PF_PT_TBLIDX
snl_add_msg_attr_u32(nw, PF_PT_TBLIDX, pool->tblidx);
{ .type = PF_PT_TBLIDX, .off = _OUT(tblidx), .cb = snl_attr_get_uint32 },
{ .type = PF_PT_TBLIDX, .off = _OUT(tblidx), .cb = nlattr_get_uint32 },
nlattr_add_u32(nw, PF_PT_TBLIDX, pool->tblidx);