VMXNET3_MAP_NONE
tbi->map_type = VMXNET3_MAP_NONE; /* to help debugging */
BUG_ON(tq->buf_info[i].map_type != VMXNET3_MAP_NONE);
tq->buf_info[i].map_type = VMXNET3_MAP_NONE;
tbi->map_type = VMXNET3_MAP_NONE;