From: Eric Farman <farman@linux.ibm.com>
To: linux-s390@vger.kernel.org, kvm@vger.kernel.org
Cc: Cornelia Huck <cohuck@redhat.com>,
Halil Pasic <pasic@linux.ibm.com>,
Jason Herne <jjherne@linux.ibm.com>,
Jared Rossi <jrossi@linux.ibm.com>,
Eric Farman <farman@linux.ibm.com>
Subject: [PATCH v4 8/8] vfio-ccw: Add trace for CRW event
Date: Tue, 5 May 2020 14:27:45 +0200 [thread overview]
Message-ID: <20200505122745.53208-9-farman@linux.ibm.com> (raw)
In-Reply-To: <20200505122745.53208-1-farman@linux.ibm.com>
Since CRW events are (should be) rare, let's put a trace
in that routine too.
Signed-off-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
---
Notes:
v3->v4:
- Added Conny's r-b
drivers/s390/cio/vfio_ccw_drv.c | 1 +
drivers/s390/cio/vfio_ccw_trace.c | 1 +
drivers/s390/cio/vfio_ccw_trace.h | 30 ++++++++++++++++++++++++++++++
3 files changed, 32 insertions(+)
diff --git a/drivers/s390/cio/vfio_ccw_drv.c b/drivers/s390/cio/vfio_ccw_drv.c
index 9144360851ed..8c625b530035 100644
--- a/drivers/s390/cio/vfio_ccw_drv.c
+++ b/drivers/s390/cio/vfio_ccw_drv.c
@@ -336,6 +336,7 @@ static int vfio_ccw_chp_event(struct subchannel *sch,
if (!private || !mask)
return 0;
+ trace_vfio_ccw_chp_event(private->sch->schid, mask, event);
VFIO_CCW_MSG_EVENT(2, "%pUl (%x.%x.%04x): mask=0x%x event=%d\n",
mdev_uuid(private->mdev), sch->schid.cssid,
sch->schid.ssid, sch->schid.sch_no,
diff --git a/drivers/s390/cio/vfio_ccw_trace.c b/drivers/s390/cio/vfio_ccw_trace.c
index 8c671d2519f6..4a0205905afc 100644
--- a/drivers/s390/cio/vfio_ccw_trace.c
+++ b/drivers/s390/cio/vfio_ccw_trace.c
@@ -9,6 +9,7 @@
#define CREATE_TRACE_POINTS
#include "vfio_ccw_trace.h"
+EXPORT_TRACEPOINT_SYMBOL(vfio_ccw_chp_event);
EXPORT_TRACEPOINT_SYMBOL(vfio_ccw_fsm_async_request);
EXPORT_TRACEPOINT_SYMBOL(vfio_ccw_fsm_event);
EXPORT_TRACEPOINT_SYMBOL(vfio_ccw_fsm_io_request);
diff --git a/drivers/s390/cio/vfio_ccw_trace.h b/drivers/s390/cio/vfio_ccw_trace.h
index f5d31887d413..62fb30598d47 100644
--- a/drivers/s390/cio/vfio_ccw_trace.h
+++ b/drivers/s390/cio/vfio_ccw_trace.h
@@ -17,6 +17,36 @@
#include <linux/tracepoint.h>
+TRACE_EVENT(vfio_ccw_chp_event,
+ TP_PROTO(struct subchannel_id schid,
+ int mask,
+ int event),
+ TP_ARGS(schid, mask, event),
+
+ TP_STRUCT__entry(
+ __field(u8, cssid)
+ __field(u8, ssid)
+ __field(u16, sch_no)
+ __field(int, mask)
+ __field(int, event)
+ ),
+
+ TP_fast_assign(
+ __entry->cssid = schid.cssid;
+ __entry->ssid = schid.ssid;
+ __entry->sch_no = schid.sch_no;
+ __entry->mask = mask;
+ __entry->event = event;
+ ),
+
+ TP_printk("schid=%x.%x.%04x mask=0x%x event=%d",
+ __entry->cssid,
+ __entry->ssid,
+ __entry->sch_no,
+ __entry->mask,
+ __entry->event)
+);
+
TRACE_EVENT(vfio_ccw_fsm_async_request,
TP_PROTO(struct subchannel_id schid,
int command,
--
2.17.1
next prev parent reply other threads:[~2020-05-05 12:27 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-05 12:27 [PATCH v4 0/8] s390x/vfio-ccw: Channel Path Handling [KVM] Eric Farman
2020-05-05 12:27 ` [PATCH v4 1/8] vfio-ccw: Introduce new helper functions to free/destroy regions Eric Farman
2020-05-05 12:27 ` [PATCH v4 2/8] vfio-ccw: Register a chp_event callback for vfio-ccw Eric Farman
2020-05-06 13:18 ` Cornelia Huck
2020-05-05 12:27 ` [PATCH v4 3/8] vfio-ccw: Refactor the unregister of the async regions Eric Farman
2020-05-05 12:27 ` [PATCH v4 4/8] vfio-ccw: Introduce a new schib region Eric Farman
2020-05-05 12:27 ` [PATCH v4 5/8] vfio-ccw: Refactor IRQ handlers Eric Farman
2020-05-05 12:27 ` [PATCH v4 6/8] vfio-ccw: Introduce a new CRW region Eric Farman
2020-05-06 13:24 ` Cornelia Huck
2020-05-05 12:27 ` [PATCH v4 7/8] vfio-ccw: Wire up the CRW irq and " Eric Farman
2020-05-06 13:52 ` Cornelia Huck
2020-05-05 12:27 ` Eric Farman [this message]
2020-05-05 12:56 ` [PATCH v4 0/8] s390x/vfio-ccw: Channel Path Handling [KVM] Cornelia Huck
2020-05-05 13:00 ` Eric Farman
2020-05-06 13:59 ` Cornelia Huck
2020-05-18 10:05 ` Cornelia Huck
2020-05-18 10:14 ` Eric Farman
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