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Date: Fri, 27 Oct 2017 17:29:15 -0700 From: Ghazale Hosseinabadi <ghazale.hosseinabadi@...cle.com> To: Hal Rosenstock <hal@....mellanox.co.il> Cc: matanb@...lanox.com, leonro@...lanox.com, parav@...lanox.com, linux-kernel@...r.kernel.org, dledford@...hat.com Subject: Re: [PATCH] IB/mlx5: give back valid speed/width even without plugged in SFP module On 10/27/2017 05:17 PM, Hal Rosenstock wrote: > On 10/27/2017 7:19 PM, Hal Rosenstock wrote: >> On 10/27/2017 7:04 PM, Ghazale Hosseinabadi wrote: >>> >>> On 10/27/2017 03:52 PM, Hal Rosenstock wrote: >>>> On 10/27/2017 5:54 PM, Ghazale Hosseinabadi wrote: >>>>> When running ibstat (if transceiver is not connected in adapter): >>>>> >>>>> ibpanic: [7851] main: stat of IB device 'mlx5_1' failed: Invalid >>>>> argument >>>> Any output before that ? >>> no, It only prints this line. >> and setting the width to 1x in the driver so the rate file is properly >> populated fixes this ? I must be missing something as to what is going >> on in this scenario. > [off list...] > Are you using libibumad or rdma-core package ? rdma-core > Which version ? rdma-core-13-25 > What version of infiniband-diags are you using ? infiniband-diags-1.6.7-1 > Can you build from sources ? > I have patch to libibumad/rdma-core and another patch to ibstat > (infiniband-diags) which I'd like you to try. Is that possible ? I haven't built user-land packages myself, but I can definitely try it. Please send me the patches and I will try to build. Thanks, Ghazale > > Thanks. > > -- Hal > >> sysfs.c:rate_show is inconsistent as it paves over an invalid speed >> setting that to SDR but does not pave over invalid width returning >> -EINVAL but this comment is in another "direction". >> >> -- Hal >> >>> -- Ghazale >>>> I'm trying to understand how far it gets. It >>>> looks to me that empty rate file would be parsed as 0 and ibstat would >>>> show that rate. ibpanic would occur if file was not found but I could be >>>> missing something. >>>> >>>
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