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[204.195.120.218]) by smtp.gmail.com with ESMTPSA id l17-20020a170902f69100b0016a091eb88esm15112279plg.126.2022.08.11.07.56.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Aug 2022 07:56:25 -0700 (PDT) Date: Thu, 11 Aug 2022 07:56:23 -0700 From: Stephen Hemminger <stephen@networkplumber.org> To: sysman@scaled.cloud Cc: users@dpdk.org Subject: Re: Error: bind failed for 0000:02:04.0 - Cannot bind to driver uio_pci_generic: [Errno 19] No such device Message-ID: <20220811075623.3db13703@hermes.local> In-Reply-To: <7c0b92cb55fdd3b4a46973e2b5bc5fca@scaled.cloud> References: <99e01fff837b85c1126ef0a235078fc3@scaled.cloud> <e64724fd9af59c9c4967284e8570f0eb@scaled.cloud> <20220810065525.204e1901@hermes.local> <b28d640b7dd28048e44e4a2aadb2f213@scaled.cloud> <20220810071938.2882f3dd@hermes.local> <7c0b92cb55fdd3b4a46973e2b5bc5fca@scaled.cloud> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-BeenThere: users@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK usage discussions <users.dpdk.org> List-Unsubscribe: <https://mails.dpdk.org/options/users>, <mailto:users-request@dpdk.org?subject=unsubscribe> List-Archive: <http://mails.dpdk.org/archives/users/> List-Post: <mailto:users@dpdk.org> List-Help: <mailto:users-request@dpdk.org?subject=help> List-Subscribe: <https://mails.dpdk.org/listinfo/users>, <mailto:users-request@dpdk.org?subject=subscribe> Errors-To: users-bounces@dpdk.org On Thu, 11 Aug 2022 12:00:22 +0300 sysman@scaled.cloud wrote: > Hello! > > I tried to use uio_pci_generic instead of VFIO : > > root@devuan4-sysman:~# lsmod | grep uio > uio_pci_generic 16384 0 > igb_uio 20480 0 > uio 20480 2 igb_uio,uio_pci_generic > root@devuan4-sysman:~# > > > root@devuan4-sysman:~# dpdk-devbind.py -s > > Network devices using DPDK-compatible driver > ============================================ > 0000:02:05.0 '82545EM Gigabit Ethernet Controller (Copper) 100f' > drv=igb_uio unused=e1000,vfio-pci,uio_pci_generic > 0000:02:06.0 '82545EM Gigabit Ethernet Controller (Copper) 100f' > drv=igb_uio unused=e1000,vfio-pci,uio_pci_generic > 0000:02:07.0 '82545EM Gigabit Ethernet Controller (Copper) 100f' > drv=igb_uio unused=e1000,vfio-pci,uio_pci_generic > > Other Network devices > ===================== > 0000:02:04.0 '82545EM Gigabit Ethernet Controller (Copper) 100f' > unused=e1000,igb_uio,vfio-pci,uio_pci_generic > > > root@devuan4-sysman:~# dpdk-devbind.py -b uio_pci_generic 0000:02:04.0 > Error: bind failed for 0000:02:04.0 - Cannot bind to driver > uio_pci_generic: [Errno 19] No such device > > > Please, help me to resolve this problem. Check kernel dmesg log, there maybe a better message waiting there. Note: igb_uio and uio_pci_generic may not be compatiable with each other. Since this looks like a 4 port NIC card, you may have issues. Internally the for card has a PCI bridge. Looking at PCI topology with lspci may give some insight.