bool net_lundman_zfs_zvol::start (IOService *provider)
{
bool res = super::start(provider);
IOLog("ZFS: Loading module ... \n");
/*
* Initialize /dev/zfs, this calls spa_init->dmu_init->arc_init-> etc
*/
zfs_ioctl_osx_init();
///sysctl_register_oid(&sysctl__debug_maczfs);
//sysctl_register_oid(&sysctl__debug_maczfs_stalk);
zfs_vfsops_init();
/*
* When is the best time to start the system_taskq? It is strictly
* speaking not used by SPL, but by ZFS. ZFS should really start it?
*/
system_taskq_init();
/*
* hostid is left as 0 on OSX, and left to be set if developers wish to
* use it. If it is 0, we will hash the hardware.uuid into a 32 bit
* value and set the hostid.
*/
if (!zone_get_hostid(NULL)) {
uint32_t myhostid = 0;
IORegistryEntry *ioregroot = IORegistryEntry::getRegistryRoot();
if(ioregroot) {
//IOLog("ioregroot is '%s'\n", ioregroot->getName(gIOServicePlane));
IORegistryEntry *macmodel = ioregroot->getChildEntry(gIOServicePlane);
if(macmodel) {
//IOLog("macmodel is '%s'\n", macmodel->getName(gIOServicePlane));
OSObject *ioplatformuuidobj;
//ioplatformuuidobj = ioregroot->getProperty("IOPlatformUUID", gIOServicePlane, kIORegistryIterateRecursively);
ioplatformuuidobj = macmodel->getProperty(kIOPlatformUUIDKey);
if(ioplatformuuidobj) {
OSString *ioplatformuuidstr = OSDynamicCast(OSString, ioplatformuuidobj);
//IOLog("IOPlatformUUID is '%s'\n", ioplatformuuidstr->getCStringNoCopy());
myhostid = fnv_32a_str(ioplatformuuidstr->getCStringNoCopy(),
FNV1_32A_INIT);
sysctlbyname("kern.hostid", NULL, NULL, &myhostid, sizeof(myhostid));
printf("ZFS: hostid set to %08x from UUID '%s'\n",
myhostid, ioplatformuuidstr->getCStringNoCopy());
}
}
}
}
return res;
}
void
taskq_init(void)
{
taskq_ent_cache = kmem_cache_create("taskq_ent_cache",
sizeof (taskq_ent_t), 0, taskq_ent_constructor,
taskq_ent_destructor, NULL, NULL, NULL, 0);
taskq_cache = kmem_cache_create("taskq_cache", sizeof (taskq_t),
0, taskq_constructor, taskq_destructor, NULL, NULL, NULL, 0);
system_taskq_init();
}
