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1 | |
2 | IPF Machine Check (MC) error inject tool | |
3 | ======================================== | |
4 | ||
5 | IPF Machine Check (MC) error inject tool is used to inject MC | |
6 | errors from Linux. The tool is a test bed for IPF MC work flow including | |
7 | hardware correctable error handling, OS recoverable error handling, MC | |
8 | event logging, etc. | |
9 | ||
10 | The tool includes two parts: a kernel driver and a user application | |
11 | sample. The driver provides interface to PAL to inject error | |
12 | and query error injection capabilities. The driver code is in | |
13 | arch/ia64/kernel/err_inject.c. The application sample (shown below) | |
14 | provides a combination of various errors and calls the driver's interface | |
15 | (sysfs interface) to inject errors or query error injection capabilities. | |
16 | ||
17 | The tool can be used to test Intel IPF machine MC handling capabilities. | |
18 | It's especially useful for people who can not access hardware MC injection | |
19 | tool to inject error. It's also very useful to integrate with other | |
20 | software test suits to do stressful testing on IPF. | |
21 | ||
22 | Below is a sample application as part of the whole tool. The sample | |
23 | can be used as a working test tool. Or it can be expanded to include | |
24 | more features. It also can be a integrated into a libary or other user | |
25 | application to have more thorough test. | |
26 | ||
27 | The sample application takes err.conf as error configuation input. Gcc | |
28 | compiles the code. After you install err_inject driver, you can run | |
29 | this sample application to inject errors. | |
30 | ||
31 | Errata: Itanium 2 Processors Specification Update lists some errata against | |
32 | the pal_mc_error_inject PAL procedure. The following err.conf has been tested | |
33 | on latest Montecito PAL. | |
34 | ||
35 | err.conf: | |
36 | ||
37 | #This is configuration file for err_inject_tool. | |
38 | #The format of the each line is: | |
39 | #cpu, loop, interval, err_type_info, err_struct_info, err_data_buffer | |
40 | #where | |
41 | # cpu: logical cpu number the error will be inject in. | |
42 | # loop: times the error will be injected. | |
43 | # interval: In second. every so often one error is injected. | |
44 | # err_type_info, err_struct_info: PAL parameters. | |
45 | # | |
46 | #Note: All values are hex w/o or w/ 0x prefix. | |
47 | ||
48 | ||
49 | #On cpu2, inject only total 0x10 errors, interval 5 seconds | |
50 | #corrected, data cache, hier-2, physical addr(assigned by tool code). | |
51 | #working on Montecito latest PAL. | |
52 | 2, 10, 5, 4101, 95 | |
53 | ||
54 | #On cpu4, inject and consume total 0x10 errors, interval 5 seconds | |
55 | #corrected, data cache, hier-2, physical addr(assigned by tool code). | |
56 | #working on Montecito latest PAL. | |
57 | 4, 10, 5, 4109, 95 | |
58 | ||
59 | #On cpu15, inject and consume total 0x10 errors, interval 5 seconds | |
60 | #recoverable, DTR0, hier-2. | |
61 | #working on Montecito latest PAL. | |
62 | 0xf, 0x10, 5, 4249, 15 | |
63 | ||
64 | The sample application source code: | |
65 | ||
66 | err_injection_tool.c: | |
67 | ||
68 | /* | |
69 | * This program is free software; you can redistribute it and/or modify | |
70 | * it under the terms of the GNU General Public License as published by | |
71 | * the Free Software Foundation; either version 2 of the License, or | |
72 | * (at your option) any later version. | |
73 | * | |
74 | * This program is distributed in the hope that it will be useful, but | |
75 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
76 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or | |
77 | * NON INFRINGEMENT. See the GNU General Public License for more | |
78 | * details. | |
79 | * | |
80 | * You should have received a copy of the GNU General Public License | |
81 | * along with this program; if not, write to the Free Software | |
82 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
83 | * | |
84 | * Copyright (C) 2006 Intel Co | |
85 | * Fenghua Yu <fenghua.yu@intel.com> | |
86 | * | |
87 | */ | |
88 | #include <sys/types.h> | |
89 | #include <sys/stat.h> | |
90 | #include <fcntl.h> | |
91 | #include <stdio.h> | |
92 | #include <sched.h> | |
93 | #include <unistd.h> | |
94 | #include <stdlib.h> | |
95 | #include <stdarg.h> | |
96 | #include <string.h> | |
97 | #include <errno.h> | |
98 | #include <time.h> | |
99 | #include <sys/ipc.h> | |
100 | #include <sys/sem.h> | |
101 | #include <sys/wait.h> | |
102 | #include <sys/mman.h> | |
103 | #include <sys/shm.h> | |
104 | ||
105 | #define MAX_FN_SIZE 256 | |
106 | #define MAX_BUF_SIZE 256 | |
107 | #define DATA_BUF_SIZE 256 | |
108 | #define NR_CPUS 512 | |
109 | #define MAX_TASK_NUM 2048 | |
110 | #define MIN_INTERVAL 5 // seconds | |
111 | #define ERR_DATA_BUFFER_SIZE 3 // Three 8-byte. | |
112 | #define PARA_FIELD_NUM 5 | |
113 | #define MASK_SIZE (NR_CPUS/64) | |
114 | #define PATH_FORMAT "/sys/devices/system/node/node0/cpu%d/err_inject/" | |
115 | ||
116 | int sched_setaffinity(pid_t pid, unsigned int len, unsigned long *mask); | |
117 | ||
118 | int verbose; | |
119 | #define vbprintf if (verbose) printf | |
120 | ||
121 | int log_info(int cpu, const char *fmt, ...) | |
122 | { | |
123 | FILE *log; | |
124 | char fn[MAX_FN_SIZE]; | |
125 | char buf[MAX_BUF_SIZE]; | |
126 | va_list args; | |
127 | ||
128 | sprintf(fn, "%d.log", cpu); | |
129 | log=fopen(fn, "a+"); | |
130 | if (log==NULL) { | |
131 | perror("Error open:"); | |
132 | return -1; | |
133 | } | |
134 | ||
135 | va_start(args, fmt); | |
136 | vprintf(fmt, args); | |
137 | memset(buf, 0, MAX_BUF_SIZE); | |
138 | vsprintf(buf, fmt, args); | |
139 | va_end(args); | |
140 | ||
141 | fwrite(buf, sizeof(buf), 1, log); | |
142 | fclose(log); | |
143 | ||
144 | return 0; | |
145 | } | |
146 | ||
147 | typedef unsigned long u64; | |
148 | typedef unsigned int u32; | |
149 | ||
150 | typedef union err_type_info_u { | |
151 | struct { | |
152 | u64 mode : 3, /* 0-2 */ | |
153 | err_inj : 3, /* 3-5 */ | |
154 | err_sev : 2, /* 6-7 */ | |
155 | err_struct : 5, /* 8-12 */ | |
156 | struct_hier : 3, /* 13-15 */ | |
157 | reserved : 48; /* 16-63 */ | |
158 | } err_type_info_u; | |
159 | u64 err_type_info; | |
160 | } err_type_info_t; | |
161 | ||
162 | typedef union err_struct_info_u { | |
163 | struct { | |
164 | u64 siv : 1, /* 0 */ | |
165 | c_t : 2, /* 1-2 */ | |
166 | cl_p : 3, /* 3-5 */ | |
167 | cl_id : 3, /* 6-8 */ | |
168 | cl_dp : 1, /* 9 */ | |
169 | reserved1 : 22, /* 10-31 */ | |
170 | tiv : 1, /* 32 */ | |
171 | trigger : 4, /* 33-36 */ | |
172 | trigger_pl : 3, /* 37-39 */ | |
173 | reserved2 : 24; /* 40-63 */ | |
174 | } err_struct_info_cache; | |
175 | struct { | |
176 | u64 siv : 1, /* 0 */ | |
177 | tt : 2, /* 1-2 */ | |
178 | tc_tr : 2, /* 3-4 */ | |
179 | tr_slot : 8, /* 5-12 */ | |
180 | reserved1 : 19, /* 13-31 */ | |
181 | tiv : 1, /* 32 */ | |
182 | trigger : 4, /* 33-36 */ | |
183 | trigger_pl : 3, /* 37-39 */ | |
184 | reserved2 : 24; /* 40-63 */ | |
185 | } err_struct_info_tlb; | |
186 | struct { | |
187 | u64 siv : 1, /* 0 */ | |
188 | regfile_id : 4, /* 1-4 */ | |
189 | reg_num : 7, /* 5-11 */ | |
190 | reserved1 : 20, /* 12-31 */ | |
191 | tiv : 1, /* 32 */ | |
192 | trigger : 4, /* 33-36 */ | |
193 | trigger_pl : 3, /* 37-39 */ | |
194 | reserved2 : 24; /* 40-63 */ | |
195 | } err_struct_info_register; | |
196 | struct { | |
197 | u64 reserved; | |
198 | } err_struct_info_bus_processor_interconnect; | |
199 | u64 err_struct_info; | |
200 | } err_struct_info_t; | |
201 | ||
202 | typedef union err_data_buffer_u { | |
203 | struct { | |
204 | u64 trigger_addr; /* 0-63 */ | |
205 | u64 inj_addr; /* 64-127 */ | |
206 | u64 way : 5, /* 128-132 */ | |
207 | index : 20, /* 133-152 */ | |
208 | : 39; /* 153-191 */ | |
209 | } err_data_buffer_cache; | |
210 | struct { | |
211 | u64 trigger_addr; /* 0-63 */ | |
212 | u64 inj_addr; /* 64-127 */ | |
213 | u64 way : 5, /* 128-132 */ | |
214 | index : 20, /* 133-152 */ | |
215 | reserved : 39; /* 153-191 */ | |
216 | } err_data_buffer_tlb; | |
217 | struct { | |
218 | u64 trigger_addr; /* 0-63 */ | |
219 | } err_data_buffer_register; | |
220 | struct { | |
221 | u64 reserved; /* 0-63 */ | |
222 | } err_data_buffer_bus_processor_interconnect; | |
223 | u64 err_data_buffer[ERR_DATA_BUFFER_SIZE]; | |
224 | } err_data_buffer_t; | |
225 | ||
226 | typedef union capabilities_u { | |
227 | struct { | |
228 | u64 i : 1, | |
229 | d : 1, | |
230 | rv : 1, | |
231 | tag : 1, | |
232 | data : 1, | |
233 | mesi : 1, | |
234 | dp : 1, | |
235 | reserved1 : 3, | |
236 | pa : 1, | |
237 | va : 1, | |
238 | wi : 1, | |
239 | reserved2 : 20, | |
240 | trigger : 1, | |
241 | trigger_pl : 1, | |
242 | reserved3 : 30; | |
243 | } capabilities_cache; | |
244 | struct { | |
245 | u64 d : 1, | |
246 | i : 1, | |
247 | rv : 1, | |
248 | tc : 1, | |
249 | tr : 1, | |
250 | reserved1 : 27, | |
251 | trigger : 1, | |
252 | trigger_pl : 1, | |
253 | reserved2 : 30; | |
254 | } capabilities_tlb; | |
255 | struct { | |
256 | u64 gr_b0 : 1, | |
257 | gr_b1 : 1, | |
258 | fr : 1, | |
259 | br : 1, | |
260 | pr : 1, | |
261 | ar : 1, | |
262 | cr : 1, | |
263 | rr : 1, | |
264 | pkr : 1, | |
265 | dbr : 1, | |
266 | ibr : 1, | |
267 | pmc : 1, | |
268 | pmd : 1, | |
269 | reserved1 : 3, | |
270 | regnum : 1, | |
271 | reserved2 : 15, | |
272 | trigger : 1, | |
273 | trigger_pl : 1, | |
274 | reserved3 : 30; | |
275 | } capabilities_register; | |
276 | struct { | |
277 | u64 reserved; | |
278 | } capabilities_bus_processor_interconnect; | |
279 | } capabilities_t; | |
280 | ||
281 | typedef struct resources_s { | |
282 | u64 ibr0 : 1, | |
283 | ibr2 : 1, | |
284 | ibr4 : 1, | |
285 | ibr6 : 1, | |
286 | dbr0 : 1, | |
287 | dbr2 : 1, | |
288 | dbr4 : 1, | |
289 | dbr6 : 1, | |
290 | reserved : 48; | |
291 | } resources_t; | |
292 | ||
293 | ||
294 | long get_page_size(void) | |
295 | { | |
296 | long page_size=sysconf(_SC_PAGESIZE); | |
297 | return page_size; | |
298 | } | |
299 | ||
300 | #define PAGE_SIZE (get_page_size()==-1?0x4000:get_page_size()) | |
301 | #define SHM_SIZE (2*PAGE_SIZE*NR_CPUS) | |
302 | #define SHM_VA 0x2000000100000000 | |
303 | ||
304 | int shmid; | |
305 | void *shmaddr; | |
306 | ||
307 | int create_shm(void) | |
308 | { | |
309 | key_t key; | |
310 | char fn[MAX_FN_SIZE]; | |
311 | ||
312 | /* cpu0 is always existing */ | |
313 | sprintf(fn, PATH_FORMAT, 0); | |
314 | if ((key = ftok(fn, 's')) == -1) { | |
315 | perror("ftok"); | |
316 | return -1; | |
317 | } | |
318 | ||
319 | shmid = shmget(key, SHM_SIZE, 0644 | IPC_CREAT); | |
320 | if (shmid == -1) { | |
321 | if (errno==EEXIST) { | |
322 | shmid = shmget(key, SHM_SIZE, 0); | |
323 | if (shmid == -1) { | |
324 | perror("shmget"); | |
325 | return -1; | |
326 | } | |
327 | } | |
328 | else { | |
329 | perror("shmget"); | |
330 | return -1; | |
331 | } | |
332 | } | |
333 | vbprintf("shmid=%d", shmid); | |
334 | ||
335 | /* connect to the segment: */ | |
336 | shmaddr = shmat(shmid, (void *)SHM_VA, 0); | |
337 | if (shmaddr == (void*)-1) { | |
338 | perror("shmat"); | |
339 | return -1; | |
340 | } | |
341 | ||
342 | memset(shmaddr, 0, SHM_SIZE); | |
343 | mlock(shmaddr, SHM_SIZE); | |
344 | ||
345 | return 0; | |
346 | } | |
347 | ||
348 | int free_shm() | |
349 | { | |
350 | munlock(shmaddr, SHM_SIZE); | |
351 | shmdt(shmaddr); | |
352 | semctl(shmid, 0, IPC_RMID); | |
353 | ||
354 | return 0; | |
355 | } | |
356 | ||
357 | #ifdef _SEM_SEMUN_UNDEFINED | |
358 | union semun | |
359 | { | |
360 | int val; | |
361 | struct semid_ds *buf; | |
362 | unsigned short int *array; | |
363 | struct seminfo *__buf; | |
364 | }; | |
365 | #endif | |
366 | ||
367 | u32 mode=1; /* 1: physical mode; 2: virtual mode. */ | |
368 | int one_lock=1; | |
369 | key_t key[NR_CPUS]; | |
370 | int semid[NR_CPUS]; | |
371 | ||
372 | int create_sem(int cpu) | |
373 | { | |
374 | union semun arg; | |
375 | char fn[MAX_FN_SIZE]; | |
376 | int sid; | |
377 | ||
378 | sprintf(fn, PATH_FORMAT, cpu); | |
379 | sprintf(fn, "%s/%s", fn, "err_type_info"); | |
380 | if ((key[cpu] = ftok(fn, 'e')) == -1) { | |
381 | perror("ftok"); | |
382 | return -1; | |
383 | } | |
384 | ||
385 | if (semid[cpu]!=0) | |
386 | return 0; | |
387 | ||
388 | /* clear old semaphore */ | |
389 | if ((sid = semget(key[cpu], 1, 0)) != -1) | |
390 | semctl(sid, 0, IPC_RMID); | |
391 | ||
392 | /* get one semaphore */ | |
393 | if ((semid[cpu] = semget(key[cpu], 1, IPC_CREAT | IPC_EXCL)) == -1) { | |
394 | perror("semget"); | |
395 | printf("Please remove semaphore with key=0x%lx, then run the tool.\n", | |
396 | (u64)key[cpu]); | |
397 | return -1; | |
398 | } | |
399 | ||
400 | vbprintf("semid[%d]=0x%lx, key[%d]=%lx\n",cpu,(u64)semid[cpu],cpu, | |
401 | (u64)key[cpu]); | |
402 | /* initialize the semaphore to 1: */ | |
403 | arg.val = 1; | |
404 | if (semctl(semid[cpu], 0, SETVAL, arg) == -1) { | |
405 | perror("semctl"); | |
406 | return -1; | |
407 | } | |
408 | ||
409 | return 0; | |
410 | } | |
411 | ||
412 | static int lock(int cpu) | |
413 | { | |
414 | struct sembuf lock; | |
415 | ||
416 | lock.sem_num = cpu; | |
417 | lock.sem_op = 1; | |
418 | semop(semid[cpu], &lock, 1); | |
419 | ||
420 | return 0; | |
421 | } | |
422 | ||
423 | static int unlock(int cpu) | |
424 | { | |
425 | struct sembuf unlock; | |
426 | ||
427 | unlock.sem_num = cpu; | |
428 | unlock.sem_op = -1; | |
429 | semop(semid[cpu], &unlock, 1); | |
430 | ||
431 | return 0; | |
432 | } | |
433 | ||
434 | void free_sem(int cpu) | |
435 | { | |
436 | semctl(semid[cpu], 0, IPC_RMID); | |
437 | } | |
438 | ||
439 | int wr_multi(char *fn, unsigned long *data, int size) | |
440 | { | |
441 | int fd; | |
442 | char buf[MAX_BUF_SIZE]; | |
443 | int ret; | |
444 | ||
445 | if (size==1) | |
446 | sprintf(buf, "%lx", *data); | |
447 | else if (size==3) | |
448 | sprintf(buf, "%lx,%lx,%lx", data[0], data[1], data[2]); | |
449 | else { | |
450 | fprintf(stderr,"write to file with wrong size!\n"); | |
451 | return -1; | |
452 | } | |
453 | ||
454 | fd=open(fn, O_RDWR); | |
455 | if (!fd) { | |
456 | perror("Error:"); | |
457 | return -1; | |
458 | } | |
459 | ret=write(fd, buf, sizeof(buf)); | |
460 | close(fd); | |
461 | return ret; | |
462 | } | |
463 | ||
464 | int wr(char *fn, unsigned long data) | |
465 | { | |
466 | return wr_multi(fn, &data, 1); | |
467 | } | |
468 | ||
469 | int rd(char *fn, unsigned long *data) | |
470 | { | |
471 | int fd; | |
472 | char buf[MAX_BUF_SIZE]; | |
473 | ||
474 | fd=open(fn, O_RDONLY); | |
475 | if (fd<0) { | |
476 | perror("Error:"); | |
477 | return -1; | |
478 | } | |
479 | read(fd, buf, MAX_BUF_SIZE); | |
480 | *data=strtoul(buf, NULL, 16); | |
481 | close(fd); | |
482 | return 0; | |
483 | } | |
484 | ||
485 | int rd_status(char *path, int *status) | |
486 | { | |
487 | char fn[MAX_FN_SIZE]; | |
488 | sprintf(fn, "%s/status", path); | |
489 | if (rd(fn, (u64*)status)<0) { | |
490 | perror("status reading error.\n"); | |
491 | return -1; | |
492 | } | |
493 | ||
494 | return 0; | |
495 | } | |
496 | ||
497 | int rd_capabilities(char *path, u64 *capabilities) | |
498 | { | |
499 | char fn[MAX_FN_SIZE]; | |
500 | sprintf(fn, "%s/capabilities", path); | |
501 | if (rd(fn, capabilities)<0) { | |
502 | perror("capabilities reading error.\n"); | |
503 | return -1; | |
504 | } | |
505 | ||
506 | return 0; | |
507 | } | |
508 | ||
509 | int rd_all(char *path) | |
510 | { | |
511 | unsigned long err_type_info, err_struct_info, err_data_buffer; | |
512 | int status; | |
513 | unsigned long capabilities, resources; | |
514 | char fn[MAX_FN_SIZE]; | |
515 | ||
516 | sprintf(fn, "%s/err_type_info", path); | |
517 | if (rd(fn, &err_type_info)<0) { | |
518 | perror("err_type_info reading error.\n"); | |
519 | return -1; | |
520 | } | |
521 | printf("err_type_info=%lx\n", err_type_info); | |
522 | ||
523 | sprintf(fn, "%s/err_struct_info", path); | |
524 | if (rd(fn, &err_struct_info)<0) { | |
525 | perror("err_struct_info reading error.\n"); | |
526 | return -1; | |
527 | } | |
528 | printf("err_struct_info=%lx\n", err_struct_info); | |
529 | ||
530 | sprintf(fn, "%s/err_data_buffer", path); | |
531 | if (rd(fn, &err_data_buffer)<0) { | |
532 | perror("err_data_buffer reading error.\n"); | |
533 | return -1; | |
534 | } | |
535 | printf("err_data_buffer=%lx\n", err_data_buffer); | |
536 | ||
537 | sprintf(fn, "%s/status", path); | |
538 | if (rd("status", (u64*)&status)<0) { | |
539 | perror("status reading error.\n"); | |
540 | return -1; | |
541 | } | |
542 | printf("status=%d\n", status); | |
543 | ||
544 | sprintf(fn, "%s/capabilities", path); | |
545 | if (rd(fn,&capabilities)<0) { | |
546 | perror("capabilities reading error.\n"); | |
547 | return -1; | |
548 | } | |
549 | printf("capabilities=%lx\n", capabilities); | |
550 | ||
551 | sprintf(fn, "%s/resources", path); | |
552 | if (rd(fn, &resources)<0) { | |
553 | perror("resources reading error.\n"); | |
554 | return -1; | |
555 | } | |
556 | printf("resources=%lx\n", resources); | |
557 | ||
558 | return 0; | |
559 | } | |
560 | ||
561 | int query_capabilities(char *path, err_type_info_t err_type_info, | |
562 | u64 *capabilities) | |
563 | { | |
564 | char fn[MAX_FN_SIZE]; | |
565 | err_struct_info_t err_struct_info; | |
566 | err_data_buffer_t err_data_buffer; | |
567 | ||
568 | err_struct_info.err_struct_info=0; | |
569 | memset(err_data_buffer.err_data_buffer, -1, ERR_DATA_BUFFER_SIZE*8); | |
570 | ||
571 | sprintf(fn, "%s/err_type_info", path); | |
572 | wr(fn, err_type_info.err_type_info); | |
573 | sprintf(fn, "%s/err_struct_info", path); | |
574 | wr(fn, 0x0); | |
575 | sprintf(fn, "%s/err_data_buffer", path); | |
576 | wr_multi(fn, err_data_buffer.err_data_buffer, ERR_DATA_BUFFER_SIZE); | |
577 | ||
578 | // Fire pal_mc_error_inject procedure. | |
579 | sprintf(fn, "%s/call_start", path); | |
580 | wr(fn, mode); | |
581 | ||
582 | if (rd_capabilities(path, capabilities)<0) | |
583 | return -1; | |
584 | ||
585 | return 0; | |
586 | } | |
587 | ||
588 | int query_all_capabilities() | |
589 | { | |
590 | int status; | |
591 | err_type_info_t err_type_info; | |
592 | int err_sev, err_struct, struct_hier; | |
593 | int cap=0; | |
594 | u64 capabilities; | |
595 | char path[MAX_FN_SIZE]; | |
596 | ||
597 | err_type_info.err_type_info=0; // Initial | |
598 | err_type_info.err_type_info_u.mode=0; // Query mode; | |
599 | err_type_info.err_type_info_u.err_inj=0; | |
600 | ||
601 | printf("All capabilities implemented in pal_mc_error_inject:\n"); | |
602 | sprintf(path, PATH_FORMAT ,0); | |
603 | for (err_sev=0;err_sev<3;err_sev++) | |
604 | for (err_struct=0;err_struct<5;err_struct++) | |
605 | for (struct_hier=0;struct_hier<5;struct_hier++) | |
606 | { | |
607 | status=-1; | |
608 | capabilities=0; | |
609 | err_type_info.err_type_info_u.err_sev=err_sev; | |
610 | err_type_info.err_type_info_u.err_struct=err_struct; | |
611 | err_type_info.err_type_info_u.struct_hier=struct_hier; | |
612 | ||
613 | if (query_capabilities(path, err_type_info, &capabilities)<0) | |
614 | continue; | |
615 | ||
616 | if (rd_status(path, &status)<0) | |
617 | continue; | |
618 | ||
619 | if (status==0) { | |
620 | cap=1; | |
621 | printf("For err_sev=%d, err_struct=%d, struct_hier=%d: ", | |
622 | err_sev, err_struct, struct_hier); | |
623 | printf("capabilities 0x%lx\n", capabilities); | |
624 | } | |
625 | } | |
626 | if (!cap) { | |
627 | printf("No capabilities supported.\n"); | |
628 | return 0; | |
629 | } | |
630 | ||
631 | return 0; | |
632 | } | |
633 | ||
634 | int err_inject(int cpu, char *path, err_type_info_t err_type_info, | |
635 | err_struct_info_t err_struct_info, | |
636 | err_data_buffer_t err_data_buffer) | |
637 | { | |
638 | int status; | |
639 | char fn[MAX_FN_SIZE]; | |
640 | ||
641 | log_info(cpu, "err_type_info=%lx, err_struct_info=%lx, ", | |
642 | err_type_info.err_type_info, | |
643 | err_struct_info.err_struct_info); | |
644 | log_info(cpu,"err_data_buffer=[%lx,%lx,%lx]\n", | |
645 | err_data_buffer.err_data_buffer[0], | |
646 | err_data_buffer.err_data_buffer[1], | |
647 | err_data_buffer.err_data_buffer[2]); | |
648 | sprintf(fn, "%s/err_type_info", path); | |
649 | wr(fn, err_type_info.err_type_info); | |
650 | sprintf(fn, "%s/err_struct_info", path); | |
651 | wr(fn, err_struct_info.err_struct_info); | |
652 | sprintf(fn, "%s/err_data_buffer", path); | |
653 | wr_multi(fn, err_data_buffer.err_data_buffer, ERR_DATA_BUFFER_SIZE); | |
654 | ||
655 | // Fire pal_mc_error_inject procedure. | |
656 | sprintf(fn, "%s/call_start", path); | |
657 | wr(fn,mode); | |
658 | ||
659 | if (rd_status(path, &status)<0) { | |
660 | vbprintf("fail: read status\n"); | |
661 | return -100; | |
662 | } | |
663 | ||
664 | if (status!=0) { | |
665 | log_info(cpu, "fail: status=%d\n", status); | |
666 | return status; | |
667 | } | |
668 | ||
669 | return status; | |
670 | } | |
671 | ||
672 | static int construct_data_buf(char *path, err_type_info_t err_type_info, | |
673 | err_struct_info_t err_struct_info, | |
674 | err_data_buffer_t *err_data_buffer, | |
675 | void *va1) | |
676 | { | |
677 | char fn[MAX_FN_SIZE]; | |
678 | u64 virt_addr=0, phys_addr=0; | |
679 | ||
680 | vbprintf("va1=%lx\n", (u64)va1); | |
681 | memset(&err_data_buffer->err_data_buffer_cache, 0, ERR_DATA_BUFFER_SIZE*8); | |
682 | ||
683 | switch (err_type_info.err_type_info_u.err_struct) { | |
684 | case 1: // Cache | |
685 | switch (err_struct_info.err_struct_info_cache.cl_id) { | |
686 | case 1: //Virtual addr | |
687 | err_data_buffer->err_data_buffer_cache.inj_addr=(u64)va1; | |
688 | break; | |
689 | case 2: //Phys addr | |
690 | sprintf(fn, "%s/virtual_to_phys", path); | |
691 | virt_addr=(u64)va1; | |
692 | if (wr(fn,virt_addr)<0) | |
693 | return -1; | |
694 | rd(fn, &phys_addr); | |
695 | err_data_buffer->err_data_buffer_cache.inj_addr=phys_addr; | |
696 | break; | |
697 | default: | |
698 | printf("Not supported cl_id\n"); | |
699 | break; | |
700 | } | |
701 | break; | |
702 | case 2: // TLB | |
703 | break; | |
704 | case 3: // Register file | |
705 | break; | |
706 | case 4: // Bus/system interconnect | |
707 | default: | |
708 | printf("Not supported err_struct\n"); | |
709 | break; | |
710 | } | |
711 | ||
712 | return 0; | |
713 | } | |
714 | ||
715 | typedef struct { | |
716 | u64 cpu; | |
717 | u64 loop; | |
718 | u64 interval; | |
719 | u64 err_type_info; | |
720 | u64 err_struct_info; | |
721 | u64 err_data_buffer[ERR_DATA_BUFFER_SIZE]; | |
722 | } parameters_t; | |
723 | ||
724 | parameters_t line_para; | |
725 | int para; | |
726 | ||
727 | static int empty_data_buffer(u64 *err_data_buffer) | |
728 | { | |
729 | int empty=1; | |
730 | int i; | |
731 | ||
732 | for (i=0;i<ERR_DATA_BUFFER_SIZE; i++) | |
733 | if (err_data_buffer[i]!=-1) | |
734 | empty=0; | |
735 | ||
736 | return empty; | |
737 | } | |
738 | ||
739 | int err_inj() | |
740 | { | |
741 | err_type_info_t err_type_info; | |
742 | err_struct_info_t err_struct_info; | |
743 | err_data_buffer_t err_data_buffer; | |
744 | int count; | |
745 | FILE *fp; | |
746 | unsigned long cpu, loop, interval, err_type_info_conf, err_struct_info_conf; | |
747 | u64 err_data_buffer_conf[ERR_DATA_BUFFER_SIZE]; | |
748 | int num; | |
749 | int i; | |
750 | char path[MAX_FN_SIZE]; | |
751 | parameters_t parameters[MAX_TASK_NUM]={}; | |
752 | pid_t child_pid[MAX_TASK_NUM]; | |
753 | time_t current_time; | |
754 | int status; | |
755 | ||
756 | if (!para) { | |
757 | fp=fopen("err.conf", "r"); | |
758 | if (fp==NULL) { | |
759 | perror("Error open err.conf"); | |
760 | return -1; | |
761 | } | |
762 | ||
763 | num=0; | |
764 | while (!feof(fp)) { | |
765 | char buf[256]; | |
766 | memset(buf,0,256); | |
767 | fgets(buf, 256, fp); | |
768 | count=sscanf(buf, "%lx, %lx, %lx, %lx, %lx, %lx, %lx, %lx\n", | |
769 | &cpu, &loop, &interval,&err_type_info_conf, | |
770 | &err_struct_info_conf, | |
771 | &err_data_buffer_conf[0], | |
772 | &err_data_buffer_conf[1], | |
773 | &err_data_buffer_conf[2]); | |
774 | if (count!=PARA_FIELD_NUM+3) { | |
775 | err_data_buffer_conf[0]=-1; | |
776 | err_data_buffer_conf[1]=-1; | |
777 | err_data_buffer_conf[2]=-1; | |
778 | count=sscanf(buf, "%lx, %lx, %lx, %lx, %lx\n", | |
779 | &cpu, &loop, &interval,&err_type_info_conf, | |
780 | &err_struct_info_conf); | |
781 | if (count!=PARA_FIELD_NUM) | |
782 | continue; | |
783 | } | |
784 | ||
785 | parameters[num].cpu=cpu; | |
786 | parameters[num].loop=loop; | |
787 | parameters[num].interval= interval>MIN_INTERVAL | |
788 | ?interval:MIN_INTERVAL; | |
789 | parameters[num].err_type_info=err_type_info_conf; | |
790 | parameters[num].err_struct_info=err_struct_info_conf; | |
791 | memcpy(parameters[num++].err_data_buffer, | |
792 | err_data_buffer_conf,ERR_DATA_BUFFER_SIZE*8) ; | |
793 | ||
794 | if (num>=MAX_TASK_NUM) | |
795 | break; | |
796 | } | |
797 | } | |
798 | else { | |
799 | parameters[0].cpu=line_para.cpu; | |
800 | parameters[0].loop=line_para.loop; | |
801 | parameters[0].interval= line_para.interval>MIN_INTERVAL | |
802 | ?line_para.interval:MIN_INTERVAL; | |
803 | parameters[0].err_type_info=line_para.err_type_info; | |
804 | parameters[0].err_struct_info=line_para.err_struct_info; | |
805 | memcpy(parameters[0].err_data_buffer, | |
806 | line_para.err_data_buffer,ERR_DATA_BUFFER_SIZE*8) ; | |
807 | ||
808 | num=1; | |
809 | } | |
810 | ||
811 | /* Create semaphore: If one_lock, one semaphore for all processors. | |
812 | Otherwise, one sempaphore for each processor. */ | |
813 | if (one_lock) { | |
814 | if (create_sem(0)) { | |
815 | printf("Can not create semaphore...exit\n"); | |
816 | free_sem(0); | |
817 | return -1; | |
818 | } | |
819 | } | |
820 | else { | |
821 | for (i=0;i<num;i++) { | |
822 | if (create_sem(parameters[i].cpu)) { | |
823 | printf("Can not create semaphore for cpu%d...exit\n",i); | |
824 | free_sem(parameters[num].cpu); | |
825 | return -1; | |
826 | } | |
827 | } | |
828 | } | |
829 | ||
830 | /* Create a shm segment which will be used to inject/consume errors on.*/ | |
831 | if (create_shm()==-1) { | |
832 | printf("Error to create shm...exit\n"); | |
833 | return -1; | |
834 | } | |
835 | ||
836 | for (i=0;i<num;i++) { | |
837 | pid_t pid; | |
838 | ||
839 | current_time=time(NULL); | |
840 | log_info(parameters[i].cpu, "\nBegine at %s", ctime(¤t_time)); | |
841 | log_info(parameters[i].cpu, "Configurations:\n"); | |
842 | log_info(parameters[i].cpu,"On cpu%ld: loop=%lx, interval=%lx(s)", | |
843 | parameters[i].cpu, | |
844 | parameters[i].loop, | |
845 | parameters[i].interval); | |
846 | log_info(parameters[i].cpu," err_type_info=%lx,err_struct_info=%lx\n", | |
847 | parameters[i].err_type_info, | |
848 | parameters[i].err_struct_info); | |
849 | ||
850 | sprintf(path, PATH_FORMAT, (int)parameters[i].cpu); | |
851 | err_type_info.err_type_info=parameters[i].err_type_info; | |
852 | err_struct_info.err_struct_info=parameters[i].err_struct_info; | |
853 | memcpy(err_data_buffer.err_data_buffer, | |
854 | parameters[i].err_data_buffer, | |
855 | ERR_DATA_BUFFER_SIZE*8); | |
856 | ||
857 | pid=fork(); | |
858 | if (pid==0) { | |
859 | unsigned long mask[MASK_SIZE]; | |
860 | int j, k; | |
861 | ||
862 | void *va1, *va2; | |
863 | ||
864 | /* Allocate two memory areas va1 and va2 in shm */ | |
865 | va1=shmaddr+parameters[i].cpu*PAGE_SIZE; | |
866 | va2=shmaddr+parameters[i].cpu*PAGE_SIZE+PAGE_SIZE; | |
867 | ||
868 | vbprintf("va1=%lx, va2=%lx\n", (u64)va1, (u64)va2); | |
869 | memset(va1, 0x1, PAGE_SIZE); | |
870 | memset(va2, 0x2, PAGE_SIZE); | |
871 | ||
872 | if (empty_data_buffer(err_data_buffer.err_data_buffer)) | |
873 | /* If not specified yet, construct data buffer | |
874 | * with va1 | |
875 | */ | |
876 | construct_data_buf(path, err_type_info, | |
877 | err_struct_info, &err_data_buffer,va1); | |
878 | ||
879 | for (j=0;j<MASK_SIZE;j++) | |
880 | mask[j]=0; | |
881 | ||
882 | cpu=parameters[i].cpu; | |
883 | k = cpu%64; | |
884 | j = cpu/64; | |
885 | mask[j]=1<<k; | |
886 | ||
887 | if (sched_setaffinity(0, MASK_SIZE*8, mask)==-1) { | |
888 | perror("Error sched_setaffinity:"); | |
889 | return -1; | |
890 | } | |
891 | ||
892 | for (j=0; j<parameters[i].loop; j++) { | |
893 | log_info(parameters[i].cpu,"Injection "); | |
894 | log_info(parameters[i].cpu,"on cpu%ld: #%d/%ld ", | |
895 | ||
896 | parameters[i].cpu,j+1, parameters[i].loop); | |
897 | ||
898 | /* Hold the lock */ | |
899 | if (one_lock) | |
900 | lock(0); | |
901 | else | |
902 | /* Hold lock on this cpu */ | |
903 | lock(parameters[i].cpu); | |
904 | ||
905 | if ((status=err_inject(parameters[i].cpu, | |
906 | path, err_type_info, | |
907 | err_struct_info, err_data_buffer)) | |
908 | ==0) { | |
909 | /* consume the error for "inject only"*/ | |
910 | memcpy(va2, va1, PAGE_SIZE); | |
911 | memcpy(va1, va2, PAGE_SIZE); | |
912 | log_info(parameters[i].cpu, | |
913 | "successful\n"); | |
914 | } | |
915 | else { | |
916 | log_info(parameters[i].cpu,"fail:"); | |
917 | log_info(parameters[i].cpu, | |
918 | "status=%d\n", status); | |
919 | unlock(parameters[i].cpu); | |
920 | break; | |
921 | } | |
922 | if (one_lock) | |
923 | /* Release the lock */ | |
924 | unlock(0); | |
925 | /* Release lock on this cpu */ | |
926 | else | |
927 | unlock(parameters[i].cpu); | |
928 | ||
929 | if (j < parameters[i].loop-1) | |
930 | sleep(parameters[i].interval); | |
931 | } | |
932 | current_time=time(NULL); | |
933 | log_info(parameters[i].cpu, "Done at %s", ctime(¤t_time)); | |
934 | return 0; | |
935 | } | |
936 | else if (pid<0) { | |
937 | perror("Error fork:"); | |
938 | continue; | |
939 | } | |
940 | child_pid[i]=pid; | |
941 | } | |
942 | for (i=0;i<num;i++) | |
943 | waitpid(child_pid[i], NULL, 0); | |
944 | ||
945 | if (one_lock) | |
946 | free_sem(0); | |
947 | else | |
948 | for (i=0;i<num;i++) | |
949 | free_sem(parameters[i].cpu); | |
950 | ||
951 | printf("All done.\n"); | |
952 | ||
953 | return 0; | |
954 | } | |
955 | ||
956 | void help() | |
957 | { | |
958 | printf("err_inject_tool:\n"); | |
959 | printf("\t-q: query all capabilities. default: off\n"); | |
960 | printf("\t-m: procedure mode. 1: physical 2: virtual. default: 1\n"); | |
961 | printf("\t-i: inject errors. default: off\n"); | |
962 | printf("\t-l: one lock per cpu. default: one lock for all\n"); | |
963 | printf("\t-e: error parameters:\n"); | |
964 | printf("\t\tcpu,loop,interval,err_type_info,err_struct_info[,err_data_buffer[0],err_data_buffer[1],err_data_buffer[2]]\n"); | |
965 | printf("\t\t cpu: logical cpu number the error will be inject in.\n"); | |
966 | printf("\t\t loop: times the error will be injected.\n"); | |
967 | printf("\t\t interval: In second. every so often one error is injected.\n"); | |
968 | printf("\t\t err_type_info, err_struct_info: PAL parameters.\n"); | |
969 | printf("\t\t err_data_buffer: PAL parameter. Optional. If not present,\n"); | |
970 | printf("\t\t it's constructed by tool automatically. Be\n"); | |
971 | printf("\t\t careful to provide err_data_buffer and make\n"); | |
972 | printf("\t\t sure it's working with the environment.\n"); | |
973 | printf("\t Note:no space between error parameters.\n"); | |
974 | printf("\t default: Take error parameters from err.conf instead of command line.\n"); | |
975 | printf("\t-v: verbose. default: off\n"); | |
976 | printf("\t-h: help\n\n"); | |
977 | printf("The tool will take err.conf file as "); | |
978 | printf("input to inject single or multiple errors "); | |
979 | printf("on one or multiple cpus in parallel.\n"); | |
980 | } | |
981 | ||
982 | int main(int argc, char **argv) | |
983 | { | |
984 | char c; | |
985 | int do_err_inj=0; | |
986 | int do_query_all=0; | |
987 | int count; | |
988 | u32 m; | |
989 | ||
990 | /* Default one lock for all cpu's */ | |
991 | one_lock=1; | |
992 | while ((c = getopt(argc, argv, "m:iqvhle:")) != EOF) | |
993 | switch (c) { | |
994 | case 'm': /* Procedure mode. 1: phys 2: virt */ | |
995 | count=sscanf(optarg, "%x", &m); | |
996 | if (count!=1 || (m!=1 && m!=2)) { | |
997 | printf("Wrong mode number.\n"); | |
998 | help(); | |
999 | return -1; | |
1000 | } | |
1001 | mode=m; | |
1002 | break; | |
1003 | case 'i': /* Inject errors */ | |
1004 | do_err_inj=1; | |
1005 | break; | |
1006 | case 'q': /* Query */ | |
1007 | do_query_all=1; | |
1008 | break; | |
1009 | case 'v': /* Verbose */ | |
1010 | verbose=1; | |
1011 | break; | |
1012 | case 'l': /* One lock per cpu */ | |
1013 | one_lock=0; | |
1014 | break; | |
1015 | case 'e': /* error arguments */ | |
1016 | /* Take parameters: | |
1017 | * #cpu, loop, interval, err_type_info, err_struct_info[, err_data_buffer] | |
1018 | * err_data_buffer is optional. Recommend not to specify | |
1019 | * err_data_buffer. Better to use tool to generate it. | |
1020 | */ | |
1021 | count=sscanf(optarg, | |
1022 | "%lx, %lx, %lx, %lx, %lx, %lx, %lx, %lx\n", | |
1023 | &line_para.cpu, | |
1024 | &line_para.loop, | |
1025 | &line_para.interval, | |
1026 | &line_para.err_type_info, | |
1027 | &line_para.err_struct_info, | |
1028 | &line_para.err_data_buffer[0], | |
1029 | &line_para.err_data_buffer[1], | |
1030 | &line_para.err_data_buffer[2]); | |
1031 | if (count!=PARA_FIELD_NUM+3) { | |
1032 | line_para.err_data_buffer[0]=-1, | |
1033 | line_para.err_data_buffer[1]=-1, | |
1034 | line_para.err_data_buffer[2]=-1; | |
1035 | count=sscanf(optarg, "%lx, %lx, %lx, %lx, %lx\n", | |
1036 | &line_para.cpu, | |
1037 | &line_para.loop, | |
1038 | &line_para.interval, | |
1039 | &line_para.err_type_info, | |
1040 | &line_para.err_struct_info); | |
1041 | if (count!=PARA_FIELD_NUM) { | |
1042 | printf("Wrong error arguments.\n"); | |
1043 | help(); | |
1044 | return -1; | |
1045 | } | |
1046 | } | |
1047 | para=1; | |
1048 | break; | |
1049 | continue; | |
1050 | break; | |
1051 | case 'h': | |
1052 | help(); | |
1053 | return 0; | |
1054 | default: | |
1055 | break; | |
1056 | } | |
1057 | ||
1058 | if (do_query_all) | |
1059 | query_all_capabilities(); | |
1060 | if (do_err_inj) | |
1061 | err_inj(); | |
1062 | ||
1063 | if (!do_query_all && !do_err_inj) | |
1064 | help(); | |
1065 | ||
1066 | return 0; | |
1067 | } | |
1068 |