[pcimem]: Add pcimem Utility #12125
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[pcimem]: Add pcimem Utility #12125
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The pcimem application provides a simple method of reading and writing to memory registers on a PCI device. The code used is from https://github.com/billfarrow/pcimem Signed-off-by: Ashwin H Ashwin.H@amd.com
ashwin-h
requested review from
qiluo-msft,
xumia and
lguohan
as code owners
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@qiluo-msft @xumia @lguohan could you pls review the PR ? |
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The pcimem application provides a simple method of reading and writing to memory registers on a PCI device.
The code used is from https://github.com/billfarrow/pcimem
Signed-off-by: Ashwin H Ashwin.H@amd.com
Why I did it
We need a utility to read/write to memory regions on a PCI device.
How I did it
reused the code from https://github.com/billfarrow/pcimem and created a debian pkg.
How to verify it
Installed the debian pkg on switch and verified that pcimem is working fine
For ex: To read memory offset 0 on a pci device
sudo pcimem /sys/bus/pci/devices/0000\:12\:00.1/resource0 0To write value 6 at offset 4 on a pci device
sudo pcimem /sys/bus/pci/devices/0000\:12\:00.1/resource0 4 w 6Which release branch to backport (provide reason below if selected)
Description for the changelog
Ensure to add label/tag for the feature raised. example - PR#2174 where, Generic Config and Update feature has been labelled as GCU.
Link to config_db schema for YANG module changes
A picture of a cute animal (not mandatory but encouraged)