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XDMA_Install.md

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XDMA Driver Installation Instructions

XDMA kernel driver enables the customers to interact with the optional high-performance DMA engine in the XDMA Shell and/or user-defined interrupts in AWS EC2 F2 instances. For more details about the driver, refer to the XDMA driver page in Xilinx DMA IP driver repository.

Please follow the steps below to install the XDMA driver on AWS EC2 FPGA instances:

  1. Clone the XDMA driver from AMD/Xilinx GitHub repository:

    $ git clone https://github.com/Xilinx/dma_ip_drivers

  2. Add the AFI PCIe Vendor ID and Device ID to XDMA/linux-kernel/xdma/xdma_mod.c by inserting the commented line below to the pci_ids variable definition. For information on locating these PCIe IDs, refer to the HDK development guide.

    static const struct pci_device_id pci_ids[] = {
    { PCI_DEVICE(0x1D0F, 0xF001), },  // Customer defined PCIe Vendor and Device IDs for F2 instance.
    { PCI_DEVICE(0x10ee, 0x9048), },
    { PCI_DEVICE(0x10ee, 0x9044), },
    { PCI_DEVICE(0x10ee, 0x9042), },
    ...
};

  3. Compile the XDMA driver:

    $ cd <DMA_DRIVER_ROOT>/dma_ip_drivers/XDMA/linux-kernel/xdma/
$ make

  4. Insert the module into the kernel:

    $ sudo insmod xdma.ko

  5. Verify the module is successfully loaded:

    $ lsmod | grep xdma
xdma                   86016  0

  6. Verify that files are populated to the XDMA paths in /sys/class/xdma/

    $ ls /sys/class/xdma
xdma0_bypass        xdma0_c2h_0     xdma0_events_1   xdma0_events_12  xdma0_events_15  xdma0_events_4  xdma0_events_7  xdma0_h2c_0
xdma0_bypass_c2h_0  xdma0_control   xdma0_events_10  xdma0_events_13  xdma0_events_2   xdma0_events_5  xdma0_events_8  xdma0_user
xdma0_bypass_h2c_0  xdma0_events_0  xdma0_events_11  xdma0_events_14  xdma0_events_3   xdma0_events_6  xdma0_events_9  xdma0_xvc

  7. Verify that the XDMA driver is bound to the correct device using lspci

    $  lspci -vvs 35:00.0
35:00.0 Memory controller: Amazon.com, Inc. Device f001
Subsystem: Device fedc:1d51
Physical Slot: 3-1
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
NUMA node: 0
Region 0: Memory at 5004c000000 (64-bit, prefetchable) [size=64M]
Region 2: Memory at 50048200000 (64-bit, prefetchable) [size=64K]
Region 4: Memory at 52000000000 (64-bit, prefetchable) [size=128G]
Capabilities: <access denied>
Kernel driver in use: xdma    <--- The XDMA driver has been correctly bound to the card