Hi,
My onboard intel ethernet NIC (em1, e1000e driver) in my HP DC7800 no
longer works after the upgrade to F21. It worked fine before. Inserting
a PCI NIC (p3p1, e1000 driver) restores network functionality.
The link lights for the onboard NIC are on during the bios bootup, but
go dark very early during the linux boot.
I don't really see anything interesting in the logs (I've grepped for
e1000 below. Any suggestions? lshw says the onboard nic is "DISABLED".
Why? ethtool says there is no link.
Debugging stuff:
[root@xena ~]# lshw -class network
*-network DISABLED
description: Ethernet interface
product: 82566DM-2 Gigabit Network Connection
vendor: Intel Corporation
physical id: 19
bus info: pci@0000:00:19.0
logical name: em1
version: 02
serial: 00:0f:fe:d4:f8:8e
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list ethernet physical tp
10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000e
driverversion=2.3.2-k firmware=1.3-1 latency=0 link=no multicast=yes
port=twisted pair
resources: irq:26 memory:f0200000-f021ffff
memory:f0225000-f0225fff ioport:3100(size=32)
*-network
description: Ethernet interface
product: 82541PI Gigabit Ethernet Controller
vendor: Intel Corporation
physical id: b
bus info: pci@0000:07:0b.0
logical name: p3p1
version: 05
serial: 00:1b:21:20:07:6e
size: 1Gbit/s
capacity: 1Gbit/s
width: 32 bits
clock: 66MHz
capabilities: pm pcix bus_master cap_list rom ethernet physical
tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000
driverversion=7.3.21-k8-NAPI duplex=full ip=192.168.0.94 latency=32
link=yes mingnt=255 multicast=yes port=twisted pair speed=1Gbit/s
resources: irq:22 memory:f0300000-f031ffff
memory:f0320000-f033ffff ioport:2100(size=64) memory:f0340000-f035ffff
[root@xena ~]# ethtool em1
Settings for em1:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supported pause frame use: No
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised pause frame use: No
Advertised auto-negotiation: Yes
Speed: Unknown!
Duplex: Unknown! (255)
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
MDI-X: Unknown (auto)
Supports Wake-on: pumbg
Wake-on: g
Current message level: 0x00000007 (7)
drv probe link
Link detected: no
[root@xena ~]# grep e1000 /var/log/messages
Jan 8 10:05:46 xena kernel: [ 1.787026] e1000e: Intel(R) PRO/1000
Network Driver - 2.3.2-k
Jan 8 10:05:46 xena kernel: [ 1.787027] e1000e: Copyright(c) 1999 -
2014 Intel Corporation.
Jan 8 10:05:46 xena kernel: [ 1.787208] e1000e 0000:00:19.0:
Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode
Jan 8 10:05:46 xena kernel: [ 2.088234] e1000e 0000:00:19.0 eth0:
(PCI Express:2.5GT/s:Width x1) 00:0f:fe:d4:f8:8e
Jan 8 10:05:46 xena kernel: [ 2.088237] e1000e 0000:00:19.0 eth0:
Intel(R) PRO/1000 Network Connection
Jan 8 10:05:46 xena kernel: [ 2.088257] e1000e 0000:00:19.0 eth0:
MAC: 7, PHY: 6, PBA No: 1062FF-0FF
Jan 8 10:05:46 xena kernel: [ 2.093634] e1000e 0000:00:19.0 em1:
renamed from eth0
Jan 8 10:05:46 xena kernel: [ 16.154347] e1000: Intel(R) PRO/1000
Network Driver - version 7.3.21-k8-NAPI
Jan 8 10:05:46 xena kernel: [ 16.154350] e1000: Copyright (c)
1999-2006 Intel Corporation.
Jan 8 10:05:46 xena kernel: [ 16.568865] e1000 0000:07:0b.0 eth0:
(PCI:33MHz:32-bit) 00:1b:21:20:07:6e
Jan 8 10:05:46 xena kernel: [ 16.568870] e1000 0000:07:0b.0 eth0:
Intel(R) PRO/1000 Network Connection
Jan 8 10:05:46 xena kernel: [ 17.008937] e1000 0000:07:0b.0 p3p1:
renamed from eth0
Jan 8 10:05:48 xena kernel: [ 21.061834] e1000: p3p1 NIC Link is Up
1000 Mbps Full Duplex, Flow Control: RX/TX
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