[转帖]PCIe信息查询

https://www.jianshu.com/p/b3a57fcaff8d

查询PCIe设备厂商信息

通过PCIe设备的描述信息进行查询

PCIe设备的描述：Class号、厂商号（vender id)、设备号（device id).

通过PCIe设备的描述查询PCI设备具体信息的网站：http://pci-ids.ucw.cz/

Linux

1、操作系统查看一个网卡的PCI描述信息。

[root@inode-28 ~]# ethtool -i eth0

driver: igb

version: 5.2.9.4

firmware-version: 1.63, 0x800009fa

bus-info: 0000:01:00.0

supports-statistics: yes

supports-test: yes

supports-eeprom-access: yes

supports-register-dump: yes

supports-priv-flags: no

[root@inode-28 ~]# lspci -n -s 01:00.0

01:00.0 0200: 8086:1521 (rev 01)

[root@inode-28 ~]#

2、PCI官网查看0200: 8086:1521对应的意思如下；

那么其中0200对应Class 8086对应厂商号、1521对应设备号。

其中02为network controller、00为ethernet controller。

 

 

 

ESXi

1、ESXI系统下查看raid卡的PCI描述如下：

0106为Class号、8086为厂商号、8d02为设备号。

[root@esxi-37:~] lspci -v |grep "Class 0106" -B 1

0000:00:11.4 SATA controller Mass storage controller: Intel Corporation Wellsburg AHCI Controller [vmhba0]

Class 0106: 8086:8d62

--

0000:00:1f.2 SATA controller Mass storage controller: Intel Corporation Wellsburg AHCI Controller [vmhba1]

Class 0106: 8086:8d02

[root@esxi-37:~]

2、PCI官网查看0106: 8086:8d02对应意思。0106为mass storage controller--sata controller。

 

 

 

查询PCIe设备的Link width

Linux

# lspci -s 5a:00.0 -vvv |egrep -i "5a:00.0|LnkSta"

5a:00.0 Ethernet controller: Intel Corporation Ethernet Connection X722 for 10GbE SFP+ (rev 09)

LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-

LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1-

ESXi

[root@localhost:~] smbiosDump |egrep -i "slot|Bus Width"

System Slot (Type 9): #226

Designation: "Slot 5"

Bus Width: 0x0d (x16)

Slot ID: 5

System Slot (Type 9): #227

Designation: "Slot 6"

Bus Width: 0x0d (x16)

Slot ID: 6

System Slot (Type 9): #228

Designation: "Slot 4"

Bus Width: 0x0b (x8)

Slot ID: 4

System Slot (Type 9): #229

Designation: "Slot 7 RAID"

Bus Width: 0x0b (x8)

Slot ID: 7

System Slot (Type 9): #230

Designation: "Slot 8 M.2"

Bus Width: 0x09 (x2)

Slot ID: 8

说明：ESXi 下的smbiosDump命令类似于linux系统下的dmidecode命令，所以该日志记录的bus width应是post过程记录的，非实时信息。