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1 | e3aff4f6 | aliguori | /*
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2 | e3aff4f6 | aliguori | * Command line utility to exercise the QEMU I/O path.
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3 | e3aff4f6 | aliguori | *
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4 | e3aff4f6 | aliguori | * Copyright (C) 2009 Red Hat, Inc.
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5 | e3aff4f6 | aliguori | * Copyright (c) 2003-2005 Silicon Graphics, Inc.
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6 | e3aff4f6 | aliguori | *
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7 | e3aff4f6 | aliguori | * This work is licensed under the terms of the GNU GPL, version 2 or later.
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8 | e3aff4f6 | aliguori | * See the COPYING file in the top-level directory.
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9 | e3aff4f6 | aliguori | */
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10 | c32d766a | Stefan Weil | #include <sys/time.h> |
11 | e3aff4f6 | aliguori | #include <sys/types.h> |
12 | e3aff4f6 | aliguori | #include <stdarg.h> |
13 | e3aff4f6 | aliguori | #include <stdio.h> |
14 | e3aff4f6 | aliguori | #include <getopt.h> |
15 | c32d766a | Stefan Weil | #include <libgen.h> |
16 | e3aff4f6 | aliguori | |
17 | e3aff4f6 | aliguori | #include "qemu-common.h" |
18 | e3aff4f6 | aliguori | #include "block_int.h" |
19 | e3aff4f6 | aliguori | #include "cmd.h" |
20 | e3aff4f6 | aliguori | |
21 | e3aff4f6 | aliguori | #define VERSION "0.0.1" |
22 | e3aff4f6 | aliguori | |
23 | 43642b38 | Devin Nakamura | #define CMD_NOFILE_OK 0x01 |
24 | e3aff4f6 | aliguori | |
25 | e3aff4f6 | aliguori | char *progname;
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26 | e3aff4f6 | aliguori | static BlockDriverState *bs;
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27 | e3aff4f6 | aliguori | |
28 | e3aff4f6 | aliguori | static int misalign; |
29 | e3aff4f6 | aliguori | |
30 | e3aff4f6 | aliguori | /*
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31 | cf070d7e | Christoph Hellwig | * Parse the pattern argument to various sub-commands.
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32 | cf070d7e | Christoph Hellwig | *
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33 | cf070d7e | Christoph Hellwig | * Because the pattern is used as an argument to memset it must evaluate
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34 | cf070d7e | Christoph Hellwig | * to an unsigned integer that fits into a single byte.
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35 | cf070d7e | Christoph Hellwig | */
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36 | cf070d7e | Christoph Hellwig | static int parse_pattern(const char *arg) |
37 | cf070d7e | Christoph Hellwig | { |
38 | 43642b38 | Devin Nakamura | char *endptr = NULL; |
39 | 43642b38 | Devin Nakamura | long pattern;
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40 | cf070d7e | Christoph Hellwig | |
41 | 43642b38 | Devin Nakamura | pattern = strtol(arg, &endptr, 0);
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42 | 43642b38 | Devin Nakamura | if (pattern < 0 || pattern > UCHAR_MAX || *endptr != '\0') { |
43 | 43642b38 | Devin Nakamura | printf("%s is not a valid pattern byte\n", arg);
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44 | 43642b38 | Devin Nakamura | return -1; |
45 | 43642b38 | Devin Nakamura | } |
46 | cf070d7e | Christoph Hellwig | |
47 | 43642b38 | Devin Nakamura | return pattern;
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48 | cf070d7e | Christoph Hellwig | } |
49 | cf070d7e | Christoph Hellwig | |
50 | cf070d7e | Christoph Hellwig | /*
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51 | e3aff4f6 | aliguori | * Memory allocation helpers.
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52 | e3aff4f6 | aliguori | *
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53 | e3aff4f6 | aliguori | * Make sure memory is aligned by default, or purposefully misaligned if
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54 | e3aff4f6 | aliguori | * that is specified on the command line.
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55 | e3aff4f6 | aliguori | */
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56 | e3aff4f6 | aliguori | |
57 | 43642b38 | Devin Nakamura | #define MISALIGN_OFFSET 16 |
58 | e3aff4f6 | aliguori | static void *qemu_io_alloc(size_t len, int pattern) |
59 | e3aff4f6 | aliguori | { |
60 | 43642b38 | Devin Nakamura | void *buf;
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61 | 43642b38 | Devin Nakamura | |
62 | 43642b38 | Devin Nakamura | if (misalign) {
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63 | 43642b38 | Devin Nakamura | len += MISALIGN_OFFSET; |
64 | 43642b38 | Devin Nakamura | } |
65 | 43642b38 | Devin Nakamura | buf = qemu_blockalign(bs, len); |
66 | 43642b38 | Devin Nakamura | memset(buf, pattern, len); |
67 | 43642b38 | Devin Nakamura | if (misalign) {
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68 | 43642b38 | Devin Nakamura | buf += MISALIGN_OFFSET; |
69 | 43642b38 | Devin Nakamura | } |
70 | 43642b38 | Devin Nakamura | return buf;
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71 | e3aff4f6 | aliguori | } |
72 | e3aff4f6 | aliguori | |
73 | e3aff4f6 | aliguori | static void qemu_io_free(void *p) |
74 | e3aff4f6 | aliguori | { |
75 | 43642b38 | Devin Nakamura | if (misalign) {
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76 | 43642b38 | Devin Nakamura | p -= MISALIGN_OFFSET; |
77 | 43642b38 | Devin Nakamura | } |
78 | 43642b38 | Devin Nakamura | qemu_vfree(p); |
79 | e3aff4f6 | aliguori | } |
80 | e3aff4f6 | aliguori | |
81 | 43642b38 | Devin Nakamura | static void dump_buffer(const void *buffer, int64_t offset, int len) |
82 | e3aff4f6 | aliguori | { |
83 | 43642b38 | Devin Nakamura | int i, j;
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84 | 43642b38 | Devin Nakamura | const uint8_t *p;
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85 | 43642b38 | Devin Nakamura | |
86 | 43642b38 | Devin Nakamura | for (i = 0, p = buffer; i < len; i += 16) { |
87 | 43642b38 | Devin Nakamura | const uint8_t *s = p;
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88 | 43642b38 | Devin Nakamura | |
89 | 43642b38 | Devin Nakamura | printf("%08" PRIx64 ": ", offset + i); |
90 | 43642b38 | Devin Nakamura | for (j = 0; j < 16 && i + j < len; j++, p++) { |
91 | 43642b38 | Devin Nakamura | printf("%02x ", *p);
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92 | 43642b38 | Devin Nakamura | } |
93 | 43642b38 | Devin Nakamura | printf(" ");
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94 | 43642b38 | Devin Nakamura | for (j = 0; j < 16 && i + j < len; j++, s++) { |
95 | 43642b38 | Devin Nakamura | if (isalnum(*s)) {
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96 | 43642b38 | Devin Nakamura | printf("%c", *s);
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97 | 43642b38 | Devin Nakamura | } else {
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98 | 43642b38 | Devin Nakamura | printf(".");
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99 | 43642b38 | Devin Nakamura | } |
100 | 43642b38 | Devin Nakamura | } |
101 | 43642b38 | Devin Nakamura | printf("\n");
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102 | 43642b38 | Devin Nakamura | } |
103 | e3aff4f6 | aliguori | } |
104 | e3aff4f6 | aliguori | |
105 | 43642b38 | Devin Nakamura | static void print_report(const char *op, struct timeval *t, int64_t offset, |
106 | 43642b38 | Devin Nakamura | int count, int total, int cnt, int Cflag) |
107 | e3aff4f6 | aliguori | { |
108 | 43642b38 | Devin Nakamura | char s1[64], s2[64], ts[64]; |
109 | 43642b38 | Devin Nakamura | |
110 | 43642b38 | Devin Nakamura | timestr(t, ts, sizeof(ts), Cflag ? VERBOSE_FIXED_TIME : 0); |
111 | 43642b38 | Devin Nakamura | if (!Cflag) {
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112 | 43642b38 | Devin Nakamura | cvtstr((double)total, s1, sizeof(s1)); |
113 | 43642b38 | Devin Nakamura | cvtstr(tdiv((double)total, *t), s2, sizeof(s2)); |
114 | 43642b38 | Devin Nakamura | printf("%s %d/%d bytes at offset %" PRId64 "\n", |
115 | 43642b38 | Devin Nakamura | op, total, count, offset); |
116 | 43642b38 | Devin Nakamura | printf("%s, %d ops; %s (%s/sec and %.4f ops/sec)\n",
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117 | 43642b38 | Devin Nakamura | s1, cnt, ts, s2, tdiv((double)cnt, *t));
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118 | 43642b38 | Devin Nakamura | } else {/* bytes,ops,time,bytes/sec,ops/sec */ |
119 | 43642b38 | Devin Nakamura | printf("%d,%d,%s,%.3f,%.3f\n",
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120 | 43642b38 | Devin Nakamura | total, cnt, ts, |
121 | 43642b38 | Devin Nakamura | tdiv((double)total, *t),
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122 | 43642b38 | Devin Nakamura | tdiv((double)cnt, *t));
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123 | 43642b38 | Devin Nakamura | } |
124 | e3aff4f6 | aliguori | } |
125 | e3aff4f6 | aliguori | |
126 | cf57298a | Christoph Hellwig | /*
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127 | cf57298a | Christoph Hellwig | * Parse multiple length statements for vectored I/O, and construct an I/O
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128 | cf57298a | Christoph Hellwig | * vector matching it.
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129 | cf57298a | Christoph Hellwig | */
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130 | cf57298a | Christoph Hellwig | static void * |
131 | cf57298a | Christoph Hellwig | create_iovec(QEMUIOVector *qiov, char **argv, int nr_iov, int pattern) |
132 | cf57298a | Christoph Hellwig | { |
133 | 43642b38 | Devin Nakamura | size_t *sizes = calloc(nr_iov, sizeof(size_t));
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134 | 43642b38 | Devin Nakamura | size_t count = 0;
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135 | 43642b38 | Devin Nakamura | void *buf = NULL; |
136 | 43642b38 | Devin Nakamura | void *p;
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137 | 43642b38 | Devin Nakamura | int i;
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138 | 43642b38 | Devin Nakamura | |
139 | 43642b38 | Devin Nakamura | for (i = 0; i < nr_iov; i++) { |
140 | 43642b38 | Devin Nakamura | char *arg = argv[i];
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141 | 43642b38 | Devin Nakamura | int64_t len; |
142 | 43642b38 | Devin Nakamura | |
143 | 43642b38 | Devin Nakamura | len = cvtnum(arg); |
144 | 43642b38 | Devin Nakamura | if (len < 0) { |
145 | 43642b38 | Devin Nakamura | printf("non-numeric length argument -- %s\n", arg);
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146 | 43642b38 | Devin Nakamura | goto fail;
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147 | 43642b38 | Devin Nakamura | } |
148 | 43642b38 | Devin Nakamura | |
149 | 43642b38 | Devin Nakamura | /* should be SIZE_T_MAX, but that doesn't exist */
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150 | 43642b38 | Devin Nakamura | if (len > INT_MAX) {
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151 | 43642b38 | Devin Nakamura | printf("too large length argument -- %s\n", arg);
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152 | 43642b38 | Devin Nakamura | goto fail;
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153 | 43642b38 | Devin Nakamura | } |
154 | 43642b38 | Devin Nakamura | |
155 | 43642b38 | Devin Nakamura | if (len & 0x1ff) { |
156 | 43642b38 | Devin Nakamura | printf("length argument %" PRId64
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157 | 43642b38 | Devin Nakamura | " is not sector aligned\n", len);
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158 | 43642b38 | Devin Nakamura | goto fail;
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159 | 43642b38 | Devin Nakamura | } |
160 | 43642b38 | Devin Nakamura | |
161 | 43642b38 | Devin Nakamura | sizes[i] = len; |
162 | 43642b38 | Devin Nakamura | count += len; |
163 | 43642b38 | Devin Nakamura | } |
164 | 43642b38 | Devin Nakamura | |
165 | 43642b38 | Devin Nakamura | qemu_iovec_init(qiov, nr_iov); |
166 | 43642b38 | Devin Nakamura | |
167 | 43642b38 | Devin Nakamura | buf = p = qemu_io_alloc(count, pattern); |
168 | 43642b38 | Devin Nakamura | |
169 | 43642b38 | Devin Nakamura | for (i = 0; i < nr_iov; i++) { |
170 | 43642b38 | Devin Nakamura | qemu_iovec_add(qiov, p, sizes[i]); |
171 | 43642b38 | Devin Nakamura | p += sizes[i]; |
172 | 43642b38 | Devin Nakamura | } |
173 | cf57298a | Christoph Hellwig | |
174 | 40a0d7c3 | Kevin Wolf | fail:
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175 | 43642b38 | Devin Nakamura | free(sizes); |
176 | 43642b38 | Devin Nakamura | return buf;
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177 | cf57298a | Christoph Hellwig | } |
178 | cf57298a | Christoph Hellwig | |
179 | e3aff4f6 | aliguori | static int do_read(char *buf, int64_t offset, int count, int *total) |
180 | e3aff4f6 | aliguori | { |
181 | 43642b38 | Devin Nakamura | int ret;
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182 | e3aff4f6 | aliguori | |
183 | 43642b38 | Devin Nakamura | ret = bdrv_read(bs, offset >> 9, (uint8_t *)buf, count >> 9); |
184 | 43642b38 | Devin Nakamura | if (ret < 0) { |
185 | 43642b38 | Devin Nakamura | return ret;
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186 | 43642b38 | Devin Nakamura | } |
187 | 43642b38 | Devin Nakamura | *total = count; |
188 | 43642b38 | Devin Nakamura | return 1; |
189 | e3aff4f6 | aliguori | } |
190 | e3aff4f6 | aliguori | |
191 | e3aff4f6 | aliguori | static int do_write(char *buf, int64_t offset, int count, int *total) |
192 | e3aff4f6 | aliguori | { |
193 | 43642b38 | Devin Nakamura | int ret;
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194 | e3aff4f6 | aliguori | |
195 | 43642b38 | Devin Nakamura | ret = bdrv_write(bs, offset >> 9, (uint8_t *)buf, count >> 9); |
196 | 43642b38 | Devin Nakamura | if (ret < 0) { |
197 | 43642b38 | Devin Nakamura | return ret;
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198 | 43642b38 | Devin Nakamura | } |
199 | 43642b38 | Devin Nakamura | *total = count; |
200 | 43642b38 | Devin Nakamura | return 1; |
201 | e3aff4f6 | aliguori | } |
202 | e3aff4f6 | aliguori | |
203 | e3aff4f6 | aliguori | static int do_pread(char *buf, int64_t offset, int count, int *total) |
204 | e3aff4f6 | aliguori | { |
205 | 43642b38 | Devin Nakamura | *total = bdrv_pread(bs, offset, (uint8_t *)buf, count); |
206 | 43642b38 | Devin Nakamura | if (*total < 0) { |
207 | 43642b38 | Devin Nakamura | return *total;
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208 | 43642b38 | Devin Nakamura | } |
209 | 43642b38 | Devin Nakamura | return 1; |
210 | e3aff4f6 | aliguori | } |
211 | e3aff4f6 | aliguori | |
212 | e3aff4f6 | aliguori | static int do_pwrite(char *buf, int64_t offset, int count, int *total) |
213 | e3aff4f6 | aliguori | { |
214 | 43642b38 | Devin Nakamura | *total = bdrv_pwrite(bs, offset, (uint8_t *)buf, count); |
215 | 43642b38 | Devin Nakamura | if (*total < 0) { |
216 | 43642b38 | Devin Nakamura | return *total;
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217 | 43642b38 | Devin Nakamura | } |
218 | 43642b38 | Devin Nakamura | return 1; |
219 | e3aff4f6 | aliguori | } |
220 | e3aff4f6 | aliguori | |
221 | ca94dbc7 | Kevin Wolf | static int do_load_vmstate(char *buf, int64_t offset, int count, int *total) |
222 | ca94dbc7 | Kevin Wolf | { |
223 | 43642b38 | Devin Nakamura | *total = bdrv_load_vmstate(bs, (uint8_t *)buf, offset, count); |
224 | 43642b38 | Devin Nakamura | if (*total < 0) { |
225 | 43642b38 | Devin Nakamura | return *total;
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226 | 43642b38 | Devin Nakamura | } |
227 | 43642b38 | Devin Nakamura | return 1; |
228 | ca94dbc7 | Kevin Wolf | } |
229 | ca94dbc7 | Kevin Wolf | |
230 | ca94dbc7 | Kevin Wolf | static int do_save_vmstate(char *buf, int64_t offset, int count, int *total) |
231 | ca94dbc7 | Kevin Wolf | { |
232 | 43642b38 | Devin Nakamura | *total = bdrv_save_vmstate(bs, (uint8_t *)buf, offset, count); |
233 | 43642b38 | Devin Nakamura | if (*total < 0) { |
234 | 43642b38 | Devin Nakamura | return *total;
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235 | 43642b38 | Devin Nakamura | } |
236 | 43642b38 | Devin Nakamura | return 1; |
237 | ca94dbc7 | Kevin Wolf | } |
238 | ca94dbc7 | Kevin Wolf | |
239 | e3aff4f6 | aliguori | #define NOT_DONE 0x7fffffff |
240 | e3aff4f6 | aliguori | static void aio_rw_done(void *opaque, int ret) |
241 | e3aff4f6 | aliguori | { |
242 | 43642b38 | Devin Nakamura | *(int *)opaque = ret;
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243 | e3aff4f6 | aliguori | } |
244 | e3aff4f6 | aliguori | |
245 | e3aff4f6 | aliguori | static int do_aio_readv(QEMUIOVector *qiov, int64_t offset, int *total) |
246 | e3aff4f6 | aliguori | { |
247 | 43642b38 | Devin Nakamura | BlockDriverAIOCB *acb; |
248 | 43642b38 | Devin Nakamura | int async_ret = NOT_DONE;
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249 | e3aff4f6 | aliguori | |
250 | 43642b38 | Devin Nakamura | acb = bdrv_aio_readv(bs, offset >> 9, qiov, qiov->size >> 9, |
251 | 43642b38 | Devin Nakamura | aio_rw_done, &async_ret); |
252 | 43642b38 | Devin Nakamura | if (!acb) {
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253 | 43642b38 | Devin Nakamura | return -EIO;
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254 | 43642b38 | Devin Nakamura | } |
255 | 43642b38 | Devin Nakamura | while (async_ret == NOT_DONE) {
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256 | 43642b38 | Devin Nakamura | qemu_aio_wait(); |
257 | 43642b38 | Devin Nakamura | } |
258 | e3aff4f6 | aliguori | |
259 | 43642b38 | Devin Nakamura | *total = qiov->size; |
260 | 43642b38 | Devin Nakamura | return async_ret < 0 ? async_ret : 1; |
261 | e3aff4f6 | aliguori | } |
262 | e3aff4f6 | aliguori | |
263 | e3aff4f6 | aliguori | static int do_aio_writev(QEMUIOVector *qiov, int64_t offset, int *total) |
264 | e3aff4f6 | aliguori | { |
265 | 43642b38 | Devin Nakamura | BlockDriverAIOCB *acb; |
266 | 43642b38 | Devin Nakamura | int async_ret = NOT_DONE;
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267 | e3aff4f6 | aliguori | |
268 | 43642b38 | Devin Nakamura | acb = bdrv_aio_writev(bs, offset >> 9, qiov, qiov->size >> 9, |
269 | 43642b38 | Devin Nakamura | aio_rw_done, &async_ret); |
270 | 43642b38 | Devin Nakamura | if (!acb) {
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271 | 43642b38 | Devin Nakamura | return -EIO;
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272 | 43642b38 | Devin Nakamura | } |
273 | e3aff4f6 | aliguori | |
274 | 43642b38 | Devin Nakamura | while (async_ret == NOT_DONE) {
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275 | 43642b38 | Devin Nakamura | qemu_aio_wait(); |
276 | 43642b38 | Devin Nakamura | } |
277 | e3aff4f6 | aliguori | |
278 | 43642b38 | Devin Nakamura | *total = qiov->size; |
279 | 43642b38 | Devin Nakamura | return async_ret < 0 ? async_ret : 1; |
280 | e3aff4f6 | aliguori | } |
281 | e3aff4f6 | aliguori | |
282 | 776cbbbd | Kevin Wolf | struct multiwrite_async_ret {
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283 | 43642b38 | Devin Nakamura | int num_done;
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284 | 43642b38 | Devin Nakamura | int error;
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285 | 776cbbbd | Kevin Wolf | }; |
286 | 776cbbbd | Kevin Wolf | |
287 | 776cbbbd | Kevin Wolf | static void multiwrite_cb(void *opaque, int ret) |
288 | 776cbbbd | Kevin Wolf | { |
289 | 43642b38 | Devin Nakamura | struct multiwrite_async_ret *async_ret = opaque;
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290 | 776cbbbd | Kevin Wolf | |
291 | 43642b38 | Devin Nakamura | async_ret->num_done++; |
292 | 43642b38 | Devin Nakamura | if (ret < 0) { |
293 | 43642b38 | Devin Nakamura | async_ret->error = ret; |
294 | 43642b38 | Devin Nakamura | } |
295 | 776cbbbd | Kevin Wolf | } |
296 | 776cbbbd | Kevin Wolf | |
297 | 776cbbbd | Kevin Wolf | static int do_aio_multiwrite(BlockRequest* reqs, int num_reqs, int *total) |
298 | 776cbbbd | Kevin Wolf | { |
299 | 43642b38 | Devin Nakamura | int i, ret;
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300 | 43642b38 | Devin Nakamura | struct multiwrite_async_ret async_ret = {
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301 | 43642b38 | Devin Nakamura | .num_done = 0,
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302 | 43642b38 | Devin Nakamura | .error = 0,
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303 | 43642b38 | Devin Nakamura | }; |
304 | 43642b38 | Devin Nakamura | |
305 | 43642b38 | Devin Nakamura | *total = 0;
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306 | 43642b38 | Devin Nakamura | for (i = 0; i < num_reqs; i++) { |
307 | 43642b38 | Devin Nakamura | reqs[i].cb = multiwrite_cb; |
308 | 43642b38 | Devin Nakamura | reqs[i].opaque = &async_ret; |
309 | 43642b38 | Devin Nakamura | *total += reqs[i].qiov->size; |
310 | 43642b38 | Devin Nakamura | } |
311 | 43642b38 | Devin Nakamura | |
312 | 43642b38 | Devin Nakamura | ret = bdrv_aio_multiwrite(bs, reqs, num_reqs); |
313 | 43642b38 | Devin Nakamura | if (ret < 0) { |
314 | 43642b38 | Devin Nakamura | return ret;
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315 | 43642b38 | Devin Nakamura | } |
316 | 43642b38 | Devin Nakamura | |
317 | 43642b38 | Devin Nakamura | while (async_ret.num_done < num_reqs) {
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318 | 43642b38 | Devin Nakamura | qemu_aio_wait(); |
319 | 43642b38 | Devin Nakamura | } |
320 | 43642b38 | Devin Nakamura | |
321 | 43642b38 | Devin Nakamura | return async_ret.error < 0 ? async_ret.error : 1; |
322 | 776cbbbd | Kevin Wolf | } |
323 | e3aff4f6 | aliguori | |
324 | 43642b38 | Devin Nakamura | static void read_help(void) |
325 | e3aff4f6 | aliguori | { |
326 | 43642b38 | Devin Nakamura | printf( |
327 | e3aff4f6 | aliguori | "\n"
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328 | e3aff4f6 | aliguori | " reads a range of bytes from the given offset\n"
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329 | e3aff4f6 | aliguori | "\n"
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330 | e3aff4f6 | aliguori | " Example:\n"
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331 | e3aff4f6 | aliguori | " 'read -v 512 1k' - dumps 1 kilobyte read from 512 bytes into the file\n"
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332 | e3aff4f6 | aliguori | "\n"
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333 | e3aff4f6 | aliguori | " Reads a segment of the currently open file, optionally dumping it to the\n"
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334 | e3aff4f6 | aliguori | " standard output stream (with -v option) for subsequent inspection.\n"
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335 | ca94dbc7 | Kevin Wolf | " -b, -- read from the VM state rather than the virtual disk\n"
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336 | d9654a58 | Kevin Wolf | " -C, -- report statistics in a machine parsable format\n"
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337 | d9654a58 | Kevin Wolf | " -l, -- length for pattern verification (only with -P)\n"
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338 | e3aff4f6 | aliguori | " -p, -- use bdrv_pread to read the file\n"
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339 | c48101ae | aliguori | " -P, -- use a pattern to verify read data\n"
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340 | 095343ad | Kevin Wolf | " -q, -- quiet mode, do not show I/O statistics\n"
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341 | d9654a58 | Kevin Wolf | " -s, -- start offset for pattern verification (only with -P)\n"
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342 | d9654a58 | Kevin Wolf | " -v, -- dump buffer to standard output\n"
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343 | e3aff4f6 | aliguori | "\n");
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344 | e3aff4f6 | aliguori | } |
345 | e3aff4f6 | aliguori | |
346 | 22a2bdcb | Blue Swirl | static int read_f(int argc, char **argv); |
347 | 22a2bdcb | Blue Swirl | |
348 | 22a2bdcb | Blue Swirl | static const cmdinfo_t read_cmd = { |
349 | 43642b38 | Devin Nakamura | .name = "read",
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350 | 43642b38 | Devin Nakamura | .altname = "r",
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351 | 43642b38 | Devin Nakamura | .cfunc = read_f, |
352 | 43642b38 | Devin Nakamura | .argmin = 2,
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353 | 43642b38 | Devin Nakamura | .argmax = -1,
|
354 | 43642b38 | Devin Nakamura | .args = "[-abCpqv] [-P pattern [-s off] [-l len]] off len",
|
355 | 43642b38 | Devin Nakamura | .oneline = "reads a number of bytes at a specified offset",
|
356 | 43642b38 | Devin Nakamura | .help = read_help, |
357 | 22a2bdcb | Blue Swirl | }; |
358 | 22a2bdcb | Blue Swirl | |
359 | 43642b38 | Devin Nakamura | static int read_f(int argc, char **argv) |
360 | e3aff4f6 | aliguori | { |
361 | 43642b38 | Devin Nakamura | struct timeval t1, t2;
|
362 | 43642b38 | Devin Nakamura | int Cflag = 0, pflag = 0, qflag = 0, vflag = 0; |
363 | 43642b38 | Devin Nakamura | int Pflag = 0, sflag = 0, lflag = 0, bflag = 0; |
364 | 43642b38 | Devin Nakamura | int c, cnt;
|
365 | 43642b38 | Devin Nakamura | char *buf;
|
366 | 43642b38 | Devin Nakamura | int64_t offset; |
367 | 43642b38 | Devin Nakamura | int count;
|
368 | 43642b38 | Devin Nakamura | /* Some compilers get confused and warn if this is not initialized. */
|
369 | 43642b38 | Devin Nakamura | int total = 0; |
370 | 43642b38 | Devin Nakamura | int pattern = 0, pattern_offset = 0, pattern_count = 0; |
371 | 43642b38 | Devin Nakamura | |
372 | 43642b38 | Devin Nakamura | while ((c = getopt(argc, argv, "bCl:pP:qs:v")) != EOF) { |
373 | 43642b38 | Devin Nakamura | switch (c) {
|
374 | 43642b38 | Devin Nakamura | case 'b': |
375 | 43642b38 | Devin Nakamura | bflag = 1;
|
376 | 43642b38 | Devin Nakamura | break;
|
377 | 43642b38 | Devin Nakamura | case 'C': |
378 | 43642b38 | Devin Nakamura | Cflag = 1;
|
379 | 43642b38 | Devin Nakamura | break;
|
380 | 43642b38 | Devin Nakamura | case 'l': |
381 | 43642b38 | Devin Nakamura | lflag = 1;
|
382 | 43642b38 | Devin Nakamura | pattern_count = cvtnum(optarg); |
383 | 43642b38 | Devin Nakamura | if (pattern_count < 0) { |
384 | 43642b38 | Devin Nakamura | printf("non-numeric length argument -- %s\n", optarg);
|
385 | 43642b38 | Devin Nakamura | return 0; |
386 | 43642b38 | Devin Nakamura | } |
387 | 43642b38 | Devin Nakamura | break;
|
388 | 43642b38 | Devin Nakamura | case 'p': |
389 | 43642b38 | Devin Nakamura | pflag = 1;
|
390 | 43642b38 | Devin Nakamura | break;
|
391 | 43642b38 | Devin Nakamura | case 'P': |
392 | 43642b38 | Devin Nakamura | Pflag = 1;
|
393 | 43642b38 | Devin Nakamura | pattern = parse_pattern(optarg); |
394 | 43642b38 | Devin Nakamura | if (pattern < 0) { |
395 | 43642b38 | Devin Nakamura | return 0; |
396 | 43642b38 | Devin Nakamura | } |
397 | 43642b38 | Devin Nakamura | break;
|
398 | 43642b38 | Devin Nakamura | case 'q': |
399 | 43642b38 | Devin Nakamura | qflag = 1;
|
400 | 43642b38 | Devin Nakamura | break;
|
401 | 43642b38 | Devin Nakamura | case 's': |
402 | 43642b38 | Devin Nakamura | sflag = 1;
|
403 | 43642b38 | Devin Nakamura | pattern_offset = cvtnum(optarg); |
404 | 43642b38 | Devin Nakamura | if (pattern_offset < 0) { |
405 | 43642b38 | Devin Nakamura | printf("non-numeric length argument -- %s\n", optarg);
|
406 | 43642b38 | Devin Nakamura | return 0; |
407 | 43642b38 | Devin Nakamura | } |
408 | 43642b38 | Devin Nakamura | break;
|
409 | 43642b38 | Devin Nakamura | case 'v': |
410 | 43642b38 | Devin Nakamura | vflag = 1;
|
411 | 43642b38 | Devin Nakamura | break;
|
412 | 43642b38 | Devin Nakamura | default:
|
413 | 43642b38 | Devin Nakamura | return command_usage(&read_cmd);
|
414 | 43642b38 | Devin Nakamura | } |
415 | 43642b38 | Devin Nakamura | } |
416 | 43642b38 | Devin Nakamura | |
417 | 43642b38 | Devin Nakamura | if (optind != argc - 2) { |
418 | 43642b38 | Devin Nakamura | return command_usage(&read_cmd);
|
419 | 43642b38 | Devin Nakamura | } |
420 | 43642b38 | Devin Nakamura | |
421 | 43642b38 | Devin Nakamura | if (bflag && pflag) {
|
422 | 43642b38 | Devin Nakamura | printf("-b and -p cannot be specified at the same time\n");
|
423 | 43642b38 | Devin Nakamura | return 0; |
424 | 43642b38 | Devin Nakamura | } |
425 | 43642b38 | Devin Nakamura | |
426 | 43642b38 | Devin Nakamura | offset = cvtnum(argv[optind]); |
427 | 43642b38 | Devin Nakamura | if (offset < 0) { |
428 | 43642b38 | Devin Nakamura | printf("non-numeric length argument -- %s\n", argv[optind]);
|
429 | 43642b38 | Devin Nakamura | return 0; |
430 | 43642b38 | Devin Nakamura | } |
431 | 43642b38 | Devin Nakamura | |
432 | 43642b38 | Devin Nakamura | optind++; |
433 | 43642b38 | Devin Nakamura | count = cvtnum(argv[optind]); |
434 | 43642b38 | Devin Nakamura | if (count < 0) { |
435 | 43642b38 | Devin Nakamura | printf("non-numeric length argument -- %s\n", argv[optind]);
|
436 | 43642b38 | Devin Nakamura | return 0; |
437 | 43642b38 | Devin Nakamura | } |
438 | e3aff4f6 | aliguori | |
439 | d9654a58 | Kevin Wolf | if (!Pflag && (lflag || sflag)) {
|
440 | d9654a58 | Kevin Wolf | return command_usage(&read_cmd);
|
441 | d9654a58 | Kevin Wolf | } |
442 | d9654a58 | Kevin Wolf | |
443 | d9654a58 | Kevin Wolf | if (!lflag) {
|
444 | d9654a58 | Kevin Wolf | pattern_count = count - pattern_offset; |
445 | d9654a58 | Kevin Wolf | } |
446 | d9654a58 | Kevin Wolf | |
447 | d9654a58 | Kevin Wolf | if ((pattern_count < 0) || (pattern_count + pattern_offset > count)) { |
448 | d9654a58 | Kevin Wolf | printf("pattern verfication range exceeds end of read data\n");
|
449 | d9654a58 | Kevin Wolf | return 0; |
450 | d9654a58 | Kevin Wolf | } |
451 | d9654a58 | Kevin Wolf | |
452 | 5afc8b3d | Devin Nakamura | if (!pflag) {
|
453 | 43642b38 | Devin Nakamura | if (offset & 0x1ff) { |
454 | 43642b38 | Devin Nakamura | printf("offset %" PRId64 " is not sector aligned\n", |
455 | 43642b38 | Devin Nakamura | offset); |
456 | 43642b38 | Devin Nakamura | return 0; |
457 | 43642b38 | Devin Nakamura | } |
458 | 43642b38 | Devin Nakamura | if (count & 0x1ff) { |
459 | 43642b38 | Devin Nakamura | printf("count %d is not sector aligned\n",
|
460 | 43642b38 | Devin Nakamura | count); |
461 | 43642b38 | Devin Nakamura | return 0; |
462 | 43642b38 | Devin Nakamura | } |
463 | 5afc8b3d | Devin Nakamura | } |
464 | 43642b38 | Devin Nakamura | |
465 | 43642b38 | Devin Nakamura | buf = qemu_io_alloc(count, 0xab);
|
466 | 43642b38 | Devin Nakamura | |
467 | 43642b38 | Devin Nakamura | gettimeofday(&t1, NULL);
|
468 | 43642b38 | Devin Nakamura | if (pflag) {
|
469 | 43642b38 | Devin Nakamura | cnt = do_pread(buf, offset, count, &total); |
470 | 43642b38 | Devin Nakamura | } else if (bflag) { |
471 | 43642b38 | Devin Nakamura | cnt = do_load_vmstate(buf, offset, count, &total); |
472 | 43642b38 | Devin Nakamura | } else {
|
473 | 43642b38 | Devin Nakamura | cnt = do_read(buf, offset, count, &total); |
474 | 43642b38 | Devin Nakamura | } |
475 | 43642b38 | Devin Nakamura | gettimeofday(&t2, NULL);
|
476 | 43642b38 | Devin Nakamura | |
477 | 43642b38 | Devin Nakamura | if (cnt < 0) { |
478 | 43642b38 | Devin Nakamura | printf("read failed: %s\n", strerror(-cnt));
|
479 | 43642b38 | Devin Nakamura | goto out;
|
480 | 43642b38 | Devin Nakamura | } |
481 | 43642b38 | Devin Nakamura | |
482 | 43642b38 | Devin Nakamura | if (Pflag) {
|
483 | 43642b38 | Devin Nakamura | void *cmp_buf = malloc(pattern_count);
|
484 | 43642b38 | Devin Nakamura | memset(cmp_buf, pattern, pattern_count); |
485 | 43642b38 | Devin Nakamura | if (memcmp(buf + pattern_offset, cmp_buf, pattern_count)) {
|
486 | 43642b38 | Devin Nakamura | printf("Pattern verification failed at offset %"
|
487 | 43642b38 | Devin Nakamura | PRId64 ", %d bytes\n",
|
488 | 43642b38 | Devin Nakamura | offset + pattern_offset, pattern_count); |
489 | 43642b38 | Devin Nakamura | } |
490 | 43642b38 | Devin Nakamura | free(cmp_buf); |
491 | 43642b38 | Devin Nakamura | } |
492 | 43642b38 | Devin Nakamura | |
493 | 43642b38 | Devin Nakamura | if (qflag) {
|
494 | 43642b38 | Devin Nakamura | goto out;
|
495 | 43642b38 | Devin Nakamura | } |
496 | 43642b38 | Devin Nakamura | |
497 | 43642b38 | Devin Nakamura | if (vflag) {
|
498 | 43642b38 | Devin Nakamura | dump_buffer(buf, offset, count); |
499 | 43642b38 | Devin Nakamura | } |
500 | 43642b38 | Devin Nakamura | |
501 | 43642b38 | Devin Nakamura | /* Finally, report back -- -C gives a parsable format */
|
502 | 43642b38 | Devin Nakamura | t2 = tsub(t2, t1); |
503 | 43642b38 | Devin Nakamura | print_report("read", &t2, offset, count, total, cnt, Cflag);
|
504 | e3aff4f6 | aliguori | |
505 | 7d8abfcb | Kevin Wolf | out:
|
506 | 43642b38 | Devin Nakamura | qemu_io_free(buf); |
507 | e3aff4f6 | aliguori | |
508 | 43642b38 | Devin Nakamura | return 0; |
509 | e3aff4f6 | aliguori | } |
510 | e3aff4f6 | aliguori | |
511 | 43642b38 | Devin Nakamura | static void readv_help(void) |
512 | e3aff4f6 | aliguori | { |
513 | 43642b38 | Devin Nakamura | printf( |
514 | e3aff4f6 | aliguori | "\n"
|
515 | e3aff4f6 | aliguori | " reads a range of bytes from the given offset into multiple buffers\n"
|
516 | e3aff4f6 | aliguori | "\n"
|
517 | e3aff4f6 | aliguori | " Example:\n"
|
518 | e3aff4f6 | aliguori | " 'readv -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n"
|
519 | e3aff4f6 | aliguori | "\n"
|
520 | e3aff4f6 | aliguori | " Reads a segment of the currently open file, optionally dumping it to the\n"
|
521 | e3aff4f6 | aliguori | " standard output stream (with -v option) for subsequent inspection.\n"
|
522 | e3aff4f6 | aliguori | " Uses multiple iovec buffers if more than one byte range is specified.\n"
|
523 | e3aff4f6 | aliguori | " -C, -- report statistics in a machine parsable format\n"
|
524 | c48101ae | aliguori | " -P, -- use a pattern to verify read data\n"
|
525 | e3aff4f6 | aliguori | " -v, -- dump buffer to standard output\n"
|
526 | 095343ad | Kevin Wolf | " -q, -- quiet mode, do not show I/O statistics\n"
|
527 | e3aff4f6 | aliguori | "\n");
|
528 | e3aff4f6 | aliguori | } |
529 | e3aff4f6 | aliguori | |
530 | 22a2bdcb | Blue Swirl | static int readv_f(int argc, char **argv); |
531 | 22a2bdcb | Blue Swirl | |
532 | 22a2bdcb | Blue Swirl | static const cmdinfo_t readv_cmd = { |
533 | 43642b38 | Devin Nakamura | .name = "readv",
|
534 | 43642b38 | Devin Nakamura | .cfunc = readv_f, |
535 | 43642b38 | Devin Nakamura | .argmin = 2,
|
536 | 43642b38 | Devin Nakamura | .argmax = -1,
|
537 | 43642b38 | Devin Nakamura | .args = "[-Cqv] [-P pattern ] off len [len..]",
|
538 | 43642b38 | Devin Nakamura | .oneline = "reads a number of bytes at a specified offset",
|
539 | 43642b38 | Devin Nakamura | .help = readv_help, |
540 | 22a2bdcb | Blue Swirl | }; |
541 | 22a2bdcb | Blue Swirl | |
542 | 43642b38 | Devin Nakamura | static int readv_f(int argc, char **argv) |
543 | e3aff4f6 | aliguori | { |
544 | 43642b38 | Devin Nakamura | struct timeval t1, t2;
|
545 | 43642b38 | Devin Nakamura | int Cflag = 0, qflag = 0, vflag = 0; |
546 | 43642b38 | Devin Nakamura | int c, cnt;
|
547 | 43642b38 | Devin Nakamura | char *buf;
|
548 | 43642b38 | Devin Nakamura | int64_t offset; |
549 | 43642b38 | Devin Nakamura | /* Some compilers get confused and warn if this is not initialized. */
|
550 | 43642b38 | Devin Nakamura | int total = 0; |
551 | 43642b38 | Devin Nakamura | int nr_iov;
|
552 | 43642b38 | Devin Nakamura | QEMUIOVector qiov; |
553 | 43642b38 | Devin Nakamura | int pattern = 0; |
554 | 43642b38 | Devin Nakamura | int Pflag = 0; |
555 | 43642b38 | Devin Nakamura | |
556 | 43642b38 | Devin Nakamura | while ((c = getopt(argc, argv, "CP:qv")) != EOF) { |
557 | 43642b38 | Devin Nakamura | switch (c) {
|
558 | 43642b38 | Devin Nakamura | case 'C': |
559 | 43642b38 | Devin Nakamura | Cflag = 1;
|
560 | 43642b38 | Devin Nakamura | break;
|
561 | 43642b38 | Devin Nakamura | case 'P': |
562 | 43642b38 | Devin Nakamura | Pflag = 1;
|
563 | 43642b38 | Devin Nakamura | pattern = parse_pattern(optarg); |
564 | 43642b38 | Devin Nakamura | if (pattern < 0) { |
565 | 43642b38 | Devin Nakamura | return 0; |
566 | 43642b38 | Devin Nakamura | } |
567 | 43642b38 | Devin Nakamura | break;
|
568 | 43642b38 | Devin Nakamura | case 'q': |
569 | 43642b38 | Devin Nakamura | qflag = 1;
|
570 | 43642b38 | Devin Nakamura | break;
|
571 | 43642b38 | Devin Nakamura | case 'v': |
572 | 43642b38 | Devin Nakamura | vflag = 1;
|
573 | 43642b38 | Devin Nakamura | break;
|
574 | 43642b38 | Devin Nakamura | default:
|
575 | 43642b38 | Devin Nakamura | return command_usage(&readv_cmd);
|
576 | 43642b38 | Devin Nakamura | } |
577 | 43642b38 | Devin Nakamura | } |
578 | 43642b38 | Devin Nakamura | |
579 | 43642b38 | Devin Nakamura | if (optind > argc - 2) { |
580 | 43642b38 | Devin Nakamura | return command_usage(&readv_cmd);
|
581 | 43642b38 | Devin Nakamura | } |
582 | 43642b38 | Devin Nakamura | |
583 | 43642b38 | Devin Nakamura | |
584 | 43642b38 | Devin Nakamura | offset = cvtnum(argv[optind]); |
585 | 43642b38 | Devin Nakamura | if (offset < 0) { |
586 | 43642b38 | Devin Nakamura | printf("non-numeric length argument -- %s\n", argv[optind]);
|
587 | 43642b38 | Devin Nakamura | return 0; |
588 | 43642b38 | Devin Nakamura | } |
589 | 43642b38 | Devin Nakamura | optind++; |
590 | 43642b38 | Devin Nakamura | |
591 | 43642b38 | Devin Nakamura | if (offset & 0x1ff) { |
592 | 43642b38 | Devin Nakamura | printf("offset %" PRId64 " is not sector aligned\n", |
593 | 43642b38 | Devin Nakamura | offset); |
594 | 43642b38 | Devin Nakamura | return 0; |
595 | 43642b38 | Devin Nakamura | } |
596 | 43642b38 | Devin Nakamura | |
597 | 43642b38 | Devin Nakamura | nr_iov = argc - optind; |
598 | 43642b38 | Devin Nakamura | buf = create_iovec(&qiov, &argv[optind], nr_iov, 0xab);
|
599 | 43642b38 | Devin Nakamura | |
600 | 43642b38 | Devin Nakamura | gettimeofday(&t1, NULL);
|
601 | 43642b38 | Devin Nakamura | cnt = do_aio_readv(&qiov, offset, &total); |
602 | 43642b38 | Devin Nakamura | gettimeofday(&t2, NULL);
|
603 | 43642b38 | Devin Nakamura | |
604 | 43642b38 | Devin Nakamura | if (cnt < 0) { |
605 | 43642b38 | Devin Nakamura | printf("readv failed: %s\n", strerror(-cnt));
|
606 | 43642b38 | Devin Nakamura | goto out;
|
607 | 43642b38 | Devin Nakamura | } |
608 | 43642b38 | Devin Nakamura | |
609 | 43642b38 | Devin Nakamura | if (Pflag) {
|
610 | 43642b38 | Devin Nakamura | void *cmp_buf = malloc(qiov.size);
|
611 | 43642b38 | Devin Nakamura | memset(cmp_buf, pattern, qiov.size); |
612 | 43642b38 | Devin Nakamura | if (memcmp(buf, cmp_buf, qiov.size)) {
|
613 | 43642b38 | Devin Nakamura | printf("Pattern verification failed at offset %"
|
614 | 43642b38 | Devin Nakamura | PRId64 ", %zd bytes\n", offset, qiov.size);
|
615 | 43642b38 | Devin Nakamura | } |
616 | 43642b38 | Devin Nakamura | free(cmp_buf); |
617 | 43642b38 | Devin Nakamura | } |
618 | 43642b38 | Devin Nakamura | |
619 | 43642b38 | Devin Nakamura | if (qflag) {
|
620 | 43642b38 | Devin Nakamura | goto out;
|
621 | 43642b38 | Devin Nakamura | } |
622 | 43642b38 | Devin Nakamura | |
623 | 43642b38 | Devin Nakamura | if (vflag) {
|
624 | 43642b38 | Devin Nakamura | dump_buffer(buf, offset, qiov.size); |
625 | 43642b38 | Devin Nakamura | } |
626 | 43642b38 | Devin Nakamura | |
627 | 43642b38 | Devin Nakamura | /* Finally, report back -- -C gives a parsable format */
|
628 | 43642b38 | Devin Nakamura | t2 = tsub(t2, t1); |
629 | 43642b38 | Devin Nakamura | print_report("read", &t2, offset, qiov.size, total, cnt, Cflag);
|
630 | e3aff4f6 | aliguori | |
631 | 7d8abfcb | Kevin Wolf | out:
|
632 | 43642b38 | Devin Nakamura | qemu_io_free(buf); |
633 | 43642b38 | Devin Nakamura | return 0; |
634 | e3aff4f6 | aliguori | } |
635 | e3aff4f6 | aliguori | |
636 | 43642b38 | Devin Nakamura | static void write_help(void) |
637 | e3aff4f6 | aliguori | { |
638 | 43642b38 | Devin Nakamura | printf( |
639 | e3aff4f6 | aliguori | "\n"
|
640 | e3aff4f6 | aliguori | " writes a range of bytes from the given offset\n"
|
641 | e3aff4f6 | aliguori | "\n"
|
642 | e3aff4f6 | aliguori | " Example:\n"
|
643 | e3aff4f6 | aliguori | " 'write 512 1k' - writes 1 kilobyte at 512 bytes into the open file\n"
|
644 | e3aff4f6 | aliguori | "\n"
|
645 | e3aff4f6 | aliguori | " Writes into a segment of the currently open file, using a buffer\n"
|
646 | e3aff4f6 | aliguori | " filled with a set pattern (0xcdcdcdcd).\n"
|
647 | ca94dbc7 | Kevin Wolf | " -b, -- write to the VM state rather than the virtual disk\n"
|
648 | e3aff4f6 | aliguori | " -p, -- use bdrv_pwrite to write the file\n"
|
649 | e3aff4f6 | aliguori | " -P, -- use different pattern to fill file\n"
|
650 | e3aff4f6 | aliguori | " -C, -- report statistics in a machine parsable format\n"
|
651 | 095343ad | Kevin Wolf | " -q, -- quiet mode, do not show I/O statistics\n"
|
652 | e3aff4f6 | aliguori | "\n");
|
653 | e3aff4f6 | aliguori | } |
654 | e3aff4f6 | aliguori | |
655 | 22a2bdcb | Blue Swirl | static int write_f(int argc, char **argv); |
656 | 22a2bdcb | Blue Swirl | |
657 | 22a2bdcb | Blue Swirl | static const cmdinfo_t write_cmd = { |
658 | 43642b38 | Devin Nakamura | .name = "write",
|
659 | 43642b38 | Devin Nakamura | .altname = "w",
|
660 | 43642b38 | Devin Nakamura | .cfunc = write_f, |
661 | 43642b38 | Devin Nakamura | .argmin = 2,
|
662 | 43642b38 | Devin Nakamura | .argmax = -1,
|
663 | 43642b38 | Devin Nakamura | .args = "[-abCpq] [-P pattern ] off len",
|
664 | 43642b38 | Devin Nakamura | .oneline = "writes a number of bytes at a specified offset",
|
665 | 43642b38 | Devin Nakamura | .help = write_help, |
666 | 22a2bdcb | Blue Swirl | }; |
667 | 22a2bdcb | Blue Swirl | |
668 | 43642b38 | Devin Nakamura | static int write_f(int argc, char **argv) |
669 | e3aff4f6 | aliguori | { |
670 | 43642b38 | Devin Nakamura | struct timeval t1, t2;
|
671 | 43642b38 | Devin Nakamura | int Cflag = 0, pflag = 0, qflag = 0, bflag = 0; |
672 | 43642b38 | Devin Nakamura | int c, cnt;
|
673 | 43642b38 | Devin Nakamura | char *buf;
|
674 | 43642b38 | Devin Nakamura | int64_t offset; |
675 | 43642b38 | Devin Nakamura | int count;
|
676 | 43642b38 | Devin Nakamura | /* Some compilers get confused and warn if this is not initialized. */
|
677 | 43642b38 | Devin Nakamura | int total = 0; |
678 | 43642b38 | Devin Nakamura | int pattern = 0xcd; |
679 | 43642b38 | Devin Nakamura | |
680 | 43642b38 | Devin Nakamura | while ((c = getopt(argc, argv, "bCpP:q")) != EOF) { |
681 | 43642b38 | Devin Nakamura | switch (c) {
|
682 | 43642b38 | Devin Nakamura | case 'b': |
683 | 43642b38 | Devin Nakamura | bflag = 1;
|
684 | 43642b38 | Devin Nakamura | break;
|
685 | 43642b38 | Devin Nakamura | case 'C': |
686 | 43642b38 | Devin Nakamura | Cflag = 1;
|
687 | 43642b38 | Devin Nakamura | break;
|
688 | 43642b38 | Devin Nakamura | case 'p': |
689 | 43642b38 | Devin Nakamura | pflag = 1;
|
690 | 43642b38 | Devin Nakamura | break;
|
691 | 43642b38 | Devin Nakamura | case 'P': |
692 | 43642b38 | Devin Nakamura | pattern = parse_pattern(optarg); |
693 | 43642b38 | Devin Nakamura | if (pattern < 0) { |
694 | 43642b38 | Devin Nakamura | return 0; |
695 | 43642b38 | Devin Nakamura | } |
696 | 43642b38 | Devin Nakamura | break;
|
697 | 43642b38 | Devin Nakamura | case 'q': |
698 | 43642b38 | Devin Nakamura | qflag = 1;
|
699 | 43642b38 | Devin Nakamura | break;
|
700 | 43642b38 | Devin Nakamura | default:
|
701 | 43642b38 | Devin Nakamura | return command_usage(&write_cmd);
|
702 | 43642b38 | Devin Nakamura | } |
703 | 43642b38 | Devin Nakamura | } |
704 | 43642b38 | Devin Nakamura | |
705 | 43642b38 | Devin Nakamura | if (optind != argc - 2) { |
706 | 43642b38 | Devin Nakamura | return command_usage(&write_cmd);
|
707 | 43642b38 | Devin Nakamura | } |
708 | 43642b38 | Devin Nakamura | |
709 | 43642b38 | Devin Nakamura | if (bflag && pflag) {
|
710 | 43642b38 | Devin Nakamura | printf("-b and -p cannot be specified at the same time\n");
|
711 | 43642b38 | Devin Nakamura | return 0; |
712 | 43642b38 | Devin Nakamura | } |
713 | 43642b38 | Devin Nakamura | |
714 | 43642b38 | Devin Nakamura | offset = cvtnum(argv[optind]); |
715 | 43642b38 | Devin Nakamura | if (offset < 0) { |
716 | 43642b38 | Devin Nakamura | printf("non-numeric length argument -- %s\n", argv[optind]);
|
717 | 43642b38 | Devin Nakamura | return 0; |
718 | 43642b38 | Devin Nakamura | } |
719 | 43642b38 | Devin Nakamura | |
720 | 43642b38 | Devin Nakamura | optind++; |
721 | 43642b38 | Devin Nakamura | count = cvtnum(argv[optind]); |
722 | 43642b38 | Devin Nakamura | if (count < 0) { |
723 | 43642b38 | Devin Nakamura | printf("non-numeric length argument -- %s\n", argv[optind]);
|
724 | 43642b38 | Devin Nakamura | return 0; |
725 | 43642b38 | Devin Nakamura | } |
726 | 43642b38 | Devin Nakamura | |
727 | 43642b38 | Devin Nakamura | if (!pflag) {
|
728 | 43642b38 | Devin Nakamura | if (offset & 0x1ff) { |
729 | 43642b38 | Devin Nakamura | printf("offset %" PRId64 " is not sector aligned\n", |
730 | 43642b38 | Devin Nakamura | offset); |
731 | 43642b38 | Devin Nakamura | return 0; |
732 | 43642b38 | Devin Nakamura | } |
733 | 43642b38 | Devin Nakamura | |
734 | 43642b38 | Devin Nakamura | if (count & 0x1ff) { |
735 | 43642b38 | Devin Nakamura | printf("count %d is not sector aligned\n",
|
736 | 43642b38 | Devin Nakamura | count); |
737 | 43642b38 | Devin Nakamura | return 0; |
738 | 43642b38 | Devin Nakamura | } |
739 | 43642b38 | Devin Nakamura | } |
740 | 43642b38 | Devin Nakamura | |
741 | 43642b38 | Devin Nakamura | buf = qemu_io_alloc(count, pattern); |
742 | 43642b38 | Devin Nakamura | |
743 | 43642b38 | Devin Nakamura | gettimeofday(&t1, NULL);
|
744 | 43642b38 | Devin Nakamura | if (pflag) {
|
745 | 43642b38 | Devin Nakamura | cnt = do_pwrite(buf, offset, count, &total); |
746 | 43642b38 | Devin Nakamura | } else if (bflag) { |
747 | 43642b38 | Devin Nakamura | cnt = do_save_vmstate(buf, offset, count, &total); |
748 | 43642b38 | Devin Nakamura | } else {
|
749 | 43642b38 | Devin Nakamura | cnt = do_write(buf, offset, count, &total); |
750 | 43642b38 | Devin Nakamura | } |
751 | 43642b38 | Devin Nakamura | gettimeofday(&t2, NULL);
|
752 | 43642b38 | Devin Nakamura | |
753 | 43642b38 | Devin Nakamura | if (cnt < 0) { |
754 | 43642b38 | Devin Nakamura | printf("write failed: %s\n", strerror(-cnt));
|
755 | 43642b38 | Devin Nakamura | goto out;
|
756 | 43642b38 | Devin Nakamura | } |
757 | 43642b38 | Devin Nakamura | |
758 | 43642b38 | Devin Nakamura | if (qflag) {
|
759 | 43642b38 | Devin Nakamura | goto out;
|
760 | 43642b38 | Devin Nakamura | } |
761 | 43642b38 | Devin Nakamura | |
762 | 43642b38 | Devin Nakamura | /* Finally, report back -- -C gives a parsable format */
|
763 | 43642b38 | Devin Nakamura | t2 = tsub(t2, t1); |
764 | 43642b38 | Devin Nakamura | print_report("wrote", &t2, offset, count, total, cnt, Cflag);
|
765 | e3aff4f6 | aliguori | |
766 | 7d8abfcb | Kevin Wolf | out:
|
767 | 43642b38 | Devin Nakamura | qemu_io_free(buf); |
768 | e3aff4f6 | aliguori | |
769 | 43642b38 | Devin Nakamura | return 0; |
770 | e3aff4f6 | aliguori | } |
771 | e3aff4f6 | aliguori | |
772 | e3aff4f6 | aliguori | static void |
773 | e3aff4f6 | aliguori | writev_help(void)
|
774 | e3aff4f6 | aliguori | { |
775 | 43642b38 | Devin Nakamura | printf( |
776 | e3aff4f6 | aliguori | "\n"
|
777 | e3aff4f6 | aliguori | " writes a range of bytes from the given offset source from multiple buffers\n"
|
778 | e3aff4f6 | aliguori | "\n"
|
779 | e3aff4f6 | aliguori | " Example:\n"
|
780 | e3aff4f6 | aliguori | " 'write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n"
|
781 | e3aff4f6 | aliguori | "\n"
|
782 | e3aff4f6 | aliguori | " Writes into a segment of the currently open file, using a buffer\n"
|
783 | e3aff4f6 | aliguori | " filled with a set pattern (0xcdcdcdcd).\n"
|
784 | e3aff4f6 | aliguori | " -P, -- use different pattern to fill file\n"
|
785 | e3aff4f6 | aliguori | " -C, -- report statistics in a machine parsable format\n"
|
786 | 095343ad | Kevin Wolf | " -q, -- quiet mode, do not show I/O statistics\n"
|
787 | e3aff4f6 | aliguori | "\n");
|
788 | e3aff4f6 | aliguori | } |
789 | e3aff4f6 | aliguori | |
790 | 22a2bdcb | Blue Swirl | static int writev_f(int argc, char **argv); |
791 | 22a2bdcb | Blue Swirl | |
792 | 22a2bdcb | Blue Swirl | static const cmdinfo_t writev_cmd = { |
793 | 43642b38 | Devin Nakamura | .name = "writev",
|
794 | 43642b38 | Devin Nakamura | .cfunc = writev_f, |
795 | 43642b38 | Devin Nakamura | .argmin = 2,
|
796 | 43642b38 | Devin Nakamura | .argmax = -1,
|
797 | 43642b38 | Devin Nakamura | .args = "[-Cq] [-P pattern ] off len [len..]",
|
798 | 43642b38 | Devin Nakamura | .oneline = "writes a number of bytes at a specified offset",
|
799 | 43642b38 | Devin Nakamura | .help = writev_help, |
800 | 22a2bdcb | Blue Swirl | }; |
801 | 22a2bdcb | Blue Swirl | |
802 | 43642b38 | Devin Nakamura | static int writev_f(int argc, char **argv) |
803 | e3aff4f6 | aliguori | { |
804 | 43642b38 | Devin Nakamura | struct timeval t1, t2;
|
805 | 43642b38 | Devin Nakamura | int Cflag = 0, qflag = 0; |
806 | 43642b38 | Devin Nakamura | int c, cnt;
|
807 | 43642b38 | Devin Nakamura | char *buf;
|
808 | 43642b38 | Devin Nakamura | int64_t offset; |
809 | 43642b38 | Devin Nakamura | /* Some compilers get confused and warn if this is not initialized. */
|
810 | 43642b38 | Devin Nakamura | int total = 0; |
811 | 43642b38 | Devin Nakamura | int nr_iov;
|
812 | 43642b38 | Devin Nakamura | int pattern = 0xcd; |
813 | 43642b38 | Devin Nakamura | QEMUIOVector qiov; |
814 | 43642b38 | Devin Nakamura | |
815 | 43642b38 | Devin Nakamura | while ((c = getopt(argc, argv, "CqP:")) != EOF) { |
816 | 43642b38 | Devin Nakamura | switch (c) {
|
817 | 43642b38 | Devin Nakamura | case 'C': |
818 | 43642b38 | Devin Nakamura | Cflag = 1;
|
819 | 43642b38 | Devin Nakamura | break;
|
820 | 43642b38 | Devin Nakamura | case 'q': |
821 | 43642b38 | Devin Nakamura | qflag = 1;
|
822 | 43642b38 | Devin Nakamura | break;
|
823 | 43642b38 | Devin Nakamura | case 'P': |
824 | 43642b38 | Devin Nakamura | pattern = parse_pattern(optarg); |
825 | 43642b38 | Devin Nakamura | if (pattern < 0) { |
826 | 43642b38 | Devin Nakamura | return 0; |
827 | 43642b38 | Devin Nakamura | } |
828 | 43642b38 | Devin Nakamura | break;
|
829 | 43642b38 | Devin Nakamura | default:
|
830 | 43642b38 | Devin Nakamura | return command_usage(&writev_cmd);
|
831 | 43642b38 | Devin Nakamura | } |
832 | 43642b38 | Devin Nakamura | } |
833 | 43642b38 | Devin Nakamura | |
834 | 43642b38 | Devin Nakamura | if (optind > argc - 2) { |
835 | 43642b38 | Devin Nakamura | return command_usage(&writev_cmd);
|
836 | 43642b38 | Devin Nakamura | } |
837 | 43642b38 | Devin Nakamura | |
838 | 43642b38 | Devin Nakamura | offset = cvtnum(argv[optind]); |
839 | 43642b38 | Devin Nakamura | if (offset < 0) { |
840 | 43642b38 | Devin Nakamura | printf("non-numeric length argument -- %s\n", argv[optind]);
|
841 | 43642b38 | Devin Nakamura | return 0; |
842 | 43642b38 | Devin Nakamura | } |
843 | 43642b38 | Devin Nakamura | optind++; |
844 | 43642b38 | Devin Nakamura | |
845 | 43642b38 | Devin Nakamura | if (offset & 0x1ff) { |
846 | 43642b38 | Devin Nakamura | printf("offset %" PRId64 " is not sector aligned\n", |
847 | 43642b38 | Devin Nakamura | offset); |
848 | 43642b38 | Devin Nakamura | return 0; |
849 | 43642b38 | Devin Nakamura | } |
850 | 43642b38 | Devin Nakamura | |
851 | 43642b38 | Devin Nakamura | nr_iov = argc - optind; |
852 | 43642b38 | Devin Nakamura | buf = create_iovec(&qiov, &argv[optind], nr_iov, pattern); |
853 | 43642b38 | Devin Nakamura | |
854 | 43642b38 | Devin Nakamura | gettimeofday(&t1, NULL);
|
855 | 43642b38 | Devin Nakamura | cnt = do_aio_writev(&qiov, offset, &total); |
856 | 43642b38 | Devin Nakamura | gettimeofday(&t2, NULL);
|
857 | 43642b38 | Devin Nakamura | |
858 | 43642b38 | Devin Nakamura | if (cnt < 0) { |
859 | 43642b38 | Devin Nakamura | printf("writev failed: %s\n", strerror(-cnt));
|
860 | 43642b38 | Devin Nakamura | goto out;
|
861 | 43642b38 | Devin Nakamura | } |
862 | 43642b38 | Devin Nakamura | |
863 | 43642b38 | Devin Nakamura | if (qflag) {
|
864 | 43642b38 | Devin Nakamura | goto out;
|
865 | 43642b38 | Devin Nakamura | } |
866 | 43642b38 | Devin Nakamura | |
867 | 43642b38 | Devin Nakamura | /* Finally, report back -- -C gives a parsable format */
|
868 | 43642b38 | Devin Nakamura | t2 = tsub(t2, t1); |
869 | 43642b38 | Devin Nakamura | print_report("wrote", &t2, offset, qiov.size, total, cnt, Cflag);
|
870 | 7d8abfcb | Kevin Wolf | out:
|
871 | 43642b38 | Devin Nakamura | qemu_io_free(buf); |
872 | 43642b38 | Devin Nakamura | return 0; |
873 | e3aff4f6 | aliguori | } |
874 | e3aff4f6 | aliguori | |
875 | 43642b38 | Devin Nakamura | static void multiwrite_help(void) |
876 | 776cbbbd | Kevin Wolf | { |
877 | 43642b38 | Devin Nakamura | printf( |
878 | 776cbbbd | Kevin Wolf | "\n"
|
879 | 776cbbbd | Kevin Wolf | " writes a range of bytes from the given offset source from multiple buffers,\n"
|
880 | 776cbbbd | Kevin Wolf | " in a batch of requests that may be merged by qemu\n"
|
881 | 776cbbbd | Kevin Wolf | "\n"
|
882 | 776cbbbd | Kevin Wolf | " Example:\n"
|
883 | 776cbbbd | Kevin Wolf | " 'multiwrite 512 1k 1k ; 4k 1k' \n"
|
884 | 776cbbbd | Kevin Wolf | " writes 2 kB at 512 bytes and 1 kB at 4 kB into the open file\n"
|
885 | 776cbbbd | Kevin Wolf | "\n"
|
886 | 776cbbbd | Kevin Wolf | " Writes into a segment of the currently open file, using a buffer\n"
|
887 | 776cbbbd | Kevin Wolf | " filled with a set pattern (0xcdcdcdcd). The pattern byte is increased\n"
|
888 | 776cbbbd | Kevin Wolf | " by one for each request contained in the multiwrite command.\n"
|
889 | 776cbbbd | Kevin Wolf | " -P, -- use different pattern to fill file\n"
|
890 | 776cbbbd | Kevin Wolf | " -C, -- report statistics in a machine parsable format\n"
|
891 | 776cbbbd | Kevin Wolf | " -q, -- quiet mode, do not show I/O statistics\n"
|
892 | 776cbbbd | Kevin Wolf | "\n");
|
893 | 776cbbbd | Kevin Wolf | } |
894 | 776cbbbd | Kevin Wolf | |
895 | 776cbbbd | Kevin Wolf | static int multiwrite_f(int argc, char **argv); |
896 | 776cbbbd | Kevin Wolf | |
897 | 776cbbbd | Kevin Wolf | static const cmdinfo_t multiwrite_cmd = { |
898 | 43642b38 | Devin Nakamura | .name = "multiwrite",
|
899 | 43642b38 | Devin Nakamura | .cfunc = multiwrite_f, |
900 | 43642b38 | Devin Nakamura | .argmin = 2,
|
901 | 43642b38 | Devin Nakamura | .argmax = -1,
|
902 | 43642b38 | Devin Nakamura | .args = "[-Cq] [-P pattern ] off len [len..] [; off len [len..]..]",
|
903 | 43642b38 | Devin Nakamura | .oneline = "issues multiple write requests at once",
|
904 | 43642b38 | Devin Nakamura | .help = multiwrite_help, |
905 | 776cbbbd | Kevin Wolf | }; |
906 | 776cbbbd | Kevin Wolf | |
907 | 43642b38 | Devin Nakamura | static int multiwrite_f(int argc, char **argv) |
908 | 776cbbbd | Kevin Wolf | { |
909 | 43642b38 | Devin Nakamura | struct timeval t1, t2;
|
910 | 43642b38 | Devin Nakamura | int Cflag = 0, qflag = 0; |
911 | 43642b38 | Devin Nakamura | int c, cnt;
|
912 | 43642b38 | Devin Nakamura | char **buf;
|
913 | 43642b38 | Devin Nakamura | int64_t offset, first_offset = 0;
|
914 | 43642b38 | Devin Nakamura | /* Some compilers get confused and warn if this is not initialized. */
|
915 | 43642b38 | Devin Nakamura | int total = 0; |
916 | 43642b38 | Devin Nakamura | int nr_iov;
|
917 | 43642b38 | Devin Nakamura | int nr_reqs;
|
918 | 43642b38 | Devin Nakamura | int pattern = 0xcd; |
919 | 43642b38 | Devin Nakamura | QEMUIOVector *qiovs; |
920 | 43642b38 | Devin Nakamura | int i;
|
921 | 43642b38 | Devin Nakamura | BlockRequest *reqs; |
922 | 43642b38 | Devin Nakamura | |
923 | 43642b38 | Devin Nakamura | while ((c = getopt(argc, argv, "CqP:")) != EOF) { |
924 | 43642b38 | Devin Nakamura | switch (c) {
|
925 | 43642b38 | Devin Nakamura | case 'C': |
926 | 43642b38 | Devin Nakamura | Cflag = 1;
|
927 | 43642b38 | Devin Nakamura | break;
|
928 | 43642b38 | Devin Nakamura | case 'q': |
929 | 43642b38 | Devin Nakamura | qflag = 1;
|
930 | 43642b38 | Devin Nakamura | break;
|
931 | 43642b38 | Devin Nakamura | case 'P': |
932 | 43642b38 | Devin Nakamura | pattern = parse_pattern(optarg); |
933 | 43642b38 | Devin Nakamura | if (pattern < 0) { |
934 | 43642b38 | Devin Nakamura | return 0; |
935 | 43642b38 | Devin Nakamura | } |
936 | 43642b38 | Devin Nakamura | break;
|
937 | 43642b38 | Devin Nakamura | default:
|
938 | 43642b38 | Devin Nakamura | return command_usage(&writev_cmd);
|
939 | 43642b38 | Devin Nakamura | } |
940 | 43642b38 | Devin Nakamura | } |
941 | 43642b38 | Devin Nakamura | |
942 | 43642b38 | Devin Nakamura | if (optind > argc - 2) { |
943 | 43642b38 | Devin Nakamura | return command_usage(&writev_cmd);
|
944 | 43642b38 | Devin Nakamura | } |
945 | 43642b38 | Devin Nakamura | |
946 | 43642b38 | Devin Nakamura | nr_reqs = 1;
|
947 | 43642b38 | Devin Nakamura | for (i = optind; i < argc; i++) {
|
948 | 43642b38 | Devin Nakamura | if (!strcmp(argv[i], ";")) { |
949 | 43642b38 | Devin Nakamura | nr_reqs++; |
950 | 43642b38 | Devin Nakamura | } |
951 | 43642b38 | Devin Nakamura | } |
952 | 43642b38 | Devin Nakamura | |
953 | 7267c094 | Anthony Liguori | reqs = g_malloc(nr_reqs * sizeof(*reqs));
|
954 | 7267c094 | Anthony Liguori | buf = g_malloc(nr_reqs * sizeof(*buf));
|
955 | 7267c094 | Anthony Liguori | qiovs = g_malloc(nr_reqs * sizeof(*qiovs));
|
956 | 43642b38 | Devin Nakamura | |
957 | 43642b38 | Devin Nakamura | for (i = 0; i < nr_reqs; i++) { |
958 | 43642b38 | Devin Nakamura | int j;
|
959 | 43642b38 | Devin Nakamura | |
960 | 43642b38 | Devin Nakamura | /* Read the offset of the request */
|
961 | 43642b38 | Devin Nakamura | offset = cvtnum(argv[optind]); |
962 | 43642b38 | Devin Nakamura | if (offset < 0) { |
963 | 43642b38 | Devin Nakamura | printf("non-numeric offset argument -- %s\n", argv[optind]);
|
964 | 43642b38 | Devin Nakamura | return 0; |
965 | 43642b38 | Devin Nakamura | } |
966 | 43642b38 | Devin Nakamura | optind++; |
967 | 43642b38 | Devin Nakamura | |
968 | 43642b38 | Devin Nakamura | if (offset & 0x1ff) { |
969 | 43642b38 | Devin Nakamura | printf("offset %lld is not sector aligned\n",
|
970 | 43642b38 | Devin Nakamura | (long long)offset); |
971 | 43642b38 | Devin Nakamura | return 0; |
972 | 43642b38 | Devin Nakamura | } |
973 | 776cbbbd | Kevin Wolf | |
974 | 776cbbbd | Kevin Wolf | if (i == 0) { |
975 | 776cbbbd | Kevin Wolf | first_offset = offset; |
976 | 776cbbbd | Kevin Wolf | } |
977 | 776cbbbd | Kevin Wolf | |
978 | 43642b38 | Devin Nakamura | /* Read lengths for qiov entries */
|
979 | 43642b38 | Devin Nakamura | for (j = optind; j < argc; j++) {
|
980 | 43642b38 | Devin Nakamura | if (!strcmp(argv[j], ";")) { |
981 | 43642b38 | Devin Nakamura | break;
|
982 | 43642b38 | Devin Nakamura | } |
983 | 43642b38 | Devin Nakamura | } |
984 | 776cbbbd | Kevin Wolf | |
985 | 43642b38 | Devin Nakamura | nr_iov = j - optind; |
986 | 776cbbbd | Kevin Wolf | |
987 | 43642b38 | Devin Nakamura | /* Build request */
|
988 | 43642b38 | Devin Nakamura | reqs[i].qiov = &qiovs[i]; |
989 | 43642b38 | Devin Nakamura | buf[i] = create_iovec(reqs[i].qiov, &argv[optind], nr_iov, pattern); |
990 | 43642b38 | Devin Nakamura | reqs[i].sector = offset >> 9;
|
991 | 43642b38 | Devin Nakamura | reqs[i].nb_sectors = reqs[i].qiov->size >> 9;
|
992 | 776cbbbd | Kevin Wolf | |
993 | 43642b38 | Devin Nakamura | optind = j + 1;
|
994 | 776cbbbd | Kevin Wolf | |
995 | 43642b38 | Devin Nakamura | pattern++; |
996 | 43642b38 | Devin Nakamura | } |
997 | 776cbbbd | Kevin Wolf | |
998 | 43642b38 | Devin Nakamura | gettimeofday(&t1, NULL);
|
999 | 43642b38 | Devin Nakamura | cnt = do_aio_multiwrite(reqs, nr_reqs, &total); |
1000 | 43642b38 | Devin Nakamura | gettimeofday(&t2, NULL);
|
1001 | 776cbbbd | Kevin Wolf | |
1002 | 43642b38 | Devin Nakamura | if (cnt < 0) { |
1003 | 43642b38 | Devin Nakamura | printf("aio_multiwrite failed: %s\n", strerror(-cnt));
|
1004 | 43642b38 | Devin Nakamura | goto out;
|
1005 | 43642b38 | Devin Nakamura | } |
1006 | 776cbbbd | Kevin Wolf | |
1007 | 43642b38 | Devin Nakamura | if (qflag) {
|
1008 | 43642b38 | Devin Nakamura | goto out;
|
1009 | 43642b38 | Devin Nakamura | } |
1010 | 776cbbbd | Kevin Wolf | |
1011 | 43642b38 | Devin Nakamura | /* Finally, report back -- -C gives a parsable format */
|
1012 | 43642b38 | Devin Nakamura | t2 = tsub(t2, t1); |
1013 | 43642b38 | Devin Nakamura | print_report("wrote", &t2, first_offset, total, total, cnt, Cflag);
|
1014 | 776cbbbd | Kevin Wolf | out:
|
1015 | 43642b38 | Devin Nakamura | for (i = 0; i < nr_reqs; i++) { |
1016 | 43642b38 | Devin Nakamura | qemu_io_free(buf[i]); |
1017 | 43642b38 | Devin Nakamura | qemu_iovec_destroy(&qiovs[i]); |
1018 | 43642b38 | Devin Nakamura | } |
1019 | 7267c094 | Anthony Liguori | g_free(buf); |
1020 | 7267c094 | Anthony Liguori | g_free(reqs); |
1021 | 7267c094 | Anthony Liguori | g_free(qiovs); |
1022 | 43642b38 | Devin Nakamura | return 0; |
1023 | 776cbbbd | Kevin Wolf | } |
1024 | 776cbbbd | Kevin Wolf | |
1025 | 95533d5f | Christoph Hellwig | struct aio_ctx {
|
1026 | 43642b38 | Devin Nakamura | QEMUIOVector qiov; |
1027 | 43642b38 | Devin Nakamura | int64_t offset; |
1028 | 43642b38 | Devin Nakamura | char *buf;
|
1029 | 43642b38 | Devin Nakamura | int qflag;
|
1030 | 43642b38 | Devin Nakamura | int vflag;
|
1031 | 43642b38 | Devin Nakamura | int Cflag;
|
1032 | 43642b38 | Devin Nakamura | int Pflag;
|
1033 | 43642b38 | Devin Nakamura | int pattern;
|
1034 | 43642b38 | Devin Nakamura | struct timeval t1;
|
1035 | 95533d5f | Christoph Hellwig | }; |
1036 | 95533d5f | Christoph Hellwig | |
1037 | 43642b38 | Devin Nakamura | static void aio_write_done(void *opaque, int ret) |
1038 | 95533d5f | Christoph Hellwig | { |
1039 | 43642b38 | Devin Nakamura | struct aio_ctx *ctx = opaque;
|
1040 | 43642b38 | Devin Nakamura | struct timeval t2;
|
1041 | 95533d5f | Christoph Hellwig | |
1042 | 43642b38 | Devin Nakamura | gettimeofday(&t2, NULL);
|
1043 | 95533d5f | Christoph Hellwig | |
1044 | 95533d5f | Christoph Hellwig | |
1045 | 43642b38 | Devin Nakamura | if (ret < 0) { |
1046 | 43642b38 | Devin Nakamura | printf("aio_write failed: %s\n", strerror(-ret));
|
1047 | 43642b38 | Devin Nakamura | goto out;
|
1048 | 43642b38 | Devin Nakamura | } |
1049 | 95533d5f | Christoph Hellwig | |
1050 | 43642b38 | Devin Nakamura | if (ctx->qflag) {
|
1051 | 43642b38 | Devin Nakamura | goto out;
|
1052 | 43642b38 | Devin Nakamura | } |
1053 | 95533d5f | Christoph Hellwig | |
1054 | 43642b38 | Devin Nakamura | /* Finally, report back -- -C gives a parsable format */
|
1055 | 43642b38 | Devin Nakamura | t2 = tsub(t2, ctx->t1); |
1056 | 43642b38 | Devin Nakamura | print_report("wrote", &t2, ctx->offset, ctx->qiov.size,
|
1057 | 43642b38 | Devin Nakamura | ctx->qiov.size, 1, ctx->Cflag);
|
1058 | 7d8abfcb | Kevin Wolf | out:
|
1059 | 43642b38 | Devin Nakamura | qemu_io_free(ctx->buf); |
1060 | 43642b38 | Devin Nakamura | free(ctx); |
1061 | 95533d5f | Christoph Hellwig | } |
1062 | 95533d5f | Christoph Hellwig | |
1063 | 43642b38 | Devin Nakamura | static void aio_read_done(void *opaque, int ret) |
1064 | 95533d5f | Christoph Hellwig | { |
1065 | 43642b38 | Devin Nakamura | struct aio_ctx *ctx = opaque;
|
1066 | 43642b38 | Devin Nakamura | struct timeval t2;
|
1067 | 43642b38 | Devin Nakamura | |
1068 | 43642b38 | Devin Nakamura | gettimeofday(&t2, NULL);
|
1069 | 43642b38 | Devin Nakamura | |
1070 | 43642b38 | Devin Nakamura | if (ret < 0) { |
1071 | 43642b38 | Devin Nakamura | printf("readv failed: %s\n", strerror(-ret));
|
1072 | 43642b38 | Devin Nakamura | goto out;
|
1073 | 43642b38 | Devin Nakamura | } |
1074 | 43642b38 | Devin Nakamura | |
1075 | 43642b38 | Devin Nakamura | if (ctx->Pflag) {
|
1076 | 43642b38 | Devin Nakamura | void *cmp_buf = malloc(ctx->qiov.size);
|
1077 | 43642b38 | Devin Nakamura | |
1078 | 43642b38 | Devin Nakamura | memset(cmp_buf, ctx->pattern, ctx->qiov.size); |
1079 | 43642b38 | Devin Nakamura | if (memcmp(ctx->buf, cmp_buf, ctx->qiov.size)) {
|
1080 | 43642b38 | Devin Nakamura | printf("Pattern verification failed at offset %"
|
1081 | 43642b38 | Devin Nakamura | PRId64 ", %zd bytes\n", ctx->offset, ctx->qiov.size);
|
1082 | 43642b38 | Devin Nakamura | } |
1083 | 43642b38 | Devin Nakamura | free(cmp_buf); |
1084 | 43642b38 | Devin Nakamura | } |
1085 | 43642b38 | Devin Nakamura | |
1086 | 43642b38 | Devin Nakamura | if (ctx->qflag) {
|
1087 | 43642b38 | Devin Nakamura | goto out;
|
1088 | 43642b38 | Devin Nakamura | } |
1089 | 43642b38 | Devin Nakamura | |
1090 | 43642b38 | Devin Nakamura | if (ctx->vflag) {
|
1091 | 43642b38 | Devin Nakamura | dump_buffer(ctx->buf, ctx->offset, ctx->qiov.size); |
1092 | 43642b38 | Devin Nakamura | } |
1093 | 43642b38 | Devin Nakamura | |
1094 | 43642b38 | Devin Nakamura | /* Finally, report back -- -C gives a parsable format */
|
1095 | 43642b38 | Devin Nakamura | t2 = tsub(t2, ctx->t1); |
1096 | 43642b38 | Devin Nakamura | print_report("read", &t2, ctx->offset, ctx->qiov.size,
|
1097 | 43642b38 | Devin Nakamura | ctx->qiov.size, 1, ctx->Cflag);
|
1098 | 7d8abfcb | Kevin Wolf | out:
|
1099 | 43642b38 | Devin Nakamura | qemu_io_free(ctx->buf); |
1100 | 43642b38 | Devin Nakamura | free(ctx); |
1101 | 95533d5f | Christoph Hellwig | } |
1102 | 95533d5f | Christoph Hellwig | |
1103 | 43642b38 | Devin Nakamura | static void aio_read_help(void) |
1104 | 95533d5f | Christoph Hellwig | { |
1105 | 43642b38 | Devin Nakamura | printf( |
1106 | 95533d5f | Christoph Hellwig | "\n"
|
1107 | 95533d5f | Christoph Hellwig | " asynchronously reads a range of bytes from the given offset\n"
|
1108 | 95533d5f | Christoph Hellwig | "\n"
|
1109 | 95533d5f | Christoph Hellwig | " Example:\n"
|
1110 | 95533d5f | Christoph Hellwig | " 'aio_read -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n"
|
1111 | 95533d5f | Christoph Hellwig | "\n"
|
1112 | 95533d5f | Christoph Hellwig | " Reads a segment of the currently open file, optionally dumping it to the\n"
|
1113 | 95533d5f | Christoph Hellwig | " standard output stream (with -v option) for subsequent inspection.\n"
|
1114 | e432cef9 | Christoph Hellwig | " The read is performed asynchronously and the aio_flush command must be\n"
|
1115 | e432cef9 | Christoph Hellwig | " used to ensure all outstanding aio requests have been completed\n"
|
1116 | 95533d5f | Christoph Hellwig | " -C, -- report statistics in a machine parsable format\n"
|
1117 | 95533d5f | Christoph Hellwig | " -P, -- use a pattern to verify read data\n"
|
1118 | 95533d5f | Christoph Hellwig | " -v, -- dump buffer to standard output\n"
|
1119 | 095343ad | Kevin Wolf | " -q, -- quiet mode, do not show I/O statistics\n"
|
1120 | 95533d5f | Christoph Hellwig | "\n");
|
1121 | 95533d5f | Christoph Hellwig | } |
1122 | 95533d5f | Christoph Hellwig | |
1123 | 22a2bdcb | Blue Swirl | static int aio_read_f(int argc, char **argv); |
1124 | 22a2bdcb | Blue Swirl | |
1125 | 22a2bdcb | Blue Swirl | static const cmdinfo_t aio_read_cmd = { |
1126 | 43642b38 | Devin Nakamura | .name = "aio_read",
|
1127 | 43642b38 | Devin Nakamura | .cfunc = aio_read_f, |
1128 | 43642b38 | Devin Nakamura | .argmin = 2,
|
1129 | 43642b38 | Devin Nakamura | .argmax = -1,
|
1130 | 43642b38 | Devin Nakamura | .args = "[-Cqv] [-P pattern ] off len [len..]",
|
1131 | 43642b38 | Devin Nakamura | .oneline = "asynchronously reads a number of bytes",
|
1132 | 43642b38 | Devin Nakamura | .help = aio_read_help, |
1133 | 22a2bdcb | Blue Swirl | }; |
1134 | 22a2bdcb | Blue Swirl | |
1135 | 43642b38 | Devin Nakamura | static int aio_read_f(int argc, char **argv) |
1136 | 95533d5f | Christoph Hellwig | { |
1137 | 43642b38 | Devin Nakamura | int nr_iov, c;
|
1138 | 43642b38 | Devin Nakamura | struct aio_ctx *ctx = calloc(1, sizeof(struct aio_ctx)); |
1139 | 43642b38 | Devin Nakamura | BlockDriverAIOCB *acb; |
1140 | 43642b38 | Devin Nakamura | |
1141 | 43642b38 | Devin Nakamura | while ((c = getopt(argc, argv, "CP:qv")) != EOF) { |
1142 | 43642b38 | Devin Nakamura | switch (c) {
|
1143 | 43642b38 | Devin Nakamura | case 'C': |
1144 | 43642b38 | Devin Nakamura | ctx->Cflag = 1;
|
1145 | 43642b38 | Devin Nakamura | break;
|
1146 | 43642b38 | Devin Nakamura | case 'P': |
1147 | 43642b38 | Devin Nakamura | ctx->Pflag = 1;
|
1148 | 43642b38 | Devin Nakamura | ctx->pattern = parse_pattern(optarg); |
1149 | 43642b38 | Devin Nakamura | if (ctx->pattern < 0) { |
1150 | 43642b38 | Devin Nakamura | free(ctx); |
1151 | 43642b38 | Devin Nakamura | return 0; |
1152 | 43642b38 | Devin Nakamura | } |
1153 | 43642b38 | Devin Nakamura | break;
|
1154 | 43642b38 | Devin Nakamura | case 'q': |
1155 | 43642b38 | Devin Nakamura | ctx->qflag = 1;
|
1156 | 43642b38 | Devin Nakamura | break;
|
1157 | 43642b38 | Devin Nakamura | case 'v': |
1158 | 43642b38 | Devin Nakamura | ctx->vflag = 1;
|
1159 | 43642b38 | Devin Nakamura | break;
|
1160 | 43642b38 | Devin Nakamura | default:
|
1161 | 43642b38 | Devin Nakamura | free(ctx); |
1162 | 43642b38 | Devin Nakamura | return command_usage(&aio_read_cmd);
|
1163 | 43642b38 | Devin Nakamura | } |
1164 | 43642b38 | Devin Nakamura | } |
1165 | 43642b38 | Devin Nakamura | |
1166 | 43642b38 | Devin Nakamura | if (optind > argc - 2) { |
1167 | 43642b38 | Devin Nakamura | free(ctx); |
1168 | 43642b38 | Devin Nakamura | return command_usage(&aio_read_cmd);
|
1169 | 43642b38 | Devin Nakamura | } |
1170 | 43642b38 | Devin Nakamura | |
1171 | 43642b38 | Devin Nakamura | ctx->offset = cvtnum(argv[optind]); |
1172 | 43642b38 | Devin Nakamura | if (ctx->offset < 0) { |
1173 | 43642b38 | Devin Nakamura | printf("non-numeric length argument -- %s\n", argv[optind]);
|
1174 | 43642b38 | Devin Nakamura | free(ctx); |
1175 | 43642b38 | Devin Nakamura | return 0; |
1176 | 43642b38 | Devin Nakamura | } |
1177 | 43642b38 | Devin Nakamura | optind++; |
1178 | 43642b38 | Devin Nakamura | |
1179 | 43642b38 | Devin Nakamura | if (ctx->offset & 0x1ff) { |
1180 | 43642b38 | Devin Nakamura | printf("offset %" PRId64 " is not sector aligned\n", |
1181 | 43642b38 | Devin Nakamura | ctx->offset); |
1182 | 43642b38 | Devin Nakamura | free(ctx); |
1183 | 43642b38 | Devin Nakamura | return 0; |
1184 | 43642b38 | Devin Nakamura | } |
1185 | 43642b38 | Devin Nakamura | |
1186 | 43642b38 | Devin Nakamura | nr_iov = argc - optind; |
1187 | 43642b38 | Devin Nakamura | ctx->buf = create_iovec(&ctx->qiov, &argv[optind], nr_iov, 0xab);
|
1188 | 43642b38 | Devin Nakamura | |
1189 | 43642b38 | Devin Nakamura | gettimeofday(&ctx->t1, NULL);
|
1190 | 43642b38 | Devin Nakamura | acb = bdrv_aio_readv(bs, ctx->offset >> 9, &ctx->qiov,
|
1191 | 43642b38 | Devin Nakamura | ctx->qiov.size >> 9, aio_read_done, ctx);
|
1192 | 43642b38 | Devin Nakamura | if (!acb) {
|
1193 | 43642b38 | Devin Nakamura | free(ctx->buf); |
1194 | 43642b38 | Devin Nakamura | free(ctx); |
1195 | 43642b38 | Devin Nakamura | return -EIO;
|
1196 | 43642b38 | Devin Nakamura | } |
1197 | 43642b38 | Devin Nakamura | |
1198 | 43642b38 | Devin Nakamura | return 0; |
1199 | 95533d5f | Christoph Hellwig | } |
1200 | 95533d5f | Christoph Hellwig | |
1201 | 43642b38 | Devin Nakamura | static void aio_write_help(void) |
1202 | 95533d5f | Christoph Hellwig | { |
1203 | 43642b38 | Devin Nakamura | printf( |
1204 | 95533d5f | Christoph Hellwig | "\n"
|
1205 | 43642b38 | Devin Nakamura | " asynchronously writes a range of bytes from the given offset source\n"
|
1206 | 95533d5f | Christoph Hellwig | " from multiple buffers\n"
|
1207 | 95533d5f | Christoph Hellwig | "\n"
|
1208 | 95533d5f | Christoph Hellwig | " Example:\n"
|
1209 | 95533d5f | Christoph Hellwig | " 'aio_write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n"
|
1210 | 95533d5f | Christoph Hellwig | "\n"
|
1211 | 95533d5f | Christoph Hellwig | " Writes into a segment of the currently open file, using a buffer\n"
|
1212 | 95533d5f | Christoph Hellwig | " filled with a set pattern (0xcdcdcdcd).\n"
|
1213 | e432cef9 | Christoph Hellwig | " The write is performed asynchronously and the aio_flush command must be\n"
|
1214 | e432cef9 | Christoph Hellwig | " used to ensure all outstanding aio requests have been completed\n"
|
1215 | 95533d5f | Christoph Hellwig | " -P, -- use different pattern to fill file\n"
|
1216 | 95533d5f | Christoph Hellwig | " -C, -- report statistics in a machine parsable format\n"
|
1217 | 095343ad | Kevin Wolf | " -q, -- quiet mode, do not show I/O statistics\n"
|
1218 | 95533d5f | Christoph Hellwig | "\n");
|
1219 | 95533d5f | Christoph Hellwig | } |
1220 | 95533d5f | Christoph Hellwig | |
1221 | 22a2bdcb | Blue Swirl | static int aio_write_f(int argc, char **argv); |
1222 | 22a2bdcb | Blue Swirl | |
1223 | 22a2bdcb | Blue Swirl | static const cmdinfo_t aio_write_cmd = { |
1224 | 43642b38 | Devin Nakamura | .name = "aio_write",
|
1225 | 43642b38 | Devin Nakamura | .cfunc = aio_write_f, |
1226 | 43642b38 | Devin Nakamura | .argmin = 2,
|
1227 | 43642b38 | Devin Nakamura | .argmax = -1,
|
1228 | 43642b38 | Devin Nakamura | .args = "[-Cq] [-P pattern ] off len [len..]",
|
1229 | 43642b38 | Devin Nakamura | .oneline = "asynchronously writes a number of bytes",
|
1230 | 43642b38 | Devin Nakamura | .help = aio_write_help, |
1231 | 22a2bdcb | Blue Swirl | }; |
1232 | 95533d5f | Christoph Hellwig | |
1233 | 43642b38 | Devin Nakamura | static int aio_write_f(int argc, char **argv) |
1234 | 95533d5f | Christoph Hellwig | { |
1235 | 43642b38 | Devin Nakamura | int nr_iov, c;
|
1236 | 43642b38 | Devin Nakamura | int pattern = 0xcd; |
1237 | 43642b38 | Devin Nakamura | struct aio_ctx *ctx = calloc(1, sizeof(struct aio_ctx)); |
1238 | 43642b38 | Devin Nakamura | BlockDriverAIOCB *acb; |
1239 | 43642b38 | Devin Nakamura | |
1240 | 43642b38 | Devin Nakamura | while ((c = getopt(argc, argv, "CqP:")) != EOF) { |
1241 | 43642b38 | Devin Nakamura | switch (c) {
|
1242 | 43642b38 | Devin Nakamura | case 'C': |
1243 | 43642b38 | Devin Nakamura | ctx->Cflag = 1;
|
1244 | 43642b38 | Devin Nakamura | break;
|
1245 | 43642b38 | Devin Nakamura | case 'q': |
1246 | 43642b38 | Devin Nakamura | ctx->qflag = 1;
|
1247 | 43642b38 | Devin Nakamura | break;
|
1248 | 43642b38 | Devin Nakamura | case 'P': |
1249 | 43642b38 | Devin Nakamura | pattern = parse_pattern(optarg); |
1250 | 43642b38 | Devin Nakamura | if (pattern < 0) { |
1251 | 43642b38 | Devin Nakamura | return 0; |
1252 | 43642b38 | Devin Nakamura | } |
1253 | 43642b38 | Devin Nakamura | break;
|
1254 | 43642b38 | Devin Nakamura | default:
|
1255 | 43642b38 | Devin Nakamura | free(ctx); |
1256 | 43642b38 | Devin Nakamura | return command_usage(&aio_write_cmd);
|
1257 | 43642b38 | Devin Nakamura | } |
1258 | 43642b38 | Devin Nakamura | } |
1259 | 43642b38 | Devin Nakamura | |
1260 | 43642b38 | Devin Nakamura | if (optind > argc - 2) { |
1261 | 43642b38 | Devin Nakamura | free(ctx); |
1262 | 43642b38 | Devin Nakamura | return command_usage(&aio_write_cmd);
|
1263 | 43642b38 | Devin Nakamura | } |
1264 | 43642b38 | Devin Nakamura | |
1265 | 43642b38 | Devin Nakamura | ctx->offset = cvtnum(argv[optind]); |
1266 | 43642b38 | Devin Nakamura | if (ctx->offset < 0) { |
1267 | 43642b38 | Devin Nakamura | printf("non-numeric length argument -- %s\n", argv[optind]);
|
1268 | 43642b38 | Devin Nakamura | free(ctx); |
1269 | 43642b38 | Devin Nakamura | return 0; |
1270 | 43642b38 | Devin Nakamura | } |
1271 | 43642b38 | Devin Nakamura | optind++; |
1272 | 43642b38 | Devin Nakamura | |
1273 | 43642b38 | Devin Nakamura | if (ctx->offset & 0x1ff) { |
1274 | 43642b38 | Devin Nakamura | printf("offset %" PRId64 " is not sector aligned\n", |
1275 | 43642b38 | Devin Nakamura | ctx->offset); |
1276 | 43642b38 | Devin Nakamura | free(ctx); |
1277 | 43642b38 | Devin Nakamura | return 0; |
1278 | 43642b38 | Devin Nakamura | } |
1279 | 43642b38 | Devin Nakamura | |
1280 | 43642b38 | Devin Nakamura | nr_iov = argc - optind; |
1281 | 43642b38 | Devin Nakamura | ctx->buf = create_iovec(&ctx->qiov, &argv[optind], nr_iov, pattern); |
1282 | 43642b38 | Devin Nakamura | |
1283 | 43642b38 | Devin Nakamura | gettimeofday(&ctx->t1, NULL);
|
1284 | 43642b38 | Devin Nakamura | acb = bdrv_aio_writev(bs, ctx->offset >> 9, &ctx->qiov,
|
1285 | 43642b38 | Devin Nakamura | ctx->qiov.size >> 9, aio_write_done, ctx);
|
1286 | 43642b38 | Devin Nakamura | if (!acb) {
|
1287 | 43642b38 | Devin Nakamura | free(ctx->buf); |
1288 | 43642b38 | Devin Nakamura | free(ctx); |
1289 | 43642b38 | Devin Nakamura | return -EIO;
|
1290 | 43642b38 | Devin Nakamura | } |
1291 | 43642b38 | Devin Nakamura | |
1292 | 43642b38 | Devin Nakamura | return 0; |
1293 | 95533d5f | Christoph Hellwig | } |
1294 | 95533d5f | Christoph Hellwig | |
1295 | 43642b38 | Devin Nakamura | static int aio_flush_f(int argc, char **argv) |
1296 | 95533d5f | Christoph Hellwig | { |
1297 | 43642b38 | Devin Nakamura | qemu_aio_flush(); |
1298 | 43642b38 | Devin Nakamura | return 0; |
1299 | 95533d5f | Christoph Hellwig | } |
1300 | 95533d5f | Christoph Hellwig | |
1301 | 95533d5f | Christoph Hellwig | static const cmdinfo_t aio_flush_cmd = { |
1302 | 43642b38 | Devin Nakamura | .name = "aio_flush",
|
1303 | 43642b38 | Devin Nakamura | .cfunc = aio_flush_f, |
1304 | 43642b38 | Devin Nakamura | .oneline = "completes all outstanding aio requests"
|
1305 | 95533d5f | Christoph Hellwig | }; |
1306 | 95533d5f | Christoph Hellwig | |
1307 | 43642b38 | Devin Nakamura | static int flush_f(int argc, char **argv) |
1308 | e3aff4f6 | aliguori | { |
1309 | 43642b38 | Devin Nakamura | bdrv_flush(bs); |
1310 | 43642b38 | Devin Nakamura | return 0; |
1311 | e3aff4f6 | aliguori | } |
1312 | e3aff4f6 | aliguori | |
1313 | e3aff4f6 | aliguori | static const cmdinfo_t flush_cmd = { |
1314 | 43642b38 | Devin Nakamura | .name = "flush",
|
1315 | 43642b38 | Devin Nakamura | .altname = "f",
|
1316 | 43642b38 | Devin Nakamura | .cfunc = flush_f, |
1317 | 43642b38 | Devin Nakamura | .oneline = "flush all in-core file state to disk",
|
1318 | e3aff4f6 | aliguori | }; |
1319 | e3aff4f6 | aliguori | |
1320 | 43642b38 | Devin Nakamura | static int truncate_f(int argc, char **argv) |
1321 | e3aff4f6 | aliguori | { |
1322 | 43642b38 | Devin Nakamura | int64_t offset; |
1323 | 43642b38 | Devin Nakamura | int ret;
|
1324 | 43642b38 | Devin Nakamura | |
1325 | 43642b38 | Devin Nakamura | offset = cvtnum(argv[1]);
|
1326 | 43642b38 | Devin Nakamura | if (offset < 0) { |
1327 | 43642b38 | Devin Nakamura | printf("non-numeric truncate argument -- %s\n", argv[1]); |
1328 | 43642b38 | Devin Nakamura | return 0; |
1329 | 43642b38 | Devin Nakamura | } |
1330 | 43642b38 | Devin Nakamura | |
1331 | 43642b38 | Devin Nakamura | ret = bdrv_truncate(bs, offset); |
1332 | 43642b38 | Devin Nakamura | if (ret < 0) { |
1333 | 43642b38 | Devin Nakamura | printf("truncate: %s\n", strerror(-ret));
|
1334 | 43642b38 | Devin Nakamura | return 0; |
1335 | 43642b38 | Devin Nakamura | } |
1336 | 43642b38 | Devin Nakamura | |
1337 | 43642b38 | Devin Nakamura | return 0; |
1338 | e3aff4f6 | aliguori | } |
1339 | e3aff4f6 | aliguori | |
1340 | e3aff4f6 | aliguori | static const cmdinfo_t truncate_cmd = { |
1341 | 43642b38 | Devin Nakamura | .name = "truncate",
|
1342 | 43642b38 | Devin Nakamura | .altname = "t",
|
1343 | 43642b38 | Devin Nakamura | .cfunc = truncate_f, |
1344 | 43642b38 | Devin Nakamura | .argmin = 1,
|
1345 | 43642b38 | Devin Nakamura | .argmax = 1,
|
1346 | 43642b38 | Devin Nakamura | .args = "off",
|
1347 | 43642b38 | Devin Nakamura | .oneline = "truncates the current file at the given offset",
|
1348 | e3aff4f6 | aliguori | }; |
1349 | e3aff4f6 | aliguori | |
1350 | 43642b38 | Devin Nakamura | static int length_f(int argc, char **argv) |
1351 | e3aff4f6 | aliguori | { |
1352 | 43642b38 | Devin Nakamura | int64_t size; |
1353 | 43642b38 | Devin Nakamura | char s1[64]; |
1354 | 43642b38 | Devin Nakamura | |
1355 | 43642b38 | Devin Nakamura | size = bdrv_getlength(bs); |
1356 | 43642b38 | Devin Nakamura | if (size < 0) { |
1357 | 43642b38 | Devin Nakamura | printf("getlength: %s\n", strerror(-size));
|
1358 | 43642b38 | Devin Nakamura | return 0; |
1359 | 43642b38 | Devin Nakamura | } |
1360 | 43642b38 | Devin Nakamura | |
1361 | 43642b38 | Devin Nakamura | cvtstr(size, s1, sizeof(s1));
|
1362 | 43642b38 | Devin Nakamura | printf("%s\n", s1);
|
1363 | 43642b38 | Devin Nakamura | return 0; |
1364 | e3aff4f6 | aliguori | } |
1365 | e3aff4f6 | aliguori | |
1366 | e3aff4f6 | aliguori | |
1367 | e3aff4f6 | aliguori | static const cmdinfo_t length_cmd = { |
1368 | 43642b38 | Devin Nakamura | .name = "length",
|
1369 | 43642b38 | Devin Nakamura | .altname = "l",
|
1370 | 43642b38 | Devin Nakamura | .cfunc = length_f, |
1371 | 43642b38 | Devin Nakamura | .oneline = "gets the length of the current file",
|
1372 | e3aff4f6 | aliguori | }; |
1373 | e3aff4f6 | aliguori | |
1374 | e3aff4f6 | aliguori | |
1375 | 43642b38 | Devin Nakamura | static int info_f(int argc, char **argv) |
1376 | e3aff4f6 | aliguori | { |
1377 | 43642b38 | Devin Nakamura | BlockDriverInfo bdi; |
1378 | 43642b38 | Devin Nakamura | char s1[64], s2[64]; |
1379 | 43642b38 | Devin Nakamura | int ret;
|
1380 | e3aff4f6 | aliguori | |
1381 | 43642b38 | Devin Nakamura | if (bs->drv && bs->drv->format_name) {
|
1382 | 43642b38 | Devin Nakamura | printf("format name: %s\n", bs->drv->format_name);
|
1383 | 43642b38 | Devin Nakamura | } |
1384 | 43642b38 | Devin Nakamura | if (bs->drv && bs->drv->protocol_name) {
|
1385 | 43642b38 | Devin Nakamura | printf("format name: %s\n", bs->drv->protocol_name);
|
1386 | 43642b38 | Devin Nakamura | } |
1387 | e3aff4f6 | aliguori | |
1388 | 43642b38 | Devin Nakamura | ret = bdrv_get_info(bs, &bdi); |
1389 | 43642b38 | Devin Nakamura | if (ret) {
|
1390 | 43642b38 | Devin Nakamura | return 0; |
1391 | 43642b38 | Devin Nakamura | } |
1392 | e3aff4f6 | aliguori | |
1393 | 43642b38 | Devin Nakamura | cvtstr(bdi.cluster_size, s1, sizeof(s1));
|
1394 | 43642b38 | Devin Nakamura | cvtstr(bdi.vm_state_offset, s2, sizeof(s2));
|
1395 | e3aff4f6 | aliguori | |
1396 | 43642b38 | Devin Nakamura | printf("cluster size: %s\n", s1);
|
1397 | 43642b38 | Devin Nakamura | printf("vm state offset: %s\n", s2);
|
1398 | e3aff4f6 | aliguori | |
1399 | 43642b38 | Devin Nakamura | return 0; |
1400 | e3aff4f6 | aliguori | } |
1401 | e3aff4f6 | aliguori | |
1402 | e3aff4f6 | aliguori | |
1403 | e3aff4f6 | aliguori | |
1404 | e3aff4f6 | aliguori | static const cmdinfo_t info_cmd = { |
1405 | 43642b38 | Devin Nakamura | .name = "info",
|
1406 | 43642b38 | Devin Nakamura | .altname = "i",
|
1407 | 43642b38 | Devin Nakamura | .cfunc = info_f, |
1408 | 43642b38 | Devin Nakamura | .oneline = "prints information about the current file",
|
1409 | e3aff4f6 | aliguori | }; |
1410 | e3aff4f6 | aliguori | |
1411 | 43642b38 | Devin Nakamura | static void discard_help(void) |
1412 | edff5db1 | Stefan Hajnoczi | { |
1413 | 43642b38 | Devin Nakamura | printf( |
1414 | edff5db1 | Stefan Hajnoczi | "\n"
|
1415 | edff5db1 | Stefan Hajnoczi | " discards a range of bytes from the given offset\n"
|
1416 | edff5db1 | Stefan Hajnoczi | "\n"
|
1417 | edff5db1 | Stefan Hajnoczi | " Example:\n"
|
1418 | edff5db1 | Stefan Hajnoczi | " 'discard 512 1k' - discards 1 kilobyte from 512 bytes into the file\n"
|
1419 | edff5db1 | Stefan Hajnoczi | "\n"
|
1420 | edff5db1 | Stefan Hajnoczi | " Discards a segment of the currently open file.\n"
|
1421 | edff5db1 | Stefan Hajnoczi | " -C, -- report statistics in a machine parsable format\n"
|
1422 | 095343ad | Kevin Wolf | " -q, -- quiet mode, do not show I/O statistics\n"
|
1423 | edff5db1 | Stefan Hajnoczi | "\n");
|
1424 | edff5db1 | Stefan Hajnoczi | } |
1425 | edff5db1 | Stefan Hajnoczi | |
1426 | edff5db1 | Stefan Hajnoczi | static int discard_f(int argc, char **argv); |
1427 | edff5db1 | Stefan Hajnoczi | |
1428 | edff5db1 | Stefan Hajnoczi | static const cmdinfo_t discard_cmd = { |
1429 | 43642b38 | Devin Nakamura | .name = "discard",
|
1430 | 43642b38 | Devin Nakamura | .altname = "d",
|
1431 | 43642b38 | Devin Nakamura | .cfunc = discard_f, |
1432 | 43642b38 | Devin Nakamura | .argmin = 2,
|
1433 | 43642b38 | Devin Nakamura | .argmax = -1,
|
1434 | 43642b38 | Devin Nakamura | .args = "[-Cq] off len",
|
1435 | 43642b38 | Devin Nakamura | .oneline = "discards a number of bytes at a specified offset",
|
1436 | 43642b38 | Devin Nakamura | .help = discard_help, |
1437 | edff5db1 | Stefan Hajnoczi | }; |
1438 | edff5db1 | Stefan Hajnoczi | |
1439 | 43642b38 | Devin Nakamura | static int discard_f(int argc, char **argv) |
1440 | edff5db1 | Stefan Hajnoczi | { |
1441 | 43642b38 | Devin Nakamura | struct timeval t1, t2;
|
1442 | 43642b38 | Devin Nakamura | int Cflag = 0, qflag = 0; |
1443 | 43642b38 | Devin Nakamura | int c, ret;
|
1444 | 43642b38 | Devin Nakamura | int64_t offset; |
1445 | 43642b38 | Devin Nakamura | int count;
|
1446 | 43642b38 | Devin Nakamura | |
1447 | 43642b38 | Devin Nakamura | while ((c = getopt(argc, argv, "Cq")) != EOF) { |
1448 | 43642b38 | Devin Nakamura | switch (c) {
|
1449 | 43642b38 | Devin Nakamura | case 'C': |
1450 | 43642b38 | Devin Nakamura | Cflag = 1;
|
1451 | 43642b38 | Devin Nakamura | break;
|
1452 | 43642b38 | Devin Nakamura | case 'q': |
1453 | 43642b38 | Devin Nakamura | qflag = 1;
|
1454 | 43642b38 | Devin Nakamura | break;
|
1455 | 43642b38 | Devin Nakamura | default:
|
1456 | 43642b38 | Devin Nakamura | return command_usage(&discard_cmd);
|
1457 | 43642b38 | Devin Nakamura | } |
1458 | 43642b38 | Devin Nakamura | } |
1459 | 43642b38 | Devin Nakamura | |
1460 | 43642b38 | Devin Nakamura | if (optind != argc - 2) { |
1461 | 43642b38 | Devin Nakamura | return command_usage(&discard_cmd);
|
1462 | 43642b38 | Devin Nakamura | } |
1463 | 43642b38 | Devin Nakamura | |
1464 | 43642b38 | Devin Nakamura | offset = cvtnum(argv[optind]); |
1465 | 43642b38 | Devin Nakamura | if (offset < 0) { |
1466 | 43642b38 | Devin Nakamura | printf("non-numeric length argument -- %s\n", argv[optind]);
|
1467 | 43642b38 | Devin Nakamura | return 0; |
1468 | 43642b38 | Devin Nakamura | } |
1469 | 43642b38 | Devin Nakamura | |
1470 | 43642b38 | Devin Nakamura | optind++; |
1471 | 43642b38 | Devin Nakamura | count = cvtnum(argv[optind]); |
1472 | 43642b38 | Devin Nakamura | if (count < 0) { |
1473 | 43642b38 | Devin Nakamura | printf("non-numeric length argument -- %s\n", argv[optind]);
|
1474 | 43642b38 | Devin Nakamura | return 0; |
1475 | 43642b38 | Devin Nakamura | } |
1476 | 43642b38 | Devin Nakamura | |
1477 | 43642b38 | Devin Nakamura | gettimeofday(&t1, NULL);
|
1478 | 43642b38 | Devin Nakamura | ret = bdrv_discard(bs, offset >> BDRV_SECTOR_BITS, |
1479 | 43642b38 | Devin Nakamura | count >> BDRV_SECTOR_BITS); |
1480 | 43642b38 | Devin Nakamura | gettimeofday(&t2, NULL);
|
1481 | 43642b38 | Devin Nakamura | |
1482 | 43642b38 | Devin Nakamura | if (ret < 0) { |
1483 | 43642b38 | Devin Nakamura | printf("discard failed: %s\n", strerror(-ret));
|
1484 | 43642b38 | Devin Nakamura | goto out;
|
1485 | 43642b38 | Devin Nakamura | } |
1486 | 43642b38 | Devin Nakamura | |
1487 | 43642b38 | Devin Nakamura | /* Finally, report back -- -C gives a parsable format */
|
1488 | 43642b38 | Devin Nakamura | if (!qflag) {
|
1489 | 43642b38 | Devin Nakamura | t2 = tsub(t2, t1); |
1490 | 43642b38 | Devin Nakamura | print_report("discard", &t2, offset, count, count, 1, Cflag); |
1491 | 43642b38 | Devin Nakamura | } |
1492 | edff5db1 | Stefan Hajnoczi | |
1493 | edff5db1 | Stefan Hajnoczi | out:
|
1494 | 43642b38 | Devin Nakamura | return 0; |
1495 | edff5db1 | Stefan Hajnoczi | } |
1496 | edff5db1 | Stefan Hajnoczi | |
1497 | 43642b38 | Devin Nakamura | static int alloc_f(int argc, char **argv) |
1498 | e3aff4f6 | aliguori | { |
1499 | 43642b38 | Devin Nakamura | int64_t offset; |
1500 | 43642b38 | Devin Nakamura | int nb_sectors, remaining;
|
1501 | 43642b38 | Devin Nakamura | char s1[64]; |
1502 | 43642b38 | Devin Nakamura | int num, sum_alloc;
|
1503 | 43642b38 | Devin Nakamura | int ret;
|
1504 | 43642b38 | Devin Nakamura | |
1505 | 43642b38 | Devin Nakamura | offset = cvtnum(argv[1]);
|
1506 | 43642b38 | Devin Nakamura | if (offset & 0x1ff) { |
1507 | 43642b38 | Devin Nakamura | printf("offset %" PRId64 " is not sector aligned\n", |
1508 | 43642b38 | Devin Nakamura | offset); |
1509 | 43642b38 | Devin Nakamura | return 0; |
1510 | 43642b38 | Devin Nakamura | } |
1511 | 43642b38 | Devin Nakamura | |
1512 | 43642b38 | Devin Nakamura | if (argc == 3) { |
1513 | 43642b38 | Devin Nakamura | nb_sectors = cvtnum(argv[2]);
|
1514 | 43642b38 | Devin Nakamura | } else {
|
1515 | 43642b38 | Devin Nakamura | nb_sectors = 1;
|
1516 | 43642b38 | Devin Nakamura | } |
1517 | 43642b38 | Devin Nakamura | |
1518 | 43642b38 | Devin Nakamura | remaining = nb_sectors; |
1519 | 43642b38 | Devin Nakamura | sum_alloc = 0;
|
1520 | 43642b38 | Devin Nakamura | while (remaining) {
|
1521 | 43642b38 | Devin Nakamura | ret = bdrv_is_allocated(bs, offset >> 9, nb_sectors, &num);
|
1522 | 43642b38 | Devin Nakamura | remaining -= num; |
1523 | 43642b38 | Devin Nakamura | if (ret) {
|
1524 | 43642b38 | Devin Nakamura | sum_alloc += num; |
1525 | 43642b38 | Devin Nakamura | } |
1526 | 43642b38 | Devin Nakamura | } |
1527 | 43642b38 | Devin Nakamura | |
1528 | 43642b38 | Devin Nakamura | cvtstr(offset, s1, sizeof(s1));
|
1529 | 43642b38 | Devin Nakamura | |
1530 | 43642b38 | Devin Nakamura | printf("%d/%d sectors allocated at offset %s\n",
|
1531 | 43642b38 | Devin Nakamura | sum_alloc, nb_sectors, s1); |
1532 | 43642b38 | Devin Nakamura | return 0; |
1533 | e3aff4f6 | aliguori | } |
1534 | e3aff4f6 | aliguori | |
1535 | e3aff4f6 | aliguori | static const cmdinfo_t alloc_cmd = { |
1536 | 43642b38 | Devin Nakamura | .name = "alloc",
|
1537 | 43642b38 | Devin Nakamura | .altname = "a",
|
1538 | 43642b38 | Devin Nakamura | .argmin = 1,
|
1539 | 43642b38 | Devin Nakamura | .argmax = 2,
|
1540 | 43642b38 | Devin Nakamura | .cfunc = alloc_f, |
1541 | 43642b38 | Devin Nakamura | .args = "off [sectors]",
|
1542 | 43642b38 | Devin Nakamura | .oneline = "checks if a sector is present in the file",
|
1543 | e3aff4f6 | aliguori | }; |
1544 | e3aff4f6 | aliguori | |
1545 | 43642b38 | Devin Nakamura | static int map_f(int argc, char **argv) |
1546 | 191c2890 | Kevin Wolf | { |
1547 | 43642b38 | Devin Nakamura | int64_t offset; |
1548 | 43642b38 | Devin Nakamura | int64_t nb_sectors; |
1549 | 43642b38 | Devin Nakamura | char s1[64]; |
1550 | 43642b38 | Devin Nakamura | int num, num_checked;
|
1551 | 43642b38 | Devin Nakamura | int ret;
|
1552 | 43642b38 | Devin Nakamura | const char *retstr; |
1553 | 43642b38 | Devin Nakamura | |
1554 | 43642b38 | Devin Nakamura | offset = 0;
|
1555 | 43642b38 | Devin Nakamura | nb_sectors = bs->total_sectors; |
1556 | 43642b38 | Devin Nakamura | |
1557 | 43642b38 | Devin Nakamura | do {
|
1558 | 43642b38 | Devin Nakamura | num_checked = MIN(nb_sectors, INT_MAX); |
1559 | 43642b38 | Devin Nakamura | ret = bdrv_is_allocated(bs, offset, num_checked, &num); |
1560 | 43642b38 | Devin Nakamura | retstr = ret ? " allocated" : "not allocated"; |
1561 | 43642b38 | Devin Nakamura | cvtstr(offset << 9ULL, s1, sizeof(s1)); |
1562 | 43642b38 | Devin Nakamura | printf("[% 24" PRId64 "] % 8d/% 8d sectors %s at offset %s (%d)\n", |
1563 | 43642b38 | Devin Nakamura | offset << 9ULL, num, num_checked, retstr, s1, ret);
|
1564 | 43642b38 | Devin Nakamura | |
1565 | 43642b38 | Devin Nakamura | offset += num; |
1566 | 43642b38 | Devin Nakamura | nb_sectors -= num; |
1567 | 43642b38 | Devin Nakamura | } while (offset < bs->total_sectors);
|
1568 | 43642b38 | Devin Nakamura | |
1569 | 43642b38 | Devin Nakamura | return 0; |
1570 | 191c2890 | Kevin Wolf | } |
1571 | 191c2890 | Kevin Wolf | |
1572 | 191c2890 | Kevin Wolf | static const cmdinfo_t map_cmd = { |
1573 | 191c2890 | Kevin Wolf | .name = "map",
|
1574 | 191c2890 | Kevin Wolf | .argmin = 0,
|
1575 | 191c2890 | Kevin Wolf | .argmax = 0,
|
1576 | 191c2890 | Kevin Wolf | .cfunc = map_f, |
1577 | 191c2890 | Kevin Wolf | .args = "",
|
1578 | 191c2890 | Kevin Wolf | .oneline = "prints the allocated areas of a file",
|
1579 | 191c2890 | Kevin Wolf | }; |
1580 | 191c2890 | Kevin Wolf | |
1581 | 191c2890 | Kevin Wolf | |
1582 | 43642b38 | Devin Nakamura | static int close_f(int argc, char **argv) |
1583 | e3aff4f6 | aliguori | { |
1584 | 43642b38 | Devin Nakamura | bdrv_close(bs); |
1585 | 43642b38 | Devin Nakamura | bs = NULL;
|
1586 | 43642b38 | Devin Nakamura | return 0; |
1587 | e3aff4f6 | aliguori | } |
1588 | e3aff4f6 | aliguori | |
1589 | e3aff4f6 | aliguori | static const cmdinfo_t close_cmd = { |
1590 | 43642b38 | Devin Nakamura | .name = "close",
|
1591 | 43642b38 | Devin Nakamura | .altname = "c",
|
1592 | 43642b38 | Devin Nakamura | .cfunc = close_f, |
1593 | 43642b38 | Devin Nakamura | .oneline = "close the current open file",
|
1594 | e3aff4f6 | aliguori | }; |
1595 | e3aff4f6 | aliguori | |
1596 | 9c4bab26 | Christoph Hellwig | static int openfile(char *name, int flags, int growable) |
1597 | e3aff4f6 | aliguori | { |
1598 | 43642b38 | Devin Nakamura | if (bs) {
|
1599 | 43642b38 | Devin Nakamura | fprintf(stderr, "file open already, try 'help close'\n");
|
1600 | 43642b38 | Devin Nakamura | return 1; |
1601 | 43642b38 | Devin Nakamura | } |
1602 | 43642b38 | Devin Nakamura | |
1603 | 43642b38 | Devin Nakamura | if (growable) {
|
1604 | 43642b38 | Devin Nakamura | if (bdrv_file_open(&bs, name, flags)) {
|
1605 | 43642b38 | Devin Nakamura | fprintf(stderr, "%s: can't open device %s\n", progname, name);
|
1606 | 43642b38 | Devin Nakamura | return 1; |
1607 | 43642b38 | Devin Nakamura | } |
1608 | 43642b38 | Devin Nakamura | } else {
|
1609 | 43642b38 | Devin Nakamura | bs = bdrv_new("hda");
|
1610 | 43642b38 | Devin Nakamura | |
1611 | 43642b38 | Devin Nakamura | if (bdrv_open(bs, name, flags, NULL) < 0) { |
1612 | 43642b38 | Devin Nakamura | fprintf(stderr, "%s: can't open device %s\n", progname, name);
|
1613 | 43642b38 | Devin Nakamura | bs = NULL;
|
1614 | 43642b38 | Devin Nakamura | return 1; |
1615 | 43642b38 | Devin Nakamura | } |
1616 | 43642b38 | Devin Nakamura | } |
1617 | 43642b38 | Devin Nakamura | |
1618 | 43642b38 | Devin Nakamura | return 0; |
1619 | e3aff4f6 | aliguori | } |
1620 | e3aff4f6 | aliguori | |
1621 | 43642b38 | Devin Nakamura | static void open_help(void) |
1622 | e3aff4f6 | aliguori | { |
1623 | 43642b38 | Devin Nakamura | printf( |
1624 | e3aff4f6 | aliguori | "\n"
|
1625 | e3aff4f6 | aliguori | " opens a new file in the requested mode\n"
|
1626 | e3aff4f6 | aliguori | "\n"
|
1627 | e3aff4f6 | aliguori | " Example:\n"
|
1628 | e3aff4f6 | aliguori | " 'open -Cn /tmp/data' - creates/opens data file read-write and uncached\n"
|
1629 | e3aff4f6 | aliguori | "\n"
|
1630 | e3aff4f6 | aliguori | " Opens a file for subsequent use by all of the other qemu-io commands.\n"
|
1631 | e3aff4f6 | aliguori | " -r, -- open file read-only\n"
|
1632 | e3aff4f6 | aliguori | " -s, -- use snapshot file\n"
|
1633 | e3aff4f6 | aliguori | " -n, -- disable host cache\n"
|
1634 | 9c4bab26 | Christoph Hellwig | " -g, -- allow file to grow (only applies to protocols)"
|
1635 | e3aff4f6 | aliguori | "\n");
|
1636 | e3aff4f6 | aliguori | } |
1637 | e3aff4f6 | aliguori | |
1638 | 22a2bdcb | Blue Swirl | static int open_f(int argc, char **argv); |
1639 | 22a2bdcb | Blue Swirl | |
1640 | 22a2bdcb | Blue Swirl | static const cmdinfo_t open_cmd = { |
1641 | 43642b38 | Devin Nakamura | .name = "open",
|
1642 | 43642b38 | Devin Nakamura | .altname = "o",
|
1643 | 43642b38 | Devin Nakamura | .cfunc = open_f, |
1644 | 43642b38 | Devin Nakamura | .argmin = 1,
|
1645 | 43642b38 | Devin Nakamura | .argmax = -1,
|
1646 | 43642b38 | Devin Nakamura | .flags = CMD_NOFILE_OK, |
1647 | 43642b38 | Devin Nakamura | .args = "[-Crsn] [path]",
|
1648 | 43642b38 | Devin Nakamura | .oneline = "open the file specified by path",
|
1649 | 43642b38 | Devin Nakamura | .help = open_help, |
1650 | 22a2bdcb | Blue Swirl | }; |
1651 | e3aff4f6 | aliguori | |
1652 | 43642b38 | Devin Nakamura | static int open_f(int argc, char **argv) |
1653 | e3aff4f6 | aliguori | { |
1654 | 43642b38 | Devin Nakamura | int flags = 0; |
1655 | 43642b38 | Devin Nakamura | int readonly = 0; |
1656 | 43642b38 | Devin Nakamura | int growable = 0; |
1657 | 43642b38 | Devin Nakamura | int c;
|
1658 | 43642b38 | Devin Nakamura | |
1659 | 43642b38 | Devin Nakamura | while ((c = getopt(argc, argv, "snrg")) != EOF) { |
1660 | 43642b38 | Devin Nakamura | switch (c) {
|
1661 | 43642b38 | Devin Nakamura | case 's': |
1662 | 43642b38 | Devin Nakamura | flags |= BDRV_O_SNAPSHOT; |
1663 | 43642b38 | Devin Nakamura | break;
|
1664 | 43642b38 | Devin Nakamura | case 'n': |
1665 | 43642b38 | Devin Nakamura | flags |= BDRV_O_NOCACHE | BDRV_O_CACHE_WB; |
1666 | 43642b38 | Devin Nakamura | break;
|
1667 | 43642b38 | Devin Nakamura | case 'r': |
1668 | 43642b38 | Devin Nakamura | readonly = 1;
|
1669 | 43642b38 | Devin Nakamura | break;
|
1670 | 43642b38 | Devin Nakamura | case 'g': |
1671 | 43642b38 | Devin Nakamura | growable = 1;
|
1672 | 43642b38 | Devin Nakamura | break;
|
1673 | 43642b38 | Devin Nakamura | default:
|
1674 | 43642b38 | Devin Nakamura | return command_usage(&open_cmd);
|
1675 | f5edb014 | Naphtali Sprei | } |
1676 | 43642b38 | Devin Nakamura | } |
1677 | 43642b38 | Devin Nakamura | |
1678 | 43642b38 | Devin Nakamura | if (!readonly) {
|
1679 | 43642b38 | Devin Nakamura | flags |= BDRV_O_RDWR; |
1680 | 43642b38 | Devin Nakamura | } |
1681 | e3aff4f6 | aliguori | |
1682 | 43642b38 | Devin Nakamura | if (optind != argc - 1) { |
1683 | 43642b38 | Devin Nakamura | return command_usage(&open_cmd);
|
1684 | 43642b38 | Devin Nakamura | } |
1685 | e3aff4f6 | aliguori | |
1686 | 43642b38 | Devin Nakamura | return openfile(argv[optind], flags, growable);
|
1687 | e3aff4f6 | aliguori | } |
1688 | e3aff4f6 | aliguori | |
1689 | 43642b38 | Devin Nakamura | static int init_args_command(int index) |
1690 | e3aff4f6 | aliguori | { |
1691 | 43642b38 | Devin Nakamura | /* only one device allowed so far */
|
1692 | 43642b38 | Devin Nakamura | if (index >= 1) { |
1693 | 43642b38 | Devin Nakamura | return 0; |
1694 | 43642b38 | Devin Nakamura | } |
1695 | 43642b38 | Devin Nakamura | return ++index;
|
1696 | e3aff4f6 | aliguori | } |
1697 | e3aff4f6 | aliguori | |
1698 | 43642b38 | Devin Nakamura | static int init_check_command(const cmdinfo_t *ct) |
1699 | e3aff4f6 | aliguori | { |
1700 | 43642b38 | Devin Nakamura | if (ct->flags & CMD_FLAG_GLOBAL) {
|
1701 | 43642b38 | Devin Nakamura | return 1; |
1702 | 43642b38 | Devin Nakamura | } |
1703 | 43642b38 | Devin Nakamura | if (!(ct->flags & CMD_NOFILE_OK) && !bs) {
|
1704 | 43642b38 | Devin Nakamura | fprintf(stderr, "no file open, try 'help open'\n");
|
1705 | 43642b38 | Devin Nakamura | return 0; |
1706 | 43642b38 | Devin Nakamura | } |
1707 | 43642b38 | Devin Nakamura | return 1; |
1708 | e3aff4f6 | aliguori | } |
1709 | e3aff4f6 | aliguori | |
1710 | e3aff4f6 | aliguori | static void usage(const char *name) |
1711 | e3aff4f6 | aliguori | { |
1712 | 43642b38 | Devin Nakamura | printf( |
1713 | 9a2d77ad | Christoph Hellwig | "Usage: %s [-h] [-V] [-rsnm] [-c cmd] ... [file]\n"
|
1714 | 84844a20 | Stefan Weil | "QEMU Disk exerciser\n"
|
1715 | e3aff4f6 | aliguori | "\n"
|
1716 | e3aff4f6 | aliguori | " -c, --cmd command to execute\n"
|
1717 | e3aff4f6 | aliguori | " -r, --read-only export read-only\n"
|
1718 | e3aff4f6 | aliguori | " -s, --snapshot use snapshot file\n"
|
1719 | e3aff4f6 | aliguori | " -n, --nocache disable host cache\n"
|
1720 | 1db6947d | Christoph Hellwig | " -g, --growable allow file to grow (only applies to protocols)\n"
|
1721 | e3aff4f6 | aliguori | " -m, --misalign misalign allocations for O_DIRECT\n"
|
1722 | 5c6c3a6c | Christoph Hellwig | " -k, --native-aio use kernel AIO implementation (on Linux only)\n"
|
1723 | e3aff4f6 | aliguori | " -h, --help display this help and exit\n"
|
1724 | e3aff4f6 | aliguori | " -V, --version output version information and exit\n"
|
1725 | e3aff4f6 | aliguori | "\n",
|
1726 | 43642b38 | Devin Nakamura | name); |
1727 | e3aff4f6 | aliguori | } |
1728 | e3aff4f6 | aliguori | |
1729 | e3aff4f6 | aliguori | |
1730 | e3aff4f6 | aliguori | int main(int argc, char **argv) |
1731 | e3aff4f6 | aliguori | { |
1732 | 43642b38 | Devin Nakamura | int readonly = 0; |
1733 | 43642b38 | Devin Nakamura | int growable = 0; |
1734 | 43642b38 | Devin Nakamura | const char *sopt = "hVc:rsnmgk"; |
1735 | 43642b38 | Devin Nakamura | const struct option lopt[] = { |
1736 | 43642b38 | Devin Nakamura | { "help", 0, NULL, 'h' }, |
1737 | 43642b38 | Devin Nakamura | { "version", 0, NULL, 'V' }, |
1738 | 43642b38 | Devin Nakamura | { "offset", 1, NULL, 'o' }, |
1739 | 43642b38 | Devin Nakamura | { "cmd", 1, NULL, 'c' }, |
1740 | 43642b38 | Devin Nakamura | { "read-only", 0, NULL, 'r' }, |
1741 | 43642b38 | Devin Nakamura | { "snapshot", 0, NULL, 's' }, |
1742 | 43642b38 | Devin Nakamura | { "nocache", 0, NULL, 'n' }, |
1743 | 43642b38 | Devin Nakamura | { "misalign", 0, NULL, 'm' }, |
1744 | 43642b38 | Devin Nakamura | { "growable", 0, NULL, 'g' }, |
1745 | 43642b38 | Devin Nakamura | { "native-aio", 0, NULL, 'k' }, |
1746 | 43642b38 | Devin Nakamura | { NULL, 0, NULL, 0 } |
1747 | 43642b38 | Devin Nakamura | }; |
1748 | 43642b38 | Devin Nakamura | int c;
|
1749 | 43642b38 | Devin Nakamura | int opt_index = 0; |
1750 | 43642b38 | Devin Nakamura | int flags = 0; |
1751 | 43642b38 | Devin Nakamura | |
1752 | 43642b38 | Devin Nakamura | progname = basename(argv[0]);
|
1753 | 43642b38 | Devin Nakamura | |
1754 | 43642b38 | Devin Nakamura | while ((c = getopt_long(argc, argv, sopt, lopt, &opt_index)) != -1) { |
1755 | 43642b38 | Devin Nakamura | switch (c) {
|
1756 | 43642b38 | Devin Nakamura | case 's': |
1757 | 43642b38 | Devin Nakamura | flags |= BDRV_O_SNAPSHOT; |
1758 | 43642b38 | Devin Nakamura | break;
|
1759 | 43642b38 | Devin Nakamura | case 'n': |
1760 | 43642b38 | Devin Nakamura | flags |= BDRV_O_NOCACHE | BDRV_O_CACHE_WB; |
1761 | 43642b38 | Devin Nakamura | break;
|
1762 | 43642b38 | Devin Nakamura | case 'c': |
1763 | 43642b38 | Devin Nakamura | add_user_command(optarg); |
1764 | 43642b38 | Devin Nakamura | break;
|
1765 | 43642b38 | Devin Nakamura | case 'r': |
1766 | 43642b38 | Devin Nakamura | readonly = 1;
|
1767 | 43642b38 | Devin Nakamura | break;
|
1768 | 43642b38 | Devin Nakamura | case 'm': |
1769 | 43642b38 | Devin Nakamura | misalign = 1;
|
1770 | 43642b38 | Devin Nakamura | break;
|
1771 | 43642b38 | Devin Nakamura | case 'g': |
1772 | 43642b38 | Devin Nakamura | growable = 1;
|
1773 | 43642b38 | Devin Nakamura | break;
|
1774 | 43642b38 | Devin Nakamura | case 'k': |
1775 | 43642b38 | Devin Nakamura | flags |= BDRV_O_NATIVE_AIO; |
1776 | 43642b38 | Devin Nakamura | break;
|
1777 | 43642b38 | Devin Nakamura | case 'V': |
1778 | 43642b38 | Devin Nakamura | printf("%s version %s\n", progname, VERSION);
|
1779 | 43642b38 | Devin Nakamura | exit(0);
|
1780 | 43642b38 | Devin Nakamura | case 'h': |
1781 | 43642b38 | Devin Nakamura | usage(progname); |
1782 | 43642b38 | Devin Nakamura | exit(0);
|
1783 | 43642b38 | Devin Nakamura | default:
|
1784 | 43642b38 | Devin Nakamura | usage(progname); |
1785 | 43642b38 | Devin Nakamura | exit(1);
|
1786 | f5edb014 | Naphtali Sprei | } |
1787 | 43642b38 | Devin Nakamura | } |
1788 | 43642b38 | Devin Nakamura | |
1789 | 43642b38 | Devin Nakamura | if ((argc - optind) > 1) { |
1790 | 43642b38 | Devin Nakamura | usage(progname); |
1791 | 43642b38 | Devin Nakamura | exit(1);
|
1792 | 43642b38 | Devin Nakamura | } |
1793 | e3aff4f6 | aliguori | |
1794 | 43642b38 | Devin Nakamura | bdrv_init(); |
1795 | 43642b38 | Devin Nakamura | |
1796 | 43642b38 | Devin Nakamura | /* initialize commands */
|
1797 | 43642b38 | Devin Nakamura | quit_init(); |
1798 | 43642b38 | Devin Nakamura | help_init(); |
1799 | 43642b38 | Devin Nakamura | add_command(&open_cmd); |
1800 | 43642b38 | Devin Nakamura | add_command(&close_cmd); |
1801 | 43642b38 | Devin Nakamura | add_command(&read_cmd); |
1802 | 43642b38 | Devin Nakamura | add_command(&readv_cmd); |
1803 | 43642b38 | Devin Nakamura | add_command(&write_cmd); |
1804 | 43642b38 | Devin Nakamura | add_command(&writev_cmd); |
1805 | 43642b38 | Devin Nakamura | add_command(&multiwrite_cmd); |
1806 | 43642b38 | Devin Nakamura | add_command(&aio_read_cmd); |
1807 | 43642b38 | Devin Nakamura | add_command(&aio_write_cmd); |
1808 | 43642b38 | Devin Nakamura | add_command(&aio_flush_cmd); |
1809 | 43642b38 | Devin Nakamura | add_command(&flush_cmd); |
1810 | 43642b38 | Devin Nakamura | add_command(&truncate_cmd); |
1811 | 43642b38 | Devin Nakamura | add_command(&length_cmd); |
1812 | 43642b38 | Devin Nakamura | add_command(&info_cmd); |
1813 | 43642b38 | Devin Nakamura | add_command(&discard_cmd); |
1814 | 43642b38 | Devin Nakamura | add_command(&alloc_cmd); |
1815 | 43642b38 | Devin Nakamura | add_command(&map_cmd); |
1816 | 43642b38 | Devin Nakamura | |
1817 | 43642b38 | Devin Nakamura | add_args_command(init_args_command); |
1818 | 43642b38 | Devin Nakamura | add_check_command(init_check_command); |
1819 | 43642b38 | Devin Nakamura | |
1820 | 43642b38 | Devin Nakamura | /* open the device */
|
1821 | 43642b38 | Devin Nakamura | if (!readonly) {
|
1822 | 43642b38 | Devin Nakamura | flags |= BDRV_O_RDWR; |
1823 | 43642b38 | Devin Nakamura | } |
1824 | 43642b38 | Devin Nakamura | |
1825 | 43642b38 | Devin Nakamura | if ((argc - optind) == 1) { |
1826 | 43642b38 | Devin Nakamura | openfile(argv[optind], flags, growable); |
1827 | 43642b38 | Devin Nakamura | } |
1828 | 43642b38 | Devin Nakamura | command_loop(); |
1829 | e3aff4f6 | aliguori | |
1830 | 43642b38 | Devin Nakamura | /*
|
1831 | 43642b38 | Devin Nakamura | * Make sure all outstanding requests get flushed the program exits.
|
1832 | 43642b38 | Devin Nakamura | */
|
1833 | 43642b38 | Devin Nakamura | qemu_aio_flush(); |
1834 | 95533d5f | Christoph Hellwig | |
1835 | 43642b38 | Devin Nakamura | if (bs) {
|
1836 | 43642b38 | Devin Nakamura | bdrv_close(bs); |
1837 | 43642b38 | Devin Nakamura | } |
1838 | 43642b38 | Devin Nakamura | return 0; |
1839 | e3aff4f6 | aliguori | } |