Re: [PATCH v3 4/4] wifi: ath12k: Connect to the QMI server belonging to the device owned by this driver

[Raj Kumar Bhagat]

On 22-09-2026 19:11, Manivannan Sadhasivam via B4 Relay wrote:
> From: Manivannan Sadhasivam<manivannan.sadhasivam@xxxxxxxxxxxxxxxx>
>
> When two identical ath12k PCIe devices are connected to the same host, both
> advertise the WLFW service with the same service and instance id. The QMI
> lookup reports both servers to each device, so a device may connect to the
> firmware running on the other device.
>
> But now, QRTR provides each MHI endpoint a unique node id which is
> different from the node id announced by the device. So use the same id to
> pick the correct server. Add a get_qrtr_node_id() HIF callback that returns
> the node id derived from the MHI controller index and zero for transports
> that do not assign one. In the new_server callback, skip any service whose
> node id does not match. A node id of zero disables the check, so transports
> that do not assign one keep their current behavior.
>
> Tested-on: 2x WCN7850 hw2.0 WLAN.IOE_HMT.1.1-00018-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1
> Tested-on: 1x WCN6855 ath11k + 1x WCN7850 ath12k
>
> Tested-by: Juha-Matti Tilli<juha-matti.tilli@xxxxxx>
> Reviewed-by: Vasanthakumar Thiagarajan<vasanthakumar.thiagarajan@xxxxxxxxxxxxxxxx>
> Signed-off-by: Manivannan Sadhasivam<manivannan.sadhasivam@xxxxxxxxxxxxxxxx>

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.6-01243-QCAHKSWPL_SILICONZ-1
Tested-by: Raj Kumar Bhagat <raj.bhagat@xxxxxxxxxxxxxxxx>

Validated in ipq9574-rdp433 with three QCN9274 PCIe devices.