Just tried to enable larger mtu on interface, and failed, even i try to
disable both of mentioned in dmesg offloads.
05:00.0 Ethernet controller: Intel Corporation 80003ES2LAN Gigabit
Ethernet Controller (Copper) (rev 01)
05:00.1 Ethernet controller: Intel Corporation 80003ES2LAN Gigabit
Ethernet Controller (Copper) (rev 01)
L2TP ~ # ethtool -i eth0
driver: e1000e
version: 1.9.5-k
firmware-version: 1.0-0
bus-info: 0000:05:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
Here is what i did:
ifconfig eth1 mtu 2000
got dmesg:
[ 9160.679354] e1000e 0000:05:00.0: eth0: Jumbo frames cannot be
enabled when both receive checksum offload and receive hashing are
enabled. Disable one of the receive offload features before enabling
jumbos.
ethtool -K eth1 rxhash off
dmesg:
[ 9194.208856] e1000e 0000:05:00.1: eth1: Reset adapter
[ 9197.295425] e1000e: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow
Control: None
Lost connectivity for few seconds, then again i tried to:
ifconfig eth1 mtu 2000
dmesg:
[ 9207.797616] e1000e 0000:05:00.0: eth0: Jumbo frames cannot be
enabled when both receive checksum offload and receive hashing are
enabled. Disable one of the receive offload features before enabling
jumbos.
ethtool -K eth1 rx off
[ 9222.398034] e1000e 0000:05:00.1: eth1: Reset adapter
[ 9225.497550] e1000e: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow
Control: None
Again, tried: ifconfig eth1 mtu 2000
dmesg:
[ 9254.795445] e1000e 0000:05:00.0: eth0: Jumbo frames cannot be
enabled when both receive checksum offload and receive hashing are
enabled. Disable one of the receive offload features before enabling
jumbos.
L2TP ~ # ethtool -k eth1
Offload parameters for eth1:
rx-checksumming: off
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
L2TP ~ # ethtool -d eth1
MAC Registers
-------------
0x00000: CTRL (Device control register) 0x40144241
Endian mode (buffers): little
Link reset: normal
Set link up: 1
Invert Loss-Of-Signal: no
Receive flow control: disabled
Transmit flow control: disabled
VLAN mode: enabled
Auto speed detect: disabled
Speed select: 1000Mb/s
Force speed: no
Force duplex: no
0x00008: STATUS (Device status register) 0x02080787
Duplex: full
Link up: link config
TBI mode: disabled
Link speed: 1000Mb/s
Bus type: PCI Express
Port number: 1
0x00100: RCTL (Receive control register) 0x04008002
Receiver: enabled
Store bad packets: disabled
Unicast promiscuous: disabled
Multicast promiscuous: disabled
Long packet: disabled
Descriptor minimum threshold size: 1/2
Broadcast accept mode: accept
VLAN filter: disabled
Canonical form indicator: disabled
Discard pause frames: filtered
Pass MAC control frames: don't pass
Receive buffer size: 2048
0x02808: RDLEN (Receive desc length) 0x00001000
0x02810: RDH (Receive desc head) 0x00000046
0x02818: RDT (Receive desc tail) 0x00000040
0x02820: RDTR (Receive delay timer) 0x00000020
0x00400: TCTL (Transmit ctrl register) 0x3103F0FA
Transmitter: enabled
Pad short packets: enabled
Software XOFF Transmission: disabled
Re-transmit on late collision: enabled
0x03808: TDLEN (Transmit desc length) 0x00001000
0x03810: TDH (Transmit desc head) 0x00000098
0x03818: TDT (Transmit desc tail) 0x00000099
0x03820: TIDV (Transmit delay timer) 0x00000008
PHY type: unknown
---
Denys Fedoryshchenko, Network Engineer, Virtual ISP S.A.L.
> -----Original Message-----
> From: Denys Fedoryshchenko [mailto:[email protected]]
> Sent: Friday, June 08, 2012 7:59 AM
> To: Kirsher, Jeffrey T; [email protected]; [email protected];
> Brandeburg, Jesse; Allan, Bruce W; Wyborny, Carolyn; Skidmore, Donald
> C; Rose, Gregory V; Waskiewicz Jr, Peter P; Duyck, Alexander H;
> Ronciak, John; [email protected]; [email protected];
> [email protected]; [email protected]
> Subject: e1000e, 3.4.1, , jumbo frames are not working
>
> Just tried to enable larger mtu on interface, and failed, even i try
> to
> disable both of mentioned in dmesg offloads.
>
> 05:00.0 Ethernet controller: Intel Corporation 80003ES2LAN Gigabit
> Ethernet Controller (Copper) (rev 01)
> 05:00.1 Ethernet controller: Intel Corporation 80003ES2LAN Gigabit
> Ethernet Controller (Copper) (rev 01)
>
> L2TP ~ # ethtool -i eth0
> driver: e1000e
> version: 1.9.5-k
> firmware-version: 1.0-0
> bus-info: 0000:05:00.0
> supports-statistics: yes
> supports-test: yes
> supports-eeprom-access: yes
> supports-register-dump: yes
>
> Here is what i did:
> ifconfig eth1 mtu 2000
> got dmesg:
> [ 9160.679354] e1000e 0000:05:00.0: eth0: Jumbo frames cannot be
> enabled when both receive checksum offload and receive hashing are
> enabled. Disable one of the receive offload features before enabling
> jumbos.
>
> ethtool -K eth1 rxhash off
> dmesg:
> [ 9194.208856] e1000e 0000:05:00.1: eth1: Reset adapter
> [ 9197.295425] e1000e: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow
> Control: None
>
> Lost connectivity for few seconds, then again i tried to:
> ifconfig eth1 mtu 2000
>
> dmesg:
> [ 9207.797616] e1000e 0000:05:00.0: eth0: Jumbo frames cannot be
> enabled when both receive checksum offload and receive hashing are
> enabled. Disable one of the receive offload features before enabling
> jumbos.
>
> ethtool -K eth1 rx off
> [ 9222.398034] e1000e 0000:05:00.1: eth1: Reset adapter
> [ 9225.497550] e1000e: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow
> Control: None
>
> Again, tried: ifconfig eth1 mtu 2000
> dmesg:
> [ 9254.795445] e1000e 0000:05:00.0: eth0: Jumbo frames cannot be
> enabled when both receive checksum offload and receive hashing are
> enabled. Disable one of the receive offload features before enabling
> jumbos.
>
> L2TP ~ # ethtool -k eth1
> Offload parameters for eth1:
> rx-checksumming: off
> 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
>
> L2TP ~ # ethtool -d eth1
> MAC Registers
> -------------
> 0x00000: CTRL (Device control register) 0x40144241
> Endian mode (buffers): little
> Link reset: normal
> Set link up: 1
> Invert Loss-Of-Signal: no
> Receive flow control: disabled
> Transmit flow control: disabled
> VLAN mode: enabled
> Auto speed detect: disabled
> Speed select: 1000Mb/s
> Force speed: no
> Force duplex: no
> 0x00008: STATUS (Device status register) 0x02080787
> Duplex: full
> Link up: link config
> TBI mode: disabled
> Link speed: 1000Mb/s
> Bus type: PCI Express
> Port number: 1
> 0x00100: RCTL (Receive control register) 0x04008002
> Receiver: enabled
> Store bad packets: disabled
> Unicast promiscuous: disabled
> Multicast promiscuous: disabled
> Long packet: disabled
> Descriptor minimum threshold size: 1/2
> Broadcast accept mode: accept
> VLAN filter: disabled
> Canonical form indicator: disabled
> Discard pause frames: filtered
> Pass MAC control frames: don't pass
> Receive buffer size: 2048
> 0x02808: RDLEN (Receive desc length) 0x00001000
> 0x02810: RDH (Receive desc head) 0x00000046
> 0x02818: RDT (Receive desc tail) 0x00000040
> 0x02820: RDTR (Receive delay timer) 0x00000020
> 0x00400: TCTL (Transmit ctrl register) 0x3103F0FA
> Transmitter: enabled
> Pad short packets: enabled
> Software XOFF Transmission: disabled
> Re-transmit on late collision: enabled
> 0x03808: TDLEN (Transmit desc length) 0x00001000
> 0x03810: TDH (Transmit desc head) 0x00000098
> 0x03818: TDT (Transmit desc tail) 0x00000099
> 0x03820: TIDV (Transmit delay timer) 0x00000008
> PHY type: unknown
>
>
> ---
> Denys Fedoryshchenko, Network Engineer, Virtual ISP S.A.L.
Thanks for the report. We are aware of the issue and have already begun
working on a patch to resolve the issue.
Bruce.
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it's the same on kernel 3.4.3.
I can't activate jumbo frames
my mobo is S5000PAL
> -----Original Message-----
> From: [email protected] [mailto:linux-kernel-
> [email protected]] On Behalf Of madovsky
> Sent: Wednesday, June 20, 2012 7:49 AM
> To: [email protected]
> Subject: RE: e1000e, 3.4.1, , jumbo frames are not working
>
> it's the same on kernel 3.4.3.
> I can't activate jumbo frames
> my mobo is S5000PAL
This is already known and discussed on previous threads. If you look at
the system log file you will see a message from the driver which states
"Jumbo frames cannot be enabled when both receive checksum offload and
receive hashing are enabled. Disable one of the receive offload features
before enabling jumbos." A patch that removes this incompatibility is
currently in test here at Intel and should be passed upstream soon.
Thanks,
Bruce.
ok thanks Bruce
----- Original Message -----
From: "Allan, Bruce W" <[email protected]>
To: "madovsky" <[email protected]>; <[email protected]>
Sent: Wednesday, June 20, 2012 12:45 PM
Subject: RE: e1000e, 3.4.1, , jumbo frames are not working
> -----Original Message-----
> From: [email protected] [mailto:linux-kernel-
> [email protected]] On Behalf Of madovsky
> Sent: Wednesday, June 20, 2012 7:49 AM
> To: [email protected]
> Subject: RE: e1000e, 3.4.1, , jumbo frames are not working
>
> it's the same on kernel 3.4.3.
> I can't activate jumbo frames
> my mobo is S5000PAL
This is already known and discussed on previous threads. If you look at
the system log file you will see a message from the driver which states
"Jumbo frames cannot be enabled when both receive checksum offload and
receive hashing are enabled. Disable one of the receive offload features
before enabling jumbos." A patch that removes this incompatibility is
currently in test here at Intel and should be passed upstream soon.
Thanks,
Bruce.