include/zpios-internal.h

   1 /*
   2  *  ZPIOS is a heavily modified version of the original PIOS test code.
   3  *  It is designed to have the test code running in the Linux kernel
   4  *  against ZFS while still being flexibly controlled from user space.
   5  *
   6  *  Copyright (C) 2008-2010 Lawrence Livermore National Security, LLC.
   7  *  Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
   8  *  Written by Brian Behlendorf <behlendorf1@llnl.gov>.
   9  *  LLNL-CODE-403049
  10  *
  11  *  Original PIOS Test Code
  12  *  Copyright (C) 2004 Cluster File Systems, Inc.
  13  *  Written by Peter Braam <braam@clusterfs.com>
  14  *             Atul Vidwansa <atul@clusterfs.com>
  15  *             Milind Dumbare <milind@clusterfs.com>
  16  *
  17  *  This file is part of ZFS on Linux.
  18  *  For details, see <http://zfsonlinux.org/>.
  19  *
  20  *  ZPIOS is free software; you can redistribute it and/or modify it
  21  *  under the terms of the GNU General Public License as published by the
  22  *  Free Software Foundation; either version 2 of the License, or (at your
  23  *  option) any later version.
  24  *
  25  *  ZPIOS is distributed in the hope that it will be useful, but WITHOUT
  26  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  27  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  28  *  for more details.
  29  *
  30  *  You should have received a copy of the GNU General Public License along
  31  *  with ZPIOS.  If not, see <http://www.gnu.org/licenses/>.
  32  *
  33  *  Copyright (c) 2015, Intel Corporation.
  34  */
  35
  36 #ifndef _ZPIOS_INTERNAL_H
  37 #define _ZPIOS_INTERNAL_H
  38
  39 #include "zpios-ctl.h"
  40
  41 #define OBJ_SIZE        64
  42
  43 struct run_args;
  44
  45 typedef struct dmu_obj {
  46         objset_t *os;
  47         uint64_t obj;
  48 } dmu_obj_t;
  49
  50 /* thread doing the IO data */
  51 typedef struct thread_data {
  52         struct run_args *run_args;
  53         int thread_no;
  54         int rc;
  55         zpios_stats_t stats;
  56         kmutex_t lock;
  57 } thread_data_t;
  58
  59 /* region for IO data */
  60 typedef struct zpios_region {
  61         __u64 wr_offset;
  62         __u64 rd_offset;
  63         __u64 init_offset;
  64         __u64 max_offset;
  65         dmu_obj_t obj;
  66         zpios_stats_t stats;
  67         kmutex_t lock;
  68 } zpios_region_t;
  69
  70 /* arguments for one run */
  71 typedef struct run_args {
  72         /* Config args */
  73         int id;
  74         char pool[ZPIOS_NAME_SIZE];
  75         __u64 chunk_size;
  76         __u32 thread_count;
  77         __u32 region_count;
  78         __u64 region_size;
  79         __u64 offset;
  80         __u32 region_noise;
  81         __u32 chunk_noise;
  82         __u32 thread_delay;
  83         __u32 flags;
  84         __u32 block_size;
  85         char pre[ZPIOS_PATH_SIZE];
  86         char post[ZPIOS_PATH_SIZE];
  87         char log[ZPIOS_PATH_SIZE];
  88
  89         /* Control data */
  90         objset_t *os;
  91         wait_queue_head_t waitq;
  92         volatile uint64_t threads_done;
  93         kmutex_t lock_work;
  94         kmutex_t lock_ctl;
  95         __u32 region_next;
  96
  97         /* Results data */
  98         struct file *file;
  99         zpios_stats_t stats;
 100
 101         thread_data_t **threads;
 102         zpios_region_t regions[0]; /* Must be last element */
 103 } run_args_t;
 104
 105 #define ZPIOS_INFO_BUFFER_SIZE          65536
 106 #define ZPIOS_INFO_BUFFER_REDZONE       1024
 107
 108 typedef struct zpios_info {
 109         spinlock_t info_lock;
 110         int info_size;
 111         char *info_buffer;
 112         char *info_head;        /* Internal kernel use only */
 113 } zpios_info_t;
 114
 115 #endif /* _ZPIOS_INTERNAL_H */