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From: Kiran Shinde <Kiran.Shinde@enea.com>
To: "users@dpdk.org" <users@dpdk.org>
Subject: [dpdk-users] Upgrading the Mellanox drivers to v 4.4.3 removes infiniband devices
Date: Tue, 2 Feb 2021 05:25:59 +0000
Message-ID: <DB7PR03MB42518E9D877D7C89473D9BB9F6B59@DB7PR03MB4251.eurprd03.prod.outlook.com> (raw)

Background:
RHEL version: Red Hat Enterprise Linux Server release 7.5 (Maipo)
DPDK version: 17.11.4
Current Mellanox driver version: 4.0.2
lspci | grep Mell
00:06.0 Ethernet controller: Mellanox Technologies MT27500/MT27520 Family [ConnectX-3/ConnectX-3 Pro Virtual Function]
00:07.0 Ethernet controller: Mellanox Technologies MT27500/MT27520 Family [ConnectX-3/ConnectX-3 Pro Virtual Function]
00:08.0 Ethernet controller: Mellanox Technologies MT27500/MT27520 Family [ConnectX-3/ConnectX-3 Pro Virtual Function]
00:09.0 Ethernet controller: Mellanox Technologies MT27500/MT27520 Family [ConnectX-3/ConnectX-3 Pro Virtual Function]


We have a system with above configuration running, we have below infiniband devices in place before upgrade.
ls -lrt /sys/class/infiniband/
total 0
lrwxrwxrwx 1 root root 0 Jan 29 13:06 mlx4_3 -> ../../devices/pci0000:00/0000:00:09.0/infiniband/mlx4_3
lrwxrwxrwx 1 root root 0 Jan 29 13:06 mlx4_2 -> ../../devices/pci0000:00/0000:00:08.0/infiniband/mlx4_2
lrwxrwxrwx 1 root root 0 Jan 29 13:06 mlx4_1 -> ../../devices/pci0000:00/0000:00:07.0/infiniband/mlx4_1
lrwxrwxrwx 1 root root 0 Jan 29 13:06 mlx4_0 -> ../../devices/pci0000:00/0000:00:06.0/infiniband/mlx4_0

When we upgrade Mellanox driver to mlnx-en-4.4-2.0.7.0 and restart the /etc/init.d/mlnx-en.d, we see all above devices get removed and hence ibv_get_device_list function is not able to find any device.
Please note we have used image mlnx-en-4.4-2.0.7.0-rhel7.5-x86_64.iso to upgrade the drivers.

Has anyone faced this type of problems earlier, are there any explicit steps we need to perform to make sure the infiniband devices are not removed during upgrade of Mellanox drivers?

Regards,
Kiran

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             reply	other threads:[~2021-02-07  9:39 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-02  5:25 Kiran Shinde [this message]
2021-02-07 12:23 ` Raslan Darawsheh

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