Re: [PATCH net-next] qed*: Utilize FW 8.33.11.0

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On Tue, Mar 27, 2018 at 05:41:51PM +0000, Kalderon, Michal wrote:
> > From: Jason Gunthorpe [mailto:jgg@xxxxxxxx]
> > Sent: Tuesday, March 27, 2018 12:18 AM
> > > diff --git a/drivers/infiniband/hw/qedr/main.c
> > > b/drivers/infiniband/hw/qedr/main.c
> > > index db4bf97..7dbbe6d 100644
> > > +++ b/drivers/infiniband/hw/qedr/main.c
> > > @@ -51,6 +51,7 @@
> > >  MODULE_DESCRIPTION("QLogic 40G/100G ROCE Driver");
> > > MODULE_AUTHOR("QLogic Corporation");  MODULE_LICENSE("Dual
> > BSD/GPL");
> > > +MODULE_VERSION(QEDR_MODULE_VERSION);
> > >
> > >  #define QEDR_WQ_MULTIPLIER_DFT	(3)
> > >
> > > diff --git a/drivers/infiniband/hw/qedr/qedr.h
> > > b/drivers/infiniband/hw/qedr/qedr.h
> > > index 86d4511..ab0d411 100644
> > > +++ b/drivers/infiniband/hw/qedr/qedr.h
> > > @@ -43,6 +43,8 @@
> > >  #include "qedr_hsi_rdma.h"
> > >
> > >  #define QEDR_NODE_DESC "QLogic 579xx RoCE HCA"
> > > +#define QEDR_MODULE_VERSION "8.33.11.20"
> > > +
> >
> > I thought we had a general prohibition against versions like this in mainline
> > drivers? And what does this hunk have to do with supporting new firmware?
> >
> > Jason
> I'm assuming you refer only to rdma in regards to version prohibition right ? as looking at all other vendors
> (including Mellanox) all have module versions under net/ why is rdma different in this way ?
> I now searched back mails on the topic and found an email from Leon where he stated:
> " I am strongly against module versions. You should rely on official kernel version."
> But it's not always the inbox driver that is installed or probed, the kernel version is not enough.
> Given different distros, vanilla kernels, out of box drivers, etc... it is essential for  us that based on
> logs And modinfo we can determine the qed* drivers that are running.

We actually stopped to maintain driver versions, just ensure that inbox,
upstream and MLNX_OFED have different names.

The discussion thread is here
https://lists.linuxfoundation.org/pipermail/ksummit-discuss/2017-June/004426.html
https://lists.linuxfoundation.org/pipermail/ksummit-discuss/2017-June/004441.html

>
> We have received complaints that our qedr module doesn't have a version whereas all of our other
> components do (qed, qede, qedi, qedf). We decided to add the qedr version with the next version
> update to align with the rest of the components.
>
> We can move the driver version bump into a different commit for all components, just made
> sense to Add it to this one as it is the root of the version update.
> Let me know if you think it is essential and I'll make the change for v2
>
> Thanks,
> Michal

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