>>  Noriyuki Soda <soda@sra.co.jp> wrote:
>> 
>>  > About bus_dmamap_callback_t, I think that reducing bounce memory size
>>  > is certainly good thing. But it is pain if we must use callback in all
>>  > cases.  (Think about hardware_scb in ahc driver.)
> 
>
>Yes, I found this to be problematic when I did the FreeBSD/CAM
>version of the ISP driver. Personally, I don't see it as being
>that difficult to take a flag in the alloc case that says
>"alloc now or return failure", but I'll leave that up to Justin
>to decide (I coped).

Where do you return the dm_seg data and in what space do you allocate it?

--
Justin