Add linux zpios support

Linux kernel implementation of PIOS test app.

Signed-off-by: Brian Behlendorf <[email protected]>

cmd/Makefile.am

@@ -1 +1 @@
-SUBDIRS = zfs zpool zpool_id zpool_layout zdb zinject ztest
+SUBDIRS = zfs zpool zpool_id zpool_layout zdb zinject ztest zpios

cmd/zpios/.gitignore

@@ -0,0 +1 @@
+/zpios

cmd/zpios/Makefile.am

@@ -0,0 +1,12 @@
+include $(top_srcdir)/config/Rules.am
+
+DEFAULT_INCLUDES += \
+	-I${top_srcdir}/module/zpios/include
+
+sbin_PROGRAMS = zpios
+
+zpios_SOURCES = \
+	$(top_srcdir)/cmd/zpios/zpios_main.c \
+	$(top_srcdir)/cmd/zpios/zpios_util.c \
+	$(top_srcdir)/cmd/zpios/zpios.h
+

cmd/zpios/zpios.h

@@ -0,0 +1,121 @@
+/*****************************************************************************\
+ *  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_H
+#define _ZPIOS_H
+
+#include <zpios-ctl.h>
+
+#define VERSION_SIZE		64
+
+/* Regular expressions */
+#define REGEX_NUMBERS		"^[0-9]*[0-9]$"
+#define REGEX_NUMBERS_COMMA	"^([0-9]+,)*[0-9]+$"
+#define REGEX_SIZE		"^[0-9][0-9]*[kmgt]$"
+#define REGEX_SIZE_COMMA	"^([0-9][0-9]*[kmgt]+,)*[0-9][0-9]*[kmgt]$"
+
+/* Flags for low, high, incr */
+#define FLAG_SET		0x01
+#define FLAG_LOW		0x02
+#define FLAG_HIGH		0x04
+#define FLAG_INCR		0x08
+
+#define TRUE			1
+#define FALSE			0
+
+#define KB			(1024)
+#define MB			(KB * 1024)
+#define GB			(MB * 1024)
+#define TB			(GB * 1024)
+
+#define KMGT_SIZE		16
+
+/* All offsets, sizes and counts can be passed to the application in
+ * multiple ways.
+ * 1. a value (stored in val[0], val_count will be 1)
+ * 2. a comma separated list of values (stored in val[], using val_count)
+ * 3. a range and block sizes, low, high, factor (val_count must be 0)
+ */
+typedef struct pios_range_repeat {
+	uint64_t val[32];        /* Comma sep array, or low, high, inc */
+	uint64_t val_count;      /* Num of values */
+	uint64_t val_low;
+	uint64_t val_high;
+	uint64_t val_inc_perc;
+	uint64_t next_val;       /* Used for multiple runs in get_next() */
+} range_repeat_t;
+
+typedef struct cmd_args {
+	range_repeat_t T;           /* Thread count */
+	range_repeat_t N;           /* Region count */
+	range_repeat_t O;           /* Offset count */
+	range_repeat_t C;           /* Chunksize */
+	range_repeat_t S;           /* Regionsize */
+
+	const char *pool;           /* Pool */
+	const char *name;           /* Name */
+	uint32_t flags;             /* Flags */
+	uint32_t io_type;           /* DMUIO only */
+	uint32_t verbose;           /* Verbose */
+	uint32_t human_readable;    /* Human readable output */
+
+	uint64_t regionnoise;       /* Region noise */
+	uint64_t chunknoise;        /* Chunk noise */
+	uint64_t thread_delay;      /* Thread delay */
+
+	char pre[ZPIOS_PATH_SIZE];  /* Pre-exec hook */
+	char post[ZPIOS_PATH_SIZE]; /* Post-exec hook */
+	char log[ZPIOS_PATH_SIZE];  /* Requested log dir */
+
+	/* Control */
+	int current_id;
+	uint64_t current_T;
+	uint64_t current_N;
+	uint64_t current_C;
+	uint64_t current_S;
+	uint64_t current_O;
+
+	uint32_t rc;
+} cmd_args_t;
+
+int set_count(char *pattern1, char *pattern2, range_repeat_t *range,
+	      char *optarg, uint32_t *flags, char *arg);
+int set_lhi(char *pattern, range_repeat_t *range, char *optarg,
+	    int flag, uint32_t *flag_thread, char *arg);
+int set_noise(uint64_t *noise, char *optarg, char *arg);
+int set_load_params(cmd_args_t *args, char *optarg);
+int check_mutual_exclusive_command_lines(uint32_t flag, char *arg);
+void print_stats_header(cmd_args_t *args);
+void print_stats(cmd_args_t *args, zpios_cmd_t *cmd);
+
+#endif /* _ZPIOS_H */