On Mon, 2017-04-10 at 19:04 -0700, IanJiang wrote: > Thanks for your replay. > > I fixed my test according your suggestion. The CPU physical addresses (0x > 1f9e400000 and 0x 1f82c00000) converted with virt_to_phys() are used , > instead of DMA addresses, or BUS physical addresses (0x 60a00000 and 0x > 60c00000). However, EEH still reports error.
That's incorrect. The system has an IOMMU, only addressed properly mapped/translated by the IOMMU can be used for DMA. That is addresses returned by things like dma_map_single/sg, dma_alloc_coherent, etc... You also need to ensure you configure a proper dma mask. Using virt_to_phys() is NEVER correct on *any* architecture. Cheers, Ben. > Memory info. > ========== > > [130508.050783] Plx8000_NT: Received PLX message ===> > [130508.050784] Plx8000_NT: PLX_IOCTL_PHYSICAL_MEM_ALLOCATE > [130508.050785] Plx8000_NT: Attempt to allocate physical memory (1953KB) > [130508.051165] Plx8000_NT: Allocated physical memory... > [130508.051167] Plx8000_NT: CPU Phys Addr: 1f9e400000 > [130508.051168] Plx8000_NT: Bus Phys Addr: 60a00000 > [130508.051170] Plx8000_NT: Kernel VA : c000001f9e400000 > [130508.051171] Plx8000_NT: Size : 1E8480h (1MB) > [130508.051173] Plx8000_NT: ...Completed message > [130508.051184] Plx8000_NT: > [130508.051185] Plx8000_NT: Received message ===> MMAP > [130508.051187] Plx8000_NT: Mapped Phys (1f9e400000) ==> User VA > (3fff83ad0000) > [130508.051189] Plx8000_NT: ...Completed message > [130508.051196] Plx8000_NT: > [130508.051198] Plx8000_NT: Received PLX message ===> > [130508.051199] Plx8000_NT: PLX_IOCTL_PHYSICAL_MEM_ALLOCATE > [130508.051200] Plx8000_NT: Attempt to allocate physical memory (1953KB) > [130508.051562] Plx8000_NT: Allocated physical memory... > [130508.051564] Plx8000_NT: CPU Phys Addr: 1f82c00000 > [130508.051565] Plx8000_NT: Bus Phys Addr: 60c00000 > [130508.051566] Plx8000_NT: Kernel VA : c000001f82c00000 > [130508.051568] Plx8000_NT: Size : 1E8480h (1MB) > [130508.051569] Plx8000_NT: ...Completed message > [130508.051580] Plx8000_NT: > [130508.051581] Plx8000_NT: Received message ===> MMAP > [130508.051583] Plx8000_NT: Mapped Phys (1f82c00000) ==> User VA > (3fff838e0000) > [130508.051585] Plx8000_NT: ...Completed message > [130508.051600] Plx8000_NT: > > EEH info. > ======== > > [130515.365924] Plx8000_DMA: Received PLX message ===> > [130515.365972] Plx8000_DMA: PLX_IOCTL_DMA_TRANSFER_BLOCK > [130515.366033] PLX DMA[PlxDmaTransferBlock-2479] > [130515.366084] PLX DMA[PlxDmaTransferBlock-2488] > [130515.366131] PLX DMA[PlxDmaTransferBlock-2495] > [130515.366181] Plx8000_DMA: Ch 0 - DMA 0000001F_9E400000 --> > 0000001F_82C00000 (65536 bytes) > [130515.366250] PLX DMA[PlxDmaTransferBlock-2503] > [130515.366296] PLX DMA[PlxDmaTransferBlock-2511] > [130515.366343] PLX DMA[PlxDmaTransferBlock-2516] > [130515.366392] PLX DMA[PlxDmaTransferBlock-2521] > [130515.366440] PLX DMA[PlxDmaTransferBlock-2532] > [130515.366487] PLX DMA[PlxDmaTransferBlock-2535] > [130515.366537] PLX DMA[PlxDmaTransferBlock-2539] > [130515.366584] PLX DMA[PlxDmaTransferBlock-2550] > [130515.366632] PLX DMA[PlxDmaTransferBlock-2557] > [130515.366681] PLX DMA[PlxDmaTransferBlock-2562] > [130515.366728] Plx8000_DMA: Start DMA transfer... > [130515.366775] PLX DMA[PlxDmaTransferBlock-2565] > [130515.366826] PLX DMA[PlxDmaTransferBlock-2569] > [130515.366868] EEH: Frozen PE#1 on PHB#1 detected > [130515.366872] EEH: PE location: Slot4, PHB location: N/A > [130515.367997] EEH: This PCI device has failed 1 times in the last hour > [130515.367997] EEH: Notify device drivers to shutdown > [130515.368006] EEH: Collect temporary log > [130515.368072] EEH: of node=0001:01:00:0 > [130515.368075] EEH: PCI device/vendor: 861910b5 > [130515.368077] EEH: PCI cmd/status register: 00100547 > [130515.368079] EEH: Bridge secondary status: 0000 > [130515.368081] EEH: Bridge control: 0002 > [130515.368081] EEH: PCI-E capabilities and status follow: > [130515.368091] EEH: PCI-E 00: 0052a410 00008004 00000046 0000cc82 > [130515.368098] EEH: PCI-E 10: 00820000 00000000 00000000 00000000 > [130515.368099] EEH: PCI-E 20: 00000000 > [130515.368100] EEH: PCI-E AER capability register set follows: > [130515.368109] EEH: PCI-E AER 00: 13810001 00000000 00000000 00062030 > [130515.368116] EEH: PCI-E AER 10: 00000000 00002000 000000ff 00000000 > [130515.368122] EEH: PCI-E AER 20: 00000000 00000000 00000000 00000000 > [130515.368125] EEH: PCI-E AER 30: 00000000 0e0e0e0e > [130515.368127] EEH: of node=0001:01:00:1 > [130515.368294] Plx8000_DMA: ...Completed message > [130515.368295] PLX DMA[Dispatch_IoControl-1053] > [130515.368295] PLX DMA[Dispatch_IoControl-1061] > [130515.368297] Plx8000_DMA: > [130515.368298] Plx8000_DMA: Received PLX message ===> > [130515.368298] Plx8000_DMA: PLX_IOCTL_NOTIFICATION_WAIT > [130515.368299] Plx8000_DMA: Waiting for Interrupt wait object > (c000003c0705f880) to wake-up > [130515.369283] EEH: PCI device/vendor: 861910b5 > [130515.369336] EEH: PCI cmd/status register: 10100546 > [130515.369384] EEH: PCI-E capabilities and status follow: > [130515.369440] EEH: PCI-E 00: 0002a410 00008fe4 0020204e 0000cc82 > [130515.369506] EEH: PCI-E 10: 00820000 00000000 00000000 00000000 > [130515.369564] EEH: PCI-E 20: 00000000 > [130515.393162] EEH: PCI-E AER capability register set follows: > [130515.420590] EEH: PCI-E AER 00: 1f410001 00000000 00000000 00062030 > [130515.441475] EEH: PCI-E AER 10: 00000000 00002000 000001ff 00000000 > [130515.454700] EEH: PCI-E AER 20: 00000000 00000000 00000000 00000000 > [130515.469331] EEH: PCI-E AER 30: 00000000 00000000 > [130515.488728] EEH: of node=0001:02:01:0 > [130515.502865] EEH: PCI device/vendor: 861910b5 > [130515.516637] EEH: PCI cmd/status register: 00100546 > [130515.536602] EEH: PCI-E capabilities and status follow: > [130515.536659] EEH: PCI-E 00: 0002a410 00008fc4 0000004e 0100cc82 > [130515.552999] EEH: PCI-E 10: 00420000 00000000 00000000 00000000 > [130515.569904] EEH: PCI-E 20: 00000000 > [130515.594771] EEH: PCI-E AER capability register set follows: > [130515.623612] EEH: PCI-E AER 00: 14810001 00000000 00000000 00062030 > [130515.646365] EEH: PCI-E AER 10: 00000000 00002000 000001ff 00000000 > [130515.675020] EEH: PCI-E AER 20: 00000000 00000000 00000000 00000000 > [130515.722944] EEH: PCI-E AER 30: 00000000 00000000 > [130515.722994] PHB3 PHB#1 Diag-data (Version: 1) > [130515.777673] brdgCtl: 00000002 > [130515.837348] RootSts: 0002004f 00400000 f0820008 00100147 00002800 > [130515.862070] RootErrSts: 00000000 00008000 00000000 > [130515.910110] PhbSts: 0000001c00000000 0000001c00000000 > [130515.927288] Lem: 0000000008000000 42498e327f502eae > 0000000000000000 > [130515.954319] InAErr: 0000000100000000 0000000100000000 > 0e0c010100000800 0000001f9e400000 > [130515.987234] PE[ 1] A/B: 8200802401010000 8000001f9e400000 > [130516.000681] EEH: Enable I/O for affected devices > [130516.008885] EEH: Notify device drivers to resume I/O > [130516.028718] EEH: Enabled DMA for affected devices > [130516.059665] EEH: Notify device driver to resume > [130518.366890] Plx8000_DMA: Timeout waiting for interrupt > [130518.367090] Plx8000_DMA: ...Completed message > > > > > -- > View this message in context: > http://linuxppc.10917.n7.nabble.com/EEH-error-in-doing-DMA-with-PEX-8619-tp121121p121154.html > Sent from the linuxppc-dev mailing list archive at Nabble.com.
