我需要帮助，我可以设法获取我的戴尔 T420 的网卡（Broadcom BCM5720）
网络显示为“未认领”。我设法连接无线 USB 来获取互联网并尝试解决该问题，但我需要配置网卡。
我从戴尔下载了 QLogic_E3_Manual：https://dl.dell.com/FOLDER06268051M/1/QLogic_E3_Manual_External_End_User_35.07.00.11.zip 并且它说 BCM52XX 网卡的模块是 bnx 模块：bnx2、bnx2x、cnic、bnc2i 和 bnx2fc
我正在 modules.conf 中加载 bnx 模块
我正在寻找 bge 模数，但没有找到安装它的方法，考虑到这篇文章：http://manpages.ubuntu.com/manpages/bionic/man4/bge.4freebsd.html。但我不确定这个模块是不是我需要的。
有任何想法吗？
添加一些命令的输出：
root@emergente:~# uname -a
Linux emergente 5.4.0-26-generic #30-Ubuntu SMP Mon Apr 20 16:58:30 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
root@emergente:~# lshw -C network
*-network:0 UNCLAIMED
description: Ethernet controller
product: NetXtreme BCM5720 2-port Gigabit Ethernet PCIe
vendor: Broadcom Inc. and subsidiaries
physical id: 0
bus info: pci@0000:01:00.0
version: 00
width: 64 bits
clock: 33MHz
capabilities: pm vpd msi msix pciexpress cap_list
configuration: latency=0
resources: memory:d90a0000-d90affff memory:d90b0000-d90bffff memory:d90c0000-d90cffff memory:dd000000-dd0007ff
*-network:1 UNCLAIMED
description: Ethernet controller
product: NetXtreme BCM5720 2-port Gigabit Ethernet PCIe
vendor: Broadcom Inc. and subsidiaries
physical id: 0.1
bus info: pci@0000:01:00.1
version: 00
width: 64 bits
clock: 33MHz
capabilities: pm vpd msi msix pciexpress cap_list
configuration: latency=0
resources: memory:d90d0000-d90dffff memory:d90e0000-d90effff memory:d90f0000-d90fffff memory:dd000800-dd000fff
*-usb:1
description: Wireless interface
product: WN7512BEP Wireless LAN adapter
vendor: Arcadyan
physical id: 8
bus info: usb@2:1.8
logical name: wlxac1826809bac
version: 1.01
serial: ac:18:26:80:9b:ac
capabilities: usb-2.00 ethernet physical wireless
configuration: broadcast=yes driver=rt2800usb driverversion=5.4.0-26-generic firmware=0.36 ip=192.168.1.251 link=yes maxpower=450mA multicast=yes speed=480Mbit/s wireless=IEEE 802.11
root@emergente:~# lspci |grep net
01:00.0 Ethernet controller: Broadcom Inc. and subsidiaries NetXtreme BCM5720 2-port Gigabit Ethernet PCIe
01:00.1 Ethernet controller: Broadcom Inc. and subsidiaries NetXtreme BCM5720 2-port Gigabit Ethernet PCIe
root@emergente:~# ls /sys/class/net
lo wlxac1826809bac
root@emergente:~# ifconfig -a
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 170 bytes 14775 (14.7 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 170 bytes 14775 (14.7 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
wlxac1826809bac: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.251 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::ae18:26ff:fe80:9bac prefixlen 64 scopeid 0x20<link>
ether ac:18:26:80:9b:ac txqueuelen 1000 (Ethernet)
RX packets 3783 bytes 669361 (669.3 KB)
RX errors 0 dropped 14 overruns 0 frame 0
TX packets 6283 bytes 7173986 (7.1 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
root@emergente:~# lsmod
Module Size Used by
ccm 20480 3
nls_iso8859_1 16384 1
dm_multipath 32768 0
scsi_dh_rdac 16384 0
scsi_dh_emc 16384 0
scsi_dh_alua 20480 0
intel_rapl_msr 20480 0
intel_rapl_common 24576 1 intel_rapl_msr
sb_edac 32768 0
x86_pkg_temp_thermal 20480 0
intel_powerclamp 20480 0
ipmi_ssif 36864 0
coretemp 20480 0
rt2800usb 32768 0
rt2x00usb 24576 1 rt2800usb
rt2800lib 131072 1 rt2800usb
rt2x00lib 61440 3 rt2800usb,rt2x00usb,rt2800lib
kvm_intel 286720 0
mac80211 843776 3 rt2x00lib,rt2x00usb,rt2800lib
kvm 663552 1 kvm_intel
cfg80211 704512 2 rt2x00lib,mac80211
intel_cstate 20480 0
dcdbas 20480 0
libarc4 16384 1 mac80211
input_leds 16384 0
joydev 24576 0
intel_rapl_perf 20480 0
mei_me 40960 0
mei 106496 1 mei_me
ipmi_si 65536 0
ipmi_devintf 20480 0
mac_hid 16384 0
ipmi_msghandler 106496 3 ipmi_devintf,ipmi_si,ipmi_ssif
acpi_power_meter 20480 0
sch_fq_codel 20480 5
bnx2fc 94208 0
libfcoe 73728 1 bnx2fc
libfc 131072 2 bnx2fc,libfcoe
scsi_transport_fc 61440 2 libfc,bnx2fc
cnic 61440 1 bnx2fc
uio 20480 1 cnic
bnx2x 749568 0
mdio 16384 1 bnx2x
bnx2 81920 0
ip_tables 32768 0
x_tables 40960 1 ip_tables
autofs4 45056 2
btrfs 1249280 0
zstd_compress 167936 1 btrfs
raid10 57344 0
raid456 155648 0
async_raid6_recov 24576 1 raid456
async_memcpy 20480 2 raid456,async_raid6_recov
async_pq 24576 2 raid456,async_raid6_recov
async_xor 20480 3 async_pq,raid456,async_raid6_recov
async_tx 20480 5 async_pq,async_memcpy,async_xor,raid456,async_raid6_recov
xor 24576 2 async_xor,btrfs
raid6_pq 114688 4 async_pq,btrfs,raid456,async_raid6_recov
libcrc32c 16384 3 bnx2x,btrfs,raid456
raid1 45056 0
raid0 24576 0
multipath 20480 0
linear 20480 0
crct10dif_pclmul 16384 1
mgag200 32768 0
crc32_pclmul 16384 0
drm_vram_helper 20480 1 mgag200
i2c_algo_bit 16384 1 mgag200
ttm 106496 1 drm_vram_helper
hid_generic 16384 0
ghash_clmulni_intel 16384 0
drm_kms_helper 184320 3 mgag200
syscopyarea 16384 1 drm_kms_helper
aesni_intel 372736 2
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
fb_sys_fops 16384 1 drm_kms_helper
crypto_simd 16384 1 aesni_intel
usbhid 57344 0
uas 28672 0
cryptd 24576 2 crypto_simd,ghash_clmulni_intel
ahci 40960 0
hid 131072 2 usbhid,hid_generic
glue_helper 16384 1 aesni_intel
usb_storage 77824 1 uas
drm 491520 5 drm_kms_helper,drm_vram_helper,mgag200,ttm
lpc_ich 24576 0
libahci 32768 1 ahci
tg3 172032 0
megaraid_sas 163840 4
wmi 32768 0
root@emergente:~# dmesg |grep QLogic
[ 7.530596] bnx2x: QLogic 5771x/578xx 10/20-Gigabit Ethernet Driver bnx2x 1.713.36-0 (2014/02/10)
[ 7.568020] cnic: QLogic cnicDriver v2.5.22 (July 20, 2015)
[ 7.723639] bnx2fc: QLogic FCoE Driver bnx2fc v2.12.10 (October 15, 2015)
root@emergente:~# more /etc/modules-load.d/modules.conf
# /etc/modules: kernel modules to load at boot time.
#
# This file contains the names of kernel modules that should be loaded
# at boot time, one per line. Lines beginning with "#" are ignored.
bnx2
bnx2x
cnic
bnc2i
bnx2fc
root@emergente:~$ lspci -nnk | grep 0200 -A3
01:00.0 Ethernet controller [0200]: Broadcom Inc. and subsidiaries NetXtreme BCM5720 2-port Gigabit Ethernet PCIe [14e4:165f]
DeviceName: NIC1
Subsystem: Broadcom Inc. and subsidiaries NetXtreme BCM5720 2-port Gigabit Ethernet PCIe [14e4:165f]
Kernel modules: tg3
01:00.1 Ethernet controller [0200]: Broadcom Inc. and subsidiaries NetXtreme BCM5720 2-port Gigabit Ethernet PCIe [14e4:165f]
DeviceName: NIC2
Subsystem: Broadcom Inc. and subsidiaries NetXtreme BCM5720 2-port Gigabit Ethernet PCIe [14e4:165f]
Kernel modules: tg3
olver@emergente:~$ sudo modprobe tg3
olver@emergente:~$
olver@emergente:~$ dmesg | grep tg3
[ 1.417559] tg3.c:v3.137 (May 11, 2014)
[ 1.437058] tg3 0000:01:00.0: phy probe failed, err -19
[ 1.573417] tg3 0000:01:00.0: VPD access failed. This is likely a firmware bug on this device. Contact the card vendor for a firmware update
[ 1.639121] tg3 0000:01:00.0: Problem fetching invariants of chip, aborting
[ 1.913546] tg3 0000:01:00.1: phy probe failed, err -19
[ 2.045464] tg3 0000:01:00.1: VPD access failed. This is likely a firmware bug on this device. Contact the card vendor for a firmware update
[ 2.045656] tg3 0000:01:00.1: Problem fetching invariants of chip, aborting
更新1：
olver@emergente:~$ sudo modprobe tg3 && dmesg | grep tg3
[sudo] password for olver:
[ 1.417559] tg3.c:v3.137 (May 11, 2014)
[ 1.437058] tg3 0000:01:00.0: phy probe failed, err -19
[ 1.573417] tg3 0000:01:00.0: VPD access failed. This is likely a firmware bug on this device. Contact the card vendor for a firmware update
[ 1.639121] tg3 0000:01:00.0: Problem fetching invariants of chip, aborting
[ 1.913546] tg3 0000:01:00.1: phy probe failed, err -19
[ 2.045464] tg3 0000:01:00.1: VPD access failed. This is likely a firmware bug on this device. Contact the card vendor for a firmware update
[ 2.045656] tg3 0000:01:00.1: Problem fetching invariants of chip, aborting
[259674.731634] tg3.c:v3.137 (May 11, 2014)
[259674.741732] tg3 0000:01:00.0: phy probe failed, err -19
[259674.741929] tg3 0000:01:00.0: Problem fetching invariants of chip, aborting
[259674.753716] tg3 0000:01:00.1: phy probe failed, err -19
[259674.754227] tg3 0000:01:00.1: Problem fetching invariants of chip, aborting
[356350.395520] tg3.c:v3.137 (May 11, 2014)
[356350.409101] tg3 0000:01:00.0: phy probe failed, err -19
[356350.409278] tg3 0000:01:00.0: Problem fetching invariants of chip, aborting
[356350.425109] tg3 0000:01:00.1: phy probe failed, err -19
[356350.425610] tg3 0000:01:00.1: Problem fetching invariants of chip, aborting
在@chili555的帮助下，我知道 tg3 驱动程序无法正常工作，我尝试了一些方法以使网卡与其他模块一起工作，但没有成功。我尝试了以下命令：
modprobe -r broadcom
modprobe -r tg3
modprobe broadcom
modprobe tg3
但是网卡仍然无人认领，并且 lspci -nnk | grep 0200 -A3 继续显示 tg3 模块作为内核模块，即使在 modprobe -r tg3 之后也是如此。
现在我按照@kyodake 的建议升级到了 5.4.0-47-generic 内核
答案1
我也遇到了同样的问题。相应的驱动程序 bnx2 是 linux-modules-extra 软件包的一部分，该软件包在我的服务器上被意外删除；bnx2x 和 tg3 位于 linux-modules 中。如果您有其他网络方式，请尝试下载 linux-modules-extra 软件包，或者您可以启动 live-usb 来添加它。
答案2
当我第一次遇到这个问题时，这个答案帮助了我：安装 Broadcom 无线驱动程序- 下次我勾选安装第三方软件的框，然后驱动程序就安装好了，我就可以连接到网络了
答案3
尝试这个：
sudo apt update
sudo apt dist-upgrade
sudo service fwupd start
sudo fwupdmgr refresh
sudo fwupdmgr update