On 20.12.2024 10:47 PM, Jeff Johnson wrote: > On 12/20/2024 12:03 PM, Konrad Dybcio wrote: >> On 5.11.2024 7:04 PM, Raj Kumar Bhagat wrote: >>> The QCN9274 WiFi device supports WSI (WLAN Serial Interface). WSI is used >>> to exchange specific control information across radios using a doorbell >>> mechanism. This WSI connection is essential for exchanging control >>> information among these devices. The WSI interface in the QCN9274 includes >>> TX and RX ports, which are used to connect multiple WSI-supported devices >>> together, forming a WSI group. >>> >>> Describe QCN9274 PCI wifi device with WSI interface. >>> >>> Signed-off-by: Raj Kumar Bhagat <quic_rajkbhag@xxxxxxxxxxx> >>> --- >> >> I think this description is missing the key points: >> >> * what is that control information (power, data, radio stuff?) >> * what happens when the OS is unaware of all of this (i.e. what happens when >> we don't send any configuration) >> * is this configurable, or does this describe a physical wiring topology >> (what/who decides which of the group configurations detailed below take >> effect) >> >> And the ultimate question: >> * can the devices not just talk among themselves and negotiate that? >> >> Though AFAICU PCIe P2P communication is a shaky topic, so perhaps the answer >> to the last question is 'no' >> >> Konrad > > We already pushed the non-RFC version to our -next tree so we cannot update > the commit description without a forced push. > > https://lore.kernel.org/all/20241211153432.775335-2-kvalo@xxxxxxxxxx/ > > However, Raj Kumar can submit an update to the description in the file, which > is probably the better place to have this information anyway. Sounds good Konrad
