我有一个新的英特尔X540-T1networking适配器。 我从英特尔安装了最新的ixgbe-4.1.5驱动程序。 该卡能够从DHCP获取IP地址。 但是，使用apt-get查看网站和安装软件包的速度非常慢，BitTorrent只是不连接。 例如，我用apt-get下载了Webmin，看它是否有帮助。 在apt-get终于能够parsing域名之前花了几次尝试，然后花了几分钟的时间下载〜20 megs。 但是，通常这样的下载需要一分钟左右（我连接到一个快速的大学局域网连接）。
有什么想法吗？ 可能一些ixgbe模块的参数有帮助，如果有的话，哪一个？
我没有search。 这个问题不适用于我的情况： intel-nic-x540-t1-non-functional-in-Ubuntu-server-12-04 。
注意：在下面的输出时，没有与10GigE适配器关联的IP，否则我将无法在此站点上。
一些输出：
$ uname -a Linux localhost 3.13.0-66-generic #108-Ubuntu SMP Wed Oct 7 15:20:27 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux $ ifconfig p1p1 p1p1 Link encap:Ethernet HWaddr a0:36:9f:75:5c:ca UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) $ ethtool -i p1p1 driver: ixgbe version: 3.15.1-k firmware-version: 0x8000037c bus-info: 0000:01:00.0 supports-statistics: yes supports-test: yes supports-eeprom-access: yes supports-register-dump: yes supports-priv-flags: no $ sudo lspci -vvnns 01:00.0 01:00.0 Ethernet controller [0200]: Intel Corporation Ethernet Controller 10-Gigabit X540-AT2 [8086:1528] (rev 01) Subsystem: Intel Corporation Ethernet Converged Network Adapter X540-T1 [8086:0002] Physical Slot: 2 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 26 Region 0: Memory at f2200000 (64-bit, prefetchable) [size=2M] Region 4: Memory at f2400000 (64-bit, prefetchable) [size=16K] Expansion ROM at fb100000 [disabled] [size=512K] 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 #0, Speed 5GT/s, Width x8, ASPM L0s L1, Exit Latency L0s <1us, L1 <8us ClockPM- Surprise- LLActRep- BwNot- LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 5GT/s, Width x8, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- DevCap2: Completion Timeout: Range ABCD, TimeoutDis+, LTR-, OBFF Not Supported DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis- Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- Compliance De-emphasis: -6dB LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1- EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest- Capabilities: [100 v2] 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 v1] Device Serial Number a0-36-9f-ff-ff-75-5c-ca Capabilities: [150 v1] Alternative Routing-ID Interpretation (ARI) ARICap: MFVC- ACS-, Next Function: 0 ARICtl: MFVC- ACS-, Function Group: 0 Capabilities: [160 v1] 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: 0, Function Dependency Link: 00 VF offset: 128, stride: 2, Device ID: 1515 Supported Page Size: 00000553, System Page Size: 00000001 Region 0: Memory at 00000000fb280000 (64-bit, non-prefetchable) Region 3: Memory at 00000000fb180000 (64-bit, non-prefetchable) VF Migration: offset: 00000000, BIR: 0 Capabilities: [1d0 v1] Access Control Services ACSCap: SrcValid- TransBlk- ReqRedir- CmpltRedir- UpstreamFwd- EgressCtrl- DirectTrans- ACSCtl: SrcValid- TransBlk- ReqRedir- CmpltRedir- UpstreamFwd- EgressCtrl- DirectTrans- Kernel driver in use: ixgbe $ lsmod | grep ixg ixgbe 233377 0 dca 15130 2 igb,ixgbe ptp 18933 2 igb,ixgbe mdio 13807 1 ixgbe $ modinfo ixgbe filename: /lib/modules/3.13.0-66-generic/kernel/drivers/net/ethernet/intel/ixgbe/ixgbe.ko version: 4.1.5 license: GPL description: Intel(R) 10 Gigabit PCI Express Network Driver author: Intel Corporation, <[email protected]> srcversion: 9781CEF8A3110F93FF9DBA8 alias: pci:v00008086d000015ADsv*sd*bc*sc*i* alias: pci:v00008086d00001560sv*sd*bc*sc*i* alias: pci:v00008086d00001558sv*sd*bc*sc*i* 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: ptp,dca,vxlan vermagic: 3.13.0-66-generic 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: VEPA:VEPA Bridge Mode: 0 = VEB (default), 1 = VEPA (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) parm: dmac_watchdog:DMA coalescing watchdog in microseconds (0,41-10000), default 0 = off (array of int) parm: vxlan_rx:VXLAN receive checksum offload (0,1), default 1 = Enable (array of int)
在黑暗中拍摄，这个问题是相当古老的，但你有ip转发启用（是吗？）或者你是否与桥接工具（看起来不是）？ 尝试禁用LRO。
从英特尔发布说明：
警告：ixgbe驱动程序支持大接收卸载（LRO）function。 此选项为接收提供最低的CPU利用率，但与路由/ IP转发和桥接完全不兼容。 如果需要启用IP转发或桥接，则需要使用本文后面的LRO部分中提到的编译时间选项禁用LRO。 与IP转发或桥接结合使用时不禁用LRO的结果可能是吞吐量低，甚至是内核恐慌。