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Diffstat (limited to 'module/zpios/include/zpios-internal.h')
| -rw-r--r-- | module/zpios/include/zpios-internal.h | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/module/zpios/include/zpios-internal.h b/module/zpios/include/zpios-internal.h new file mode 100644 index 000000000..c9b6e0092 --- /dev/null +++ b/module/zpios/include/zpios-internal.h @@ -0,0 +1,138 @@ +/*****************************************************************************\ + * ZPIOS is a heavily modified version of the original PIOS test code. + * It is designed to have the test code running in the Linux kernel + * against ZFS while still being flexibly controled from user space. + * + * Copyright (C) 2008-2010 Lawrence Livermore National Security, LLC. + * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER). + * Written by Brian Behlendorf <[email protected]>. + * LLNL-CODE-403049 + * + * Original PIOS Test Code + * Copyright (C) 2004 Cluster File Systems, Inc. + * Written by Peter Braam <[email protected]> + * Atul Vidwansa <[email protected]> + * Milind Dumbare <[email protected]> + * + * This file is part of ZFS on Linux. + * For details, see <http://github.com/behlendorf/zfs/>. + * + * ZPIOS is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * ZPIOS is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * You should have received a copy of the GNU General Public License along + * with ZPIOS. If not, see <http://www.gnu.org/licenses/>. +\*****************************************************************************/ + +#ifndef _ZPIOS_INTERNAL_H +#define _ZPIOS_INTERNAL_H + +#include "zpios-ctl.h" + +#define OBJ_SIZE 64 + +struct run_args; + +typedef struct dmu_obj { + objset_t *os; + uint64_t obj; +} dmu_obj_t; + +/* thread doing the IO data */ +typedef struct thread_data { + struct run_args *run_args; + int thread_no; + int rc; + zpios_stats_t stats; + kmutex_t lock; +} thread_data_t; + +/* region for IO data */ +typedef struct zpios_region { + __u64 wr_offset; + __u64 rd_offset; + __u64 init_offset; + __u64 max_offset; + dmu_obj_t obj; + zpios_stats_t stats; + kmutex_t lock; +} zpios_region_t; + +/* arguments for one run */ +typedef struct run_args { + /* Config args */ + int id; + char pool[ZPIOS_NAME_SIZE]; + __u64 chunk_size; + __u32 thread_count; + __u32 region_count; + __u64 region_size; + __u64 offset; + __u32 region_noise; + __u32 chunk_noise; + __u32 thread_delay; + __u32 flags; + char pre[ZPIOS_PATH_SIZE]; + char post[ZPIOS_PATH_SIZE]; + char log[ZPIOS_PATH_SIZE]; + + /* Control data */ + objset_t *os; + wait_queue_head_t waitq; + volatile uint64_t threads_done; + kmutex_t lock_work; + kmutex_t lock_ctl; + __u32 region_next; + + /* Results data */ + struct file *file; + zpios_stats_t stats; + + thread_data_t **threads; + zpios_region_t regions[0]; /* Must be last element */ +} run_args_t; + +#define ZPIOS_INFO_BUFFER_SIZE 65536 +#define ZPIOS_INFO_BUFFER_REDZONE 1024 + +typedef struct zpios_info { + spinlock_t info_lock; + int info_size; + char *info_buffer; + char *info_head; /* Internal kernel use only */ +} zpios_info_t; + +#define zpios_print(file, format, args...) \ +({ zpios_info_t *_info_ = (zpios_info_t *)file->private_data; \ + int _rc_; \ + \ + ASSERT(_info_); \ + ASSERT(_info_->info_buffer); \ + \ + spin_lock(&_info_->info_lock); \ + \ + /* Don't allow the kernel to start a write in the red zone */ \ + if ((int)(_info_->info_head - _info_->info_buffer) > \ + (_info_->info_size - ZPIOS_INFO_BUFFER_REDZONE)) { \ + _rc_ = -EOVERFLOW; \ + } else { \ + _rc_ = sprintf(_info_->info_head, format, args); \ + if (_rc_ >= 0) \ + _info_->info_head += _rc_; \ + } \ + \ + spin_unlock(&_info_->info_lock); \ + _rc_; \ +}) + +#define zpios_vprint(file, test, format, args...) \ + zpios_print(file, "%*s: " format, ZPIOS_NAME_SIZE, test, args) + +#endif /* _ZPIOS_INTERNAL_H */ |