--- /dev/null
+/*****************************************************************************\
+ * 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 <behlendorf1@llnl.gov>.
+ * LLNL-CODE-403049
+ *
+ * Original PIOS Test Code
+ * Copyright (C) 2004 Cluster File Systems, Inc.
+ * Written by Peter Braam <braam@clusterfs.com>
+ * Atul Vidwansa <atul@clusterfs.com>
+ * Milind Dumbare <milind@clusterfs.com>
+ *
+ * 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 */
git://git.camperquake.de / zfs.git / blobdiff