On Tue, Jun 06, 2023 at 02:22:27PM -0700, Jakub Kicinski wrote: > On Tue, 6 Jun 2023 18:01:16 +0530 Manivannan Sadhasivam wrote: > > This series adds a network driver for the Modem Host Interface (MHI) endpoint > > devices that provides network interfaces to the PCIe based Qualcomm endpoint > > devices supporting MHI bus (like Modems). This driver allows the MHI endpoint > > devices to establish IP communication with the host machines (x86, ARM64) over > > MHI bus. > > > > On the host side, the existing mhi_net driver provides the network connectivity > > to the host. > > So the host can talk to the firmware over IP? That's the typical usecase of these PCIe based modems. On the host, mhi_net driver creates the network interface that communicates with the endpoint over MHI host stack. On the endpoint, mhi_ep_net driver creates the network interface that communicates with the host over MHI endpoint stack. These drivers work on top of MHI channels like IP_SW0, IP_HW0 etc... IP_SW0 channel represents the IP communication between host and modem CPUs while IP_HW0 represents IP communication between host and modem DSP. - Mani -- மணிவண்ணன் சதாசிவம்
