查看网卡的当前工作状态
执行ibstat, 返回的Link layer信息, 就是 网卡的工作模式
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knightli@epyc:~$ sudo ibstat
CA 'mlx4_0'
CA type: MT4103
Number of ports: 2
Firmware version: 2.42.5700
Hardware version: 0
Node GUID: 0x98f2b3ffffd5c3c0
System image GUID: 0x98f2b3ffffd5c3c3
Port 1:
State: Down
Physical state: Disabled
Rate: 40
Base lid: 0
LMC: 0
SM lid: 0
Capability mask: 0x00010000
Port GUID: 0x9af2b3fffed5c3c1
Link layer: Ethernet
Port 2:
State: Down
Physical state: Disabled
Rate: 40
Base lid: 0
LMC: 0
SM lid: 0
Capability mask: 0x00010000
Port GUID: 0x9af2b3fffed5c3c2
Link layer: Ethernet
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切换工作模式
安装mst软件
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root@epyc:/home/knightli# systemctl start mst
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查询设备名称
MST devices下就是返回的设备名，注意2个端口也对应一个设备名
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root@epyc-7551p:/home/knightli# mst status
MST modules:
------------
MST PCI module loaded
MST PCI configuration module loaded
MST devices:
------------
/dev/mst/mt4103_pciconf0 - PCI configuration cycles access.
domain:bus:dev.fn=0000:28:00.0 addr.reg=88 data.reg=92 cr_bar.gw_offset=-1
Chip revision is: 00
/dev/mst/mt4103_pci_cr0 - PCI direct access.
domain:bus:dev.fn=0000:28:00.0 bar=0xeb700000 size=0x100000
Chip revision is: 00
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切换工作模式
mlxconfig -d /dev/mst/mt4103_pciconf0 set LINK_TYPE_P1=1
- -d 设备名称
- LINK_TYPE
LINK_TYPE_P1 : 端口1
LINK_TYPE_P2 : 端口2
1 : IB
2 : Ethernet
3 : VPI
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root@epyc:/home/knightli# mlxconfig -d /dev/mst/mt4103_pciconf0 set LINK_TYPE_P1=1
Device #1:
----------
Device type: ConnectX3Pro
Device: /dev/mst/mt4103_pciconf0
Configurations: Next Boot New
LINK_TYPE_P1 IB(1) IB(1)
Apply new Configuration? (y/n) [n] : y
Applying... Done!
-I- Please reboot machine to load new configurations.
root@epyc:/home/knightli# mlxconfig -d /dev/mst/mt4103_pciconf0 set LINK_TYPE_P2=1
Device #1:
----------
Device type: ConnectX3Pro
Device: /dev/mst/mt4103_pciconf0
Configurations: Next Boot New
LINK_TYPE_P2 IB(1) IB(1)
Apply new Configuration? (y/n) [n] : y
Applying... Done!
-I- Please reboot machine to load new configurations.
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重启主机
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root@epyc-7551p:/home/knightli# sudo reboot
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