On Tue, Aug 22, 2017 at 09:55:53AM -0700, Stephen Hemminger wrote: > On Mon, 21 Aug 2017 19:33:45 +0200 > Markus Theil <markus.th...@tu-ilmenau.de> wrote: > > > This patch adds MSI IRQ mode and in a way, that should > > also work on older kernel versions. The base for my patch > > was an attempt to do this in cf705bc36c which was later reverted in > > d8ee82745a. Compilation was tested on Linux 3.2, 4.10 and 4.12. > > > > MSI(X) setup was already using pci_alloc_irq_vectors before, > > but calls to pci_free_irq_vectors were missing and added. > > > > Signed-off-by: Markus Theil <markus.th...@tu-ilmenau.de> > > I wonder if DPDK should only N-1 Long Term Stable kernel.org kernels? > That would mean 4.4.83 or later now, and 4.9 or later starting with 18.XX > releases. > > If enterprise distro's want to backport more, that is their prerogative but > upstream > DPDK shouldn't have to worry about it. The current mess with KNI especially > is out > of hand.
I agree in principal about limiting ourselves to only supporting a more limited set of kernel versions in mainline. However, the exact number of versions probably needs some discussion - my initial impression is that what you propose is a little too limited.
