[SCSI] zfcp: Add trace records for recovery thread and its queues

This patch writes trace records which provide information about the
operation of the zfcp error recovery thread and the queues it works
on.

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, 12 insertions, 0 deletions

diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h
index f29bee5..332c83e 100644
--- a/drivers/s390/scsi/zfcp_def.h
+++ b/drivers/s390/scsi/zfcp_def.h
@@ -279,13 +279,25 @@ struct zfcp_erp_dbf_record {
 	u8 dummy[16];
 } __attribute__ ((packed));
 
+struct zfcp_rec_dbf_record_thread {
+	u32 sema;
+	u32 total;
+	u32 ready;
+	u32 running;
+} __attribute__ ((packed));
+
 struct zfcp_rec_dbf_record {
 	u8 id;
 	u8 id2;
 	union {
+		struct zfcp_rec_dbf_record_thread thread;
 	} u;
 } __attribute__ ((packed));
 
+enum {
+	ZFCP_REC_DBF_ID_THREAD,
+};
+
 struct zfcp_hba_dbf_record_response {
 	u32 fsf_command;
 	u64 fsf_reqid;