Messages in this thread | | | Subject | Re: [PATCH] rtl8xxxu: disable interrupt_in transfer for 8188cu and 8192cu | From | Reto Schneider <> | Date | Mon, 5 Jul 2021 02:35:35 +0200 |
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On 01.07.21 18:33, chris.chiu@canonical.com wrote: > There will be crazy numbers of interrupts triggered by 8188cu and > 8192cu module, around 8000~10000 interrupts per second, on the usb > host controller. Compare with the vendor driver source code, it's > mapping to the configuration CONFIG_USB_INTERRUPT_IN_PIPE and it is > disabled by default. > > Since the interrupt transfer is neither used for TX/RX nor H2C > commands. Disable it to avoid the confusing interrupts for the > 8188cu and 8192cu module which I only have for verification.
I tested the new code on the GARDENA smart gateway and it works as expected. Interrupts are greatly reduced while the same level of TX/RX performance could be measured as before the change: A (too) high percentage of retransmissions, but otherwise fine.
Tested-by: reto.schneider@husqvarnagroup.com
Kind regards, Reto
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