From mboxrd@z Thu Jan 1 00:00:00 1970 From: Adrien Mazarguil Subject: Re: Testpmd with Mellanox ConnectX-3 Date: Thu, 2 Apr 2015 14:24:05 +0200 Message-ID: <20150402122405.GV32147@6wind.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: dev-VfR2kkLFssw@public.gmane.org To: Raghav Sethi Return-path: Content-Disposition: inline In-Reply-To: List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces-VfR2kkLFssw@public.gmane.org Sender: "dev" Hi, On Wed, Apr 01, 2015 at 08:18:30PM +0000, Raghav Sethi wrote: > Hi folks, > > Hopefully this is the right place to ask questions. I'm trying to run > testpmd (and then develop my own applications) with DPDK 1.8 and the > Mellanox ConnectX-3. The setup script/quickstart/Getting Started guide > don't have too much information about what to do if you have a > Mellanox. I've installed libibverbs and libmlx4 system-wide. This is the > closest I found to a guide for the Mellanox: > https://dpdk.readthedocs.org/en/stable/prog_guide/mlx4_poll_mode_drv.html . > When I run testpmd as described by this article, I get "Cause: No probed > ethernet device". First, the ConnectX-3 (mlx4) driver is not included in DPDK 1.8, the documentation you refer to is from a DPDK 2.0 release candidate. DPDK 2.0 will support it. > Here are my questions: > 1. Is this how I should set the PMD flag for DPDK? "make install T= > CONFIG_RTE_LIBRTE_MLX4_PMD=y" No, see below. > 2. If not, how should I do it? You should either create a specific configuration file in configs/ with that option and use make config T=, or update your .config file after you've run make config T=. > 3. Does using the Mellanox mean that I shouldn't use igb_uio at all? Indeed. Loading it is harmless though. > 4. Do I need to bind the Mellanox to mlx4_core before using testpmd? The kernel module (mlx4_core) must remain bound to its devices, the PMD relies on it. > I would be happy to contribute to the help page with end-to-end > instructions for using the Mellanox with testpmd. I've just submitted a patch to provide more details about the installation process, you should have a look. -- Adrien Mazarguil 6WIND