blktrace: pass zfcp driver data
This patch writes the channel and fabric latencies in nanoseconds per
request via blktrace for later analysis. The utilization of the inbound
and outbound adapter queue is also reported.
Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com>
Signed-off-by: Martin Peschke <mp3@de.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h
index 8a13071..9ce4c75 100644
--- a/drivers/s390/scsi/zfcp_def.h
+++ b/drivers/s390/scsi/zfcp_def.h
@@ -583,6 +583,8 @@
unsigned long long issued; /* request sent time (STCK) */
struct zfcp_unit *unit;
void (*handler)(struct zfcp_fsf_req *);
+ u16 qdio_outb_usage;/* usage of outbound queue */
+ u16 qdio_inb_usage; /* usage of inbound queue */
};
/* driver data */