static void __init zfcp_init_device_setup(char *devstr)
{
char *token;
char *str;
char busid[ZFCP_BUS_ID_SIZE];
u64 wwpn, lun;
/* duplicate devstr and keep the original for sysfs presentation*/
str = kmalloc(strlen(devstr) + 1, GFP_KERNEL);
if (!str)
return;
strcpy(str, devstr);
token = strsep(&str, ",");
if (!token || strlen(token) >= ZFCP_BUS_ID_SIZE)
goto err_out;
strncpy(busid, token, ZFCP_BUS_ID_SIZE);
token = strsep(&str, ",");
if (!token || strict_strtoull(token, 0, (unsigned long long *) &wwpn))
goto err_out;
token = strsep(&str, ",");
if (!token || strict_strtoull(token, 0, (unsigned long long *) &lun))
goto err_out;
kfree(str);
zfcp_init_device_configure(busid, wwpn, lun);
return;
err_out:
kfree(str);
pr_err("%s is not a valid SCSI device\n", devstr);
}
static int __init zfcp_module_init(void)
{
int retval = -ENOMEM;
zfcp_data.fsf_req_qtcb_cache = zfcp_cache_create(
sizeof(struct zfcp_fsf_req_qtcb), "zfcp_fsf");
if (!zfcp_data.fsf_req_qtcb_cache)
goto out;
zfcp_data.sr_buffer_cache = zfcp_cache_create(
sizeof(struct fsf_status_read_buffer), "zfcp_sr");
if (!zfcp_data.sr_buffer_cache)
goto out_sr_cache;
zfcp_data.gid_pn_cache = zfcp_cache_create(
sizeof(struct zfcp_gid_pn_data), "zfcp_gid");
if (!zfcp_data.gid_pn_cache)
goto out_gid_cache;
INIT_LIST_HEAD(&zfcp_data.adapter_list_head);
INIT_LIST_HEAD(&zfcp_data.adapter_remove_lh);
sema_init(&zfcp_data.config_sema, 1);
rwlock_init(&zfcp_data.config_lock);
zfcp_data.scsi_transport_template =
fc_attach_transport(&zfcp_transport_functions);
if (!zfcp_data.scsi_transport_template)
goto out_transport;
retval = misc_register(&zfcp_cfdc_misc);
if (retval) {
pr_err("zfcp: registration of misc device zfcp_cfdc failed\n");
goto out_misc;
}
retval = zfcp_ccw_register();
if (retval) {
pr_err("zfcp: Registration with common I/O layer failed.\n");
goto out_ccw_register;
}
if (zfcp_device_setup(device))
zfcp_init_device_configure();
goto out;
out_ccw_register:
misc_deregister(&zfcp_cfdc_misc);
out_misc:
fc_release_transport(zfcp_data.scsi_transport_template);
out_transport:
kmem_cache_destroy(zfcp_data.gid_pn_cache);
out_gid_cache:
kmem_cache_destroy(zfcp_data.sr_buffer_cache);
out_sr_cache:
kmem_cache_destroy(zfcp_data.fsf_req_qtcb_cache);
out:
return retval;
}
