On Tue, Aug 18, 2020 at 9:59 AM Lorenzo Colitti <lorenzo@xxxxxxxxxx> wrote:
>
> This improves performance on fast connections. When directly
> connecting to a Linux laptop running 5.6, single-stream iperf3
> goes from ~1.7Gbps to ~2.3Gbps out, and from ~620Mbps to ~720Mbps
> in.
>
> Signed-off-by: Lorenzo Colitti <lorenzo@xxxxxxxxxx>
> ---
> drivers/usb/gadget/function/f_ncm.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/usb/gadget/function/f_ncm.c b/drivers/usb/gadget/function/f_ncm.c
> index 0c073df225..57ccf30c6c 100644
> --- a/drivers/usb/gadget/function/f_ncm.c
> +++ b/drivers/usb/gadget/function/f_ncm.c
> @@ -348,7 +348,7 @@ static struct usb_ss_ep_comp_descriptor ss_ncm_notify_comp_desc = {
> .bDescriptorType = USB_DT_SS_ENDPOINT_COMP,
>
> /* the following 3 values can be tweaked if necessary */
> - /* .bMaxBurst = 0, */
> + .bMaxBurst = 15,
> /* .bmAttributes = 0, */
> .wBytesPerInterval = cpu_to_le16(NCM_STATUS_BYTECOUNT),
> };
> @@ -376,7 +376,7 @@ static struct usb_ss_ep_comp_descriptor ss_ncm_bulk_comp_desc = {
> .bDescriptorType = USB_DT_SS_ENDPOINT_COMP,
>
> /* the following 2 values can be tweaked if necessary */
> - /* .bMaxBurst = 0, */
> + .bMaxBurst = 15,
> /* .bmAttributes = 0, */
> };
>
> --
> 2.28.0.220.ged08abb693-goog
>
Reviewed-by: Maciej Żenczykowski <maze@xxxxxxxxxx>
