Roland Dreier wrote:
> Why is there a work completion opcode IB_WC_RECV_RDMA_WITH_IMM -and- a
> work completion flag IB_WC_WITH_IMM indicating the immediate data is
> present in the WC?
Off the top of my head ... because RDMA operations usually generate no
completion on the target side, so you need some opcode for when one
comes in with immediate data.
I'd have to check what the IB verbs spec says about this case (obviously
iWARP doesn't have to worry about immediate data)
What I was thinking was that:
completion with IB_WC_RECV + IB_WC_WITH_IMM is the same information as
completion wtih IB_WC_RECV_RDMA_WITH_IMM + IB_WC_WITH_IMMM.
And I was wondering if there was a good reason for this, and whether we
need both an opcode -and- a flag for recv completions that are due to an
ingress SEND_WITH_INV...
Seems like you only either need the opcode or the flag, but not both...
Steve.
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