Single wiphy design for Onewifi/rdk-wifi-hal

• 2Scope
• 3Background
• 4Block diagram
• 5Assumption:
• 6Low Level Design Changes
• 7References

Scope

• Design and implement and test single wiphy design for Onewifi

Background

By default Banana Pi R4 uses official supported BE14 wifi7 card from Banana Pi. Driver for BE 14 card is designed in such a way that all the wireless radios (2.4G/5G/6g) are mapped under single phy for supporting MLO in Wi-Fi 7. However, current rdk-wifi-hal associated with Onewifi is not supporting this mechanism. 

RDKM In collaboration with comcast will design Single wiphy use case for Onewifi/rdk-wifi-hal/hostap. This page will capture the design changes to achieve this.

Block diagram

Assumption:

The radio_interface_mapping_t structure part of wifi_hal_generic.h is used to define the mapping of phy to a particular radio along with the primary interface. Structure declaration is as below:

typedef struct {
    unsigned int phy_index;
    unsigned int radio_index;
    char radio_name[16]; 
    wifi_interface_name_t interface_name;
}__attribute__((packed)) radio_interface_mapping_t;

Low Level Design Changes

References

• PoC to create interfaces under single Phy using netlink - https://github.com/cpokuru/NetlinkApis/tree/main