From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id D374AA0506 for ; Tue, 29 Mar 2022 10:21:44 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 19D7A428E0; Tue, 29 Mar 2022 10:21:29 +0200 (CEST) Received: from mail-lj1-f175.google.com (mail-lj1-f175.google.com [209.85.208.175]) by mails.dpdk.org (Postfix) with ESMTP id D400141104 for ; Mon, 28 Mar 2022 16:18:38 +0200 (CEST) Received: by mail-lj1-f175.google.com with SMTP id 17so19405258ljw.8 for ; Mon, 28 Mar 2022 07:18:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=message-id:date:mime-version:user-agent:content-language:to:from :subject:content-transfer-encoding; bh=jz+5UXWfMTpnGUVFYZsLhJrr7mcYPAtG7wbp68hsECY=; b=KI8D8AstPv3Jb6EQ9UYFkYJ1iFsHM4vqylu8/t3GdfZaB5NTNJR5p3BF+JdC6WeMvw AyZT8zel5/DIHQpDKnO43utH0odMYcz8a03QnV8h8Yyf4/C6UzgC9GCwytoR6ZebP9lQ mam01LlFCvQ2EpaZWSKmz4bTEkaxNQ4eEkiJWNrFUbPNVpkV+HHr+QMH1jhnq3SmZmQ0 fMnMpScOkOB19eNZSwnvtYH2UfKyGzq/iFi9mpFDhripV8vChizJq01FD+t4kHNWiKRq G5lp+N3hLSfi10G1U8DSGaLIRSsnSjsDgR14dHaZxJvWBvvKLmTlMi3zXLcYMJ2fohlS +3pA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent :content-language:to:from:subject:content-transfer-encoding; bh=jz+5UXWfMTpnGUVFYZsLhJrr7mcYPAtG7wbp68hsECY=; b=p33p2GT2nwnzvmsj31KLz10OlwnIszoACiHFV12J4rw8Q0pxwOJN8JSlykHCwDwslx Dt2lzYMcrUCrirJjnoWsjRALGkVSMzKDc518jKFXR9rLCKaRHV7bWJzxiTlrO/zG6r+S AewCRsq1psPlEmJYxvuDr2nmU+/usFoODEsylhKswmv5u0g0DHKfH5hQilHoXO27vWcq rylPaKTvqr8AwZntrnD1akCJcraozM6rLMNallCBMAXC01i5ZMsjHjdcNdRaBLO0jYqZ GyT5+NcaiwfPDtU90KThDkx9uZHqkliHjmvQ10bjGW0RrItrAIvHcAVrDxSPjbXFWl2c Ykxw== X-Gm-Message-State: AOAM532CEiCrVDSTGg3UBzNKFyN+eLVq7ok86ktphiBMwA6Ig65/mpuf xeCERzi1F12L+CJqTs0HWwS3grt/ceuEYg== X-Google-Smtp-Source: ABdhPJzh9gEDxUjUssp1KFjiVHhHtL/qQPdGG3mcFFORO4TJrspLj/qDSTwqeeorFOdzxUSXqgEGnQ== X-Received: by 2002:a2e:86c6:0:b0:246:3c93:1c8a with SMTP id n6-20020a2e86c6000000b002463c931c8amr20682727ljj.354.1648477118043; Mon, 28 Mar 2022 07:18:38 -0700 (PDT) Received: from [192.168.1.44] (141.244.226.109.ip.orionnet.ru. [109.226.244.141]) by smtp.gmail.com with ESMTPSA id h10-20020a056512220a00b0044a308dad8csm1646883lfu.149.2022.03.28.07.18.37 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 28 Mar 2022 07:18:37 -0700 (PDT) Message-ID: Date: Mon, 28 Mar 2022 21:18:34 +0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.7.0 Content-Language: en-US To: users@dpdk.org From: Danil Onishchenko Subject: NIC is unavailable in DPDK application Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Mailman-Approved-At: Tue, 29 Mar 2022 10:21:27 +0200 X-BeenThere: users@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK usage discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: users-bounces@dpdk.org Hello, I'm studying DPDK and trying to create a simple application, however it can't see a NIC bound to DPDK. 1. Here is a list of network devices I have on my machine $ dpdk-devbind.py --status-dev net Network devices using kernel driver =================================== 0000:01:00.0 'RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller 8168' if=enp1s0 drv=r8169 unused=vfio-pci *Active* 0000:02:00.0 'RTL8822BE 802.11a/b/g/n/ac WiFi adapter b822' if=wlp2s0 drv=rtw_8822be unused=rtw88_8822be,vfio-pci *Active* 2. I disable my ethernet NIC (it can't be bound to DPDK while it is active) and bind it to vfio-pci driver successfully $ ip link set enp1s0 down $ dpdk-devbind.py -b vfio-pci enp1s0 3. Now dpdk-devbind.py shows that the NIC is using DPDK-compatible driver $ dpdk-devbind.py --status-dev net Network devices using DPDK-compatible driver ============================================ 0000:01:00.0 'RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller 8168' drv=vfio-pci unused=r8169 Network devices using kernel driver =================================== 0000:02:00.0 'RTL8822BE 802.11a/b/g/n/ac WiFi adapter b822' if=wlp2s0 drv=rtw_8822be unused=rtw88_8822be,vfio-pci *Active* 4. However when I run any example DPDK application it says that there are no available NIC ports. For instance I wrote a simple application int main(int argc, char *argv[]) {     int ret;     int total_ports, avail_ports;     ret = rte_eal_init(argc, argv);     if( ret < 0 )         rte_exit(EXIT_FAILURE, "EAL initialization failed\n");     total_ports = rte_eth_dev_count_total();     avail_ports = rte_eth_dev_count_avail();     printf("ETH PORTS %d %d\n", total_ports, avail_ports);     rte_eal_cleanup();     return 0; } and both rte_eth_dev_count_total() and rte_eth_dev_count_avail() return 0. What am I doing wrong?