Amazon Elastic Network Adapter (ENA) on CentOS 6

gistfile1.txt

yum -y install patch dkms kernel-devel

wget https://github.com/amzn/amzn-drivers/archive/ena_linux_1.1.3.tar.gz
tar zxvf ena_linux_1.1.3.tar.gz -C /usr/src/
mv /usr/src/amzn-drivers-ena_linux_1.1.3 /usr/src/ena-1.1.3

cat <<EOF > /usr/src/ena-1.1.3/dkms.conf
PACKAGE_NAME="ena"
PACKAGE_VERSION="1.1.3"
AUTOINSTALL="yes"
REMAKE_INITRD="yes"
BUILT_MODULE_LOCATION[0]="kernel/linux/ena"
BUILT_MODULE_NAME[0]="ena"
DEST_MODULE_LOCATION[0]="/updates"
DEST_MODULE_NAME[0]="ena"
CLEAN="cd kernel/linux/ena; make clean"
MAKE="cd kernel/linux/ena; make BUILD_KERNEL=\${kernelver}"
EOF

dkms add -m ena -v 1.1.3
dkms build -m ena -v 1.1.3
dkms install -m ena -v 1.1.3

dracut -f --add-drivers ena

[root@testing-db004 /usr/src]# modinfo ena
filename:       /lib/modules/2.6.32-642.15.1.el6.x86_64/extra/ena.ko
version:        1.1.3
license:        GPL
description:    Elastic Network Adapter (ENA)
author:         Amazon.com, Inc. or its affiliates
srcversion:     95D68BE3C0E363A5CDA8E13
alias:          pci:v00001D0Fd0000EC21sv*sd*bc*sc*i*
alias:          pci:v00001D0Fd0000EC20sv*sd*bc*sc*i*
alias:          pci:v00001D0Fd00001EC2sv*sd*bc*sc*i*
alias:          pci:v00001D0Fd00000EC2sv*sd*bc*sc*i*
depends:
vermagic:       2.6.32-642.15.1.el6.x86_64 SMP mod_unload modversions
parm:           debug:Debug level (0=none,...,16=all) (int)

Don't forget to

yum --enablerepo=extras install epel-release

Make sure you reboot if your kernel version is updated (which it probably will be due to installing kernel-devel and yum update).
See here for updated gist.
See below for issue that rebooting fixed:

Build not working.

[root@ip-172-31-11-124 tmp]# dkms add -m ena -v 1.1.3

Creating symlink /var/lib/dkms/ena/1.1.3/source ->
                 /usr/src/ena-1.1.3

DKMS: add completed.
[root@ip-172-31-11-124 tmp]# dkms build -m ena -v 1.1.3
Error! echo
Your kernel headers for kernel 2.6.32-696.18.7.el6.x86_64 cannot be found at
/lib/modules/2.6.32-696.18.7.el6.x86_64/build or /lib/modules/2.6.32-696.18.7.el6.x86_64/source.

[root@ip-172-31-11-124 tmp]# uname -a
Linux ip-172-31-11-124 2.6.32-696.18.7.el6.x86_64 #1 SMP Thu Jan 4 17:31:22 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

[root@ip-172-31-11-124 tmp]# ls -l /lib/modules/2.6.32-696.18.7.el6.x86_64/build 
lrwxrwxrwx. 1 root root 51 Jan  8 16:15 /lib/modules/2.6.32-696.18.7.el6.x86_64/build -> ../../../usr/src/kernels/2.6.32-696.18.7.el6.x86_64
[root@ip-172-31-11-124 tmp]# ls -l /lib/modules/2.6.32-696.18.7.el6.x86_64/source 
lrwxrwxrwx. 1 root root 5 Jan  8 16:15 /lib/modules/2.6.32-696.18.7.el6.x86_64/source -> build
[root@ip-172-31-11-124 tmp]# ls -l /usr/src/kernels/2.6.32-696.18.7.el6.x86_64
ls: cannot access /usr/src/kernels/2.6.32-696.18.7.el6.x86_64: No such file or directory
[root@ip-172-31-11-124 tmp]# ls -l /usr/src/kernels/
total 4
drwxr-xr-x. 22 root root 4096 Mar 28 13:31 2.6.32-696.23.1.el6.x86_64

Updated gist for recent OS & driver
https://gist.github.com/Ray33/ba189a729d81babc99d7cef0fb6fbcd8

Thank you everyone for keeping this Gist alive! <3

kwilczynski,

Have you tried this as a bash script in a packer build?

Hi @frank3427, I did.

I use in my Packer build, see: https://github.com/kwilczynski/packer-templates/blob/master/scripts/ec2/networking.sh