On Wed, 2016-09-28 at 22:11 +0000, Alex Bowden wrote:
> 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.
> 

You are using an old version of the kernel initiator. We reported this bug to
the kernel
developers and it is now fixed in the latest version (4.8).  SPDK was doing this
correctly,
but the kernel was not treating the value as 0's based.

> 
> https://github.com/spdk/spdk/commit/a5be12c376f42108085bd9cfd06fc27818fdb6c9
> 
> 
> 
> I suggest either changing this to ">" instead of ">=" or changing the
> nvmf.conf.in MaxQueueDepth size to 129 by default.
> 
> 
> Here's the error msg:
> ***ERROR*** Invalid SQSIZE 128 (min 1, max 127)
> 
> 
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