Quelle  rnbd-srv-trace.h   Sprache: C

/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * RDMA Network Block Driver
 *
 * Copyright (c) 2022 1&1 IONOS SE. All rights reserved.
 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM rnbd_srv

#if !defined(_TRACE_RNBD_SRV_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_RNBD_SRV_H

#include <linux/tracepoint.h>

struct rnbd_srv_session;
struct rtrs_srv_op;

DECLARE_EVENT_CLASS(rnbd_srv_link_class,
 TP_PROTO(struct rnbd_srv_session *srv),

 TP_ARGS(srv),

 TP_STRUCT__entry(
  __field(int, qdepth)
  __string(sessname, srv->sessname)
 ),

 TP_fast_assign(
  __entry->qdepth = srv->queue_depth;
  __assign_str(sessname);
 ),

 TP_printk("sessname: %s qdepth: %d",
     __get_str(sessname),
     __entry->qdepth
 )
);

#define DEFINE_LINK_EVENT(name) \
DEFINE_EVENT(rnbd_srv_link_class, name, \
 TP_PROTO(struct rnbd_srv_session *srv), \
 TP_ARGS(srv))

DEFINE_LINK_EVENT(create_sess);
DEFINE_LINK_EVENT(destroy_sess);

TRACE_DEFINE_ENUM(RNBD_OP_READ);
TRACE_DEFINE_ENUM(RNBD_OP_WRITE);
TRACE_DEFINE_ENUM(RNBD_OP_FLUSH);
TRACE_DEFINE_ENUM(RNBD_OP_DISCARD);
TRACE_DEFINE_ENUM(RNBD_OP_SECURE_ERASE);
TRACE_DEFINE_ENUM(RNBD_F_SYNC);
TRACE_DEFINE_ENUM(RNBD_F_FUA);

#define show_rnbd_rw_flags(x) \
 __print_flags(x, "|", \
  { RNBD_OP_READ,  "READ" }, \
  { RNBD_OP_WRITE, "WRITE" }, \
  { RNBD_OP_FLUSH, "FLUSH" }, \
  { RNBD_OP_DISCARD, "DISCARD" }, \
  { RNBD_OP_SECURE_ERASE, "SECURE_ERASE" }, \
  { RNBD_F_SYNC,  "SYNC" }, \
  { RNBD_F_FUA,  "FUA" })

TRACE_EVENT(process_rdma,
 TP_PROTO(struct rnbd_srv_session *srv,
   const struct rnbd_msg_io *msg,
   struct rtrs_srv_op *id,
   u32 datalen,
   size_t usrlen),

 TP_ARGS(srv, msg, id, datalen, usrlen),

 TP_STRUCT__entry(
  __string(sessname, srv->sessname)
  __field(u8, dir)
  __field(u8, ver)
  __field(u32, device_id)
  __field(u64, sector)
  __field(u32, flags)
  __field(u32, bi_size)
  __field(u16, ioprio)
  __field(u32, datalen)
  __field(size_t, usrlen)
 ),

 TP_fast_assign(
  __assign_str(sessname);
  __entry->dir = id->dir;
  __entry->ver = srv->ver;
  __entry->device_id = le32_to_cpu(msg->device_id);
  __entry->sector = le64_to_cpu(msg->sector);
  __entry->bi_size = le32_to_cpu(msg->bi_size);
  __entry->flags = le32_to_cpu(msg->rw);
  __entry->ioprio = le16_to_cpu(msg->prio);
  __entry->datalen = datalen;
  __entry->usrlen = usrlen;
 ),

 TP_printk("I/O req: sess: %s, type: %s, ver: %d, devid: %u, sector: %llu, bsize: %u, flags: %s, ioprio: %d, datalen: %u, usrlen: %zu",
     __get_str(sessname),
     __print_symbolic(__entry->dir,
    { READ,  "READ" },
    { WRITE, "WRITE" }),
     __entry->ver,
     __entry->device_id,
     __entry->sector,
     __entry->bi_size,
     show_rnbd_rw_flags(__entry->flags),
     __entry->ioprio,
     __entry->datalen,
     __entry->usrlen
 )
);

TRACE_EVENT(process_msg_sess_info,
 TP_PROTO(struct rnbd_srv_session *srv,
   const struct rnbd_msg_sess_info *msg),

 TP_ARGS(srv, msg),

 TP_STRUCT__entry(
  __field(u8, proto_ver)
  __field(u8, clt_ver)
  __field(u8, srv_ver)
  __string(sessname, srv->sessname)
 ),

 TP_fast_assign(
  __entry->proto_ver = srv->ver;
  __entry->clt_ver = msg->ver;
  __entry->srv_ver = RNBD_PROTO_VER_MAJOR;
  __assign_str(sessname);
 ),

 TP_printk("Session %s using proto-ver %d (clt-ver: %d, srv-ver: %d)",
     __get_str(sessname),
     __entry->proto_ver,
     __entry->clt_ver,
     __entry->srv_ver
 )
);

TRACE_DEFINE_ENUM(RNBD_ACCESS_RO);
TRACE_DEFINE_ENUM(RNBD_ACCESS_RW);
TRACE_DEFINE_ENUM(RNBD_ACCESS_MIGRATION);

#define show_rnbd_access_mode(x) \
 __print_symbolic(x, \
  { RNBD_ACCESS_RO,  "RO" }, \
  { RNBD_ACCESS_RW,  "RW" }, \
  { RNBD_ACCESS_MIGRATION, "MIGRATION" })

TRACE_EVENT(process_msg_open,
 TP_PROTO(struct rnbd_srv_session *srv,
   const struct rnbd_msg_open *msg),

 TP_ARGS(srv, msg),

 TP_STRUCT__entry(
  __field(u8, access_mode)
  __string(sessname, srv->sessname)
  __string(dev_name, msg->dev_name)
 ),

 TP_fast_assign(
  __entry->access_mode = msg->access_mode;
  __assign_str(sessname);
  __assign_str(dev_name);
 ),

 TP_printk("Open message received: session='%s' path='%s' access_mode=%s",
     __get_str(sessname),
     __get_str(dev_name),
     show_rnbd_access_mode(__entry->access_mode)
 )
);

TRACE_EVENT(process_msg_close,
 TP_PROTO(struct rnbd_srv_session *srv,
   const struct rnbd_msg_close *msg),

 TP_ARGS(srv, msg),

 TP_STRUCT__entry(
  __field(u32, device_id)
  __string(sessname, srv->sessname)
 ),

 TP_fast_assign(
  __entry->device_id = le32_to_cpu(msg->device_id);
  __assign_str(sessname);
 ),

 TP_printk("Close message received: session='%s' device id='%d'",
     __get_str(sessname),
     __entry->device_id
 )
);

#endif /* _TRACE_RNBD_SRV_H */

#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#define TRACE_INCLUDE_FILE rnbd-srv-trace
#include <trace/define_trace.h>