t4_register_uld
rc = t4_register_uld(&cxgbei_uld_info, ULD_ISCSI);
rc = t4_register_uld(&c4iw_uld_info, ULD_IWARP);
rc = t4_register_uld(&nvmf_che_uld_info, ULD_NVME);
int t4_register_uld(struct uld_info *, int);
return (t4_register_uld(&tom_uld_info, ULD_TOM));