Roland Dreier wrote:
> How should I add this to the API?
>
> Perhaps we just document the format of an rkey in the struct ib_mr.
> Thus the app would do this to change the key before posting the
> fast_reg_mr wr (coded to be explicit, not efficient):
>
> u8 newkey;
> u32 newrkey;
>
> newkey = 0xaa;
> newrkey = (mr->rkey & 0xffffff00) | newkey;
> mr->rkey = newrkey
> wr.wr.fast_reg.mr = mr;
Don't like it -- too easy for the consumer to screw up the data
structures.
Seems simpler to just add a u8 "key" field (or maybe there's a better
name) to the work request.
And then the provider updates the mr->rkey field as part of WR processing?
Steve.
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