> > why is first_free always >= 0? I don't see anything that guarantees
> > that,
>
> The following two subsequent ifs gurantees that.
>
> if (ind < 0) {
> err = -1;
> *bad_wr = wr;
> break;
> }
>
> wqe = get_wqe(srq, ind);
> next_ind = *wqe_to_link(wqe);
>
> if (next_ind < 0) {
> err = -1;
> *bad_wr = wr;
> break;
> }
Duh... I missed that. Thanks for the clue.
but now am I wrong to think that we could remove the first test of ind
(not next_ind) in the fast path? the second test guarantees that ind
never becomes negative, as you pointed out.
- R.
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