Messages in this thread | | | From | Ikjoon Jang <> | Date | Thu, 10 Jun 2021 11:40:50 +0800 | Subject | Re: [PATCH v3 4/4] usb: xhci-mtk: use first-fit for LS/FS |
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On Fri, May 7, 2021 at 10:11 AM Chunfeng Yun <chunfeng.yun@mediatek.com> wrote: > > Use first-fit instead of best-fit for LS/FS devices under TT, > we found that best-fit will consume more bandwidth for some > cases. > > Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Reviewed-and-Tested-by: Ikjoon Jang <ikjn@chromium.org>
> --- > v3: no changes > --- > drivers/usb/host/xhci-mtk-sch.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/drivers/usb/host/xhci-mtk-sch.c b/drivers/usb/host/xhci-mtk-sch.c > index 9fb75085e40f..c07411d9b16f 100644 > --- a/drivers/usb/host/xhci-mtk-sch.c > +++ b/drivers/usb/host/xhci-mtk-sch.c > @@ -634,6 +634,11 @@ static int check_sch_bw(struct mu3h_sch_bw_info *sch_bw, > min_bw = worst_bw; > min_index = offset; > } > + > + /* use first-fit for LS/FS */ > + if (sch_ep->sch_tt && min_index >= 0) > + break; > + > if (min_bw == 0) > break; > } > -- > 2.18.0 >
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