From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Hemminger Subject: Re: [PATCH v3] drivers: advertise kmod dependencies in pmdinfo Date: Thu, 15 Dec 2016 09:22:07 -0800 Message-ID: <20161215092207.168ba141@xeon-e3> References: <1479808257-8725-1-git-send-email-olivier.matz@6wind.com> <1481809599-27896-1-git-send-email-olivier.matz@6wind.com> <20161215160912.GA4450@neilslaptop.think-freely.org> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: Olivier Matz , dev@dpdk.org, thomas.monjalon@6wind.com, vido@cesnet.cz, fiona.trahe@intel.com, adrien.mazarguil@6wind.com To: Neil Horman Return-path: Received: from mail-pg0-f44.google.com (mail-pg0-f44.google.com [74.125.83.44]) by dpdk.org (Postfix) with ESMTP id AFD534CC5 for ; Thu, 15 Dec 2016 18:22:15 +0100 (CET) Received: by mail-pg0-f44.google.com with SMTP id p66so22027566pga.2 for ; Thu, 15 Dec 2016 09:22:15 -0800 (PST) In-Reply-To: <20161215160912.GA4450@neilslaptop.think-freely.org> 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 Thu, 15 Dec 2016 11:09:12 -0500 Neil Horman wrote: > On Thu, Dec 15, 2016 at 02:46:39PM +0100, Olivier Matz wrote: > > Add a new macro RTE_PMD_REGISTER_KMOD_DEP() that allows a driver to > > declare the list of kernel modules required to run properly. > > > > Today, most PCI drivers require uio/vfio. > > > > Signed-off-by: Olivier Matz > > Acked-by: Fiona Trahe > > --- > > > > v2 -> v3: > > - fix kmods deps advertised by mellanox drivers as pointed out > > by Adrien > > > > v1 -> v2: > > - do not advertise uio_pci_generic for vf drivers > > - rebase on top of head: use new driver names and prefix > > macro with RTE_ > > > > rfc -> v1: > > - the kmod information can be per-device using a modalias-like > > pattern > > - change syntax to use '&' and '|' instead of ',' and ':' > > - remove useless prerequisites in kmod lis: no need to > > specify both uio and uio_pci_generic, only the latter is > > required > > - update kmod list in szedata2 driver > > - remove kmod list in qat driver: it requires more than just loading > > a kmod, which is described in documentation > > > > buildtools/pmdinfogen/pmdinfogen.c | 1 + > > buildtools/pmdinfogen/pmdinfogen.h | 1 + > > drivers/net/bnx2x/bnx2x_ethdev.c | 2 ++ > > drivers/net/bnxt/bnxt_ethdev.c | 1 + > > drivers/net/cxgbe/cxgbe_ethdev.c | 1 + > > drivers/net/e1000/em_ethdev.c | 1 + > > drivers/net/e1000/igb_ethdev.c | 2 ++ > > drivers/net/ena/ena_ethdev.c | 1 + > > drivers/net/enic/enic_ethdev.c | 1 + > > drivers/net/fm10k/fm10k_ethdev.c | 1 + > > drivers/net/i40e/i40e_ethdev.c | 1 + > > drivers/net/i40e/i40e_ethdev_vf.c | 1 + > > drivers/net/ixgbe/ixgbe_ethdev.c | 2 ++ > > drivers/net/mlx4/mlx4.c | 2 ++ > > drivers/net/mlx5/mlx5.c | 1 + > > drivers/net/nfp/nfp_net.c | 1 + > > drivers/net/qede/qede_ethdev.c | 2 ++ > > drivers/net/szedata2/rte_eth_szedata2.c | 2 ++ > > drivers/net/thunderx/nicvf_ethdev.c | 1 + > > drivers/net/virtio/virtio_ethdev.c | 1 + > > drivers/net/vmxnet3/vmxnet3_ethdev.c | 1 + > > lib/librte_eal/common/include/rte_dev.h | 25 +++++++++++++++++++++++++ > > tools/dpdk-pmdinfo.py | 5 ++++- > > 23 files changed, 56 insertions(+), 1 deletion(-) > > > Its odd that all devices, regardless of vendor should depend on the igb_uio > module. It seems to me that depending on uio_pci_generic or vfio is sufficient. > > Neil > Yes it seems just a special case extension for Mellanox drivers.