Re: [PATCH rdma-next v2 4/5] RDMA/mana_ib: Make kernel CQ arming robust

[sashiko-bot@kernel.org]

> From: Konstantin Taranov <kotaranov@microsoft.com>
> 
> Track CQ polling credits across owner-bit wraps and serialize arming
> with polling under cq_lock. Check the relevant owner bits before
> advancing an outstanding arm, and update the hardware consumer position
> when polling exhausts its credits.
> 
> Expose the allocated CQ capacity to the core. Pull the explicit-index
> GDMA doorbell helper and its declaration forward here because CQ arming
> is its first consumer; ordinary GDMA doorbells retain their zero client
> offset. RC-specific PSN doorbell use is introduced later.
> 
> Preserve the baseline's dynamic interrupt moderation doorbell with a
> zero client offset. Read CQ owner bits through the scattered backing
> pages when the queue allocation falls back to non-contiguous memory.
> 
> Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>

Sashiko has reviewed this patch and found no issues. It looks great!

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