Xavier to xavier share memory mode

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Xavier
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In shared memory mode, it can work normally, sudo lspci -vvv can detect the device, and according to the documentation, it can read and write data normally.

  1. How to expand BAR0_SIZE to 1G or 2G ？
  2. Only 32 bits of data can be written each time. Is it possible to increase the size of each write to 64KB or 1 MB ?
  3. How to test read and write speed ？

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We actually use pci_epf_nv_test.c to do the test. The BAR0_SIZE in this code would decide the BAR0_SIZE.

Q2 sounds not available

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default shared memory is only 64k. Can the size of the shared memory be modified by just change BAR0_SIZE? do not need to modify other files?

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