멜라녹스(Mellanox) NIC 의 SR-IOV 활성화

장치 확인

Mellanox NIC 의 경우 기본값이 Infiniband 로 설정되어 있다.

# ifconfig -a | grep -i UP
eno1np0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 9000
eno2np1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 9000
ib0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 4092
ib1: flags=4099<UP,BROADCAST,MULTICAST>  mtu 4092
lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536

# lspci -v | grep -i mel
81:00.0 Infiniband controller: Mellanox Technologies MT28908 Family [ConnectX-6]
81:00.1 Infiniband controller: Mellanox Technologies MT28908 Family [ConnectX-6]

MFT 설치

OS에 맞는 Mellanox Firmware Tool 을 공식 홈페이지에서 다운로드 하여 설치한다.

https://www.mellanox.com/products/adapter-software/firmware-tools

wget https://www.mellanox.com/downloads/MFT/mft-4.17.0-106-x86_64-rpm.tgz
tar zxvf mft-4.17.0-106-x86_64-rpm.tgz
cd mft-4.17.0-106-x86_64-rpm
./install.sh

Mellanox SR-IOV 활성화

LINE 1 : MFT 도구 실행 / LINE 2 : 장비 타입 변경 (infiniband → ethernet) / LINE 3~4 : SR-IOV 설정 / LINE 5 : 설정 확인

mst start
mlxconfig -d /dev/mst/mt4123_pciconf0 set LINK_TYPE_P1=2 LINK_TYPE_P2=2
mlxconfig -d /dev/mst/mt4123_pciconf0 set SRIOV_EN=1
mlxconfig -d /dev/mst/mt4123_pciconf0 set NUM_OF_VFS=16
mlxconfig -d /dev/mst/mt4123_pciconf0 query | grep -E 'TYPE|SRIOV|VFS'
reboot

# mst start

# ls /dev/mst
mt4123_pciconf0  mt4123_pciconf0.1

# mlxconfig -d /dev/mst/mt4123_pciconf0 set LINK_TYPE_P1=2 LINK_TYPE_P2=2
# mlxconfig -d /dev/mst/mt4123_pciconf0 set SRIOV_EN=1
# mlxconfig -d /dev/mst/mt4123_pciconf0 set NUM_OF_VFS=16

# mlxconfig -d /dev/mst/mt4123_pciconf0 query | grep -E 'TYPE|SRIOV|VFS'
         NUM_OF_VFS                          16
         SRIOV_EN                            True(1)
         LINK_TYPE_P1                        ETH(2)
         LINK_TYPE_P2                        ETH(2)
         SRIOV_IB_ROUTING_MODE_P1            LID(1)
         SRIOV_IB_ROUTING_MODE_P2            LID(1)

# reboot

장치 변경사항 확인

ifconfig -a | grep -i UP
lspci -v | grep -i mel
lspci -v | grep -i mel -A 30
cat /sys/class/net/enp129s0f0/device/sriov_totalvfs

LINE 24 에서 SR-IOV 기능이 활성화 된 것을 확인할 수 있다.

LINE 29-30 에서 브로드컴의 커널 드라이버 모듈이 bnxt_en 임을 확인할 수 있다.

LINE 34-35 에서 VF (Virtual Function) 개수가 위에서 NUM_OF_VFS=16 으로 설정한 대로 설정되었다.

# ifconfig -a | grep -i UP
...
enp129s0f0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
enp129s0f1: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500

# lspci -v | grep -i mel
81:00.0 Ethernet controller: Mellanox Technologies MT28908 Family [ConnectX-6]
81:00.1 Ethernet controller: Mellanox Technologies MT28908 Family [ConnectX-6]

# lspci -v | grep -i mel -A 30
81:00.0 Ethernet controller: Mellanox Technologies MT28908 Family [ConnectX-6]
	Subsystem: Mellanox Technologies Device 0008
	Flags: bus master, fast devsel, latency 0, IRQ 701, IOMMU group 13
	Memory at 2001a000000 (64-bit, prefetchable) [size=32M]
	Expansion ROM at f0100000 [disabled] [size=1M]
	Capabilities: [60] Express Endpoint, MSI 00
	Capabilities: [48] Vital Product Data
	Capabilities: [9c] MSI-X: Enable+ Count=64 Masked-
	Capabilities: [c0] Vendor Specific Information: Len=18 <?>
	Capabilities: [40] Power Management version 3
	Capabilities: [100] Advanced Error Reporting
	Capabilities: [150] Alternative Routing-ID Interpretation (ARI)
	Capabilities: [180] Single Root I/O Virtualization (SR-IOV)
	Capabilities: [1c0] Secondary PCI Express
	Capabilities: [230] Access Control Services
	Capabilities: [320] Lane Margining at the Receiver <?>
	Capabilities: [370] Physical Layer 16.0 GT/s <?>
	Capabilities: [420] Data Link Feature <?>
	Kernel driver in use: mlx5_core
	Kernel modules: mlx5_core
...

# cat /sys/class/net/enp129s0f0/device/sriov_totalvfs
16