[SCSI] zfcp: Trace all triggers of error recovery activity

This patch allows any recovery event to be traced back to an exact
cause, e.g. a particular request identified by an id (address).

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, 0 deletions

diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h
index 659ec739706a..aad75cfa1c60 100644
--- a/drivers/s390/scsi/zfcp_def.h
+++ b/drivers/s390/scsi/zfcp_def.h
@@ -295,18 +295,32 @@ struct zfcp_rec_dbf_record_target {
         u32 erp_count;
 } __attribute__ ((packed));
 
+struct zfcp_rec_dbf_record_trigger {
+        u8 want;
+        u8 need;
+        u32 as;
+        u32 ps;
+        u32 us;
+        u64 ref;
+        u64 action;
+        u64 wwpn;
+        u64 fcp_lun;
+} __attribute__ ((packed));
+
 struct zfcp_rec_dbf_record {
         u8 id;
         u8 id2;
         union {
                 struct zfcp_rec_dbf_record_thread thread;
                 struct zfcp_rec_dbf_record_target target;
+                struct zfcp_rec_dbf_record_trigger trigger;
         } u;
 } __attribute__ ((packed));
 
 enum {
         ZFCP_REC_DBF_ID_THREAD,
         ZFCP_REC_DBF_ID_TARGET,
+        ZFCP_REC_DBF_ID_TRIGGER,
 };
 
 struct zfcp_hba_dbf_record_response {