linux | 網卡驅動

linux

1. 查看網卡信息

lspci | grep -i 'eth'

1a:00.0 Ethernet controller: Intel Corporation Ethernet Connection X722 for 10GbE SFP+ (rev 09)
1a:00.1 Ethernet controller: Intel Corporation Ethernet Connection X722 for 10GbE SFP+ (rev 09)
1a:00.2 Ethernet controller: Intel Corporation Ethernet Connection X722 for 1GbE (rev 09)
1a:00.3 Ethernet controller: Intel Corporation Ethernet Connection X722 for 1GbE (rev 09)
3b:00.0 Ethernet controller: Intel Corporation 82599ES 10-Gigabit SFI/SFP+ Network Connection (rev 01)
3b:00.1 Ethernet controller: Intel Corporation 82599ES 10-Gigabit SFI/SFP+ Network Connection (rev 01)

• 第一列表示的網卡編號

• 后面展示有2個10G，2個1G，2個擴展10G口，其中板載的是X722網卡，擴展的為82599ES網卡，通過查詢得知82599ES為X520類型。

2. 安裝驅動

1. 到對應官網下載對應的tar壓縮文件
2. tar zxvf ixgbe-5.3.3.tar.gz
3. 進入到對應目錄查看README文件，該文件敘述了支持的網卡型號以及安裝方法
4. rmmod ixgbe卸載原驅動
5. 進入src目錄進行make install
6. ip link show查看
7. 加載網卡驅動modprobe ixgbe或modprobe ixgbe allow_unsupported_sfp=1,1
8. 通過ethtool eth0查看對應網卡端口

3. 查看網卡驅動版本

[root@xxx tmp]# ethtool -i eth0
driver: i40e #所使用的驅動模塊名稱
version: 1.5.10-k #驅動版本
firmware-version: 3.2d 0x80000b8a 255.65535.255
expansion-rom-version:
bus-info: 0000:1a:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yes

4.查看模塊更多信息

[root@wxxxx ~]# modinfo i40e
filename:       /lib/modules/3.10.0-123.6.1.el6.ksyun.x86_64/updates/drivers/net/ethernet/intel/i40e/i40e.ko
version:        2.4.10
license:        GPL
description:    Intel(R) 40-10 Gigabit Ethernet Connection Network Driver
author:         Intel Corporation, <[e-mail]>
srcversion:     3977C21019A3C4865FF253A
alias:          pci:v00008086d0000158Bsv*sd*bc*sc*i*
alias:          pci:v00008086d0000158Asv*sd*bc*sc*i*
alias:          pci:v00008086d000037D3sv*sd*bc*sc*i*
alias:          pci:v00008086d000037D2sv*sd*bc*sc*i*
alias:          pci:v00008086d000037D1sv*sd*bc*sc*i*
alias:          pci:v00008086d000037D0sv*sd*bc*sc*i*
alias:          pci:v00008086d000037CFsv*sd*bc*sc*i*
alias:          pci:v00008086d000037CEsv*sd*bc*sc*i*
alias:          pci:v00008086d00001588sv*sd*bc*sc*i*
alias:          pci:v00008086d00001587sv*sd*bc*sc*i*
alias:          pci:v00008086d00001589sv*sd*bc*sc*i*
alias:          pci:v00008086d00001586sv*sd*bc*sc*i*
alias:          pci:v00008086d00001585sv*sd*bc*sc*i*
alias:          pci:v00008086d00001584sv*sd*bc*sc*i*
alias:          pci:v00008086d00001583sv*sd*bc*sc*i*
alias:          pci:v00008086d00001581sv*sd*bc*sc*i*
alias:          pci:v00008086d00001580sv*sd*bc*sc*i*
alias:          pci:v00008086d00001574sv*sd*bc*sc*i*
alias:          pci:v00008086d00001572sv*sd*bc*sc*i*
depends:        ptp
vermagic:       3.10.0-123.6.1.el6.ksyun.x86_64 SMP mod_unload modversions
parm:           debug:Debug level (0=none,...,16=all) (int)

5.問題

1. 有網卡識別不了。通過dmesg查看是由於模塊問題

ixgbe 0000:3b:00.1: PCI INT B -> GSI 44 (level, low) -> IRQ 44
ixgbe 0000:3b:00.1: setting latency timer to 64
ixgbe: 0000:3b:00.1: ixgbe_check_options: FCoE Offload feature enabled
ixgbe 0000:3b:00.1: failed to load because an unsupported SFP+ or QSFP module type was detected.
ixgbe 0000:3b:00.1: Reload the driver after installing a supported module.

方法：
rmmod ixgbe刪除驅動
modprobe ixgbe allow_unsupported_sfp=1,1
然后ifconfig即可。