Subject: SR-IOV problem with Intel 82599EB (not enough MMIO resources for SR-IOV)

From: "pkill.2012" <[email-masked]>
Date: Thu, 8 Nov 2012 19:15:21 +0800

Hello,
 
I installed kvm and tried to use SR-IOV virtualizaton for 82599EB(Intel XT-520 T2) dual port card with latest ixgbe driver(version:3.11.33) , 
kernel2.6.32-279.14.1(OS:Centos6.3) ,after configuration and reboot
It seems that only first port of the card's VFs works,second port of the card's VFs didn't work
I found some errors in /var/log messages:
 
Nov  8 14:56:54 12 kernel: ixgbe 0000:07:00.1: not enough MMIO resources for SR-IOV
Nov  8 14:56:54 12 kernel: ixgbe 0000:07:00.1: (unregistered net_device): Failed to enable PCI sriov: -12
 
How to fix it,any help would be greatly appreciated.
 
below is the related information:
Server: R710
OS: centos6.3
NIC: X520-T2(dual port)
kernel: 2.6.32-279.14.1.el6.x86_64
BIOSVersion: 6.3.0(latest)
BIOS:Inter VT/VT-d or SR-IOV(enabled)
ixgbe:3.11.33(latest)
ixgbevf:2.7.12(latest)
grub config:intel_iommu=on appended
 
/var/log/messages:
Nov  8 14:56:54 12 kernel: Intel(R) 10 Gigabit PCI Express Network Driver - version 3.11.33
Nov  8 14:56:54 12 kernel: Copyright (c) 1999-2012 Intel Corporation.
Nov  8 14:56:54 12 kernel: ixgbe 0000:07:00.0: PCI INT B -> GSI 50 (level, low) -> IRQ 50
Nov  8 14:56:54 12 kernel: ixgbe: I/O Virtualization (IOV) set to 2
Nov  8 14:56:54 12 kernel: ixgbe: 0000:07:00.0: ixgbe_check_options: FCoE Offload feature enabled
Nov  8 14:56:54 12 kernel: ixgbe 0000:07:00.0: (unregistered net_device): SR-IOV enabled with 2 VFs
Nov  8 14:56:54 12 kernel: ixgbe 0000:07:00.0: FCoE offload feature is not available. Disabling FCoE offload feature
Nov  8 14:56:54 12 kernel: ixgbe 0000:07:00.0: (PCI Express:5.0GT/s:Width x8) 68:05:ca:0c:7a:e2
Nov  8 14:56:54 12 kernel: ixgbe 0000:07:00.0: eth4: MAC: 2, PHY: 2, PBA No: G21371-003
Nov  8 14:56:54 12 kernel: ixgbe 0000:07:00.0: eth4: Enabled Features: RxQ: 1 TxQ: 1 LRO
Nov  8 14:56:54 12 kernel: ixgbe 0000:07:00.0: eth4: IOV: VF 0 is enabled mac 0E:15:B9:26:B3:7D
Nov  8 14:56:54 12 kernel: ixgbe 0000:07:00.0: eth4: IOV: VF 1 is enabled mac 32:69:2D:16:B9:40
Nov  8 14:56:54 12 kernel: ixgbe 0000:07:00.0: eth4: Intel(R) 10 Gigabit Network Connection
Nov  8 14:56:54 12 kernel: ixgbe 0000:07:00.1: PCI INT A -> GSI 40 (level, low) -> IRQ 40
Nov  8 14:56:54 12 kernel: ixgbe: I/O Virtualization (IOV) set to 2
Nov  8 14:56:54 12 kernel: ixgbe: 0000:07:00.1: ixgbe_check_options: FCoE Offload feature enabled
Nov  8 14:56:54 12 kernel: ixgbe 0000:07:00.1: not enough MMIO resources for SR-IOV
Nov  8 14:56:54 12 kernel: ixgbe 0000:07:00.1: (unregistered net_device): Failed to enable PCI sriov: -12
Nov  8 14:56:54 12 kernel: ixgbe 0000:07:00.1: FCoE offload feature is not available. Disabling FCoE offload feature
Nov  8 14:56:54 12 kernel: ixgbe 0000:07:00.1: (PCI Express:5.0GT/s:Width x8) 68:05:ca:0c:7a:e3
Nov  8 14:56:54 12 kernel: ixgbe 0000:07:00.1: eth5: MAC: 2, PHY: 2, PBA No: G21371-003
Nov  8 14:56:54 12 kernel: ixgbe 0000:07:00.1: eth5: Enabled Features:
RxQ: 16 TxQ: 16 FdirHash RSC
Nov  8 14:56:54 12 kernel: ixgbe 0000:07:00.1: eth5: Intel(R) 10
Gigabit Network Connection
 
# dmesg |grep -E 'DMA|IOMMU'
ACPI: DMAR 00000000bf3b3668 001C0 (v01 DELL   PE_SC3   00000001 DELL 00000001)
  DMA      0x00000001 -> 0x00001000
  DMA32    0x00001000 -> 0x00100000
  DMA zone: 56 pages used for memmap
  DMA zone: 102 pages reserved
  DMA zone: 3839 pages, LIFO batch:0
  DMA32 zone: 14280 pages used for memmap
  DMA32 zone: 764849 pages, LIFO batch:31
Intel-IOMMU: enabled
DMAR: Host address width 40
DMAR: DRHD base: 0x000000fed90000 flags: 0x1
IOMMU fed90000: ver 1:0 cap c90780106f0462 ecap f020fe
DMAR: RMRR base: 0x000000bf4c8000 end: 0x000000bf4dffff
DMAR: RMRR base: 0x000000bf4b1000 end: 0x000000bf4bffff
DMAR: RMRR base: 0x000000bf4a1000 end: 0x000000bf4a1fff
DMAR: RMRR base: 0x000000bf4a3000 end: 0x000000bf4a3fff
DMAR: RMRR base: 0x000000bf4a5000 end: 0x000000bf4a5fff
DMAR: RMRR base: 0x000000bf4a7000 end: 0x000000bf4a7fff
DMAR: RMRR base: 0x000000bf4c0000 end: 0x000000bf4c0fff
DMAR: RMRR base: 0x000000bf4c2000 end: 0x000000bf4c2fff
DMAR: ATSR flags: 0x0
DMAR: Device scope device [0000:00:1a.02] not found
DMAR: Device scope device [0000:00:1a.02] not found
DMAR: Device scope device [0000:00:1d.02] not found
DMAR: Device scope device [0000:00:1d.02] not found
IOMMU 0xfed90000: using Queued invalidation
IOMMU: Setting RMRR:
IOMMU: Setting identity map for device 0000:00:1d.7 [0xbf4c2000 - 0xbf4c3000]
IOMMU: Setting identity map for device 0000:00:1a.7 [0xbf4c0000 - 0xbf4c1000]
IOMMU: Setting identity map for device 0000:00:1d.1 [0xbf4a7000 - 0xbf4a8000]
IOMMU: Setting identity map for device 0000:00:1d.0 [0xbf4a5000 - 0xbf4a6000]
IOMMU: Setting identity map for device 0000:00:1a.1 [0xbf4a3000 - 0xbf4a4000]
IOMMU: Setting identity map for device 0000:00:1a.0 [0xbf4a1000 - 0xbf4a2000]
IOMMU: Setting identity map for device 0000:00:1a.0 [0xbf4b1000 - 0xbf4c0000]
IOMMU: Setting identity map for device 0000:00:1a.1 [0xbf4b1000 - 0xbf4c0000]
IOMMU: Setting identity map for device 0000:00:1d.0 [0xbf4b1000 - 0xbf4c0000]
IOMMU: Setting identity map for device 0000:00:1d.1 [0xbf4b1000 - 0xbf4c0000]
IOMMU: Setting identity map for device 0000:00:1a.7 [0xbf4c8000 - 0xbf4e0000]
IOMMU: Setting identity map for device 0000:00:1d.7 [0xbf4c8000 - 0xbf4e0000]
IOMMU: Prepare 0-16MiB unity mapping for LPC
IOMMU: Setting identity map for device 0000:00:1f.0 [0x0 - 0x1000000]
PCI-DMA: Intel(R) Virtualization Technology for Directed I/O
ata1: SATA max UDMA/133 cmd 0xdc10 ctl 0xdc08 bmdma 0xdc20 irq 23
ata2: SATA max UDMA/133 cmd 0xdc18 ctl 0xdc0c bmdma 0xdc28 irq 23
ata1.00: ATAPI: TSSTcorp DVD-ROM SN-108BB, D150, max UDMA/100
ata1.00: configured for UDMA/100
 
# lspci|grep Virtual
07:10.0 Ethernet controller: Intel Corporation 82599 Virtual Function (rev 01)
07:10.2 Ethernet controller: Intel Corporation 82599 Virtual Function (rev 01)
 
#lspci|grep '82599EB'
07:00.0 Ethernet controller: Intel Corporation 82599EB 10 Gigabit TN
Network Connection (rev 01)
07:00.1 Ethernet controller: Intel Corporation 82599EB 10 Gigabit TN
Network Connection (rev 01)
 
# lspci -n|grep 07:00
07:00.0 0200: 8086:151c (rev 01)
07:00.1 0200: 8086:151c (rev 01)
 
# lspci -n -d 8086:151c -vvv|grep -i width
LnkCap: Port #2, Speed 5GT/s, Width x8, ASPM L0s, Latency L0 <1us, L1 <8us
LnkSta: Speed 5GT/s, Width x8, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
LnkCap: Port #2, Speed 5GT/s, Width x8, ASPM L0s, Latency L0 <1us, L1 <8us
LnkSta: Speed 5GT/s, Width x8, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
 
#lspci -vvv -s 07:00
07:00.0 Ethernet controller: Intel Corporation 82599EB 10 Gigabit TN Network Connection (rev 01)
Subsystem: Intel Corporation Ethernet Server Adapter X520-T2
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, Cache Line Size: 64 bytes
Interrupt: pin B routed to IRQ 50
Region 0: Memory at de400000 (64-bit, non-prefetchable) [size=2M]
Region 2: I/O ports at ecc0 [size=32]
Region 4: Memory at de3f8000 (64-bit, non-prefetchable) [size=16K]
Expansion ROM at de200000 [disabled] [size=1M]
Capabilities: [40] Power Management version 3
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=1 PME-
Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+
Address: 0000000000000000  Data: 0000
Masking: 00000000  Pending: 00000000
Capabilities: [70] MSI-X: Enable+ Count=64 Masked-
Vector table: BAR=4 offset=00000000
PBA: BAR=4 offset=00002000
Capabilities: [a0] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 512 bytes, PhantFunc 0, Latency L0s <512ns, L1 <64us
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+
DevCtl: Report errors: Correctable- Non-Fatal+ Fatal+ Unsupported+
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ FLReset-
MaxPayload 256 bytes, MaxReadReq 512 bytes
DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr+ TransPend-
LnkCap: Port #2, Speed 5GT/s, Width x8, ASPM L0s, Latency L0 <1us, L1 <8us
ClockPM- Surprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 5GT/s, Width x8, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Range ABCD, TimeoutDis+
DevCtl2: Completion Timeout: 65ms to 210ms, TimeoutDis-
LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -6dB
 Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
 Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -6dB
Capabilities: [e0] Vital Product Data
Unknown small resource type 06, will not decode more.
Capabilities: [100] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt+ UnxCmplt+ RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES- TLP+ FCP+ CmpltTO+ CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC+ UnsupReq- ACSViol-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
CEMsk: RxErr+ BadTLP+ BadDLLP+ Rollover+ Timeout+ NonFatalErr+
AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
Capabilities: [140] Device Serial Number 68-05-ca-ff-ff-0c-7a-e2
Capabilities: [150] Alternative Routing-ID Interpretation (ARI)
ARICap: MFVC- ACS-, Next Function: 1
ARICtl: MFVC- ACS-, Function Group: 0
Capabilities: [160] Single Root I/O Virtualization (SR-IOV)
IOVCap: Migration-, Interrupt Message Number: 000
IOVCtl: Enable+ Migration- Interrupt- MSE+ ARIHierarchy+
IOVSta: Migration-
Initial VFs: 64, Total VFs: 64, Number of VFs: 2, Function Dependency Link: 00
VF offset: 128, stride: 2, Device ID: 10ed
Supported Page Size: 00000553, System Page Size: 00000001
Region 0: Memory at 00000000d5900000 (64-bit, prefetchable)
Region 3: Memory at 00000000d5a00000 (64-bit, prefetchable)
VF Migration: offset: 00000000, BIR: 0
Kernel driver in use: ixgbe
Kernel modules: ixgbe
07:00.1 Ethernet controller: Intel Corporation 82599EB 10 Gigabit TN Network Connection (rev 01)
Subsystem: Intel Corporation Ethernet Server Adapter X520-T2
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, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 40
Region 0: Memory at de600000 (64-bit, non-prefetchable) [size=2M]
Region 2: I/O ports at ece0 [size=32]
Region 4: Memory at de3fc000 (64-bit, non-prefetchable) [size=16K]
Expansion ROM at d5800000 [disabled] [size=1M]
Capabilities: [40] Power Management version 3
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=1 PME-
Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+
Address: 0000000000000000  Data: 0000
Masking: 00000000  Pending: 00000000
Capabilities: [70] MSI-X: Enable+ Count=64 Masked-
Vector table: BAR=4 offset=00000000
PBA: BAR=4 offset=00002000
Capabilities: [a0] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 512 bytes, PhantFunc 0, Latency L0s <512ns, L1 <64us
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+
DevCtl: Report errors: Correctable- Non-Fatal+ Fatal+ Unsupported+
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ FLReset-
MaxPayload 256 bytes, MaxReadReq 512 bytes
DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr+ TransPend-
LnkCap: Port #2, Speed 5GT/s, Width x8, ASPM L0s, Latency L0 <1us, L1 <8us
ClockPM- Surprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 5GT/s, Width x8, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Range ABCD, TimeoutDis+
DevCtl2: Completion Timeout: 65ms to 210ms, TimeoutDis-
LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -6dB
 Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
 Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -6dB
Capabilities: [e0] Vital Product Data
Unknown small resource type 06, will not decode more.
Capabilities: [100] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt+ UnxCmplt+ RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES- TLP+ FCP+ CmpltTO+ CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC+ UnsupReq- ACSViol-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
CEMsk: RxErr+ BadTLP+ BadDLLP+ Rollover+ Timeout+ NonFatalErr+
AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
Capabilities: [140] Device Serial Number 68-05-ca-ff-ff-0c-7a-e2
Capabilities: [150] Alternative Routing-ID Interpretation (ARI)
ARICap: MFVC- ACS-, Next Function: 0
ARICtl: MFVC- ACS-, Function Group: 0
Capabilities: [160] Single Root I/O Virtualization (SR-IOV)
IOVCap: Migration-, Interrupt Message Number: 000
IOVCtl: Enable- Migration- Interrupt- MSE- ARIHierarchy-
IOVSta: Migration-
Initial VFs: 64, Total VFs: 64, Number of VFs: 2, Function Dependency Link: 01
VF offset: 128, stride: 2, Device ID: 10ed
Supported Page Size: 00000553, System Page Size: 00000001
Region 0: Memory at 00000000d5b00000 (64-bit, prefetchable)
Region 3: Memory at 00000000d5b00000 (64-bit, prefetchable)
VF Migration: offset: 00000000, BIR: 0
Kernel driver in use: ixgbe
Kernel modules: ixgbe
 
#modinfo ixgbe
filename:       /lib/modules/2.6.32-279.14.1.el6.x86_64/kernel/drivers/net/ixgbe/ixgbe.ko
version:        3.11.33
license:        GPL
description:    Intel(R) 10 Gigabit PCI Express Network Driver
author:         Intel Corporation, <[email-masked]>
srcversion:     ADDCBFA6FAFE8A0299074F8
alias:          pci:v00008086d0000154Asv*sd*bc*sc*i*
alias:          pci:v00008086d00001557sv*sd*bc*sc*i*
alias:          pci:v00008086d0000154Fsv*sd*bc*sc*i*
alias:          pci:v00008086d0000154Dsv*sd*bc*sc*i*
alias:          pci:v00008086d00001528sv*sd*bc*sc*i*
alias:          pci:v00008086d000010F8sv*sd*bc*sc*i*
alias:          pci:v00008086d0000151Csv*sd*bc*sc*i*
alias:          pci:v00008086d00001529sv*sd*bc*sc*i*
alias:          pci:v00008086d0000152Asv*sd*bc*sc*i*
alias:          pci:v00008086d000010F9sv*sd*bc*sc*i*
alias:          pci:v00008086d00001514sv*sd*bc*sc*i*
alias:          pci:v00008086d00001507sv*sd*bc*sc*i*
alias:          pci:v00008086d000010FBsv*sd*bc*sc*i*
alias:          pci:v00008086d00001517sv*sd*bc*sc*i*
alias:          pci:v00008086d000010FCsv*sd*bc*sc*i*
alias:          pci:v00008086d000010F7sv*sd*bc*sc*i*
alias:          pci:v00008086d00001508sv*sd*bc*sc*i*
alias:          pci:v00008086d000010DBsv*sd*bc*sc*i*
alias:          pci:v00008086d000010F4sv*sd*bc*sc*i*
alias:          pci:v00008086d000010E1sv*sd*bc*sc*i*
alias:          pci:v00008086d000010F1sv*sd*bc*sc*i*
alias:          pci:v00008086d000010ECsv*sd*bc*sc*i*
alias:          pci:v00008086d000010DDsv*sd*bc*sc*i*
alias:          pci:v00008086d0000150Bsv*sd*bc*sc*i*
alias:          pci:v00008086d000010C8sv*sd*bc*sc*i*
alias:          pci:v00008086d000010C7sv*sd*bc*sc*i*
alias:          pci:v00008086d000010C6sv*sd*bc*sc*i*
alias:          pci:v00008086d000010B6sv*sd*bc*sc*i*
depends:        dca
vermagic:       2.6.32-279.14.1.el6.x86_64 SMP mod_unload modversions 
parm:           InterruptType:Change Interrupt Mode (0=Legacy, 1=MSI, 2=MSI-X), default IntMode (deprecated) (array of int)
parm:           IntMode:Change Interrupt Mode (0=Legacy, 1=MSI, 2=MSI-X), default 2 (array of int)
parm:           MQ:Disable or enable Multiple Queues, default 1 (array of int)
parm:           DCA:Disable or enable Direct Cache Access, 0=disabled, 1=descriptor only, 2=descriptor and data (array of int)
parm:           RSS:Number of Receive-Side Scaling Descriptor Queues, default 0=number of cpus (array of int)
parm:           VMDQ:Number of Virtual Machine Device Queues: 0/1 = disable, 2-16 enable (default=8) (array of int)
parm:           max_vfs:Number of Virtual Functions: 0 = disable (default), 1-63 = enable this many VFs (array of int)
parm:           L2LBen:L2 Loopback Enable: 0 = disable, 1 = enable (default) (array of int)
parm:           InterruptThrottleRate:Maximum interrupts per second, per vector, (0,1,956-488281), default 1 (array of int)
parm:           LLIPort:Low Latency Interrupt TCP Port (0-65535) (array of int)
parm:           LLIPush:Low Latency Interrupt on TCP Push flag (0,1) (array of int)
parm:           LLISize:Low Latency Interrupt on Packet Size (0-1500) (array of int)
parm:           LLIEType:Low Latency Interrupt Ethernet Protocol Type (array of int)
parm:           LLIVLANP:Low Latency Interrupt on VLAN priority threshold (array of int)
parm:           FdirPballoc:Flow Director packet buffer allocation level:
1 = 8k hash filters or 2k perfect filters
2 = 16k hash filters or 4k perfect filters
3 = 32k hash filters or 8k perfect filters (array of int)
parm:           AtrSampleRate:Software ATR Tx packet sample rate (array of int)
parm:           FCoE:Disable or enable FCoE Offload, default 1 (array of int)
parm:           LRO:Large Receive Offload (0,1), default 1 = on (array of int)
parm:           allow_unsupported_sfp:Allow unsupported and untested SFP+ modules on 82599 based adapters, default 0 = Disable (array of int)
 
# modinfo ixgbevf
filename:       /lib/modules/2.6.32-279.14.1.el6.x86_64/kernel/drivers/net/ixgbevf/ixgbevf.ko
version:        2.7.12
license:        GPL
description:    Intel(R) 10 Gigabit PCI Express Virtual Function Network Driver
author:         Intel Corporation, <[email-masked]>
srcversion:     4D00B4A5B811D6D07D8BD15
alias:          pci:v00008086d00001515sv*sd*bc*sc*i*
alias:          pci:v00008086d000010EDsv*sd*bc*sc*i*
depends:        
vermagic:       2.6.32-279.14.1.el6.x86_64 SMP mod_unload modversions 
parm:           InterruptThrottleRate:Maximum interrupts per second, per vector, (956-488281), default 8000, use 1 for dynamic (array of int)

# dmidecode -t bios
# dmidecode 2.11
SMBIOS 2.6 present.
Handle 0x0000, DMI type 0, 24 bytes
BIOS Information
        Vendor: Dell Inc.
        Version: 6.3.0
        Release Date: 07/24/2012
        Address: 0xF0000
        Runtime Size: 64 kB
        ROM Size: 4096 kB
        Characteristics:
                ISA is supported
                PCI is supported
                PNP is supported
                BIOS is upgradeable
                BIOS shadowing is allowed
                Boot from CD is supported
                Selectable boot is supported
                EDD is supported
                Japanese floppy for Toshiba 1.2 MB is supported (int 13h)
                5.25"/360 kB floppy services are supported (int 13h)
                5.25"/1.2 MB floppy services are supported (int 13h)
                3.5"/720 kB floppy services are supported (int 13h)
                8042 keyboard services are supported (int 9h)
                Serial services are supported (int 14h)
                CGA/mono video services are supported (int 10h)
                ACPI is supported
                USB legacy is supported
                BIOS boot specification is supported
                Function key-initiated network boot is supported
                Targeted content distribution is supported
        BIOS Revision: 6.3
Handle 0x0D00, DMI type 13, 22 bytes
BIOS Language Information
        Language Description Format: Long
        Installable Languages: 1
                en|US|iso8859-1
        Currently Installed Language: en|US|iso8859-1
 
Jason Gao
--