1068 lines
26 KiB
ReStructuredText
1068 lines
26 KiB
ReStructuredText
========================================
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IPF Machine Check (MC) error inject tool
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========================================
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IPF Machine Check (MC) error inject tool is used to inject MC
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errors from Linux. The tool is a test bed for IPF MC work flow including
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hardware correctable error handling, OS recoverable error handling, MC
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event logging, etc.
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The tool includes two parts: a kernel driver and a user application
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sample. The driver provides interface to PAL to inject error
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and query error injection capabilities. The driver code is in
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arch/ia64/kernel/err_inject.c. The application sample (shown below)
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provides a combination of various errors and calls the driver's interface
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(sysfs interface) to inject errors or query error injection capabilities.
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The tool can be used to test Intel IPF machine MC handling capabilities.
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It's especially useful for people who can not access hardware MC injection
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tool to inject error. It's also very useful to integrate with other
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software test suits to do stressful testing on IPF.
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Below is a sample application as part of the whole tool. The sample
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can be used as a working test tool. Or it can be expanded to include
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more features. It also can be a integrated into a library or other user
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application to have more thorough test.
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The sample application takes err.conf as error configuration input. GCC
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compiles the code. After you install err_inject driver, you can run
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this sample application to inject errors.
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Errata: Itanium 2 Processors Specification Update lists some errata against
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the pal_mc_error_inject PAL procedure. The following err.conf has been tested
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on latest Montecito PAL.
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err.conf::
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#This is configuration file for err_inject_tool.
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#The format of the each line is:
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#cpu, loop, interval, err_type_info, err_struct_info, err_data_buffer
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#where
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# cpu: logical cpu number the error will be inject in.
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# loop: times the error will be injected.
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# interval: In second. every so often one error is injected.
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# err_type_info, err_struct_info: PAL parameters.
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#
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#Note: All values are hex w/o or w/ 0x prefix.
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#On cpu2, inject only total 0x10 errors, interval 5 seconds
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#corrected, data cache, hier-2, physical addr(assigned by tool code).
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#working on Montecito latest PAL.
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2, 10, 5, 4101, 95
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#On cpu4, inject and consume total 0x10 errors, interval 5 seconds
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#corrected, data cache, hier-2, physical addr(assigned by tool code).
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#working on Montecito latest PAL.
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4, 10, 5, 4109, 95
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#On cpu15, inject and consume total 0x10 errors, interval 5 seconds
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#recoverable, DTR0, hier-2.
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#working on Montecito latest PAL.
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0xf, 0x10, 5, 4249, 15
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The sample application source code:
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err_injection_tool.c::
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
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* NON INFRINGEMENT. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* Copyright (C) 2006 Intel Co
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* Fenghua Yu <fenghua.yu@intel.com>
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*
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <sched.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <string.h>
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#include <errno.h>
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#include <time.h>
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#include <sys/ipc.h>
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#include <sys/sem.h>
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#include <sys/wait.h>
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#include <sys/mman.h>
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#include <sys/shm.h>
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#define MAX_FN_SIZE 256
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#define MAX_BUF_SIZE 256
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#define DATA_BUF_SIZE 256
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#define NR_CPUS 512
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#define MAX_TASK_NUM 2048
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#define MIN_INTERVAL 5 // seconds
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#define ERR_DATA_BUFFER_SIZE 3 // Three 8-byte.
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#define PARA_FIELD_NUM 5
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#define MASK_SIZE (NR_CPUS/64)
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#define PATH_FORMAT "/sys/devices/system/cpu/cpu%d/err_inject/"
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int sched_setaffinity(pid_t pid, unsigned int len, unsigned long *mask);
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int verbose;
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#define vbprintf if (verbose) printf
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int log_info(int cpu, const char *fmt, ...)
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{
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FILE *log;
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char fn[MAX_FN_SIZE];
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char buf[MAX_BUF_SIZE];
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va_list args;
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sprintf(fn, "%d.log", cpu);
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log=fopen(fn, "a+");
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if (log==NULL) {
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perror("Error open:");
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return -1;
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}
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va_start(args, fmt);
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vprintf(fmt, args);
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memset(buf, 0, MAX_BUF_SIZE);
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vsprintf(buf, fmt, args);
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va_end(args);
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fwrite(buf, sizeof(buf), 1, log);
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fclose(log);
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return 0;
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}
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typedef unsigned long u64;
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typedef unsigned int u32;
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typedef union err_type_info_u {
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struct {
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u64 mode : 3, /* 0-2 */
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err_inj : 3, /* 3-5 */
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err_sev : 2, /* 6-7 */
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err_struct : 5, /* 8-12 */
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struct_hier : 3, /* 13-15 */
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reserved : 48; /* 16-63 */
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} err_type_info_u;
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u64 err_type_info;
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} err_type_info_t;
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typedef union err_struct_info_u {
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struct {
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u64 siv : 1, /* 0 */
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c_t : 2, /* 1-2 */
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cl_p : 3, /* 3-5 */
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cl_id : 3, /* 6-8 */
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cl_dp : 1, /* 9 */
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reserved1 : 22, /* 10-31 */
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tiv : 1, /* 32 */
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trigger : 4, /* 33-36 */
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trigger_pl : 3, /* 37-39 */
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reserved2 : 24; /* 40-63 */
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} err_struct_info_cache;
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struct {
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u64 siv : 1, /* 0 */
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tt : 2, /* 1-2 */
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tc_tr : 2, /* 3-4 */
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tr_slot : 8, /* 5-12 */
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reserved1 : 19, /* 13-31 */
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tiv : 1, /* 32 */
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trigger : 4, /* 33-36 */
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trigger_pl : 3, /* 37-39 */
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reserved2 : 24; /* 40-63 */
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} err_struct_info_tlb;
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struct {
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u64 siv : 1, /* 0 */
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regfile_id : 4, /* 1-4 */
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reg_num : 7, /* 5-11 */
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reserved1 : 20, /* 12-31 */
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tiv : 1, /* 32 */
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trigger : 4, /* 33-36 */
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trigger_pl : 3, /* 37-39 */
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reserved2 : 24; /* 40-63 */
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} err_struct_info_register;
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struct {
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u64 reserved;
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} err_struct_info_bus_processor_interconnect;
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u64 err_struct_info;
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} err_struct_info_t;
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typedef union err_data_buffer_u {
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struct {
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u64 trigger_addr; /* 0-63 */
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u64 inj_addr; /* 64-127 */
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u64 way : 5, /* 128-132 */
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index : 20, /* 133-152 */
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: 39; /* 153-191 */
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} err_data_buffer_cache;
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struct {
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u64 trigger_addr; /* 0-63 */
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u64 inj_addr; /* 64-127 */
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u64 way : 5, /* 128-132 */
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index : 20, /* 133-152 */
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reserved : 39; /* 153-191 */
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} err_data_buffer_tlb;
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struct {
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u64 trigger_addr; /* 0-63 */
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} err_data_buffer_register;
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struct {
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u64 reserved; /* 0-63 */
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} err_data_buffer_bus_processor_interconnect;
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u64 err_data_buffer[ERR_DATA_BUFFER_SIZE];
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} err_data_buffer_t;
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typedef union capabilities_u {
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struct {
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u64 i : 1,
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d : 1,
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rv : 1,
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tag : 1,
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data : 1,
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mesi : 1,
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dp : 1,
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reserved1 : 3,
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pa : 1,
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va : 1,
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wi : 1,
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reserved2 : 20,
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trigger : 1,
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trigger_pl : 1,
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reserved3 : 30;
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} capabilities_cache;
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struct {
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u64 d : 1,
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i : 1,
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rv : 1,
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tc : 1,
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tr : 1,
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reserved1 : 27,
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trigger : 1,
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trigger_pl : 1,
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reserved2 : 30;
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} capabilities_tlb;
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struct {
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u64 gr_b0 : 1,
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gr_b1 : 1,
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fr : 1,
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br : 1,
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pr : 1,
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ar : 1,
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cr : 1,
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rr : 1,
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pkr : 1,
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dbr : 1,
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ibr : 1,
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pmc : 1,
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pmd : 1,
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reserved1 : 3,
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regnum : 1,
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reserved2 : 15,
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trigger : 1,
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trigger_pl : 1,
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reserved3 : 30;
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} capabilities_register;
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struct {
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u64 reserved;
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} capabilities_bus_processor_interconnect;
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} capabilities_t;
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typedef struct resources_s {
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u64 ibr0 : 1,
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ibr2 : 1,
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ibr4 : 1,
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ibr6 : 1,
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dbr0 : 1,
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dbr2 : 1,
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dbr4 : 1,
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dbr6 : 1,
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reserved : 48;
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} resources_t;
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long get_page_size(void)
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{
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long page_size=sysconf(_SC_PAGESIZE);
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return page_size;
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}
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#define PAGE_SIZE (get_page_size()==-1?0x4000:get_page_size())
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#define SHM_SIZE (2*PAGE_SIZE*NR_CPUS)
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#define SHM_VA 0x2000000100000000
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int shmid;
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void *shmaddr;
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int create_shm(void)
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{
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key_t key;
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char fn[MAX_FN_SIZE];
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/* cpu0 is always existing */
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sprintf(fn, PATH_FORMAT, 0);
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if ((key = ftok(fn, 's')) == -1) {
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perror("ftok");
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return -1;
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}
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shmid = shmget(key, SHM_SIZE, 0644 | IPC_CREAT);
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if (shmid == -1) {
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if (errno==EEXIST) {
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shmid = shmget(key, SHM_SIZE, 0);
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if (shmid == -1) {
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perror("shmget");
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return -1;
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}
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}
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else {
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perror("shmget");
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return -1;
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}
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}
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vbprintf("shmid=%d", shmid);
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/* connect to the segment: */
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shmaddr = shmat(shmid, (void *)SHM_VA, 0);
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if (shmaddr == (void*)-1) {
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perror("shmat");
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return -1;
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}
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memset(shmaddr, 0, SHM_SIZE);
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mlock(shmaddr, SHM_SIZE);
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return 0;
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}
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int free_shm()
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{
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munlock(shmaddr, SHM_SIZE);
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shmdt(shmaddr);
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semctl(shmid, 0, IPC_RMID);
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return 0;
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}
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#ifdef _SEM_SEMUN_UNDEFINED
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union semun
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{
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int val;
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struct semid_ds *buf;
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unsigned short int *array;
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struct seminfo *__buf;
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};
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#endif
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u32 mode=1; /* 1: physical mode; 2: virtual mode. */
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int one_lock=1;
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key_t key[NR_CPUS];
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int semid[NR_CPUS];
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int create_sem(int cpu)
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{
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union semun arg;
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char fn[MAX_FN_SIZE];
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int sid;
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sprintf(fn, PATH_FORMAT, cpu);
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sprintf(fn, "%s/%s", fn, "err_type_info");
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if ((key[cpu] = ftok(fn, 'e')) == -1) {
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perror("ftok");
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return -1;
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}
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if (semid[cpu]!=0)
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return 0;
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/* clear old semaphore */
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if ((sid = semget(key[cpu], 1, 0)) != -1)
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semctl(sid, 0, IPC_RMID);
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/* get one semaphore */
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if ((semid[cpu] = semget(key[cpu], 1, IPC_CREAT | IPC_EXCL)) == -1) {
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perror("semget");
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printf("Please remove semaphore with key=0x%lx, then run the tool.\n",
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(u64)key[cpu]);
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return -1;
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}
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vbprintf("semid[%d]=0x%lx, key[%d]=%lx\n",cpu,(u64)semid[cpu],cpu,
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(u64)key[cpu]);
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/* initialize the semaphore to 1: */
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arg.val = 1;
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if (semctl(semid[cpu], 0, SETVAL, arg) == -1) {
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perror("semctl");
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return -1;
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}
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return 0;
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}
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static int lock(int cpu)
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{
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struct sembuf lock;
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lock.sem_num = cpu;
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lock.sem_op = 1;
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semop(semid[cpu], &lock, 1);
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return 0;
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}
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static int unlock(int cpu)
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{
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struct sembuf unlock;
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unlock.sem_num = cpu;
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unlock.sem_op = -1;
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semop(semid[cpu], &unlock, 1);
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return 0;
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}
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void free_sem(int cpu)
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{
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semctl(semid[cpu], 0, IPC_RMID);
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}
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int wr_multi(char *fn, unsigned long *data, int size)
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{
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int fd;
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char buf[MAX_BUF_SIZE];
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int ret;
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if (size==1)
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sprintf(buf, "%lx", *data);
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else if (size==3)
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sprintf(buf, "%lx,%lx,%lx", data[0], data[1], data[2]);
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else {
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fprintf(stderr,"write to file with wrong size!\n");
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return -1;
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}
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fd=open(fn, O_RDWR);
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if (!fd) {
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perror("Error:");
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return -1;
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}
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ret=write(fd, buf, sizeof(buf));
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close(fd);
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return ret;
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}
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int wr(char *fn, unsigned long data)
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{
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return wr_multi(fn, &data, 1);
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}
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int rd(char *fn, unsigned long *data)
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{
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int fd;
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char buf[MAX_BUF_SIZE];
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fd=open(fn, O_RDONLY);
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if (fd<0) {
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perror("Error:");
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return -1;
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}
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read(fd, buf, MAX_BUF_SIZE);
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*data=strtoul(buf, NULL, 16);
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close(fd);
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return 0;
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}
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int rd_status(char *path, int *status)
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{
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char fn[MAX_FN_SIZE];
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sprintf(fn, "%s/status", path);
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if (rd(fn, (u64*)status)<0) {
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perror("status reading error.\n");
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return -1;
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}
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return 0;
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}
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int rd_capabilities(char *path, u64 *capabilities)
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{
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char fn[MAX_FN_SIZE];
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sprintf(fn, "%s/capabilities", path);
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if (rd(fn, capabilities)<0) {
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perror("capabilities reading error.\n");
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return -1;
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}
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return 0;
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}
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|
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int rd_all(char *path)
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|
{
|
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unsigned long err_type_info, err_struct_info, err_data_buffer;
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int status;
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unsigned long capabilities, resources;
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char fn[MAX_FN_SIZE];
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sprintf(fn, "%s/err_type_info", path);
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if (rd(fn, &err_type_info)<0) {
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perror("err_type_info reading error.\n");
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return -1;
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}
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printf("err_type_info=%lx\n", err_type_info);
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sprintf(fn, "%s/err_struct_info", path);
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if (rd(fn, &err_struct_info)<0) {
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perror("err_struct_info reading error.\n");
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return -1;
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}
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printf("err_struct_info=%lx\n", err_struct_info);
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sprintf(fn, "%s/err_data_buffer", path);
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if (rd(fn, &err_data_buffer)<0) {
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perror("err_data_buffer reading error.\n");
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return -1;
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}
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printf("err_data_buffer=%lx\n", err_data_buffer);
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sprintf(fn, "%s/status", path);
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if (rd("status", (u64*)&status)<0) {
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perror("status reading error.\n");
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return -1;
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}
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printf("status=%d\n", status);
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|
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sprintf(fn, "%s/capabilities", path);
|
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if (rd(fn,&capabilities)<0) {
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perror("capabilities reading error.\n");
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return -1;
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}
|
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printf("capabilities=%lx\n", capabilities);
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|
|
sprintf(fn, "%s/resources", path);
|
|
if (rd(fn, &resources)<0) {
|
|
perror("resources reading error.\n");
|
|
return -1;
|
|
}
|
|
printf("resources=%lx\n", resources);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int query_capabilities(char *path, err_type_info_t err_type_info,
|
|
u64 *capabilities)
|
|
{
|
|
char fn[MAX_FN_SIZE];
|
|
err_struct_info_t err_struct_info;
|
|
err_data_buffer_t err_data_buffer;
|
|
|
|
err_struct_info.err_struct_info=0;
|
|
memset(err_data_buffer.err_data_buffer, -1, ERR_DATA_BUFFER_SIZE*8);
|
|
|
|
sprintf(fn, "%s/err_type_info", path);
|
|
wr(fn, err_type_info.err_type_info);
|
|
sprintf(fn, "%s/err_struct_info", path);
|
|
wr(fn, 0x0);
|
|
sprintf(fn, "%s/err_data_buffer", path);
|
|
wr_multi(fn, err_data_buffer.err_data_buffer, ERR_DATA_BUFFER_SIZE);
|
|
|
|
// Fire pal_mc_error_inject procedure.
|
|
sprintf(fn, "%s/call_start", path);
|
|
wr(fn, mode);
|
|
|
|
if (rd_capabilities(path, capabilities)<0)
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int query_all_capabilities()
|
|
{
|
|
int status;
|
|
err_type_info_t err_type_info;
|
|
int err_sev, err_struct, struct_hier;
|
|
int cap=0;
|
|
u64 capabilities;
|
|
char path[MAX_FN_SIZE];
|
|
|
|
err_type_info.err_type_info=0; // Initial
|
|
err_type_info.err_type_info_u.mode=0; // Query mode;
|
|
err_type_info.err_type_info_u.err_inj=0;
|
|
|
|
printf("All capabilities implemented in pal_mc_error_inject:\n");
|
|
sprintf(path, PATH_FORMAT ,0);
|
|
for (err_sev=0;err_sev<3;err_sev++)
|
|
for (err_struct=0;err_struct<5;err_struct++)
|
|
for (struct_hier=0;struct_hier<5;struct_hier++)
|
|
{
|
|
status=-1;
|
|
capabilities=0;
|
|
err_type_info.err_type_info_u.err_sev=err_sev;
|
|
err_type_info.err_type_info_u.err_struct=err_struct;
|
|
err_type_info.err_type_info_u.struct_hier=struct_hier;
|
|
|
|
if (query_capabilities(path, err_type_info, &capabilities)<0)
|
|
continue;
|
|
|
|
if (rd_status(path, &status)<0)
|
|
continue;
|
|
|
|
if (status==0) {
|
|
cap=1;
|
|
printf("For err_sev=%d, err_struct=%d, struct_hier=%d: ",
|
|
err_sev, err_struct, struct_hier);
|
|
printf("capabilities 0x%lx\n", capabilities);
|
|
}
|
|
}
|
|
if (!cap) {
|
|
printf("No capabilities supported.\n");
|
|
return 0;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int err_inject(int cpu, char *path, err_type_info_t err_type_info,
|
|
err_struct_info_t err_struct_info,
|
|
err_data_buffer_t err_data_buffer)
|
|
{
|
|
int status;
|
|
char fn[MAX_FN_SIZE];
|
|
|
|
log_info(cpu, "err_type_info=%lx, err_struct_info=%lx, ",
|
|
err_type_info.err_type_info,
|
|
err_struct_info.err_struct_info);
|
|
log_info(cpu,"err_data_buffer=[%lx,%lx,%lx]\n",
|
|
err_data_buffer.err_data_buffer[0],
|
|
err_data_buffer.err_data_buffer[1],
|
|
err_data_buffer.err_data_buffer[2]);
|
|
sprintf(fn, "%s/err_type_info", path);
|
|
wr(fn, err_type_info.err_type_info);
|
|
sprintf(fn, "%s/err_struct_info", path);
|
|
wr(fn, err_struct_info.err_struct_info);
|
|
sprintf(fn, "%s/err_data_buffer", path);
|
|
wr_multi(fn, err_data_buffer.err_data_buffer, ERR_DATA_BUFFER_SIZE);
|
|
|
|
// Fire pal_mc_error_inject procedure.
|
|
sprintf(fn, "%s/call_start", path);
|
|
wr(fn,mode);
|
|
|
|
if (rd_status(path, &status)<0) {
|
|
vbprintf("fail: read status\n");
|
|
return -100;
|
|
}
|
|
|
|
if (status!=0) {
|
|
log_info(cpu, "fail: status=%d\n", status);
|
|
return status;
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
static int construct_data_buf(char *path, err_type_info_t err_type_info,
|
|
err_struct_info_t err_struct_info,
|
|
err_data_buffer_t *err_data_buffer,
|
|
void *va1)
|
|
{
|
|
char fn[MAX_FN_SIZE];
|
|
u64 virt_addr=0, phys_addr=0;
|
|
|
|
vbprintf("va1=%lx\n", (u64)va1);
|
|
memset(&err_data_buffer->err_data_buffer_cache, 0, ERR_DATA_BUFFER_SIZE*8);
|
|
|
|
switch (err_type_info.err_type_info_u.err_struct) {
|
|
case 1: // Cache
|
|
switch (err_struct_info.err_struct_info_cache.cl_id) {
|
|
case 1: //Virtual addr
|
|
err_data_buffer->err_data_buffer_cache.inj_addr=(u64)va1;
|
|
break;
|
|
case 2: //Phys addr
|
|
sprintf(fn, "%s/virtual_to_phys", path);
|
|
virt_addr=(u64)va1;
|
|
if (wr(fn,virt_addr)<0)
|
|
return -1;
|
|
rd(fn, &phys_addr);
|
|
err_data_buffer->err_data_buffer_cache.inj_addr=phys_addr;
|
|
break;
|
|
default:
|
|
printf("Not supported cl_id\n");
|
|
break;
|
|
}
|
|
break;
|
|
case 2: // TLB
|
|
break;
|
|
case 3: // Register file
|
|
break;
|
|
case 4: // Bus/system interconnect
|
|
default:
|
|
printf("Not supported err_struct\n");
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
typedef struct {
|
|
u64 cpu;
|
|
u64 loop;
|
|
u64 interval;
|
|
u64 err_type_info;
|
|
u64 err_struct_info;
|
|
u64 err_data_buffer[ERR_DATA_BUFFER_SIZE];
|
|
} parameters_t;
|
|
|
|
parameters_t line_para;
|
|
int para;
|
|
|
|
static int empty_data_buffer(u64 *err_data_buffer)
|
|
{
|
|
int empty=1;
|
|
int i;
|
|
|
|
for (i=0;i<ERR_DATA_BUFFER_SIZE; i++)
|
|
if (err_data_buffer[i]!=-1)
|
|
empty=0;
|
|
|
|
return empty;
|
|
}
|
|
|
|
int err_inj()
|
|
{
|
|
err_type_info_t err_type_info;
|
|
err_struct_info_t err_struct_info;
|
|
err_data_buffer_t err_data_buffer;
|
|
int count;
|
|
FILE *fp;
|
|
unsigned long cpu, loop, interval, err_type_info_conf, err_struct_info_conf;
|
|
u64 err_data_buffer_conf[ERR_DATA_BUFFER_SIZE];
|
|
int num;
|
|
int i;
|
|
char path[MAX_FN_SIZE];
|
|
parameters_t parameters[MAX_TASK_NUM]={};
|
|
pid_t child_pid[MAX_TASK_NUM];
|
|
time_t current_time;
|
|
int status;
|
|
|
|
if (!para) {
|
|
fp=fopen("err.conf", "r");
|
|
if (fp==NULL) {
|
|
perror("Error open err.conf");
|
|
return -1;
|
|
}
|
|
|
|
num=0;
|
|
while (!feof(fp)) {
|
|
char buf[256];
|
|
memset(buf,0,256);
|
|
fgets(buf, 256, fp);
|
|
count=sscanf(buf, "%lx, %lx, %lx, %lx, %lx, %lx, %lx, %lx\n",
|
|
&cpu, &loop, &interval,&err_type_info_conf,
|
|
&err_struct_info_conf,
|
|
&err_data_buffer_conf[0],
|
|
&err_data_buffer_conf[1],
|
|
&err_data_buffer_conf[2]);
|
|
if (count!=PARA_FIELD_NUM+3) {
|
|
err_data_buffer_conf[0]=-1;
|
|
err_data_buffer_conf[1]=-1;
|
|
err_data_buffer_conf[2]=-1;
|
|
count=sscanf(buf, "%lx, %lx, %lx, %lx, %lx\n",
|
|
&cpu, &loop, &interval,&err_type_info_conf,
|
|
&err_struct_info_conf);
|
|
if (count!=PARA_FIELD_NUM)
|
|
continue;
|
|
}
|
|
|
|
parameters[num].cpu=cpu;
|
|
parameters[num].loop=loop;
|
|
parameters[num].interval= interval>MIN_INTERVAL
|
|
?interval:MIN_INTERVAL;
|
|
parameters[num].err_type_info=err_type_info_conf;
|
|
parameters[num].err_struct_info=err_struct_info_conf;
|
|
memcpy(parameters[num++].err_data_buffer,
|
|
err_data_buffer_conf,ERR_DATA_BUFFER_SIZE*8) ;
|
|
|
|
if (num>=MAX_TASK_NUM)
|
|
break;
|
|
}
|
|
}
|
|
else {
|
|
parameters[0].cpu=line_para.cpu;
|
|
parameters[0].loop=line_para.loop;
|
|
parameters[0].interval= line_para.interval>MIN_INTERVAL
|
|
?line_para.interval:MIN_INTERVAL;
|
|
parameters[0].err_type_info=line_para.err_type_info;
|
|
parameters[0].err_struct_info=line_para.err_struct_info;
|
|
memcpy(parameters[0].err_data_buffer,
|
|
line_para.err_data_buffer,ERR_DATA_BUFFER_SIZE*8) ;
|
|
|
|
num=1;
|
|
}
|
|
|
|
/* Create semaphore: If one_lock, one semaphore for all processors.
|
|
Otherwise, one semaphore for each processor. */
|
|
if (one_lock) {
|
|
if (create_sem(0)) {
|
|
printf("Can not create semaphore...exit\n");
|
|
free_sem(0);
|
|
return -1;
|
|
}
|
|
}
|
|
else {
|
|
for (i=0;i<num;i++) {
|
|
if (create_sem(parameters[i].cpu)) {
|
|
printf("Can not create semaphore for cpu%d...exit\n",i);
|
|
free_sem(parameters[num].cpu);
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Create a shm segment which will be used to inject/consume errors on.*/
|
|
if (create_shm()==-1) {
|
|
printf("Error to create shm...exit\n");
|
|
return -1;
|
|
}
|
|
|
|
for (i=0;i<num;i++) {
|
|
pid_t pid;
|
|
|
|
current_time=time(NULL);
|
|
log_info(parameters[i].cpu, "\nBegine at %s", ctime(¤t_time));
|
|
log_info(parameters[i].cpu, "Configurations:\n");
|
|
log_info(parameters[i].cpu,"On cpu%ld: loop=%lx, interval=%lx(s)",
|
|
parameters[i].cpu,
|
|
parameters[i].loop,
|
|
parameters[i].interval);
|
|
log_info(parameters[i].cpu," err_type_info=%lx,err_struct_info=%lx\n",
|
|
parameters[i].err_type_info,
|
|
parameters[i].err_struct_info);
|
|
|
|
sprintf(path, PATH_FORMAT, (int)parameters[i].cpu);
|
|
err_type_info.err_type_info=parameters[i].err_type_info;
|
|
err_struct_info.err_struct_info=parameters[i].err_struct_info;
|
|
memcpy(err_data_buffer.err_data_buffer,
|
|
parameters[i].err_data_buffer,
|
|
ERR_DATA_BUFFER_SIZE*8);
|
|
|
|
pid=fork();
|
|
if (pid==0) {
|
|
unsigned long mask[MASK_SIZE];
|
|
int j, k;
|
|
|
|
void *va1, *va2;
|
|
|
|
/* Allocate two memory areas va1 and va2 in shm */
|
|
va1=shmaddr+parameters[i].cpu*PAGE_SIZE;
|
|
va2=shmaddr+parameters[i].cpu*PAGE_SIZE+PAGE_SIZE;
|
|
|
|
vbprintf("va1=%lx, va2=%lx\n", (u64)va1, (u64)va2);
|
|
memset(va1, 0x1, PAGE_SIZE);
|
|
memset(va2, 0x2, PAGE_SIZE);
|
|
|
|
if (empty_data_buffer(err_data_buffer.err_data_buffer))
|
|
/* If not specified yet, construct data buffer
|
|
* with va1
|
|
*/
|
|
construct_data_buf(path, err_type_info,
|
|
err_struct_info, &err_data_buffer,va1);
|
|
|
|
for (j=0;j<MASK_SIZE;j++)
|
|
mask[j]=0;
|
|
|
|
cpu=parameters[i].cpu;
|
|
k = cpu%64;
|
|
j = cpu/64;
|
|
mask[j] = 1UL << k;
|
|
|
|
if (sched_setaffinity(0, MASK_SIZE*8, mask)==-1) {
|
|
perror("Error sched_setaffinity:");
|
|
return -1;
|
|
}
|
|
|
|
for (j=0; j<parameters[i].loop; j++) {
|
|
log_info(parameters[i].cpu,"Injection ");
|
|
log_info(parameters[i].cpu,"on cpu%ld: #%d/%ld ",
|
|
|
|
parameters[i].cpu,j+1, parameters[i].loop);
|
|
|
|
/* Hold the lock */
|
|
if (one_lock)
|
|
lock(0);
|
|
else
|
|
/* Hold lock on this cpu */
|
|
lock(parameters[i].cpu);
|
|
|
|
if ((status=err_inject(parameters[i].cpu,
|
|
path, err_type_info,
|
|
err_struct_info, err_data_buffer))
|
|
==0) {
|
|
/* consume the error for "inject only"*/
|
|
memcpy(va2, va1, PAGE_SIZE);
|
|
memcpy(va1, va2, PAGE_SIZE);
|
|
log_info(parameters[i].cpu,
|
|
"successful\n");
|
|
}
|
|
else {
|
|
log_info(parameters[i].cpu,"fail:");
|
|
log_info(parameters[i].cpu,
|
|
"status=%d\n", status);
|
|
unlock(parameters[i].cpu);
|
|
break;
|
|
}
|
|
if (one_lock)
|
|
/* Release the lock */
|
|
unlock(0);
|
|
/* Release lock on this cpu */
|
|
else
|
|
unlock(parameters[i].cpu);
|
|
|
|
if (j < parameters[i].loop-1)
|
|
sleep(parameters[i].interval);
|
|
}
|
|
current_time=time(NULL);
|
|
log_info(parameters[i].cpu, "Done at %s", ctime(¤t_time));
|
|
return 0;
|
|
}
|
|
else if (pid<0) {
|
|
perror("Error fork:");
|
|
continue;
|
|
}
|
|
child_pid[i]=pid;
|
|
}
|
|
for (i=0;i<num;i++)
|
|
waitpid(child_pid[i], NULL, 0);
|
|
|
|
if (one_lock)
|
|
free_sem(0);
|
|
else
|
|
for (i=0;i<num;i++)
|
|
free_sem(parameters[i].cpu);
|
|
|
|
printf("All done.\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
void help()
|
|
{
|
|
printf("err_inject_tool:\n");
|
|
printf("\t-q: query all capabilities. default: off\n");
|
|
printf("\t-m: procedure mode. 1: physical 2: virtual. default: 1\n");
|
|
printf("\t-i: inject errors. default: off\n");
|
|
printf("\t-l: one lock per cpu. default: one lock for all\n");
|
|
printf("\t-e: error parameters:\n");
|
|
printf("\t\tcpu,loop,interval,err_type_info,err_struct_info[,err_data_buffer[0],err_data_buffer[1],err_data_buffer[2]]\n");
|
|
printf("\t\t cpu: logical cpu number the error will be inject in.\n");
|
|
printf("\t\t loop: times the error will be injected.\n");
|
|
printf("\t\t interval: In second. every so often one error is injected.\n");
|
|
printf("\t\t err_type_info, err_struct_info: PAL parameters.\n");
|
|
printf("\t\t err_data_buffer: PAL parameter. Optional. If not present,\n");
|
|
printf("\t\t it's constructed by tool automatically. Be\n");
|
|
printf("\t\t careful to provide err_data_buffer and make\n");
|
|
printf("\t\t sure it's working with the environment.\n");
|
|
printf("\t Note:no space between error parameters.\n");
|
|
printf("\t default: Take error parameters from err.conf instead of command line.\n");
|
|
printf("\t-v: verbose. default: off\n");
|
|
printf("\t-h: help\n\n");
|
|
printf("The tool will take err.conf file as ");
|
|
printf("input to inject single or multiple errors ");
|
|
printf("on one or multiple cpus in parallel.\n");
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
char c;
|
|
int do_err_inj=0;
|
|
int do_query_all=0;
|
|
int count;
|
|
u32 m;
|
|
|
|
/* Default one lock for all cpu's */
|
|
one_lock=1;
|
|
while ((c = getopt(argc, argv, "m:iqvhle:")) != EOF)
|
|
switch (c) {
|
|
case 'm': /* Procedure mode. 1: phys 2: virt */
|
|
count=sscanf(optarg, "%x", &m);
|
|
if (count!=1 || (m!=1 && m!=2)) {
|
|
printf("Wrong mode number.\n");
|
|
help();
|
|
return -1;
|
|
}
|
|
mode=m;
|
|
break;
|
|
case 'i': /* Inject errors */
|
|
do_err_inj=1;
|
|
break;
|
|
case 'q': /* Query */
|
|
do_query_all=1;
|
|
break;
|
|
case 'v': /* Verbose */
|
|
verbose=1;
|
|
break;
|
|
case 'l': /* One lock per cpu */
|
|
one_lock=0;
|
|
break;
|
|
case 'e': /* error arguments */
|
|
/* Take parameters:
|
|
* #cpu, loop, interval, err_type_info, err_struct_info[, err_data_buffer]
|
|
* err_data_buffer is optional. Recommend not to specify
|
|
* err_data_buffer. Better to use tool to generate it.
|
|
*/
|
|
count=sscanf(optarg,
|
|
"%lx, %lx, %lx, %lx, %lx, %lx, %lx, %lx\n",
|
|
&line_para.cpu,
|
|
&line_para.loop,
|
|
&line_para.interval,
|
|
&line_para.err_type_info,
|
|
&line_para.err_struct_info,
|
|
&line_para.err_data_buffer[0],
|
|
&line_para.err_data_buffer[1],
|
|
&line_para.err_data_buffer[2]);
|
|
if (count!=PARA_FIELD_NUM+3) {
|
|
line_para.err_data_buffer[0]=-1,
|
|
line_para.err_data_buffer[1]=-1,
|
|
line_para.err_data_buffer[2]=-1;
|
|
count=sscanf(optarg, "%lx, %lx, %lx, %lx, %lx\n",
|
|
&line_para.cpu,
|
|
&line_para.loop,
|
|
&line_para.interval,
|
|
&line_para.err_type_info,
|
|
&line_para.err_struct_info);
|
|
if (count!=PARA_FIELD_NUM) {
|
|
printf("Wrong error arguments.\n");
|
|
help();
|
|
return -1;
|
|
}
|
|
}
|
|
para=1;
|
|
break;
|
|
continue;
|
|
break;
|
|
case 'h':
|
|
help();
|
|
return 0;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (do_query_all)
|
|
query_all_capabilities();
|
|
if (do_err_inj)
|
|
err_inj();
|
|
|
|
if (!do_query_all && !do_err_inj)
|
|
help();
|
|
|
|
return 0;
|
|
}
|