GTS AXI Streaming Intel® FPGA IP for PCI Express* User Guide

ID 813754
Date 11/04/2024
Public
Document Table of Contents

5.2.2.3.1. PCIe0/PCIe1 Device

Table 32.   GTS AXI Streaming IP Parameters: PCIe* 0/ PCIe* 1 Device Tab
Parameter Value Default Setting Description
Maximum payload size supported
  • 128 Bytes
  • 256 Bytes
  • 512 Bytes
512 Bytes

Sets the read-only value of the max payload size of the Device Capabilities register and optimizes for this payload size.

Function level reset
  • True
  • False
False Enables function level reset. This option is available when Enable multiple physical functions is enabled. It is enabled by default when Enable SR-IOV support is enabled.
Enable multiple physical functions
  • True
  • False
False

Enables multiple physical functions.

When you set Enable multiple physical functions to True, the following option is available:

Total physical functions (PFs)

14 1

Sets the number of physical functions (PFs). The IP can support 1–4 PFs.

Enable SR-IOV support
  • True
  • False
False

Enables the SR-IOV support.

When you set Enable SR-IOV support to True, the following option is available:

Total virtual functions of physical function 0 (PF0 VFs)

0256

Note: 256 is the total virtual functions shared among the physical functions.
0

Sets the number of virtual functions (VFs) to be assigned to the physical functions (PFs).

Example of maximum VFs of the PFs:

If PF0 and PF1 is enabled with PF0 VFs set to 200.

Maximum PF1 VFs = 256 - 200 = 56.

When you set Enable SR-IOV support to True and provide a Total physical functions (PFs) value greater than 1, the following option is available:

Total virtual functions of physical function 1 (PF1 VFs)

0
When you set Enable SR-IOV support to True and provide a Total physical functions (PFs) value greater than 2, the following option is available:

Total virtual functions of physical function 2 (PF2 VFs)

0
When you set Enable SR-IOV support to True and provide a Total physical functions (PFs) value greater than 3, the following option is available:

Total virtual functions of physical function 3 (PF3 VFs)

0