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| author | Peter Oberparleiter <oberpar@linux.ibm.com> | 2024-04-10 11:46:20 +0200 |
|---|---|---|
| committer | Alexander Gordeev <agordeev@linux.ibm.com> | 2024-04-12 16:13:03 +0200 |
| commit | 6f76592ef63a1ffd8949f0828d24da7913ddb6d8 (patch) | |
| tree | 710d3932271a56949ac7f20dece75c55edf3d3b4 /drivers/s390/cio/device_ops.c | |
| parent | 2d8527f2f911fab84aec04df4788c0c23af3df48 (diff) | |
| download | linux-stable-6f76592ef63a1ffd8949f0828d24da7913ddb6d8.tar.gz linux-stable-6f76592ef63a1ffd8949f0828d24da7913ddb6d8.tar.bz2 linux-stable-6f76592ef63a1ffd8949f0828d24da7913ddb6d8.zip | |
s390/cio: log fake IRB events
Add traces when queueing and delivering fake IRBs. These are significant
events that might have an impact on device driver processing and are
therefore relevant for problem analysis.
Reviewed-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Diffstat (limited to 'drivers/s390/cio/device_ops.c')
| -rw-r--r-- | drivers/s390/cio/device_ops.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/s390/cio/device_ops.c b/drivers/s390/cio/device_ops.c index 40c97f873075..acd6790dba4d 100644 --- a/drivers/s390/cio/device_ops.c +++ b/drivers/s390/cio/device_ops.c @@ -208,6 +208,10 @@ int ccw_device_start_timeout_key(struct ccw_device *cdev, struct ccw1 *cpa, if (!cdev->private->flags.fake_irb) { cdev->private->flags.fake_irb = FAKE_CMD_IRB; cdev->private->intparm = intparm; + CIO_MSG_EVENT(2, "fakeirb: queue device 0.%x.%04x intparm %lx type=%d\n", + cdev->private->dev_id.ssid, + cdev->private->dev_id.devno, intparm, + cdev->private->flags.fake_irb); return 0; } else /* There's already a fake I/O around. */ @@ -551,6 +555,10 @@ int ccw_device_tm_start_timeout_key(struct ccw_device *cdev, struct tcw *tcw, if (!cdev->private->flags.fake_irb) { cdev->private->flags.fake_irb = FAKE_TM_IRB; cdev->private->intparm = intparm; + CIO_MSG_EVENT(2, "fakeirb: queue device 0.%x.%04x intparm %lx type=%d\n", + cdev->private->dev_id.ssid, + cdev->private->dev_id.devno, intparm, + cdev->private->flags.fake_irb); return 0; } else /* There's already a fake I/O around. */ |