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 B0FDF463E5; Wed, 12 Mar 2025 10:43:55 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 4D2A8402CE; Wed, 12 Mar 2025 10:43:55 +0100 (CET) Received: from inbox.dpdk.org (inbox.dpdk.org [95.142.172.178]) by mails.dpdk.org (Postfix) with ESMTP id E76B340265 for ; Wed, 12 Mar 2025 10:43:53 +0100 (CET) Received: by inbox.dpdk.org (Postfix, from userid 33) id BF51C463E6; Wed, 12 Mar 2025 10:43:53 +0100 (CET) From: bugzilla@dpdk.org To: dev@dpdk.org Subject: [DPDK/ethdev Bug 1673] failed to parse device "net_pcap0" Date: Wed, 12 Mar 2025 09:43:52 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: DPDK X-Bugzilla-Component: ethdev X-Bugzilla-Version: 21.11 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: 915768903@qq.com X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: Normal X-Bugzilla-Assigned-To: dev@dpdk.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter target_milestone Message-ID: Content-Type: multipart/alternative; boundary=17417726330.342458.1615080 Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://bugs.dpdk.org/ Auto-Submitted: auto-generated X-Auto-Response-Suppress: All MIME-Version: 1.0 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org --17417726330.342458.1615080 Date: Wed, 12 Mar 2025 10:43:53 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.dpdk.org/ Auto-Submitted: auto-generated X-Auto-Response-Suppress: All https://bugs.dpdk.org/show_bug.cgi?id=3D1673 Bug ID: 1673 Summary: failed to parse device "net_pcap0" Product: DPDK Version: 21.11 Hardware: x86 OS: Linux Status: UNCONFIRMED Severity: normal Priority: Normal Component: ethdev Assignee: dev@dpdk.org Reporter: 915768903@qq.com Target Milestone: --- [Background Introduction] "I understand that the KNI feature was removed in DPDK version 23. I want DPDK to load TAP devices to communicate with the kernel. The control-plane packets [ICMP] received from the physical port should be handled by the TAP devices <=E2=80=93vdev=3Dnet_tap0 =E2=80=93vdev=3Dnet_tap1>. After processi= ng by DPDK, the user-plane packets will be sent back to the physical port via DPDK=E2=80=99= s TX interface." [To create a TAP device] sudo ip tuntap add dev dpdk_tap mode tap sudo ip link set dpdk_tap up sudo ip addr add 5.5.5.88/24 dev dpdk_tap=20 [To create a TAP device] snprintf(option[opt_num++], 128, "dpdk_tap"); snprintf(option[opt_num++], 128, "--main-lcore=3D%u", dns_cfg.mx_cpu); snprintf(option[opt_num++], 128, "--file-prefix=3Ddpdk_tap"); snprintf(option[opt_num++], 128, "-c0x%016llx%016llx%016llx%016llx", core_mask[3], core_mask[2], core_mask[1], core_mask[0]); snprintf(option[opt_num++], 128, "-n4"); snprintf(option[opt_num++], 128, "--vdev=3Dnet_pcap0,iface=3Ddpdk_tap"); snprintf(option[opt_num++], 128, "--log-level=3Dlib.eal:debug"); dpdk_opt_info_get(&opt_num, option, &dns_cfg); dpdk_pci_info_get(&opt_num, option); int ret; if((ret =3D rte_eal_init(opt_num, option)) < 0) { printf("!error: rte_eal_init failed\n"); return false; } [Error message"] EAL: Detected lcore 62 as core 12 on socket 0 EAL: Detected lcore 63 as core 12 on socket 1 EAL: Maximum logical cores by configuration: 128 EAL: Detected CPU lcores: 64 EAL: Detected NUMA nodes: 2 EAL: Checking presence of .so 'librte_eal.so.22.0' EAL: Checking presence of .so 'librte_eal.so.22' EAL: Checking presence of .so 'librte_eal.so' EAL: Detected static linkage of DPDK EAL: failed to parse device "net_pcap0" EAL: Unable to parse device 'net_pcap0,iface=3Ddpdk_tap' --=20 You are receiving this mail because: You are the assignee for the bug.= --17417726330.342458.1615080 Date: Wed, 12 Mar 2025 10:43:53 +0100 MIME-Version: 1.0 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.dpdk.org/ Auto-Submitted: auto-generated X-Auto-Response-Suppress: All
Bug ID 1673
Summary failed to parse device "net_pcap0"
Product DPDK
Version 21.11
Hardware x86
OS Linux
Status UNCONFIRMED
Severity normal
Priority Normal
Component ethdev
Assignee dev@dpdk.org
Reporter 915768903@qq.com
Target Milestone --- 

[Background Introduction]
   "I understand that the KNI feature was removed in DPDK version 23. =
I want
DPDK to load TAP devices to communicate with the kernel. The control-plane
packets [ICMP] received from the physical port should be handled by the TAP
devices <=E2=80=93vdev=3Dnet_tap0 =E2=80=93vdev=3Dnet_tap1>. After pr=
ocessing by DPDK, the
user-plane packets will be sent back to the physical port via DPDK=E2=80=99=
s TX
interface."

[To create a TAP device]
  sudo ip tuntap add dev dpdk_tap mode tap
  sudo ip link set dpdk_tap up
  sudo ip addr add 5.5.5.88/24 dev dpdk_tap=20
[To create a TAP device]
    snprintf(option[opt_num++], 128, "dpdk_tap");
    snprintf(option[opt_num++], 128, "--main-lcore=3D%u", dns_cfg=
.mx_cpu);
    snprintf(option[opt_num++], 128, "--file-prefix=3Ddpdk_tap");
    snprintf(option[opt_num++], 128, "-c0x%016llx%016llx%016llx%016llx=
",
            core_mask[3], core_mask[2], core_mask[1], core_mask[0]);
    snprintf(option[opt_num++], 128, "-n4");
    snprintf(option[opt_num++], 128, "--vdev=3Dnet_pcap0,iface=3Ddpdk_=
tap");
    snprintf(option[opt_num++], 128, "--log-level=3Dlib.eal:debug"=
;);
    dpdk_opt_info_get(&opt_num, option, &dns_cfg);
    dpdk_pci_info_get(&opt_num, option);

    int ret;
    if((ret =3D rte_eal_init(opt_num, option)) < 0)
    {
        printf("!error: rte_eal_init failed\n");
        return false;
    }

[Error message"]
EAL: Detected lcore 62 as core 12 on socket 0
EAL: Detected lcore 63 as core 12 on socket 1
EAL: Maximum logical cores by configuration: 128
EAL: Detected CPU lcores: 64
EAL: Detected NUMA nodes: 2
EAL: Checking presence of .so 'librte_eal.so.22.0'
EAL: Checking presence of .so 'librte_eal.so.22'
EAL: Checking presence of .so 'librte_eal.so'
EAL: Detected static linkage of DPDK
EAL: failed to parse device "net_pcap0"
EAL: Unable to parse device 'net_pcap0,iface=3Ddpdk_tap'

You are receiving this mail because:
  • You are the assignee for the bug.
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= --17417726330.342458.1615080--