diff options
| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2017-10-29 22:21:09 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-11-04 14:04:25 +0300 |
| commit | 9202d771ca37514bfbc2c3a8fdcb018f40a6bd8a (patch) | |
| tree | 0fd1a356684bac6ca061ca1cdc6da227ba264313 /drivers/hv | |
| parent | d6706e63367a9c783974db4b94cf8980d31c4cb2 (diff) | |
| download | linux-9202d771ca37514bfbc2c3a8fdcb018f40a6bd8a.tar.xz | |
hyper-v: trace vmbus_open()
Add tracepoint to CHANNELMSG_OPENCHANNEL sender.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hv')
| -rw-r--r-- | drivers/hv/channel.c | 2 | ||||
| -rw-r--r-- | drivers/hv/hv_trace.h | 27 |
2 files changed, 29 insertions, 0 deletions
diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c index a406beb10dd0..739b3fe1e0fb 100644 --- a/drivers/hv/channel.c +++ b/drivers/hv/channel.c @@ -185,6 +185,8 @@ int vmbus_open(struct vmbus_channel *newchannel, u32 send_ringbuffer_size, ret = vmbus_post_msg(open_msg, sizeof(struct vmbus_channel_open_channel), true); + trace_vmbus_open(open_msg, ret); + if (ret != 0) { err = ret; goto error_clean_msglist; diff --git a/drivers/hv/hv_trace.h b/drivers/hv/hv_trace.h index 566ac0f2fe56..38fedb803bd8 100644 --- a/drivers/hv/hv_trace.h +++ b/drivers/hv/hv_trace.h @@ -130,6 +130,33 @@ TRACE_EVENT(vmbus_request_offers, TP_printk("sending ret %d", __entry->ret) ); +TRACE_EVENT(vmbus_open, + TP_PROTO(const struct vmbus_channel_open_channel *msg, int ret), + TP_ARGS(msg, ret), + TP_STRUCT__entry( + __field(u32, child_relid) + __field(u32, openid) + __field(u32, gpadlhandle) + __field(u32, target_vp) + __field(u32, offset) + __field(int, ret) + ), + TP_fast_assign( + __entry->child_relid = msg->child_relid; + __entry->openid = msg->openid; + __entry->gpadlhandle = msg->ringbuffer_gpadlhandle; + __entry->target_vp = msg->target_vp; + __entry->offset = msg->downstream_ringbuffer_pageoffset; + __entry->ret = ret; + ), + TP_printk("sending child_relid 0x%x, openid %d, " + "gpadlhandle 0x%x, target_vp 0x%x, offset 0x%x, ret %d", + __entry->child_relid, __entry->openid, + __entry->gpadlhandle, __entry->target_vp, + __entry->offset, __entry->ret + ) + ); + #undef TRACE_INCLUDE_PATH #define TRACE_INCLUDE_PATH . #undef TRACE_INCLUDE_FILE |