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Date: Sat, 10 Dec 2011 22:26:31 +0100
From: Arkadiusz Miśkiewicz <a.miskiewicz@...il.com>
To: netdev@...r.kernel.org
Cc: Ian Campbell <ian.campbell@...rix.com>,
David Decotigny <david.decotigny@...gle.com>,
Eric Dumazet <eric.dumazet@...il.com>
Subject: forcedeth doesn't pass traffic (3.0.x kernel and earliers)
Hello,
I have few supermicro machines connected to edge-core switch using 1Gbps uplink.
The problem is that after boot I have to restart net to get network card pass traffic. The problem
is only with forcedeth network cards. It happens on different supermicro servers and it happens
for as far as I can remember (so, 2.6.3x kernels, too). Currently I'm on 3.0.13.
Logs below show state after fresh boot where network traffic doesn't get through.
Note that it shows that link is up but still - traffic doesn't get passed. tcpdump on eth0
interface sees only traffic initiated from this server and no traffic from outside.
Tried to set every offload (via ethtool -K) to off but that didn't help.
I have to make:
ip link set eth0 down; ip link set eth0 up
wait few second and then traffic starts to get passed. When I do that this shows in dmesg:
[ 1058.266480] forcedeth 0000:00:08.0: irq 40 for MSI/MSI-X
[ 1069.163238] eth0: no IPv6 routers present
(CC to few people shown by get_maintainer.pl)
LOGS/OUTPUTs from non working state after fresh boot.
# dmesg|grep eth
[ 34.528326] forcedeth: Reverse Engineered nForce ethernet driver. Version 0.64.
[ 34.528542] forcedeth 0000:00:08.0: PCI INT A -> Link[LMAC] -> GSI 22 (level, low) -> IRQ 22
[ 34.528547] forcedeth 0000:00:08.0: setting latency timer to 64
[ 35.055319] forcedeth 0000:00:08.0: ifname eth0, PHY OUI 0x5043 @ 2, addr 00:30:48:7a:b4:88
[ 35.055324] forcedeth 0000:00:08.0: highdma csum vlan pwrctl mgmt gbit lnktim msi desc-v3
[ 35.056480] forcedeth 0000:00:09.0: PCI INT A -> Link[LMAD] -> GSI 21 (level, low) -> IRQ 21
[ 35.056485] forcedeth 0000:00:09.0: setting latency timer to 64
[ 35.581960] forcedeth 0000:00:09.0: ifname eth1, PHY OUI 0x5043 @ 3, addr 00:30:48:7a:b4:89
[ 35.581965] forcedeth 0000:00:09.0: highdma csum vlan pwrctl mgmt gbit lnktim msi desc-v3
[ 35.584211] Loading kernel module for a network device with CAP_SYS_MODULE (deprecated). Use CAP_NET_ADMIN and alias netdev-eth0 instead
[ 35.591778] forcedeth 0000:00:08.0: irq 40 for MSI/MSI-X
[ 35.591970] forcedeth 0000:00:08.0: eth0: no link during initialization
[ 35.593030] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 37.666757] forcedeth 0000:00:08.0: eth0: link up
[ 37.668624] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 48.150006] eth0: no IPv6 routers present
lspci -vv:
00:09.0 Bridge: nVidia Corporation MCP55 Ethernet (rev a3)
Subsystem: Super Micro Computer Inc Device 1611
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0 (250ns min, 5000ns max)
Interrupt: pin A routed to IRQ 21
Region 0: Memory at feaf5000 (32-bit, non-prefetchable) [size=4K]
Region 1: I/O ports at b080 [size=8]
Region 2: Memory at feafa000 (32-bit, non-prefetchable) [size=256]
Region 3: Memory at feaf4c00 (32-bit, non-prefetchable) [size=16]
Capabilities: [44] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [70] MSI-X: Enable- Count=8 Masked-
Vector table: BAR=2 offset=00000000
PBA: BAR=3 offset=00000000
Capabilities: [50] MSI: Enable- Count=1/8 Maskable+ 64bit+
Address: 0000000000000000 Data: 0000
Masking: 00000000 Pending: 00000000
Capabilities: [6c] HyperTransport: MSI Mapping Enable- Fixed+
Kernel driver in use: forcedeth
# ethtool eth0
Settings for eth0:
Supported ports: [ MII ]
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: 1000Mb/s
Duplex: Full
Port: MII
PHYAD: 2
Transceiver: external
Auto-negotiation: on
Supports Wake-on: g
Wake-on: d
Link detected: yes
# ethtool -S eth0
NIC statistics:
tx_bytes: 46352
tx_zero_rexmt: 704
tx_one_rexmt: 0
tx_many_rexmt: 0
tx_late_collision: 0
tx_fifo_errors: 0
tx_carrier_errors: 0
tx_excess_deferral: 0
tx_retry_error: 0
rx_frame_error: 0
rx_extra_byte: 0
rx_late_collision: 0
rx_runt: 0
rx_frame_too_long: 0
rx_over_errors: 1
rx_crc_errors: 0
rx_frame_align_error: 0
rx_length_error: 0
rx_unicast: 31
rx_multicast: 0
rx_broadcast: 436
rx_packets: 467
rx_errors_total: 1
tx_errors_total: 0
tx_deferral: 0
tx_packets: 704
rx_bytes: 35872
tx_pause: 0
rx_pause: 0
rx_drop_frame: 170
# ethtool -k eth0
Offload parameters for eth0:
rx-checksumming: on
tx-checksumming: on
scatter-gather: on
tcp-segmentation-offload: on
udp-fragmentation-offload: off
generic-segmentation-offload: on
generic-receive-offload: on
large-receive-offload: off
rx-vlan-offload: on
tx-vlan-offload: on
ntuple-filters: off
receive-hashing: off
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc sfq state UP qlen 1000
link/ether 00:30:48:7a:b4:88 brd ff:ff:ff:ff:ff:ff
--
Arkadiusz Miśkiewicz PLD/Linux Team
arekm / maven.pl http://ftp.pld-linux.org/
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