Name:           tuned-profiles-ice-pf-msix-limit
Version:        1.0
Release:        1.git.0.1fd2802%{?dist}
Summary:        TuneD profile for limiting Intel E810 PF MSI-X reservation
License:        GPL-2.0-or-later
URL:            https://github.com/redhat-performance/tuned

Source0: tuned-profiles-ice-pf-msix-limit-git-0.1fd2802.tar.gz

BuildArch:      noarch

Requires:       tuned >= 2.11
Requires:       ethtool
Requires:       iproute >= 5.0

%description
Additional TuneD profile targeted to Intel E810 (ice driver) SR-IOV
deployments.  The profile limits the Physical Function's (PF) MSI-X
vector reservation and active channel count, leaving more vectors
available for Virtual Functions (VFs).

On nodes with high CPU counts the ice driver's default algorithm
reserves an excessive number of MSI-X vectors for the PF.  This
profile corrects the imbalance via devlink driverinit parameters
and ethtool channel reduction.

The following profile is provided:

  ice-pf-msix-limit — Limit E810 PF MSI-X vector reservation for SR-IOV

%prep
%setup -q -n tuned-profiles-ice-pf-msix-limit-git-0.1fd2802

%install
# Profile directory
mkdir -p %{buildroot}%{_prefix}/lib/tuned/ice-pf-msix-limit
install -m 0644 profiles/ice-pf-msix-limit/tuned.conf \
    %{buildroot}%{_prefix}/lib/tuned/ice-pf-msix-limit/tuned.conf
install -m 0755 profiles/ice-pf-msix-limit/script.sh \
    %{buildroot}%{_prefix}/lib/tuned/ice-pf-msix-limit/script.sh

# Variables config (user-editable)
mkdir -p %{buildroot}%{_sysconfdir}/tuned
install -m 0644 ice-pf-msix-limit-variables.conf \
    %{buildroot}%{_sysconfdir}/tuned/ice-pf-msix-limit-variables.conf

# Man page
mkdir -p %{buildroot}%{_mandir}/man7
install -m 0644 man/tuned-profiles-ice-pf-msix-limit.7 \
    %{buildroot}%{_mandir}/man7/tuned-profiles-ice-pf-msix-limit.7

# Documentation
mkdir -p %{buildroot}%{_docdir}/%{name}
install -m 0644 README.md \
    %{buildroot}%{_docdir}/%{name}/README.md

%files
%config(noreplace) %{_sysconfdir}/tuned/ice-pf-msix-limit-variables.conf
%{_prefix}/lib/tuned/ice-pf-msix-limit
%{_mandir}/man7/tuned-profiles-ice-pf-msix-limit.7*
%doc README.md

%post
# If tuned is active, signal it to pick up the new profile
if systemctl is-active tuned.service &>/dev/null; then
    tuned-adm list &>/dev/null || true
fi

%postun
# On full removal, if the active profile was ours, switch to default
if [ "$1" -eq 0 ]; then
    if systemctl is-active tuned.service &>/dev/null; then
        active=$(tuned-adm active 2>/dev/null | grep -oP 'Current active profile: \K.*')
        if [ "$active" = "ice-pf-msix-limit" ]; then
            tuned-adm profile balanced &>/dev/null || true
        fi
    fi
fi

%changelog
* Fri Mar 06 2026 Carlos Goncalves <cgoncalves@redhat.com> - 1.0-1
- Initial release