Re: [PATCH 0/5] PCI: endpoint: Add support for additional notifiers

From: Om Prakash Singh
Date: Wed Jun 16 2021 - 15:12:24 EST


Hi Mani,
Adding more notifier types will surely help but I believe the list is not exhaustive. What you are trying here is to pass various vendor-specific epc interrupts to EPF driver. That can be taken care by a single notifier interface as well, "pci_epc_custom_notify" from your implementation. This also requires to have pre-defined values of "data" argument to standardize the interface.

your thoughts?

Thanks,
Om

On 6/16/2021 5:29 PM, Manivannan Sadhasivam wrote:
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Hello,

This series adds support for additional notifiers in the PCI endpoint
framework. The notifiers LINK_DOWN, BME, PME, and D_STATE are generic
for all PCI endpoints but there is also a custom notifier (CUSTOM) added
to pass the device/vendor specific events to EPF from EPC.

The example usage of all notifiers is provided in the commit description.

Thanks,
Mani

Manivannan Sadhasivam (5):
PCI: endpoint: Add linkdown notifier support
PCI: endpoint: Add BME notifier support
PCI: endpoint: Add PME notifier support
PCI: endpoint: Add D_STATE notifier support
PCI: endpoint: Add custom notifier support

drivers/pci/endpoint/pci-epc-core.c | 89 +++++++++++++++++++++++++++++
include/linux/pci-epc.h | 5 ++
include/linux/pci-epf.h | 5 ++
3 files changed, 99 insertions(+)

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2.25.1