#431 3.15 removed jumbo frames for 82579V

wont-fix
nobody
None
in-kernel_driver
1
2014-10-07
2014-09-01
Fredrik
No

linux 3.15 seemed to remove jumbo frame support for my hardware in e1000e.

/sbin/ip link set mtu 9000 dev eth0
RTNETLINK answers: Invalid argument
e1000e 0000:00:19.0 eth0: Unsupported MTU setting

00:19.0 Ethernet controller: Intel Corporation 82579V Gigabit Network Connection (rev 05)
Subsystem: ASUSTeK Computer Inc. P8P67 Deluxe Motherboard
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
Interrupt: pin A routed to IRQ 36
Region 0: Memory at f7f00000 (32-bit, non-prefetchable) [size=128K]
Region 1: Memory at f7f29000 (32-bit, non-prefetchable) [size=4K]
Region 2: I/O ports at f040 [size=32]
Capabilities: [c8] 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=1 PME-
Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Address: 00000000feeff00c Data: 41a4
Capabilities: [e0] PCI Advanced Features
AFCap: TP+ FLR+
AFCtrl: FLR-
AFStatus: TP-
Kernel driver in use: e1000e

Discussion

  • Fredrik
    Fredrik
    2014-09-01

    /sbin/ip link set mtu 8996 dev eth0

    Works. But nothing higher.

     
  • Todd Fujinaka
    Todd Fujinaka
    2014-09-02

    • status: open --> wont-fix
     
  • This worked without error in kernels 3.14 and lower... no dropped packets.

    This same issue also effects i217, a brand new part. Is this part also misleading when it advertises jumbo frame support?