How to invoke pcie functions with nvme linux driver installed in device

bob24 · 04-30-2021, 10:17 AM

I am new to linux device drivers.I am familiar with linux driver code for pcie and nvme. I have loaded linux nvme driver and able to send read, write command through nvme cli. With nvme driver loaded, is there a way to send pcie commads( change speed, lanes) to device. What are the changes to be done to existing nvme driver code? The main objective is to port bunch of pcie testcases to run in parallel with nvme read/writes

computersavvy · 05-01-2021, 10:36 PM

Why not run your test cases and allow the BIOS/OS and existing drivers do their job of handling the low level tasks you are asking about. If the results are not acceptable then talk to the developers of the BIOS and OS as well as the driver developers about your concerns and the in-depth details.