1 | /* |
---|
2 | * Copyright (c) 2012 embedded brains GmbH. All rights reserved. |
---|
3 | * |
---|
4 | * embedded brains GmbH |
---|
5 | * Obere Lagerstr. 30 |
---|
6 | * 82178 Puchheim |
---|
7 | * Germany |
---|
8 | * <rtems@embedded-brains.de> |
---|
9 | * |
---|
10 | * The license and distribution terms for this file may be |
---|
11 | * found in the file LICENSE in this distribution or at |
---|
12 | * http://www.rtems.org/license/LICENSE. |
---|
13 | */ |
---|
14 | |
---|
15 | #ifdef HAVE_CONFIG_H |
---|
16 | #include "config.h" |
---|
17 | #endif |
---|
18 | |
---|
19 | #include <fcntl.h> |
---|
20 | #include <rtems/blkdev.h> |
---|
21 | #include "rtems/sparse-disk.h" |
---|
22 | |
---|
23 | #include "tmacros.h" |
---|
24 | |
---|
25 | const char rtems_test_name[] = "SPARSEDISK 1"; |
---|
26 | |
---|
27 | /* Number of bytes for test pattern within a sparse disk container */ |
---|
28 | #define STATIC_PATTERN_SIZE 4096 |
---|
29 | |
---|
30 | /* Block size used for the sparse disk in a sparse disk container */ |
---|
31 | #define STATIC_BLOCK_SIZE 4096 |
---|
32 | |
---|
33 | /* Number of block allocated for the sparse disk in a sparse disk container */ |
---|
34 | #define STATIC_ALLOCATED_BLOCK_COUNT 1 |
---|
35 | |
---|
36 | /* Blocks simulated by the sparse disk in a disk container */ |
---|
37 | #define STATIC_SIMULATED_BLOCK_COUNT 4096 |
---|
38 | |
---|
39 | /* |
---|
40 | * Container which cotains a sparse disk + memory for key table and data as would get |
---|
41 | * allocated by rtems_sparse_disk_create() + memory for a memory test pattern |
---|
42 | * By using this container white box testing of a sparse disk becomes possible |
---|
43 | */ |
---|
44 | typedef struct { |
---|
45 | rtems_sparse_disk sparse_disk; |
---|
46 | rtems_sparse_disk_key keytable[STATIC_ALLOCATED_BLOCK_COUNT]; |
---|
47 | uint8_t data[STATIC_BLOCK_SIZE * STATIC_ALLOCATED_BLOCK_COUNT]; |
---|
48 | uint8_t pattern[STATIC_PATTERN_SIZE]; |
---|
49 | } sparse_disk_container; |
---|
50 | |
---|
51 | /* |
---|
52 | * Black box test the disk parameters of a sparse disk |
---|
53 | */ |
---|
54 | static void test_disk_params( |
---|
55 | const int file_descriptor, |
---|
56 | const uint32_t block_size, |
---|
57 | const uint32_t media_block_size, |
---|
58 | const rtems_blkdev_bnum block_number ) |
---|
59 | { |
---|
60 | int rv; |
---|
61 | uint32_t value = 0; |
---|
62 | rtems_disk_device *fd_dd = NULL; |
---|
63 | rtems_blkdev_bnum block_count = 0; |
---|
64 | |
---|
65 | |
---|
66 | rv = rtems_disk_fd_get_media_block_size( file_descriptor, &value ); |
---|
67 | rtems_test_assert( 0 == rv ); |
---|
68 | rtems_test_assert( media_block_size == value ); |
---|
69 | |
---|
70 | value = 0; |
---|
71 | rv = rtems_disk_fd_get_block_size( file_descriptor, &value ); |
---|
72 | rtems_test_assert( 0 == rv ); |
---|
73 | rtems_test_assert( block_size == value ); |
---|
74 | |
---|
75 | block_count = 0; |
---|
76 | rv = rtems_disk_fd_get_block_count( file_descriptor, &block_count ); |
---|
77 | rtems_test_assert( 0 == rv ); |
---|
78 | rtems_test_assert( block_number == block_count ); |
---|
79 | |
---|
80 | rv = rtems_disk_fd_get_disk_device( file_descriptor, &fd_dd ); |
---|
81 | rtems_test_assert( 0 == rv ); |
---|
82 | rtems_test_assert( NULL != fd_dd ); |
---|
83 | } |
---|
84 | |
---|
85 | /* |
---|
86 | * Verify that writing to a sparse disk delivers expected results |
---|
87 | */ |
---|
88 | static void test_writing( |
---|
89 | const int file_descriptor, |
---|
90 | const uint32_t block_size, |
---|
91 | const rtems_blkdev_bnum blocks_allocated ) |
---|
92 | { |
---|
93 | int rv; |
---|
94 | rtems_blkdev_bnum block_count = 0; |
---|
95 | unsigned int byte_count; |
---|
96 | off_t file_pos; |
---|
97 | uint8_t buff[block_size]; |
---|
98 | |
---|
99 | |
---|
100 | /* Write a pattern to all allocated blocks */ |
---|
101 | for ( block_count = 0; block_count < blocks_allocated; block_count++ ) { |
---|
102 | file_pos = (off_t) block_count * block_size; |
---|
103 | rv = lseek( file_descriptor, file_pos, SEEK_SET ); |
---|
104 | rtems_test_assert( file_pos == rv ); |
---|
105 | |
---|
106 | rv = read( file_descriptor, buff, block_size ); |
---|
107 | rtems_test_assert( block_size == rv ); |
---|
108 | |
---|
109 | for ( byte_count = 0; |
---|
110 | byte_count < ( block_size / sizeof( byte_count ) ); |
---|
111 | byte_count++ ) { |
---|
112 | memcpy( buff + ( byte_count * sizeof( byte_count ) ), &byte_count, |
---|
113 | sizeof( byte_count ) ); |
---|
114 | } |
---|
115 | |
---|
116 | rv = lseek( file_descriptor, file_pos, SEEK_SET ); |
---|
117 | rtems_test_assert( file_pos == rv ); |
---|
118 | |
---|
119 | rv = write( file_descriptor, buff, block_size ); |
---|
120 | rtems_test_assert( block_size == rv ); |
---|
121 | } |
---|
122 | } |
---|
123 | |
---|
124 | /* |
---|
125 | * Verify that black box reading for a sparse disk delivers expected results |
---|
126 | */ |
---|
127 | static void test_reading( |
---|
128 | const int file_descriptor, |
---|
129 | const uint32_t block_size, |
---|
130 | const rtems_blkdev_bnum blocks_allocated, |
---|
131 | const uint8_t fill_pattern ) |
---|
132 | { |
---|
133 | int rv; |
---|
134 | rtems_blkdev_bnum block_count = 0; |
---|
135 | unsigned int byte_count; |
---|
136 | off_t file_pos; |
---|
137 | uint8_t buff[block_size]; |
---|
138 | uint32_t value = 0; |
---|
139 | |
---|
140 | |
---|
141 | rv = fsync( file_descriptor ); |
---|
142 | rtems_test_assert( 0 == rv ); |
---|
143 | |
---|
144 | /* Read back the patterns */ |
---|
145 | for ( block_count = 0; block_count < blocks_allocated; block_count++ ) { |
---|
146 | file_pos = (off_t) block_count * block_size; |
---|
147 | value = lseek( file_descriptor, file_pos, SEEK_SET ); |
---|
148 | rtems_test_assert( file_pos == value ); |
---|
149 | |
---|
150 | rv = read( file_descriptor, &buff, block_size ); |
---|
151 | rtems_test_assert( block_size <= rv ); |
---|
152 | |
---|
153 | for ( byte_count = 0; |
---|
154 | byte_count < ( block_size / sizeof( byte_count ) ); |
---|
155 | byte_count++ ) { |
---|
156 | rv = memcmp( buff + ( byte_count * sizeof( byte_count ) ), |
---|
157 | &byte_count, |
---|
158 | sizeof( byte_count ) ); |
---|
159 | rtems_test_assert( 0 == rv ); |
---|
160 | } |
---|
161 | } |
---|
162 | |
---|
163 | /* Try to read from unallocated block */ |
---|
164 | file_pos = (off_t) block_count * block_size; |
---|
165 | rv = lseek( file_descriptor, file_pos, SEEK_SET ); |
---|
166 | rtems_test_assert( file_pos == rv ); |
---|
167 | |
---|
168 | rv = read( file_descriptor, buff, block_size ); |
---|
169 | rtems_test_assert( block_size == rv ); |
---|
170 | |
---|
171 | for ( byte_count = 0; byte_count < block_size; ++byte_count ) |
---|
172 | rtems_test_assert( fill_pattern == buff[byte_count] ); |
---|
173 | } |
---|
174 | |
---|
175 | /* |
---|
176 | * Do black box io testing on a sparse disk |
---|
177 | */ |
---|
178 | static void test_device_io( const char *device_name, |
---|
179 | const uint32_t block_size, |
---|
180 | const uint32_t media_block_size, |
---|
181 | const rtems_blkdev_bnum block_number, |
---|
182 | const rtems_blkdev_bnum blocks_allocated, |
---|
183 | const uint8_t fill_pattern ) |
---|
184 | { |
---|
185 | int rv; |
---|
186 | int file_descriptor; |
---|
187 | |
---|
188 | |
---|
189 | file_descriptor = open( device_name, O_RDWR ); |
---|
190 | rtems_test_assert( 0 <= file_descriptor ); |
---|
191 | |
---|
192 | test_disk_params( |
---|
193 | file_descriptor, |
---|
194 | block_size, |
---|
195 | media_block_size, |
---|
196 | block_number |
---|
197 | ); |
---|
198 | |
---|
199 | test_writing( |
---|
200 | file_descriptor, |
---|
201 | block_size, |
---|
202 | blocks_allocated |
---|
203 | ); |
---|
204 | |
---|
205 | test_reading( |
---|
206 | file_descriptor, |
---|
207 | block_size, |
---|
208 | blocks_allocated, |
---|
209 | fill_pattern |
---|
210 | ); |
---|
211 | |
---|
212 | rv = close( file_descriptor ); |
---|
213 | rtems_test_assert( 0 == rv ); |
---|
214 | } |
---|
215 | |
---|
216 | /* |
---|
217 | * In white box testing verify the key table of the sparse disk is correct |
---|
218 | */ |
---|
219 | static void test_static_key_table( |
---|
220 | const sparse_disk_container *disk_container, |
---|
221 | const rtems_blkdev_bnum blocks_allocated, |
---|
222 | const uint32_t block_size ) |
---|
223 | { |
---|
224 | unsigned int i; |
---|
225 | |
---|
226 | |
---|
227 | for ( i = 0; i < blocks_allocated; ++i ) { |
---|
228 | rtems_test_assert( i == disk_container->keytable[i].block ); |
---|
229 | rtems_test_assert( |
---|
230 | &disk_container->data[i * block_size] |
---|
231 | == disk_container->keytable[i].data ); |
---|
232 | } |
---|
233 | } |
---|
234 | |
---|
235 | /* |
---|
236 | * Verify the test pattern used in white box testing is as expected |
---|
237 | */ |
---|
238 | static void test_static_pattern( |
---|
239 | const unsigned int pattern_size, |
---|
240 | const uint8_t *pattern ) |
---|
241 | { |
---|
242 | unsigned int i; |
---|
243 | |
---|
244 | |
---|
245 | for ( i = 0; i < pattern_size; ++i ) |
---|
246 | rtems_test_assert( ( (uint8_t) ( pattern_size - 1 - i ) ) == pattern[i] ); |
---|
247 | } |
---|
248 | |
---|
249 | /* |
---|
250 | * Read write testing with a statically allocated disk. Thus white box testing can be done |
---|
251 | */ |
---|
252 | static void test_with_whitebox( const char *device_name ) |
---|
253 | { |
---|
254 | rtems_status_code sc; |
---|
255 | int rv; |
---|
256 | unsigned int i; |
---|
257 | sparse_disk_container disk_container; |
---|
258 | int file_descriptor; |
---|
259 | rtems_blkdev_bnum block_count = 0; |
---|
260 | unsigned int byte_count; |
---|
261 | uint8_t fill_pattern = 0; |
---|
262 | |
---|
263 | |
---|
264 | memset( disk_container.data, 0, sizeof( disk_container.data ) ); |
---|
265 | memset( disk_container.keytable, 0, sizeof( disk_container.keytable ) ); |
---|
266 | |
---|
267 | for ( i = 0; i < STATIC_PATTERN_SIZE; ++i ) |
---|
268 | disk_container.pattern[i] = (uint8_t) ( STATIC_PATTERN_SIZE - 1 - i ); |
---|
269 | |
---|
270 | sc = rtems_sparse_disk_register( |
---|
271 | "/dev/sda1", |
---|
272 | &disk_container.sparse_disk, |
---|
273 | STATIC_BLOCK_SIZE, |
---|
274 | STATIC_ALLOCATED_BLOCK_COUNT, |
---|
275 | STATIC_SIMULATED_BLOCK_COUNT, |
---|
276 | fill_pattern, |
---|
277 | NULL |
---|
278 | ); |
---|
279 | rtems_test_assert( RTEMS_SUCCESSFUL == sc ); |
---|
280 | |
---|
281 | test_static_key_table( |
---|
282 | &disk_container, |
---|
283 | STATIC_ALLOCATED_BLOCK_COUNT, |
---|
284 | STATIC_BLOCK_SIZE |
---|
285 | ); |
---|
286 | |
---|
287 | for ( i = 0; i < ( STATIC_BLOCK_SIZE * STATIC_ALLOCATED_BLOCK_COUNT ); ++i ) |
---|
288 | rtems_test_assert( 0 == disk_container.data[i] ); |
---|
289 | |
---|
290 | test_static_pattern( |
---|
291 | STATIC_PATTERN_SIZE, |
---|
292 | &disk_container.pattern[0] |
---|
293 | ); |
---|
294 | |
---|
295 | file_descriptor = open( device_name, O_RDWR ); |
---|
296 | rtems_test_assert( 0 <= file_descriptor ); |
---|
297 | |
---|
298 | test_disk_params( |
---|
299 | file_descriptor, |
---|
300 | STATIC_BLOCK_SIZE, |
---|
301 | STATIC_BLOCK_SIZE, |
---|
302 | STATIC_SIMULATED_BLOCK_COUNT |
---|
303 | ); |
---|
304 | |
---|
305 | test_writing( |
---|
306 | file_descriptor, |
---|
307 | STATIC_BLOCK_SIZE, |
---|
308 | STATIC_ALLOCATED_BLOCK_COUNT |
---|
309 | ); |
---|
310 | |
---|
311 | test_reading( |
---|
312 | file_descriptor, |
---|
313 | STATIC_BLOCK_SIZE, |
---|
314 | STATIC_ALLOCATED_BLOCK_COUNT, |
---|
315 | fill_pattern |
---|
316 | ); |
---|
317 | |
---|
318 | rv = close( file_descriptor ); |
---|
319 | rtems_test_assert( 0 == rv ); |
---|
320 | |
---|
321 | test_static_key_table( |
---|
322 | &disk_container, |
---|
323 | STATIC_ALLOCATED_BLOCK_COUNT, |
---|
324 | STATIC_BLOCK_SIZE |
---|
325 | ); |
---|
326 | |
---|
327 | for ( block_count = 0; |
---|
328 | block_count < STATIC_ALLOCATED_BLOCK_COUNT; |
---|
329 | block_count++ ) { |
---|
330 | for ( byte_count = 0; |
---|
331 | byte_count < ( STATIC_BLOCK_SIZE / sizeof( byte_count ) ); |
---|
332 | byte_count++ ) { |
---|
333 | rv = memcmp( &disk_container.data[byte_count * sizeof( byte_count )], |
---|
334 | &byte_count, |
---|
335 | sizeof( byte_count ) ); |
---|
336 | rtems_test_assert( 0 == rv ); |
---|
337 | } |
---|
338 | } |
---|
339 | |
---|
340 | test_static_pattern( |
---|
341 | STATIC_PATTERN_SIZE, |
---|
342 | &disk_container.pattern[0] |
---|
343 | ); |
---|
344 | } |
---|
345 | |
---|
346 | /* |
---|
347 | * The test sequence |
---|
348 | */ |
---|
349 | static |
---|
350 | void test( void ) |
---|
351 | { |
---|
352 | rtems_status_code sc; |
---|
353 | int rv; |
---|
354 | char device_name[] = "/dev/sda1"; |
---|
355 | uint32_t block_size; |
---|
356 | rtems_blkdev_bnum block_number; |
---|
357 | rtems_blkdev_bnum blocks_allocated; |
---|
358 | int file_descriptor; |
---|
359 | uint8_t fill_pattern = 0; |
---|
360 | |
---|
361 | |
---|
362 | sc = rtems_disk_io_initialize(); |
---|
363 | rtems_test_assert( sc == RTEMS_SUCCESSFUL ); |
---|
364 | |
---|
365 | block_size = 512; |
---|
366 | block_number = 4 * 2 * 1024; |
---|
367 | blocks_allocated = 8; |
---|
368 | sc = rtems_sparse_disk_create_and_register( |
---|
369 | "/dev/sda1", |
---|
370 | block_size, |
---|
371 | blocks_allocated, |
---|
372 | block_number, |
---|
373 | fill_pattern |
---|
374 | ); |
---|
375 | rtems_test_assert( RTEMS_SUCCESSFUL == sc ); |
---|
376 | |
---|
377 | /* Test reading and writing with sector size 512 and 8 such sectors |
---|
378 | * allocated. Block size will default to 512 */ |
---|
379 | test_device_io( |
---|
380 | device_name, |
---|
381 | block_size, |
---|
382 | block_size, |
---|
383 | block_number, |
---|
384 | blocks_allocated, |
---|
385 | fill_pattern |
---|
386 | ); |
---|
387 | |
---|
388 | file_descriptor = open( device_name, O_RDWR ); |
---|
389 | rtems_test_assert( 0 <= file_descriptor ); |
---|
390 | |
---|
391 | rv = rtems_disk_fd_set_block_size( file_descriptor, |
---|
392 | blocks_allocated * block_size ); |
---|
393 | rtems_test_assert( 0 == rv ); |
---|
394 | |
---|
395 | rv = close( file_descriptor ); |
---|
396 | rtems_test_assert( 0 == rv ); |
---|
397 | |
---|
398 | /* Block size was increased to 4k. Thus all to allocated disk space |
---|
399 | * corresponds to one block. Repeat the read write tests */ |
---|
400 | test_device_io( |
---|
401 | device_name, |
---|
402 | block_size * blocks_allocated, |
---|
403 | block_size, |
---|
404 | block_number, |
---|
405 | 1, |
---|
406 | fill_pattern |
---|
407 | ); |
---|
408 | |
---|
409 | rv = unlink( device_name ); |
---|
410 | rtems_test_assert( 0 == rv ); |
---|
411 | |
---|
412 | /* Do testing with a statically allocated disk. This permits white box |
---|
413 | * testing */ |
---|
414 | test_with_whitebox( device_name ); |
---|
415 | } |
---|
416 | |
---|
417 | static void Init( rtems_task_argument arg ) |
---|
418 | { |
---|
419 | (void) arg; |
---|
420 | TEST_BEGIN(); |
---|
421 | |
---|
422 | test(); |
---|
423 | |
---|
424 | TEST_END(); |
---|
425 | |
---|
426 | rtems_test_exit( 0 ); |
---|
427 | } |
---|
428 | |
---|
429 | #define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER |
---|
430 | #define CONFIGURE_APPLICATION_NEEDS_SIMPLE_CONSOLE_DRIVER |
---|
431 | #define CONFIGURE_APPLICATION_NEEDS_LIBBLOCK |
---|
432 | |
---|
433 | #define CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS 4 |
---|
434 | |
---|
435 | #define CONFIGURE_MAXIMUM_TASKS 1 |
---|
436 | #define CONFIGURE_MAXIMUM_SEMAPHORES 1 |
---|
437 | |
---|
438 | #define CONFIGURE_INIT_TASK_STACK_SIZE ( 16 * 1024 ) |
---|
439 | |
---|
440 | #define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION |
---|
441 | |
---|
442 | #define CONFIGURE_RTEMS_INIT_TASKS_TABLE |
---|
443 | |
---|
444 | #define CONFIGURE_INIT |
---|
445 | |
---|
446 | #include <rtems/confdefs.h> |
---|