ConnectX EN  4 Gbit/s limit problem

Infrastructure & Networking Adapters and Cables Ethernet Adapter Cards
1

Hello! There is problem with latest 3.1-1 and 3.2-1 drivers for ConnectX EN NIC.

After rebooting system speed limiting near 4 Gbit/s and no limit after executing ./install.sh

uname -a

Linux host-2 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt25-1 (2016-03-06) x86_64 GNU/Linux

Device #1:

Device Type: ConnectX

Part Number: MNPH29B-XTC_A1-A2

Description: MELLANOX HAWK2 2-PORT MODULE-LESS 10GBASE R5 KIT W/TALL BRACKET

PSID: MT_0BD0110010

PCI Device Name: 06:00.0

Port1 MAC: 0002c90444dc

Port2 MAC: 0002c90444dd

Versions: Current Available

FW 2.9.1000 2.9.1000

Status: Up to date

Who is to blame and what to do?

https://i.gyazo.com/65b636f63ab3ad343a4337d0fe56ce91.png

2

Hello,

Looking at the Mellanox OFED 3.2 release notes, it is mentioned in the compatibility matrix that the ConnectX-EN cards is not tested against this driver build. As this is an older generation card I would advise to use a previous driver stack which was verified and tested against your HCA.