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81 lines
2.8 KiB
Diff
81 lines
2.8 KiB
Diff
From 001a396a211849a927e9a48a31538c4ddf1f9f18 Mon Sep 17 00:00:00 2001
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From: Vitaly Kuznetsov <vkuznets@redhat.com>
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Date: Sun, 29 Oct 2017 12:21:02 -0700
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Subject: [PATCH 04/21] hyper-v: trace vmbus_onoffer()
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Add tracepoint to CHANNELMSG_OFFERCHANNEL handler.
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Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
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Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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(cherry picked from commit 03b81e66c78b076bfc127714ce6fd25655784600)
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---
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drivers/hv/channel_mgmt.c | 2 ++
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drivers/hv/hv_trace.h | 37 +++++++++++++++++++++++++++++++++++++
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2 files changed, 39 insertions(+)
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diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
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index 2087402b8d01..28dae42c2b55 100644
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--- a/drivers/hv/channel_mgmt.c
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+++ b/drivers/hv/channel_mgmt.c
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@@ -875,6 +875,8 @@ static void vmbus_onoffer(struct vmbus_channel_message_header *hdr)
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offer = (struct vmbus_channel_offer_channel *)hdr;
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+ trace_vmbus_onoffer(offer);
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+
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/* Allocate the channel object and save this offer. */
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newchannel = alloc_channel();
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if (!newchannel) {
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diff --git a/drivers/hv/hv_trace.h b/drivers/hv/hv_trace.h
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index d432aba5df8a..488b873b563e 100644
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--- a/drivers/hv/hv_trace.h
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+++ b/drivers/hv/hv_trace.h
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@@ -24,6 +24,43 @@ DEFINE_EVENT(vmbus_hdr_msg, vmbus_on_message,
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TP_ARGS(hdr)
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);
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+TRACE_EVENT(vmbus_onoffer,
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+ TP_PROTO(const struct vmbus_channel_offer_channel *offer),
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+ TP_ARGS(offer),
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+ TP_STRUCT__entry(
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+ __field(u32, child_relid)
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+ __field(u8, monitorid)
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+ __field(u16, is_ddc_int)
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+ __field(u32, connection_id)
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+ __array(char, if_type, 16)
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+ __array(char, if_instance, 16)
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+ __field(u16, chn_flags)
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+ __field(u16, mmio_mb)
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+ __field(u16, sub_idx)
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+ ),
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+ TP_fast_assign(__entry->child_relid = offer->child_relid;
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+ __entry->monitorid = offer->monitorid;
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+ __entry->is_ddc_int = offer->is_dedicated_interrupt;
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+ __entry->connection_id = offer->connection_id;
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+ memcpy(__entry->if_type,
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+ &offer->offer.if_type.b, 16);
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+ memcpy(__entry->if_instance,
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+ &offer->offer.if_instance.b, 16);
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+ __entry->chn_flags = offer->offer.chn_flags;
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+ __entry->mmio_mb = offer->offer.mmio_megabytes;
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+ __entry->sub_idx = offer->offer.sub_channel_index;
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+ ),
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+ TP_printk("child_relid 0x%x, monitorid 0x%x, is_dedicated %d, "
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+ "connection_id 0x%x, if_type %pUl, if_instance %pUl, "
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+ "chn_flags 0x%x, mmio_megabytes %d, sub_channel_index %d",
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+ __entry->child_relid, __entry->monitorid,
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+ __entry->is_ddc_int, __entry->connection_id,
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+ __entry->if_type, __entry->if_instance,
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+ __entry->chn_flags, __entry->mmio_mb,
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+ __entry->sub_idx
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+ )
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+ );
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+
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#undef TRACE_INCLUDE_PATH
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#define TRACE_INCLUDE_PATH .
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#undef TRACE_INCLUDE_FILE
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--
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2.21.0
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