Intel PRO/1000 PCIe Network Driver in kernel source tree hasn’t been touched for quite some time, it’s been
2.3.2-k from 3.10 all the way up to 4.1.
Not until Linux 4.2 was it bumped up to
I didn’t realized the change until after installing
linux-image-generic-lts-wily HWE kernel (based on 4.2) on my Linux Workstation (running Ubuntu 14.04 LTS with ksplice - up and running for 127 days…).
After rebooting, as usual I checked for new
e1000e versions and found new 22.214.171.124 VS 126.96.36.199. No waste of time, downloaded the source and built a new kernel module.
While building, I checked
modinfo e1000e and was surprised to find that the kernel built-in driver version has been bumped up to
3.2.5-k, even newer than the previously used
I had a look at the Linux 4.3 source code, finding that
e1000e driver version was again bumped up to version 3.2.6-k.
Well, still falling behind the latest e1000e stable release on SourceForge.
One interesting fact found when browsing through the source code, kernel built-in driver has a
-k suffix defined as
DRV_EXTRAVERSION. I reckon it’s just to distinguish kernel built-in driver from self-compiled kernel modules (or 3rd party driver update packages).
#include "e1000.h" #define DRV_EXTRAVERSION "-k" #define DRV_VERSION "3.2.6" DRV_EXTRAVERSION char e1000e_driver_name = "e1000e"; const char e1000e_driver_version = DRV_VERSION;
Build and load e1000e on a running system
It’s pretty straightforward: Download the source tarball, extract it, change directory to src/ and run make install, remove current loaded e1000e module, reload the newly built module, assign the interface IP(s), done. Just bear in mind that the statistics will be reset, I don’t care ;-D
tar axvf e1000e-<ver>.tar.gz cd e1000e-<ver>/src && make install rmmod e1000e modprobe e1000e # or modprobe followed by the full path of the newly built e1000e kernel module modprobe /lib/modules/$(uname -r)/kernel/drivers/net/ethernet/intel/e1000e/e1000e.ko
NOTE: On Ubuntu you’ll need the toolchain (
build-essentialand probably more, figure it out yourself) and kernel header for the running kernel.
BTW: e1000e 3.3.1 was released on the day after I wrote this article, damn, build again!