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openSUSE:Evergreen:11.4
sgpio
sgpio_0.10.patch
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File sgpio_0.10.patch of Package sgpio
diff -urN sgpio_rh_snap4/sgpio.c sgpio_new/sgpio.c --- sgpio_rh_snap4/sgpio.c 2008-07-14 16:01:37.000000000 +0200 +++ sgpio_new/sgpio.c 2008-11-27 15:03:45.000000000 +0100 @@ -8,7 +8,7 @@ * * 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. See the GNU General Public License + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * for more details. * * You should have received a copy of the GNU General Public License along @@ -19,15 +19,16 @@ /* * Intel SGPIO enclosure management utility - * Author: Eric R Hall <Eric.R.Hall@intel.com> - * + * Author: Eric R Hall <Eric.R.Hall@intel.com> + * Rework: Krzysztof Wojcik <krzysztof.wojcik@intel.com> + * */ #include <stdio.h> /* used by printf */ #include <unistd.h> /* used by chdir and write */ #include <stdlib.h> /* used by exit */ -#include <math.h> /* used by math functions */ -#include <getopt.h> /* used by command.c to parse the command line */ +#include <math.h> /* used by math functions */ +#include <getopt.h> /* used by command.c to parse the command line */ #include <string.h> /* used to manipulate strings */ #include <fcntl.h> /* used for O_WRONLY definition in 'open()' */ #include <time.h> /* used by usleep because SGPIO driver is slow */ @@ -35,6 +36,7 @@ #include <signal.h> /* needed by signals */ #include <syslog.h> /* used for message log */ #include <sys/types.h> /* used by read() */ +#include <dirent.h> /***************** 80 chars ***************************************************/ @@ -48,23 +50,23 @@ #include "version.h" /* this programs available commands */ -#include "commands.h" +#include "commands.h" /* define the directory paths to the LED "files" */ -#define SUPPORTED_DISKS 5 // 0-5=6 +#define MAX_DISK_IDX 5 #define SYSFS_BASE "/sys/class" -#define PORT_NAME "/scsi_host/host" /* host0 = port0 ~ sda */ -#define SW_CONTROL "/scsi_device" -#define EM_MESSAGE "/em_message" +#define PORT_NAME "/scsi_host/host" /* host0 = port0 ~ sda */ +#define SW_CONTROL "/scsi_device" +#define EM_MESSAGE "/em_message" #define EM_MESSAGE_TYPE "/em_message_type" #define EM_MESSAGE_DFLT "0" /* per section 12.2.1 in the ACHI 1.2 spec */ -#define LOCATE_LED 524288 /* or bitmask 2^19 */ -#define FAULT_LED 4194304 /* or bitmask 2^22 */ -#define REBUILD_LED 4718592 /* 2^19 + 2^22 */ -#define ACTIV_LED 65536 /* 2^16 */ -#define OFF_LED 0 /* nothing! */ +#define LOCATE_LED 524288 /* or bitmask 2^19 */ +#define FAULT_LED 4194304 /* or bitmask 2^22 */ +#define REBUILD_LED 4718592 /* 2^19 + 2^22 */ +#define ACTIV_LED 65536 /* 2^16 */ +#define OFF_LED 0 /* nothing! */ /* LEDs in the backplane per disk and the order of the leds * Although there are only physically two LEDs on an Intel Intelliegent @@ -73,62 +75,85 @@ * and off. */ #define LEDS_PER_DISK 5 /* locate, fault, rebuild, activity, and off */ /* time to wait in uSec before sending next command to the SGPIO bus */ -#define SGPIO_wait 1000 +#define SGPIO_WAIT 1500 -/* set the buf size for led_write, which should also be - * the return from the write() */ +/* set the buf size for led_write */ #define WRITE_BUF 20 +/* some number that's unlikely to be random */ +#define INITIATED 1009 + +/* /sys/class/scsi_device/0:0:0:0/device/block:sda +* the path in the fs is 47 char */ +#define FS_PATH_LEN 47 + +/* message lenth */ +#define MESSAGE_LEN 50 + +/*index of port number in fs path*/ +#define PORT_NUM_LOC 21 + +/*denotes free record in the disk structure*/ +#define PORT_FREE -1 + +#define NONE -1 + +static const char *sys_scsi_path = "/sys/class/scsi_disk/"; +static const char *sys_scsi_dev_blk_sles = "/device/block/"; +static const char *sys_scsi_dev_blk_rh = "/device/block:"; + /* define global variables */ /* the led list is used to dynamically set the 'LEDs' for each disk */ -int _led_list[] = { LOCATE_LED, FAULT_LED, REBUILD_LED, ACTIV_LED, OFF_LED }; -/* blink rates in Hz for locate, fault, rebuild, activity */ +int _led_list[] = {LOCATE_LED, FAULT_LED, REBUILD_LED, ACTIV_LED, OFF_LED}; +/* blink rates in Hz for locate, fault, rebuild, activity */ int _led_rate = 0; +/* SIGALRM flag*/ +volatile sig_atomic_t sigal_flag = 0; /* done defining global variables */ /* led structure; path to control, init'd status, states, and file handler */ -struct led_context { - char path[256]; - int init; - int current_state; - int next_state; - int fd; +struct led_context{ + char path[256]; + int init; + int current_state; + int next_state; + int fd; }; /* uses the led_context to associate disks to leds */ -struct disk { - struct led_context data[LEDS_PER_DISK]; - int id; - int port; - int init; - char name[7]; +struct disk{ + struct led_context data[LEDS_PER_DISK]; + int id; + int host_port; + int init; + char name[7]; }; /* structure for the disks associated with the led structure */ -struct disk disks[(SUPPORTED_DISKS+1)]; +struct disk disks[(MAX_DISK_IDX+1)]; /* define the version to return. Uses version.h */ -static int version() { - printf("Utility Version %i.%i\n", UTIL_VERSION_MAJOR, \ - UTIL_VERSION_MINOR); - printf("SGPIO Specification Version %i.%i\n", SGPIO_VERSION_MAJOR, \ - SGPIO_VERSION_MINOR); - return 0; +static int version(){ + printf("Utility Version %i.%i\n", UTIL_VERSION_MAJOR, \ + UTIL_VERSION_MINOR); + printf("SGPIO Specification Version %i.%i\n", SGPIO_VERSION_MAJOR, \ + SGPIO_VERSION_MINOR); + return 0; } /* display help information */ -static int help(char *argv) { - printf("SGPIO tool for intelligent hard disk drive backplanes\nUsage:\n" \ - "%s [[-d|--disk] <sda,sdb,sdc,etc...> | [-p|--port] <0,1,2,etc...>]\n" \ - "[-s|--status] <fault|locate|rebuild|off> [-f|--freq] <1,2,3,etc...>\n", - argv); - return 0; +static int help(char *argv){ + printf("SGPIO tool for intelligent hard disk drive backplanes\nUsage:\n" \ + "%s [[-d|--disk] <sda,sdb,sdc,etc...> | [-p|--port] <0,1,2,etc...>]\n" \ + "[-s|--status] <fault|locate|rebuild|off> [-f|--freq] <1,2,3,etc...>\n", + argv); + return 0; } /* define the led states */ -static void init_led(struct led_context *led) { - led->current_state = 0; - led->next_state = 0; +static void init_led(struct led_context *led){ + led->current_state = 0; + led->next_state = 0; } /* declare the whatportis [sdX] prototype */ @@ -142,6 +167,12 @@ int led_set(int port_num); +/* declare the led_change_state function prototype */ +int led_change_state(void); + +void led_init(void); + +int led_execute(int next_state, char *message); /* declare the timer event function prototype */ void alarm_handler(int signo); @@ -149,505 +180,504 @@ /* declare the timer function that runs every x sec or usec prototype */ int led_timer(); +int find_port_number(char *location); + /* the main */ -int main (int argc, char **argv) { - char delims[] = ","; /* used to split --disk argument sda,sdb,sdc */ - char* result; /* the result of the 'split' disks used in the -d argument */ - int c; /* used as the command argument case selector */ - int ii = 0; /* used in the jj for loop */ - int leds = 0; /* used in the jj loop for number of supported LEDs */ - int port_num = -1; /* 'case: p' port number */ - int freq = 0; - - /* Let's dynamically figure out what this program was called as - * in case someone renames the utility. */ - char *progname = argv[0]; - /* if there is a '/' before the program name, then truncate the data - * before it. In case there is no '/' before the filename, the - * if statement resets progname to argv[0]. - * This program will segFault without the test. */ - if((progname = strrchr (progname, '/')) != 0) { - /* remove the first char, '/', from the beginning of the - * string by incrementing the pointer location. */ - progname++; - } else { - /* This will seem cheap, but if we get here then progname - * is a null pointer and we need to fill it with something. - * In this case, we'll fill it with the called program name. */ - progname = argv[0]; - } - /* done figuring out the program name. */ - - if (argc < 2) { - help(progname); - exit(1); - } - - - while (1) { - /* getopt_long uses this option index */ - int option_index = 0; - - c = getopt_long(argc, argv, short_options, long_options, - &option_index); - - /* Detect the end of the options. */ - if (c == -1) { - break; - } - - switch (c) { - case 0: - if (long_options[option_index].flag != 0) - break; - printf ("option %s", long_options[option_index].name); - if (optarg) - printf (" with arg %s", optarg); - printf ("\n"); - break; - - case 'h': - /* print help to the screen with the parsed program name */ - help(progname); - break; - - case 'p': - - /* split the string at the 'delims' and then loop */ - result = strtok( optarg, delims ); - while( result != NULL ) { - port_num = abs(atoi(result)); - if(port_num > SUPPORTED_DISKS) { - printf("Error: not a valid port number!\n"); - return -1; - } - - /* call the led_set function that initalized and sets the - * paths and data for the disks LED */ - led_set(port_num); - - /* move to the next entry after the current deliminator, - * this should be the next port number */ - result = strtok( NULL, delims ); - } - break; - - case 'd': - - /* split the string at the 'delims' and then loop */ - result = strtok( optarg, delims ); - - while( result != NULL ) { - - port_num = whatportis(result); - - /* bounds checking, if anything is out of bounds here - * the tool will segfault - we must quit! */ - if(strlen(result) != 3 || port_num > SUPPORTED_DISKS - || port_num < 0) { - printf("Error: not a valid device: %s\n", result); - return -1; - - } - - /* call the led_set function that initalized and sets the - * paths and data for the disks LED */ - led_set(port_num); - - /* move to the next entry after the current deliminator, - * this should be the next port number */ - result = strtok( NULL, delims ); - } - break; - - case 's': - /* strcmp exits 0 for true, it needs to be 1 for locate */ - if (!(strcmp(optarg, "locate"))) { - /* since we don't know which disk LEDs have been - * init'd we'll just cycle through all of them. - */ - for(ii=0;ii<=SUPPORTED_DISKS; ii++) { - - /* the problem with cycling through all of the disks - * is that the un-init'd ones have junk data that we - * don't want to write to the fs; a simple check is - * made to make sure that the disk was init'd. */ - for (leds=0;leds<LEDS_PER_DISK;leds++) { - if((disks[ii].data[leds].next_state == LOCATE_LED) - && (disks[ii].init == 1009)){ - printf("Locate LED was "); - /* some number that's unlikely to be random */ - disks[ii].data[leds].init = 1009; - - if(led_write(&disks[ii].data[leds], 1) \ - != WRITE_BUF) - printf("not set"); - else - printf("set"); - - printf(" for %s\n",disks[ii].name); - } - } - } - } - - if (!(strcmp(optarg, "fault"))) { - /* since we don't know which disk LEDs have been - * init'd we'll just cycle through all of them. - */ - for(ii=0;ii<=SUPPORTED_DISKS; ii++) { - /* the problem with cycling through all of the disks - * is that the un-init'd ones have junk data that we - * don't want to write to the fs; a simple check is - * made to make sure that the disk was init'd. */ - for (leds=0;leds<LEDS_PER_DISK;leds++) { - if((disks[ii].data[leds].next_state == FAULT_LED) && - (disks[ii].init == 1009)) { - /* some number that's unlikely to be random */ - disks[ii].data[leds].init = 1009; - - printf("Fault LED was "); - if(led_write(&disks[ii].data[leds], 1) \ - != WRITE_BUF) - printf("not set"); - else - printf("set"); - - printf(" for %s\n",disks[ii].name); - } - } - } - } - - if (!(strcmp(optarg, "rebuild"))) { - /* since we don't know which disk LEDs have been - * init'd we'll just cycle through all of them. - */ - for(ii=0;ii<=SUPPORTED_DISKS; ii++) { - /* the problem with cycling through all of the disks - * is that the un-init'd ones have junk data that we - * don't want to write to the fs; a simple check is - * made to make sure that the disk was init'd. */ - for (leds=0;leds<LEDS_PER_DISK;leds++) { - if((disks[ii].data[leds].next_state == REBUILD_LED) - && (disks[ii].init == 1009)) { - /* some number that's unlikely to be random */ - disks[ii].data[leds].init = 1009; - - printf("Rebuild LED was "); - if(led_write(&disks[ii].data[leds], 1) \ - != WRITE_BUF) - printf("not set"); - else - printf("set"); - - printf(" for %s\n",disks[ii].name); - } - } - } - } - - if (!(strcmp(optarg, "off"))) { - /* since we don't know which disk LEDs have been - * init'd we'll just cycle through all of them. - */ - for(ii=0;ii<=SUPPORTED_DISKS; ii++) { - /* the problem with cycling through all of the disks - * is that the un-init'd ones have junk data that we - * don't want to write to the fs; a simple check is - * made to make sure that the disk was init'd. */ - for (leds=0;leds<LEDS_PER_DISK;leds++) { - if((disks[ii].data[leds].next_state == OFF_LED) && - (disks[ii].init == 1009)) { - /* some number that's unlikely to be random */ - disks[ii].data[leds].init = 1009; - - printf("LED was "); - if(led_write(&disks[ii].data[leds], 1) \ - != WRITE_BUF) - printf("not set"); - else - printf("set"); - - printf(" to off for %s\n",disks[ii].name); - } - } - } - } - if (!(strcmp(optarg, "activity"))) { - /* since we don't know which disk LEDs have been - * init'd we'll just cycle through all of them. - */ - for(ii=0;ii<=SUPPORTED_DISKS; ii++) { - /* the problem with cycling through all of the disks - * is that the un-init'd ones have junk data that we - * don't want to write to the fs; a simple check is - * made to make sure that the disk was init'd. */ - for (leds=0;leds<LEDS_PER_DISK;leds++) { - if((disks[ii].data[leds].next_state == ACTIV_LED) && - (disks[ii].init == 1009)) { - /* some number that's unlikely to be random */ - disks[ii].data[leds].init = 1009; - - printf("Activity LED was "); - if(led_write(&disks[ii].data[leds], 1) \ - != WRITE_BUF) - printf("not set"); - else - printf("set"); - - printf(" for %s\n",disks[ii].name); - } - } - } - } - - break; - - case 'f': - freq = abs(atoi(optarg)); - if(freq < 1 || freq > 10) - printf("Invalid frequency, please use between 1 and 10\n"); - else - _led_rate = freq; - break; - - case 'V': - version(); - break; - - default: - //printf("Unknown command\n"); - help(progname); - exit(1); - } - } - - /* Print any remaining command line arguments that were not parsed */ - if (optind < argc) { - printf ("Error! Unknown arguments: "); - while (optind < argc) - printf ("%s ", argv[optind++]); - printf("\nPlease use -h for more information.\n"); - } - - /* not sure if we need to close the file - *close(disks[jj].data[0].path); */ - - /* start the timer. It loops continuously because the timer needs - * to be reset. This might not be the best idea since we've basically - * locked the tool down until the timer fails. */ - if(_led_rate != 0) - for(;;) - led_timer(); - - exit (0); -} - -/* used for debugging. Could be removed */ -int port_status(struct led_context *data, int port) { - char Buff[8]; - read(data->fd, Buff, sizeof(Buff)); - printf("Port: %d buff: %d\n", port, abs( atoi( Buff ) )); - return 0; +int main(int argc, char **argv){ + char delims[] = ","; /* used to split --disk argument sda,sdb,sdc */ + char* result; /* the result of the 'split' disks used in the -d argument */ + int c; /* used as the command argument case selector */ + int port_num = -1; /* 'case: p' port number */ + int freq = 0; /* blink rates reset to zero- disable blinking*/ + int next_state = NONE; /* store next sate of LEDs*/ + char message[MESSAGE_LEN]; /* store messages */ + int i = 0; + + /* Let's dynamically figure out what this program was called as + * in case someone renames the utility. */ + char *progname = argv[0]; + /* if there is a '/' before the program name, then truncate the data + * before it. In case there is no '/' before the filename, the + * if statement resets progname to argv[0]. + * This program will segFault without the test. */ + if((progname = strrchr (progname, '/')) != 0){ + /* remove the first char, '/', from the beginning of the + * string by incrementing the pointer location. */ + progname++; + } + else{ + /* This will seem cheap, but if we get here then progname + * is a null pointer and we need to fill it with something. + * In this case, we'll fill it with the called program name. */ + progname = argv[0]; + } + /* done figuring out the program name. */ + + if(argc < 2){ + help(progname); + exit(1); + } + + led_init(); + + while(1){ + /* getopt_long uses this option index */ + int option_index = 0; + char *end_str = 0; + + c = getopt_long(argc, argv, short_options, long_options, + &option_index); + + /* Detect the end of the options. */ + if(c == -1){ + break; + } + + switch(c){ + case 0: + if(long_options[option_index].flag != 0) + break; + printf ("option %s", + long_options[option_index].name); + if(optarg) + printf (" with arg %s", optarg); + printf ("\n"); + break; + case 'h': + /* print help to the screen with the + * parsed program name */ + help(progname); + break; + case 'p': + /* split the string at the 'delims' and then loop */ + result = strtok(optarg, delims); + while(result != NULL){ + port_num = strtol(result, &end_str, 10); + if(port_num < 0 || *end_str != '\0'){ + printf("Error: %s is not a " + "valid port number!\n", + result); + return -1; + } + /* call the led_set function that + * initalized and sets the + * paths and data for the disks LED */ + if(led_set(port_num) != 0){ + printf("Error: can not initialize " + "data for disks LED!\n"); + return -1; + } + /* move to the next entry after the + * current deliminator, + * this should be the next port number */ + result = strtok(NULL, delims); + } + break; + case 'd': + /* split the string at the 'delims' and then loop */ + result = strtok(optarg, delims); + while(result != NULL){ + if((port_num = whatportis(result)) == -1){ + printf("Error: can not extract " + "port number!\n"); + return -1; + } + /* bounds checking, if anything is + * out of bounds here + * the tool will segfault - we must quit! */ + if(strlen(result) != 3 || port_num < 0){ + printf("Error: not a valid " + "device: %s\n", result); + return -1; + + } + /* call the led_set function that + * initalized and sets the + * paths and data for the disks LED */ + if(led_set(port_num) != 0){ + printf("Error: can not initialize " + "data for disks LED!\n"); + return -1; + } + /* move to the next entry after the + * current deliminator, + * this should be the next port number */ + result = strtok(NULL, delims); + } + break; + case 's': + if(!(strcmp(optarg, "locate"))){ + next_state = LOCATE_LED; + sprintf(message,"Locate LED was "); + } + else if(!(strcmp(optarg, "fault"))){ + next_state = FAULT_LED; + sprintf(message,"Fault LED was "); + } + else if(!(strcmp(optarg, "rebuild"))){ + next_state = REBUILD_LED; + sprintf(message, "Rebuild LED was "); + } + else if(!(strcmp(optarg, "off"))){ + next_state = OFF_LED; + sprintf(message, "Off LED was "); + } + else if(!(strcmp(optarg, "activity"))){ + next_state = ACTIV_LED; + sprintf(message, "Activate LED was "); + } + else{ + printf("Error: Unknown option: %s!\n", + optarg); + return -1; + } + break; + case 'f': + freq = strtol(optarg, &end_str, 10); + if(freq < 1 || freq > 10 || *end_str != '\0'){ + printf("Error: Invalid frequency, " + "please use number between 1 and 10!\n"); + return -1; + } + else + _led_rate = freq; + break; + case 'V': + version(); + break; + default: + printf("Unknown command\n"); + help(progname); + exit(1); + } + } + + /* Print any remaining command line arguments that were not parsed */ + if(optind < argc){ + printf ("Error! Unknown arguments: "); + while (optind < argc) + printf ("%s ", argv[optind++]); + printf("\nPlease use -h for more information.\n"); + } + + /* not sure if we need to close the file + *close(disks[jj].data[0].path); */ + + /* start the timer for non inteligent backplanes. + * It loops continuously because the timer needs + * to be reset. */ + if(_led_rate != 0){ + sigal_flag = 1; + while(1){ + /* use signals to alert the user if the alarm failed */ + if (signal(SIGALRM, alarm_handler) == SIG_ERR) { + printf("Error: Unable to catch SIGALRM\n!"); + } + if(sigal_flag){ + if(led_timer() != 0){ + printf("Error: Unable to set " + "LEDs timer!\n"); + exit(0); + } + if(led_change_state() != 0){ + printf("Error: Unable to change " + "state of LEDs\n"); + exit(0); + } + sigal_flag = 0; + } + } + } + if(next_state == NONE){ + printf("Error: State of LED must be specified!\n"); + exit(0); + } + while(disks[i++].host_port == PORT_FREE){ + if(i > MAX_DISK_IDX){ + printf("Error: Port number or disk name must be specified!\n"); + exit(0); + } + } + if(led_execute(next_state, message) != 0){ + printf("Error: Unable to execute set command!\n"); + } + exit(0); } -int led_write(struct led_context *data, int chg_state) { - - /* set the return state in case write fails to */ - int return_state = -1; - - /* this timeout is needed because the utility - * will write to the sgpio bus too fast and - * the Intel backplane will miss the data */ - usleep(SGPIO_wait); - - /* get the net state of the led from the data structure */ - int state = data->next_state; - - /* if the change state is set to 0, then the LED should be turned off - * and the state from the data structure should be ignored */ - if(chg_state == 0) - state = 0; - - /* create a char buffer to store the led state since - * we will be printing it as a char/string to the fs */ - char buf[WRITE_BUF]; - - /* cast buf with a string of the decimal value of the led state */ - sprintf(buf, "%d", state); - - /* This is just debug to make sure the 'data' is correct */ - if (verbose_flag) { - printf("led_write: led state: %d led next state: %d path: %s\n",\ - data->current_state, state, data->path); - } - - /* use the file handler in the data struct to print the buffer - * and only print x bytes of the size of the buffer. - * The number returned from write is the number of bytes written. - * Write should only ever write two bytes, else it's a failure - */ - return_state = write(data->fd,buf,sizeof(buf)); - //printf("ledwrite return: %d\n\n", return_state); - /* time to swap the LED states. This may not be needed if - flashing the LEDs is not required */ - data->next_state = data->current_state; - data->current_state = state; - - /* should return the buf size */ - return return_state; -} - -int isSWControl(int port) { - char location[49]; - int loc; - int buffer; - - sprintf(location,"%s%s/%d:0:0:0/device/sw_control", - SYSFS_BASE, SW_CONTROL, port); - loc = open("test", O_RDWR, 0); - char Buff[2]; - read(loc, Buff, sizeof(Buff)); - buffer = abs( atoi( Buff ) ); - printf("isSWControl: %d buff: %d\n", port, buffer); - return buffer; -} - -int whatportis(const char *disk) { - int port; - /* /sys/class/scsi_device/0:0:0:0/device/block:sda - * the path in the fs is 47 char */ - char location[48]; - - /* quit if disk is not 3 chars */ - if (strlen(disk) != 3) - return -1; - - for(port = 0; port <= SUPPORTED_DISKS; port++ ) { - /* fill 'location' with a string of SYSFS_BASE, port number, port name - * and disk name */ - sprintf(location,"%s%s/%d:0:0:0/device/block:%s", - SYSFS_BASE, SW_CONTROL, port, disk); - - if (verbose_flag) - printf("whatportis: disk: %s location: %s\n", disk, location); - - /* chdir returns 0 for completion and -1 for incomplete */ - if (chdir(location) == 0) - return port; - } - return -1; +void led_init(void){ + int i; + for(i=0;i<=MAX_DISK_IDX;i++){ + disks[i].host_port = PORT_FREE; + } } -void alarm_handler(int signo) { +/* since we don't know which disk LEDs have been + * init'd we'll just cycle through all of them. + */ +int led_execute(int next_state, char *message){ + int leds = 0; + int ii = 0; + for(ii=0;ii<=MAX_DISK_IDX; ii++){ + /* the problem with cycling through all of the disks + * is that the un-init'd ones have junk data that we + * don't want to write to the fs; a simple check is + * made to make sure that the disk was init'd. */ + for(leds=0;leds<LEDS_PER_DISK;leds++){ + if((disks[ii].data[leds].next_state == next_state) + && (disks[ii].init == INITIATED)){ + disks[ii].data[leds].init = INITIATED; + if(led_write(&disks[ii].data[leds], 1) == -1){ + syslog(LOG_INFO, "%snot set for %s\n", + message, disks[ii].name); + if(verbose_flag) + printf("%snot set for %s\n", + message, disks[ii].name); + return -1; + } + else{ + syslog(LOG_INFO, "%sset for %s\n", + message, disks[ii].name); + if(verbose_flag) + printf("%sset for %s\n", + message, disks[ii].name); + } + } + } + } + return 0; +} + +int led_change_state(void){ int myleds = 0; int mydisks = 0; - if (verbose_flag) - printf("Timer hit! %d\n", abs(time(NULL))); - - for (mydisks=0;mydisks<=SUPPORTED_DISKS;mydisks++) { - for(myleds=0;myleds<LEDS_PER_DISK;myleds++) { - if (disks[mydisks].data[myleds].init == 1009) { - if (verbose_flag) { - printf("Timer:\n\tname: %s\n", disks[mydisks].name); - printf("\tdisk: %d led: %d\n", mydisks, myleds); + + for(mydisks=0;mydisks<=MAX_DISK_IDX;mydisks++){ + for(myleds=0;myleds<LEDS_PER_DISK;myleds++){ + if(disks[mydisks].data[myleds].init == INITIATED){ + if(verbose_flag){ + printf("Timer:\n\tname: %s\n", + disks[mydisks].name); + printf("\tdisk: %d led: %d\n", + mydisks, myleds); printf("\tcurrent_state: %d\n", - disks[mydisks].data[myleds].current_state); + disks[mydisks].data[myleds].current_state); printf("\tnext_state: %d\n", - disks[mydisks].data[myleds].next_state); - printf("\tinit: %d\n\n", disks[mydisks].data[myleds].init); + disks[mydisks].data[myleds].next_state); + printf("\tinit: %d\n\n", + disks[mydisks].data[myleds].init); + } + if(led_write(&disks[mydisks].data[myleds], 1) == -1){ + printf("Error: Failed to set led %d for " + "port %d!\n", myleds, disks[mydisks].host_port);//fix!!!! + return -1; } - if(led_write(&disks[mydisks].data[myleds], 1) != WRITE_BUF) - printf("Failed to set led %d for port %d\n", myleds, - mydisks); } } } + return 0; } -/* set up the timer function that runs every x sec or usec */ -int led_timer() { - /* create the delay structure */ - struct itimerval delay; - int ret; - - /* use signals to alert the user if the alarm failed */ - if (signal(SIGALRM, alarm_handler) == SIG_ERR) { - perror("Unable to catch SIGALRM"); +int led_write(struct led_context *data, int chg_state){ + + /* set the return state in case write fails to */ + int return_state = -1; + + /* this timeout is needed because the utility + * will write to the sgpio bus too fast and + * the Intel backplane will miss the data */ + usleep(SGPIO_WAIT); + + /* get the next state of the led from the data structure */ + int state = data->next_state; + + /* if the change state is set to 0, then the LED should be turned off + * and the state from the data structure should be ignored */ + if(chg_state == 0) + state = 0; + + /* create a char buffer to store the led state since + * we will be printing it as a char/string to the fs */ + char buf[WRITE_BUF]; + + /* cast buf with a string of the decimal value of the led state */ + if(sprintf(buf, "%d", state) < 1){ + printf("Error: Unable to write LED state to buffor!\n"); return -1; } - - float temp_rate = 1.0/_led_rate/2; - int rate = temp_rate*1000000; - //printf("%d", test); - - - - /* the time values for the alarm. It has uS granularity */ - delay.it_value.tv_sec = 0; - delay.it_value.tv_usec = rate; - delay.it_interval.tv_sec = 0; - delay.it_interval.tv_usec = rate; - - /* reset the timer with the above time values */ - ret = setitimer(ITIMER_REAL, &delay, NULL); - - /* if the timer failed to reset, error out */ - if (ret) { - perror("setitimer\n"); - return -1; + + /* This is just debug to make sure the 'data' is correct */ + if(verbose_flag){ + printf("led_write: led state: %d led next state: %d path: %s\n", + data->current_state, state, data->path); + } + + /* use the file handler in the data struct to print the buffer + * and only print x bytes of the size of the buffer. + * The number returned from write is the number of bytes written. + * Write should only ever write two bytes, else it's a failure + */ + return_state = write(data->fd,buf,strlen(buf)); + if(return_state == -1){ + printf("Error: Unable to write to descriptor!\n"); + return return_state; } - pause(); - return 0; + data->next_state = data->current_state; + data->current_state = state; + + /* should return the buf len */ + return return_state; } -int led_set(int port_num) { +int led_set(int port_num){ int leds = 0; + int index = 0; + + while(disks[index].host_port != PORT_FREE){ + if(++index > MAX_DISK_IDX){ + printf("Error: Too many disks!\n"); + return -1; + } + } + /* Give the port a name */ - sprintf(disks[port_num].name,"Port %d", port_num); - disks[port_num].init = 1009; + if(sprintf(disks[index].name,"Port %d", port_num) < 0){ + printf("Error: Unable to write port number to buffor!\n"); + return -1; + } + disks[index].init = INITIATED; /* set up the LEDs for each port */ - for(leds=0;leds<LEDS_PER_DISK;leds++) { + for(leds=0;leds<LEDS_PER_DISK;leds++){ /* creates the inital LED struct with * current_state and next_state */ - init_led(&disks[port_num].data[leds]); - - + init_led(&disks[index].data[leds]); + /* if the disk has already been init'd then skip it. - * This would only occur if the user specified the - * same port/disk twice - if (disks[port_num].data[leds].init == 1009) + * This would only occur if the user specified the + * same port/disk twice + if (disks[port_num].data[leds].init == INITIATED) break; */ - + /* populate the port path */ - sprintf(disks[port_num].data[leds].path,"%s%s%d%s",\ - SYSFS_BASE, PORT_NAME, port_num, EM_MESSAGE); - - - disks[port_num].data[leds].next_state = _led_list[leds]; - - - if (verbose_flag) { + if(sprintf(disks[index].data[leds].path,"%s%s%d%s",\ + SYSFS_BASE, PORT_NAME, port_num, EM_MESSAGE) < 0){ + printf("Error: Unable to write port path to buffor!\n"); + return -1; + } + + disks[index].data[leds].next_state = _led_list[leds]; + + + if(verbose_flag){ printf("port %d leds %d\n" \ - "next_state %d init %d\n", port_num, leds, - disks[port_num].data[leds].next_state, - disks[port_num].data[leds].init); + "next_state %d init %d\n", port_num, leds, + disks[index].data[leds].next_state, + disks[index].data[leds].init); } - + /* create the file handler and set it as read/write * to allow port_status to read em_message */ - disks[port_num].data[leds].fd = - open(disks[port_num].data[leds].path, O_RDWR,0); - + disks[index].data[leds].fd = + open(disks[index].data[leds].path, O_RDWR,0); + /* if the file handler failed, the path to the * requested disk was not found, we'll need to quit */ - if (disks[port_num].data[leds].fd < 0) { - printf("Unable to find port: %d\n", port_num); - return -1; - } - } + if(disks[index].data[leds].fd < 0){ + printf("Error: Unable to find path to requested disk: port %d!\n", + port_num); + return -1; + } + } /* done setting up the LEDs */ + disks[index].host_port = port_num; return 0; } + +int find_port_number(char *location){ + DIR *dir; + char *ptr = NULL; + int port = -1; + if((dir = opendir(location))){ + closedir(dir); + ptr = strchr((const char *)&location[PORT_NUM_LOC], ':'); + if(ptr){ + *ptr = 0; + port = atoi((char *) &location[PORT_NUM_LOC]); + } + } + return port; +} + + +int whatportis(const char *disk){ + int port = -1; + /* /sys/class/scsi_device/0:0:0:0/device/block:sda + * the path in the fs is 47 char */ + char location[FS_PATH_LEN+1]; + + char dir_qan, len; + int i; + struct dirent **dir_ent; + + /* quit if disk is not 3 chars */ + if(strlen(disk) != 3) + return -1; + + dir_qan = scandir(sys_scsi_path, &dir_ent, 0, alphasort); + if(dir_qan < 0){ + printf("Error: /sys/class/scsi_disk not contain any directory\n"); + return -1; + } + + strcpy(location, sys_scsi_path); + len = strlen(location); + + for(i=0;i<dir_qan;i++){ + const char *dir_name = dir_ent[i]->d_name; + if(port == -1){ + sprintf(location + len, "%s%s%s", + dir_name, sys_scsi_dev_blk_sles, disk); + port = find_port_number(location); + if(port == -1){ + sprintf(location + len, "%s%s%s", + dir_name, sys_scsi_dev_blk_rh, disk); + port = find_port_number(location); + } + } + free(dir_ent[i]); + } + free(dir_ent); + return port; +} + +void alarm_handler(int signo){ + sigal_flag = 1; +} + +/* set up the timer function that runs every x sec or usec */ +int led_timer(){ + /* create the delay structure */ + struct itimerval delay; + int ret; + + float temp_rate = 1.0/_led_rate/2; + int rate = temp_rate*1000000; + + /* the time values for the alarm. It has uS granularity */ + delay.it_value.tv_sec = 0; + delay.it_value.tv_usec = rate; + delay.it_interval.tv_sec = 0; + delay.it_interval.tv_usec = rate; + + /* reset the timer with the above time values */ + ret = setitimer(ITIMER_REAL, &delay, NULL); + + /* if the timer failed to reset, error out */ + if(ret){ + perror("setitimer\n"); + return -1; + } + return 0; +} + + diff -urN sgpio_rh_snap4/version.h sgpio_new/version.h --- sgpio_rh_snap4/version.h 2008-07-14 16:01:37.000000000 +0200 +++ sgpio_new/version.h 2008-11-25 09:05:24.000000000 +0100 @@ -8,7 +8,7 @@ * * 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. See the GNU General Public License + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * for more details. * * You should have received a copy of the GNU General Public License along @@ -18,11 +18,11 @@ /* * Intel SGPIO enclosure management utility - * Author: Eric R Hall <Eric.R.Hall@intel.com> - * + * Author: Eric R Hall <Eric.R.Hall@intel.com> + * */ #define UTIL_VERSION_MAJOR 0 -#define UTIL_VERSION_MINOR 9 +#define UTIL_VERSION_MINOR 10 #define SGPIO_VERSION_MAJOR 1 #define SGPIO_VERSION_MINOR 2
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