[PATCH 3/3] nvme: code command_id with a genctr for use-after-free validation

[Sagi Grimberg]

>> On Mon, May 17, 2021 at 12:09:46PM -0700, Bart Van Assche wrote:
>>> Additionally, I do not agree with the statement "we never create such
>>> long queues anyways". I have already done this myself.
>>
>> Why? That won't improve bandwidth, and will increase latency. We already
>> have timeout problems with the current default 1k qdepth on some
>> devices.
> 
> For testing FPGA or ASIC solutions that support offloading NVMe it is
> more convenient to use a single queue pair with a high queue depth than
> creating multiple queue pairs that each have a lower queue depth.

And you actually see a benefit for using queues that are >=40956 in
depth? That is surprising to me...