drivers/s390/cio/vfio_ccw_trace.h

   1 /* SPDX-License-Identifier: GPL-2.0
   2  * Tracepoints for vfio_ccw driver
   3  *
   4  * Copyright IBM Corp. 2018
   5  *
   6  * Author(s): Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
   7  *            Halil Pasic <pasic@linux.vnet.ibm.com>
   8  */
   9
  10 #undef TRACE_SYSTEM
  11 #define TRACE_SYSTEM vfio_ccw
  12
  13 #if !defined(_VFIO_CCW_TRACE_) || defined(TRACE_HEADER_MULTI_READ)
  14 #define _VFIO_CCW_TRACE_
  15
  16 #include <linux/tracepoint.h>
  17
  18 TRACE_EVENT(vfio_ccw_io_fctl,
  19         TP_PROTO(int fctl, struct subchannel_id schid, int errno, char *errstr),
  20         TP_ARGS(fctl, schid, errno, errstr),
  21
  22         TP_STRUCT__entry(
  23                 __field(int, fctl)
  24                 __field_struct(struct subchannel_id, schid)
  25                 __field(int, errno)
  26                 __field(char*, errstr)
  27         ),
  28
  29         TP_fast_assign(
  30                 __entry->fctl = fctl;
  31                 __entry->schid = schid;
  32                 __entry->errno = errno;
  33                 __entry->errstr = errstr;
  34         ),
  35
  36         TP_printk("schid=%x.%x.%04x fctl=%x errno=%d info=%s",
  37                   __entry->schid.cssid,
  38                   __entry->schid.ssid,
  39                   __entry->schid.sch_no,
  40                   __entry->fctl,
  41                   __entry->errno,
  42                   __entry->errstr)
  43 );
  44
  45 #endif /* _VFIO_CCW_TRACE_ */
  46
  47 /* This part must be outside protection */
  48
  49 #undef TRACE_INCLUDE_PATH
  50 #define TRACE_INCLUDE_PATH .
  51 #undef TRACE_INCLUDE_FILE
  52 #define TRACE_INCLUDE_FILE vfio_ccw_trace
  53
  54 #include <trace/define_trace.h>