[SCSI] zfcp: enhancement of zfcp debug features

Debug features (DBFs) els_dbf, cmd_dbf and abt_dbf were removed and
san_dbf, hba_dbf and scsi_dbf were introduced. The erp_dbf did not
change.
The new traces improve debugging of problems with zfcp, scsi-stack,
multipath and hardware in the SAN. san_dbf traces things like ELS and
CT commands, hba_dbf saves HBA specific information of requests, and
scsi_dbf saves FCP and SCSI specific information of requests. Common
to all new DBFs is that they provide a so called structured view. This
significantly improves readability of the traces.

Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 21 insertions, 5 deletions

diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h
index c400e3b9de97..104b7423fd4d 100644
--- a/drivers/s390/scsi/zfcp_ext.h
+++ b/drivers/s390/scsi/zfcp_ext.h
@@ -181,9 +181,25 @@ extern void zfcp_erp_port_access_changed(struct zfcp_port *);
 extern void zfcp_erp_unit_access_changed(struct zfcp_unit *);
 
 /******************************** AUX ****************************************/
-extern void zfcp_cmd_dbf_event_fsf(const char *, struct zfcp_fsf_req *,
-                                   void *, int);
-extern void zfcp_cmd_dbf_event_scsi(const char *, struct scsi_cmnd *);
-extern void zfcp_in_els_dbf_event(struct zfcp_adapter *, const char *,
-                                  struct fsf_status_read_buffer *, int);
+extern void zfcp_hba_dbf_event_fsf_response(struct zfcp_fsf_req *);
+extern void zfcp_hba_dbf_event_fsf_unsol(const char *, struct zfcp_adapter *,
+                                         struct fsf_status_read_buffer *);
+extern void zfcp_hba_dbf_event_qdio(struct zfcp_adapter *,
+                                    unsigned int, unsigned int, unsigned int,
+                                    int, int);
+
+extern void zfcp_san_dbf_event_ct_request(struct zfcp_fsf_req *);
+extern void zfcp_san_dbf_event_ct_response(struct zfcp_fsf_req *);
+extern void zfcp_san_dbf_event_els_request(struct zfcp_fsf_req *);
+extern void zfcp_san_dbf_event_els_response(struct zfcp_fsf_req *);
+extern void zfcp_san_dbf_event_incoming_els(struct zfcp_fsf_req *);
+
+extern void zfcp_scsi_dbf_event_result(const char *, int, struct zfcp_adapter *,
+                                       struct scsi_cmnd *);
+extern void zfcp_scsi_dbf_event_abort(const char *, struct zfcp_adapter *,
+                                      struct scsi_cmnd *,
+                                      struct zfcp_fsf_req *);
+extern void zfcp_scsi_dbf_event_devreset(const char *, u8, struct zfcp_unit *,
+                                         struct scsi_cmnd *);
+
 #endif  /* ZFCP_EXT_H */