Add support for igb_uio kernel module

Currently, the forward error correction (FEC) device on an
Intel N3000 FPGA card requires the use of the igb_uio driver
for use with DPDK applications.

This commit adds support for the igb_uio module by building
DPDK 20.05 and extracting the enabled driver into the kernel
modules.

In addition, DPDK's devbind script is installed in the system
at /usr/share/starlingx/scripts/dpdk-devbind.py to assist
in binding the driver to a device. It is not possible to
use the existing (older) version of this script shipped with
openvswitch as it does not support acceleration devices such
as the FEC.

Story: 2006740
Task: 39946
Change-Id: I838a6dacaaa79fcbce22884f42aa141435964b1d
Signed-off-by: Steven Webster <steven.webster@windriver.com>

centos_iso_image.inc

@@ -34,6 +34,10 @@ kmod-ixgbevf-rt
 kmod-ixgbe
 kmod-ixgbe-rt
 
+# igb_uio-kmod
+kmod-igb_uio
+kmod-igb_uio-rt
+
 # drbd-kernel
 kmod-drbd
 kmod-drbd-rt

centos_pkg_dirs

@@ -4,6 +4,7 @@ kernel-modules/intel-iavf
 kernel-modules/intel-i40e
 kernel-modules/intel-ixgbevf
 kernel-modules/intel-ixgbe
+kernel-modules/intel-igb_uio
 kernel-modules/qat17
 kernel-modules/drbd
 kernel-modules/intel-opae-fpga

centos_pkg_dirs_rt

@@ -5,6 +5,7 @@ kernel-modules/intel-iavf
 kernel-modules/intel-i40e
 kernel-modules/intel-ixgbevf
 kernel-modules/intel-ixgbe
+kernel-modules/intel-igb_uio
 kernel-modules/qat17
 kernel-modules/drbd
 kernel-modules/intel-opae-fpga

centos_tarball-dl.lst

@@ -4,6 +4,7 @@ i40e-2.10.19.82.tar.gz#i40e-2.10.19.82#https://sourceforge.net/projects/e1000/fi
 iavf-3.7.61.20.tar.gz#iavf-3.7.61.20#https://sourceforge.net/projects/e1000/files/iavf%20stable/3.7.61.20/iavf-3.7.61.20.tar.gz/download#http##
 ixgbe-5.6.5.tar.gz#ixgbe-5.6.5#https://sourceforge.net/projects/e1000/files/ixgbe%20stable/5.6.5/ixgbe-5.6.5.tar.gz/download#http##
 ixgbevf-4.6.3.tar.gz#ixgbevf-4.6.3#https://sourceforge.net/projects/e1000/files/ixgbevf%20stable/4.6.3/ixgbevf-4.6.3.tar.gz/download#http##
+dpdk-20.05.tar.gz#dpdk-20.05#https://fast.dpdk.org/rel/dpdk-20.05.tar.gz#http##
 opae-intel-fpga-driver-2.0.1.tar.gz#opae-intel-fpga-driver-2.0.1#https://github.com/OPAE/opae-sdk/releases/download/1.3.6-4/opae-intel-fpga-driver-2.0.1.tar.gz#http##
 !qat1.7.l.4.5.0-00034.tar.gz#quickassist#https://01.org/sites/default/files/downloads/qat1.7.l.4.5.0-00034.tar.gz#http_script##post-dl-script/qat1.7.sh
 !kernel-rt-4.18.0-147.3.1.rt24.96.el8_1.src.rpm#kernel-rt#https://git.centos.org/rpms/kernel-rt#http_script#327ec52423c67051249291f131ec7f6fff44a828#post-dl-script/kernel-rt.sh

kernel-modules/intel-igb_uio/centos/build_srpm.data

@@ -0,0 +1,4 @@
+COPY_LIST=" \
+  $PKG_BASE/files/* \
+  $STX_BASE/downloads/dpdk-20.05.tar.gz"
+TIS_PATCH_VER=1

kernel-modules/intel-igb_uio/centos/igb_uio-kmod.spec

@@ -0,0 +1,145 @@
+%if "%{?_tis_build_type}" == "rt"
+%define bt_ext -rt
+%else
+%undefine bt_ext
+%endif
+
+# Define the kmod package name here.
+%define kmod_name igb_uio
+
+Name:    %{kmod_name}-kmod%{?bt_ext}
+Version: 20.05
+Release: 0%{?_tis_dist}.%{tis_patch_ver}
+Group:   System Environment/Kernel
+License: GPLv2
+Summary: %{kmod_name} kernel module(s)
+URL:     http://www.intel.com/
+
+BuildRequires: kernel%{?bt_ext}-devel, redhat-rpm-config, perl, openssl
+BuildRequires: elfutils-libelf-devel
+BuildRequires: gcc
+BuildRequires: glibc-headers
+BuildRequires: numactl-devel
+BuildRequires: libmnl-devel
+ExclusiveArch: x86_64
+
+# Get the kernel headers version installed, not based on uname.
+%define KERNEL_VERSION %(rpm -q kernel%{?bt_ext}-devel | sort --version-sort | tail -1 | sed 's/kernel%{?bt_ext}-devel-//')
+%define DPDK_TARGET_MACHINE default
+%define STAGING_KERNEL_DIR /usr/src/kernels/%{KERNEL_VERSION}/
+%define DPDK_EXTRA_CFLAGS "-fPIC -g -msse4.2"
+%define DPDK_TARGET x86_64-native-linuxapp-gcc
+
+%define EXTRA_OEMAKE prefix= \\\
+TARGET_LDFLAGS= \\\
+TARGET_CFLAGS= \\\
+RTE_KERNELDIR=%{STAGING_KERNEL_DIR} \\\
+EXTRA_CFLAGS=%{DPDK_EXTRA_CFLAGS} \\\
+RTE_TARGET=%{DPDK_TARGET} \\\
+GCC_MAJOR_VERSION="%(gcc -dumpversion | cut -f1 -d.)" \\\
+GCC_MINOR_VERSION="%(gcc -dumpversion | cut -f2 -d.)"
+
+# Sources.
+Source0:  dpdk-%{version}.tar.gz
+
+%define kversion %(rpm -q kernel%{?bt_ext}-devel | sort --version-sort | tail -1 | sed 's/kernel%{?bt_ext}-devel-//')
+
+%package       -n kmod-igb_uio%{?bt_ext}
+Summary:          igb_uio kernel module(s)
+Group:            System Environment/Kernel
+%global _use_internal_dependency_generator 0
+Provides:         kernel-modules >= %{kversion}
+Provides:         igb_uio-kmod = %{?epoch:%{epoch}:}%{version}-%{release}
+Requires(post):   /usr/sbin/depmod
+Requires(postun): /usr/sbin/depmod
+
+%description   -n kmod-igb_uio%{?bt_ext}
+This package provides the igb_uio kernel module(s) built
+for the Linux kernel using the %{_target_cpu} family of processors.
+
+%post          -n kmod-igb_uio%{?bt_ext}
+echo "Working. This may take some time ..."
+if [ -e "/boot/System.map-%{kversion}" ]; then
+    /usr/sbin/depmod -aeF "/boot/System.map-%{kversion}" "%{kversion}" > /dev/null || :
+fi
+modules=( $(find /lib/modules/%{kversion}/extra/igb_uio | grep '\.ko$') )
+if [ -x "/sbin/weak-modules" ]; then
+    printf '%s\n' "${modules[@]}" | /sbin/weak-modules --add-modules
+fi
+echo "Done."
+
+%preun         -n kmod-igb_uio%{?bt_ext}
+rpm -ql kmod-igb_uio%{?bt_ext}-%{version}-%{release}.x86_64 | grep '\.ko$' > /var/run/rpm-kmod-igb_uio%{?bt_ext}-modules
+
+%postun        -n kmod-igb_uio%{?bt_ext}
+echo "Working. This may take some time ..."
+if [ -e "/boot/System.map-%{kversion}" ]; then
+    /usr/sbin/depmod -aeF "/boot/System.map-%{kversion}" "%{kversion}" > /dev/null || :
+fi
+modules=( $(cat /var/run/rpm-kmod-igb_uio%{?bt_ext}-modules) )
+rm /var/run/rpm-kmod-igb_uio%{?bt_ext}-modules
+if [ -x "/sbin/weak-modules" ]; then
+    printf '%s\n' "${modules[@]}" | /sbin/weak-modules --remove-modules
+fi
+echo "Done."
+
+%files         -n kmod-igb_uio%{?bt_ext}
+%defattr(644,root,root,755)
+/lib/modules/%{kversion}/
+%config(noreplace)/etc/depmod.d/kmod-igb_uio.conf
+%doc /usr/share/doc/kmod-igb_uio-%{version}/
+%defattr(755,root,root,755)
+%{_datadir}/starlingx/scripts/dpdk-devbind.py
+%exclude %{_datadir}/starlingx/scripts/*.py[oc]
+
+# Disable the building of the debug package(s).
+%define debug_package %{nil}
+
+%description
+This package provides the %{kmod_name} kernel module(s).
+It is built to depend upon the specific ABI provided by a range of releases
+of the same variant of the Linux kernel and not on any one specific build.
+
+%prep
+%autosetup -p 1 -n dpdk-%{version}
+echo "override %{kmod_name} * weak-updates/%{kmod_name}" > kmod-%{kmod_name}.conf
+
+%build
+make T=%{DPDK_TARGET} config
+
+# This line changes default compiler flags from native to proper value
+sed -i 's/"native"/"%{DPDK_TARGET_MACHINE}"/' build/.config
+sed -i 's/CONFIG_RTE_EAL_IGB_UIO=n/CONFIG_RTE_EAL_IGB_UIO=y/' build/.config
+
+make %{?_smp_mflags} %{EXTRA_OEMAKE}
+ls build/kmod/
+
+%install
+find . -name *.ko
+%{__install} -d %{buildroot}/lib/modules/%{kversion}/extra/%{kmod_name}/
+%{__install} build/kmod/%{kmod_name}.ko %{buildroot}/lib/modules/%{kversion}/extra/%{kmod_name}/
+%{__install} -d %{buildroot}%{_sysconfdir}/depmod.d/
+%{__install} kmod-%{kmod_name}.conf %{buildroot}%{_sysconfdir}/depmod.d/
+%{__install} -d %{buildroot}%{_defaultdocdir}/kmod-%{kmod_name}-%{version}/
+%{__install} license/gpl-2.0.txt %{buildroot}%{_defaultdocdir}/kmod-%{kmod_name}-%{version}/
+%{__install} -d %{buildroot}%{_datadir}/starlingx/scripts
+%{__install} -m755 usertools/dpdk-devbind.py %{buildroot}%{_datadir}/starlingx/scripts/dpdk-devbind.py
+
+# Strip the modules(s).
+find %{buildroot} -type f -name \*.ko -exec %{__strip} --strip-debug \{\} \;
+
+# Always Sign the modules(s).
+# If the module signing keys are not defined, define them here.
+%{!?privkey: %define privkey /usr/src/kernels/%{kversion}/signing_key.pem}
+%{!?pubkey: %define pubkey /usr/src/kernels/%{kversion}/signing_key.x509}
+for module in $(find %{buildroot} -type f -name \*.ko);
+do /usr/src/kernels/%{kversion}/scripts/sign-file \
+    sha256 %{privkey} %{pubkey} $module;
+done
+
+%clean
+%{__rm} -rf %{buildroot}
+
+%changelog
+* Wed Jun 03 2020 Steven Webster <steven.webster@windriver.com> - 20.05-1
+- Initial RPM package, based on Starlingx iavf-kmod.

kernel-modules/intel-igb_uio/files/modules-load.conf

@@ -0,0 +1 @@
+igb-uio