svcrdma: Introduce infrastructure to support completion IDs (f7bd657b) · Commits · 戴 / test

include/linux/sunrpc/rpc_rdma_cid.h

0 → 100644

+24 −0

Original line number	Diff line number	Diff line
		/* SPDX-License-Identifier: GPL-2.0 */
		/*
		* * Copyright (c) 2020, Oracle and/or its affiliates.
		*/

		#ifndef RPC_RDMA_CID_H
		#define RPC_RDMA_CID_H

		/*
		* The rpc_rdma_cid struct records completion ID information. A
		* completion ID matches an incoming Send or Receive completion
		* to a Completion Queue and to a previous ib_post_*(). The ID
		* can then be displayed in an error message or recorded in a
		* trace record.
		*
		* This struct is shared between the server and client RPC/RDMA
		* transport implementations.
		*/
		struct rpc_rdma_cid {
		u32 ci_queue_id;
		int ci_completion_id;
		};

		#endif /* RPC_RDMA_CID_H */

+43 −0

Original line number	Diff line number	Diff line
		@@ -11,6 +11,7 @@
		#define _TRACE_RPCRDMA_H

		#include <linux/scatterlist.h>
		#include <linux/sunrpc/rpc_rdma_cid.h>
		#include <linux/tracepoint.h>
		#include <trace/events/rdma.h>

		@@ -18,6 +19,48 @@
		** Event classes
		**/

		DECLARE_EVENT_CLASS(rpcrdma_completion_class,
		TP_PROTO(
		const struct ib_wc *wc,
		const struct rpc_rdma_cid *cid
		),

		TP_ARGS(wc, cid),

		TP_STRUCT__entry(
		__field(u32, cq_id)
		__field(int, completion_id)
		__field(unsigned long, status)
		__field(unsigned int, vendor_err)
		),

		TP_fast_assign(
		__entry->cq_id = cid->ci_queue_id;
		__entry->completion_id = cid->ci_completion_id;
		__entry->status = wc->status;
		if (wc->status)
		__entry->vendor_err = wc->vendor_err;
		else
		__entry->vendor_err = 0;
		),

		TP_printk("cq.id=%u cid=%d status=%s (%lu/0x%x)",
		__entry->cq_id, __entry->completion_id,
		rdma_show_wc_status(__entry->status),
		__entry->status, __entry->vendor_err
		)
		);

		#define DEFINE_COMPLETION_EVENT(name) \
		DEFINE_EVENT(rpcrdma_completion_class, name, \
		TP_PROTO( \
		const struct ib_wc *wc, \
		const struct rpc_rdma_cid *cid \
		), \
		TP_ARGS(wc, cid))

		DEFINE_COMPLETION_EVENT(dummy);

		DECLARE_EVENT_CLASS(xprtrdma_reply_event,
		TP_PROTO(
		const struct rpcrdma_rep *rep