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Date: Tue, 05 Mar 2013 16:03:14 +0100 From: Gaudenz Steinlin <gaudenz@...iologie.ch> To: jyli@...vell.com, iommu@...ts.linux-foundation.org Cc: linux-kernel@...r.kernel.org, Shun Fu <fushun@...vell.com> Subject: Marvell 88NV9143 in mini-PCIe not working with intel_iommu=on [ Sending this to the MVUMI driver authors and the IOMMU list as I can't tell which part is at fault. ] Hi I have a Super Talent CoreStore MV 64GB mini-PCIe SSD in my ThinkPad X200. The SSD works fine when booting with intel_iommu=off, but not if I enable the IOMMU. This is a real PCI device with a Marvel 88NV9143 controller on it (mvumi kernel module), not one of the newer mSATA devices in a mini-PCI form factor. If I boot with the IOMMU enabled, early in the boot the system blocks for a few seconds and then the mvumi driver reports a "failed handshake" (see below). In this case no scsi device for the SSD is available. With the IOMMU disabled everything works as expected. The logs below are for version 3.9.0-rc1. Just to be sure that the problem is still present in the latest kernel. I'm usually running a Debian 3.2.35 kernel, which has the same problem. Here are the relevant bits of dmesg output for the two cases. Just in case I missed something relevant I also attached the full dmesg output to this mail. The lspci information is further down. Please tell me if you need additional information or if you have something else I should try. dmesg mit intel_iommu=on (non-working): [ 0.000000] Linux version 3.9.0-rc1 (gaudenz@...eor) (gcc version 4.7.2 (Debian 4.7.2-5) ) #7 SMP Tue Mar 5 12:31:37 CET 2013 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz-3.9.0-rc1 root=/dev/mapper/main-root ro resume=/dev/main/swap video=i915:modeset=1 acpi_osi=Linux intel_iommu=on splash quiet [ ... ] [ 0.000000] Intel-IOMMU: enabled [ ... ] [ 0.024087] dmar: Host address width 36 [ 0.024090] dmar: DRHD base: 0x000000feb03000 flags: 0x0 [ 0.024098] dmar: IOMMU 0: reg_base_addr feb03000 ver 1:0 cap c9008020e30260 ecap 1000 [ 0.024099] dmar: DRHD base: 0x000000feb01000 flags: 0x0 [ 0.024105] dmar: IOMMU 1: reg_base_addr feb01000 ver 1:0 cap c0000020630260 ecap 1000 [ 0.024106] dmar: DRHD base: 0x000000feb00000 flags: 0x0 [ 0.024111] dmar: IOMMU 2: reg_base_addr feb00000 ver 1:0 cap c0000020630270 ecap 1000 [ 0.024113] dmar: DRHD base: 0x000000feb02000 flags: 0x1 [ 0.024118] dmar: IOMMU 3: reg_base_addr feb02000 ver 1:0 cap c9008020630260 ecap 1000 [ 0.024120] dmar: RMRR base: 0x000000f2925c00 end: 0x000000f29263ff [ 0.024122] dmar: RMRR base: 0x000000bdc00000 end: 0x000000bfffffff [ ... ] [ 0.148516] DMAR: Forcing write-buffer flush capability [ 0.148517] DMAR: Disabling IOMMU for graphics on this chipset [ ... ] [ 4.017463] DMAR: No ATSR found [ 4.017527] IOMMU 2 0xfeb00000: using Register based invalidation [ 4.017529] IOMMU 0 0xfeb03000: using Register based invalidation [ 4.017530] IOMMU 3 0xfeb02000: using Register based invalidation [ 4.017533] IOMMU: Setting RMRR: [ 4.017549] IOMMU: Setting identity map for device 0000:00:1d.0 [0xf2925c00 - 0xf29263ff] [ 4.017575] IOMMU: Setting identity map for device 0000:00:1d.1 [0xf2925c00 - 0xf29263ff] [ 4.017596] IOMMU: Setting identity map for device 0000:00:1d.2 [0xf2925c00 - 0xf29263ff] [ 4.017618] IOMMU: Setting identity map for device 0000:00:1d.7 [0xf2925c00 - 0xf29263ff] [ 4.017638] IOMMU: Setting identity map for device 0000:00:1a.0 [0xf2925c00 - 0xf29263ff] [ 4.017657] IOMMU: Setting identity map for device 0000:00:1a.1 [0xf2925c00 - 0xf29263ff] [ 4.017677] IOMMU: Setting identity map for device 0000:00:1a.2 [0xf2925c00 - 0xf29263ff] [ 4.017697] IOMMU: Setting identity map for device 0000:00:1a.7 [0xf2925c00 - 0xf29263ff] [ 4.017710] IOMMU: Prepare 0-16MiB unity mapping for LPC [ 4.017719] IOMMU: Setting identity map for device 0000:00:1f.0 [0x0 - 0xffffff] [ ... ] [ 4.342079] dmar: DRHD: handling fault status reg 2 [ 4.342132] dmar: DMAR:[DMA Read] Request device [02:00.0] fault addr fffff000 [ 4.342132] DMAR:[fault reason 02] Present bit in context entry is clear [ ... ] [ 34.344078] mvumi 0000:02:00.1: no handshake response at state 0x2. [ 34.344115] mvumi 0000:02:00.1: isr : global=0x0,status=0x0. [ 34.344146] mvumi 0000:02:00.1: handshake failed at state 0x2. [ 34.344266] mvumi: probe of 0000:02:00.1 failed with error -22 dmesg mit intel_iommu=off (working): [ 0.000000] Linux version 3.9.0-rc1 (gaudenz@...eor) (gcc version 4.7.2 (Debian 4.7.2-5) ) #7 SMP Tue Mar 5 12:31:37 CET 2013 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz-3.9.0-rc1 root=/dev/mapper/main-root ro resume=/dev/main/swap video=i915:modeset=1 acpi_osi=Linux intel_iommu=off splash quiet [ ... ] [ 0.024088] dmar: Host address width 36 [ 0.024091] dmar: DRHD base: 0x000000feb03000 flags: 0x0 [ 0.024099] dmar: IOMMU 0: reg_base_addr feb03000 ver 1:0 cap c9008020e30260 ecap 1000 [ 0.024101] dmar: DRHD base: 0x000000feb01000 flags: 0x0 [ 0.024106] dmar: IOMMU 1: reg_base_addr feb01000 ver 1:0 cap c0000020630260 ecap 1000 [ 0.024107] dmar: DRHD base: 0x000000feb00000 flags: 0x0 [ 0.024113] dmar: IOMMU 2: reg_base_addr feb00000 ver 1:0 cap c0000020630270 ecap 1000 [ 0.024114] dmar: DRHD base: 0x000000feb02000 flags: 0x1 [ 0.024119] dmar: IOMMU 3: reg_base_addr feb02000 ver 1:0 cap c9008020630260 ecap 1000 [ 0.024121] dmar: RMRR base: 0x000000f2925c00 end: 0x000000f29263ff [ 0.024123] dmar: RMRR base: 0x000000bdc00000 end: 0x000000bfffffff [ ... ] [ 7.680038] scsi 0:0:0:0: Processor SR64C8MM Flash Console 2037 PQ: 0 ANSI: 3 [ 7.680192] scsi 0:0:0:0: Attached scsi generic sg1 type 3 [ 7.880035] scsi 0:0:1:0: Direct-Access SR64C8MM Flash Disk 2037 PQ: 0 ANSI: 3 [ 7.880203] sd 0:0:1:0: Attached scsi generic sg2 type 0 [ 8.080029] sd 0:0:1:0: [sdb] 104857600 512-byte logical blocks: (53.6 GB/50.0 GiB) [ 8.180025] sd 0:0:1:0: [sdb] Write Protect is off [ 8.180028] sd 0:0:1:0: [sdb] Mode Sense: 17 00 00 00 [ 8.380023] sd 0:0:1:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 8.980085] sdb: sdb1 [ 9.480031] sd 0:0:1:0: [sdb] Attached SCSI disk And the full lspic output for this device: gaudenz@...eor:~$ sudo lspci -vv -nnq -s 02: 02:00.0 Mass storage controller [01ff]: Marvell Technology Group Ltd. Device [1b4b:91f3] Subsystem: Marvell Technology Group Ltd. Device [1b4b:9143] Physical Slot: 0 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 11 Region 0: I/O ports at 2020 [size=8] Region 1: I/O ports at 2014 [size=4] Region 2: I/O ports at 2018 [size=8] Region 3: I/O ports at 2010 [size=4] Region 4: I/O ports at 2000 [size=16] Region 5: Memory at f2500000 (32-bit, non-prefetchable) [size=8K] [virtual] Expansion ROM at f2510000 [disabled] [size=64K] Capabilities: [50] 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=0 PME- Capabilities: [60] MSI: Enable- Count=1/1 Maskable- 64bit+ Address: 0000000000000000 Data: 0000 Capabilities: [80] Express (v2) Legacy Endpoint, MSI 00 DevCap: MaxPayload 512 bytes, PhantFunc 0, Latency L0s <1us, L1 <8us 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 x1, ASPM L0s L1, Latency L0 <512ns, L1 <64us ClockPM- Surprise- LLActRep- BwNot- LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- DevCap2: Completion Timeout: Not Supported, TimeoutDis+ DevCtl2: Completion Timeout: 50us to 50ms, 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: -3.5dB, EqualizationComplete-, EqualizationPhase1- EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest- 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: [140 v1] Virtual Channel Caps: LPEVC=0 RefClk=100ns PATEntryBits=1 Arb: Fixed- WRR32- WRR64- WRR128- Ctrl: ArbSelect=Fixed Status: InProgress- VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans- Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256- Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=01 Status: NegoPending- InProgress- 02:00.1 Mass storage controller [0180]: Marvell Technology Group Ltd. Device [1b4b:9143] (rev 10) Subsystem: Marvell Technology Group Ltd. Device [1b4b:9143] Physical Slot: 0 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 16 Region 0: Memory at f2a00000 (32-bit, prefetchable) [size=1M] [virtual] Expansion ROM at f2520000 [disabled] [size=64K] Capabilities: [50] 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=0 PME- Capabilities: [60] MSI: Enable- Count=1/1 Maskable- 64bit+ Address: 0000000000000000 Data: 0000 Capabilities: [80] Express (v2) Legacy Endpoint, MSI 00 DevCap: MaxPayload 512 bytes, PhantFunc 0, Latency L0s <1us, L1 <8us 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 x1, ASPM L0s L1, Latency L0 <512ns, L1 <64us ClockPM- Surprise- LLActRep- BwNot- LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- DevCap2: Completion Timeout: Not Supported, TimeoutDis+ DevCtl2: Completion Timeout: 50us to 50ms, 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: -3.5dB, EqualizationComplete-, EqualizationPhase1- EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest- 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- Kernel driver in use: mvumi 02:00.2 Non-Volatile memory controller [0108]: Marvell Technology Group Ltd. Device [1b4b:91e3] (prog-if 01) Subsystem: Marvell Technology Group Ltd. Device [1b4b:9143] Physical Slot: 0 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 11 Region 0: Memory at f2502000 (64-bit, non-prefetchable) [size=8K] Region 2: I/O ports at 2028 [size=8] [virtual] Expansion ROM at f2530000 [disabled] [size=64K] Capabilities: [50] 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=0 PME- Capabilities: [60] MSI: Enable- Count=1/1 Maskable- 64bit+ Address: 0000000000000000 Data: 0000 Capabilities: [80] Express (v2) Legacy Endpoint, MSI 00 DevCap: MaxPayload 512 bytes, PhantFunc 0, Latency L0s <1us, L1 <8us 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 x1, ASPM L0s L1, Latency L0 <512ns, L1 <64us ClockPM- Surprise- LLActRep- BwNot- LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- DevCap2: Completion Timeout: Not Supported, TimeoutDis+ DevCtl2: Completion Timeout: 50us to 50ms, 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: -3.5dB, EqualizationComplete-, EqualizationPhase1- EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest- 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- Thanks for your help! Gaudenz View attachment "dmesg_iommu_on.txt" of type "text/plain" (71713 bytes) View attachment "dmesg_iommu_off.txt" of type "text/plain" (71159 bytes) -- Ever tried. Ever failed. No matter. Try again. Fail again. Fail better. ~ Samuel Beckett ~
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