* [RFC][PATCH v1 14/15] perf: export tracepoint events via sysfs: scsi
@ 2010-07-22 11:18 Lin Ming
0 siblings, 0 replies; only message in thread
From: Lin Ming @ 2010-07-22 11:18 UTC (permalink / raw)
To: Ingo Molnar, James E.J. Bottomley
Cc: Robert Richter, Corey Ashford, Johannes Berg, Peter Zijlstra,
Greg KH, Frederic Weisbecker, Paul Mundt, eranian,
Gary.Mohr@Bull.com, arjan, Zhang, Yanmin, Paul Mackerras,
David S. Miller, Russell King, Arnaldo Carvalho de Melo,
Will Deacon, Maynard Johnson, Carl Love, Kay Sievers, lkml,
Thomas Gleixner, Steven Rostedt
scsi tracepoint events are exported like below,
/sys/devices/pci0000:00/0000:00:1c.4/0000:03:00.0/host4/scsi_host/host4/events
|-- scsi_dispatch_cmd_done
| |-- config
| `-- type
|-- scsi_dispatch_cmd_error
| |-- config
| `-- type
|-- scsi_dispatch_cmd_start
| |-- config
| `-- type
|-- scsi_dispatch_cmd_timeout
| |-- config
| `-- type
`-- scsi_eh_wakeup
|-- config
`-- type
/sys/devices/pci0000:00/0000:00:1c.4/0000:03:00.0/host5/scsi_host/host5/events
/sys/devices/pci0000:00/0000:00:1c.4/0000:03:00.0/host6/scsi_host/host6/events
/sys/devices/pci0000:00/0000:00:1c.4/0000:03:00.0/host7/scsi_host/host7/events
/sys/devices/pci0000:00/0000:00:1c.4/0000:03:00.0/host8/scsi_host/host8/events
/sys/devices/pci0000:00/0000:00:1f.1/host9/scsi_host/host9/events
/sys/devices/pci0000:00/0000:00:1f.1/host10/scsi_host/host10/events
/sys/devices/pci0000:00/0000:00:1f.2/host0/scsi_host/host0/events
/sys/devices/pci0000:00/0000:00:1f.2/host1/scsi_host/host1/events
/sys/devices/pci0000:00/0000:00:1f.2/host2/scsi_host/host2/events
/sys/devices/pci0000:00/0000:00:1f.2/host3/scsi_host/host3/events
---
drivers/scsi/hosts.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index 6660fa9..7e256a6 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -30,6 +30,7 @@
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/completion.h>
+#include <linux/perf_event.h>
#include <linux/transport_class.h>
#include <linux/platform_device.h>
@@ -231,6 +232,8 @@ int scsi_add_host_with_dma(struct Scsi_Host *shost, struct device *dev,
if (error)
goto out_del_gendev;
+ perf_sys_add_tp(&shost->shost_dev.kobj, "scsi");
+
get_device(&shost->shost_gendev);
if (shost->transportt->host_size) {
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2010-07-22 11:18 [RFC][PATCH v1 14/15] perf: export tracepoint events via sysfs: scsi Lin Ming
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