RE: [PATCH v2 22/22] wifi: rtw88: Enable the new RTL8821AU/RTL8812AU drivers

[Ping-Ke Shih <pkshih@realtek.com>]

Bitterblue Smith <rtl8821cerfe2@gmail.com> wrote:
> These are older Wifi 5 chips. RTL8821AU is 1x1, with or without
> Bluetooth. RTL8812AU is 2x2, without Bluetooth.
> 
> Beamforming is not implemented. It looks like these chips need a
> different implementation than what is in bf.c.
> 
> Speed tests with RTL8821AU: 137 Mbps download, 144 Mbps upload.
> Speed tests with RTL8812AU: 344 Mbps download, 387 Mbps upload.
> 
> Station mode and AP mode were tested.
> 
> Bluetooth coexistence works. I used my Bluetooth headphones for
> several days, listening to music and watching videos. There is only
> a problem with the wifi speeds with one router:
> 
> With ISP's HG6544C router:
> Official driver: 3/5 Mbps.
> rtw88: a bit more, but not steady at all. Not enough to watch a 1080p
> Youtube video.
> 
> With my D-Link Eagle R32 router running Openwrt, on the same channel:
> Official driver: 6/10 Mbps.
> rtw88: download starts around 30, climbs to 50 / upload is 10 Mbps.
> I can watch a 1080p Youtube video.
> 
> The music doesn't cut out during any speed tests.
> 
> I also tested transferring files to and from my phone. I don't have
> other types of Bluetooth devices to test.
> 

Really good work. Only some minor suggestions for v2.


> @@ -189,6 +200,28 @@ config RTW88_8821CU
> 
>           802.11ac USB wireless network adapter
> 
> +config RTW88_8821AU
> +       tristate "Realtek 8821AU USB wireless network adapter"

Also mention 8811AU?

> +       depends on USB
> +       select RTW88_CORE
> +       select RTW88_USB
> +       select RTW88_8821A
> +       help
> +         Select this option will enable support for 8821AU chipset
> +
> +         802.11ac USB wireless network adapter
> +