbf;
- return 0;
+ return 0;
err_out:
- zfcp_dbf_adapter_unregister(dbf);
+ zfcp_dbf_unregister(dbf);
return -ENOMEM;
}
/**
* zfcp_adapter_debug_unregister - unregisters debug feature for an adapter
- * @dbf: pointer to dbf for which debug features should be unregistered
+ * @adapter: pointer to adapter for which debug features should be unregistered
*/
-void zfcp_dbf_adapter_unregister(struct zfcp_dbf *dbf)
+void zfcp_dbf_adapter_unregister(struct zfcp_adapter *adapter)
{
- if (!dbf)
- return;
- debug_unregister(dbf->scsi);
- debug_unregister(dbf->san);
- debug_unregister(dbf->hba);
- debug_unregister(dbf->pay);
- debug_unregister(dbf->rec);
- dbf->adapter->dbf = NULL;
- kfree(dbf);
+ struct zfcp_dbf *dbf = adapter->dbf;
+
+ adapter->dbf = NULL;
+ zfcp_dbf_unregister(dbf);
}