/**
* init_node
*
* @param node
* @returns 0 on success, !0 otherwise
*/
static int
init_node(struct dr_node *node)
{
struct dirent **de_list, *de;
char *newpath;
int count;
int rc, i;
if (node->is_owned)
find_ofdt_dname(node, node->ofdt_path);
count = scandir(node->ofdt_path, &de_list, 0, alphasort);
for (i = 0; i < count; i++) {
de = de_list[i];
if ((de->d_type != DT_DIR) || is_dot_dir(de->d_name))
continue;
newpath = zalloc(strlen(node->ofdt_path) +
strlen(de->d_name) + 2);
if (newpath == NULL) {
say(ERROR, "Could not allocate path for node at "
"%s/%s\n", node->ofdt_path, de->d_name);
return 1;
}
sprintf(newpath, "%s/%s", node->ofdt_path, de->d_name);
rc = examine_child(node, newpath);
if (rc)
return rc;
}
return 0;
}
/**
* init_node
*
* @param node
* @returns 0 on success, !0 otherwise
*/
static int
init_node(struct dr_node *node)
{
DIR *d;
struct dirent *de;
char child_path[DR_PATH_MAX];
uint32_t my_drc_index;
int rc;
if (node->is_owned)
find_ofdt_dname(node, node->ofdt_path);
d = opendir(node->ofdt_path);
if (!d)
return -1;
rc = 0;
while ((de = readdir(d)) != NULL) {
if ((de->d_type != DT_DIR) || is_dot_dir(de->d_name))
continue;
sprintf(child_path, "%s/%s", node->ofdt_path, de->d_name);
if (get_my_drc_index(child_path, &my_drc_index))
continue;
if (node->dev_type == PCI_HP_DEV) {
if (node->drc_index == my_drc_index) {
/* Add hotplug children */
add_child_node(node, child_path);
}
} else {
if (!node->is_owned) {
if (node->drc_index == my_drc_index) {
/* Update node path */
snprintf(node->ofdt_path, DR_PATH_MAX,
"%s", child_path);
node->is_owned = 1;
/* Populate w/ children */
rc = init_node(node);
if (rc)
break;
}
} else {
/* Add all DR-capable children */
add_child_node(node, child_path);
}
}
}
closedir(d);
return rc;
}
/**
* find_ofdt_dname
*
* Find "name" of the device_node that is a child
* of given node and its "ibm,loc-code" is the same
* as node->name.
*
* @param node
* @param path
* @param ofdt_dname
*/
static int
find_ofdt_dname(struct dr_node *node, char *path)
{
DIR *d = NULL;
struct dirent *de;
struct stat sb;
char new_path[DR_PATH_MAX];
char loc_code[DR_BUF_SZ];
char *q;
int found = 0;
int rc;
rc = get_property(path, "ibm,loc-code", &loc_code, DR_BUF_SZ);
if ((rc == 0) && (strstr(loc_code, node->drc_name))) {
rc = get_property(path, "name", node->ofdt_dname,
sizeof(node->ofdt_dname));
if (rc == 0)
return 1;
}
/* First look for a ofdt node that has ibm,loc-code property
* with a value that matches node->name.
*
* Set node->node->ofdt_dname to "name" of the ofdt node.
*/
d = opendir(path);
if (d == NULL) {
say(ERROR, "Could not open dir %s\n%s\n", path,
strerror(errno));
return 0;
}
strcpy(new_path, path);
q = new_path + strlen(new_path);
*q++ = '/';
while(((de = readdir(d)) != NULL) && (! found)) {
/* skip all dot files */
if (de->d_name[0] == '.')
continue;
strcpy(q, de->d_name);
if (lstat(new_path, &sb) < 0)
continue;
if (S_ISLNK(sb.st_mode))
continue;
if (S_ISDIR(sb.st_mode)) {
rc = get_property(path, "ibm,loc-code", &loc_code,
DR_BUF_SZ);
if ((rc != 0) || (! strstr(loc_code, node->drc_name))) {
found = find_ofdt_dname(node, new_path);
continue;
}
rc = get_property(path, "name", node->ofdt_dname,
sizeof(node->ofdt_dname));
if (rc == 0) {
found = 1;
break;
}
}
}
if (d != NULL)
closedir(d);
return found;
}
