Bitterblue Smith <rtl8821cerfe2@xxxxxxxxx> wrote: > Currently the number of frames sent to the chip in a single USB Request > Block is limited only by the size of the TX buffer, which is 20 KiB. > Testing reveals that as many as 13 frames get aggregated. This is more > than what any of the chips would like to receive. RTL8822CU, RTL8822BU, > and RTL8821CU want at most 3 frames, and RTL8723DU wants only 1 frame > per URB. > > RTL8723DU in particular reliably malfunctions during a speed test if it > receives more than 1 frame per URB. All traffic seems to stop. Pinging > the AP no longer works. > > Fix this problem by limiting the number of frames sent to the chip in a > single URB according to what each chip likes. > > Also configure RTL8822CU, RTL8822BU, and RTL8821CU to expect 3 frames > per URB. > > RTL8703B may or may not be found in USB devices. Declare that it wants > only 1 frame per URB, just in case. > > Tested with RTL8723DU and RTL8811CU. > > Cc: stable@xxxxxxxxxxxxxxx > Signed-off-by: Bitterblue Smith <rtl8821cerfe2@xxxxxxxxx> Acked-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx>
