From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Hemminger Subject: Re: [PATCH] igb_uio: MSI IRQ mode, irq enable/disable refactored Date: Tue, 22 Aug 2017 09:55:53 -0700 Message-ID: <20170822095553.418ed188@xeon-e3> References: <1503336825-7700-1-git-send-email-markus.theil@tu-ilmenau.de> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: ferruh.yigit@intel.com, dev@dpdk.org To: Markus Theil Return-path: Received: from mail-pf0-f175.google.com (mail-pf0-f175.google.com [209.85.192.175]) by dpdk.org (Postfix) with ESMTP id AACDB7CF8 for ; Tue, 22 Aug 2017 18:56:01 +0200 (CEST) Received: by mail-pf0-f175.google.com with SMTP id h75so11802028pfh.1 for ; Tue, 22 Aug 2017 09:56:01 -0700 (PDT) In-Reply-To: <1503336825-7700-1-git-send-email-markus.theil@tu-ilmenau.de> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" On Mon, 21 Aug 2017 19:33:45 +0200 Markus Theil 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 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.