diff options
| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2017-10-29 22:21:02 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-11-04 14:04:24 +0300 |
| commit | 03b81e66c78b076bfc127714ce6fd25655784600 (patch) | |
| tree | ccdf44cb823a28a6d68290f3b898ae023c22c574 /drivers/hv | |
| parent | 716fa52fb474a36ddd3cbc981108f93610c973ef (diff) | |
| download | linux-03b81e66c78b076bfc127714ce6fd25655784600.tar.xz | |
hyper-v: trace vmbus_onoffer()
Add tracepoint to CHANNELMSG_OFFERCHANNEL handler.
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_mgmt.c | 2 | ||||
| -rw-r--r-- | drivers/hv/hv_trace.h | 37 |
2 files changed, 39 insertions, 0 deletions
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c index 71d4d68488d4..7c11e17ad295 100644 --- a/drivers/hv/channel_mgmt.c +++ b/drivers/hv/channel_mgmt.c @@ -813,6 +813,8 @@ static void vmbus_onoffer(struct vmbus_channel_message_header *hdr) offer = (struct vmbus_channel_offer_channel *)hdr; + trace_vmbus_onoffer(offer); + /* Allocate the channel object and save this offer. */ newchannel = alloc_channel(); if (!newchannel) { diff --git a/drivers/hv/hv_trace.h b/drivers/hv/hv_trace.h index d432aba5df8a..488b873b563e 100644 --- a/drivers/hv/hv_trace.h +++ b/drivers/hv/hv_trace.h @@ -24,6 +24,43 @@ DEFINE_EVENT(vmbus_hdr_msg, vmbus_on_message, TP_ARGS(hdr) ); +TRACE_EVENT(vmbus_onoffer, + TP_PROTO(const struct vmbus_channel_offer_channel *offer), + TP_ARGS(offer), + TP_STRUCT__entry( + __field(u32, child_relid) + __field(u8, monitorid) + __field(u16, is_ddc_int) + __field(u32, connection_id) + __array(char, if_type, 16) + __array(char, if_instance, 16) + __field(u16, chn_flags) + __field(u16, mmio_mb) + __field(u16, sub_idx) + ), + TP_fast_assign(__entry->child_relid = offer->child_relid; + __entry->monitorid = offer->monitorid; + __entry->is_ddc_int = offer->is_dedicated_interrupt; + __entry->connection_id = offer->connection_id; + memcpy(__entry->if_type, + &offer->offer.if_type.b, 16); + memcpy(__entry->if_instance, + &offer->offer.if_instance.b, 16); + __entry->chn_flags = offer->offer.chn_flags; + __entry->mmio_mb = offer->offer.mmio_megabytes; + __entry->sub_idx = offer->offer.sub_channel_index; + ), + TP_printk("child_relid 0x%x, monitorid 0x%x, is_dedicated %d, " + "connection_id 0x%x, if_type %pUl, if_instance %pUl, " + "chn_flags 0x%x, mmio_megabytes %d, sub_channel_index %d", + __entry->child_relid, __entry->monitorid, + __entry->is_ddc_int, __entry->connection_id, + __entry->if_type, __entry->if_instance, + __entry->chn_flags, __entry->mmio_mb, + __entry->sub_idx + ) + ); + #undef TRACE_INCLUDE_PATH #define TRACE_INCLUDE_PATH . #undef TRACE_INCLUDE_FILE |