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
