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SubjectRe: [PATCH part1 v6 0/7] Introduce PCIe Device Serial Number capability support
Hi Bjorn,
Sorry to bother you, any comment about this series?

Thanks!
Yijing.

On 2014/2/12 10:52, Yijing Wang wrote:
> v5->v6: Add is_frozen flag to protect pci bus from double frozen.
>
> This series is based on Bjorn's pci-next branch.
> Currently, more and more PCIe devices support PCIe DSN(Device Serial Number)
> capability, we can use this cap to identify device. In some platform,
> when we hotplug PCIe device, no interrupts will be received in system.
> So we can not identify the device whether is changed during suspend.
> PCIe DSN can help to identify this.
>
> Legacy PCI device can achieve it by PCI Vital Product Data capability.
> We can use its SN keyword to report the unique number.
> But in my platform, PCI devices which support VPD SN cap report the
> meaningless same string "0123456789".
> Rework PCI VPD code to support device identification is not an easy work.
> Plan to do it in part2.
>
> Yijing Wang (7):
> PCI: rework pci_find_next_ext_capability()
> PCI: introduce pci_bus_find_ext_capability()
> PCI: Add support for Device Serial Number capability
> PCI: Introduce pci_serial_number_changed()
> PCI: Add pci_dummy_ops to isolate pci device temporarily
> PCI: Check pci device serial number when scan device
> PCI: pciehp: Don't enable/disable slot on resume unless status
> changed
>
> drivers/pci/hotplug/pciehp_core.c | 10 ++-
> drivers/pci/pci.c | 169 +++++++++++++++++++++++++++++++++++--
> drivers/pci/pci.h | 2 +-
> drivers/pci/probe.c | 15 +++-
> include/linux/pci.h | 10 ++-
> 5 files changed, 192 insertions(+), 14 deletions(-)
>
>
>
> .
>


--
Thanks!
Yijing



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