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

[Phil Perry]

On 16/04/2020 20:58, Grigory Shamov wrote:
> Hi All,
> 
> If I may I second the request. We also use Connectx-2 (QDR Infiniband). 
> I believe they have sam driver with the 10GE cards, mlnx4 . Thats what 
> we use:
> 
> 08:00.0 InfiniBand [0c06]: Mellanox Technologies MT25408A0-FCC-QI 
> ConnectX, Dual Port 40Gb/s InfiniBand / 10GigE Adapter IC with PCIe 2.0 
> x8 5.0GT/s In... (rev a0)
> 
> -- 
> Grigory Shamov
> WestGrid Site Lead / HPC Specialist
> University of Manitoba
> E2-588 EITC Building,
> (204) 474-9625
> 
> 
> From: <elrepo-bounces at lists.elrepo.org 
> <mailto:elrepo-bounces at lists.elrepo.org>> on behalf of Jeremy Reben 
> <jeremy.reben at gmail.com <mailto:jeremy.reben at gmail.com>>
> Reply-To: EL Repo General Mailing List <elrepo at lists.elrepo.org 
> <mailto:elrepo at lists.elrepo.org>>
> Date: Thursday, April 16, 2020 at 1:59 PM
> To: EL Repo General Mailing List <elrepo at lists.elrepo.org 
> <mailto:elrepo at lists.elrepo.org>>
> Subject: Re: [elrepo] Support for older Mellanox network cards in RHEL 8.
> 
> *Caution:* This message was sent from outside the University of Manitoba.
> 
> 
> 0d:00.0 Ethernet controller [0200]: Mellanox Technologies MT26448 
> [ConnectX EN 10GigE, PCIe 2.0 5GT/s] [15b3:6750] (rev b0)
> 

Thank you both for the request.

I have built the following package for you which I have released to the 
elrepo testing repository. Packages should be available on the mirrors 
shortly:

kmod-mlx4-4.0-1.el8_1.elrepo.src.rpm
kmod-mlx4-4.0-1.el8_1.elrepo.x86_64.rpm

https://elrepo.org/linux/testing/el8/x86_64/RPMS/

The package is built for el8.1. I have taken the source code from the 
RHEL8.1 kernel (4.18.0-147.el8) and simply rebuilt with MLX4_CORE_GEN2 
defined. From a quick examination of the source code I think this is all 
that is required.

Please can you test and let me know if the driver works for you.

Grigory - please can I have the vendor:device id from the output of 
'lspci -nn' for your device (especially if the above driver doesn't work 
for you) - thanks.

Phil