Re: [Qemu-devel] [PATCH v4 0/9] VMXNET3 paravirtual NIC device implementation

[Dmitry Fleytman]

Hello, Gerhard

I've tested telnet connections on Knoppix running on QEMU-KVM with patch V5.
Everything works fine on my setup.
What is your network setup? How do you connect tap1 interface to the
outer world?

Also, since you have ping failure to init MSI-X is not related to the
problem - device just falls back to MSI interrupts,
but anyway, why does it fail? Could it be some QEMU/KVM versions
incompartibility?

Best regards,
Dmitry Fleytman.

On Mon, Mar 19, 2012 at 9:24 PM, Gerhard Wiesinger <address@hidden> wrote:
> Hello Dmitry,
>
> Tried also v5 patch without success:
> /root/download/qemu/git/qemu-kvm/x86_64-softmmu/qemu-system-x86_64
> -drive
> if=ide,index=3,media=cdrom,file=ISO/KNOPPIX_V6.7.1CD-2011-09-14-DE.iso
> -boot order=cad,menu=on
> -m 2048 -k de -vga vmware -vnc :0
> -bios /root/download/seabios/git/seabios/out/bios.bin
> -chardev stdio,id=seabios -device isa-debugcon,iobase=0x402,chardev=seabios
> -device vmxnet3,mac=1a:46:0b:ca:bc:7e,vlan=1,romfile=
> -net tap,ifname=tap1,script=no,downscript=no,vlan=1
>
> ping ok, but outside tcp communication fails:
> # timeout Knoppix => outside
> telnet 192.168.0.2 22
> # timeout outside => Knoppix  failes
> telnet 192.168.0.30 22
>
> RTL8139 with same command line is ok.
>
> Maybe that helps directly at startup:
> kvm_msix_vector_add: kvm_add_msix failed: No space left on device
> [vmxnet3][WR][vmxnet3_use_msix_vectors]: Failed to use MSI-X vector 9, error
> -28
> [vmxnet3][WR][vmxnet3_init_msix]: Failed to use MSI-X vectors, error 0
> [vmxnet3][WR][vmxnet3_pci_init]: Failed to initialize MSI-X, configuration
> is inconsistent.
> [vmxnet3][WR][vmxnet3_peer_has_vnet_hdr]: Peer has no virtio extension. Task
> offloads will be emulated.
>
> I'm using git qemu-kvm and not git qemu.
>
> Thnx.
>
> Ciao,
> Gerhard
>
>
> On 18.03.2012 16:30, Dmitry Fleytman wrote:
>>
>> Hello, Gerhard
>>
>> I've rechecked SSH connection both incoming and outgoing with patch v5.
>> Everything works fine.
>> If you still see problems, please, provide your exact configuration.
>>
>> Thanking you for your support,
>> Dmitry Fleytman.
>>
>>
>> On Sun, Mar 18, 2012 at 10:29 AM, Gerhard Wiesinger
>> <address@hidden>  wrote:
>>>
>>> Hello,
>>>
>>> I'm still having problems with v4 patch: ping works well, even with large
>>> packet sizes but ssh doesn't work at all.
>>> Tested with Knoppix 6.7 and Fedora 16.
>>>
>>> Thnx.
>>>
>>> Ciao,
>>> Gerhard
>>>
>>>
>>> On 15.03.2012 22:08, Dmitry Fleytman wrote:
>>>>
>>>> This set of patches implements VMWare VMXNET3 paravirtual NIC device.
>>>> The device supports of all the device features including offload
>>>> capabilties,
>>>> VLANs and etc.
>>>> The device is tested on different OSes:
>>>>     Fedora 15
>>>>     Ubuntu 10.4
>>>>     Centos 6.2
>>>>     Windows 2008R2
>>>>     Windows 2008 64bit
>>>>     Windows 2008 32bit
>>>>     Windows 2003 64bit
>>>>     Windows 2003 32bit
>>>>
>>>> Changes in V4:
>>>>    Fixed a few problems uncovered by NETIO test suit
>>>>    Assertion on failure to initialize MSI/MSI-X replaced with warning
>>>>    message and fallback to Legacy/MSI respectively
>>>>
>>>>      Reported-by: Gerhard Wiesinger<address@hidden>
>>>>
>>>>    Various coding style adjustments and patch split-up as suggested by
>>>> Anthony Liguori
>>>>
>>>>      Reported-by: Anthony Liguori<address@hidden>
>>>>
>>>>    Live migration support added
>>>>
>>>> Changes in V3:
>>>>    Fixed crash when net device that is used as network fronted has no
>>>>    virtio HDR support.
>>>>    Task offloads emulation for cases when net device that is used as
>>>>    network fronted has no virtio HDR support.
>>>>
>>>>      Reported-by: Gerhard Wiesinger<address@hidden>
>>>>
>>>> Changes in V2:
>>>>    License text changed accoring to community suggestions
>>>>    Standard license header from GPLv2+ - licensed QEMU files used
>>>>
>>>> Dmitry Fleytman (9):
>>>>   Adding missing flag VIRTIO_NET_HDR_F_DATA_VALID from Linux kernel
>>>>     source tre     Reformatting comments according to checkpatch.pl
>>>>     requirements
>>>>   Adding utility function net_checksum_add_cont() that allows checksum
>>>>        calculation of scattered data with odd chunk sizes
>>>>   Adding utility function iov_net_csum_add() for iovec checksum
>>>>     calculation
>>>>   MSI-X state save/load invocations moved to PCI Device save/load
>>>>     callbacks     to avoid code duplication in MSI-X-enabled devices
>>>>     that support live migration
>>>>   Header with various utility functions shared by VMWARE SCSI and
>>>>     network devi
>>>>   Various utility functions used by VMWARE network devices
>>>>   Packet abstraction used by VMWARE network devices
>>>>   VMXNET3 paravirtual device implementation
>>>>   VMXNET3 paravirtualized device integration.     Interface type
>>>>     "vmxnet3" added.
>>>>
>>>>  Makefile.objs           |    1 +
>>>>  default-configs/pci.mak |    1 +
>>>>  hw/pci.c                |    7 +
>>>>  hw/pci.h                |    1 +
>>>>  hw/virtio-net.h         |   13 +-
>>>>  hw/virtio-pci.c         |    2 -
>>>>  hw/vmware_utils.h       |  122 +++
>>>>  hw/vmxnet3.c            | 2435
>>>> +++++++++++++++++++++++++++++++++++++++++++++++
>>>>  hw/vmxnet3.h            |  757 +++++++++++++++
>>>>  hw/vmxnet_debug.h       |  121 +++
>>>>  hw/vmxnet_pkt.c         | 1243 ++++++++++++++++++++++++
>>>>  hw/vmxnet_pkt.h         |  479 ++++++++++
>>>>  hw/vmxnet_utils.c       |  165 ++++
>>>>  hw/vmxnet_utils.h       |  320 +++++++
>>>>  iov.c                   |   29 +
>>>>  iov.h                   |    3 +
>>>>  net.c                   |    2 +-
>>>>  net/checksum.c          |   13 +-
>>>>  net/checksum.h          |   14 +-
>>>>  19 files changed, 5712 insertions(+), 16 deletions(-)
>>>>  create mode 100644 hw/vmware_utils.h
>>>>  create mode 100644 hw/vmxnet3.c
>>>>  create mode 100644 hw/vmxnet3.h
>>>>  create mode 100644 hw/vmxnet_debug.h
>>>>  create mode 100644 hw/vmxnet_pkt.c
>>>>  create mode 100644 hw/vmxnet_pkt.h
>>>>  create mode 100644 hw/vmxnet_utils.c
>>>>  create mode 100644 hw/vmxnet_utils.h
>>>>
>>
>