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Diffstat (limited to 'module/zpios/include/zpios-ctl.h')
| -rw-r--r-- | module/zpios/include/zpios-ctl.h | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/module/zpios/include/zpios-ctl.h b/module/zpios/include/zpios-ctl.h new file mode 100644 index 000000000..234e96c11 --- /dev/null +++ b/module/zpios/include/zpios-ctl.h @@ -0,0 +1,198 @@ +/*****************************************************************************\ + * 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_CTL_H +#define _ZPIOS_CTL_H + +/* Contains shared definitions which both the userspace + * and kernelspace portions of zpios must agree on. + */ +#ifndef _KERNEL +#include <stdint.h> +#endif + +#define ZPIOS_MAJOR 232 /* XXX - Arbitrary */ +#define ZPIOS_MINORS 1 +#define ZPIOS_NAME "zpios" +#define ZPIOS_DEV "/dev/zpios" + +#define DMU_IO 0x01 + +#define DMU_WRITE 0x0001 +#define DMU_READ 0x0002 +#define DMU_VERIFY 0x0004 +#define DMU_REMOVE 0x0008 +#define DMU_FPP 0x0010 +#define DMU_WRITE_ZC 0x0020 /* Incompatible w/DMU_VERIFY */ +#define DMU_READ_ZC 0x0040 /* Incompatible w/DMU_VERIFY */ +#define DMU_WRITE_NOWAIT 0x0080 +#define DMU_READ_NOPF 0x0100 + +#define ZPIOS_NAME_SIZE 16 +#define ZPIOS_PATH_SIZE 128 + +#define PHASE_PRE_RUN "pre-run" +#define PHASE_PRE_CREATE "pre-create" +#define PHASE_PRE_WRITE "pre-write" +#define PHASE_PRE_READ "pre-read" +#define PHASE_PRE_REMOVE "pre-remove" +#define PHASE_POST_RUN "post-run" +#define PHASE_POST_CREATE "post-create" +#define PHASE_POST_WRITE "post-write" +#define PHASE_POST_READ "post-read" +#define PHASE_POST_REMOVE "post-remove" + +#define ZPIOS_CFG_MAGIC 0x87237190U +typedef struct zpios_cfg { + uint32_t cfg_magic; /* Unique magic */ + int32_t cfg_cmd; /* Config command */ + int32_t cfg_arg1; /* Config command arg 1 */ + int32_t cfg_rc1; /* Config response 1 */ +} zpios_cfg_t; + +typedef struct zpios_timespec { + uint32_t ts_sec; + uint32_t ts_nsec; +} zpios_timespec_t; + +typedef struct zpios_time { + zpios_timespec_t start; + zpios_timespec_t stop; + zpios_timespec_t delta; +} zpios_time_t; + +typedef struct zpios_stats { + zpios_time_t total_time; + zpios_time_t cr_time; + zpios_time_t rm_time; + zpios_time_t wr_time; + zpios_time_t rd_time; + uint64_t wr_data; + uint64_t wr_chunks; + uint64_t rd_data; + uint64_t rd_chunks; +} zpios_stats_t; + +#define ZPIOS_CMD_MAGIC 0x49715385U +typedef struct zpios_cmd { + uint32_t cmd_magic; /* Unique magic */ + uint32_t cmd_id; /* Run ID */ + char cmd_pool[ZPIOS_NAME_SIZE]; /* Pool name */ + uint64_t cmd_chunk_size; /* Chunk size */ + uint32_t cmd_thread_count; /* Thread count */ + uint32_t cmd_region_count; /* Region count */ + uint64_t cmd_region_size; /* Region size */ + uint64_t cmd_offset; /* Region offset */ + uint32_t cmd_region_noise; /* Region noise */ + uint32_t cmd_chunk_noise; /* Chunk noise */ + uint32_t cmd_thread_delay; /* Thread delay */ + uint32_t cmd_flags; /* Test flags */ + char cmd_pre[ZPIOS_PATH_SIZE]; /* Pre-exec hook */ + char cmd_post[ZPIOS_PATH_SIZE]; /* Post-exec hook */ + char cmd_log[ZPIOS_PATH_SIZE]; /* Requested log dir */ + uint64_t cmd_data_size; /* Opaque data size */ + char cmd_data_str[0]; /* Opaque data region */ +} zpios_cmd_t; + +/* Valid ioctls */ +#define ZPIOS_CFG _IOWR('f', 101, zpios_cfg_t) +#define ZPIOS_CMD _IOWR('f', 102, zpios_cmd_t) + +/* Valid configuration commands */ +#define ZPIOS_CFG_BUFFER_CLEAR 0x001 /* Clear text buffer */ +#define ZPIOS_CFG_BUFFER_SIZE 0x002 /* Resize text buffer */ + +#ifndef NSEC_PER_SEC +#define NSEC_PER_SEC 1000000000L +#endif + +static inline +void zpios_timespec_normalize(zpios_timespec_t *ts, uint32_t sec, uint32_t nsec) +{ + while (nsec >= NSEC_PER_SEC) { + nsec -= NSEC_PER_SEC; + sec++; + } + while (nsec < 0) { + nsec += NSEC_PER_SEC; + sec--; + } + ts->ts_sec = sec; + ts->ts_nsec = nsec; +} + +static inline +zpios_timespec_t zpios_timespec_add(zpios_timespec_t lhs, zpios_timespec_t rhs) +{ + zpios_timespec_t ts_delta; + zpios_timespec_normalize(&ts_delta, lhs.ts_sec + rhs.ts_sec, + lhs.ts_nsec + rhs.ts_nsec); + return ts_delta; +} + +static inline +zpios_timespec_t zpios_timespec_sub(zpios_timespec_t lhs, zpios_timespec_t rhs) +{ + zpios_timespec_t ts_delta; + zpios_timespec_normalize(&ts_delta, lhs.ts_sec - rhs.ts_sec, + lhs.ts_nsec - rhs.ts_nsec); + return ts_delta; +} + +#ifdef _KERNEL + +static inline +zpios_timespec_t zpios_timespec_now(void) +{ + zpios_timespec_t zts_now; + struct timespec ts_now; + + ts_now = current_kernel_time(); + zts_now.ts_sec = ts_now.tv_sec; + zts_now.ts_nsec = ts_now.tv_nsec; + + return zts_now; +} + +#else + +static inline +double zpios_timespec_to_double(zpios_timespec_t ts) +{ + return ((double)(ts.ts_sec) + + ((double)(ts.ts_nsec) / (double)(NSEC_PER_SEC))); +} + +#endif /* _KERNEL */ + +#endif /* _ZPIOS_CTL_H */ |