[ofa-general] Query on ibv_post_recv and IBV_SEND_INLINE

[Sean Hefty]

> I have a question on using IBV_SEND_INLINE. From what I understand if I am
> using IBV_SEND_INLINE I technically neednt register the buffer with
> ibv_reg_mr as I dont need the L_Key. But still in the receiver end I
> would have to have the buffer registered to receive the inline data that
> has been posted. If I have an application where I am using a lot of
> small messages, then memory registration would be expensive. Is there
> any other option for receiving inline messages with out actually
> registering the receive buffer.

You could register a larger buffer once and use it with multiple 
receives.  If you needed to, you could copy the data out of the 
registered buffer into separate buffers for processing.

- Sean