Re: [PATCH V3 1/5] RDMA/core: Transport-independent access flags

Tom Talpey
2015-07-14T12:24:51Z

On 7/14/2015 4:06 AM, Sagi Grimberg wrote:
> All protocols cares about transferring data and sending messages, so
> it's not a good enough reason for a poor registration method choice.
> This just emphasizes why we need to converge to a single method.

In my opinion, we already have it.

For local registrations, ib_reg_phys_mr()/ib_get_dma_mr(). These are not
quite equivalent, btw.

For remote registrations, ib_post_send(FRMR).

Unfortunately, there exist ancient adapters in-tree that don't support
FRMR, and some ULPs have attempted to work on them. That's why the
situation is confusing.

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