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Commit 821bf1de authored by Ira Weiny's avatar Ira Weiny Committed by Jason Gunthorpe
Browse files

IB/MAD: Add recv path trace point 



Trace received MAD details.

Reviewed-by: default avatar"Ruhl, Michael J" <michael.j.ruhl@intel.com>
Reviewed-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: default avatarIra Weiny <ira.weiny@intel.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@mellanox.com>
parent 4d60cad5

drivers/infiniband/core/mad.c

+3 −0
Original line number Diff line number Diff line
@@ -2305,6 +2305,9 @@ static void ib_mad_recv_done(struct ib_cq *cq, struct ib_wc *wc) 
	if (!validate_mad((const struct ib_mad_hdr *)recv->mad, qp_info, opa))

		goto out;



	trace_ib_mad_recv_done_handler(qp_info, wc,

				       (struct ib_mad_hdr *)recv->mad);



	mad_size = recv->mad_size;

	response = alloc_mad_private(mad_size, GFP_KERNEL);

	if (!response)

include/trace/events/ib_mad.h

+67 −0
Original line number Diff line number Diff line
@@ -181,6 +181,73 @@ TRACE_EVENT(ib_mad_send_done_handler, 
	)

);



TRACE_EVENT(ib_mad_recv_done_handler,

	TP_PROTO(struct ib_mad_qp_info *qp_info, struct ib_wc *wc,

		 struct ib_mad_hdr *mad_hdr),

	TP_ARGS(qp_info, wc, mad_hdr),



	TP_STRUCT__entry(

		__field(u8,             base_version)

		__field(u8,             mgmt_class)

		__field(u8,             class_version)

		__field(u8,             port_num)

		__field(u32,            qp_num)

		__field(u16,            status)

		__field(u16,            class_specific)

		__field(u32,            length)

		__field(u64,            tid)

		__field(u8,             method)

		__field(u8,             sl)

		__field(u16,            attr_id)

		__field(u32,            attr_mod)

		__field(u16,            src_qp)

		__field(u16,            wc_status)

		__field(u32,            slid)

		__field(u32,            dev_index)

		__field(u16,            pkey)

	),



	TP_fast_assign(

		__entry->dev_index = qp_info->port_priv->device->index;

		__entry->port_num = qp_info->port_priv->port_num;

		__entry->qp_num = qp_info->qp->qp_num;

		__entry->length = wc->byte_len;

		__entry->base_version = mad_hdr->base_version;

		__entry->mgmt_class = mad_hdr->mgmt_class;

		__entry->class_version = mad_hdr->class_version;

		__entry->method = mad_hdr->method;

		__entry->status = mad_hdr->status;

		__entry->class_specific = mad_hdr->class_specific;

		__entry->tid = mad_hdr->tid;

		__entry->attr_id = mad_hdr->attr_id;

		__entry->attr_mod = mad_hdr->attr_mod;

		__entry->slid = wc->slid;

		__entry->src_qp = wc->src_qp;

		__entry->sl = wc->sl;

		ib_query_pkey(qp_info->port_priv->device,

			      qp_info->port_priv->port_num,

			      wc->pkey_index, &__entry->pkey);

		__entry->wc_status = wc->status;

	),



	TP_printk("%d:%d QP%d : RECV WC Status %d : length %d : hdr : " \

		  "base_ver 0x%02x class 0x%02x class_ver 0x%02x " \

		  "method 0x%02x status 0x%04x class_specific 0x%04x " \

		  "tid 0x%016llx attr_id 0x%04x attr_mod 0x%08x " \

		  "slid 0x%08x src QP%d, sl %d pkey 0x%04x",

		__entry->dev_index, __entry->port_num, __entry->qp_num,

		__entry->wc_status,

		__entry->length,

		__entry->base_version, __entry->mgmt_class,

		__entry->class_version, __entry->method,

		be16_to_cpu(__entry->status),

		be16_to_cpu(__entry->class_specific),

		be64_to_cpu(__entry->tid), be16_to_cpu(__entry->attr_id),

		be32_to_cpu(__entry->attr_mod),

		__entry->slid, __entry->src_qp, __entry->sl, __entry->pkey

	)

);





#endif /* _TRACE_IB_MAD_H */