[SCSI] zfcp: Add traces for state changes.

This patch writes a trace record which provides information about state
changes for adapters, ports and units, e.g. target failure, targets becoming
online, targets being temporarily blocked due to pending recovery, targets
which have been recovered successfully etc.

Signed-off-by: Martin Peschke <mp3@de.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 14 insertions, 10 deletions

diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h
index f64951ba98c7..20ad6fde2e22 100644
--- a/drivers/s390/scsi/zfcp_ext.h
+++ b/drivers/s390/scsi/zfcp_ext.h
@@ -131,22 +131,23 @@ extern int zfcp_scsi_command_sync(struct zfcp_unit *, struct scsi_cmnd *, int);
 extern struct fc_function_template zfcp_transport_functions;
 
 /******************************** ERP ****************************************/
-extern void zfcp_erp_modify_adapter_status(struct zfcp_adapter *, u32, int);
+extern void zfcp_erp_modify_adapter_status(struct zfcp_adapter *, u8, u64, u32,
+                                           int);
 extern int  zfcp_erp_adapter_reopen(struct zfcp_adapter *, int);
 extern int  zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int);
-extern void zfcp_erp_adapter_failed(struct zfcp_adapter *);
+extern void zfcp_erp_adapter_failed(struct zfcp_adapter *, u8, u64);
 
-extern void zfcp_erp_modify_port_status(struct zfcp_port *, u32, int);
+extern void zfcp_erp_modify_port_status(struct zfcp_port *, u8, u64, u32, int);
 extern int  zfcp_erp_port_reopen(struct zfcp_port *, int);
 extern int  zfcp_erp_port_shutdown(struct zfcp_port *, int);
 extern int  zfcp_erp_port_forced_reopen(struct zfcp_port *, int);
-extern void zfcp_erp_port_failed(struct zfcp_port *);
+extern void zfcp_erp_port_failed(struct zfcp_port *, u8, u64);
 extern int  zfcp_erp_port_reopen_all(struct zfcp_adapter *, int);
 
-extern void zfcp_erp_modify_unit_status(struct zfcp_unit *, u32, int);
+extern void zfcp_erp_modify_unit_status(struct zfcp_unit *, u8, u64, u32, int);
 extern int  zfcp_erp_unit_reopen(struct zfcp_unit *, int);
 extern int  zfcp_erp_unit_shutdown(struct zfcp_unit *, int);
-extern void zfcp_erp_unit_failed(struct zfcp_unit *);
+extern void zfcp_erp_unit_failed(struct zfcp_unit *, u8, u64);
 
 extern int  zfcp_erp_thread_setup(struct zfcp_adapter *);
 extern int  zfcp_erp_thread_kill(struct zfcp_adapter *);
@@ -155,10 +156,10 @@ extern void zfcp_erp_async_handler(struct zfcp_erp_action *, unsigned long);
 
 extern int  zfcp_test_link(struct zfcp_port *);
 
-extern void zfcp_erp_port_boxed(struct zfcp_port *);
-extern void zfcp_erp_unit_boxed(struct zfcp_unit *);
-extern void zfcp_erp_port_access_denied(struct zfcp_port *);
-extern void zfcp_erp_unit_access_denied(struct zfcp_unit *);
+extern void zfcp_erp_port_boxed(struct zfcp_port *, u8 id, u64 ref);
+extern void zfcp_erp_unit_boxed(struct zfcp_unit *, u8 id, u64 ref);
+extern void zfcp_erp_port_access_denied(struct zfcp_port *, u8 id, u64 ref);
+extern void zfcp_erp_unit_access_denied(struct zfcp_unit *, u8 id, u64 ref);
 extern void zfcp_erp_adapter_access_changed(struct zfcp_adapter *);
 extern void zfcp_erp_port_access_changed(struct zfcp_port *);
 extern void zfcp_erp_unit_access_changed(struct zfcp_unit *);
@@ -166,6 +167,9 @@ extern void zfcp_erp_unit_access_changed(struct zfcp_unit *);
 /******************************** AUX ****************************************/
 extern void zfcp_rec_dbf_event_thread(u8 id, struct zfcp_adapter *adapter,
                                       int lock);
+extern void zfcp_rec_dbf_event_adapter(u8 id, u64 ref, struct zfcp_adapter *);
+extern void zfcp_rec_dbf_event_port(u8 id, u64 ref, struct zfcp_port *port);
+extern void zfcp_rec_dbf_event_unit(u8 id, u64 ref, struct zfcp_unit *unit);
 
 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 *,