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-
-IPF Machine Check (MC) error inject tool
-========================================
-
-IPF Machine Check (MC) error inject tool is used to inject MC
-errors from Linux. The tool is a test bed for IPF MC work flow including
-hardware correctable error handling, OS recoverable error handling, MC
-event logging, etc.
-
-The tool includes two parts: a kernel driver and a user application
-sample. The driver provides interface to PAL to inject error
-and query error injection capabilities. The driver code is in
-arch/ia64/kernel/err_inject.c. The application sample (shown below)
-provides a combination of various errors and calls the driver's interface
-(sysfs interface) to inject errors or query error injection capabilities.
-
-The tool can be used to test Intel IPF machine MC handling capabilities.
-It's especially useful for people who can not access hardware MC injection
-tool to inject error. It's also very useful to integrate with other
-software test suits to do stressful testing on IPF.
-
-Below is a sample application as part of the whole tool. The sample
-can be used as a working test tool. Or it can be expanded to include
-more features. It also can be a integrated into a library or other user
-application to have more thorough test.
-
-The sample application takes err.conf as error configuration input. GCC
-compiles the code. After you install err_inject driver, you can run
-this sample application to inject errors.
-
-Errata: Itanium 2 Processors Specification Update lists some errata against
-the pal_mc_error_inject PAL procedure. The following err.conf has been tested
-on latest Montecito PAL.
-
-err.conf:
-
-#This is configuration file for err_inject_tool.
-#The format of the each line is:
-#cpu, loop, interval, err_type_info, err_struct_info, err_data_buffer
-#where
-# cpu: logical cpu number the error will be inject in.
-# loop: times the error will be injected.
-# interval: In second. every so often one error is injected.
-# err_type_info, err_struct_info: PAL parameters.
-#
-#Note: All values are hex w/o or w/ 0x prefix.
-
-
-#On cpu2, inject only total 0x10 errors, interval 5 seconds
-#corrected, data cache, hier-2, physical addr(assigned by tool code).
-#working on Montecito latest PAL.
-2, 10, 5, 4101, 95
-
-#On cpu4, inject and consume total 0x10 errors, interval 5 seconds
-#corrected, data cache, hier-2, physical addr(assigned by tool code).
-#working on Montecito latest PAL.
-4, 10, 5, 4109, 95
-
-#On cpu15, inject and consume total 0x10 errors, interval 5 seconds
-#recoverable, DTR0, hier-2.
-#working on Montecito latest PAL.
-0xf, 0x10, 5, 4249, 15
-
-The sample application source code:
-
-err_injection_tool.c:
-
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for more
- * details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Copyright (C) 2006 Intel Co
- * Fenghua Yu <fenghua.yu@intel.com>
- *
- */
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <sched.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <stdarg.h>
-#include <string.h>
-#include <errno.h>
-#include <time.h>
-#include <sys/ipc.h>
-#include <sys/sem.h>
-#include <sys/wait.h>
-#include <sys/mman.h>
-#include <sys/shm.h>
-
-#define MAX_FN_SIZE 256
-#define MAX_BUF_SIZE 256
-#define DATA_BUF_SIZE 256
-#define NR_CPUS 512
-#define MAX_TASK_NUM 2048
-#define MIN_INTERVAL 5 // seconds
-#define ERR_DATA_BUFFER_SIZE 3 // Three 8-byte.
-#define PARA_FIELD_NUM 5
-#define MASK_SIZE (NR_CPUS/64)
-#define PATH_FORMAT "/sys/devices/system/cpu/cpu%d/err_inject/"
-
-int sched_setaffinity(pid_t pid, unsigned int len, unsigned long *mask);
-
-int verbose;
-#define vbprintf if (verbose) printf
-
-int log_info(int cpu, const char *fmt, ...)
-{
- FILE *log;
- char fn[MAX_FN_SIZE];
- char buf[MAX_BUF_SIZE];
- va_list args;
-
- sprintf(fn, "%d.log", cpu);
- log=fopen(fn, "a+");
- if (log==NULL) {
- perror("Error open:");
- return -1;
- }
-
- va_start(args, fmt);
- vprintf(fmt, args);
- memset(buf, 0, MAX_BUF_SIZE);
- vsprintf(buf, fmt, args);
- va_end(args);
-
- fwrite(buf, sizeof(buf), 1, log);
- fclose(log);
-
- return 0;
-}
-
-typedef unsigned long u64;
-typedef unsigned int u32;
-
-typedef union err_type_info_u {
- struct {
- u64 mode : 3, /* 0-2 */
- err_inj : 3, /* 3-5 */
- err_sev : 2, /* 6-7 */
- err_struct : 5, /* 8-12 */
- struct_hier : 3, /* 13-15 */
- reserved : 48; /* 16-63 */
- } err_type_info_u;
- u64 err_type_info;
-} err_type_info_t;
-
-typedef union err_struct_info_u {
- struct {
- u64 siv : 1, /* 0 */
- c_t : 2, /* 1-2 */
- cl_p : 3, /* 3-5 */
- cl_id : 3, /* 6-8 */
- cl_dp : 1, /* 9 */
- reserved1 : 22, /* 10-31 */
- tiv : 1, /* 32 */
- trigger : 4, /* 33-36 */
- trigger_pl : 3, /* 37-39 */
- reserved2 : 24; /* 40-63 */
- } err_struct_info_cache;
- struct {
- u64 siv : 1, /* 0 */
- tt : 2, /* 1-2 */
- tc_tr : 2, /* 3-4 */
- tr_slot : 8, /* 5-12 */
- reserved1 : 19, /* 13-31 */
- tiv : 1, /* 32 */
- trigger : 4, /* 33-36 */
- trigger_pl : 3, /* 37-39 */
- reserved2 : 24; /* 40-63 */
- } err_struct_info_tlb;
- struct {
- u64 siv : 1, /* 0 */
- regfile_id : 4, /* 1-4 */
- reg_num : 7, /* 5-11 */
- reserved1 : 20, /* 12-31 */
- tiv : 1, /* 32 */
- trigger : 4, /* 33-36 */
- trigger_pl : 3, /* 37-39 */
- reserved2 : 24; /* 40-63 */
- } err_struct_info_register;
- struct {
- u64 reserved;
- } err_struct_info_bus_processor_interconnect;
- u64 err_struct_info;
-} err_struct_info_t;
-
-typedef union err_data_buffer_u {
- struct {
- u64 trigger_addr; /* 0-63 */
- u64 inj_addr; /* 64-127 */
- u64 way : 5, /* 128-132 */
- index : 20, /* 133-152 */
- : 39; /* 153-191 */
- } err_data_buffer_cache;
- struct {
- u64 trigger_addr; /* 0-63 */
- u64 inj_addr; /* 64-127 */
- u64 way : 5, /* 128-132 */
- index : 20, /* 133-152 */
- reserved : 39; /* 153-191 */
- } err_data_buffer_tlb;
- struct {
- u64 trigger_addr; /* 0-63 */
- } err_data_buffer_register;
- struct {
- u64 reserved; /* 0-63 */
- } err_data_buffer_bus_processor_interconnect;
- u64 err_data_buffer[ERR_DATA_BUFFER_SIZE];
-} err_data_buffer_t;
-
-typedef union capabilities_u {
- struct {
- u64 i : 1,
- d : 1,
- rv : 1,
- tag : 1,
- data : 1,
- mesi : 1,
- dp : 1,
- reserved1 : 3,
- pa : 1,
- va : 1,
- wi : 1,
- reserved2 : 20,
- trigger : 1,
- trigger_pl : 1,
- reserved3 : 30;
- } capabilities_cache;
- struct {
- u64 d : 1,
- i : 1,
- rv : 1,
- tc : 1,
- tr : 1,
- reserved1 : 27,
- trigger : 1,
- trigger_pl : 1,
- reserved2 : 30;
- } capabilities_tlb;
- struct {
- u64 gr_b0 : 1,
- gr_b1 : 1,
- fr : 1,
- br : 1,
- pr : 1,
- ar : 1,
- cr : 1,
- rr : 1,
- pkr : 1,
- dbr : 1,
- ibr : 1,
- pmc : 1,
- pmd : 1,
- reserved1 : 3,
- regnum : 1,
- reserved2 : 15,
- trigger : 1,
- trigger_pl : 1,
- reserved3 : 30;
- } capabilities_register;
- struct {
- u64 reserved;
- } capabilities_bus_processor_interconnect;
-} capabilities_t;
-
-typedef struct resources_s {
- u64 ibr0 : 1,
- ibr2 : 1,
- ibr4 : 1,
- ibr6 : 1,
- dbr0 : 1,
- dbr2 : 1,
- dbr4 : 1,
- dbr6 : 1,
- reserved : 48;
-} resources_t;
-
-
-long get_page_size(void)
-{
- long page_size=sysconf(_SC_PAGESIZE);
- return page_size;
-}
-
-#define PAGE_SIZE (get_page_size()==-1?0x4000:get_page_size())
-#define SHM_SIZE (2*PAGE_SIZE*NR_CPUS)
-#define SHM_VA 0x2000000100000000
-
-int shmid;
-void *shmaddr;
-
-int create_shm(void)
-{
- key_t key;
- char fn[MAX_FN_SIZE];
-
- /* cpu0 is always existing */
- sprintf(fn, PATH_FORMAT, 0);
- if ((key = ftok(fn, 's')) == -1) {
- perror("ftok");
- return -1;
- }
-
- shmid = shmget(key, SHM_SIZE, 0644 | IPC_CREAT);
- if (shmid == -1) {
- if (errno==EEXIST) {
- shmid = shmget(key, SHM_SIZE, 0);
- if (shmid == -1) {
- perror("shmget");
- return -1;
- }
- }
- else {
- perror("shmget");
- return -1;
- }
- }
- vbprintf("shmid=%d", shmid);
-
- /* connect to the segment: */
- shmaddr = shmat(shmid, (void *)SHM_VA, 0);
- if (shmaddr == (void*)-1) {
- perror("shmat");
- return -1;
- }
-
- memset(shmaddr, 0, SHM_SIZE);
- mlock(shmaddr, SHM_SIZE);
-
- return 0;
-}
-
-int free_shm()
-{
- munlock(shmaddr, SHM_SIZE);
- shmdt(shmaddr);
- semctl(shmid, 0, IPC_RMID);
-
- return 0;
-}
-
-#ifdef _SEM_SEMUN_UNDEFINED
-union semun
-{
- int val;
- struct semid_ds *buf;
- unsigned short int *array;
- struct seminfo *__buf;
-};
-#endif
-
-u32 mode=1; /* 1: physical mode; 2: virtual mode. */
-int one_lock=1;
-key_t key[NR_CPUS];
-int semid[NR_CPUS];
-
-int create_sem(int cpu)
-{
- union semun arg;
- char fn[MAX_FN_SIZE];
- int sid;
-
- sprintf(fn, PATH_FORMAT, cpu);
- sprintf(fn, "%s/%s", fn, "err_type_info");
- if ((key[cpu] = ftok(fn, 'e')) == -1) {
- perror("ftok");
- return -1;
- }
-
- if (semid[cpu]!=0)
- return 0;
-
- /* clear old semaphore */
- if ((sid = semget(key[cpu], 1, 0)) != -1)
- semctl(sid, 0, IPC_RMID);
-
- /* get one semaphore */
- if ((semid[cpu] = semget(key[cpu], 1, IPC_CREAT | IPC_EXCL)) == -1) {
- perror("semget");
- printf("Please remove semaphore with key=0x%lx, then run the tool.\n",
- (u64)key[cpu]);
- return -1;
- }
-
- vbprintf("semid[%d]=0x%lx, key[%d]=%lx\n",cpu,(u64)semid[cpu],cpu,
- (u64)key[cpu]);
- /* initialize the semaphore to 1: */
- arg.val = 1;
- if (semctl(semid[cpu], 0, SETVAL, arg) == -1) {
- perror("semctl");
- return -1;
- }
-
- return 0;
-}
-
-static int lock(int cpu)
-{
- struct sembuf lock;
-
- lock.sem_num = cpu;
- lock.sem_op = 1;
- semop(semid[cpu], &lock, 1);
-
- return 0;
-}
-
-static int unlock(int cpu)
-{
- struct sembuf unlock;
-
- unlock.sem_num = cpu;
- unlock.sem_op = -1;
- semop(semid[cpu], &unlock, 1);
-
- return 0;
-}
-
-void free_sem(int cpu)
-{
- semctl(semid[cpu], 0, IPC_RMID);
-}
-
-int wr_multi(char *fn, unsigned long *data, int size)
-{
- int fd;
- char buf[MAX_BUF_SIZE];
- int ret;
-
- if (size==1)
- sprintf(buf, "%lx", *data);
- else if (size==3)
- sprintf(buf, "%lx,%lx,%lx", data[0], data[1], data[2]);
- else {
- fprintf(stderr,"write to file with wrong size!\n");
- return -1;
- }
-
- fd=open(fn, O_RDWR);
- if (!fd) {
- perror("Error:");
- return -1;
- }
- ret=write(fd, buf, sizeof(buf));
- close(fd);
- return ret;
-}
-
-int wr(char *fn, unsigned long data)
-{
- return wr_multi(fn, &data, 1);
-}
-
-int rd(char *fn, unsigned long *data)
-{
- int fd;
- char buf[MAX_BUF_SIZE];
-
- fd=open(fn, O_RDONLY);
- if (fd<0) {
- perror("Error:");
- return -1;
- }
- read(fd, buf, MAX_BUF_SIZE);
- *data=strtoul(buf, NULL, 16);
- close(fd);
- return 0;
-}
-
-int rd_status(char *path, int *status)
-{
- char fn[MAX_FN_SIZE];
- sprintf(fn, "%s/status", path);
- if (rd(fn, (u64*)status)<0) {
- perror("status reading error.\n");
- return -1;
- }
-
- return 0;
-}
-
-int rd_capabilities(char *path, u64 *capabilities)
-{
- char fn[MAX_FN_SIZE];
- sprintf(fn, "%s/capabilities", path);
- if (rd(fn, capabilities)<0) {
- perror("capabilities reading error.\n");
- return -1;
- }
-
- return 0;
-}
-
-int rd_all(char *path)
-{
- unsigned long err_type_info, err_struct_info, err_data_buffer;
- int status;
- unsigned long capabilities, resources;
- char fn[MAX_FN_SIZE];
-
- sprintf(fn, "%s/err_type_info", path);
- if (rd(fn, &err_type_info)<0) {
- perror("err_type_info reading error.\n");
- return -1;
- }
- printf("err_type_info=%lx\n", err_type_info);
-
- sprintf(fn, "%s/err_struct_info", path);
- if (rd(fn, &err_struct_info)<0) {
- perror("err_struct_info reading error.\n");
- return -1;
- }
- printf("err_struct_info=%lx\n", err_struct_info);
-
- sprintf(fn, "%s/err_data_buffer", path);
- if (rd(fn, &err_data_buffer)<0) {
- perror("err_data_buffer reading error.\n");
- return -1;
- }
- printf("err_data_buffer=%lx\n", err_data_buffer);
-
- sprintf(fn, "%s/status", path);
- if (rd("status", (u64*)&status)<0) {
- perror("status reading error.\n");
- return -1;
- }
- printf("status=%d\n", status);
-
- sprintf(fn, "%s/capabilities", path);
- if (rd(fn,&capabilities)<0) {
- perror("capabilities reading error.\n");
- return -1;
- }
- printf("capabilities=%lx\n", capabilities);
-
- 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(&current_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]=1<<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(&current_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;
-}
-