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DPDK: Difference between revisions
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The [https://www.dpdk.org/ Data Plane Development Kit], a Linux Foundation effort, makes robust userspace Linux networking more or less available to the common hax0r. | The [https://www.dpdk.org/ Data Plane Development Kit], a Linux Foundation effort, makes robust userspace Linux networking more or less available to the common hax0r. | ||
== | ==Pollmode driver== | ||
You'll need either a UIO or a VFIO module loaded. VFIO [https://lwn.net/Articles/474088/ is preferable], as it can drive the IOMMU. This is the <tt>vfio-pci</tt> driver. If your system can't work with VFIO, the <tt>uio_pci_generic</tt> or <tt>igb_uio</tt> modules can be employed. | You'll need either a UIO or a VFIO module loaded. VFIO [https://lwn.net/Articles/474088/ is preferable], as it can drive the IOMMU. This is the <tt>vfio-pci</tt> driver. If your system can't work with VFIO, the <tt>uio_pci_generic</tt> or <tt>igb_uio</tt> modules can be employed (the latter is, I believe, specifically for Intel Gigabit NICs). If VFIO is not used, the IOMMU must be disabled, or configured in passthrough mode. | ||
To see physical devices and their bindings, run <tt>dpdk-devbind.py --status</tt>: | |||
<pre> | |||
[schwarzgerat](0) $ dpdk-devbind.py --status | |||
Network devices using kernel driver | |||
=================================== | |||
0000:43:00.0 'I211 Gigabit Network Connection 1539' if=igb drv=igb unused=vfio-pci *Active* | |||
0000:44:00.0 'AQC111 NBase-T/IEEE 802.3bz Ethernet Controller [AQtion] 11b1' if=aq5 drv=atlantic unused=vfio-pci *Active* | |||
0000:45:00.0 'Wi-Fi 6 AX200 2723' if=ax200 drv=iwlwifi unused=vfio-pci *Active* | |||
Crypto devices using kernel driver | |||
================================== | |||
0000:23:00.1 'Starship/Matisse Cryptographic Coprocessor PSPCPP 1486' drv=ccp unused=vfio-pci | |||
[schwarzgerat](0) $ | |||
</pre> | |||
Revision as of 14:31, 22 April 2021
The Data Plane Development Kit, a Linux Foundation effort, makes robust userspace Linux networking more or less available to the common hax0r.
Pollmode driver
You'll need either a UIO or a VFIO module loaded. VFIO is preferable, as it can drive the IOMMU. This is the vfio-pci driver. If your system can't work with VFIO, the uio_pci_generic or igb_uio modules can be employed (the latter is, I believe, specifically for Intel Gigabit NICs). If VFIO is not used, the IOMMU must be disabled, or configured in passthrough mode.
To see physical devices and their bindings, run dpdk-devbind.py --status:
[schwarzgerat](0) $ dpdk-devbind.py --status Network devices using kernel driver =================================== 0000:43:00.0 'I211 Gigabit Network Connection 1539' if=igb drv=igb unused=vfio-pci *Active* 0000:44:00.0 'AQC111 NBase-T/IEEE 802.3bz Ethernet Controller [AQtion] 11b1' if=aq5 drv=atlantic unused=vfio-pci *Active* 0000:45:00.0 'Wi-Fi 6 AX200 2723' if=ax200 drv=iwlwifi unused=vfio-pci *Active* Crypto devices using kernel driver ================================== 0000:23:00.1 'Starship/Matisse Cryptographic Coprocessor PSPCPP 1486' drv=ccp unused=vfio-pci [schwarzgerat](0) $
