> >> +struct rvt_rwqe {
> >> + u64 wr_id;
> >> + u8 num_sge;
> >> + struct ib_sge sg_list[0];
> >> +};
> >> +
> >> +/*
> >> + * This structure is used to contain the head pointer, tail pointer,
> >> + * and receive work queue entries as a single memory allocation so
> >> + * it can be mmap'ed into user space.
> >> + * Note that the wq array elements are variable size so you can't
> >> + * just index into the array to get the N'th element;
> >> + * use get_rwqe_ptr() instead.
> >
> >Can you add/use an entry_size field?
>
> I think we could work something like that, however what we have in
> qib/hfi1
> also works. Any reason we really should change this?
I did not check to see what the drivers do. Using entry_size is
straightforward, may provide the best performance, and can be done in common
code, versus adding callbacks to all users.
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