Thanks a lot Jack.
According to my test, SRIOV works fine!
It's not the way we want, but this solution really helps.

So, we'll spend more time to solve the real problem, while we can use SRIOV as 
a substitution.

Best wishes.
 Jason Shi

------------------ Original ------------------
From:  "Jack Vogel"<>;
Date:  Thu, May 16, 2013 04:02 PM
To:  "GemaEvor"<>; 
Cc:  "freebsd-virtualization"<>; 
Subject:  Re: KVM+FreeBSD+82599 10G NIC doesn't work.

The environment that I tested in when the virtualization support was put 
intothe driver was using SRIOV, not pass-through, we have never validated the
latter, and whenever it crops up it seems to be having problems.

I can put it into my queue to look into, but I can't say how quickly I can get
to it, very busy here. 



On Thu, May 16, 2013 at 12:45 AM, GemaEvor <> wrote:
 Hi gurus:
 I'm working on a FreeBSD virtulizaion project under KVM.
 Everything works fine, except the 10G Intel 82599 SFP NIC.
 I'm sure there are some body else who have encountered this problem before. 
 FreeBSD guest with VTD NIC not passing traffic
 VT-d not working for FreeBSD 9.0 guest
 But, unfortunately, none of them solved it or gave the clearly way to solve 
it. :<
 Firstly, let's make it clearly. This problem could not be reproduced with:
 1. Xen hypervisor + FreeBSD guest os
 2. or KVM + Linux guest os (e.g. Fedora 12)
 So, it must be something wrong with KVM or FreeBSD.
 Here is my environment:
 Host OS:
 OpenSUSE 12.2
 Linux linux-kj2u 3.4.6-2.10-desktop #1 SMP PREEMPT Thu Jul 26 09:36:26 UTC 
2012 (641c197) x86_64 x86_64 x86_64 GNU/Linux
 QEMU emulator version 1.1.1 (kvm-1.1.1-1.8.1), Copyright (c) 2003-2008 Fabrice 
 Guest OS:
 FreeBSD 9.1 amd64
 What I did:
 1.Make the pci device of 82599SFP assignale:
 0d:00.0 Ethernet controller: Intel Corporation 82599EB 10-Gigabit SFI/SFP+ 
Network Connection (rev 01)
         Subsystem: QLogic, Corp. Device 00e4
         Flags: fast devsel, IRQ 25
         Memory at f8fe0000 (64-bit, prefetchable) [size=128K]
         I/O ports at cc00 [size=32]
         Memory at f8fdc000 (64-bit, prefetchable) [size=16K]
         Capabilities: [40] Power Management version 3
         Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+
         Capabilities: [70] MSI-X: Enable- Count=64 Masked-
         Capabilities: [a0] Express Endpoint, MSI 00
         Capabilities: [e0] Vital Product Data
         Capabilities: [100] Advanced Error Reporting
         Capabilities: [140] Device Serial Number 00-00-00-ff-ff-00-00-00
         Capabilities: [150] Alternative Routing-ID Interpretation (ARI)
         Capabilities: [160] Single Root I/O Virtualization (SR-IOV)
         Kernel driver in use: pci-stub
 2. Passthrough it to the guest FreeBSD os. Here is my vm configuration file
 <domain type='kvm'>
     <type arch='x86_64' machine='pc'>hvm</type>
     <boot dev='hd'/>
     <clock offset='utc'>
       <disk type='file' device='disk'>
       <driver name='qemu' type='raw' cache='default'/>
       <source file='/home/vm/FreeBSD9.1/FreeBSD9.1.raw'/>
       <target dev='hdc'/>
       <interface type='bridge'>
         <source bridge='br0'/>
         <mac address='52:54:00:0d:92:6f'/>
         <model type='rtl8139'/>
     <hostdev mode='subsystem' type='pci' managed='yes'>
         <address domain='0x0000' bus='0x0d' slot='0x00' function='0x0'/>
     <input type='mouse' bus='ps2'/>
     <graphics type='vnc' port='-1' autoport='yes'/>
 3.The device could be probed and attached by FreeBSD:
 ix0: <Intel(R) PRO/10GbE PCI-Express Network Driver, Version - 2.4.8> port 
0xc020-0xc03f mem 0xfe000000-0xfe01ffff,0xfe020000-0xfe023fff irq 11 at device 
4.0 on pci0
 ix0: Using MSIX interrupts with 2 vectors
 ix0: Ethernet address: 00:0c:bd:05:7d:4a
 ix0: PCI Express Bus: Speed 5.0Gb/s Width x8
 But no interrupt could be found:
 interrupt                          total       rate
 irq1: atkbd0                         143          0
 irq4: uart0                          177          1
 irq15: ata1                         1593         10
 cpu0:timer                          7140         46
 Total                               9053         58
 And ix0 keeps to be "no carrier" (even if I config an IP address on it and 
 ix0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
         ether 00:0c:bd:05:7d:4a
         media: Ethernet autoselect
         status: no carrier
 4.In the host side, kvm could see the change made by the guest on the device, 
but no irq:
 linux-kj2u:~ # cat /proc/interrupts
             CPU0       CPU1       CPU2       CPU3       CPU4       CPU5       
CPU6       CPU7       CPU8       CPU9       CPU10      CPU11      CPU12      
CPU13      CPU14      CPU15      CPU16      CPU17      CPU18      CPU19      
CPU20      CPU21      CPU22      CPU23
  210:          0          0          0          0          0          0        
  0          0          0          0          0          0          0          
0          0          0          0          0          0          0          0  
        0          0          0   PCI-MSI-edge      kvm:0000:0d:00.0
  211:          0          0          0          0          0          0        
  0          0          0          0          0          0          0          
0          0          0          0          0          0          0          0  
        0          0          0   PCI-MSI-edge      kvm:0000:0d:00.0
 So, anyone who has the same problem or has a clue to solve it, or has some 
ideas to do a debug job, please help.
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