PCI: keep ASPM link state consistent throughout PCIe hierarchy

Browse source

In a PCIe hierarchy with a switch present, if the link state of an
endpoint device is changed, we must check the whole hierarchy from the
endpoint device to root port, and for each link in the hierarchy, the new
link state should be configured. Previously, the implementation checked
the state but forgot to configure the links between root port to switch.
Fixes Novell bz #448987.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Tested-by: Andrew Patterson <andrew.patterson@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

...

This commit is contained in:

Shaohua Li 2008-12-19 09:27:42 +08:00 • committed by Jesse Barnes

parent 2b8c2efe44

commit 46bbdfa44c

1 changed files with 106 additions and 19 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

129

drivers/pci/pcie/aspm.c

View file