Messages in this thread | | | Subject | Re: [PATCH] IB/mlx5: give back valid speed/width even without plugged in SFP module | From | Hal Rosenstock <> | Date | Fri, 27 Oct 2017 20:17:44 -0400 |
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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 ? Which version ? What version of infiniband-diags are you using ? 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 ?
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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