[dpdk] 熟悉SDK与初步使用 （一）(qemu搭建实验环境)

搭建实验环境：

troubleshoot

第一步加载驱动

第二步切换驱动

使用了所有qemu支持的卡

[tong@T7:~/VM/dpdk]
% cat start.sh
sudo qemu-system-x86_64 -nographic -vnc 127.0.0.1:1 -enable-kvm 
        -m 2G -cpu Nehalem -smp cores=2,threads=2,sockets=2 
        -numa node,mem=1G,cpus=0-3,nodeid=0 
        -numa node,mem=1G,cpus=4-7,nodeid=1 
        -drive file=disk.img,if=virtio 
        -net nic,vlan=0,model=virtio,macaddr='00:00:00:01:00:00' 
        -net nic,vlan=1,model=ne2k_pci,macaddr='00:00:00:01:00:01' 
        -net nic,vlan=2,model=i82551,macaddr='00:00:00:01:00:02' 
        -net nic,vlan=2,model=i82557b,macaddr='00:00:00:01:00:03' 
        -net nic,vlan=2,model=i82559er,macaddr='00:00:00:01:00:04' 
        -net nic,vlan=2,model=rtl8139,macaddr='00:00:00:01:00:05' 
        -net nic,vlan=2,model=e1000,macaddr='00:00:00:01:00:06' 
        -net nic,vlan=2,model=pcnet,macaddr='00:00:00:01:00:07' 
        -net tap,vlan=0,ifname=tap-dpdk-control 
        -net tap,vlan=1,ifname=tap-dpdk-1,script=no,downscript=no 
        -net tap,vlan=2,ifname=tap-dpdk-2,script=no,downscript=no &
#       -device vfio-pci,host='0000:00:19.0' 
#ne2k_pci,i82551,i82557b,i82559er,rtl8139,e1000,pcnet,virtio
[tong@T7:~/VM/dpdk]

只有virtio是对队列的

[root@dpdk ~]# lspci -vv |grep -E '^00|MSI'
00:00.0 Host bridge: Intel Corporation 440FX - 82441FX PMC [Natoma] (rev 02)
00:01.0 ISA bridge: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II]
00:01.1 IDE interface: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II] (prog-if 80 [Master])
00:01.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 03)
00:02.0 VGA compatible controller: Device 1234:1111 (rev 02) (prog-if 00 [VGA controller])
00:03.0 Ethernet controller: Red Hat, Inc Virtio network device
        Capabilities: [98] MSI-X: Enable+ Count=3 Masked-
00:04.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8029(AS)
00:05.0 Ethernet controller: Intel Corporation 8255xER/82551IT Fast Ethernet Controller (rev 0f)
00:06.0 Ethernet controller: Intel Corporation 82557/8/9/0/1 Ethernet Pro 100 (rev 02)
00:07.0 Ethernet controller: Intel Corporation 8255xER/82551IT Fast Ethernet Controller (rev 09)
00:08.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8100/8101L/8139 PCI Fast Ethernet Adapter (rev 20)
00:09.0 Ethernet controller: Intel Corporation 82540EM Gigabit Ethernet Controller (rev 03)
00:0a.0 Ethernet controller: Advanced Micro Devices, Inc. [AMD] 79c970 [PCnet32 LANCE] (rev 10)
00:0b.0 SCSI storage controller: Red Hat, Inc Virtio block device
        Capabilities: [98] MSI-X: Enable+ Count=2 Masked-
[root@dpdk ~]# 

xxx

[root@dpdk tools]# ./dpdk-devbind.py -b igb_uio eth1
[root@dpdk tools]# ./dpdk-devbind.py -b igb_uio eth2
[root@dpdk tools]# ./dpdk-devbind.py -s

Network devices using DPDK-compatible driver
============================================
0000:00:04.0 'Virtio network device' drv=igb_uio unused=
0000:00:05.0 'Virtio network device' drv=igb_uio unused=

Network devices using kernel driver
===================================
0000:00:03.0 'Virtio network device' if=eth0 drv=virtio-pci unused=igb_uio *Active*

Other network devices
=====================
<none>
[root@dpdk tools]# 

qemu的所有nic都可以使用uio

[root@dpdk tools]# ./dpdk-devbind.py -s

Network devices using DPDK-compatible driver
============================================
<none>

Network devices using kernel driver
===================================
0000:00:03.0 'Virtio network device' if=eth0 drv=virtio-pci unused=igb_uio *Active*
0000:00:08.0 'RTL-8100/8101L/8139 PCI Fast Ethernet Adapter' if=ens8 drv=8139cp unused=igb_uio 
0000:00:09.0 '82540EM Gigabit Ethernet Controller' if=ens9 drv=e1000 unused=igb_uio 

Other network devices
=====================
0000:00:04.0 'RTL-8029(AS)' unused=igb_uio
0000:00:05.0 '8255xER/82551IT Fast Ethernet Controller' unused=igb_uio
0000:00:06.0 '82557/8/9/0/1 Ethernet Pro 100' unused=igb_uio
0000:00:07.0 '8255xER/82551IT Fast Ethernet Controller' unused=igb_uio
0000:00:0a.0 '79c970 [PCnet32 LANCE]' unused=igb_uio
[root@dpdk tools]#