[openib-general] Re: understanding mthca_alloc_db()

[yipee]

yipee <yipeeyipeeyipeeyipee <at> yahoo.com> writes:

> 
> Roland Dreier <rdreier <at> cisco.com> writes:
> >
> 
> [snip]

Ok I've found the correct PRM (InfiniHost_III_Programmers_Reference_Manual_0_86.
pdf).


Any comment on this next question?
> We would like to do rdma to memory mapped I/O so a remote node can write, 
> for example, directly to a device. We mapped some virtual address to 
> the physical address of the device. When we tried to register this 
> virtual memory area the ib driver failed (get_user_pages() failed).  
> Can you please advice about how to make this work?

y