It seems SQSIZE in linux-nvmf is by default set to 128 and seems to be 127 in the NVMf code, but I think the RDMA driver does a +1 to it? This causes SPDK to not accept the cmd.

I suggest either changing this to ">" instead of ">=" or changing the MaxQueueDepth size to 129 by default.

Here's the error msg:
***ERROR*** Invalid SQSIZE 128 (min 1, max 127)