[PATCH v4, under testing] nvme-rdma: support devices with queue size < 32

Leon Romanovsky leonro at mellanox.com
Wed May 3 09:27:08 PDT 2017


On Wed, May 03, 2017 at 07:01:14PM +0300, Sagi Grimberg wrote:
>
> > Hello Jason,
> >
> > As far as I know the compiler only does that for compile-time constants. In
> > this case the divisor (max(queue_size / 2, 1)) is not a compile-time constant.
>
> We could theoretically do a (sig_count & max(queue_size / 2, 1)) but
> that would only do well with power of 2 sized queues...

IMHO, It is not-so-big-deal limitation.

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