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Solarflare Server Adapter User Guide
Solarflare Adapters on Linux
Issue 20 © Solarflare Communications 2017 65
3.7 Installing DKMS Driver and Utilities on Ubuntu/Debian
Servers
Solarflare recommend that the DKMS driver package is installed on the Ubuntu
server and NOT the source RPM package. Onload users only need to install the
Onload distribution which includes the adapter driver.
Remove ‘in ‐ tree’ Driver
The ‘in ‐ tree’ driver is the Solarflare driver included in the OS distribution.
If the OS ‘in ‐ tree’ driver is installed on the system. This can be removed before
installing a newer DKMS driver.
1 To identify if the ‘in ‐ tree’ driver is being used:
# ethtool ‐ i <solarflare interface>
driver: sfc
version: 4.0 (this might also be the 4.1 driver)
2 To remove the ‘in ‐ tree’ driver and rebuild the initramfs ‐ so that the ‘in ‐ tree’
driver does not automatically reload following reboot:
# find /lib/modules/$(uname ‐ r) ‐ name 'sfc*.ko' | xargs rm –rf
# rmmod sfc
# update ‐ initramfs ‐ u ‐ k $(uname ‐ r)
Net Driver DKMS
NOTE: dkms must be installed on the server. To check, run the following command:
# dkms ‐ version
The Solarflare net driver DKMS package (SF ‐ 104979 ‐ LS) is available from:
https://support.solarflare.com/
1 Download the DKMS source package SF ‐ 104979 ‐ LS and unzip on the target
server.
2 Create the .deb file:
sudo alien ‐ c sfc ‐ dkms ‐ <version>.sf.1.noarch.rpm
This command generates the sfc ‐ dkms_<version>_all.deb file.
The ‐ c option is required to convert source scripts and build the driver.
3 Install the deb file:
sudo dpkg –i ‐ dkms_<version>_all.deb
4 Reload the sfc driver:
modprobe –r sfc

modprobe sfc