[elrepo] Support for older Mellanox network cards in RHEL 8.

[Jeremy Reben]

Thank you so much for the work, that seems to do it.
I have the speed I am expecting and it works.

You guys have saved another perfectly good piece of hardware from the junk
pile.

On Fri, Apr 17, 2020 at 2:23 PM Phil Perry <phil at elrepo.org> wrote:

> On 17/04/2020 18:18, Phil Perry wrote:
> > On 17/04/2020 00:33, Jeremy Reben wrote:
> >> It appears that didn't work. I don't suppose there is a GEN1 option is
> >> there?
> >> That device still doesn't show a kernel device driver after rebooting.
> >> lsmod shows the elrepo mlx drivers, but nothing loaded, no dmesg, no
> >> nothing.
> >> Is that driver supporting those device ids?
> >> Did I need to do something else to enable it loading beyond dnf install?
> >>
> >>
> >
> > Hi Jeremy,
> >
> > Thanks for the feedback. Obviously something more is required. Let me
> > have a more in depth look at what Red Hat did to disable your device and
> > I'll have another go for you. I'll post back here when I have another
> > version for you to test.
> >
> > Regards,
> >
> > Phil
> >
>
> Fixed version uploaded to testing repository for you to try:
>
> kmod-mlx4-4.0-2.el8_1.elrepo.x86_64.rpm
>
> Should be available on the mirror sites shortly.
>
> For some reason I've not yet fathomed out, the definition of
> MLX4_CORE_GEN2 in the Makefile did not/is not working, so for now I've
> just commented out the #ifdef statement in the source code.
>
> I've performed a quick test install, and modinfo now lists your pci_id
> so we should be good to go:
>
>
> $ modinfo mlx4_core
> filename:
> /lib/modules/4.18.0-147.8.1.el8_1.x86_64/weak-updates/mlx4/mlx4_core.ko
> version:        4.0-0
> license:        Dual BSD/GPL
> description:    Mellanox ConnectX HCA low-level driver
> author:         Roland Dreier
> rhelversion:    8.1
> srcversion:     7C614DAF883104426BEE53E
> alias:          pci:v000015B3d00001010sv*sd*bc*sc*i*
> alias:          pci:v000015B3d0000100Fsv*sd*bc*sc*i*
> alias:          pci:v000015B3d0000100Esv*sd*bc*sc*i*
> alias:          pci:v000015B3d0000100Dsv*sd*bc*sc*i*
> alias:          pci:v000015B3d0000100Csv*sd*bc*sc*i*
> alias:          pci:v000015B3d0000100Bsv*sd*bc*sc*i*
> alias:          pci:v000015B3d0000100Asv*sd*bc*sc*i*
> alias:          pci:v000015B3d00001009sv*sd*bc*sc*i*
> alias:          pci:v000015B3d00001008sv*sd*bc*sc*i*
> alias:          pci:v000015B3d00001007sv*sd*bc*sc*i*
> alias:          pci:v000015B3d00001006sv*sd*bc*sc*i*
> alias:          pci:v000015B3d00001005sv*sd*bc*sc*i*
> alias:          pci:v000015B3d00001004sv*sd*bc*sc*i*
> alias:          pci:v000015B3d00001003sv*sd*bc*sc*i*
> alias:          pci:v000015B3d00001002sv*sd*bc*sc*i*
> alias:          pci:v000015B3d0000676Esv*sd*bc*sc*i*
> alias:          pci:v000015B3d00006746sv*sd*bc*sc*i*
> alias:          pci:v000015B3d00006764sv*sd*bc*sc*i*
> alias:          pci:v000015B3d0000675Asv*sd*bc*sc*i*
> alias:          pci:v000015B3d00006372sv*sd*bc*sc*i*
> alias:          pci:v000015B3d00006750sv*sd*bc*sc*i*
> alias:          pci:v000015B3d00006368sv*sd*bc*sc*i*
> alias:          pci:v000015B3d0000673Csv*sd*bc*sc*i*
> alias:          pci:v000015B3d00006732sv*sd*bc*sc*i*
> alias:          pci:v000015B3d00006354sv*sd*bc*sc*i*
> alias:          pci:v000015B3d0000634Asv*sd*bc*sc*i*
> alias:          pci:v000015B3d00006340sv*sd*bc*sc*i*
>
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