# 查看CPU core的numa

lscpu -a -p=cpu,node

查询PCIe设备所属numa

cat /sys/class/net/eth2/device/numa_node

1. PF和VF互转

pf-vf：

echo "physfn is $1"

echo "pf info:"

ls /sys/class/net/$1 -l

echo "vf info:"

eth_dev=`ls /sys/class/net/$1/device/virtfn* -l | cut -d ">" -f 2 |cut -d "/" -f 2`

for i in $eth_dev; do echo "`ls /sys/bus/pci/devices/$i/net` --> $i"; done

vf-pf：

echo "vf info:"

ls /sys/class/net/$1 -l

NAME=`ls /sys/class/net/$1/device/physfn/net/`

echo "pf info:"

echo "physfn is $NAME"

ls /sys/class/net/$NAME -l

2. 网卡名字与BDF互转

bdf -> name

ls /sys/bus/pci/devices/$i/net

name->bdf

ll /sys/class/net/eth5/device

3. 网卡绑定驱动

当前使用的驱动

# ll /sys/bus/pci/devices/0000:af:00.2/driver

lrwxrwxrwx 1 root root 0 Aug 15 22:03 /sys/bus/pci/devices/0000:af:00.2/driver -> ../../../../bus/pci/drivers/mlx5_core