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| author |   Dennis Dalessandro <dennis.dalessandro@intel.com> | 2016-01-22 13:00:28 -0800 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2016-03-10 20:37:24 -0500 |
| commit | 81ba39a82e8a9ed4eba3e967a09e60a9d00d8de4 (patch) | |
| tree | 395a492452e33638294344a00c207d8eacd734ef /drivers/infiniband/sw/rdmavt/vt.c | |
| parent | IB/rdmavt: Add post send to rdmavt (diff) | |
| download | linux-dev-81ba39a82e8a9ed4eba3e967a09e60a9d00d8de4.tar.xz linux-dev-81ba39a82e8a9ed4eba3e967a09e60a9d00d8de4.zip | |
IB/rdmavt: Add support for tracing events
This patch adds support of tracing events using the kernels built-in event
tracing infrastructure. This can be extended to provide a wide range of
trace and debug capabilities which have a negligible impact on performance
when enabled. These should be preferred over the use of the rvt_pr*
functions.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/sw/rdmavt/vt.c')
| -rw-r--r-- | drivers/infiniband/sw/rdmavt/vt.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/infiniband/sw/rdmavt/vt.c b/drivers/infiniband/sw/rdmavt/vt.c index 136cc212caa5..7f56a4266cc4 100644 --- a/drivers/infiniband/sw/rdmavt/vt.c +++ b/drivers/infiniband/sw/rdmavt/vt.c @@ -48,6 +48,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include "vt.h" +#include "trace.h" MODULE_LICENSE("Dual BSD/GPL"); MODULE_DESCRIPTION("RDMA Verbs Transport Library"); @@ -259,7 +260,8 @@ int rvt_register_device(struct rvt_dev_info *rdi) return -EINVAL; } - /* Once we get past here we can use the rvt_pr macros */ + /* Once we get past here we can use rvt_pr macros and tracepoints */ + trace_rvt_dbg(rdi, "Driver attempting registration"); rvt_mmap_init(rdi); /* Dev Ops */ @@ -370,6 +372,7 @@ EXPORT_SYMBOL(rvt_register_device); void rvt_unregister_device(struct rvt_dev_info *rdi) { + trace_rvt_dbg(rdi, "Driver is unregistering."); if (!rdi) return; |