138 lines
4.4 KiB
C
138 lines
4.4 KiB
C
/*
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* This file is part of the ZFS Linux port.
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*
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* Copyright (c) 2008 Lawrence Livermore National Security, LLC.
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* Produced at Lawrence Livermore National Laboratory
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* Written by:
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* Brian Behlendorf <behlendorf1@llnl.gov>,
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* Herb Wartens <wartens2@llnl.gov>,
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* Jim Garlick <garlick@llnl.gov>
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* LLNL-CODE-403049
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*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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#ifndef _KPIOS_INTERNAL_H
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#define _KPIOS_INTERNAL_H
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#include "zpios-ctl.h"
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#define OBJ_SIZE 64
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struct run_args;
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typedef struct dmu_obj {
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objset_t *os;
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uint64_t obj;
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} dmu_obj_t;
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/* thread doing the IO data */
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typedef struct thread_data {
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struct run_args *run_args;
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int thread_no;
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int rc;
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kpios_stats_t stats;
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kmutex_t lock;
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} thread_data_t;
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/* region for IO data */
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typedef struct kpios_region {
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__u64 wr_offset;
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__u64 rd_offset;
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__u64 init_offset;
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__u64 max_offset;
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dmu_obj_t obj;
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kpios_stats_t stats;
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kmutex_t lock;
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} kpios_region_t;
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/* arguments for one run */
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typedef struct run_args {
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/* Config args */
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int id;
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char pool[KPIOS_NAME_SIZE];
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__u64 chunk_size;
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__u32 thread_count;
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__u32 region_count;
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__u64 region_size;
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__u64 offset;
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__u32 region_noise;
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__u32 chunk_noise;
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__u32 thread_delay;
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__u32 flags;
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char pre[KPIOS_PATH_SIZE];
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char post[KPIOS_PATH_SIZE];
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char log[KPIOS_PATH_SIZE];
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/* Control data */
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objset_t *os;
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wait_queue_head_t waitq;
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volatile uint64_t threads_done;
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kmutex_t lock_work;
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kmutex_t lock_ctl;
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__u32 region_next;
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/* Results data */
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struct file *file;
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kpios_stats_t stats;
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thread_data_t **threads;
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kpios_region_t regions[0]; /* Must be last element */
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} run_args_t;
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#define KPIOS_INFO_BUFFER_SIZE 65536
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#define KPIOS_INFO_BUFFER_REDZONE 1024
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typedef struct kpios_info {
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spinlock_t info_lock;
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int info_size;
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char *info_buffer;
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char *info_head; /* Internal kernel use only */
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} kpios_info_t;
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#define kpios_print(file, format, args...) \
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({ kpios_info_t *_info_ = (kpios_info_t *)file->private_data; \
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int _rc_; \
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\
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ASSERT(_info_); \
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ASSERT(_info_->info_buffer); \
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\
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spin_lock(&_info_->info_lock); \
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\
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/* Don't allow the kernel to start a write in the red zone */ \
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if ((int)(_info_->info_head - _info_->info_buffer) > \
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(_info_->info_size - KPIOS_INFO_BUFFER_REDZONE)) { \
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_rc_ = -EOVERFLOW; \
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} else { \
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_rc_ = sprintf(_info_->info_head, format, args); \
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if (_rc_ >= 0) \
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_info_->info_head += _rc_; \
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} \
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\
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spin_unlock(&_info_->info_lock); \
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_rc_; \
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})
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#define kpios_vprint(file, test, format, args...) \
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kpios_print(file, "%*s: " format, KPIOS_NAME_SIZE, test, args)
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#endif /* _KPIOS_INTERNAL_H */
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