failed to parse device "net_pcap0"
https://bugs.dpdk.org/show_bug.cgi?id=1673
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: [email protected]
Reporter: [email protected]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 <–vdev=net_tap0 –vdev=net_tap1>. After processing by DPDK, the user-plane packets will be sent back to the physical port via DPDK’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
[To create a TAP device]
snprintf(option[opt_num++], 128, "dpdk_tap");
snprintf(option[opt_num++], 128, "--main-lcore=%u", dns_cfg.mx_cpu);
snprintf(option[opt_num++], 128, "--file-prefix=dpdk_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=net_pcap0,iface=dpdk_tap");
snprintf(option[opt_num++], 128, "--log-level=lib.eal:debug");
dpdk_opt_info_get(&opt_num, option, &dns_cfg);
dpdk_pci_info_get(&opt_num, option);
int ret;
if((ret = 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=dpdk_tap'
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[DPDK/ethdev Bug 1673] failed to parse device "net_tap0"
https://bugs.dpdk.org/show_bug.cgi?id=1673
Stephen Hemminger ([email protected]) changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |INVALID--- Comment #10 from Stephen Hemminger ([email protected]) --- See commment above
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