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Date: Wed, 8 Oct 2014 17:50:24 -0700 (PDT) From: Eric Wheeler <netdev@...ts.ewheeler.net> To: Rasesh Mody <rasesh.mody@...gic.com> cc: Eric Dumazet <eric.dumazet@...il.com>, Shahed Shaikh <shahed.shaikh@...gic.com>, Stephen Hemminger <stephen@...workplumber.org>, netdev <netdev@...r.kernel.org> Subject: RE: [PATCH net] bna: page allocation during interrupts to use a mempool. On Wed, 8 Oct 2014, Rasesh Mody wrote: > Hi Eric Wheeler, Eric Dumazet, > > We'll try to reproduce the issue in-house to find more about the root > cause of the failure and work on possible solution. Thanks Rasesh, FYI, we're using the Ethernet part this card (no FCoE use here); I believe it is the 1020 version: 02:00.0 Fibre Channel: Brocade Communications Systems, Inc. 1010/1020/1007/1741 10Gbps CNA (rev 01) 02:00.1 Fibre Channel: Brocade Communications Systems, Inc. 1010/1020/1007/1741 10Gbps CNA (rev 01) 02:00.2 Ethernet controller: Brocade Communications Systems, Inc. 1010/1020/1007/1741 10Gbps CNA (rev 01) 02:00.3 Ethernet controller: Brocade Communications Systems, Inc. 1010/1020/1007/1741 10Gbps CNA (rev 01) 02:00.2 Ethernet controller: Brocade Communications Systems, Inc. 1010/1020/1007/1741 10Gbps CNA (rev 01) Subsystem: Brocade Communications Systems, Inc. 1010/1020/1007/1741 10Gbps CNA - LL 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 19 Region 0: Memory at df540000 (64-bit, non-prefetchable) [size=256K] Region 2: Memory at df604000 (64-bit, non-prefetchable) [size=16K] Expansion ROM at df200000 [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-X: Enable+ Count=256 Masked- Vector table: BAR=2 offset=00000000 PBA: BAR=2 offset=00002000 Capabilities: [60] Express (v2) Endpoint, MSI 00 DevCap: MaxPayload 2048 bytes, PhantFunc 0, Latency L0s <256ns, L1 <64us ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset- DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+ MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr- TransPend- LnkCap: Port #0, Speed 5GT/s, Width x8, ASPM L0s, Latency L0 <256ns, L1 <64us ClockPM- Surprise- LLActRep- BwNot- LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 5GT/s, Width x4, 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 LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1- EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest- Capabilities: [a0] Vital Product Data No end tag found Capabilities: [100 v1] 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: [180 v1] Power Budgeting <?> Capabilities: [190 v1] Alternative Routing-ID Interpretation (ARI) ARICap: MFVC- ACS-, Next Function: 3 ARICtl: MFVC- ACS-, Function Group: 0 Kernel driver in use: bna Kernel modules: bna -- Eric Wheeler, President eWheeler, Inc. dba Global Linux Security 888-LINUX26 (888-546-8926) Fax: 503-716-3878 PO Box 25107 www.GlobalLinuxSecurity.pro Linux since 1996! Portland, OR 97298 > > Thanks, > -Rasesh -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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