Thank you for your reply!
On 29.03.2022 15:43, Дмитрий Степанов wrote:
Hey!
Realtek NICs are not supported by DPDK.
You can check the list of supported HW here -
https://core.dpdk.org/supported/
As a workaround you can setup virtual machine (e.g. using KVM) with
virtual NIC which is supported by DPDK (e.g. vmxnet3)
BTW: here is an article where someone tried to write his own PMD for
Realtek NIC -
https://medium.com/powerof2/writing-a-pmd-for-dpdk-56e6388467a8
вт, 29 мар. 2022 г. в 11:21, Danil Onishchenko
<[email protected]>:
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?
