P-Tile Avalon® Streaming Intel® FPGA IP for PCI Express* User Guide

ID 683059
Date 6/20/2022
Public

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5.2.3.2. VirtIO Parameters

To enable VirtIO support, first enable the support for multiple physical functions in the IP Parameter Editor as shown in the following screenshot:

Figure 56. Enable Multifunction Support

Make sure that SR-IOV support is also enabled:

Figure 57. Enable SR-IOV Support

Enable VirtIO support as shown in the screenshot below:

Figure 58. Enable VirtIO Support

Finally, you can configure the appropriate VirtIO capability parameters in the tabs shown in the screenshot below:

Figure 59. Configure VirtIO Capability Parameters

The following table provides a reference for all the configurable high-level parameters of the VirtIO block for P-Tile. Parameters below are dedicated to each core.

Table 89.  VirtIO High-Level Parameters
Parameter Description Allowed Range Default Value
Enable PF VirtIO Enable Physical Function 0-7 VirtIO capability. True/False False
Enable VF VirtIO Enable VirtIO capability of VFs associated with PFs 0-7. True/False False

The next table summarizes the parameters associated with the five VirtIO device configuration structures:

Table 90.  VirtIO Structure PCI Capabilities Parameters
Parameter Description Allowed Range Default Value
PF/VF VirtIO Common Configuration Structure Capability Parameters
PFs 0-7 Common Configuration Structure BAR Indicator Indicates BAR holding the Common Configuration Structure of PFs 0-7. 0-5 0
PFs 0-7 VFs Common Configuration Structure BAR Indicator Indicates BAR holding the Common Configuration Structure of VFs associated with PFs 0-7. 0-5 0
PFs 0-7 Common Configuration Structure Offset within BAR Indicates starting position of Common Config Structure in a given BAR of PFs 0-7. 0-536870911 0
PFs 0-7 VFs Common Configuration Structure BAR Indicator Indicates starting position of Common Config Structure in a given BAR of VFs associated with PFs 0-7. 0-536870911 0
PFs 0-7 Common Configuration Structure Length Indicates length in bytes of Common Config Structure of PFs 0-7. 0-536870911 0
PFs 0-7 VFs Common Configuration Structure Length Indicates length in bytes of Common Config Structure of VFs associated with PFs 0-7. 0-536870911 0
PF/VF VirtIO Notifications Structure Capability Parameters
PFs 0-7 Notifications Structure BAR Indicator Indicates BAR holding the Notifications Structure of PFs 0-7. 0-5 0
PFs 0-7 VFs Notifications Structure BAR Indicator Indicates BAR holding the Notifications Structure of VFs associated with PFs 0-7. 0-5 0
PFs 0-7 Notifications Structure Offset within BAR Indicates starting position of Notifications Structure in given BAR of PFs 0-7. 0-536870911 0
PFs 0-7 VFs Notifications Structure BAR Indicator Indicates starting position of Notifications Structure in given BAR of VFs associated with PFs 0-7. 0-536870911 0
PFs 0-7 Notifications Structure Length Indicates length in bytes of Notifications Structure of PFs 0-7. 0-536870911 0
PFs 0-7 VFs Notifications Structure Length Indicates length in bytes of Notifications Structure of VFs associated with PFs 0-7. 0-536870911 0
PFs 0-7 Notifications Structure Notify Off Multiplier Indicates multiplier for queue_notify_off in Notifications Structure of PFs 0-7. 0-536870911 0
PFs 0-7 VFs Notifications Structure Notify Off Multiplier Indicates multiplier for queue_notify_off in Notifications Structure of VFs associated with PFs 0-7. 0-536870911 0
PF/VF VirtIO ISR Status Structure Capability Parameters
PFs 0-7 ISR Status Structure BAR Indicator Indicates BAR holding the ISR Status Structure of PFs 0-7. 0-5 0
PFs 0-7 VFs ISR Status Structure BAR Indicator Indicates BAR holding the ISR Status Structure of VFs associated with PFs 0-7. 0-5 0
PFs 0-7 ISR Status Structure Offset within BAR Indicates starting position of ISR Status Structure in given BAR of PFs 0-7. 0-536870911 0
PFs 0-7 VFs ISR Status Structure BAR Indicator Indicates starting position of ISR Status Structure in given BAR of VFs associated with PFs 0-7. 0-536870911 0
PFs 0-7 ISR Status Structure Length Indicates length in bytes of ISR Status Structure of PFs 0-7. 0-536870911 0
PFs 0-7 VFs ISR Status Structure Length Indicates length in bytes of ISR Status Structure of VFs associated with PFs 0-7. 0-536870911 0
PF/VF VirtIO Device-Specific Configuration Structure Capability Parameters
Enable PFs 0-7 VirtIO Device Specific Capability Enable PFs 0-7 VirtIO Device-Specific Configuration Structure Capability. True / False False
Enable PFs 0-7 VFs VirtIO Device-Specific Capability Enable VirtIO Device-Specific Configuration Structure Capability of VFs associated with PFs 0-7. True / False False
PFs 0-7 Device-Specific Configuration Structure BAR Indicator

Indicates BAR holding the Device-Specific Configuration Structure of PFs 0-7.

0-5 0
PFs 0-7 VFs Device-Specific Configuration Structure BAR Indicator Indicates BAR holding the Device-Specific Configuration Structure of VFs associated with PFs 0-7. 0-5 0
PFs 0-7 Device-Specific Configuration Structure Offset within BAR Indicates starting position of Device-Specific Configuration Structure in given BAR of PFs 0-7. 0-536870911 0
PFs 0-7 VFs Device-Specific Configuration Structure BAR Indicator Indicates starting position of Device-Specific Configuration Structure in given BAR of VFs associated with PFs 0-7. 0-536870911 0
PFs 0-7 Device-Specific Configuration Structure Length Indicates length in bytes of Device-Specific Configuration Structure of PFs 0-7. 0-536870911 0
PFs 0-7 VFs Device-Specific Configuration Structure Length Indicates length in bytes of Device-Specific Configuration Structure of VFs associated with PFs 0-7. 0-536870911 0

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