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. /jeff
